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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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: Create a dataset compressed with the deflate filter.
* This program is used to create the test file `tdeflate.h5'
* which has a dataset compressed with the "deflate" I/O filter.
* This dataset will be used to verify the correct behavior of
* the library when a filter is not available for a dataset which
* requires it.
*/
#include "h5test.h"
#define TESTFILE "deflate.h5"
/* 2-D dataset with fixed dimensions */
#define SPACE_RANK 2
#define SPACE_DIM1 100
#define SPACE_DIM2 200
#define CHUNK_DIM1 50
#define CHUNK_DIM2 50
/*-------------------------------------------------------------------------
* Function: main
*
* Return: EXIT_SUCCESS/EXIT_FAILURE
*
*-------------------------------------------------------------------------
*/
int
main(void)
{
hid_t fid = H5I_INVALID_HID, sid = H5I_INVALID_HID, did = H5I_INVALID_HID, dcpl_id = H5I_INVALID_HID;
hsize_t dims[SPACE_RANK] = {SPACE_DIM1, SPACE_DIM2};
hsize_t chunk_dims[SPACE_RANK] = {CHUNK_DIM1, CHUNK_DIM2};
size_t i, j; /* Local index variables */
int *data = NULL; /* Dataset data */
/* Initialize the data */
/* (Try for something easily compressible) */
if (NULL == (data = (int *)malloc(SPACE_DIM1 * SPACE_DIM2 * sizeof(int))))
TEST_ERROR;
for (i = 0; i < SPACE_DIM1; i++)
for (j = 0; j < SPACE_DIM2; j++)
data[(i * SPACE_DIM2) + j] = (int)(j % 5);
/* Create the file */
if ((fid = H5Fcreate(TESTFILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
FAIL_STACK_ERROR;
/* Create the dataspace */
if ((sid = H5Screate_simple(SPACE_RANK, dims, NULL)) < 0)
FAIL_STACK_ERROR;
/* Create the dataset creation property list */
if ((dcpl_id = H5Pcreate(H5P_DATASET_CREATE)) < 0)
FAIL_STACK_ERROR;
/* Set up for deflated data */
if (H5Pset_chunk(dcpl_id, 2, chunk_dims) < 0)
FAIL_STACK_ERROR;
if (H5Pset_deflate(dcpl_id, 9) < 0)
FAIL_STACK_ERROR;
/* Create the compressed dataset */
if ((did = H5Dcreate2(fid, "Dataset1", H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl_id, H5P_DEFAULT)) < 0)
FAIL_STACK_ERROR;
/* Write the data to the dataset */
if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data) < 0)
FAIL_STACK_ERROR;
/* Close everything */
if (H5Pclose(dcpl_id) < 0)
FAIL_STACK_ERROR;
if (H5Dclose(did) < 0)
FAIL_STACK_ERROR;
if (H5Sclose(sid) < 0)
FAIL_STACK_ERROR;
if (H5Fclose(fid) < 0)
FAIL_STACK_ERROR;
free(data);
return EXIT_SUCCESS;
error:
if (data)
free(data);
H5E_BEGIN_TRY
{
H5Pclose(dcpl_id);
H5Dclose(did);
H5Sclose(sid);
H5Fclose(fid);
}
H5E_END_TRY
return EXIT_FAILURE;
} /* end main() */
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