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/*
* $Id$
*/
#include <assert.h>
#include <errno.h>
#include <pthread.h>
#include <rtems/system.h>
#include <rtems/score/coremutex.h>
#include <rtems/score/watchdog.h>
#if defined(RTEMS_MULTIPROCESSING)
#include <rtems/score/mpci.h>
#endif
#include <rtems/posix/mutex.h>
#include <rtems/posix/priority.h>
#include <rtems/posix/time.h>
/*PAGE
*
* 11.3.3 Locking and Unlocking a Mutex, P1003.1c/Draft 10, p. 93
*
* NOTE: P1003.4b/D8 adds pthread_mutex_timedlock(), p. 29
*/
int pthread_mutex_unlock(
pthread_mutex_t *mutex
)
{
register POSIX_Mutex_Control *the_mutex;
Objects_Locations location;
CORE_mutex_Status status;
the_mutex = _POSIX_Mutex_Get( mutex, &location );
switch ( location ) {
case OBJECTS_REMOTE:
#if defined(RTEMS_MULTIPROCESSING)
return _POSIX_Mutex_MP_Send_request_packet(
POSIX_MUTEX_MP_RELEASE_REQUEST,
*mutex,
0, /* Not used */
MPCI_DEFAULT_TIMEOUT
);
#endif
case OBJECTS_ERROR:
return EINVAL;
case OBJECTS_LOCAL:
status = _CORE_mutex_Surrender(
&the_mutex->Mutex,
the_mutex->Object.id,
#if defined(RTEMS_MULTIPROCESSING)
_POSIX_Threads_mutex_MP_support
#else
NULL
#endif
);
_Thread_Enable_dispatch();
return _POSIX_Mutex_From_core_mutex_status( status );
break;
}
return POSIX_BOTTOM_REACHED();
}
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