1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief RTEMS Delete Task |
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5 | * @ingroup ClassicTasks |
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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 | #ifdef 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/tasksimpl.h> |
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22 | #include <rtems/score/threadimpl.h> |
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23 | |
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24 | rtems_status_code rtems_task_delete( |
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25 | rtems_id id |
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26 | ) |
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27 | { |
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28 | Thread_Control *the_thread; |
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29 | Thread_Close_context context; |
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30 | Thread_Control *executing; |
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31 | |
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32 | _Thread_queue_Context_initialize( &context.Base ); |
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33 | the_thread = _Thread_Get( id, &context.Base.Lock_context.Lock_context ); |
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34 | |
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35 | if ( the_thread == NULL ) { |
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36 | #if defined(RTEMS_MULTIPROCESSING) |
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37 | if ( _Thread_MP_Is_remote( id ) ) { |
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38 | return RTEMS_ILLEGAL_ON_REMOTE_OBJECT; |
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39 | } |
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40 | #endif |
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41 | |
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42 | return RTEMS_INVALID_ID; |
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43 | } |
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44 | |
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45 | executing = _Thread_Executing; |
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46 | |
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47 | if ( the_thread == executing ) { |
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48 | Per_CPU_Control *cpu_self; |
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49 | |
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50 | cpu_self = _Thread_queue_Dispatch_disable( &context.Base ); |
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51 | _ISR_lock_ISR_enable( &context.Base.Lock_context.Lock_context ); |
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52 | |
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53 | /* |
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54 | * The Classic tasks are neither detached nor joinable. In case of |
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55 | * self deletion, they are detached, otherwise joinable by default. |
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56 | */ |
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57 | _Thread_Exit( |
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58 | executing, |
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59 | THREAD_LIFE_TERMINATING | THREAD_LIFE_DETACHED, |
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60 | NULL |
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61 | ); |
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62 | _Thread_Dispatch_enable( cpu_self ); |
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63 | } else { |
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64 | _Thread_Close( the_thread, executing, &context ); |
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65 | } |
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66 | |
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67 | return RTEMS_SUCCESSFUL; |
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68 | } |
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