diff options
Diffstat (limited to 'lib/libpthread/thread/thr_sem.c')
| -rw-r--r-- | lib/libpthread/thread/thr_sem.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/libpthread/thread/thr_sem.c b/lib/libpthread/thread/thr_sem.c index 10dec5e..5a4757c 100644 --- a/lib/libpthread/thread/thr_sem.c +++ b/lib/libpthread/thread/thr_sem.c @@ -206,6 +206,12 @@ sem_post(sem_t *sem) _SEM_CHECK_VALIDITY(sem); + /* + * sem_post() is required to be safe to call from within signal + * handlers. Thus, we must defer signals. + */ + _thread_kern_sig_defer(); + pthread_mutex_lock(&(*sem)->lock); (*sem)->count++; @@ -221,6 +227,7 @@ sem_post(sem_t *sem) pthread_mutex_unlock(&(*sem)->lock); + _thread_kern_sig_defer(); retval = 0; RETURN: return retval; |
