Subj : Re: Deadlock theorem
To   : comp.programming.threads
From : Uenal Mutlu
Date : Mon May 02 2005 07:00 am

"Joe Seigh" wrote
>
> Releasing a lock doesn't block, so there's no requirement on any
> release order, though you can't reacquire the lock if you hold locks
> further down in the hierarchy without releasing those locks first.

Do you mean that the following case is not possible with hierarchical locking?
o1.Lock();
o2.Lock();
o3.Lock();
o1.Unlock()
o2.Unlock();
o1.Lock();

With my method this is possible. And this also shows that the
methods indeed aren't the same.

.