diff options
| author |   otto <otto@openbsd.org> | 2006-02-22 07:16:31 +0000 |
|---|---|---|
| committer | otto <otto@openbsd.org> | 2006-02-22 07:16:31 +0000 |
| commit | 882a3f0680aa778b013f4c220223d00b28019a86 (patch) | |
| tree | 0862b8b2a97ace2964bdca1d67de26262731407e /lib/libpthread/thread/thread_malloc_lock.c | |
| parent | Expect PMU_INT_SNDBRT while resetting the adb bus; although this brings the (diff) | |
| download | wireguard-openbsd-882a3f0680aa778b013f4c220223d00b28019a86.tar.xz wireguard-openbsd-882a3f0680aa778b013f4c220223d00b28019a86.zip | |
Avouid a race in atexit() handling by introducing a lock. Problem
originally reported by Gergely Kovacs; help from dhartmei@;
ok tedu@ millert@
Diffstat (limited to 'lib/libpthread/thread/thread_malloc_lock.c')
| -rw-r--r-- | lib/libpthread/thread/thread_malloc_lock.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/lib/libpthread/thread/thread_malloc_lock.c b/lib/libpthread/thread/thread_malloc_lock.c index 8755b1dad27..6e8b96bb656 100644 --- a/lib/libpthread/thread/thread_malloc_lock.c +++ b/lib/libpthread/thread/thread_malloc_lock.c @@ -1,10 +1,11 @@ -/* $OpenBSD: thread_malloc_lock.c,v 1.4 2002/11/05 22:19:55 marc Exp $ */ +/* $OpenBSD: thread_malloc_lock.c,v 1.5 2006/02/22 07:16:32 otto Exp $ */ /* Public Domain <marc@snafu.org> */ #include <pthread.h> #include "pthread_private.h" static spinlock_t malloc_lock = _SPINLOCK_INITIALIZER; +static spinlock_t atexit_lock = _SPINLOCK_INITIALIZER; void _thread_malloc_lock() @@ -22,3 +23,15 @@ void _thread_malloc_init() { } + +void +_thread_atexit_lock() +{ + _SPINLOCK(&atexit_lock); +} + +void +_thread_atexit_unlock() +{ + _SPINUNLOCK(&atexit_lock); +} |