pthread_cond_wait man page on MacOSX

pthread_cond_wait man page on MacOSX

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PTHREAD_COND_WAIT(3)	 BSD 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 *restrict cond,
	 pthread_mutex_t *restrict mutex);

DESCRIPTION
     The pthread_cond_wait() function atomically unlocks the mutex and blocks
     the current thread on the condition specified by the cond argument.  The
     current thread unblocks only after another thread calls
     pthread_cond_signal(3) or pthread_cond_broadcast(3) with the same condi‐
     tion variable.  The mutex must be locked before calling this function,
     otherwise the behavior is undefined. Before pthread_cond_wait() returns
     to the calling function, it re-acquires the mutex.

RETURN VALUES
     If successful, the pthread_cond_wait() function will return zero; other‐
     wise, 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”).

Darwin			       November 5, 2001				Darwin

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