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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Jan-Willem Blokland
* December 1, 2020
*
* Purpose: Test writing compounded attribute followed by
* writing data with a data transform function.
*/
#include "h5test.h"
#define FILENAME "cmpd_dtransform.h5"
#define LENGTH 11
typedef struct {
char name[64];
char unit[64];
} att_t;
int
main(void)
{
hsize_t dima[] = { 1 };
hsize_t dims[] = { LENGTH };
hid_t str_dtyp_id, att_dtyp_id, file_id, fspace_id, dset_id, att_dspc_id, att_attr_id, dxpl_id;
/* Compound datatype */
att_t *atts = HDmalloc(sizeof(att_t));
HDstrcpy(atts[0].name, "Name");
HDstrcpy(atts[0].unit, "Unit");
/* String type */
if ((str_dtyp_id = H5Tcopy(H5T_C_S1)) < 0)
TEST_ERROR;
H5Tset_size(str_dtyp_id, 64);
/* Attribute type */
if ((att_dtyp_id = H5Tcreate(H5T_COMPOUND, sizeof(att_t))) < 0)
TEST_ERROR;
H5Tinsert(att_dtyp_id, "NAME", HOFFSET(att_t, name), str_dtyp_id);
H5Tinsert(att_dtyp_id, "UNIT", HOFFSET(att_t, unit), str_dtyp_id);
/* Create file. */
if ((file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
TEST_ERROR;
/* Create file dataspace. */
if ((fspace_id = H5Screate_simple(1, dims, NULL)) < 0)
TEST_ERROR;
/* Create dataset. */
if ((dset_id = H5Dcreate2(file_id, "test_dset", H5T_NATIVE_INT, fspace_id,
H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
TEST_ERROR;
/* Write the attribute (compound) to the dataset */
if ((att_dspc_id = H5Screate_simple(1, dima, NULL)) < 0)
TEST_ERROR;
if ((att_attr_id = H5Acreate2(dset_id, "ATTRIBUTES", att_dtyp_id, att_dspc_id,
H5P_DEFAULT, H5P_DEFAULT)) < 0)
TEST_ERROR;
if (H5Awrite(att_attr_id, att_dtyp_id, atts) < 0)
TEST_ERROR;
/* Create dataset transfer property list */
const char *expr = "2*x";
if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
TEST_ERROR;
if (H5Pset_data_transform(dxpl_id, expr) < 0) {
HDprintf("**** ERROR: H5Pset_data_transform (expression: %s) ****\n", expr);
TEST_ERROR;
}
int *data = HDmalloc(LENGTH * sizeof(int));
int *data_res = HDmalloc(LENGTH * sizeof(int));
for (unsigned i = 0; i < LENGTH; i++) {
data[i] = 10;
data_res[i] = 2 * data[i];
}
/* Write the data */
if (H5Dwrite(dset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, dxpl_id, data) < 0)
TEST_ERROR;
/* Read attribute */
att_t *atts_res =HDmalloc(sizeof(att_t));
if (H5Aread(att_attr_id, att_dtyp_id, atts_res) < 0)
TEST_ERROR;
/* Verify attribute */
if (HDstrcmp(atts_res[0].name, atts[0].name) != 0)
TEST_ERROR;
if (HDstrcmp(atts_res[0].unit, atts[0].unit) != 0)
TEST_ERROR;
/* Read the data */
if (H5Dread(dset_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data) < 0)
TEST_ERROR;
/* Verify data */
for (unsigned idx = 0; idx < LENGTH; idx++) {
if (data[idx] != data_res[idx])
TEST_ERROR;
}
HDfree(atts);
HDfree(atts_res);
HDfree(data);
HDfree(data_res);
/* Close all identifiers. */
H5Pclose(dxpl_id);
H5Aclose(att_attr_id);
H5Sclose(att_dspc_id);
H5Dclose(dset_id);
H5Sclose(fspace_id);
H5Fclose(file_id);
H5Tclose(att_dtyp_id);
H5Tclose(str_dtyp_id);
return 0;
error:
return 1;
}
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