1 .\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
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31 .Dt PTHREAD_COND_SIGNAL 3
34 .Nm pthread_cond_signal
35 .Nd unblock a thread waiting for a condition variable
39 .Fn pthread_cond_signal "pthread_cond_t *cond"
42 .Fn pthread_cond_signal
43 function unblocks one thread waiting for the condition variable
47 .Fn pthread_cond_signal
48 function will return zero, otherwise an error number will be returned
49 to indicate the error.
52 .Fn pthread_cond_signal
53 function will fail if:
56 The value specified by
61 .Xr pthread_cond_broadcast 3 ,
62 .Xr pthread_cond_destroy 3 ,
63 .Xr pthread_cond_init 3 ,
64 .Xr pthread_cond_timedwait 3 ,
65 .Xr pthread_cond_wait 3
68 .Fn pthread_cond_signal