/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "h5test.h"
#include "vds_swmr.h"
/* Max number of planes in the dataset */
#define N_MAX_PLANES H5S_UNLIMITED
/* Dataset datatypes */
#define SOURCE_DATATYPE H5T_STD_I32LE
#define VDS_DATATYPE H5T_STD_I32LE
/* Starting size of datasets, both source and VDS */
static hsize_t DIMS[N_SOURCES][RANK] = {{0, SM_HEIGHT, WIDTH}, {0, LG_HEIGHT, WIDTH}, {0, SM_HEIGHT, WIDTH},
{0, LG_HEIGHT, WIDTH}, {0, SM_HEIGHT, WIDTH}, {0, LG_HEIGHT, WIDTH}};
static hsize_t VDS_DIMS[RANK] = {0, FULL_HEIGHT, WIDTH};
/* Maximum size of datasets, both source and VDS.
* NOTE: Theoretical (i.e.: H5S_UNLIMITED), not the actual max
* number of planes written out by the writers before they stop.
* That number is specified separately.
*/
static hsize_t MAX_DIMS[N_SOURCES][RANK] = {
{N_MAX_PLANES, SM_HEIGHT, WIDTH}, {N_MAX_PLANES, LG_HEIGHT, WIDTH}, {N_MAX_PLANES, SM_HEIGHT, WIDTH},
{N_MAX_PLANES, LG_HEIGHT, WIDTH}, {N_MAX_PLANES, SM_HEIGHT, WIDTH}, {N_MAX_PLANES, LG_HEIGHT, WIDTH}};
static hsize_t VDS_MAX_DIMS[RANK] = {N_MAX_PLANES, FULL_HEIGHT, WIDTH};
static char SOURCE_DSET_NAME[NAME_LEN] = "source_dset";
static int32_t FILL_VALUES[N_SOURCES] = {-1, -2, -3, -4, -5, -6};
static int32_t VDS_FILL_VALUE = -9;
int
main(void)
{
hid_t faplid = -1; /* file access property list ID (all files) */
hid_t src_sid = -1; /* source dataset's dataspace ID */
hid_t src_dcplid = -1; /* source dataset property list ID */
hid_t vds_sid = -1; /* VDS dataspace ID */
hid_t vds_dcplid = -1; /* VDS dataset property list ID */
hid_t fid = -1; /* HDF5 file ID */
hid_t did = -1; /* dataset ID */
hsize_t start[RANK]; /* starting point for hyperslab */
int map_start = -1; /* starting point in the VDS map */
int i; /* iterator */
/* Start by creating the virtual dataset (VDS) dataspace and creation
* property list. The individual source datasets are then created
* and the VDS map (stored in the VDS property list) is updated.
*/
/* Create VDS dcpl */
if ((vds_dcplid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
TEST_ERROR;
if (H5Pset_fill_value(vds_dcplid, VDS_DATATYPE, &VDS_FILL_VALUE) < 0)
TEST_ERROR;
/* Create VDS dataspace */
if ((vds_sid = H5Screate_simple(RANK, VDS_DIMS, VDS_MAX_DIMS)) < 0)
TEST_ERROR;
/************************************
* Create source files and datasets *
************************************/
start[0] = 0;
start[1] = 0;
start[2] = 0;
map_start = 0;
/* All SWMR files need to use the latest file format */
if ((faplid = h5_fileaccess()) < 0)
TEST_ERROR;
if (H5Pset_libver_bounds(faplid, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
TEST_ERROR;
for (i = 0; i < N_SOURCES; i++) {
/* source dataset dcpl */
if ((src_dcplid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
TEST_ERROR;
if (H5Pset_chunk(src_dcplid, RANK, PLANES[i]) < 0)
TEST_ERROR;
if (H5Pset_fill_value(src_dcplid, SOURCE_DATATYPE, &FILL_VALUES[i]) < 0)
TEST_ERROR;
/* Use a mix of compressed and uncompressed datasets */
if (0 != i % 2)
if (H5Pset_deflate(src_dcplid, COMPRESSION_LEVEL) < 0)
TEST_ERROR;
/* Create source file, dataspace, and dataset */
if ((fid = H5Fcreate(FILE_NAMES[i], H5F_ACC_TRUNC, H5P_DEFAULT, faplid)) < 0)
TEST_ERROR;
if ((src_sid = H5Screate_simple(RANK, DIMS[i], MAX_DIMS[i])) < 0)
TEST_ERROR;
if ((did = H5Dcreate2(fid, SOURCE_DSET_NAME, SOURCE_DATATYPE, src_sid, H5P_DEFAULT, src_dcplid,
H5P_DEFAULT)) < 0)
TEST_ERROR;
/* set up hyperslabs for source and destination datasets */
start[1] = 0;
if (H5Sselect_hyperslab(src_sid, H5S_SELECT_SET, start, NULL, MAX_DIMS[i], NULL) < 0)
TEST_ERROR;
start[1] = (hsize_t)map_start;
if (H5Sselect_hyperslab(vds_sid, H5S_SELECT_SET, start, NULL, MAX_DIMS[i], NULL) < 0)
TEST_ERROR;
if (PLANES[i][1] > INT_MAX)
TEST_ERROR;
map_start += (int)PLANES[i][1];
/* Add VDS mapping */
if (H5Pset_virtual(vds_dcplid, vds_sid, FILE_NAMES[i], SOURCE_DSET_PATH, src_sid) < 0)
TEST_ERROR;
/* close */
if (H5Sclose(src_sid) < 0)
TEST_ERROR;
if (H5Pclose(src_dcplid) < 0)
TEST_ERROR;
if (H5Dclose(did) < 0)
TEST_ERROR;
if (H5Fclose(fid) < 0)
TEST_ERROR;
} /* end for */
/*******************
* Create VDS file *
*******************/
/* file */
if ((fid = H5Fcreate(VDS_FILE_NAME, H5F_ACC_TRUNC, H5P_DEFAULT, faplid)) < 0)
TEST_ERROR;
/* dataset */
if ((did = H5Dcreate2(fid, VDS_DSET_NAME, VDS_DATATYPE, vds_sid, H5P_DEFAULT, vds_dcplid, H5P_DEFAULT)) <
0)
TEST_ERROR;
/* close */
if (H5Pclose(faplid) < 0)
TEST_ERROR;
if (H5Pclose(vds_dcplid) < 0)
TEST_ERROR;
if (H5Sclose(vds_sid) < 0)
TEST_ERROR;
if (H5Dclose(did) < 0)
TEST_ERROR;
if (H5Fclose(fid) < 0)
TEST_ERROR;
return EXIT_SUCCESS;
error:
H5E_BEGIN_TRY
{
if (faplid >= 0)
(void)H5Pclose(faplid);
if (src_sid >= 0)
(void)H5Sclose(src_sid);
if (src_dcplid >= 0)
(void)H5Pclose(src_dcplid);
if (vds_sid >= 0)
(void)H5Sclose(vds_sid);
if (vds_dcplid >= 0)
(void)H5Pclose(vds_dcplid);
if (fid >= 0)
(void)H5Fclose(fid);
if (did >= 0)
(void)H5Dclose(did);
}
H5E_END_TRY
return EXIT_FAILURE;
} /* end main */