path: root/cpukit/score/src/scheduleredfreleasejob.c

/**
 * @file
 *
 * @brief Scheduler EDF Release Job
 * @ingroup ScoreScheduler
 */

/*
 *  Copyright (C) 2011 Petr Benes.
 *  Copyright (C) 2011 On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.org/license/LICENSE.
 */

#if HAVE_CONFIG_H
#include "config.h"
#endif

#include <rtems/score/scheduleredfimpl.h>

Priority_Control _Scheduler_EDF_Map_priority(
  const Scheduler_Control *scheduler,
  Priority_Control         priority
)
{
  return SCHEDULER_EDF_PRIO_MSB | priority;
}

Priority_Control _Scheduler_EDF_Unmap_priority(
  const Scheduler_Control *scheduler,
  Priority_Control         priority
)
{
  return priority & ~SCHEDULER_EDF_PRIO_MSB;
}

void _Scheduler_EDF_Release_job(
  const Scheduler_Control *scheduler,
  Thread_Control          *the_thread,
  Priority_Node           *priority_node,
  uint64_t                 deadline,
  Thread_queue_Context    *queue_context
)
{
  (void) scheduler;

  _Thread_Wait_acquire_critical( the_thread, queue_context );

  _Priority_Node_set_priority( priority_node, deadline );

  if ( _Priority_Node_is_active( priority_node ) ) {
    _Thread_Priority_changed(
      the_thread,
      priority_node,
      false,
      queue_context
    );
  } else {
    _Thread_Priority_add( the_thread, priority_node, queue_context );
  }

  _Thread_Wait_release_critical( the_thread, queue_context );
}

void _Scheduler_EDF_Cancel_job(
  const Scheduler_Control *scheduler,
  Thread_Control          *the_thread,
  Priority_Node           *priority_node,
  Thread_queue_Context    *queue_context
)
{
  (void) scheduler;

  _Thread_Wait_acquire_critical( the_thread, queue_context );

  _Thread_Priority_remove( the_thread, priority_node, queue_context );
  _Priority_Node_set_inactive( priority_node );

  _Thread_Wait_release_critical( the_thread, queue_context );
}