C++ (Cpp) _POSIX_Semaphore_Delete Examples

Example #1

File: semclose.c Project: krzysiekm13/rtems

int sem_close(
    sem_t *sem
)
{
    POSIX_Semaphore_Control          *the_semaphore;
    Objects_Locations                 location;

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

    case OBJECTS_LOCAL:
        the_semaphore->open_count -= 1;
        _POSIX_Semaphore_Delete( the_semaphore );
        _Objects_Put( &the_semaphore->Object );
        _Objects_Allocator_unlock();
        return 0;

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

    _Objects_Allocator_unlock();

    rtems_set_errno_and_return_minus_one( EINVAL );
}

Example #2

File: semclose.c Project: epicsdeb/rtems

int sem_close(
  sem_t *sem
)
{
  register POSIX_Semaphore_Control *the_semaphore;
  Objects_Locations                 location;

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

    case OBJECTS_LOCAL:
      the_semaphore->open_count -= 1;
      _POSIX_Semaphore_Delete( the_semaphore );
      _Thread_Enable_dispatch();
      return 0;

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

  rtems_set_errno_and_return_minus_one( EINVAL );
}

Example #3

File: semunlink.c Project: atixing/rtems

int sem_unlink(
  const char *name
)
{
  int  status;
  register POSIX_Semaphore_Control *the_semaphore;
  Objects_Id the_semaphore_id;
  size_t name_len;

  _Thread_Disable_dispatch();

  status = _POSIX_Semaphore_Name_to_id( name, &the_semaphore_id, &name_len );
  if ( status != 0 ) {
    _Thread_Enable_dispatch();
    rtems_set_errno_and_return_minus_one( status );
  }

  the_semaphore = (POSIX_Semaphore_Control *) _Objects_Get_local_object(
    &_POSIX_Semaphore_Information,
    _Objects_Get_index( the_semaphore_id )
  );

  the_semaphore->linked = false;
  _POSIX_Semaphore_Namespace_remove( the_semaphore );
  _POSIX_Semaphore_Delete( the_semaphore );

  _Thread_Enable_dispatch();
  return 0;
}

Example #4

File: semunlink.c Project: jfpmonteiro/rtems-4.8-rhealstone

int sem_unlink(
  const char *name
)
{
  int  status;
  register POSIX_Semaphore_Control *the_semaphore;
  sem_t                        the_semaphore_id;

  _Thread_Disable_dispatch();

  status = _POSIX_Semaphore_Name_to_id( name, &the_semaphore_id );
  if ( status != 0 ) {
    _Thread_Enable_dispatch();
    rtems_set_errno_and_return_minus_one( status );
  }

  /*
   *  Don't support unlinking a remote semaphore.
   */

#if defined(RTEMS_MULTIPROCESSING)
  if ( !_Objects_Is_local_id((Objects_Id)the_semaphore_id) ) {
    _Thread_Enable_dispatch();
    rtems_set_errno_and_return_minus_one( ENOSYS );
  }
#endif

  the_semaphore = (POSIX_Semaphore_Control *) _Objects_Get_local_object(
    &_POSIX_Semaphore_Information,
    _Objects_Get_index( the_semaphore_id )
  );

#if defined(RTEMS_MULTIPROCESSING)
  if ( the_semaphore->process_shared == PTHREAD_PROCESS_SHARED ) {
    _Objects_MP_Close( &_POSIX_Semaphore_Information, the_semaphore_id );
  }
#endif

  the_semaphore->linked = FALSE;
  _POSIX_Semaphore_Namespace_remove( the_semaphore );
  _POSIX_Semaphore_Delete( the_semaphore );

  _Thread_Enable_dispatch();
  return 0;
}