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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 two datasets (one for version 1 and one for version 2 of
* the layout message), which should have dimensions too large to
* represent in version 1 & 2 of the storage layout message.
* This program is used to create the test file `tlayouto.h5' which
* has truncated dimension information and can be used to verify that the
* library has fixed up the storage size correctly.
* To build the test file, this program MUST be compiled and linked
* with version hdf5-1.6.2 or _earlier_ libraries and the generated test
* file must be put into the 'test' directory in the 1.7+ (or 1.6+) branch
* of the library.
*/
#include "hdf5.h"
#define TESTFILE "tlayouto.h5"
#define SPACE_RANK 2
#define SPACE_DIM0 (8 * 1024 * 1024 * 1024ULL)
#define SPACE_DIM1 ((256 * 1024 * 1024ULL) + 1ULL)
/*-------------------------------------------------------------------------
* Function: main
*
* Purpose:
*
* Return: Success:
*
* Failure:
*
*-------------------------------------------------------------------------
*/
int
main(void)
{
hid_t file, space, dset, dcpl;
herr_t ret;
unsigned rank = SPACE_RANK; /* Rank of dataspace */
hsize_t big_dims[SPACE_RANK] = {SPACE_DIM0, SPACE_DIM1}; /* Large dimensions */
/* Create the file */
file = H5Fcreate(TESTFILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
if (file < 0)
printf("file<0!\n");
/* Create the dataspace (for dataset) */
space = H5Screate_simple(rank, big_dims, NULL);
if (space < 0)
printf("space<0!\n");
/* Create a dataset creation property list */
dcpl = H5Pcreate(H5P_DATASET_CREATE);
if (dcpl < 0)
printf("dcpl<0!\n");
/* Make certain that the dataset's storage doesn't get allocated :-) */
ret = H5Pset_alloc_time(dcpl, H5D_ALLOC_TIME_LATE);
if (ret < 0)
printf("H5Pset_alloc_time() failed!\n");
/* Create the dataset with deferred storage allocation */
dset = H5Dcreate2(file, "Dataset", H5T_NATIVE_INT, space, H5P_DEFAULT, dcpl, H5P_DEFAULT);
if (dset < 0)
printf("dset<0!\n");
H5Dclose(dset);
H5Sclose(space);
H5Pclose(dcpl);
H5Fclose(file);
return 0;
}
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