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-rw-r--r--cpukit/score/src/objectgetinfo.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/cpukit/score/src/objectgetinfo.c b/cpukit/score/src/objectgetinfo.c
new file mode 100644
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+++ b/cpukit/score/src/objectgetinfo.c
@@ -0,0 +1,62 @@
+/*
+ * COPYRIGHT (c) 1989-2008.
+ * 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.
+ *
+ * $Id$
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/system.h>
+#include <rtems/score/object.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/wkspace.h>
+
+Objects_Information *_Objects_Get_information(
+ Objects_APIs the_api,
+ uint16_t the_class
+)
+{
+ Objects_Information *info;
+ int the_class_api_maximum;
+
+ if ( !the_class )
+ return NULL;
+
+ /*
+ * This call implicitly validates the_api so we do not call
+ * _Objects_Is_api_valid above here.
+ */
+ the_class_api_maximum = _Objects_API_maximum_class( the_api );
+ if ( the_class_api_maximum == 0 )
+ return NULL;
+
+ if ( the_class > (uint32_t) the_class_api_maximum )
+ return NULL;
+
+ if ( !_Objects_Information_table[ the_api ] )
+ return NULL;
+
+ info = _Objects_Information_table[ the_api ][ the_class ];
+ if ( !info )
+ return NULL;
+
+ /*
+ * In a multprocessing configuration, we may access remote objects.
+ * Thus we may have 0 local instances and still have a valid object
+ * pointer.
+ */
+ #if !defined(RTEMS_MULTIPROCESSING)
+ if ( info->maximum == 0 )
+ return NULL;
+ #endif
+
+ return info;
+}
+