5
Last change
on this file since 99fc1d1d was
d9952999,
checked in by Sebastian Huber <sebastian.huber@…>, on 05/11/16 at 09:06:51
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score: Avoid Giant lock _Scheduler_Get_affinity()
Update #2555.
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Property mode set to
100644
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File size:
1.2 KB
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1 | /* |
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2 | * Copyright (c) 2014 embedded brains GmbH. All rights reserved. |
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3 | * |
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4 | * embedded brains GmbH |
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5 | * Dornierstr. 4 |
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6 | * 82178 Puchheim |
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7 | * Germany |
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8 | * <rtems@embedded-brains.de> |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.rtems.org/license/LICENSE. |
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13 | */ |
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14 | |
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15 | #if HAVE_CONFIG_H |
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16 | #include "config.h" |
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17 | #endif |
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18 | |
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19 | #include <rtems/score/schedulerimpl.h> |
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20 | |
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21 | #if defined(__RTEMS_HAVE_SYS_CPUSET_H__) |
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22 | |
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23 | bool _Scheduler_Get_affinity( |
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24 | Thread_Control *the_thread, |
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25 | size_t cpusetsize, |
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26 | cpu_set_t *cpuset |
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27 | ) |
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28 | { |
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29 | const Scheduler_Control *scheduler; |
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30 | ISR_lock_Context lock_context; |
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31 | bool ok; |
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32 | |
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33 | if ( !_CPU_set_Is_large_enough( cpusetsize ) ) { |
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34 | return false; |
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35 | } |
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36 | |
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37 | scheduler = _Scheduler_Get( the_thread ); |
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38 | _Scheduler_Acquire_critical( scheduler, &lock_context ); |
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39 | |
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40 | #if defined(RTEMS_SMP) |
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41 | ok = ( *scheduler->Operations.get_affinity )( |
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42 | scheduler, |
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43 | the_thread, |
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44 | cpusetsize, |
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45 | cpuset |
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46 | ); |
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47 | #else |
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48 | ok = _Scheduler_default_Get_affinity_body( |
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49 | scheduler, |
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50 | the_thread, |
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51 | cpusetsize, |
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52 | cpuset |
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53 | ); |
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54 | #endif |
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55 | |
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56 | _Scheduler_Release_critical( scheduler, &lock_context ); |
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57 | return ok; |
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58 | } |
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59 | |
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60 | #endif /* defined(__RTEMS_HAVE_SYS_CPUSET_H__) */ |
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