On Mar 8, 2007, at 14:21 , David Roundy wrote:
I'm thinking you're missing the point. The point is to copy without
writing, and that requires some knowledge (whether static or
runtime) of
whether anyone else has a reference to my data--which copy-on-write
won't
give me.
Actually, I was thinking this sounded a lot like DiffArrays. You
don't actually get a guarantee that anything else isn't holding a
reference, but you do get destructive update with any old references
being quietly changed to diffs against the head.
--
brandon s. allbery [linux,solaris,freebsd,perl] [EMAIL PROTECTED]
system administrator [openafs,heimdal,too many hats] [EMAIL PROTECTED]
electrical and computer engineering, carnegie mellon university KF8NH
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