C++ (Cpp) _ASR_Is_null_handler Examples

Example #1

File: signalsend.c Project: 0871087123/rtems

rtems_status_code rtems_signal_send(
  rtems_id          id,
  rtems_signal_set  signal_set
)
{
  register Thread_Control *the_thread;
  Objects_Locations        location;
  RTEMS_API_Control       *api;
  ASR_Information         *asr;

  if ( !signal_set )
    return RTEMS_INVALID_NUMBER;

  the_thread = _Thread_Get( id, &location );
  switch ( location ) {

    case OBJECTS_LOCAL:
      api = the_thread->API_Extensions[ THREAD_API_RTEMS ];
      asr = &api->Signal;

      if ( ! _ASR_Is_null_handler( asr->handler ) ) {
        if ( asr->is_enabled ) {
          _ASR_Post_signals( signal_set, &asr->signals_posted );

          if ( _ISR_Is_in_progress() && _Thread_Is_executing( the_thread ) )
            _Thread_Dispatch_necessary = true;
        } else {
          _ASR_Post_signals( signal_set, &asr->signals_pending );
        }
        _Thread_Enable_dispatch();
        return RTEMS_SUCCESSFUL;
      }
      _Thread_Enable_dispatch();
      return RTEMS_NOT_DEFINED;

#if defined(RTEMS_MULTIPROCESSING)
    case OBJECTS_REMOTE:
      return _Signal_MP_Send_request_packet(
        SIGNAL_MP_SEND_REQUEST,
        id,
        signal_set
      );
#endif

    case OBJECTS_ERROR:
      break;
  }

  return RTEMS_INVALID_ID;
}

Example #2

File: signalcatch.c Project: AoLaD/rtems

rtems_status_code rtems_signal_catch(
  rtems_asr_entry   asr_handler,
  rtems_mode        mode_set
)
{
  Thread_Control     *executing;
  RTEMS_API_Control  *api;
  ASR_Information    *asr;
  ISR_lock_Context    lock_context;

  executing = _Thread_State_acquire_for_executing( &lock_context );
  api = executing->API_Extensions[ THREAD_API_RTEMS ];
  asr = &api->Signal;

  if ( !_ASR_Is_null_handler( asr_handler ) ) {
    asr->mode_set = mode_set;
    asr->handler = asr_handler;
  } else {
    _ASR_Initialize( asr );
  }

  _Thread_State_release( executing, &lock_context );
  return RTEMS_SUCCESSFUL;
}