rtemstimer.c

来自「RTEMS (Real-Time Executive for Multiproc」· C语言 代码 · 共 62 行

/*
 *  Timer Manager
 *
 *
 *  COPYRIGHT (c) 1989-2002.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.com/license/LICENSE.
 *
 *  $Id: rtemstimer.c,v 1.19.2.1 2003/09/04 18:47:17 joel Exp $
 */

#include <rtems/system.h>
#include <rtems/rtems/status.h>
#include <rtems/rtems/support.h>
#include <rtems/score/object.h>
#include <rtems/score/thread.h>
#include <rtems/rtems/timer.h>
#include <rtems/score/tod.h>
#include <rtems/score/watchdog.h>

/*PAGE
 *
 *  _Timer_Manager_initialization
 *
 *  This routine initializes all timer manager related data structures.
 *
 *  Input parameters:
 *    maximum_timers - number of timers to initialize
 *
 *  Output parameters:  NONE
 */

void _Timer_Manager_initialization(
  unsigned32 maximum_timers
)
{
  _Objects_Initialize_information(
    &_Timer_Information,       /* object information table */
    OBJECTS_CLASSIC_API,       /* object API */
    OBJECTS_RTEMS_TIMERS,      /* object class */
    maximum_timers,            /* maximum objects of this class */
    sizeof( Timer_Control ),   /* size of this object's control block */
    FALSE,                     /* TRUE if the name is a string */
    RTEMS_MAXIMUM_NAME_LENGTH  /* maximum length of an object name */
#if defined(RTEMS_MULTIPROCESSING)
    ,
    FALSE,                     /* TRUE if this is a global object class */
    NULL                       /* Proxy extraction support callout */
#endif
  );

  /*
   *  Initialize the pointer to the Timer Server TCB to NULL indicating
   *  that task-based timer support is not initialized.
   */

  _Timer_Server = NULL;
}