70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/*
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* Copyright (c) 2005 David Xu <davidxu@freebsd.org>
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* Copyright (C) 2003 Daniel M. Eischen <deischen@freebsd.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*
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*/
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#include <sys/types.h>
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#include <errno.h>
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#include <pthread.h>
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#include "thr_private.h"
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__weak_reference(_pthread_detach, pthread_detach);
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int
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_pthread_detach(pthread_t pthread)
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{
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struct pthread *curthread = _get_curthread();
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int rval;
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if (pthread == NULL)
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return (EINVAL);
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THREAD_LIST_LOCK(curthread);
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if ((rval = _thr_find_thread(curthread, pthread,
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/*include dead*/1)) != 0) {
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THREAD_LIST_UNLOCK(curthread);
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return (rval);
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}
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/* Check if the thread is already detached or has a joiner. */
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if ((pthread->tlflags & TLFLAGS_DETACHED) != 0 ||
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(pthread->joiner != NULL)) {
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THREAD_LIST_UNLOCK(curthread);
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return (EINVAL);
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}
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/* Flag the thread as detached. */
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pthread->tlflags |= TLFLAGS_DETACHED;
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if (pthread->state == PS_DEAD)
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THR_GCLIST_ADD(pthread);
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THREAD_LIST_UNLOCK(curthread);
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return (0);
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}
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