How to manage function when use concurrent in livecode? - scope

Question

I have two graphics. These graphics have countdown function. When open card these graphics are start countdown. When countdown reach 0 these graphics are call function "refresh". These graphic are call function in same time. How to manage it?
Here my code on card for graphic use function:
on refresh
if eCount is not empty then
add 1 to eCount
else
put 0 into eCount
end if
wait 300 milliseconds with messages
if eCount >= 2 then
--dosomething()
put empty into eCount
end if
end refresh
Update ---
local eCount
on refresh
add 1 to eCount
if eCount >= 2 then
--dosomething()
put 0 into eCount
else if eCount = 1 then
--dosomethingOnce()
put 0 into eCount
end if
end refresh
When two graphics have call function "refresh" in same time. It's call method "--dosomethingOnce()". How do I fix?
And here my graphic code.
on countDown countT
if countT > 0 then
send "countDown countT" to me in 1 secs
else
send "refresh" to card "Main"
end if
end countDown

Answer 1

Here's another idea that I think may solve your problem (if I understand correctly!)
local eCount, sPending
on refresh
add 1 to eCount
if not sPending then
put true into sPending
send "doSomething" to me in 100 millisecs
end if
end refresh
on doSomething
if eCount = 1 then
-- execute code for 1 timer
else
-- execute code for more than 1 timer
end if
-- reset flag
put false into sPending
put 0 into eCount
end doSomething
If the two timers finish within 100 millisecs of each other then the code for multiple timers will execute - otherwise the code for 1 timer will execute. Adjust the 100 millisec setting to whatever you need.

Answer 2

My understanding is that you want something to happen only when both of the timers have called the refresh function. Try the following ..
local eCount
on refresh
add 1 to eCount
if eCount >= 2 then
--dosomething()
put 0 into eCount
end if
end refresh
by declaring eCount as a script local variable, before the handler, it will retain it's value. When refresh is called the second time, the 'do something' code should execute.