diff options
Diffstat (limited to 'nptl/threads.h')
| -rw-r--r-- | nptl/threads.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/nptl/threads.h b/nptl/threads.h index 32f7cf8f75..e46b1b7f32 100644 --- a/nptl/threads.h +++ b/nptl/threads.h @@ -60,6 +60,12 @@ typedef union long int __align __LOCK_ALIGNMENT; } mtx_t; +typedef union +{ + char __size[__SIZEOF_PTHREAD_COND_T]; + __extension__ long long int __align __LOCK_ALIGNMENT; +} cnd_t; + /* Threads functions. */ /* Create a new thread executing the function __FUNC. Arguments for __FUNC @@ -140,6 +146,34 @@ extern void mtx_destroy (mtx_t *__mutex); All calls must be made with the same __FLAGS object. */ extern void call_once (once_flag *__flag, void (*__func)(void)); + +/* Condition variable functions. */ + +/* Initialize new condition variable pointed by __COND. */ +extern int cnd_init (cnd_t *__cond); + +/* Unblock one thread that currently waits on condition variable pointed + by __COND. */ +extern int cnd_signal (cnd_t *__cond); + +/* Unblock all threads currently waiting on condition variable pointed by + __COND. */ +extern int cnd_broadcast (cnd_t *__cond); + +/* Block current thread on the condition variable pointed by __COND. */ +extern int cnd_wait (cnd_t *__cond, mtx_t *__mutex); + +/* Block current thread on the condition variable until condition variable + pointed by __COND is signaled or time pointed by __TIME_POINT is + reached. */ +extern int cnd_timedwait (cnd_t *__restrict __cond, + mtx_t *__restrict __mutex, + const struct timespec *__restrict __time_point); + +/* Destroy condition variable pointed by __cond and free all of its + resources. */ +extern void cnd_destroy (cnd_t *__COND); + __END_DECLS #endif /* _THREADS_H */ |