Interrupting a Thread thats blocking for I/O

Question

OK, here is the problem. I need to interrrupt a thread that is blocking on I/O. The run method of my thread looks something like this...
run(){
while(connected){
try{
recieved = in.readLine();
// do something with recieved data
} catch(InterruptedIOException e){
// do something
} catch(SocketException e){
// do something else
} catch(IOException e){
// do some more of something else
I also have a fuction like this...
private void stop(){
connected = false;
myThread.interrupt();
None of this appears to be working. The interrup method runs but no exceptions are thrown. I need to be able to tell the thread to stop blocking for I/O an stop running. Is there some other way, or am I on the right track and its just coded wrong? Any help would be great.

Answer 1

There are 2 reasons for your code to mallfunction:
1. You should catch an InterruptedException first (this is thrown at Thread.interrupt()), not InterruptedIOException (which comes from the Socket).
2. For ensuring your thread.stop, you have messed up 2 different techniques:
Setting the connected = false in your stop method could make you jump out your whole while loop, so you will never reach you code in the catch blocks.
You also call myThread.interrupt() so if you stop() method occurs in the middle of processing, you will end-up in you catch(InterruptedException) block.
So there are 2 distinct reactions that may occur at your stop(), depending on them moment when it is called, which doesn't look so good.
Depending on how you want your code to behave (to end-up in the catch block or after the whole while loop) use just one of the instructions in your stop() method. It is recomended that you keep 'connected = false', but then you have to watch out the blocking IORead :(