[Catalyst] C::P::PageCache patch for reducing duplicate processing

[Perrin Harkins]

On Thu, 2006-06-22 at 14:01 -0500, Wade.Stuart at fallon.com wrote:
> Or have the first hit after the expire set the expire time counter to the
> next interval so the next hit does not even think to rebuild.  Then you can
> also rebuild the cache to a temp name and overwrite the current cache when
> it is complete.  This way to sleeping is required on long building pages
> with many hits (they all just serve the old page until the new one
> overwrites in an atomic write).

FYI, that's how Mason does it.

- Perrin