source: rtems/cpukit/score/src/schedulercbsreleasejob.c @ 25f5730f

4.11
Last change on this file since 25f5730f was beab7329, checked in by Sebastian Huber <sebastian.huber@…>, on May 13, 2014 at 2:03:05 PM

score: Introduce scheduler nodes

Rename scheduler per-thread information into scheduler nodes using
Scheduler_Node as the base type. Use inheritance for specialized
schedulers.

Move the scheduler specific states from the thread control block into
the scheduler node structure.

Validate the SMP scheduler node state transitions in case RTEMS_DEBUG is
defined.

  • Property mode set to 100644
File size: 1.5 KB
Line 
1/**
2 * @file
3 *
4 * @brief Scheduler CBS Release Job
5 *
6 * @ingroup ScoreScheduler
7 */
8
9/*
10 *  Copyright (C) 2011 Petr Benes.
11 *  Copyright (C) 2011 On-Line Applications Research Corporation (OAR).
12 *
13 *  The license and distribution terms for this file may be
14 *  found in the file LICENSE in this distribution or at
15 *  http://www.rtems.org/license/LICENSE.
16 */
17
18#if HAVE_CONFIG_H
19#include "config.h"
20#endif
21
22#include <rtems/score/schedulercbsimpl.h>
23#include <rtems/score/threadimpl.h>
24#include <rtems/score/watchdogimpl.h>
25
26void _Scheduler_CBS_Release_job(
27  const Scheduler_Control *scheduler,
28  Thread_Control          *the_thread,
29  uint32_t                 deadline
30)
31{
32  Scheduler_CBS_Node   *node = _Scheduler_CBS_Node_get( the_thread );
33  Scheduler_CBS_Server *serv_info = node->cbs_server;
34  Priority_Control      new_priority;
35
36  if (deadline) {
37    /* Initializing or shifting deadline. */
38    if (serv_info)
39      new_priority = (_Watchdog_Ticks_since_boot + serv_info->parameters.deadline)
40        & ~SCHEDULER_EDF_PRIO_MSB;
41    else
42      new_priority = (_Watchdog_Ticks_since_boot + deadline)
43        & ~SCHEDULER_EDF_PRIO_MSB;
44  }
45  else {
46    /* Switch back to background priority. */
47    new_priority = the_thread->Start.initial_priority;
48  }
49
50  /* Budget replenishment for the next job. */
51  if (serv_info)
52    the_thread->cpu_time_budget = serv_info->parameters.budget;
53
54  the_thread->real_priority = new_priority;
55  _Thread_Change_priority(the_thread, new_priority, true);
56}
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