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/*
 *  $Id$
 */

#if HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdarg.h>

#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <semaphore.h>
#include <limits.h>

#include <rtems/system.h>
#include <rtems/score/object.h>
#include <rtems/posix/semaphore.h>
#include <rtems/posix/time.h>
#include <rtems/seterr.h>

/*PAGE
 *
 *  _POSIX_Semaphore_Wait_support
 */

int _POSIX_Semaphore_Wait_support(
  sem_t                          *sem,
  Core_semaphore_Blocking_option  blocking,
  Watchdog_Interval               timeout
)
{
  POSIX_Semaphore_Control *the_semaphore;
  Objects_Locations        location;

  the_semaphore = _POSIX_Semaphore_Get( sem, &location );
  switch ( location ) {

    case OBJECTS_LOCAL:
      _CORE_semaphore_Seize(
        &the_semaphore->Semaphore,
        the_semaphore->Object.id,
        blocking,
        timeout
      );
      _Thread_Enable_dispatch();

      if ( !_Thread_Executing->Wait.return_code )
        return 0;

      rtems_set_errno_and_return_minus_one(
        _POSIX_Semaphore_Translate_core_semaphore_return_code(
          _Thread_Executing->Wait.return_code
        )
      );

#if defined(RTEMS_MULTIPROCESSING)
    case OBJECTS_REMOTE:
#endif
    case OBJECTS_ERROR:
      break;
  }

  rtems_set_errno_and_return_minus_one( EINVAL );
}