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-rw-r--r--examples/h5_vds-exc.c296
1 files changed, 138 insertions, 158 deletions
diff --git a/examples/h5_vds-exc.c b/examples/h5_vds-exc.c
index b113c36..a9ef57e 100644
--- a/examples/h5_vds-exc.c
+++ b/examples/h5_vds-exc.c
@@ -22,80 +22,55 @@
#include <stdio.h>
#include <stdlib.h>
-#define FILE "vds-exc.h5"
-#define DATASET "VDS-Excalibur"
-#define VDSDIM0 0
-#define VDSDIM1 15
-#define VDSDIM2 6
-#define KDIM0 0
-#define KDIM1 2
-#define KDIM2 6
-#define NDIM0 0
-#define NDIM1 3
-#define NDIM2 6
-#define RANK 3
-
-const char *SRC_FILE[] = {
- "a.h5",
- "b.h5",
- "c.h5",
- "d.h5",
- "e.h5",
- "f.h5"
-};
-
-const char *SRC_DATASET[] = {
- "A",
- "B",
- "C",
- "D",
- "E",
- "F"
-};
+#define FILE "vds-exc.h5"
+#define DATASET "VDS-Excalibur"
+#define VDSDIM0 0
+#define VDSDIM1 15
+#define VDSDIM2 6
+#define KDIM0 0
+#define KDIM1 2
+#define KDIM2 6
+#define NDIM0 0
+#define NDIM1 3
+#define NDIM2 6
+#define RANK 3
+
+const char *SRC_FILE[] = {"a.h5", "b.h5", "c.h5", "d.h5", "e.h5", "f.h5"};
+
+const char *SRC_DATASET[] = {"A", "B", "C", "D", "E", "F"};
int
-main (void)
+main(void)
{
- hid_t file, space, ksrc_space, nsrc_space, vspace,
- src_space,
- dset; /* Handles */
- hid_t dcpl;
- herr_t status;
- hsize_t vdsdims[3] = {VDSDIM0, VDSDIM1, VDSDIM2},
- vdsdims_max[3] = {H5S_UNLIMITED,VDSDIM1, VDSDIM2},
- kdims[3] = {KDIM0, KDIM1, KDIM2},
- kdims_max[3] = {H5S_UNLIMITED, KDIM1, KDIM2},
- ndims[3] = {NDIM0, NDIM1, NDIM2},
- ndims_max[3] = {H5S_UNLIMITED, NDIM1, NDIM2},
- start[3], /* Hyperslab parameters */
- stride[3],
- count[3],
- block[3];
- hsize_t start_out[3],
- stride_out[3],
- count_out[3],
- block_out[3];
+ hid_t file, space, ksrc_space, nsrc_space, vspace, src_space, dset; /* Handles */
+ hid_t dcpl;
+ herr_t status;
+ hsize_t vdsdims[3] = {VDSDIM0, VDSDIM1, VDSDIM2}, vdsdims_max[3] = {H5S_UNLIMITED, VDSDIM1, VDSDIM2},
+ kdims[3] = {KDIM0, KDIM1, KDIM2}, kdims_max[3] = {H5S_UNLIMITED, KDIM1, KDIM2},
+ ndims[3] = {NDIM0, NDIM1, NDIM2}, ndims_max[3] = {H5S_UNLIMITED, NDIM1, NDIM2},
+ start[3], /* Hyperslab parameters */
+ stride[3], count[3], block[3];
+ hsize_t start_out[3], stride_out[3], count_out[3], block_out[3];
int k = 2;
int n = 3;
int i;
- 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;
+ 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;
-
- file = H5Fcreate (FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
+ file = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
/* Create VDS dataspace. */
- space = H5Screate_simple (RANK, vdsdims, vdsdims_max);
+ space = H5Screate_simple(RANK, vdsdims, vdsdims_max);
/* Create dataspaces for A, C, and E datasets. */
- ksrc_space = H5Screate_simple (RANK, kdims, kdims_max);
+ ksrc_space = H5Screate_simple(RANK, kdims, kdims_max);
/* Create dataspaces for B, D, and F datasets. */
- nsrc_space = H5Screate_simple (RANK, ndims, ndims_max);
+ nsrc_space = H5Screate_simple(RANK, ndims, ndims_max);
/* Create VDS creation property */
- dcpl = H5Pcreate (H5P_DATASET_CREATE);
+ dcpl = H5Pcreate(H5P_DATASET_CREATE);
/* Initialize hyperslab values */
@@ -109,42 +84,40 @@ main (void)
block[1] = k;
block[2] = VDSDIM2;
- /*
- * Build the mappings for A, C and E source datasets.
- * Unlimited hyperslab selection is the same in the source datasets.
- * Unlimited hyperslab selections in the virtual dataset have different offsets.
- */
- status = H5Sselect_hyperslab (ksrc_space, H5S_SELECT_SET, start, NULL, count, block);
- for (i = 0; i < 3; i++) {
- start[1] = (hsize_t)((k+n)*i);
- status = H5Sselect_hyperslab (space, H5S_SELECT_SET, start, NULL, count, block);
- status = H5Pset_virtual (dcpl, space, SRC_FILE[2*i], SRC_DATASET[2*i], ksrc_space);
- }
-
- /* Reinitialize start[1] and block[1] to build the second set of mappings. */
- start[1] = 0;
- block[1] = n;
- /*
- * Build the mappings for B, D and F source datasets.
- * Unlimited hyperslab selection is the same in the source datasets.
- * Unlimited hyperslab selections in the virtual dataset have different offsets.
- */
- status = H5Sselect_hyperslab (nsrc_space, H5S_SELECT_SET, start, NULL, count, block);
- for (i = 0; i < 3; i++) {
- start[1] = (hsize_t)(k+(k+n)*i);
- status = H5Sselect_hyperslab (space, H5S_SELECT_SET, start, NULL, count, block);
- status = H5Pset_virtual (dcpl, space, SRC_FILE[2*i+1], SRC_DATASET[2*i+1], nsrc_space);
- }
-
- /* Create a virtual dataset */
- dset = H5Dcreate2 (file, DATASET, H5T_NATIVE_INT, space, H5P_DEFAULT,
- dcpl, H5P_DEFAULT);
- status = H5Sclose (space);
- status = H5Sclose (nsrc_space);
- status = H5Sclose (ksrc_space);
- status = H5Dclose (dset);
- status = H5Fclose (file);
-
+ /*
+ * Build the mappings for A, C and E source datasets.
+ * Unlimited hyperslab selection is the same in the source datasets.
+ * Unlimited hyperslab selections in the virtual dataset have different offsets.
+ */
+ status = H5Sselect_hyperslab(ksrc_space, H5S_SELECT_SET, start, NULL, count, block);
+ for (i = 0; i < 3; i++) {
+ start[1] = (hsize_t)((k + n) * i);
+ status = H5Sselect_hyperslab(space, H5S_SELECT_SET, start, NULL, count, block);
+ status = H5Pset_virtual(dcpl, space, SRC_FILE[2 * i], SRC_DATASET[2 * i], ksrc_space);
+ }
+
+ /* Reinitialize start[1] and block[1] to build the second set of mappings. */
+ start[1] = 0;
+ block[1] = n;
+ /*
+ * Build the mappings for B, D and F source datasets.
+ * Unlimited hyperslab selection is the same in the source datasets.
+ * Unlimited hyperslab selections in the virtual dataset have different offsets.
+ */
+ status = H5Sselect_hyperslab(nsrc_space, H5S_SELECT_SET, start, NULL, count, block);
+ for (i = 0; i < 3; i++) {
+ start[1] = (hsize_t)(k + (k + n) * i);
+ status = H5Sselect_hyperslab(space, H5S_SELECT_SET, start, NULL, count, block);
+ status = H5Pset_virtual(dcpl, space, SRC_FILE[2 * i + 1], SRC_DATASET[2 * i + 1], nsrc_space);
+ }
+
+ /* Create a virtual dataset */
+ dset = H5Dcreate2(file, DATASET, H5T_NATIVE_INT, space, H5P_DEFAULT, dcpl, H5P_DEFAULT);
+ status = H5Sclose(space);
+ status = H5Sclose(nsrc_space);
+ status = H5Sclose(ksrc_space);
+ status = H5Dclose(dset);
+ status = H5Fclose(file);
/*
* Now we begin the read section of this example.
@@ -153,85 +126,92 @@ main (void)
/*
* Open file and dataset using the default properties.
*/
- file = H5Fopen (FILE, H5F_ACC_RDONLY, H5P_DEFAULT);
- dset = H5Dopen2 (file, DATASET, H5P_DEFAULT);
+ 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);
+ dcpl = H5Dget_create_plist(dset);
/*
* Get storage layout.
*/
- layout = H5Pget_layout (dcpl);
+ 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 virttual 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(vspace)) {
- 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);
- }
-/* EIP read data back */
+ /*
+ * 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 virttual 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(vspace)) {
+ 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);
+ }
+ /* EIP read data back */
/*
* Close and release resources.
*/
- status = H5Pclose (dcpl);
- status = H5Dclose (dset);
- status = H5Fclose (file);
+ status = H5Pclose(dcpl);
+ status = H5Dclose(dset);
+ status = H5Fclose(file);
return 0;
}
-