From 79be6b7ffe6170cd6560637c2eaed0bc8dc96354 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Thu, 22 Jan 2026 16:54:32 -0800
Subject: [PATCH] std.Io.Threaded: handle some more error codes from NtReadFile

---
 lib/std/Io/Threaded.zig | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/lib/std/Io/Threaded.zig b/lib/std/Io/Threaded.zig
index d7b8b71c110c85a7d63717d5d0c82d1c48bcb6a5..ff2e0436ccd34f418c3c859bd76c3faa39d8f719 100644
--- a/lib/std/Io/Threaded.zig
+++ b/lib/std/Io/Threaded.zig
@@ -8245,12 +8245,15 @@ fn fileReadStreamingWindows(file: File, data: []const []u8) File.Reader.Error!us
                 null, // byte offset
                 null, // key
             )) {
-                .SUCCESS => break :read syscall.finish(),
+                .SUCCESS, .END_OF_FILE, .PIPE_BROKEN => break :read syscall.finish(),
                 .PENDING => break,
                 .CANCELLED => {
                     try syscall.checkCancel();
                     continue;
                 },
+                .INVALID_DEVICE_REQUEST => return syscall.fail(error.IsDir),
+                .LOCK_NOT_GRANTED => return syscall.fail(error.LockViolation),
+                .ACCESS_DENIED => return syscall.fail(error.AccessDenied),
                 .INVALID_PARAMETER => |err| return syscall.ntstatusBug(err), // streaming read of async mode file
                 else => |status| return syscall.unexpectedNtstatus(status),
             }
@@ -8281,6 +8284,8 @@ fn fileReadStreamingWindows(file: File, data: []const []u8) File.Reader.Error!us
 
     switch (io_status_block.u.Status) {
         .SUCCESS, .END_OF_FILE, .PIPE_BROKEN => {},
+        .INVALID_DEVICE_REQUEST => return error.IsDir,
+        .LOCK_NOT_GRANTED => return error.LockViolation,
         .ACCESS_DENIED => return error.AccessDenied,
         else => |status| return windows.unexpectedStatus(status),
     }
-- 
2.54.0