source: rtems/cpukit/posix/src/pthreadjoin.c @ e7bd66a7

4.104.114.84.95
Last change on this file since e7bd66a7 was e7bd66a7, checked in by Ralf Corsepius <ralf.corsepius@…>, on Oct 21, 2003 at 9:39:11 AM

2003-10-21 Ralf Corsepius <corsepiu@…>

  • src/cancelrun.c, src/pthreadexit.c, src/pthreadjoin.c, src/sigtimedwait.c: Remove unnecessary typecasts in assignments to thread->Wait.return_argument.
  • Property mode set to 100644
File size: 1.6 KB
Line 
1/*
2 *  16.1.3 Wait for Thread Termination, P1003.1c/Draft 10, p. 147
3 *
4 *  COPYRIGHT (c) 1989-1999.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 *  $Id$
12 */
13
14#if HAVE_CONFIG_H
15#include "config.h"
16#endif
17
18#include <pthread.h>
19#include <errno.h>
20
21#include <rtems/system.h>
22#include <rtems/score/thread.h>
23#include <rtems/posix/pthread.h>
24
25int pthread_join(
26  pthread_t   thread,
27  void      **value_ptr
28)
29{
30  register Thread_Control *the_thread;
31  POSIX_API_Control       *api;
32  Objects_Locations        location;
33  void                    *return_pointer;
34
35  the_thread = _POSIX_Threads_Get( thread, &location );
36  switch ( location ) {
37    case OBJECTS_ERROR:
38    case OBJECTS_REMOTE:
39      return ESRCH;
40    case OBJECTS_LOCAL:
41      api = the_thread->API_Extensions[ THREAD_API_POSIX ];
42
43      if ( api->detachstate == PTHREAD_CREATE_DETACHED ) {
44        _Thread_Enable_dispatch();
45        return EINVAL;
46      }
47
48      if ( _Thread_Is_executing( the_thread ) ) {
49        _Thread_Enable_dispatch();
50        return EDEADLK;
51      }
52
53      /*
54       *  Put ourself on the threads join list
55       */
56
57      _Thread_Executing->Wait.return_argument = &return_pointer;
58
59      _Thread_queue_Enter_critical_section( &api->Join_List );
60
61      _Thread_queue_Enqueue( &api->Join_List, WATCHDOG_NO_TIMEOUT );
62
63      _Thread_Enable_dispatch();
64
65      if ( value_ptr )
66        *value_ptr = return_pointer;
67      return 0;
68  }
69
70  return POSIX_BOTTOM_REACHED();
71}
72
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