Have pondered the issue of ensuring that the OS does *not* label a
seemingly-'frozen' LC app as unresponsive. The following code (which I haven't
actually tried in LC, shame on me) might be helpful. Some notes after the code…
========================
local KeepMeAlive = false
local NumSecs = 4
on LifeLine DerStatus
case DerStatus = "on"
put true into KeepMeAlive
TickleMe
break
case DerStatus = "off"
put false into KeepMeAlive
break
default
exit to top
end case
end LifeLine
on TickleMe
if KeepMeAlive = true then send "TickleMe" to me in NumSecs seconds
end TickleMe
========================
How to use this code: Put the code into your stack script, or a backscript, or
wherever, as you deem appropriate. When a handler has a time-consuming chunk of
code in it, do the following:
LifeLine ("on")
-- Time-consuming
-- chunk
-- of
-- code
LifeLine ("off")
I used the case structure to provide for any future use-case in which you want
more options than just "keep this thing alive" or not. NumSecs is a local
variable so that it can be easily adjusted in case this code is run under an OS
that thinks, say, 2 seconds is a long-enough period to justify treating an app
as unresponsive.
========================
It occurs to me that if you're looking for specific strings in a Very Large
File, and you're reading the VLF in N-character-long chunks, you want to be
careful that you don't overlook instances of a sought-for string which have a
between-chunks boundary within them.
Say you're reading 1000-character chunks, and your sought-for StringX *starts*
at char 999 within the VLF. In this case, only character 1 of StringX will be
found within the first chunk; only characters 2 thru -1 of StringX will be
found within chunk 2. If you *just* look *within* each chunk as you read it,
you won't find the instance of StringX which started at character 999.
"Bewitched" + "Charlie's Angels" - Charlie = "At Arm's Length"
Read the webcomic at [ http://www.atarmslength.net ]!
If you like "At Arm's Length", support it at [
http://www.patreon.com/DarkwingDude ].
_______________________________________________
use-livecode mailing list
use-livecode@lists.runrev.com
Please visit this url to subscribe, unsubscribe and manage your subscription
preferences:
http://lists.runrev.com/mailman/listinfo/use-livecode
