Query whether a thread is running

[andras toth <grossespinne gmail com>]

Hello!

Is it possible to query somehow whether a Glib::Thread * instance is running?
Does the joinable() method do this or does it just return the flag
that was given to the Thread::create() ?
Of course I could just have a separate bool flag for each thread which
I update manually, but I was wondering if there is some better
solution.

Thanks,

Andras