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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [score/] [src/] [objectgetbyindex.c] - Rev 619
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/* * Object Handler * * * 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: objectgetbyindex.c,v 1.2 2001-09-27 11:59:34 chris Exp $ */ #include <rtems/system.h> #include <rtems/score/address.h> #include <rtems/score/chain.h> #include <rtems/score/object.h> #if defined(RTEMS_MULTIPROCESSING) #include <rtems/score/objectmp.h> #endif #include <rtems/score/thread.h> #include <rtems/score/wkspace.h> #include <rtems/score/sysstate.h> #include <rtems/score/isr.h> /*PAGE * * _Objects_Get_by_index * * This routine sets the object pointer for the given * object id based on the given object information structure. * * Input parameters: * information - pointer to entry in table for this class * index - object index to check for * location - address of where to store the location * * Output parameters: * returns - address of object if local * location - one of the following: * OBJECTS_ERROR - invalid object ID * OBJECTS_REMOTE - remote object * OBJECTS_LOCAL - local object */ Objects_Control *_Objects_Get_by_index( Objects_Information *information, unsigned32 index, Objects_Locations *location ) { Objects_Control *the_object; if ( information->maximum >= index ) { _Thread_Disable_dispatch(); if ( (the_object = _Objects_Get_local_object( information, index )) != NULL ) { *location = OBJECTS_LOCAL; return( the_object ); } _Thread_Enable_dispatch(); *location = OBJECTS_ERROR; return( NULL ); } /* * With just an index, you can't access a remote object. */ _Thread_Enable_dispatch(); *location = OBJECTS_ERROR; return NULL; }
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