PTHREAD_COND_TIMEDWAIT(3) | Library Functions Manual | PTHREAD_COND_TIMEDWAIT(3) |
pthread_cond_timedwait
—
wait on a condition variable for a specific amount of
time
#include
<pthread.h>
int
pthread_cond_timedwait
(pthread_cond_t
*cond, pthread_mutex_t
*mutex, const struct
timespec *abstime);
The
pthread_cond_timedwait
()
function atomically blocks the current thread waiting on the condition
variable specified by cond, and unblocks the mutex
specified by mutex. The waiting thread unblocks only
after another thread calls
pthread_cond_signal(3), or
pthread_cond_broadcast(3)
with the same condition variable, or if the system time reaches the time
specified in abstime, and the current thread
reacquires the lock on mutex.
If successful, the
pthread_cond_timedwait
() function will return zero.
Otherwise an error number will be returned to indicate the error.
pthread_cond_timedwait
() will fail if:
pthread_cond_broadcast(3), pthread_cond_destroy(3), pthread_cond_init(3), pthread_cond_signal(3), pthread_cond_wait(3)
pthread_cond_timedwait
() conforms to
ISO/IEC 9945-1:1996 (“POSIX.1”).
August 14, 2013 | OpenBSD-current |