daemon thread cleanup approach

[Miki Tebeka]

Greetings,

> Ok, so I have an issue with cleaning up threads upon a unexpected exit. 
What do you mean by "unexpected exit"? Uncaught exception? SIGTERM? ...

> Using atexit doesn't work because it's called after the daemon threads are killed.
I don't follow. Who is killing the daemon threads?

> ...
> It it possible that this will cause the program to hang in any case? 
If due to a bug in the cleanup thread it hangs - the program will hang as well.

All the best,
--
Miki