zig

commit 78c4fcfcd89e80ef70cf4cbb13f5100c84432496 (tree)
parent 3c2f5adf41f0e75fd5e8f6661891dd7d4fa770a9
Author: Andrew Kelley <andrew@ziglang.org>
Date:   Mon, 22 Dec 2025 15:13:48 -0800

std.debug.lockStderr: cancel protection rather than recancel

because we need to return the value

Diffstat:
M
lib/std/debug.zig
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/lib/std/debug.zig b/lib/std/debug.zig
@@ -281,8 +281,10 @@ pub const sys_can_stack_trace = switch (builtin.cpu.arch) {
 /// application's chosen `Io` implementation.
 pub fn lockStderr(buffer: []u8) Io.LockedStderr {
     const io = std.options.debug_io;
+    const prev = io.swapCancelProtection(.blocked);
+    defer _ = io.swapCancelProtection(prev);
     return io.lockStderr(buffer, null) catch |err| switch (err) {
-        error.Canceled => io.recancel(),
+        error.Canceled => unreachable, // Cancel protection enabled above.
     };
 }