2004-11-29 Joel Sherrill <joel@OARcorp.com>

	* libcsupport/src/mallocfreespace.c, rtems/Makefile.am,
	rtems/include/rtems/rtems/region.h, score/Makefile.am,
	score/include/rtems/score/heap.h, score/src/heapgetinfo.c: Add
	capability to return information about just the free blocks in a
	region or heap.  Also changed the semantics of free space available
	to be the largest block of memory that can be allocated.
	* rtems/src/regiongetfreeinfo.c, score/src/heapgetfreeinfo.c: New files.
	: score/include/rtems/score/object.h,
	score/src/objectinitializeinformation.c: Remove warning.

1 files changed, 58 insertions, 0 deletions

diff --git a/cpukit/score/src/heapgetfreeinfo.c b/cpukit/score/src/heapgetfreeinfo.c
new file mode 100644
index 0000000000..8f7fddb059
--- /dev/null
+++ b/cpukit/score/src/heapgetfreeinfo.c
@@ -0,0 +1,58 @@
+/*
+ *  Heap Handler
+ *
+ *  COPYRIGHT (c) 1989-2004.
+ *  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.
+ *
+ *  $Id$
+ */
+
+
+#include <rtems/system.h>
+#include <rtems/score/sysstate.h>
+#include <rtems/score/heap.h>
+
+/*PAGE
+ *
+ *  _Heap_Get_free_information
+ *
+ *  This heap routine returns information about the free blocks
+ *  in the specified heap.
+ *
+ *  Input parameters:
+ *    the_heap  - pointer to heap header.
+ *    info      - pointer to the free block information.
+ *
+ *  Output parameters:
+ *    returns - free block information filled in.
+ */
+
+void _Heap_Get_free_information(
+  Heap_Control        *the_heap,
+  Heap_Information    *info
+)
+{
+  Heap_Block *the_block;
+
+  info->number = 0;
+  info->largest = 0;
+  info->total = 0;
+
+  for ( the_block = the_heap->first;
+        ;
+        the_block = the_block->next ) {
+    if ( the_block == _Heap_Tail( the_heap ) )
+      return;
+    
+    info->number++;
+    info->largest = 0;
+    info->total += the_block->front_flag;
+
+    if ( the_block->front_flag >= info->largest )
+      info->largest = the_block->front_flag;
+  }
+}