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diff --git a/tools/test/h5repack/h5repackgentest.c b/tools/test/h5repack/h5repackgentest.c
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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. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/* For generating files for verifying h5repack with external storage. . .
+ *
+ * Each case file should follow the format of:
+ * + h5repack_<NAME>.h5
+ * + h5repack_<NAME>_ex.h5
+ * + h5repack_<NAME>_ex-<N>.dat
+ * ...where NAME idenfities the type, and N is a positive decimal number;
+ * multiple external files (*.dat) are allowed per file, but they must
+ * follow the pattern and be in contiguous numerical sequence starting at 0.
+ *
+ * Each file typename must be added to the listing for
+ * `VERIFY_EXTERNAL_CONSOLIDATION` in h5repack.sh
+ *
+ * There is no restriction on the name, number, or structure of datasets and
+ * groups in HDF5 file.
+ *
+ * The inluded datatypes should be more than adequate to verify the correctness
+ * of the behavior -- if one type can be consolidated from external storage,
+ * then thay all can.
+ */
+
+#include "hdf5.h"
+#include "H5private.h"
+
+#define MAX_NAME_SIZE 256
+#define FILE_INT32LE_1 "h5repack_int32le_1d"
+#define FILE_INT32LE_2 "h5repack_int32le_2d"
+#define FILE_INT32LE_3 "h5repack_int32le_3d"
+#define FILE_UINT8BE "h5repack_uint8be"
+#define FILE_F32LE "h5repack_f32le"
+
+#define H5REPACKGENTEST_OOPS ret_value = -1; goto done;
+
+#define H5REPACKGENTEST_COMMON_CLEANUP(dcpl, file, space) { \
+ if ((dcpl) != H5P_DEFAULT && (dcpl) != H5I_INVALID_HID) { \
+ (void)H5Pclose((dcpl)); \
+ } \
+ if ((file) != H5I_INVALID_HID) { (void)H5Fclose((file)); } \
+ if ((space) != H5I_INVALID_HID) { (void)H5Sclose((space)); } \
+}
+
+struct external_def {
+ hsize_t type_size;
+ unsigned n_elts_per_file;
+ unsigned n_elts_total;
+};
+
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * Helper function to create and write a dataset to file.
+ * Returns 0 on success, -1 on failure.
+ */
+static int
+__make_dataset(
+ hid_t file_id,
+ const char *dset_name,
+ hid_t mem_type_id,
+ hid_t space_id,
+ hid_t dcpl_id,
+ void *wdata)
+{
+ hid_t dset_id = H5I_INVALID_HID;
+ int ret_value = 0;
+
+ dset_id = H5Dcreate2(
+ file_id,
+ dset_name,
+ mem_type_id,
+ space_id,
+ H5P_DEFAULT,
+ dcpl_id,
+ H5P_DEFAULT);
+ if (dset_id == H5I_INVALID_HID) {
+ H5REPACKGENTEST_OOPS;
+ }
+
+ if (H5Dwrite(
+ dset_id,
+ mem_type_id,
+ H5S_ALL,
+ H5S_ALL,
+ H5P_DEFAULT,
+ wdata)
+ < 0)
+ {
+ H5REPACKGENTEST_OOPS;
+ }
+
+done:
+ if (dset_id != H5I_INVALID_HID) { (void)H5Dclose(dset_id); }
+ return ret_value;
+} /* end __make_dataset() */
+
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * Helper function to populate the DCPL external storage list.
+ * Creates external files for the DCPL, with each file name following the
+ * convention "<filename>_ex-<num>.dat". Will append `n_external_files` to
+ * the filename list, with each file having space for `n_elts` items of the
+ * type (of size `elt_size`). The numeric inputs are not sanity-checked.
+ * Returns 0 on success, -1 on failure.
+ */
+static int
+__set_dcpl_external_list(
+ hid_t dcpl,
+ const char *filename,
+ unsigned n_elts_per_file,
+ unsigned n_elts_total,
+ hsize_t elt_size)
+{
+ char name[MAX_NAME_SIZE];
+ unsigned n_external_files = 0;
+ unsigned i = 0;
+
+ if (NULL == filename || '\0' == *filename) {
+ return -1;
+ }
+
+ n_external_files = n_elts_total / n_elts_per_file;
+ if (n_elts_total != (n_external_files * n_elts_per_file)) {
+ return -1;
+ }
+
+ for (i = 0; i < n_external_files; i++) {
+ if (snprintf(name, MAX_NAME_SIZE, "%s_ex-%u.dat", filename, i) >= MAX_NAME_SIZE) {
+ return -1;
+ }
+ if (H5Pset_external(dcpl, name, 0, n_elts_per_file * elt_size) < 0) {
+ return -1;
+ }
+ }
+ return 0;
+} /* end __set_dcpl_external_list() */
+
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * Generalized utility function to write a file with the specified data and
+ * dataset configuration. If `ext` is provided, will attempt to use external
+ * storage.
+ * Returns 0 on success, -1 on failure.
+ */
+static int
+__make_file(
+ const char *basename,
+ struct external_def *ext,
+ hid_t type_id,
+ hsize_t rank,
+ hsize_t *dims,
+ void *wdata)
+{
+ char filename[MAX_NAME_SIZE];
+ hid_t file_id = H5I_INVALID_HID;
+ hid_t dcpl_id = H5P_DEFAULT;
+ hid_t space_id = H5I_INVALID_HID;
+ int ret_value = 0;
+
+ if (snprintf(filename,
+ MAX_NAME_SIZE,
+ "%s%s.h5",
+ basename,
+ (NULL != ext) ? "_ex" : "")
+ >= MAX_NAME_SIZE)
+ {
+ H5REPACKGENTEST_OOPS;
+ }
+
+ if (NULL != ext) {
+ dcpl_id = H5Pcreate(H5P_DATASET_CREATE);
+ if (dcpl_id == H5I_INVALID_HID) {
+ H5REPACKGENTEST_OOPS;
+ }
+ if (__set_dcpl_external_list(
+ dcpl_id,
+ basename,
+ ext->n_elts_per_file,
+ ext->n_elts_total,
+ ext->type_size)
+ < 0)
+ {
+ H5REPACKGENTEST_OOPS;
+ }
+ }
+
+ space_id = H5Screate_simple(rank, dims, NULL);
+ if (space_id == H5I_INVALID_HID) {
+ H5REPACKGENTEST_OOPS;
+ }
+
+ file_id = H5Fcreate(filename, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+ if (file_id == H5I_INVALID_HID) {
+ H5REPACKGENTEST_OOPS;
+ }
+
+ if (__make_dataset(
+ file_id,
+ "dset",
+ type_id,
+ space_id,
+ dcpl_id,
+ wdata)
+ < 0)
+ {
+ H5REPACKGENTEST_OOPS;
+ }
+
+done:
+ H5REPACKGENTEST_COMMON_CLEANUP(dcpl_id, file_id, space_id);
+ return ret_value;
+} /* end __make_file() */
+
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * Returns 0 on success, -1 on failure.
+ */
+static int
+generate_int32le_1d(hbool_t external)
+{
+ int32_t wdata[12];
+ hsize_t dims[] = {12};
+ struct external_def *def_ptr = NULL;
+ struct external_def def = { (hsize_t)sizeof(int32_t), 6, 12 };
+ int32_t n = 0;
+ int ret_value = 0;
+
+ /* Generate values
+ */
+ for (n = 0; n < 12; n++) {
+ wdata[n] = n-6;
+ }
+
+ def_ptr = (TRUE == external) ? (&def) : NULL;
+ if (__make_file(FILE_INT32LE_1, def_ptr, H5T_STD_I32LE, 1, dims, wdata) < 0) {
+ ret_value = -1;
+ }
+
+ return ret_value;
+} /* end generate_int32le_1d() */
+
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * Returns 0 on success, -1 on failure.
+ */
+static int
+generate_int32le_2d(hbool_t external)
+{
+ int32_t wdata[64];
+ hsize_t dims[] = {8, 8};
+ struct external_def *def_ptr = NULL;
+ struct external_def def = { (hsize_t)sizeof(int32_t), 64, 64 };
+ int32_t n = 0;
+ int ret_value = 0;
+
+ /* Generate values
+ */
+ for (n = 0; n < 64; n++) {
+ wdata[n] = n-32;
+ }
+
+ def_ptr = (TRUE == external) ? (&def) : NULL;
+ if (__make_file(FILE_INT32LE_2, def_ptr, H5T_STD_I32LE, 2, dims, wdata) < 0) {
+ ret_value = -1;
+ }
+
+ return ret_value;
+} /* end generate_int32le_2d() */
+
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * Returns 0 on success, -1 on failure.
+ */
+static int
+generate_int32le_3d(hbool_t external)
+{
+ hsize_t dims[] = {8, 8, 8};
+ int32_t wdata[512]; /* 8^3, from dims */
+ struct external_def *def_ptr = NULL;
+ struct external_def def = { (hsize_t)sizeof(int32_t), 512, 512 };
+ int32_t n = 0;
+ int i = 0;
+ int j = 0;
+ int k = 0;
+ int ret_value = 0;
+
+ /* generate values, alternating positive and negative
+ */
+ for (i=0, n=0; i < dims[0]; i++) {
+ for (j=0; j < dims[1]; j++) {
+ for (k=0; k < dims[2]; k++, n++) {
+ wdata[n] = (k + j*512 + i*4096) * ((n&1) ? (-1) : (1));
+ }
+ }
+ }
+
+ def_ptr = (TRUE == external) ? (&def) : NULL;
+ if (__make_file(FILE_INT32LE_3, def_ptr, H5T_STD_I32LE, 3, dims, wdata) < 0) {
+ ret_value = -1;
+ }
+
+ return ret_value;
+} /* end generate_int32le_3d() */
+
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * Returns 0 on success, -1 on failure.
+ */
+static int
+generate_uint8be(hbool_t external)
+{
+ hsize_t dims[] = {4, 8, 8};
+ uint8_t wdata[256]; /* 4*8*8, from dims */
+ struct external_def *def_ptr = NULL;
+ struct external_def def = { (hsize_t)sizeof(uint8_t), 64, 256 };
+ uint8_t n = 0;
+ int i = 0;
+ int j = 0;
+ int k = 0;
+ int ret_value = 0;
+
+ /* Generate values, ping-pong from ends of range
+ */
+ for (i=0, n=0; i < dims[0]; i++) {
+ for (j=0; j < dims[1]; j++) {
+ for (k=0; k < dims[2]; k++, n++) {
+ wdata[n] = n * ((n&1) ? (-1) : (1));
+ }
+ }
+ }
+
+ def_ptr = (TRUE == external) ? (&def) : NULL;
+ if (__make_file(FILE_UINT8BE, def_ptr, H5T_STD_U8BE, 3, dims, wdata) < 0) {
+ ret_value = -1;
+ }
+
+ return ret_value;
+} /* end generate_uint8be() */
+
+
+/* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+ * Returns 0 on success, -1 on failure.
+ */
+static int
+generate_f32le(hbool_t external)
+{
+ hsize_t dims[] = {12, 6};
+ float wdata[72]; /* 12*6, from dims */
+ struct external_def *def_ptr = NULL;
+ struct external_def def = {
+ (hsize_t)sizeof(float),
+ 72,
+ 72
+ };
+ float n = 0;
+ int i = 0;
+ int j = 0;
+ int k = 0;
+ int ret_value = 0;
+
+ /* Generate values */
+ for (i=0, k=0, n=0; i < dims[0]; i++) {
+ for (j=0; j < dims[1]; j++, k++, n++) {
+ wdata[k] = n * 801.1 * ((k % 5 == 1) ? (-1) : (1));
+ }
+ }
+
+ def_ptr = (TRUE == external) ? (&def) : NULL;
+ if (__make_file(FILE_F32LE, def_ptr, H5T_IEEE_F32LE, 2, dims, wdata) < 0) {
+ ret_value = -1;
+ }
+
+ return ret_value;
+} /* end generate_f32le() */
+
+
+/* ----------------------------------------------------------------------------
+ * Create files.
+ * Return 0 on success, nonzero on failure.
+ */
+int
+main(void)
+{
+ int i = 0;
+ int ret_value = 0;
+
+ for (i=0; i < 2; i++) {
+ hbool_t external = (i&1) ? TRUE : FALSE;
+ if (ret_value == 0) { ret_value -= generate_int32le_1d(external); }
+ if (ret_value == 0) { ret_value -= generate_int32le_2d(external); }
+ if (ret_value == 0) { ret_value -= generate_int32le_3d(external); }
+ if (ret_value == 0) { ret_value -= generate_uint8be(external); }
+ if (ret_value == 0) { ret_value -= generate_f32le(external); }
+ } /* end for external data storage or not */
+
+ if (ret_value != 0) {
+ HDprintf("A problem occurred!\n");
+ }
+
+ return ret_value;
+} /* end main() */
+
+
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