uWebsocket 在 .message 行为上下文之外通过 WebSocket 发送消息

Question

我必须打开必修课，我在 C++ 方面很垃圾，刚从大学毕业。

我将 uWebsocket 设置为服务器，它目前只是将响应回显给客户端。

我正在尝试在一个单独的线程上设置一个队列，该队列可以在我收到消息时以外的时间响应客户端。我在这里自杀了，因为我找不到主线程上下文之外的函数的合适类型。

void RelaySocket(){
    struct SocketData{
        //Empty because we don't need any currently.
    };
    uWS::App()
    .listen(8766, [](auto *listen_socket){
        if(listen_socket){
            std::cout<< "Listening on port" << 8766<< std::endl;
        };
    })
    .ws<SocketData>("/*",uWS::TemplatedApp<false>::WebSocketBehavior<SocketData> {//I have to explicitly declare the type of this struct.
    .open = [](auto *ws){
        std::cout<< "test"<< std::endl;
    },
    .message = [](auto *ws, std::string_view message, uWS::OpCode opCode){
    
    //The docs show how to send messages from this context, but no other method is demonstrated.
    ws->send("My message");// This works fine enough. 

    //What I'm trying to do.
    outerFunction(ws);
    }

    }).run();
}

void outerFunction([Unknown Type] *ws){// I have NO idea what type would play nice in this spot. I've tried uWS::Websocket<false>, and others to no avail.
//Processes information before replying
...
//sends n amount of reply's.
ws->send("sick Data.");//the outcome I'm looking for. 
}

我试过使用 Type_def 功能，但效果仍然不佳。

std::cout << typeid(ws).name() << std::endl;

返回

PN3uWS9WebSocketILb0ELb1EZ11RelaySocketvE10SocketDataEE

我的第一个 post，如果我没有 post 所有适用的信息，我会很糟糕。

编辑：

。下面的代码对我有用。再次感谢。

struct SocketData{
//Empty because we don't need any currently.
};
void SocketResponse(uWS::WebSocket<false,true,SocketData> *ws ){
ws->send("test");
std::cout<< "test"<<std::endl;
};

Answer 1

从 uWebsocket 文档中，ws 的类型是：WebSocket<SSL, true, int> * 因此，您可以尝试使用以下内容。注意：您可能还需要转发声明 outerFunction。

void outerFunction(uWS::WebSocket<SSL, true, int> *ws);

void RelaySocket(){
    struct SocketData{
        //Empty because we don't need any currently.
    };
    uWS::App()
    .listen(8766, [](auto *listen_socket){
        if(listen_socket){
            std::cout<< "Listening on port" << 8766<< std::endl;
        };
    })
    .ws<SocketData>("/*",uWS::TemplatedApp<false>::WebSocketBehavior<SocketData> {//I have to explicitly declare the type of this struct.
    .open = [](auto *ws){
        std::cout<< "test"<< std::endl;
    },
    .message = [](auto *ws, std::string_view message, uWS::OpCode opCode){
    
        //The docs show how to send messages from this context, but no other method is demonstrated.
        ws->send("My message");// This works fine enough. 

        //What I'm trying to do.
        outerFunction(ws);
    }

    }).run();
}

void outerFunction(uWS::WebSocket<SSL, true, int> *ws){// I have NO idea what type would play nice in this spot. I've tried uWS::Websocket<false>, and others to no avail.
    //Processes information before replying
    ...
    //sends n amount of reply's.
    ws->send("sick Data.");//the outcome I'm looking for. 
}

int main()
{
    RelaySocket();
    return 0;
}

此外，uWS::Websocket 来自 WebSocket.h:

template <bool SSL, bool isServer, typename USERDATA>
struct WebSocket : AsyncSocket<SSL> {
    template <bool> friend struct TemplatedApp;
    template <bool> friend struct HttpResponse;
private:
    typedef AsyncSocket<SSL> Super;

    void *init(bool perMessageDeflate, CompressOptions compressOptions, BackPressure &&backpressure) {
        new (us_socket_ext(SSL, (us_socket_t *) this)) WebSocketData(perMessageDeflate, compressOptions, std::move(backpressure));
        return this;
    }
}

uWebsocket 在 .message 行为上下文之外通过 WebSocket 发送消息

uWebsocket sending messages via WebSocket outside of the .message Behavior context

c++

types

c++17

uwebsockets