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/*

 *  Time of Day (TOD) Handler

 *

 *

 *  COPYRIGHT (c) 1989-1999.

 *  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.OARcorp.com/rtems/license.html.

 *

 *  $Id: coretodset.c,v 1.2 2001-09-27 11:59:34 chris Exp $

 */

#include <rtems/system.h>

#include <rtems/score/object.h>

#include <rtems/score/thread.h>

#include <rtems/score/tod.h>

#include <rtems/score/watchdog.h>

/*PAGE

 *

 *  _TOD_Set

 *

 *  This rountine sets the current date and time with the specified

 *  new date and time structure.

 *

 *  Input parameters:

 *    the_tod             - pointer to the time and date structure

 *    seconds_since_epoch - seconds since system epoch

 *

 *  Output parameters: NONE

 */

void _TOD_Set(

  TOD_Control *the_tod,

  Watchdog_Interval  seconds_since_epoch

)

{

  Watchdog_Interval ticks_until_next_second;

  _Thread_Disable_dispatch();

  _TOD_Deactivate();

  if ( seconds_since_epoch < _TOD_Seconds_since_epoch )

    _Watchdog_Adjust_seconds( WATCHDOG_BACKWARD,

       _TOD_Seconds_since_epoch - seconds_since_epoch );

  else

    _Watchdog_Adjust_seconds( WATCHDOG_FORWARD,

       seconds_since_epoch - _TOD_Seconds_since_epoch );

  ticks_until_next_second = _TOD_Ticks_per_second;

  if ( ticks_until_next_second > _TOD_Current.ticks )

    ticks_until_next_second -= _TOD_Current.ticks;

  _TOD_Current             = *the_tod;

  _TOD_Seconds_since_epoch = seconds_since_epoch;

  _TOD_Is_set              = TRUE;

  _TOD_Activate( ticks_until_next_second );

  _Thread_Enable_dispatch();

}