5 * This translation unit implements functions related to thread
8 * --------------------------------------------------------------------------
10 * Pthreads-win32 - POSIX Threads Library for Win32
11 * Copyright(C) 1998 John E. Bossom
12 * Copyright(C) 1999,2005 Pthreads-win32 contributors
14 * Contact Email: rpj@callisto.canberra.edu.au
16 * The current list of contributors is contained
17 * in the file CONTRIBUTORS included with the source
18 * code distribution. The list can also be seen at the
19 * following World Wide Web location:
20 * http://sources.redhat.com/pthreads-win32/contributors.html
22 * This library is free software; you can redistribute it and/or
23 * modify it under the terms of the GNU Lesser General Public
24 * License as published by the Free Software Foundation; either
25 * version 2 of the License, or (at your option) any later version.
27 * This library is distributed in the hope that it will be useful,
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
30 * Lesser General Public License for more details.
32 * You should have received a copy of the GNU Lesser General Public
33 * License along with this library in the file COPYING.LIB;
34 * if not, write to the Free Software Foundation, Inc.,
35 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
39 #include "implement.h"
42 * Not needed yet, but defining it should indicate clashes with build target
43 * environment that should be fixed.
51 pthread_join (pthread_t thread, void **value_ptr)
53 * ------------------------------------------------------
55 * This function waits for 'thread' to terminate and
56 * returns the thread's exit value if 'value_ptr' is not
57 * NULL. This also detaches the thread on successful
62 * an instance of pthread_t
65 * pointer to an instance of pointer to void
69 * This function waits for 'thread' to terminate and
70 * returns the thread's exit value if 'value_ptr' is not
71 * NULL. This also detaches the thread on successful
73 * NOTE: detached threads cannot be joined or canceled
76 * 0 'thread' has completed
77 * EINVAL thread is not a joinable thread,
78 * ESRCH no thread could be found with ID 'thread',
79 * ENOENT thread couldn't find it's own valid handle,
80 * EDEADLK attempt to join thread with self
82 * ------------------------------------------------------
87 ptw32_thread_t * tp = (ptw32_thread_t *) thread.p;
88 ptw32_mcs_local_node_t node;
90 ptw32_mcs_lock_acquire(&ptw32_thread_reuse_lock, &node);
93 || thread.x != tp->ptHandle.x)
97 else if (PTHREAD_CREATE_DETACHED == tp->detachState)
106 ptw32_mcs_lock_release(&node);
111 * The target thread is joinable and can't be reused before we join it.
113 self = pthread_self();
119 else if (pthread_equal (self, thread))
126 * Pthread_join is a cancelation point.
127 * If we are canceled then our target thread must not be
128 * detached (destroyed). This is guarranteed because
129 * pthreadCancelableWait will not return if we
132 result = pthreadCancelableWait (tp->threadH);
136 if (value_ptr != NULL)
138 *value_ptr = tp->exitStatus;
142 * The result of making multiple simultaneous calls to
143 * pthread_join() or pthread_detach() specifying the same
144 * target is undefined.
146 result = pthread_detach (thread);