4.115
Last change
on this file since e6b31b27 was
c499856,
checked in by Chris Johns <chrisj@…>, on 03/20/14 at 21:10:47
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Change all references of rtems.com to rtems.org.
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Property mode set to
100644
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File size:
1.5 KB
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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief rtems_task_is_suspended |
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5 | * @ingroup ClassicTasks Tasks |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-2014. |
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10 | * 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/rtems/tasks.h> |
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22 | #include <rtems/score/threadimpl.h> |
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23 | |
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24 | /* |
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25 | * rtems_task_is_suspended |
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26 | * |
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27 | * This directive returns a status indicating whether or not |
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28 | * the specified task is suspended. |
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29 | * |
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30 | * Input parameters: |
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31 | * id - thread id |
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32 | * |
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33 | * Output parameters: |
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34 | * RTEMS_SUCCESSFUL - if successful and not suspended |
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35 | * RTEMS_ALREADY_SUSPENDED - if successful and suspended |
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36 | * error code - if unsuccessful |
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37 | */ |
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38 | |
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39 | rtems_status_code rtems_task_is_suspended( |
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40 | rtems_id id |
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41 | ) |
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42 | { |
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43 | Thread_Control *the_thread; |
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44 | Objects_Locations location; |
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45 | |
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46 | the_thread = _Thread_Get( id, &location ); |
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47 | switch ( location ) { |
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48 | |
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49 | case OBJECTS_LOCAL: |
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50 | if ( !_States_Is_suspended( the_thread->current_state ) ) { |
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51 | _Objects_Put( &the_thread->Object ); |
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52 | return RTEMS_SUCCESSFUL; |
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53 | } |
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54 | _Objects_Put( &the_thread->Object ); |
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55 | return RTEMS_ALREADY_SUSPENDED; |
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56 | |
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57 | #if defined(RTEMS_MULTIPROCESSING) |
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58 | case OBJECTS_REMOTE: |
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59 | _Thread_Dispatch(); |
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60 | return RTEMS_ILLEGAL_ON_REMOTE_OBJECT; |
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61 | #endif |
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62 | |
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63 | case OBJECTS_ERROR: |
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64 | break; |
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65 | } |
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66 | |
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67 | return RTEMS_INVALID_ID; |
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68 | } |
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