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[AIX] expect EINVAL for pthread_mutex_destroy #136908

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Feb 14, 2025
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[AIX] expect EINVAL for pthread_mutex_destroy #136908

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6 changes: 3 additions & 3 deletions library/std/src/sys/pal/unix/sync/mutex.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -111,9 +111,9 @@ impl Drop for Mutex {
// `PTHREAD_MUTEX_INITIALIZER`, which is valid at all locations. Thus,
// this call always destroys a valid mutex.
let r = unsafe { libc::pthread_mutex_destroy(self.raw()) };
if cfg!(target_os = "dragonfly") {
// On DragonFly pthread_mutex_destroy() returns EINVAL if called on a
// mutex that was just initialized with libc::PTHREAD_MUTEX_INITIALIZER.
if cfg!(any(target_os = "aix", target_os = "dragonfly")) {
// On AIX and DragonFly pthread_mutex_destroy() returns EINVAL if called
// on a mutex that was just initialized with libc::PTHREAD_MUTEX_INITIALIZER.
// Once it is used (locked/unlocked) or pthread_mutex_init() is called,
// this behaviour no longer occurs.
debug_assert!(r == 0 || r == libc::EINVAL);
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