when shall i sleep()? - LUA Scripting - CHDK Forum
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when shall i sleep()?

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Offline mattkime

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when shall i sleep()?
« on: 14 / February / 2009, 21:21:26 »
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i'm working away on sunsetF16 and i think i've figured out what is causing some of the crashes. these crashes - if they can rightfully be call that - consist of the script exiting with the statement "PRESS SHUTTER TO CLOSE" when the script was in an infinite loop. (the purposeful kind) i see less of these statements if i insert a sleep() statement. does that make sense? if so, is there any sort of method for the placement of sleep statements? is sleep(100) better than sleep(1)?
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Offline reyalp

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Re: when shall i sleep()?
« Reply #1 on: 14 / February / 2009, 22:02:32 »
Starving the rest of the camera of CPU would make the camera shut down, not quit with a script error, so it's not clear why the sleeps would help.

If you can make a minimal example that reproduces the problem, that would be helpful. If that's not possible, attach the entire script and clearly describe the circumstances where the problem happens.

edit:
there should be an error message immediately preceding the the "PRESS SHUTTER TO CLOSE" message. This is generated in kbd.c wait_and_end() which should be called if lua_resume() returns an error.
« Last Edit: 14 / February / 2009, 22:06:08 by reyalp »
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Offline mattkime

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Re: when shall i sleep()?
« Reply #2 on: 14 / February / 2009, 22:57:17 »
I hink it may be giving an error - 419. no text.

i previously thought it was some odd debugging info.
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