Method Echo

test/brpc_server_unittest.cpp:360–367

    EchoServiceV2() : ncalled(0) {}
    virtual ~EchoServiceV2() {}
    virtual void Echo(google::protobuf::RpcController*,
                      const v2::EchoRequest* request,
                      v2::EchoResponse* response,
                      google::protobuf::Closure* done) {
        brpc::ClosureGuard done_guard(done);
        response->set_value(request->value() + 1);
        ncalled.fetch_add(1);
    }
    butil::atomic<int> ncalled;
};