4.104.114.84.95
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1 | /* |
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2 | * COPYRIGHT (c) 1989-1999. |
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3 | * On-Line Applications Research Corporation (OAR). |
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4 | * |
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5 | * The license and distribution terms for this file may be |
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6 | * found in the file LICENSE in this distribution or at |
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7 | * http://www.rtems.com/license/LICENSE. |
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8 | * |
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9 | * $Id$ |
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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 <limits.h> |
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17 | #include <rtems/itron.h> |
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18 | |
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19 | #include <rtems/score/thread.h> |
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20 | #include <rtems/score/userext.h> |
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21 | #include <rtems/score/wkspace.h> |
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22 | #include <rtems/score/apiext.h> |
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23 | #include <rtems/score/sysstate.h> |
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24 | |
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25 | #include <rtems/itron/task.h> |
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26 | |
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27 | |
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28 | /* |
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29 | * Task-Dependent Synchronization Functions |
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30 | */ |
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31 | |
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32 | /* |
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33 | * sus_tsk - Suspend Other Task |
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34 | */ |
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35 | |
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36 | ER sus_tsk( |
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37 | ID tskid |
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38 | ) |
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39 | { |
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40 | register Thread_Control *the_thread; |
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41 | Objects_Locations location; |
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42 | |
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43 | the_thread = _ITRON_Task_Get( tskid, &location ); |
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44 | switch ( location ) { |
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45 | case OBJECTS_REMOTE: |
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46 | case OBJECTS_ERROR: |
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47 | return _ITRON_Task_Clarify_get_id_error( tskid ); |
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48 | |
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49 | case OBJECTS_LOCAL: |
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50 | |
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51 | if ( _Thread_Is_executing( the_thread ) ) |
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52 | _ITRON_return_errorno( E_OBJ ); |
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53 | |
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54 | if (the_thread->suspend_count == INT_MAX ) |
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55 | _ITRON_return_errorno( E_QOVR ); |
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56 | |
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57 | _Thread_Suspend( the_thread ); |
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58 | break; |
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59 | } |
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60 | |
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61 | _ITRON_return_errorno( E_OK ); |
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62 | } |
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