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/*
* RTEMS Task Manager
*
*
* 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/rtems/status.h>
#include <rtems/rtems/support.h>
#include <rtems/rtems/modes.h>
#include <rtems/score/object.h>
#include <rtems/score/stack.h>
#include <rtems/score/states.h>
#include <rtems/rtems/tasks.h>
#include <rtems/score/thread.h>
#include <rtems/score/threadq.h>
#include <rtems/score/tod.h>
#include <rtems/score/userext.h>
#include <rtems/score/wkspace.h>
#include <rtems/score/apiext.h>
#include <rtems/score/sysstate.h>
/*PAGE
*
* rtems_task_wake_when
*
* This directive blocks the requesting thread until the given date and
* time is reached.
*
* Input parameters:
* time_buffer - pointer to the time and date structure
*
* Output parameters:
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_task_wake_when(
rtems_time_of_day *time_buffer
)
{
Watchdog_Interval seconds;
if ( !_TOD_Is_set )
return RTEMS_NOT_DEFINED;
time_buffer->ticks = 0;
if ( !_TOD_Validate( time_buffer ) )
return RTEMS_INVALID_CLOCK;
seconds = _TOD_To_seconds( time_buffer );
if ( seconds <= _TOD_Seconds_since_epoch )
return RTEMS_INVALID_CLOCK;
_Thread_Disable_dispatch();
_Thread_Set_state( _Thread_Executing, STATES_WAITING_FOR_TIME );
_Watchdog_Initialize(
&_Thread_Executing->Timer,
_Thread_Delay_ended,
_Thread_Executing->Object.id,
NULL
);
_Watchdog_Insert_seconds(
&_Thread_Executing->Timer,
seconds - _TOD_Seconds_since_epoch
);
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}
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