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-rw-r--r--cpukit/score/src/objectget.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/cpukit/score/src/objectget.c b/cpukit/score/src/objectget.c
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+/*
+ * 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
+}