Interrupt a thread in DatagramSocket.receive
A common idiom for interrupting network IO is to close the channel. That would be a good bet if you need to effectively interrupt it while its waiting on sending or receiving.
public class InterruptableUDPThread extends Thread{ private final DatagramSocket socket; public InterruptableUDPThread(DatagramSocket socket){ this.socket = socket; } @Override public void interrupt(){ super.interrupt(); this.socket.close(); }}
As far as I know, close() is the proper way to interrupt a blocked socket. Interrupting and keeping open something that may have already done a partial read or write makes things unnecessarily complex. It's easier to only have to deal with a "success" or "give up" result.
DatagramSocket.receive blocks until it receives a datagram. Probably what you need to do is use setSoTimeout to make it timeout.