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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [exec/] [score/] [src/] [objectget.c] - Rev 593
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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: objectget.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 * * 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 * id - object id to search 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( Objects_Information *information, Objects_Id id, Objects_Locations *location ) { Objects_Control *the_object; unsigned32 index; index = _Objects_Get_index( id ); 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 ); } *location = OBJECTS_ERROR; #if defined(RTEMS_MULTIPROCESSING) _Objects_MP_Is_remote( information, _Objects_Build_id( information->the_class, _Objects_Local_node, index ), location, &the_object ); return the_object; #else return NULL; #endif }
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