GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libc/thread/rthread_once.c Lines: 0 6 0.0 %
Date: 2017-11-13 Branches: 0 2 0.0 %

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/*	$OpenBSD: rthread_once.c,v 1.3 2017/11/04 22:53:57 jca Exp $ */
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/*
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 * Copyright (c) 2004,2005 Ted Unangst <tedu@openbsd.org>
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 * All Rights Reserved.
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * 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 WARRANTIES
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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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 */
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#include <pthread.h>
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int
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pthread_once(pthread_once_t *once_control, void (*init_routine)(void))
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{
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	pthread_mutex_lock(&once_control->mutex);
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	if (once_control->state == PTHREAD_NEEDS_INIT) {
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		init_routine();
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		once_control->state = PTHREAD_DONE_INIT;
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	}
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	pthread_mutex_unlock(&once_control->mutex);
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	return (0);
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}