Linux - SocketException: Operation on non-blocking socket would block

I have a TCPListener running in Unity that accepts TCPClients in a blocking fashion in a separate thread. It works perfect in a Windows standalone build, but throws a

Code (csharp):

1. SocketException: Operation on non-blocking socket would block

in a Linux standalone build.

Here's the code for it:

Code (csharp):

1.  
2.         try
3.         {
4.             // Set the TcpListener on port 39999.
5.             int port = 39999;
6.             IPAddress localAddr = IPAddress.Parse("127.0.0.1");
7.  
8.             server = new TcpListener(localAddr, port);
9.  
10.             server.Server.ReceiveTimeout = 3000; // 3 second timeout
11.  
12.             // Start listening for client requests.
13.             server.Start();
14.  
15.             // Buffer for reading data
16.             byte[] bytes = new byte[10000000]; // 10 MB
17.             string data = null;
18.  
19.             // Enter the listening loop.
20.             while (alive)
21.             {
22.                 // Perform a blocking call to accept requests.
23.                 // You could also user server.AcceptSocket() here.
24.                 TcpClient client = server.AcceptTcpClient();
25.                 client.Client.Blocking = true;
26.  
27.                 data = "";
28.  
29.                 // Get a stream object for reading and writing
30.                 NetworkStream stream = client.GetStream();
31.  
32.                 int i;
33.  
34.                 // Loop to receive all the data sent by the client.
35.                 while ((i = stream.Read(bytes, 0, bytes.Length)) != 0 && alive)
36.                 {
37.                     // Translate data bytes to a ASCII string.
38.                     data += System.Text.Encoding.ASCII.GetString(bytes, 0, i);
39.  
40.                     // Process the data sent by the client.
41.                    ...
42.                    [code to parse json strings]
43.                    ...
44.                 }
45.  
46.                 // Shutdown and end connection
47.                 stream.Close();
48.                 client.Close();
49.             }
50.         }
51.         catch (SocketException e)
52.         {
53.             Ex = e.Message;
54.         }
55.         finally
56.         {
57.             // Stop listening for new clients.
58.             server.Stop();
59.         }
60.  

Any ideas why it works in Windows but not Linux? Thanks!

Edit: Unity version 5.3.4f1

 

Hey! Did you ever solve this issue? I'm running into a similar one.