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PTHREAD_COND_TIMEDWAI... BSD Library Functions Manual PTHREAD_COND_TIMEDWAI... NAME pthread_cond_timedwait -- wait on a condition variable for a specific amount of time SYNOPSIS #include <pthread.h> int pthread_cond_timedwait(pthread_cond_t *restrict cond, pthread_mutex_t *restrict mutex, const struct timespec *restrict abstime); DESCRIPTION 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. RETURN VALUES If successful, the pthread_cond_timedwait() function will return zero. Otherwise, an error number will be returned to indicate the error. ERRORS pthread_cond_timedwait() will fail if: [EINVAL] The value specified by cond, mutex or abstime is invalid. [ETIMEDOUT] The system time has reached or exceeded the time spec-ified specified ified in abstime. SEE ALSO pthread_cond_broadcast(3), pthread_cond_destroy(3), pthread_cond_init(3), pthread_cond_signal(3), pthread_cond_wait(3) STANDARDS pthread_cond_timedwait() conforms to ISO/IEC 9945-1:1996 (``POSIX.1''). BSD July 28, 1998 BSD |