Thanks to Patrick and Richard for pointing out timeofday(); I was
imagining that I'd have to do some server-side-code magic to get that.
But I'm still hoping that someone will have a better solution - using
this I still need a near-global lock between setting the timestamps and
committing the transaction. Surely last-modified timestamps and
cache-refreshing are being used all over the place...
Regards,
--Phil.
