iOS Manual Pages

This document is a Mac OS X manual page. Manual pages are a command-line technology for providing documentation. You can view these manual pages locally using the man(1) command. These manual pages come from many different sources, and thus, have a variety of writing styles.

For more information about the manual page format, see the manual page for manpages(5).

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 argument
     and waits on the cond argument.

RETURN VALUES
     If successful, the pthread_cond_wait() function will return zero.  Other-wise, Otherwise,
     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