Method has_backup_request

src/brpc/controller.h:209–209

True if a backup request was sent during the RPC.

    // True if a backup request was sent during the RPC.
    bool has_backup_request() const { return has_flag(FLAGS_BACKUP_REQUEST); }

    // This function has different meanings in client and server side.
    // In client side it gets latency of the RPC call. While in server side,