[Boost-users] boost thread query

Hi: I have two threads that are started by a class created by the applications main thread. Can the thread function be a private member of that class or does it need to be public? When the application exits I need the threads to be notified and exit. What is the best way of handling this? I need this to be cross platform but in windows I would have used a waitforSingleObject and signalled the event when the main thread wants to exit. Could I use a condition for this, and do a do while loop waiting on the condition to be notified, if I do this do I need a mutex just for the condition? Any help appreciated. Cheers Sean.