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[05:26] < Lawouach_> hi guys

[06:55] < MS-> morning

[06:56] < Lawouach_> damn

[06:56] < Lawouach_> I'm trying to run kamaelia and cherrypy with multiprocessing

[06:57] < Lawouach_> but since multiprocessing forks children and since the scheduler and the cherrypy.engine are global module level instances

[06:57] < Lawouach_> the children all share the same objects

[06:57] < Lawouach_> grumble :(

[06:57] < MS-> That's why the scheduler has the zap option...

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[06:58] < Lawouach_> hmmm?

[06:59] < MS-> If you look at

[06:59] < MS-> http://kamaelia.googlecode.com/svn/trunk/Code/Python/Axon/Axon/experimental/Process.py

[06:59] < MS-> It has the same issue in

[06:59] < MS-> ProcessWrap

[06:59] < MS-> So .activate() calls .run()

[06:59] < MS-> .run() wraps .main()

[06:59] < MS-> BUT .run() is the start of a new process, probably from a running kamaelia system

[07:00] < MS-> (or can be

[07:00] < MS-> sp it zaps the scheduler

[07:00] < MS-> background(zap=True).start()

[07:01] < MS-> Without doing that you end up with really wierd effects

[07:01] < Lawouach_> let me see

[07:01] < MS-> It's not the cleanest code in the world I'll grant you

[07:01] < MS-> but it does run. The key thing really is to replace the scheduler with a zapped one

[07:02] < MS-> There may also be latent bugs which I've not found :)

[07:02] < Lawouach_> right

[07:03] < Lawouach_> I'll try replacing the scheduler from my child process

[07:03] < MS-> But it does work

[07:03] < Lawouach_> I'd rather avoid using background

[07:03] *** MS- nods

[07:03] < Lawouach_> though

[07:03] < Lawouach_> let me think

[07:03] < Lawouach_> I'll try

[07:03] < Lawouach_> ta

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[08:05] < Lawouach_> using a code similar to zap (basically creating a new instance of the scheduler) still gives me the same object if from any of my children

[08:05] < Lawouach_> off to lunch, need to rethink about all of this

[08:05] < Lawouach_> something's broken

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[09:22] < Lawouach_> back

[09:22] < Lawouach_> right, well I've thought about it and rather than trying to ensure the unicity of the secheduler instance or the CherryPy engine

[09:23] < Lawouach_> I'm gonna seperate my code so that I run each application in its own Python script started from the command line one by one

[09:23] < Lawouach_> rather than forking that is

[09:39] < Lawouach_> sorry if I sounded harsh by the way, I was frustrated :)

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[10:06] < MS-> OK, I appear to have a simple dirac based webcam video recorder now

[10:06] < MS-> Now, how to add audio sensibly.

[10:07] < vmlemon_> Cool

[10:07] < MS-> Reliable capture is more important than reliable playback after all.

[10:07] < MS-> (The latter can be solved by other means)

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[12:24] < Lawouach_> I think I've fixed that leak :)

[12:25] < MS-> Cool :)

[12:25] < MS-> congrats

[12:25] < MS-> :)

[12:26] < Lawouach_> ta

[12:26] < Lawouach_> mostly some trailing components

[12:29] < Lawouach_> MS-: what value of slowmo do you usualy use?

[12:29] < Lawouach_> I find that 0 isn't good CPU wise

[12:30] < Lawouach_> but 0.02 isn't as good as I thought

[12:30] < Lawouach_> my CPU is still at around 2% (both cores)

[12:30] < MS-> I don't tend to use slowmo - I tend to try to change components to pause ...

[12:31] < MS-> Though if I was doing I'd probably use something like 0.1 as an upper value

[12:31] < MS-> since it's just a time.sleep() in the code

[12:31] < MS-> It doesn't sleep *completely* so that threads can awaken the scheduler

[12:31] < MS-> eg the selector :)

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