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/**
* @file
*
* @ingroup RTEMSScoreSchedulerEDF
*
* @brief This source file contains the implementation of
* _Scheduler_EDF_Update_priority().
*/
/*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/scheduleredfimpl.h>
void _Scheduler_EDF_Update_priority(
const Scheduler_Control *scheduler,
Thread_Control *the_thread,
Scheduler_Node *node
)
{
Scheduler_EDF_Context *context;
Scheduler_EDF_Node *the_node;
Priority_Control priority;
Priority_Control insert_priority;
if ( !_Thread_Is_ready( the_thread ) ) {
/* Nothing to do */
return;
}
the_node = _Scheduler_EDF_Node_downcast( node );
insert_priority = _Scheduler_Node_get_priority( &the_node->Base );
priority = SCHEDULER_PRIORITY_PURIFY( insert_priority );
if ( priority == the_node->priority ) {
/* Nothing to do */
return;
}
the_node->priority = priority;
context = _Scheduler_EDF_Get_context( scheduler );
_Scheduler_EDF_Extract( context, the_node );
_Scheduler_EDF_Enqueue( context, the_node, insert_priority );
_Scheduler_EDF_Schedule_body( scheduler, the_thread, false );
}
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