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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Purpose: This program is run to generate an HDF5 data file with datasets
* that use the B-tree indexing method.
*
* To test compatibility, compile and run this program
* which will generate a file called "btree_idx_1_8.h5".
* Move it to the test directory in the current branch.
* The test: test_idx_compatible() in dsets.c will read it.
*/
#include <assert.h>
#include "hdf5.h"
const char *FILENAME[1] = {
"btree_idx_1_8.h5" /* file with datasets that use B-tree indexing method */
};
#define DSET "dset"
#define DSET_FILTER "dset_filter"
/*
* Function: gen_idx_file
*
* Purpose: Create a file with datasets that use B-tree indexing:
* one dataset: fixed dimension, chunked layout, w/o filters
* one dataset: fixed dimension, chunked layout, w/ filters
*
*/
static void
gen_idx_file(void)
{
hid_t fapl; /* file access property id */
hid_t fid; /* file id */
hid_t sid; /* space id */
hid_t dcpl; /* dataset creation property id */
hid_t did, did2; /* dataset id */
hsize_t dims[1] = {10}; /* dataset dimension */
hsize_t c_dims[1] = {2}; /* chunk dimension */
herr_t status; /* return status */
int i; /* local index variable */
int buf[10]; /* data buffer */
/* Get a copy of the file aaccess property */
fapl = H5Pcreate(H5P_FILE_ACCESS);
assert(fapl >= 0);
/* Set the "use the latest format" bounds for creating objects in the file */
status = H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST);
assert(status >= 0);
/* Create dataset */
fid = H5Fcreate(FILENAME[0], H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
assert(fid >= 0);
/* Create data */
for (i = 0; i < 10; i++)
buf[i] = i;
/* Set chunk */
dcpl = H5Pcreate(H5P_DATASET_CREATE);
assert(dcpl >= 0);
status = H5Pset_chunk(dcpl, 1, c_dims);
assert(status >= 0);
sid = H5Screate_simple(1, dims, NULL);
assert(sid >= 0);
/* Create a 1D dataset */
did = H5Dcreate2(fid, DSET, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT);
assert(did >= 0);
/* Write to the dataset */
status = H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf);
assert(status >= 0);
#if defined(H5_HAVE_FILTER_DEFLATE)
/* set deflate data */
status = H5Pset_deflate(dcpl, 9);
assert(status >= 0);
/* Create and write the dataset */
did2 = H5Dcreate2(fid, DSET_FILTER, H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT);
assert(did2 >= 0);
status = H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf);
assert(status >= 0);
/* Close the dataset */
status = H5Dclose(did2);
assert(status >= 0);
#endif
/* Closing */
status = H5Dclose(did);
assert(status >= 0);
status = H5Sclose(sid);
assert(status >= 0);
status = H5Pclose(dcpl);
assert(status >= 0);
status = H5Pclose(fapl);
assert(status >= 0);
status = H5Fclose(fid);
assert(status >= 0);
} /* gen_idx_file() */
int
main(void)
{
gen_idx_file();
return 0;
}
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