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. Neither the name of the author nor the names of any co-contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include "namespace.h"
35 #include <pthread_np.h>
36 #include "un-namespace.h"
38 #include "thr_private.h"
40 __weak_reference(_pthread_resume_np, pthread_resume_np);
41 __weak_reference(_pthread_resume_all_np, pthread_resume_all_np);
43 static void resume_common(struct pthread *thread);
45 /* Resume a thread: */
47 _pthread_resume_np(pthread_t thread)
49 struct pthread *curthread = _get_curthread();
52 /* Add a reference to the thread: */
53 if ((ret = _thr_find_thread(curthread, thread, /*include dead*/0)) == 0) {
54 /* Lock the threads scheduling queue: */
55 resume_common(thread);
56 THR_THREAD_UNLOCK(curthread, thread);
62 _pthread_resume_all_np(void)
64 struct pthread *curthread = _get_curthread();
65 struct pthread *thread;
67 /* Take the thread list lock: */
68 THREAD_LIST_RDLOCK(curthread);
70 TAILQ_FOREACH(thread, &_thread_list, tle) {
71 if (thread != curthread) {
72 THR_THREAD_LOCK(curthread, thread);
73 resume_common(thread);
74 THR_THREAD_UNLOCK(curthread, thread);
78 /* Release the thread list lock: */
79 THREAD_LIST_UNLOCK(curthread);
83 resume_common(struct pthread *thread)
85 /* Clear the suspend flag: */
86 thread->flags &= ~THR_FLAGS_NEED_SUSPEND;
88 _thr_umtx_wake(&thread->cycle, 1, 0);