On Tue, 7 Jul 2009 11:14:02 +0100 Chris Vine <chris@xxxxxxxxxxxxxxxxxxxxx> wrote: > Richard's approach can be made to work on unix-like OSes (ie those > where the underlying threading is pthreads) because it respects mutex > ownership of a locked mutex and the result of double locking a > non-recursive mutex is defined in pthreads if you choose > PTHREAD_MUTEX_NORMAL as the mutex type, as deadlocking is mandatory in > that case, but not otherwise (this is from the POSIX standard): [snip] Sorry, scrub that, it's wrong, because this scheme cannot respect mutex ownership. There is no way you can get the deadlocking thread to unlock the mutex it is blocking on - it would need to be a different thread, which is undefined behaviour. Semaphores or conditional variables it is then. Chris _______________________________________________ gtk-list mailing list gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list
