Hi again,
I think I must apologize for not being clear enough in my last question.
Truth is I'm a real newbie with C# and so I tend to obfuscate code a bit
too much.
What I'd want to do really is a very simple multi-threaded server
application. What I mean by multi-threaded is that each connection be
handled by a separate thread. In Java you would do something like this:
create a handler class extending Thread:
class Handler extends Thread {
Socket socket;
public Handler ( Socket s ) { this.socket=s; }
public void run () {
// handle the request...
}
}
...
Now create a ServerSocket which would spawn a new handler Thread for
every accepted connection:
Socket s = serversocket.accept ();
new Handler ( s ).start ();
I am experiencing massive difficulties trying to mimic this behaviour in
C#:
I begin by creating a "Handler" class, I call "Connection":
public class Connection {
public Socket socket;
public Connection ( Socket s ) {
socket = s;
}
public void handleConnection () {
try {
Console.WriteLine ( "Connection accepted" );
socket...
} catch ( Exception e ) {
Console.WriteLine ( "Error....." + e );
}
}
}
Then, I try to make a TcpListener spawn a new Thread for every accepted
connection, exactly like in Java:
while ( true ) {
Socket s = myList.AcceptSocket ();
Connection con = new Connection ( s );
Thread handlerThread = new Thread ( new ThreadStart
( con.handlerConnection ) );
handlerThread.start ();
}
Well, the above code complains with a System.NullReferenceException,
apparently due to a non-existend socket object in the threaded code.
This must all be due to my total ignorance of C# and it's handling of
multiple threads. I've tried to fiddle a bit with delegates but without
success.
Please somebody tell me what's wrong.
Thanks in advance,
Candide Kemmler
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