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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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 files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Robb Matzke <matzke@llnl.gov>
* Friday, January 30, 1998
*
* Purpose: Tests extendible datasets.
*/
#include "h5test.h"
const char *FILENAME[] = {
"extend",
NULL
};
#define NX 100 /* USE AN EVEN NUMBER!*/
#define NY 100 /* USE AN EVEN NUMBER!*/
/*-------------------------------------------------------------------------
* Function: main
*
* Purpose: Tests extendible datasets
*
* Return: Success: exit(0)
*
* Failure: exit(non-zero)
*
* Programmer: Robb Matzke
* Friday, January 30, 1998
*
* Modifications:
*
*-------------------------------------------------------------------------
*/
int
main (void)
{
hid_t file, dataset, mem_space, file_space, cparms;
hid_t fapl;
int i, j, k, m;
static int buf1[NY][NX], buf2[NX/2][NY/2];
static const hsize_t dims[2] = {NX, NY};
static const hsize_t half_dims[2] = {NX/2, NY/2};
static const hsize_t chunk_dims[2] = {NX/2, NY/2};
static hsize_t maxdims[2] = {H5S_UNLIMITED, H5S_UNLIMITED};
static hsize_t size[2];
hssize_t offset[2];
char filename[1024];
h5_reset();
fapl = h5_fileaccess();
TESTING("dataset extend");
/* Initialize buffer and space */
for (i=0; i<NX; i++) {
for (j=0; j<NY; j++) {
buf1[i][j] = i*NY+j;
}
}
if ((mem_space = H5Screate_simple (2, dims, maxdims))<0) goto error;
/* Create the file */
h5_fixname(FILENAME[0], fapl, filename, sizeof filename);
if ((file = H5Fcreate (filename, H5F_ACC_TRUNC, H5P_DEFAULT, fapl))<0) {
goto error;
}
/* Create the dataset which is originally NX by NY */
if ((cparms = H5Pcreate (H5P_DATASET_CREATE))<0) goto error;
if (H5Pset_chunk (cparms, 2, chunk_dims)<0) goto error;
if ((dataset = H5Dcreate (file, "dataset", H5T_NATIVE_INT, mem_space,
cparms))<0) goto error;
if (H5Pclose (cparms)<0) goto error;
/* Write the data */
for (i=0; i<5; i++) {
for (j=0; j<5; j++) {
/* Extend the dataset */
offset[0] = i * NX;
offset[1] = j * NY;
size[0] = offset[0] + NX;
size[1] = offset[1] + NY;
if (H5Dextend (dataset, size)<0) goto error;
/* Select a hyperslab */
if ((file_space = H5Dget_space (dataset))<0) goto error;
if (H5Sselect_hyperslab (file_space, H5S_SELECT_SET, offset,
NULL, dims, NULL)<0) goto error;
/* Write to the hyperslab */
if (H5Dwrite (dataset, H5T_NATIVE_INT, mem_space, file_space,
H5P_DEFAULT, buf1)<0) goto error;
if (H5Sclose (file_space)<0) goto error;
}
}
if (H5Sclose (mem_space)<0) goto error;
/* Read the data */
if ((mem_space = H5Screate_simple (2, half_dims, NULL))<0) goto error;
if ((file_space = H5Dget_space (dataset))<0) goto error;
for (i=0; i<10; i++) {
for (j=0; j<10; j++) {
/* Select a hyperslab */
offset[0] = i * NX/2;
offset[1] = j * NY/2;
if (H5Sselect_hyperslab (file_space, H5S_SELECT_SET, offset,
NULL, half_dims, NULL)<0) goto error;
/* Read */
if (H5Dread (dataset, H5T_NATIVE_INT, mem_space, file_space,
H5P_DEFAULT, buf2)<0) goto error;
/* Compare */
for (k=0; k<NX/2; k++) {
for (m=0; m<NY/2; m++) {
if (buf2[k][m]!=buf1[(i%2)*NX/2+k][(j%2)*NY/2+m]) {
H5_FAILED();
printf(" i=%d, j=%d, k=%d, m=%d\n", i, j, k, m);
goto error;
}
}
}
}
}
if (H5Dclose (dataset)<0) goto error;
if (H5Fclose (file)<0) goto error;
PASSED();
printf("All extend tests passed.\n");
h5_cleanup(FILENAME, fapl);
return 0;
error:
printf("*** One or more extend tests failed ***\n");
return 1;
}
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