4.104.114.84.95
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1 | /* |
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2 | * Thread Handler |
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3 | * |
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4 | * |
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5 | * COPYRIGHT (c) 1989-1999. |
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6 | * On-Line Applications Research Corporation (OAR). |
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7 | * |
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8 | * The license and distribution terms for this file may be |
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9 | * found in found in the file LICENSE in this distribution or at |
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10 | * http://www.OARcorp.com/rtems/license.html. |
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11 | * |
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12 | * $Id$ |
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13 | */ |
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14 | |
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15 | #include <rtems/system.h> |
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16 | #include <rtems/score/apiext.h> |
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17 | #include <rtems/score/context.h> |
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18 | #include <rtems/score/interr.h> |
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19 | #include <rtems/score/isr.h> |
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20 | #include <rtems/score/object.h> |
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21 | #include <rtems/score/priority.h> |
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22 | #include <rtems/score/states.h> |
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23 | #include <rtems/score/sysstate.h> |
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24 | #include <rtems/score/thread.h> |
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25 | #include <rtems/score/threadq.h> |
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26 | #include <rtems/score/userext.h> |
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27 | #include <rtems/score/wkspace.h> |
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28 | |
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29 | /*PAGE |
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30 | * |
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31 | * _Thread_Evaluate_mode |
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32 | * |
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33 | * XXX |
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34 | */ |
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35 | |
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36 | boolean _Thread_Evaluate_mode( void ) |
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37 | { |
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38 | Thread_Control *executing; |
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39 | |
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40 | executing = _Thread_Executing; |
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41 | |
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42 | if ( !_States_Is_ready( executing->current_state ) || |
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43 | ( !_Thread_Is_heir( executing ) && executing->is_preemptible ) ) { |
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44 | _Context_Switch_necessary = TRUE; |
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45 | return TRUE; |
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46 | } |
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47 | |
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48 | return FALSE; |
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49 | } |
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