-struct ovsdb_error *ovsdb_file_open(const char *name, int flags,
- struct ovsdb_file **) WARN_UNUSED_RESULT;
-void ovsdb_file_close(struct ovsdb_file *);
-
-struct ovsdb_error *ovsdb_file_read(struct ovsdb_file *, struct json **)
- WARN_UNUSED_RESULT;
-struct ovsdb_error *ovsdb_file_write(struct ovsdb_file *, struct json *)
- WARN_UNUSED_RESULT;
-struct ovsdb_error *ovsdb_file_commit(struct ovsdb_file *)