diff options
Diffstat (limited to 'examples/h5_vds-simpleIO.c')
| -rw-r--r-- | examples/h5_vds-simpleIO.c | 167 |
1 files changed, 81 insertions, 86 deletions
diff --git a/examples/h5_vds-simpleIO.c b/examples/h5_vds-simpleIO.c index 5fd5c52..f5d8901 100644 --- a/examples/h5_vds-simpleIO.c +++ b/examples/h5_vds-simpleIO.c @@ -27,61 +27,59 @@ #include <stdio.h> #include <stdlib.h> -#define FILE "vds-simpleIO.h5" -#define DATASET "VDS" -#define DIM1 6 -#define DIM0 4 -#define RANK 2 - -#define SRC_FILE "a.h5" -#define SRC_DATASET "/A" +#define FILE "vds-simpleIO.h5" +#define DATASET "VDS" +#define DIM1 6 +#define DIM0 4 +#define RANK 2 +#define SRC_FILE "a.h5" +#define SRC_DATASET "/A" int -main (void) +main(void) { - hid_t file, space, src_space, vspace, dset; /* Handles */ - hid_t dcpl; - herr_t status; - hsize_t vdsdims[2] = {DIM0, DIM1}, /* Virtual dataset dimension */ - dims[2] = {DIM0, DIM1}; /* Source dataset dimensions */ - int wdata[DIM0][DIM1], /* Write buffer for source dataset */ - rdata[DIM0][DIM1], /* Read buffer for virtual dataset */ - 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; + hid_t file, space, src_space, vspace, dset; /* Handles */ + hid_t dcpl; + herr_t status; + hsize_t vdsdims[2] = {DIM0, DIM1}, /* Virtual dataset dimension */ + dims[2] = {DIM0, DIM1}; /* Source dataset dimensions */ + int wdata[DIM0][DIM1], /* Write buffer for source dataset */ + rdata[DIM0][DIM1], /* Read buffer for virtual dataset */ + 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; /* * Initialize data. */ - for (i = 0; i < DIM0; i++) - for (j = 0; j < DIM1; j++) wdata[i][j] = i+1; - - /* - * Create the source file and the dataset. Write data to the source dataset - * and close all resources. - */ - - file = H5Fcreate (SRC_FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); - space = H5Screate_simple (RANK, dims, NULL); - dset = H5Dcreate2 (file, SRC_DATASET, H5T_NATIVE_INT, space, H5P_DEFAULT, - H5P_DEFAULT, H5P_DEFAULT); - status = H5Dwrite (dset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, - wdata[0]); - status = H5Sclose (space); - status = H5Dclose (dset); - status = H5Fclose (file); + for (i = 0; i < DIM0; i++) + for (j = 0; j < DIM1; j++) + wdata[i][j] = i + 1; + + /* + * Create the source file and the dataset. Write data to the source dataset + * and close all resources. + */ + + file = H5Fcreate(SRC_FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); + space = H5Screate_simple(RANK, dims, NULL); + dset = H5Dcreate2(file, SRC_DATASET, H5T_NATIVE_INT, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); + status = H5Dwrite(dset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, wdata[0]); + status = H5Sclose(space); + status = H5Dclose(dset); + status = H5Fclose(file); /* Create file in which virtual dataset will be stored. */ - file = H5Fcreate (FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); + file = H5Fcreate(FILE, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); /* Create VDS dataspace. */ - vspace = H5Screate_simple (RANK, vdsdims, NULL); + vspace = H5Screate_simple(RANK, vdsdims, NULL); /* Set VDS creation property. */ - dcpl = H5Pcreate (H5P_DATASET_CREATE); + dcpl = H5Pcreate(H5P_DATASET_CREATE); /* * Build the mappings. @@ -89,16 +87,15 @@ main (void) * In the virtual dataset we select the first, the second and the third rows * and map each row to the data in the corresponding source dataset. */ - src_space = H5Screate_simple (RANK, dims, NULL); - status = H5Pset_virtual (dcpl, vspace, SRC_FILE, SRC_DATASET, src_space); + src_space = H5Screate_simple(RANK, dims, NULL); + status = H5Pset_virtual(dcpl, vspace, SRC_FILE, SRC_DATASET, src_space); /* 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); + 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. @@ -107,60 +104,60 @@ main (void) /* * Open the file and virtual dataset. */ - 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 the number of mappings. - */ - status = H5Pget_virtual_count (dcpl, &num_map); - printf(" Number of mappings is %lu\n", (unsigned long)num_map); + /* + * Find the 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. - */ + /* + * 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 "); /* Get selection in the virttual dataset */ - vspace = H5Pget_virtual_vspace (dcpl, (size_t)i); + vspace = H5Pget_virtual_vspace(dcpl, (size_t)i); /* Make sure it is ALL selection and then print selection. */ - if(H5Sget_select_type(vspace) == H5S_SEL_ALL) { - printf("Selection is H5S_ALL \n"); + if (H5Sget_select_type(vspace) == H5S_SEL_ALL) { + printf("Selection is H5S_ALL \n"); } /* 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); + 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); + 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 "); - src_space = H5Pget_virtual_srcspace (dcpl, (size_t)i); + src_space = H5Pget_virtual_srcspace(dcpl, (size_t)i); /* Make sure it is ALL selection and then print selection. */ - if(H5Sget_select_type(src_space) == H5S_SEL_ALL) { - printf("Selection is H5S_ALL \n"); + if (H5Sget_select_type(src_space) == H5S_SEL_ALL) { + printf("Selection is H5S_ALL \n"); } H5Sclose(vspace); H5Sclose(src_space); @@ -170,26 +167,24 @@ main (void) /* * Read the data using the default properties. */ - status = H5Dread (dset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, - rdata[0]); + status = H5Dread(dset, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, rdata[0]); /* * Output the data to the screen. */ - printf (" VDS Data:\n"); - for (i=0; i<DIM0; i++) { - printf (" ["); - for (j=0; j<DIM1; j++) - printf (" %3d", rdata[i][j]); - printf ("]\n"); + printf(" VDS Data:\n"); + for (i = 0; i < DIM0; i++) { + printf(" ["); + for (j = 0; j < DIM1; j++) + printf(" %3d", rdata[i][j]); + printf("]\n"); } /* * Close and release resources. */ - status = H5Pclose (dcpl); - status = H5Dclose (dset); - status = H5Fclose (file); + status = H5Pclose(dcpl); + status = H5Dclose(dset); + status = H5Fclose(file); return 0; } - |