How can I tell reliably if a boost thread has exited its run method?

Question

I assumed joinable would indicate this, however, it does not seem to be the case.

In a worker class, I was trying to indicate that it was still processing through a

Answer 1

This may not be a direct answer to your question, but I see the thread concept as a really light-weight mechanism, and intentionally devoid of anything except synchronization mechanisms. I think that the right place to put "is running" is in the class that defines the thread function. Note that from a design perspective, you can exit the thread on interrupt and still not have your work completed. If you want to clean up the thread after it's completed, you can wrap it in a safe pointer and hand it to the worker class.