/*
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/*
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* Rate Monotonic Manager
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* Rate Monotonic Manager
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*
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*
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*
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*
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* COPYRIGHT (c) 1989-1999.
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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* On-Line Applications Research Corporation (OAR).
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*
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*
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* The license and distribution terms for this file may be
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* found in the file LICENSE in this distribution or at
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* http://www.OARcorp.com/rtems/license.html.
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* http://www.OARcorp.com/rtems/license.html.
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*
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*
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* $Id: ratemoncancel.c,v 1.2 2001-09-27 11:59:19 chris Exp $
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* $Id: ratemoncancel.c,v 1.2 2001-09-27 11:59:19 chris Exp $
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*/
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*/
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#include <rtems/system.h>
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#include <rtems/system.h>
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#include <rtems/rtems/status.h>
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#include <rtems/rtems/status.h>
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#include <rtems/rtems/support.h>
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#include <rtems/rtems/support.h>
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#include <rtems/score/isr.h>
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#include <rtems/score/isr.h>
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#include <rtems/score/object.h>
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#include <rtems/score/object.h>
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#include <rtems/rtems/ratemon.h>
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#include <rtems/rtems/ratemon.h>
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#include <rtems/score/thread.h>
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#include <rtems/score/thread.h>
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/*PAGE
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/*PAGE
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*
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*
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* rtems_rate_monotonic_cancel
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* rtems_rate_monotonic_cancel
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*
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*
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* This directive allows a thread to cancel a rate monotonic timer.
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* This directive allows a thread to cancel a rate monotonic timer.
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*
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*
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* Input parameters:
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* Input parameters:
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* id - rate monotonic id
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* id - rate monotonic id
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*
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*
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* Output parameters:
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* Output parameters:
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* RTEMS_SUCCESSFUL - if successful and caller is not the owning thread
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* RTEMS_SUCCESSFUL - if successful and caller is not the owning thread
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* error code - if unsuccessful
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* error code - if unsuccessful
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*/
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*/
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rtems_status_code rtems_rate_monotonic_cancel(
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rtems_status_code rtems_rate_monotonic_cancel(
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Objects_Id id
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Objects_Id id
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)
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)
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{
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{
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Rate_monotonic_Control *the_period;
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Rate_monotonic_Control *the_period;
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Objects_Locations location;
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Objects_Locations location;
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the_period = _Rate_monotonic_Get( id, &location );
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the_period = _Rate_monotonic_Get( id, &location );
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switch ( location ) {
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switch ( location ) {
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case OBJECTS_REMOTE:
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case OBJECTS_REMOTE:
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return RTEMS_INTERNAL_ERROR; /* should never return this */
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return RTEMS_INTERNAL_ERROR; /* should never return this */
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case OBJECTS_ERROR:
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case OBJECTS_ERROR:
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return RTEMS_INVALID_ID;
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return RTEMS_INVALID_ID;
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case OBJECTS_LOCAL:
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case OBJECTS_LOCAL:
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if ( !_Thread_Is_executing( the_period->owner ) ) {
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if ( !_Thread_Is_executing( the_period->owner ) ) {
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_Thread_Enable_dispatch();
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_Thread_Enable_dispatch();
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return RTEMS_NOT_OWNER_OF_RESOURCE;
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return RTEMS_NOT_OWNER_OF_RESOURCE;
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}
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}
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(void) _Watchdog_Remove( &the_period->Timer );
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(void) _Watchdog_Remove( &the_period->Timer );
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the_period->state = RATE_MONOTONIC_INACTIVE;
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the_period->state = RATE_MONOTONIC_INACTIVE;
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_Thread_Enable_dispatch();
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_Thread_Enable_dispatch();
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return RTEMS_SUCCESSFUL;
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return RTEMS_SUCCESSFUL;
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}
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}
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return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
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return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */
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}
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}
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