diff options
Diffstat (limited to 'cpukit/score/src/objectgetnoprotection.c')
-rw-r--r-- | cpukit/score/src/objectgetnoprotection.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/cpukit/score/src/objectgetnoprotection.c b/cpukit/score/src/objectgetnoprotection.c new file mode 100644 index 0000000000..d969477747 --- /dev/null +++ b/cpukit/score/src/objectgetnoprotection.c @@ -0,0 +1,79 @@ +/* + * Object Handler -- Object Get + * + * + * COPYRIGHT (c) 1989-2002. + * 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.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#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_no_protection + * + * 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_no_protection( + Objects_Information *information, + Objects_Id id, + Objects_Locations *location +) +{ + Objects_Control *the_object; + uint32_t index; + + /* + * You can't just extract the index portion or you can get tricked + * by a value between 1 and maximum. + */ + index = id - information->minimum_id + 1; + + if ( information->maximum >= index ) { + if ( (the_object = information->local_table[ index ]) != NULL ) { + *location = OBJECTS_LOCAL; + return the_object; + } + } + + /* + * This isn't supported or required yet for Global objects so + * if it isn't local, we don't find it. + */ + *location = OBJECTS_ERROR; + return NULL; +} |