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/**
* @file
*
* @brief RTEMS Timer Fire When
* @ingroup ClassicTimer
*/
/*
* 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/rtems/timerimpl.h>
#include <rtems/rtems/clock.h>
#include <rtems/score/todimpl.h>
#include <rtems/score/watchdogimpl.h>
rtems_status_code rtems_timer_fire_when(
rtems_id id,
rtems_time_of_day *wall_time,
rtems_timer_service_routine_entry routine,
void *user_data
)
{
Timer_Control *the_timer;
Objects_Locations location;
rtems_interval seconds;
if ( !_TOD_Is_set() )
return RTEMS_NOT_DEFINED;
if ( !_TOD_Validate( wall_time ) )
return RTEMS_INVALID_CLOCK;
if ( !routine )
return RTEMS_INVALID_ADDRESS;
seconds = _TOD_To_seconds( wall_time );
if ( seconds <= _TOD_Seconds_since_epoch() )
return RTEMS_INVALID_CLOCK;
the_timer = _Timer_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
(void) _Watchdog_Remove( &the_timer->Ticker );
the_timer->the_class = TIMER_TIME_OF_DAY;
_Watchdog_Initialize( &the_timer->Ticker, routine, id, user_data );
_Watchdog_Insert_seconds(
&the_timer->Ticker,
seconds - _TOD_Seconds_since_epoch()
);
_Objects_Put( &the_timer->Object );
return RTEMS_SUCCESSFUL;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE: /* should never return this */
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
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