1 | /* tqdata.inl |
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2 | * |
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3 | * This file contains the static inline implementation of the inlined |
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4 | * routines needed to support the Thread Queue Data. |
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5 | * |
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6 | * COPYRIGHT (c) 1989-1999. |
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7 | * On-Line Applications Research Corporation (OAR). |
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8 | * |
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9 | * The license and distribution terms for this file may be |
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10 | * found in the file LICENSE in this distribution or at |
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11 | * http://www.OARcorp.com/rtems/license.html. |
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12 | * |
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13 | * $Id$ |
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14 | */ |
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15 | |
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16 | #ifndef __THREAD_QUEUE_DATA_inl |
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17 | #define __THREAD_QUEUE_DATA_inl |
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18 | |
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19 | /*PAGE |
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20 | * |
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21 | * _Thread_queue_Header_number |
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22 | * |
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23 | * DESCRIPTION: |
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24 | * |
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25 | * This function returns the index of the priority chain on which |
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26 | * a thread of the_priority should be placed. |
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27 | */ |
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28 | |
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29 | RTEMS_INLINE_ROUTINE unsigned32 _Thread_queue_Header_number ( |
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30 | Priority_Control the_priority |
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31 | ) |
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32 | { |
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33 | return (the_priority / TASK_QUEUE_DATA_PRIORITIES_PER_HEADER); |
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34 | } |
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35 | |
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36 | /*PAGE |
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37 | * |
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38 | * _Thread_queue_Is_reverse_search |
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39 | * |
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40 | * DESCRIPTION: |
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41 | * |
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42 | * This function returns TRUE if the_priority indicates that the |
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43 | * enqueue search should start at the front of this priority |
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44 | * group chain, and FALSE if the search should start at the rear. |
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45 | */ |
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46 | |
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47 | RTEMS_INLINE_ROUTINE boolean _Thread_queue_Is_reverse_search ( |
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48 | Priority_Control the_priority |
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49 | ) |
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50 | { |
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51 | return ( the_priority & TASK_QUEUE_DATA_REVERSE_SEARCH_MASK ); |
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52 | } |
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53 | |
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54 | /*PAGE |
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55 | * |
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56 | * _Thread_queue_Enter_critical_section |
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57 | * |
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58 | * DESCRIPTION: |
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59 | * |
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60 | * This routine is invoked to indicate that the specified thread queue is |
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61 | * entering a critical section. |
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62 | */ |
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63 | |
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64 | RTEMS_INLINE_ROUTINE void _Thread_queue_Enter_critical_section ( |
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65 | Thread_queue_Control *the_thread_queue |
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66 | ) |
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67 | { |
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68 | the_thread_queue->sync_state = THREAD_QUEUE_NOTHING_HAPPENED; |
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69 | } |
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70 | |
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71 | #endif |
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72 | /* end of include file */ |
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