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/**
* @file
*
* @brief Set Time of Day Given a Timestamp
*
* @ingroup ScoreTOD
*/
/* COPYRIGHT (c) 1989-2007.
* 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.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/score/todimpl.h>
#include <rtems/score/threaddispatch.h>
#include <rtems/score/watchdogimpl.h>
void _TOD_Set_with_timestamp(
const Timestamp_Control *tod_as_timestamp
)
{
struct timespec ts;
uint32_t nanoseconds;
Watchdog_Interval seconds_next;
Watchdog_Interval seconds_now;
Watchdog_Header *header;
_Timestamp_To_timespec( tod_as_timestamp, &ts );
nanoseconds = ts.tv_nsec;
seconds_next = ts.tv_sec;
_Thread_Disable_dispatch();
seconds_now = _TOD_Seconds_since_epoch();
_Timecounter_Set_clock( &ts );
header = &_Watchdog_Seconds_header;
if ( seconds_next < seconds_now )
_Watchdog_Adjust_backward( header, seconds_now - seconds_next );
else
_Watchdog_Adjust_forward( header, seconds_next - seconds_now );
_TOD.seconds_trigger = nanoseconds;
_TOD.is_set = true;
_Thread_Enable_dispatch();
}
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