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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.
*
* $Id$
*/
#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();
}
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