Is websocket single threaded?

[z you]

sleep onOpen or onMessage, Unable to accept connections and process messages for other connections

void OnMessage(WebsocketServer *server, websocketpp::connection_hdl hdl, message_ptr msg)  {
  string strMsg = msg->get_payload();
  string strRespon = "receive: " + strMsg;
  std::this_thread::sleep_for(std::chrono::milliseconds(10000));

}

[Jacob Burckhardt]

WebSocket++ supports multi-threaded applications but you have to create the threads yourself.  WebSocket++  does not create the threads for you as explained by the documentation:

In order to process user input while network processing occurs in the background we are going to use a separate thread for the WebSocket++ processing loop. This leaves the main thread free to process foreground user input.

Your test example sleeps, but your real program would probably replace sleep with code that does useful work using CPU time.  You probably want that work to be done in another thread if it takes a significant amount of time.  You could make ​OnMessage put the message in a queue and another thread could pop from that queue and spend as much time as it needs processing the message while the WebSocket++ thread still accepts connections and processes messages for other connections.

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From: webso...@googlegroups.com <webso...@googlegroups.com> on behalf of z you <zyy455...@gmail.com>
Sent: Saturday, July 23, 2022 7:41 AM
To: WebSocket++ <webso...@googlegroups.com>
Subject: Is websocket single threaded?

 

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