Socket.io：用户断开连接后客户端（套接字）会发生什么？我可以/应该将其删除吗？

I am using socket.io, and I want to know how can I remove the client(socket) after a connection is closed. (In fact, I don't know what is going on after a connection is close, will that socket remained there? Should I remove it? Will it take up memory?)

我正在使用socket.io,我想知道如何在关闭连接后删除客户端(套接字)。 (事实上,我不知道连接关闭后发生了什么,那个套接字是否会保留在那里?我应该将其删除吗?它会占用内存吗?)

My code:

socket.No = socketNo++;
io.sockets.on("connection",function(socket){
    setInterval(function(){
        console.log("Server calling update collection with socket No.",socket.No);
    },3000);

    //When connection is close()
    socket.on("disconnect",function(){
        console.log("A user disconnected");
    });
})

What happen is that, for example, I disconnect from the server, I find that server is still logging. What can I do so that I can stop it?

发生的事情是,例如,我断开与服务器的连接,我发现服务器仍在记录。我该怎么办才能阻止它呢?

Thanks~

1 个解决方案

#1

In the code above, it is setInterval that is causing the additional logging.

在上面的代码中,导致额外日志记录的是setInterval。

You will need to store off the id returned from setInterval then clear it using clearInterval on a disconnect event.

您需要存储从setInterval返回的id,然后在disconnect事件上使用clearInterval清除它。

Something like:

io.sockets.on("connection",function(socket){
    var intervalId = setInterval(function(){
        console.log("Server calling update collection with socket No.",socket.No);
    },3000);

    //When connection is close()
    socket.on("disconnect",function(){
        console.log("A user disconnected");
        clearInterval(intervalId);
    });
})

Other than that, no need to do anything else with the socket on the server side. It will get garbage collected at some point.

除此之外,无需对服务器端的套接字执行任何其他操作。它会在某个时刻收集垃圾。

#1