[svn-r12084] Purpose:

Code checkpoint

Description:
    The fractal heap code is reasonably stable and is passing all its
current tests, so checkpoint everything with CVS.

    Also, add "statistics" module for v2 B-trees code, which is only a
stub right now.

Platforms tested:
    FreeBSD 4.11 (sleipnir)
    Mac OSX (amazon)
    Linux 2.4 (chicago)

src/H5B2stat.c

@@ -0,0 +1,107 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have     *
+ * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/* Programmer:  Quincey Koziol <koziol@ncsa.uiuc.edu>
+ *              Monday, March  6, 2006
+ *
+ * Purpose:	v2 B-tree metadata statistics functions.
+ *
+ */
+
+/****************/
+/* Module Setup */
+/****************/
+
+#define H5B2_PACKAGE		/*suppress error about including H5B2pkg  */
+
+/***********/
+/* Headers */
+/***********/
+#include "H5private.h"		/* Generic Functions			*/
+#include "H5B2pkg.h"		/* v2 B-trees				*/
+#include "H5Eprivate.h"		/* Error handling		  	*/
+
+/****************/
+/* Local Macros */
+/****************/
+
+
+/******************/
+/* Local Typedefs */
+/******************/
+
+
+/********************/
+/* Local Prototypes */
+/********************/
+
+
+/*********************/
+/* Package Variables */
+/*********************/
+
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+
+/*******************/
+/* Local Variables */
+/*******************/
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5B2_stat_info
+ *
+ * Purpose:	Retrieve metadata statistics for the fractal heap
+ *
+ * Return:	Success:	non-negative
+ *
+ *		Failure:	negative
+ *
+ * Programmer:	Quincey Koziol
+ *              Monday, March  6, 2006
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5B2_stat_info(H5F_t *f, hid_t dxpl_id, const H5B2_class_t *type,
+    haddr_t addr, H5B2_stat_t *info)
+{
+    H5B2_t	*bt2 = NULL;            /* Pointer to the B-tree header */
+    herr_t	ret_value = SUCCEED;    /* Return value */
+
+    FUNC_ENTER_NOAPI_NOINIT(H5B2_get_root_addr_test)
+
+    /* Check arguments. */
+    HDassert(f);
+    HDassert(type);
+    HDassert(H5F_addr_defined(addr));
+    HDassert(info);
+
+    /* Look up the B-tree header */
+    if(NULL == (bt2 = H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, type, NULL, H5AC_READ)))
+	HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree header")
+
+/* XXX: Fill in metadata statistics for the heap */
+
+done:
+    /* Release B-tree header node */
+    if(bt2 && H5AC_unprotect(f, dxpl_id, H5AC_BT2_HDR, addr, bt2, H5AC__NO_FLAGS_SET) < 0)
+        HDONE_ERROR(H5E_BTREE, H5E_CANTUNPROTECT, FAIL, "unable to release B-tree header info")
+
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* H5B2_stat_info() */
+