diff options
Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/sem_wait.c')
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/sem_wait.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/sem_wait.c b/nptl/sysdeps/unix/sysv/linux/sem_wait.c index 1d39b7c408..36bb158e09 100644 --- a/nptl/sysdeps/unix/sysv/linux/sem_wait.c +++ b/nptl/sysdeps/unix/sysv/linux/sem_wait.c @@ -24,12 +24,16 @@ #include <internaltypes.h> #include <semaphore.h> +#include <pthreadP.h> #include <shlib-compat.h> int __new_sem_wait (sem_t *sem) { + /* First check for cancellation. */ + CANCELLATION_P (THREAD_SELF); + int *futex = (int *) sem; int val; int err; @@ -43,7 +47,13 @@ __new_sem_wait (sem_t *sem) return 0; } + /* Enable asynchronous cancellation. Required by the standard. */ + int oldtype = __pthread_enable_asynccancel (); + err = lll_futex_wait (futex, 0); + + /* Disable asynchronous cancellation. */ + __pthread_disable_asynccancel (oldtype); } while (err == 0 || err == -EWOULDBLOCK); |