what is the algorithm to handle multiple clients in socket programming?

Question

I am proceeding to make a code for handling multiple clients in socket programming but i am not having idea for even the algorithm. I dont know how to proceed. Can anyone help me with the algorithm ? Thanks in Advance

What kind of protocol? It's quite common to handle multiple UDP clients from a single-threaded server. Certainly doable with TCP too, just use `select()`. — unwind, Mar 15 '12 at 13:42
There is a huge variety of techniques, summarized in the [C10K overview](http://www.kegel.com/c10k.html), which also has a good bibliography on the subject. — bereal, Mar 15 '12 at 13:42

score 0 · Answer 1 · edited May 23 '17 at 11:48

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The one which I think would be good is by having a multithreaded server with each thread listening on a single port or multiple ports.

Though there is a possibility of creating a multiprocess server I still recomend using a multi-threaded one. Reasons are in here

edited May 23 '17 at 11:48

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answered Mar 15 '12 at 14:14

Shash

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First, it any case, there is a single thread which is actually _listening_ the port (the one that calls `accept()`). Second, to recommend a multi-threaded over multiprocess is similar to recommending a fork over a spoon not asking what is on the plate. – bereal Mar 15 '12 at 16:13

score 0 · Answer 2 · answered Mar 15 '12 at 15:18

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I think maybe you should try to use either event-driven model(like select()) or multi-thread model. It depends on what you intend to do.

answered Mar 15 '12 at 15:18

Tao Feng

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score 0 · Accepted Answer · answered Mar 15 '12 at 15:22

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I would download the Apache code - It achieves this and seems to be a reasonable algorithm.

answered Mar 15 '12 at 15:22

Ed Heal

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score -1 · Answer 4 · answered Mar 15 '12 at 15:32

I wrote a simple chat in Java once. You can check out the source here: github.com/Samuirai/Java

The basic design is the following:

ServerSocket serverSocket = new ServerSocket(4444);
System.out.println("Server started");
while (true) {
   Socket client = serverSocket.accept();   
   System.out.println("Client connected");
   ClientConnection conn = new ClientConnection(client, this);
   this.connections.add(conn);
   new Thread(conn).start();
}

The Server waits for a client to connect. When a Client connects, it adds a new Connection to a List and starts a Thread which handles the connection with the Client. The Project has three important files you should check out: ChatServer, ChatClient and ClientConnection. I hope the code is easy to understand.

what is the algorithm to handle multiple clients in socket programming?

4 Answers4