AsyncSockets ??

[Tigran]

Hi..

There is a problem..

 

I call RecieveCallback function, which is CALLBACK function for asynchronious socket's method, BeginRecieve..my kode looks like this...

 

private static void RecieveCallback(IAsyncResult ar)	{

NotifyServer.StateObject so = NotifyServer.StateObject)ar.AsyncState;
		
Socket handle = so.workSocket;
IAsyncResult res = null;
try{
	int bytesRead = -1;
	bytesRead = so.workSocket.EndReceive(ar);
	//MessageBox.Show(bytesRead.ToString());
	if(bytesRead > 0){so.sb.Append(Encoding.ASCII.GetString(so.buffer,0,bytesRead));
				res = handle.BeginReceive(so.buffer,0,MAX_SIZE,0,new AsyncCallback(RecieveCallback),so);					
				//MessageBox.Show(so.sb.Length.ToString());
			}//if		
			else
			   MessageBox.Show(so.sb.Length.ToString()); !!!!!!!!!!!!

		}
		catch(Exception ex){
			MessageBox.Show(String.Format("NotifyServer::RecieveCallback Error {0}",ex.Message));
		}

}

 

The problem is , that method MessageBox hasn't ever been called,why???This seems like operation of recieving data never copletes, but it is wrong, I get all bytes which sent

[PlausiblyDamp]

Does it ever return 0 bytes? If not it will never execute the else portion of the code (as far as I can see)

[Tigran]

This is an interesting thing, because in maybe any sample wrote like this, and more, when I pass this code in debug mode, I check, that after recieving last bytes the line

 

res = handle.BeginReceive(so.buffer,0,MAX_SIZE,0,new AsyncCallback(RecieveCallback),so);

 

doesn't call RecieveCallback method in the recursive loop, how does it understand that thet are no more bytes , if doesn't call this method ???