[plt-scheme] Continuations

From: Robby Findler (robby at cs.uchicago.edu)
Date: Sat Nov 18 18:01:27 EST 2006

Is that an automatic transformation of the program, or does the  
servlet programmer have to specify what to put into the url and how  
to rebuild the context?


On Nov 18, 2006, at 4:34 PM, Jay McCarthy wrote:

> Shriram is referring to my URL-Param library on PLaneT.
> This library allows the web-server to encode the values of
> dynamic-variables (in particular, cells) into the URLs that your users
> receive. If the continuation associated with the URL is expired by the
> time the URL comes back into the system, the values are parsed out of
> the URL and available for a recovery program to recreate the program
> state and stack.
> I have found---with Continue---that most users do not notice when the
> URLs expire with this functionality. It takes about 60 lines of code
> to recreate an approximation of the stack and nothing to store the
> values of Web cells the application already uses.
> Jay
> -- 
> Jay McCarthy <jay.mccarthy at gmail.com>
> http://jay.teammccarthy.org
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