[Gc] Interesting behavior under heavy I/O load...not
sure I cando anything about it.
hans.boehm at hp.com
Tue Dec 8 14:52:00 PST 2009
> From: Ivan Maidanski
> I think the opposite - the wrappers are hard to write in
> C/C++ (if having a lot of places to be wrapped).
> I'd prefer macros, something like:
> ... // some vars defined
> ... // some non-pointer vars used
> This was possible with some older GC versions (which have
> broken (by design) do_blocking implementation).
> Unfortunately, I don't think macros-based do_blocking
> construction ever possible in C (contrary to Java 2).
The problem is that we really want a frame in between to hold the callee-save register values from the context, to make sure they're scanned.
With C++0x lambda expressions, or some other form of closure support, this problem should basically disappear. But I don't know of any plans to support closures in standard C.
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