| ... | ... | @@ -37,9 +37,8 @@ cpu_count_error: ?std.Thread.CpuCountError, |
| 37 | 37 | /// available count, subtract this from either `async_limit` or |
| 38 | 38 | /// `concurrent_limit`. |
| 39 | 39 | busy_count: usize = 0, |
| 40 | | main_thread: Thread, |
| 40 | worker_threads: std.atomic.Value(?*Thread), |
| 41 | 41 | pid: Pid = .unknown, |
| 42 | | robust_cancel: RobustCancel, |
| 43 | 42 | |
| 44 | 43 | wsa: if (is_windows) Wsa else struct {} = .{}, |
| 45 | 44 | |
| ... | ... | @@ -105,13 +104,6 @@ pub const Environ = struct { |
| 105 | 104 | }; |
| 106 | 105 | }; |
| 107 | 106 | |
| 108 | | pub const RobustCancel = if (std.Thread.use_pthreads or native_os == .linux) enum { |
| 109 | | enabled, |
| 110 | | disabled, |
| 111 | | } else enum { |
| 112 | | disabled, |
| 113 | | }; |
| 114 | | |
| 115 | 107 | pub const Pid = if (native_os == .linux) enum(posix.pid_t) { |
| 116 | 108 | unknown = 0, |
| 117 | 109 | _, |
| ... | ... | @@ -153,129 +145,507 @@ pub const UseFchmodat2 = if (have_fchmodat2 and !have_fchmodat_flags) enum { |
| 153 | 145 | pub const default: UseFchmodat2 = .disabled; |
| 154 | 146 | }; |
| 155 | 147 | |
| 156 | | const Thread = struct { |
| 157 | | /// The value that needs to be passed to pthread_kill or tgkill in order to |
| 158 | | /// send a signal. |
| 159 | | signal_id: SignaleeId, |
| 160 | | current_closure: ?*Closure, |
| 161 | | /// Only populated if `current_closure != null`. Indicates the current cancel protection mode. |
| 162 | | cancel_protection: Io.CancelProtection, |
| 163 | | |
| 164 | | const SignaleeId = if (std.Thread.use_pthreads) std.c.pthread_t else std.Thread.Id; |
| 148 | const Runnable = struct { |
| 149 | node: std.SinglyLinkedList.Node, |
| 150 | startFn: *const fn (*Runnable, *Thread, *Threaded) void, |
| 151 | }; |
| 165 | 152 | |
| 166 | | threadlocal var current: ?*Thread = null; |
| 153 | const Group = struct { |
| 154 | ptr: *Io.Group, |
| 167 | 155 | |
| 168 | | fn getCurrent(t: *Threaded) *Thread { |
| 169 | | return current orelse return &t.main_thread; |
| 156 | /// Returns a correctly-typed pointer to the `Io.Group.token` field. |
| 157 | /// |
| 158 | /// The status indicates how many pending tasks are in the group, whether the group has been |
| 159 | /// canceled, and whether the group has been awaited. |
| 160 | /// |
| 161 | /// Note that the zero value of `Status` intentionally represents the initial group state (empty |
| 162 | /// with no awaiters). This is a requirement of `Io.Group`. |
| 163 | fn status(g: Group) *std.atomic.Value(Status) { |
| 164 | return @ptrCast(&g.ptr.token); |
| 165 | } |
| 166 | /// Returns a correctly-typed pointer to the `Io.Group.state` field. The double-pointer here is |
| 167 | /// intentional, because the `state` field itself stores a pointer, and this function returns a |
| 168 | /// pointer to that field. |
| 169 | /// |
| 170 | /// On completion of the whole group, if `status` indicates that there is an awaiter, the last |
| 171 | /// task must increment this `u32` and do a futex wake on it to signal that awaiter. |
| 172 | fn awaiter(g: Group) **std.atomic.Value(u32) { |
| 173 | return @ptrCast(&g.ptr.state); |
| 170 | 174 | } |
| 171 | 175 | |
| 172 | | fn checkCancel(thread: *Thread) error{Canceled}!void { |
| 173 | | const closure = thread.current_closure orelse return; |
| 176 | const Status = packed struct(usize) { |
| 177 | num_running: @Int(.unsigned, @bitSizeOf(usize) - 2), |
| 178 | have_awaiter: bool, |
| 179 | canceled: bool, |
| 180 | }; |
| 174 | 181 | |
| 175 | | switch (thread.cancel_protection) { |
| 176 | | .unblocked => {}, |
| 177 | | .blocked => return, |
| 182 | const Task = struct { |
| 183 | runnable: Runnable, |
| 184 | group: *Io.Group, |
| 185 | func: *const fn (context: *const anyopaque) Io.Cancelable!void, |
| 186 | context_alignment: Alignment, |
| 187 | alloc_len: usize, |
| 188 | |
| 189 | /// `Task.runnable.node` is `undefined` in the created `Task`. |
| 190 | fn create( |
| 191 | gpa: Allocator, |
| 192 | group: Group, |
| 193 | context: []const u8, |
| 194 | context_alignment: Alignment, |
| 195 | func: *const fn (context: *const anyopaque) Io.Cancelable!void, |
| 196 | ) Allocator.Error!*Task { |
| 197 | const max_context_misalignment = context_alignment.toByteUnits() -| @alignOf(Task); |
| 198 | const worst_case_context_offset = context_alignment.forward(@sizeOf(Task) + max_context_misalignment); |
| 199 | const alloc_len = worst_case_context_offset + context.len; |
| 200 | |
| 201 | const task: *Task = @ptrCast(@alignCast(try gpa.alignedAlloc(u8, .of(Task), alloc_len))); |
| 202 | errdefer comptime unreachable; |
| 203 | |
| 204 | task.* = .{ |
| 205 | .runnable = .{ |
| 206 | .node = undefined, |
| 207 | .startFn = &start, |
| 208 | }, |
| 209 | .group = group.ptr, |
| 210 | .func = func, |
| 211 | .context_alignment = context_alignment, |
| 212 | .alloc_len = alloc_len, |
| 213 | }; |
| 214 | @memcpy(task.contextPointer()[0..context.len], context); |
| 215 | return task; |
| 216 | } |
| 217 | |
| 218 | fn destroy(task: *Task, gpa: Allocator) void { |
| 219 | const base: [*]align(@alignOf(Task)) u8 = @ptrCast(task); |
| 220 | gpa.free(base[0..task.alloc_len]); |
| 221 | } |
| 222 | |
| 223 | fn contextPointer(task: *Task) [*]u8 { |
| 224 | const base: [*]u8 = @ptrCast(task); |
| 225 | const offset = task.context_alignment.forward(@intFromPtr(base) + @sizeOf(Task)) - @intFromPtr(base); |
| 226 | return base + offset; |
| 227 | } |
| 228 | |
| 229 | fn start(r: *Runnable, thread: *Thread, t: *Threaded) void { |
| 230 | const task: *Task = @fieldParentPtr("runnable", r); |
| 231 | const group: Group = .{ .ptr = task.group }; |
| 232 | |
| 233 | // This would be a simple store, but it's upgraded to an RMW so we can use `.acquire` to |
| 234 | // enforce the ordering between this and the `group.status().load` below. Paired with |
| 235 | // the `.release` rmw on `Thread.status` in `cancelThreads`, this creates a StoreLoad |
| 236 | // barrier which guarantees that when a group is canceled, either we see the cancelation |
| 237 | // in the group status, or the canceler sees our thread status so can directly notify us |
| 238 | // of the cancelation. |
| 239 | _ = thread.status.swap(.{ |
| 240 | .cancelation = .none, |
| 241 | .awaitable = .fromGroup(group.ptr), |
| 242 | }, .acquire); |
| 243 | if (group.status().load(.monotonic).canceled) { |
| 244 | thread.status.store(.{ |
| 245 | .cancelation = .canceling, |
| 246 | .awaitable = .fromGroup(group.ptr), |
| 247 | }, .monotonic); |
| 248 | } |
| 249 | |
| 250 | const result = task.func(task.contextPointer()); |
| 251 | const cancel_acknowledged = switch (thread.status.load(.monotonic).cancelation) { |
| 252 | .none, .canceling => false, |
| 253 | .canceled => true, |
| 254 | .parked => unreachable, |
| 255 | .blocked => unreachable, |
| 256 | .blocked_windows_dns => unreachable, |
| 257 | .blocked_canceling => unreachable, |
| 258 | }; |
| 259 | if (result) { |
| 260 | assert(!cancel_acknowledged); // group task acknowledged cancelation but did not return `error.Canceled` |
| 261 | } else |err| switch (err) { |
| 262 | error.Canceled => assert(cancel_acknowledged), // group task returned `error.Canceled` but was never canceled |
| 263 | } |
| 264 | |
| 265 | thread.status.store(.{ .cancelation = .none, .awaitable = .null }, .monotonic); |
| 266 | const old_status = group.status().fetchSub(.{ |
| 267 | .num_running = 1, |
| 268 | .have_awaiter = false, |
| 269 | .canceled = false, |
| 270 | }, .acq_rel); // acquire `group.awaiter()`, release task results |
| 271 | assert(old_status.num_running > 0); |
| 272 | if (old_status.have_awaiter and old_status.num_running == 1) { |
| 273 | const to_signal = group.awaiter().*; |
| 274 | // `awaiter` should only be modified by us. For another thread to see `num_running` |
| 275 | // drop to 0 after this point would indicate that another task started up, meaning |
| 276 | // `async`/`cancel` was racing with awaited group completion. |
| 277 | group.awaiter().* = undefined; |
| 278 | _ = to_signal.fetchAdd(1, .release); // release results |
| 279 | Thread.futexWake(&to_signal.raw, 1); |
| 280 | } |
| 281 | |
| 282 | // Task completed. Self-destruct sequence initiated. |
| 283 | task.destroy(t.allocator); |
| 178 | 284 | } |
| 285 | }; |
| 179 | 286 | |
| 180 | | switch (@cmpxchgStrong( |
| 181 | | CancelStatus, |
| 182 | | &closure.cancel_status, |
| 183 | | .requested, |
| 184 | | .acknowledged, |
| 185 | | .acq_rel, |
| 186 | | .acquire, |
| 187 | | ) orelse return error.Canceled) { |
| 188 | | .requested => unreachable, |
| 189 | | .acknowledged => unreachable, |
| 190 | | .none, _ => {}, |
| 287 | /// Assumes the caller has already atomically updated the group status to indicate cancelation, |
| 288 | /// and notifies any already-running threads of this cancelation. |
| 289 | fn cancelThreads(g: Group, t: *Threaded) bool { |
| 290 | var any_blocked = false; |
| 291 | var it = t.worker_threads.load(.acquire); // acquire `Thread` values |
| 292 | while (it) |thread| : (it = thread.next) { |
| 293 | // This non-mutating RMW exists for ordering reasons: see comment in `Group.Task.start` for reasons. |
| 294 | _ = thread.status.fetchOr(.{ .cancelation = @enumFromInt(0), .awaitable = .null }, .release); |
| 295 | if (thread.cancelAwaitable(.fromGroup(g.ptr))) any_blocked = true; |
| 191 | 296 | } |
| 297 | return any_blocked; |
| 192 | 298 | } |
| 193 | 299 | |
| 194 | | fn beginSyscall(thread: *Thread) error{Canceled}!void { |
| 195 | | const closure = thread.current_closure orelse return; |
| 196 | | |
| 197 | | switch (thread.cancel_protection) { |
| 198 | | .unblocked => {}, |
| 199 | | .blocked => return, |
| 300 | /// Uses `Thread.signalCanceledSyscall` to signal any threads which are still blocked in a |
| 301 | /// syscall for this group and have not observed a cancelation request yet. Returns `true` if |
| 302 | /// more signals may be necessary, in which case the caller must call this again after a delay. |
| 303 | fn signalAllCanceledSyscalls(g: Group, t: *Threaded) bool { |
| 304 | var any_signaled = false; |
| 305 | var it = t.worker_threads.load(.acquire); // acquire `Thread` values |
| 306 | while (it) |thread| : (it = thread.next) { |
| 307 | if (thread.signalCanceledSyscall(t, .fromGroup(g.ptr))) any_signaled = true; |
| 200 | 308 | } |
| 309 | return any_signaled; |
| 310 | } |
| 201 | 311 | |
| 202 | | switch (@cmpxchgStrong( |
| 203 | | CancelStatus, |
| 204 | | &closure.cancel_status, |
| 205 | | .none, |
| 206 | | .fromSignaleeId(thread.signal_id), |
| 207 | | .acq_rel, |
| 208 | | .acquire, |
| 209 | | ) orelse return) { |
| 210 | | .none => unreachable, |
| 211 | | .requested => { |
| 212 | | @atomicStore(CancelStatus, &closure.cancel_status, .acknowledged, .release); |
| 213 | | return error.Canceled; |
| 214 | | }, |
| 215 | | .acknowledged => return, |
| 216 | | _ => unreachable, |
| 312 | /// The caller has canceled `g`. Inform any threads working on that group of the cancelation if |
| 313 | /// necessary, and wait for `g` to finish (indicated by `num_completed` being incremented from 0 |
| 314 | /// to 1), while sending regular signals to threads if necessary for them to unblock from any |
| 315 | /// cancelable syscalls. |
| 316 | /// |
| 317 | /// `skip_signals` means it is already known that no threads are currently working on the group |
| 318 | /// so no notifications or signals are necessary. |
| 319 | fn waitForCancelWithSignaling( |
| 320 | g: Group, |
| 321 | t: *Threaded, |
| 322 | num_completed: *std.atomic.Value(u32), |
| 323 | skip_signals: bool, |
| 324 | ) void { |
| 325 | var need_signal: bool = !skip_signals and g.cancelThreads(t); |
| 326 | var timeout_ns: u64 = 1 << 10; |
| 327 | while (true) { |
| 328 | need_signal = need_signal and g.signalAllCanceledSyscalls(t); |
| 329 | Thread.futexWaitUncancelable(&num_completed.raw, 0, if (need_signal) timeout_ns else null); |
| 330 | switch (num_completed.load(.acquire)) { // acquire task results |
| 331 | 0 => {}, |
| 332 | 1 => break, |
| 333 | else => unreachable, |
| 334 | } |
| 335 | timeout_ns <<|= 1; |
| 217 | 336 | } |
| 218 | 337 | } |
| 338 | }; |
| 219 | 339 | |
| 220 | | fn endSyscall(thread: *Thread) void { |
| 221 | | const closure = thread.current_closure orelse return; |
| 340 | /// Trailing data: |
| 341 | /// 1. context |
| 342 | /// 2. result |
| 343 | const Future = struct { |
| 344 | runnable: Runnable, |
| 345 | func: *const fn (context: *const anyopaque, result: *anyopaque) void, |
| 346 | status: std.atomic.Value(Status), |
| 347 | /// On completion, increment this `u32` and do a futex wake on it. |
| 348 | awaiter: *std.atomic.Value(u32), |
| 349 | context_alignment: Alignment, |
| 350 | result_offset: usize, |
| 351 | alloc_len: usize, |
| 222 | 352 | |
| 223 | | switch (thread.cancel_protection) { |
| 224 | | .unblocked => {}, |
| 225 | | .blocked => return, |
| 226 | | } |
| 353 | const Status = packed struct(usize) { |
| 354 | /// The values of this enum are chosen so that await/cancel can just OR with 0b01 and 0b11 |
| 355 | /// respectively. That *does* clobber `.done`, but that's actually fine, because if the tag |
| 356 | /// is `.done` then only the awaiter is referencing this `Future` anyway. |
| 357 | tag: enum(u2) { |
| 358 | /// The future is queued or running (depending on whether `thread` is set). |
| 359 | pending = 0b00, |
| 360 | /// Like `pending`, but the future is being awaited. `Future.awaiter` is populated. |
| 361 | pending_awaited = 0b01, |
| 362 | /// Like `pending`, but the future is being canceled. `Future.awaiter` is populated. |
| 363 | pending_canceled = 0b11, |
| 364 | /// The future has already completed. `thread` is `.null`, unless the future terminated |
| 365 | /// with an acknowledged cancel request, in which case `thread` is `.all_ones`. |
| 366 | done = 0b10, |
| 367 | }, |
| 368 | /// When the future begins execution, this is atomically updated from `null` to the thread running the |
| 369 | /// `Future`, so that cancelation knows which thread to cancel. |
| 370 | thread: Thread.PackedPtr, |
| 371 | }; |
| 372 | |
| 373 | /// `Future.runnable.node` is `undefined` in the created `Future`. |
| 374 | fn create( |
| 375 | gpa: Allocator, |
| 376 | result_len: usize, |
| 377 | result_alignment: Alignment, |
| 378 | context: []const u8, |
| 379 | context_alignment: Alignment, |
| 380 | func: *const fn (context: *const anyopaque, result: *anyopaque) void, |
| 381 | ) Allocator.Error!*Future { |
| 382 | const max_context_misalignment = context_alignment.toByteUnits() -| @alignOf(Future); |
| 383 | const worst_case_context_offset = context_alignment.forward(@sizeOf(Future) + max_context_misalignment); |
| 384 | const worst_case_result_offset = result_alignment.forward(worst_case_context_offset + context.len); |
| 385 | const alloc_len = worst_case_result_offset + result_len; |
| 386 | |
| 387 | const future: *Future = @ptrCast(@alignCast(try gpa.alignedAlloc(u8, .of(Future), alloc_len))); |
| 388 | errdefer comptime unreachable; |
| 227 | 389 | |
| 228 | | _ = @cmpxchgStrong( |
| 229 | | CancelStatus, |
| 230 | | &closure.cancel_status, |
| 231 | | .fromSignaleeId(thread.signal_id), |
| 232 | | .none, |
| 233 | | .acq_rel, |
| 234 | | .acquire, |
| 235 | | ) orelse return; |
| 390 | const actual_context_addr = context_alignment.forward(@intFromPtr(future) + @sizeOf(Future)); |
| 391 | const actual_result_addr = result_alignment.forward(actual_context_addr + context.len); |
| 392 | const actual_result_offset = actual_result_addr - @intFromPtr(future); |
| 393 | future.* = .{ |
| 394 | .runnable = .{ |
| 395 | .node = undefined, |
| 396 | .startFn = &start, |
| 397 | }, |
| 398 | .func = func, |
| 399 | .status = .init(.{ |
| 400 | .tag = .pending, |
| 401 | .thread = .null, |
| 402 | }), |
| 403 | .awaiter = undefined, |
| 404 | .context_alignment = context_alignment, |
| 405 | .result_offset = actual_result_offset, |
| 406 | .alloc_len = alloc_len, |
| 407 | }; |
| 408 | @memcpy(future.contextPointer()[0..context.len], context); |
| 409 | return future; |
| 236 | 410 | } |
| 237 | 411 | |
| 238 | | fn endSyscallErrnoBug(thread: *Thread, err: posix.E) Io.UnexpectedError { |
| 239 | | @branchHint(.cold); |
| 240 | | thread.endSyscall(); |
| 241 | | return errnoBug(err); |
| 412 | fn destroy(future: *Future, gpa: Allocator) void { |
| 413 | const base: [*]align(@alignOf(Future)) u8 = @ptrCast(future); |
| 414 | gpa.free(base[0..future.alloc_len]); |
| 242 | 415 | } |
| 243 | 416 | |
| 244 | | fn endSyscallUnexpectedErrno(thread: *Thread, err: posix.E) Io.UnexpectedError { |
| 245 | | @branchHint(.cold); |
| 246 | | thread.endSyscall(); |
| 247 | | return posix.unexpectedErrno(err); |
| 417 | fn resultPointer(future: *Future) [*]u8 { |
| 418 | const base: [*]u8 = @ptrCast(future); |
| 419 | return base + future.result_offset; |
| 248 | 420 | } |
| 249 | 421 | |
| 250 | | /// inline to make error return traces slightly shallower. |
| 251 | | inline fn endSyscallError(thread: *Thread, err: anytype) @TypeOf(err) { |
| 252 | | thread.endSyscall(); |
| 253 | | return err; |
| 422 | fn contextPointer(future: *Future) [*]u8 { |
| 423 | const base: [*]u8 = @ptrCast(future); |
| 424 | const context_offset = future.context_alignment.forward(@intFromPtr(future) + @sizeOf(Future)) - @intFromPtr(future); |
| 425 | return base + context_offset; |
| 426 | } |
| 427 | |
| 428 | fn start(r: *Runnable, thread: *Thread, t: *Threaded) void { |
| 429 | _ = t; |
| 430 | const future: *Future = @fieldParentPtr("runnable", r); |
| 431 | |
| 432 | thread.status.store(.{ |
| 433 | .cancelation = .none, |
| 434 | .awaitable = .fromFuture(future), |
| 435 | }, .monotonic); |
| 436 | { |
| 437 | const old_status = future.status.fetchOr(.{ |
| 438 | .tag = .pending, |
| 439 | .thread = .pack(thread), |
| 440 | }, .release); |
| 441 | assert(old_status.thread == .null); |
| 442 | switch (old_status.tag) { |
| 443 | .pending, .pending_awaited => {}, |
| 444 | .pending_canceled => thread.status.store(.{ |
| 445 | .cancelation = .canceling, |
| 446 | .awaitable = .fromFuture(future), |
| 447 | }, .monotonic), |
| 448 | .done => unreachable, |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | future.func(future.contextPointer(), future.resultPointer()); |
| 453 | |
| 454 | const had_acknowledged_cancel = switch (thread.status.load(.monotonic).cancelation) { |
| 455 | .none, .canceling => false, |
| 456 | .canceled => true, |
| 457 | .parked => unreachable, |
| 458 | .blocked => unreachable, |
| 459 | .blocked_windows_dns => unreachable, |
| 460 | .blocked_canceling => unreachable, |
| 461 | }; |
| 462 | thread.status.store(.{ .cancelation = .none, .awaitable = .null }, .monotonic); |
| 463 | const old_status = future.status.swap(.{ |
| 464 | .tag = .done, |
| 465 | .thread = if (had_acknowledged_cancel) .all_ones else .null, |
| 466 | }, .acq_rel); // acquire `future.awaiter`, release results |
| 467 | switch (old_status.tag) { |
| 468 | .pending => {}, |
| 469 | .pending_awaited, .pending_canceled => { |
| 470 | const to_signal = future.awaiter; |
| 471 | _ = to_signal.fetchAdd(1, .release); // release results |
| 472 | Thread.futexWake(&to_signal.raw, 1); |
| 473 | }, |
| 474 | .done => unreachable, |
| 475 | } |
| 476 | } |
| 477 | |
| 478 | /// The caller has canceled `future`. `thread` is the thread currently running that future. |
| 479 | /// Inform `thread` of the cancelation if necessary, and wait for `future` to finish (indicated |
| 480 | /// by `num_completed` being incremented from 0 to 1), while sending regular signals to `thread` |
| 481 | /// if necessary for it to unblock from a cancelable syscall. |
| 482 | fn waitForCancelWithSignaling( |
| 483 | future: *Future, |
| 484 | t: *Threaded, |
| 485 | num_completed: *std.atomic.Value(u32), |
| 486 | thread: ?*Thread, |
| 487 | ) void { |
| 488 | var need_signal: bool = thread != null and thread.?.cancelAwaitable(.fromFuture(future)); |
| 489 | var timeout_ns: u64 = 1 << 10; |
| 490 | while (true) { |
| 491 | need_signal = need_signal and thread.?.signalCanceledSyscall(t, .fromFuture(future)); |
| 492 | Thread.futexWaitUncancelable(&num_completed.raw, 0, if (need_signal) timeout_ns else null); |
| 493 | switch (num_completed.load(.acquire)) { // acquire task results |
| 494 | 0 => {}, |
| 495 | 1 => break, |
| 496 | else => unreachable, |
| 497 | } |
| 498 | timeout_ns <<|= 1; |
| 499 | } |
| 500 | } |
| 501 | }; |
| 502 | |
| 503 | /// A sequence of (ptr_bit_width - 3) bits which uniquely identifies a group or future. The bits are |
| 504 | /// the MSBs of the `*Io.Group` or `*Future`. These things do not necessarily have 3 zero bits at |
| 505 | /// the end (they are pointer-aligned, so on 32-bit targets only have 2), but because they both have |
| 506 | /// a *size* of at least 8 bytes, no two groups/futures in memory at the same time will have the |
| 507 | /// same value for all of these bits. In other words, given a group/future pointer, the next group |
| 508 | /// or future must be at least 8 bytes later, so its address will have a different value for one of |
| 509 | /// the top (ptr_bit_width - 3) bits. |
| 510 | const AwaitableId = enum(@Int(.unsigned, @bitSizeOf(usize) - 3)) { |
| 511 | comptime { |
| 512 | assert(@sizeOf(Future) >= 8); |
| 513 | assert(@sizeOf(Io.Group) >= 8); |
| 514 | } |
| 515 | null = 0, |
| 516 | all_ones = std.math.maxInt(@Int(.unsigned, @bitSizeOf(usize) - 3)), |
| 517 | _, |
| 518 | const Split = packed struct(usize) { low: u3, high: AwaitableId }; |
| 519 | fn fromGroup(g: *Io.Group) AwaitableId { |
| 520 | const split: Split = @bitCast(@intFromPtr(g)); |
| 521 | return split.high; |
| 254 | 522 | } |
| 523 | fn fromFuture(f: *Future) AwaitableId { |
| 524 | const split: Split = @bitCast(@intFromPtr(f)); |
| 525 | return split.high; |
| 526 | } |
| 527 | }; |
| 528 | |
| 529 | const Thread = struct { |
| 530 | next: ?*Thread, |
| 531 | |
| 532 | id: std.Thread.Id, |
| 533 | handle: Handle, |
| 534 | |
| 535 | status: std.atomic.Value(Status), |
| 536 | |
| 537 | cancel_protection: Io.CancelProtection, |
| 538 | /// Always released when `Status.cancelation` is set to `.parked`. |
| 539 | futex_waiter: if (use_parking_futex) ?*parking_futex.Waiter else ?noreturn, |
| 540 | |
| 541 | const Handle = Handle: { |
| 542 | if (std.Thread.use_pthreads) break :Handle std.c.pthread_t; |
| 543 | if (builtin.target.os.tag == .windows) break :Handle windows.HANDLE; |
| 544 | break :Handle void; |
| 545 | }; |
| 546 | |
| 547 | const Status = packed struct(usize) { |
| 548 | /// The specific values of these enum fields are chosen to simplify the implementation of |
| 549 | /// the transformations we need to apply to this state. |
| 550 | cancelation: enum(u3) { |
| 551 | /// The thread has not yet been canceled, and is not in a cancelable operation. |
| 552 | /// To request cancelation, just set the status to `.canceling`. |
| 553 | none = 0b000, |
| 554 | |
| 555 | /// The thread is parked in a cancelable futex wait or sleep. |
| 556 | /// Only applicable if `use_parking_futex` or `use_parking_sleep`. |
| 557 | /// To request cancelation, set the status to `.canceling` and unpark the thread. |
| 558 | /// To unpark for another reason (futex wake), set the status to `.none` and unpark the thread. |
| 559 | parked = 0b001, |
| 560 | |
| 561 | /// The thread is blocked in a cancelable system call. |
| 562 | /// To request cancelation, set the status to `.blocked_canceling` and repeatedly interrupt the system call until the status changes. |
| 563 | blocked = 0b011, |
| 564 | |
| 565 | /// Windows-only: the thread is blocked in a call to `GetAddrInfoExW`. |
| 566 | /// To request cancelation, set the status to `.canceling` and call `GetAddrInfoExCancel`. |
| 567 | blocked_windows_dns = 0b010, |
| 568 | |
| 569 | /// The thread has an outstanding cancelation request but is not in a cancelable operation. |
| 570 | /// When it acknowledges the cancelation, it will set the status to `.canceled`. |
| 571 | canceling = 0b110, |
| 572 | |
| 573 | /// The thread has received and acknowledged a cancelation request. |
| 574 | /// If `recancel` is called, the status will revert to `.canceling`, but otherwise, the status |
| 575 | /// will not change for the remainder of this task's execution. |
| 576 | canceled = 0b111, |
| 577 | |
| 578 | /// The thread is blocked in a cancelable system call, and is being canceled. The thread which triggered the cancelation will send signals to this thread |
| 579 | /// until its status changes. |
| 580 | blocked_canceling = 0b101, |
| 581 | }, |
| 582 | |
| 583 | /// We cannot turn this value back into a pointer. Instead, it exists so that a task can be |
| 584 | /// canceled by a cmpxchg on thread status: if it is running the task we want to cancel, |
| 585 | /// then update the `cancelation` field. |
| 586 | awaitable: AwaitableId, |
| 587 | }; |
| 255 | 588 | |
| 256 | | fn currentSignalId() SignaleeId { |
| 257 | | return if (std.Thread.use_pthreads) std.c.pthread_self() else std.Thread.getCurrentId(); |
| 589 | const SignaleeId = if (std.Thread.use_pthreads) std.c.pthread_t else std.Thread.Id; |
| 590 | |
| 591 | threadlocal var current: ?*Thread = null; |
| 592 | |
| 593 | /// The thread is neither in a syscall nor entering one, but we want to check for cancelation |
| 594 | /// anyway. If there is a pending cancel request, acknowledge it and return `error.Canceled`. |
| 595 | fn checkCancel() Io.Cancelable!void { |
| 596 | const thread = Thread.current orelse return; |
| 597 | switch (thread.cancel_protection) { |
| 598 | .blocked => return, |
| 599 | .unblocked => {}, |
| 600 | } |
| 601 | // Here, unlike `Syscall.checkCancel`, it's not particularly likely that we're canceled, so |
| 602 | // it seems preferable to do a cheap atomic load and, in the unlikely case, a separate store |
| 603 | // to acknowledge. Besides, the state transitions we need here can't be done with one atomic |
| 604 | // OR/AND/XOR on `Status.cancelation`, so we don't actually have any other option. |
| 605 | const status = thread.status.load(.monotonic); |
| 606 | switch (status.cancelation) { |
| 607 | .parked => unreachable, |
| 608 | .blocked => unreachable, |
| 609 | .blocked_windows_dns => unreachable, |
| 610 | .blocked_canceling => unreachable, |
| 611 | .none, .canceled => {}, |
| 612 | .canceling => { |
| 613 | thread.status.store(.{ |
| 614 | .cancelation = .canceled, |
| 615 | .awaitable = status.awaitable, |
| 616 | }, .monotonic); |
| 617 | return error.Canceled; |
| 618 | }, |
| 619 | } |
| 258 | 620 | } |
| 259 | 621 | |
| 260 | | fn futexWaitUncancelable(ptr: *const u32, expect: u32) void { |
| 261 | | return Thread.futexWaitTimed(null, ptr, expect, null) catch unreachable; |
| 622 | fn futexWaitUncancelable(ptr: *const u32, expect: u32, timeout_ns: ?u64) void { |
| 623 | return Thread.futexWaitInner(ptr, expect, true, timeout_ns) catch unreachable; |
| 262 | 624 | } |
| 263 | 625 | |
| 264 | | fn futexWait(thread: *Thread, ptr: *const u32, expect: u32) Io.Cancelable!void { |
| 265 | | return Thread.futexWaitTimed(thread, ptr, expect, null) catch |err| switch (err) { |
| 266 | | error.Canceled => return error.Canceled, |
| 267 | | error.Timeout => unreachable, |
| 268 | | }; |
| 626 | fn futexWait(ptr: *const u32, expect: u32, timeout_ns: ?u64) Io.Cancelable!void { |
| 627 | return Thread.futexWaitInner(ptr, expect, false, timeout_ns); |
| 269 | 628 | } |
| 270 | 629 | |
| 271 | | fn futexWaitTimed(thread: ?*Thread, ptr: *const u32, expect: u32, timeout_ns: ?u64) Io.Cancelable!void { |
| 630 | fn futexWaitInner(ptr: *const u32, expect: u32, uncancelable: bool, timeout_ns: ?u64) Io.Cancelable!void { |
| 272 | 631 | @branchHint(.cold); |
| 273 | 632 | |
| 274 | 633 | if (builtin.single_threaded) unreachable; // nobody would ever wake us |
| 275 | 634 | |
| 276 | | if (builtin.cpu.arch.isWasm()) { |
| 635 | if (use_parking_futex) { |
| 636 | return parking_futex.wait( |
| 637 | ptr, |
| 638 | expect, |
| 639 | uncancelable, |
| 640 | if (timeout_ns) |ns| .{ .duration = .{ |
| 641 | .raw = .fromNanoseconds(ns), |
| 642 | .clock = .boot, |
| 643 | } } else .none, |
| 644 | ); |
| 645 | } else if (builtin.cpu.arch.isWasm()) { |
| 277 | 646 | comptime assert(builtin.cpu.has(.wasm, .atomics)); |
| 278 | | if (thread) |t| try t.checkCancel(); |
| 647 | // TODO implement cancelation for WASM futex waits by signaling the futex |
| 648 | if (!uncancelable) try Thread.checkCancel(); |
| 279 | 649 | const to: i64 = if (timeout_ns) |ns| ns else -1; |
| 280 | 650 | const signed_expect: i32 = @bitCast(expect); |
| 281 | 651 | const result = asm volatile ( |
| ... | ... | @@ -303,9 +673,9 @@ const Thread = struct { |
| 303 | 673 | ts_buffer = timestampToPosix(ns); |
| 304 | 674 | break :ts &ts_buffer; |
| 305 | 675 | } else null; |
| 306 | | if (thread) |t| try t.beginSyscall(); |
| 676 | const syscall: Syscall = if (uncancelable) .{ .thread = null } else try .start(); |
| 307 | 677 | const rc = linux.futex_4arg(ptr, .{ .cmd = .WAIT, .private = true }, expect, ts); |
| 308 | | if (thread) |t| t.endSyscall(); |
| 678 | syscall.finish(); |
| 309 | 679 | switch (linux.errno(rc)) { |
| 310 | 680 | .SUCCESS => {}, // notified by `wake()` |
| 311 | 681 | .INTR => {}, // caller's responsibility to retry |
| ... | ... | @@ -322,7 +692,7 @@ const Thread = struct { |
| 322 | 692 | .op = .COMPARE_AND_WAIT, |
| 323 | 693 | .NO_ERRNO = true, |
| 324 | 694 | }; |
| 325 | | if (thread) |t| try t.beginSyscall(); |
| 695 | const syscall: Syscall = if (uncancelable) .{ .thread = null } else try .start(); |
| 326 | 696 | const status = switch (darwin_supports_ulock_wait2) { |
| 327 | 697 | true => c.__ulock_wait2(flags, ptr, expect, ns: { |
| 328 | 698 | const ns = timeout_ns orelse break :ns 0; |
| ... | ... | @@ -336,7 +706,7 @@ const Thread = struct { |
| 336 | 706 | break :us us; |
| 337 | 707 | }), |
| 338 | 708 | }; |
| 339 | | if (thread) |t| t.endSyscall(); |
| 709 | syscall.finish(); |
| 340 | 710 | if (status >= 0) return; |
| 341 | 711 | switch (@as(c.E, @enumFromInt(-status))) { |
| 342 | 712 | .INTR => {}, // spurious wake |
| ... | ... | @@ -348,24 +718,6 @@ const Thread = struct { |
| 348 | 718 | else => recoverableOsBugDetected(), |
| 349 | 719 | } |
| 350 | 720 | }, |
| 351 | | .windows => { |
| 352 | | var timeout_value: windows.LARGE_INTEGER = undefined; |
| 353 | | var timeout_ptr: ?*const windows.LARGE_INTEGER = null; |
| 354 | | // NTDLL functions work with time in units of 100 nanoseconds. |
| 355 | | // Positive values are absolute deadlines while negative values are relative durations. |
| 356 | | if (timeout_ns) |delay| { |
| 357 | | timeout_value = @as(windows.LARGE_INTEGER, @intCast(delay / 100)); |
| 358 | | timeout_value = -timeout_value; |
| 359 | | timeout_ptr = &timeout_value; |
| 360 | | } |
| 361 | | if (thread) |t| try t.checkCancel(); |
| 362 | | switch (windows.ntdll.RtlWaitOnAddress(ptr, &expect, @sizeOf(@TypeOf(expect)), timeout_ptr)) { |
| 363 | | .SUCCESS => {}, |
| 364 | | .CANCELLED => {}, |
| 365 | | .TIMEOUT => {}, // timeout |
| 366 | | else => recoverableOsBugDetected(), |
| 367 | | } |
| 368 | | }, |
| 369 | 721 | .freebsd => { |
| 370 | 722 | const flags = @intFromEnum(std.c.UMTX_OP.WAIT_UINT_PRIVATE); |
| 371 | 723 | var tm_size: usize = 0; |
| ... | ... | @@ -378,9 +730,9 @@ const Thread = struct { |
| 378 | 730 | tm.clockid = .MONOTONIC; |
| 379 | 731 | tm.timeout = timestampToPosix(ns); |
| 380 | 732 | } |
| 381 | | if (thread) |t| try t.beginSyscall(); |
| 733 | const syscall: Syscall = if (uncancelable) .{ .thread = null } else try .start(); |
| 382 | 734 | const rc = std.c._umtx_op(@intFromPtr(ptr), flags, @as(c_ulong, expect), tm_size, @intFromPtr(tm_ptr)); |
| 383 | | if (thread) |t| t.endSyscall(); |
| 735 | syscall.finish(); |
| 384 | 736 | if (is_debug) switch (posix.errno(rc)) { |
| 385 | 737 | .SUCCESS => {}, |
| 386 | 738 | .FAULT => unreachable, // one of the args points to invalid memory |
| ... | ... | @@ -397,7 +749,7 @@ const Thread = struct { |
| 397 | 749 | tm_ptr = &tm; |
| 398 | 750 | tm = timestampToPosix(ns); |
| 399 | 751 | } |
| 400 | | if (thread) |t| try t.beginSyscall(); |
| 752 | const syscall: Syscall = if (uncancelable) .{ .thread = null } else try .start(); |
| 401 | 753 | const rc = std.c.futex( |
| 402 | 754 | ptr, |
| 403 | 755 | std.c.FUTEX.WAIT | std.c.FUTEX.PRIVATE_FLAG, |
| ... | ... | @@ -405,7 +757,7 @@ const Thread = struct { |
| 405 | 757 | tm_ptr, |
| 406 | 758 | null, // uaddr2 is ignored |
| 407 | 759 | ); |
| 408 | | if (thread) |t| t.endSyscall(); |
| 760 | syscall.finish(); |
| 409 | 761 | if (is_debug) switch (posix.errno(rc)) { |
| 410 | 762 | .SUCCESS => {}, |
| 411 | 763 | .NOSYS => unreachable, // constant op known good value |
| ... | ... | @@ -424,9 +776,9 @@ const Thread = struct { |
| 424 | 776 | } else { |
| 425 | 777 | timeout_us = 0; |
| 426 | 778 | } |
| 427 | | if (thread) |t| try t.beginSyscall(); |
| 779 | const syscall: Syscall = if (uncancelable) .{ .thread = null } else try .start(); |
| 428 | 780 | const rc = std.c.umtx_sleep(@ptrCast(ptr), @bitCast(expect), timeout_us); |
| 429 | | if (thread) |t| t.endSyscall(); |
| 781 | syscall.finish(); |
| 430 | 782 | if (is_debug) switch (std.posix.errno(rc)) { |
| 431 | 783 | .SUCCESS => {}, |
| 432 | 784 | .BUSY => {}, // ptr != expect |
| ... | ... | @@ -436,14 +788,7 @@ const Thread = struct { |
| 436 | 788 | else => unreachable, |
| 437 | 789 | }; |
| 438 | 790 | }, |
| 439 | | else => if (std.Thread.use_pthreads) { |
| 440 | | // TODO integrate the following function being called with robust cancelation. |
| 441 | | return pthreads_futex.wait(ptr, expect, timeout_ns) catch |err| switch (err) { |
| 442 | | error.Timeout => {}, |
| 443 | | }; |
| 444 | | } else { |
| 445 | | @compileError("unimplemented: futexWait"); |
| 446 | | }, |
| 791 | else => @compileError("unimplemented: futexWait"), |
| 447 | 792 | } |
| 448 | 793 | } |
| 449 | 794 | |
| ... | ... | @@ -453,7 +798,9 @@ const Thread = struct { |
| 453 | 798 | |
| 454 | 799 | if (builtin.single_threaded) return; // nothing to wake up |
| 455 | 800 | |
| 456 | | if (builtin.cpu.arch.isWasm()) { |
| 801 | if (use_parking_futex) { |
| 802 | return parking_futex.wake(ptr, max_waiters); |
| 803 | } else if (builtin.cpu.arch.isWasm()) { |
| 457 | 804 | comptime assert(builtin.cpu.has(.wasm, .atomics)); |
| 458 | 805 | const woken_count = asm volatile ( |
| 459 | 806 | \\local.get %[ptr] |
| ... | ... | @@ -498,12 +845,6 @@ const Thread = struct { |
| 498 | 845 | } |
| 499 | 846 | } |
| 500 | 847 | }, |
| 501 | | .windows => { |
| 502 | | switch (max_waiters) { |
| 503 | | 1 => windows.ntdll.RtlWakeAddressSingle(ptr), |
| 504 | | else => windows.ntdll.RtlWakeAddressAll(ptr), |
| 505 | | } |
| 506 | | }, |
| 507 | 848 | .freebsd => { |
| 508 | 849 | const rc = std.c._umtx_op( |
| 509 | 850 | @intFromPtr(ptr), |
| ... | ... | @@ -536,130 +877,239 @@ const Thread = struct { |
| 536 | 877 | @min(max_waiters, std.math.maxInt(c_int)), |
| 537 | 878 | ); |
| 538 | 879 | }, |
| 539 | | else => if (std.Thread.use_pthreads) { |
| 540 | | return pthreads_futex.wake(ptr, max_waiters); |
| 541 | | } else { |
| 542 | | @compileError("unimplemented: futexWake"); |
| 543 | | }, |
| 880 | else => @compileError("unimplemented: futexWake"), |
| 544 | 881 | } |
| 545 | 882 | } |
| 546 | | }; |
| 547 | | |
| 548 | | const max_iovecs_len = 8; |
| 549 | | const splat_buffer_size = 64; |
| 550 | 883 | |
| 551 | | comptime { |
| 552 | | if (@TypeOf(posix.IOV_MAX) != void) assert(max_iovecs_len <= posix.IOV_MAX); |
| 553 | | } |
| 884 | /// Cancels `thread` if it is working on `awaitable`. |
| 885 | /// |
| 886 | /// It is possible that `thread` gets canceled by this function, but is blocked in a syscall. In |
| 887 | /// that case, the thread may need to be sent a signal to interrupt the call. This function will |
| 888 | /// return `true` to indicate this, in which case the caller must call `signalCanceledSyscall`. |
| 889 | fn cancelAwaitable(thread: *Thread, awaitable: AwaitableId) bool { |
| 890 | var status = thread.status.load(.monotonic); |
| 891 | while (true) { |
| 892 | if (status.awaitable != awaitable) return false; // thread is working on something else |
| 893 | status = switch (status.cancelation) { |
| 894 | .none => thread.status.cmpxchgWeak( |
| 895 | .{ .cancelation = .none, .awaitable = awaitable }, |
| 896 | .{ .cancelation = .canceling, .awaitable = awaitable }, |
| 897 | .monotonic, |
| 898 | .monotonic, |
| 899 | ) orelse return false, |
| 900 | |
| 901 | .parked => thread.status.cmpxchgWeak( |
| 902 | .{ .cancelation = .parked, .awaitable = awaitable }, |
| 903 | .{ .cancelation = .canceling, .awaitable = awaitable }, |
| 904 | .acquire, // acquire `thread.futex_waiter` |
| 905 | .monotonic, |
| 906 | ) orelse { |
| 907 | if (!use_parking_futex and !use_parking_sleep) unreachable; |
| 908 | if (thread.futex_waiter) |futex_waiter| { |
| 909 | parking_futex.removeCanceledWaiter(futex_waiter); |
| 910 | } |
| 911 | unpark(&.{thread.id}, null); |
| 912 | return false; |
| 913 | }, |
| 554 | 914 | |
| 555 | | const CancelStatus = enum(usize) { |
| 556 | | /// Cancellation has neither been requested, nor checked. The async |
| 557 | | /// operation will check status before entering a blocking syscall. |
| 558 | | /// This is also the status used for uninteruptible tasks. |
| 559 | | none = 0, |
| 560 | | /// Cancellation has been requested and the status will be checked before |
| 561 | | /// entering a blocking syscall. |
| 562 | | requested = std.math.maxInt(usize) - 1, |
| 563 | | /// Cancellation has been acknowledged and is in progress. Signals should |
| 564 | | /// not be sent. |
| 565 | | acknowledged = std.math.maxInt(usize), |
| 566 | | /// Stores a `Thread.SignaleeId` and indicates that sending a signal to this thread |
| 567 | | /// is needed in order to cancel. This state is set before going into |
| 568 | | /// a blocking operation that needs to get unblocked via signal. |
| 569 | | _, |
| 915 | .blocked => thread.status.cmpxchgWeak( |
| 916 | .{ .cancelation = .blocked, .awaitable = awaitable }, |
| 917 | .{ .cancelation = .blocked_canceling, .awaitable = awaitable }, |
| 918 | .monotonic, |
| 919 | .monotonic, |
| 920 | ) orelse return true, |
| 921 | |
| 922 | .blocked_windows_dns => thread.status.cmpxchgWeak( |
| 923 | .{ .cancelation = .blocked_windows_dns, .awaitable = awaitable }, |
| 924 | .{ .cancelation = .canceling, .awaitable = awaitable }, |
| 925 | .monotonic, |
| 926 | .monotonic, |
| 927 | ) orelse { |
| 928 | if (builtin.target.os.tag != .windows) unreachable; |
| 929 | if (true) { |
| 930 | // TODO: cancel Windows DNS queries. This code path is currently impossible |
| 931 | // as `netLookupFallible` doesn't actually use `.blocked_windows_dns` yet. |
| 932 | unreachable; |
| 933 | } |
| 934 | return false; |
| 935 | }, |
| 570 | 936 | |
| 571 | | const Unpacked = union(enum) { |
| 572 | | none, |
| 573 | | requested, |
| 574 | | acknowledged, |
| 575 | | signal_id: Thread.SignaleeId, |
| 576 | | }; |
| 577 | | |
| 578 | | fn unpack(cs: CancelStatus) Unpacked { |
| 579 | | return switch (cs) { |
| 580 | | .none => .none, |
| 581 | | .requested => .requested, |
| 582 | | .acknowledged => .acknowledged, |
| 583 | | _ => |signal_id| .{ |
| 584 | | .signal_id = if (std.Thread.use_pthreads) |
| 585 | | @ptrFromInt(@intFromEnum(signal_id)) |
| 586 | | else |
| 587 | | @truncate(@intFromEnum(signal_id)), |
| 588 | | }, |
| 589 | | }; |
| 590 | | } |
| 937 | .canceling, .canceled => { |
| 938 | // This can happen when the task start raced with the cancelation, so the thread |
| 939 | // saw the cancelation on the future/group *and* we are trying to signal the |
| 940 | // thread here. |
| 941 | return false; |
| 942 | }, |
| 591 | 943 | |
| 592 | | fn fromSignaleeId(signal_id: Thread.SignaleeId) CancelStatus { |
| 593 | | return if (std.Thread.use_pthreads) |
| 594 | | @enumFromInt(@intFromPtr(signal_id)) |
| 595 | | else |
| 596 | | @enumFromInt(signal_id); |
| 944 | .blocked_canceling => unreachable, |
| 945 | }; |
| 946 | } |
| 597 | 947 | } |
| 598 | | }; |
| 599 | | |
| 600 | | const Closure = struct { |
| 601 | | start: Start, |
| 602 | | node: std.SinglyLinkedList.Node = .{}, |
| 603 | | cancel_status: CancelStatus, |
| 604 | 948 | |
| 605 | | const Start = *const fn (*Closure, *Threaded) void; |
| 606 | | |
| 607 | | fn requestCancel(closure: *Closure, t: *Threaded) void { |
| 608 | | var signal_id = switch (@atomicRmw(CancelStatus, &closure.cancel_status, .Xchg, .requested, .monotonic).unpack()) { |
| 609 | | .none, .acknowledged, .requested => return, |
| 610 | | .signal_id => |signal_id| signal_id, |
| 611 | | }; |
| 612 | | // The task will enter a blocking syscall before checking for cancellation again. |
| 613 | | // We can send a signal to interrupt the syscall, but if it arrives before |
| 614 | | // the syscall instruction, it will be missed. Therefore, this code tries |
| 615 | | // again until the cancellation request is acknowledged. |
| 616 | | |
| 617 | | // 1 << 10 ns is about 1 microsecond, approximately syscall overhead. |
| 618 | | // 1 << 20 ns is about 1 millisecond. |
| 619 | | // 1 << 30 ns is about 1 second. |
| 620 | | // |
| 621 | | // On a heavily loaded Linux 6.17.5, I observed a maximum of 20 |
| 622 | | // attempts not acknowledged before the timeout (including exponential |
| 623 | | // backoff) was sufficient, despite the heavy load. |
| 624 | | const max_attempts = 22; |
| 625 | | |
| 626 | | for (0..max_attempts) |attempt_index| { |
| 627 | | if (std.Thread.use_pthreads) { |
| 628 | | if (std.c.pthread_kill(signal_id, .IO) != 0) return; |
| 629 | | } else if (native_os == .linux) { |
| 630 | | const pid: posix.pid_t = p: { |
| 949 | /// Sends a signal to `thread` if it is still blocked in a syscall (i.e. has not yet observed |
| 950 | /// the cancelation request from `cancelAwaitable`). |
| 951 | /// |
| 952 | /// Unfortunately, the signal could arrive before the syscall actually starts, so the interrupt |
| 953 | /// is missed. To handle this, we may need to send multiple signals. As such, if this function |
| 954 | /// returns `true`, then it should be called again after a short delay to send another signal if |
| 955 | /// the thread is still blocked. For the implementation, `Future.waitForCancelWithSignaling` and |
| 956 | /// `Group.waitForCancelWithSignaling`: they use exponential backoff starting at a 1us delay and |
| 957 | /// doubling each call. In practice, it is rare to send more than one signal. |
| 958 | fn signalCanceledSyscall(thread: *Thread, t: *Threaded, awaitable: AwaitableId) bool { |
| 959 | const bad_status: Status = .{ .cancelation = .blocked_canceling, .awaitable = awaitable }; |
| 960 | if (thread.status.load(.monotonic) != bad_status) return false; |
| 961 | |
| 962 | // The thread ID and/or handle can be read non-atomically because they never change and were |
| 963 | // released by the store that made `thread` available to us. |
| 964 | |
| 965 | if (std.Thread.use_pthreads) { |
| 966 | return switch (std.c.pthread_kill(thread.handle, .IO)) { |
| 967 | 0 => true, |
| 968 | else => false, |
| 969 | }; |
| 970 | } else switch (builtin.target.os.tag) { |
| 971 | .linux => { |
| 972 | const pid: posix.pid_t = pid: { |
| 631 | 973 | const cached_pid = @atomicLoad(Pid, &t.pid, .monotonic); |
| 632 | | if (cached_pid != .unknown) break :p @intFromEnum(cached_pid); |
| 974 | if (cached_pid != .unknown) break :pid @intFromEnum(cached_pid); |
| 633 | 975 | const pid = std.os.linux.getpid(); |
| 634 | 976 | @atomicStore(Pid, &t.pid, @enumFromInt(pid), .monotonic); |
| 635 | | break :p pid; |
| 977 | break :pid pid; |
| 636 | 978 | }; |
| 637 | | if (std.os.linux.tgkill(pid, @bitCast(signal_id), .IO) != 0) return; |
| 638 | | } else { |
| 639 | | return; |
| 640 | | } |
| 979 | return switch (std.os.linux.tgkill(pid, @bitCast(thread.id), .IO)) { |
| 980 | 0 => true, |
| 981 | else => false, |
| 982 | }; |
| 983 | }, |
| 984 | .windows => { |
| 985 | var iosb: windows.IO_STATUS_BLOCK = undefined; |
| 986 | return switch (windows.ntdll.NtCancelSynchronousIoFile(thread.handle, null, &iosb)) { |
| 987 | .NOT_FOUND => true, // this might mean the operation hasn't started yet |
| 988 | .SUCCESS => false, // the OS confirmed that our cancelation worked |
| 989 | else => false, |
| 990 | }; |
| 991 | }, |
| 992 | else => return false, |
| 993 | } |
| 994 | } |
| 641 | 995 | |
| 642 | | if (t.robust_cancel != .enabled) return; |
| 996 | /// Like a `*Thread`, but 2 bits smaller than a pointer (because the LSBs are always 0 due to |
| 997 | /// alignment) so that those two bits can be used in a `packed struct`. |
| 998 | const PackedPtr = enum(@Int(.unsigned, @bitSizeOf(usize) - 2)) { |
| 999 | null = 0, |
| 1000 | all_ones = std.math.maxInt(@Int(.unsigned, @bitSizeOf(usize) - 2)), |
| 1001 | _, |
| 643 | 1002 | |
| 644 | | var timespec: posix.timespec = .{ |
| 645 | | .sec = 0, |
| 646 | | .nsec = @as(isize, 1) << @intCast(attempt_index), |
| 647 | | }; |
| 648 | | if (native_os == .linux) { |
| 649 | | _ = std.os.linux.clock_nanosleep(posix.CLOCK.MONOTONIC, .{ .ABSTIME = false }, ×pec, ×pec); |
| 650 | | } else { |
| 651 | | _ = posix.system.nanosleep(×pec, ×pec); |
| 652 | | } |
| 1003 | const Split = packed struct(usize) { low: u2, high: PackedPtr }; |
| 1004 | fn pack(ptr: *Thread) PackedPtr { |
| 1005 | const split: Split = @bitCast(@intFromPtr(ptr)); |
| 1006 | assert(split.low == 0); |
| 1007 | return split.high; |
| 1008 | } |
| 1009 | fn unpack(ptr: PackedPtr) ?*Thread { |
| 1010 | const split: Split = .{ .low = 0, .high = ptr }; |
| 1011 | return @ptrFromInt(@as(usize, @bitCast(split))); |
| 1012 | } |
| 1013 | }; |
| 1014 | }; |
| 653 | 1015 | |
| 654 | | switch (@atomicRmw(CancelStatus, &closure.cancel_status, .Xchg, .requested, .monotonic).unpack()) { |
| 655 | | .requested => continue, // Retry needed in case other thread hasn't yet entered the syscall. |
| 656 | | .none, .acknowledged => return, |
| 657 | | .signal_id => |new_signal_id| signal_id = new_signal_id, |
| 658 | | } |
| 1016 | const Syscall = struct { |
| 1017 | thread: ?*Thread, |
| 1018 | /// Marks entry to a syscall region. This should be tightly scoped around the actual syscall |
| 1019 | /// to minimize races. The syscall must be marked as "finished" by `checkCancel`, `finish`, |
| 1020 | /// or one of the wrappers of `finish`. |
| 1021 | fn start() Io.Cancelable!Syscall { |
| 1022 | const thread = Thread.current orelse return .{ .thread = null }; |
| 1023 | switch (thread.cancel_protection) { |
| 1024 | .blocked => return .{ .thread = null }, |
| 1025 | .unblocked => {}, |
| 659 | 1026 | } |
| 1027 | switch (thread.status.fetchOr(.{ |
| 1028 | .cancelation = @enumFromInt(0b011), |
| 1029 | .awaitable = .null, |
| 1030 | }, .monotonic).cancelation) { |
| 1031 | .parked => unreachable, |
| 1032 | .blocked => unreachable, |
| 1033 | .blocked_windows_dns => unreachable, |
| 1034 | .blocked_canceling => unreachable, |
| 1035 | .none => return .{ .thread = thread }, // new status is `.blocked` |
| 1036 | .canceling => return error.Canceled, // new status is `.canceled` |
| 1037 | .canceled => return .{ .thread = null }, // new status is `.canceled` (unchanged) |
| 1038 | } |
| 1039 | } |
| 1040 | /// Checks whether this syscall has been canceled. This should be called when a syscall is |
| 1041 | /// interrupted through a mechanism which may indicate cancelation, or may be spurious. If |
| 1042 | /// the syscall was canceled, it is finished and `error.Canceled` is returned. Otherwise, |
| 1043 | /// the syscall is not marked finished, and the caller should retry. |
| 1044 | fn checkCancel(s: Syscall) Io.Cancelable!void { |
| 1045 | const thread = s.thread orelse return; |
| 1046 | switch (thread.status.fetchOr(.{ |
| 1047 | .cancelation = @enumFromInt(0b010), |
| 1048 | .awaitable = .null, |
| 1049 | }, .monotonic).cancelation) { |
| 1050 | .none => unreachable, |
| 1051 | .parked => unreachable, |
| 1052 | .blocked_windows_dns => unreachable, |
| 1053 | .canceling => unreachable, |
| 1054 | .canceled => unreachable, |
| 1055 | .blocked => {}, // new status is `.blocked` (unchanged) |
| 1056 | .blocked_canceling => return error.Canceled, // new status is `.canceled` |
| 1057 | } |
| 1058 | } |
| 1059 | /// Marks this syscall as finished. |
| 1060 | fn finish(s: Syscall) void { |
| 1061 | const thread = s.thread orelse return; |
| 1062 | switch (thread.status.fetchXor(.{ |
| 1063 | .cancelation = @enumFromInt(0b011), |
| 1064 | .awaitable = .null, |
| 1065 | }, .monotonic).cancelation) { |
| 1066 | .none => unreachable, |
| 1067 | .parked => unreachable, |
| 1068 | .blocked_windows_dns => unreachable, |
| 1069 | .canceling => unreachable, |
| 1070 | .canceled => unreachable, |
| 1071 | .blocked => {}, // new status is `.none` |
| 1072 | .blocked_canceling => {}, // new status is `.canceling` |
| 1073 | } |
| 1074 | } |
| 1075 | /// Convenience wrapper which calls `finish`, then returns `err`. |
| 1076 | fn fail(s: Syscall, err: anytype) @TypeOf(err) { |
| 1077 | s.finish(); |
| 1078 | return err; |
| 1079 | } |
| 1080 | /// Convenience wrapper which calls `finish`, then calls `Threaded.errnoBug`. |
| 1081 | fn errnoBug(s: Syscall, err: posix.E) Io.UnexpectedError { |
| 1082 | @branchHint(.cold); |
| 1083 | s.finish(); |
| 1084 | return Threaded.errnoBug(err); |
| 1085 | } |
| 1086 | /// Convenience wrapper which calls `finish`, then calls `posix.unexpectedErrno`. |
| 1087 | fn unexpectedErrno(s: Syscall, err: posix.E) Io.UnexpectedError { |
| 1088 | @branchHint(.cold); |
| 1089 | s.finish(); |
| 1090 | return posix.unexpectedErrno(err); |
| 1091 | } |
| 1092 | /// Convenience wrapper which calls `finish`, then calls `windows.statusBug`. |
| 1093 | fn ntstatusBug(s: Syscall, status: windows.NTSTATUS) Io.UnexpectedError { |
| 1094 | @branchHint(.cold); |
| 1095 | s.finish(); |
| 1096 | return windows.statusBug(status); |
| 1097 | } |
| 1098 | /// Convenience wrapper which calls `finish`, then calls `windows.unexpectedStatus`. |
| 1099 | fn unexpectedNtstatus(s: Syscall, status: windows.NTSTATUS) Io.UnexpectedError { |
| 1100 | @branchHint(.cold); |
| 1101 | s.finish(); |
| 1102 | return windows.unexpectedStatus(status); |
| 660 | 1103 | } |
| 661 | 1104 | }; |
| 662 | 1105 | |
| 1106 | const max_iovecs_len = 8; |
| 1107 | const splat_buffer_size = 64; |
| 1108 | |
| 1109 | comptime { |
| 1110 | if (@TypeOf(posix.IOV_MAX) != void) assert(max_iovecs_len <= posix.IOV_MAX); |
| 1111 | } |
| 1112 | |
| 663 | 1113 | pub const InitOptions = struct { |
| 664 | 1114 | /// Affects how many bytes are memory-mapped for threads. |
| 665 | 1115 | stack_size: usize = std.Thread.SpawnConfig.default_stack_size, |
| ... | ... | @@ -681,17 +1131,6 @@ pub const InitOptions = struct { |
| 681 | 1131 | /// concurrent tasks. After this number, calls to `Io.concurrent` return |
| 682 | 1132 | /// `error.ConcurrencyUnavailable`. |
| 683 | 1133 | concurrent_limit: Io.Limit = .unlimited, |
| 684 | | /// When a cancel request is made, blocking syscalls can be unblocked by |
| 685 | | /// issuing a signal. However, if the signal arrives after the check and before |
| 686 | | /// the syscall instruction, it is missed. |
| 687 | | /// |
| 688 | | /// This option solves the race condition by retrying the signal delivery |
| 689 | | /// until it is acknowledged, with an exponential backoff. |
| 690 | | /// |
| 691 | | /// Unfortunately, trying again until the cancellation request is acknowledged |
| 692 | | /// has been observed to be relatively slow, and usually strong cancellation |
| 693 | | /// guarantees are not needed, so this defaults to off. |
| 694 | | robust_cancel: RobustCancel = .disabled, |
| 695 | 1134 | /// Affects the following operations: |
| 696 | 1135 | /// * `processExecutablePath` on OpenBSD and Haiku. |
| 697 | 1136 | argv0: Argv0 = .{}, |
| ... | ... | @@ -727,14 +1166,9 @@ pub fn init( |
| 727 | 1166 | .old_sig_io = undefined, |
| 728 | 1167 | .old_sig_pipe = undefined, |
| 729 | 1168 | .have_signal_handler = false, |
| 730 | | .main_thread = .{ |
| 731 | | .signal_id = Thread.currentSignalId(), |
| 732 | | .current_closure = null, |
| 733 | | .cancel_protection = .unblocked, |
| 734 | | }, |
| 735 | 1169 | .argv0 = options.argv0, |
| 736 | 1170 | .environ = options.environ, |
| 737 | | .robust_cancel = options.robust_cancel, |
| 1171 | .worker_threads = .init(null), |
| 738 | 1172 | }; |
| 739 | 1173 | |
| 740 | 1174 | if (posix.Sigaction != void) { |
| ... | ... | @@ -768,14 +1202,9 @@ pub const init_single_threaded: Threaded = .{ |
| 768 | 1202 | .old_sig_io = undefined, |
| 769 | 1203 | .old_sig_pipe = undefined, |
| 770 | 1204 | .have_signal_handler = false, |
| 771 | | .main_thread = .{ |
| 772 | | .signal_id = undefined, |
| 773 | | .current_closure = null, |
| 774 | | .cancel_protection = .unblocked, |
| 775 | | }, |
| 776 | | .robust_cancel = .disabled, |
| 777 | 1205 | .argv0 = .{}, |
| 778 | 1206 | .environ = .{}, |
| 1207 | .worker_threads = .init(null), |
| 779 | 1208 | }; |
| 780 | 1209 | |
| 781 | 1210 | var global_single_threaded_instance: Threaded = .init_single_threaded; |
| ... | ... | @@ -822,22 +1251,70 @@ fn join(t: *Threaded) void { |
| 822 | 1251 | |
| 823 | 1252 | fn worker(t: *Threaded) void { |
| 824 | 1253 | var thread: Thread = .{ |
| 825 | | .signal_id = Thread.currentSignalId(), |
| 826 | | .current_closure = null, |
| 1254 | .next = undefined, |
| 1255 | .id = std.Thread.getCurrentId(), |
| 1256 | .handle = handle: { |
| 1257 | if (std.Thread.use_pthreads) break :handle std.c.pthread_self(); |
| 1258 | if (builtin.target.os.tag == .windows) break :handle undefined; // populated below |
| 1259 | }, |
| 1260 | .status = .init(.{ |
| 1261 | .cancelation = .none, |
| 1262 | .awaitable = .null, |
| 1263 | }), |
| 827 | 1264 | .cancel_protection = .unblocked, |
| 1265 | .futex_waiter = undefined, |
| 828 | 1266 | }; |
| 829 | 1267 | Thread.current = &thread; |
| 830 | 1268 | |
| 1269 | if (builtin.target.os.tag == .windows) { |
| 1270 | assert(windows.ntdll.NtOpenThread( |
| 1271 | &thread.handle, |
| 1272 | .{ |
| 1273 | .SPECIFIC = .{ |
| 1274 | .THREAD = .{ |
| 1275 | .TERMINATE = true, // for `NtCancelSynchronousIoFile` |
| 1276 | }, |
| 1277 | }, |
| 1278 | }, |
| 1279 | &.{ |
| 1280 | .Length = @sizeOf(windows.OBJECT_ATTRIBUTES), |
| 1281 | .RootDirectory = null, |
| 1282 | .ObjectName = null, |
| 1283 | .Attributes = .{}, |
| 1284 | .SecurityDescriptor = null, |
| 1285 | .SecurityQualityOfService = null, |
| 1286 | }, |
| 1287 | &windows.teb().ClientId, |
| 1288 | ) == .SUCCESS); |
| 1289 | } |
| 1290 | defer if (builtin.target.os.tag == .windows) { |
| 1291 | windows.CloseHandle(thread.handle); |
| 1292 | }; |
| 1293 | |
| 1294 | { |
| 1295 | var head = t.worker_threads.load(.monotonic); |
| 1296 | while (true) { |
| 1297 | thread.next = head; |
| 1298 | head = t.worker_threads.cmpxchgWeak( |
| 1299 | head, |
| 1300 | &thread, |
| 1301 | .release, |
| 1302 | .monotonic, |
| 1303 | ) orelse break; |
| 1304 | } |
| 1305 | } |
| 1306 | |
| 831 | 1307 | defer t.wait_group.finish(); |
| 832 | 1308 | |
| 833 | 1309 | t.mutex.lock(); |
| 834 | 1310 | defer t.mutex.unlock(); |
| 835 | 1311 | |
| 836 | 1312 | while (true) { |
| 837 | | while (t.run_queue.popFirst()) |closure_node| { |
| 1313 | while (t.run_queue.popFirst()) |runnable_node| { |
| 838 | 1314 | t.mutex.unlock(); |
| 839 | | const closure: *Closure = @fieldParentPtr("node", closure_node); |
| 840 | | closure.start(closure, t); |
| 1315 | thread.cancel_protection = .unblocked; |
| 1316 | const runnable: *Runnable = @fieldParentPtr("node", runnable_node); |
| 1317 | runnable.startFn(runnable, &thread, t); |
| 841 | 1318 | t.mutex.lock(); |
| 842 | 1319 | t.busy_count -= 1; |
| 843 | 1320 | } |
| ... | ... | @@ -1145,103 +1622,6 @@ const linux_copy_file_range_use_c = std.c.versionCheck(if (builtin.abi.isAndroid |
| 1145 | 1622 | }); |
| 1146 | 1623 | const linux_copy_file_range_sys = if (linux_copy_file_range_use_c) std.c else std.os.linux; |
| 1147 | 1624 | |
| 1148 | | /// Trailing data: |
| 1149 | | /// 1. context |
| 1150 | | /// 2. result |
| 1151 | | const AsyncClosure = struct { |
| 1152 | | closure: Closure, |
| 1153 | | func: *const fn (context: *anyopaque, result: *anyopaque) void, |
| 1154 | | event: Io.Event, |
| 1155 | | select_condition: ?*Io.Event, |
| 1156 | | context_alignment: Alignment, |
| 1157 | | result_offset: usize, |
| 1158 | | alloc_len: usize, |
| 1159 | | |
| 1160 | | const done_event: *Io.Event = @ptrFromInt(@alignOf(Io.Event)); |
| 1161 | | |
| 1162 | | fn start(closure: *Closure, t: *Threaded) void { |
| 1163 | | const ac: *AsyncClosure = @alignCast(@fieldParentPtr("closure", closure)); |
| 1164 | | const current_thread = Thread.getCurrent(t); |
| 1165 | | |
| 1166 | | current_thread.current_closure = closure; |
| 1167 | | current_thread.cancel_protection = .unblocked; |
| 1168 | | |
| 1169 | | ac.func(ac.contextPointer(), ac.resultPointer()); |
| 1170 | | |
| 1171 | | current_thread.current_closure = null; |
| 1172 | | current_thread.cancel_protection = undefined; |
| 1173 | | |
| 1174 | | if (@atomicRmw(?*Io.Event, &ac.select_condition, .Xchg, done_event, .release)) |select_event| { |
| 1175 | | assert(select_event != done_event); |
| 1176 | | select_event.set(ioBasic(t)); |
| 1177 | | } |
| 1178 | | ac.event.set(ioBasic(t)); |
| 1179 | | } |
| 1180 | | |
| 1181 | | fn resultPointer(ac: *AsyncClosure) [*]u8 { |
| 1182 | | const base: [*]u8 = @ptrCast(ac); |
| 1183 | | return base + ac.result_offset; |
| 1184 | | } |
| 1185 | | |
| 1186 | | fn contextPointer(ac: *AsyncClosure) [*]u8 { |
| 1187 | | const base: [*]u8 = @ptrCast(ac); |
| 1188 | | const context_offset = ac.context_alignment.forward(@intFromPtr(ac) + @sizeOf(AsyncClosure)) - @intFromPtr(ac); |
| 1189 | | return base + context_offset; |
| 1190 | | } |
| 1191 | | |
| 1192 | | fn init( |
| 1193 | | gpa: Allocator, |
| 1194 | | result_len: usize, |
| 1195 | | result_alignment: Alignment, |
| 1196 | | context: []const u8, |
| 1197 | | context_alignment: Alignment, |
| 1198 | | func: *const fn (context: *const anyopaque, result: *anyopaque) void, |
| 1199 | | ) Allocator.Error!*AsyncClosure { |
| 1200 | | const max_context_misalignment = context_alignment.toByteUnits() -| @alignOf(AsyncClosure); |
| 1201 | | const worst_case_context_offset = context_alignment.forward(@sizeOf(AsyncClosure) + max_context_misalignment); |
| 1202 | | const worst_case_result_offset = result_alignment.forward(worst_case_context_offset + context.len); |
| 1203 | | const alloc_len = worst_case_result_offset + result_len; |
| 1204 | | |
| 1205 | | const ac: *AsyncClosure = @ptrCast(@alignCast(try gpa.alignedAlloc(u8, .of(AsyncClosure), alloc_len))); |
| 1206 | | errdefer comptime unreachable; |
| 1207 | | |
| 1208 | | const actual_context_addr = context_alignment.forward(@intFromPtr(ac) + @sizeOf(AsyncClosure)); |
| 1209 | | const actual_result_addr = result_alignment.forward(actual_context_addr + context.len); |
| 1210 | | const actual_result_offset = actual_result_addr - @intFromPtr(ac); |
| 1211 | | ac.* = .{ |
| 1212 | | .closure = .{ |
| 1213 | | .cancel_status = .none, |
| 1214 | | .start = start, |
| 1215 | | }, |
| 1216 | | .func = func, |
| 1217 | | .context_alignment = context_alignment, |
| 1218 | | .result_offset = actual_result_offset, |
| 1219 | | .alloc_len = alloc_len, |
| 1220 | | .event = .unset, |
| 1221 | | .select_condition = null, |
| 1222 | | }; |
| 1223 | | @memcpy(ac.contextPointer()[0..context.len], context); |
| 1224 | | return ac; |
| 1225 | | } |
| 1226 | | |
| 1227 | | fn waitAndDeinit(ac: *AsyncClosure, t: *Threaded, result: []u8) void { |
| 1228 | | ac.event.wait(ioBasic(t)) catch |err| switch (err) { |
| 1229 | | error.Canceled => { |
| 1230 | | ac.closure.requestCancel(t); |
| 1231 | | ac.event.waitUncancelable(ioBasic(t)); |
| 1232 | | recancel(t); |
| 1233 | | }, |
| 1234 | | }; |
| 1235 | | @memcpy(result, ac.resultPointer()[0..result.len]); |
| 1236 | | ac.deinit(t.allocator); |
| 1237 | | } |
| 1238 | | |
| 1239 | | fn deinit(ac: *AsyncClosure, gpa: Allocator) void { |
| 1240 | | const base: [*]align(@alignOf(AsyncClosure)) u8 = @ptrCast(ac); |
| 1241 | | gpa.free(base[0..ac.alloc_len]); |
| 1242 | | } |
| 1243 | | }; |
| 1244 | | |
| 1245 | 1625 | fn async( |
| 1246 | 1626 | userdata: ?*anyopaque, |
| 1247 | 1627 | result: []u8, |
| ... | ... | @@ -1255,10 +1635,13 @@ fn async( |
| 1255 | 1635 | start(context.ptr, result.ptr); |
| 1256 | 1636 | return null; |
| 1257 | 1637 | } |
| 1638 | |
| 1258 | 1639 | const gpa = t.allocator; |
| 1259 | | const ac = AsyncClosure.init(gpa, result.len, result_alignment, context, context_alignment, start) catch { |
| 1260 | | start(context.ptr, result.ptr); |
| 1261 | | return null; |
| 1640 | const future = Future.create(gpa, result.len, result_alignment, context, context_alignment, start) catch |err| switch (err) { |
| 1641 | error.OutOfMemory => { |
| 1642 | start(context.ptr, result.ptr); |
| 1643 | return null; |
| 1644 | }, |
| 1262 | 1645 | }; |
| 1263 | 1646 | |
| 1264 | 1647 | t.mutex.lock(); |
| ... | ... | @@ -1267,7 +1650,7 @@ fn async( |
| 1267 | 1650 | |
| 1268 | 1651 | if (busy_count >= @intFromEnum(t.async_limit)) { |
| 1269 | 1652 | t.mutex.unlock(); |
| 1270 | | ac.deinit(gpa); |
| 1653 | future.destroy(gpa); |
| 1271 | 1654 | start(context.ptr, result.ptr); |
| 1272 | 1655 | return null; |
| 1273 | 1656 | } |
| ... | ... | @@ -1281,17 +1664,18 @@ fn async( |
| 1281 | 1664 | t.wait_group.finish(); |
| 1282 | 1665 | t.busy_count = busy_count; |
| 1283 | 1666 | t.mutex.unlock(); |
| 1284 | | ac.deinit(gpa); |
| 1667 | future.destroy(gpa); |
| 1285 | 1668 | start(context.ptr, result.ptr); |
| 1286 | 1669 | return null; |
| 1287 | 1670 | }; |
| 1288 | 1671 | thread.detach(); |
| 1289 | 1672 | } |
| 1290 | 1673 | |
| 1291 | | t.run_queue.prepend(&ac.closure.node); |
| 1674 | t.run_queue.prepend(&future.runnable.node); |
| 1675 | |
| 1292 | 1676 | t.mutex.unlock(); |
| 1293 | 1677 | t.cond.signal(); |
| 1294 | | return @ptrCast(ac); |
| 1678 | return @ptrCast(future); |
| 1295 | 1679 | } |
| 1296 | 1680 | |
| 1297 | 1681 | fn concurrent( |
| ... | ... | @@ -1307,9 +1691,10 @@ fn concurrent( |
| 1307 | 1691 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1308 | 1692 | |
| 1309 | 1693 | const gpa = t.allocator; |
| 1310 | | const ac = AsyncClosure.init(gpa, result_len, result_alignment, context, context_alignment, start) catch |
| 1311 | | return error.ConcurrencyUnavailable; |
| 1312 | | errdefer ac.deinit(gpa); |
| 1694 | const future = Future.create(gpa, result_len, result_alignment, context, context_alignment, start) catch |err| switch (err) { |
| 1695 | error.OutOfMemory => return error.ConcurrencyUnavailable, |
| 1696 | }; |
| 1697 | errdefer future.destroy(gpa); |
| 1313 | 1698 | |
| 1314 | 1699 | t.mutex.lock(); |
| 1315 | 1700 | defer t.mutex.unlock(); |
| ... | ... | @@ -1329,110 +1714,32 @@ fn concurrent( |
| 1329 | 1714 | |
| 1330 | 1715 | const thread = std.Thread.spawn(.{ .stack_size = t.stack_size }, worker, .{t}) catch |
| 1331 | 1716 | return error.ConcurrencyUnavailable; |
| 1717 | |
| 1332 | 1718 | thread.detach(); |
| 1333 | 1719 | } |
| 1334 | 1720 | |
| 1335 | | t.run_queue.prepend(&ac.closure.node); |
| 1721 | t.run_queue.prepend(&future.runnable.node); |
| 1722 | |
| 1336 | 1723 | t.cond.signal(); |
| 1337 | | return @ptrCast(ac); |
| 1724 | return @ptrCast(future); |
| 1338 | 1725 | } |
| 1339 | 1726 | |
| 1340 | | const GroupClosure = struct { |
| 1341 | | closure: Closure, |
| 1342 | | group: *Io.Group, |
| 1343 | | /// Points to sibling `GroupClosure`. Used for walking the group to cancel all. |
| 1344 | | node: std.SinglyLinkedList.Node, |
| 1345 | | func: *const fn (*Io.Group, context: *anyopaque) Io.Cancelable!void, |
| 1346 | | context_alignment: Alignment, |
| 1347 | | alloc_len: usize, |
| 1348 | | |
| 1349 | | fn start(closure: *Closure, t: *Threaded) void { |
| 1350 | | const gc: *GroupClosure = @alignCast(@fieldParentPtr("closure", closure)); |
| 1351 | | const current_thread = Thread.getCurrent(t); |
| 1352 | | const group = gc.group; |
| 1353 | | const group_state: *std.atomic.Value(usize) = @ptrCast(&group.state); |
| 1354 | | const event: *Io.Event = @ptrCast(&group.context); |
| 1355 | | current_thread.current_closure = closure; |
| 1356 | | current_thread.cancel_protection = .unblocked; |
| 1357 | | |
| 1358 | | assertResult(closure, gc.func(group, gc.contextPointer())); |
| 1359 | | |
| 1360 | | current_thread.current_closure = null; |
| 1361 | | current_thread.cancel_protection = undefined; |
| 1362 | | |
| 1363 | | const prev_state = group_state.fetchSub(sync_one_pending, .acq_rel); |
| 1364 | | assert((prev_state / sync_one_pending) > 0); |
| 1365 | | if (prev_state == (sync_one_pending | sync_is_waiting)) event.set(ioBasic(t)); |
| 1366 | | } |
| 1367 | | |
| 1368 | | fn assertResult(closure: *Closure, result: Io.Cancelable!void) void { |
| 1369 | | if (result) |_| switch (closure.cancel_status.unpack()) { |
| 1370 | | .none, .requested => {}, |
| 1371 | | .acknowledged => unreachable, // task illegally swallowed error.Canceled |
| 1372 | | .signal_id => unreachable, |
| 1373 | | } else |err| switch (err) { |
| 1374 | | error.Canceled => assert(closure.cancel_status == .acknowledged), |
| 1375 | | } |
| 1376 | | } |
| 1377 | | |
| 1378 | | fn contextPointer(gc: *GroupClosure) [*]u8 { |
| 1379 | | const base: [*]u8 = @ptrCast(gc); |
| 1380 | | const context_offset = gc.context_alignment.forward(@intFromPtr(gc) + @sizeOf(GroupClosure)) - @intFromPtr(gc); |
| 1381 | | return base + context_offset; |
| 1382 | | } |
| 1383 | | |
| 1384 | | /// Does not initialize the `node` field. |
| 1385 | | fn init( |
| 1386 | | gpa: Allocator, |
| 1387 | | group: *Io.Group, |
| 1388 | | context: []const u8, |
| 1389 | | context_alignment: Alignment, |
| 1390 | | func: *const fn (*Io.Group, context: *const anyopaque) Io.Cancelable!void, |
| 1391 | | ) Allocator.Error!*GroupClosure { |
| 1392 | | const max_context_misalignment = context_alignment.toByteUnits() -| @alignOf(GroupClosure); |
| 1393 | | const worst_case_context_offset = context_alignment.forward(@sizeOf(GroupClosure) + max_context_misalignment); |
| 1394 | | const alloc_len = worst_case_context_offset + context.len; |
| 1395 | | |
| 1396 | | const gc: *GroupClosure = @ptrCast(@alignCast(try gpa.alignedAlloc(u8, .of(GroupClosure), alloc_len))); |
| 1397 | | errdefer comptime unreachable; |
| 1398 | | |
| 1399 | | gc.* = .{ |
| 1400 | | .closure = .{ |
| 1401 | | .cancel_status = .none, |
| 1402 | | .start = start, |
| 1403 | | }, |
| 1404 | | .group = group, |
| 1405 | | .node = undefined, |
| 1406 | | .func = func, |
| 1407 | | .context_alignment = context_alignment, |
| 1408 | | .alloc_len = alloc_len, |
| 1409 | | }; |
| 1410 | | @memcpy(gc.contextPointer()[0..context.len], context); |
| 1411 | | return gc; |
| 1412 | | } |
| 1413 | | |
| 1414 | | fn deinit(gc: *GroupClosure, gpa: Allocator) void { |
| 1415 | | const base: [*]align(@alignOf(GroupClosure)) u8 = @ptrCast(gc); |
| 1416 | | gpa.free(base[0..gc.alloc_len]); |
| 1417 | | } |
| 1418 | | |
| 1419 | | const sync_is_waiting: usize = 1 << 0; |
| 1420 | | const sync_one_pending: usize = 1 << 1; |
| 1421 | | }; |
| 1422 | | |
| 1423 | 1727 | fn groupAsync( |
| 1424 | 1728 | userdata: ?*anyopaque, |
| 1425 | | group: *Io.Group, |
| 1729 | type_erased: *Io.Group, |
| 1426 | 1730 | context: []const u8, |
| 1427 | 1731 | context_alignment: Alignment, |
| 1428 | | start: *const fn (*Io.Group, context: *const anyopaque) Io.Cancelable!void, |
| 1732 | start: *const fn (context: *const anyopaque) Io.Cancelable!void, |
| 1429 | 1733 | ) void { |
| 1430 | 1734 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1431 | | if (builtin.single_threaded) return start(group, context.ptr) catch unreachable; |
| 1735 | const g: Group = .{ .ptr = type_erased }; |
| 1736 | |
| 1737 | if (builtin.single_threaded) return groupAsyncEager(start, context.ptr); |
| 1432 | 1738 | |
| 1433 | 1739 | const gpa = t.allocator; |
| 1434 | | const gc = GroupClosure.init(gpa, group, context, context_alignment, start) catch |
| 1435 | | return t.assertGroupResult(start(group, context.ptr)); |
| 1740 | const task = Group.Task.create(gpa, g, context, context_alignment, start) catch |err| switch (err) { |
| 1741 | error.OutOfMemory => return groupAsyncEager(start, context.ptr), |
| 1742 | }; |
| 1436 | 1743 | |
| 1437 | 1744 | t.mutex.lock(); |
| 1438 | 1745 | |
| ... | ... | @@ -1440,8 +1747,8 @@ fn groupAsync( |
| 1440 | 1747 | |
| 1441 | 1748 | if (busy_count >= @intFromEnum(t.async_limit)) { |
| 1442 | 1749 | t.mutex.unlock(); |
| 1443 | | gc.deinit(gpa); |
| 1444 | | return t.assertGroupResult(start(group, context.ptr)); |
| 1750 | task.destroy(gpa); |
| 1751 | return groupAsyncEager(start, context.ptr); |
| 1445 | 1752 | } |
| 1446 | 1753 | |
| 1447 | 1754 | t.busy_count = busy_count + 1; |
| ... | ... | @@ -1453,48 +1760,84 @@ fn groupAsync( |
| 1453 | 1760 | t.wait_group.finish(); |
| 1454 | 1761 | t.busy_count = busy_count; |
| 1455 | 1762 | t.mutex.unlock(); |
| 1456 | | gc.deinit(gpa); |
| 1457 | | return t.assertGroupResult(start(group, context.ptr)); |
| 1763 | task.destroy(gpa); |
| 1764 | return groupAsyncEager(start, context.ptr); |
| 1458 | 1765 | }; |
| 1459 | 1766 | thread.detach(); |
| 1460 | 1767 | } |
| 1461 | 1768 | |
| 1462 | | // Append to the group linked list inside the mutex to make `Io.Group.async` thread-safe. |
| 1463 | | gc.node = .{ .next = @ptrCast(@alignCast(group.token.load(.monotonic))) }; |
| 1464 | | group.token.store(&gc.node, .monotonic); |
| 1465 | | |
| 1466 | | t.run_queue.prepend(&gc.closure.node); |
| 1467 | | |
| 1468 | | // This needs to be done before unlocking the mutex to avoid a race with |
| 1469 | | // the associated task finishing. |
| 1470 | | const group_state: *std.atomic.Value(usize) = @ptrCast(&group.state); |
| 1471 | | const prev_state = group_state.fetchAdd(GroupClosure.sync_one_pending, .monotonic); |
| 1472 | | assert((prev_state / GroupClosure.sync_one_pending) < (std.math.maxInt(usize) / GroupClosure.sync_one_pending)); |
| 1769 | // TODO: if this logic is changed to be lock-free, this `fetchAdd` must be released by the queue |
| 1770 | // prepend so that the task doesn't finish without observing this and try to decrement the count |
| 1771 | // below zero. |
| 1772 | _ = g.status().fetchAdd(.{ |
| 1773 | .num_running = 1, |
| 1774 | .have_awaiter = false, |
| 1775 | .canceled = false, |
| 1776 | }, .monotonic); |
| 1777 | t.run_queue.prepend(&task.runnable.node); |
| 1473 | 1778 | |
| 1474 | 1779 | t.mutex.unlock(); |
| 1475 | 1780 | t.cond.signal(); |
| 1476 | 1781 | } |
| 1782 | fn groupAsyncEager( |
| 1783 | start: *const fn (context: *const anyopaque) Io.Cancelable!void, |
| 1784 | context: *const anyopaque, |
| 1785 | ) void { |
| 1786 | const pre_acknowledged = if (Thread.current) |thread| ack: { |
| 1787 | break :ack switch (thread.status.load(.monotonic).cancelation) { |
| 1788 | .none, .canceling => false, |
| 1789 | .canceled => true, |
| 1790 | .parked => unreachable, |
| 1791 | .blocked => unreachable, |
| 1792 | .blocked_windows_dns => unreachable, |
| 1793 | .blocked_canceling => unreachable, |
| 1794 | }; |
| 1795 | } else false; |
| 1796 | const result = start(context); |
| 1797 | const post_acknowledged = if (Thread.current) |thread| ack: { |
| 1798 | break :ack switch (thread.status.load(.monotonic).cancelation) { |
| 1799 | .none, .canceling => false, |
| 1800 | .canceled => true, |
| 1801 | .parked => unreachable, |
| 1802 | .blocked => unreachable, |
| 1803 | .blocked_windows_dns => unreachable, |
| 1804 | .blocked_canceling => unreachable, |
| 1805 | }; |
| 1806 | } else false; |
| 1477 | 1807 | |
| 1478 | | fn assertGroupResult(t: *Threaded, result: Io.Cancelable!void) void { |
| 1479 | | const current_thread: *Thread = .getCurrent(t); |
| 1480 | | const current_closure = current_thread.current_closure orelse return; |
| 1481 | | GroupClosure.assertResult(current_closure, result); |
| 1808 | if (result) { |
| 1809 | if (pre_acknowledged) { |
| 1810 | assert(post_acknowledged); // group task called `recancel` but was not canceled |
| 1811 | } else { |
| 1812 | assert(!post_acknowledged); // group task acknowledged cancelation but did not return `error.Canceled` |
| 1813 | } |
| 1814 | } else |err| switch (err) { |
| 1815 | // Don't swallow the cancelation: make it visible to the `Group.async` caller. |
| 1816 | error.Canceled => { |
| 1817 | assert(!pre_acknowledged); // group task called `recancel` but was not canceled |
| 1818 | assert(post_acknowledged); // group task returned `error.Canceled` but was never canceled |
| 1819 | recancelInner(); |
| 1820 | }, |
| 1821 | } |
| 1482 | 1822 | } |
| 1483 | 1823 | |
| 1484 | 1824 | fn groupConcurrent( |
| 1485 | 1825 | userdata: ?*anyopaque, |
| 1486 | | group: *Io.Group, |
| 1826 | type_erased: *Io.Group, |
| 1487 | 1827 | context: []const u8, |
| 1488 | 1828 | context_alignment: Alignment, |
| 1489 | | start: *const fn (*Io.Group, context: *const anyopaque) Io.Cancelable!void, |
| 1829 | start: *const fn (context: *const anyopaque) Io.Cancelable!void, |
| 1490 | 1830 | ) Io.ConcurrentError!void { |
| 1491 | 1831 | if (builtin.single_threaded) return error.ConcurrencyUnavailable; |
| 1492 | 1832 | |
| 1493 | 1833 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1834 | const g: Group = .{ .ptr = type_erased }; |
| 1494 | 1835 | |
| 1495 | 1836 | const gpa = t.allocator; |
| 1496 | | const gc = GroupClosure.init(gpa, group, context, context_alignment, start) catch |
| 1497 | | return error.ConcurrencyUnavailable; |
| 1837 | const task = Group.Task.create(gpa, g, context, context_alignment, start) catch |err| switch (err) { |
| 1838 | error.OutOfMemory => return error.ConcurrencyUnavailable, |
| 1839 | }; |
| 1840 | errdefer task.destroy(gpa); |
| 1498 | 1841 | |
| 1499 | 1842 | t.mutex.lock(); |
| 1500 | 1843 | defer t.mutex.unlock(); |
| ... | ... | @@ -1514,115 +1857,144 @@ fn groupConcurrent( |
| 1514 | 1857 | |
| 1515 | 1858 | const thread = std.Thread.spawn(.{ .stack_size = t.stack_size }, worker, .{t}) catch |
| 1516 | 1859 | return error.ConcurrencyUnavailable; |
| 1860 | |
| 1517 | 1861 | thread.detach(); |
| 1518 | 1862 | } |
| 1519 | 1863 | |
| 1520 | | // Append to the group linked list inside the mutex to make `Io.Group.concurrent` thread-safe. |
| 1521 | | gc.node = .{ .next = @ptrCast(@alignCast(group.token.load(.monotonic))) }; |
| 1522 | | group.token.store(&gc.node, .monotonic); |
| 1523 | | |
| 1524 | | t.run_queue.prepend(&gc.closure.node); |
| 1525 | | |
| 1526 | | // This needs to be done before unlocking the mutex to avoid a race with |
| 1527 | | // the associated task finishing. |
| 1528 | | const group_state: *std.atomic.Value(usize) = @ptrCast(&group.state); |
| 1529 | | const prev_state = group_state.fetchAdd(GroupClosure.sync_one_pending, .monotonic); |
| 1530 | | assert((prev_state / GroupClosure.sync_one_pending) < (std.math.maxInt(usize) / GroupClosure.sync_one_pending)); |
| 1864 | // TODO: if this logic is changed to be lock-free, this `fetchAdd` must be released by the queue |
| 1865 | // prepend so that the task doesn't finish without observing this and try to decrement the count |
| 1866 | // below zero. |
| 1867 | _ = g.status().fetchAdd(.{ |
| 1868 | .num_running = 1, |
| 1869 | .have_awaiter = false, |
| 1870 | .canceled = false, |
| 1871 | }, .monotonic); |
| 1872 | t.run_queue.prepend(&task.runnable.node); |
| 1531 | 1873 | |
| 1532 | 1874 | t.cond.signal(); |
| 1533 | 1875 | } |
| 1534 | 1876 | |
| 1535 | | fn groupAwait(userdata: ?*anyopaque, group: *Io.Group, initial_token: *anyopaque) Io.Cancelable!void { |
| 1877 | fn groupAwait(userdata: ?*anyopaque, type_erased: *Io.Group, initial_token: *anyopaque) Io.Cancelable!void { |
| 1878 | _ = initial_token; // we need to load `token` *after* the group finishes |
| 1536 | 1879 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1537 | | const gpa = t.allocator; |
| 1880 | const g: Group = .{ .ptr = type_erased }; |
| 1538 | 1881 | |
| 1539 | | _ = initial_token; // we need to load `token` *after* the group finishes |
| 1882 | var num_completed: std.atomic.Value(u32) = .init(0); |
| 1883 | g.awaiter().* = &num_completed; |
| 1540 | 1884 | |
| 1541 | | if (builtin.single_threaded) unreachable; // we never set `group.token` to non-`null` |
| 1885 | const pre_await_status = g.status().fetchOr(.{ |
| 1886 | .num_running = 0, |
| 1887 | .have_awaiter = true, |
| 1888 | .canceled = false, |
| 1889 | }, .acq_rel); // acquire results if complete; release `g.awaiter()` |
| 1542 | 1890 | |
| 1543 | | const group_state: *std.atomic.Value(usize) = @ptrCast(&group.state); |
| 1544 | | const event: *Io.Event = @ptrCast(&group.context); |
| 1545 | | const prev_state = group_state.fetchAdd(GroupClosure.sync_is_waiting, .acquire); |
| 1546 | | assert(prev_state & GroupClosure.sync_is_waiting == 0); |
| 1547 | | { |
| 1548 | | errdefer _ = group_state.fetchSub(GroupClosure.sync_is_waiting, .monotonic); |
| 1549 | | // This event.wait can return error.Canceled, in which case this logic does |
| 1550 | | // *not* propagate cancel requests to each group member. Instead, the user |
| 1551 | | // code will likely do this with a defered call to groupCancel, or, |
| 1552 | | // intentionally not do this. |
| 1553 | | if ((prev_state / GroupClosure.sync_one_pending) > 0) try event.wait(ioBasic(t)); |
| 1891 | assert(!pre_await_status.have_awaiter); |
| 1892 | assert(!pre_await_status.canceled); |
| 1893 | if (pre_await_status.num_running == 0) { |
| 1894 | // Already done. Since the group is finished, it's illegal to spawn more tasks in it |
| 1895 | // until we return, so we can access `g.status()` non-atomically. |
| 1896 | g.status().raw.have_awaiter = false; |
| 1897 | return; |
| 1554 | 1898 | } |
| 1555 | 1899 | |
| 1556 | | // Since the group has now finished, it's illegal to add more tasks to it until we return. It's |
| 1557 | | // also illegal for us to race with another `await` or `cancel`. Therefore, we must be the only |
| 1558 | | // thread who can access `group` right now. |
| 1559 | | var it: ?*std.SinglyLinkedList.Node = @ptrCast(@alignCast(group.token.raw)); |
| 1560 | | group.token.raw = null; |
| 1561 | | while (it) |node| { |
| 1562 | | it = node.next; // update `it` now, because `deinit` will invalidate `node` |
| 1563 | | const gc: *GroupClosure = @fieldParentPtr("node", node); |
| 1564 | | gc.deinit(gpa); |
| 1900 | while (Thread.futexWait(&num_completed.raw, 0, null)) { |
| 1901 | switch (num_completed.load(.acquire)) { // acquire task results |
| 1902 | 0 => continue, |
| 1903 | 1 => break, |
| 1904 | else => unreachable, // group was reused before `await` returned |
| 1905 | } |
| 1906 | } else |err| switch (err) { |
| 1907 | error.Canceled => { |
| 1908 | const pre_cancel_status = g.status().fetchOr(.{ |
| 1909 | .num_running = 0, |
| 1910 | .have_awaiter = false, |
| 1911 | .canceled = true, |
| 1912 | }, .acq_rel); // acquire results if complete; release `g.awaiter()` |
| 1913 | assert(pre_cancel_status.have_awaiter); |
| 1914 | assert(!pre_cancel_status.canceled); |
| 1915 | |
| 1916 | // Even if `pre_cancel_status.num_running == 0`, we still need to wait for the signal, |
| 1917 | // because in that case the last member of the group is already trying to modify it. |
| 1918 | // However, if we know everything is done, we *can* skip signaling blocked threads. |
| 1919 | const skip_signals = pre_cancel_status.num_running == 0; |
| 1920 | g.waitForCancelWithSignaling(t, &num_completed, skip_signals); |
| 1921 | |
| 1922 | // The group is finished, so it's illegal to spawn more tasks in it until we return, so |
| 1923 | // we can access `g.status()` non-atomically. |
| 1924 | g.status().raw.canceled = false; |
| 1925 | g.status().raw.have_awaiter = false; |
| 1926 | return error.Canceled; |
| 1927 | }, |
| 1565 | 1928 | } |
| 1929 | |
| 1930 | // The group is finished, so it's illegal to spawn more tasks in it until we return, so |
| 1931 | // we can access `g.status()` non-atomically. |
| 1932 | g.status().raw.have_awaiter = false; |
| 1566 | 1933 | } |
| 1567 | 1934 | |
| 1568 | | fn groupCancel(userdata: ?*anyopaque, group: *Io.Group, initial_token: *anyopaque) void { |
| 1935 | fn groupCancel(userdata: ?*anyopaque, type_erased: *Io.Group, initial_token: *anyopaque) void { |
| 1936 | _ = initial_token; |
| 1569 | 1937 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1570 | | const gpa = t.allocator; |
| 1938 | const g: Group = .{ .ptr = type_erased }; |
| 1571 | 1939 | |
| 1572 | | _ = initial_token; // we need to load `token` *after* the group finishes |
| 1940 | var num_completed: std.atomic.Value(u32) = .init(0); |
| 1941 | g.awaiter().* = &num_completed; |
| 1573 | 1942 | |
| 1574 | | if (builtin.single_threaded) unreachable; // we never set `group.token` to non-`null` |
| 1943 | const pre_cancel_status = g.status().fetchOr(.{ |
| 1944 | .num_running = 0, |
| 1945 | .have_awaiter = true, |
| 1946 | .canceled = true, |
| 1947 | }, .acq_rel); // acquire results if complete; release `g.awaiter()` |
| 1575 | 1948 | |
| 1576 | | { |
| 1577 | | var it: ?*std.SinglyLinkedList.Node = @ptrCast(@alignCast(group.token.load(.monotonic))); |
| 1578 | | while (it) |node| : (it = node.next) { |
| 1579 | | const gc: *GroupClosure = @fieldParentPtr("node", node); |
| 1580 | | gc.closure.requestCancel(t); |
| 1581 | | } |
| 1949 | assert(!pre_cancel_status.have_awaiter); |
| 1950 | assert(!pre_cancel_status.canceled); |
| 1951 | if (pre_cancel_status.num_running == 0) { |
| 1952 | // Already done. Since the group is finished, it's illegal to spawn more tasks in it |
| 1953 | // until we return, so we can access `g.status()` non-atomically. |
| 1954 | g.status().raw.have_awaiter = false; |
| 1955 | g.status().raw.canceled = false; |
| 1956 | return; |
| 1582 | 1957 | } |
| 1583 | 1958 | |
| 1584 | | const group_state: *std.atomic.Value(usize) = @ptrCast(&group.state); |
| 1585 | | const event: *Io.Event = @ptrCast(&group.context); |
| 1586 | | const prev_state = group_state.fetchAdd(GroupClosure.sync_is_waiting, .acquire); |
| 1587 | | assert(prev_state & GroupClosure.sync_is_waiting == 0); |
| 1588 | | if ((prev_state / GroupClosure.sync_one_pending) > 0) event.waitUncancelable(ioBasic(t)); |
| 1959 | g.waitForCancelWithSignaling(t, &num_completed, false); |
| 1589 | 1960 | |
| 1590 | | // Since the group has now finished, it's illegal to add more tasks to it until we return. It's |
| 1591 | | // also illegal for us to race with another `await` or `cancel`. Therefore, we must be the only |
| 1592 | | // thread who can access `group` right now. |
| 1593 | | var it: ?*std.SinglyLinkedList.Node = @ptrCast(@alignCast(group.token.raw)); |
| 1594 | | group.token.raw = null; |
| 1595 | | while (it) |node| { |
| 1596 | | it = node.next; // update `it` now, because `deinit` will invalidate `node` |
| 1597 | | const gc: *GroupClosure = @fieldParentPtr("node", node); |
| 1598 | | gc.deinit(gpa); |
| 1599 | | } |
| 1961 | g.status().raw = .{ .num_running = 0, .have_awaiter = false, .canceled = false }; |
| 1600 | 1962 | } |
| 1601 | 1963 | |
| 1602 | 1964 | fn recancel(userdata: ?*anyopaque) void { |
| 1603 | 1965 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1604 | | const current_thread: *Thread = .getCurrent(t); |
| 1605 | | const cancel_status = ¤t_thread.current_closure.?.cancel_status; |
| 1606 | | switch (@atomicLoad(CancelStatus, cancel_status, .monotonic)) { |
| 1607 | | .none => unreachable, // called `recancel` when not canceled |
| 1608 | | .requested => unreachable, // called `recancel` when cancelation was already outstanding |
| 1609 | | .acknowledged => {}, |
| 1610 | | _ => unreachable, // invalid state: not in a syscall |
| 1966 | _ = t; |
| 1967 | recancelInner(); |
| 1968 | } |
| 1969 | fn recancelInner() void { |
| 1970 | const thread = Thread.current.?; // called `recancel` but was not canceled |
| 1971 | switch (thread.status.fetchXor(.{ |
| 1972 | .cancelation = @enumFromInt(0b001), |
| 1973 | .awaitable = .null, |
| 1974 | }, .monotonic).cancelation) { |
| 1975 | .canceled => {}, |
| 1976 | .none => unreachable, // called `recancel` but was not canceled |
| 1977 | .canceling => unreachable, // called `recancel` but cancelation was already pending |
| 1978 | .parked => unreachable, |
| 1979 | .blocked => unreachable, |
| 1980 | .blocked_windows_dns => unreachable, |
| 1981 | .blocked_canceling => unreachable, |
| 1611 | 1982 | } |
| 1612 | | @atomicStore(CancelStatus, cancel_status, .requested, .monotonic); |
| 1613 | 1983 | } |
| 1614 | 1984 | |
| 1615 | 1985 | fn swapCancelProtection(userdata: ?*anyopaque, new: Io.CancelProtection) Io.CancelProtection { |
| 1616 | 1986 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1617 | | const current_thread: *Thread = .getCurrent(t); |
| 1618 | | const old = current_thread.cancel_protection; |
| 1619 | | current_thread.cancel_protection = new; |
| 1987 | _ = t; |
| 1988 | const thread = Thread.current orelse return .unblocked; |
| 1989 | const old = thread.cancel_protection; |
| 1990 | thread.cancel_protection = new; |
| 1620 | 1991 | return old; |
| 1621 | 1992 | } |
| 1622 | 1993 | |
| 1623 | 1994 | fn checkCancel(userdata: ?*anyopaque) Io.Cancelable!void { |
| 1624 | 1995 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1625 | | return Thread.getCurrent(t).checkCancel(); |
| 1996 | _ = t; |
| 1997 | return Thread.checkCancel(); |
| 1626 | 1998 | } |
| 1627 | 1999 | |
| 1628 | 2000 | fn await( |
| ... | ... | @@ -1633,8 +2005,59 @@ fn await( |
| 1633 | 2005 | ) void { |
| 1634 | 2006 | _ = result_alignment; |
| 1635 | 2007 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1636 | | const closure: *AsyncClosure = @ptrCast(@alignCast(any_future)); |
| 1637 | | closure.waitAndDeinit(t, result); |
| 2008 | const future: *Future = @ptrCast(@alignCast(any_future)); |
| 2009 | |
| 2010 | var num_completed: std.atomic.Value(u32) = .init(0); |
| 2011 | future.awaiter = &num_completed; |
| 2012 | |
| 2013 | const pre_await_status = future.status.fetchOr(.{ |
| 2014 | .tag = .pending_awaited, |
| 2015 | .thread = .null, |
| 2016 | }, .acq_rel); // acquire results if complete; release `future.awaiter` |
| 2017 | switch (pre_await_status.tag) { |
| 2018 | .pending => while (Thread.futexWait(&num_completed.raw, 0, null)) { |
| 2019 | switch (num_completed.load(.acquire)) { // acquire task results |
| 2020 | 0 => continue, |
| 2021 | 1 => break, |
| 2022 | else => unreachable, // group was reused before `await` returned |
| 2023 | } |
| 2024 | } else |err| switch (err) { |
| 2025 | error.Canceled => { |
| 2026 | const pre_cancel_status = future.status.fetchOr(.{ |
| 2027 | .tag = .pending_canceled, |
| 2028 | .thread = .null, |
| 2029 | }, .acq_rel); // acquire results if complete; release `future.awaiter` |
| 2030 | switch (pre_cancel_status.tag) { |
| 2031 | .pending => unreachable, // invalid state: we already awaited |
| 2032 | .pending_awaited => { |
| 2033 | const working_thread = pre_cancel_status.thread.unpack(); |
| 2034 | future.waitForCancelWithSignaling(t, &num_completed, @alignCast(working_thread)); |
| 2035 | }, |
| 2036 | .pending_canceled => unreachable, // `await` raced with `cancel` |
| 2037 | .done => { |
| 2038 | // The task just finished, but we still need to wait for the signal, because the |
| 2039 | // task thread already figured out that they need to update `future.awaiter`. |
| 2040 | future.waitForCancelWithSignaling(t, &num_completed, null); |
| 2041 | }, |
| 2042 | } |
| 2043 | // If the future did not acknowledge the cancelation, we need to mark it outstanding |
| 2044 | // for us. Because `future.status.tag == .done`, the information about whether there |
| 2045 | // was an acknowledged cancelation is encoded in `future.status.thread`. |
| 2046 | const final_status = future.status.load(.monotonic); |
| 2047 | assert(final_status.tag == .done); |
| 2048 | switch (final_status.thread) { |
| 2049 | .null => recancelInner(), // cancelation was not acknowledged, so it's ours |
| 2050 | .all_ones => {}, // cancelation was acknowledged, so it was this task's job to propagate it |
| 2051 | _ => unreachable, |
| 2052 | } |
| 2053 | }, |
| 2054 | }, |
| 2055 | .pending_awaited => unreachable, // `await` raced with `await` |
| 2056 | .pending_canceled => unreachable, // `await` raced with `cancel` |
| 2057 | .done => {}, |
| 2058 | } |
| 2059 | @memcpy(result, future.resultPointer()); |
| 2060 | future.destroy(t.allocator); |
| 1638 | 2061 | } |
| 1639 | 2062 | |
| 1640 | 2063 | fn cancel( |
| ... | ... | @@ -1645,28 +2068,44 @@ fn cancel( |
| 1645 | 2068 | ) void { |
| 1646 | 2069 | _ = result_alignment; |
| 1647 | 2070 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1648 | | const ac: *AsyncClosure = @ptrCast(@alignCast(any_future)); |
| 1649 | | ac.closure.requestCancel(t); |
| 1650 | | ac.waitAndDeinit(t, result); |
| 2071 | const future: *Future = @ptrCast(@alignCast(any_future)); |
| 2072 | |
| 2073 | var num_completed: std.atomic.Value(u32) = .init(0); |
| 2074 | future.awaiter = &num_completed; |
| 2075 | |
| 2076 | const pre_cancel_status = future.status.fetchOr(.{ |
| 2077 | .tag = .pending_canceled, |
| 2078 | .thread = .null, |
| 2079 | }, .acq_rel); // acquire results if complete; release `future.awaiter` |
| 2080 | switch (pre_cancel_status.tag) { |
| 2081 | .pending => { |
| 2082 | const working_thread = pre_cancel_status.thread.unpack(); |
| 2083 | future.waitForCancelWithSignaling(t, &num_completed, @alignCast(working_thread)); |
| 2084 | }, |
| 2085 | .pending_awaited => unreachable, // `await` raced with `await` |
| 2086 | .pending_canceled => unreachable, // `await` raced with `cancel` |
| 2087 | .done => {}, |
| 2088 | } |
| 2089 | @memcpy(result, future.resultPointer()); |
| 2090 | future.destroy(t.allocator); |
| 1651 | 2091 | } |
| 1652 | 2092 | |
| 1653 | 2093 | fn futexWait(userdata: ?*anyopaque, ptr: *const u32, expected: u32, timeout: Io.Timeout) Io.Cancelable!void { |
| 1654 | 2094 | if (builtin.single_threaded) unreachable; // Deadlock. |
| 1655 | 2095 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1656 | | const current_thread = Thread.getCurrent(t); |
| 1657 | 2096 | const t_io = ioBasic(t); |
| 1658 | 2097 | const timeout_ns: ?u64 = ns: { |
| 1659 | 2098 | const d = (timeout.toDurationFromNow(t_io) catch break :ns 10) orelse break :ns null; |
| 1660 | 2099 | break :ns std.math.lossyCast(u64, d.raw.toNanoseconds()); |
| 1661 | 2100 | }; |
| 1662 | | return Thread.futexWaitTimed(current_thread, ptr, expected, timeout_ns); |
| 2101 | return Thread.futexWait(ptr, expected, timeout_ns); |
| 1663 | 2102 | } |
| 1664 | 2103 | |
| 1665 | 2104 | fn futexWaitUncancelable(userdata: ?*anyopaque, ptr: *const u32, expected: u32) void { |
| 1666 | 2105 | if (builtin.single_threaded) unreachable; // Deadlock. |
| 1667 | 2106 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1668 | 2107 | _ = t; |
| 1669 | | Thread.futexWaitUncancelable(ptr, expected); |
| 2108 | Thread.futexWaitUncancelable(ptr, expected, null); |
| 1670 | 2109 | } |
| 1671 | 2110 | |
| 1672 | 2111 | fn futexWake(userdata: ?*anyopaque, ptr: *const u32, max_waiters: u32) void { |
| ... | ... | @@ -1684,24 +2123,24 @@ const dirCreateDir = switch (native_os) { |
| 1684 | 2123 | |
| 1685 | 2124 | fn dirCreateDirPosix(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, permissions: Dir.Permissions) Dir.CreateDirError!void { |
| 1686 | 2125 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1687 | | const current_thread = Thread.getCurrent(t); |
| 2126 | _ = t; |
| 1688 | 2127 | |
| 1689 | 2128 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 1690 | 2129 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| 1691 | 2130 | |
| 1692 | | try current_thread.beginSyscall(); |
| 2131 | const syscall: Syscall = try .start(); |
| 1693 | 2132 | while (true) { |
| 1694 | 2133 | switch (posix.errno(posix.system.mkdirat(dir.handle, sub_path_posix, permissions.toMode()))) { |
| 1695 | 2134 | .SUCCESS => { |
| 1696 | | current_thread.endSyscall(); |
| 2135 | syscall.finish(); |
| 1697 | 2136 | return; |
| 1698 | 2137 | }, |
| 1699 | 2138 | .INTR => { |
| 1700 | | try current_thread.checkCancel(); |
| 2139 | try syscall.checkCancel(); |
| 1701 | 2140 | continue; |
| 1702 | 2141 | }, |
| 1703 | 2142 | else => |e| { |
| 1704 | | current_thread.endSyscall(); |
| 2143 | syscall.finish(); |
| 1705 | 2144 | switch (e) { |
| 1706 | 2145 | .ACCES => return error.AccessDenied, |
| 1707 | 2146 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -1730,20 +2169,20 @@ fn dirCreateDirPosix(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, perm |
| 1730 | 2169 | fn dirCreateDirWasi(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, permissions: Dir.Permissions) Dir.CreateDirError!void { |
| 1731 | 2170 | if (builtin.link_libc) return dirCreateDirPosix(userdata, dir, sub_path, permissions); |
| 1732 | 2171 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1733 | | const current_thread = Thread.getCurrent(t); |
| 1734 | | try current_thread.beginSyscall(); |
| 2172 | _ = t; |
| 2173 | const syscall: Syscall = try .start(); |
| 1735 | 2174 | while (true) { |
| 1736 | 2175 | switch (std.os.wasi.path_create_directory(dir.handle, sub_path.ptr, sub_path.len)) { |
| 1737 | 2176 | .SUCCESS => { |
| 1738 | | current_thread.endSyscall(); |
| 2177 | syscall.finish(); |
| 1739 | 2178 | return; |
| 1740 | 2179 | }, |
| 1741 | 2180 | .INTR => { |
| 1742 | | try current_thread.checkCancel(); |
| 2181 | try syscall.checkCancel(); |
| 1743 | 2182 | continue; |
| 1744 | 2183 | }, |
| 1745 | 2184 | else => |e| { |
| 1746 | | current_thread.endSyscall(); |
| 2185 | syscall.finish(); |
| 1747 | 2186 | switch (e) { |
| 1748 | 2187 | .ACCES => return error.AccessDenied, |
| 1749 | 2188 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -1770,27 +2209,35 @@ fn dirCreateDirWasi(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, permi |
| 1770 | 2209 | |
| 1771 | 2210 | fn dirCreateDirWindows(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, permissions: Dir.Permissions) Dir.CreateDirError!void { |
| 1772 | 2211 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1773 | | const current_thread = Thread.getCurrent(t); |
| 1774 | | try current_thread.checkCancel(); |
| 2212 | _ = t; |
| 1775 | 2213 | |
| 1776 | 2214 | const sub_path_w = try windows.sliceToPrefixedFileW(dir.handle, sub_path); |
| 1777 | 2215 | _ = permissions; // TODO use this value |
| 1778 | | const sub_dir_handle = windows.OpenFile(sub_path_w.span(), .{ |
| 1779 | | .dir = dir.handle, |
| 1780 | | .access_mask = .{ |
| 1781 | | .GENERIC = .{ .READ = true }, |
| 1782 | | .STANDARD = .{ .SYNCHRONIZE = true }, |
| 1783 | | }, |
| 1784 | | .creation = .CREATE, |
| 1785 | | .filter = .dir_only, |
| 1786 | | }) catch |err| switch (err) { |
| 1787 | | error.IsDir => return error.Unexpected, |
| 1788 | | error.PipeBusy => return error.Unexpected, |
| 1789 | | error.NoDevice => return error.Unexpected, |
| 1790 | | error.WouldBlock => return error.Unexpected, |
| 1791 | | error.AntivirusInterference => return error.Unexpected, |
| 1792 | | else => |e| return e, |
| 2216 | |
| 2217 | const syscall: Syscall = try .start(); |
| 2218 | const sub_dir_handle = while (true) { |
| 2219 | break windows.OpenFile(sub_path_w.span(), .{ |
| 2220 | .dir = dir.handle, |
| 2221 | .access_mask = .{ |
| 2222 | .GENERIC = .{ .READ = true }, |
| 2223 | .STANDARD = .{ .SYNCHRONIZE = true }, |
| 2224 | }, |
| 2225 | .creation = .CREATE, |
| 2226 | .filter = .dir_only, |
| 2227 | }) catch |err| switch (err) { |
| 2228 | error.IsDir => return syscall.fail(error.Unexpected), |
| 2229 | error.PipeBusy => return syscall.fail(error.Unexpected), |
| 2230 | error.NoDevice => return syscall.fail(error.Unexpected), |
| 2231 | error.WouldBlock => return syscall.fail(error.Unexpected), |
| 2232 | error.AntivirusInterference => return syscall.fail(error.Unexpected), |
| 2233 | error.OperationCanceled => { |
| 2234 | try syscall.checkCancel(); |
| 2235 | continue; |
| 2236 | }, |
| 2237 | else => |e| return syscall.fail(e), |
| 2238 | }; |
| 1793 | 2239 | }; |
| 2240 | syscall.finish(); |
| 1794 | 2241 | windows.CloseHandle(sub_dir_handle); |
| 1795 | 2242 | } |
| 1796 | 2243 | |
| ... | ... | @@ -1858,7 +2305,6 @@ fn dirCreateDirPathOpenWindows( |
| 1858 | 2305 | options: Dir.OpenOptions, |
| 1859 | 2306 | ) Dir.CreateDirPathOpenError!Dir { |
| 1860 | 2307 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 1861 | | const current_thread = Thread.getCurrent(t); |
| 1862 | 2308 | const w = windows; |
| 1863 | 2309 | |
| 1864 | 2310 | _ = permissions; // TODO apply these permissions |
| ... | ... | @@ -1870,9 +2316,7 @@ fn dirCreateDirPathOpenWindows( |
| 1870 | 2316 | .path = sub_path, |
| 1871 | 2317 | }; |
| 1872 | 2318 | |
| 1873 | | while (true) { |
| 1874 | | try current_thread.checkCancel(); |
| 1875 | | |
| 2319 | components: while (true) { |
| 1876 | 2320 | const sub_path_w_array = try w.sliceToPrefixedFileW(dir.handle, component.path); |
| 1877 | 2321 | const sub_path_w = sub_path_w_array.span(); |
| 1878 | 2322 | const is_last = it.peekNext() == null; |
| ... | ... | @@ -1887,7 +2331,9 @@ fn dirCreateDirPathOpenWindows( |
| 1887 | 2331 | .Buffer = @constCast(sub_path_w.ptr), |
| 1888 | 2332 | }; |
| 1889 | 2333 | var io_status_block: w.IO_STATUS_BLOCK = undefined; |
| 1890 | | const rc = w.ntdll.NtCreateFile( |
| 2334 | |
| 2335 | const syscall: Syscall = try .start(); |
| 2336 | while (true) switch (w.ntdll.NtCreateFile( |
| 1891 | 2337 | &result.handle, |
| 1892 | 2338 | .{ |
| 1893 | 2339 | .SPECIFIC = .{ .FILE_DIRECTORY = .{ |
| ... | ... | @@ -1922,16 +2368,20 @@ fn dirCreateDirPathOpenWindows( |
| 1922 | 2368 | }, |
| 1923 | 2369 | null, |
| 1924 | 2370 | 0, |
| 1925 | | ); |
| 1926 | | |
| 1927 | | switch (rc) { |
| 2371 | )) { |
| 1928 | 2372 | .SUCCESS => { |
| 2373 | syscall.finish(); |
| 1929 | 2374 | component = it.next() orelse return result; |
| 1930 | 2375 | w.CloseHandle(result.handle); |
| 2376 | continue :components; |
| 2377 | }, |
| 2378 | .CANCELLED => { |
| 2379 | try syscall.checkCancel(); |
| 1931 | 2380 | continue; |
| 1932 | 2381 | }, |
| 1933 | | .OBJECT_NAME_INVALID => return error.BadPathName, |
| 2382 | .OBJECT_NAME_INVALID => return syscall.fail(error.BadPathName), |
| 1934 | 2383 | .OBJECT_NAME_COLLISION => { |
| 2384 | syscall.finish(); |
| 1935 | 2385 | assert(!is_last); |
| 1936 | 2386 | // stat the file and return an error if it's not a directory |
| 1937 | 2387 | // this is important because otherwise a dangling symlink |
| ... | ... | @@ -1942,23 +2392,24 @@ fn dirCreateDirPathOpenWindows( |
| 1942 | 2392 | if (fstat.kind != .directory) return error.NotDir; |
| 1943 | 2393 | |
| 1944 | 2394 | component = it.next().?; |
| 1945 | | continue; |
| 2395 | continue :components; |
| 1946 | 2396 | }, |
| 1947 | 2397 | |
| 1948 | 2398 | .OBJECT_NAME_NOT_FOUND, |
| 1949 | 2399 | .OBJECT_PATH_NOT_FOUND, |
| 1950 | 2400 | => { |
| 2401 | syscall.finish(); |
| 1951 | 2402 | component = it.previous() orelse return error.FileNotFound; |
| 1952 | | continue; |
| 2403 | continue :components; |
| 1953 | 2404 | }, |
| 1954 | 2405 | |
| 1955 | | .NOT_A_DIRECTORY => return error.NotDir, |
| 2406 | .NOT_A_DIRECTORY => return syscall.fail(error.NotDir), |
| 1956 | 2407 | // This can happen if the directory has 'List folder contents' permission set to 'Deny' |
| 1957 | 2408 | // and the directory is trying to be opened for iteration. |
| 1958 | | .ACCESS_DENIED => return error.AccessDenied, |
| 1959 | | .INVALID_PARAMETER => |err| return w.statusBug(err), |
| 1960 | | else => return w.unexpectedStatus(rc), |
| 1961 | | } |
| 2409 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 2410 | .INVALID_PARAMETER => |s| return syscall.ntstatusBug(s), |
| 2411 | else => |s| return syscall.unexpectedNtstatus(s), |
| 2412 | }; |
| 1962 | 2413 | } |
| 1963 | 2414 | } |
| 1964 | 2415 | |
| ... | ... | @@ -2000,7 +2451,7 @@ fn dirStatFileLinux( |
| 2000 | 2451 | options: Dir.StatFileOptions, |
| 2001 | 2452 | ) Dir.StatFileError!File.Stat { |
| 2002 | 2453 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2003 | | const current_thread = Thread.getCurrent(t); |
| 2454 | _ = t; |
| 2004 | 2455 | const linux = std.os.linux; |
| 2005 | 2456 | const use_c = std.c.versionCheck(if (builtin.abi.isAndroid()) |
| 2006 | 2457 | .{ .major = 30, .minor = 0, .patch = 0 } |
| ... | ... | @@ -2014,20 +2465,20 @@ fn dirStatFileLinux( |
| 2014 | 2465 | const flags: u32 = linux.AT.NO_AUTOMOUNT | |
| 2015 | 2466 | @as(u32, if (!options.follow_symlinks) linux.AT.SYMLINK_NOFOLLOW else 0); |
| 2016 | 2467 | |
| 2017 | | try current_thread.beginSyscall(); |
| 2468 | const syscall: Syscall = try .start(); |
| 2018 | 2469 | while (true) { |
| 2019 | 2470 | var statx = std.mem.zeroes(linux.Statx); |
| 2020 | 2471 | switch (sys.errno(sys.statx(dir.handle, sub_path_posix, flags, linux_statx_request, &statx))) { |
| 2021 | 2472 | .SUCCESS => { |
| 2022 | | current_thread.endSyscall(); |
| 2473 | syscall.finish(); |
| 2023 | 2474 | return statFromLinux(&statx); |
| 2024 | 2475 | }, |
| 2025 | 2476 | .INTR => { |
| 2026 | | try current_thread.checkCancel(); |
| 2477 | try syscall.checkCancel(); |
| 2027 | 2478 | continue; |
| 2028 | 2479 | }, |
| 2029 | 2480 | else => |e| { |
| 2030 | | current_thread.endSyscall(); |
| 2481 | syscall.finish(); |
| 2031 | 2482 | switch (e) { |
| 2032 | 2483 | .ACCES => return error.AccessDenied, |
| 2033 | 2484 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -2052,31 +2503,31 @@ fn dirStatFilePosix( |
| 2052 | 2503 | options: Dir.StatFileOptions, |
| 2053 | 2504 | ) Dir.StatFileError!File.Stat { |
| 2054 | 2505 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2055 | | const current_thread = Thread.getCurrent(t); |
| 2506 | _ = t; |
| 2056 | 2507 | |
| 2057 | 2508 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 2058 | 2509 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| 2059 | 2510 | |
| 2060 | 2511 | const flags: u32 = if (!options.follow_symlinks) posix.AT.SYMLINK_NOFOLLOW else 0; |
| 2061 | 2512 | |
| 2062 | | return posixStatFile(current_thread, dir.handle, sub_path_posix, flags); |
| 2513 | return posixStatFile(dir.handle, sub_path_posix, flags); |
| 2063 | 2514 | } |
| 2064 | 2515 | |
| 2065 | | fn posixStatFile(current_thread: *Thread, dir_fd: posix.fd_t, sub_path: [:0]const u8, flags: u32) Dir.StatFileError!File.Stat { |
| 2066 | | try current_thread.beginSyscall(); |
| 2516 | fn posixStatFile(dir_fd: posix.fd_t, sub_path: [:0]const u8, flags: u32) Dir.StatFileError!File.Stat { |
| 2517 | const syscall: Syscall = try .start(); |
| 2067 | 2518 | while (true) { |
| 2068 | 2519 | var stat = std.mem.zeroes(posix.Stat); |
| 2069 | 2520 | switch (posix.errno(fstatat_sym(dir_fd, sub_path, &stat, flags))) { |
| 2070 | 2521 | .SUCCESS => { |
| 2071 | | current_thread.endSyscall(); |
| 2522 | syscall.finish(); |
| 2072 | 2523 | return statFromPosix(&stat); |
| 2073 | 2524 | }, |
| 2074 | 2525 | .INTR => { |
| 2075 | | try current_thread.checkCancel(); |
| 2526 | try syscall.checkCancel(); |
| 2076 | 2527 | continue; |
| 2077 | 2528 | }, |
| 2078 | 2529 | else => |e| { |
| 2079 | | current_thread.endSyscall(); |
| 2530 | syscall.finish(); |
| 2080 | 2531 | switch (e) { |
| 2081 | 2532 | .INVAL => |err| return errnoBug(err), |
| 2082 | 2533 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -2118,25 +2569,25 @@ fn dirStatFileWasi( |
| 2118 | 2569 | ) Dir.StatFileError!File.Stat { |
| 2119 | 2570 | if (builtin.link_libc) return dirStatFilePosix(userdata, dir, sub_path, options); |
| 2120 | 2571 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2121 | | const current_thread = Thread.getCurrent(t); |
| 2572 | _ = t; |
| 2122 | 2573 | const wasi = std.os.wasi; |
| 2123 | 2574 | const flags: wasi.lookupflags_t = .{ |
| 2124 | 2575 | .SYMLINK_FOLLOW = options.follow_symlinks, |
| 2125 | 2576 | }; |
| 2126 | 2577 | var stat: wasi.filestat_t = undefined; |
| 2127 | | try current_thread.beginSyscall(); |
| 2578 | const syscall: Syscall = try .start(); |
| 2128 | 2579 | while (true) { |
| 2129 | 2580 | switch (wasi.path_filestat_get(dir.handle, flags, sub_path.ptr, sub_path.len, &stat)) { |
| 2130 | 2581 | .SUCCESS => { |
| 2131 | | current_thread.endSyscall(); |
| 2582 | syscall.finish(); |
| 2132 | 2583 | return statFromWasi(&stat); |
| 2133 | 2584 | }, |
| 2134 | 2585 | .INTR => { |
| 2135 | | try current_thread.checkCancel(); |
| 2586 | try syscall.checkCancel(); |
| 2136 | 2587 | continue; |
| 2137 | 2588 | }, |
| 2138 | 2589 | else => |e| { |
| 2139 | | current_thread.endSyscall(); |
| 2590 | syscall.finish(); |
| 2140 | 2591 | switch (e) { |
| 2141 | 2592 | .INVAL => |err| return errnoBug(err), |
| 2142 | 2593 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -2159,24 +2610,23 @@ fn fileLength(userdata: ?*anyopaque, file: File) File.LengthError!u64 { |
| 2159 | 2610 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2160 | 2611 | |
| 2161 | 2612 | if (native_os == .linux) { |
| 2162 | | const current_thread = Thread.getCurrent(t); |
| 2163 | 2613 | const linux = std.os.linux; |
| 2164 | 2614 | |
| 2165 | | try current_thread.beginSyscall(); |
| 2615 | const syscall: Syscall = try .start(); |
| 2166 | 2616 | while (true) { |
| 2167 | 2617 | var statx = std.mem.zeroes(linux.Statx); |
| 2168 | 2618 | switch (linux.errno(linux.statx(file.handle, "", linux.AT.EMPTY_PATH, .{ .SIZE = true }, &statx))) { |
| 2169 | 2619 | .SUCCESS => { |
| 2170 | | current_thread.endSyscall(); |
| 2620 | syscall.finish(); |
| 2171 | 2621 | if (!statx.mask.SIZE) return error.Unexpected; |
| 2172 | 2622 | return statx.size; |
| 2173 | 2623 | }, |
| 2174 | 2624 | .INTR => { |
| 2175 | | try current_thread.checkCancel(); |
| 2625 | try syscall.checkCancel(); |
| 2176 | 2626 | continue; |
| 2177 | 2627 | }, |
| 2178 | 2628 | else => |e| { |
| 2179 | | current_thread.endSyscall(); |
| 2629 | syscall.finish(); |
| 2180 | 2630 | switch (e) { |
| 2181 | 2631 | .ACCES => |err| return errnoBug(err), |
| 2182 | 2632 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -2209,24 +2659,24 @@ const fileStat = switch (native_os) { |
| 2209 | 2659 | |
| 2210 | 2660 | fn fileStatPosix(userdata: ?*anyopaque, file: File) File.StatError!File.Stat { |
| 2211 | 2661 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2212 | | const current_thread = Thread.getCurrent(t); |
| 2662 | _ = t; |
| 2213 | 2663 | |
| 2214 | 2664 | if (posix.Stat == void) return error.Streaming; |
| 2215 | 2665 | |
| 2216 | | try current_thread.beginSyscall(); |
| 2666 | const syscall: Syscall = try .start(); |
| 2217 | 2667 | while (true) { |
| 2218 | 2668 | var stat = std.mem.zeroes(posix.Stat); |
| 2219 | 2669 | switch (posix.errno(fstat_sym(file.handle, &stat))) { |
| 2220 | 2670 | .SUCCESS => { |
| 2221 | | current_thread.endSyscall(); |
| 2671 | syscall.finish(); |
| 2222 | 2672 | return statFromPosix(&stat); |
| 2223 | 2673 | }, |
| 2224 | 2674 | .INTR => { |
| 2225 | | try current_thread.checkCancel(); |
| 2675 | try syscall.checkCancel(); |
| 2226 | 2676 | continue; |
| 2227 | 2677 | }, |
| 2228 | 2678 | else => |e| { |
| 2229 | | current_thread.endSyscall(); |
| 2679 | syscall.finish(); |
| 2230 | 2680 | switch (e) { |
| 2231 | 2681 | .INVAL => |err| return errnoBug(err), |
| 2232 | 2682 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -2241,7 +2691,7 @@ fn fileStatPosix(userdata: ?*anyopaque, file: File) File.StatError!File.Stat { |
| 2241 | 2691 | |
| 2242 | 2692 | fn fileStatLinux(userdata: ?*anyopaque, file: File) File.StatError!File.Stat { |
| 2243 | 2693 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2244 | | const current_thread = Thread.getCurrent(t); |
| 2694 | _ = t; |
| 2245 | 2695 | const linux = std.os.linux; |
| 2246 | 2696 | const use_c = std.c.versionCheck(if (builtin.abi.isAndroid()) |
| 2247 | 2697 | .{ .major = 30, .minor = 0, .patch = 0 } |
| ... | ... | @@ -2249,20 +2699,20 @@ fn fileStatLinux(userdata: ?*anyopaque, file: File) File.StatError!File.Stat { |
| 2249 | 2699 | .{ .major = 2, .minor = 28, .patch = 0 }); |
| 2250 | 2700 | const sys = if (use_c) std.c else std.os.linux; |
| 2251 | 2701 | |
| 2252 | | try current_thread.beginSyscall(); |
| 2702 | const syscall: Syscall = try .start(); |
| 2253 | 2703 | while (true) { |
| 2254 | 2704 | var statx = std.mem.zeroes(linux.Statx); |
| 2255 | 2705 | switch (sys.errno(sys.statx(file.handle, "", linux.AT.EMPTY_PATH, linux_statx_request, &statx))) { |
| 2256 | 2706 | .SUCCESS => { |
| 2257 | | current_thread.endSyscall(); |
| 2707 | syscall.finish(); |
| 2258 | 2708 | return statFromLinux(&statx); |
| 2259 | 2709 | }, |
| 2260 | 2710 | .INTR => { |
| 2261 | | try current_thread.checkCancel(); |
| 2711 | try syscall.checkCancel(); |
| 2262 | 2712 | continue; |
| 2263 | 2713 | }, |
| 2264 | 2714 | else => |e| { |
| 2265 | | current_thread.endSyscall(); |
| 2715 | syscall.finish(); |
| 2266 | 2716 | switch (e) { |
| 2267 | 2717 | .ACCES => |err| return errnoBug(err), |
| 2268 | 2718 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -2282,21 +2732,32 @@ fn fileStatLinux(userdata: ?*anyopaque, file: File) File.StatError!File.Stat { |
| 2282 | 2732 | |
| 2283 | 2733 | fn fileStatWindows(userdata: ?*anyopaque, file: File) File.StatError!File.Stat { |
| 2284 | 2734 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2285 | | const current_thread = Thread.getCurrent(t); |
| 2286 | | try current_thread.checkCancel(); |
| 2735 | _ = t; |
| 2287 | 2736 | |
| 2288 | 2737 | var io_status_block: windows.IO_STATUS_BLOCK = undefined; |
| 2289 | 2738 | var info: windows.FILE.ALL_INFORMATION = undefined; |
| 2290 | | const rc = windows.ntdll.NtQueryInformationFile(file.handle, &io_status_block, &info, @sizeOf(windows.FILE.ALL_INFORMATION), .All); |
| 2291 | | switch (rc) { |
| 2292 | | .SUCCESS => {}, |
| 2293 | | // Buffer overflow here indicates that there is more information available than was able to be stored in the buffer |
| 2294 | | // size provided. This is treated as success because the type of variable-length information that this would be relevant for |
| 2295 | | // (name, volume name, etc) we don't care about. |
| 2296 | | .BUFFER_OVERFLOW => {}, |
| 2297 | | .INVALID_PARAMETER => |err| return windows.statusBug(err), |
| 2298 | | .ACCESS_DENIED => return error.AccessDenied, |
| 2299 | | else => return windows.unexpectedStatus(rc), |
| 2739 | { |
| 2740 | const syscall: Syscall = try .start(); |
| 2741 | while (true) switch (windows.ntdll.NtQueryInformationFile( |
| 2742 | file.handle, |
| 2743 | &io_status_block, |
| 2744 | &info, |
| 2745 | @sizeOf(windows.FILE.ALL_INFORMATION), |
| 2746 | .All, |
| 2747 | )) { |
| 2748 | .SUCCESS => break syscall.finish(), |
| 2749 | // Buffer overflow here indicates that there is more information available than was able to be stored in the buffer |
| 2750 | // size provided. This is treated as success because the type of variable-length information that this would be relevant for |
| 2751 | // (name, volume name, etc) we don't care about. |
| 2752 | .BUFFER_OVERFLOW => break syscall.finish(), |
| 2753 | .INVALID_PARAMETER => |err| return syscall.ntstatusBug(err), |
| 2754 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 2755 | .CANCELLED => { |
| 2756 | try syscall.checkCancel(); |
| 2757 | continue; |
| 2758 | }, |
| 2759 | else => |s| return syscall.unexpectedNtstatus(s), |
| 2760 | }; |
| 2300 | 2761 | } |
| 2301 | 2762 | return .{ |
| 2302 | 2763 | .inode = info.InternalInformation.IndexNumber, |
| ... | ... | @@ -2304,15 +2765,25 @@ fn fileStatWindows(userdata: ?*anyopaque, file: File) File.StatError!File.Stat { |
| 2304 | 2765 | .permissions = .default_file, |
| 2305 | 2766 | .kind = if (info.BasicInformation.FileAttributes.REPARSE_POINT) reparse_point: { |
| 2306 | 2767 | var tag_info: windows.FILE.ATTRIBUTE_TAG_INFO = undefined; |
| 2307 | | const tag_rc = windows.ntdll.NtQueryInformationFile(file.handle, &io_status_block, &tag_info, @sizeOf(windows.FILE.ATTRIBUTE_TAG_INFO), .AttributeTag); |
| 2308 | | switch (tag_rc) { |
| 2309 | | .SUCCESS => {}, |
| 2768 | const syscall: Syscall = try .start(); |
| 2769 | while (true) switch (windows.ntdll.NtQueryInformationFile( |
| 2770 | file.handle, |
| 2771 | &io_status_block, |
| 2772 | &tag_info, |
| 2773 | @sizeOf(windows.FILE.ATTRIBUTE_TAG_INFO), |
| 2774 | .AttributeTag, |
| 2775 | )) { |
| 2776 | .SUCCESS => break syscall.finish(), |
| 2310 | 2777 | // INFO_LENGTH_MISMATCH and ACCESS_DENIED are the only documented possible errors |
| 2311 | 2778 | // https://learn.microsoft.com/en-us/openspecs/windows_protocols/ms-fscc/d295752f-ce89-4b98-8553-266d37c84f0e |
| 2312 | | .INFO_LENGTH_MISMATCH => |err| return windows.statusBug(err), |
| 2313 | | .ACCESS_DENIED => return error.AccessDenied, |
| 2314 | | else => return windows.unexpectedStatus(rc), |
| 2315 | | } |
| 2779 | .INFO_LENGTH_MISMATCH => |err| return syscall.ntstatusBug(err), |
| 2780 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 2781 | .CANCELLED => { |
| 2782 | try syscall.checkCancel(); |
| 2783 | continue; |
| 2784 | }, |
| 2785 | else => |s| return syscall.unexpectedNtstatus(s), |
| 2786 | }; |
| 2316 | 2787 | if (tag_info.ReparseTag.IsSurrogate) break :reparse_point .sym_link; |
| 2317 | 2788 | // Unknown reparse point |
| 2318 | 2789 | break :reparse_point .unknown; |
| ... | ... | @@ -2331,22 +2802,22 @@ fn fileStatWasi(userdata: ?*anyopaque, file: File) File.StatError!File.Stat { |
| 2331 | 2802 | if (builtin.link_libc) return fileStatPosix(userdata, file); |
| 2332 | 2803 | |
| 2333 | 2804 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2334 | | const current_thread = Thread.getCurrent(t); |
| 2805 | _ = t; |
| 2335 | 2806 | |
| 2336 | | try current_thread.beginSyscall(); |
| 2807 | const syscall: Syscall = try .start(); |
| 2337 | 2808 | while (true) { |
| 2338 | 2809 | var stat: std.os.wasi.filestat_t = undefined; |
| 2339 | 2810 | switch (std.os.wasi.fd_filestat_get(file.handle, &stat)) { |
| 2340 | 2811 | .SUCCESS => { |
| 2341 | | current_thread.endSyscall(); |
| 2812 | syscall.finish(); |
| 2342 | 2813 | return statFromWasi(&stat); |
| 2343 | 2814 | }, |
| 2344 | 2815 | .INTR => { |
| 2345 | | try current_thread.checkCancel(); |
| 2816 | try syscall.checkCancel(); |
| 2346 | 2817 | continue; |
| 2347 | 2818 | }, |
| 2348 | 2819 | else => |e| { |
| 2349 | | current_thread.endSyscall(); |
| 2820 | syscall.finish(); |
| 2350 | 2821 | switch (e) { |
| 2351 | 2822 | .INVAL => |err| return errnoBug(err), |
| 2352 | 2823 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -2373,7 +2844,7 @@ fn dirAccessPosix( |
| 2373 | 2844 | options: Dir.AccessOptions, |
| 2374 | 2845 | ) Dir.AccessError!void { |
| 2375 | 2846 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2376 | | const current_thread = Thread.getCurrent(t); |
| 2847 | _ = t; |
| 2377 | 2848 | |
| 2378 | 2849 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 2379 | 2850 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| ... | ... | @@ -2385,19 +2856,19 @@ fn dirAccessPosix( |
| 2385 | 2856 | @as(u32, if (options.write) posix.W_OK else 0) | |
| 2386 | 2857 | @as(u32, if (options.execute) posix.X_OK else 0); |
| 2387 | 2858 | |
| 2388 | | try current_thread.beginSyscall(); |
| 2859 | const syscall: Syscall = try .start(); |
| 2389 | 2860 | while (true) { |
| 2390 | 2861 | switch (posix.errno(posix.system.faccessat(dir.handle, sub_path_posix, mode, flags))) { |
| 2391 | 2862 | .SUCCESS => { |
| 2392 | | current_thread.endSyscall(); |
| 2863 | syscall.finish(); |
| 2393 | 2864 | return; |
| 2394 | 2865 | }, |
| 2395 | 2866 | .INTR => { |
| 2396 | | try current_thread.checkCancel(); |
| 2867 | try syscall.checkCancel(); |
| 2397 | 2868 | continue; |
| 2398 | 2869 | }, |
| 2399 | 2870 | else => |e| { |
| 2400 | | current_thread.endSyscall(); |
| 2871 | syscall.finish(); |
| 2401 | 2872 | switch (e) { |
| 2402 | 2873 | .ACCES => return error.AccessDenied, |
| 2403 | 2874 | .PERM => return error.PermissionDenied, |
| ... | ... | @@ -2427,26 +2898,26 @@ fn dirAccessWasi( |
| 2427 | 2898 | ) Dir.AccessError!void { |
| 2428 | 2899 | if (builtin.link_libc) return dirAccessPosix(userdata, dir, sub_path, options); |
| 2429 | 2900 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2430 | | const current_thread = Thread.getCurrent(t); |
| 2901 | _ = t; |
| 2431 | 2902 | const wasi = std.os.wasi; |
| 2432 | 2903 | const flags: wasi.lookupflags_t = .{ |
| 2433 | 2904 | .SYMLINK_FOLLOW = options.follow_symlinks, |
| 2434 | 2905 | }; |
| 2435 | 2906 | var stat: wasi.filestat_t = undefined; |
| 2436 | 2907 | |
| 2437 | | try current_thread.beginSyscall(); |
| 2908 | const syscall: Syscall = try .start(); |
| 2438 | 2909 | while (true) { |
| 2439 | 2910 | switch (wasi.path_filestat_get(dir.handle, flags, sub_path.ptr, sub_path.len, &stat)) { |
| 2440 | 2911 | .SUCCESS => { |
| 2441 | | current_thread.endSyscall(); |
| 2912 | syscall.finish(); |
| 2442 | 2913 | break; |
| 2443 | 2914 | }, |
| 2444 | 2915 | .INTR => { |
| 2445 | | try current_thread.checkCancel(); |
| 2916 | try syscall.checkCancel(); |
| 2446 | 2917 | continue; |
| 2447 | 2918 | }, |
| 2448 | 2919 | else => |e| { |
| 2449 | | current_thread.endSyscall(); |
| 2920 | syscall.finish(); |
| 2450 | 2921 | switch (e) { |
| 2451 | 2922 | .INVAL => |err| return errnoBug(err), |
| 2452 | 2923 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -2498,8 +2969,7 @@ fn dirAccessWindows( |
| 2498 | 2969 | options: Dir.AccessOptions, |
| 2499 | 2970 | ) Dir.AccessError!void { |
| 2500 | 2971 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2501 | | const current_thread = Thread.getCurrent(t); |
| 2502 | | try current_thread.checkCancel(); |
| 2972 | _ = t; |
| 2503 | 2973 | |
| 2504 | 2974 | _ = options; // TODO |
| 2505 | 2975 | |
| ... | ... | @@ -2525,16 +2995,21 @@ fn dirAccessWindows( |
| 2525 | 2995 | .SecurityQualityOfService = null, |
| 2526 | 2996 | }; |
| 2527 | 2997 | var basic_info: windows.FILE.BASIC_INFORMATION = undefined; |
| 2528 | | switch (windows.ntdll.NtQueryAttributesFile(&attr, &basic_info)) { |
| 2529 | | .SUCCESS => return, |
| 2530 | | .OBJECT_NAME_NOT_FOUND => return error.FileNotFound, |
| 2531 | | .OBJECT_PATH_NOT_FOUND => return error.FileNotFound, |
| 2532 | | .OBJECT_NAME_INVALID => |err| return windows.statusBug(err), |
| 2533 | | .INVALID_PARAMETER => |err| return windows.statusBug(err), |
| 2534 | | .ACCESS_DENIED => return error.AccessDenied, |
| 2535 | | .OBJECT_PATH_SYNTAX_BAD => |err| return windows.statusBug(err), |
| 2536 | | else => |rc| return windows.unexpectedStatus(rc), |
| 2537 | | } |
| 2998 | const syscall: Syscall = try .start(); |
| 2999 | while (true) switch (windows.ntdll.NtQueryAttributesFile(&attr, &basic_info)) { |
| 3000 | .SUCCESS => return syscall.finish(), |
| 3001 | .CANCELLED => { |
| 3002 | try syscall.checkCancel(); |
| 3003 | continue; |
| 3004 | }, |
| 3005 | .OBJECT_NAME_NOT_FOUND => return syscall.fail(error.FileNotFound), |
| 3006 | .OBJECT_PATH_NOT_FOUND => return syscall.fail(error.FileNotFound), |
| 3007 | .OBJECT_NAME_INVALID => |err| return syscall.ntstatusBug(err), |
| 3008 | .INVALID_PARAMETER => |err| return syscall.ntstatusBug(err), |
| 3009 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 3010 | .OBJECT_PATH_SYNTAX_BAD => |err| return syscall.ntstatusBug(err), |
| 3011 | else => |rc| return syscall.unexpectedNtstatus(rc), |
| 3012 | }; |
| 2538 | 3013 | } |
| 2539 | 3014 | |
| 2540 | 3015 | const dirCreateFile = switch (native_os) { |
| ... | ... | @@ -2550,7 +3025,7 @@ fn dirCreateFilePosix( |
| 2550 | 3025 | flags: File.CreateFlags, |
| 2551 | 3026 | ) File.OpenError!File { |
| 2552 | 3027 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2553 | | const current_thread = Thread.getCurrent(t); |
| 3028 | _ = t; |
| 2554 | 3029 | |
| 2555 | 3030 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 2556 | 3031 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| ... | ... | @@ -2579,49 +3054,51 @@ fn dirCreateFilePosix( |
| 2579 | 3054 | }, |
| 2580 | 3055 | }; |
| 2581 | 3056 | |
| 2582 | | try current_thread.beginSyscall(); |
| 2583 | | const fd: posix.fd_t = while (true) { |
| 2584 | | const rc = openat_sym(dir.handle, sub_path_posix, os_flags, flags.permissions.toMode()); |
| 2585 | | switch (posix.errno(rc)) { |
| 2586 | | .SUCCESS => { |
| 2587 | | current_thread.endSyscall(); |
| 2588 | | break @intCast(rc); |
| 2589 | | }, |
| 2590 | | .INTR => { |
| 2591 | | try current_thread.checkCancel(); |
| 2592 | | continue; |
| 2593 | | }, |
| 2594 | | else => |e| { |
| 2595 | | current_thread.endSyscall(); |
| 2596 | | switch (e) { |
| 2597 | | .FAULT => |err| return errnoBug(err), |
| 2598 | | .INVAL => return error.BadPathName, |
| 2599 | | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 2600 | | .ACCES => return error.AccessDenied, |
| 2601 | | .FBIG => return error.FileTooBig, |
| 2602 | | .OVERFLOW => return error.FileTooBig, |
| 2603 | | .ISDIR => return error.IsDir, |
| 2604 | | .LOOP => return error.SymLinkLoop, |
| 2605 | | .MFILE => return error.ProcessFdQuotaExceeded, |
| 2606 | | .NAMETOOLONG => return error.NameTooLong, |
| 2607 | | .NFILE => return error.SystemFdQuotaExceeded, |
| 2608 | | .NODEV => return error.NoDevice, |
| 2609 | | .NOENT => return error.FileNotFound, |
| 2610 | | .SRCH => return error.FileNotFound, // Linux when accessing procfs. |
| 2611 | | .NOMEM => return error.SystemResources, |
| 2612 | | .NOSPC => return error.NoSpaceLeft, |
| 2613 | | .NOTDIR => return error.NotDir, |
| 2614 | | .PERM => return error.PermissionDenied, |
| 2615 | | .EXIST => return error.PathAlreadyExists, |
| 2616 | | .BUSY => return error.DeviceBusy, |
| 2617 | | .OPNOTSUPP => return error.FileLocksUnsupported, |
| 2618 | | .AGAIN => return error.WouldBlock, |
| 2619 | | .TXTBSY => return error.FileBusy, |
| 2620 | | .NXIO => return error.NoDevice, |
| 2621 | | .ILSEQ => return error.BadPathName, |
| 2622 | | else => |err| return posix.unexpectedErrno(err), |
| 2623 | | } |
| 2624 | | }, |
| 3057 | const fd: posix.fd_t = fd: { |
| 3058 | const syscall: Syscall = try .start(); |
| 3059 | while (true) { |
| 3060 | const rc = openat_sym(dir.handle, sub_path_posix, os_flags, flags.permissions.toMode()); |
| 3061 | switch (posix.errno(rc)) { |
| 3062 | .SUCCESS => { |
| 3063 | syscall.finish(); |
| 3064 | break :fd @intCast(rc); |
| 3065 | }, |
| 3066 | .INTR => { |
| 3067 | try syscall.checkCancel(); |
| 3068 | continue; |
| 3069 | }, |
| 3070 | else => |e| { |
| 3071 | syscall.finish(); |
| 3072 | switch (e) { |
| 3073 | .FAULT => |err| return errnoBug(err), |
| 3074 | .INVAL => return error.BadPathName, |
| 3075 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 3076 | .ACCES => return error.AccessDenied, |
| 3077 | .FBIG => return error.FileTooBig, |
| 3078 | .OVERFLOW => return error.FileTooBig, |
| 3079 | .ISDIR => return error.IsDir, |
| 3080 | .LOOP => return error.SymLinkLoop, |
| 3081 | .MFILE => return error.ProcessFdQuotaExceeded, |
| 3082 | .NAMETOOLONG => return error.NameTooLong, |
| 3083 | .NFILE => return error.SystemFdQuotaExceeded, |
| 3084 | .NODEV => return error.NoDevice, |
| 3085 | .NOENT => return error.FileNotFound, |
| 3086 | .SRCH => return error.FileNotFound, // Linux when accessing procfs. |
| 3087 | .NOMEM => return error.SystemResources, |
| 3088 | .NOSPC => return error.NoSpaceLeft, |
| 3089 | .NOTDIR => return error.NotDir, |
| 3090 | .PERM => return error.PermissionDenied, |
| 3091 | .EXIST => return error.PathAlreadyExists, |
| 3092 | .BUSY => return error.DeviceBusy, |
| 3093 | .OPNOTSUPP => return error.FileLocksUnsupported, |
| 3094 | .AGAIN => return error.WouldBlock, |
| 3095 | .TXTBSY => return error.FileBusy, |
| 3096 | .NXIO => return error.NoDevice, |
| 3097 | .ILSEQ => return error.BadPathName, |
| 3098 | else => |err| return posix.unexpectedErrno(err), |
| 3099 | } |
| 3100 | }, |
| 3101 | } |
| 2625 | 3102 | } |
| 2626 | 3103 | }; |
| 2627 | 3104 | errdefer posix.close(fd); |
| ... | ... | @@ -2634,19 +3111,19 @@ fn dirCreateFilePosix( |
| 2634 | 3111 | .exclusive => posix.LOCK.EX | lock_nonblocking, |
| 2635 | 3112 | }; |
| 2636 | 3113 | |
| 2637 | | try current_thread.beginSyscall(); |
| 3114 | const syscall: Syscall = try .start(); |
| 2638 | 3115 | while (true) { |
| 2639 | 3116 | switch (posix.errno(posix.system.flock(fd, lock_flags))) { |
| 2640 | 3117 | .SUCCESS => { |
| 2641 | | current_thread.endSyscall(); |
| 3118 | syscall.finish(); |
| 2642 | 3119 | break; |
| 2643 | 3120 | }, |
| 2644 | 3121 | .INTR => { |
| 2645 | | try current_thread.checkCancel(); |
| 3122 | try syscall.checkCancel(); |
| 2646 | 3123 | continue; |
| 2647 | 3124 | }, |
| 2648 | 3125 | else => |e| { |
| 2649 | | current_thread.endSyscall(); |
| 3126 | syscall.finish(); |
| 2650 | 3127 | switch (e) { |
| 2651 | 3128 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 2652 | 3129 | .INVAL => |err| return errnoBug(err), // invalid parameters |
| ... | ... | @@ -2661,40 +3138,42 @@ fn dirCreateFilePosix( |
| 2661 | 3138 | } |
| 2662 | 3139 | |
| 2663 | 3140 | if (have_flock_open_flags and flags.lock_nonblocking) { |
| 2664 | | try current_thread.beginSyscall(); |
| 2665 | | var fl_flags: usize = while (true) { |
| 2666 | | const rc = posix.system.fcntl(fd, posix.F.GETFL, @as(usize, 0)); |
| 2667 | | switch (posix.errno(rc)) { |
| 2668 | | .SUCCESS => { |
| 2669 | | current_thread.endSyscall(); |
| 2670 | | break @intCast(rc); |
| 2671 | | }, |
| 2672 | | .INTR => { |
| 2673 | | try current_thread.checkCancel(); |
| 2674 | | continue; |
| 2675 | | }, |
| 2676 | | else => |err| { |
| 2677 | | current_thread.endSyscall(); |
| 2678 | | return posix.unexpectedErrno(err); |
| 2679 | | }, |
| 3141 | var fl_flags: usize = fl: { |
| 3142 | const syscall: Syscall = try .start(); |
| 3143 | while (true) { |
| 3144 | const rc = posix.system.fcntl(fd, posix.F.GETFL, @as(usize, 0)); |
| 3145 | switch (posix.errno(rc)) { |
| 3146 | .SUCCESS => { |
| 3147 | syscall.finish(); |
| 3148 | break :fl @intCast(rc); |
| 3149 | }, |
| 3150 | .INTR => { |
| 3151 | try syscall.checkCancel(); |
| 3152 | continue; |
| 3153 | }, |
| 3154 | else => |err| { |
| 3155 | syscall.finish(); |
| 3156 | return posix.unexpectedErrno(err); |
| 3157 | }, |
| 3158 | } |
| 2680 | 3159 | } |
| 2681 | 3160 | }; |
| 2682 | 3161 | |
| 2683 | 3162 | fl_flags |= @as(usize, 1 << @bitOffsetOf(posix.O, "NONBLOCK")); |
| 2684 | 3163 | |
| 2685 | | try current_thread.beginSyscall(); |
| 3164 | const syscall: Syscall = try .start(); |
| 2686 | 3165 | while (true) { |
| 2687 | 3166 | switch (posix.errno(posix.system.fcntl(fd, posix.F.SETFL, fl_flags))) { |
| 2688 | 3167 | .SUCCESS => { |
| 2689 | | current_thread.endSyscall(); |
| 3168 | syscall.finish(); |
| 2690 | 3169 | break; |
| 2691 | 3170 | }, |
| 2692 | 3171 | .INTR => { |
| 2693 | | try current_thread.checkCancel(); |
| 3172 | try syscall.checkCancel(); |
| 2694 | 3173 | continue; |
| 2695 | 3174 | }, |
| 2696 | 3175 | else => |err| { |
| 2697 | | current_thread.endSyscall(); |
| 3176 | syscall.finish(); |
| 2698 | 3177 | return posix.unexpectedErrno(err); |
| 2699 | 3178 | }, |
| 2700 | 3179 | } |
| ... | ... | @@ -2712,28 +3191,41 @@ fn dirCreateFileWindows( |
| 2712 | 3191 | ) File.OpenError!File { |
| 2713 | 3192 | const w = windows; |
| 2714 | 3193 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2715 | | const current_thread = Thread.getCurrent(t); |
| 2716 | | try current_thread.checkCancel(); |
| 3194 | _ = t; |
| 2717 | 3195 | |
| 2718 | 3196 | const sub_path_w_array = try w.sliceToPrefixedFileW(dir.handle, sub_path); |
| 2719 | 3197 | const sub_path_w = sub_path_w_array.span(); |
| 2720 | 3198 | |
| 2721 | | const handle = try w.OpenFile(sub_path_w, .{ |
| 2722 | | .dir = dir.handle, |
| 2723 | | .access_mask = .{ |
| 2724 | | .STANDARD = .{ .SYNCHRONIZE = true }, |
| 2725 | | .GENERIC = .{ |
| 2726 | | .WRITE = true, |
| 2727 | | .READ = flags.read, |
| 2728 | | }, |
| 2729 | | }, |
| 2730 | | .creation = if (flags.exclusive) |
| 2731 | | .CREATE |
| 2732 | | else if (flags.truncate) |
| 2733 | | .OVERWRITE_IF |
| 2734 | | else |
| 2735 | | .OPEN_IF, |
| 2736 | | }); |
| 3199 | const handle = handle: { |
| 3200 | const syscall: Syscall = try .start(); |
| 3201 | while (true) { |
| 3202 | if (w.OpenFile(sub_path_w, .{ |
| 3203 | .dir = dir.handle, |
| 3204 | .access_mask = .{ |
| 3205 | .STANDARD = .{ .SYNCHRONIZE = true }, |
| 3206 | .GENERIC = .{ |
| 3207 | .WRITE = true, |
| 3208 | .READ = flags.read, |
| 3209 | }, |
| 3210 | }, |
| 3211 | .creation = if (flags.exclusive) |
| 3212 | .CREATE |
| 3213 | else if (flags.truncate) |
| 3214 | .OVERWRITE_IF |
| 3215 | else |
| 3216 | .OPEN_IF, |
| 3217 | })) |handle| { |
| 3218 | syscall.finish(); |
| 3219 | break :handle handle; |
| 3220 | } else |err| switch (err) { |
| 3221 | error.OperationCanceled => { |
| 3222 | try syscall.checkCancel(); |
| 3223 | continue; |
| 3224 | }, |
| 3225 | else => |e| return syscall.fail(e), |
| 3226 | } |
| 3227 | } |
| 3228 | }; |
| 2737 | 3229 | errdefer w.CloseHandle(handle); |
| 2738 | 3230 | |
| 2739 | 3231 | var io_status_block: w.IO_STATUS_BLOCK = undefined; |
| ... | ... | @@ -2742,7 +3234,8 @@ fn dirCreateFileWindows( |
| 2742 | 3234 | .shared => false, |
| 2743 | 3235 | .exclusive => true, |
| 2744 | 3236 | }; |
| 2745 | | const status = w.ntdll.NtLockFile( |
| 3237 | const syscall: Syscall = try .start(); |
| 3238 | while (true) switch (w.ntdll.NtLockFile( |
| 2746 | 3239 | handle, |
| 2747 | 3240 | null, |
| 2748 | 3241 | null, |
| ... | ... | @@ -2753,16 +3246,16 @@ fn dirCreateFileWindows( |
| 2753 | 3246 | null, |
| 2754 | 3247 | @intFromBool(flags.lock_nonblocking), |
| 2755 | 3248 | @intFromBool(exclusive), |
| 2756 | | ); |
| 2757 | | switch (status) { |
| 2758 | | .SUCCESS => {}, |
| 2759 | | .INSUFFICIENT_RESOURCES => return error.SystemResources, |
| 2760 | | .LOCK_NOT_GRANTED => return error.WouldBlock, |
| 2761 | | .ACCESS_VIOLATION => |err| return windows.statusBug(err), // bad io_status_block pointer |
| 2762 | | else => return windows.unexpectedStatus(status), |
| 2763 | | } |
| 2764 | | |
| 2765 | | return .{ .handle = handle }; |
| 3249 | )) { |
| 3250 | .SUCCESS => { |
| 3251 | syscall.finish(); |
| 3252 | return .{ .handle = handle }; |
| 3253 | }, |
| 3254 | .INSUFFICIENT_RESOURCES => return syscall.fail(error.SystemResources), |
| 3255 | .LOCK_NOT_GRANTED => return syscall.fail(error.WouldBlock), |
| 3256 | .ACCESS_VIOLATION => |err| return syscall.ntstatusBug(err), // bad io_status_block pointer |
| 3257 | else => |status| return syscall.unexpectedNtstatus(status), |
| 3258 | }; |
| 2766 | 3259 | } |
| 2767 | 3260 | |
| 2768 | 3261 | fn dirCreateFileWasi( |
| ... | ... | @@ -2772,7 +3265,7 @@ fn dirCreateFileWasi( |
| 2772 | 3265 | flags: File.CreateFlags, |
| 2773 | 3266 | ) File.OpenError!File { |
| 2774 | 3267 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2775 | | const current_thread = Thread.getCurrent(t); |
| 3268 | _ = t; |
| 2776 | 3269 | const wasi = std.os.wasi; |
| 2777 | 3270 | const lookup_flags: wasi.lookupflags_t = .{}; |
| 2778 | 3271 | const oflags: wasi.oflags_t = .{ |
| ... | ... | @@ -2800,19 +3293,19 @@ fn dirCreateFileWasi( |
| 2800 | 3293 | }; |
| 2801 | 3294 | const inheriting: wasi.rights_t = .{}; |
| 2802 | 3295 | var fd: posix.fd_t = undefined; |
| 2803 | | try current_thread.beginSyscall(); |
| 3296 | const syscall: Syscall = try .start(); |
| 2804 | 3297 | while (true) { |
| 2805 | 3298 | switch (wasi.path_open(dir.handle, lookup_flags, sub_path.ptr, sub_path.len, oflags, base, inheriting, fdflags, &fd)) { |
| 2806 | 3299 | .SUCCESS => { |
| 2807 | | current_thread.endSyscall(); |
| 3300 | syscall.finish(); |
| 2808 | 3301 | return .{ .handle = fd }; |
| 2809 | 3302 | }, |
| 2810 | 3303 | .INTR => { |
| 2811 | | try current_thread.checkCancel(); |
| 3304 | try syscall.checkCancel(); |
| 2812 | 3305 | continue; |
| 2813 | 3306 | }, |
| 2814 | 3307 | else => |e| { |
| 2815 | | current_thread.endSyscall(); |
| 3308 | syscall.finish(); |
| 2816 | 3309 | switch (e) { |
| 2817 | 3310 | .FAULT => |err| return errnoBug(err), |
| 2818 | 3311 | .INVAL => return error.BadPathName, |
| ... | ... | @@ -2855,7 +3348,6 @@ fn dirOpenFilePosix( |
| 2855 | 3348 | flags: File.OpenFlags, |
| 2856 | 3349 | ) File.OpenError!File { |
| 2857 | 3350 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 2858 | | const current_thread = Thread.getCurrent(t); |
| 2859 | 3351 | |
| 2860 | 3352 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 2861 | 3353 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| ... | ... | @@ -2895,49 +3387,51 @@ fn dirOpenFilePosix( |
| 2895 | 3387 | }, |
| 2896 | 3388 | }; |
| 2897 | 3389 | |
| 2898 | | try current_thread.beginSyscall(); |
| 2899 | | const fd: posix.fd_t = while (true) { |
| 2900 | | const rc = openat_sym(dir.handle, sub_path_posix, os_flags, @as(posix.mode_t, 0)); |
| 2901 | | switch (posix.errno(rc)) { |
| 2902 | | .SUCCESS => { |
| 2903 | | current_thread.endSyscall(); |
| 2904 | | break @intCast(rc); |
| 2905 | | }, |
| 2906 | | .INTR => { |
| 2907 | | try current_thread.checkCancel(); |
| 2908 | | continue; |
| 2909 | | }, |
| 2910 | | else => |e| { |
| 2911 | | current_thread.endSyscall(); |
| 2912 | | switch (e) { |
| 2913 | | .FAULT => |err| return errnoBug(err), |
| 2914 | | .INVAL => return error.BadPathName, |
| 2915 | | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 2916 | | .ACCES => return error.AccessDenied, |
| 2917 | | .FBIG => return error.FileTooBig, |
| 2918 | | .OVERFLOW => return error.FileTooBig, |
| 2919 | | .ISDIR => return error.IsDir, |
| 2920 | | .LOOP => return error.SymLinkLoop, |
| 2921 | | .MFILE => return error.ProcessFdQuotaExceeded, |
| 2922 | | .NAMETOOLONG => return error.NameTooLong, |
| 2923 | | .NFILE => return error.SystemFdQuotaExceeded, |
| 2924 | | .NODEV => return error.NoDevice, |
| 2925 | | .NOENT => return error.FileNotFound, |
| 2926 | | .SRCH => return error.FileNotFound, // Linux when opening procfs files. |
| 2927 | | .NOMEM => return error.SystemResources, |
| 2928 | | .NOSPC => return error.NoSpaceLeft, |
| 2929 | | .NOTDIR => return error.NotDir, |
| 2930 | | .PERM => return error.PermissionDenied, |
| 2931 | | .EXIST => return error.PathAlreadyExists, |
| 2932 | | .BUSY => return error.DeviceBusy, |
| 2933 | | .OPNOTSUPP => return error.FileLocksUnsupported, |
| 2934 | | .AGAIN => return error.WouldBlock, |
| 2935 | | .TXTBSY => return error.FileBusy, |
| 2936 | | .NXIO => return error.NoDevice, |
| 2937 | | .ILSEQ => return error.BadPathName, |
| 2938 | | else => |err| return posix.unexpectedErrno(err), |
| 2939 | | } |
| 2940 | | }, |
| 3390 | const fd: posix.fd_t = fd: { |
| 3391 | const syscall: Syscall = try .start(); |
| 3392 | while (true) { |
| 3393 | const rc = openat_sym(dir.handle, sub_path_posix, os_flags, @as(posix.mode_t, 0)); |
| 3394 | switch (posix.errno(rc)) { |
| 3395 | .SUCCESS => { |
| 3396 | syscall.finish(); |
| 3397 | break :fd @intCast(rc); |
| 3398 | }, |
| 3399 | .INTR => { |
| 3400 | try syscall.checkCancel(); |
| 3401 | continue; |
| 3402 | }, |
| 3403 | else => |e| { |
| 3404 | syscall.finish(); |
| 3405 | switch (e) { |
| 3406 | .FAULT => |err| return errnoBug(err), |
| 3407 | .INVAL => return error.BadPathName, |
| 3408 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 3409 | .ACCES => return error.AccessDenied, |
| 3410 | .FBIG => return error.FileTooBig, |
| 3411 | .OVERFLOW => return error.FileTooBig, |
| 3412 | .ISDIR => return error.IsDir, |
| 3413 | .LOOP => return error.SymLinkLoop, |
| 3414 | .MFILE => return error.ProcessFdQuotaExceeded, |
| 3415 | .NAMETOOLONG => return error.NameTooLong, |
| 3416 | .NFILE => return error.SystemFdQuotaExceeded, |
| 3417 | .NODEV => return error.NoDevice, |
| 3418 | .NOENT => return error.FileNotFound, |
| 3419 | .SRCH => return error.FileNotFound, // Linux when opening procfs files. |
| 3420 | .NOMEM => return error.SystemResources, |
| 3421 | .NOSPC => return error.NoSpaceLeft, |
| 3422 | .NOTDIR => return error.NotDir, |
| 3423 | .PERM => return error.PermissionDenied, |
| 3424 | .EXIST => return error.PathAlreadyExists, |
| 3425 | .BUSY => return error.DeviceBusy, |
| 3426 | .OPNOTSUPP => return error.FileLocksUnsupported, |
| 3427 | .AGAIN => return error.WouldBlock, |
| 3428 | .TXTBSY => return error.FileBusy, |
| 3429 | .NXIO => return error.NoDevice, |
| 3430 | .ILSEQ => return error.BadPathName, |
| 3431 | else => |err| return posix.unexpectedErrno(err), |
| 3432 | } |
| 3433 | }, |
| 3434 | } |
| 2941 | 3435 | } |
| 2942 | 3436 | }; |
| 2943 | 3437 | errdefer posix.close(fd); |
| ... | ... | @@ -2961,19 +3455,19 @@ fn dirOpenFilePosix( |
| 2961 | 3455 | .shared => posix.LOCK.SH | lock_nonblocking, |
| 2962 | 3456 | .exclusive => posix.LOCK.EX | lock_nonblocking, |
| 2963 | 3457 | }; |
| 2964 | | try current_thread.beginSyscall(); |
| 3458 | const syscall: Syscall = try .start(); |
| 2965 | 3459 | while (true) { |
| 2966 | 3460 | switch (posix.errno(posix.system.flock(fd, lock_flags))) { |
| 2967 | 3461 | .SUCCESS => { |
| 2968 | | current_thread.endSyscall(); |
| 3462 | syscall.finish(); |
| 2969 | 3463 | break; |
| 2970 | 3464 | }, |
| 2971 | 3465 | .INTR => { |
| 2972 | | try current_thread.checkCancel(); |
| 3466 | try syscall.checkCancel(); |
| 2973 | 3467 | continue; |
| 2974 | 3468 | }, |
| 2975 | 3469 | else => |e| { |
| 2976 | | current_thread.endSyscall(); |
| 3470 | syscall.finish(); |
| 2977 | 3471 | switch (e) { |
| 2978 | 3472 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 2979 | 3473 | .INVAL => |err| return errnoBug(err), // invalid parameters |
| ... | ... | @@ -2988,40 +3482,42 @@ fn dirOpenFilePosix( |
| 2988 | 3482 | } |
| 2989 | 3483 | |
| 2990 | 3484 | if (have_flock_open_flags and flags.lock_nonblocking) { |
| 2991 | | try current_thread.beginSyscall(); |
| 2992 | | var fl_flags: usize = while (true) { |
| 2993 | | const rc = posix.system.fcntl(fd, posix.F.GETFL, @as(usize, 0)); |
| 2994 | | switch (posix.errno(rc)) { |
| 2995 | | .SUCCESS => { |
| 2996 | | current_thread.endSyscall(); |
| 2997 | | break @intCast(rc); |
| 2998 | | }, |
| 2999 | | .INTR => { |
| 3000 | | try current_thread.checkCancel(); |
| 3001 | | continue; |
| 3002 | | }, |
| 3003 | | else => |err| { |
| 3004 | | current_thread.endSyscall(); |
| 3005 | | return posix.unexpectedErrno(err); |
| 3006 | | }, |
| 3485 | var fl_flags: usize = fl: { |
| 3486 | const syscall: Syscall = try .start(); |
| 3487 | while (true) { |
| 3488 | const rc = posix.system.fcntl(fd, posix.F.GETFL, @as(usize, 0)); |
| 3489 | switch (posix.errno(rc)) { |
| 3490 | .SUCCESS => { |
| 3491 | syscall.finish(); |
| 3492 | break :fl @intCast(rc); |
| 3493 | }, |
| 3494 | .INTR => { |
| 3495 | try syscall.checkCancel(); |
| 3496 | continue; |
| 3497 | }, |
| 3498 | else => |err| { |
| 3499 | syscall.finish(); |
| 3500 | return posix.unexpectedErrno(err); |
| 3501 | }, |
| 3502 | } |
| 3007 | 3503 | } |
| 3008 | 3504 | }; |
| 3009 | 3505 | |
| 3010 | 3506 | fl_flags |= @as(usize, 1 << @bitOffsetOf(posix.O, "NONBLOCK")); |
| 3011 | 3507 | |
| 3012 | | try current_thread.beginSyscall(); |
| 3508 | const syscall: Syscall = try .start(); |
| 3013 | 3509 | while (true) { |
| 3014 | 3510 | switch (posix.errno(posix.system.fcntl(fd, posix.F.SETFL, fl_flags))) { |
| 3015 | 3511 | .SUCCESS => { |
| 3016 | | current_thread.endSyscall(); |
| 3512 | syscall.finish(); |
| 3017 | 3513 | break; |
| 3018 | 3514 | }, |
| 3019 | 3515 | .INTR => { |
| 3020 | | try current_thread.checkCancel(); |
| 3516 | try syscall.checkCancel(); |
| 3021 | 3517 | continue; |
| 3022 | 3518 | }, |
| 3023 | 3519 | else => |err| { |
| 3024 | | current_thread.endSyscall(); |
| 3520 | syscall.finish(); |
| 3025 | 3521 | return posix.unexpectedErrno(err); |
| 3026 | 3522 | }, |
| 3027 | 3523 | } |
| ... | ... | @@ -3038,14 +3534,14 @@ fn dirOpenFileWindows( |
| 3038 | 3534 | flags: File.OpenFlags, |
| 3039 | 3535 | ) File.OpenError!File { |
| 3040 | 3536 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 3537 | _ = t; |
| 3041 | 3538 | const sub_path_w_array = try windows.sliceToPrefixedFileW(dir.handle, sub_path); |
| 3042 | 3539 | const sub_path_w = sub_path_w_array.span(); |
| 3043 | 3540 | const dir_handle = if (std.fs.path.isAbsoluteWindowsWtf16(sub_path_w)) null else dir.handle; |
| 3044 | | return dirOpenFileWtf16(t, dir_handle, sub_path_w, flags); |
| 3541 | return dirOpenFileWtf16(dir_handle, sub_path_w, flags); |
| 3045 | 3542 | } |
| 3046 | 3543 | |
| 3047 | 3544 | pub fn dirOpenFileWtf16( |
| 3048 | | t: *Threaded, |
| 3049 | 3545 | dir_handle: ?windows.HANDLE, |
| 3050 | 3546 | sub_path_w: [:0]const u16, |
| 3051 | 3547 | flags: File.OpenFlags, |
| ... | ... | @@ -3054,7 +3550,6 @@ pub fn dirOpenFileWtf16( |
| 3054 | 3550 | if (!allow_directory and std.mem.eql(u16, sub_path_w, &.{'.'})) return error.IsDir; |
| 3055 | 3551 | if (!allow_directory and std.mem.eql(u16, sub_path_w, &.{ '.', '.' })) return error.IsDir; |
| 3056 | 3552 | const path_len_bytes = std.math.cast(u16, sub_path_w.len * 2) orelse return error.NameTooLong; |
| 3057 | | const current_thread = Thread.getCurrent(t); |
| 3058 | 3553 | const w = windows; |
| 3059 | 3554 | |
| 3060 | 3555 | var nt_name: w.UNICODE_STRING = .{ |
| ... | ... | @@ -3076,11 +3571,10 @@ pub fn dirOpenFileWtf16( |
| 3076 | 3571 | const max_attempts = 13; |
| 3077 | 3572 | var attempt: u5 = 0; |
| 3078 | 3573 | |
| 3574 | var syscall: Syscall = try .start(); |
| 3079 | 3575 | const handle = while (true) { |
| 3080 | | try current_thread.checkCancel(); |
| 3081 | | |
| 3082 | 3576 | var result: w.HANDLE = undefined; |
| 3083 | | const rc = w.ntdll.NtCreateFile( |
| 3577 | switch (w.ntdll.NtCreateFile( |
| 3084 | 3578 | &result, |
| 3085 | 3579 | .{ |
| 3086 | 3580 | .STANDARD = .{ .SYNCHRONIZE = true }, |
| ... | ... | @@ -3102,49 +3596,59 @@ pub fn dirOpenFileWtf16( |
| 3102 | 3596 | }, |
| 3103 | 3597 | null, |
| 3104 | 3598 | 0, |
| 3105 | | ); |
| 3106 | | switch (rc) { |
| 3107 | | .SUCCESS => break result, |
| 3108 | | .OBJECT_NAME_INVALID => return error.BadPathName, |
| 3109 | | .OBJECT_NAME_NOT_FOUND => return error.FileNotFound, |
| 3110 | | .OBJECT_PATH_NOT_FOUND => return error.FileNotFound, |
| 3111 | | .BAD_NETWORK_PATH => return error.NetworkNotFound, // \\server was not found |
| 3112 | | .BAD_NETWORK_NAME => return error.NetworkNotFound, // \\server was found but \\server\share wasn't |
| 3113 | | .NO_MEDIA_IN_DEVICE => return error.NoDevice, |
| 3114 | | .INVALID_PARAMETER => |err| return w.statusBug(err), |
| 3599 | )) { |
| 3600 | .SUCCESS => { |
| 3601 | syscall.finish(); |
| 3602 | break result; |
| 3603 | }, |
| 3604 | .OBJECT_NAME_INVALID => return syscall.fail(error.BadPathName), |
| 3605 | .OBJECT_NAME_NOT_FOUND => return syscall.fail(error.FileNotFound), |
| 3606 | .OBJECT_PATH_NOT_FOUND => return syscall.fail(error.FileNotFound), |
| 3607 | .BAD_NETWORK_PATH => return syscall.fail(error.NetworkNotFound), // \\server was not found |
| 3608 | .BAD_NETWORK_NAME => return syscall.fail(error.NetworkNotFound), // \\server was found but \\server\share wasn't |
| 3609 | .NO_MEDIA_IN_DEVICE => return syscall.fail(error.NoDevice), |
| 3610 | .INVALID_PARAMETER => |err| return syscall.ntstatusBug(err), |
| 3611 | .CANCELLED => { |
| 3612 | try syscall.checkCancel(); |
| 3613 | continue; |
| 3614 | }, |
| 3115 | 3615 | .SHARING_VIOLATION => { |
| 3116 | 3616 | // This occurs if the file attempting to be opened is a running |
| 3117 | 3617 | // executable. However, there's a kernel bug: the error may be |
| 3118 | 3618 | // incorrectly returned for an indeterminate amount of time |
| 3119 | 3619 | // after an executable file is closed. Here we work around the |
| 3120 | 3620 | // kernel bug with retry attempts. |
| 3621 | syscall.finish(); |
| 3121 | 3622 | if (max_attempts - attempt == 0) return error.SharingViolation; |
| 3122 | 3623 | _ = w.kernel32.SleepEx((@as(u32, 1) << attempt) >> 1, w.TRUE); |
| 3123 | 3624 | attempt += 1; |
| 3625 | syscall = try .start(); |
| 3124 | 3626 | continue; |
| 3125 | 3627 | }, |
| 3126 | | .ACCESS_DENIED => return error.AccessDenied, |
| 3127 | | .PIPE_BUSY => return error.PipeBusy, |
| 3128 | | .PIPE_NOT_AVAILABLE => return error.NoDevice, |
| 3129 | | .OBJECT_PATH_SYNTAX_BAD => |err| return w.statusBug(err), |
| 3130 | | .OBJECT_NAME_COLLISION => return error.PathAlreadyExists, |
| 3131 | | .FILE_IS_A_DIRECTORY => return error.IsDir, |
| 3132 | | .NOT_A_DIRECTORY => return error.NotDir, |
| 3133 | | .USER_MAPPED_FILE => return error.AccessDenied, |
| 3134 | | .INVALID_HANDLE => |err| return w.statusBug(err), |
| 3628 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 3629 | .PIPE_BUSY => return syscall.fail(error.PipeBusy), |
| 3630 | .PIPE_NOT_AVAILABLE => return syscall.fail(error.NoDevice), |
| 3631 | .OBJECT_PATH_SYNTAX_BAD => |err| return syscall.ntstatusBug(err), |
| 3632 | .OBJECT_NAME_COLLISION => return syscall.fail(error.PathAlreadyExists), |
| 3633 | .FILE_IS_A_DIRECTORY => return syscall.fail(error.IsDir), |
| 3634 | .NOT_A_DIRECTORY => return syscall.fail(error.NotDir), |
| 3635 | .USER_MAPPED_FILE => return syscall.fail(error.AccessDenied), |
| 3636 | .INVALID_HANDLE => |err| return syscall.ntstatusBug(err), |
| 3135 | 3637 | .DELETE_PENDING => { |
| 3136 | 3638 | // This error means that there *was* a file in this location on |
| 3137 | 3639 | // the file system, but it was deleted. However, the OS is not |
| 3138 | 3640 | // finished with the deletion operation, and so this CreateFile |
| 3139 | 3641 | // call has failed. Here, we simulate the kernel bug being |
| 3140 | 3642 | // fixed by sleeping and retrying until the error goes away. |
| 3643 | syscall.finish(); |
| 3141 | 3644 | if (max_attempts - attempt == 0) return error.SharingViolation; |
| 3142 | 3645 | _ = w.kernel32.SleepEx((@as(u32, 1) << attempt) >> 1, w.TRUE); |
| 3143 | 3646 | attempt += 1; |
| 3647 | syscall = try .start(); |
| 3144 | 3648 | continue; |
| 3145 | 3649 | }, |
| 3146 | | .VIRUS_INFECTED, .VIRUS_DELETED => return error.AntivirusInterference, |
| 3147 | | else => return w.unexpectedStatus(rc), |
| 3650 | .VIRUS_INFECTED, .VIRUS_DELETED => return syscall.fail(error.AntivirusInterference), |
| 3651 | else => |rc| return syscall.unexpectedNtstatus(rc), |
| 3148 | 3652 | } |
| 3149 | 3653 | }; |
| 3150 | 3654 | errdefer w.CloseHandle(handle); |
| ... | ... | @@ -3154,7 +3658,8 @@ pub fn dirOpenFileWtf16( |
| 3154 | 3658 | .shared => false, |
| 3155 | 3659 | .exclusive => true, |
| 3156 | 3660 | }; |
| 3157 | | const status = w.ntdll.NtLockFile( |
| 3661 | syscall = try .start(); |
| 3662 | while (true) switch (w.ntdll.NtLockFile( |
| 3158 | 3663 | handle, |
| 3159 | 3664 | null, |
| 3160 | 3665 | null, |
| ... | ... | @@ -3165,14 +3670,13 @@ pub fn dirOpenFileWtf16( |
| 3165 | 3670 | null, |
| 3166 | 3671 | @intFromBool(flags.lock_nonblocking), |
| 3167 | 3672 | @intFromBool(exclusive), |
| 3168 | | ); |
| 3169 | | switch (status) { |
| 3170 | | .SUCCESS => {}, |
| 3171 | | .INSUFFICIENT_RESOURCES => return error.SystemResources, |
| 3172 | | .LOCK_NOT_GRANTED => return error.WouldBlock, |
| 3173 | | .ACCESS_VIOLATION => |err| return windows.statusBug(err), // bad io_status_block pointer |
| 3174 | | else => return windows.unexpectedStatus(status), |
| 3175 | | } |
| 3673 | )) { |
| 3674 | .SUCCESS => break syscall.finish(), |
| 3675 | .INSUFFICIENT_RESOURCES => return syscall.fail(error.SystemResources), |
| 3676 | .LOCK_NOT_GRANTED => return syscall.fail(error.WouldBlock), |
| 3677 | .ACCESS_VIOLATION => |err| return syscall.ntstatusBug(err), // bad io_status_block pointer |
| 3678 | else => |status| return syscall.unexpectedNtstatus(status), |
| 3679 | }; |
| 3176 | 3680 | return .{ .handle = handle }; |
| 3177 | 3681 | } |
| 3178 | 3682 | |
| ... | ... | @@ -3184,7 +3688,6 @@ fn dirOpenFileWasi( |
| 3184 | 3688 | ) File.OpenError!File { |
| 3185 | 3689 | if (builtin.link_libc) return dirOpenFilePosix(userdata, dir, sub_path, flags); |
| 3186 | 3690 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 3187 | | const current_thread = Thread.getCurrent(t); |
| 3188 | 3691 | const wasi = std.os.wasi; |
| 3189 | 3692 | var base: std.os.wasi.rights_t = .{}; |
| 3190 | 3693 | // POLL_FD_READWRITE only grants extra rights if the corresponding FD_READ and/or FD_WRITE |
| ... | ... | @@ -3214,19 +3717,19 @@ fn dirOpenFileWasi( |
| 3214 | 3717 | const inheriting: wasi.rights_t = .{}; |
| 3215 | 3718 | const fdflags: wasi.fdflags_t = .{}; |
| 3216 | 3719 | var fd: posix.fd_t = undefined; |
| 3217 | | try current_thread.beginSyscall(); |
| 3720 | const syscall: Syscall = try .start(); |
| 3218 | 3721 | while (true) { |
| 3219 | 3722 | switch (wasi.path_open(dir.handle, lookup_flags, sub_path.ptr, sub_path.len, oflags, base, inheriting, fdflags, &fd)) { |
| 3220 | 3723 | .SUCCESS => { |
| 3221 | | current_thread.endSyscall(); |
| 3724 | syscall.finish(); |
| 3222 | 3725 | break; |
| 3223 | 3726 | }, |
| 3224 | 3727 | .INTR => { |
| 3225 | | try current_thread.checkCancel(); |
| 3728 | try syscall.checkCancel(); |
| 3226 | 3729 | continue; |
| 3227 | 3730 | }, |
| 3228 | 3731 | else => |e| { |
| 3229 | | current_thread.endSyscall(); |
| 3732 | syscall.finish(); |
| 3230 | 3733 | switch (e) { |
| 3231 | 3734 | .FAULT => |err| return errnoBug(err), |
| 3232 | 3735 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -3283,14 +3786,13 @@ fn dirOpenDirPosix( |
| 3283 | 3786 | options: Dir.OpenOptions, |
| 3284 | 3787 | ) Dir.OpenError!Dir { |
| 3285 | 3788 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 3789 | _ = t; |
| 3286 | 3790 | |
| 3287 | 3791 | if (is_windows) { |
| 3288 | 3792 | const sub_path_w = try windows.sliceToPrefixedFileW(dir.handle, sub_path); |
| 3289 | | return dirOpenDirWindows(t, dir, sub_path_w.span(), options); |
| 3793 | return dirOpenDirWindows(dir, sub_path_w.span(), options); |
| 3290 | 3794 | } |
| 3291 | 3795 | |
| 3292 | | const current_thread = Thread.getCurrent(t); |
| 3293 | | |
| 3294 | 3796 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 3295 | 3797 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| 3296 | 3798 | |
| ... | ... | @@ -3311,20 +3813,20 @@ fn dirOpenDirPosix( |
| 3311 | 3813 | if (@hasField(posix.O, "PATH") and !options.iterate) |
| 3312 | 3814 | flags.PATH = true; |
| 3313 | 3815 | |
| 3314 | | try current_thread.beginSyscall(); |
| 3816 | const syscall: Syscall = try .start(); |
| 3315 | 3817 | while (true) { |
| 3316 | 3818 | const rc = openat_sym(dir.handle, sub_path_posix, flags, @as(usize, 0)); |
| 3317 | 3819 | switch (posix.errno(rc)) { |
| 3318 | 3820 | .SUCCESS => { |
| 3319 | | current_thread.endSyscall(); |
| 3821 | syscall.finish(); |
| 3320 | 3822 | return .{ .handle = @intCast(rc) }; |
| 3321 | 3823 | }, |
| 3322 | 3824 | .INTR => { |
| 3323 | | try current_thread.checkCancel(); |
| 3825 | try syscall.checkCancel(); |
| 3324 | 3826 | continue; |
| 3325 | 3827 | }, |
| 3326 | 3828 | else => |e| { |
| 3327 | | current_thread.endSyscall(); |
| 3829 | syscall.finish(); |
| 3328 | 3830 | switch (e) { |
| 3329 | 3831 | .FAULT => |err| return errnoBug(err), |
| 3330 | 3832 | .INVAL => return error.BadPathName, |
| ... | ... | @@ -3356,27 +3858,27 @@ fn dirOpenDirHaiku( |
| 3356 | 3858 | options: Dir.OpenOptions, |
| 3357 | 3859 | ) Dir.OpenError!Dir { |
| 3358 | 3860 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 3359 | | const current_thread = Thread.getCurrent(t); |
| 3861 | _ = t; |
| 3360 | 3862 | |
| 3361 | 3863 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 3362 | 3864 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| 3363 | 3865 | |
| 3364 | 3866 | _ = options; |
| 3365 | 3867 | |
| 3366 | | try current_thread.beginSyscall(); |
| 3868 | const syscall: Syscall = try .start(); |
| 3367 | 3869 | while (true) { |
| 3368 | 3870 | const rc = posix.system._kern_open_dir(dir.handle, sub_path_posix); |
| 3369 | 3871 | if (rc >= 0) { |
| 3370 | | current_thread.endSyscall(); |
| 3872 | syscall.finish(); |
| 3371 | 3873 | return .{ .handle = rc }; |
| 3372 | 3874 | } |
| 3373 | 3875 | switch (@as(posix.E, @enumFromInt(rc))) { |
| 3374 | 3876 | .INTR => { |
| 3375 | | try current_thread.checkCancel(); |
| 3877 | try syscall.checkCancel(); |
| 3376 | 3878 | continue; |
| 3377 | 3879 | }, |
| 3378 | 3880 | else => |e| { |
| 3379 | | current_thread.endSyscall(); |
| 3881 | syscall.finish(); |
| 3380 | 3882 | switch (e) { |
| 3381 | 3883 | .FAULT => |err| return errnoBug(err), |
| 3382 | 3884 | .INVAL => |err| return errnoBug(err), |
| ... | ... | @@ -3400,12 +3902,10 @@ fn dirOpenDirHaiku( |
| 3400 | 3902 | } |
| 3401 | 3903 | |
| 3402 | 3904 | pub fn dirOpenDirWindows( |
| 3403 | | t: *Io.Threaded, |
| 3404 | 3905 | dir: Dir, |
| 3405 | 3906 | sub_path_w: [:0]const u16, |
| 3406 | 3907 | options: Dir.OpenOptions, |
| 3407 | 3908 | ) Dir.OpenError!Dir { |
| 3408 | | const current_thread = Thread.getCurrent(t); |
| 3409 | 3909 | const w = windows; |
| 3410 | 3910 | |
| 3411 | 3911 | const path_len_bytes: u16 = @intCast(sub_path_w.len * 2); |
| ... | ... | @@ -3416,8 +3916,9 @@ pub fn dirOpenDirWindows( |
| 3416 | 3916 | }; |
| 3417 | 3917 | var io_status_block: w.IO_STATUS_BLOCK = undefined; |
| 3418 | 3918 | var result: Dir = .{ .handle = undefined }; |
| 3419 | | try current_thread.checkCancel(); |
| 3420 | | const rc = w.ntdll.NtCreateFile( |
| 3919 | |
| 3920 | const syscall: Syscall = try .start(); |
| 3921 | while (true) switch (w.ntdll.NtCreateFile( |
| 3421 | 3922 | &result.handle, |
| 3422 | 3923 | // TODO remove some of these flags if options.access_sub_paths is false |
| 3423 | 3924 | .{ |
| ... | ... | @@ -3453,21 +3954,26 @@ pub fn dirOpenDirWindows( |
| 3453 | 3954 | }, |
| 3454 | 3955 | null, |
| 3455 | 3956 | 0, |
| 3456 | | ); |
| 3457 | | |
| 3458 | | switch (rc) { |
| 3459 | | .SUCCESS => return result, |
| 3460 | | .OBJECT_NAME_INVALID => return error.BadPathName, |
| 3461 | | .OBJECT_NAME_NOT_FOUND => return error.FileNotFound, |
| 3957 | )) { |
| 3958 | .SUCCESS => { |
| 3959 | syscall.finish(); |
| 3960 | return result; |
| 3961 | }, |
| 3962 | .CANCELLED => { |
| 3963 | try syscall.checkCancel(); |
| 3964 | continue; |
| 3965 | }, |
| 3966 | .OBJECT_NAME_INVALID => return syscall.fail(error.BadPathName), |
| 3967 | .OBJECT_NAME_NOT_FOUND => return syscall.fail(error.FileNotFound), |
| 3462 | 3968 | .OBJECT_NAME_COLLISION => |err| return w.statusBug(err), |
| 3463 | | .OBJECT_PATH_NOT_FOUND => return error.FileNotFound, |
| 3464 | | .NOT_A_DIRECTORY => return error.NotDir, |
| 3969 | .OBJECT_PATH_NOT_FOUND => return syscall.fail(error.FileNotFound), |
| 3970 | .NOT_A_DIRECTORY => return syscall.fail(error.NotDir), |
| 3465 | 3971 | // This can happen if the directory has 'List folder contents' permission set to 'Deny' |
| 3466 | 3972 | // and the directory is trying to be opened for iteration. |
| 3467 | | .ACCESS_DENIED => return error.AccessDenied, |
| 3468 | | .INVALID_PARAMETER => |err| return w.statusBug(err), |
| 3469 | | else => return w.unexpectedStatus(rc), |
| 3470 | | } |
| 3973 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 3974 | .INVALID_PARAMETER => |err| return syscall.ntstatusBug(err), |
| 3975 | else => |rc| return syscall.unexpectedNtstatus(rc), |
| 3976 | }; |
| 3471 | 3977 | } |
| 3472 | 3978 | |
| 3473 | 3979 | fn dirClose(userdata: ?*anyopaque, dirs: []const Dir) void { |
| ... | ... | @@ -3490,7 +3996,7 @@ const dirRead = switch (native_os) { |
| 3490 | 3996 | fn dirReadLinux(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir.Reader.Error!usize { |
| 3491 | 3997 | const linux = std.os.linux; |
| 3492 | 3998 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 3493 | | const current_thread = Thread.getCurrent(t); |
| 3999 | _ = t; |
| 3494 | 4000 | var buffer_index: usize = 0; |
| 3495 | 4001 | while (buffer.len - buffer_index != 0) { |
| 3496 | 4002 | if (dr.end - dr.index == 0) { |
| ... | ... | @@ -3498,26 +4004,26 @@ fn dirReadLinux(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir |
| 3498 | 4004 | // buffered data. |
| 3499 | 4005 | if (buffer_index != 0) break; |
| 3500 | 4006 | if (dr.state == .reset) { |
| 3501 | | posixSeekTo(current_thread, dr.dir.handle, 0) catch |err| switch (err) { |
| 4007 | posixSeekTo(dr.dir.handle, 0) catch |err| switch (err) { |
| 3502 | 4008 | error.Unseekable => return error.Unexpected, |
| 3503 | 4009 | else => |e| return e, |
| 3504 | 4010 | }; |
| 3505 | 4011 | dr.state = .reading; |
| 3506 | 4012 | } |
| 3507 | | try current_thread.beginSyscall(); |
| 4013 | const syscall: Syscall = try .start(); |
| 3508 | 4014 | const n = while (true) { |
| 3509 | 4015 | const rc = linux.getdents64(dr.dir.handle, dr.buffer.ptr, dr.buffer.len); |
| 3510 | 4016 | switch (linux.errno(rc)) { |
| 3511 | 4017 | .SUCCESS => { |
| 3512 | | current_thread.endSyscall(); |
| 4018 | syscall.finish(); |
| 3513 | 4019 | break rc; |
| 3514 | 4020 | }, |
| 3515 | 4021 | .INTR => { |
| 3516 | | try current_thread.checkCancel(); |
| 4022 | try syscall.checkCancel(); |
| 3517 | 4023 | continue; |
| 3518 | 4024 | }, |
| 3519 | 4025 | else => |e| { |
| 3520 | | current_thread.endSyscall(); |
| 4026 | syscall.finish(); |
| 3521 | 4027 | switch (e) { |
| 3522 | 4028 | .BADF => |err| return errnoBug(err), // Dir is invalid or was opened without iteration ability. |
| 3523 | 4029 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -3587,7 +4093,7 @@ fn dirReadLinux(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir |
| 3587 | 4093 | |
| 3588 | 4094 | fn dirReadDarwin(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir.Reader.Error!usize { |
| 3589 | 4095 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 3590 | | const current_thread = Thread.getCurrent(t); |
| 4096 | _ = t; |
| 3591 | 4097 | const Header = extern struct { |
| 3592 | 4098 | seek: i64, |
| 3593 | 4099 | }; |
| ... | ... | @@ -3606,27 +4112,27 @@ fn dirReadDarwin(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Di |
| 3606 | 4112 | // buffered data. |
| 3607 | 4113 | if (buffer_index != 0) break; |
| 3608 | 4114 | if (dr.state == .reset) { |
| 3609 | | posixSeekTo(current_thread, dr.dir.handle, 0) catch |err| switch (err) { |
| 4115 | posixSeekTo(dr.dir.handle, 0) catch |err| switch (err) { |
| 3610 | 4116 | error.Unseekable => return error.Unexpected, |
| 3611 | 4117 | else => |e| return e, |
| 3612 | 4118 | }; |
| 3613 | 4119 | dr.state = .reading; |
| 3614 | 4120 | } |
| 3615 | 4121 | const dents_buffer = dr.buffer[header_end..]; |
| 3616 | | try current_thread.beginSyscall(); |
| 4122 | const syscall: Syscall = try .start(); |
| 3617 | 4123 | const n: usize = while (true) { |
| 3618 | 4124 | const rc = posix.system.getdirentries(dr.dir.handle, dents_buffer.ptr, dents_buffer.len, &header.seek); |
| 3619 | 4125 | switch (posix.errno(rc)) { |
| 3620 | 4126 | .SUCCESS => { |
| 3621 | | current_thread.endSyscall(); |
| 4127 | syscall.finish(); |
| 3622 | 4128 | break @intCast(rc); |
| 3623 | 4129 | }, |
| 3624 | 4130 | .INTR => { |
| 3625 | | try current_thread.checkCancel(); |
| 4131 | try syscall.checkCancel(); |
| 3626 | 4132 | continue; |
| 3627 | 4133 | }, |
| 3628 | 4134 | else => |e| { |
| 3629 | | current_thread.endSyscall(); |
| 4135 | syscall.finish(); |
| 3630 | 4136 | switch (e) { |
| 3631 | 4137 | .BADF => |err| return errnoBug(err), // Dir is invalid or was opened without iteration ability. |
| 3632 | 4138 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -3675,7 +4181,7 @@ fn dirReadDarwin(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Di |
| 3675 | 4181 | |
| 3676 | 4182 | fn dirReadBsd(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir.Reader.Error!usize { |
| 3677 | 4183 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 3678 | | const current_thread = Thread.getCurrent(t); |
| 4184 | _ = t; |
| 3679 | 4185 | var buffer_index: usize = 0; |
| 3680 | 4186 | while (buffer.len - buffer_index != 0) { |
| 3681 | 4187 | if (dr.end - dr.index == 0) { |
| ... | ... | @@ -3683,26 +4189,26 @@ fn dirReadBsd(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir.R |
| 3683 | 4189 | // buffered data. |
| 3684 | 4190 | if (buffer_index != 0) break; |
| 3685 | 4191 | if (dr.state == .reset) { |
| 3686 | | posixSeekTo(current_thread, dr.dir.handle, 0) catch |err| switch (err) { |
| 4192 | posixSeekTo(dr.dir.handle, 0) catch |err| switch (err) { |
| 3687 | 4193 | error.Unseekable => return error.Unexpected, |
| 3688 | 4194 | else => |e| return e, |
| 3689 | 4195 | }; |
| 3690 | 4196 | dr.state = .reading; |
| 3691 | 4197 | } |
| 3692 | | try current_thread.beginSyscall(); |
| 4198 | const syscall: Syscall = try .start(); |
| 3693 | 4199 | const n: usize = while (true) { |
| 3694 | 4200 | const rc = posix.system.getdents(dr.dir.handle, dr.buffer.ptr, dr.buffer.len); |
| 3695 | 4201 | switch (posix.errno(rc)) { |
| 3696 | 4202 | .SUCCESS => { |
| 3697 | | current_thread.endSyscall(); |
| 4203 | syscall.finish(); |
| 3698 | 4204 | break @intCast(rc); |
| 3699 | 4205 | }, |
| 3700 | 4206 | .INTR => { |
| 3701 | | try current_thread.checkCancel(); |
| 4207 | try syscall.checkCancel(); |
| 3702 | 4208 | continue; |
| 3703 | 4209 | }, |
| 3704 | 4210 | else => |e| { |
| 3705 | | current_thread.endSyscall(); |
| 4211 | syscall.finish(); |
| 3706 | 4212 | switch (e) { |
| 3707 | 4213 | .BADF => |err| return errnoBug(err), // Dir is invalid or was opened without iteration ability |
| 3708 | 4214 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -3769,7 +4275,7 @@ fn dirReadBsd(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir.R |
| 3769 | 4275 | |
| 3770 | 4276 | fn dirReadIllumos(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir.Reader.Error!usize { |
| 3771 | 4277 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 3772 | | const current_thread = Thread.getCurrent(t); |
| 4278 | _ = t; |
| 3773 | 4279 | var buffer_index: usize = 0; |
| 3774 | 4280 | while (buffer.len - buffer_index != 0) { |
| 3775 | 4281 | if (dr.end - dr.index == 0) { |
| ... | ... | @@ -3777,26 +4283,26 @@ fn dirReadIllumos(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) D |
| 3777 | 4283 | // buffered data. |
| 3778 | 4284 | if (buffer_index != 0) break; |
| 3779 | 4285 | if (dr.state == .reset) { |
| 3780 | | posixSeekTo(current_thread, dr.dir.handle, 0) catch |err| switch (err) { |
| 4286 | posixSeekTo(dr.dir.handle, 0) catch |err| switch (err) { |
| 3781 | 4287 | error.Unseekable => return error.Unexpected, |
| 3782 | 4288 | else => |e| return e, |
| 3783 | 4289 | }; |
| 3784 | 4290 | dr.state = .reading; |
| 3785 | 4291 | } |
| 3786 | | try current_thread.beginSyscall(); |
| 4292 | const syscall: Syscall = try .start(); |
| 3787 | 4293 | const n: usize = while (true) { |
| 3788 | 4294 | const rc = posix.system.getdents(dr.dir.handle, dr.buffer.ptr, dr.buffer.len); |
| 3789 | 4295 | switch (posix.errno(rc)) { |
| 3790 | 4296 | .SUCCESS => { |
| 3791 | | current_thread.endSyscall(); |
| 4297 | syscall.finish(); |
| 3792 | 4298 | break rc; |
| 3793 | 4299 | }, |
| 3794 | 4300 | .INTR => { |
| 3795 | | try current_thread.checkCancel(); |
| 4301 | try syscall.checkCancel(); |
| 3796 | 4302 | continue; |
| 3797 | 4303 | }, |
| 3798 | 4304 | else => |e| { |
| 3799 | | current_thread.endSyscall(); |
| 4305 | syscall.finish(); |
| 3800 | 4306 | switch (e) { |
| 3801 | 4307 | .BADF => |err| return errnoBug(err), // Dir is invalid or was opened without iteration ability |
| 3802 | 4308 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -3822,7 +4328,7 @@ fn dirReadIllumos(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) D |
| 3822 | 4328 | if (std.mem.eql(u8, name, ".") or std.mem.eql(u8, name, "..")) continue; |
| 3823 | 4329 | |
| 3824 | 4330 | // illumos dirent doesn't expose type, so we have to call stat to get it. |
| 3825 | | const stat = try posixStatFile(current_thread, dr.dir.handle, name, posix.AT.SYMLINK_NOFOLLOW); |
| 4331 | const stat = try posixStatFile(dr.dir.handle, name, posix.AT.SYMLINK_NOFOLLOW); |
| 3826 | 4332 | |
| 3827 | 4333 | buffer[buffer_index] = .{ |
| 3828 | 4334 | .name = name, |
| ... | ... | @@ -3843,7 +4349,7 @@ fn dirReadHaiku(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir |
| 3843 | 4349 | |
| 3844 | 4350 | fn dirReadWindows(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir.Reader.Error!usize { |
| 3845 | 4351 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 3846 | | const current_thread = Thread.getCurrent(t); |
| 4352 | _ = t; |
| 3847 | 4353 | const w = windows; |
| 3848 | 4354 | |
| 3849 | 4355 | // We want to be able to use the `dr.buffer` for both the NtQueryDirectoryFile call (which |
| ... | ... | @@ -3907,9 +4413,9 @@ fn dirReadWindows(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) D |
| 3907 | 4413 | // buffered data. |
| 3908 | 4414 | if (buffer_index != 0) break; |
| 3909 | 4415 | |
| 3910 | | try current_thread.checkCancel(); |
| 3911 | 4416 | var io_status_block: w.IO_STATUS_BLOCK = undefined; |
| 3912 | | const rc = w.ntdll.NtQueryDirectoryFile( |
| 4417 | const syscall: Syscall = try .start(); |
| 4418 | const rc = while (true) switch (w.ntdll.NtQueryDirectoryFile( |
| 3913 | 4419 | dr.dir.handle, |
| 3914 | 4420 | null, |
| 3915 | 4421 | null, |
| ... | ... | @@ -3921,7 +4427,16 @@ fn dirReadWindows(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) D |
| 3921 | 4427 | w.FALSE, |
| 3922 | 4428 | null, |
| 3923 | 4429 | @intFromBool(dr.state == .reset), |
| 3924 | | ); |
| 4430 | )) { |
| 4431 | .CANCELLED => { |
| 4432 | try syscall.checkCancel(); |
| 4433 | continue; |
| 4434 | }, |
| 4435 | else => |rc| { |
| 4436 | syscall.finish(); |
| 4437 | break rc; |
| 4438 | }, |
| 4439 | }; |
| 3925 | 4440 | dr.state = .reading; |
| 3926 | 4441 | if (io_status_block.Information == 0) { |
| 3927 | 4442 | dr.state = .finished; |
| ... | ... | @@ -3993,7 +4508,7 @@ fn dirReadWasi(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir. |
| 3993 | 4508 | // complexity here. |
| 3994 | 4509 | const wasi = std.os.wasi; |
| 3995 | 4510 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 3996 | | const current_thread = Thread.getCurrent(t); |
| 4511 | _ = t; |
| 3997 | 4512 | const Header = extern struct { |
| 3998 | 4513 | cookie: u64, |
| 3999 | 4514 | }; |
| ... | ... | @@ -4019,19 +4534,19 @@ fn dirReadWasi(userdata: ?*anyopaque, dr: *Dir.Reader, buffer: []Dir.Entry) Dir. |
| 4019 | 4534 | } |
| 4020 | 4535 | const dents_buffer = dr.buffer[header_end..]; |
| 4021 | 4536 | var n: usize = undefined; |
| 4022 | | try current_thread.beginSyscall(); |
| 4537 | const syscall: Syscall = try .start(); |
| 4023 | 4538 | while (true) { |
| 4024 | 4539 | switch (wasi.fd_readdir(dr.dir.handle, dents_buffer.ptr, dents_buffer.len, header.cookie, &n)) { |
| 4025 | 4540 | .SUCCESS => { |
| 4026 | | current_thread.endSyscall(); |
| 4541 | syscall.finish(); |
| 4027 | 4542 | break; |
| 4028 | 4543 | }, |
| 4029 | 4544 | .INTR => { |
| 4030 | | try current_thread.checkCancel(); |
| 4545 | try syscall.checkCancel(); |
| 4031 | 4546 | continue; |
| 4032 | 4547 | }, |
| 4033 | 4548 | else => |e| { |
| 4034 | | current_thread.endSyscall(); |
| 4549 | syscall.finish(); |
| 4035 | 4550 | switch (e) { |
| 4036 | 4551 | .BADF => |err| return errnoBug(err), // Dir is invalid or was opened without iteration ability. |
| 4037 | 4552 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -4107,34 +4622,42 @@ const dirRealPathFile = switch (native_os) { |
| 4107 | 4622 | |
| 4108 | 4623 | fn dirRealPathFileWindows(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, out_buffer: []u8) Dir.RealPathFileError!usize { |
| 4109 | 4624 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4110 | | const current_thread = Thread.getCurrent(t); |
| 4111 | | |
| 4112 | | try current_thread.checkCancel(); |
| 4625 | _ = t; |
| 4113 | 4626 | |
| 4114 | 4627 | var path_name_w = try windows.sliceToPrefixedFileW(dir.handle, sub_path); |
| 4115 | 4628 | |
| 4116 | | const h_file = blk: { |
| 4117 | | const res = windows.OpenFile(path_name_w.span(), .{ |
| 4118 | | .dir = dir.handle, |
| 4119 | | .access_mask = .{ |
| 4120 | | .GENERIC = .{ .READ = true }, |
| 4121 | | .STANDARD = .{ .SYNCHRONIZE = true }, |
| 4122 | | }, |
| 4123 | | .creation = .OPEN, |
| 4124 | | .filter = .any, |
| 4125 | | }) catch |err| switch (err) { |
| 4126 | | error.WouldBlock => unreachable, |
| 4127 | | else => |e| return e, |
| 4128 | | }; |
| 4129 | | break :blk res; |
| 4629 | const h_file = handle: { |
| 4630 | const syscall: Syscall = try .start(); |
| 4631 | while (true) { |
| 4632 | if (windows.OpenFile(path_name_w.span(), .{ |
| 4633 | .dir = dir.handle, |
| 4634 | .access_mask = .{ |
| 4635 | .GENERIC = .{ .READ = true }, |
| 4636 | .STANDARD = .{ .SYNCHRONIZE = true }, |
| 4637 | }, |
| 4638 | .creation = .OPEN, |
| 4639 | .filter = .any, |
| 4640 | })) |handle| { |
| 4641 | syscall.finish(); |
| 4642 | break :handle handle; |
| 4643 | } else |err| switch (err) { |
| 4644 | error.WouldBlock => unreachable, |
| 4645 | error.OperationCanceled => { |
| 4646 | try syscall.checkCancel(); |
| 4647 | continue; |
| 4648 | }, |
| 4649 | else => |e| return syscall.fail(e), |
| 4650 | } |
| 4651 | } |
| 4130 | 4652 | }; |
| 4131 | 4653 | defer windows.CloseHandle(h_file); |
| 4132 | | return realPathWindows(current_thread, h_file, out_buffer); |
| 4654 | return realPathWindows(h_file, out_buffer); |
| 4133 | 4655 | } |
| 4134 | 4656 | |
| 4135 | | fn realPathWindows(current_thread: *Thread, h_file: windows.HANDLE, out_buffer: []u8) File.RealPathError!usize { |
| 4136 | | _ = current_thread; // TODO move GetFinalPathNameByHandle logic into std.Io.Threaded and add cancel checks |
| 4657 | fn realPathWindows(h_file: windows.HANDLE, out_buffer: []u8) File.RealPathError!usize { |
| 4137 | 4658 | var wide_buf: [windows.PATH_MAX_WIDE]u16 = undefined; |
| 4659 | // TODO move GetFinalPathNameByHandle logic into std.Io.Threaded and add cancel checks |
| 4660 | try Thread.checkCancel(); |
| 4138 | 4661 | const wide_slice = try windows.GetFinalPathNameByHandle(h_file, .{}, &wide_buf); |
| 4139 | 4662 | |
| 4140 | 4663 | const len = std.unicode.calcWtf8Len(wide_slice); |
| ... | ... | @@ -4148,26 +4671,26 @@ fn dirRealPathFilePosix(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, o |
| 4148 | 4671 | if (native_os == .wasi) return error.OperationUnsupported; |
| 4149 | 4672 | |
| 4150 | 4673 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4151 | | const current_thread = Thread.getCurrent(t); |
| 4674 | _ = t; |
| 4152 | 4675 | |
| 4153 | 4676 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 4154 | 4677 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| 4155 | 4678 | |
| 4156 | 4679 | if (builtin.link_libc and dir.handle == posix.AT.FDCWD) { |
| 4157 | 4680 | if (out_buffer.len < posix.PATH_MAX) return error.NameTooLong; |
| 4158 | | try current_thread.beginSyscall(); |
| 4681 | const syscall: Syscall = try .start(); |
| 4159 | 4682 | while (true) { |
| 4160 | 4683 | if (std.c.realpath(sub_path_posix, out_buffer.ptr)) |redundant_pointer| { |
| 4161 | | current_thread.endSyscall(); |
| 4684 | syscall.finish(); |
| 4162 | 4685 | assert(redundant_pointer == out_buffer.ptr); |
| 4163 | 4686 | return std.mem.indexOfScalar(u8, out_buffer, 0) orelse out_buffer.len; |
| 4164 | 4687 | } |
| 4165 | 4688 | const err: posix.E = @enumFromInt(std.c._errno().*); |
| 4166 | 4689 | if (err == .INTR) { |
| 4167 | | try current_thread.checkCancel(); |
| 4690 | try syscall.checkCancel(); |
| 4168 | 4691 | continue; |
| 4169 | 4692 | } |
| 4170 | | current_thread.endSyscall(); |
| 4693 | syscall.finish(); |
| 4171 | 4694 | switch (err) { |
| 4172 | 4695 | .INVAL => return errnoBug(err), |
| 4173 | 4696 | .BADF => return errnoBug(err), |
| ... | ... | @@ -4191,20 +4714,20 @@ fn dirRealPathFilePosix(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, o |
| 4191 | 4714 | |
| 4192 | 4715 | const mode: posix.mode_t = 0; |
| 4193 | 4716 | |
| 4194 | | try current_thread.beginSyscall(); |
| 4717 | const syscall: Syscall = try .start(); |
| 4195 | 4718 | const fd: posix.fd_t = while (true) { |
| 4196 | 4719 | const rc = openat_sym(dir.handle, sub_path_posix, flags, mode); |
| 4197 | 4720 | switch (posix.errno(rc)) { |
| 4198 | 4721 | .SUCCESS => { |
| 4199 | | current_thread.endSyscall(); |
| 4722 | syscall.finish(); |
| 4200 | 4723 | break @intCast(rc); |
| 4201 | 4724 | }, |
| 4202 | 4725 | .INTR => { |
| 4203 | | try current_thread.checkCancel(); |
| 4726 | try syscall.checkCancel(); |
| 4204 | 4727 | continue; |
| 4205 | 4728 | }, |
| 4206 | 4729 | else => |e| { |
| 4207 | | current_thread.endSyscall(); |
| 4730 | syscall.finish(); |
| 4208 | 4731 | switch (e) { |
| 4209 | 4732 | .FAULT => |err| return errnoBug(err), |
| 4210 | 4733 | .INVAL => return error.BadPathName, |
| ... | ... | @@ -4234,7 +4757,7 @@ fn dirRealPathFilePosix(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, o |
| 4234 | 4757 | } |
| 4235 | 4758 | }; |
| 4236 | 4759 | defer posix.close(fd); |
| 4237 | | return realPathPosix(current_thread, fd, out_buffer); |
| 4760 | return realPathPosix(fd, out_buffer); |
| 4238 | 4761 | } |
| 4239 | 4762 | |
| 4240 | 4763 | const dirRealPath = switch (native_os) { |
| ... | ... | @@ -4245,14 +4768,14 @@ const dirRealPath = switch (native_os) { |
| 4245 | 4768 | fn dirRealPathPosix(userdata: ?*anyopaque, dir: Dir, out_buffer: []u8) Dir.RealPathError!usize { |
| 4246 | 4769 | if (native_os == .wasi) return error.OperationUnsupported; |
| 4247 | 4770 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4248 | | const current_thread = Thread.getCurrent(t); |
| 4249 | | return realPathPosix(current_thread, dir.handle, out_buffer); |
| 4771 | _ = t; |
| 4772 | return realPathPosix(dir.handle, out_buffer); |
| 4250 | 4773 | } |
| 4251 | 4774 | |
| 4252 | 4775 | fn dirRealPathWindows(userdata: ?*anyopaque, dir: Dir, out_buffer: []u8) Dir.RealPathError!usize { |
| 4253 | 4776 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4254 | | const current_thread = Thread.getCurrent(t); |
| 4255 | | return realPathWindows(current_thread, dir.handle, out_buffer); |
| 4777 | _ = t; |
| 4778 | return realPathWindows(dir.handle, out_buffer); |
| 4256 | 4779 | } |
| 4257 | 4780 | |
| 4258 | 4781 | const fileRealPath = switch (native_os) { |
| ... | ... | @@ -4263,35 +4786,35 @@ const fileRealPath = switch (native_os) { |
| 4263 | 4786 | fn fileRealPathWindows(userdata: ?*anyopaque, file: File, out_buffer: []u8) File.RealPathError!usize { |
| 4264 | 4787 | if (native_os == .wasi) return error.OperationUnsupported; |
| 4265 | 4788 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4266 | | const current_thread = Thread.getCurrent(t); |
| 4267 | | return realPathWindows(current_thread, file.handle, out_buffer); |
| 4789 | _ = t; |
| 4790 | return realPathWindows(file.handle, out_buffer); |
| 4268 | 4791 | } |
| 4269 | 4792 | |
| 4270 | 4793 | fn fileRealPathPosix(userdata: ?*anyopaque, file: File, out_buffer: []u8) File.RealPathError!usize { |
| 4271 | 4794 | if (native_os == .wasi) return error.OperationUnsupported; |
| 4272 | 4795 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4273 | | const current_thread = Thread.getCurrent(t); |
| 4274 | | return realPathPosix(current_thread, file.handle, out_buffer); |
| 4796 | _ = t; |
| 4797 | return realPathPosix(file.handle, out_buffer); |
| 4275 | 4798 | } |
| 4276 | 4799 | |
| 4277 | | fn realPathPosix(current_thread: *Thread, fd: posix.fd_t, out_buffer: []u8) File.RealPathError!usize { |
| 4800 | fn realPathPosix(fd: posix.fd_t, out_buffer: []u8) File.RealPathError!usize { |
| 4278 | 4801 | switch (native_os) { |
| 4279 | 4802 | .netbsd, .dragonfly, .driverkit, .ios, .maccatalyst, .macos, .tvos, .visionos, .watchos => { |
| 4280 | 4803 | var sufficient_buffer: [posix.PATH_MAX]u8 = undefined; |
| 4281 | 4804 | @memset(&sufficient_buffer, 0); |
| 4282 | | try current_thread.beginSyscall(); |
| 4805 | const syscall: Syscall = try .start(); |
| 4283 | 4806 | while (true) { |
| 4284 | 4807 | switch (posix.errno(posix.system.fcntl(fd, posix.F.GETPATH, &sufficient_buffer))) { |
| 4285 | 4808 | .SUCCESS => { |
| 4286 | | current_thread.endSyscall(); |
| 4809 | syscall.finish(); |
| 4287 | 4810 | break; |
| 4288 | 4811 | }, |
| 4289 | 4812 | .INTR => { |
| 4290 | | try current_thread.checkCancel(); |
| 4813 | try syscall.checkCancel(); |
| 4291 | 4814 | continue; |
| 4292 | 4815 | }, |
| 4293 | 4816 | else => |e| { |
| 4294 | | current_thread.endSyscall(); |
| 4817 | syscall.finish(); |
| 4295 | 4818 | switch (e) { |
| 4296 | 4819 | .ACCES => return error.AccessDenied, |
| 4297 | 4820 | .BADF => return error.FileNotFound, |
| ... | ... | @@ -4313,21 +4836,21 @@ fn realPathPosix(current_thread: *Thread, fd: posix.fd_t, out_buffer: []u8) File |
| 4313 | 4836 | var procfs_buf: ["/proc/self/path/-2147483648\x00".len]u8 = undefined; |
| 4314 | 4837 | const template = if (native_os == .illumos) "/proc/self/path/{d}" else "/proc/self/fd/{d}"; |
| 4315 | 4838 | const proc_path = std.fmt.bufPrintSentinel(&procfs_buf, template, .{fd}, 0) catch unreachable; |
| 4316 | | try current_thread.beginSyscall(); |
| 4839 | const syscall: Syscall = try .start(); |
| 4317 | 4840 | while (true) { |
| 4318 | 4841 | const rc = posix.system.readlink(proc_path, out_buffer.ptr, out_buffer.len); |
| 4319 | 4842 | switch (posix.errno(rc)) { |
| 4320 | 4843 | .SUCCESS => { |
| 4321 | | current_thread.endSyscall(); |
| 4844 | syscall.finish(); |
| 4322 | 4845 | const len: usize = @bitCast(rc); |
| 4323 | 4846 | return len; |
| 4324 | 4847 | }, |
| 4325 | 4848 | .INTR => { |
| 4326 | | try current_thread.checkCancel(); |
| 4849 | try syscall.checkCancel(); |
| 4327 | 4850 | continue; |
| 4328 | 4851 | }, |
| 4329 | 4852 | else => |e| { |
| 4330 | | current_thread.endSyscall(); |
| 4853 | syscall.finish(); |
| 4331 | 4854 | switch (e) { |
| 4332 | 4855 | .ACCES => return error.AccessDenied, |
| 4333 | 4856 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -4347,23 +4870,23 @@ fn realPathPosix(current_thread: *Thread, fd: posix.fd_t, out_buffer: []u8) File |
| 4347 | 4870 | .freebsd => { |
| 4348 | 4871 | var k_file: std.c.kinfo_file = undefined; |
| 4349 | 4872 | k_file.structsize = std.c.KINFO_FILE_SIZE; |
| 4350 | | try current_thread.beginSyscall(); |
| 4873 | const syscall: Syscall = try .start(); |
| 4351 | 4874 | while (true) { |
| 4352 | 4875 | switch (posix.errno(std.c.fcntl(fd, std.c.F.KINFO, @intFromPtr(&k_file)))) { |
| 4353 | 4876 | .SUCCESS => { |
| 4354 | | current_thread.endSyscall(); |
| 4877 | syscall.finish(); |
| 4355 | 4878 | break; |
| 4356 | 4879 | }, |
| 4357 | 4880 | .INTR => { |
| 4358 | | try current_thread.checkCancel(); |
| 4881 | try syscall.checkCancel(); |
| 4359 | 4882 | continue; |
| 4360 | 4883 | }, |
| 4361 | 4884 | .BADF => { |
| 4362 | | current_thread.endSyscall(); |
| 4885 | syscall.finish(); |
| 4363 | 4886 | return error.FileNotFound; |
| 4364 | 4887 | }, |
| 4365 | 4888 | else => |err| { |
| 4366 | | current_thread.endSyscall(); |
| 4889 | syscall.finish(); |
| 4367 | 4890 | return posix.unexpectedErrno(err); |
| 4368 | 4891 | }, |
| 4369 | 4892 | } |
| ... | ... | @@ -4394,21 +4917,21 @@ fn dirDeleteFileWindows(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8) D |
| 4394 | 4917 | fn dirDeleteFileWasi(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8) Dir.DeleteFileError!void { |
| 4395 | 4918 | if (builtin.link_libc) return dirDeleteFilePosix(userdata, dir, sub_path); |
| 4396 | 4919 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4397 | | const current_thread = Thread.getCurrent(t); |
| 4398 | | try current_thread.beginSyscall(); |
| 4920 | _ = t; |
| 4921 | const syscall: Syscall = try .start(); |
| 4399 | 4922 | while (true) { |
| 4400 | 4923 | const res = std.os.wasi.path_unlink_file(dir.handle, sub_path.ptr, sub_path.len); |
| 4401 | 4924 | switch (res) { |
| 4402 | 4925 | .SUCCESS => { |
| 4403 | | current_thread.endSyscall(); |
| 4926 | syscall.finish(); |
| 4404 | 4927 | return; |
| 4405 | 4928 | }, |
| 4406 | 4929 | .INTR => { |
| 4407 | | try current_thread.checkCancel(); |
| 4930 | try syscall.checkCancel(); |
| 4408 | 4931 | continue; |
| 4409 | 4932 | }, |
| 4410 | 4933 | else => |e| { |
| 4411 | | current_thread.endSyscall(); |
| 4934 | syscall.finish(); |
| 4412 | 4935 | switch (e) { |
| 4413 | 4936 | .ACCES => return error.AccessDenied, |
| 4414 | 4937 | .PERM => return error.PermissionDenied, |
| ... | ... | @@ -4435,20 +4958,20 @@ fn dirDeleteFileWasi(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8) Dir. |
| 4435 | 4958 | |
| 4436 | 4959 | fn dirDeleteFilePosix(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8) Dir.DeleteFileError!void { |
| 4437 | 4960 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4438 | | const current_thread = Thread.getCurrent(t); |
| 4961 | _ = t; |
| 4439 | 4962 | |
| 4440 | 4963 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 4441 | 4964 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| 4442 | 4965 | |
| 4443 | | try current_thread.beginSyscall(); |
| 4966 | const syscall: Syscall = try .start(); |
| 4444 | 4967 | while (true) { |
| 4445 | 4968 | switch (posix.errno(posix.system.unlinkat(dir.handle, sub_path_posix, 0))) { |
| 4446 | 4969 | .SUCCESS => { |
| 4447 | | current_thread.endSyscall(); |
| 4970 | syscall.finish(); |
| 4448 | 4971 | return; |
| 4449 | 4972 | }, |
| 4450 | 4973 | .INTR => { |
| 4451 | | try current_thread.checkCancel(); |
| 4974 | try syscall.checkCancel(); |
| 4452 | 4975 | continue; |
| 4453 | 4976 | }, |
| 4454 | 4977 | // Some systems return permission errors when trying to delete a |
| ... | ... | @@ -4460,15 +4983,15 @@ fn dirDeleteFilePosix(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8) Dir |
| 4460 | 4983 | // Don't follow symlinks to match unlinkat (which acts on symlinks rather than follows them). |
| 4461 | 4984 | var st = std.mem.zeroes(posix.Stat); |
| 4462 | 4985 | while (true) { |
| 4463 | | try current_thread.checkCancel(); |
| 4986 | try syscall.checkCancel(); |
| 4464 | 4987 | switch (posix.errno(fstatat_sym(dir.handle, sub_path_posix, &st, posix.AT.SYMLINK_NOFOLLOW))) { |
| 4465 | 4988 | .SUCCESS => { |
| 4466 | | current_thread.endSyscall(); |
| 4989 | syscall.finish(); |
| 4467 | 4990 | break; |
| 4468 | 4991 | }, |
| 4469 | 4992 | .INTR => continue, |
| 4470 | 4993 | else => { |
| 4471 | | current_thread.endSyscall(); |
| 4994 | syscall.finish(); |
| 4472 | 4995 | return error.PermissionDenied; |
| 4473 | 4996 | }, |
| 4474 | 4997 | } |
| ... | ... | @@ -4480,12 +5003,12 @@ fn dirDeleteFilePosix(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8) Dir |
| 4480 | 5003 | return error.PermissionDenied; |
| 4481 | 5004 | }, |
| 4482 | 5005 | else => { |
| 4483 | | current_thread.endSyscall(); |
| 5006 | syscall.finish(); |
| 4484 | 5007 | return error.PermissionDenied; |
| 4485 | 5008 | }, |
| 4486 | 5009 | }, |
| 4487 | 5010 | else => |e| { |
| 4488 | | current_thread.endSyscall(); |
| 5011 | syscall.finish(); |
| 4489 | 5012 | switch (e) { |
| 4490 | 5013 | .ACCES => return error.AccessDenied, |
| 4491 | 5014 | .BUSY => return error.FileBusy, |
| ... | ... | @@ -4525,74 +5048,74 @@ fn dirDeleteDirWindows(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8) Di |
| 4525 | 5048 | |
| 4526 | 5049 | fn dirDeleteWindows(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, remove_dir: bool) (Dir.DeleteDirError || Dir.DeleteFileError)!void { |
| 4527 | 5050 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4528 | | const current_thread = Thread.getCurrent(t); |
| 5051 | _ = t; |
| 4529 | 5052 | const w = windows; |
| 4530 | 5053 | |
| 4531 | | try current_thread.checkCancel(); |
| 4532 | | |
| 4533 | 5054 | const sub_path_w_buf = try w.sliceToPrefixedFileW(dir.handle, sub_path); |
| 4534 | 5055 | const sub_path_w = sub_path_w_buf.span(); |
| 4535 | 5056 | |
| 4536 | 5057 | const path_len_bytes = @as(u16, @intCast(sub_path_w.len * 2)); |
| 4537 | 5058 | var nt_name: w.UNICODE_STRING = .{ |
| 4538 | 5059 | .Length = path_len_bytes, |
| 4539 | | .MaximumLength = path_len_bytes, |
| 4540 | | // The Windows API makes this mutable, but it will not mutate here. |
| 4541 | | .Buffer = @constCast(sub_path_w.ptr), |
| 4542 | | }; |
| 4543 | | |
| 4544 | | if (sub_path_w[0] == '.' and sub_path_w[1] == 0) { |
| 4545 | | // Windows does not recognize this, but it does work with empty string. |
| 4546 | | nt_name.Length = 0; |
| 4547 | | } |
| 4548 | | if (sub_path_w[0] == '.' and sub_path_w[1] == '.' and sub_path_w[2] == 0) { |
| 4549 | | // Can't remove the parent directory with an open handle. |
| 4550 | | return error.FileBusy; |
| 4551 | | } |
| 4552 | | |
| 4553 | | var io_status_block: w.IO_STATUS_BLOCK = undefined; |
| 4554 | | var tmp_handle: w.HANDLE = undefined; |
| 4555 | | var rc = w.ntdll.NtCreateFile( |
| 4556 | | &tmp_handle, |
| 4557 | | .{ .STANDARD = .{ |
| 4558 | | .RIGHTS = .{ .DELETE = true }, |
| 4559 | | .SYNCHRONIZE = true, |
| 4560 | | } }, |
| 4561 | | &.{ |
| 4562 | | .Length = @sizeOf(w.OBJECT_ATTRIBUTES), |
| 4563 | | .RootDirectory = if (std.fs.path.isAbsoluteWindowsWtf16(sub_path_w)) null else dir.handle, |
| 4564 | | .Attributes = .{}, |
| 4565 | | .ObjectName = &nt_name, |
| 4566 | | .SecurityDescriptor = null, |
| 4567 | | .SecurityQualityOfService = null, |
| 4568 | | }, |
| 4569 | | &io_status_block, |
| 4570 | | null, |
| 4571 | | .{}, |
| 4572 | | .VALID_FLAGS, |
| 4573 | | .OPEN, |
| 4574 | | .{ |
| 4575 | | .DIRECTORY_FILE = remove_dir, |
| 4576 | | .NON_DIRECTORY_FILE = !remove_dir, |
| 4577 | | .OPEN_REPARSE_POINT = true, // would we ever want to delete the target instead? |
| 4578 | | }, |
| 4579 | | null, |
| 4580 | | 0, |
| 4581 | | ); |
| 4582 | | switch (rc) { |
| 4583 | | .SUCCESS => {}, |
| 4584 | | .OBJECT_NAME_INVALID => |err| return w.statusBug(err), |
| 4585 | | .OBJECT_NAME_NOT_FOUND => return error.FileNotFound, |
| 4586 | | .OBJECT_PATH_NOT_FOUND => return error.FileNotFound, |
| 4587 | | .BAD_NETWORK_PATH => return error.NetworkNotFound, // \\server was not found |
| 4588 | | .BAD_NETWORK_NAME => return error.NetworkNotFound, // \\server was found but \\server\share wasn't |
| 4589 | | .INVALID_PARAMETER => |err| return w.statusBug(err), |
| 4590 | | .FILE_IS_A_DIRECTORY => return error.IsDir, |
| 4591 | | .NOT_A_DIRECTORY => return error.NotDir, |
| 4592 | | .SHARING_VIOLATION => return error.FileBusy, |
| 4593 | | .ACCESS_DENIED => return error.AccessDenied, |
| 4594 | | .DELETE_PENDING => return, |
| 4595 | | else => return w.unexpectedStatus(rc), |
| 5060 | .MaximumLength = path_len_bytes, |
| 5061 | // The Windows API makes this mutable, but it will not mutate here. |
| 5062 | .Buffer = @constCast(sub_path_w.ptr), |
| 5063 | }; |
| 5064 | |
| 5065 | if (sub_path_w[0] == '.' and sub_path_w[1] == 0) { |
| 5066 | // Windows does not recognize this, but it does work with empty string. |
| 5067 | nt_name.Length = 0; |
| 5068 | } |
| 5069 | if (sub_path_w[0] == '.' and sub_path_w[1] == '.' and sub_path_w[2] == 0) { |
| 5070 | // Can't remove the parent directory with an open handle. |
| 5071 | return error.FileBusy; |
| 5072 | } |
| 5073 | |
| 5074 | var io_status_block: w.IO_STATUS_BLOCK = undefined; |
| 5075 | var tmp_handle: w.HANDLE = undefined; |
| 5076 | { |
| 5077 | const syscall: Syscall = try .start(); |
| 5078 | while (true) switch (w.ntdll.NtCreateFile( |
| 5079 | &tmp_handle, |
| 5080 | .{ .STANDARD = .{ |
| 5081 | .RIGHTS = .{ .DELETE = true }, |
| 5082 | .SYNCHRONIZE = true, |
| 5083 | } }, |
| 5084 | &.{ |
| 5085 | .Length = @sizeOf(w.OBJECT_ATTRIBUTES), |
| 5086 | .RootDirectory = if (std.fs.path.isAbsoluteWindowsWtf16(sub_path_w)) null else dir.handle, |
| 5087 | .Attributes = .{}, |
| 5088 | .ObjectName = &nt_name, |
| 5089 | .SecurityDescriptor = null, |
| 5090 | .SecurityQualityOfService = null, |
| 5091 | }, |
| 5092 | &io_status_block, |
| 5093 | null, |
| 5094 | .{}, |
| 5095 | .VALID_FLAGS, |
| 5096 | .OPEN, |
| 5097 | .{ |
| 5098 | .DIRECTORY_FILE = remove_dir, |
| 5099 | .NON_DIRECTORY_FILE = !remove_dir, |
| 5100 | .OPEN_REPARSE_POINT = true, // would we ever want to delete the target instead? |
| 5101 | }, |
| 5102 | null, |
| 5103 | 0, |
| 5104 | )) { |
| 5105 | .SUCCESS => break syscall.finish(), |
| 5106 | .OBJECT_NAME_INVALID => |err| return syscall.ntstatusBug(err), |
| 5107 | .OBJECT_NAME_NOT_FOUND => return syscall.fail(error.FileNotFound), |
| 5108 | .OBJECT_PATH_NOT_FOUND => return syscall.fail(error.FileNotFound), |
| 5109 | .BAD_NETWORK_PATH => return syscall.fail(error.NetworkNotFound), // \\server was not found |
| 5110 | .BAD_NETWORK_NAME => return syscall.fail(error.NetworkNotFound), // \\server was found but \\server\share wasn't |
| 5111 | .INVALID_PARAMETER => |err| return syscall.ntstatusBug(err), |
| 5112 | .FILE_IS_A_DIRECTORY => return syscall.fail(error.IsDir), |
| 5113 | .NOT_A_DIRECTORY => return syscall.fail(error.NotDir), |
| 5114 | .SHARING_VIOLATION => return syscall.fail(error.FileBusy), |
| 5115 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 5116 | .DELETE_PENDING => return syscall.finish(), |
| 5117 | else => |rc| return syscall.unexpectedNtstatus(rc), |
| 5118 | }; |
| 4596 | 5119 | } |
| 4597 | 5120 | defer w.CloseHandle(tmp_handle); |
| 4598 | 5121 | |
| ... | ... | @@ -4607,9 +5130,7 @@ fn dirDeleteWindows(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, remov |
| 4607 | 5130 | // |
| 4608 | 5131 | // The strategy here is just to try using FileDispositionInformationEx and fall back to |
| 4609 | 5132 | // FileDispositionInformation if the return value lets us know that some aspect of it is not supported. |
| 4610 | | const need_fallback = need_fallback: { |
| 4611 | | try current_thread.checkCancel(); |
| 4612 | | |
| 5133 | const rc = rc: { |
| 4613 | 5134 | // Deletion with posix semantics if the filesystem supports it. |
| 4614 | 5135 | const info: w.FILE.DISPOSITION.INFORMATION.EX = .{ .Flags = .{ |
| 4615 | 5136 | .DELETE = true, |
| ... | ... | @@ -4617,29 +5138,32 @@ fn dirDeleteWindows(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, remov |
| 4617 | 5138 | .IGNORE_READONLY_ATTRIBUTE = true, |
| 4618 | 5139 | } }; |
| 4619 | 5140 | |
| 4620 | | rc = w.ntdll.NtSetInformationFile( |
| 5141 | const syscall: Syscall = try .start(); |
| 5142 | while (true) switch (w.ntdll.NtSetInformationFile( |
| 4621 | 5143 | tmp_handle, |
| 4622 | 5144 | &io_status_block, |
| 4623 | 5145 | &info, |
| 4624 | 5146 | @sizeOf(w.FILE.DISPOSITION.INFORMATION.EX), |
| 4625 | 5147 | .DispositionEx, |
| 4626 | | ); |
| 4627 | | switch (rc) { |
| 4628 | | .SUCCESS => return, |
| 5148 | )) { |
| 5149 | .CANCELLED => { |
| 5150 | try syscall.checkCancel(); |
| 5151 | continue; |
| 5152 | }, |
| 4629 | 5153 | // The filesystem does not support FileDispositionInformationEx |
| 4630 | 5154 | .INVALID_PARAMETER, |
| 4631 | 5155 | // The operating system does not support FileDispositionInformationEx |
| 4632 | 5156 | .INVALID_INFO_CLASS, |
| 4633 | 5157 | // The operating system does not support one of the flags |
| 4634 | 5158 | .NOT_SUPPORTED, |
| 4635 | | => break :need_fallback true, |
| 4636 | | // For all other statuses, fall down to the switch below to handle them. |
| 4637 | | else => break :need_fallback false, |
| 4638 | | } |
| 4639 | | }; |
| 5159 | => break, // use fallback path below; `syscall` still active |
| 4640 | 5160 | |
| 4641 | | if (need_fallback) { |
| 4642 | | try current_thread.checkCancel(); |
| 5161 | // For all other statuses, fall down to the switch below to handle them. |
| 5162 | else => |rc| { |
| 5163 | syscall.finish(); |
| 5164 | break :rc rc; |
| 5165 | }, |
| 5166 | }; |
| 4643 | 5167 | |
| 4644 | 5168 | // Deletion with file pending semantics, which requires waiting or moving |
| 4645 | 5169 | // files to get them removed (from here). |
| ... | ... | @@ -4647,14 +5171,23 @@ fn dirDeleteWindows(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, remov |
| 4647 | 5171 | .DeleteFile = w.TRUE, |
| 4648 | 5172 | }; |
| 4649 | 5173 | |
| 4650 | | rc = w.ntdll.NtSetInformationFile( |
| 5174 | while (true) switch (w.ntdll.NtSetInformationFile( |
| 4651 | 5175 | tmp_handle, |
| 4652 | 5176 | &io_status_block, |
| 4653 | 5177 | &file_dispo, |
| 4654 | 5178 | @sizeOf(w.FILE.DISPOSITION.INFORMATION), |
| 4655 | 5179 | .Disposition, |
| 4656 | | ); |
| 4657 | | } |
| 5180 | )) { |
| 5181 | .CANCELLED => { |
| 5182 | try syscall.checkCancel(); |
| 5183 | continue; |
| 5184 | }, |
| 5185 | else => |rc| { |
| 5186 | syscall.finish(); |
| 5187 | break :rc rc; |
| 5188 | }, |
| 5189 | }; |
| 5190 | }; |
| 4658 | 5191 | switch (rc) { |
| 4659 | 5192 | .SUCCESS => {}, |
| 4660 | 5193 | .DIRECTORY_NOT_EMPTY => return error.DirNotEmpty, |
| ... | ... | @@ -4670,22 +5203,22 @@ fn dirDeleteDirWasi(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8) Dir.D |
| 4670 | 5203 | if (builtin.link_libc) return dirDeleteDirPosix(userdata, dir, sub_path); |
| 4671 | 5204 | |
| 4672 | 5205 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4673 | | const current_thread = Thread.getCurrent(t); |
| 5206 | _ = t; |
| 4674 | 5207 | |
| 4675 | | try current_thread.beginSyscall(); |
| 5208 | const syscall: Syscall = try .start(); |
| 4676 | 5209 | while (true) { |
| 4677 | 5210 | const res = std.os.wasi.path_remove_directory(dir.handle, sub_path.ptr, sub_path.len); |
| 4678 | 5211 | switch (res) { |
| 4679 | 5212 | .SUCCESS => { |
| 4680 | | current_thread.endSyscall(); |
| 5213 | syscall.finish(); |
| 4681 | 5214 | return; |
| 4682 | 5215 | }, |
| 4683 | 5216 | .INTR => { |
| 4684 | | try current_thread.checkCancel(); |
| 5217 | try syscall.checkCancel(); |
| 4685 | 5218 | continue; |
| 4686 | 5219 | }, |
| 4687 | 5220 | else => |e| { |
| 4688 | | current_thread.endSyscall(); |
| 5221 | syscall.finish(); |
| 4689 | 5222 | switch (e) { |
| 4690 | 5223 | .ACCES => return error.AccessDenied, |
| 4691 | 5224 | .PERM => return error.PermissionDenied, |
| ... | ... | @@ -4712,24 +5245,24 @@ fn dirDeleteDirWasi(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8) Dir.D |
| 4712 | 5245 | |
| 4713 | 5246 | fn dirDeleteDirPosix(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8) Dir.DeleteDirError!void { |
| 4714 | 5247 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4715 | | const current_thread = Thread.getCurrent(t); |
| 5248 | _ = t; |
| 4716 | 5249 | |
| 4717 | 5250 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 4718 | 5251 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| 4719 | 5252 | |
| 4720 | | try current_thread.beginSyscall(); |
| 5253 | const syscall: Syscall = try .start(); |
| 4721 | 5254 | while (true) { |
| 4722 | 5255 | switch (posix.errno(posix.system.unlinkat(dir.handle, sub_path_posix, posix.AT.REMOVEDIR))) { |
| 4723 | 5256 | .SUCCESS => { |
| 4724 | | current_thread.endSyscall(); |
| 5257 | syscall.finish(); |
| 4725 | 5258 | return; |
| 4726 | 5259 | }, |
| 4727 | 5260 | .INTR => { |
| 4728 | | try current_thread.checkCancel(); |
| 5261 | try syscall.checkCancel(); |
| 4729 | 5262 | continue; |
| 4730 | 5263 | }, |
| 4731 | 5264 | else => |e| { |
| 4732 | | current_thread.endSyscall(); |
| 5265 | syscall.finish(); |
| 4733 | 5266 | switch (e) { |
| 4734 | 5267 | .ACCES => return error.AccessDenied, |
| 4735 | 5268 | .PERM => return error.PermissionDenied, |
| ... | ... | @@ -4770,7 +5303,7 @@ fn dirRenameWindows( |
| 4770 | 5303 | ) Dir.RenameError!void { |
| 4771 | 5304 | const w = windows; |
| 4772 | 5305 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4773 | | const current_thread = Thread.getCurrent(t); |
| 5306 | _ = t; |
| 4774 | 5307 | |
| 4775 | 5308 | const old_path_w_buf = try windows.sliceToPrefixedFileW(old_dir.handle, old_sub_path); |
| 4776 | 5309 | const old_path_w = old_path_w_buf.span(); |
| ... | ... | @@ -4778,23 +5311,33 @@ fn dirRenameWindows( |
| 4778 | 5311 | const new_path_w = new_path_w_buf.span(); |
| 4779 | 5312 | const replace_if_exists = true; |
| 4780 | 5313 | |
| 4781 | | try current_thread.checkCancel(); |
| 4782 | | |
| 4783 | | const src_fd = w.OpenFile(old_path_w, .{ |
| 4784 | | .dir = old_dir.handle, |
| 4785 | | .access_mask = .{ |
| 4786 | | .GENERIC = .{ .WRITE = true }, |
| 4787 | | .STANDARD = .{ |
| 4788 | | .RIGHTS = .{ .DELETE = true }, |
| 4789 | | .SYNCHRONIZE = true, |
| 4790 | | }, |
| 4791 | | }, |
| 4792 | | .creation = .OPEN, |
| 4793 | | .filter = .any, // This function is supposed to rename both files and directories. |
| 4794 | | .follow_symlinks = false, |
| 4795 | | }) catch |err| switch (err) { |
| 4796 | | error.WouldBlock => unreachable, // Not possible without `.share_access_nonblocking = true`. |
| 4797 | | else => |e| return e, |
| 5314 | const src_fd = src_fd: { |
| 5315 | const syscall: Syscall = try .start(); |
| 5316 | while (true) { |
| 5317 | if (w.OpenFile(old_path_w, .{ |
| 5318 | .dir = old_dir.handle, |
| 5319 | .access_mask = .{ |
| 5320 | .GENERIC = .{ .WRITE = true }, |
| 5321 | .STANDARD = .{ |
| 5322 | .RIGHTS = .{ .DELETE = true }, |
| 5323 | .SYNCHRONIZE = true, |
| 5324 | }, |
| 5325 | }, |
| 5326 | .creation = .OPEN, |
| 5327 | .filter = .any, // This function is supposed to rename both files and directories. |
| 5328 | .follow_symlinks = false, |
| 5329 | })) |handle| { |
| 5330 | syscall.finish(); |
| 5331 | break :src_fd handle; |
| 5332 | } else |err| switch (err) { |
| 5333 | error.WouldBlock => unreachable, // Not possible without `.share_access_nonblocking = true`. |
| 5334 | error.OperationCanceled => { |
| 5335 | try syscall.checkCancel(); |
| 5336 | continue; |
| 5337 | }, |
| 5338 | else => |e| return e, |
| 5339 | } |
| 5340 | } |
| 4798 | 5341 | }; |
| 4799 | 5342 | defer w.CloseHandle(src_fd); |
| 4800 | 5343 | |
| ... | ... | @@ -4887,18 +5430,18 @@ fn dirRenameWasi( |
| 4887 | 5430 | if (builtin.link_libc) return dirRenamePosix(userdata, old_dir, old_sub_path, new_dir, new_sub_path); |
| 4888 | 5431 | |
| 4889 | 5432 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4890 | | const current_thread = Thread.getCurrent(t); |
| 5433 | _ = t; |
| 4891 | 5434 | |
| 4892 | | try current_thread.beginSyscall(); |
| 5435 | const syscall: Syscall = try .start(); |
| 4893 | 5436 | while (true) { |
| 4894 | 5437 | switch (std.os.wasi.path_rename(old_dir.handle, old_sub_path.ptr, old_sub_path.len, new_dir.handle, new_sub_path.ptr, new_sub_path.len)) { |
| 4895 | | .SUCCESS => return current_thread.endSyscall(), |
| 5438 | .SUCCESS => return syscall.finish(), |
| 4896 | 5439 | .INTR => { |
| 4897 | | try current_thread.checkCancel(); |
| 5440 | try syscall.checkCancel(); |
| 4898 | 5441 | continue; |
| 4899 | 5442 | }, |
| 4900 | 5443 | else => |e| { |
| 4901 | | current_thread.endSyscall(); |
| 5444 | syscall.finish(); |
| 4902 | 5445 | switch (e) { |
| 4903 | 5446 | .ACCES => return error.AccessDenied, |
| 4904 | 5447 | .PERM => return error.PermissionDenied, |
| ... | ... | @@ -4935,7 +5478,7 @@ fn dirRenamePosix( |
| 4935 | 5478 | new_sub_path: []const u8, |
| 4936 | 5479 | ) Dir.RenameError!void { |
| 4937 | 5480 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4938 | | const current_thread = Thread.getCurrent(t); |
| 5481 | _ = t; |
| 4939 | 5482 | |
| 4940 | 5483 | var old_path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 4941 | 5484 | var new_path_buffer: [posix.PATH_MAX]u8 = undefined; |
| ... | ... | @@ -4943,16 +5486,16 @@ fn dirRenamePosix( |
| 4943 | 5486 | const old_sub_path_posix = try pathToPosix(old_sub_path, &old_path_buffer); |
| 4944 | 5487 | const new_sub_path_posix = try pathToPosix(new_sub_path, &new_path_buffer); |
| 4945 | 5488 | |
| 4946 | | try current_thread.beginSyscall(); |
| 5489 | const syscall: Syscall = try .start(); |
| 4947 | 5490 | while (true) { |
| 4948 | 5491 | switch (posix.errno(posix.system.renameat(old_dir.handle, old_sub_path_posix, new_dir.handle, new_sub_path_posix))) { |
| 4949 | | .SUCCESS => return current_thread.endSyscall(), |
| 5492 | .SUCCESS => return syscall.finish(), |
| 4950 | 5493 | .INTR => { |
| 4951 | | try current_thread.checkCancel(); |
| 5494 | try syscall.checkCancel(); |
| 4952 | 5495 | continue; |
| 4953 | 5496 | }, |
| 4954 | 5497 | else => |e| { |
| 4955 | | current_thread.endSyscall(); |
| 5498 | syscall.finish(); |
| 4956 | 5499 | switch (e) { |
| 4957 | 5500 | .ACCES => return error.AccessDenied, |
| 4958 | 5501 | .PERM => return error.PermissionDenied, |
| ... | ... | @@ -4994,11 +5537,9 @@ fn dirSymLinkWindows( |
| 4994 | 5537 | flags: Dir.SymLinkFlags, |
| 4995 | 5538 | ) Dir.SymLinkError!void { |
| 4996 | 5539 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 4997 | | const current_thread = Thread.getCurrent(t); |
| 5540 | _ = t; |
| 4998 | 5541 | const w = windows; |
| 4999 | 5542 | |
| 5000 | | try current_thread.checkCancel(); |
| 5001 | | |
| 5002 | 5543 | // Target path does not use sliceToPrefixedFileW because certain paths |
| 5003 | 5544 | // are handled differently when creating a symlink than they would be |
| 5004 | 5545 | // when converting to an NT namespaced path. CreateSymbolicLink in |
| ... | ... | @@ -5028,22 +5569,34 @@ fn dirSymLinkWindows( |
| 5028 | 5569 | Flags: w.ULONG, |
| 5029 | 5570 | }; |
| 5030 | 5571 | |
| 5031 | | const symlink_handle = w.OpenFile(sym_link_path_w.span(), .{ |
| 5032 | | .access_mask = .{ |
| 5033 | | .GENERIC = .{ .READ = true, .WRITE = true }, |
| 5034 | | .STANDARD = .{ .SYNCHRONIZE = true }, |
| 5035 | | }, |
| 5036 | | .dir = dir.handle, |
| 5037 | | .creation = .CREATE, |
| 5038 | | .filter = if (flags.is_directory) .dir_only else .non_directory_only, |
| 5039 | | }) catch |err| switch (err) { |
| 5040 | | error.IsDir => return error.PathAlreadyExists, |
| 5041 | | error.NotDir => return error.Unexpected, |
| 5042 | | error.WouldBlock => return error.Unexpected, |
| 5043 | | error.PipeBusy => return error.Unexpected, |
| 5044 | | error.NoDevice => return error.Unexpected, |
| 5045 | | error.AntivirusInterference => return error.Unexpected, |
| 5046 | | else => |e| return e, |
| 5572 | const symlink_handle = handle: { |
| 5573 | const syscall: Syscall = try .start(); |
| 5574 | while (true) { |
| 5575 | if (w.OpenFile(sym_link_path_w.span(), .{ |
| 5576 | .access_mask = .{ |
| 5577 | .GENERIC = .{ .READ = true, .WRITE = true }, |
| 5578 | .STANDARD = .{ .SYNCHRONIZE = true }, |
| 5579 | }, |
| 5580 | .dir = dir.handle, |
| 5581 | .creation = .CREATE, |
| 5582 | .filter = if (flags.is_directory) .dir_only else .non_directory_only, |
| 5583 | })) |handle| { |
| 5584 | syscall.finish(); |
| 5585 | break :handle handle; |
| 5586 | } else |err| switch (err) { |
| 5587 | error.IsDir => return syscall.fail(error.PathAlreadyExists), |
| 5588 | error.NotDir => return syscall.fail(error.Unexpected), |
| 5589 | error.WouldBlock => return syscall.fail(error.Unexpected), |
| 5590 | error.PipeBusy => return syscall.fail(error.Unexpected), |
| 5591 | error.NoDevice => return syscall.fail(error.Unexpected), |
| 5592 | error.AntivirusInterference => return syscall.fail(error.Unexpected), |
| 5593 | error.OperationCanceled => { |
| 5594 | try syscall.checkCancel(); |
| 5595 | continue; |
| 5596 | }, |
| 5597 | else => |e| return e, |
| 5598 | } |
| 5599 | } |
| 5047 | 5600 | }; |
| 5048 | 5601 | defer w.CloseHandle(symlink_handle); |
| 5049 | 5602 | |
| ... | ... | @@ -5121,18 +5674,18 @@ fn dirSymLinkWasi( |
| 5121 | 5674 | if (builtin.link_libc) return dirSymLinkPosix(userdata, dir, target_path, sym_link_path, flags); |
| 5122 | 5675 | |
| 5123 | 5676 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5124 | | const current_thread = Thread.getCurrent(t); |
| 5677 | _ = t; |
| 5125 | 5678 | |
| 5126 | | try current_thread.beginSyscall(); |
| 5679 | const syscall: Syscall = try .start(); |
| 5127 | 5680 | while (true) { |
| 5128 | 5681 | switch (std.os.wasi.path_symlink(target_path.ptr, target_path.len, dir.handle, sym_link_path.ptr, sym_link_path.len)) { |
| 5129 | | .SUCCESS => return current_thread.endSyscall(), |
| 5682 | .SUCCESS => return syscall.finish(), |
| 5130 | 5683 | .INTR => { |
| 5131 | | try current_thread.checkCancel(); |
| 5684 | try syscall.checkCancel(); |
| 5132 | 5685 | continue; |
| 5133 | 5686 | }, |
| 5134 | 5687 | else => |e| { |
| 5135 | | current_thread.endSyscall(); |
| 5688 | syscall.finish(); |
| 5136 | 5689 | switch (e) { |
| 5137 | 5690 | .FAULT => |err| return errnoBug(err), |
| 5138 | 5691 | .INVAL => |err| return errnoBug(err), |
| ... | ... | @@ -5167,7 +5720,7 @@ fn dirSymLinkPosix( |
| 5167 | 5720 | ) Dir.SymLinkError!void { |
| 5168 | 5721 | _ = flags; |
| 5169 | 5722 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5170 | | const current_thread = Thread.getCurrent(t); |
| 5723 | _ = t; |
| 5171 | 5724 | |
| 5172 | 5725 | var target_path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 5173 | 5726 | var sym_link_path_buffer: [posix.PATH_MAX]u8 = undefined; |
| ... | ... | @@ -5175,16 +5728,16 @@ fn dirSymLinkPosix( |
| 5175 | 5728 | const target_path_posix = try pathToPosix(target_path, &target_path_buffer); |
| 5176 | 5729 | const sym_link_path_posix = try pathToPosix(sym_link_path, &sym_link_path_buffer); |
| 5177 | 5730 | |
| 5178 | | try current_thread.beginSyscall(); |
| 5731 | const syscall: Syscall = try .start(); |
| 5179 | 5732 | while (true) { |
| 5180 | 5733 | switch (posix.errno(posix.system.symlinkat(target_path_posix, dir.handle, sym_link_path_posix))) { |
| 5181 | | .SUCCESS => return current_thread.endSyscall(), |
| 5734 | .SUCCESS => return syscall.finish(), |
| 5182 | 5735 | .INTR => { |
| 5183 | | try current_thread.checkCancel(); |
| 5736 | try syscall.checkCancel(); |
| 5184 | 5737 | continue; |
| 5185 | 5738 | }, |
| 5186 | 5739 | else => |e| { |
| 5187 | | current_thread.endSyscall(); |
| 5740 | syscall.finish(); |
| 5188 | 5741 | switch (e) { |
| 5189 | 5742 | .FAULT => |err| return errnoBug(err), |
| 5190 | 5743 | .INVAL => |err| return errnoBug(err), |
| ... | ... | @@ -5216,14 +5769,24 @@ const dirReadLink = switch (native_os) { |
| 5216 | 5769 | |
| 5217 | 5770 | fn dirReadLinkWindows(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, buffer: []u8) Dir.ReadLinkError!usize { |
| 5218 | 5771 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5219 | | const current_thread = Thread.getCurrent(t); |
| 5772 | _ = t; |
| 5220 | 5773 | const w = windows; |
| 5221 | 5774 | |
| 5222 | | try current_thread.checkCancel(); |
| 5223 | | |
| 5224 | 5775 | var sub_path_w_buf = try windows.sliceToPrefixedFileW(dir.handle, sub_path); |
| 5225 | 5776 | |
| 5226 | | const result_w = try w.ReadLink(dir.handle, sub_path_w_buf.span(), &sub_path_w_buf.data); |
| 5777 | const syscall: Syscall = try .start(); |
| 5778 | const result_w = while (true) { |
| 5779 | if (w.ReadLink(dir.handle, sub_path_w_buf.span(), &sub_path_w_buf.data)) |res| { |
| 5780 | syscall.finish(); |
| 5781 | break res; |
| 5782 | } else |err| switch (err) { |
| 5783 | error.OperationCanceled => { |
| 5784 | try syscall.checkCancel(); |
| 5785 | continue; |
| 5786 | }, |
| 5787 | else => |e| return syscall.fail(e), |
| 5788 | } |
| 5789 | }; |
| 5227 | 5790 | |
| 5228 | 5791 | const len = std.unicode.calcWtf8Len(result_w); |
| 5229 | 5792 | if (len > buffer.len) return error.NameTooLong; |
| ... | ... | @@ -5235,22 +5798,22 @@ fn dirReadLinkWasi(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, buffer |
| 5235 | 5798 | if (builtin.link_libc) return dirReadLinkPosix(userdata, dir, sub_path, buffer); |
| 5236 | 5799 | |
| 5237 | 5800 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5238 | | const current_thread = Thread.getCurrent(t); |
| 5801 | _ = t; |
| 5239 | 5802 | |
| 5240 | 5803 | var n: usize = undefined; |
| 5241 | | try current_thread.beginSyscall(); |
| 5804 | const syscall: Syscall = try .start(); |
| 5242 | 5805 | while (true) { |
| 5243 | 5806 | switch (std.os.wasi.path_readlink(dir.handle, sub_path.ptr, sub_path.len, buffer.ptr, buffer.len, &n)) { |
| 5244 | 5807 | .SUCCESS => { |
| 5245 | | current_thread.endSyscall(); |
| 5808 | syscall.finish(); |
| 5246 | 5809 | return n; |
| 5247 | 5810 | }, |
| 5248 | 5811 | .INTR => { |
| 5249 | | try current_thread.checkCancel(); |
| 5812 | try syscall.checkCancel(); |
| 5250 | 5813 | continue; |
| 5251 | 5814 | }, |
| 5252 | 5815 | else => |e| { |
| 5253 | | current_thread.endSyscall(); |
| 5816 | syscall.finish(); |
| 5254 | 5817 | switch (e) { |
| 5255 | 5818 | .ACCES => return error.AccessDenied, |
| 5256 | 5819 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -5272,26 +5835,26 @@ fn dirReadLinkWasi(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, buffer |
| 5272 | 5835 | |
| 5273 | 5836 | fn dirReadLinkPosix(userdata: ?*anyopaque, dir: Dir, sub_path: []const u8, buffer: []u8) Dir.ReadLinkError!usize { |
| 5274 | 5837 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5275 | | const current_thread = Thread.getCurrent(t); |
| 5838 | _ = t; |
| 5276 | 5839 | |
| 5277 | 5840 | var sub_path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 5278 | 5841 | const sub_path_posix = try pathToPosix(sub_path, &sub_path_buffer); |
| 5279 | 5842 | |
| 5280 | | try current_thread.beginSyscall(); |
| 5843 | const syscall: Syscall = try .start(); |
| 5281 | 5844 | while (true) { |
| 5282 | 5845 | const rc = posix.system.readlinkat(dir.handle, sub_path_posix, buffer.ptr, buffer.len); |
| 5283 | 5846 | switch (posix.errno(rc)) { |
| 5284 | 5847 | .SUCCESS => { |
| 5285 | | current_thread.endSyscall(); |
| 5848 | syscall.finish(); |
| 5286 | 5849 | const len: usize = @bitCast(rc); |
| 5287 | 5850 | return len; |
| 5288 | 5851 | }, |
| 5289 | 5852 | .INTR => { |
| 5290 | | try current_thread.checkCancel(); |
| 5853 | try syscall.checkCancel(); |
| 5291 | 5854 | continue; |
| 5292 | 5855 | }, |
| 5293 | 5856 | else => |e| { |
| 5294 | | current_thread.endSyscall(); |
| 5857 | syscall.finish(); |
| 5295 | 5858 | switch (e) { |
| 5296 | 5859 | .ACCES => return error.AccessDenied, |
| 5297 | 5860 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -5326,8 +5889,8 @@ fn dirSetPermissionsWindows(userdata: ?*anyopaque, dir: Dir, permissions: Dir.Pe |
| 5326 | 5889 | fn dirSetPermissionsPosix(userdata: ?*anyopaque, dir: Dir, permissions: Dir.Permissions) Dir.SetPermissionsError!void { |
| 5327 | 5890 | if (@sizeOf(Dir.Permissions) == 0) return; |
| 5328 | 5891 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5329 | | const current_thread = Thread.getCurrent(t); |
| 5330 | | return setPermissionsPosix(current_thread, dir.handle, permissions.toMode()); |
| 5892 | _ = t; |
| 5893 | return setPermissionsPosix(dir.handle, permissions.toMode()); |
| 5331 | 5894 | } |
| 5332 | 5895 | |
| 5333 | 5896 | fn dirSetFilePermissions( |
| ... | ... | @@ -5340,7 +5903,6 @@ fn dirSetFilePermissions( |
| 5340 | 5903 | if (@sizeOf(Dir.Permissions) == 0) return; |
| 5341 | 5904 | if (is_windows) @panic("TODO implement dirSetFilePermissions windows"); |
| 5342 | 5905 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5343 | | const current_thread = Thread.getCurrent(t); |
| 5344 | 5906 | |
| 5345 | 5907 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 5346 | 5908 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| ... | ... | @@ -5348,12 +5910,11 @@ fn dirSetFilePermissions( |
| 5348 | 5910 | const mode = permissions.toMode(); |
| 5349 | 5911 | const flags: u32 = if (!options.follow_symlinks) posix.AT.SYMLINK_NOFOLLOW else 0; |
| 5350 | 5912 | |
| 5351 | | return posixFchmodat(t, current_thread, dir.handle, sub_path_posix, mode, flags); |
| 5913 | return posixFchmodat(t, dir.handle, sub_path_posix, mode, flags); |
| 5352 | 5914 | } |
| 5353 | 5915 | |
| 5354 | 5916 | fn posixFchmodat( |
| 5355 | 5917 | t: *Threaded, |
| 5356 | | current_thread: *Thread, |
| 5357 | 5918 | dir_fd: posix.fd_t, |
| 5358 | 5919 | path: [*:0]const u8, |
| 5359 | 5920 | mode: posix.mode_t, |
| ... | ... | @@ -5362,20 +5923,20 @@ fn posixFchmodat( |
| 5362 | 5923 | // No special handling for linux is needed if we can use the libc fallback |
| 5363 | 5924 | // or `flags` is empty. Glibc only added the fallback in 2.32. |
| 5364 | 5925 | if (have_fchmodat_flags or flags == 0) { |
| 5365 | | try current_thread.beginSyscall(); |
| 5926 | const syscall: Syscall = try .start(); |
| 5366 | 5927 | while (true) { |
| 5367 | 5928 | const rc = if (have_fchmodat_flags or builtin.link_libc) |
| 5368 | 5929 | posix.system.fchmodat(dir_fd, path, mode, flags) |
| 5369 | 5930 | else |
| 5370 | 5931 | posix.system.fchmodat(dir_fd, path, mode); |
| 5371 | 5932 | switch (posix.errno(rc)) { |
| 5372 | | .SUCCESS => return current_thread.endSyscall(), |
| 5933 | .SUCCESS => return syscall.finish(), |
| 5373 | 5934 | .INTR => { |
| 5374 | | try current_thread.checkCancel(); |
| 5935 | try syscall.checkCancel(); |
| 5375 | 5936 | continue; |
| 5376 | 5937 | }, |
| 5377 | 5938 | else => |e| { |
| 5378 | | current_thread.endSyscall(); |
| 5939 | syscall.finish(); |
| 5379 | 5940 | switch (e) { |
| 5380 | 5941 | .BADF => |err| return errnoBug(err), |
| 5381 | 5942 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -5400,20 +5961,20 @@ fn posixFchmodat( |
| 5400 | 5961 | } |
| 5401 | 5962 | |
| 5402 | 5963 | if (@atomicLoad(UseFchmodat2, &t.use_fchmodat2, .monotonic) == .disabled) |
| 5403 | | return fchmodatFallback(current_thread, dir_fd, path, mode); |
| 5964 | return fchmodatFallback(dir_fd, path, mode); |
| 5404 | 5965 | |
| 5405 | 5966 | comptime assert(native_os == .linux); |
| 5406 | 5967 | |
| 5407 | | try current_thread.beginSyscall(); |
| 5968 | const syscall: Syscall = try .start(); |
| 5408 | 5969 | while (true) { |
| 5409 | 5970 | switch (std.os.linux.errno(std.os.linux.fchmodat2(dir_fd, path, mode, flags))) { |
| 5410 | | .SUCCESS => return current_thread.endSyscall(), |
| 5971 | .SUCCESS => return syscall.finish(), |
| 5411 | 5972 | .INTR => { |
| 5412 | | try current_thread.checkCancel(); |
| 5973 | try syscall.checkCancel(); |
| 5413 | 5974 | continue; |
| 5414 | 5975 | }, |
| 5415 | 5976 | else => |e| { |
| 5416 | | current_thread.endSyscall(); |
| 5977 | syscall.finish(); |
| 5417 | 5978 | switch (e) { |
| 5418 | 5979 | .BADF => |err| return errnoBug(err), |
| 5419 | 5980 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -5429,7 +5990,7 @@ fn posixFchmodat( |
| 5429 | 5990 | .ROFS => return error.ReadOnlyFileSystem, |
| 5430 | 5991 | .NOSYS => { |
| 5431 | 5992 | @atomicStore(UseFchmodat2, &t.use_fchmodat2, .disabled, .monotonic); |
| 5432 | | return fchmodatFallback(current_thread, dir_fd, path, mode); |
| 5993 | return fchmodatFallback(dir_fd, path, mode); |
| 5433 | 5994 | }, |
| 5434 | 5995 | else => |err| return posix.unexpectedErrno(err), |
| 5435 | 5996 | } |
| ... | ... | @@ -5439,7 +6000,6 @@ fn posixFchmodat( |
| 5439 | 6000 | } |
| 5440 | 6001 | |
| 5441 | 6002 | fn fchmodatFallback( |
| 5442 | | current_thread: *Thread, |
| 5443 | 6003 | dir_fd: posix.fd_t, |
| 5444 | 6004 | path: [*:0]const u8, |
| 5445 | 6005 | mode: posix.mode_t, |
| ... | ... | @@ -5457,64 +6017,68 @@ fn fchmodatFallback( |
| 5457 | 6017 | // 2. Stat the fd and check if it isn't a symbolic link. |
| 5458 | 6018 | // 3. Generate the procfs reference to the fd via `/proc/self/fd/{fd}`. |
| 5459 | 6019 | // 4. Pass the procfs path to `chmod` with the `mode`. |
| 5460 | | try current_thread.beginSyscall(); |
| 5461 | | const path_fd: posix.fd_t = while (true) { |
| 5462 | | const rc = posix.system.openat(dir_fd, path, .{ |
| 5463 | | .PATH = true, |
| 5464 | | .NOFOLLOW = true, |
| 5465 | | .CLOEXEC = true, |
| 5466 | | }, @as(posix.mode_t, 0)); |
| 5467 | | switch (posix.errno(rc)) { |
| 5468 | | .SUCCESS => { |
| 5469 | | current_thread.endSyscall(); |
| 5470 | | break @intCast(rc); |
| 5471 | | }, |
| 5472 | | .INTR => { |
| 5473 | | try current_thread.checkCancel(); |
| 5474 | | continue; |
| 5475 | | }, |
| 5476 | | else => |e| { |
| 5477 | | current_thread.endSyscall(); |
| 5478 | | switch (e) { |
| 5479 | | .FAULT => |err| return errnoBug(err), |
| 5480 | | .INVAL => |err| return errnoBug(err), |
| 5481 | | .ACCES => return error.AccessDenied, |
| 5482 | | .PERM => return error.PermissionDenied, |
| 5483 | | .LOOP => return error.SymLinkLoop, |
| 5484 | | .MFILE => return error.ProcessFdQuotaExceeded, |
| 5485 | | .NAMETOOLONG => return error.NameTooLong, |
| 5486 | | .NFILE => return error.SystemFdQuotaExceeded, |
| 5487 | | .NOENT => return error.FileNotFound, |
| 5488 | | .NOMEM => return error.SystemResources, |
| 5489 | | else => |err| return posix.unexpectedErrno(err), |
| 5490 | | } |
| 5491 | | }, |
| 6020 | const path_fd: posix.fd_t = fd: { |
| 6021 | const syscall: Syscall = try .start(); |
| 6022 | while (true) { |
| 6023 | const rc = posix.system.openat(dir_fd, path, .{ |
| 6024 | .PATH = true, |
| 6025 | .NOFOLLOW = true, |
| 6026 | .CLOEXEC = true, |
| 6027 | }, @as(posix.mode_t, 0)); |
| 6028 | switch (posix.errno(rc)) { |
| 6029 | .SUCCESS => { |
| 6030 | syscall.finish(); |
| 6031 | break :fd @intCast(rc); |
| 6032 | }, |
| 6033 | .INTR => { |
| 6034 | try syscall.checkCancel(); |
| 6035 | continue; |
| 6036 | }, |
| 6037 | else => |e| { |
| 6038 | syscall.finish(); |
| 6039 | switch (e) { |
| 6040 | .FAULT => |err| return errnoBug(err), |
| 6041 | .INVAL => |err| return errnoBug(err), |
| 6042 | .ACCES => return error.AccessDenied, |
| 6043 | .PERM => return error.PermissionDenied, |
| 6044 | .LOOP => return error.SymLinkLoop, |
| 6045 | .MFILE => return error.ProcessFdQuotaExceeded, |
| 6046 | .NAMETOOLONG => return error.NameTooLong, |
| 6047 | .NFILE => return error.SystemFdQuotaExceeded, |
| 6048 | .NOENT => return error.FileNotFound, |
| 6049 | .NOMEM => return error.SystemResources, |
| 6050 | else => |err| return posix.unexpectedErrno(err), |
| 6051 | } |
| 6052 | }, |
| 6053 | } |
| 5492 | 6054 | } |
| 5493 | 6055 | }; |
| 5494 | 6056 | defer posix.close(path_fd); |
| 5495 | 6057 | |
| 5496 | | try current_thread.beginSyscall(); |
| 5497 | | const path_mode = while (true) { |
| 5498 | | var statx = std.mem.zeroes(std.os.linux.Statx); |
| 5499 | | switch (sys.errno(sys.statx(path_fd, "", posix.AT.EMPTY_PATH, .{ .TYPE = true }, &statx))) { |
| 5500 | | .SUCCESS => { |
| 5501 | | current_thread.endSyscall(); |
| 5502 | | if (!statx.mask.TYPE) return error.Unexpected; |
| 5503 | | break statx.mode; |
| 5504 | | }, |
| 5505 | | .INTR => { |
| 5506 | | try current_thread.checkCancel(); |
| 5507 | | continue; |
| 5508 | | }, |
| 5509 | | else => |e| { |
| 5510 | | current_thread.endSyscall(); |
| 5511 | | switch (e) { |
| 5512 | | .ACCES => return error.AccessDenied, |
| 5513 | | .LOOP => return error.SymLinkLoop, |
| 5514 | | .NOMEM => return error.SystemResources, |
| 5515 | | else => |err| return posix.unexpectedErrno(err), |
| 5516 | | } |
| 5517 | | }, |
| 6058 | const path_mode = mode: { |
| 6059 | const syscall: Syscall = try .start(); |
| 6060 | while (true) { |
| 6061 | var statx = std.mem.zeroes(std.os.linux.Statx); |
| 6062 | switch (sys.errno(sys.statx(path_fd, "", posix.AT.EMPTY_PATH, .{ .TYPE = true }, &statx))) { |
| 6063 | .SUCCESS => { |
| 6064 | syscall.finish(); |
| 6065 | if (!statx.mask.TYPE) return error.Unexpected; |
| 6066 | break :mode statx.mode; |
| 6067 | }, |
| 6068 | .INTR => { |
| 6069 | try syscall.checkCancel(); |
| 6070 | continue; |
| 6071 | }, |
| 6072 | else => |e| { |
| 6073 | syscall.finish(); |
| 6074 | switch (e) { |
| 6075 | .ACCES => return error.AccessDenied, |
| 6076 | .LOOP => return error.SymLinkLoop, |
| 6077 | .NOMEM => return error.SystemResources, |
| 6078 | else => |err| return posix.unexpectedErrno(err), |
| 6079 | } |
| 6080 | }, |
| 6081 | } |
| 5518 | 6082 | } |
| 5519 | 6083 | }; |
| 5520 | 6084 | |
| ... | ... | @@ -5524,16 +6088,16 @@ fn fchmodatFallback( |
| 5524 | 6088 | |
| 5525 | 6089 | var procfs_buf: ["/proc/self/fd/-2147483648\x00".len]u8 = undefined; |
| 5526 | 6090 | const proc_path = std.fmt.bufPrintSentinel(&procfs_buf, "/proc/self/fd/{d}", .{path_fd}, 0) catch unreachable; |
| 5527 | | try current_thread.beginSyscall(); |
| 6091 | const syscall: Syscall = try .start(); |
| 5528 | 6092 | while (true) { |
| 5529 | 6093 | switch (posix.errno(posix.system.chmod(proc_path, mode))) { |
| 5530 | | .SUCCESS => return current_thread.endSyscall(), |
| 6094 | .SUCCESS => return syscall.finish(), |
| 5531 | 6095 | .INTR => { |
| 5532 | | try current_thread.checkCancel(); |
| 6096 | try syscall.checkCancel(); |
| 5533 | 6097 | continue; |
| 5534 | 6098 | }, |
| 5535 | 6099 | else => |e| { |
| 5536 | | current_thread.endSyscall(); |
| 6100 | syscall.finish(); |
| 5537 | 6101 | switch (e) { |
| 5538 | 6102 | .NOENT => return error.OperationUnsupported, // procfs not mounted. |
| 5539 | 6103 | .BADF => |err| return errnoBug(err), |
| ... | ... | @@ -5569,24 +6133,24 @@ fn dirSetOwnerUnsupported(userdata: ?*anyopaque, dir: Dir, owner: ?File.Uid, gro |
| 5569 | 6133 | fn dirSetOwnerPosix(userdata: ?*anyopaque, dir: Dir, owner: ?File.Uid, group: ?File.Gid) Dir.SetOwnerError!void { |
| 5570 | 6134 | if (!have_fchown) return error.Unexpected; // Unsupported OS, don't call this function. |
| 5571 | 6135 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5572 | | const current_thread = Thread.getCurrent(t); |
| 6136 | _ = t; |
| 5573 | 6137 | const uid = owner orelse ~@as(posix.uid_t, 0); |
| 5574 | 6138 | const gid = group orelse ~@as(posix.gid_t, 0); |
| 5575 | | return posixFchown(current_thread, dir.handle, uid, gid); |
| 6139 | return posixFchown(dir.handle, uid, gid); |
| 5576 | 6140 | } |
| 5577 | 6141 | |
| 5578 | | fn posixFchown(current_thread: *Thread, fd: posix.fd_t, uid: posix.uid_t, gid: posix.gid_t) File.SetOwnerError!void { |
| 6142 | fn posixFchown(fd: posix.fd_t, uid: posix.uid_t, gid: posix.gid_t) File.SetOwnerError!void { |
| 5579 | 6143 | comptime assert(have_fchown); |
| 5580 | | try current_thread.beginSyscall(); |
| 6144 | const syscall: Syscall = try .start(); |
| 5581 | 6145 | while (true) { |
| 5582 | 6146 | switch (posix.errno(posix.system.fchown(fd, uid, gid))) { |
| 5583 | | .SUCCESS => return current_thread.endSyscall(), |
| 6147 | .SUCCESS => return syscall.finish(), |
| 5584 | 6148 | .INTR => { |
| 5585 | | try current_thread.checkCancel(); |
| 6149 | try syscall.checkCancel(); |
| 5586 | 6150 | continue; |
| 5587 | 6151 | }, |
| 5588 | 6152 | else => |e| { |
| 5589 | | current_thread.endSyscall(); |
| 6153 | syscall.finish(); |
| 5590 | 6154 | switch (e) { |
| 5591 | 6155 | .BADF => |err| return errnoBug(err), // likely fd refers to directory opened without `Dir.OpenOptions.iterate` |
| 5592 | 6156 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -5616,12 +6180,11 @@ fn dirSetFileOwner( |
| 5616 | 6180 | ) Dir.SetFileOwnerError!void { |
| 5617 | 6181 | if (!have_fchown) return error.Unexpected; // Unsupported OS, don't call this function. |
| 5618 | 6182 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5619 | | const current_thread = Thread.getCurrent(t); |
| 6183 | _ = t; |
| 5620 | 6184 | |
| 5621 | 6185 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 5622 | 6186 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| 5623 | 6187 | |
| 5624 | | _ = current_thread; |
| 5625 | 6188 | _ = dir; |
| 5626 | 6189 | _ = sub_path_posix; |
| 5627 | 6190 | _ = owner; |
| ... | ... | @@ -5638,35 +6201,43 @@ const fileSync = switch (native_os) { |
| 5638 | 6201 | |
| 5639 | 6202 | fn fileSyncWindows(userdata: ?*anyopaque, file: File) File.SyncError!void { |
| 5640 | 6203 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5641 | | const current_thread = Thread.getCurrent(t); |
| 5642 | | |
| 5643 | | try current_thread.checkCancel(); |
| 5644 | | |
| 5645 | | if (windows.kernel32.FlushFileBuffers(file.handle) != 0) |
| 5646 | | return; |
| 6204 | _ = t; |
| 5647 | 6205 | |
| 5648 | | switch (windows.GetLastError()) { |
| 5649 | | .SUCCESS => return, |
| 5650 | | .INVALID_HANDLE => unreachable, |
| 5651 | | .ACCESS_DENIED => return error.AccessDenied, // a sync was performed but the system couldn't update the access time |
| 5652 | | .UNEXP_NET_ERR => return error.InputOutput, |
| 5653 | | else => |err| return windows.unexpectedError(err), |
| 6206 | const syscall: Syscall = try .start(); |
| 6207 | while (true) { |
| 6208 | if (windows.kernel32.FlushFileBuffers(file.handle) != 0) { |
| 6209 | return syscall.finish(); |
| 6210 | } |
| 6211 | switch (windows.GetLastError()) { |
| 6212 | .SUCCESS => unreachable, // `FlushFileBuffers` returned nonzero |
| 6213 | .INVALID_HANDLE => unreachable, |
| 6214 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), // a sync was performed but the system couldn't update the access time |
| 6215 | .UNEXP_NET_ERR => return syscall.fail(error.InputOutput), |
| 6216 | .OPERATION_ABORTED => { |
| 6217 | try syscall.checkCancel(); |
| 6218 | continue; |
| 6219 | }, |
| 6220 | else => |err| { |
| 6221 | syscall.finish(); |
| 6222 | return windows.unexpectedError(err); |
| 6223 | }, |
| 6224 | } |
| 5654 | 6225 | } |
| 5655 | 6226 | } |
| 5656 | 6227 | |
| 5657 | 6228 | fn fileSyncPosix(userdata: ?*anyopaque, file: File) File.SyncError!void { |
| 5658 | 6229 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5659 | | const current_thread = Thread.getCurrent(t); |
| 5660 | | try current_thread.beginSyscall(); |
| 6230 | _ = t; |
| 6231 | const syscall: Syscall = try .start(); |
| 5661 | 6232 | while (true) { |
| 5662 | 6233 | switch (posix.errno(posix.system.fsync(file.handle))) { |
| 5663 | | .SUCCESS => return current_thread.endSyscall(), |
| 6234 | .SUCCESS => return syscall.finish(), |
| 5664 | 6235 | .INTR => { |
| 5665 | | try current_thread.checkCancel(); |
| 6236 | try syscall.checkCancel(); |
| 5666 | 6237 | continue; |
| 5667 | 6238 | }, |
| 5668 | 6239 | else => |e| { |
| 5669 | | current_thread.endSyscall(); |
| 6240 | syscall.finish(); |
| 5670 | 6241 | switch (e) { |
| 5671 | 6242 | .BADF => |err| return errnoBug(err), |
| 5672 | 6243 | .INVAL => |err| return errnoBug(err), |
| ... | ... | @@ -5683,17 +6254,17 @@ fn fileSyncPosix(userdata: ?*anyopaque, file: File) File.SyncError!void { |
| 5683 | 6254 | |
| 5684 | 6255 | fn fileSyncWasi(userdata: ?*anyopaque, file: File) File.SyncError!void { |
| 5685 | 6256 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5686 | | const current_thread = Thread.getCurrent(t); |
| 5687 | | try current_thread.beginSyscall(); |
| 6257 | _ = t; |
| 6258 | const syscall: Syscall = try .start(); |
| 5688 | 6259 | while (true) { |
| 5689 | 6260 | switch (std.os.wasi.fd_sync(file.handle)) { |
| 5690 | | .SUCCESS => return current_thread.endSyscall(), |
| 6261 | .SUCCESS => return syscall.finish(), |
| 5691 | 6262 | .INTR => { |
| 5692 | | try current_thread.checkCancel(); |
| 6263 | try syscall.checkCancel(); |
| 5693 | 6264 | continue; |
| 5694 | 6265 | }, |
| 5695 | 6266 | else => |e| { |
| 5696 | | current_thread.endSyscall(); |
| 6267 | syscall.finish(); |
| 5697 | 6268 | switch (e) { |
| 5698 | 6269 | .BADF => |err| return errnoBug(err), |
| 5699 | 6270 | .INVAL => |err| return errnoBug(err), |
| ... | ... | @@ -5710,33 +6281,46 @@ fn fileSyncWasi(userdata: ?*anyopaque, file: File) File.SyncError!void { |
| 5710 | 6281 | |
| 5711 | 6282 | fn fileIsTty(userdata: ?*anyopaque, file: File) Io.Cancelable!bool { |
| 5712 | 6283 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5713 | | const current_thread = Thread.getCurrent(t); |
| 5714 | | return isTty(current_thread, file); |
| 6284 | _ = t; |
| 6285 | return isTty(file); |
| 5715 | 6286 | } |
| 5716 | 6287 | |
| 5717 | | fn isTty(current_thread: *Thread, file: File) Io.Cancelable!bool { |
| 6288 | fn isTty(file: File) Io.Cancelable!bool { |
| 5718 | 6289 | if (is_windows) { |
| 5719 | | if (try isCygwinPty(current_thread, file)) return true; |
| 5720 | | try current_thread.checkCancel(); |
| 6290 | if (try isCygwinPty(file)) return true; |
| 5721 | 6291 | var out: windows.DWORD = undefined; |
| 5722 | | return windows.kernel32.GetConsoleMode(file.handle, &out) != 0; |
| 6292 | const syscall: Syscall = try .start(); |
| 6293 | while (windows.kernel32.GetConsoleMode(file.handle, &out) == 0) { |
| 6294 | switch (windows.GetLastError()) { |
| 6295 | .OPERATION_ABORTED => { |
| 6296 | try syscall.checkCancel(); |
| 6297 | continue; |
| 6298 | }, |
| 6299 | else => { |
| 6300 | syscall.finish(); |
| 6301 | return false; |
| 6302 | }, |
| 6303 | } |
| 6304 | } |
| 6305 | syscall.finish(); |
| 6306 | return true; |
| 5723 | 6307 | } |
| 5724 | 6308 | |
| 5725 | 6309 | if (builtin.link_libc) { |
| 5726 | | try current_thread.beginSyscall(); |
| 6310 | const syscall: Syscall = try .start(); |
| 5727 | 6311 | while (true) { |
| 5728 | 6312 | const rc = posix.system.isatty(file.handle); |
| 5729 | 6313 | switch (posix.errno(rc - 1)) { |
| 5730 | 6314 | .SUCCESS => { |
| 5731 | | current_thread.endSyscall(); |
| 6315 | syscall.finish(); |
| 5732 | 6316 | return true; |
| 5733 | 6317 | }, |
| 5734 | 6318 | .INTR => { |
| 5735 | | try current_thread.checkCancel(); |
| 6319 | try syscall.checkCancel(); |
| 5736 | 6320 | continue; |
| 5737 | 6321 | }, |
| 5738 | 6322 | else => { |
| 5739 | | current_thread.endSyscall(); |
| 6323 | syscall.finish(); |
| 5740 | 6324 | return false; |
| 5741 | 6325 | }, |
| 5742 | 6326 | } |
| ... | ... | @@ -5760,22 +6344,22 @@ fn isTty(current_thread: *Thread, file: File) Io.Cancelable!bool { |
| 5760 | 6344 | |
| 5761 | 6345 | if (native_os == .linux) { |
| 5762 | 6346 | const linux = std.os.linux; |
| 5763 | | try current_thread.beginSyscall(); |
| 6347 | const syscall: Syscall = try .start(); |
| 5764 | 6348 | while (true) { |
| 5765 | 6349 | var wsz: posix.winsize = undefined; |
| 5766 | 6350 | const fd: usize = @bitCast(@as(isize, file.handle)); |
| 5767 | 6351 | const rc = linux.syscall3(.ioctl, fd, linux.T.IOCGWINSZ, @intFromPtr(&wsz)); |
| 5768 | 6352 | switch (linux.errno(rc)) { |
| 5769 | 6353 | .SUCCESS => { |
| 5770 | | current_thread.endSyscall(); |
| 6354 | syscall.finish(); |
| 5771 | 6355 | return true; |
| 5772 | 6356 | }, |
| 5773 | 6357 | .INTR => { |
| 5774 | | try current_thread.checkCancel(); |
| 6358 | try syscall.checkCancel(); |
| 5775 | 6359 | continue; |
| 5776 | 6360 | }, |
| 5777 | 6361 | else => { |
| 5778 | | current_thread.endSyscall(); |
| 6362 | syscall.finish(); |
| 5779 | 6363 | return false; |
| 5780 | 6364 | }, |
| 5781 | 6365 | } |
| ... | ... | @@ -5787,53 +6371,99 @@ fn isTty(current_thread: *Thread, file: File) Io.Cancelable!bool { |
| 5787 | 6371 | |
| 5788 | 6372 | fn fileEnableAnsiEscapeCodes(userdata: ?*anyopaque, file: File) File.EnableAnsiEscapeCodesError!void { |
| 5789 | 6373 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5790 | | const current_thread = Thread.getCurrent(t); |
| 6374 | _ = t; |
| 5791 | 6375 | |
| 5792 | | if (is_windows) { |
| 5793 | | try current_thread.checkCancel(); |
| 6376 | if (!is_windows) { |
| 6377 | if (try supportsAnsiEscapeCodes(file)) return; |
| 6378 | return error.NotTerminalDevice; |
| 6379 | } |
| 5794 | 6380 | |
| 5795 | | // For Windows Terminal, VT Sequences processing is enabled by default. |
| 5796 | | var original_console_mode: windows.DWORD = 0; |
| 5797 | | if (windows.kernel32.GetConsoleMode(file.handle, &original_console_mode) != 0) { |
| 5798 | | if (original_console_mode & windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING != 0) return; |
| 6381 | // For Windows Terminal, VT Sequences processing is enabled by default. |
| 6382 | var original_console_mode: windows.DWORD = 0; |
| 5799 | 6383 | |
| 5800 | | // For Windows Console, VT Sequences processing support was added in Windows 10 build 14361, but disabled by default. |
| 5801 | | // https://devblogs.microsoft.com/commandline/tmux-support-arrives-for-bash-on-ubuntu-on-windows/ |
| 5802 | | // |
| 5803 | | // Note: In Microsoft's example for enabling virtual terminal processing, it |
| 5804 | | // shows attempting to enable `DISABLE_NEWLINE_AUTO_RETURN` as well: |
| 5805 | | // https://learn.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences#example-of-enabling-virtual-terminal-processing |
| 5806 | | // This is avoided because in the old Windows Console, that flag causes \n (as opposed to \r\n) |
| 5807 | | // to behave unexpectedly (the cursor moves down 1 row but remains on the same column). |
| 5808 | | // Additionally, the default console mode in Windows Terminal does not have |
| 5809 | | // `DISABLE_NEWLINE_AUTO_RETURN` set, so by only enabling `ENABLE_VIRTUAL_TERMINAL_PROCESSING` |
| 5810 | | // we end up matching the mode of Windows Terminal. |
| 5811 | | const requested_console_modes = windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING; |
| 5812 | | const console_mode = original_console_mode | requested_console_modes; |
| 5813 | | try current_thread.checkCancel(); |
| 5814 | | if (windows.kernel32.SetConsoleMode(file.handle, console_mode) != 0) return; |
| 5815 | | } |
| 5816 | | if (try isCygwinPty(current_thread, file)) return; |
| 5817 | | } else { |
| 5818 | | if (try supportsAnsiEscapeCodes(current_thread, file)) return; |
| 6384 | { |
| 6385 | const syscall: Syscall = try .start(); |
| 6386 | while (windows.kernel32.GetConsoleMode(file.handle, &original_console_mode) == 0) { |
| 6387 | switch (windows.GetLastError()) { |
| 6388 | .OPERATION_ABORTED => { |
| 6389 | try syscall.checkCancel(); |
| 6390 | continue; |
| 6391 | }, |
| 6392 | else => { |
| 6393 | syscall.finish(); |
| 6394 | if (try isCygwinPty(file)) return; |
| 6395 | return error.NotTerminalDevice; |
| 6396 | }, |
| 6397 | } |
| 6398 | } |
| 6399 | syscall.finish(); |
| 6400 | } |
| 6401 | |
| 6402 | if (original_console_mode & windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING != 0) return; |
| 6403 | |
| 6404 | // For Windows Console, VT Sequences processing support was added in Windows 10 build 14361, but disabled by default. |
| 6405 | // https://devblogs.microsoft.com/commandline/tmux-support-arrives-for-bash-on-ubuntu-on-windows/ |
| 6406 | // |
| 6407 | // Note: In Microsoft's example for enabling virtual terminal processing, it |
| 6408 | // shows attempting to enable `DISABLE_NEWLINE_AUTO_RETURN` as well: |
| 6409 | // https://learn.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences#example-of-enabling-virtual-terminal-processing |
| 6410 | // This is avoided because in the old Windows Console, that flag causes \n (as opposed to \r\n) |
| 6411 | // to behave unexpectedly (the cursor moves down 1 row but remains on the same column). |
| 6412 | // Additionally, the default console mode in Windows Terminal does not have |
| 6413 | // `DISABLE_NEWLINE_AUTO_RETURN` set, so by only enabling `ENABLE_VIRTUAL_TERMINAL_PROCESSING` |
| 6414 | // we end up matching the mode of Windows Terminal. |
| 6415 | const requested_console_modes = windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING; |
| 6416 | const console_mode = original_console_mode | requested_console_modes; |
| 6417 | |
| 6418 | { |
| 6419 | const syscall: Syscall = try .start(); |
| 6420 | while (windows.kernel32.SetConsoleMode(file.handle, console_mode) == 0) { |
| 6421 | switch (windows.GetLastError()) { |
| 6422 | .OPERATION_ABORTED => { |
| 6423 | try syscall.checkCancel(); |
| 6424 | continue; |
| 6425 | }, |
| 6426 | else => { |
| 6427 | syscall.finish(); |
| 6428 | if (try isCygwinPty(file)) return; |
| 6429 | return error.NotTerminalDevice; |
| 6430 | }, |
| 6431 | } |
| 6432 | } |
| 6433 | syscall.finish(); |
| 5819 | 6434 | } |
| 5820 | | return error.NotTerminalDevice; |
| 5821 | 6435 | } |
| 5822 | 6436 | |
| 5823 | 6437 | fn fileSupportsAnsiEscapeCodes(userdata: ?*anyopaque, file: File) Io.Cancelable!bool { |
| 5824 | 6438 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5825 | | const current_thread = Thread.getCurrent(t); |
| 5826 | | return supportsAnsiEscapeCodes(current_thread, file); |
| 6439 | _ = t; |
| 6440 | return supportsAnsiEscapeCodes(file); |
| 5827 | 6441 | } |
| 5828 | 6442 | |
| 5829 | | fn supportsAnsiEscapeCodes(current_thread: *Thread, file: File) Io.Cancelable!bool { |
| 6443 | fn supportsAnsiEscapeCodes(file: File) Io.Cancelable!bool { |
| 5830 | 6444 | if (is_windows) { |
| 5831 | | try current_thread.checkCancel(); |
| 5832 | 6445 | var console_mode: windows.DWORD = 0; |
| 5833 | | if (windows.kernel32.GetConsoleMode(file.handle, &console_mode) != 0) { |
| 5834 | | if (console_mode & windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING != 0) return true; |
| 6446 | |
| 6447 | const syscall: Syscall = try .start(); |
| 6448 | while (windows.kernel32.GetConsoleMode(file.handle, &console_mode) == 0) { |
| 6449 | switch (windows.GetLastError()) { |
| 6450 | .OPERATION_ABORTED => { |
| 6451 | try syscall.checkCancel(); |
| 6452 | continue; |
| 6453 | }, |
| 6454 | else => { |
| 6455 | syscall.finish(); |
| 6456 | break; |
| 6457 | }, |
| 6458 | } |
| 6459 | } else { |
| 6460 | syscall.finish(); |
| 6461 | if (console_mode & windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING != 0) { |
| 6462 | return true; |
| 6463 | } |
| 5835 | 6464 | } |
| 5836 | | return isCygwinPty(current_thread, file); |
| 6465 | |
| 6466 | return isCygwinPty(file); |
| 5837 | 6467 | } |
| 5838 | 6468 | |
| 5839 | 6469 | if (native_os == .wasi) { |
| ... | ... | @@ -5843,12 +6473,12 @@ fn supportsAnsiEscapeCodes(current_thread: *Thread, file: File) Io.Cancelable!bo |
| 5843 | 6473 | return false; |
| 5844 | 6474 | } |
| 5845 | 6475 | |
| 5846 | | if (try isTty(current_thread, file)) return true; |
| 6476 | if (try isTty(file)) return true; |
| 5847 | 6477 | |
| 5848 | 6478 | return false; |
| 5849 | 6479 | } |
| 5850 | 6480 | |
| 5851 | | fn isCygwinPty(current_thread: *Thread, file: File) Io.Cancelable!bool { |
| 6481 | fn isCygwinPty(file: File) Io.Cancelable!bool { |
| 5852 | 6482 | if (!is_windows) return false; |
| 5853 | 6483 | |
| 5854 | 6484 | const handle = file.handle; |
| ... | ... | @@ -5863,20 +6493,26 @@ fn isCygwinPty(current_thread: *Thread, file: File) Io.Cancelable!bool { |
| 5863 | 6493 | // This allows us to avoid the more costly NtQueryInformationFile call |
| 5864 | 6494 | // for handles that aren't named pipes. |
| 5865 | 6495 | { |
| 5866 | | try current_thread.checkCancel(); |
| 5867 | 6496 | var io_status: windows.IO_STATUS_BLOCK = undefined; |
| 5868 | 6497 | var device_info: windows.FILE.FS_DEVICE_INFORMATION = undefined; |
| 5869 | | const rc = windows.ntdll.NtQueryVolumeInformationFile( |
| 6498 | const syscall: Syscall = try .start(); |
| 6499 | while (true) switch (windows.ntdll.NtQueryVolumeInformationFile( |
| 5870 | 6500 | handle, |
| 5871 | | &io_status, |
| 5872 | | &device_info, |
| 5873 | | @sizeOf(windows.FILE.FS_DEVICE_INFORMATION), |
| 5874 | | .Device, |
| 5875 | | ); |
| 5876 | | switch (rc) { |
| 5877 | | .SUCCESS => {}, |
| 5878 | | else => return false, |
| 5879 | | } |
| 6501 | &io_status, |
| 6502 | &device_info, |
| 6503 | @sizeOf(windows.FILE.FS_DEVICE_INFORMATION), |
| 6504 | .Device, |
| 6505 | )) { |
| 6506 | .SUCCESS => break syscall.finish(), |
| 6507 | .CANCELLED => { |
| 6508 | try syscall.checkCancel(); |
| 6509 | continue; |
| 6510 | }, |
| 6511 | else => { |
| 6512 | syscall.finish(); |
| 6513 | return false; |
| 6514 | }, |
| 6515 | }; |
| 5880 | 6516 | if (device_info.DeviceType.FileDevice != .NAMED_PIPE) return false; |
| 5881 | 6517 | } |
| 5882 | 6518 | |
| ... | ... | @@ -5891,19 +6527,25 @@ fn isCygwinPty(current_thread: *Thread, file: File) Io.Cancelable!bool { |
| 5891 | 6527 | var name_info_bytes align(@alignOf(windows.FILE.NAME_INFORMATION)) = [_]u8{0} ** (name_bytes_offset + num_name_bytes); |
| 5892 | 6528 | |
| 5893 | 6529 | var io_status_block: windows.IO_STATUS_BLOCK = undefined; |
| 5894 | | try current_thread.checkCancel(); |
| 5895 | | const rc = windows.ntdll.NtQueryInformationFile( |
| 6530 | const syscall: Syscall = try .start(); |
| 6531 | while (true) switch (windows.ntdll.NtQueryInformationFile( |
| 5896 | 6532 | handle, |
| 5897 | 6533 | &io_status_block, |
| 5898 | 6534 | &name_info_bytes, |
| 5899 | 6535 | @intCast(name_info_bytes.len), |
| 5900 | 6536 | .Name, |
| 5901 | | ); |
| 5902 | | switch (rc) { |
| 5903 | | .SUCCESS => {}, |
| 6537 | )) { |
| 6538 | .SUCCESS => break syscall.finish(), |
| 6539 | .CANCELLED => { |
| 6540 | try syscall.checkCancel(); |
| 6541 | continue; |
| 6542 | }, |
| 5904 | 6543 | .INVALID_PARAMETER => unreachable, |
| 5905 | | else => return false, |
| 5906 | | } |
| 6544 | else => { |
| 6545 | syscall.finish(); |
| 6546 | return false; |
| 6547 | }, |
| 6548 | }; |
| 5907 | 6549 | |
| 5908 | 6550 | const name_info: *const windows.FILE_NAME_INFO = @ptrCast(&name_info_bytes); |
| 5909 | 6551 | const name_bytes = name_info_bytes[name_bytes_offset .. name_bytes_offset + name_info.FileNameLength]; |
| ... | ... | @@ -5916,47 +6558,49 @@ fn isCygwinPty(current_thread: *Thread, file: File) Io.Cancelable!bool { |
| 5916 | 6558 | |
| 5917 | 6559 | fn fileSetLength(userdata: ?*anyopaque, file: File, length: u64) File.SetLengthError!void { |
| 5918 | 6560 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 5919 | | const current_thread = Thread.getCurrent(t); |
| 6561 | _ = t; |
| 5920 | 6562 | |
| 5921 | 6563 | const signed_len: i64 = @bitCast(length); |
| 5922 | 6564 | if (signed_len < 0) return error.FileTooBig; // Avoid ambiguous EINVAL errors. |
| 5923 | 6565 | |
| 5924 | 6566 | if (is_windows) { |
| 5925 | | try current_thread.checkCancel(); |
| 5926 | | |
| 5927 | 6567 | var io_status_block: windows.IO_STATUS_BLOCK = undefined; |
| 5928 | 6568 | const eof_info: windows.FILE.END_OF_FILE_INFORMATION = .{ |
| 5929 | 6569 | .EndOfFile = signed_len, |
| 5930 | 6570 | }; |
| 5931 | 6571 | |
| 5932 | | const status = windows.ntdll.NtSetInformationFile( |
| 6572 | const syscall: Syscall = try .start(); |
| 6573 | while (true) switch (windows.ntdll.NtSetInformationFile( |
| 5933 | 6574 | file.handle, |
| 5934 | 6575 | &io_status_block, |
| 5935 | 6576 | &eof_info, |
| 5936 | 6577 | @sizeOf(windows.FILE.END_OF_FILE_INFORMATION), |
| 5937 | 6578 | .EndOfFile, |
| 5938 | | ); |
| 5939 | | switch (status) { |
| 5940 | | .SUCCESS => return, |
| 5941 | | .INVALID_HANDLE => |err| return windows.statusBug(err), // Handle not open for writing. |
| 5942 | | .ACCESS_DENIED => return error.AccessDenied, |
| 5943 | | .USER_MAPPED_FILE => return error.AccessDenied, |
| 5944 | | .INVALID_PARAMETER => return error.FileTooBig, |
| 5945 | | else => return windows.unexpectedStatus(status), |
| 5946 | | } |
| 6579 | )) { |
| 6580 | .SUCCESS => return syscall.finish(), |
| 6581 | .CANCELLED => { |
| 6582 | try syscall.checkCancel(); |
| 6583 | continue; |
| 6584 | }, |
| 6585 | .INVALID_HANDLE => |err| return syscall.ntstatusBug(err), // Handle not open for writing. |
| 6586 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 6587 | .USER_MAPPED_FILE => return syscall.fail(error.AccessDenied), |
| 6588 | .INVALID_PARAMETER => return syscall.fail(error.FileTooBig), |
| 6589 | else => |status| return syscall.unexpectedNtstatus(status), |
| 6590 | }; |
| 5947 | 6591 | } |
| 5948 | 6592 | |
| 5949 | 6593 | if (native_os == .wasi and !builtin.link_libc) { |
| 5950 | | try current_thread.beginSyscall(); |
| 6594 | const syscall: Syscall = try .start(); |
| 5951 | 6595 | while (true) { |
| 5952 | 6596 | switch (std.os.wasi.fd_filestat_set_size(file.handle, length)) { |
| 5953 | | .SUCCESS => return current_thread.endSyscall(), |
| 6597 | .SUCCESS => return syscall.finish(), |
| 5954 | 6598 | .INTR => { |
| 5955 | | try current_thread.checkCancel(); |
| 6599 | try syscall.checkCancel(); |
| 5956 | 6600 | continue; |
| 5957 | 6601 | }, |
| 5958 | 6602 | else => |e| { |
| 5959 | | current_thread.endSyscall(); |
| 6603 | syscall.finish(); |
| 5960 | 6604 | switch (e) { |
| 5961 | 6605 | .FBIG => return error.FileTooBig, |
| 5962 | 6606 | .IO => return error.InputOutput, |
| ... | ... | @@ -5972,16 +6616,16 @@ fn fileSetLength(userdata: ?*anyopaque, file: File, length: u64) File.SetLengthE |
| 5972 | 6616 | } |
| 5973 | 6617 | } |
| 5974 | 6618 | |
| 5975 | | try current_thread.beginSyscall(); |
| 6619 | const syscall: Syscall = try .start(); |
| 5976 | 6620 | while (true) { |
| 5977 | 6621 | switch (posix.errno(ftruncate_sym(file.handle, signed_len))) { |
| 5978 | | .SUCCESS => return current_thread.endSyscall(), |
| 6622 | .SUCCESS => return syscall.finish(), |
| 5979 | 6623 | .INTR => { |
| 5980 | | try current_thread.checkCancel(); |
| 6624 | try syscall.checkCancel(); |
| 5981 | 6625 | continue; |
| 5982 | 6626 | }, |
| 5983 | 6627 | else => |e| { |
| 5984 | | current_thread.endSyscall(); |
| 6628 | syscall.finish(); |
| 5985 | 6629 | switch (e) { |
| 5986 | 6630 | .FBIG => return error.FileTooBig, |
| 5987 | 6631 | .IO => return error.InputOutput, |
| ... | ... | @@ -5999,19 +6643,18 @@ fn fileSetLength(userdata: ?*anyopaque, file: File, length: u64) File.SetLengthE |
| 5999 | 6643 | fn fileSetOwner(userdata: ?*anyopaque, file: File, owner: ?File.Uid, group: ?File.Gid) File.SetOwnerError!void { |
| 6000 | 6644 | if (!have_fchown) return error.Unexpected; // Unsupported OS, don't call this function. |
| 6001 | 6645 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6002 | | const current_thread = Thread.getCurrent(t); |
| 6646 | _ = t; |
| 6003 | 6647 | const uid = owner orelse ~@as(posix.uid_t, 0); |
| 6004 | 6648 | const gid = group orelse ~@as(posix.gid_t, 0); |
| 6005 | | return posixFchown(current_thread, file.handle, uid, gid); |
| 6649 | return posixFchown(file.handle, uid, gid); |
| 6006 | 6650 | } |
| 6007 | 6651 | |
| 6008 | 6652 | fn fileSetPermissions(userdata: ?*anyopaque, file: File, permissions: File.Permissions) File.SetPermissionsError!void { |
| 6009 | 6653 | if (@sizeOf(File.Permissions) == 0) return; |
| 6010 | 6654 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6011 | | const current_thread = Thread.getCurrent(t); |
| 6655 | _ = t; |
| 6012 | 6656 | switch (native_os) { |
| 6013 | 6657 | .windows => { |
| 6014 | | try current_thread.checkCancel(); |
| 6015 | 6658 | var io_status_block: windows.IO_STATUS_BLOCK = undefined; |
| 6016 | 6659 | const info: windows.FILE.BASIC_INFORMATION = .{ |
| 6017 | 6660 | .CreationTime = 0, |
| ... | ... | @@ -6020,37 +6663,41 @@ fn fileSetPermissions(userdata: ?*anyopaque, file: File, permissions: File.Permi |
| 6020 | 6663 | .ChangeTime = 0, |
| 6021 | 6664 | .FileAttributes = permissions.toAttributes(), |
| 6022 | 6665 | }; |
| 6023 | | const status = windows.ntdll.NtSetInformationFile( |
| 6666 | const syscall: Syscall = try .start(); |
| 6667 | while (true) switch (windows.ntdll.NtSetInformationFile( |
| 6024 | 6668 | file.handle, |
| 6025 | 6669 | &io_status_block, |
| 6026 | 6670 | &info, |
| 6027 | 6671 | @sizeOf(windows.FILE.BASIC_INFORMATION), |
| 6028 | 6672 | .Basic, |
| 6029 | | ); |
| 6030 | | switch (status) { |
| 6031 | | .SUCCESS => return, |
| 6032 | | .INVALID_HANDLE => |err| return windows.statusBug(err), |
| 6033 | | .ACCESS_DENIED => return error.AccessDenied, |
| 6034 | | else => return windows.unexpectedStatus(status), |
| 6035 | | } |
| 6673 | )) { |
| 6674 | .SUCCESS => return syscall.finish(), |
| 6675 | .CANCELLED => { |
| 6676 | try syscall.checkCancel(); |
| 6677 | continue; |
| 6678 | }, |
| 6679 | .INVALID_HANDLE => |err| return syscall.ntstatusBug(err), |
| 6680 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 6681 | else => |status| return syscall.unexpectedNtstatus(status), |
| 6682 | }; |
| 6036 | 6683 | }, |
| 6037 | 6684 | .wasi => return error.Unexpected, // Unsupported OS. |
| 6038 | | else => return setPermissionsPosix(current_thread, file.handle, permissions.toMode()), |
| 6685 | else => return setPermissionsPosix(file.handle, permissions.toMode()), |
| 6039 | 6686 | } |
| 6040 | 6687 | } |
| 6041 | 6688 | |
| 6042 | | fn setPermissionsPosix(current_thread: *Thread, fd: posix.fd_t, mode: posix.mode_t) File.SetPermissionsError!void { |
| 6689 | fn setPermissionsPosix(fd: posix.fd_t, mode: posix.mode_t) File.SetPermissionsError!void { |
| 6043 | 6690 | comptime assert(have_fchmod); |
| 6044 | | try current_thread.beginSyscall(); |
| 6691 | const syscall: Syscall = try .start(); |
| 6045 | 6692 | while (true) { |
| 6046 | 6693 | switch (posix.errno(posix.system.fchmod(fd, mode))) { |
| 6047 | | .SUCCESS => return current_thread.endSyscall(), |
| 6694 | .SUCCESS => return syscall.finish(), |
| 6048 | 6695 | .INTR => { |
| 6049 | | try current_thread.checkCancel(); |
| 6696 | try syscall.checkCancel(); |
| 6050 | 6697 | continue; |
| 6051 | 6698 | }, |
| 6052 | 6699 | else => |e| { |
| 6053 | | current_thread.endSyscall(); |
| 6700 | syscall.finish(); |
| 6054 | 6701 | switch (e) { |
| 6055 | 6702 | .BADF => |err| return errnoBug(err), |
| 6056 | 6703 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -6077,7 +6724,7 @@ fn dirSetTimestamps( |
| 6077 | 6724 | options: Dir.SetTimestampsOptions, |
| 6078 | 6725 | ) Dir.SetTimestampsError!void { |
| 6079 | 6726 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6080 | | const current_thread = Thread.getCurrent(t); |
| 6727 | _ = t; |
| 6081 | 6728 | |
| 6082 | 6729 | if (is_windows) { |
| 6083 | 6730 | @panic("TODO implement dirSetTimestamps windows"); |
| ... | ... | @@ -6101,20 +6748,20 @@ fn dirSetTimestamps( |
| 6101 | 6748 | var path_buffer: [posix.PATH_MAX]u8 = undefined; |
| 6102 | 6749 | const sub_path_posix = try pathToPosix(sub_path, &path_buffer); |
| 6103 | 6750 | |
| 6104 | | try current_thread.beginSyscall(); |
| 6751 | const syscall: Syscall = try .start(); |
| 6105 | 6752 | while (true) switch (posix.errno(posix.system.utimensat(dir.handle, sub_path_posix, times, flags))) { |
| 6106 | | .SUCCESS => return current_thread.endSyscall(), |
| 6753 | .SUCCESS => return syscall.finish(), |
| 6107 | 6754 | .INTR => { |
| 6108 | | try current_thread.checkCancel(); |
| 6755 | try syscall.checkCancel(); |
| 6109 | 6756 | continue; |
| 6110 | 6757 | }, |
| 6111 | | .BADF => |err| return current_thread.endSyscallErrnoBug(err), // always a race condition |
| 6112 | | .FAULT => |err| return current_thread.endSyscallErrnoBug(err), |
| 6113 | | .INVAL => |err| return current_thread.endSyscallErrnoBug(err), |
| 6114 | | .ACCES => return current_thread.endSyscallError(error.AccessDenied), |
| 6115 | | .PERM => return current_thread.endSyscallError(error.PermissionDenied), |
| 6116 | | .ROFS => return current_thread.endSyscallError(error.ReadOnlyFileSystem), |
| 6117 | | else => |err| return current_thread.endSyscallUnexpectedErrno(err), |
| 6758 | .BADF => |err| return syscall.errnoBug(err), // always a race condition |
| 6759 | .FAULT => |err| return syscall.errnoBug(err), |
| 6760 | .INVAL => |err| return syscall.errnoBug(err), |
| 6761 | .ACCES => return syscall.fail(error.AccessDenied), |
| 6762 | .PERM => return syscall.fail(error.PermissionDenied), |
| 6763 | .ROFS => return syscall.fail(error.ReadOnlyFileSystem), |
| 6764 | else => |err| return syscall.unexpectedErrno(err), |
| 6118 | 6765 | }; |
| 6119 | 6766 | } |
| 6120 | 6767 | |
| ... | ... | @@ -6124,11 +6771,9 @@ fn fileSetTimestamps( |
| 6124 | 6771 | options: File.SetTimestampsOptions, |
| 6125 | 6772 | ) File.SetTimestampsError!void { |
| 6126 | 6773 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6127 | | const current_thread = Thread.getCurrent(t); |
| 6774 | _ = t; |
| 6128 | 6775 | |
| 6129 | 6776 | if (is_windows) { |
| 6130 | | try current_thread.checkCancel(); |
| 6131 | | |
| 6132 | 6777 | var access_time_buffer: windows.FILETIME = undefined; |
| 6133 | 6778 | var modify_time_buffer: windows.FILETIME = undefined; |
| 6134 | 6779 | var system_time_buffer: windows.LARGE_INTEGER = undefined; |
| ... | ... | @@ -6156,13 +6801,22 @@ fn fileSetTimestamps( |
| 6156 | 6801 | }; |
| 6157 | 6802 | |
| 6158 | 6803 | // https://github.com/ziglang/zig/issues/1840 |
| 6159 | | const rc = windows.kernel32.SetFileTime(file.handle, null, access_ptr, modify_ptr); |
| 6160 | | if (rc == 0) { |
| 6161 | | switch (windows.GetLastError()) { |
| 6162 | | else => |err| return windows.unexpectedError(err), |
| 6804 | const syscall: Syscall = try .start(); |
| 6805 | while (true) { |
| 6806 | switch (windows.kernel32.SetFileTime(file.handle, null, access_ptr, modify_ptr)) { |
| 6807 | 0 => switch (windows.GetLastError()) { |
| 6808 | .OPERATION_ABORTED => { |
| 6809 | try syscall.checkCancel(); |
| 6810 | continue; |
| 6811 | }, |
| 6812 | else => |err| { |
| 6813 | syscall.finish(); |
| 6814 | return windows.unexpectedError(err); |
| 6815 | }, |
| 6816 | }, |
| 6817 | else => return syscall.finish(), |
| 6163 | 6818 | } |
| 6164 | 6819 | } |
| 6165 | | return; |
| 6166 | 6820 | } |
| 6167 | 6821 | |
| 6168 | 6822 | if (native_os == .wasi and !builtin.link_libc) { |
| ... | ... | @@ -6188,20 +6842,20 @@ fn fileSetTimestamps( |
| 6188 | 6842 | }, |
| 6189 | 6843 | } |
| 6190 | 6844 | |
| 6191 | | try current_thread.beginSyscall(); |
| 6845 | const syscall: Syscall = try .start(); |
| 6192 | 6846 | while (true) switch (std.os.wasi.fd_filestat_set_times(file.handle, atime, mtime, flags)) { |
| 6193 | | .SUCCESS => return current_thread.endSyscall(), |
| 6847 | .SUCCESS => return syscall.finish(), |
| 6194 | 6848 | .INTR => { |
| 6195 | | try current_thread.checkCancel(); |
| 6849 | try syscall.checkCancel(); |
| 6196 | 6850 | continue; |
| 6197 | 6851 | }, |
| 6198 | | .BADF => |err| return current_thread.endSyscallErrnoBug(err), // File descriptor use-after-free. |
| 6199 | | .FAULT => |err| return current_thread.endSyscallErrnoBug(err), |
| 6200 | | .INVAL => |err| return current_thread.endSyscallErrnoBug(err), |
| 6201 | | .ACCES => return current_thread.endSyscallError(error.AccessDenied), |
| 6202 | | .PERM => return current_thread.endSyscallError(error.PermissionDenied), |
| 6203 | | .ROFS => return current_thread.endSyscallError(error.ReadOnlyFileSystem), |
| 6204 | | else => |err| return current_thread.endSyscallUnexpectedErrno(err), |
| 6852 | .BADF => |err| return syscall.errnoBug(err), // File descriptor use-after-free. |
| 6853 | .FAULT => |err| return syscall.errnoBug(err), |
| 6854 | .INVAL => |err| return syscall.errnoBug(err), |
| 6855 | .ACCES => return syscall.fail(error.AccessDenied), |
| 6856 | .PERM => return syscall.fail(error.PermissionDenied), |
| 6857 | .ROFS => return syscall.fail(error.ReadOnlyFileSystem), |
| 6858 | else => |err| return syscall.unexpectedErrno(err), |
| 6205 | 6859 | }; |
| 6206 | 6860 | } |
| 6207 | 6861 | |
| ... | ... | @@ -6214,20 +6868,20 @@ fn fileSetTimestamps( |
| 6214 | 6868 | break :p ×_buffer; |
| 6215 | 6869 | }; |
| 6216 | 6870 | |
| 6217 | | try current_thread.beginSyscall(); |
| 6871 | const syscall: Syscall = try .start(); |
| 6218 | 6872 | while (true) switch (posix.errno(posix.system.futimens(file.handle, times))) { |
| 6219 | | .SUCCESS => return current_thread.endSyscall(), |
| 6873 | .SUCCESS => return syscall.finish(), |
| 6220 | 6874 | .INTR => { |
| 6221 | | try current_thread.checkCancel(); |
| 6875 | try syscall.checkCancel(); |
| 6222 | 6876 | continue; |
| 6223 | 6877 | }, |
| 6224 | | .BADF => |err| return current_thread.endSyscallErrnoBug(err), // always a race condition |
| 6225 | | .FAULT => |err| return current_thread.endSyscallErrnoBug(err), |
| 6226 | | .INVAL => |err| return current_thread.endSyscallErrnoBug(err), |
| 6227 | | .ACCES => return current_thread.endSyscallError(error.AccessDenied), |
| 6228 | | .PERM => return current_thread.endSyscallError(error.PermissionDenied), |
| 6229 | | .ROFS => return current_thread.endSyscallError(error.ReadOnlyFileSystem), |
| 6230 | | else => |err| return current_thread.endSyscallUnexpectedErrno(err), |
| 6878 | .BADF => |err| return syscall.errnoBug(err), // always a race condition |
| 6879 | .FAULT => |err| return syscall.errnoBug(err), |
| 6880 | .INVAL => |err| return syscall.errnoBug(err), |
| 6881 | .ACCES => return syscall.fail(error.AccessDenied), |
| 6882 | .PERM => return syscall.fail(error.PermissionDenied), |
| 6883 | .ROFS => return syscall.fail(error.ReadOnlyFileSystem), |
| 6884 | else => |err| return syscall.unexpectedErrno(err), |
| 6231 | 6885 | }; |
| 6232 | 6886 | } |
| 6233 | 6887 | |
| ... | ... | @@ -6237,34 +6891,33 @@ const windows_lock_range_len: windows.LARGE_INTEGER = 1; |
| 6237 | 6891 | fn fileLock(userdata: ?*anyopaque, file: File, lock: File.Lock) File.LockError!void { |
| 6238 | 6892 | if (native_os == .wasi) return error.FileLocksUnsupported; |
| 6239 | 6893 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6240 | | const current_thread = Thread.getCurrent(t); |
| 6894 | _ = t; |
| 6241 | 6895 | |
| 6242 | 6896 | if (is_windows) { |
| 6243 | 6897 | const exclusive = switch (lock) { |
| 6244 | 6898 | .none => { |
| 6245 | 6899 | // To match the non-Windows behavior, unlock |
| 6246 | 6900 | var io_status_block: windows.IO_STATUS_BLOCK = undefined; |
| 6247 | | const status = windows.ntdll.NtUnlockFile( |
| 6901 | while (true) switch (windows.ntdll.NtUnlockFile( |
| 6248 | 6902 | file.handle, |
| 6249 | 6903 | &io_status_block, |
| 6250 | 6904 | &windows_lock_range_off, |
| 6251 | 6905 | &windows_lock_range_len, |
| 6252 | 6906 | 0, |
| 6253 | | ); |
| 6254 | | switch (status) { |
| 6255 | | .SUCCESS => {}, |
| 6256 | | .RANGE_NOT_LOCKED => {}, |
| 6907 | )) { |
| 6908 | .SUCCESS => return, |
| 6909 | .CANCELLED => continue, |
| 6910 | .RANGE_NOT_LOCKED => return, |
| 6257 | 6911 | .ACCESS_VIOLATION => |err| return windows.statusBug(err), // bad io_status_block pointer |
| 6258 | | else => return windows.unexpectedStatus(status), |
| 6259 | | } |
| 6260 | | return; |
| 6912 | else => |status| return windows.unexpectedStatus(status), |
| 6913 | }; |
| 6261 | 6914 | }, |
| 6262 | 6915 | .shared => false, |
| 6263 | 6916 | .exclusive => true, |
| 6264 | 6917 | }; |
| 6265 | | try current_thread.checkCancel(); |
| 6266 | 6918 | var io_status_block: windows.IO_STATUS_BLOCK = undefined; |
| 6267 | | const status = windows.ntdll.NtLockFile( |
| 6919 | const syscall: Syscall = try .start(); |
| 6920 | while (true) switch (windows.ntdll.NtLockFile( |
| 6268 | 6921 | file.handle, |
| 6269 | 6922 | null, |
| 6270 | 6923 | null, |
| ... | ... | @@ -6275,14 +6928,17 @@ fn fileLock(userdata: ?*anyopaque, file: File, lock: File.Lock) File.LockError!v |
| 6275 | 6928 | null, |
| 6276 | 6929 | windows.FALSE, |
| 6277 | 6930 | @intFromBool(exclusive), |
| 6278 | | ); |
| 6279 | | switch (status) { |
| 6280 | | .SUCCESS => return, |
| 6281 | | .INSUFFICIENT_RESOURCES => return error.SystemResources, |
| 6282 | | .LOCK_NOT_GRANTED => |err| return windows.statusBug(err), // passed FailImmediately=false |
| 6283 | | .ACCESS_VIOLATION => |err| return windows.statusBug(err), // bad io_status_block pointer |
| 6284 | | else => return windows.unexpectedStatus(status), |
| 6285 | | } |
| 6931 | )) { |
| 6932 | .SUCCESS => return syscall.finish(), |
| 6933 | .CANCELLED => { |
| 6934 | try syscall.checkCancel(); |
| 6935 | continue; |
| 6936 | }, |
| 6937 | .INSUFFICIENT_RESOURCES => return syscall.fail(error.SystemResources), |
| 6938 | .LOCK_NOT_GRANTED => |err| return syscall.ntstatusBug(err), // passed FailImmediately=false |
| 6939 | .ACCESS_VIOLATION => |err| return syscall.ntstatusBug(err), // bad io_status_block pointer |
| 6940 | else => |status| return syscall.unexpectedNtstatus(status), |
| 6941 | }; |
| 6286 | 6942 | } |
| 6287 | 6943 | |
| 6288 | 6944 | const operation: i32 = switch (lock) { |
| ... | ... | @@ -6290,16 +6946,16 @@ fn fileLock(userdata: ?*anyopaque, file: File, lock: File.Lock) File.LockError!v |
| 6290 | 6946 | .shared => posix.LOCK.SH, |
| 6291 | 6947 | .exclusive => posix.LOCK.EX, |
| 6292 | 6948 | }; |
| 6293 | | try current_thread.beginSyscall(); |
| 6949 | const syscall: Syscall = try .start(); |
| 6294 | 6950 | while (true) { |
| 6295 | 6951 | switch (posix.errno(posix.system.flock(file.handle, operation))) { |
| 6296 | | .SUCCESS => return current_thread.endSyscall(), |
| 6952 | .SUCCESS => return syscall.finish(), |
| 6297 | 6953 | .INTR => { |
| 6298 | | try current_thread.checkCancel(); |
| 6954 | try syscall.checkCancel(); |
| 6299 | 6955 | continue; |
| 6300 | 6956 | }, |
| 6301 | 6957 | else => |e| { |
| 6302 | | current_thread.endSyscall(); |
| 6958 | syscall.finish(); |
| 6303 | 6959 | switch (e) { |
| 6304 | 6960 | .BADF => |err| return errnoBug(err), |
| 6305 | 6961 | .INVAL => |err| return errnoBug(err), // invalid parameters |
| ... | ... | @@ -6316,33 +6972,33 @@ fn fileLock(userdata: ?*anyopaque, file: File, lock: File.Lock) File.LockError!v |
| 6316 | 6972 | fn fileTryLock(userdata: ?*anyopaque, file: File, lock: File.Lock) File.LockError!bool { |
| 6317 | 6973 | if (native_os == .wasi) return error.FileLocksUnsupported; |
| 6318 | 6974 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6319 | | const current_thread = Thread.getCurrent(t); |
| 6975 | _ = t; |
| 6320 | 6976 | |
| 6321 | 6977 | if (is_windows) { |
| 6322 | 6978 | const exclusive = switch (lock) { |
| 6323 | 6979 | .none => { |
| 6324 | 6980 | // To match the non-Windows behavior, unlock |
| 6325 | 6981 | var io_status_block: windows.IO_STATUS_BLOCK = undefined; |
| 6326 | | const status = windows.ntdll.NtUnlockFile( |
| 6982 | while (true) switch (windows.ntdll.NtUnlockFile( |
| 6327 | 6983 | file.handle, |
| 6328 | 6984 | &io_status_block, |
| 6329 | 6985 | &windows_lock_range_off, |
| 6330 | 6986 | &windows_lock_range_len, |
| 6331 | 6987 | 0, |
| 6332 | | ); |
| 6333 | | switch (status) { |
| 6988 | )) { |
| 6334 | 6989 | .SUCCESS => return true, |
| 6990 | .CANCELLED => continue, |
| 6335 | 6991 | .RANGE_NOT_LOCKED => return false, |
| 6336 | 6992 | .ACCESS_VIOLATION => |err| return windows.statusBug(err), // bad io_status_block pointer |
| 6337 | | else => return windows.unexpectedStatus(status), |
| 6338 | | } |
| 6993 | else => |status| return windows.unexpectedStatus(status), |
| 6994 | }; |
| 6339 | 6995 | }, |
| 6340 | 6996 | .shared => false, |
| 6341 | 6997 | .exclusive => true, |
| 6342 | 6998 | }; |
| 6343 | | try current_thread.checkCancel(); |
| 6344 | 6999 | var io_status_block: windows.IO_STATUS_BLOCK = undefined; |
| 6345 | | const status = windows.ntdll.NtLockFile( |
| 7000 | const syscall: Syscall = try .start(); |
| 7001 | while (true) switch (windows.ntdll.NtLockFile( |
| 6346 | 7002 | file.handle, |
| 6347 | 7003 | null, |
| 6348 | 7004 | null, |
| ... | ... | @@ -6353,14 +7009,23 @@ fn fileTryLock(userdata: ?*anyopaque, file: File, lock: File.Lock) File.LockErro |
| 6353 | 7009 | null, |
| 6354 | 7010 | windows.TRUE, |
| 6355 | 7011 | @intFromBool(exclusive), |
| 6356 | | ); |
| 6357 | | switch (status) { |
| 6358 | | .SUCCESS => return true, |
| 6359 | | .INSUFFICIENT_RESOURCES => return error.SystemResources, |
| 6360 | | .LOCK_NOT_GRANTED => return false, |
| 6361 | | .ACCESS_VIOLATION => |err| return windows.statusBug(err), // bad io_status_block pointer |
| 6362 | | else => return windows.unexpectedStatus(status), |
| 6363 | | } |
| 7012 | )) { |
| 7013 | .SUCCESS => { |
| 7014 | syscall.finish(); |
| 7015 | return true; |
| 7016 | }, |
| 7017 | .LOCK_NOT_GRANTED => { |
| 7018 | syscall.finish(); |
| 7019 | return false; |
| 7020 | }, |
| 7021 | .CANCELLED => { |
| 7022 | try syscall.checkCancel(); |
| 7023 | continue; |
| 7024 | }, |
| 7025 | .INSUFFICIENT_RESOURCES => return syscall.fail(error.SystemResources), |
| 7026 | .ACCESS_VIOLATION => |err| return syscall.ntstatusBug(err), // bad io_status_block pointer |
| 7027 | else => |status| return syscall.unexpectedNtstatus(status), |
| 7028 | }; |
| 6364 | 7029 | } |
| 6365 | 7030 | |
| 6366 | 7031 | const operation: i32 = switch (lock) { |
| ... | ... | @@ -6368,23 +7033,23 @@ fn fileTryLock(userdata: ?*anyopaque, file: File, lock: File.Lock) File.LockErro |
| 6368 | 7033 | .shared => posix.LOCK.SH | posix.LOCK.NB, |
| 6369 | 7034 | .exclusive => posix.LOCK.EX | posix.LOCK.NB, |
| 6370 | 7035 | }; |
| 6371 | | try current_thread.beginSyscall(); |
| 7036 | const syscall: Syscall = try .start(); |
| 6372 | 7037 | while (true) { |
| 6373 | 7038 | switch (posix.errno(posix.system.flock(file.handle, operation))) { |
| 6374 | 7039 | .SUCCESS => { |
| 6375 | | current_thread.endSyscall(); |
| 7040 | syscall.finish(); |
| 6376 | 7041 | return true; |
| 6377 | 7042 | }, |
| 6378 | 7043 | .INTR => { |
| 6379 | | try current_thread.checkCancel(); |
| 7044 | try syscall.checkCancel(); |
| 6380 | 7045 | continue; |
| 6381 | 7046 | }, |
| 6382 | 7047 | .AGAIN => { |
| 6383 | | current_thread.endSyscall(); |
| 7048 | syscall.finish(); |
| 6384 | 7049 | return false; |
| 6385 | 7050 | }, |
| 6386 | 7051 | else => |e| { |
| 6387 | | current_thread.endSyscall(); |
| 7052 | syscall.finish(); |
| 6388 | 7053 | switch (e) { |
| 6389 | 7054 | .BADF => |err| return errnoBug(err), |
| 6390 | 7055 | .INVAL => |err| return errnoBug(err), // invalid parameters |
| ... | ... | @@ -6404,20 +7069,19 @@ fn fileUnlock(userdata: ?*anyopaque, file: File) void { |
| 6404 | 7069 | |
| 6405 | 7070 | if (is_windows) { |
| 6406 | 7071 | var io_status_block: windows.IO_STATUS_BLOCK = undefined; |
| 6407 | | const status = windows.ntdll.NtUnlockFile( |
| 7072 | while (true) switch (windows.ntdll.NtUnlockFile( |
| 6408 | 7073 | file.handle, |
| 6409 | 7074 | &io_status_block, |
| 6410 | 7075 | &windows_lock_range_off, |
| 6411 | 7076 | &windows_lock_range_len, |
| 6412 | 7077 | 0, |
| 6413 | | ); |
| 6414 | | if (is_debug) switch (status) { |
| 6415 | | .SUCCESS => {}, |
| 6416 | | .RANGE_NOT_LOCKED => unreachable, // Function asserts unlocked. |
| 6417 | | .ACCESS_VIOLATION => unreachable, // bad io_status_block pointer |
| 6418 | | else => unreachable, // Resource deallocation must succeed. |
| 7078 | )) { |
| 7079 | .SUCCESS => return, |
| 7080 | .CANCELLED => continue, |
| 7081 | .RANGE_NOT_LOCKED => if (is_debug) unreachable else return, // Function asserts unlocked. |
| 7082 | .ACCESS_VIOLATION => if (is_debug) unreachable else return, // bad io_status_block pointer |
| 7083 | else => if (is_debug) unreachable else return, // Resource deallocation must succeed. |
| 6419 | 7084 | }; |
| 6420 | | return; |
| 6421 | 7085 | } |
| 6422 | 7086 | |
| 6423 | 7087 | while (true) { |
| ... | ... | @@ -6437,17 +7101,17 @@ fn fileUnlock(userdata: ?*anyopaque, file: File) void { |
| 6437 | 7101 | fn fileDowngradeLock(userdata: ?*anyopaque, file: File) File.DowngradeLockError!void { |
| 6438 | 7102 | if (native_os == .wasi) return; |
| 6439 | 7103 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6440 | | const current_thread = Thread.getCurrent(t); |
| 7104 | _ = t; |
| 6441 | 7105 | |
| 6442 | 7106 | if (is_windows) { |
| 6443 | | try current_thread.checkCancel(); |
| 6444 | 7107 | // On Windows it works like a semaphore + exclusivity flag. To |
| 6445 | 7108 | // implement this function, we first obtain another lock in shared |
| 6446 | 7109 | // mode. This changes the exclusivity flag, but increments the |
| 6447 | 7110 | // semaphore to 2. So we follow up with an NtUnlockFile which |
| 6448 | 7111 | // decrements the semaphore but does not modify the exclusivity flag. |
| 6449 | 7112 | var io_status_block: windows.IO_STATUS_BLOCK = undefined; |
| 6450 | | switch (windows.ntdll.NtLockFile( |
| 7113 | const syscall: Syscall = try .start(); |
| 7114 | while (true) switch (windows.ntdll.NtLockFile( |
| 6451 | 7115 | file.handle, |
| 6452 | 7116 | null, |
| 6453 | 7117 | null, |
| ... | ... | @@ -6459,43 +7123,46 @@ fn fileDowngradeLock(userdata: ?*anyopaque, file: File) File.DowngradeLockError! |
| 6459 | 7123 | windows.TRUE, |
| 6460 | 7124 | windows.FALSE, |
| 6461 | 7125 | )) { |
| 6462 | | .SUCCESS => {}, |
| 6463 | | .INSUFFICIENT_RESOURCES => |err| return windows.statusBug(err), |
| 6464 | | .LOCK_NOT_GRANTED => |err| return windows.statusBug(err), // File was not locked in exclusive mode. |
| 6465 | | .ACCESS_VIOLATION => |err| return windows.statusBug(err), // bad io_status_block pointer |
| 6466 | | else => |status| return windows.unexpectedStatus(status), |
| 6467 | | } |
| 6468 | | const status = windows.ntdll.NtUnlockFile( |
| 7126 | .SUCCESS => break syscall.finish(), |
| 7127 | .CANCELLED => { |
| 7128 | try syscall.checkCancel(); |
| 7129 | continue; |
| 7130 | }, |
| 7131 | .INSUFFICIENT_RESOURCES => |err| return syscall.ntstatusBug(err), |
| 7132 | .LOCK_NOT_GRANTED => |err| return syscall.ntstatusBug(err), // File was not locked in exclusive mode. |
| 7133 | .ACCESS_VIOLATION => |err| return syscall.ntstatusBug(err), // bad io_status_block pointer |
| 7134 | else => |status| return syscall.unexpectedNtstatus(status), |
| 7135 | }; |
| 7136 | while (true) switch (windows.ntdll.NtUnlockFile( |
| 6469 | 7137 | file.handle, |
| 6470 | 7138 | &io_status_block, |
| 6471 | 7139 | &windows_lock_range_off, |
| 6472 | 7140 | &windows_lock_range_len, |
| 6473 | 7141 | 0, |
| 6474 | | ); |
| 6475 | | if (is_debug) switch (status) { |
| 6476 | | .SUCCESS => {}, |
| 6477 | | .RANGE_NOT_LOCKED => unreachable, // File was not locked. |
| 6478 | | .ACCESS_VIOLATION => unreachable, // bad io_status_block pointer |
| 6479 | | else => unreachable, // Resource deallocation must succeed. |
| 7142 | )) { |
| 7143 | .SUCCESS => return, |
| 7144 | .CANCELLED => continue, |
| 7145 | .RANGE_NOT_LOCKED => if (is_debug) unreachable else return, // File was not locked. |
| 7146 | .ACCESS_VIOLATION => if (is_debug) unreachable else return, // bad io_status_block pointer |
| 7147 | else => if (is_debug) unreachable else return, // Resource deallocation must succeed. |
| 6480 | 7148 | }; |
| 6481 | | return; |
| 6482 | 7149 | } |
| 6483 | 7150 | |
| 6484 | 7151 | const operation = posix.LOCK.SH | posix.LOCK.NB; |
| 6485 | 7152 | |
| 6486 | | try current_thread.beginSyscall(); |
| 7153 | const syscall: Syscall = try .start(); |
| 6487 | 7154 | while (true) { |
| 6488 | 7155 | switch (posix.errno(posix.system.flock(file.handle, operation))) { |
| 6489 | 7156 | .SUCCESS => { |
| 6490 | | current_thread.endSyscall(); |
| 7157 | syscall.finish(); |
| 6491 | 7158 | return; |
| 6492 | 7159 | }, |
| 6493 | 7160 | .INTR => { |
| 6494 | | try current_thread.checkCancel(); |
| 7161 | try syscall.checkCancel(); |
| 6495 | 7162 | continue; |
| 6496 | 7163 | }, |
| 6497 | 7164 | else => |e| { |
| 6498 | | current_thread.endSyscall(); |
| 7165 | syscall.finish(); |
| 6499 | 7166 | switch (e) { |
| 6500 | 7167 | .AGAIN => |err| return errnoBug(err), // File was not locked in exclusive mode. |
| 6501 | 7168 | .BADF => |err| return errnoBug(err), |
| ... | ... | @@ -6517,7 +7184,7 @@ fn dirOpenDirWasi( |
| 6517 | 7184 | ) Dir.OpenError!Dir { |
| 6518 | 7185 | if (builtin.link_libc) return dirOpenDirPosix(userdata, dir, sub_path, options); |
| 6519 | 7186 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6520 | | const current_thread = Thread.getCurrent(t); |
| 7187 | _ = t; |
| 6521 | 7188 | const wasi = std.os.wasi; |
| 6522 | 7189 | |
| 6523 | 7190 | var base: std.os.wasi.rights_t = .{ |
| ... | ... | @@ -6547,19 +7214,19 @@ fn dirOpenDirWasi( |
| 6547 | 7214 | const oflags: wasi.oflags_t = .{ .DIRECTORY = true }; |
| 6548 | 7215 | const fdflags: wasi.fdflags_t = .{}; |
| 6549 | 7216 | var fd: posix.fd_t = undefined; |
| 6550 | | try current_thread.beginSyscall(); |
| 7217 | const syscall: Syscall = try .start(); |
| 6551 | 7218 | while (true) { |
| 6552 | 7219 | switch (wasi.path_open(dir.handle, lookup_flags, sub_path.ptr, sub_path.len, oflags, base, base, fdflags, &fd)) { |
| 6553 | 7220 | .SUCCESS => { |
| 6554 | | current_thread.endSyscall(); |
| 7221 | syscall.finish(); |
| 6555 | 7222 | return .{ .handle = fd }; |
| 6556 | 7223 | }, |
| 6557 | 7224 | .INTR => { |
| 6558 | | try current_thread.checkCancel(); |
| 7225 | try syscall.checkCancel(); |
| 6559 | 7226 | continue; |
| 6560 | 7227 | }, |
| 6561 | 7228 | else => |e| { |
| 6562 | | current_thread.endSyscall(); |
| 7229 | syscall.finish(); |
| 6563 | 7230 | switch (e) { |
| 6564 | 7231 | .FAULT => |err| return errnoBug(err), |
| 6565 | 7232 | .INVAL => return error.BadPathName, |
| ... | ... | @@ -6594,13 +7261,13 @@ fn dirHardLink( |
| 6594 | 7261 | ) Dir.HardLinkError!void { |
| 6595 | 7262 | if (is_windows) return error.OperationUnsupported; |
| 6596 | 7263 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6597 | | const current_thread = Thread.getCurrent(t); |
| 7264 | _ = t; |
| 6598 | 7265 | |
| 6599 | 7266 | if (native_os == .wasi and !builtin.link_libc) { |
| 6600 | 7267 | const flags: std.os.wasi.lookupflags_t = .{ |
| 6601 | 7268 | .SYMLINK_FOLLOW = options.follow_symlinks, |
| 6602 | 7269 | }; |
| 6603 | | try current_thread.beginSyscall(); |
| 7270 | const syscall: Syscall = try .start(); |
| 6604 | 7271 | while (true) { |
| 6605 | 7272 | switch (std.os.wasi.path_link( |
| 6606 | 7273 | old_dir.handle, |
| ... | ... | @@ -6611,13 +7278,13 @@ fn dirHardLink( |
| 6611 | 7278 | new_sub_path.ptr, |
| 6612 | 7279 | new_sub_path.len, |
| 6613 | 7280 | )) { |
| 6614 | | .SUCCESS => return current_thread.endSyscall(), |
| 7281 | .SUCCESS => return syscall.finish(), |
| 6615 | 7282 | .INTR => { |
| 6616 | | try current_thread.checkCancel(); |
| 7283 | try syscall.checkCancel(); |
| 6617 | 7284 | continue; |
| 6618 | 7285 | }, |
| 6619 | 7286 | else => |e| { |
| 6620 | | current_thread.endSyscall(); |
| 7287 | syscall.finish(); |
| 6621 | 7288 | switch (e) { |
| 6622 | 7289 | .ACCES => return error.AccessDenied, |
| 6623 | 7290 | .DQUOT => return error.DiskQuota, |
| ... | ... | @@ -6651,7 +7318,7 @@ fn dirHardLink( |
| 6651 | 7318 | |
| 6652 | 7319 | const flags: u32 = if (!options.follow_symlinks) posix.AT.SYMLINK_NOFOLLOW else 0; |
| 6653 | 7320 | |
| 6654 | | try current_thread.beginSyscall(); |
| 7321 | const syscall: Syscall = try .start(); |
| 6655 | 7322 | while (true) { |
| 6656 | 7323 | switch (posix.errno(posix.system.linkat( |
| 6657 | 7324 | old_dir.handle, |
| ... | ... | @@ -6660,13 +7327,13 @@ fn dirHardLink( |
| 6660 | 7327 | new_sub_path_posix, |
| 6661 | 7328 | flags, |
| 6662 | 7329 | ))) { |
| 6663 | | .SUCCESS => return current_thread.endSyscall(), |
| 7330 | .SUCCESS => return syscall.finish(), |
| 6664 | 7331 | .INTR => { |
| 6665 | | try current_thread.checkCancel(); |
| 7332 | try syscall.checkCancel(); |
| 6666 | 7333 | continue; |
| 6667 | 7334 | }, |
| 6668 | 7335 | else => |e| { |
| 6669 | | current_thread.endSyscall(); |
| 7336 | syscall.finish(); |
| 6670 | 7337 | switch (e) { |
| 6671 | 7338 | .ACCES => return error.AccessDenied, |
| 6672 | 7339 | .DQUOT => return error.DiskQuota, |
| ... | ... | @@ -6705,7 +7372,7 @@ const fileReadStreaming = switch (native_os) { |
| 6705 | 7372 | |
| 6706 | 7373 | fn fileReadStreamingPosix(userdata: ?*anyopaque, file: File, data: []const []u8) File.Reader.Error!usize { |
| 6707 | 7374 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6708 | | const current_thread = Thread.getCurrent(t); |
| 7375 | _ = t; |
| 6709 | 7376 | |
| 6710 | 7377 | var iovecs_buffer: [max_iovecs_len]posix.iovec = undefined; |
| 6711 | 7378 | var i: usize = 0; |
| ... | ... | @@ -6721,20 +7388,20 @@ fn fileReadStreamingPosix(userdata: ?*anyopaque, file: File, data: []const []u8) |
| 6721 | 7388 | assert(dest[0].len > 0); |
| 6722 | 7389 | |
| 6723 | 7390 | if (native_os == .wasi and !builtin.link_libc) { |
| 6724 | | try current_thread.beginSyscall(); |
| 7391 | const syscall: Syscall = try .start(); |
| 6725 | 7392 | while (true) { |
| 6726 | 7393 | var nread: usize = undefined; |
| 6727 | 7394 | switch (std.os.wasi.fd_read(file.handle, dest.ptr, dest.len, &nread)) { |
| 6728 | 7395 | .SUCCESS => { |
| 6729 | | current_thread.endSyscall(); |
| 7396 | syscall.finish(); |
| 6730 | 7397 | return nread; |
| 6731 | 7398 | }, |
| 6732 | 7399 | .INTR => { |
| 6733 | | try current_thread.checkCancel(); |
| 7400 | try syscall.checkCancel(); |
| 6734 | 7401 | continue; |
| 6735 | 7402 | }, |
| 6736 | 7403 | else => |e| { |
| 6737 | | current_thread.endSyscall(); |
| 7404 | syscall.finish(); |
| 6738 | 7405 | switch (e) { |
| 6739 | 7406 | .INVAL => |err| return errnoBug(err), |
| 6740 | 7407 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -6754,20 +7421,20 @@ fn fileReadStreamingPosix(userdata: ?*anyopaque, file: File, data: []const []u8) |
| 6754 | 7421 | } |
| 6755 | 7422 | } |
| 6756 | 7423 | |
| 6757 | | try current_thread.beginSyscall(); |
| 7424 | const syscall: Syscall = try .start(); |
| 6758 | 7425 | while (true) { |
| 6759 | 7426 | const rc = posix.system.readv(file.handle, dest.ptr, @intCast(dest.len)); |
| 6760 | 7427 | switch (posix.errno(rc)) { |
| 6761 | 7428 | .SUCCESS => { |
| 6762 | | current_thread.endSyscall(); |
| 7429 | syscall.finish(); |
| 6763 | 7430 | return @intCast(rc); |
| 6764 | 7431 | }, |
| 6765 | 7432 | .INTR => { |
| 6766 | | try current_thread.checkCancel(); |
| 7433 | try syscall.checkCancel(); |
| 6767 | 7434 | continue; |
| 6768 | 7435 | }, |
| 6769 | 7436 | else => |e| { |
| 6770 | | current_thread.endSyscall(); |
| 7437 | syscall.finish(); |
| 6771 | 7438 | switch (e) { |
| 6772 | 7439 | .INVAL => |err| return errnoBug(err), |
| 6773 | 7440 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -6792,7 +7459,7 @@ fn fileReadStreamingPosix(userdata: ?*anyopaque, file: File, data: []const []u8) |
| 6792 | 7459 | |
| 6793 | 7460 | fn fileReadStreamingWindows(userdata: ?*anyopaque, file: File, data: []const []u8) File.Reader.Error!usize { |
| 6794 | 7461 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6795 | | const current_thread = Thread.getCurrent(t); |
| 7462 | _ = t; |
| 6796 | 7463 | |
| 6797 | 7464 | const DWORD = windows.DWORD; |
| 6798 | 7465 | var index: usize = 0; |
| ... | ... | @@ -6801,28 +7468,41 @@ fn fileReadStreamingWindows(userdata: ?*anyopaque, file: File, data: []const []u |
| 6801 | 7468 | const buffer = data[index]; |
| 6802 | 7469 | const want_read_count: DWORD = @min(std.math.maxInt(DWORD), buffer.len); |
| 6803 | 7470 | |
| 7471 | const syscall: Syscall = try .start(); |
| 6804 | 7472 | while (true) { |
| 6805 | | try current_thread.checkCancel(); |
| 6806 | 7473 | var n: DWORD = undefined; |
| 6807 | | if (windows.kernel32.ReadFile(file.handle, buffer.ptr, want_read_count, &n, null) != 0) |
| 7474 | if (windows.kernel32.ReadFile(file.handle, buffer.ptr, want_read_count, &n, null) != 0) { |
| 7475 | syscall.finish(); |
| 6808 | 7476 | return n; |
| 7477 | } |
| 6809 | 7478 | switch (windows.GetLastError()) { |
| 6810 | | .IO_PENDING => |err| return windows.errorBug(err), |
| 6811 | | .OPERATION_ABORTED => continue, |
| 6812 | | .BROKEN_PIPE => return 0, |
| 6813 | | .HANDLE_EOF => return 0, |
| 6814 | | .NETNAME_DELETED => return error.ConnectionResetByPeer, |
| 6815 | | .LOCK_VIOLATION => return error.LockViolation, |
| 6816 | | .ACCESS_DENIED => return error.AccessDenied, |
| 6817 | | .INVALID_HANDLE => return error.NotOpenForReading, |
| 6818 | | else => |err| return windows.unexpectedError(err), |
| 7479 | .IO_PENDING => |err| { |
| 7480 | syscall.finish(); |
| 7481 | return windows.errorBug(err); |
| 7482 | }, |
| 7483 | .OPERATION_ABORTED => { |
| 7484 | try syscall.checkCancel(); |
| 7485 | continue; |
| 7486 | }, |
| 7487 | .BROKEN_PIPE, .HANDLE_EOF => { |
| 7488 | syscall.finish(); |
| 7489 | return 0; |
| 7490 | }, |
| 7491 | .NETNAME_DELETED => return syscall.fail(error.ConnectionResetByPeer), |
| 7492 | .LOCK_VIOLATION => return syscall.fail(error.LockViolation), |
| 7493 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 7494 | .INVALID_HANDLE => return syscall.fail(error.NotOpenForReading), |
| 7495 | else => |err| { |
| 7496 | syscall.finish(); |
| 7497 | return windows.unexpectedError(err); |
| 7498 | }, |
| 6819 | 7499 | } |
| 6820 | 7500 | } |
| 6821 | 7501 | } |
| 6822 | 7502 | |
| 6823 | 7503 | fn fileReadPositionalPosix(userdata: ?*anyopaque, file: File, data: []const []u8, offset: u64) File.ReadPositionalError!usize { |
| 6824 | 7504 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6825 | | const current_thread = Thread.getCurrent(t); |
| 7505 | _ = t; |
| 6826 | 7506 | |
| 6827 | 7507 | if (!have_preadv) @compileError("TODO implement fileReadPositionalPosix for cursed operating systems that don't support preadv (it's only Haiku)"); |
| 6828 | 7508 | |
| ... | ... | @@ -6840,20 +7520,20 @@ fn fileReadPositionalPosix(userdata: ?*anyopaque, file: File, data: []const []u8 |
| 6840 | 7520 | assert(dest[0].len > 0); |
| 6841 | 7521 | |
| 6842 | 7522 | if (native_os == .wasi and !builtin.link_libc) { |
| 6843 | | try current_thread.beginSyscall(); |
| 7523 | const syscall: Syscall = try .start(); |
| 6844 | 7524 | while (true) { |
| 6845 | 7525 | var nread: usize = undefined; |
| 6846 | 7526 | switch (std.os.wasi.fd_pread(file.handle, dest.ptr, dest.len, offset, &nread)) { |
| 6847 | 7527 | .SUCCESS => { |
| 6848 | | current_thread.endSyscall(); |
| 7528 | syscall.finish(); |
| 6849 | 7529 | return nread; |
| 6850 | 7530 | }, |
| 6851 | 7531 | .INTR => { |
| 6852 | | try current_thread.checkCancel(); |
| 7532 | try syscall.checkCancel(); |
| 6853 | 7533 | continue; |
| 6854 | 7534 | }, |
| 6855 | 7535 | else => |e| { |
| 6856 | | current_thread.endSyscall(); |
| 7536 | syscall.finish(); |
| 6857 | 7537 | switch (e) { |
| 6858 | 7538 | .INVAL => |err| return errnoBug(err), |
| 6859 | 7539 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -6877,20 +7557,20 @@ fn fileReadPositionalPosix(userdata: ?*anyopaque, file: File, data: []const []u8 |
| 6877 | 7557 | } |
| 6878 | 7558 | } |
| 6879 | 7559 | |
| 6880 | | try current_thread.beginSyscall(); |
| 7560 | const syscall: Syscall = try .start(); |
| 6881 | 7561 | while (true) { |
| 6882 | 7562 | const rc = preadv_sym(file.handle, dest.ptr, @intCast(dest.len), @bitCast(offset)); |
| 6883 | 7563 | switch (posix.errno(rc)) { |
| 6884 | 7564 | .SUCCESS => { |
| 6885 | | current_thread.endSyscall(); |
| 7565 | syscall.finish(); |
| 6886 | 7566 | return @bitCast(rc); |
| 6887 | 7567 | }, |
| 6888 | 7568 | .INTR => { |
| 6889 | | try current_thread.checkCancel(); |
| 7569 | try syscall.checkCancel(); |
| 6890 | 7570 | continue; |
| 6891 | 7571 | }, |
| 6892 | 7572 | else => |e| { |
| 6893 | | current_thread.endSyscall(); |
| 7573 | syscall.finish(); |
| 6894 | 7574 | switch (e) { |
| 6895 | 7575 | .INVAL => |err| return errnoBug(err), |
| 6896 | 7576 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -6923,7 +7603,7 @@ const fileReadPositional = switch (native_os) { |
| 6923 | 7603 | |
| 6924 | 7604 | fn fileReadPositionalWindows(userdata: ?*anyopaque, file: File, data: []const []u8, offset: u64) File.ReadPositionalError!usize { |
| 6925 | 7605 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6926 | | const current_thread = Thread.getCurrent(t); |
| 7606 | _ = t; |
| 6927 | 7607 | |
| 6928 | 7608 | const DWORD = windows.DWORD; |
| 6929 | 7609 | |
| ... | ... | @@ -6945,45 +7625,58 @@ fn fileReadPositionalWindows(userdata: ?*anyopaque, file: File, data: []const [] |
| 6945 | 7625 | .hEvent = null, |
| 6946 | 7626 | }; |
| 6947 | 7627 | |
| 7628 | const syscall: Syscall = try .start(); |
| 6948 | 7629 | while (true) { |
| 6949 | | try current_thread.checkCancel(); |
| 6950 | 7630 | var n: DWORD = undefined; |
| 6951 | | if (windows.kernel32.ReadFile(file.handle, buffer.ptr, want_read_count, &n, &overlapped) != 0) |
| 7631 | if (windows.kernel32.ReadFile(file.handle, buffer.ptr, want_read_count, &n, &overlapped) != 0) { |
| 7632 | syscall.finish(); |
| 6952 | 7633 | return n; |
| 7634 | } |
| 6953 | 7635 | switch (windows.GetLastError()) { |
| 6954 | | .IO_PENDING => |err| return windows.errorBug(err), |
| 6955 | | .OPERATION_ABORTED => continue, |
| 6956 | | .BROKEN_PIPE => return 0, |
| 6957 | | .HANDLE_EOF => return 0, |
| 6958 | | .NETNAME_DELETED => return error.ConnectionResetByPeer, |
| 6959 | | .LOCK_VIOLATION => return error.LockViolation, |
| 6960 | | .ACCESS_DENIED => return error.AccessDenied, |
| 6961 | | .INVALID_HANDLE => return error.NotOpenForReading, |
| 6962 | | else => |err| return windows.unexpectedError(err), |
| 7636 | .IO_PENDING => |err| { |
| 7637 | syscall.finish(); |
| 7638 | return windows.errorBug(err); |
| 7639 | }, |
| 7640 | .OPERATION_ABORTED => { |
| 7641 | try syscall.checkCancel(); |
| 7642 | continue; |
| 7643 | }, |
| 7644 | .BROKEN_PIPE, .HANDLE_EOF => { |
| 7645 | syscall.finish(); |
| 7646 | return 0; |
| 7647 | }, |
| 7648 | .NETNAME_DELETED => return syscall.fail(error.ConnectionResetByPeer), |
| 7649 | .LOCK_VIOLATION => return syscall.fail(error.LockViolation), |
| 7650 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 7651 | .INVALID_HANDLE => return syscall.fail(error.NotOpenForReading), |
| 7652 | else => |err| { |
| 7653 | syscall.finish(); |
| 7654 | return windows.unexpectedError(err); |
| 7655 | }, |
| 6963 | 7656 | } |
| 6964 | 7657 | } |
| 6965 | 7658 | } |
| 6966 | 7659 | |
| 6967 | 7660 | fn fileSeekBy(userdata: ?*anyopaque, file: File, offset: i64) File.SeekError!void { |
| 6968 | 7661 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 6969 | | const current_thread = Thread.getCurrent(t); |
| 7662 | _ = t; |
| 6970 | 7663 | const fd = file.handle; |
| 6971 | 7664 | |
| 6972 | 7665 | if (native_os == .linux and !builtin.link_libc and @sizeOf(usize) == 4) { |
| 6973 | 7666 | var result: u64 = undefined; |
| 6974 | | try current_thread.beginSyscall(); |
| 7667 | const syscall: Syscall = try .start(); |
| 6975 | 7668 | while (true) { |
| 6976 | 7669 | switch (posix.errno(posix.system.llseek(fd, @bitCast(offset), &result, posix.SEEK.CUR))) { |
| 6977 | 7670 | .SUCCESS => { |
| 6978 | | current_thread.endSyscall(); |
| 7671 | syscall.finish(); |
| 6979 | 7672 | return; |
| 6980 | 7673 | }, |
| 6981 | 7674 | .INTR => { |
| 6982 | | try current_thread.checkCancel(); |
| 7675 | try syscall.checkCancel(); |
| 6983 | 7676 | continue; |
| 6984 | 7677 | }, |
| 6985 | 7678 | else => |e| { |
| 6986 | | current_thread.endSyscall(); |
| 7679 | syscall.finish(); |
| 6987 | 7680 | switch (e) { |
| 6988 | 7681 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 6989 | 7682 | .INVAL => return error.Unseekable, |
| ... | ... | @@ -6998,25 +7691,43 @@ fn fileSeekBy(userdata: ?*anyopaque, file: File, offset: i64) File.SeekError!voi |
| 6998 | 7691 | } |
| 6999 | 7692 | |
| 7000 | 7693 | if (native_os == .windows) { |
| 7001 | | try current_thread.checkCancel(); |
| 7002 | | return windows.SetFilePointerEx_CURRENT(fd, offset); |
| 7694 | const syscall: Syscall = try .start(); |
| 7695 | while (true) { |
| 7696 | if (windows.kernel32.SetFilePointerEx(fd, offset, null, windows.FILE_CURRENT) != 0) { |
| 7697 | return syscall.finish(); |
| 7698 | } |
| 7699 | switch (windows.GetLastError()) { |
| 7700 | .OPERATION_ABORTED => { |
| 7701 | try syscall.checkCancel(); |
| 7702 | continue; |
| 7703 | }, |
| 7704 | .INVALID_FUNCTION => return syscall.fail(error.Unseekable), |
| 7705 | .NEGATIVE_SEEK => return syscall.fail(error.Unseekable), |
| 7706 | .INVALID_PARAMETER => unreachable, |
| 7707 | .INVALID_HANDLE => unreachable, |
| 7708 | else => |err| { |
| 7709 | syscall.finish(); |
| 7710 | return windows.unexpectedError(err); |
| 7711 | }, |
| 7712 | } |
| 7713 | } |
| 7003 | 7714 | } |
| 7004 | 7715 | |
| 7005 | 7716 | if (native_os == .wasi and !builtin.link_libc) { |
| 7006 | 7717 | var new_offset: std.os.wasi.filesize_t = undefined; |
| 7007 | | try current_thread.beginSyscall(); |
| 7718 | const syscall: Syscall = try .start(); |
| 7008 | 7719 | while (true) { |
| 7009 | 7720 | switch (std.os.wasi.fd_seek(fd, offset, .CUR, &new_offset)) { |
| 7010 | 7721 | .SUCCESS => { |
| 7011 | | current_thread.endSyscall(); |
| 7722 | syscall.finish(); |
| 7012 | 7723 | return; |
| 7013 | 7724 | }, |
| 7014 | 7725 | .INTR => { |
| 7015 | | try current_thread.checkCancel(); |
| 7726 | try syscall.checkCancel(); |
| 7016 | 7727 | continue; |
| 7017 | 7728 | }, |
| 7018 | 7729 | else => |e| { |
| 7019 | | current_thread.endSyscall(); |
| 7730 | syscall.finish(); |
| 7020 | 7731 | switch (e) { |
| 7021 | 7732 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 7022 | 7733 | .INVAL => return error.Unseekable, |
| ... | ... | @@ -7033,19 +7744,19 @@ fn fileSeekBy(userdata: ?*anyopaque, file: File, offset: i64) File.SeekError!voi |
| 7033 | 7744 | |
| 7034 | 7745 | if (posix.SEEK == void) return error.Unseekable; |
| 7035 | 7746 | |
| 7036 | | try current_thread.beginSyscall(); |
| 7747 | const syscall: Syscall = try .start(); |
| 7037 | 7748 | while (true) { |
| 7038 | 7749 | switch (posix.errno(lseek_sym(fd, offset, posix.SEEK.CUR))) { |
| 7039 | 7750 | .SUCCESS => { |
| 7040 | | current_thread.endSyscall(); |
| 7751 | syscall.finish(); |
| 7041 | 7752 | return; |
| 7042 | 7753 | }, |
| 7043 | 7754 | .INTR => { |
| 7044 | | try current_thread.checkCancel(); |
| 7755 | try syscall.checkCancel(); |
| 7045 | 7756 | continue; |
| 7046 | 7757 | }, |
| 7047 | 7758 | else => |e| { |
| 7048 | | current_thread.endSyscall(); |
| 7759 | syscall.finish(); |
| 7049 | 7760 | switch (e) { |
| 7050 | 7761 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 7051 | 7762 | .INVAL => return error.Unseekable, |
| ... | ... | @@ -7061,29 +7772,52 @@ fn fileSeekBy(userdata: ?*anyopaque, file: File, offset: i64) File.SeekError!voi |
| 7061 | 7772 | |
| 7062 | 7773 | fn fileSeekTo(userdata: ?*anyopaque, file: File, offset: u64) File.SeekError!void { |
| 7063 | 7774 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 7064 | | const current_thread = Thread.getCurrent(t); |
| 7775 | _ = t; |
| 7065 | 7776 | const fd = file.handle; |
| 7066 | 7777 | |
| 7067 | 7778 | if (native_os == .windows) { |
| 7068 | | try current_thread.checkCancel(); |
| 7069 | | return windows.SetFilePointerEx_BEGIN(fd, offset); |
| 7779 | // "The starting point is zero or the beginning of the file. If [FILE_BEGIN] |
| 7780 | // is specified, then the liDistanceToMove parameter is interpreted as an unsigned value." |
| 7781 | // https://docs.microsoft.com/en-us/windows/desktop/api/fileapi/nf-fileapi-setfilepointerex |
| 7782 | const ipos: windows.LARGE_INTEGER = @bitCast(offset); |
| 7783 | |
| 7784 | const syscall: Syscall = try .start(); |
| 7785 | while (true) { |
| 7786 | if (windows.kernel32.SetFilePointerEx(fd, ipos, null, windows.FILE_BEGIN) != 0) { |
| 7787 | return syscall.finish(); |
| 7788 | } |
| 7789 | switch (windows.GetLastError()) { |
| 7790 | .OPERATION_ABORTED => { |
| 7791 | try syscall.checkCancel(); |
| 7792 | continue; |
| 7793 | }, |
| 7794 | .INVALID_FUNCTION => return syscall.fail(error.Unseekable), |
| 7795 | .NEGATIVE_SEEK => return syscall.fail(error.Unseekable), |
| 7796 | .INVALID_PARAMETER => unreachable, |
| 7797 | .INVALID_HANDLE => unreachable, |
| 7798 | else => |err| { |
| 7799 | syscall.finish(); |
| 7800 | return windows.unexpectedError(err); |
| 7801 | }, |
| 7802 | } |
| 7803 | } |
| 7070 | 7804 | } |
| 7071 | 7805 | |
| 7072 | 7806 | if (native_os == .wasi and !builtin.link_libc) { |
| 7073 | | try current_thread.beginSyscall(); |
| 7807 | const syscall: Syscall = try .start(); |
| 7074 | 7808 | while (true) { |
| 7075 | 7809 | var new_offset: std.os.wasi.filesize_t = undefined; |
| 7076 | 7810 | switch (std.os.wasi.fd_seek(fd, @bitCast(offset), .SET, &new_offset)) { |
| 7077 | 7811 | .SUCCESS => { |
| 7078 | | current_thread.endSyscall(); |
| 7812 | syscall.finish(); |
| 7079 | 7813 | return; |
| 7080 | 7814 | }, |
| 7081 | 7815 | .INTR => { |
| 7082 | | try current_thread.checkCancel(); |
| 7816 | try syscall.checkCancel(); |
| 7083 | 7817 | continue; |
| 7084 | 7818 | }, |
| 7085 | 7819 | else => |e| { |
| 7086 | | current_thread.endSyscall(); |
| 7820 | syscall.finish(); |
| 7087 | 7821 | switch (e) { |
| 7088 | 7822 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 7089 | 7823 | .INVAL => return error.Unseekable, |
| ... | ... | @@ -7100,25 +7834,25 @@ fn fileSeekTo(userdata: ?*anyopaque, file: File, offset: u64) File.SeekError!voi |
| 7100 | 7834 | |
| 7101 | 7835 | if (posix.SEEK == void) return error.Unseekable; |
| 7102 | 7836 | |
| 7103 | | return posixSeekTo(current_thread, fd, offset); |
| 7837 | return posixSeekTo(fd, offset); |
| 7104 | 7838 | } |
| 7105 | 7839 | |
| 7106 | | fn posixSeekTo(current_thread: *Thread, fd: posix.fd_t, offset: u64) File.SeekError!void { |
| 7840 | fn posixSeekTo(fd: posix.fd_t, offset: u64) File.SeekError!void { |
| 7107 | 7841 | if (native_os == .linux and !builtin.link_libc and @sizeOf(usize) == 4) { |
| 7108 | | try current_thread.beginSyscall(); |
| 7842 | const syscall: Syscall = try .start(); |
| 7109 | 7843 | while (true) { |
| 7110 | 7844 | var result: u64 = undefined; |
| 7111 | 7845 | switch (posix.errno(posix.system.llseek(fd, offset, &result, posix.SEEK.SET))) { |
| 7112 | 7846 | .SUCCESS => { |
| 7113 | | current_thread.endSyscall(); |
| 7847 | syscall.finish(); |
| 7114 | 7848 | return; |
| 7115 | 7849 | }, |
| 7116 | 7850 | .INTR => { |
| 7117 | | try current_thread.checkCancel(); |
| 7851 | try syscall.checkCancel(); |
| 7118 | 7852 | continue; |
| 7119 | 7853 | }, |
| 7120 | 7854 | else => |e| { |
| 7121 | | current_thread.endSyscall(); |
| 7855 | syscall.finish(); |
| 7122 | 7856 | switch (e) { |
| 7123 | 7857 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 7124 | 7858 | .INVAL => return error.Unseekable, |
| ... | ... | @@ -7132,19 +7866,19 @@ fn posixSeekTo(current_thread: *Thread, fd: posix.fd_t, offset: u64) File.SeekEr |
| 7132 | 7866 | } |
| 7133 | 7867 | } |
| 7134 | 7868 | |
| 7135 | | try current_thread.beginSyscall(); |
| 7869 | const syscall: Syscall = try .start(); |
| 7136 | 7870 | while (true) { |
| 7137 | 7871 | switch (posix.errno(lseek_sym(fd, @bitCast(offset), posix.SEEK.SET))) { |
| 7138 | 7872 | .SUCCESS => { |
| 7139 | | current_thread.endSyscall(); |
| 7873 | syscall.finish(); |
| 7140 | 7874 | return; |
| 7141 | 7875 | }, |
| 7142 | 7876 | .INTR => { |
| 7143 | | try current_thread.checkCancel(); |
| 7877 | try syscall.checkCancel(); |
| 7144 | 7878 | continue; |
| 7145 | 7879 | }, |
| 7146 | 7880 | else => |e| { |
| 7147 | | current_thread.endSyscall(); |
| 7881 | syscall.finish(); |
| 7148 | 7882 | switch (e) { |
| 7149 | 7883 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 7150 | 7884 | .INVAL => return error.Unseekable, |
| ... | ... | @@ -7170,7 +7904,7 @@ fn processExecutableOpen(userdata: ?*anyopaque, flags: File.OpenFlags) std.proce |
| 7170 | 7904 | const image_path_unicode_string = &windows.peb().ProcessParameters.ImagePathName; |
| 7171 | 7905 | const image_path_name = image_path_unicode_string.Buffer.?[0 .. image_path_unicode_string.Length / 2 :0]; |
| 7172 | 7906 | const prefixed_path_w = try windows.wToPrefixedFileW(null, image_path_name); |
| 7173 | | return dirOpenFileWtf16(t, null, prefixed_path_w.span(), flags); |
| 7907 | return dirOpenFileWtf16(null, prefixed_path_w.span(), flags); |
| 7174 | 7908 | }, |
| 7175 | 7909 | .driverkit, |
| 7176 | 7910 | .ios, |
| ... | ... | @@ -7234,22 +7968,21 @@ fn processExecutablePath(userdata: ?*anyopaque, out_buffer: []u8) std.process.Ex |
| 7234 | 7968 | else => |e| return e, |
| 7235 | 7969 | }, |
| 7236 | 7970 | .freebsd, .dragonfly => { |
| 7237 | | const current_thread = Thread.getCurrent(t); |
| 7238 | 7971 | var mib: [4]c_int = .{ posix.CTL.KERN, posix.KERN.PROC, posix.KERN.PROC_PATHNAME, -1 }; |
| 7239 | 7972 | var out_len: usize = out_buffer.len; |
| 7240 | | try current_thread.beginSyscall(); |
| 7973 | const syscall: Syscall = try .start(); |
| 7241 | 7974 | while (true) { |
| 7242 | 7975 | switch (posix.errno(posix.system.sysctl(&mib, mib.len, out_buffer.ptr, &out_len, null, 0))) { |
| 7243 | 7976 | .SUCCESS => { |
| 7244 | | current_thread.endSyscall(); |
| 7977 | syscall.finish(); |
| 7245 | 7978 | return out_len - 1; // discard terminating NUL |
| 7246 | 7979 | }, |
| 7247 | 7980 | .INTR => { |
| 7248 | | try current_thread.checkCancel(); |
| 7981 | try syscall.checkCancel(); |
| 7249 | 7982 | continue; |
| 7250 | 7983 | }, |
| 7251 | 7984 | else => |e| { |
| 7252 | | current_thread.endSyscall(); |
| 7985 | syscall.finish(); |
| 7253 | 7986 | switch (e) { |
| 7254 | 7987 | .FAULT => |err| return errnoBug(err), |
| 7255 | 7988 | .PERM => return error.PermissionDenied, |
| ... | ... | @@ -7262,22 +7995,21 @@ fn processExecutablePath(userdata: ?*anyopaque, out_buffer: []u8) std.process.Ex |
| 7262 | 7995 | } |
| 7263 | 7996 | }, |
| 7264 | 7997 | .netbsd => { |
| 7265 | | const current_thread = Thread.getCurrent(t); |
| 7266 | 7998 | var mib = [4]c_int{ posix.CTL.KERN, posix.KERN.PROC_ARGS, -1, posix.KERN.PROC_PATHNAME }; |
| 7267 | 7999 | var out_len: usize = out_buffer.len; |
| 7268 | | try current_thread.beginSyscall(); |
| 8000 | const syscall: Syscall = try .start(); |
| 7269 | 8001 | while (true) { |
| 7270 | 8002 | switch (posix.errno(posix.system.sysctl(&mib, mib.len, out_buffer.ptr, &out_len, null, 0))) { |
| 7271 | 8003 | .SUCCESS => { |
| 7272 | | current_thread.endSyscall(); |
| 8004 | syscall.finish(); |
| 7273 | 8005 | return out_len - 1; // discard terminating NUL |
| 7274 | 8006 | }, |
| 7275 | 8007 | .INTR => { |
| 7276 | | try current_thread.checkCancel(); |
| 8008 | try syscall.checkCancel(); |
| 7277 | 8009 | continue; |
| 7278 | 8010 | }, |
| 7279 | 8011 | else => |e| { |
| 7280 | | current_thread.endSyscall(); |
| 8012 | syscall.finish(); |
| 7281 | 8013 | switch (e) { |
| 7282 | 8014 | .FAULT => |err| return errnoBug(err), |
| 7283 | 8015 | .PERM => return error.PermissionDenied, |
| ... | ... | @@ -7295,20 +8027,19 @@ fn processExecutablePath(userdata: ?*anyopaque, out_buffer: []u8) std.process.Ex |
| 7295 | 8027 | const argv0 = std.mem.span(t.argv0.value orelse return error.OperationUnsupported); |
| 7296 | 8028 | if (std.mem.findScalar(u8, argv0, '/') != null) { |
| 7297 | 8029 | // argv[0] is a path (relative or absolute): use realpath(3) directly |
| 7298 | | const current_thread = Thread.getCurrent(t); |
| 7299 | 8030 | var resolved_buf: [std.c.PATH_MAX]u8 = undefined; |
| 7300 | | try current_thread.beginSyscall(); |
| 8031 | const syscall: Syscall = try .start(); |
| 7301 | 8032 | while (true) { |
| 7302 | 8033 | if (std.c.realpath(argv0, &resolved_buf)) |p| { |
| 7303 | 8034 | assert(p == &resolved_buf); |
| 7304 | | break current_thread.endSyscall(); |
| 8035 | break syscall.finish(); |
| 7305 | 8036 | } else switch (@as(std.c.E, @enumFromInt(std.c._errno().*))) { |
| 7306 | 8037 | .INTR => { |
| 7307 | | try current_thread.checkCancel(); |
| 8038 | try syscall.checkCancel(); |
| 7308 | 8039 | continue; |
| 7309 | 8040 | }, |
| 7310 | 8041 | else => |e| { |
| 7311 | | current_thread.endSyscall(); |
| 8042 | syscall.finish(); |
| 7312 | 8043 | switch (e) { |
| 7313 | 8044 | .ACCES => return error.AccessDenied, |
| 7314 | 8045 | .INVAL => |err| return errnoBug(err), // the pathname argument is a null pointer |
| ... | ... | @@ -7332,7 +8063,6 @@ fn processExecutablePath(userdata: ?*anyopaque, out_buffer: []u8) std.process.Ex |
| 7332 | 8063 | // argv[0] is not empty (and not a path): search PATH |
| 7333 | 8064 | t.scanEnviron(); |
| 7334 | 8065 | const PATH = t.environ.string.PATH orelse return error.FileNotFound; |
| 7335 | | const current_thread = Thread.getCurrent(t); |
| 7336 | 8066 | var it = std.mem.tokenizeScalar(u8, PATH, ':'); |
| 7337 | 8067 | it: while (it.next()) |dir| { |
| 7338 | 8068 | var resolved_path_buf: [std.c.PATH_MAX]u8 = undefined; |
| ... | ... | @@ -7341,34 +8071,34 @@ fn processExecutablePath(userdata: ?*anyopaque, out_buffer: []u8) std.process.Ex |
| 7341 | 8071 | }, 0) catch continue; |
| 7342 | 8072 | |
| 7343 | 8073 | var resolved_buf: [std.c.PATH_MAX]u8 = undefined; |
| 7344 | | try current_thread.beginSyscall(); |
| 8074 | const syscall: Syscall = try .start(); |
| 7345 | 8075 | while (true) { |
| 7346 | 8076 | if (std.c.realpath(resolved_path, &resolved_buf)) |p| { |
| 7347 | 8077 | assert(p == &resolved_buf); |
| 7348 | | break current_thread.endSyscall(); |
| 8078 | break syscall.finish(); |
| 7349 | 8079 | } else switch (@as(std.c.E, @enumFromInt(std.c._errno().*))) { |
| 7350 | 8080 | .INTR => { |
| 7351 | | try current_thread.checkCancel(); |
| 8081 | try syscall.checkCancel(); |
| 7352 | 8082 | continue; |
| 7353 | 8083 | }, |
| 7354 | 8084 | .NAMETOOLONG => { |
| 7355 | | current_thread.endSyscall(); |
| 8085 | syscall.finish(); |
| 7356 | 8086 | return error.NameTooLong; |
| 7357 | 8087 | }, |
| 7358 | 8088 | .NOMEM => { |
| 7359 | | current_thread.endSyscall(); |
| 8089 | syscall.finish(); |
| 7360 | 8090 | return error.SystemResources; |
| 7361 | 8091 | }, |
| 7362 | 8092 | .IO => { |
| 7363 | | current_thread.endSyscall(); |
| 8093 | syscall.finish(); |
| 7364 | 8094 | return error.InputOutput; |
| 7365 | 8095 | }, |
| 7366 | 8096 | .ACCES, .LOOP, .NOENT, .NOTDIR => { |
| 7367 | | current_thread.endSyscall(); |
| 8097 | syscall.finish(); |
| 7368 | 8098 | continue :it; |
| 7369 | 8099 | }, |
| 7370 | 8100 | else => |err| { |
| 7371 | | current_thread.endSyscall(); |
| 8101 | syscall.finish(); |
| 7372 | 8102 | return posix.unexpectedErrno(err); |
| 7373 | 8103 | }, |
| 7374 | 8104 | } |
| ... | ... | @@ -7383,8 +8113,6 @@ fn processExecutablePath(userdata: ?*anyopaque, out_buffer: []u8) std.process.Ex |
| 7383 | 8113 | return error.FileNotFound; |
| 7384 | 8114 | }, |
| 7385 | 8115 | .windows => { |
| 7386 | | const current_thread = Thread.getCurrent(t); |
| 7387 | | try current_thread.checkCancel(); |
| 7388 | 8116 | const w = windows; |
| 7389 | 8117 | const image_path_unicode_string = &w.peb().ProcessParameters.ImagePathName; |
| 7390 | 8118 | const image_path_name = image_path_unicode_string.Buffer.?[0 .. image_path_unicode_string.Length / 2 :0]; |
| ... | ... | @@ -7394,24 +8122,34 @@ fn processExecutablePath(userdata: ?*anyopaque, out_buffer: []u8) std.process.Ex |
| 7394 | 8122 | // that the symlink points to, though, so we need to get the realpath. |
| 7395 | 8123 | var path_name_w_buf = try w.wToPrefixedFileW(null, image_path_name); |
| 7396 | 8124 | |
| 7397 | | const h_file = blk: { |
| 7398 | | const res = w.OpenFile(path_name_w_buf.span(), .{ |
| 7399 | | .dir = null, |
| 7400 | | .access_mask = .{ |
| 7401 | | .GENERIC = .{ .READ = true }, |
| 7402 | | .STANDARD = .{ .SYNCHRONIZE = true }, |
| 7403 | | }, |
| 7404 | | .creation = .OPEN, |
| 7405 | | .filter = .any, |
| 7406 | | }) catch |err| switch (err) { |
| 7407 | | error.WouldBlock => unreachable, |
| 7408 | | else => |e| return e, |
| 7409 | | }; |
| 7410 | | break :blk res; |
| 8125 | const h_file = handle: { |
| 8126 | const syscall: Syscall = try .start(); |
| 8127 | while (true) { |
| 8128 | if (w.OpenFile(path_name_w_buf.span(), .{ |
| 8129 | .dir = null, |
| 8130 | .access_mask = .{ |
| 8131 | .GENERIC = .{ .READ = true }, |
| 8132 | .STANDARD = .{ .SYNCHRONIZE = true }, |
| 8133 | }, |
| 8134 | .creation = .OPEN, |
| 8135 | .filter = .any, |
| 8136 | })) |handle| { |
| 8137 | syscall.finish(); |
| 8138 | break :handle handle; |
| 8139 | } else |err| switch (err) { |
| 8140 | error.WouldBlock => unreachable, |
| 8141 | error.OperationCanceled => { |
| 8142 | try syscall.checkCancel(); |
| 8143 | continue; |
| 8144 | }, |
| 8145 | else => |e| return e, |
| 8146 | } |
| 8147 | } |
| 7411 | 8148 | }; |
| 7412 | 8149 | defer w.CloseHandle(h_file); |
| 7413 | 8150 | |
| 7414 | 8151 | // TODO move GetFinalPathNameByHandle logic into std.Io.Threaded and add cancel checks |
| 8152 | try Thread.checkCancel(); |
| 7415 | 8153 | const wide_slice = try w.GetFinalPathNameByHandle(h_file, .{}, &path_name_w_buf.data); |
| 7416 | 8154 | |
| 7417 | 8155 | const len = std.unicode.calcWtf8Len(wide_slice); |
| ... | ... | @@ -7434,19 +8172,19 @@ fn fileWritePositional( |
| 7434 | 8172 | offset: u64, |
| 7435 | 8173 | ) File.WritePositionalError!usize { |
| 7436 | 8174 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 7437 | | const current_thread = Thread.getCurrent(t); |
| 8175 | _ = t; |
| 7438 | 8176 | |
| 7439 | 8177 | if (is_windows) { |
| 7440 | 8178 | if (header.len != 0) { |
| 7441 | | return writeFilePositionalWindows(current_thread, file.handle, header, offset); |
| 8179 | return writeFilePositionalWindows(file.handle, header, offset); |
| 7442 | 8180 | } |
| 7443 | 8181 | for (data[0 .. data.len - 1]) |buf| { |
| 7444 | 8182 | if (buf.len == 0) continue; |
| 7445 | | return writeFilePositionalWindows(current_thread, file.handle, buf, offset); |
| 8183 | return writeFilePositionalWindows(file.handle, buf, offset); |
| 7446 | 8184 | } |
| 7447 | 8185 | const pattern = data[data.len - 1]; |
| 7448 | 8186 | if (pattern.len == 0 or splat == 0) return 0; |
| 7449 | | return writeFilePositionalWindows(current_thread, file.handle, pattern, offset); |
| 8187 | return writeFilePositionalWindows(file.handle, pattern, offset); |
| 7450 | 8188 | } |
| 7451 | 8189 | |
| 7452 | 8190 | var iovecs: [max_iovecs_len]posix.iovec_const = undefined; |
| ... | ... | @@ -7484,19 +8222,19 @@ fn fileWritePositional( |
| 7484 | 8222 | |
| 7485 | 8223 | if (native_os == .wasi and !builtin.link_libc) { |
| 7486 | 8224 | var n_written: usize = undefined; |
| 7487 | | try current_thread.beginSyscall(); |
| 8225 | const syscall: Syscall = try .start(); |
| 7488 | 8226 | while (true) { |
| 7489 | 8227 | switch (std.os.wasi.fd_pwrite(file.handle, &iovecs, iovlen, offset, &n_written)) { |
| 7490 | 8228 | .SUCCESS => { |
| 7491 | | current_thread.endSyscall(); |
| 8229 | syscall.finish(); |
| 7492 | 8230 | return n_written; |
| 7493 | 8231 | }, |
| 7494 | 8232 | .INTR => { |
| 7495 | | try current_thread.checkCancel(); |
| 8233 | try syscall.checkCancel(); |
| 7496 | 8234 | continue; |
| 7497 | 8235 | }, |
| 7498 | 8236 | else => |e| { |
| 7499 | | current_thread.endSyscall(); |
| 8237 | syscall.finish(); |
| 7500 | 8238 | switch (e) { |
| 7501 | 8239 | .INVAL => |err| return errnoBug(err), |
| 7502 | 8240 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -7520,20 +8258,20 @@ fn fileWritePositional( |
| 7520 | 8258 | } |
| 7521 | 8259 | } |
| 7522 | 8260 | |
| 7523 | | try current_thread.beginSyscall(); |
| 8261 | const syscall: Syscall = try .start(); |
| 7524 | 8262 | while (true) { |
| 7525 | 8263 | const rc = pwritev_sym(file.handle, &iovecs, @intCast(iovlen), @bitCast(offset)); |
| 7526 | 8264 | switch (posix.errno(rc)) { |
| 7527 | 8265 | .SUCCESS => { |
| 7528 | | current_thread.endSyscall(); |
| 8266 | syscall.finish(); |
| 7529 | 8267 | return @intCast(rc); |
| 7530 | 8268 | }, |
| 7531 | 8269 | .INTR => { |
| 7532 | | try current_thread.checkCancel(); |
| 8270 | try syscall.checkCancel(); |
| 7533 | 8271 | continue; |
| 7534 | 8272 | }, |
| 7535 | 8273 | else => |e| { |
| 7536 | | current_thread.endSyscall(); |
| 8274 | syscall.finish(); |
| 7537 | 8275 | switch (e) { |
| 7538 | 8276 | .INVAL => |err| return errnoBug(err), |
| 7539 | 8277 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -7560,13 +8298,10 @@ fn fileWritePositional( |
| 7560 | 8298 | } |
| 7561 | 8299 | |
| 7562 | 8300 | fn writeFilePositionalWindows( |
| 7563 | | current_thread: *Thread, |
| 7564 | 8301 | handle: windows.HANDLE, |
| 7565 | 8302 | bytes: []const u8, |
| 7566 | 8303 | offset: u64, |
| 7567 | 8304 | ) File.WritePositionalError!usize { |
| 7568 | | try current_thread.checkCancel(); |
| 7569 | | |
| 7570 | 8305 | var bytes_written: windows.DWORD = undefined; |
| 7571 | 8306 | var overlapped: windows.OVERLAPPED = .{ |
| 7572 | 8307 | .Internal = 0, |
| ... | ... | @@ -7580,21 +8315,31 @@ fn writeFilePositionalWindows( |
| 7580 | 8315 | .hEvent = null, |
| 7581 | 8316 | }; |
| 7582 | 8317 | const adjusted_len = std.math.lossyCast(u32, bytes.len); |
| 7583 | | if (windows.kernel32.WriteFile(handle, bytes.ptr, adjusted_len, &bytes_written, &overlapped) == 0) { |
| 8318 | const syscall: Syscall = try .start(); |
| 8319 | while (true) { |
| 8320 | if (windows.kernel32.WriteFile(handle, bytes.ptr, adjusted_len, &bytes_written, &overlapped) != 0) { |
| 8321 | syscall.finish(); |
| 8322 | return bytes_written; |
| 8323 | } |
| 7584 | 8324 | switch (windows.GetLastError()) { |
| 7585 | | .INVALID_USER_BUFFER => return error.SystemResources, |
| 7586 | | .NOT_ENOUGH_MEMORY => return error.SystemResources, |
| 7587 | | .OPERATION_ABORTED => return error.Canceled, |
| 7588 | | .NOT_ENOUGH_QUOTA => return error.SystemResources, |
| 7589 | | .NO_DATA => return error.BrokenPipe, |
| 7590 | | .INVALID_HANDLE => return error.NotOpenForWriting, |
| 7591 | | .LOCK_VIOLATION => return error.LockViolation, |
| 7592 | | .ACCESS_DENIED => return error.AccessDenied, |
| 7593 | | .WORKING_SET_QUOTA => return error.SystemResources, |
| 7594 | | else => |err| return windows.unexpectedError(err), |
| 8325 | .OPERATION_ABORTED => { |
| 8326 | try syscall.checkCancel(); |
| 8327 | continue; |
| 8328 | }, |
| 8329 | .INVALID_USER_BUFFER => return syscall.fail(error.SystemResources), |
| 8330 | .NOT_ENOUGH_MEMORY => return syscall.fail(error.SystemResources), |
| 8331 | .NOT_ENOUGH_QUOTA => return syscall.fail(error.SystemResources), |
| 8332 | .NO_DATA => return syscall.fail(error.BrokenPipe), |
| 8333 | .INVALID_HANDLE => return syscall.fail(error.NotOpenForWriting), |
| 8334 | .LOCK_VIOLATION => return syscall.fail(error.LockViolation), |
| 8335 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 8336 | .WORKING_SET_QUOTA => return syscall.fail(error.SystemResources), |
| 8337 | else => |err| { |
| 8338 | syscall.finish(); |
| 8339 | return windows.unexpectedError(err); |
| 8340 | }, |
| 7595 | 8341 | } |
| 7596 | 8342 | } |
| 7597 | | return bytes_written; |
| 7598 | 8343 | } |
| 7599 | 8344 | |
| 7600 | 8345 | fn fileWriteStreaming( |
| ... | ... | @@ -7605,19 +8350,19 @@ fn fileWriteStreaming( |
| 7605 | 8350 | splat: usize, |
| 7606 | 8351 | ) File.Writer.Error!usize { |
| 7607 | 8352 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 7608 | | const current_thread = Thread.getCurrent(t); |
| 8353 | _ = t; |
| 7609 | 8354 | |
| 7610 | 8355 | if (is_windows) { |
| 7611 | 8356 | if (header.len != 0) { |
| 7612 | | return writeFileStreamingWindows(current_thread, file.handle, header); |
| 8357 | return writeFileStreamingWindows(file.handle, header); |
| 7613 | 8358 | } |
| 7614 | 8359 | for (data[0 .. data.len - 1]) |buf| { |
| 7615 | 8360 | if (buf.len == 0) continue; |
| 7616 | | return writeFileStreamingWindows(current_thread, file.handle, buf); |
| 8361 | return writeFileStreamingWindows(file.handle, buf); |
| 7617 | 8362 | } |
| 7618 | 8363 | const pattern = data[data.len - 1]; |
| 7619 | 8364 | if (pattern.len == 0 or splat == 0) return 0; |
| 7620 | | return writeFileStreamingWindows(current_thread, file.handle, pattern); |
| 8365 | return writeFileStreamingWindows(file.handle, pattern); |
| 7621 | 8366 | } |
| 7622 | 8367 | |
| 7623 | 8368 | var iovecs: [max_iovecs_len]posix.iovec_const = undefined; |
| ... | ... | @@ -7655,19 +8400,19 @@ fn fileWriteStreaming( |
| 7655 | 8400 | |
| 7656 | 8401 | if (native_os == .wasi and !builtin.link_libc) { |
| 7657 | 8402 | var n_written: usize = undefined; |
| 7658 | | try current_thread.beginSyscall(); |
| 8403 | const syscall: Syscall = try .start(); |
| 7659 | 8404 | while (true) { |
| 7660 | 8405 | switch (std.os.wasi.fd_write(file.handle, &iovecs, iovlen, &n_written)) { |
| 7661 | 8406 | .SUCCESS => { |
| 7662 | | current_thread.endSyscall(); |
| 8407 | syscall.finish(); |
| 7663 | 8408 | return n_written; |
| 7664 | 8409 | }, |
| 7665 | 8410 | .INTR => { |
| 7666 | | try current_thread.checkCancel(); |
| 8411 | try syscall.checkCancel(); |
| 7667 | 8412 | continue; |
| 7668 | 8413 | }, |
| 7669 | 8414 | else => |e| { |
| 7670 | | current_thread.endSyscall(); |
| 8415 | syscall.finish(); |
| 7671 | 8416 | switch (e) { |
| 7672 | 8417 | .INVAL => |err| return errnoBug(err), |
| 7673 | 8418 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -7688,20 +8433,20 @@ fn fileWriteStreaming( |
| 7688 | 8433 | } |
| 7689 | 8434 | } |
| 7690 | 8435 | |
| 7691 | | try current_thread.beginSyscall(); |
| 8436 | const syscall: Syscall = try .start(); |
| 7692 | 8437 | while (true) { |
| 7693 | 8438 | const rc = posix.system.writev(file.handle, &iovecs, @intCast(iovlen)); |
| 7694 | 8439 | switch (posix.errno(rc)) { |
| 7695 | 8440 | .SUCCESS => { |
| 7696 | | current_thread.endSyscall(); |
| 8441 | syscall.finish(); |
| 7697 | 8442 | return @intCast(rc); |
| 7698 | 8443 | }, |
| 7699 | 8444 | .INTR => { |
| 7700 | | try current_thread.checkCancel(); |
| 8445 | try syscall.checkCancel(); |
| 7701 | 8446 | continue; |
| 7702 | 8447 | }, |
| 7703 | 8448 | else => |e| { |
| 7704 | | current_thread.endSyscall(); |
| 8449 | syscall.finish(); |
| 7705 | 8450 | switch (e) { |
| 7706 | 8451 | .INVAL => |err| return errnoBug(err), |
| 7707 | 8452 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -7724,29 +8469,36 @@ fn fileWriteStreaming( |
| 7724 | 8469 | } |
| 7725 | 8470 | |
| 7726 | 8471 | fn writeFileStreamingWindows( |
| 7727 | | current_thread: *Thread, |
| 7728 | 8472 | handle: windows.HANDLE, |
| 7729 | 8473 | bytes: []const u8, |
| 7730 | 8474 | ) File.Writer.Error!usize { |
| 7731 | | try current_thread.checkCancel(); |
| 7732 | | |
| 7733 | 8475 | var bytes_written: windows.DWORD = undefined; |
| 7734 | 8476 | const adjusted_len = std.math.lossyCast(u32, bytes.len); |
| 7735 | | if (windows.kernel32.WriteFile(handle, bytes.ptr, adjusted_len, &bytes_written, null) == 0) { |
| 8477 | const syscall: Syscall = try .start(); |
| 8478 | while (true) { |
| 8479 | if (windows.kernel32.WriteFile(handle, bytes.ptr, adjusted_len, &bytes_written, null) != 0) { |
| 8480 | syscall.finish(); |
| 8481 | return bytes_written; |
| 8482 | } |
| 7736 | 8483 | switch (windows.GetLastError()) { |
| 7737 | | .INVALID_USER_BUFFER => return error.SystemResources, |
| 7738 | | .NOT_ENOUGH_MEMORY => return error.SystemResources, |
| 7739 | | .OPERATION_ABORTED => return error.Canceled, |
| 7740 | | .NOT_ENOUGH_QUOTA => return error.SystemResources, |
| 7741 | | .NO_DATA => return error.BrokenPipe, |
| 7742 | | .INVALID_HANDLE => return error.NotOpenForWriting, |
| 7743 | | .LOCK_VIOLATION => return error.LockViolation, |
| 7744 | | .ACCESS_DENIED => return error.AccessDenied, |
| 7745 | | .WORKING_SET_QUOTA => return error.SystemResources, |
| 7746 | | else => |err| return windows.unexpectedError(err), |
| 8484 | .OPERATION_ABORTED => { |
| 8485 | try syscall.checkCancel(); |
| 8486 | continue; |
| 8487 | }, |
| 8488 | .INVALID_USER_BUFFER => return syscall.fail(error.SystemResources), |
| 8489 | .NOT_ENOUGH_MEMORY => return syscall.fail(error.SystemResources), |
| 8490 | .NOT_ENOUGH_QUOTA => return syscall.fail(error.SystemResources), |
| 8491 | .NO_DATA => return syscall.fail(error.BrokenPipe), |
| 8492 | .INVALID_HANDLE => return syscall.fail(error.NotOpenForWriting), |
| 8493 | .LOCK_VIOLATION => return syscall.fail(error.LockViolation), |
| 8494 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 8495 | .WORKING_SET_QUOTA => return syscall.fail(error.SystemResources), |
| 8496 | else => |err| { |
| 8497 | syscall.finish(); |
| 8498 | return windows.unexpectedError(err); |
| 8499 | }, |
| 7747 | 8500 | } |
| 7748 | 8501 | } |
| 7749 | | return bytes_written; |
| 7750 | 8502 | } |
| 7751 | 8503 | |
| 7752 | 8504 | fn fileWriteFileStreaming( |
| ... | ... | @@ -7807,40 +8559,39 @@ fn fileWriteFileStreaming( |
| 7807 | 8559 | const nbytes: usize = @min(file_limit, std.math.maxInt(usize)); |
| 7808 | 8560 | const flags = 0; |
| 7809 | 8561 | |
| 7810 | | const current_thread = Thread.getCurrent(t); |
| 7811 | | try current_thread.beginSyscall(); |
| 8562 | const syscall: Syscall = try .start(); |
| 7812 | 8563 | while (true) { |
| 7813 | 8564 | switch (posix.errno(std.c.sendfile(in_fd, out_fd, offset, nbytes, hdtr, &sbytes, flags))) { |
| 7814 | 8565 | .SUCCESS => { |
| 7815 | | current_thread.endSyscall(); |
| 8566 | syscall.finish(); |
| 7816 | 8567 | break; |
| 7817 | 8568 | }, |
| 7818 | 8569 | .INVAL, .OPNOTSUPP, .NOTSOCK, .NOSYS => { |
| 7819 | 8570 | // Give calling code chance to observe before trying |
| 7820 | 8571 | // something else. |
| 7821 | | current_thread.endSyscall(); |
| 8572 | syscall.finish(); |
| 7822 | 8573 | @atomicStore(UseSendfile, &t.use_sendfile, .disabled, .monotonic); |
| 7823 | 8574 | return 0; |
| 7824 | 8575 | }, |
| 7825 | 8576 | .INTR, .BUSY => { |
| 7826 | 8577 | if (sbytes == 0) { |
| 7827 | | try current_thread.checkCancel(); |
| 8578 | try syscall.checkCancel(); |
| 7828 | 8579 | continue; |
| 7829 | 8580 | } else { |
| 7830 | 8581 | // Even if we are being canceled, there have been side |
| 7831 | 8582 | // effects, so it is better to report those side |
| 7832 | 8583 | // effects to the caller. |
| 7833 | | current_thread.endSyscall(); |
| 8584 | syscall.finish(); |
| 7834 | 8585 | break; |
| 7835 | 8586 | } |
| 7836 | 8587 | }, |
| 7837 | 8588 | .AGAIN => { |
| 7838 | | current_thread.endSyscall(); |
| 8589 | syscall.finish(); |
| 7839 | 8590 | if (sbytes == 0) return error.WouldBlock; |
| 7840 | 8591 | break; |
| 7841 | 8592 | }, |
| 7842 | 8593 | else => |e| { |
| 7843 | | current_thread.endSyscall(); |
| 8594 | syscall.finish(); |
| 7844 | 8595 | assert(error.Unexpected == switch (e) { |
| 7845 | 8596 | .NOTCONN => return error.BrokenPipe, |
| 7846 | 8597 | .IO => return error.InputOutput, |
| ... | ... | @@ -7893,40 +8644,39 @@ fn fileWriteFileStreaming( |
| 7893 | 8644 | const max_count = std.math.maxInt(i32); // Avoid EINVAL. |
| 7894 | 8645 | var len: std.c.off_t = @min(file_limit, max_count); |
| 7895 | 8646 | const flags = 0; |
| 7896 | | const current_thread = Thread.getCurrent(t); |
| 7897 | | try current_thread.beginSyscall(); |
| 8647 | const syscall: Syscall = try .start(); |
| 7898 | 8648 | while (true) { |
| 7899 | 8649 | switch (posix.errno(std.c.sendfile(in_fd, out_fd, offset, &len, hdtr, flags))) { |
| 7900 | 8650 | .SUCCESS => { |
| 7901 | | current_thread.endSyscall(); |
| 8651 | syscall.finish(); |
| 7902 | 8652 | break; |
| 7903 | 8653 | }, |
| 7904 | 8654 | .OPNOTSUPP, .NOTSOCK, .NOSYS => { |
| 7905 | 8655 | // Give calling code chance to observe before trying |
| 7906 | 8656 | // something else. |
| 7907 | | current_thread.endSyscall(); |
| 8657 | syscall.finish(); |
| 7908 | 8658 | @atomicStore(UseSendfile, &t.use_sendfile, .disabled, .monotonic); |
| 7909 | 8659 | return 0; |
| 7910 | 8660 | }, |
| 7911 | 8661 | .INTR => { |
| 7912 | 8662 | if (len == 0) { |
| 7913 | | try current_thread.checkCancel(); |
| 8663 | try syscall.checkCancel(); |
| 7914 | 8664 | continue; |
| 7915 | 8665 | } else { |
| 7916 | 8666 | // Even if we are being canceled, there have been side |
| 7917 | 8667 | // effects, so it is better to report those side |
| 7918 | 8668 | // effects to the caller. |
| 7919 | | current_thread.endSyscall(); |
| 8669 | syscall.finish(); |
| 7920 | 8670 | break; |
| 7921 | 8671 | } |
| 7922 | 8672 | }, |
| 7923 | 8673 | .AGAIN => { |
| 7924 | | current_thread.endSyscall(); |
| 8674 | syscall.finish(); |
| 7925 | 8675 | if (len == 0) return error.WouldBlock; |
| 7926 | 8676 | break; |
| 7927 | 8677 | }, |
| 7928 | 8678 | else => |e| { |
| 7929 | | current_thread.endSyscall(); |
| 8679 | syscall.finish(); |
| 7930 | 8680 | assert(error.Unexpected == switch (e) { |
| 7931 | 8681 | .NOTCONN => return error.BrokenPipe, |
| 7932 | 8682 | .IO => return error.InputOutput, |
| ... | ... | @@ -7973,28 +8723,27 @@ fn fileWriteFileStreaming( |
| 7973 | 8723 | .streaming_simple, .positional_simple => break :sf, |
| 7974 | 8724 | .failure => return error.ReadFailed, |
| 7975 | 8725 | }; |
| 7976 | | const current_thread = Thread.getCurrent(t); |
| 7977 | | try current_thread.beginSyscall(); |
| 8726 | const syscall: Syscall = try .start(); |
| 7978 | 8727 | const n: usize = while (true) { |
| 7979 | 8728 | const rc = sendfile_sym(out_fd, in_fd, off_ptr, count); |
| 7980 | 8729 | switch (posix.errno(rc)) { |
| 7981 | 8730 | .SUCCESS => { |
| 7982 | | current_thread.endSyscall(); |
| 8731 | syscall.finish(); |
| 7983 | 8732 | break @intCast(rc); |
| 7984 | 8733 | }, |
| 7985 | 8734 | .NOSYS, .INVAL => { |
| 7986 | 8735 | // Give calling code chance to observe before trying |
| 7987 | 8736 | // something else. |
| 7988 | | current_thread.endSyscall(); |
| 8737 | syscall.finish(); |
| 7989 | 8738 | @atomicStore(UseSendfile, &t.use_sendfile, .disabled, .monotonic); |
| 7990 | 8739 | return 0; |
| 7991 | 8740 | }, |
| 7992 | 8741 | .INTR => { |
| 7993 | | try current_thread.checkCancel(); |
| 8742 | try syscall.checkCancel(); |
| 7994 | 8743 | continue; |
| 7995 | 8744 | }, |
| 7996 | 8745 | else => |e| { |
| 7997 | | current_thread.endSyscall(); |
| 8746 | syscall.finish(); |
| 7998 | 8747 | assert(error.Unexpected == switch (e) { |
| 7999 | 8748 | .NOTCONN => return error.BrokenPipe, // `out_fd` is an unconnected socket |
| 8000 | 8749 | .AGAIN => return error.WouldBlock, |
| ... | ... | @@ -8050,30 +8799,29 @@ fn fileWriteFileStreaming( |
| 8050 | 8799 | .streaming => null, |
| 8051 | 8800 | .failure => return error.ReadFailed, |
| 8052 | 8801 | }; |
| 8053 | | const current_thread = Thread.getCurrent(t); |
| 8054 | 8802 | const n: usize = switch (native_os) { |
| 8055 | 8803 | .linux => n: { |
| 8056 | | try current_thread.beginSyscall(); |
| 8804 | const syscall: Syscall = try .start(); |
| 8057 | 8805 | while (true) { |
| 8058 | 8806 | const rc = linux_copy_file_range_sys.copy_file_range(in_fd, off_in_ptr, out_fd, null, @intFromEnum(limit), 0); |
| 8059 | 8807 | switch (linux_copy_file_range_sys.errno(rc)) { |
| 8060 | 8808 | .SUCCESS => { |
| 8061 | | current_thread.endSyscall(); |
| 8809 | syscall.finish(); |
| 8062 | 8810 | break :n @intCast(rc); |
| 8063 | 8811 | }, |
| 8064 | 8812 | .INTR => { |
| 8065 | | try current_thread.checkCancel(); |
| 8813 | try syscall.checkCancel(); |
| 8066 | 8814 | continue; |
| 8067 | 8815 | }, |
| 8068 | 8816 | .OPNOTSUPP, .INVAL, .NOSYS => { |
| 8069 | 8817 | // Give calling code chance to observe before trying |
| 8070 | 8818 | // something else. |
| 8071 | | current_thread.endSyscall(); |
| 8819 | syscall.finish(); |
| 8072 | 8820 | @atomicStore(UseCopyFileRange, &t.use_copy_file_range, .disabled, .monotonic); |
| 8073 | 8821 | return 0; |
| 8074 | 8822 | }, |
| 8075 | 8823 | else => |e| { |
| 8076 | | current_thread.endSyscall(); |
| 8824 | syscall.finish(); |
| 8077 | 8825 | assert(error.Unexpected == switch (e) { |
| 8078 | 8826 | .FBIG => return error.FileTooBig, |
| 8079 | 8827 | .IO => return error.InputOutput, |
| ... | ... | @@ -8097,27 +8845,27 @@ fn fileWriteFileStreaming( |
| 8097 | 8845 | } |
| 8098 | 8846 | }, |
| 8099 | 8847 | .freebsd => n: { |
| 8100 | | try current_thread.beginSyscall(); |
| 8848 | const syscall: Syscall = try .start(); |
| 8101 | 8849 | while (true) { |
| 8102 | 8850 | const rc = std.c.copy_file_range(in_fd, off_in_ptr, out_fd, null, @intFromEnum(limit), 0); |
| 8103 | 8851 | switch (std.c.errno(rc)) { |
| 8104 | 8852 | .SUCCESS => { |
| 8105 | | current_thread.endSyscall(); |
| 8853 | syscall.finish(); |
| 8106 | 8854 | break :n @intCast(rc); |
| 8107 | 8855 | }, |
| 8108 | 8856 | .INTR => { |
| 8109 | | try current_thread.checkCancel(); |
| 8857 | try syscall.checkCancel(); |
| 8110 | 8858 | continue; |
| 8111 | 8859 | }, |
| 8112 | 8860 | .OPNOTSUPP, .INVAL, .NOSYS => { |
| 8113 | 8861 | // Give calling code chance to observe before trying |
| 8114 | 8862 | // something else. |
| 8115 | | current_thread.endSyscall(); |
| 8863 | syscall.finish(); |
| 8116 | 8864 | @atomicStore(UseCopyFileRange, &t.use_copy_file_range, .disabled, .monotonic); |
| 8117 | 8865 | return 0; |
| 8118 | 8866 | }, |
| 8119 | 8867 | else => |e| { |
| 8120 | | current_thread.endSyscall(); |
| 8868 | syscall.finish(); |
| 8121 | 8869 | assert(error.Unexpected == switch (e) { |
| 8122 | 8870 | .FBIG => return error.FileTooBig, |
| 8123 | 8871 | .IO => return error.InputOutput, |
| ... | ... | @@ -8226,30 +8974,29 @@ fn fileWriteFilePositional( |
| 8226 | 8974 | .failure => return error.ReadFailed, |
| 8227 | 8975 | }; |
| 8228 | 8976 | var off_out: i64 = @intCast(offset); |
| 8229 | | const current_thread = Thread.getCurrent(t); |
| 8230 | 8977 | const n: usize = switch (native_os) { |
| 8231 | 8978 | .linux => n: { |
| 8232 | | try current_thread.beginSyscall(); |
| 8979 | const syscall: Syscall = try .start(); |
| 8233 | 8980 | while (true) { |
| 8234 | 8981 | const rc = linux_copy_file_range_sys.copy_file_range(in_fd, off_in_ptr, out_fd, &off_out, @intFromEnum(limit), 0); |
| 8235 | 8982 | switch (linux_copy_file_range_sys.errno(rc)) { |
| 8236 | 8983 | .SUCCESS => { |
| 8237 | | current_thread.endSyscall(); |
| 8984 | syscall.finish(); |
| 8238 | 8985 | break :n @intCast(rc); |
| 8239 | 8986 | }, |
| 8240 | 8987 | .INTR => { |
| 8241 | | try current_thread.checkCancel(); |
| 8988 | try syscall.checkCancel(); |
| 8242 | 8989 | continue; |
| 8243 | 8990 | }, |
| 8244 | 8991 | .OPNOTSUPP, .INVAL, .NOSYS => { |
| 8245 | 8992 | // Give calling code chance to observe before trying |
| 8246 | 8993 | // something else. |
| 8247 | | current_thread.endSyscall(); |
| 8994 | syscall.finish(); |
| 8248 | 8995 | @atomicStore(UseCopyFileRange, &t.use_copy_file_range, .disabled, .monotonic); |
| 8249 | 8996 | return 0; |
| 8250 | 8997 | }, |
| 8251 | 8998 | else => |e| { |
| 8252 | | current_thread.endSyscall(); |
| 8999 | syscall.finish(); |
| 8253 | 9000 | assert(error.Unexpected == switch (e) { |
| 8254 | 9001 | .FBIG => return error.FileTooBig, |
| 8255 | 9002 | .IO => return error.InputOutput, |
| ... | ... | @@ -8274,27 +9021,27 @@ fn fileWriteFilePositional( |
| 8274 | 9021 | } |
| 8275 | 9022 | }, |
| 8276 | 9023 | .freebsd => n: { |
| 8277 | | try current_thread.beginSyscall(); |
| 9024 | const syscall: Syscall = try .start(); |
| 8278 | 9025 | while (true) { |
| 8279 | 9026 | const rc = std.c.copy_file_range(in_fd, off_in_ptr, out_fd, &off_out, @intFromEnum(limit), 0); |
| 8280 | 9027 | switch (std.c.errno(rc)) { |
| 8281 | 9028 | .SUCCESS => { |
| 8282 | | current_thread.endSyscall(); |
| 9029 | syscall.finish(); |
| 8283 | 9030 | break :n @intCast(rc); |
| 8284 | 9031 | }, |
| 8285 | 9032 | .INTR => { |
| 8286 | | try current_thread.checkCancel(); |
| 9033 | try syscall.checkCancel(); |
| 8287 | 9034 | continue; |
| 8288 | 9035 | }, |
| 8289 | 9036 | .OPNOTSUPP, .INVAL, .NOSYS => { |
| 8290 | 9037 | // Give calling code chance to observe before trying |
| 8291 | 9038 | // something else. |
| 8292 | | current_thread.endSyscall(); |
| 9039 | syscall.finish(); |
| 8293 | 9040 | @atomicStore(UseCopyFileRange, &t.use_copy_file_range, .disabled, .monotonic); |
| 8294 | 9041 | return 0; |
| 8295 | 9042 | }, |
| 8296 | 9043 | else => |e| { |
| 8297 | | current_thread.endSyscall(); |
| 9044 | syscall.finish(); |
| 8298 | 9045 | assert(error.Unexpected == switch (e) { |
| 8299 | 9046 | .FBIG => return error.FileTooBig, |
| 8300 | 9047 | .IO => return error.InputOutput, |
| ... | ... | @@ -8334,28 +9081,27 @@ fn fileWriteFilePositional( |
| 8334 | 9081 | file_reader.interface.toss(n -| header.len); |
| 8335 | 9082 | return n; |
| 8336 | 9083 | } |
| 8337 | | const current_thread = Thread.getCurrent(t); |
| 8338 | | try current_thread.beginSyscall(); |
| 9084 | const syscall: Syscall = try .start(); |
| 8339 | 9085 | while (true) { |
| 8340 | 9086 | const rc = std.c.fcopyfile(in_fd, out_fd, null, .{ .DATA = true }); |
| 8341 | 9087 | switch (posix.errno(rc)) { |
| 8342 | 9088 | .SUCCESS => { |
| 8343 | | current_thread.endSyscall(); |
| 9089 | syscall.finish(); |
| 8344 | 9090 | break; |
| 8345 | 9091 | }, |
| 8346 | 9092 | .INTR => { |
| 8347 | | try current_thread.checkCancel(); |
| 9093 | try syscall.checkCancel(); |
| 8348 | 9094 | continue; |
| 8349 | 9095 | }, |
| 8350 | 9096 | .OPNOTSUPP => { |
| 8351 | 9097 | // Give calling code chance to observe before trying |
| 8352 | 9098 | // something else. |
| 8353 | | current_thread.endSyscall(); |
| 9099 | syscall.finish(); |
| 8354 | 9100 | @atomicStore(UseFcopyfile, &t.use_fcopyfile, .disabled, .monotonic); |
| 8355 | 9101 | return 0; |
| 8356 | 9102 | }, |
| 8357 | 9103 | else => |e| { |
| 8358 | | current_thread.endSyscall(); |
| 9104 | syscall.finish(); |
| 8359 | 9105 | assert(error.Unexpected == switch (e) { |
| 8360 | 9106 | .NOMEM => return error.SystemResources, |
| 8361 | 9107 | .INVAL => |err| errnoBug(err), |
| ... | ... | @@ -8372,9 +9118,7 @@ fn fileWriteFilePositional( |
| 8372 | 9118 | return error.Unimplemented; |
| 8373 | 9119 | } |
| 8374 | 9120 | |
| 8375 | | fn nowPosix(userdata: ?*anyopaque, clock: Io.Clock) Io.Clock.Error!Io.Timestamp { |
| 8376 | | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8377 | | _ = t; |
| 9121 | fn nowPosix(clock: Io.Clock) Io.Clock.Error!Io.Timestamp { |
| 8378 | 9122 | const clock_id: posix.clockid_t = clockToPosix(clock); |
| 8379 | 9123 | var tp: posix.timespec = undefined; |
| 8380 | 9124 | switch (posix.errno(posix.system.clock_gettime(clock_id, &tp))) { |
| ... | ... | @@ -8384,15 +9128,17 @@ fn nowPosix(userdata: ?*anyopaque, clock: Io.Clock) Io.Clock.Error!Io.Timestamp |
| 8384 | 9128 | } |
| 8385 | 9129 | } |
| 8386 | 9130 | |
| 8387 | | const now = switch (native_os) { |
| 8388 | | .windows => nowWindows, |
| 8389 | | .wasi => nowWasi, |
| 8390 | | else => nowPosix, |
| 8391 | | }; |
| 8392 | | |
| 8393 | | fn nowWindows(userdata: ?*anyopaque, clock: Io.Clock) Io.Clock.Error!Io.Timestamp { |
| 9131 | fn now(userdata: ?*anyopaque, clock: Io.Clock) Io.Clock.Error!Io.Timestamp { |
| 8394 | 9132 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8395 | 9133 | _ = t; |
| 9134 | return switch (native_os) { |
| 9135 | .windows => nowWindows(clock), |
| 9136 | .wasi => nowWasi(clock), |
| 9137 | else => nowPosix(clock), |
| 9138 | }; |
| 9139 | } |
| 9140 | |
| 9141 | fn nowWindows(clock: Io.Clock) Io.Clock.Error!Io.Timestamp { |
| 8396 | 9142 | switch (clock) { |
| 8397 | 9143 | .real => { |
| 8398 | 9144 | // RtlGetSystemTimePrecise() has a granularity of 100 nanoseconds |
| ... | ... | @@ -8425,25 +9171,24 @@ fn nowWindows(userdata: ?*anyopaque, clock: Io.Clock) Io.Clock.Error!Io.Timestam |
| 8425 | 9171 | } |
| 8426 | 9172 | } |
| 8427 | 9173 | |
| 8428 | | fn nowWasi(userdata: ?*anyopaque, clock: Io.Clock) Io.Clock.Error!Io.Timestamp { |
| 8429 | | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8430 | | _ = t; |
| 9174 | fn nowWasi(clock: Io.Clock) Io.Clock.Error!Io.Timestamp { |
| 8431 | 9175 | var ns: std.os.wasi.timestamp_t = undefined; |
| 8432 | 9176 | const err = std.os.wasi.clock_time_get(clockToWasi(clock), 1, &ns); |
| 8433 | 9177 | if (err != .SUCCESS) return error.Unexpected; |
| 8434 | 9178 | return .fromNanoseconds(ns); |
| 8435 | 9179 | } |
| 8436 | 9180 | |
| 8437 | | const sleep = switch (native_os) { |
| 8438 | | .windows => sleepWindows, |
| 8439 | | .wasi => sleepWasi, |
| 8440 | | .linux => sleepLinux, |
| 8441 | | else => sleepPosix, |
| 8442 | | }; |
| 8443 | | |
| 8444 | | fn sleepLinux(userdata: ?*anyopaque, timeout: Io.Timeout) Io.SleepError!void { |
| 9181 | fn sleep(userdata: ?*anyopaque, timeout: Io.Timeout) Io.SleepError!void { |
| 8445 | 9182 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8446 | | const current_thread = Thread.getCurrent(t); |
| 9183 | if (use_parking_sleep) return parking_sleep.sleep(timeout); |
| 9184 | switch (native_os) { |
| 9185 | .wasi => return sleepWasi(t, timeout), |
| 9186 | .linux => return sleepLinux(timeout), |
| 9187 | else => return sleepPosix(t, timeout), |
| 9188 | } |
| 9189 | } |
| 9190 | |
| 9191 | fn sleepLinux(timeout: Io.Timeout) Io.SleepError!void { |
| 8447 | 9192 | const clock_id: posix.clockid_t = clockToPosix(switch (timeout) { |
| 8448 | 9193 | .none => .awake, |
| 8449 | 9194 | .duration => |d| d.clock, |
| ... | ... | @@ -8455,22 +9200,22 @@ fn sleepLinux(userdata: ?*anyopaque, timeout: Io.Timeout) Io.SleepError!void { |
| 8455 | 9200 | .deadline => |deadline| deadline.raw.nanoseconds, |
| 8456 | 9201 | }; |
| 8457 | 9202 | var timespec: posix.timespec = timestampToPosix(deadline_nanoseconds); |
| 8458 | | try current_thread.beginSyscall(); |
| 9203 | const syscall: Syscall = try .start(); |
| 8459 | 9204 | while (true) { |
| 8460 | 9205 | switch (std.os.linux.errno(std.os.linux.clock_nanosleep(clock_id, .{ .ABSTIME = switch (timeout) { |
| 8461 | 9206 | .none, .duration => false, |
| 8462 | 9207 | .deadline => true, |
| 8463 | 9208 | } }, ×pec, ×pec))) { |
| 8464 | 9209 | .SUCCESS => { |
| 8465 | | current_thread.endSyscall(); |
| 9210 | syscall.finish(); |
| 8466 | 9211 | return; |
| 8467 | 9212 | }, |
| 8468 | 9213 | .INTR => { |
| 8469 | | try current_thread.checkCancel(); |
| 9214 | try syscall.checkCancel(); |
| 8470 | 9215 | continue; |
| 8471 | 9216 | }, |
| 8472 | 9217 | else => |e| { |
| 8473 | | current_thread.endSyscall(); |
| 9218 | syscall.finish(); |
| 8474 | 9219 | switch (e) { |
| 8475 | 9220 | .INVAL => return error.UnsupportedClock, |
| 8476 | 9221 | else => |err| return posix.unexpectedErrno(err), |
| ... | ... | @@ -8480,23 +9225,7 @@ fn sleepLinux(userdata: ?*anyopaque, timeout: Io.Timeout) Io.SleepError!void { |
| 8480 | 9225 | } |
| 8481 | 9226 | } |
| 8482 | 9227 | |
| 8483 | | fn sleepWindows(userdata: ?*anyopaque, timeout: Io.Timeout) Io.SleepError!void { |
| 8484 | | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8485 | | const current_thread = Thread.getCurrent(t); |
| 8486 | | const t_io = ioBasic(t); |
| 8487 | | try current_thread.checkCancel(); |
| 8488 | | const ms = ms: { |
| 8489 | | const d = (try timeout.toDurationFromNow(t_io)) orelse |
| 8490 | | break :ms std.math.maxInt(windows.DWORD); |
| 8491 | | break :ms std.math.lossyCast(windows.DWORD, d.raw.toMilliseconds()); |
| 8492 | | }; |
| 8493 | | // TODO: alertable true with checkCancel in a loop plus deadline |
| 8494 | | _ = windows.kernel32.SleepEx(ms, windows.FALSE); |
| 8495 | | } |
| 8496 | | |
| 8497 | | fn sleepWasi(userdata: ?*anyopaque, timeout: Io.Timeout) Io.SleepError!void { |
| 8498 | | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8499 | | const current_thread = Thread.getCurrent(t); |
| 9228 | fn sleepWasi(t: *Threaded, timeout: Io.Timeout) Io.SleepError!void { |
| 8500 | 9229 | const t_io = ioBasic(t); |
| 8501 | 9230 | const w = std.os.wasi; |
| 8502 | 9231 | |
| ... | ... | @@ -8520,14 +9249,12 @@ fn sleepWasi(userdata: ?*anyopaque, timeout: Io.Timeout) Io.SleepError!void { |
| 8520 | 9249 | }; |
| 8521 | 9250 | var event: w.event_t = undefined; |
| 8522 | 9251 | var nevents: usize = undefined; |
| 8523 | | try current_thread.beginSyscall(); |
| 9252 | const syscall: Syscall = try .start(); |
| 8524 | 9253 | _ = w.poll_oneoff(&in, &event, 1, &nevents); |
| 8525 | | current_thread.endSyscall(); |
| 9254 | syscall.finish(); |
| 8526 | 9255 | } |
| 8527 | 9256 | |
| 8528 | | fn sleepPosix(userdata: ?*anyopaque, timeout: Io.Timeout) Io.SleepError!void { |
| 8529 | | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8530 | | const current_thread = Thread.getCurrent(t); |
| 9257 | fn sleepPosix(t: *Threaded, timeout: Io.Timeout) Io.SleepError!void { |
| 8531 | 9258 | const t_io = ioBasic(t); |
| 8532 | 9259 | const sec_type = @typeInfo(posix.timespec).@"struct".fields[0].type; |
| 8533 | 9260 | const nsec_type = @typeInfo(posix.timespec).@"struct".fields[1].type; |
| ... | ... | @@ -8539,48 +9266,85 @@ fn sleepPosix(userdata: ?*anyopaque, timeout: Io.Timeout) Io.SleepError!void { |
| 8539 | 9266 | }; |
| 8540 | 9267 | break :t timestampToPosix(d.raw.toNanoseconds()); |
| 8541 | 9268 | }; |
| 8542 | | try current_thread.beginSyscall(); |
| 9269 | const syscall: Syscall = try .start(); |
| 8543 | 9270 | while (true) { |
| 8544 | 9271 | switch (posix.errno(posix.system.nanosleep(×pec, ×pec))) { |
| 8545 | 9272 | .INTR => { |
| 8546 | | try current_thread.checkCancel(); |
| 9273 | try syscall.checkCancel(); |
| 8547 | 9274 | continue; |
| 8548 | 9275 | }, |
| 8549 | 9276 | // This prong handles success as well as unexpected errors. |
| 8550 | | else => return current_thread.endSyscall(), |
| 9277 | else => return syscall.finish(), |
| 8551 | 9278 | } |
| 8552 | 9279 | } |
| 8553 | 9280 | } |
| 8554 | 9281 | |
| 8555 | 9282 | fn select(userdata: ?*anyopaque, futures: []const *Io.AnyFuture) Io.Cancelable!usize { |
| 8556 | 9283 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9284 | _ = t; |
| 8557 | 9285 | |
| 8558 | | var event: Io.Event = .unset; |
| 9286 | var num_completed: std.atomic.Value(u32) = .init(0); |
| 8559 | 9287 | |
| 8560 | | for (futures, 0..) |future, i| { |
| 8561 | | const closure: *AsyncClosure = @ptrCast(@alignCast(future)); |
| 8562 | | if (@atomicRmw(?*Io.Event, &closure.select_condition, .Xchg, &event, .seq_cst) == AsyncClosure.done_event) { |
| 8563 | | for (futures[0..i]) |cleanup_future| { |
| 8564 | | const cleanup_closure: *AsyncClosure = @ptrCast(@alignCast(cleanup_future)); |
| 8565 | | if (@atomicRmw(?*Io.Event, &cleanup_closure.select_condition, .Xchg, null, .seq_cst) == AsyncClosure.done_event) { |
| 8566 | | cleanup_closure.event.waitUncancelable(ioBasic(t)); // Ensure no reference to our stack-allocated event. |
| 8567 | | } |
| 8568 | | } |
| 8569 | | return i; |
| 9288 | for (futures, 0..) |any_future, i| { |
| 9289 | const future: *Future = @ptrCast(@alignCast(any_future)); |
| 9290 | future.awaiter = &num_completed; |
| 9291 | const old_status = future.status.fetchOr( |
| 9292 | .{ .tag = .pending_awaited, .thread = .null }, |
| 9293 | .release, // release `future.awaiter` |
| 9294 | ); |
| 9295 | switch (old_status.tag) { |
| 9296 | .pending => {}, |
| 9297 | .pending_awaited => unreachable, // `await` raced with `select` |
| 9298 | .pending_canceled => unreachable, // `cancel` raced with `select` |
| 9299 | .done => { |
| 9300 | future.status.store(old_status, .monotonic); |
| 9301 | _ = finishSelect(&num_completed, futures[0..i]); |
| 9302 | return i; |
| 9303 | }, |
| 8570 | 9304 | } |
| 8571 | 9305 | } |
| 8572 | 9306 | |
| 8573 | | try event.wait(ioBasic(t)); |
| 9307 | errdefer _ = finishSelect(&num_completed, futures); |
| 8574 | 9308 | |
| 8575 | | var result: ?usize = null; |
| 8576 | | for (futures, 0..) |future, i| { |
| 8577 | | const closure: *AsyncClosure = @ptrCast(@alignCast(future)); |
| 8578 | | if (@atomicRmw(?*Io.Event, &closure.select_condition, .Xchg, null, .seq_cst) == AsyncClosure.done_event) { |
| 8579 | | closure.event.waitUncancelable(ioBasic(t)); // Ensure no reference to our stack-allocated event. |
| 8580 | | if (result == null) result = i; // In case multiple are ready, return first. |
| 8581 | | } |
| 9309 | while (true) { |
| 9310 | const n = num_completed.load(.acquire); |
| 9311 | if (n > 0) break; |
| 9312 | assert(n < futures.len); |
| 9313 | try Thread.futexWait(&num_completed.raw, n, null); |
| 9314 | } |
| 9315 | return finishSelect(&num_completed, futures).?; |
| 9316 | } |
| 9317 | fn finishSelect( |
| 9318 | num_completed: *std.atomic.Value(u32), |
| 9319 | futures: []const *Io.AnyFuture, |
| 9320 | ) ?usize { |
| 9321 | var completed_index: ?usize = null; |
| 9322 | var expect_completed: u32 = 0; |
| 9323 | for (futures, 0..) |any_future, i| { |
| 9324 | const future: *Future = @ptrCast(@alignCast(any_future)); |
| 9325 | // This operation will convert `.pending_awaited` to `.pending`, or leave `.done` untouched. |
| 9326 | switch (future.status.fetchAnd( |
| 9327 | .{ .tag = @enumFromInt(0b10), .thread = .all_ones }, |
| 9328 | .monotonic, |
| 9329 | ).tag) { |
| 9330 | .pending_awaited => {}, |
| 9331 | .pending => unreachable, |
| 9332 | .pending_canceled => unreachable, |
| 9333 | .done => { |
| 9334 | expect_completed += 1; |
| 9335 | completed_index = i; |
| 9336 | }, |
| 9337 | } |
| 9338 | } |
| 9339 | // If any future has just finished, wait for it to signal `num_completed` to avoid dangling |
| 9340 | // references to stack memory. |
| 9341 | while (true) { |
| 9342 | const n = num_completed.load(.acquire); |
| 9343 | if (n == expect_completed) break; |
| 9344 | assert(n < expect_completed); |
| 9345 | Thread.futexWaitUncancelable(&num_completed.raw, n, null); |
| 8582 | 9346 | } |
| 8583 | | return result.?; |
| 9347 | return completed_index; |
| 8584 | 9348 | } |
| 8585 | 9349 | |
| 8586 | 9350 | fn netListenIpPosix( |
| ... | ... | @@ -8590,37 +9354,37 @@ fn netListenIpPosix( |
| 8590 | 9354 | ) IpAddress.ListenError!net.Server { |
| 8591 | 9355 | if (!have_networking) return error.NetworkDown; |
| 8592 | 9356 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8593 | | const current_thread = Thread.getCurrent(t); |
| 9357 | _ = t; |
| 8594 | 9358 | const family = posixAddressFamily(&address); |
| 8595 | | const socket_fd = try openSocketPosix(current_thread, family, .{ |
| 9359 | const socket_fd = try openSocketPosix(family, .{ |
| 8596 | 9360 | .mode = options.mode, |
| 8597 | 9361 | .protocol = options.protocol, |
| 8598 | 9362 | }); |
| 8599 | 9363 | errdefer posix.close(socket_fd); |
| 8600 | 9364 | |
| 8601 | 9365 | if (options.reuse_address) { |
| 8602 | | try setSocketOption(current_thread, socket_fd, posix.SOL.SOCKET, posix.SO.REUSEADDR, 1); |
| 9366 | try setSocketOption(socket_fd, posix.SOL.SOCKET, posix.SO.REUSEADDR, 1); |
| 8603 | 9367 | if (@hasDecl(posix.SO, "REUSEPORT")) |
| 8604 | | try setSocketOption(current_thread, socket_fd, posix.SOL.SOCKET, posix.SO.REUSEPORT, 1); |
| 9368 | try setSocketOption(socket_fd, posix.SOL.SOCKET, posix.SO.REUSEPORT, 1); |
| 8605 | 9369 | } |
| 8606 | 9370 | |
| 8607 | 9371 | var storage: PosixAddress = undefined; |
| 8608 | 9372 | var addr_len = addressToPosix(&address, &storage); |
| 8609 | | try posixBind(current_thread, socket_fd, &storage.any, addr_len); |
| 9373 | try posixBind(socket_fd, &storage.any, addr_len); |
| 8610 | 9374 | |
| 8611 | | try current_thread.beginSyscall(); |
| 9375 | const syscall: Syscall = try .start(); |
| 8612 | 9376 | while (true) { |
| 8613 | 9377 | switch (posix.errno(posix.system.listen(socket_fd, options.kernel_backlog))) { |
| 8614 | 9378 | .SUCCESS => { |
| 8615 | | current_thread.endSyscall(); |
| 9379 | syscall.finish(); |
| 8616 | 9380 | break; |
| 8617 | 9381 | }, |
| 8618 | 9382 | .INTR => { |
| 8619 | | try current_thread.checkCancel(); |
| 9383 | try syscall.checkCancel(); |
| 8620 | 9384 | continue; |
| 8621 | 9385 | }, |
| 8622 | 9386 | else => |e| { |
| 8623 | | current_thread.endSyscall(); |
| 9387 | syscall.finish(); |
| 8624 | 9388 | switch (e) { |
| 8625 | 9389 | .ADDRINUSE => return error.AddressInUse, |
| 8626 | 9390 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -8630,7 +9394,7 @@ fn netListenIpPosix( |
| 8630 | 9394 | } |
| 8631 | 9395 | } |
| 8632 | 9396 | |
| 8633 | | try posixGetSockName(current_thread, socket_fd, &storage.any, &addr_len); |
| 9397 | try posixGetSockName(socket_fd, &storage.any, &addr_len); |
| 8634 | 9398 | return .{ |
| 8635 | 9399 | .socket = .{ |
| 8636 | 9400 | .handle = socket_fd, |
| ... | ... | @@ -8646,9 +9410,8 @@ fn netListenIpWindows( |
| 8646 | 9410 | ) IpAddress.ListenError!net.Server { |
| 8647 | 9411 | if (!have_networking) return error.NetworkDown; |
| 8648 | 9412 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8649 | | const current_thread = Thread.getCurrent(t); |
| 8650 | 9413 | const family = posixAddressFamily(&address); |
| 8651 | | const socket_handle = try openSocketWsa(t, current_thread, family, .{ |
| 9414 | const socket_handle = try openSocketWsa(t, family, .{ |
| 8652 | 9415 | .mode = options.mode, |
| 8653 | 9416 | .protocol = options.protocol, |
| 8654 | 9417 | }); |
| ... | ... | @@ -8660,27 +9423,27 @@ fn netListenIpWindows( |
| 8660 | 9423 | var storage: WsaAddress = undefined; |
| 8661 | 9424 | var addr_len = addressToWsa(&address, &storage); |
| 8662 | 9425 | |
| 8663 | | try current_thread.beginSyscall(); |
| 9426 | var syscall: Syscall = try .start(); |
| 8664 | 9427 | while (true) { |
| 8665 | 9428 | const rc = ws2_32.bind(socket_handle, &storage.any, addr_len); |
| 8666 | 9429 | if (rc != ws2_32.SOCKET_ERROR) { |
| 8667 | | current_thread.endSyscall(); |
| 9430 | syscall.finish(); |
| 8668 | 9431 | break; |
| 8669 | 9432 | } |
| 8670 | 9433 | switch (ws2_32.WSAGetLastError()) { |
| 8671 | | .EINTR => { |
| 8672 | | try current_thread.checkCancel(); |
| 8673 | | continue; |
| 8674 | | }, |
| 8675 | 9434 | .NOTINITIALISED => { |
| 9435 | syscall.finish(); |
| 8676 | 9436 | try initializeWsa(t); |
| 8677 | | try current_thread.checkCancel(); |
| 9437 | syscall = try .start(); |
| 9438 | continue; |
| 9439 | }, |
| 9440 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 9441 | try syscall.checkCancel(); |
| 8678 | 9442 | continue; |
| 8679 | 9443 | }, |
| 8680 | 9444 | else => |e| { |
| 8681 | | current_thread.endSyscall(); |
| 9445 | syscall.finish(); |
| 8682 | 9446 | switch (e) { |
| 8683 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 8684 | 9447 | .EADDRINUSE => return error.AddressInUse, |
| 8685 | 9448 | .EADDRNOTAVAIL => return error.AddressUnavailable, |
| 8686 | 9449 | .ENOTSOCK => |err| return wsaErrorBug(err), |
| ... | ... | @@ -8694,27 +9457,27 @@ fn netListenIpWindows( |
| 8694 | 9457 | } |
| 8695 | 9458 | } |
| 8696 | 9459 | |
| 8697 | | try current_thread.beginSyscall(); |
| 9460 | syscall = try .start(); |
| 8698 | 9461 | while (true) { |
| 8699 | 9462 | const rc = ws2_32.listen(socket_handle, options.kernel_backlog); |
| 8700 | 9463 | if (rc != ws2_32.SOCKET_ERROR) { |
| 8701 | | current_thread.endSyscall(); |
| 9464 | syscall.finish(); |
| 8702 | 9465 | break; |
| 8703 | 9466 | } |
| 8704 | 9467 | switch (ws2_32.WSAGetLastError()) { |
| 8705 | | .EINTR => { |
| 8706 | | try current_thread.checkCancel(); |
| 8707 | | continue; |
| 8708 | | }, |
| 8709 | 9468 | .NOTINITIALISED => { |
| 9469 | syscall.finish(); |
| 8710 | 9470 | try initializeWsa(t); |
| 8711 | | try current_thread.checkCancel(); |
| 9471 | syscall = try .start(); |
| 9472 | continue; |
| 9473 | }, |
| 9474 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 9475 | try syscall.checkCancel(); |
| 8712 | 9476 | continue; |
| 8713 | 9477 | }, |
| 8714 | 9478 | else => |e| { |
| 8715 | | current_thread.endSyscall(); |
| 9479 | syscall.finish(); |
| 8716 | 9480 | switch (e) { |
| 8717 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 8718 | 9481 | .ENETDOWN => return error.NetworkDown, |
| 8719 | 9482 | .EADDRINUSE => return error.AddressInUse, |
| 8720 | 9483 | .EISCONN => |err| return wsaErrorBug(err), |
| ... | ... | @@ -8729,7 +9492,7 @@ fn netListenIpWindows( |
| 8729 | 9492 | } |
| 8730 | 9493 | } |
| 8731 | 9494 | |
| 8732 | | try wsaGetSockName(t, current_thread, socket_handle, &storage.any, &addr_len); |
| 9495 | try wsaGetSockName(t, socket_handle, &storage.any, &addr_len); |
| 8733 | 9496 | |
| 8734 | 9497 | return .{ |
| 8735 | 9498 | .socket = .{ |
| ... | ... | @@ -8757,8 +9520,8 @@ fn netListenUnixPosix( |
| 8757 | 9520 | ) net.UnixAddress.ListenError!net.Socket.Handle { |
| 8758 | 9521 | if (!net.has_unix_sockets) return error.AddressFamilyUnsupported; |
| 8759 | 9522 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8760 | | const current_thread = Thread.getCurrent(t); |
| 8761 | | const socket_fd = openSocketPosix(current_thread, posix.AF.UNIX, .{ .mode = .stream }) catch |err| switch (err) { |
| 9523 | _ = t; |
| 9524 | const socket_fd = openSocketPosix(posix.AF.UNIX, .{ .mode = .stream }) catch |err| switch (err) { |
| 8762 | 9525 | error.ProtocolUnsupportedBySystem => return error.AddressFamilyUnsupported, |
| 8763 | 9526 | error.ProtocolUnsupportedByAddressFamily => return error.AddressFamilyUnsupported, |
| 8764 | 9527 | error.SocketModeUnsupported => return error.AddressFamilyUnsupported, |
| ... | ... | @@ -8769,21 +9532,21 @@ fn netListenUnixPosix( |
| 8769 | 9532 | |
| 8770 | 9533 | var storage: UnixAddress = undefined; |
| 8771 | 9534 | const addr_len = addressUnixToPosix(address, &storage); |
| 8772 | | try posixBindUnix(current_thread, socket_fd, &storage.any, addr_len); |
| 9535 | try posixBindUnix(socket_fd, &storage.any, addr_len); |
| 8773 | 9536 | |
| 8774 | | try current_thread.beginSyscall(); |
| 9537 | const syscall: Syscall = try .start(); |
| 8775 | 9538 | while (true) { |
| 8776 | 9539 | switch (posix.errno(posix.system.listen(socket_fd, options.kernel_backlog))) { |
| 8777 | 9540 | .SUCCESS => { |
| 8778 | | current_thread.endSyscall(); |
| 9541 | syscall.finish(); |
| 8779 | 9542 | break; |
| 8780 | 9543 | }, |
| 8781 | 9544 | .INTR => { |
| 8782 | | try current_thread.checkCancel(); |
| 9545 | try syscall.checkCancel(); |
| 8783 | 9546 | continue; |
| 8784 | 9547 | }, |
| 8785 | 9548 | else => |e| { |
| 8786 | | current_thread.endSyscall(); |
| 9549 | syscall.finish(); |
| 8787 | 9550 | switch (e) { |
| 8788 | 9551 | .ADDRINUSE => return error.AddressInUse, |
| 8789 | 9552 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -8803,9 +9566,8 @@ fn netListenUnixWindows( |
| 8803 | 9566 | ) net.UnixAddress.ListenError!net.Socket.Handle { |
| 8804 | 9567 | if (!net.has_unix_sockets) return error.AddressFamilyUnsupported; |
| 8805 | 9568 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 8806 | | const current_thread = Thread.getCurrent(t); |
| 8807 | 9569 | |
| 8808 | | const socket_handle = openSocketWsa(t, current_thread, posix.AF.UNIX, .{ .mode = .stream }) catch |err| switch (err) { |
| 9570 | const socket_handle = openSocketWsa(t, posix.AF.UNIX, .{ .mode = .stream }) catch |err| switch (err) { |
| 8809 | 9571 | error.ProtocolUnsupportedByAddressFamily => return error.AddressFamilyUnsupported, |
| 8810 | 9572 | else => |e| return e, |
| 8811 | 9573 | }; |
| ... | ... | @@ -8814,24 +9576,24 @@ fn netListenUnixWindows( |
| 8814 | 9576 | var storage: WsaAddress = undefined; |
| 8815 | 9577 | const addr_len = addressUnixToWsa(address, &storage); |
| 8816 | 9578 | |
| 8817 | | try current_thread.beginSyscall(); |
| 9579 | var syscall: Syscall = try .start(); |
| 8818 | 9580 | while (true) { |
| 8819 | 9581 | const rc = ws2_32.bind(socket_handle, &storage.any, addr_len); |
| 8820 | 9582 | if (rc != ws2_32.SOCKET_ERROR) break; |
| 8821 | 9583 | switch (ws2_32.WSAGetLastError()) { |
| 8822 | | .EINTR => { |
| 8823 | | try current_thread.checkCancel(); |
| 8824 | | continue; |
| 8825 | | }, |
| 8826 | 9584 | .NOTINITIALISED => { |
| 9585 | syscall.finish(); |
| 8827 | 9586 | try initializeWsa(t); |
| 8828 | | try current_thread.checkCancel(); |
| 9587 | syscall = try .start(); |
| 9588 | continue; |
| 9589 | }, |
| 9590 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 9591 | try syscall.checkCancel(); |
| 8829 | 9592 | continue; |
| 8830 | 9593 | }, |
| 8831 | 9594 | else => |e| { |
| 8832 | | current_thread.endSyscall(); |
| 9595 | syscall.finish(); |
| 8833 | 9596 | switch (e) { |
| 8834 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 8835 | 9597 | .EADDRINUSE => return error.AddressInUse, |
| 8836 | 9598 | .EADDRNOTAVAIL => return error.AddressUnavailable, |
| 8837 | 9599 | .ENOTSOCK => |err| return wsaErrorBug(err), |
| ... | ... | @@ -8846,22 +9608,23 @@ fn netListenUnixWindows( |
| 8846 | 9608 | } |
| 8847 | 9609 | |
| 8848 | 9610 | while (true) { |
| 8849 | | try current_thread.checkCancel(); |
| 9611 | try syscall.checkCancel(); |
| 8850 | 9612 | const rc = ws2_32.listen(socket_handle, options.kernel_backlog); |
| 8851 | 9613 | if (rc != ws2_32.SOCKET_ERROR) { |
| 8852 | | current_thread.endSyscall(); |
| 9614 | syscall.finish(); |
| 8853 | 9615 | return socket_handle; |
| 8854 | 9616 | } |
| 8855 | 9617 | switch (ws2_32.WSAGetLastError()) { |
| 8856 | | .EINTR => continue, |
| 9618 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => continue, |
| 8857 | 9619 | .NOTINITIALISED => { |
| 9620 | syscall.finish(); |
| 8858 | 9621 | try initializeWsa(t); |
| 9622 | syscall = try .start(); |
| 8859 | 9623 | continue; |
| 8860 | 9624 | }, |
| 8861 | 9625 | else => |e| { |
| 8862 | | current_thread.endSyscall(); |
| 9626 | syscall.finish(); |
| 8863 | 9627 | switch (e) { |
| 8864 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 8865 | 9628 | .ENETDOWN => return error.NetworkDown, |
| 8866 | 9629 | .EADDRINUSE => return error.AddressInUse, |
| 8867 | 9630 | .EISCONN => |err| return wsaErrorBug(err), |
| ... | ... | @@ -8889,24 +9652,23 @@ fn netListenUnixUnavailable( |
| 8889 | 9652 | } |
| 8890 | 9653 | |
| 8891 | 9654 | fn posixBindUnix( |
| 8892 | | current_thread: *Thread, |
| 8893 | 9655 | fd: posix.socket_t, |
| 8894 | 9656 | addr: *const posix.sockaddr, |
| 8895 | 9657 | addr_len: posix.socklen_t, |
| 8896 | 9658 | ) !void { |
| 8897 | | try current_thread.beginSyscall(); |
| 9659 | const syscall: Syscall = try .start(); |
| 8898 | 9660 | while (true) { |
| 8899 | 9661 | switch (posix.errno(posix.system.bind(fd, addr, addr_len))) { |
| 8900 | 9662 | .SUCCESS => { |
| 8901 | | current_thread.endSyscall(); |
| 9663 | syscall.finish(); |
| 8902 | 9664 | break; |
| 8903 | 9665 | }, |
| 8904 | 9666 | .INTR => { |
| 8905 | | try current_thread.checkCancel(); |
| 9667 | try syscall.checkCancel(); |
| 8906 | 9668 | continue; |
| 8907 | 9669 | }, |
| 8908 | 9670 | else => |e| { |
| 8909 | | current_thread.endSyscall(); |
| 9671 | syscall.finish(); |
| 8910 | 9672 | switch (e) { |
| 8911 | 9673 | .ACCES => return error.AccessDenied, |
| 8912 | 9674 | .ADDRINUSE => return error.AddressInUse, |
| ... | ... | @@ -8933,24 +9695,23 @@ fn posixBindUnix( |
| 8933 | 9695 | } |
| 8934 | 9696 | |
| 8935 | 9697 | fn posixBind( |
| 8936 | | current_thread: *Thread, |
| 8937 | 9698 | socket_fd: posix.socket_t, |
| 8938 | 9699 | addr: *const posix.sockaddr, |
| 8939 | 9700 | addr_len: posix.socklen_t, |
| 8940 | 9701 | ) !void { |
| 8941 | | try current_thread.beginSyscall(); |
| 9702 | const syscall: Syscall = try .start(); |
| 8942 | 9703 | while (true) { |
| 8943 | 9704 | switch (posix.errno(posix.system.bind(socket_fd, addr, addr_len))) { |
| 8944 | 9705 | .SUCCESS => { |
| 8945 | | current_thread.endSyscall(); |
| 9706 | syscall.finish(); |
| 8946 | 9707 | break; |
| 8947 | 9708 | }, |
| 8948 | 9709 | .INTR => { |
| 8949 | | try current_thread.checkCancel(); |
| 9710 | try syscall.checkCancel(); |
| 8950 | 9711 | continue; |
| 8951 | 9712 | }, |
| 8952 | 9713 | else => |e| { |
| 8953 | | current_thread.endSyscall(); |
| 9714 | syscall.finish(); |
| 8954 | 9715 | switch (e) { |
| 8955 | 9716 | .ADDRINUSE => return error.AddressInUse, |
| 8956 | 9717 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -8968,24 +9729,23 @@ fn posixBind( |
| 8968 | 9729 | } |
| 8969 | 9730 | |
| 8970 | 9731 | fn posixConnect( |
| 8971 | | current_thread: *Thread, |
| 8972 | 9732 | socket_fd: posix.socket_t, |
| 8973 | 9733 | addr: *const posix.sockaddr, |
| 8974 | 9734 | addr_len: posix.socklen_t, |
| 8975 | 9735 | ) !void { |
| 8976 | | try current_thread.beginSyscall(); |
| 9736 | const syscall: Syscall = try .start(); |
| 8977 | 9737 | while (true) { |
| 8978 | 9738 | switch (posix.errno(posix.system.connect(socket_fd, addr, addr_len))) { |
| 8979 | 9739 | .SUCCESS => { |
| 8980 | | current_thread.endSyscall(); |
| 9740 | syscall.finish(); |
| 8981 | 9741 | return; |
| 8982 | 9742 | }, |
| 8983 | 9743 | .INTR => { |
| 8984 | | try current_thread.checkCancel(); |
| 9744 | try syscall.checkCancel(); |
| 8985 | 9745 | continue; |
| 8986 | 9746 | }, |
| 8987 | 9747 | else => |e| { |
| 8988 | | current_thread.endSyscall(); |
| 9748 | syscall.finish(); |
| 8989 | 9749 | switch (e) { |
| 8990 | 9750 | .ADDRNOTAVAIL => return error.AddressUnavailable, |
| 8991 | 9751 | .AFNOSUPPORT => return error.AddressFamilyUnsupported, |
| ... | ... | @@ -9014,24 +9774,23 @@ fn posixConnect( |
| 9014 | 9774 | } |
| 9015 | 9775 | |
| 9016 | 9776 | fn posixConnectUnix( |
| 9017 | | current_thread: *Thread, |
| 9018 | 9777 | fd: posix.socket_t, |
| 9019 | 9778 | addr: *const posix.sockaddr, |
| 9020 | 9779 | addr_len: posix.socklen_t, |
| 9021 | 9780 | ) !void { |
| 9022 | | try current_thread.beginSyscall(); |
| 9781 | const syscall: Syscall = try .start(); |
| 9023 | 9782 | while (true) { |
| 9024 | 9783 | switch (posix.errno(posix.system.connect(fd, addr, addr_len))) { |
| 9025 | 9784 | .SUCCESS => { |
| 9026 | | current_thread.endSyscall(); |
| 9785 | syscall.finish(); |
| 9027 | 9786 | return; |
| 9028 | 9787 | }, |
| 9029 | 9788 | .INTR => { |
| 9030 | | try current_thread.checkCancel(); |
| 9789 | try syscall.checkCancel(); |
| 9031 | 9790 | continue; |
| 9032 | 9791 | }, |
| 9033 | 9792 | else => |e| { |
| 9034 | | current_thread.endSyscall(); |
| 9793 | syscall.finish(); |
| 9035 | 9794 | switch (e) { |
| 9036 | 9795 | .AFNOSUPPORT => return error.AddressFamilyUnsupported, |
| 9037 | 9796 | .AGAIN => return error.WouldBlock, |
| ... | ... | @@ -9058,24 +9817,23 @@ fn posixConnectUnix( |
| 9058 | 9817 | } |
| 9059 | 9818 | |
| 9060 | 9819 | fn posixGetSockName( |
| 9061 | | current_thread: *Thread, |
| 9062 | 9820 | socket_fd: posix.fd_t, |
| 9063 | 9821 | addr: *posix.sockaddr, |
| 9064 | 9822 | addr_len: *posix.socklen_t, |
| 9065 | 9823 | ) !void { |
| 9066 | | try current_thread.beginSyscall(); |
| 9824 | const syscall: Syscall = try .start(); |
| 9067 | 9825 | while (true) { |
| 9068 | 9826 | switch (posix.errno(posix.system.getsockname(socket_fd, addr, addr_len))) { |
| 9069 | 9827 | .SUCCESS => { |
| 9070 | | current_thread.endSyscall(); |
| 9828 | syscall.finish(); |
| 9071 | 9829 | break; |
| 9072 | 9830 | }, |
| 9073 | 9831 | .INTR => { |
| 9074 | | try current_thread.checkCancel(); |
| 9832 | try syscall.checkCancel(); |
| 9075 | 9833 | continue; |
| 9076 | 9834 | }, |
| 9077 | 9835 | else => |e| { |
| 9078 | | current_thread.endSyscall(); |
| 9836 | syscall.finish(); |
| 9079 | 9837 | switch (e) { |
| 9080 | 9838 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 9081 | 9839 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -9091,32 +9849,31 @@ fn posixGetSockName( |
| 9091 | 9849 | |
| 9092 | 9850 | fn wsaGetSockName( |
| 9093 | 9851 | t: *Threaded, |
| 9094 | | current_thread: *Thread, |
| 9095 | 9852 | handle: ws2_32.SOCKET, |
| 9096 | 9853 | addr: *ws2_32.sockaddr, |
| 9097 | 9854 | addr_len: *i32, |
| 9098 | 9855 | ) !void { |
| 9099 | | try current_thread.beginSyscall(); |
| 9856 | var syscall: Syscall = try .start(); |
| 9100 | 9857 | while (true) { |
| 9101 | 9858 | const rc = ws2_32.getsockname(handle, addr, addr_len); |
| 9102 | 9859 | if (rc != ws2_32.SOCKET_ERROR) { |
| 9103 | | current_thread.endSyscall(); |
| 9860 | syscall.finish(); |
| 9104 | 9861 | return; |
| 9105 | 9862 | } |
| 9106 | 9863 | switch (ws2_32.WSAGetLastError()) { |
| 9107 | | .EINTR => { |
| 9108 | | try current_thread.checkCancel(); |
| 9864 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 9865 | try syscall.checkCancel(); |
| 9109 | 9866 | continue; |
| 9110 | 9867 | }, |
| 9111 | 9868 | .NOTINITIALISED => { |
| 9869 | syscall.finish(); |
| 9112 | 9870 | try initializeWsa(t); |
| 9113 | | try current_thread.checkCancel(); |
| 9871 | syscall = try .start(); |
| 9114 | 9872 | continue; |
| 9115 | 9873 | }, |
| 9116 | 9874 | else => |e| { |
| 9117 | | current_thread.endSyscall(); |
| 9875 | syscall.finish(); |
| 9118 | 9876 | switch (e) { |
| 9119 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 9120 | 9877 | .ENETDOWN => return error.NetworkDown, |
| 9121 | 9878 | .EFAULT => |err| return wsaErrorBug(err), |
| 9122 | 9879 | .ENOTSOCK => |err| return wsaErrorBug(err), |
| ... | ... | @@ -9128,21 +9885,21 @@ fn wsaGetSockName( |
| 9128 | 9885 | } |
| 9129 | 9886 | } |
| 9130 | 9887 | |
| 9131 | | fn setSocketOption(current_thread: *Thread, fd: posix.fd_t, level: i32, opt_name: u32, option: u32) !void { |
| 9888 | fn setSocketOption(fd: posix.fd_t, level: i32, opt_name: u32, option: u32) !void { |
| 9132 | 9889 | const o: []const u8 = @ptrCast(&option); |
| 9133 | | try current_thread.beginSyscall(); |
| 9890 | const syscall: Syscall = try .start(); |
| 9134 | 9891 | while (true) { |
| 9135 | 9892 | switch (posix.errno(posix.system.setsockopt(fd, level, opt_name, o.ptr, @intCast(o.len)))) { |
| 9136 | 9893 | .SUCCESS => { |
| 9137 | | current_thread.endSyscall(); |
| 9894 | syscall.finish(); |
| 9138 | 9895 | return; |
| 9139 | 9896 | }, |
| 9140 | 9897 | .INTR => { |
| 9141 | | try current_thread.checkCancel(); |
| 9898 | try syscall.checkCancel(); |
| 9142 | 9899 | continue; |
| 9143 | 9900 | }, |
| 9144 | 9901 | else => |e| { |
| 9145 | | current_thread.endSyscall(); |
| 9902 | syscall.finish(); |
| 9146 | 9903 | switch (e) { |
| 9147 | 9904 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| 9148 | 9905 | .NOTSOCK => |err| return errnoBug(err), |
| ... | ... | @@ -9157,21 +9914,30 @@ fn setSocketOption(current_thread: *Thread, fd: posix.fd_t, level: i32, opt_name |
| 9157 | 9914 | |
| 9158 | 9915 | fn setSocketOptionWsa(t: *Threaded, socket: Io.net.Socket.Handle, level: i32, opt_name: u32, option: u32) !void { |
| 9159 | 9916 | const o: []const u8 = @ptrCast(&option); |
| 9917 | var syscall: Syscall = try .start(); |
| 9160 | 9918 | const rc = ws2_32.setsockopt(socket, level, @bitCast(opt_name), o.ptr, @intCast(o.len)); |
| 9161 | 9919 | while (true) { |
| 9162 | | if (rc != ws2_32.SOCKET_ERROR) return; |
| 9920 | if (rc != ws2_32.SOCKET_ERROR) return syscall.finish(); |
| 9163 | 9921 | switch (ws2_32.WSAGetLastError()) { |
| 9164 | | .EINTR => continue, |
| 9165 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 9922 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 9923 | try syscall.checkCancel(); |
| 9924 | continue; |
| 9925 | }, |
| 9166 | 9926 | .NOTINITIALISED => { |
| 9927 | syscall.finish(); |
| 9167 | 9928 | try initializeWsa(t); |
| 9929 | syscall = try .start(); |
| 9168 | 9930 | continue; |
| 9169 | 9931 | }, |
| 9170 | | .ENETDOWN => return error.NetworkDown, |
| 9171 | | .EFAULT => |err| return wsaErrorBug(err), |
| 9172 | | .ENOTSOCK => |err| return wsaErrorBug(err), |
| 9173 | | .EINVAL => |err| return wsaErrorBug(err), |
| 9174 | | else => |err| return windows.unexpectedWSAError(err), |
| 9932 | .ENETDOWN => return syscall.fail(error.NetworkDown), |
| 9933 | .EFAULT, .ENOTSOCK, .EINVAL => |err| { |
| 9934 | syscall.finish(); |
| 9935 | return wsaErrorBug(err); |
| 9936 | }, |
| 9937 | else => |err| { |
| 9938 | syscall.finish(); |
| 9939 | return windows.unexpectedWSAError(err); |
| 9940 | }, |
| 9175 | 9941 | } |
| 9176 | 9942 | } |
| 9177 | 9943 | } |
| ... | ... | @@ -9184,17 +9950,17 @@ fn netConnectIpPosix( |
| 9184 | 9950 | if (!have_networking) return error.NetworkDown; |
| 9185 | 9951 | if (options.timeout != .none) @panic("TODO implement netConnectIpPosix with timeout"); |
| 9186 | 9952 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9187 | | const current_thread = Thread.getCurrent(t); |
| 9953 | _ = t; |
| 9188 | 9954 | const family = posixAddressFamily(address); |
| 9189 | | const socket_fd = try openSocketPosix(current_thread, family, .{ |
| 9955 | const socket_fd = try openSocketPosix(family, .{ |
| 9190 | 9956 | .mode = options.mode, |
| 9191 | 9957 | .protocol = options.protocol, |
| 9192 | 9958 | }); |
| 9193 | 9959 | errdefer posix.close(socket_fd); |
| 9194 | 9960 | var storage: PosixAddress = undefined; |
| 9195 | 9961 | var addr_len = addressToPosix(address, &storage); |
| 9196 | | try posixConnect(current_thread, socket_fd, &storage.any, addr_len); |
| 9197 | | try posixGetSockName(current_thread, socket_fd, &storage.any, &addr_len); |
| 9962 | try posixConnect(socket_fd, &storage.any, addr_len); |
| 9963 | try posixGetSockName(socket_fd, &storage.any, &addr_len); |
| 9198 | 9964 | return .{ .socket = .{ |
| 9199 | 9965 | .handle = socket_fd, |
| 9200 | 9966 | .address = addressFromPosix(&storage), |
| ... | ... | @@ -9209,9 +9975,8 @@ fn netConnectIpWindows( |
| 9209 | 9975 | if (!have_networking) return error.NetworkDown; |
| 9210 | 9976 | if (options.timeout != .none) @panic("TODO implement netConnectIpWindows with timeout"); |
| 9211 | 9977 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9212 | | const current_thread = Thread.getCurrent(t); |
| 9213 | 9978 | const family = posixAddressFamily(address); |
| 9214 | | const socket_handle = try openSocketWsa(t, current_thread, family, .{ |
| 9979 | const socket_handle = try openSocketWsa(t, family, .{ |
| 9215 | 9980 | .mode = options.mode, |
| 9216 | 9981 | .protocol = options.protocol, |
| 9217 | 9982 | }); |
| ... | ... | @@ -9220,27 +9985,27 @@ fn netConnectIpWindows( |
| 9220 | 9985 | var storage: WsaAddress = undefined; |
| 9221 | 9986 | var addr_len = addressToWsa(address, &storage); |
| 9222 | 9987 | |
| 9223 | | try current_thread.beginSyscall(); |
| 9988 | var syscall: Syscall = try .start(); |
| 9224 | 9989 | while (true) { |
| 9225 | 9990 | const rc = ws2_32.connect(socket_handle, &storage.any, addr_len); |
| 9226 | 9991 | if (rc != ws2_32.SOCKET_ERROR) { |
| 9227 | | current_thread.endSyscall(); |
| 9992 | syscall.finish(); |
| 9228 | 9993 | break; |
| 9229 | 9994 | } |
| 9230 | 9995 | switch (ws2_32.WSAGetLastError()) { |
| 9231 | | .EINTR => { |
| 9232 | | try current_thread.checkCancel(); |
| 9996 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 9997 | try syscall.checkCancel(); |
| 9233 | 9998 | continue; |
| 9234 | 9999 | }, |
| 9235 | 10000 | .NOTINITIALISED => { |
| 10001 | syscall.finish(); |
| 9236 | 10002 | try initializeWsa(t); |
| 9237 | | try current_thread.checkCancel(); |
| 10003 | syscall = try .start(); |
| 9238 | 10004 | continue; |
| 9239 | 10005 | }, |
| 9240 | 10006 | else => |e| { |
| 9241 | | current_thread.endSyscall(); |
| 10007 | syscall.finish(); |
| 9242 | 10008 | switch (e) { |
| 9243 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 9244 | 10009 | .EADDRNOTAVAIL => return error.AddressUnavailable, |
| 9245 | 10010 | .ECONNREFUSED => return error.ConnectionRefused, |
| 9246 | 10011 | .ECONNRESET => return error.ConnectionResetByPeer, |
| ... | ... | @@ -9261,7 +10026,7 @@ fn netConnectIpWindows( |
| 9261 | 10026 | } |
| 9262 | 10027 | } |
| 9263 | 10028 | |
| 9264 | | try wsaGetSockName(t, current_thread, socket_handle, &storage.any, &addr_len); |
| 10029 | try wsaGetSockName(t, socket_handle, &storage.any, &addr_len); |
| 9265 | 10030 | |
| 9266 | 10031 | return .{ .socket = .{ |
| 9267 | 10032 | .handle = socket_handle, |
| ... | ... | @@ -9286,15 +10051,15 @@ fn netConnectUnixPosix( |
| 9286 | 10051 | ) net.UnixAddress.ConnectError!net.Socket.Handle { |
| 9287 | 10052 | if (!net.has_unix_sockets) return error.AddressFamilyUnsupported; |
| 9288 | 10053 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9289 | | const current_thread = Thread.getCurrent(t); |
| 9290 | | const socket_fd = openSocketPosix(current_thread, posix.AF.UNIX, .{ .mode = .stream }) catch |err| switch (err) { |
| 10054 | _ = t; |
| 10055 | const socket_fd = openSocketPosix(posix.AF.UNIX, .{ .mode = .stream }) catch |err| switch (err) { |
| 9291 | 10056 | error.OptionUnsupported => return error.Unexpected, |
| 9292 | 10057 | else => |e| return e, |
| 9293 | 10058 | }; |
| 9294 | 10059 | errdefer posix.close(socket_fd); |
| 9295 | 10060 | var storage: UnixAddress = undefined; |
| 9296 | 10061 | const addr_len = addressUnixToPosix(address, &storage); |
| 9297 | | try posixConnectUnix(current_thread, socket_fd, &storage.any, addr_len); |
| 10062 | try posixConnectUnix(socket_fd, &storage.any, addr_len); |
| 9298 | 10063 | return socket_fd; |
| 9299 | 10064 | } |
| 9300 | 10065 | |
| ... | ... | @@ -9304,34 +10069,42 @@ fn netConnectUnixWindows( |
| 9304 | 10069 | ) net.UnixAddress.ConnectError!net.Socket.Handle { |
| 9305 | 10070 | if (!net.has_unix_sockets) return error.AddressFamilyUnsupported; |
| 9306 | 10071 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9307 | | const current_thread = Thread.getCurrent(t); |
| 9308 | 10072 | |
| 9309 | | const socket_handle = try openSocketWsa(t, current_thread, posix.AF.UNIX, .{ .mode = .stream }); |
| 10073 | const socket_handle = try openSocketWsa(t, posix.AF.UNIX, .{ .mode = .stream }); |
| 9310 | 10074 | errdefer closeSocketWindows(socket_handle); |
| 9311 | 10075 | var storage: WsaAddress = undefined; |
| 9312 | 10076 | const addr_len = addressUnixToWsa(address, &storage); |
| 9313 | 10077 | |
| 10078 | var syscall: Syscall = try .start(); |
| 9314 | 10079 | while (true) { |
| 9315 | 10080 | const rc = ws2_32.connect(socket_handle, &storage.any, addr_len); |
| 9316 | 10081 | if (rc != ws2_32.SOCKET_ERROR) break; |
| 9317 | 10082 | switch (ws2_32.WSAGetLastError()) { |
| 9318 | | .EINTR => continue, |
| 9319 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 10083 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 10084 | try syscall.checkCancel(); |
| 10085 | continue; |
| 10086 | }, |
| 9320 | 10087 | .NOTINITIALISED => { |
| 10088 | syscall.finish(); |
| 9321 | 10089 | try initializeWsa(t); |
| 10090 | syscall = try .start(); |
| 9322 | 10091 | continue; |
| 9323 | 10092 | }, |
| 9324 | | |
| 9325 | | .ECONNREFUSED => return error.FileNotFound, |
| 9326 | | .EFAULT => |err| return wsaErrorBug(err), |
| 9327 | | .EINVAL => |err| return wsaErrorBug(err), |
| 9328 | | .EISCONN => |err| return wsaErrorBug(err), |
| 9329 | | .ENOTSOCK => |err| return wsaErrorBug(err), |
| 9330 | | .EWOULDBLOCK => return error.WouldBlock, |
| 9331 | | .EACCES => return error.AccessDenied, |
| 9332 | | .ENOBUFS => return error.SystemResources, |
| 9333 | | .EAFNOSUPPORT => return error.AddressFamilyUnsupported, |
| 9334 | | else => |err| return windows.unexpectedWSAError(err), |
| 10093 | else => |e| { |
| 10094 | syscall.finish(); |
| 10095 | switch (e) { |
| 10096 | .ECONNREFUSED => return error.FileNotFound, |
| 10097 | .EFAULT => |err| return wsaErrorBug(err), |
| 10098 | .EINVAL => |err| return wsaErrorBug(err), |
| 10099 | .EISCONN => |err| return wsaErrorBug(err), |
| 10100 | .ENOTSOCK => |err| return wsaErrorBug(err), |
| 10101 | .EWOULDBLOCK => return error.WouldBlock, |
| 10102 | .EACCES => return error.AccessDenied, |
| 10103 | .ENOBUFS => return error.SystemResources, |
| 10104 | .EAFNOSUPPORT => return error.AddressFamilyUnsupported, |
| 10105 | else => |err| return windows.unexpectedWSAError(err), |
| 10106 | } |
| 10107 | }, |
| 9335 | 10108 | } |
| 9336 | 10109 | } |
| 9337 | 10110 | |
| ... | ... | @@ -9354,14 +10127,14 @@ fn netBindIpPosix( |
| 9354 | 10127 | ) IpAddress.BindError!net.Socket { |
| 9355 | 10128 | if (!have_networking) return error.NetworkDown; |
| 9356 | 10129 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9357 | | const current_thread = Thread.getCurrent(t); |
| 10130 | _ = t; |
| 9358 | 10131 | const family = posixAddressFamily(address); |
| 9359 | | const socket_fd = try openSocketPosix(current_thread, family, options); |
| 10132 | const socket_fd = try openSocketPosix(family, options); |
| 9360 | 10133 | errdefer posix.close(socket_fd); |
| 9361 | 10134 | var storage: PosixAddress = undefined; |
| 9362 | 10135 | var addr_len = addressToPosix(address, &storage); |
| 9363 | | try posixBind(current_thread, socket_fd, &storage.any, addr_len); |
| 9364 | | try posixGetSockName(current_thread, socket_fd, &storage.any, &addr_len); |
| 10136 | try posixBind(socket_fd, &storage.any, addr_len); |
| 10137 | try posixGetSockName(socket_fd, &storage.any, &addr_len); |
| 9365 | 10138 | return .{ |
| 9366 | 10139 | .handle = socket_fd, |
| 9367 | 10140 | .address = addressFromPosix(&storage), |
| ... | ... | @@ -9375,9 +10148,8 @@ fn netBindIpWindows( |
| 9375 | 10148 | ) IpAddress.BindError!net.Socket { |
| 9376 | 10149 | if (!have_networking) return error.NetworkDown; |
| 9377 | 10150 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9378 | | const current_thread = Thread.getCurrent(t); |
| 9379 | 10151 | const family = posixAddressFamily(address); |
| 9380 | | const socket_handle = try openSocketWsa(t, current_thread, family, .{ |
| 10152 | const socket_handle = try openSocketWsa(t, family, .{ |
| 9381 | 10153 | .mode = options.mode, |
| 9382 | 10154 | .protocol = options.protocol, |
| 9383 | 10155 | }); |
| ... | ... | @@ -9386,27 +10158,27 @@ fn netBindIpWindows( |
| 9386 | 10158 | var storage: WsaAddress = undefined; |
| 9387 | 10159 | var addr_len = addressToWsa(address, &storage); |
| 9388 | 10160 | |
| 9389 | | try current_thread.beginSyscall(); |
| 10161 | var syscall: Syscall = try .start(); |
| 9390 | 10162 | while (true) { |
| 9391 | 10163 | const rc = ws2_32.bind(socket_handle, &storage.any, addr_len); |
| 9392 | 10164 | if (rc != ws2_32.SOCKET_ERROR) { |
| 9393 | | current_thread.endSyscall(); |
| 10165 | syscall.finish(); |
| 9394 | 10166 | break; |
| 9395 | 10167 | } |
| 9396 | 10168 | switch (ws2_32.WSAGetLastError()) { |
| 9397 | | .EINTR => { |
| 9398 | | try current_thread.checkCancel(); |
| 10169 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 10170 | try syscall.checkCancel(); |
| 9399 | 10171 | continue; |
| 9400 | 10172 | }, |
| 9401 | 10173 | .NOTINITIALISED => { |
| 10174 | syscall.finish(); |
| 9402 | 10175 | try initializeWsa(t); |
| 9403 | | try current_thread.checkCancel(); |
| 10176 | syscall = try .start(); |
| 9404 | 10177 | continue; |
| 9405 | 10178 | }, |
| 9406 | 10179 | else => |e| { |
| 9407 | | current_thread.endSyscall(); |
| 10180 | syscall.finish(); |
| 9408 | 10181 | switch (e) { |
| 9409 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 9410 | 10182 | .EADDRINUSE => return error.AddressInUse, |
| 9411 | 10183 | .EADDRNOTAVAIL => return error.AddressUnavailable, |
| 9412 | 10184 | .ENOTSOCK => |err| return wsaErrorBug(err), |
| ... | ... | @@ -9420,7 +10192,7 @@ fn netBindIpWindows( |
| 9420 | 10192 | } |
| 9421 | 10193 | } |
| 9422 | 10194 | |
| 9423 | | try wsaGetSockName(t, current_thread, socket_handle, &storage.any, &addr_len); |
| 10195 | try wsaGetSockName(t, socket_handle, &storage.any, &addr_len); |
| 9424 | 10196 | |
| 9425 | 10197 | return .{ |
| 9426 | 10198 | .handle = socket_handle, |
| ... | ... | @@ -9440,7 +10212,6 @@ fn netBindIpUnavailable( |
| 9440 | 10212 | } |
| 9441 | 10213 | |
| 9442 | 10214 | fn openSocketPosix( |
| 9443 | | current_thread: *Thread, |
| 9444 | 10215 | family: posix.sa_family_t, |
| 9445 | 10216 | options: IpAddress.BindOptions, |
| 9446 | 10217 | ) error{ |
| ... | ... | @@ -9457,7 +10228,7 @@ fn openSocketPosix( |
| 9457 | 10228 | }!posix.socket_t { |
| 9458 | 10229 | const mode = posixSocketMode(options.mode); |
| 9459 | 10230 | const protocol = posixProtocol(options.protocol); |
| 9460 | | try current_thread.beginSyscall(); |
| 10231 | const syscall: Syscall = try .start(); |
| 9461 | 10232 | const socket_fd = while (true) { |
| 9462 | 10233 | const flags: u32 = mode | if (socket_flags_unsupported) 0 else posix.SOCK.CLOEXEC; |
| 9463 | 10234 | const socket_rc = posix.system.socket(family, flags, protocol); |
| ... | ... | @@ -9466,25 +10237,25 @@ fn openSocketPosix( |
| 9466 | 10237 | const fd: posix.fd_t = @intCast(socket_rc); |
| 9467 | 10238 | errdefer posix.close(fd); |
| 9468 | 10239 | if (socket_flags_unsupported) while (true) { |
| 9469 | | try current_thread.checkCancel(); |
| 10240 | try syscall.checkCancel(); |
| 9470 | 10241 | switch (posix.errno(posix.system.fcntl(fd, posix.F.SETFD, @as(usize, posix.FD_CLOEXEC)))) { |
| 9471 | 10242 | .SUCCESS => break, |
| 9472 | 10243 | .INTR => continue, |
| 9473 | 10244 | else => |err| { |
| 9474 | | current_thread.endSyscall(); |
| 10245 | syscall.finish(); |
| 9475 | 10246 | return posix.unexpectedErrno(err); |
| 9476 | 10247 | }, |
| 9477 | 10248 | } |
| 9478 | 10249 | }; |
| 9479 | | current_thread.endSyscall(); |
| 10250 | syscall.finish(); |
| 9480 | 10251 | break fd; |
| 9481 | 10252 | }, |
| 9482 | 10253 | .INTR => { |
| 9483 | | try current_thread.checkCancel(); |
| 10254 | try syscall.checkCancel(); |
| 9484 | 10255 | continue; |
| 9485 | 10256 | }, |
| 9486 | 10257 | else => |e| { |
| 9487 | | current_thread.endSyscall(); |
| 10258 | syscall.finish(); |
| 9488 | 10259 | switch (e) { |
| 9489 | 10260 | .AFNOSUPPORT => return error.AddressFamilyUnsupported, |
| 9490 | 10261 | .INVAL => return error.ProtocolUnsupportedBySystem, |
| ... | ... | @@ -9503,7 +10274,7 @@ fn openSocketPosix( |
| 9503 | 10274 | |
| 9504 | 10275 | if (options.ip6_only) { |
| 9505 | 10276 | if (posix.IPV6 == void) return error.OptionUnsupported; |
| 9506 | | try setSocketOption(current_thread, socket_fd, posix.IPPROTO.IPV6, posix.IPV6.V6ONLY, 0); |
| 10277 | try setSocketOption(socket_fd, posix.IPPROTO.IPV6, posix.IPV6.V6ONLY, 0); |
| 9507 | 10278 | } |
| 9508 | 10279 | |
| 9509 | 10280 | return socket_fd; |
| ... | ... | @@ -9511,34 +10282,33 @@ fn openSocketPosix( |
| 9511 | 10282 | |
| 9512 | 10283 | fn openSocketWsa( |
| 9513 | 10284 | t: *Threaded, |
| 9514 | | current_thread: *Thread, |
| 9515 | 10285 | family: posix.sa_family_t, |
| 9516 | 10286 | options: IpAddress.BindOptions, |
| 9517 | 10287 | ) !ws2_32.SOCKET { |
| 9518 | 10288 | const mode = posixSocketMode(options.mode); |
| 9519 | 10289 | const protocol = posixProtocol(options.protocol); |
| 9520 | 10290 | const flags: u32 = ws2_32.WSA_FLAG_OVERLAPPED | ws2_32.WSA_FLAG_NO_HANDLE_INHERIT; |
| 9521 | | try current_thread.beginSyscall(); |
| 10291 | var syscall: Syscall = try .start(); |
| 9522 | 10292 | while (true) { |
| 9523 | 10293 | const rc = ws2_32.WSASocketW(family, @bitCast(mode), @bitCast(protocol), null, 0, flags); |
| 9524 | 10294 | if (rc != ws2_32.INVALID_SOCKET) { |
| 9525 | | current_thread.endSyscall(); |
| 10295 | syscall.finish(); |
| 9526 | 10296 | return rc; |
| 9527 | 10297 | } |
| 9528 | 10298 | switch (ws2_32.WSAGetLastError()) { |
| 9529 | | .EINTR => { |
| 9530 | | try current_thread.checkCancel(); |
| 10299 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 10300 | try syscall.checkCancel(); |
| 9531 | 10301 | continue; |
| 9532 | 10302 | }, |
| 9533 | 10303 | .NOTINITIALISED => { |
| 10304 | syscall.finish(); |
| 9534 | 10305 | try initializeWsa(t); |
| 9535 | | try current_thread.checkCancel(); |
| 10306 | syscall = try .start(); |
| 9536 | 10307 | continue; |
| 9537 | 10308 | }, |
| 9538 | 10309 | else => |e| { |
| 9539 | | current_thread.endSyscall(); |
| 10310 | syscall.finish(); |
| 9540 | 10311 | switch (e) { |
| 9541 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 9542 | 10312 | .EAFNOSUPPORT => return error.AddressFamilyUnsupported, |
| 9543 | 10313 | .EMFILE => return error.ProcessFdQuotaExceeded, |
| 9544 | 10314 | .ENOBUFS => return error.SystemResources, |
| ... | ... | @@ -9553,10 +10323,10 @@ fn openSocketWsa( |
| 9553 | 10323 | fn netAcceptPosix(userdata: ?*anyopaque, listen_fd: net.Socket.Handle) net.Server.AcceptError!net.Stream { |
| 9554 | 10324 | if (!have_networking) return error.NetworkDown; |
| 9555 | 10325 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9556 | | const current_thread = Thread.getCurrent(t); |
| 10326 | _ = t; |
| 9557 | 10327 | var storage: PosixAddress = undefined; |
| 9558 | 10328 | var addr_len: posix.socklen_t = @sizeOf(PosixAddress); |
| 9559 | | try current_thread.beginSyscall(); |
| 10329 | const syscall: Syscall = try .start(); |
| 9560 | 10330 | const fd = while (true) { |
| 9561 | 10331 | const rc = if (have_accept4) |
| 9562 | 10332 | posix.system.accept4(listen_fd, &storage.any, &addr_len, posix.SOCK.CLOEXEC) |
| ... | ... | @@ -9567,25 +10337,25 @@ fn netAcceptPosix(userdata: ?*anyopaque, listen_fd: net.Socket.Handle) net.Serve |
| 9567 | 10337 | const fd: posix.fd_t = @intCast(rc); |
| 9568 | 10338 | errdefer posix.close(fd); |
| 9569 | 10339 | if (!have_accept4) while (true) { |
| 9570 | | try current_thread.checkCancel(); |
| 10340 | try syscall.checkCancel(); |
| 9571 | 10341 | switch (posix.errno(posix.system.fcntl(fd, posix.F.SETFD, @as(usize, posix.FD_CLOEXEC)))) { |
| 9572 | 10342 | .SUCCESS => break, |
| 9573 | 10343 | .INTR => continue, |
| 9574 | 10344 | else => |err| { |
| 9575 | | current_thread.endSyscall(); |
| 10345 | syscall.finish(); |
| 9576 | 10346 | return posix.unexpectedErrno(err); |
| 9577 | 10347 | }, |
| 9578 | 10348 | } |
| 9579 | 10349 | }; |
| 9580 | | current_thread.endSyscall(); |
| 10350 | syscall.finish(); |
| 9581 | 10351 | break fd; |
| 9582 | 10352 | }, |
| 9583 | 10353 | .INTR => { |
| 9584 | | try current_thread.checkCancel(); |
| 10354 | try syscall.checkCancel(); |
| 9585 | 10355 | continue; |
| 9586 | 10356 | }, |
| 9587 | 10357 | else => |e| { |
| 9588 | | current_thread.endSyscall(); |
| 10358 | syscall.finish(); |
| 9589 | 10359 | switch (e) { |
| 9590 | 10360 | .AGAIN => |err| return errnoBug(err), |
| 9591 | 10361 | .BADF => |err| return errnoBug(err), // File descriptor used after closed. |
| ... | ... | @@ -9614,33 +10384,32 @@ fn netAcceptPosix(userdata: ?*anyopaque, listen_fd: net.Socket.Handle) net.Serve |
| 9614 | 10384 | fn netAcceptWindows(userdata: ?*anyopaque, listen_handle: net.Socket.Handle) net.Server.AcceptError!net.Stream { |
| 9615 | 10385 | if (!have_networking) return error.NetworkDown; |
| 9616 | 10386 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9617 | | const current_thread = Thread.getCurrent(t); |
| 9618 | 10387 | var storage: WsaAddress = undefined; |
| 9619 | 10388 | var addr_len: i32 = @sizeOf(WsaAddress); |
| 9620 | | try current_thread.beginSyscall(); |
| 10389 | var syscall: Syscall = try .start(); |
| 9621 | 10390 | while (true) { |
| 9622 | 10391 | const rc = ws2_32.accept(listen_handle, &storage.any, &addr_len); |
| 9623 | 10392 | if (rc != ws2_32.INVALID_SOCKET) { |
| 9624 | | current_thread.endSyscall(); |
| 10393 | syscall.finish(); |
| 9625 | 10394 | return .{ .socket = .{ |
| 9626 | 10395 | .handle = rc, |
| 9627 | 10396 | .address = addressFromWsa(&storage), |
| 9628 | 10397 | } }; |
| 9629 | 10398 | } |
| 9630 | 10399 | switch (ws2_32.WSAGetLastError()) { |
| 9631 | | .EINTR => { |
| 9632 | | try current_thread.checkCancel(); |
| 10400 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 10401 | try syscall.checkCancel(); |
| 9633 | 10402 | continue; |
| 9634 | 10403 | }, |
| 9635 | 10404 | .NOTINITIALISED => { |
| 10405 | syscall.finish(); |
| 9636 | 10406 | try initializeWsa(t); |
| 9637 | | try current_thread.checkCancel(); |
| 10407 | syscall = try .start(); |
| 9638 | 10408 | continue; |
| 9639 | 10409 | }, |
| 9640 | 10410 | else => |e| { |
| 9641 | | current_thread.endSyscall(); |
| 10411 | syscall.finish(); |
| 9642 | 10412 | switch (e) { |
| 9643 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 9644 | 10413 | .ECONNRESET => return error.ConnectionAborted, |
| 9645 | 10414 | .EFAULT => |err| return wsaErrorBug(err), |
| 9646 | 10415 | .ENOTSOCK => |err| return wsaErrorBug(err), |
| ... | ... | @@ -9665,7 +10434,7 @@ fn netAcceptUnavailable(userdata: ?*anyopaque, listen_handle: net.Socket.Handle) |
| 9665 | 10434 | fn netReadPosix(userdata: ?*anyopaque, fd: net.Socket.Handle, data: [][]u8) net.Stream.Reader.Error!usize { |
| 9666 | 10435 | if (!have_networking) return error.NetworkDown; |
| 9667 | 10436 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9668 | | const current_thread = Thread.getCurrent(t); |
| 10437 | _ = t; |
| 9669 | 10438 | |
| 9670 | 10439 | var iovecs_buffer: [max_iovecs_len]posix.iovec = undefined; |
| 9671 | 10440 | var i: usize = 0; |
| ... | ... | @@ -9680,20 +10449,20 @@ fn netReadPosix(userdata: ?*anyopaque, fd: net.Socket.Handle, data: [][]u8) net. |
| 9680 | 10449 | assert(dest[0].len > 0); |
| 9681 | 10450 | |
| 9682 | 10451 | if (native_os == .wasi and !builtin.link_libc) { |
| 9683 | | try current_thread.beginSyscall(); |
| 10452 | const syscall: Syscall = try .start(); |
| 9684 | 10453 | while (true) { |
| 9685 | 10454 | var n: usize = undefined; |
| 9686 | 10455 | switch (std.os.wasi.fd_read(fd, dest.ptr, dest.len, &n)) { |
| 9687 | 10456 | .SUCCESS => { |
| 9688 | | current_thread.endSyscall(); |
| 10457 | syscall.finish(); |
| 9689 | 10458 | return n; |
| 9690 | 10459 | }, |
| 9691 | 10460 | .INTR => { |
| 9692 | | try current_thread.checkCancel(); |
| 10461 | try syscall.checkCancel(); |
| 9693 | 10462 | continue; |
| 9694 | 10463 | }, |
| 9695 | 10464 | else => |e| { |
| 9696 | | current_thread.endSyscall(); |
| 10465 | syscall.finish(); |
| 9697 | 10466 | switch (e) { |
| 9698 | 10467 | .INVAL => |err| return errnoBug(err), |
| 9699 | 10468 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -9712,20 +10481,20 @@ fn netReadPosix(userdata: ?*anyopaque, fd: net.Socket.Handle, data: [][]u8) net. |
| 9712 | 10481 | } |
| 9713 | 10482 | } |
| 9714 | 10483 | |
| 9715 | | try current_thread.beginSyscall(); |
| 10484 | const syscall: Syscall = try .start(); |
| 9716 | 10485 | while (true) { |
| 9717 | 10486 | const rc = posix.system.readv(fd, dest.ptr, @intCast(dest.len)); |
| 9718 | 10487 | switch (posix.errno(rc)) { |
| 9719 | 10488 | .SUCCESS => { |
| 9720 | | current_thread.endSyscall(); |
| 10489 | syscall.finish(); |
| 9721 | 10490 | return @intCast(rc); |
| 9722 | 10491 | }, |
| 9723 | 10492 | .INTR => { |
| 9724 | | try current_thread.checkCancel(); |
| 10493 | try syscall.checkCancel(); |
| 9725 | 10494 | continue; |
| 9726 | 10495 | }, |
| 9727 | 10496 | else => |e| { |
| 9728 | | current_thread.endSyscall(); |
| 10497 | syscall.finish(); |
| 9729 | 10498 | switch (e) { |
| 9730 | 10499 | .INVAL => |err| return errnoBug(err), |
| 9731 | 10500 | .FAULT => |err| return errnoBug(err), |
| ... | ... | @@ -9748,7 +10517,6 @@ fn netReadPosix(userdata: ?*anyopaque, fd: net.Socket.Handle, data: [][]u8) net. |
| 9748 | 10517 | fn netReadWindows(userdata: ?*anyopaque, handle: net.Socket.Handle, data: [][]u8) net.Stream.Reader.Error!usize { |
| 9749 | 10518 | if (!have_networking) return error.NetworkDown; |
| 9750 | 10519 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9751 | | const current_thread = Thread.getCurrent(t); |
| 9752 | 10520 | |
| 9753 | 10521 | const bufs = b: { |
| 9754 | 10522 | var iovec_buffer: [max_iovecs_len]ws2_32.WSABUF = undefined; |
| ... | ... | @@ -9775,48 +10543,41 @@ fn netReadWindows(userdata: ?*anyopaque, handle: net.Socket.Handle, data: [][]u8 |
| 9775 | 10543 | break :b bufs; |
| 9776 | 10544 | }; |
| 9777 | 10545 | |
| 10546 | var syscall: Syscall = try .start(); |
| 9778 | 10547 | while (true) { |
| 9779 | | try current_thread.checkCancel(); |
| 9780 | | |
| 9781 | 10548 | var flags: u32 = 0; |
| 9782 | | var overlapped: windows.OVERLAPPED = std.mem.zeroes(windows.OVERLAPPED); |
| 9783 | 10549 | var n: u32 = undefined; |
| 9784 | | const rc = ws2_32.WSARecv(handle, bufs.ptr, @intCast(bufs.len), &n, &flags, &overlapped, null); |
| 9785 | | if (rc != ws2_32.SOCKET_ERROR) return n; |
| 9786 | | const wsa_error: ws2_32.WinsockError = switch (ws2_32.WSAGetLastError()) { |
| 9787 | | .IO_PENDING => e: { |
| 9788 | | var result_flags: u32 = undefined; |
| 9789 | | const overlapped_rc = ws2_32.WSAGetOverlappedResult( |
| 9790 | | handle, |
| 9791 | | &overlapped, |
| 9792 | | &n, |
| 9793 | | windows.TRUE, |
| 9794 | | &result_flags, |
| 9795 | | ); |
| 9796 | | if (overlapped_rc == windows.FALSE) { |
| 9797 | | break :e ws2_32.WSAGetLastError(); |
| 9798 | | } else { |
| 9799 | | return n; |
| 9800 | | } |
| 10550 | const rc = ws2_32.WSARecv(handle, bufs.ptr, @intCast(bufs.len), &n, &flags, null, null); |
| 10551 | if (rc != ws2_32.SOCKET_ERROR) { |
| 10552 | syscall.finish(); |
| 10553 | return n; |
| 10554 | } |
| 10555 | switch (ws2_32.WSAGetLastError()) { |
| 10556 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 10557 | try syscall.checkCancel(); |
| 10558 | continue; |
| 9801 | 10559 | }, |
| 9802 | | else => |err| err, |
| 9803 | | }; |
| 9804 | | switch (wsa_error) { |
| 9805 | | .EINTR => continue, |
| 9806 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 9807 | 10560 | .NOTINITIALISED => { |
| 10561 | syscall.finish(); |
| 9808 | 10562 | try initializeWsa(t); |
| 10563 | syscall = try .start(); |
| 9809 | 10564 | continue; |
| 9810 | 10565 | }, |
| 9811 | 10566 | |
| 9812 | | .ECONNRESET => return error.ConnectionResetByPeer, |
| 10567 | .ECONNRESET => return syscall.fail(error.ConnectionResetByPeer), |
| 10568 | .ENETDOWN => return syscall.fail(error.NetworkDown), |
| 10569 | .ENETRESET => return syscall.fail(error.ConnectionResetByPeer), |
| 10570 | .ENOTCONN => return syscall.fail(error.SocketUnconnected), |
| 9813 | 10571 | .EFAULT => unreachable, // a pointer is not completely contained in user address space. |
| 9814 | | .EINVAL => |err| return wsaErrorBug(err), |
| 9815 | | .EMSGSIZE => |err| return wsaErrorBug(err), |
| 9816 | | .ENETDOWN => return error.NetworkDown, |
| 9817 | | .ENETRESET => return error.ConnectionResetByPeer, |
| 9818 | | .ENOTCONN => return error.SocketUnconnected, |
| 9819 | | else => |err| return windows.unexpectedWSAError(err), |
| 10572 | |
| 10573 | else => |err| { |
| 10574 | syscall.finish(); |
| 10575 | switch (err) { |
| 10576 | .EINVAL => return wsaErrorBug(err), |
| 10577 | .EMSGSIZE => return wsaErrorBug(err), |
| 10578 | else => return windows.unexpectedWSAError(err), |
| 10579 | } |
| 10580 | }, |
| 9820 | 10581 | } |
| 9821 | 10582 | } |
| 9822 | 10583 | } |
| ... | ... | @@ -9836,7 +10597,6 @@ fn netSendPosix( |
| 9836 | 10597 | ) struct { ?net.Socket.SendError, usize } { |
| 9837 | 10598 | if (!have_networking) return .{ error.NetworkDown, 0 }; |
| 9838 | 10599 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 9839 | | const current_thread = Thread.getCurrent(t); |
| 9840 | 10600 | |
| 9841 | 10601 | const posix_flags: u32 = |
| 9842 | 10602 | @as(u32, if (@hasDecl(posix.MSG, "CONFIRM") and flags.confirm) posix.MSG.CONFIRM else 0) | |
| ... | ... | @@ -9849,10 +10609,10 @@ fn netSendPosix( |
| 9849 | 10609 | var i: usize = 0; |
| 9850 | 10610 | while (messages.len - i != 0) { |
| 9851 | 10611 | if (have_sendmmsg) { |
| 9852 | | i += netSendMany(current_thread, handle, messages[i..], posix_flags) catch |err| return .{ err, i }; |
| 10612 | i += netSendMany(handle, messages[i..], posix_flags) catch |err| return .{ err, i }; |
| 9853 | 10613 | continue; |
| 9854 | 10614 | } |
| 9855 | | netSendOne(t, current_thread, handle, &messages[i], posix_flags) catch |err| return .{ err, i }; |
| 10615 | netSendOne(t, handle, &messages[i], posix_flags) catch |err| return .{ err, i }; |
| 9856 | 10616 | i += 1; |
| 9857 | 10617 | } |
| 9858 | 10618 | return .{ null, i }; |
| ... | ... | @@ -9888,7 +10648,6 @@ fn netSendUnavailable( |
| 9888 | 10648 | |
| 9889 | 10649 | fn netSendOne( |
| 9890 | 10650 | t: *Threaded, |
| 9891 | | current_thread: *Thread, |
| 9892 | 10651 | handle: net.Socket.Handle, |
| 9893 | 10652 | message: *net.OutgoingMessage, |
| 9894 | 10653 | flags: u32, |
| ... | ... | @@ -9905,29 +10664,29 @@ fn netSendOne( |
| 9905 | 10664 | .controllen = @intCast(message.control.len), |
| 9906 | 10665 | .flags = 0, |
| 9907 | 10666 | }; |
| 9908 | | try current_thread.beginSyscall(); |
| 10667 | var syscall: Syscall = try .start(); |
| 9909 | 10668 | while (true) { |
| 9910 | 10669 | const rc = posix.system.sendmsg(handle, &msg, flags); |
| 9911 | 10670 | if (is_windows) { |
| 9912 | 10671 | if (rc != ws2_32.SOCKET_ERROR) { |
| 9913 | | current_thread.endSyscall(); |
| 10672 | syscall.finish(); |
| 9914 | 10673 | message.data_len = @intCast(rc); |
| 9915 | 10674 | return; |
| 9916 | 10675 | } |
| 9917 | 10676 | switch (ws2_32.WSAGetLastError()) { |
| 9918 | | .EINTR => { |
| 9919 | | try current_thread.checkCancel(); |
| 10677 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 10678 | try syscall.checkCancel(); |
| 9920 | 10679 | continue; |
| 9921 | 10680 | }, |
| 9922 | 10681 | .NOTINITIALISED => { |
| 10682 | syscall.finish(); |
| 9923 | 10683 | try initializeWsa(t); |
| 9924 | | try current_thread.checkCancel(); |
| 10684 | syscall = try .start(); |
| 9925 | 10685 | continue; |
| 9926 | 10686 | }, |
| 9927 | 10687 | else => |e| { |
| 9928 | | current_thread.endSyscall(); |
| 10688 | syscall.finish(); |
| 9929 | 10689 | switch (e) { |
| 9930 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 9931 | 10690 | .EACCES => return error.AccessDenied, |
| 9932 | 10691 | .EADDRNOTAVAIL => return error.AddressUnavailable, |
| 9933 | 10692 | .ECONNRESET => return error.ConnectionResetByPeer, |
| ... | ... | @@ -9951,16 +10710,16 @@ fn netSendOne( |
| 9951 | 10710 | } |
| 9952 | 10711 | switch (posix.errno(rc)) { |
| 9953 | 10712 | .SUCCESS => { |
| 9954 | | current_thread.endSyscall(); |
| 10713 | syscall.finish(); |
| 9955 | 10714 | message.data_len = @intCast(rc); |
| 9956 | 10715 | return; |
| 9957 | 10716 | }, |
| 9958 | 10717 | .INTR => { |
| 9959 | | try current_thread.checkCancel(); |
| 10718 | try syscall.checkCancel(); |
| 9960 | 10719 | continue; |
| 9961 | 10720 | }, |
| 9962 | 10721 | else => |e| { |
| 9963 | | current_thread.endSyscall(); |
| 10722 | syscall.finish(); |
| 9964 | 10723 | switch (e) { |
| 9965 | 10724 | .ACCES => return error.AccessDenied, |
| 9966 | 10725 | .ALREADY => return error.FastOpenAlreadyInProgress, |
| ... | ... | @@ -9989,7 +10748,6 @@ fn netSendOne( |
| 9989 | 10748 | } |
| 9990 | 10749 | |
| 9991 | 10750 | fn netSendMany( |
| 9992 | | current_thread: *Thread, |
| 9993 | 10751 | handle: net.Socket.Handle, |
| 9994 | 10752 | messages: []net.OutgoingMessage, |
| 9995 | 10753 | flags: u32, |
| ... | ... | @@ -10019,12 +10777,12 @@ fn netSendMany( |
| 10019 | 10777 | }; |
| 10020 | 10778 | } |
| 10021 | 10779 | |
| 10022 | | try current_thread.beginSyscall(); |
| 10780 | const syscall: Syscall = try .start(); |
| 10023 | 10781 | while (true) { |
| 10024 | 10782 | const rc = posix.system.sendmmsg(handle, clamped_msgs.ptr, @intCast(clamped_msgs.len), flags); |
| 10025 | 10783 | switch (posix.errno(rc)) { |
| 10026 | 10784 | .SUCCESS => { |
| 10027 | | current_thread.endSyscall(); |
| 10785 | syscall.finish(); |
| 10028 | 10786 | const n: usize = @intCast(rc); |
| 10029 | 10787 | for (clamped_messages[0..n], clamped_msgs[0..n]) |*message, *msg| { |
| 10030 | 10788 | message.data_len = msg.len; |
| ... | ... | @@ -10032,11 +10790,11 @@ fn netSendMany( |
| 10032 | 10790 | return n; |
| 10033 | 10791 | }, |
| 10034 | 10792 | .INTR => { |
| 10035 | | try current_thread.checkCancel(); |
| 10793 | try syscall.checkCancel(); |
| 10036 | 10794 | continue; |
| 10037 | 10795 | }, |
| 10038 | 10796 | else => |e| { |
| 10039 | | current_thread.endSyscall(); |
| 10797 | syscall.finish(); |
| 10040 | 10798 | switch (e) { |
| 10041 | 10799 | .AGAIN => |err| return errnoBug(err), |
| 10042 | 10800 | .ALREADY => return error.FastOpenAlreadyInProgress, |
| ... | ... | @@ -10074,7 +10832,6 @@ fn netReceivePosix( |
| 10074 | 10832 | ) struct { ?net.Socket.ReceiveTimeoutError, usize } { |
| 10075 | 10833 | if (!have_networking) return .{ error.NetworkDown, 0 }; |
| 10076 | 10834 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 10077 | | const current_thread = Thread.getCurrent(t); |
| 10078 | 10835 | const t_io = io(t); |
| 10079 | 10836 | |
| 10080 | 10837 | // recvmmsg is useless, here's why: |
| ... | ... | @@ -10120,9 +10877,12 @@ fn netReceivePosix( |
| 10120 | 10877 | .flags = undefined, |
| 10121 | 10878 | }; |
| 10122 | 10879 | |
| 10123 | | current_thread.beginSyscall() catch |err| return .{ err, message_i }; |
| 10124 | | const recv_rc = posix.system.recvmsg(handle, &msg, posix_flags); |
| 10125 | | current_thread.endSyscall(); |
| 10880 | const recv_rc = rc: { |
| 10881 | const syscall = Syscall.start() catch |err| return .{ err, message_i }; |
| 10882 | const rc = posix.system.recvmsg(handle, &msg, posix_flags); |
| 10883 | syscall.finish(); |
| 10884 | break :rc rc; |
| 10885 | }; |
| 10126 | 10886 | switch (posix.errno(recv_rc)) { |
| 10127 | 10887 | .SUCCESS => { |
| 10128 | 10888 | const data = remaining_data_buffer[0..@intCast(recv_rc)]; |
| ... | ... | @@ -10152,9 +10912,9 @@ fn netReceivePosix( |
| 10152 | 10912 | break :t @intCast(@min(max_poll_ms, duration.raw.toMilliseconds())); |
| 10153 | 10913 | } else max_poll_ms; |
| 10154 | 10914 | |
| 10155 | | current_thread.beginSyscall() catch |err| return .{ err, message_i }; |
| 10915 | const syscall = Syscall.start() catch |err| return .{ err, message_i }; |
| 10156 | 10916 | const poll_rc = posix.system.poll(&poll_fds, poll_fds.len, timeout_ms); |
| 10157 | | current_thread.endSyscall(); |
| 10917 | syscall.finish(); |
| 10158 | 10918 | |
| 10159 | 10919 | switch (posix.errno(poll_rc)) { |
| 10160 | 10920 | .SUCCESS => { |
| ... | ... | @@ -10240,7 +11000,7 @@ fn netWritePosix( |
| 10240 | 11000 | ) net.Stream.Writer.Error!usize { |
| 10241 | 11001 | if (!have_networking) return error.NetworkDown; |
| 10242 | 11002 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 10243 | | const current_thread = Thread.getCurrent(t); |
| 11003 | _ = t; |
| 10244 | 11004 | |
| 10245 | 11005 | var iovecs: [max_iovecs_len]posix.iovec_const = undefined; |
| 10246 | 11006 | var msg: posix.msghdr_const = .{ |
| ... | ... | @@ -10282,20 +11042,20 @@ fn netWritePosix( |
| 10282 | 11042 | }; |
| 10283 | 11043 | const flags = posix.MSG.NOSIGNAL; |
| 10284 | 11044 | |
| 10285 | | try current_thread.beginSyscall(); |
| 11045 | const syscall: Syscall = try .start(); |
| 10286 | 11046 | while (true) { |
| 10287 | 11047 | const rc = posix.system.sendmsg(fd, &msg, flags); |
| 10288 | 11048 | switch (posix.errno(rc)) { |
| 10289 | 11049 | .SUCCESS => { |
| 10290 | | current_thread.endSyscall(); |
| 11050 | syscall.finish(); |
| 10291 | 11051 | return @intCast(rc); |
| 10292 | 11052 | }, |
| 10293 | 11053 | .INTR => { |
| 10294 | | try current_thread.checkCancel(); |
| 11054 | try syscall.checkCancel(); |
| 10295 | 11055 | continue; |
| 10296 | 11056 | }, |
| 10297 | 11057 | else => |e| { |
| 10298 | | current_thread.endSyscall(); |
| 11058 | syscall.finish(); |
| 10299 | 11059 | switch (e) { |
| 10300 | 11060 | .ACCES => |err| return errnoBug(err), |
| 10301 | 11061 | .AGAIN => |err| return errnoBug(err), |
| ... | ... | @@ -10332,7 +11092,6 @@ fn netWriteWindows( |
| 10332 | 11092 | splat: usize, |
| 10333 | 11093 | ) net.Stream.Writer.Error!usize { |
| 10334 | 11094 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 10335 | | const current_thread = Thread.getCurrent(t); |
| 10336 | 11095 | comptime assert(native_os == .windows); |
| 10337 | 11096 | |
| 10338 | 11097 | var iovecs: [max_iovecs_len]ws2_32.WSABUF = undefined; |
| ... | ... | @@ -10365,49 +11124,44 @@ fn netWriteWindows( |
| 10365 | 11124 | }, |
| 10366 | 11125 | }; |
| 10367 | 11126 | |
| 11127 | var syscall: Syscall = try .start(); |
| 10368 | 11128 | while (true) { |
| 10369 | | try current_thread.checkCancel(); |
| 10370 | | |
| 10371 | 11129 | var n: u32 = undefined; |
| 10372 | | var overlapped: windows.OVERLAPPED = std.mem.zeroes(windows.OVERLAPPED); |
| 10373 | | const rc = ws2_32.WSASend(handle, &iovecs, len, &n, 0, &overlapped, null); |
| 10374 | | if (rc != ws2_32.SOCKET_ERROR) return n; |
| 10375 | | const wsa_error: ws2_32.WinsockError = switch (ws2_32.WSAGetLastError()) { |
| 10376 | | .IO_PENDING => e: { |
| 10377 | | var result_flags: u32 = undefined; |
| 10378 | | const overlapped_rc = ws2_32.WSAGetOverlappedResult( |
| 10379 | | handle, |
| 10380 | | &overlapped, |
| 10381 | | &n, |
| 10382 | | windows.TRUE, |
| 10383 | | &result_flags, |
| 10384 | | ); |
| 10385 | | if (overlapped_rc == windows.FALSE) { |
| 10386 | | break :e ws2_32.WSAGetLastError(); |
| 10387 | | } else { |
| 10388 | | return n; |
| 10389 | | } |
| 11130 | const rc = ws2_32.WSASend(handle, &iovecs, len, &n, 0, null, null); |
| 11131 | if (rc != ws2_32.SOCKET_ERROR) { |
| 11132 | syscall.finish(); |
| 11133 | return n; |
| 11134 | } |
| 11135 | switch (ws2_32.WSAGetLastError()) { |
| 11136 | .IO_PENDING => unreachable, // not overlapped |
| 11137 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 11138 | try syscall.checkCancel(); |
| 11139 | continue; |
| 10390 | 11140 | }, |
| 10391 | | else => |err| err, |
| 10392 | | }; |
| 10393 | | switch (wsa_error) { |
| 10394 | | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => continue, |
| 10395 | 11141 | .NOTINITIALISED => { |
| 11142 | syscall.finish(); |
| 10396 | 11143 | try initializeWsa(t); |
| 11144 | syscall = try .start(); |
| 10397 | 11145 | continue; |
| 10398 | 11146 | }, |
| 10399 | 11147 | |
| 10400 | | .ECONNABORTED => return error.ConnectionResetByPeer, |
| 10401 | | .ECONNRESET => return error.ConnectionResetByPeer, |
| 10402 | | .EINVAL => return error.SocketUnconnected, |
| 10403 | | .ENETDOWN => return error.NetworkDown, |
| 10404 | | .ENETRESET => return error.ConnectionResetByPeer, |
| 10405 | | .ENOBUFS => return error.SystemResources, |
| 10406 | | .ENOTCONN => return error.SocketUnconnected, |
| 10407 | | .ENOTSOCK => |err| return wsaErrorBug(err), |
| 10408 | | .EOPNOTSUPP => |err| return wsaErrorBug(err), |
| 10409 | | .ESHUTDOWN => |err| return wsaErrorBug(err), |
| 10410 | | else => |err| return windows.unexpectedWSAError(err), |
| 11148 | .ECONNABORTED => return syscall.fail(error.ConnectionResetByPeer), |
| 11149 | .ECONNRESET => return syscall.fail(error.ConnectionResetByPeer), |
| 11150 | .EINVAL => return syscall.fail(error.SocketUnconnected), |
| 11151 | .ENETDOWN => return syscall.fail(error.NetworkDown), |
| 11152 | .ENETRESET => return syscall.fail(error.ConnectionResetByPeer), |
| 11153 | .ENOBUFS => return syscall.fail(error.SystemResources), |
| 11154 | .ENOTCONN => return syscall.fail(error.SocketUnconnected), |
| 11155 | |
| 11156 | else => |err| { |
| 11157 | syscall.finish(); |
| 11158 | switch (err) { |
| 11159 | .ENOTSOCK => return wsaErrorBug(err), |
| 11160 | .EOPNOTSUPP => return wsaErrorBug(err), |
| 11161 | .ESHUTDOWN => return wsaErrorBug(err), |
| 11162 | else => return windows.unexpectedWSAError(err), |
| 11163 | } |
| 11164 | }, |
| 10411 | 11165 | } |
| 10412 | 11166 | } |
| 10413 | 11167 | } |
| ... | ... | @@ -10476,7 +11230,7 @@ fn netCloseUnavailable(userdata: ?*anyopaque, handles: []const net.Socket.Handle |
| 10476 | 11230 | fn netShutdownPosix(userdata: ?*anyopaque, handle: net.Socket.Handle, how: net.ShutdownHow) net.ShutdownError!void { |
| 10477 | 11231 | if (!have_networking) return error.NetworkDown; |
| 10478 | 11232 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 10479 | | const current_thread = Thread.getCurrent(t); |
| 11233 | _ = t; |
| 10480 | 11234 | |
| 10481 | 11235 | const posix_how: i32 = switch (how) { |
| 10482 | 11236 | .recv => posix.SHUT.RD, |
| ... | ... | @@ -10484,19 +11238,16 @@ fn netShutdownPosix(userdata: ?*anyopaque, handle: net.Socket.Handle, how: net.S |
| 10484 | 11238 | .both => posix.SHUT.RDWR, |
| 10485 | 11239 | }; |
| 10486 | 11240 | |
| 10487 | | try current_thread.beginSyscall(); |
| 11241 | const syscall: Syscall = try .start(); |
| 10488 | 11242 | while (true) { |
| 10489 | 11243 | switch (posix.errno(posix.system.shutdown(handle, posix_how))) { |
| 10490 | | .SUCCESS => { |
| 10491 | | current_thread.endSyscall(); |
| 10492 | | return; |
| 10493 | | }, |
| 11244 | .SUCCESS => return syscall.finish(), |
| 10494 | 11245 | .INTR => { |
| 10495 | | try current_thread.checkCancel(); |
| 11246 | try syscall.checkCancel(); |
| 10496 | 11247 | continue; |
| 10497 | 11248 | }, |
| 10498 | 11249 | else => |e| { |
| 10499 | | current_thread.endSyscall(); |
| 11250 | syscall.finish(); |
| 10500 | 11251 | switch (e) { |
| 10501 | 11252 | .BADF, .NOTSOCK, .INVAL => |err| return errnoBug(err), |
| 10502 | 11253 | .NOTCONN => return error.SocketUnconnected, |
| ... | ... | @@ -10511,7 +11262,6 @@ fn netShutdownPosix(userdata: ?*anyopaque, handle: net.Socket.Handle, how: net.S |
| 10511 | 11262 | fn netShutdownWindows(userdata: ?*anyopaque, handle: net.Socket.Handle, how: net.ShutdownHow) net.ShutdownError!void { |
| 10512 | 11263 | if (!have_networking) return error.NetworkDown; |
| 10513 | 11264 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 10514 | | const current_thread = Thread.getCurrent(t); |
| 10515 | 11265 | |
| 10516 | 11266 | const wsa_how: i32 = switch (how) { |
| 10517 | 11267 | .recv => ws2_32.SD_RECEIVE, |
| ... | ... | @@ -10519,27 +11269,27 @@ fn netShutdownWindows(userdata: ?*anyopaque, handle: net.Socket.Handle, how: net |
| 10519 | 11269 | .both => ws2_32.SD_BOTH, |
| 10520 | 11270 | }; |
| 10521 | 11271 | |
| 10522 | | try current_thread.beginSyscall(); |
| 11272 | var syscall: Syscall = try .start(); |
| 10523 | 11273 | while (true) { |
| 10524 | 11274 | const rc = ws2_32.shutdown(handle, wsa_how); |
| 10525 | 11275 | if (rc != ws2_32.SOCKET_ERROR) { |
| 10526 | | current_thread.endSyscall(); |
| 11276 | syscall.finish(); |
| 10527 | 11277 | return; |
| 10528 | 11278 | } |
| 10529 | 11279 | switch (ws2_32.WSAGetLastError()) { |
| 10530 | | .EINTR => { |
| 10531 | | try current_thread.checkCancel(); |
| 11280 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => { |
| 11281 | try syscall.checkCancel(); |
| 10532 | 11282 | continue; |
| 10533 | 11283 | }, |
| 10534 | 11284 | .NOTINITIALISED => { |
| 11285 | syscall.finish(); |
| 10535 | 11286 | try initializeWsa(t); |
| 10536 | | try current_thread.checkCancel(); |
| 11287 | syscall = try .start(); |
| 10537 | 11288 | continue; |
| 10538 | 11289 | }, |
| 10539 | 11290 | else => |e| { |
| 10540 | | current_thread.endSyscall(); |
| 11291 | syscall.finish(); |
| 10541 | 11292 | switch (e) { |
| 10542 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 10543 | 11293 | .ECONNABORTED => return error.ConnectionAborted, |
| 10544 | 11294 | .ECONNRESET => return error.ConnectionResetByPeer, |
| 10545 | 11295 | .ENETDOWN => return error.NetworkDown, |
| ... | ... | @@ -10562,10 +11312,10 @@ fn netInterfaceNameResolve( |
| 10562 | 11312 | ) net.Interface.Name.ResolveError!net.Interface { |
| 10563 | 11313 | if (!have_networking) return error.InterfaceNotFound; |
| 10564 | 11314 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 10565 | | const current_thread = Thread.getCurrent(t); |
| 11315 | _ = t; |
| 10566 | 11316 | |
| 10567 | 11317 | if (native_os == .linux) { |
| 10568 | | const sock_fd = openSocketPosix(current_thread, posix.AF.UNIX, .{ .mode = .dgram }) catch |err| switch (err) { |
| 11318 | const sock_fd = openSocketPosix(posix.AF.UNIX, .{ .mode = .dgram }) catch |err| switch (err) { |
| 10569 | 11319 | error.ProcessFdQuotaExceeded => return error.SystemResources, |
| 10570 | 11320 | error.SystemFdQuotaExceeded => return error.SystemResources, |
| 10571 | 11321 | error.AddressFamilyUnsupported => return error.Unexpected, |
| ... | ... | @@ -10582,19 +11332,19 @@ fn netInterfaceNameResolve( |
| 10582 | 11332 | .ifru = undefined, |
| 10583 | 11333 | }; |
| 10584 | 11334 | |
| 10585 | | try current_thread.beginSyscall(); |
| 11335 | const syscall: Syscall = try .start(); |
| 10586 | 11336 | while (true) { |
| 10587 | 11337 | switch (posix.errno(posix.system.ioctl(sock_fd, posix.SIOCGIFINDEX, @intFromPtr(&ifr)))) { |
| 10588 | 11338 | .SUCCESS => { |
| 10589 | | current_thread.endSyscall(); |
| 11339 | syscall.finish(); |
| 10590 | 11340 | return .{ .index = @bitCast(ifr.ifru.ivalue) }; |
| 10591 | 11341 | }, |
| 10592 | 11342 | .INTR => { |
| 10593 | | try current_thread.checkCancel(); |
| 11343 | try syscall.checkCancel(); |
| 10594 | 11344 | continue; |
| 10595 | 11345 | }, |
| 10596 | 11346 | else => |e| { |
| 10597 | | current_thread.endSyscall(); |
| 11347 | syscall.finish(); |
| 10598 | 11348 | switch (e) { |
| 10599 | 11349 | .INVAL => |err| return errnoBug(err), // Bad parameters. |
| 10600 | 11350 | .NOTTY => |err| return errnoBug(err), |
| ... | ... | @@ -10611,12 +11361,12 @@ fn netInterfaceNameResolve( |
| 10611 | 11361 | } |
| 10612 | 11362 | |
| 10613 | 11363 | if (native_os == .windows) { |
| 10614 | | try current_thread.checkCancel(); |
| 11364 | try Thread.checkCancel(); |
| 10615 | 11365 | @panic("TODO implement netInterfaceNameResolve for Windows"); |
| 10616 | 11366 | } |
| 10617 | 11367 | |
| 10618 | 11368 | if (builtin.link_libc) { |
| 10619 | | try current_thread.checkCancel(); |
| 11369 | try Thread.checkCancel(); |
| 10620 | 11370 | const index = std.c.if_nametoindex(&name.bytes); |
| 10621 | 11371 | if (index == 0) return error.InterfaceNotFound; |
| 10622 | 11372 | return .{ .index = @bitCast(index) }; |
| ... | ... | @@ -10636,8 +11386,8 @@ fn netInterfaceNameResolveUnavailable( |
| 10636 | 11386 | |
| 10637 | 11387 | fn netInterfaceName(userdata: ?*anyopaque, interface: net.Interface) net.Interface.NameError!net.Interface.Name { |
| 10638 | 11388 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 10639 | | const current_thread = Thread.getCurrent(t); |
| 10640 | | try current_thread.checkCancel(); |
| 11389 | _ = t; |
| 11390 | try Thread.checkCancel(); |
| 10641 | 11391 | |
| 10642 | 11392 | if (native_os == .linux) { |
| 10643 | 11393 | _ = interface; |
| ... | ... | @@ -10696,7 +11446,6 @@ fn netLookupFallible( |
| 10696 | 11446 | ) (net.HostName.LookupError || Io.QueueClosedError)!void { |
| 10697 | 11447 | if (!have_networking) return error.NetworkDown; |
| 10698 | 11448 | |
| 10699 | | const current_thread: *Thread = .getCurrent(t); |
| 10700 | 11449 | const t_io = io(t); |
| 10701 | 11450 | const name = host_name.bytes; |
| 10702 | 11451 | assert(name.len <= HostName.max_len); |
| ... | ... | @@ -10733,18 +11482,17 @@ fn netLookupFallible( |
| 10733 | 11482 | .provider = null, |
| 10734 | 11483 | .next = null, |
| 10735 | 11484 | }; |
| 10736 | | const cancel_handle: ?*windows.HANDLE = null; |
| 10737 | 11485 | var res: *ws2_32.ADDRINFOEXW = undefined; |
| 10738 | 11486 | const timeout: ?*ws2_32.timeval = null; |
| 10739 | 11487 | while (true) { |
| 10740 | | try current_thread.checkCancel(); // TODO make requestCancel call GetAddrInfoExCancel |
| 10741 | | // TODO make this append to the queue eagerly rather than blocking until |
| 10742 | | // the whole thing finishes |
| 10743 | | const rc: ws2_32.WinsockError = @enumFromInt(ws2_32.GetAddrInfoExW(name_w, port_w, .DNS, null, &hints, &res, timeout, null, null, cancel_handle)); |
| 11488 | // TODO: hook this up to cancelation with `Thread.Status.cancelation.blocked_windows_dns`. |
| 11489 | // See matching TODO in `Thread.cancelAwaitable`. |
| 11490 | try Thread.checkCancel(); |
| 11491 | // TODO make this append to the queue eagerly rather than blocking until the whole thing finishes |
| 11492 | const rc: ws2_32.WinsockError = @enumFromInt(ws2_32.GetAddrInfoExW(name_w, port_w, .DNS, null, &hints, &res, timeout, null, null, null)); |
| 10744 | 11493 | switch (rc) { |
| 10745 | 11494 | @as(ws2_32.WinsockError, @enumFromInt(0)) => break, |
| 10746 | | .EINTR => continue, |
| 10747 | | .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => return error.Canceled, |
| 11495 | .EINTR, .ECANCELLED, .E_CANCELLED, .OPERATION_ABORTED => continue, |
| 10748 | 11496 | .NOTINITIALISED => { |
| 10749 | 11497 | try initializeWsa(t); |
| 10750 | 11498 | continue; |
| ... | ... | @@ -10884,25 +11632,25 @@ fn netLookupFallible( |
| 10884 | 11632 | .next = null, |
| 10885 | 11633 | }; |
| 10886 | 11634 | var res: ?*posix.addrinfo = null; |
| 10887 | | try current_thread.beginSyscall(); |
| 11635 | const syscall: Syscall = try .start(); |
| 10888 | 11636 | while (true) { |
| 10889 | 11637 | switch (posix.system.getaddrinfo(name_c.ptr, port_c.ptr, &hints, &res)) { |
| 10890 | 11638 | @as(posix.system.EAI, @enumFromInt(0)) => { |
| 10891 | | current_thread.endSyscall(); |
| 11639 | syscall.finish(); |
| 10892 | 11640 | break; |
| 10893 | 11641 | }, |
| 10894 | 11642 | .SYSTEM => switch (posix.errno(-1)) { |
| 10895 | 11643 | .INTR => { |
| 10896 | | try current_thread.checkCancel(); |
| 11644 | try syscall.checkCancel(); |
| 10897 | 11645 | continue; |
| 10898 | 11646 | }, |
| 10899 | 11647 | else => |e| { |
| 10900 | | current_thread.endSyscall(); |
| 11648 | syscall.finish(); |
| 10901 | 11649 | return posix.unexpectedErrno(e); |
| 10902 | 11650 | }, |
| 10903 | 11651 | }, |
| 10904 | 11652 | else => |e| { |
| 10905 | | current_thread.endSyscall(); |
| 11653 | syscall.finish(); |
| 10906 | 11654 | switch (e) { |
| 10907 | 11655 | .ADDRFAMILY => return error.AddressFamilyUnsupported, |
| 10908 | 11656 | .AGAIN => return error.NameServerFailure, |
| ... | ... | @@ -10977,7 +11725,7 @@ fn unlockStderr(userdata: ?*anyopaque) void { |
| 10977 | 11725 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 10978 | 11726 | t.stderr_writer.interface.flush() catch |err| switch (err) { |
| 10979 | 11727 | error.WriteFailed => switch (t.stderr_writer.err.?) { |
| 10980 | | error.Canceled => recancel(t), |
| 11728 | error.Canceled => recancelInner(), |
| 10981 | 11729 | else => {}, |
| 10982 | 11730 | }, |
| 10983 | 11731 | }; |
| ... | ... | @@ -10989,62 +11737,66 @@ fn unlockStderr(userdata: ?*anyopaque) void { |
| 10989 | 11737 | fn processSetCurrentDir(userdata: ?*anyopaque, dir: Dir) std.process.SetCurrentDirError!void { |
| 10990 | 11738 | if (native_os == .wasi) return error.OperationUnsupported; |
| 10991 | 11739 | const t: *Threaded = @ptrCast(@alignCast(userdata)); |
| 10992 | | const current_thread = Thread.getCurrent(t); |
| 11740 | _ = t; |
| 10993 | 11741 | |
| 10994 | 11742 | if (is_windows) { |
| 10995 | | try current_thread.checkCancel(); |
| 10996 | 11743 | var dir_path_buffer: [windows.PATH_MAX_WIDE]u16 = undefined; |
| 10997 | 11744 | // TODO move GetFinalPathNameByHandle logic into std.Io.Threaded and add cancel checks |
| 11745 | try Thread.checkCancel(); |
| 10998 | 11746 | const dir_path = try windows.GetFinalPathNameByHandle(dir.handle, .{}, &dir_path_buffer); |
| 10999 | 11747 | const path_len_bytes = std.math.cast(u16, dir_path.len * 2) orelse return error.NameTooLong; |
| 11000 | | try current_thread.checkCancel(); |
| 11001 | 11748 | var nt_name: windows.UNICODE_STRING = .{ |
| 11002 | 11749 | .Length = path_len_bytes, |
| 11003 | 11750 | .MaximumLength = path_len_bytes, |
| 11004 | 11751 | .Buffer = @constCast(dir_path.ptr), |
| 11005 | 11752 | }; |
| 11006 | | switch (windows.ntdll.RtlSetCurrentDirectory_U(&nt_name)) { |
| 11007 | | .SUCCESS => return, |
| 11008 | | .OBJECT_NAME_INVALID => return error.BadPathName, |
| 11009 | | .OBJECT_NAME_NOT_FOUND => return error.FileNotFound, |
| 11010 | | .OBJECT_PATH_NOT_FOUND => return error.FileNotFound, |
| 11011 | | .NO_MEDIA_IN_DEVICE => return error.NoDevice, |
| 11012 | | .INVALID_PARAMETER => |err| return windows.statusBug(err), |
| 11013 | | .ACCESS_DENIED => return error.AccessDenied, |
| 11014 | | .OBJECT_PATH_SYNTAX_BAD => |err| return windows.statusBug(err), |
| 11015 | | .NOT_A_DIRECTORY => return error.NotDir, |
| 11016 | | else => |status| return windows.unexpectedStatus(status), |
| 11017 | | } |
| 11753 | const syscall: Syscall = try .start(); |
| 11754 | while (true) switch (windows.ntdll.RtlSetCurrentDirectory_U(&nt_name)) { |
| 11755 | .SUCCESS => return syscall.finish(), |
| 11756 | .OBJECT_NAME_INVALID => return syscall.fail(error.BadPathName), |
| 11757 | .OBJECT_NAME_NOT_FOUND => return syscall.fail(error.FileNotFound), |
| 11758 | .OBJECT_PATH_NOT_FOUND => return syscall.fail(error.FileNotFound), |
| 11759 | .NO_MEDIA_IN_DEVICE => return syscall.fail(error.NoDevice), |
| 11760 | .INVALID_PARAMETER => |err| return syscall.ntstatusBug(err), |
| 11761 | .ACCESS_DENIED => return syscall.fail(error.AccessDenied), |
| 11762 | .OBJECT_PATH_SYNTAX_BAD => |err| return syscall.ntstatusBug(err), |
| 11763 | .NOT_A_DIRECTORY => return syscall.fail(error.NotDir), |
| 11764 | .CANCELLED => { |
| 11765 | try syscall.checkCancel(); |
| 11766 | continue; |
| 11767 | }, |
| 11768 | else => |status| return syscall.unexpectedNtstatus(status), |
| 11769 | }; |
| 11018 | 11770 | } |
| 11019 | 11771 | |
| 11020 | 11772 | if (dir.handle == posix.AT.FDCWD) return; |
| 11021 | 11773 | |
| 11022 | | try current_thread.beginSyscall(); |
| 11774 | const syscall: Syscall = try .start(); |
| 11023 | 11775 | while (true) { |
| 11024 | 11776 | switch (posix.errno(posix.system.fchdir(dir.handle))) { |
| 11025 | | .SUCCESS => return current_thread.endSyscall(), |
| 11777 | .SUCCESS => return syscall.finish(), |
| 11026 | 11778 | .INTR => { |
| 11027 | | try current_thread.checkCancel(); |
| 11779 | try syscall.checkCancel(); |
| 11028 | 11780 | continue; |
| 11029 | 11781 | }, |
| 11030 | 11782 | .ACCES => { |
| 11031 | | current_thread.endSyscall(); |
| 11783 | syscall.finish(); |
| 11032 | 11784 | return error.AccessDenied; |
| 11033 | 11785 | }, |
| 11034 | 11786 | .BADF => |err| { |
| 11035 | | current_thread.endSyscall(); |
| 11787 | syscall.finish(); |
| 11036 | 11788 | return errnoBug(err); |
| 11037 | 11789 | }, |
| 11038 | 11790 | .NOTDIR => { |
| 11039 | | current_thread.endSyscall(); |
| 11791 | syscall.finish(); |
| 11040 | 11792 | return error.NotDir; |
| 11041 | 11793 | }, |
| 11042 | 11794 | .IO => { |
| 11043 | | current_thread.endSyscall(); |
| 11795 | syscall.finish(); |
| 11044 | 11796 | return error.FileSystem; |
| 11045 | 11797 | }, |
| 11046 | 11798 | else => |err| { |
| 11047 | | current_thread.endSyscall(); |
| 11799 | syscall.finish(); |
| 11048 | 11800 | return posix.unexpectedErrno(err); |
| 11049 | 11801 | }, |
| 11050 | 11802 | } |
| ... | ... | @@ -11825,391 +12577,6 @@ fn initializeWsa(t: *Threaded) error{ NetworkDown, Canceled }!void { |
| 11825 | 12577 | |
| 11826 | 12578 | fn doNothingSignalHandler(_: posix.SIG) callconv(.c) void {} |
| 11827 | 12579 | |
| 11828 | | const pthreads_futex = struct { |
| 11829 | | const c = std.c; |
| 11830 | | const atomic = std.atomic; |
| 11831 | | |
| 11832 | | const Event = struct { |
| 11833 | | cond: c.pthread_cond_t, |
| 11834 | | mutex: c.pthread_mutex_t, |
| 11835 | | state: enum { empty, waiting, notified }, |
| 11836 | | |
| 11837 | | fn init(self: *Event) void { |
| 11838 | | // Use static init instead of pthread_cond/mutex_init() since this is generally faster. |
| 11839 | | self.cond = .{}; |
| 11840 | | self.mutex = .{}; |
| 11841 | | self.state = .empty; |
| 11842 | | } |
| 11843 | | |
| 11844 | | fn deinit(self: *Event) void { |
| 11845 | | // Some platforms reportedly give EINVAL for statically initialized pthread types. |
| 11846 | | const rc = c.pthread_cond_destroy(&self.cond); |
| 11847 | | assert(rc == .SUCCESS or rc == .INVAL); |
| 11848 | | |
| 11849 | | const rm = c.pthread_mutex_destroy(&self.mutex); |
| 11850 | | assert(rm == .SUCCESS or rm == .INVAL); |
| 11851 | | |
| 11852 | | self.* = undefined; |
| 11853 | | } |
| 11854 | | |
| 11855 | | fn wait(self: *Event, timeout: ?u64) error{Timeout}!void { |
| 11856 | | assert(c.pthread_mutex_lock(&self.mutex) == .SUCCESS); |
| 11857 | | defer assert(c.pthread_mutex_unlock(&self.mutex) == .SUCCESS); |
| 11858 | | |
| 11859 | | // Early return if the event was already set. |
| 11860 | | if (self.state == .notified) { |
| 11861 | | return; |
| 11862 | | } |
| 11863 | | |
| 11864 | | // Compute the absolute timeout if one was specified. |
| 11865 | | // POSIX requires that REALTIME is used by default for the pthread timedwait functions. |
| 11866 | | // This can be changed with pthread_condattr_setclock, but it's an extension and may not be available everywhere. |
| 11867 | | var ts: c.timespec = undefined; |
| 11868 | | if (timeout) |timeout_ns| { |
| 11869 | | ts = std.posix.clock_gettime(c.CLOCK.REALTIME) catch return error.Timeout; |
| 11870 | | ts.sec +|= @as(@TypeOf(ts.sec), @intCast(timeout_ns / std.time.ns_per_s)); |
| 11871 | | ts.nsec += @as(@TypeOf(ts.nsec), @intCast(timeout_ns % std.time.ns_per_s)); |
| 11872 | | |
| 11873 | | if (ts.nsec >= std.time.ns_per_s) { |
| 11874 | | ts.sec +|= 1; |
| 11875 | | ts.nsec -= std.time.ns_per_s; |
| 11876 | | } |
| 11877 | | } |
| 11878 | | |
| 11879 | | // Start waiting on the event - there can be only one thread waiting. |
| 11880 | | assert(self.state == .empty); |
| 11881 | | self.state = .waiting; |
| 11882 | | |
| 11883 | | while (true) { |
| 11884 | | // Block using either pthread_cond_wait or pthread_cond_timewait if there's an absolute timeout. |
| 11885 | | const rc = blk: { |
| 11886 | | if (timeout == null) break :blk c.pthread_cond_wait(&self.cond, &self.mutex); |
| 11887 | | break :blk c.pthread_cond_timedwait(&self.cond, &self.mutex, &ts); |
| 11888 | | }; |
| 11889 | | |
| 11890 | | // After waking up, check if the event was set. |
| 11891 | | if (self.state == .notified) { |
| 11892 | | return; |
| 11893 | | } |
| 11894 | | |
| 11895 | | assert(self.state == .waiting); |
| 11896 | | switch (rc) { |
| 11897 | | .SUCCESS => {}, |
| 11898 | | .TIMEDOUT => { |
| 11899 | | // If timed out, reset the event to avoid the set() thread doing an unnecessary signal(). |
| 11900 | | self.state = .empty; |
| 11901 | | return error.Timeout; |
| 11902 | | }, |
| 11903 | | .INVAL => recoverableOsBugDetected(), // cond, mutex, and potentially ts should all be valid |
| 11904 | | .PERM => recoverableOsBugDetected(), // mutex is locked when cond_*wait() functions are called |
| 11905 | | else => recoverableOsBugDetected(), |
| 11906 | | } |
| 11907 | | } |
| 11908 | | } |
| 11909 | | |
| 11910 | | fn set(self: *Event) void { |
| 11911 | | assert(c.pthread_mutex_lock(&self.mutex) == .SUCCESS); |
| 11912 | | defer assert(c.pthread_mutex_unlock(&self.mutex) == .SUCCESS); |
| 11913 | | |
| 11914 | | // Make sure that multiple calls to set() were not done on the same Event. |
| 11915 | | const old_state = self.state; |
| 11916 | | assert(old_state != .notified); |
| 11917 | | |
| 11918 | | // Mark the event as set and wake up the waiting thread if there was one. |
| 11919 | | // This must be done while the mutex as the wait() thread could deallocate |
| 11920 | | // the condition variable once it observes the new state, potentially causing a UAF if done unlocked. |
| 11921 | | self.state = .notified; |
| 11922 | | if (old_state == .waiting) { |
| 11923 | | assert(c.pthread_cond_signal(&self.cond) == .SUCCESS); |
| 11924 | | } |
| 11925 | | } |
| 11926 | | }; |
| 11927 | | |
| 11928 | | const Treap = std.Treap(usize, std.math.order); |
| 11929 | | const Waiter = struct { |
| 11930 | | node: Treap.Node, |
| 11931 | | prev: ?*Waiter, |
| 11932 | | next: ?*Waiter, |
| 11933 | | tail: ?*Waiter, |
| 11934 | | is_queued: bool, |
| 11935 | | event: Event, |
| 11936 | | }; |
| 11937 | | |
| 11938 | | // An unordered set of Waiters |
| 11939 | | const WaitList = struct { |
| 11940 | | top: ?*Waiter = null, |
| 11941 | | len: usize = 0, |
| 11942 | | |
| 11943 | | fn push(self: *WaitList, waiter: *Waiter) void { |
| 11944 | | waiter.next = self.top; |
| 11945 | | self.top = waiter; |
| 11946 | | self.len += 1; |
| 11947 | | } |
| 11948 | | |
| 11949 | | fn pop(self: *WaitList) ?*Waiter { |
| 11950 | | const waiter = self.top orelse return null; |
| 11951 | | self.top = waiter.next; |
| 11952 | | self.len -= 1; |
| 11953 | | return waiter; |
| 11954 | | } |
| 11955 | | }; |
| 11956 | | |
| 11957 | | const WaitQueue = struct { |
| 11958 | | fn insert(treap: *Treap, address: usize, waiter: *Waiter) void { |
| 11959 | | // prepare the waiter to be inserted. |
| 11960 | | waiter.next = null; |
| 11961 | | waiter.is_queued = true; |
| 11962 | | |
| 11963 | | // Find the wait queue entry associated with the address. |
| 11964 | | // If there isn't a wait queue on the address, this waiter creates the queue. |
| 11965 | | var entry = treap.getEntryFor(address); |
| 11966 | | const entry_node = entry.node orelse { |
| 11967 | | waiter.prev = null; |
| 11968 | | waiter.tail = waiter; |
| 11969 | | entry.set(&waiter.node); |
| 11970 | | return; |
| 11971 | | }; |
| 11972 | | |
| 11973 | | // There's a wait queue on the address; get the queue head and tail. |
| 11974 | | const head: *Waiter = @fieldParentPtr("node", entry_node); |
| 11975 | | const tail = head.tail orelse unreachable; |
| 11976 | | |
| 11977 | | // Push the waiter to the tail by replacing it and linking to the previous tail. |
| 11978 | | head.tail = waiter; |
| 11979 | | tail.next = waiter; |
| 11980 | | waiter.prev = tail; |
| 11981 | | } |
| 11982 | | |
| 11983 | | fn remove(treap: *Treap, address: usize, max_waiters: usize) WaitList { |
| 11984 | | // Find the wait queue associated with this address and get the head/tail if any. |
| 11985 | | var entry = treap.getEntryFor(address); |
| 11986 | | var queue_head: ?*Waiter = if (entry.node) |node| @fieldParentPtr("node", node) else null; |
| 11987 | | const queue_tail = if (queue_head) |head| head.tail else null; |
| 11988 | | |
| 11989 | | // Once we're done updating the head, fix it's tail pointer and update the treap's queue head as well. |
| 11990 | | defer entry.set(blk: { |
| 11991 | | const new_head = queue_head orelse break :blk null; |
| 11992 | | new_head.tail = queue_tail; |
| 11993 | | break :blk &new_head.node; |
| 11994 | | }); |
| 11995 | | |
| 11996 | | var removed = WaitList{}; |
| 11997 | | while (removed.len < max_waiters) { |
| 11998 | | // dequeue and collect waiters from their wait queue. |
| 11999 | | const waiter = queue_head orelse break; |
| 12000 | | queue_head = waiter.next; |
| 12001 | | removed.push(waiter); |
| 12002 | | |
| 12003 | | // When dequeueing, we must mark is_queued as false. |
| 12004 | | // This ensures that a waiter which calls tryRemove() returns false. |
| 12005 | | assert(waiter.is_queued); |
| 12006 | | waiter.is_queued = false; |
| 12007 | | } |
| 12008 | | |
| 12009 | | return removed; |
| 12010 | | } |
| 12011 | | |
| 12012 | | fn tryRemove(treap: *Treap, address: usize, waiter: *Waiter) bool { |
| 12013 | | if (!waiter.is_queued) { |
| 12014 | | return false; |
| 12015 | | } |
| 12016 | | |
| 12017 | | queue_remove: { |
| 12018 | | // Find the wait queue associated with the address. |
| 12019 | | var entry = blk: { |
| 12020 | | // A waiter without a previous link means it's the queue head that's in the treap so we can avoid lookup. |
| 12021 | | if (waiter.prev == null) { |
| 12022 | | assert(waiter.node.key == address); |
| 12023 | | break :blk treap.getEntryForExisting(&waiter.node); |
| 12024 | | } |
| 12025 | | break :blk treap.getEntryFor(address); |
| 12026 | | }; |
| 12027 | | |
| 12028 | | // The queue head and tail must exist if we're removing a queued waiter. |
| 12029 | | const head: *Waiter = @fieldParentPtr("node", entry.node orelse unreachable); |
| 12030 | | const tail = head.tail orelse unreachable; |
| 12031 | | |
| 12032 | | // A waiter with a previous link is never the head of the queue. |
| 12033 | | if (waiter.prev) |prev| { |
| 12034 | | assert(waiter != head); |
| 12035 | | prev.next = waiter.next; |
| 12036 | | |
| 12037 | | // A waiter with both a previous and next link is in the middle. |
| 12038 | | // We only need to update the surrounding waiter's links to remove it. |
| 12039 | | if (waiter.next) |next| { |
| 12040 | | assert(waiter != tail); |
| 12041 | | next.prev = waiter.prev; |
| 12042 | | break :queue_remove; |
| 12043 | | } |
| 12044 | | |
| 12045 | | // A waiter with a previous but no next link means it's the tail of the queue. |
| 12046 | | // In that case, we need to update the head's tail reference. |
| 12047 | | assert(waiter == tail); |
| 12048 | | head.tail = waiter.prev; |
| 12049 | | break :queue_remove; |
| 12050 | | } |
| 12051 | | |
| 12052 | | // A waiter with no previous link means it's the queue head of queue. |
| 12053 | | // We must replace (or remove) the head waiter reference in the treap. |
| 12054 | | assert(waiter == head); |
| 12055 | | entry.set(blk: { |
| 12056 | | const new_head = waiter.next orelse break :blk null; |
| 12057 | | new_head.tail = head.tail; |
| 12058 | | break :blk &new_head.node; |
| 12059 | | }); |
| 12060 | | } |
| 12061 | | |
| 12062 | | // Mark the waiter as successfully removed. |
| 12063 | | waiter.is_queued = false; |
| 12064 | | return true; |
| 12065 | | } |
| 12066 | | }; |
| 12067 | | |
| 12068 | | const Bucket = struct { |
| 12069 | | mutex: c.pthread_mutex_t align(atomic.cache_line) = .{}, |
| 12070 | | pending: atomic.Value(usize) = atomic.Value(usize).init(0), |
| 12071 | | treap: Treap = .{}, |
| 12072 | | |
| 12073 | | // Global array of buckets that addresses map to. |
| 12074 | | // Bucket array size is pretty much arbitrary here, but it must be a power of two for fibonacci hashing. |
| 12075 | | var buckets = [_]Bucket{.{}} ** @bitSizeOf(usize); |
| 12076 | | |
| 12077 | | // https://github.com/Amanieu/parking_lot/blob/1cf12744d097233316afa6c8b7d37389e4211756/core/src/parking_lot.rs#L343-L353 |
| 12078 | | fn from(address: usize) *Bucket { |
| 12079 | | // The upper `@bitSizeOf(usize)` bits of the fibonacci golden ratio. |
| 12080 | | // Hashing this via (h * k) >> (64 - b) where k=golden-ration and b=bitsize-of-array |
| 12081 | | // evenly lays out h=hash values over the bit range even when the hash has poor entropy (identity-hash for pointers). |
| 12082 | | const max_multiplier_bits = @bitSizeOf(usize); |
| 12083 | | const fibonacci_multiplier = 0x9E3779B97F4A7C15 >> (64 - max_multiplier_bits); |
| 12084 | | |
| 12085 | | const max_bucket_bits = @ctz(buckets.len); |
| 12086 | | comptime assert(std.math.isPowerOfTwo(buckets.len)); |
| 12087 | | |
| 12088 | | const index = (address *% fibonacci_multiplier) >> (max_multiplier_bits - max_bucket_bits); |
| 12089 | | return &buckets[index]; |
| 12090 | | } |
| 12091 | | }; |
| 12092 | | |
| 12093 | | const Address = struct { |
| 12094 | | fn from(ptr: *const u32) usize { |
| 12095 | | // Get the alignment of the pointer. |
| 12096 | | const alignment = @alignOf(atomic.Value(u32)); |
| 12097 | | comptime assert(std.math.isPowerOfTwo(alignment)); |
| 12098 | | |
| 12099 | | // Make sure the pointer is aligned, |
| 12100 | | // then cut off the zero bits from the alignment to get the unique address. |
| 12101 | | const addr = @intFromPtr(ptr); |
| 12102 | | assert(addr & (alignment - 1) == 0); |
| 12103 | | return addr >> @ctz(@as(usize, alignment)); |
| 12104 | | } |
| 12105 | | }; |
| 12106 | | |
| 12107 | | fn wait(ptr: *const u32, expect: u32, timeout: ?u64) error{Timeout}!void { |
| 12108 | | const address = Address.from(ptr); |
| 12109 | | const bucket = Bucket.from(address); |
| 12110 | | |
| 12111 | | // Announce that there's a waiter in the bucket before checking the ptr/expect condition. |
| 12112 | | // If the announcement is reordered after the ptr check, the waiter could deadlock: |
| 12113 | | // |
| 12114 | | // - T1: checks ptr == expect which is true |
| 12115 | | // - T2: updates ptr to != expect |
| 12116 | | // - T2: does Futex.wake(), sees no pending waiters, exits |
| 12117 | | // - T1: bumps pending waiters (was reordered after the ptr == expect check) |
| 12118 | | // - T1: goes to sleep and misses both the ptr change and T2's wake up |
| 12119 | | // |
| 12120 | | // acquire barrier to ensure the announcement happens before the ptr check below. |
| 12121 | | var pending = bucket.pending.fetchAdd(1, .acquire); |
| 12122 | | assert(pending < std.math.maxInt(usize)); |
| 12123 | | |
| 12124 | | // If the wait gets canceled, remove the pending count we previously added. |
| 12125 | | // This is done outside the mutex lock to keep the critical section short in case of contention. |
| 12126 | | var canceled = false; |
| 12127 | | defer if (canceled) { |
| 12128 | | pending = bucket.pending.fetchSub(1, .monotonic); |
| 12129 | | assert(pending > 0); |
| 12130 | | }; |
| 12131 | | |
| 12132 | | var waiter: Waiter = undefined; |
| 12133 | | { |
| 12134 | | assert(c.pthread_mutex_lock(&bucket.mutex) == .SUCCESS); |
| 12135 | | defer assert(c.pthread_mutex_unlock(&bucket.mutex) == .SUCCESS); |
| 12136 | | |
| 12137 | | canceled = @atomicLoad(u32, ptr, .monotonic) != expect; |
| 12138 | | if (canceled) { |
| 12139 | | return; |
| 12140 | | } |
| 12141 | | |
| 12142 | | waiter.event.init(); |
| 12143 | | WaitQueue.insert(&bucket.treap, address, &waiter); |
| 12144 | | } |
| 12145 | | |
| 12146 | | defer { |
| 12147 | | assert(!waiter.is_queued); |
| 12148 | | waiter.event.deinit(); |
| 12149 | | } |
| 12150 | | |
| 12151 | | waiter.event.wait(timeout) catch { |
| 12152 | | // If we fail to cancel after a timeout, it means a wake() thread |
| 12153 | | // dequeued us and will wake us up. We must wait until the event is |
| 12154 | | // set as that's a signal that the wake() thread won't access the |
| 12155 | | // waiter memory anymore. If we return early without waiting, the |
| 12156 | | // waiter on the stack would be invalidated and the wake() thread |
| 12157 | | // risks a UAF. |
| 12158 | | defer if (!canceled) waiter.event.wait(null) catch unreachable; |
| 12159 | | |
| 12160 | | assert(c.pthread_mutex_lock(&bucket.mutex) == .SUCCESS); |
| 12161 | | defer assert(c.pthread_mutex_unlock(&bucket.mutex) == .SUCCESS); |
| 12162 | | |
| 12163 | | canceled = WaitQueue.tryRemove(&bucket.treap, address, &waiter); |
| 12164 | | if (canceled) { |
| 12165 | | return error.Timeout; |
| 12166 | | } |
| 12167 | | }; |
| 12168 | | } |
| 12169 | | |
| 12170 | | fn wake(ptr: *const u32, max_waiters: u32) void { |
| 12171 | | const address = Address.from(ptr); |
| 12172 | | const bucket = Bucket.from(address); |
| 12173 | | |
| 12174 | | // Quick check if there's even anything to wake up. |
| 12175 | | // The change to the ptr's value must happen before we check for pending waiters. |
| 12176 | | // If not, the wake() thread could miss a sleeping waiter and have it deadlock: |
| 12177 | | // |
| 12178 | | // - T2: p = has pending waiters (reordered before the ptr update) |
| 12179 | | // - T1: bump pending waiters |
| 12180 | | // - T1: if ptr == expected: sleep() |
| 12181 | | // - T2: update ptr != expected |
| 12182 | | // - T2: p is false from earlier so doesn't wake (T1 missed ptr update and T2 missed T1 sleeping) |
| 12183 | | // |
| 12184 | | // What we really want here is a Release load, but that doesn't exist under the C11 memory model. |
| 12185 | | // We could instead do `bucket.pending.fetchAdd(0, Release) == 0` which achieves effectively the same thing, |
| 12186 | | // LLVM lowers the fetchAdd(0, .release) into an mfence+load which avoids gaining ownership of the cache-line. |
| 12187 | | if (bucket.pending.fetchAdd(0, .release) == 0) { |
| 12188 | | return; |
| 12189 | | } |
| 12190 | | |
| 12191 | | // Keep a list of all the waiters notified and wake then up outside the mutex critical section. |
| 12192 | | var notified = WaitList{}; |
| 12193 | | defer if (notified.len > 0) { |
| 12194 | | const pending = bucket.pending.fetchSub(notified.len, .monotonic); |
| 12195 | | assert(pending >= notified.len); |
| 12196 | | |
| 12197 | | while (notified.pop()) |waiter| { |
| 12198 | | assert(!waiter.is_queued); |
| 12199 | | waiter.event.set(); |
| 12200 | | } |
| 12201 | | }; |
| 12202 | | |
| 12203 | | assert(c.pthread_mutex_lock(&bucket.mutex) == .SUCCESS); |
| 12204 | | defer assert(c.pthread_mutex_unlock(&bucket.mutex) == .SUCCESS); |
| 12205 | | |
| 12206 | | // Another pending check again to avoid the WaitQueue lookup if not necessary. |
| 12207 | | if (bucket.pending.load(.monotonic) > 0) { |
| 12208 | | notified = WaitQueue.remove(&bucket.treap, address, max_waiters); |
| 12209 | | } |
| 12210 | | } |
| 12211 | | }; |
| 12212 | | |
| 12213 | 12580 | fn scanEnviron(t: *Threaded) void { |
| 12214 | 12581 | t.mutex.lock(); |
| 12215 | 12582 | defer t.mutex.unlock(); |
| ... | ... | @@ -12328,3 +12695,459 @@ fn scanEnviron(t: *Threaded) void { |
| 12328 | 12695 | test { |
| 12329 | 12696 | _ = @import("Threaded/test.zig"); |
| 12330 | 12697 | } |
| 12698 | |
| 12699 | const use_parking_futex = switch (builtin.target.os.tag) { |
| 12700 | .windows => true, // RtlWaitOnAddress is a userland implementation anyway |
| 12701 | .netbsd => true, // NetBSD has `futex(2)`, but it's historically been quite buggy. TODO: evaluate whether it's okay to use now. |
| 12702 | .illumos => true, // Illumos has no futex mechanism |
| 12703 | else => false, |
| 12704 | }; |
| 12705 | const use_parking_sleep = switch (builtin.target.os.tag) { |
| 12706 | // On Windows, we can implement sleep either with `NtDelayExecution` (which is how `SleepEx` in |
| 12707 | // kernel32 works) or `NtWaitForAlertByThreadId` (thread parking). We're already using the |
| 12708 | // latter for futex, so we may as well use it for sleeping too, to maximise code reuse. I'm |
| 12709 | // also more confident that it will always correctly handle the cancelation race (so "unpark" |
| 12710 | // before "park" causes "park" to return immediately): it *seems* like alertable sleeps paired |
| 12711 | // with `NtAlertThread` do actually do this too, but there could be some caveat (e.g. it might |
| 12712 | // fail under some specific condition), whereas `NtWaitForAlertByThreadId` must reliably trigger |
| 12713 | // this behavior because `RtlWaitOnAddress` relies on it. |
| 12714 | .windows => true, |
| 12715 | |
| 12716 | // These targets have `_lwp_park`, which is superior to POSIX nanosleep because it has a better |
| 12717 | // cancelation mechanism. |
| 12718 | .netbsd, |
| 12719 | .illumos, |
| 12720 | => true, |
| 12721 | |
| 12722 | else => false, |
| 12723 | }; |
| 12724 | |
| 12725 | const parking_futex = struct { |
| 12726 | comptime { |
| 12727 | assert(use_parking_futex); |
| 12728 | } |
| 12729 | |
| 12730 | const Bucket = struct { |
| 12731 | /// Used as a fast check for `wake` to avoid having to acquire `mutex` to discover there are no |
| 12732 | /// waiters. It is important for `wait` to increment this *before* checking the futex value to |
| 12733 | /// avoid a race. |
| 12734 | num_waiters: std.atomic.Value(u32), |
| 12735 | /// Protects `waiters`. |
| 12736 | mutex: std.Thread.Mutex, |
| 12737 | waiters: std.DoublyLinkedList, |
| 12738 | |
| 12739 | /// Prevent false sharing between buckets. |
| 12740 | _: void align(std.atomic.cache_line) = {}, |
| 12741 | |
| 12742 | const init: Bucket = .{ .num_waiters = .init(0), .mutex = .{}, .waiters = .{} }; |
| 12743 | }; |
| 12744 | |
| 12745 | const Waiter = struct { |
| 12746 | node: std.DoublyLinkedList.Node, |
| 12747 | address: usize, |
| 12748 | tid: std.Thread.Id, |
| 12749 | /// `thread_status.cancelation` is `.parked` while the thread is waiting. The single thread |
| 12750 | /// which atomically updates it (to `.none` or `.canceling`) is responsible for: |
| 12751 | /// |
| 12752 | /// * Removing the `Waiter` from `Bucket.waiters` |
| 12753 | /// * Decrementing `Bucket.num_waiters` |
| 12754 | /// * Unparking the thread (*after* the above, so that the `Waiter` does not go out of scope |
| 12755 | /// while it is still in the `Bucket`). |
| 12756 | thread_status: *std.atomic.Value(Thread.Status), |
| 12757 | }; |
| 12758 | |
| 12759 | fn bucketForAddress(address: usize) *Bucket { |
| 12760 | const global = struct { |
| 12761 | /// Length must be a power of two. The longer this array, the less likely contention is |
| 12762 | /// between different futexes. This length seems like it'll provide a reasonable balance |
| 12763 | /// between contention and memory usage: assuming a 128-byte `Bucket` (due to cache line |
| 12764 | /// alignment), this uses 32 KiB of memory. |
| 12765 | var buckets: [256]Bucket = @splat(.init); |
| 12766 | }; |
| 12767 | |
| 12768 | // Here we use Fibonacci hashing: the golden ratio can be used to evenly redistribute input |
| 12769 | // values across a range, giving a poor, but extremely quick to compute, hash. |
| 12770 | |
| 12771 | // This literal is the rounded value of '2^64 / phi' (where 'phi' is the golden ratio). The |
| 12772 | // shift then converts it to '2^b / phi', where 'b' is the pointer bit width. |
| 12773 | const fibonacci_multiplier = 0x9E3779B97F4A7C15 >> (64 - @bitSizeOf(usize)); |
| 12774 | const hashed = address *% fibonacci_multiplier; |
| 12775 | |
| 12776 | comptime assert(std.math.isPowerOfTwo(global.buckets.len)); |
| 12777 | // The high bits of `hashed` have better entropy than the low bits. |
| 12778 | const index = hashed >> (@bitSizeOf(usize) - @ctz(global.buckets.len)); |
| 12779 | |
| 12780 | return &global.buckets[index]; |
| 12781 | } |
| 12782 | |
| 12783 | fn wait(ptr: *const u32, expect: u32, uncancelable: bool, timeout: Io.Timeout) Io.Cancelable!void { |
| 12784 | const bucket = bucketForAddress(@intFromPtr(ptr)); |
| 12785 | |
| 12786 | // Put the threadlocal access outside of the critical section. |
| 12787 | const opt_thread = Thread.current; |
| 12788 | const self_tid = if (opt_thread) |thread| thread.id else std.Thread.getCurrentId(); |
| 12789 | |
| 12790 | var waiter: Waiter = .{ |
| 12791 | .node = undefined, // populated by list append |
| 12792 | .address = @intFromPtr(ptr), |
| 12793 | .tid = self_tid, |
| 12794 | .thread_status = undefined, // populated in critical section |
| 12795 | }; |
| 12796 | |
| 12797 | var status_buf: std.atomic.Value(Thread.Status) = undefined; |
| 12798 | |
| 12799 | { |
| 12800 | bucket.mutex.lock(); |
| 12801 | defer bucket.mutex.unlock(); |
| 12802 | |
| 12803 | _ = bucket.num_waiters.fetchAdd(1, .acquire); |
| 12804 | |
| 12805 | if (@atomicLoad(u32, ptr, .monotonic) != expect) { |
| 12806 | assert(bucket.num_waiters.fetchSub(1, .monotonic) > 0); |
| 12807 | return; |
| 12808 | } |
| 12809 | |
| 12810 | // This is in the critical section to avoid marking the thread as parked until we're |
| 12811 | // certain that we're actually going to park. |
| 12812 | waiter.thread_status = status: { |
| 12813 | cancelable: { |
| 12814 | if (uncancelable) break :cancelable; |
| 12815 | const thread = opt_thread orelse break :cancelable; |
| 12816 | switch (thread.cancel_protection) { |
| 12817 | .blocked => break :cancelable, |
| 12818 | .unblocked => {}, |
| 12819 | } |
| 12820 | thread.futex_waiter = &waiter; |
| 12821 | const old_status = thread.status.fetchOr( |
| 12822 | .{ .cancelation = @enumFromInt(0b001), .awaitable = .null }, |
| 12823 | .release, // release `thread.futex_waiter` |
| 12824 | ); |
| 12825 | switch (old_status.cancelation) { |
| 12826 | .none => {}, // status is now `.parked` |
| 12827 | .canceling => { |
| 12828 | // status is now `.canceled` |
| 12829 | assert(bucket.num_waiters.fetchSub(1, .monotonic) > 0); |
| 12830 | return error.Canceled; |
| 12831 | }, |
| 12832 | .canceled => break :cancelable, // status is still `.canceled` |
| 12833 | .parked => unreachable, |
| 12834 | .blocked => unreachable, |
| 12835 | .blocked_windows_dns => unreachable, |
| 12836 | .blocked_canceling => unreachable, |
| 12837 | } |
| 12838 | // We could now be unparked for a cancelation at any time! |
| 12839 | break :status &thread.status; |
| 12840 | } |
| 12841 | // This is an uncancelable wait, so just use `status_buf`. Note that the value of |
| 12842 | // `status_buf.awaitable` is irrelevant because this is only visible to futex code, |
| 12843 | // while only cancelation cares about `awaitable`. |
| 12844 | status_buf.raw = .{ .cancelation = .parked, .awaitable = .null }; |
| 12845 | break :status &status_buf; |
| 12846 | }; |
| 12847 | |
| 12848 | bucket.waiters.append(&waiter.node); |
| 12849 | } |
| 12850 | |
| 12851 | if (park(timeout, ptr)) { |
| 12852 | // We were unparked by either `wake` or cancelation, so our current status is either |
| 12853 | // `.none` or `.canceling`. In either case, they've already removed `waiter` from |
| 12854 | // `bucket`, so we have nothing more to do! |
| 12855 | } else |err| switch (err) { |
| 12856 | error.Timeout => { |
| 12857 | // We're not out of the woods yet: an unpark could race with the timeout. |
| 12858 | const old_status = waiter.thread_status.fetchAnd( |
| 12859 | .{ .cancelation = @enumFromInt(0b110), .awaitable = .all_ones }, |
| 12860 | .monotonic, |
| 12861 | ); |
| 12862 | switch (old_status.cancelation) { |
| 12863 | .parked => { |
| 12864 | // No race. It is our responsibility to remove `waiter` from `bucket`. |
| 12865 | // New status is `.none`. |
| 12866 | bucket.mutex.lock(); |
| 12867 | defer bucket.mutex.unlock(); |
| 12868 | bucket.waiters.remove(&waiter.node); |
| 12869 | assert(bucket.num_waiters.fetchSub(1, .monotonic) > 0); |
| 12870 | }, |
| 12871 | .none, .canceling => { |
| 12872 | // Race condition: the timeout was reached, then `wake` or a canceler tried |
| 12873 | // to unpark us. Whoever did that will remove us from `bucket`. Wait for |
| 12874 | // that (and drop the unpark request in doing so). |
| 12875 | // New status is `.none` or `.canceling` respectively. |
| 12876 | park(.none, ptr) catch |e| switch (e) { |
| 12877 | error.Timeout => unreachable, |
| 12878 | }; |
| 12879 | }, |
| 12880 | .canceled => unreachable, |
| 12881 | .blocked => unreachable, |
| 12882 | .blocked_windows_dns => unreachable, |
| 12883 | .blocked_canceling => unreachable, |
| 12884 | } |
| 12885 | }, |
| 12886 | } |
| 12887 | } |
| 12888 | |
| 12889 | fn wake(ptr: *const u32, max_waiters: u32) void { |
| 12890 | if (max_waiters == 0) return; |
| 12891 | |
| 12892 | const bucket = bucketForAddress(@intFromPtr(ptr)); |
| 12893 | |
| 12894 | // To ensure the store to `ptr` is ordered before this check, we effectively want a `.release` |
| 12895 | // load, but that doesn't exist in the C11 memory model, so emulate it with a non-mutating rmw. |
| 12896 | if (bucket.num_waiters.fetchAdd(0, .release) == 0) { |
| 12897 | @branchHint(.likely); |
| 12898 | return; // no waiters |
| 12899 | } |
| 12900 | |
| 12901 | // Waiters removed from the linked list under the mutex so we can unpark their threads outside |
| 12902 | // of the critical section. This forms a singly-linked list of waiters using `Waiter.node.next`. |
| 12903 | var waking_head: ?*std.DoublyLinkedList.Node = null; |
| 12904 | { |
| 12905 | bucket.mutex.lock(); |
| 12906 | defer bucket.mutex.unlock(); |
| 12907 | |
| 12908 | var num_removed: u32 = 0; |
| 12909 | var it = bucket.waiters.first; |
| 12910 | while (num_removed < max_waiters) { |
| 12911 | const waiter: *Waiter = @fieldParentPtr("node", it orelse break); |
| 12912 | it = waiter.node.next; |
| 12913 | if (waiter.address != @intFromPtr(ptr)) continue; |
| 12914 | const old_status = waiter.thread_status.fetchAnd( |
| 12915 | .{ .cancelation = @enumFromInt(0b110), .awaitable = .all_ones }, |
| 12916 | .monotonic, |
| 12917 | ); |
| 12918 | switch (old_status.cancelation) { |
| 12919 | .parked => {}, // state updated to `.none` |
| 12920 | .none => unreachable, // if another `wake` call is unparking this thread, it should have removed it from the list |
| 12921 | .canceling => continue, // race with a canceler who hasn't called `removeCanceledWaiter` yet |
| 12922 | .canceled => unreachable, |
| 12923 | .blocked => unreachable, |
| 12924 | .blocked_windows_dns => unreachable, |
| 12925 | .blocked_canceling => unreachable, |
| 12926 | } |
| 12927 | // We're waking this waiter. Remove them from the bucket and add them to our local list. |
| 12928 | bucket.waiters.remove(&waiter.node); |
| 12929 | waiter.node.next = waking_head; |
| 12930 | waking_head = &waiter.node; |
| 12931 | num_removed += 1; |
| 12932 | // Signal to `waiter` that they're about to be unparked, in case we're racing with their |
| 12933 | // timeout. See corresponding logic in `wake`. |
| 12934 | waiter.address = 0; |
| 12935 | } |
| 12936 | |
| 12937 | _ = bucket.num_waiters.fetchSub(num_removed, .monotonic); |
| 12938 | } |
| 12939 | |
| 12940 | var unpark_buf: [128]UnparkTid = undefined; |
| 12941 | var unpark_len: usize = 0; |
| 12942 | |
| 12943 | // Finally, unpark the threads. |
| 12944 | while (waking_head) |node| { |
| 12945 | waking_head = node.next; |
| 12946 | const waiter: *Waiter = @fieldParentPtr("node", node); |
| 12947 | unpark_buf[unpark_len] = waiter.tid; |
| 12948 | unpark_len += 1; |
| 12949 | if (unpark_len == unpark_buf.len) { |
| 12950 | unpark(&unpark_buf, ptr); |
| 12951 | unpark_len = 0; |
| 12952 | } |
| 12953 | } |
| 12954 | if (unpark_len > 0) { |
| 12955 | unpark(unpark_buf[0..unpark_len], ptr); |
| 12956 | } |
| 12957 | } |
| 12958 | |
| 12959 | fn removeCanceledWaiter(waiter: *Waiter) void { |
| 12960 | const bucket = bucketForAddress(waiter.address); |
| 12961 | bucket.mutex.lock(); |
| 12962 | defer bucket.mutex.unlock(); |
| 12963 | bucket.waiters.remove(&waiter.node); |
| 12964 | assert(bucket.num_waiters.fetchSub(1, .monotonic) > 0); |
| 12965 | } |
| 12966 | }; |
| 12967 | const parking_sleep = struct { |
| 12968 | comptime { |
| 12969 | assert(use_parking_sleep); |
| 12970 | } |
| 12971 | fn sleep(timeout: Io.Timeout) Io.Cancelable!void { |
| 12972 | const opt_thread = Thread.current; |
| 12973 | cancelable: { |
| 12974 | const thread = opt_thread orelse break :cancelable; |
| 12975 | switch (thread.cancel_protection) { |
| 12976 | .blocked => break :cancelable, |
| 12977 | .unblocked => {}, |
| 12978 | } |
| 12979 | thread.futex_waiter = null; |
| 12980 | { |
| 12981 | const old_status = thread.status.fetchOr( |
| 12982 | .{ .cancelation = @enumFromInt(0b001), .awaitable = .null }, |
| 12983 | .release, // release `thread.futex_waiter` |
| 12984 | ); |
| 12985 | switch (old_status.cancelation) { |
| 12986 | .none => {}, // status is now `.parked` |
| 12987 | .canceling => return error.Canceled, // status is now `.canceled` |
| 12988 | .canceled => break :cancelable, // status is still `.canceled` |
| 12989 | .parked => unreachable, |
| 12990 | .blocked => unreachable, |
| 12991 | .blocked_windows_dns => unreachable, |
| 12992 | .blocked_canceling => unreachable, |
| 12993 | } |
| 12994 | } |
| 12995 | if (park(timeout, null)) { |
| 12996 | // The only reason this could possibly happen is cancelation. |
| 12997 | const old_status = thread.status.load(.monotonic); |
| 12998 | assert(old_status.cancelation == .canceling); |
| 12999 | thread.status.store( |
| 13000 | .{ .cancelation = .canceled, .awaitable = old_status.awaitable }, |
| 13001 | .monotonic, |
| 13002 | ); |
| 13003 | return error.Canceled; |
| 13004 | } else |err| switch (err) { |
| 13005 | error.Timeout => { |
| 13006 | // We're not out of the woods yet: an unpark could race with the timeout. |
| 13007 | const old_status = thread.status.fetchAnd( |
| 13008 | .{ .cancelation = @enumFromInt(0b110), .awaitable = .all_ones }, |
| 13009 | .monotonic, |
| 13010 | ); |
| 13011 | switch (old_status.cancelation) { |
| 13012 | .parked => return, // No race; new status is `.none` |
| 13013 | .canceling => { |
| 13014 | // Race condition: the timeout was reached, then someone tried to unpark |
| 13015 | // us for a cancelation. Whoever did that will have called `unpark`, so |
| 13016 | // drop that unpark request by waiting for it. |
| 13017 | // Status is still `.canceling`. |
| 13018 | park(.none, null) catch |e| switch (e) { |
| 13019 | error.Timeout => unreachable, |
| 13020 | }; |
| 13021 | return; |
| 13022 | }, |
| 13023 | .none => unreachable, |
| 13024 | .canceled => unreachable, |
| 13025 | .blocked => unreachable, |
| 13026 | .blocked_windows_dns => unreachable, |
| 13027 | .blocked_canceling => unreachable, |
| 13028 | } |
| 13029 | }, |
| 13030 | } |
| 13031 | } |
| 13032 | // Uncancelable sleep; we expect not to be manually unparked. |
| 13033 | if (park(timeout, null)) { |
| 13034 | unreachable; // unexpected unpark |
| 13035 | } else |err| switch (err) { |
| 13036 | error.Timeout => return, |
| 13037 | } |
| 13038 | } |
| 13039 | }; |
| 13040 | |
| 13041 | /// `addr_hint` has no semantic effect, but may allow the OS to optimize this operation. |
| 13042 | fn park(timeout: Io.Timeout, addr_hint: ?*const anyopaque) error{Timeout}!void { |
| 13043 | comptime assert(use_parking_futex or use_parking_sleep); |
| 13044 | switch (builtin.target.os.tag) { |
| 13045 | .windows => { |
| 13046 | var timeout_buf: windows.LARGE_INTEGER = undefined; |
| 13047 | const raw_timeout: ?*windows.LARGE_INTEGER = timeout: switch (timeout) { |
| 13048 | .none => null, |
| 13049 | .deadline => |timestamp| continue :timeout .{ .duration = .{ |
| 13050 | .clock = timestamp.clock, |
| 13051 | .raw = (nowWindows(timestamp.clock) catch unreachable).durationTo(timestamp.raw), |
| 13052 | } }, |
| 13053 | .duration => |duration| { |
| 13054 | _ = duration.clock; // Windows only supports monotonic |
| 13055 | timeout_buf = @intCast(@divTrunc(-duration.raw.nanoseconds, 100)); |
| 13056 | break :timeout &timeout_buf; |
| 13057 | }, |
| 13058 | }; |
| 13059 | // `RtlWaitOnAddress` passes the futex address in as the first argument to this call, |
| 13060 | // but it's unclear what that actually does, especially since `NtAlertThreadByThreadId` |
| 13061 | // does *not* accept the address so the kernel can't really be using it as a hint. An |
| 13062 | // old Microsoft blog post discusses a more traditional futex-like mechanism in the |
| 13063 | // kernel which definitely isn't how `RtlWaitOnAddress` works today: |
| 13064 | // |
| 13065 | // https://devblogs.microsoft.com/oldnewthing/20160826-00/?p=94185 |
| 13066 | // |
| 13067 | // ...so it's possible this argument is simply a remnant which no longer does anything |
| 13068 | // (perhaps the implementation changed during development but someone forgot to remove |
| 13069 | // this parameter). However, to err on the side of caution, let's match the behavior of |
| 13070 | // `RtlWaitOnAddress` and pass the pointer, in case the kernel ever does something |
| 13071 | // stupid such as trying to dereference it. |
| 13072 | switch (windows.ntdll.NtWaitForAlertByThreadId(addr_hint, raw_timeout)) { |
| 13073 | .ALERTED => return, |
| 13074 | .TIMEOUT => return error.Timeout, |
| 13075 | else => unreachable, |
| 13076 | } |
| 13077 | }, |
| 13078 | .netbsd => { |
| 13079 | var ts_buf: posix.timespec = undefined; |
| 13080 | const ts: ?*posix.timespec, const abstime: bool, const clock_real: bool = switch (timeout) { |
| 13081 | .none => .{ null, false, false }, |
| 13082 | .deadline => |timestamp| timeout: { |
| 13083 | ts_buf = timestampToPosix(timestamp.raw.nanoseconds); |
| 13084 | break :timeout .{ &ts_buf, true, timestamp.clock == .real }; |
| 13085 | }, |
| 13086 | .duration => |duration| timeout: { |
| 13087 | ts_buf = timestampToPosix(duration.raw.nanoseconds); |
| 13088 | break :timeout .{ &ts_buf, false, duration.clock == .real }; |
| 13089 | }, |
| 13090 | }; |
| 13091 | switch (posix.errno(std.c._lwp_park( |
| 13092 | if (clock_real) .REALTIME else .MONOTONIC, |
| 13093 | .{ .ABSTIME = abstime }, |
| 13094 | ts, |
| 13095 | 0, |
| 13096 | addr_hint, |
| 13097 | null, |
| 13098 | ))) { |
| 13099 | .SUCCESS, .ALREADY, .INTR => return, |
| 13100 | .TIMEDOUT => return error.Timeout, |
| 13101 | .INVAL => unreachable, |
| 13102 | .SRCH => unreachable, |
| 13103 | else => unreachable, |
| 13104 | } |
| 13105 | }, |
| 13106 | .illumos => @panic("TODO: illumos lwp_park"), |
| 13107 | else => comptime unreachable, |
| 13108 | } |
| 13109 | } |
| 13110 | |
| 13111 | const UnparkTid = switch (builtin.target.os.tag) { |
| 13112 | // `NtAlertMultipleThreadByThreadId` is weird and wants 64-bit thread handles? |
| 13113 | .windows => usize, |
| 13114 | else => std.Thread.Id, |
| 13115 | }; |
| 13116 | /// `addr_hint` has no semantic effect, but may allow the OS to optimize this operation. |
| 13117 | fn unpark(tids: []const UnparkTid, addr_hint: ?*const anyopaque) void { |
| 13118 | comptime assert(use_parking_futex or use_parking_sleep); |
| 13119 | switch (builtin.target.os.tag) { |
| 13120 | .windows => { |
| 13121 | // TODO: this condition is currently disabled because mingw-w64 does not contain this |
| 13122 | // symbol. Once it's added, enable this check to use the new bulk API where possible. |
| 13123 | if (false and (builtin.os.version_range.windows.isAtLeast(.win11_dt) orelse false)) { |
| 13124 | _ = windows.ntdll.NtAlertMultipleThreadByThreadId(tids.ptr, @intCast(tids.len), null, null); |
| 13125 | } else { |
| 13126 | for (tids) |tid| { |
| 13127 | _ = windows.ntdll.NtAlertThreadByThreadId(@intCast(tid)); |
| 13128 | } |
| 13129 | } |
| 13130 | }, |
| 13131 | .netbsd => { |
| 13132 | switch (posix.errno(std.c._lwp_unpark_all(@ptrCast(tids.ptr), tids.len, addr_hint))) { |
| 13133 | .SUCCESS => return, |
| 13134 | // For errors, fall through to a loop over `tids`, though this is only expected to |
| 13135 | // be possible for ENOMEM (and even that is questionable). |
| 13136 | .SRCH => recoverableOsBugDetected(), |
| 13137 | .FAULT => recoverableOsBugDetected(), |
| 13138 | .INVAL => recoverableOsBugDetected(), |
| 13139 | .NOMEM => {}, |
| 13140 | else => recoverableOsBugDetected(), |
| 13141 | } |
| 13142 | for (tids) |tid| { |
| 13143 | switch (posix.errno(std.c._lwp_unpark(@bitCast(tid), addr_hint))) { |
| 13144 | .SUCCESS => {}, |
| 13145 | .SRCH => recoverableOsBugDetected(), |
| 13146 | else => recoverableOsBugDetected(), |
| 13147 | } |
| 13148 | } |
| 13149 | }, |
| 13150 | .illumos => @panic("TODO: illumos lwp_unpark"), |
| 13151 | else => comptime unreachable, |
| 13152 | } |
| 13153 | } |
Matthew Lugg <mlugg@mlugg.co.uk> 2026-01-03 21:33:46+01:00
lib