On Fri, 27 Apr 2012 11:55:02 -0400, Rene Zwanenburg
<renezwanenb...@gmail.com> wrote:
Which reminds me, does the GC actually block all threads while calling
the destructors on garbage? I'm far from an expert on GC's, but I
believe the mark needs to stop the world, but the sweep can be done
concurrently. If the GC thread calls destructors while the other threads
aren't waiting, there shouldn't be a problem.
AFAIK, this is how it works (world is resumed during sweep). Otherwise,
you would have deadlocks all over the place where you used mutexes in
dtors! Given that arbitrary C library calls may lock something somewhere,
there is no way to avoid this.
The one thing you *can't* do is allocate GC memory inside a dtor.
-Steve
