5
Last change
on this file since 1506658c was
900d337f,
checked in by Sebastian Huber <sebastian.huber@…>, on 05/05/15 at 11:05:54
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score: Rework _Thread_Change_priority()
Move the writes to Thread_Control::current_priority and
Thread_Control::real_priority into _Thread_Change_priority() under the
protection of the thread lock. Add a filter function to
_Thread_Change_priority() to enable specialized variants.
Avoid race conditions during a thread priority restore with the new
Thread_Control::priority_restore_hint for an important average case
optimizations used by priority inheritance mutexes.
Update #2273.
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Property mode set to
100644
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File size:
1.1 KB
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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Scheduler EDF Release Job |
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5 | * @ingroup ScoreScheduler |
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6 | */ |
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7 | |
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8 | /* |
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9 | * Copyright (C) 2011 Petr Benes. |
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10 | * Copyright (C) 2011 On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.org/license/LICENSE. |
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15 | */ |
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16 | |
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17 | #if HAVE_CONFIG_H |
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18 | #include "config.h" |
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19 | #endif |
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20 | |
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21 | #include <rtems/score/scheduleredf.h> |
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22 | #include <rtems/score/threadimpl.h> |
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23 | #include <rtems/score/watchdogimpl.h> |
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24 | |
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25 | void _Scheduler_EDF_Release_job( |
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26 | const Scheduler_Control *scheduler, |
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27 | Thread_Control *the_thread, |
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28 | uint32_t deadline |
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29 | ) |
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30 | { |
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31 | Priority_Control new_priority; |
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32 | Priority_Control unused; |
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33 | |
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34 | (void) scheduler; |
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35 | |
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36 | if (deadline) { |
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37 | /* Initializing or shifting deadline. */ |
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38 | new_priority = (_Watchdog_Ticks_since_boot + deadline) |
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39 | & ~SCHEDULER_EDF_PRIO_MSB; |
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40 | } |
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41 | else { |
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42 | /* Switch back to background priority. */ |
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43 | new_priority = the_thread->Start.initial_priority; |
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44 | } |
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45 | |
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46 | _Thread_Set_priority( the_thread, new_priority, &unused, true ); |
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47 | } |
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