Function does_error_affect_main_socket

src/brpc/controller.cpp:775–783

}

inline bool does_error_affect_main_socket(int error_code) {
    // Errors tested in this function are reported by pooled connections
    // and very likely to indicate that the server-side is down and the socket
    // should be health-checked.
    return error_code == ECONNREFUSED ||
        error_code == ENETUNREACH ||
        error_code == EHOSTUNREACH ||
        error_code == EINVAL/*returned by connect "0.0.0.1"*/;
}

//Note: A RPC call is probably consisted by several individual Calls such as
//      retries and backup requests. This method simply cares about the error of