source: rtems/cpukit/score/src/coresem.c @ 1e1a91ed

5
Last change on this file since 1e1a91ed was 1e1a91ed, checked in by Sebastian Huber <sebastian.huber@…>, on 03/23/16 at 09:01:31

score: Remove Thread_queue_Queue::operations field

Remove the Thread_queue_Queue::operations field to reduce the size of
this structure. Add a thread queue operations parameter to the
_Thread_queue_First(), _Thread_queue_First_locked(),
_Thread_queue_Enqueue(), _Thread_queue_Dequeue() and
_Thread_queue_Flush() functions. This is a preparation patch to reduce
the size of several synchronization objects.
  • Property mode set to 100644
File size: 1006 bytes
Line 
1/**
2 *  @file
3 *
4 *  @brief Core Semaphore Initialize
5 *  @ingroup ScoreSemaphore
6 */
7
8/*
9 *  COPYRIGHT (c) 1989-1999.
10 *  On-Line Applications Research Corporation (OAR).
11 *
12 *  The license and distribution terms for this file may be
13 *  found in the file LICENSE in this distribution or at
14 *  http://www.rtems.org/license/LICENSE.
15 */
16
17#if HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <rtems/score/coresemimpl.h>
22
23void _CORE_semaphore_Initialize(
24  CORE_semaphore_Control     *the_semaphore,
25  CORE_semaphore_Disciplines  discipline,
26  uint32_t                    maximum_count,
27  uint32_t                    initial_value
28)
29{
30
31  the_semaphore->Attributes.maximum_count = maximum_count;
32  the_semaphore->count = initial_value;
33
34  _Thread_queue_Initialize( &the_semaphore->Wait_queue );
35
36  if ( discipline == CORE_SEMAPHORE_DISCIPLINES_PRIORITY ) {
37    the_semaphore->operations = &_Thread_queue_Operations_priority;
38  } else {
39    the_semaphore->operations = &_Thread_queue_Operations_FIFO;
40  }
41}
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