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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Purpose: v2 B-tree metadata statistics functions.
*
*/
/****************/
/* Module Setup */
/****************/
#include "H5B2module.h" /* This source code file is part of the H5B2 module */
/***********/
/* Headers */
/***********/
#include "H5private.h" /* Generic Functions */
#include "H5B2pkg.h" /* v2 B-trees */
#include "H5Eprivate.h" /* Error handling */
/****************/
/* Local Macros */
/****************/
/******************/
/* Local Typedefs */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5B2_stat_info
*
* Purpose: Retrieve metadata statistics for a v2 B-tree
*
* Return: SUCCEED (Can't fail)
*
*-------------------------------------------------------------------------
*/
herr_t
H5B2_stat_info(H5B2_t *bt2, H5B2_stat_t *info)
{
FUNC_ENTER_NOAPI_NOINIT_NOERR
/* Check arguments. */
assert(info);
/* Get information about the B-tree */
info->depth = bt2->hdr->depth;
info->nrecords = bt2->hdr->root.all_nrec;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5B2_stat_info() */
/*-------------------------------------------------------------------------
* Function: H5B2_size
*
* Purpose: Iterate over all the records in the B-tree, collecting
* storage info.
*
* Return: SUCCEED/FAIL
*
*-------------------------------------------------------------------------
*/
herr_t
H5B2_size(H5B2_t *bt2, hsize_t *btree_size)
{
H5B2_hdr_t *hdr; /* Pointer to the B-tree header */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI(FAIL)
/* Check arguments. */
assert(bt2);
assert(btree_size);
/* Set the shared v2 B-tree header's file context for this operation */
bt2->hdr->f = bt2->f;
/* Get the v2 B-tree header */
hdr = bt2->hdr;
/* Add size of header to B-tree metadata total */
*btree_size += hdr->hdr_size;
/* Iterate through records */
if (hdr->root.node_nrec > 0) {
/* Check for root node being a leaf */
if (hdr->depth == 0)
*btree_size += hdr->node_size;
else
/* Iterate through nodes */
if (H5B2__node_size(hdr, hdr->depth, &hdr->root, hdr, btree_size) < 0)
HGOTO_ERROR(H5E_BTREE, H5E_CANTLIST, FAIL, "node iteration failed");
} /* end if */
done:
FUNC_LEAVE_NOAPI(ret_value)
} /* H5B2_size() */
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