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231 lines
7.6 KiB
231 lines
7.6 KiB
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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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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* File/dataset generator for VDS use case 5
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*
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* See the header file for a description.
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*/
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#include <stdlib.h>
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#include <hdf5.h>
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#include "UC_common.h"
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#include "UC_5.h"
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int
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main(void)
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{
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hid_t src_sid = H5I_INVALID_HID; /* source dataset's dataspace ID */
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hid_t src_dcplid = H5I_INVALID_HID; /* source dataset property list ID */
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hid_t vds_sid = H5I_INVALID_HID; /* VDS dataspace ID */
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hid_t vds_dcplid = H5I_INVALID_HID; /* VDS dataset property list ID */
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hid_t fid = H5I_INVALID_HID; /* HDF5 file ID */
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hid_t did = H5I_INVALID_HID; /* dataset ID */
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hid_t msid = H5I_INVALID_HID; /* memory dataspace ID */
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hid_t fsid = H5I_INVALID_HID; /* file dataspace ID */
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hsize_t extent[RANK]; /* source dataset extents */
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hsize_t start[RANK]; /* starting point for hyperslab */
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hsize_t stride[RANK]; /* hypserslab stride */
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hsize_t count[RANK]; /* hypserslab count */
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hsize_t map_start = 0; /* starting point in the VDS map */
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int *buffer = NULL; /* data buffer */
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int value = -1; /* value written to datasets */
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hsize_t n = 0; /* number of elements in a plane */
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int i; /* iterator */
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int j; /* iterator */
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hsize_t k; /* iterator */
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/* Start by creating the virtual dataset (VDS) dataspace and creation
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* property list. The individual source datasets are then created
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* and the VDS map (stored in the VDS property list) is updated.
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*/
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/* Create VDS dcpl */
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if ((vds_dcplid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
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UC_ERROR
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if (H5Pset_fill_value(vds_dcplid, UC_5_VDS_DATATYPE, &UC_5_VDS_FILL_VALUE) < 0)
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UC_ERROR
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/* Create VDS dataspace */
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if ((vds_sid = H5Screate_simple(RANK, UC_5_VDS_DIMS, UC_5_VDS_MAX_DIMS)) < 0)
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UC_ERROR
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/*********************************
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* Map source files and datasets *
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*********************************/
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/* Hyperslab array setup */
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start[0] = 0;
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start[1] = 0;
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start[2] = 0;
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map_start = 0;
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stride[0] = UC_5_N_SOURCES;
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stride[1] = 1;
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stride[2] = 1;
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count[0] = H5S_UNLIMITED;
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count[1] = 1;
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count[2] = 1;
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extent[0] = UC_5_SRC_PLANES;
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extent[1] = UC_5_HEIGHT;
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extent[2] = UC_5_WIDTH;
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for (i = 0; i < UC_5_N_SOURCES; i++) {
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/* source dataset dcpl */
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if ((src_dcplid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
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UC_ERROR
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if (H5Pset_chunk(src_dcplid, RANK, UC_5_PLANE) < 0)
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UC_ERROR
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if (H5Pset_fill_value(src_dcplid, UC_5_SOURCE_DATATYPE, &UC_5_FILL_VALUES[i]) < 0)
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UC_ERROR
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if (H5Pset_deflate(src_dcplid, COMPRESSION_LEVEL) < 0)
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UC_ERROR
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/* Create source file, dataspace, and dataset */
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if ((fid = H5Fcreate(UC_5_FILE_NAMES[i], H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
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UC_ERROR
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if ((src_sid = H5Screate_simple(RANK, UC_5_SOURCE_DIMS, UC_5_SOURCE_MAX_DIMS)) < 0)
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UC_ERROR
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if ((did = H5Dcreate2(fid, UC_5_SOURCE_DSET_NAME, UC_5_SOURCE_DATATYPE, src_sid, H5P_DEFAULT,
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src_dcplid, H5P_DEFAULT)) < 0)
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UC_ERROR
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/* Set the dataset's extent */
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if (H5Dset_extent(did, extent) < 0)
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UC_ERROR
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/* Create a data buffer that represents a plane */
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n = UC_5_PLANE[1] * UC_5_PLANE[2];
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if (NULL == (buffer = (int *)malloc(n * sizeof(int))))
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UC_ERROR
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/* Create the memory dataspace */
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if ((msid = H5Screate_simple(RANK, UC_5_PLANE, NULL)) < 0)
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UC_ERROR
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/* Get the file dataspace */
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if ((fsid = H5Dget_space(did)) < 0)
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UC_ERROR
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/* Write planes to the dataset */
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for (j = 0; j < UC_5_SRC_PLANES; j++) {
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value = ((i + 1) * 10) + j;
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for (k = 0; k < n; k++)
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buffer[k] = value;
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start[0] = (hsize_t)j;
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start[1] = 0;
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start[2] = 0;
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if (H5Sselect_hyperslab(fsid, H5S_SELECT_SET, start, NULL, UC_5_PLANE, NULL) < 0)
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UC_ERROR
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if (H5Dwrite(did, H5T_NATIVE_INT, msid, fsid, H5P_DEFAULT, buffer) < 0)
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UC_ERROR
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} /* end for */
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/* set up hyperslabs for source and destination datasets */
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start[0] = 0;
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start[1] = 0;
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start[2] = 0;
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if (H5Sselect_hyperslab(src_sid, H5S_SELECT_SET, start, NULL, UC_5_SOURCE_MAX_DIMS, NULL) < 0)
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UC_ERROR
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start[0] = map_start;
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if (H5Sselect_hyperslab(vds_sid, H5S_SELECT_SET, start, stride, count, UC_5_PLANE) < 0)
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UC_ERROR
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map_start += 1;
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/* Add VDS mapping */
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if (H5Pset_virtual(vds_dcplid, vds_sid, UC_5_FILE_NAMES[i], UC_5_SOURCE_DSET_PATH, src_sid) < 0)
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UC_ERROR
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/* close */
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if (H5Sclose(msid) < 0)
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UC_ERROR
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if (H5Sclose(fsid) < 0)
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UC_ERROR
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if (H5Sclose(src_sid) < 0)
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UC_ERROR
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if (H5Pclose(src_dcplid) < 0)
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UC_ERROR
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if (H5Dclose(did) < 0)
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UC_ERROR
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if (H5Fclose(fid) < 0)
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UC_ERROR
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free(buffer);
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} /* end for */
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/*******************
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* Create VDS file *
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*******************/
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/* file */
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if ((fid = H5Fcreate(UC_5_VDS_FILE_NAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0)
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UC_ERROR
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/* dataset */
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if ((did = H5Dcreate2(fid, UC_5_VDS_DSET_NAME, UC_5_VDS_DATATYPE, vds_sid, H5P_DEFAULT, vds_dcplid,
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H5P_DEFAULT)) < 0)
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UC_ERROR
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/* close */
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if (H5Pclose(vds_dcplid) < 0)
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UC_ERROR
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if (H5Sclose(vds_sid) < 0)
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UC_ERROR
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if (H5Dclose(did) < 0)
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UC_ERROR
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if (H5Fclose(fid) < 0)
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UC_ERROR
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return EXIT_SUCCESS;
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error:
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H5E_BEGIN_TRY
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{
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if (src_sid >= 0)
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(void)H5Sclose(src_sid);
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if (src_dcplid >= 0)
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(void)H5Pclose(src_dcplid);
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if (vds_sid >= 0)
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(void)H5Sclose(vds_sid);
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if (vds_dcplid >= 0)
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(void)H5Pclose(vds_dcplid);
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if (fid >= 0)
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(void)H5Fclose(fid);
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if (did >= 0)
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(void)H5Dclose(did);
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if (msid >= 0)
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(void)H5Sclose(msid);
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if (fsid >= 0)
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(void)H5Sclose(fsid);
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if (buffer != NULL)
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free(buffer);
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}
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H5E_END_TRY
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return EXIT_FAILURE;
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} /* end main() */
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