diff options
Diffstat (limited to 'examples/h5_mount.c')
| -rw-r--r-- | examples/h5_mount.c | 198 |
1 files changed, 98 insertions, 100 deletions
diff --git a/examples/h5_mount.c b/examples/h5_mount.c index a2e16c5..c1b63cf 100644 --- a/examples/h5_mount.c +++ b/examples/h5_mount.c @@ -25,107 +25,105 @@ #define FILE2 "mount2.h5" #define RANK 2 -#define NX 4 -#define NY 5 +#define NX 4 +#define NY 5 -int main(void) +int +main(void) { - hid_t fid1, fid2, gid; /* Files and group identifiers */ - hid_t did, tid, sid; /* Dataset and datatype identifiers */ - - herr_t status; - hsize_t dims[] = {NX,NY}; /* Dataset dimensions */ - - int i, j; - int bm[NX][NY], bm_out[NX][NY]; /* Data buffers */ - - /* - * Initialization of buffer matrix "bm" - */ - for(i =0; i < NX; i++) - for(j = 0; j < NY; j++) - bm[i][j] = i + j; - - /* - * Create first file and a group in it. - */ - fid1 = H5Fcreate(FILE1, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); - gid = H5Gcreate2(fid1, "/G", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); - - /* - * Close group and file - */ - H5Gclose(gid); - H5Fclose(fid1); - - /* - * Create second file and dataset "D" in it. - */ - fid2 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); - dims[0] = NX; - dims[1] = NY; - sid = H5Screate_simple(RANK, dims, NULL); - did = H5Dcreate2(fid2, "D", H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); - - /* - * Write data to the dataset. - */ - status = H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, bm); - - /* - * Close all identifiers. - */ - H5Sclose(sid); - H5Dclose(did); - H5Fclose(fid2); - - /* - * Reopen both files - */ - fid1 = H5Fopen(FILE1, H5F_ACC_RDONLY, H5P_DEFAULT); - fid2 = H5Fopen(FILE2, H5F_ACC_RDONLY, H5P_DEFAULT); - - /* - * Mount second file under G in the first file. - */ - H5Fmount(fid1, "/G", fid2, H5P_DEFAULT); - - /* - * Access dataset D in the first file under /G/D name. - */ - did = H5Dopen2(fid1, "/G/D", H5P_DEFAULT); - tid = H5Dget_type(did); - status = H5Dread(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, bm_out); - - /* - * Print out the data. - */ - for(i=0; i<NX; i++){ - for(j=0; j<NY; j++) - printf(" %d", bm_out[i][j]); - printf("\n"); - } - - /* - * Close all identifers - */ - H5Tclose(tid); - H5Dclose(did); - - /* - * Unmounting second file - */ - H5Funmount(fid1, "/G"); - - /* - * Close both files - */ - H5Fclose(fid1); - H5Fclose(fid2); - - return 0; + hid_t fid1, fid2, gid; /* Files and group identifiers */ + hid_t did, tid, sid; /* Dataset and datatype identifiers */ + + herr_t status; + hsize_t dims[] = {NX, NY}; /* Dataset dimensions */ + + int i, j; + int bm[NX][NY], bm_out[NX][NY]; /* Data buffers */ + + /* + * Initialization of buffer matrix "bm" + */ + for (i = 0; i < NX; i++) + for (j = 0; j < NY; j++) + bm[i][j] = i + j; + + /* + * Create first file and a group in it. + */ + fid1 = H5Fcreate(FILE1, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); + gid = H5Gcreate2(fid1, "/G", H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); + + /* + * Close group and file + */ + H5Gclose(gid); + H5Fclose(fid1); + + /* + * Create second file and dataset "D" in it. + */ + fid2 = H5Fcreate(FILE2, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT); + dims[0] = NX; + dims[1] = NY; + sid = H5Screate_simple(RANK, dims, NULL); + did = H5Dcreate2(fid2, "D", H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT); + + /* + * Write data to the dataset. + */ + status = H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, bm); + + /* + * Close all identifiers. + */ + H5Sclose(sid); + H5Dclose(did); + H5Fclose(fid2); + + /* + * Reopen both files + */ + fid1 = H5Fopen(FILE1, H5F_ACC_RDONLY, H5P_DEFAULT); + fid2 = H5Fopen(FILE2, H5F_ACC_RDONLY, H5P_DEFAULT); + + /* + * Mount second file under G in the first file. + */ + H5Fmount(fid1, "/G", fid2, H5P_DEFAULT); + + /* + * Access dataset D in the first file under /G/D name. + */ + did = H5Dopen2(fid1, "/G/D", H5P_DEFAULT); + tid = H5Dget_type(did); + status = H5Dread(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, bm_out); + + /* + * Print out the data. + */ + for (i = 0; i < NX; i++) { + for (j = 0; j < NY; j++) + printf(" %d", bm_out[i][j]); + printf("\n"); + } + + /* + * Close all identifers + */ + H5Tclose(tid); + H5Dclose(did); + + /* + * Unmounting second file + */ + H5Funmount(fid1, "/G"); + + /* + * Close both files + */ + H5Fclose(fid1); + H5Fclose(fid2); + + return 0; } - - - |