source: rtems/cpukit/score/src/coretodget.c @ 2d7ae960

/*
 *  Time of Day (TOD) Handler - get TOD
 *
 *  COPYRIGHT (c) 1989-2008.
 *  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.
 */

#if HAVE_CONFIG_H
#include "config.h"
#endif

#include <rtems/system.h>
#include <rtems/score/isr.h>
#include <rtems/score/timespec.h>
#include <rtems/score/timestamp.h>
#include <rtems/score/tod.h>
#include <rtems/score/watchdog.h>

void _TOD_Get_as_timestamp(
  Timestamp_Control *tod
)
{
  ISR_Level         level;
  Timestamp_Control offset;
  Timestamp_Control now;
  long              nanoseconds;

  /* assume time checked for NULL by caller */

  /* _TOD_Now is the native current time */
  _ISR_Disable( level );
    now = _TOD_Now;
    nanoseconds = (*_Watchdog_Nanoseconds_since_tick_handler)();
  _ISR_Enable( level );

  _Timestamp_Set( &offset, 0, nanoseconds );
  _Timestamp_Add_to( &now, &offset );

  *tod = now;
}