Experimental IRC log happs-2008-09-26

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These logs are provided as an experiment in indexing discussions using IRCHub.py, Irc2RDF.hs, and SIOC.

19:19:28<dcoutts>ACTION is currently at a talk by a chap from Deutsche Bank
19:19:34<dcoutts>they are using HAppS for an internal trading system
19:20:11<eelco>they don't seem to use HAppS-State though
19:20:25<dcoutts>right
19:20:32<eelco>oh, old HAppS even
19:21:21<eelco>wait, that's the first version
19:53:46<Saizan_>0.8.4?
20:09:59<mmmdonuts>What are my options for maintaining a global data table in happs, that is available to all requests, and updated during the handling of requests, but not persistent in the HAppS-State sense?
20:10:22<mmmdonuts>For example, I could use a Hashtable since it's actually mutable.
20:10:42<mmmdonuts>But what about a Data.Map ?
20:11:03<Saizan_>you can put it in a MVar
20:11:39<mmmdonuts>Thanks.
20:14:11<mmmdonuts>Out of curiosity, is there any way to use a monad to achieve this, the way you might do in an ordinary program?
20:14:38<mmmdonuts>(I guess threading might interfere with that...?)
20:22:32<Saizan_>you can use a monad to pass the MVar around
20:23:31<Saizan_>but yeah to communicate between threads you need something mutable like MVar or message passing e.g. using a Chan
20:23:54<mmmdonuts>"use a monad to pass the MVar around" - damn, you're good. :)
20:24:12<mmmdonuts>But thanks, you've answered the question I was wondering about.
20:26:27<Saizan_>look at STM too
21:03:12<eelco>Saizan_: yes, but that was two years ago, the most recent version uses the current HAppS

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