source: rtems/cpukit/score/src/coretodget.c @ 3246b0f8

4.11
Last change on this file since 3246b0f8 was 3246b0f8, checked in by Sebastian Huber <sebastian.huber@…>, on Jun 13, 2012 at 9:29:53 AM

score: New structure TOD_Control

Group the global TOD variables (_TOD_Now, _TOD_Uptime, and _TOD_Is_set)
in a structure to reduce address loads in _TOD_Tickle_ticks().

  • Property mode set to 100644
File size: 1.0 KB
Line 
1/*
2 *  Time of Day (TOD) Handler - get TOD
3 *
4 *  COPYRIGHT (c) 1989-2008.
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
12#if HAVE_CONFIG_H
13#include "config.h"
14#endif
15
16#include <rtems/system.h>
17#include <rtems/score/isr.h>
18#include <rtems/score/timespec.h>
19#include <rtems/score/timestamp.h>
20#include <rtems/score/tod.h>
21#include <rtems/score/watchdog.h>
22
23void _TOD_Get_as_timestamp(
24  Timestamp_Control *tod
25)
26{
27  ISR_Level         level;
28  Timestamp_Control offset;
29  Timestamp_Control now;
30  long              nanoseconds;
31
32  /* assume time checked for NULL by caller */
33
34  /* _TOD.now is the native current time */
35  _ISR_Disable( level );
36    now = _TOD.now;
37    nanoseconds = (*_Watchdog_Nanoseconds_since_tick_handler)();
38  _ISR_Enable( level );
39
40  _Timestamp_Set( &offset, 0, nanoseconds );
41  _Timestamp_Add_to( &now, &offset );
42
43  *tod = now;
44}
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