1/*
2 * Copyright (c) 2005, David Xu <davidxu@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: head/lib/libthr/thread/thr_cancel.c 212536 2010-09-13 07:03:01Z davidxu $
27 *
28 */
29
30#include "namespace.h"
31#include <pthread.h>
32#include "un-namespace.h"
33
34#include "thr_private.h"

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55int
56_pthread_cancel(pthread_t pthread)
57{
58 struct pthread *curthread = _get_curthread();
59 int ret;
60
61 /*
62 * POSIX says _pthread_cancel should be async cancellation safe.
63 * _thr_find_thread and THR_THREAD_UNLOCK will enter and leave critical
64 * region automatically.
65 */
66 if ((ret = _thr_find_thread(curthread, pthread, 0)) == 0) {
67 if (!pthread->cancel_pending) {
68 pthread->cancel_pending = 1;
69 if (pthread->state != PS_DEAD)
70 _thr_send_sig(pthread, SIGCANCEL);
71 }
72 THR_THREAD_UNLOCK(curthread, pthread);
73 }
74 return (ret);
75}
76
77int
78_pthread_setcancelstate(int state, int *oldstate)
79{
80 struct pthread *curthread = _get_curthread();

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