authorgravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2025-10-27 22:16:03-07:00
committergravatar for andrew@ziglang.orgAndrew Kelley <andrew@ziglang.org> 2025-10-29 06:20:52-07:00
log94b987498185af7af38f424964266daac6533ec3
treeec26d6373c8e4c538a41324ff625597578dab188
parentc0c20105354f05a354bf28fd5c05c19e7723b2a7

std.Io.Threaded: stub out netbsd mutex and condition

1 files changed, 6 insertions(+), 0 deletions(-)

lib/std/Io/Threaded.zig+6
......@@ -798,6 +798,7 @@ fn checkCancel(t: *Threaded) error{Canceled}!void {
798798
799799fn mutexLock(userdata: ?*anyopaque, prev_state: Io.Mutex.State, mutex: *Io.Mutex) Io.Cancelable!void {
800800 if (builtin.single_threaded) unreachable; // Interface should have prevented this.
801 if (native_os == .netbsd) @panic("TODO");
801802 const t: *Threaded = @ptrCast(@alignCast(userdata));
802803 if (prev_state == .contended) {
803804 try futexWait(t, @ptrCast(&mutex.state), @intFromEnum(Io.Mutex.State.contended));
......@@ -809,6 +810,7 @@ fn mutexLock(userdata: ?*anyopaque, prev_state: Io.Mutex.State, mutex: *Io.Mutex
809810
810811fn mutexLockUncancelable(userdata: ?*anyopaque, prev_state: Io.Mutex.State, mutex: *Io.Mutex) void {
811812 if (builtin.single_threaded) unreachable; // Interface should have prevented this.
813 if (native_os == .netbsd) @panic("TODO");
812814 _ = userdata;
813815 if (prev_state == .contended) {
814816 futexWaitUncancelable(@ptrCast(&mutex.state), @intFromEnum(Io.Mutex.State.contended));
......@@ -820,6 +822,7 @@ fn mutexLockUncancelable(userdata: ?*anyopaque, prev_state: Io.Mutex.State, mute
820822
821823fn mutexUnlock(userdata: ?*anyopaque, prev_state: Io.Mutex.State, mutex: *Io.Mutex) void {
822824 if (builtin.single_threaded) unreachable; // Interface should have prevented this.
825 if (native_os == .netbsd) @panic("TODO");
823826 _ = userdata;
824827 _ = prev_state;
825828 if (@atomicRmw(Io.Mutex.State, &mutex.state, .Xchg, .unlocked, .release) == .contended) {
......@@ -829,6 +832,7 @@ fn mutexUnlock(userdata: ?*anyopaque, prev_state: Io.Mutex.State, mutex: *Io.Mut
829832
830833fn conditionWaitUncancelable(userdata: ?*anyopaque, cond: *Io.Condition, mutex: *Io.Mutex) void {
831834 if (builtin.single_threaded) unreachable; // Deadlock.
835 if (native_os == .netbsd) @panic("TODO");
832836 const t: *Threaded = @ptrCast(@alignCast(userdata));
833837 const t_io = ioBasic(t);
834838 comptime assert(@TypeOf(cond.state) == u64);
......@@ -860,6 +864,7 @@ fn conditionWaitUncancelable(userdata: ?*anyopaque, cond: *Io.Condition, mutex:
860864
861865fn conditionWait(userdata: ?*anyopaque, cond: *Io.Condition, mutex: *Io.Mutex) Io.Cancelable!void {
862866 if (builtin.single_threaded) unreachable; // Deadlock.
867 if (native_os == .netbsd) @panic("TODO");
863868 const t: *Threaded = @ptrCast(@alignCast(userdata));
864869 const t_io = ioBasic(t);
865870 comptime assert(@TypeOf(cond.state) == u64);
......@@ -960,6 +965,7 @@ fn conditionWake(userdata: ?*anyopaque, cond: *Io.Condition, wake: Io.Condition.
960965 // - T2: UPDATE(&state, signal) + FUTEX_WAKE(&epoch)
961966 // - T1: s & signals == 0 -> FUTEX_WAIT(&epoch, e) (missed both epoch change and state change)
962967 _ = cond_epoch.fetchAdd(1, .release);
968 if (native_os == .netbsd) @panic("TODO");
963969 futexWake(cond_epoch, to_wake);
964970 return;
965971 };