1 files changed, 64 insertions, 0 deletions
diff --git a/c/src/exec/score/src/heapsizeofuserarea.c b/c/src/exec/score/src/heapsizeofuserarea.c
new file mode 100644
index 0000000000..da664ffec1
--- /dev/null
+++ b/c/src/exec/score/src/heapsizeofuserarea.c
@@ -0,0 +1,64 @@
+/*
+ *  Heap 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/sysstate.h>
+#include <rtems/score/heap.h>
+
+/*PAGE
+ *
+ *  _Heap_Size_of_user_area
+ *
+ *  This kernel routine returns the size of the memory area
+ *  given heap block.
+ *
+ *  Input parameters:
+ *    the_heap         - pointer to heap header
+ *    starting_address - starting address of the memory block to free.
+ *    size             - pointer to size of area
+ *
+ *  Output parameters:
+ *    size  - size of area filled in
+ *    TRUE  - if starting_address is valid heap address
+ *    FALSE - if starting_address is invalid heap address
+ */
+
+boolean _Heap_Size_of_user_area(
+  Heap_Control        *the_heap,
+  void                *starting_address,
+  unsigned32          *size
+)
+{
+  Heap_Block        *the_block;
+  Heap_Block        *next_block;
+  unsigned32         the_size;
+
+  the_block = _Heap_User_block_at( starting_address );
+  
+  if ( !_Heap_Is_block_in( the_heap, the_block ) ||
+        _Heap_Is_block_free( the_block ) )
+    return( FALSE );
+
+  the_size   = _Heap_Block_size( the_block );
+  next_block = _Heap_Block_at( the_block, the_size );
+
+  if ( !_Heap_Is_block_in( the_heap, next_block ) ||
+       (the_block->front_flag != next_block->back_flag) )
+    return( FALSE );
+
+  *size = the_size;
+  return( TRUE );
+}
+