Files
hdf5/src/H5B2stat.c
Quincey Koziol fbd4cf9bfe [svn-r17849] Description:
Bring r17848 from trunk to 1.8 branch:

	Further refactoring v2 B-trees so that they can get context to the
encode/decode client callbacks:

	- Switch tests to using refactored routines

Tested on:
       FreeBSD/32 6.3 (duty) in debug mode
       FreeBSD/64 6.3 (liberty) w/C++ & FORTRAN, in debug mode
       Linux/32 2.6 (jam) w/PGI compilers, w/default API=1.8.x,
               w/C++ & FORTRAN, w/threadsafe, in debug mode
       Linux/64-amd64 2.6 (smirom) w/Intel compilers, w/default API=1.6.x,
               w/C++ & FORTRAN, in production mode
       Solaris/32 2.10 (linew) w/deprecated symbols disabled, w/C++ & FORTRAN,
               w/szip filter, in production mode
       Linux/64-ia64 2.6 (cobalt) w/Intel compilers, w/C++ & FORTRAN,
               in production mode
       Linux/64-ia64 2.4 (tg-login3) w/parallel, w/FORTRAN, in debug mode
       Linux/64-amd64 2.6 (abe) w/parallel, w/FORTRAN, in production mode
       Mac OS X/32 10.6.1 (amazon) in debug mode
       Mac OS X/32 10.6.1 (amazon) w/C++ & FORTRAN, w/threadsafe,
               in production mode
2009-11-07 09:43:22 -05:00

153 lines
4.3 KiB
C
Raw Blame History

This file contains invisible Unicode characters
This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* 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 */
/******************/
/********************/
/* Package Typedefs */
/********************/
/********************/
/* Local Prototypes */
/********************/
/*********************/
/* Package Variables */
/*********************/
/*****************************/
/* Library Private Variables */
/*****************************/
/*******************/
/* Local Variables */
/*******************/
/*-------------------------------------------------------------------------
* Function: H5B2_stat_info_2
*
* Purpose: Retrieve metadata statistics for a v2 B-tree
*
* Return: Success: non-negative
* Failure: negative
*
* Programmer: Quincey Koziol
* Monday, March 6, 2006
*
*-------------------------------------------------------------------------
*/
herr_t
H5B2_stat_info_2(H5B2_t *bt2, hid_t dxpl_id, H5B2_stat_t *info)
{
H5B2_hdr_t *hdr; /* Pointer to the B-tree header */
FUNC_ENTER_NOAPI_NOINIT_NOFUNC(H5B2_stat_info_2)
/* Check arguments. */
HDassert(info);
/* 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;
/* Get information about the B-tree */
info->depth = hdr->depth;
info->nrecords = hdr->root.all_nrec;
FUNC_LEAVE_NOAPI(SUCCEED)
} /* H5B2_stat_info_2() */
/*-------------------------------------------------------------------------
* Function: H5B2_stat_info
*
* Purpose: Retrieve metadata statistics for a v2 B-tree
*
* 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, haddr_t addr, H5B2_stat_t *info)
{
H5B2_hdr_t *hdr = NULL; /* Pointer to the B-tree header */
herr_t ret_value = SUCCEED; /* Return value */
FUNC_ENTER_NOAPI_NOINIT(H5B2_stat_info)
/* Check arguments. */
HDassert(f);
HDassert(H5F_addr_defined(addr));
HDassert(info);
/* Look up the B-tree header */
if(NULL == (hdr = (H5B2_hdr_t *)H5AC_protect(f, dxpl_id, H5AC_BT2_HDR, addr, NULL, NULL, H5AC_READ)))
HGOTO_ERROR(H5E_BTREE, H5E_CANTPROTECT, FAIL, "unable to load B-tree header")
/* Get information about the B-tree */
info->depth = hdr->depth;
info->nrecords = hdr->root.all_nrec;
done:
/* Release B-tree header node */
if(hdr && H5AC_unprotect(f, dxpl_id, H5AC_BT2_HDR, addr, hdr, 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() */