ER rsm_tsk(
ID tskid
)
{
register Thread_Control *the_thread;
Objects_Locations location;
the_thread = _ITRON_Task_Get( tskid, &location );
switch ( location ) {
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
#endif
case OBJECTS_ERROR:
return _ITRON_Task_Clarify_get_id_error( tskid );
case OBJECTS_LOCAL:
if ( _Thread_Is_executing( the_thread ) )
_ITRON_return_errorno( E_OBJ );
if ( _States_Is_dormant( the_thread->current_state ))
_ITRON_return_errorno( E_OBJ );
if ( ! _States_Is_suspended(the_thread->current_state) )
_ITRON_return_errorno( E_OBJ );
_Thread_Resume( the_thread, false );
break;
}
_ITRON_return_errorno( E_OK );
}
rtems_status_code rtems_task_is_suspended(
rtems_id id
)
{
register Thread_Control *the_thread;
Objects_Locations location;
the_thread = _Thread_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
if ( !_States_Is_suspended( the_thread->current_state ) ) {
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}
_Thread_Enable_dispatch();
return RTEMS_ALREADY_SUSPENDED;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
_Thread_Dispatch();
return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
rtems_status_code rtems_task_resume(
rtems_id id
)
{
Thread_Control *the_thread;
Objects_Locations location;
States_Control previous_state;
the_thread = _Thread_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
previous_state = _Thread_Clear_state( the_thread, STATES_SUSPENDED );
_Objects_Put( &the_thread->Object );
return _States_Is_suspended( previous_state ) ?
RTEMS_SUCCESSFUL : RTEMS_INCORRECT_STATE;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
return _RTEMS_tasks_MP_Send_request_packet(
RTEMS_TASKS_MP_RESUME_REQUEST,
id,
0, /* Not used */
0, /* Not used */
0 /* Not used */
);
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
rtems_status_code rtems_task_suspend(
rtems_id id
)
{
register Thread_Control *the_thread;
Objects_Locations location;
the_thread = _Thread_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
if ( !_States_Is_suspended( the_thread->current_state ) ) {
_Thread_Suspend( the_thread );
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}
_Thread_Enable_dispatch();
return RTEMS_ALREADY_SUSPENDED;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
return _RTEMS_tasks_MP_Send_request_packet(
RTEMS_TASKS_MP_SUSPEND_REQUEST,
id,
0, /* Not used */
0, /* Not used */
0 /* Not used */
);
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
rtems_status_code rtems_task_resume(
rtems_id id
)
{
register Thread_Control *the_thread;
Objects_Locations location;
the_thread = _Thread_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
if ( _States_Is_suspended( the_thread->current_state ) ) {
_Thread_Resume( the_thread );
_Objects_Put( &the_thread->Object );
return RTEMS_SUCCESSFUL;
}
_Objects_Put( &the_thread->Object );
return RTEMS_INCORRECT_STATE;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
return _RTEMS_tasks_MP_Send_request_packet(
RTEMS_TASKS_MP_RESUME_REQUEST,
id,
0, /* Not used */
0, /* Not used */
0 /* Not used */
);
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
ER ref_tsk(
T_RTSK *pk_rtsk,
ID tskid
)
{
register Thread_Control *the_thread;
Objects_Locations location;
Priority_Control core_priority;
if (!pk_rtsk)
return E_PAR;
the_thread = _ITRON_Task_Get( tskid, &location );
switch ( location ) {
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
#endif
case OBJECTS_ERROR:
return _ITRON_Task_Clarify_get_id_error( tskid );
case OBJECTS_LOCAL:
if ( location != OBJECTS_LOCAL )
return _ITRON_Task_Clarify_get_id_error( tskid );
/*
* The following are extended functions [level X ].
* XXX - tskwait, wid, wupcnt, and tskatr are presently not implemented.
*/
pk_rtsk->tskwait = 0;
pk_rtsk->wid = 0;
pk_rtsk->wupcnt = 0;
pk_rtsk->suscnt = the_thread->suspend_count;
pk_rtsk->tskatr = 0; /* XXX - Not correctly implemented */
pk_rtsk->task = (FP) the_thread->Start.entry_point;
core_priority = the_thread->Start.initial_priority;
pk_rtsk->itskpri = _ITRON_Task_Core_to_Priority( core_priority );
pk_rtsk->stksz = the_thread->Start.Initial_stack.size;
/*
* The following are required.
*/
pk_rtsk->exinf = NULL; /* extended information */
pk_rtsk->tskpri =
_ITRON_Task_Core_to_Priority(the_thread->current_priority);
/*
* Mask in the tskstat information
* Convert the task state XXX double check this
*/
pk_rtsk->tskstat = 0;
if ( the_thread == _Thread_Executing )
pk_rtsk->tskstat |= TTS_RUN;
if ( _States_Is_ready(the_thread->current_state) )
pk_rtsk->tskstat |= TTS_RDY;
if ( _States_Is_dormant( the_thread->current_state) )
pk_rtsk->tskstat |= TTS_DMT;
if ( _States_Is_suspended(the_thread->current_state) )
pk_rtsk->tskstat |= TTS_SUS;
if ( _States_Is_blocked(the_thread->current_state) )
pk_rtsk->tskstat |= TTS_WAI;
break;
}
_ITRON_return_errorno( E_OK );
}
