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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* File/dataset generator for VDS use case 5
*
* See the header file for a description.
*/
#include <stdlib.h>
#include <hdf5.h>
#include "UC_common.h"
#include "UC_5.h"
int
main(void)
{
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 */
hid_t msid = -1; /* memory dataspace ID */
hid_t fsid = -1; /* file dataspace ID */
hsize_t extent[RANK]; /* source dataset extents */
hsize_t start[RANK]; /* starting point for hyperslab */
hsize_t stride[RANK]; /* hypserslab stride */
hsize_t count[RANK]; /* hypserslab count */
hsize_t map_start = 0; /* starting point in the VDS map */
int *buffer = NULL; /* data buffer */
int value = -1; /* value written to datasets */
hsize_t n = 0; /* number of elements in a plane */
int i; /* iterator */
int j; /* iterator */
hsize_t k; /* 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)
UC_ERROR
if(H5Pset_fill_value(vds_dcplid, UC_5_VDS_DATATYPE,
&UC_5_VDS_FILL_VALUE) < 0)
UC_ERROR
/* Create VDS dataspace */
if((vds_sid = H5Screate_simple(RANK, UC_5_VDS_DIMS,
UC_5_VDS_MAX_DIMS)) < 0)
UC_ERROR
/*********************************
* Map source files and datasets *
*********************************/
/* Hyperslab array setup */
start[0] = 0;
start[1] = 0;
start[2] = 0;
map_start = 0;
stride[0] = UC_5_N_SOURCES;
stride[1] = 1;
stride[2] = 1;
count[0] = H5S_UNLIMITED;
count[1] = 1;
count[2] = 1;
extent[0] = UC_5_SRC_PLANES;
extent[1] = UC_5_HEIGHT;
extent[2] = UC_5_WIDTH;
for(i = 0; i < UC_5_N_SOURCES; i++) {
/* source dataset dcpl */
if((src_dcplid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
UC_ERROR
if(H5Pset_chunk(src_dcplid, RANK, UC_5_PLANE) < 0)
UC_ERROR
if(H5Pset_fill_value(src_dcplid, UC_5_SOURCE_DATATYPE,
&UC_5_FILL_VALUES[i]) < 0)
UC_ERROR
if(H5Pset_deflate(src_dcplid, COMPRESSION_LEVEL) < 0)
UC_ERROR
/* Create source file, dataspace, and dataset */
if((fid = H5Fcreate(UC_5_FILE_NAMES[i], H5F_ACC_TRUNC,
H5P_DEFAULT, H5P_DEFAULT)) < 0)
UC_ERROR
if((src_sid = H5Screate_simple(RANK, UC_5_SOURCE_DIMS,
UC_5_SOURCE_MAX_DIMS)) < 0)
UC_ERROR
if((did = H5Dcreate2(fid, UC_5_SOURCE_DSET_NAME,
UC_5_SOURCE_DATATYPE, src_sid,
H5P_DEFAULT, src_dcplid, H5P_DEFAULT)) < 0)
UC_ERROR
/* Set the dataset's extent */
if(H5Dset_extent(did, extent) < 0)
UC_ERROR
/* Create a data buffer that represents a plane */
n = UC_5_PLANE[1] * UC_5_PLANE[2];
if(NULL == (buffer = (int *)malloc(n * sizeof(int))))
UC_ERROR
/* Create the memory dataspace */
if((msid = H5Screate_simple(RANK, UC_5_PLANE, NULL)) < 0)
UC_ERROR
/* Get the file dataspace */
if((fsid = H5Dget_space(did)) < 0)
UC_ERROR
/* Write planes to the dataset */
for(j = 0; j < UC_5_SRC_PLANES; j++) {
value = ((i + 1) * 10) + j;
for(k = 0; k < n; k++)
buffer[k] = value;
start[0] = (hsize_t)j;
start[1] = 0;
start[2] = 0;
if(H5Sselect_hyperslab(fsid, H5S_SELECT_SET, start, NULL, UC_5_PLANE, NULL) < 0)
UC_ERROR
if(H5Dwrite(did, H5T_NATIVE_INT, msid, fsid, H5P_DEFAULT, buffer) < 0)
UC_ERROR
} /* end for */
/* set up hyperslabs for source and destination datasets */
start[0] = 0;
start[1] = 0;
start[2] = 0;
if(H5Sselect_hyperslab(src_sid, H5S_SELECT_SET, start, NULL,
UC_5_SOURCE_MAX_DIMS, NULL) < 0)
UC_ERROR
start[0] = map_start;
if(H5Sselect_hyperslab(vds_sid, H5S_SELECT_SET, start, stride,
count, UC_5_PLANE) < 0)
UC_ERROR
map_start += 1;
/* Add VDS mapping */
if(H5Pset_virtual(vds_dcplid, vds_sid, UC_5_FILE_NAMES[i],
UC_5_SOURCE_DSET_PATH, src_sid) < 0)
UC_ERROR
/* close */
if(H5Sclose(msid) < 0)
UC_ERROR
if(H5Sclose(fsid) < 0)
UC_ERROR
if(H5Sclose(src_sid) < 0)
UC_ERROR
if(H5Pclose(src_dcplid) < 0)
UC_ERROR
if(H5Dclose(did) < 0)
UC_ERROR
if(H5Fclose(fid) < 0)
UC_ERROR
free(buffer);
} /* end for */
/*******************
* Create VDS file *
*******************/
/* file */
if((fid = H5Fcreate(UC_5_VDS_FILE_NAME, H5F_ACC_TRUNC,
H5P_DEFAULT, H5P_DEFAULT)) < 0)
UC_ERROR
/* dataset */
if((did = H5Dcreate2(fid, UC_5_VDS_DSET_NAME, UC_5_VDS_DATATYPE, vds_sid,
H5P_DEFAULT, vds_dcplid, H5P_DEFAULT)) < 0)
UC_ERROR
/* close */
if(H5Pclose(vds_dcplid) < 0)
UC_ERROR
if(H5Sclose(vds_sid) < 0)
UC_ERROR
if(H5Dclose(did) < 0)
UC_ERROR
if(H5Fclose(fid) < 0)
UC_ERROR
return EXIT_SUCCESS;
error:
H5E_BEGIN_TRY {
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);
if(msid >= 0)
(void)H5Sclose(msid);
if(fsid >= 0)
(void)H5Sclose(fsid);
if(buffer != NULL)
free(buffer);
} H5E_END_TRY
return EXIT_FAILURE;
} /* end main() */
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