2 * Copyright (c) 1995 John Birrell <jb@cimlogic.com.au>.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by John Birrell.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $FreeBSD: src/lib/libpthread/thread/thr_detach.c,v 1.23 2003/07/23 02:11:07 deischen Exp $
33 * $DragonFly: src/lib/libthread_xu/thread/thr_detach.c,v 1.1 2005/02/01 12:38:27 davidxu Exp $
35 #include <sys/types.h>
36 #include <machine/atomic.h>
39 #include "thr_private.h"
41 __weak_reference(_pthread_detach, pthread_detach);
44 _pthread_detach(pthread_t pthread)
46 struct pthread *curthread = _get_curthread();
52 THREAD_LIST_LOCK(curthread);
53 if ((rval = _thr_find_thread(curthread, pthread,
54 /*include dead*/1)) != 0) {
55 THREAD_LIST_UNLOCK(curthread);
59 /* Check if the thread is already detached or has a joiner. */
60 if ((pthread->tlflags & TLFLAGS_DETACHED) != 0 ||
61 (pthread->joiner != NULL)) {
62 THREAD_LIST_UNLOCK(curthread);
66 /* Flag the thread as detached. */
67 pthread->tlflags |= TLFLAGS_DETACHED;
68 if (pthread->state == PS_DEAD)
69 THR_GCLIST_ADD(pthread);
70 THREAD_LIST_UNLOCK(curthread);