C++ (Cpp) _Scheduler_Node_get_priority Examples

Example #1

void _Scheduler_simple_Update_priority(
  const Scheduler_Control *scheduler,
  Thread_Control          *the_thread,
  Scheduler_Node          *node
)
{
  Scheduler_simple_Context *context;
  bool                      prepend_it;

  if ( !_Thread_Is_ready( the_thread ) ) {
    /* Nothing to do */
    return;
  }

  context = _Scheduler_simple_Get_context( scheduler );
  _Scheduler_Node_get_priority( node, &prepend_it );

  _Scheduler_simple_Extract( scheduler, the_thread, node );

  if ( prepend_it ) {
    _Scheduler_simple_Insert_priority_lifo( &context->Ready, the_thread );
  } else {
    _Scheduler_simple_Insert_priority_fifo( &context->Ready, the_thread );
  }

  _Scheduler_simple_Schedule_body( scheduler, the_thread, false );
}

Example #2

File: schedulerprioritychangepriority.c Project: greenmeent/rtems

Scheduler_Void_or_thread _Scheduler_priority_Update_priority(
  const Scheduler_Control *scheduler,
  Thread_Control          *the_thread
)
{
  Scheduler_priority_Context *context;
  Scheduler_priority_Node    *node;
  unsigned int                priority;
  bool                        prepend_it;

  if ( !_Thread_Is_ready( the_thread ) ) {
    /* Nothing to do */
    SCHEDULER_RETURN_VOID_OR_NULL;
  }

  node = _Scheduler_priority_Thread_get_node( the_thread );
  priority = (unsigned int )
    _Scheduler_Node_get_priority( &node->Base, &prepend_it );

  if ( priority == node->Ready_queue.current_priority ) {
    /* Nothing to do */
    SCHEDULER_RETURN_VOID_OR_NULL;
  }

  context = _Scheduler_priority_Get_context( scheduler );

  _Scheduler_priority_Ready_queue_extract(
    &the_thread->Object.Node,
    &node->Ready_queue,
    &context->Bit_map
  );

  _Scheduler_priority_Ready_queue_update(
    &node->Ready_queue,
    priority,
    &context->Bit_map,
    &context->Ready[ 0 ]
  );

  if ( prepend_it ) {
    _Scheduler_priority_Ready_queue_enqueue_first(
      &the_thread->Object.Node,
      &node->Ready_queue,
      &context->Bit_map
    );
  } else {
    _Scheduler_priority_Ready_queue_enqueue(
      &the_thread->Object.Node,
      &node->Ready_queue,
      &context->Bit_map
    );
  }

  _Scheduler_priority_Schedule_body( scheduler, the_thread, false );

  SCHEDULER_RETURN_VOID_OR_NULL;
}

Example #3

File: schedulerpriorityunblock.c Project: valabojub79/rtems-iAptiv-Port

Scheduler_Void_or_thread _Scheduler_priority_Unblock (
  const Scheduler_Control *scheduler,
  Thread_Control          *the_thread
)
{
  Scheduler_priority_Context *context;
  Scheduler_priority_Node    *node;
  unsigned int                priority;
  bool                        prepend_it;

  context = _Scheduler_priority_Get_context( scheduler );
  node = _Scheduler_priority_Thread_get_node( the_thread );
  priority = (unsigned int )
    _Scheduler_Node_get_priority( &node->Base, &prepend_it );
  (void) prepend_it;

  if ( priority != node->Ready_queue.current_priority ) {
    _Scheduler_priority_Ready_queue_update(
      &node->Ready_queue,
      priority,
      &context->Bit_map,
      &context->Ready[ 0 ]
    );
  }

  _Scheduler_priority_Ready_queue_enqueue(
    &the_thread->Object.Node,
    &node->Ready_queue,
    &context->Bit_map
  );

  /* TODO: flash critical section? */

  /*
   *  If the thread that was unblocked is more important than the heir,
   *  then we have a new heir.  This may or may not result in a
   *  context switch.
   *
   *  Normal case:
   *    If the current thread is preemptible, then we need to do
   *    a context switch.
   *  Pseudo-ISR case:
   *    Even if the thread isn't preemptible, if the new heir is
   *    a pseudo-ISR system task, we need to do a context switch.
   */
  if ( priority < _Thread_Get_priority( _Thread_Heir ) ) {
    _Scheduler_Update_heir( the_thread, priority == PRIORITY_PSEUDO_ISR );
  }

  SCHEDULER_RETURN_VOID_OR_NULL;
}

Example #4

File: scheduleredfunblock.c Project: greenmeent/rtems

Scheduler_Void_or_thread _Scheduler_EDF_Unblock(
  const Scheduler_Control *scheduler,
  Thread_Control          *the_thread
)
{
  Scheduler_EDF_Context *context;
  Scheduler_EDF_Node    *node;
  Priority_Control       priority;
  bool                   prepend_it;

  context = _Scheduler_EDF_Get_context( scheduler );
  node = _Scheduler_EDF_Thread_get_node( the_thread );
  priority = _Scheduler_Node_get_priority( &node->Base, &prepend_it );
  (void) prepend_it;

  node->current_priority = priority;
  _Scheduler_EDF_Enqueue( context, node, priority );

  /*
   *  If the thread that was unblocked is more important than the heir,
   *  then we have a new heir.  This may or may not result in a
   *  context switch.
   *
   *  Normal case:
   *    If the current thread is preemptible, then we need to do
   *    a context switch.
   *  Pseudo-ISR case:
   *    Even if the thread isn't preemptible, if the new heir is
   *    a pseudo-ISR system task, we need to do a context switch.
   */
  if ( priority < _Thread_Heir->current_priority ) {
    _Scheduler_Update_heir(
      the_thread,
      priority == ( SCHEDULER_EDF_PRIO_MSB | PRIORITY_PSEUDO_ISR )
    );
  }

  SCHEDULER_RETURN_VOID_OR_NULL;
}