I am new to sockets, and figuring out this sample application code :

while (true ) {

line = in.readLine();

sout.write(line+"\r\n");
sout.flush();

if (line.trim().equals("x") ) {break;}

}

So, why does in.readLine() block, and what could it possibly be waiting for ?
Setting a break point after in.readLine() it never hits.
I guess socket code blocks by default when you tell it to read, and it is empty ?

I see that "in" is a System.in socket, so I guess it is some kind of global server socket.

When it gets something, it is reflected to the IQFeed socked that I watch for my data, so I would like to know what I might have to deal with while watching the data.

if an "x" arrives my whole feed is going to be shutdown.

So, I would like to better understand this code.

---

Joe paladin

Windows sockets block by default....it's waiting for data to arrive. You can easilly set the sockets to non-blocking, suggest digging into some socket documentation/reading if you want to go much further.

- Jeff