enum fh_referent fh_get_referent (const struct file_handle *);
const char *fh_get_encoding (const struct file_handle *);
+bool fh_equal (const struct file_handle *, const struct file_handle *);
+
/* Properties of FH_REF_FILE file handles. */
const char *fh_get_file_name (const struct file_handle *);
const char *fh_get_file_name_encoding (const struct file_handle *handle);