Creating an .h5 file and accessing an existing file

The following functions are provided to create new or access existing .h5 files

• int dm_h5_create(char *filename, hid_t *ptr_h5_file_id, char *error_string) As its name suggests this function will create a new .h5 file at the location specified with *filename. It will return either DM_FILEIO_SUCCESS or DM_FILEIO_FAILURE.
• int dm_h5_openwrite(char *filename, hid_t *ptr_h5_file_id, char *error_string) This function will open an existing .h5 file specified by *filename with write access. Use this if you wish to modify the contents of the file. It will return either DM_FILEIO_SUCCESS or DM_FILEIO_FAILURE.
• int dm_h5_openread(char *filename, hid_t *ptr_h5_file_id, char *error_string) This function will open an existing .h5 file specified by *filename with read-only access. Use this if you just wish to examine the contents of the file. It will return either DM_FILEIO_SUCCESS or DM_FILEIO_FAILURE.

After you're done with the file you should release its identifier by calling void dm_h5_close(hid_t h5_file_id).