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author | Takashi Yano <takashi.yano@nifty.ne.jp> | 2024-01-24 22:33:12 +0900 |
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committer | Takashi Yano <takashi.yano@nifty.ne.jp> | 2024-01-24 22:42:49 +0900 |
commit | 2c5433e5da8216aaf7458e50c63683c68fb0d3e8 (patch) | |
tree | 67d7bcaafbdaca3d06ca1db489d3ea8496208477 /winsup | |
parent | 15140d6df667a71e660dc9da9ca9071fa3c5dbbd (diff) | |
download | newlib-2c5433e5da8216aaf7458e50c63683c68fb0d3e8.zip newlib-2c5433e5da8216aaf7458e50c63683c68fb0d3e8.tar.gz newlib-2c5433e5da8216aaf7458e50c63683c68fb0d3e8.tar.bz2 |
Cygwin: pthread: Fix handle leak in pthread_once.
If pthread_once() is called with pthread_once_t initialized using
PTREAD_ONCE_INIT, pthread_once does not release pthread_mutex used
internally. This patch fixes that by calling pthread_mutex_destroy()
in the thread which has called init_routine.
Reviewed-by: Corinna Vinschen <corinna@vinschen.de>
Signed-off-by: Takashi Yano <takashi.yano@nifty.ne.jp>
Diffstat (limited to 'winsup')
-rw-r--r-- | winsup/cygwin/thread.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/winsup/cygwin/thread.cc b/winsup/cygwin/thread.cc index 7bb4f9f..0f83278 100644 --- a/winsup/cygwin/thread.cc +++ b/winsup/cygwin/thread.cc @@ -2060,6 +2060,9 @@ pthread::once (pthread_once_t *once_control, void (*init_routine) (void)) { init_routine (); once_control->state = 1; + pthread_mutex_unlock (&once_control->mutex); + while (pthread_mutex_destroy (&once_control->mutex) == EBUSY); + return 0; } /* Here we must remove our cancellation handler */ pthread_mutex_unlock (&once_control->mutex); |