/*
|
/*
|
* Rate Monotonic Manager
|
* Rate Monotonic Manager
|
*
|
*
|
*
|
*
|
* COPYRIGHT (c) 1989-1999.
|
* COPYRIGHT (c) 1989-1999.
|
* On-Line Applications Research Corporation (OAR).
|
* On-Line Applications Research Corporation (OAR).
|
*
|
*
|
* The license and distribution terms for this file may be
|
* The license and distribution terms for this file may be
|
* found in the file LICENSE in this distribution or at
|
* found in the file LICENSE in this distribution or at
|
* http://www.OARcorp.com/rtems/license.html.
|
* http://www.OARcorp.com/rtems/license.html.
|
*
|
*
|
* $Id: ratemoncreate.c,v 1.2 2001-09-27 11:59:19 chris Exp $
|
* $Id: ratemoncreate.c,v 1.2 2001-09-27 11:59:19 chris Exp $
|
*/
|
*/
|
|
|
#include <rtems/system.h>
|
#include <rtems/system.h>
|
#include <rtems/rtems/status.h>
|
#include <rtems/rtems/status.h>
|
#include <rtems/rtems/support.h>
|
#include <rtems/rtems/support.h>
|
#include <rtems/score/isr.h>
|
#include <rtems/score/isr.h>
|
#include <rtems/score/object.h>
|
#include <rtems/score/object.h>
|
#include <rtems/rtems/ratemon.h>
|
#include <rtems/rtems/ratemon.h>
|
#include <rtems/score/thread.h>
|
#include <rtems/score/thread.h>
|
|
|
/*PAGE
|
/*PAGE
|
*
|
*
|
* rtems_rate_monotonic_create
|
* rtems_rate_monotonic_create
|
*
|
*
|
* This directive creates a rate monotonic timer and performs
|
* This directive creates a rate monotonic timer and performs
|
* some initialization.
|
* some initialization.
|
*
|
*
|
* Input parameters:
|
* Input parameters:
|
* name - name of period
|
* name - name of period
|
* id - pointer to rate monotonic id
|
* id - pointer to rate monotonic id
|
*
|
*
|
* Output parameters:
|
* Output parameters:
|
* id - rate monotonic id
|
* id - rate monotonic id
|
* RTEMS_SUCCESSFUL - if successful
|
* RTEMS_SUCCESSFUL - if successful
|
* error code - if unsuccessful
|
* error code - if unsuccessful
|
*/
|
*/
|
|
|
rtems_status_code rtems_rate_monotonic_create(
|
rtems_status_code rtems_rate_monotonic_create(
|
rtems_name name,
|
rtems_name name,
|
Objects_Id *id
|
Objects_Id *id
|
)
|
)
|
{
|
{
|
Rate_monotonic_Control *the_period;
|
Rate_monotonic_Control *the_period;
|
|
|
if ( !rtems_is_name_valid( name ) )
|
if ( !rtems_is_name_valid( name ) )
|
return RTEMS_INVALID_NAME;
|
return RTEMS_INVALID_NAME;
|
|
|
_Thread_Disable_dispatch(); /* to prevent deletion */
|
_Thread_Disable_dispatch(); /* to prevent deletion */
|
|
|
the_period = _Rate_monotonic_Allocate();
|
the_period = _Rate_monotonic_Allocate();
|
|
|
if ( !the_period ) {
|
if ( !the_period ) {
|
_Thread_Enable_dispatch();
|
_Thread_Enable_dispatch();
|
return RTEMS_TOO_MANY;
|
return RTEMS_TOO_MANY;
|
}
|
}
|
|
|
the_period->owner = _Thread_Executing;
|
the_period->owner = _Thread_Executing;
|
the_period->state = RATE_MONOTONIC_INACTIVE;
|
the_period->state = RATE_MONOTONIC_INACTIVE;
|
|
|
_Objects_Open( &_Rate_monotonic_Information, &the_period->Object, &name );
|
_Objects_Open( &_Rate_monotonic_Information, &the_period->Object, &name );
|
|
|
*id = the_period->Object.id;
|
*id = the_period->Object.id;
|
_Thread_Enable_dispatch();
|
_Thread_Enable_dispatch();
|
return RTEMS_SUCCESSFUL;
|
return RTEMS_SUCCESSFUL;
|
}
|
}
|
|
|
