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[/] [or1k/] [trunk/] [rtems/] [c/] [src/] [exec/] [rtems/] [src/] [ratemoncancel.c] - Rev 1765
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/* * Rate Monotonic 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: ratemoncancel.c,v 1.2 2001-09-27 11:59:19 chris Exp $ */ #include <rtems/system.h> #include <rtems/rtems/status.h> #include <rtems/rtems/support.h> #include <rtems/score/isr.h> #include <rtems/score/object.h> #include <rtems/rtems/ratemon.h> #include <rtems/score/thread.h> /*PAGE * * rtems_rate_monotonic_cancel * * This directive allows a thread to cancel a rate monotonic timer. * * Input parameters: * id - rate monotonic id * * Output parameters: * RTEMS_SUCCESSFUL - if successful and caller is not the owning thread * error code - if unsuccessful */ rtems_status_code rtems_rate_monotonic_cancel( Objects_Id id ) { Rate_monotonic_Control *the_period; Objects_Locations location; the_period = _Rate_monotonic_Get( id, &location ); switch ( location ) { case OBJECTS_REMOTE: return RTEMS_INTERNAL_ERROR; /* should never return this */ case OBJECTS_ERROR: return RTEMS_INVALID_ID; case OBJECTS_LOCAL: if ( !_Thread_Is_executing( the_period->owner ) ) { _Thread_Enable_dispatch(); return RTEMS_NOT_OWNER_OF_RESOURCE; } (void) _Watchdog_Remove( &the_period->Timer ); the_period->state = RATE_MONOTONIC_INACTIVE; _Thread_Enable_dispatch(); return RTEMS_SUCCESSFUL; } return RTEMS_INTERNAL_ERROR; /* unreached - only to remove warnings */ }