Stack Overflow

Dieuz · December 18, 2006

I know there's alot of topic about this subject on the forum but no one seem to help me so I made this one. I just made a new script and I'm getting this Stack Overflow error. Sometime, the script can run fine during 6-7 hours without getting this error but sometime it happen after 15 min. I don't know exactly what to change to my script to correct this problem. Here's the basic of my script. There's alot of loops because it's a bot. It has to be able to run during an infinitive time.

NEW SCRIPT, scroll down

Edited December 19, 2006 by Dieuz

PaulIA · December 18, 2006

I know there's alot of topic about this subject on the forum but no one seem to help me so I made this one. I just made a new script and I'm getting this Stack Overflow error. Sometime, the script can run fine during 6-7 hours without getting this error but sometime it happen after 15 min. I don't know exactly what to change to my script to correct this problem. Should I remove some functions? Should I remove the CALL on the function Restart but change it for what? Should I remove CALLs at all? Here's the basic of my script. There's alot of loops because it's a bot. It has to be able to run during an infinitive time.
;Hotkeys
HotKeySet("{HOME}", "Terminate") ;
HotKeySet("{F2}", "Start") ; 
HotKeySet("{F4}", "Pause") ; 

;Variables

Global $Paused
$ColorAttack = Pixelgetcolor(837,464)
$ColorVictory = Pixelgetcolor(402,169)
$Color5wins = Pixelgetcolor(595,387)
$Trophyswon = 0
$ColorBug = Pixelgetcolor(840,467)
While 1
    sleep(100)
Wend

Func Start()

;Stuff here

Call ("Restart")
EndFunc

Func Restart()
    
;Stuff here

;5 WINS
If $Color5wins ="5911585" Then
    Call ("Winner")
EndIf

;stuff here

Call ("Restart")
EndFunc
Func Winner()

;stuff here

Call ("Restart")
EndFunc

Func Pause()

;stuff here
    
EndFunc

Func Terminate()
  Exit(0)
  EndFunc
oÝ÷ Ø-ëæ¬jëh×6Restart()

Dieuz · December 19, 2006

I tought I had corrected it but I still have this stack overflow problem.

While 1
    sleep(100)
Wend

Func Start()

;stuff here, this function only happen once

Restart()
EndFunc

Func Restart()

While 1
    

Sleep(1500) ***********************************


If    Then
; stuff here    

Do

;stuff here

Until 
    
;stuff here

Else
    
;stuff here

If  then    ; happen like 1 time out of 1000
Restart()
Else


Do    
;stuff here

Until 

;stuff here

EndIf
EndIf
Wend
EndFunc


Func Pause()
;stuff here
Endfunc
    
Func Terminate()
  Exit(0)
  EndFunc

*********************** = where im getting the stack overflow error

Maybe there's something wrong in my script but I cannot figure it out. I dont understand why there's recursion because there's no call at all ( except one that is almost never used). Also, I dont stack any variables.

Edited December 19, 2006 by Dieuz

PaulIA · December 19, 2006

I tought I had corrected it but I still have this stack overflow problem.

CODE

While 1
    sleep(100)
Wend

Func Start()

;stuff here, this function only happen once

Restart()
EndFunc

Func Restart()

While 1
    

Sleep(1500) ***********************************
If    Then
; stuff here    

Do

;stuff here

Until 
    
;stuff here

Else
    
;stuff here

If  then    ; happen like 1 time out of 1000
Restart()
Else
Do    
;stuff here

Until 

;stuff here

EndIf
EndIf
Wend
EndFunc
Func Pause()
;stuff here
Endfunc
    
Func Terminate()
  Exit(0)
  EndFunc

*********************** = is where im getting the stack overflow error

Maybe there's something wrong in my script but I cannot figure it out.

What part of "The problem is that Restart calls itself" did you not understand? Every time a function calls itself, it consumes part of the stack. That memory isn't returned to the system until the function exits. If you never exit the function by constantly looping within the function, you burn up the stack. Edited December 19, 2006 by PaulIA

Dieuz · December 19, 2006

I will try to avoid calling. If the function constantly loop with While/Do/For does it consume the stack?

If I do something like that, does it consume part of the stack?

Func Restart()

If blablablabla then
Test()
EndIf

EndFunc

Func Test()

Restart()

EndFunc

Edited December 19, 2006 by Dieuz

ChrisL · December 19, 2006

I will try to avoid calling. If the function constantly loop with While/Do/For does it consume the stack?

If I do something like that, does it consume part of the stack?
Func Restart()

If blablablabla then
Test()
EndIf

EndFunc

Func Test()

Restart()

EndFunc

That will do the same

Dieuz · December 19, 2006

That will do the same

What will consume stack? While/Do/For or the function I just wrote?

ChrisL · December 19, 2006

What will consume stack? While/Do/For or the function I just wrote?

Look at this example http://www.autoitscript.com/forum/index.ph...st&p=263863

This is the type of thing you will need to do.

Your functions must be able to exit and return, if they just keep calling each other then they never return and your script will bomb out

Dieuz · December 19, 2006

Thx for the link Chris!

So If I am not calling at all, I should not get any recursion error right?

mikehunt114 · December 19, 2006

It's been stated several times here, and several times in other topics that you have created. Take the advice that people are giving you and don't have Restart() call itself, ie. the following is recursive and will give you a stack overflow error:

Func Restart()
    ;blah blah
    Restart()
EndFunc

Learn to write loops to do what you desire, recursion is very rarely needed. Please stop multi-posting this all over the forums. Take a look at some of the examples/links people have posted.

Edit: typo

Edited December 19, 2006 by mikehunt114

ChrisL · December 19, 2006

Thx for the link Chris!
So If I am not calling at all, I should not get any recursion error right?

Here it is simplified, run it and you will see what it does

$start = 1
$Restart = 2
$pause = 3
$terminate = 4

$job = Start()

While 1
    
    Switch $job
        
    Case $start
        $job = Start()
    Case $Restart
        $job = Restart()
    Case $pause
        $job = Pause()
    Case $terminate
        $job = Terminate()
        
    EndSwitch
        
WEnd


Func Start()

;stuff here, this function only happen once
Msgbox (0,"","Start function",2)
Return $Restart

EndFunc

Func Restart()
    
$ans = Msgbox(4,"","Do you want to do some more?")
If $ans = 6 then 
    Return $start
Else
    Return $terminate
EndIf


EndFunc


Func Pause()
;stuff here
Endfunc
    
Func Terminate()
    Msgbox (0,"","OK Bye")
  Exit(0)
EndFunc

Richard Robertson · December 19, 2006

Why are you using functions so much? It would be easier, and less recursive, if you would just make a main loop and use proper conditionals, it will not throw stack overflows like that.

Dieuz · December 19, 2006

I'm using one main function, and 3 small one ( Start,Pause,Exit)

HotKeySet("{HOME}", "Terminate") ; Terminates the Script when HOME is pressed
HotKeySet("{ENTER}", "Start") ; Run the Script when ENTER is pressed
HotKeySet("{SPACE}", "Pause") ; Pause the Script when SPACE is pressed

Stack Overflow

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