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42 lines
2.4 KiB
C
42 lines
2.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2022 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/thread/thread.h"
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#include "third_party/nsync/cv.h"
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/**
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* Wakes all threads waiting on condition, e.g.
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*
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* pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
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* pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
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* // ...
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* pthread_mutex_lock(&lock);
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* pthread_cond_broadcast(&cond);
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* pthread_mutex_unlock(&lock);
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*
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* This function has no effect if there aren't any threads currently
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* waiting on the condition.
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*
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* @return 0 on success, or errno on error
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* @see pthread_cond_signal
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* @see pthread_cond_wait
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*/
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errno_t pthread_cond_broadcast(pthread_cond_t *cond) {
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nsync_cv_broadcast((nsync_cv *)cond);
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return 0;
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}
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