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/*
* Timer Manager - rtems_timer_fire_after directive
*
*
* COPYRIGHT (c) 1989-2002.
* 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/rtems/status.h>
#include <rtems/rtems/support.h>
#include <rtems/score/object.h>
#include <rtems/score/thread.h>
#include <rtems/rtems/timer.h>
#include <rtems/score/tod.h>
#include <rtems/score/watchdog.h>
/*PAGE
*
* rtems_timer_fire_after
*
* This directive allows a thread to start a timer.
*
* Input parameters:
* id - timer id
* ticks - interval until routine is fired
* routine - routine to schedule
* user_data - passed as argument to routine when it is fired
*
* Output parameters:
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_timer_fire_after(
Objects_Id id,
rtems_interval ticks,
rtems_timer_service_routine_entry routine,
void *user_data
)
{
Timer_Control *the_timer;
Objects_Locations location;
if ( ticks == 0 )
return RTEMS_INVALID_NUMBER;
the_timer = _Timer_Get( id, &location );
switch ( location ) {
case OBJECTS_REMOTE: /* should never return this */
return RTEMS_INTERNAL_ERROR;
case OBJECTS_ERROR:
return RTEMS_INVALID_ID;
case OBJECTS_LOCAL:
(void) _Watchdog_Remove( &the_timer->Ticker );
the_timer->the_class = TIMER_INTERVAL;
_Watchdog_Initialize( &the_timer->Ticker, routine, id, user_data );
_Watchdog_Insert_ticks( &the_timer->Ticker, ticks );
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}
return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
}
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