Mark Wieder wrote:
On 11/07/2015 09:13 AM, Richard Gaskin wrote:
This works:
command SomeTimer
DoSomething
send "SomeTimer" to me in 500 millisecs
end SomeTimer
This doesn't work:
private command SomeTimer
DoSomething
send "SomeTimer" to me in 500 millisecs
end SomeTimer
I can kinda understand why, but I'd like to be able to manage a timer
from within a library without exposing the timer to other scripts.
Anyone know of a trick for that?
Nope. That has never worked.
I've resigned myself to making the targets of send and dispatch commands
public. The only way I can think of to get around this is to make a
public method that then calls the private one. Same thing with callback
handlers.
Inelegant, but this seems to at least block outside callers:
on SomeTimer
put item 1 of line -2 of the executionContexts into tCaller
if (tCaller is not empty) AND (tCaller <> the long id of me) then
exit SomeTimer
end if
--
DoSomething
send "SomeTimer" to me in 500 millisecs
end SomeTimer
PS - a pleasant timing surprise:
One of the things I was testing this morning was the CPU impact of
frequently polling for the existence of a file. I have two processes
which (for reasons not worth getting into here) can't talk via sockets,
so I wondered how inefficient it might be to have them communicate via
files. Turns out checking for the existence of a specified file isn't
bad at all.
Testing a worst-case I polled every millisecond and it never chewed up
more than 4% of CPU time. Throttling back to a more reasonable 500 ms
never registered higher than 0%.
Not sure how well that would work on Windows, but OS X and Linux file
system caching seems to make even brute force solutions like polling
pretty nice.
--
Richard Gaskin
Fourth World Systems
Software Design and Development for the Desktop, Mobile, and the Web
____________________________________________________________________
ambassa...@fourthworld.com http://www.FourthWorld.com
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