pthread_cond_wait(3) [osx man page]

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 condition vari-
     able.  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; 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'').

Darwin								 November 5, 2001							    Darwin

PTHREAD_COND_WAIT(3)					   BSD Library Functions Manual 				      PTHREAD_COND_WAIT(3)

NAME

     pthread_cond_wait -- wait on a condition variable

LIBRARY

     POSIX Threads Library (libpthread, -lpthread)

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 releases 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

     The pthread_cond_wait() function will fail if:

     [EINVAL]		The value specified by cond or the value specified by mutex is invalid.

     [EPERM]		The specified mutex was not locked by the calling thread.

SEE ALSO

     pthread_cond_broadcast(3), pthread_cond_destroy(3), pthread_cond_init(3), pthread_cond_signal(3), pthread_cond_timedwait(3)

STANDARDS

     The pthread_cond_wait() function conforms to ISO/IEC 9945-1:1996 (``POSIX.1'').

BSD
								 February 16, 2006							       BSD