[asterisk-users] While loop inside recursive calls

Ethy H. Brito ethy.brito at inexo.com.br
Tue Mar 21 12:31:04 CDT 2017


Hi All

What happens if I, inside of a while/endwhile loop, call recursively a
macro that itself has another while/endwhile loop and calls exitwhile() inside the
recursive call?

[macro-recursive]
instance=$ARG1
if instance>3
	macroexit
X=1
_var1=""
; recursive loop
while(Dcondition)
	_var1=value_${X}
	recursive(instance+1)
	if var1==""
		ExitWhile()
	X=X+1
	some_Dcondition_changing
	bla...
	bla...
EndWhile
macroexit

[some_running_context]
; Main loop
while(Zcondition) 
	recursive(1)
	if (var1=="")
	    ExitWhile
	some_Zcondition_changing
	bla...
	bla...
endwhile
more_intructions
MacroExit

The problem I see is if I reentry "macro-recursive" a the second time,
Macroexit returns to "more_instructions" at "some_running_context" (just after
the Main Loop endWhile). It should return to 'if (var1=="")' at the previous
"macro-recursive" call.

It is like the second call to "macro-recursive" overwrites the first
"macro-recursive" while/endwhile loop return point, and the second ExitWhile
exits from the while/endwhile at "some_running_context" and not from first
"macro-recursive" instance.

In short: second (and subsequent??) call to macro-recursive is ExitWhile()ing
from "some_running_context" while loop. First call exits ok.

Any directions to share?

Is this explanation too complicated to understand?

Regards

Ethy



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