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Command: pthread_cond_wait | Section: 3 | Source: OpenBSD | File: pthread_cond_wait.3
PTHREAD_COND_WAIT(3) FreeBSD Library Functions Manual PTHREAD_COND_WAIT(3)
NAME
pthread_cond_wait - wait on a condition variable
SYNOPSIS
#include <pthread.h>
int
pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
DESCRIPTION
The pthread_cond_wait() 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, and the current thread reacquires the lock
on mutex.
RETURN VALUES
If successful, the pthread_cond_wait() function will return zero.
Otherwise an error number will be returned to indicate the error.
ERRORS
pthread_cond_wait() will fail if:
[EINVAL] The value specified by cond or the value specified by
mutex is invalid.
SEE ALSO
pthread_cond_broadcast(3), pthread_cond_destroy(3), pthread_cond_init(3),
pthread_cond_signal(3), pthread_cond_timedwait(3)
STANDARDS
pthread_cond_wait() conforms to ISO/IEC 9945-1:1996 ("POSIX.1").
FreeBSD 14.1-RELEASE-p8 June 5, 2013 FreeBSD 14.1-RELEASE-p8