hdf5/test/gen_specmetaread.c
Larry Knox 89fbe00dec Merge pull request #426 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:hdf5_1_10 to hdf5_1_10
* commit '54957d37f5aa73912763dbb6e308555e863c43f4':
  Commit copyright header change for src/H5PLpkg.c which was added after running script to make changes.
  Add new files in release_docs to MANIFEST. Cimmit changes to Makefile.in(s) and H5PL.c that resulted from running autogen.sh.
  Merge pull request #407 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:hdf5_1_10_1 to hdf5_1_10_1
  Change copyright headers to replace url referring to file to be removed and replace it with new url for COPYING file.
2017-04-25 16:05:36 -05:00

95 lines
3.1 KiB
C

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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);
assert(ret >= 0);
ret = H5Pset_small_data_block_size(fapl, (hsize_t)0);
assert(ret >= 0);
/* Create file */
fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
assert(fid > 0);
/* Close FAPL */
ret = H5Pclose(fapl);
assert(ret >= 0);
/* Create dataspace */
space = H5Screate_simple(1, dim, NULL);
assert(space > 0);
/* Create dataset #1 */
did = H5Dcreate2(fid, "dset1", H5T_NATIVE_UINT, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
assert(did > 0);
ret = H5Dwrite(did, H5T_NATIVE_UINT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data);
assert(ret >= 0);
ret = H5Dclose(did);
assert(ret >= 0);
/* Create dataset #2 */
did = H5Dcreate2(fid, "dset2", H5T_NATIVE_UINT, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
assert(did > 0);
ret = H5Dwrite(did, H5T_NATIVE_UINT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data);
assert(ret >= 0);
ret = H5Dclose(did);
assert(ret >= 0);
/* Close dataspace */
ret = H5Sclose(space);
assert(ret >= 0);
/* Close file */
ret = H5Fclose(fid);
assert(ret >= 0);
return 0;
}