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/**
* @file
*
* @brief Adjust the Time of Time
* @ingroup ScoreTOD
*/
/*
* COPYRIGHT (c) 1989-2014.
* 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/threaddispatch.h>
#include <rtems/score/todimpl.h>
void _TOD_Adjust(
const Timestamp_Control delta
)
{
Timestamp_Control tod;
Timestamp_Control *tod_ptr;
/*
* Currently, RTEMS does the adjustment in one movement.
* Given interest, requirements, and sponsorship, a future
* enhancement would be to adjust the time in smaller increments
* at each clock tick. Until then, there is no outstanding
* adjustment.
*/
/*
* This prevents context switches while we are adjusting the TOD
*/
_Thread_Disable_dispatch();
tod_ptr = _TOD_Get_with_nanoseconds( &tod, &_TOD.now );
_Timestamp_Add_to( tod_ptr, &delta );
_TOD_Set_with_timestamp( tod_ptr );
_Thread_Enable_dispatch();
}
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