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96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* Programmer: Quincey Koziol <koziol@hdfgroup.org>
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* Thursday, October 8, 2009
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*
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* Purpose: Create a file with a dataset who's raw data immediately follows
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* its object header, so that when the dataset is unlinked from its parent
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* group, a speculative read of the object header would get the raw data
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* into the metadata accumulator, "polluting" it.
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* To build the test file, this program MUST be compiled and linked with
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* the library on the trunk as of when this file is checked in.
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*/
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#include <assert.h>
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#include "testhdf5.h"
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#define FILENAME "specmetaread.h5"
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#define DIM 10
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int
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main(void)
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{
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hid_t fid;
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hid_t fapl;
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hid_t did;
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hid_t space;
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hsize_t dim[1] = {DIM};
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unsigned data[DIM];
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unsigned u;
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herr_t H5_ATTR_NDEBUG_UNUSED ret;
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/* Initialize the data */
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for(u = 0; u < DIM; u++)
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data[u] = u;
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/* Create a FAPL with the metadata and small data aggregators turned off */
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fapl = H5Pcreate(H5P_FILE_ACCESS);
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assert(fapl > 0);
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ret = H5Pset_meta_block_size(fapl, (hsize_t)0);
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assert(ret >= 0);
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ret = H5Pset_small_data_block_size(fapl, (hsize_t)0);
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assert(ret >= 0);
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/* Create file */
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fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
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assert(fid > 0);
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/* Close FAPL */
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ret = H5Pclose(fapl);
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assert(ret >= 0);
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/* Create dataspace */
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space = H5Screate_simple(1, dim, NULL);
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assert(space > 0);
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/* Create dataset #1 */
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did = H5Dcreate2(fid, "dset1", H5T_NATIVE_UINT, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
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assert(did > 0);
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ret = H5Dwrite(did, H5T_NATIVE_UINT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data);
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assert(ret >= 0);
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ret = H5Dclose(did);
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assert(ret >= 0);
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/* Create dataset #2 */
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did = H5Dcreate2(fid, "dset2", H5T_NATIVE_UINT, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
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assert(did > 0);
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ret = H5Dwrite(did, H5T_NATIVE_UINT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data);
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assert(ret >= 0);
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ret = H5Dclose(did);
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assert(ret >= 0);
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/* Close dataspace */
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ret = H5Sclose(space);
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assert(ret >= 0);
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/* Close file */
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ret = H5Fclose(fid);
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assert(ret >= 0);
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return 0;
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}
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