1 | /* |
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2 | * Thread Handler / Thread Set State |
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3 | * |
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4 | * COPYRIGHT (c) 1989-2011. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.rtems.com/license/LICENSE. |
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10 | */ |
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11 | |
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12 | #if HAVE_CONFIG_H |
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13 | #include "config.h" |
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14 | #endif |
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15 | |
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16 | #include <rtems/system.h> |
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17 | #include <rtems/score/apiext.h> |
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18 | #include <rtems/score/context.h> |
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19 | #include <rtems/score/interr.h> |
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20 | #include <rtems/score/isr.h> |
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21 | #include <rtems/score/object.h> |
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22 | #include <rtems/score/priority.h> |
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23 | #include <rtems/score/scheduler.h> |
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24 | #include <rtems/score/states.h> |
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25 | #include <rtems/score/sysstate.h> |
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26 | #include <rtems/score/thread.h> |
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27 | #include <rtems/score/threadq.h> |
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28 | #include <rtems/score/userext.h> |
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29 | #include <rtems/score/wkspace.h> |
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30 | |
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31 | /* |
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32 | * INTERRUPT LATENCY: |
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33 | * ready chain |
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34 | * select map |
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35 | */ |
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36 | void _Thread_Set_state( |
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37 | Thread_Control *the_thread, |
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38 | States_Control state |
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39 | ) |
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40 | { |
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41 | ISR_Level level; |
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42 | |
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43 | _ISR_Disable( level ); |
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44 | if ( !_States_Is_ready( the_thread->current_state ) ) { |
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45 | the_thread->current_state = |
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46 | _States_Set( state, the_thread->current_state ); |
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47 | _ISR_Enable( level ); |
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48 | return; |
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49 | } |
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50 | |
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51 | the_thread->current_state = state; |
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52 | |
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53 | _Scheduler_Block( the_thread ); |
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54 | |
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55 | _ISR_Enable( level ); |
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56 | } |
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