That only leaves having a copy of the hash.

Of course it doesn't. You've heard of shared memory?

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority". I knew I was on the right track :)
In the absence of evidence, opinion is indistinguishable from prejudice.

In reply to Re^2: Highly efficient variable-sharing among processes by BrowserUk
in thread Highly efficient variable-sharing among processes by cnd

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