source: rtems/cpukit/score/src/threadq.c @ da42259

4.104.115
Last change on this file since da42259 was 3168deaa, checked in by Joel Sherrill <joel.sherrill@…>, on 01/22/08 at 18:28:53

2008-01-22 Joel Sherrill <joel.sherrill@…>

  • rtems/include/rtems/rtems/event.h, rtems/inline/rtems/rtems/eventset.inl, rtems/src/event.c, rtems/src/eventseize.c, rtems/src/eventsurrender.c, rtems/src/eventtimeout.c, score/Makefile.am, score/preinstall.am, score/include/rtems/score/interr.h, score/include/rtems/score/thread.h, score/include/rtems/score/threadq.h, score/include/rtems/score/tqdata.h, score/inline/rtems/score/threadq.inl, score/inline/rtems/score/tqdata.inl, score/src/threadq.c, score/src/threadqdequeue.c, score/src/threadqdequeuefifo.c, score/src/threadqdequeuepriority.c, score/src/threadqenqueue.c, score/src/threadqenqueuefifo.c, score/src/threadqenqueuepriority.c, score/src/threadqextract.c, score/src/threadqextractfifo.c, score/src/threadqextractpriority.c, score/src/threadqextractwithproxy.c, score/src/threadqfirst.c, score/src/threadqfirstfifo.c, score/src/threadqfirstpriority.c, score/src/threadqflush.c, score/src/threadqrequeue.c, score/src/threadqtimeout.c: Refactor thread queue enqueue and event blocking synchronization critical sections. This resulted in three copies of essentially the same hard to test critical section code becoming the one shared routine _Thread_blocking_operation_Cancel. In addition, the thread queue and event code now share a common synchronization enumerated type. Along the way, switches were reworked to eliminate dead code generated by gcc and comments and copyrights were updated.
  • score/include/rtems/score/threadsync.h, score/src/threadblockingoperationcancel.c: New files.
  • Property mode set to 100644
File size: 1.7 KB
Line 
1/*
2 *  Thread Queue Handler
3 *
4 *
5 *  COPYRIGHT (c) 1989-2008.
6 *  On-Line Applications Research Corporation (OAR).
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.rtems.com/license/LICENSE.
11 *
12 *  $Id$
13 */
14
15#if HAVE_CONFIG_H
16#include "config.h"
17#endif
18
19#include <rtems/system.h>
20#include <rtems/score/chain.h>
21#include <rtems/score/isr.h>
22#include <rtems/score/object.h>
23#include <rtems/score/states.h>
24#include <rtems/score/thread.h>
25#include <rtems/score/threadq.h>
26#include <rtems/score/tqdata.h>
27
28/*PAGE
29 *
30 *  _Thread_queue_Initialize
31 *
32 *  This routine initializes the specified threadq.
33 *
34 *  Input parameters:
35 *    the_thread_queue      - pointer to a threadq header
36 *    discipline            - queueing discipline
37 *    state                 - state of waiting threads
38 *    timeout_status        - return on a timeout
39 *
40 *  Output parameters: NONE
41 */
42
43void _Thread_queue_Initialize(
44  Thread_queue_Control         *the_thread_queue,
45  Thread_queue_Disciplines      the_discipline,
46  States_Control                state,
47  uint32_t                      timeout_status
48)
49{
50  the_thread_queue->state          = state;
51  the_thread_queue->discipline     = the_discipline;
52  the_thread_queue->timeout_status = timeout_status;
53  the_thread_queue->sync_state     = THREAD_BLOCKING_OPERATION_SYNCHRONIZED;
54
55  if ( the_discipline == THREAD_QUEUE_DISCIPLINE_PRIORITY ) {
56    uint32_t   index;
57
58    for( index=0 ;
59         index < TASK_QUEUE_DATA_NUMBER_OF_PRIORITY_HEADERS ;
60         index++)
61      _Chain_Initialize_empty( &the_thread_queue->Queues.Priority[index] );
62  } else { /* must be THREAD_QUEUE_DISCIPLINE_FIFO */
63    _Chain_Initialize_empty( &the_thread_queue->Queues.Fifo );
64  }
65
66}
Note: See TracBrowser for help on using the repository browser.