On Oct 24, 2011, at 7:12 AM, Steven Schveighoffer wrote: > > When waiting on a condition, you must have its associative mutex locked, or > Bad Things could happen. You should also have the mutex locked when > signaling the condition, but I don't think that's an absolute requirement. > > The key here is, waiting on a condition atomically unlocks the mutex. If > waiting on a condition was allowed without locking the mutex, potentially > thread2 could miss thread1's signal, and you encounter a deadlock!
Bartosz just posted a tutorial on Mutexes and Conditions. How timely: http://www.corensic.com/Learn/Resources/ConcurrencyTutorialPartSeven.aspx
