Can't connect to socket cluster server
kevinvella opened this issue · comments
I have a weird issue. When connecting to a a web socket server using the domain name in a xamarin mobile application, the server is logging "SocketProtocolError: Socket hung up" and from the client "System.InvalidOperationException: Operation already in progress"
When i try the code from a console application, the client connects fine and is able to send and receive data
ScClient.Offical version is 1.1.2
Socket Cluster server versions:
"dependencies": {
"connect": "3.0.1",
"express": "4.14.0",
"minimist": "1.1.0",
"morgan": "1.7.0",
"sc-errors": "^1.4.0",
"sc-framework-health-check": "^2.0.0",
"sc-hot-reboot": "^1.0.0",
"scc-broker-client": "^3.0.0",
"serve-static": "1.11.2",
"socketcluster": "^11.2.0",
"socketcluster-client": "^11.0.1"
}
public class SCService
{
private Socket socket;
public SCService()
{
try
{
socket = new Socket("ws://bbtest.eu-4.evennode.com/socketcluster/");
socket.SetReconnectStrategy(new ReconnectStrategy().SetMaxAttempts(30));
socket.SetSslCertVerification(false);
//socket.SetAuthToken("12345678");
socket.SetListerner(new SocketClusterListener());
socket.Connect();
}
catch (Exception ex)
{
}
}
public Socket Socket
{
get => socket;
}
}
public class SocketClusterListener : IBasicListener
{
private string TAG = "SocketCluster";
public void OnConnected(Socket socket)
{
Debug.WriteLine($"{TAG} - connected got called");
}
public void OnDisconnected(Socket socket)
{
Debug.WriteLine($"{TAG} - disconnected got called");
}
public void OnAuthentication(Socket socket, bool status)
{
Debug.WriteLine(status ? $"{TAG} - Socket is authenticated" : $"{TAG} - Socket is not authenticated");
}
public void OnSetAuthToken(string token, Socket socket)
{
socket.SetAuthToken(token);
Debug.WriteLine($"{TAG} - on set auth token got called");
}
public void OnConnectError(Socket socket, SuperSocket.ClientEngine.ErrorEventArgs e)
{
Debug.WriteLine($"{TAG} - Error on Connection... {e.Exception}");
}
}
Hi @kevinvella , can you give me detailed log for this?
Hi @sacOO7,
What information do you need? Running platforms, etc...?
Hi @sacOO7
Created a simple repository containg a console application and a xamarin forms application containing both android u ios. Repository here https://github.com/kevinvella/Socket-Cluster-Test
The exception that occurs on the xamarin forms app is the following:
SocketCluster - Error on Connection... System.InvalidOperationException: Operation already in progress at System.Net.Sockets.SocketAsyncEventArgs.SetLastOperation (System.Net.Sockets.SocketAsyncOperation op) [0x00021] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.10.1.177/src/Xamarin.iOS/mcs/class/System/System.Net.Sockets/SocketAsyncEventArgs.cs:193 at System.Net.Sockets.Socket.InitSocketAsyncEventArgs (System.Net.Sockets.SocketAsyncEventArgs e, System.AsyncCallback callback, System.Object state, System.Net.Sockets.SocketOperation operation) [0x00030] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.10.1.177/src/Xamarin.iOS/mcs/class/System/System.Net.Sockets/Socket.cs:2727 at System.Net.Sockets.Socket.ReceiveAsync (System.Net.Sockets.SocketAsyncEventArgs e) [0x00073] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.10.1.177/src/Xamarin.iOS/mcs/class/System/System.Net.Sockets/Socket.cs:1375 at SuperSocket.ClientEngine.AsyncTcpSession.StartReceive () [0x0000c] in <dbd80dafc8794140aef5960a6254d156>:0 SocketCluster - disconnected got called
Hi @kevinvella , will take a look at it 👍
HI @kevinvella , I think it might be creating multiple service objects, so trying to connect to server multiple times. Can you move connect method somewhere else. It might work ...
Also make sure you have proper permission to have network access. I think currently the connection might be running on UI thread. So you need to connect to server on background thread probably.
Connected to localhost with following
socket = new Socket("ws://127.0.0.1:8000/socketcluster/");
With the following it doesn't connect
socket = new Socket("ws://localhost:8000/socketcluster/");
Also tested with
Task.Run(() =>
{
socket.Connect();
});
Will check later.
One more thing on the console app i'm able to connect to the socket using the domain name as in socket = new Socket("ws://localhost:8000/socketcluster/");
Hi @kevinvella , any updated on this? If it's working, I will be closing the issue 👍
Hi @sacOO7 ,
Sorry for not posting any sooner. I haven't had any time to test. I switched to PureSocketCluster and it worked due to a project time constrains.
I don't think the problem is in your lib. I think it's more related to how WebSocket4Net is working. Should we link this issue to WebSocket4Net repo issues?
Hi @kevinvella , it should work on both libraries. I will look into the issue 👍 .
Ok. Thanks. If i have time, i will also take a look
Hi,
Any updates on this?
Hi @sacOO7,
Ok. just fyi the hosting provider of the test app is evennode.com.