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Re: I prefer this kind of clock or watch:

by fraktalisman (Hermit)
on Jan 19, 2006 at 15:34 UTC ( #524254=note: print w/replies, xml ) Need Help??


in reply to I prefer this kind of clock or watch:

I don't wear a wristwatch for about 15 years now.

There are so many clocks and watches everywhere anyway. In school I had the habit (and ability) to read other people's watches.
Much later, when delivering mail on my bike, I still had no celly. But I knew every public clock (at crossroads, apothecaries, in shop windows etc) and every working phone box!

Nowadays, everybody's got cell phones that show the time. This is a little boring in a way ... And I always wonder why on earth would anyone still wear a wristwatch?

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[robby_dobby]: Corion: Heh. This whole thing smells of Strategy Pattern or MVC pattern.
[Corion]: And performance linear to the number of registered one-shots doesn't feel that bad. Maybe I should collect statistics on how many callbacks are outstanding ;)
[Corion]: choroba: Yes, but the longer I thought about efficient hashes mapping the event type back to their callbacks, and how to keep them in sync, the more I thought that all that optimization might just not be worth it, even if it's horribly inelegant
[Lady_Aleena]: My biggest problem with hashes at the moment is one with 2,501 keys.
[choroba]: how many event types are there?
[Corion]: Also I found that I can't conveniently weaken an array slot, which also is inconvenient, as I want my one-shots to disappear if the caller discards them
[Corion]: choroba: Currently two or three that my program handles (WWW::Mechanize:: Chrome), but there might be more that become interesting
[Corion]: But I don't expect more than 100 to be active at the same time, so I'm not really sure if there is a not-too-fancy data structure that is maintained with few lines of code where the performance is better than the linear scan ;)
[Corion]: But I should do a mock-up program so that others can see what I'm talking about ;)
[robby_dobby]: Corion: I hope you know all too well that passing around "fancy" datastructures is a recipe for disaster :-)

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