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Pietro
2 Posts |
 Posted - 03/05/2016 : 16:16:30
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Hey guys,
I'm not the master in programming. But I can do some relatively complex keystrokes stuff (using loops, tables and input boxes) to automate boring tasks, that I have to do in my music software. Like rendering stems.
Is there a way to instantly stop the script from further execution? I do a lot of hit and miss stuff (delays is one of those variables, I have to check on a living organism) and I'd like to stop the script from progressing as soon as I see something going wrong. The only way I see now is just exiting S+.
Cheers,
- Piotr |
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Rob
USA
2615 Posts |
Posted - 03/05/2016 : 16:26:22
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That's actually an interesting one. Since the script will continue executing in one thread, you'll need to set a flag somewhere outside of, but accessible by, the running script's thread. There are many ways to handle this, but a simple one I just tested is this:acMessageBox("starting")
acDelay(10000)
if acGetNumber() == 1 then
acSetNumber(0)
return
end
acMessageBox("continue script")Then, in a separate action (or S+ hotkey maybe easier), put this:acSetNumber(1) So basically, once you call the acSetNumber to store the number 1 inside S+, you can check that number in your main script, if it's 1, set it back to 0 and exit the script ("return"). |
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Pietro
2 Posts |
Posted - 03/06/2016 : 07:02:22
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Thanks. This could actually work. Only thing is, I would need to place the "control point" in a couple of places within the loop, otherwise a lot could go wrong in the meantime, and not everything is undoable.
I was also looking for a way to kill StrokesPlus and restart it with a (non S+) key macro. Not sure how to kill the process using only keyboard?
If I were to have a feature request, that single key/gesture to immediatelly stop scripts from fuher execution would be on my priority list.
Thanks! This is generally an incredibly useful piece of software.
- Piotr |
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Rob
USA
2615 Posts |
Posted - 03/06/2016 : 10:39:04
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Lua scripts (the scripting engine used by S+) are single-threaded and there's really no safe way to stop the script from the application (S+). Meaning, you would have to build that into your script itself. I can certainly force-kill the whole Lua engine, but not without causing S+ to crash as well; or at a minimum have to create an exception handler to catch the crash, but then it leaves things in a not so great state and isn't worth the risk. The other alternative is to use debug hooks, but that would slow down all of S+ and also not be worth it. Look at the second response on this post, it explains it quite well: http://stackoverflow.com/questions/9135200/break-a-lua-script-in-c-from-another-thread
You may also read up on Lua coroutines/yielding: http://www.tutorialspoint.com/lua/lua_coroutines.htm
Coroutines let you pause and resume execution paths. It's certainly a more advanced topic and I'm not even sure if it would be useful based on what you're doing, since I don't know exactly what the purpose of your script is.
I modified one of the examples on that page to use acMessageBox instead of print, since print wouldn't show you anything in S+ (you can copy/paste the whole block of code below into a single action).
function getNumber()
local function getNumberHelper()
co = coroutine.create(function ()
coroutine.yield(1)
coroutine.yield(2)
coroutine.yield(3)
coroutine.yield(4)
coroutine.yield(5)
end)
return co
end
if(numberHelper) then
status, number = coroutine.resume(numberHelper);
if coroutine.status(numberHelper) == "dead" then
numberHelper = getNumberHelper()
status, number = coroutine.resume(numberHelper);
end
return number
else
numberHelper = getNumberHelper()
status, number = coroutine.resume(numberHelper);
return number
end
end
for index = 1, 10 do
acMessageBox("index: "..index.." - getNumber():"..getNumber())
end |
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Stop script execution
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