vchoi_fork

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

 * 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 COPYING file, which can be found at the root of the source code       *

 * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.  *

 * If you do not have access to either file, you may request a copy from     *

 * help@hdfgroup.org.                                                        *

 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

​

/*

 * Programmer:  Quincey Koziol <koziol@hdfgroup.org>

 *              Thursday, October  8, 2009

 *

 * Purpose: Create a file with a dataset who's raw data immediately follows

 *      its object header, so that when the dataset is unlinked from its parent

 *      group, a speculative read of the object header would get the raw data

 *      into the metadata accumulator, "polluting" it.

 *      To build the test file, this program MUST be compiled and linked with

 *      the library on the trunk as of when this file is checked in.

 */

​

#include "hdf5.h"

#include <assert.h>

​

#define FILENAME        "specmetaread.h5"

#define DIM             10

​

int

main(void)

{

    hid_t   fid;

    hid_t   fapl;

    hid_t       did;

    hid_t   space;

    hsize_t     dim[1] = {DIM};

    unsigned    data[DIM];

    unsigned    u;

    herr_t      ret;         /* Generic return value */

​

    /* Initialize the data */

    for(u = 0; u < DIM; u++)

    data[u] = u;

​

    /* Create a FAPL with the metadata and small data aggregators turned off */

    fapl = H5Pcreate(H5P_FILE_ACCESS);

    assert(fapl > 0);

    ret = H5Pset_meta_block_size(fapl, (hsize_t)0);