source: rtems/cpukit/score/src/scheduleredfnodeinit.c @ 2548d14

5
Last change on this file since 2548d14 was 300f6a48, checked in by Sebastian Huber <sebastian.huber@…>, on 06/22/16 at 15:09:23

score: Rework thread priority management

Add priority nodes which contribute to the overall thread priority.

The actual priority of a thread is now an aggregation of priority nodes.
The thread priority aggregation for the home scheduler instance of a
thread consists of at least one priority node, which is normally the
real priority of the thread. The locking protocols (e.g. priority
ceiling and priority inheritance), rate-monotonic period objects and the
POSIX sporadic server add, change and remove priority nodes.

A thread changes its priority now immediately, e.g. priority changes are
not deferred until the thread releases its last resource.

Replace the _Thread_Change_priority() function with

  • _Thread_Priority_perform_actions(),
  • _Thread_Priority_add(),
  • _Thread_Priority_remove(),
  • _Thread_Priority_change(), and
  • _Thread_Priority_update().

Update #2412.
Update #2556.
  • Property mode set to 100644
File size: 877 bytes
Line 
1/**
2 *  @file
3 *
4 *  @brief Scheduler EDF Allocate
5 *  @ingroup ScoreScheduler
6 */
7
8/*
9 *  Copyright (C) 2011 Petr Benes.
10 *  Copyright (C) 2011 On-Line Applications Research Corporation (OAR).
11 *
12 *  The license and distribution terms for this file may be
13 *  found in the file LICENSE in this distribution or at
14 *  http://www.rtems.org/license/LICENSE.
15 */
16
17#if HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <rtems/score/scheduleredfimpl.h>
22
23void _Scheduler_EDF_Node_initialize(
24  const Scheduler_Control *scheduler,
25  Scheduler_Node          *node,
26  Thread_Control          *the_thread,
27  Priority_Control         priority
28)
29{
30  Scheduler_EDF_Node *the_node;
31
32  _Scheduler_Node_do_initialize( scheduler, node, the_thread, priority );
33
34  the_node = _Scheduler_EDF_Node_downcast( node );
35  _RBTree_Initialize_node( &the_node->Node );
36  the_node->priority = priority;
37}
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