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/* -*- c-file-style: "stroustrup" -*- */
#include "hdf5.h"
#include <stdio.h>
#include <stdlib.h>
int
main(void)
{
int ret_val = EXIT_SUCCESS;
//! <!-- [create] -->
{
__label__ fail_fapl, fail_fcpl, fail_file;
hid_t fcpl, fapl, file;
if ((fcpl = H5Pcreate(H5P_FILE_CREATE)) == H5I_INVALID_HID) {
ret_val = EXIT_FAILURE;
goto fail_fcpl;
}
else {
// adjust the file creation properties
}
if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) == H5I_INVALID_HID) {
ret_val = EXIT_FAILURE;
goto fail_fapl;
}
else {
// adjust the file access properties
}
unsigned mode = H5F_ACC_EXCL;
char name[] = "f1.h5";
if ((file = H5Fcreate(name, mode, fcpl, fapl)) == H5I_INVALID_HID) {
ret_val = EXIT_FAILURE;
goto fail_file;
}
// do something useful with FILE
H5Fclose(file);
fail_file:
H5Pclose(fapl);
fail_fapl:
H5Pclose(fcpl);
fail_fcpl:;
}
//! <!-- [create] -->
//! <!-- [read] -->
{
__label__ fail_fapl, fail_file;
hid_t fapl, file;
hsize_t size;
if ((fapl = H5Pcreate(H5P_FILE_ACCESS)) == H5I_INVALID_HID) {
ret_val = EXIT_FAILURE;
goto fail_fapl;
}
else {
// adjust the file access properties
}
unsigned mode = H5F_ACC_RDONLY;
char name[] = "f1.h5";
if ((file = H5Fopen(name, mode, fapl)) == H5I_INVALID_HID) {
ret_val = EXIT_FAILURE;
goto fail_file;
}
if (H5Fget_filesize(file, &size) < 0) {
ret_val = EXIT_FAILURE;
}
printf("File size: %llu bytes\n", size);
H5Fclose(file);
fail_file:
H5Pclose(fapl);
fail_fapl:;
}
//! <!-- [read] -->
//! <!-- [update] -->
{
__label__ fail_file;
hid_t file;
unsigned mode = H5F_ACC_RDWR;
char name[] = "f1.h5";
if ((file = H5Fopen(name, mode, H5P_DEFAULT)) == H5I_INVALID_HID) {
ret_val = EXIT_FAILURE;
goto fail_file;
}
// create a cycle by hard linking the root group in the root group
if (H5Lcreate_hard(file, ".", file, "loopback", H5P_DEFAULT, H5P_DEFAULT) < 0) {
ret_val = EXIT_FAILURE;
}
H5Fclose(file);
fail_file:;
}
//! <!-- [update] -->
//! <!-- [minimal] -->
{
unsigned mode = H5F_ACC_TRUNC;
char name[] = "f11.h5";
hid_t file = H5Fcreate(name, mode, H5P_DEFAULT, H5P_DEFAULT);
if (file != H5I_INVALID_HID)
H5Fclose(file);
else
ret_val = EXIT_FAILURE;
}
//! <!-- [minimal] -->
//! <!-- [open] -->
{
unsigned mode = H5F_ACC_RDONLY;
char name[] = "f11.h5";
hid_t file = H5Fopen(name, mode, H5P_DEFAULT);
if (file != H5I_INVALID_HID)
H5Fclose(file);
else
ret_val = EXIT_FAILURE;
}
//! <!-- [open] -->
//! <!-- [flush] -->
{
unsigned mode = H5F_ACC_RDWR;
char name[] = "f11.h5";
hid_t file = H5Fopen(name, mode, H5P_DEFAULT);
if (file != H5I_INVALID_HID) {
int step;
for (step = 0; step < 1000; ++step) {
// do important work & flush every 20 steps
if (step % 20 == 0) {
if (H5Fflush(file, H5F_SCOPE_LOCAL) < 0) {
perror("H5Fflush failed.");
ret_val = EXIT_FAILURE;
break;
}
}
}
if (H5Fclose(file) < 0)
perror("H5Fclose failed.");
}
else
ret_val = EXIT_FAILURE;
}
//! <!-- [flush] -->
//! <!-- [libver_bounds] -->
{
unsigned mode = H5F_ACC_RDWR;
char name[] = "f11.h5";
hid_t file = H5Fopen(name, mode, H5P_DEFAULT);
if (file != H5I_INVALID_HID) {
if (H5Fset_libver_bounds(file, H5F_LIBVER_EARLIEST, H5F_LIBVER_V18) >= 0) {
// object creation will not exceed HDF5 version 1.8.x
}
else
perror("H5Fset_libver_bounds failed.");
if (H5Fclose(file) < 0)
perror("H5Fclose failed.");
}
else
ret_val = EXIT_FAILURE;
}
//! <!-- [libver_bounds] -->
//! <!-- [mount] -->
{
hid_t file = H5Fopen("f11.h5", H5F_ACC_RDWR, H5P_DEFAULT);
if (file != H5I_INVALID_HID) {
hid_t group, child;
if ((group = H5Gcreate1(file, "mount_point", H5P_DEFAULT)) != H5I_INVALID_HID) {
if ((child = H5Fopen("f1.h5", H5F_ACC_RDONLY, H5P_DEFAULT)) != H5I_INVALID_HID) {
if (H5Fmount(group, ".", child, H5P_DEFAULT) >= 0) {
// do something useful w/ the mounted file
}
else {
ret_val = EXIT_FAILURE;
perror("H5Fmount failed.");
}
H5Fclose(child);
}
H5Gclose(group);
}
H5Fclose(file);
}
else
ret_val = EXIT_FAILURE;
}
//! <!-- [mount] -->
//! <!-- [delete] -->
{
#if H5_VERSION_GE(1, 12, 0)
// this function is only available in HDF5 1.12.x
if (H5Fdelete("f1.h5", H5P_DEFAULT) < 0) {
ret_val = EXIT_FAILURE;
}
#endif
}
//! <!-- [delete] -->
return ret_val;
}
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