1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Thread Queue Enqueue |
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5 | * @ingroup ScoreThreadQ |
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6 | */ |
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7 | |
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8 | /* |
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9 | * Thread Queue Handler |
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10 | * |
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11 | * |
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12 | * COPYRIGHT (c) 1989-2008. |
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13 | * On-Line Applications Research Corporation (OAR). |
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14 | * |
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15 | * The license and distribution terms for this file may be |
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16 | * found in the file LICENSE in this distribution or at |
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17 | * http://www.rtems.org/license/LICENSE. |
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18 | */ |
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19 | |
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20 | #if HAVE_CONFIG_H |
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21 | #include "config.h" |
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22 | #endif |
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23 | |
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24 | #include <rtems/score/threadqimpl.h> |
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25 | #include <rtems/score/isrlevel.h> |
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26 | #include <rtems/score/threadimpl.h> |
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27 | #include <rtems/score/watchdogimpl.h> |
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28 | |
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29 | void _Thread_queue_Enqueue_with_handler( |
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30 | Thread_queue_Control *the_thread_queue, |
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31 | Thread_Control *the_thread, |
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32 | Watchdog_Interval timeout, |
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33 | Thread_queue_Timeout_callout handler |
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34 | ) |
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35 | { |
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36 | ISR_Level level; |
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37 | Thread_blocking_operation_States sync_state; |
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38 | Thread_blocking_operation_States (*enqueue_p)( |
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39 | Thread_queue_Control *, |
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40 | Thread_Control *, |
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41 | ISR_Level * |
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42 | ); |
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43 | |
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44 | #if defined(RTEMS_MULTIPROCESSING) |
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45 | if ( _Thread_MP_Is_receive( the_thread ) && the_thread->receive_packet ) |
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46 | the_thread = _Thread_MP_Allocate_proxy( the_thread_queue->state ); |
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47 | else |
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48 | #endif |
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49 | /* |
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50 | * Set the blocking state for this thread queue in the thread. |
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51 | */ |
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52 | _Thread_Set_state( the_thread, the_thread_queue->state ); |
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53 | |
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54 | /* |
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55 | * If the thread wants to timeout, then schedule its timer. |
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56 | */ |
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57 | if ( timeout ) { |
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58 | _Watchdog_Initialize( |
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59 | &the_thread->Timer, |
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60 | handler, |
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61 | the_thread->Object.id, |
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62 | NULL |
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63 | ); |
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64 | |
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65 | _Watchdog_Insert_ticks( &the_thread->Timer, timeout ); |
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66 | } |
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67 | |
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68 | /* |
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69 | * Now enqueue the thread per the discipline for this thread queue. |
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70 | */ |
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71 | if ( the_thread_queue->discipline == THREAD_QUEUE_DISCIPLINE_PRIORITY ) |
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72 | enqueue_p = _Thread_queue_Enqueue_priority; |
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73 | else /* must be THREAD_QUEUE_DISCIPLINE_FIFO */ |
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74 | enqueue_p = _Thread_queue_Enqueue_fifo; |
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75 | |
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76 | sync_state = (*enqueue_p)( the_thread_queue, the_thread, &level ); |
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77 | if ( sync_state != THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED ) |
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78 | _Thread_blocking_operation_Cancel( sync_state, the_thread, level ); |
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79 | } |
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