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author | Allen Byrne <50328838+byrnHDF@users.noreply.github.com> | 2024-01-03 20:17:46 (GMT) |
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committer | GitHub <noreply@github.com> | 2024-01-03 20:17:46 (GMT) |
commit | 772276ea1f6f8b150a22eff3a908eff24ccc50a7 (patch) | |
tree | 29d4f2850422dccf3b4e057786f9766b8e2adc54 /examples/h5_vds-percival.c | |
parent | 8f1a93f1a208055c9b872a06be28a20e72f8f488 (diff) | |
download | hdf5-772276ea1f6f8b150a22eff3a908eff24ccc50a7.zip hdf5-772276ea1f6f8b150a22eff3a908eff24ccc50a7.tar.gz hdf5-772276ea1f6f8b150a22eff3a908eff24ccc50a7.tar.bz2 |
Remove examples that have been moved to HDF5Examples folder (#3917)
Diffstat (limited to 'examples/h5_vds-percival.c')
-rw-r--r-- | examples/h5_vds-percival.c | 241 |
1 files changed, 0 insertions, 241 deletions
diff --git a/examples/h5_vds-percival.c b/examples/h5_vds-percival.c deleted file mode 100644 index 82c8ef4..0000000 --- a/examples/h5_vds-percival.c +++ /dev/null @@ -1,241 +0,0 @@ -/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * - * 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. * - * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ -/************************************************************ - - This example illustrates the concept of the virtual dataset. - Percival use case. Every fifth 10x10 plane in VDS is stored in - the corresponding 3D unlimited dataset. - EIP: For now we will use finite dimension. - There are 4 source datasets total. - This file is intended for use with HDF5 Library version 1.10 - - ************************************************************/ -/* EIP Add link to the picture */ - -#include "hdf5.h" -#include <stdio.h> -#include <stdlib.h> - -#define FILE "vds-percival.h5" -#define DATASET "VDS-Percival" -/* later -#define VDSDIM0 H5S_UNLIMITED -*/ -#define VDSDIM0 40 -#define VDSDIM1 10 -#define VDSDIM2 10 -/* later -#define DIM0 H5S_UNLIMITED -*/ -#define DIM0 10 -#define DIM1 10 -#define DIM2 10 -#define RANK 3 -#define PLANE_STRIDE 4 - -const char *SRC_FILE[] = {"a.h5", "b.h5", "c.h5", "d.h5"}; - -const char *SRC_DATASET[] = {"A", "B", "C", "D"}; - -int -main(void) -{ - hid_t file, src_space, vspace, dset; /* Handles */ - hid_t dcpl; - herr_t status; - hsize_t vdsdims[3] = {VDSDIM0, VDSDIM1, VDSDIM2}, vdsdims_max[3] = {VDSDIM0, VDSDIM1, VDSDIM2}, - dims[3] = {DIM0, DIM1, DIM2}, dims_max[3] = {DIM0, DIM1, DIM2}, - start[3], /* Hyperslab start parameter for VDS */ - stride[3], count[3], src_count[3], block[3]; - hsize_t start_out[3], /* Hyperslab parameter out */ - stride_out[3], count_out[3], block_out[3]; - int i, j; - H5D_layout_t layout; /* Storage layout */ - size_t num_map; /* Number of mappings */ - ssize_t len; /* Length of the string; also a return value */ - char *filename; - char *dsetname; - int wdata[DIM0 * DIM1 * DIM2]; - - /* - * Create source files and datasets. This step is optional. - */ - for (i = 0; i < PLANE_STRIDE; i++) { - /* - * Initialize data for i-th source dataset. - */ - for (j = 0; j < DIM0 * DIM1 * DIM2; j++) - wdata[j] = i + 1; - - /* - * Create the source files and datasets. Write data to each dataset and - * close all resources. - */ - - file = H5Fcreate(SRC_FILE[i], H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); - src_space = H5Screate_simple(RANK, dims, NULL); - dset = H5Dcreate2(file, SRC_DATASET[i], H5T_NATIVE_INT, src_space, H5P_DEFAULT, H5P_DEFAULT, - H5P_DEFAULT); - status = H5Dwrite(dset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata); - status = H5Sclose(src_space); - status = H5Dclose(dset); - status = H5Fclose(file); - } - - file = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); - - /* Create VDS dataspace. */ - vspace = H5Screate_simple(RANK, vdsdims, vdsdims_max); - - /* Create dataspaces for the source dataset. */ - src_space = H5Screate_simple(RANK, dims, dims_max); - - /* Create VDS creation property */ - dcpl = H5Pcreate(H5P_DATASET_CREATE); - - /* Initialize hyperslab values */ - - start[0] = 0; - start[1] = 0; - start[2] = 0; - stride[0] = PLANE_STRIDE; /* we will select every fifth plane in VDS */ - stride[1] = 1; - stride[2] = 1; - /* later - count[0] = H5S_UNLIMITED; - */ - count[0] = VDSDIM0 / 4; - count[1] = 1; - count[2] = 1; - /* later - src_count[0] = H5S_UNLIMITED; - */ - src_count[0] = DIM0; - src_count[1] = 1; - src_count[2] = 1; - block[0] = 1; - block[1] = DIM1; - block[2] = DIM2; - - /* - * Build the mappings - * - */ - status = H5Sselect_hyperslab(src_space, H5S_SELECT_SET, start, NULL, src_count, block); - for (i = 0; i < PLANE_STRIDE; i++) { - status = H5Sselect_hyperslab(vspace, H5S_SELECT_SET, start, stride, count, block); - status = H5Pset_virtual(dcpl, vspace, SRC_FILE[i], SRC_DATASET[i], src_space); - start[0]++; - } - - H5Sselect_none(vspace); - - /* Create a virtual dataset */ - dset = H5Dcreate2(file, DATASET, H5T_NATIVE_INT, vspace, H5P_DEFAULT, dcpl, H5P_DEFAULT); - status = H5Sclose(vspace); - status = H5Sclose(src_space); - status = H5Dclose(dset); - status = H5Fclose(file); - - /* - * Now we begin the read section of this example. - */ - - /* - * Open file and dataset using the default properties. - */ - file = H5Fopen(FILE, H5F_ACC_RDONLY, H5P_DEFAULT); - dset = H5Dopen2(file, DATASET, H5P_DEFAULT); - - /* - * Get creation property list and mapping properties. - */ - dcpl = H5Dget_create_plist(dset); - - /* - * Get storage layout. - */ - layout = H5Pget_layout(dcpl); - - if (H5D_VIRTUAL == layout) - printf(" Dataset has a virtual layout \n"); - else - printf(" Wrong layout found \n"); - - /* - * Find number of mappings. - */ - status = H5Pget_virtual_count(dcpl, &num_map); - printf(" Number of mappings is %lu\n", (unsigned long)num_map); - - /* - * Get mapping parameters for each mapping. - */ - for (i = 0; i < (int)num_map; i++) { - printf(" Mapping %d \n", i); - printf(" Selection in the virtual dataset \n"); - /* Get selection in the virtual dataset */ - vspace = H5Pget_virtual_vspace(dcpl, (size_t)i); - if (H5Sget_select_type(vspace) == H5S_SEL_HYPERSLABS) { - if (H5Sis_regular_hyperslab(vspace)) { - status = H5Sget_regular_hyperslab(vspace, start_out, stride_out, count_out, block_out); - printf(" start = [%llu, %llu, %llu] \n", (unsigned long long)start_out[0], - (unsigned long long)start_out[1], (unsigned long long)start_out[2]); - printf(" stride = [%llu, %llu, %llu] \n", (unsigned long long)stride_out[0], - (unsigned long long)stride_out[1], (unsigned long long)stride_out[2]); - printf(" count = [%llu, %llu, %llu] \n", (unsigned long long)count_out[0], - (unsigned long long)count_out[1], (unsigned long long)count_out[2]); - printf(" block = [%llu, %llu, %llu] \n", (unsigned long long)block_out[0], - (unsigned long long)block_out[1], (unsigned long long)block_out[2]); - } - } - /* Get source file name */ - len = H5Pget_virtual_filename(dcpl, (size_t)i, NULL, 0); - filename = (char *)malloc((size_t)len * sizeof(char) + 1); - H5Pget_virtual_filename(dcpl, (size_t)i, filename, len + 1); - printf(" Source filename %s\n", filename); - - /* Get source dataset name */ - len = H5Pget_virtual_dsetname(dcpl, (size_t)i, NULL, 0); - dsetname = (char *)malloc((size_t)len * sizeof(char) + 1); - H5Pget_virtual_dsetname(dcpl, (size_t)i, dsetname, len + 1); - printf(" Source dataset name %s\n", dsetname); - - /* Get selection in the source dataset */ - printf(" Selection in the source dataset \n"); - src_space = H5Pget_virtual_srcspace(dcpl, (size_t)i); - if (H5Sget_select_type(src_space) == H5S_SEL_HYPERSLABS) { - if (H5Sis_regular_hyperslab(src_space)) { - status = H5Sget_regular_hyperslab(src_space, start_out, stride_out, count_out, block_out); - printf(" start = [%llu, %llu, %llu] \n", (unsigned long long)start_out[0], - (unsigned long long)start_out[1], (unsigned long long)start_out[2]); - printf(" stride = [%llu, %llu, %llu] \n", (unsigned long long)stride_out[0], - (unsigned long long)stride_out[1], (unsigned long long)stride_out[2]); - printf(" count = [%llu, %llu, %llu] \n", (unsigned long long)count_out[0], - (unsigned long long)count_out[1], (unsigned long long)count_out[2]); - printf(" block = [%llu, %llu, %llu] \n", (unsigned long long)block_out[0], - (unsigned long long)block_out[1], (unsigned long long)block_out[2]); - } - } - H5Sclose(vspace); - H5Sclose(src_space); - free(filename); - free(dsetname); - } - /* - * Close and release resources. - */ - status = H5Pclose(dcpl); - status = H5Dclose(dset); - status = H5Fclose(file); - return 0; -} |