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/*
* Timer Manager - rtems_timer_create 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.rtems.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#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>
/*
* rtems_timer_create
*
* This directive creates a timer and performs some initialization.
*
* Input parameters:
* name - timer name
* id - pointer to timer id
*
* Output parameters:
* id - timer id
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_timer_create(
rtems_name name,
rtems_id *id
)
{
Timer_Control *the_timer;
if ( !rtems_is_name_valid( name ) )
return RTEMS_INVALID_NAME;
if ( !id )
return RTEMS_INVALID_ADDRESS;
_Thread_Disable_dispatch(); /* to prevent deletion */
the_timer = _Timer_Allocate();
if ( !the_timer ) {
_Thread_Enable_dispatch();
return RTEMS_TOO_MANY;
}
the_timer->the_class = TIMER_DORMANT;
_Watchdog_Initialize( &the_timer->Ticker, NULL, 0, NULL );
_Objects_Open(
&_Timer_Information,
&the_timer->Object,
(Objects_Name) name
);
*id = the_timer->Object.id;
_Thread_Enable_dispatch();
return RTEMS_SUCCESSFUL;
}
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