source: rtems/cpukit/rtems/src/clocktick.c @ a29d2e7

4.104.114.84.95
Last change on this file since a29d2e7 was 1095ec1, checked in by Ralf Corsepius <ralf.corsepius@…>, on 01/18/05 at 09:03:45

Include config.h.

  • Property mode set to 100644
File size: 1.2 KB
Line 
1/*
2 *  Clock Manager
3 *
4 *  COPYRIGHT (c) 1989-1999.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 *  $Id$
12 */
13
14#if HAVE_CONFIG_H
15#include "config.h"
16#endif
17
18#include <rtems/system.h>
19#include <rtems/rtems/status.h>
20#include <rtems/rtems/clock.h>
21#include <rtems/score/isr.h>
22#include <rtems/score/thread.h>
23#include <rtems/score/tod.h>
24#include <rtems/score/watchdog.h>
25
26/*PAGE
27 *
28 *  rtems_clock_tick
29 *
30 *  This directive notifies the executve that a tick has occurred.
31 *  When the tick occurs the time manager updates and maintains
32 *  the calendar time, timeslicing, and any timeout delays.
33 *
34 *  Input parameters:  NONE
35 *
36 *  Output parameters:
37 *    RTEMS_SUCCESSFUL - always succeeds
38 *
39 *  NOTE: This routine only works for leap-years through 2099.
40 */
41
42rtems_status_code rtems_clock_tick( void )
43{
44  _TOD_Tickle_ticks();
45
46  _Watchdog_Tickle_ticks();
47
48  _Thread_Tickle_timeslice();
49
50  if ( _Thread_Is_context_switch_necessary() &&
51       _Thread_Is_dispatching_enabled() )
52    _Thread_Dispatch();
53
54  return RTEMS_SUCCESSFUL;
55}
Note: See TracBrowser for help on using the repository browser.