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Postings from June 2012
On Wed, Jun 20, 2012 at 11:53 AM, Father Chrysostomos <sprout@cpan.org> wrote: > Dave Mitchell asked: >> Whatever happened to PERL_COPY_ON_WRITE? Was it a failure? Should >> it be expunged, or revived? Or left to rot? > > I asked the same question on the eleventh of December. I am still > awaiting a response. > > http://www.nntp.perl.org/group/perl.perl5.porters/;msgid=60396028-D993-4565-8EE9-3746ABB79C27@cpan.org I don't think it was a failure. We have now shared strings for bareword hash keys, files and stash names in strtab already. The remaining problem as I see it, is how to apply that to the general case for which strtab might not scale and be overkill. And as Nick wrote, rewrite his old COW on top of those new shared hash keys. I am also thinking of that in my typed/ro branch as readonly pad strings can/should be shared. I love Nick's approach. If strings are const or typed then it would be safe. const would be super safe, typed as string just much easier. But I'm not there yet. -- Reini Urban http://cpanel.net/ http://www.perl-compiler.org/Thread Previous | Thread Next