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;
}
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;
}