1 files changed, 83 insertions, 0 deletions
diff --git a/cpukit/rtems/src/regiongetsegmentsize.c b/cpukit/rtems/src/regiongetsegmentsize.c
new file mode 100644
index 0000000000..601145128a
--- /dev/null
+++ b/cpukit/rtems/src/regiongetsegmentsize.c
@@ -0,0 +1,83 @@
+/*
+ *  Region Manager
+ *
+ *
+ *  COPYRIGHT (c) 1989-2007.
+ *  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/rtems/status.h>
+#include <rtems/rtems/support.h>
+#include <rtems/score/object.h>
+#include <rtems/rtems/options.h>
+#include <rtems/rtems/region.h>
+#include <rtems/score/states.h>
+#include <rtems/score/apimutex.h>
+
+/*PAGE
+ *
+ *  rtems_region_get_segment_size
+ *
+ *  This directive will return the size of the segment indicated
+ *
+ *  Input parameters:
+ *    id         - region id
+ *    segment    - segment address
+ *    size       - pointer to segment size in bytes
+ *
+ *  Output parameters:
+ *    size       - segment size in bytes filled in
+ *    RTEMS_SUCCESSFUL - if successful
+ *    error code - if unsuccessful
+ */
+
+rtems_status_code rtems_region_get_segment_size(
+  rtems_id   id,
+  void      *segment,
+  uintptr_t *size
+)
+{
+  Objects_Locations        location;
+  rtems_status_code        return_status = RTEMS_SUCCESSFUL;
+  register Region_Control *the_region;
+
+  if ( !segment )
+    return RTEMS_INVALID_ADDRESS;
+
+  if ( !size )
+    return RTEMS_INVALID_ADDRESS;
+
+  _RTEMS_Lock_allocator();
+
+    the_region = _Region_Get( id, &location );
+    switch ( location ) {
+
+      case OBJECTS_LOCAL:
+        if ( !_Heap_Size_of_alloc_area( &the_region->Memory, segment, size ) )
+          return_status = RTEMS_INVALID_ADDRESS;
+        break;
+
+#if defined(RTEMS_MULTIPROCESSING)
+      case OBJECTS_REMOTE:        /* this error cannot be returned */
+        break;
+#endif
+
+      case OBJECTS_ERROR:
+        return_status = RTEMS_INVALID_ID;
+        break;
+    }
+
+  _RTEMS_Unlock_allocator();
+  return return_status;
+}