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Diffstat (limited to '')
-rw-r--r-- | cpukit/score/src/objectget.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/cpukit/score/src/objectget.c b/cpukit/score/src/objectget.c new file mode 100644 index 0000000000..2962e040a4 --- /dev/null +++ b/cpukit/score/src/objectget.c @@ -0,0 +1,81 @@ +/* + * Object Handler + * + * + * COPYRIGHT (c) 1989-1998. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * 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. + * + * $Id$ + */ + +#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 +} |