source: rtems/cpukit/posix/src/condsignalsupp.c @ 860c34e

4.104.114.95
Last change on this file since 860c34e was 860c34e, checked in by Glenn Humphrey <glenn.humphrey@…>, on 11/30/07 at 20:34:13

2007-11-30 Glenn Humphrey <glenn.humphrey@…>

  • posix/include/rtems/posix/mutex.h, posix/include/rtems/posix/semaphore.h, posix/src/cancel.c, posix/src/conddestroy.c, posix/src/condsignalsupp.c, posix/src/condwaitsupp.c, posix/src/keydelete.c, posix/src/keygetspecific.c, posix/src/keysetspecific.c, posix/src/mqueueclose.c, posix/src/mqueuegetattr.c, posix/src/mqueuenotify.c, posix/src/mqueuerecvsupp.c, posix/src/mqueuesendsupp.c, posix/src/mqueuesetattr.c, posix/src/mqueuetranslatereturncode.c, posix/src/mutexdestroy.c, posix/src/mutexgetprioceiling.c, posix/src/mutexinit.c, posix/src/mutexlocksupp.c, posix/src/mutexsetprioceiling.c, posix/src/mutexunlock.c, posix/src/pbarrierdestroy.c, posix/src/pbarriertranslatereturncode.c, posix/src/pbarrierwait.c, posix/src/prwlockdestroy.c, posix/src/prwlockrdlock.c, posix/src/prwlocktimedrdlock.c, posix/src/prwlocktimedwrlock.c, posix/src/prwlocktranslatereturncode.c, posix/src/prwlocktryrdlock.c, posix/src/prwlocktrywrlock.c, posix/src/prwlockunlock.c, posix/src/prwlockwrlock.c, posix/src/pspindestroy.c, posix/src/pspinlock.c, posix/src/pspinlocktranslatereturncode.c, posix/src/pspintrylock.c, posix/src/pspinunlock.c, posix/src/pthreaddetach.c, posix/src/pthreadequal.c, posix/src/pthreadgetschedparam.c, posix/src/pthreadjoin.c, posix/src/pthreadkill.c, posix/src/pthreadsetschedparam.c, posix/src/ptimer1.c, posix/src/semaphorewaitsupp.c, posix/src/semclose.c, posix/src/semdestroy.c, posix/src/semgetvalue.c, posix/src/sempost.c, posix/src/types.c, rtems/src/msgqtranslatereturncode.c, rtems/src/semobtain.c, rtems/src/timerfireafter.c, score/include/rtems/system.h, score/include/rtems/score/corebarrier.h, score/include/rtems/score/coremsg.h, score/include/rtems/score/coremutex.h, score/include/rtems/score/coresem.h: Restructed to move the OBJECTS_LOCAL case to the top of the switch statement and eliminate the fall-through return of POSIX_BOTTOM_REACHED. These changes produced simplier assembly code and allowed for complete test coverage. Also applied some consistency to the functions that translate the core status codes to POSIX status codes.
  • posix/src/mutextranslatereturncode.c, posix/src/semaphoretranslatereturncode.c: New files.
  • posix/src/mutexfromcorestatus.c: Removed.
  • Property mode set to 100644
File size: 1.3 KB
Line 
1/*
2 *  $Id$
3 */
4
5#if HAVE_CONFIG_H
6#include "config.h"
7#endif
8
9#include <pthread.h>
10#include <errno.h>
11
12#include <rtems/system.h>
13#include <rtems/score/object.h>
14#include <rtems/score/states.h>
15#include <rtems/score/watchdog.h>
16#include <rtems/posix/cond.h>
17#include <rtems/posix/time.h>
18#include <rtems/posix/mutex.h>
19
20/*PAGE
21 *
22 *  _POSIX_Condition_variables_Signal_support
23 *
24 *  A support routine which implements guts of the broadcast and single task
25 *  wake up version of the "signal" operation.
26 */
27
28int _POSIX_Condition_variables_Signal_support(
29  pthread_cond_t            *cond,
30  boolean                    is_broadcast
31)
32{
33  register POSIX_Condition_variables_Control *the_cond;
34  Objects_Locations                           location;
35  Thread_Control                             *the_thread;
36
37  the_cond = _POSIX_Condition_variables_Get( cond, &location );
38  switch ( location ) {
39
40    case OBJECTS_LOCAL:
41      do {
42        the_thread = _Thread_queue_Dequeue( &the_cond->Wait_queue );
43        if ( !the_thread )
44          the_cond->Mutex = POSIX_CONDITION_VARIABLES_NO_MUTEX;
45      } while ( is_broadcast && the_thread );
46
47      _Thread_Enable_dispatch();
48
49      return 0;
50
51#if defined(RTEMS_MULTIPROCESSING)
52    case OBJECTS_REMOTE:
53#endif
54    case OBJECTS_ERROR:
55      break;
56  }
57
58  return EINVAL;
59}
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