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84 lines
3.1 KiB
C
84 lines
3.1 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://www.hdfgroup.org/licenses. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* Purpose: Create two datasets (one for version 1 and one for version 2 of
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* the layout message), which should have dimensions too large to
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* represent in version 1 & 2 of the storage layout message.
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* This program is used to create the test file `tlayouto.h5' which
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* has truncated dimension information and can be used to verify that the
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* library has fixed up the storage size correctly.
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* To build the test file, this program MUST be compiled and linked
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* with version hdf5-1.6.2 or _earlier_ libraries and the generated test
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* file must be put into the 'test' directory in the 1.7+ (or 1.6+) branch
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* of the library.
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*/
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#include "hdf5.h"
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#define TESTFILE "tlayouto.h5"
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#define SPACE_RANK 2
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#define SPACE_DIM0 (8 * 1024 * 1024 * 1024ULL)
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#define SPACE_DIM1 ((256 * 1024 * 1024ULL) + 1ULL)
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/*-------------------------------------------------------------------------
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* Function: main
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*
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* Purpose:
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*
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* Return: Success:
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*
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* Failure:
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*
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*-------------------------------------------------------------------------
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*/
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int
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main(void)
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{
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hid_t file, space, dset, dcpl;
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herr_t ret;
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unsigned rank = SPACE_RANK; /* Rank of dataspace */
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hsize_t big_dims[SPACE_RANK] = {SPACE_DIM0, SPACE_DIM1}; /* Large dimensions */
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/* Create the file */
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file = H5Fcreate(TESTFILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
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if (file < 0)
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printf("file<0!\n");
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/* Create the dataspace (for dataset) */
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space = H5Screate_simple(rank, big_dims, NULL);
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if (space < 0)
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printf("space<0!\n");
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/* Create a dataset creation property list */
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dcpl = H5Pcreate(H5P_DATASET_CREATE);
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if (dcpl < 0)
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printf("dcpl<0!\n");
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/* Make certain that the dataset's storage doesn't get allocated :-) */
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ret = H5Pset_alloc_time(dcpl, H5D_ALLOC_TIME_LATE);
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if (ret < 0)
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printf("H5Pset_alloc_time() failed!\n");
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/* Create the dataset with deferred storage allocation */
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dset = H5Dcreate2(file, "Dataset", H5T_NATIVE_INT, space, H5P_DEFAULT, dcpl, H5P_DEFAULT);
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if (dset < 0)
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printf("dset<0!\n");
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H5Dclose(dset);
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H5Sclose(space);
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H5Pclose(dcpl);
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H5Fclose(file);
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return 0;
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}
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