@Logonserver variable disappearing

[joshtbailey]

I'm writing a service using Services.au3 to automatically execute a command after the service starts. At the start of my script I have the following variable declared:

Global $args = @LogonServer & "\testdir\testfile"
WriteLog($args)

The $args variable is then used in the _Svc_Main() portion of the script later on:

WriteLog($args)
RunWait($program & ' /p "' & $args & '" /q ' & $additionalargs)

Upon inspecting the output of my Logfile the first WriteLog($args) shows the correct value:

\\server\testdir\testfile

However, the second output of the $args variable is incorrect and shows the following:

\testdir\testfile

The variable is only used twice in the script, code is shown above. Manually setting the variable without using @Logonserver works. I have tried double setting the variable $args2 = $args without success. Any insight, suggestions, or solutions would be greatly appreciated.

Thank you.

Edited October 7, 2011 by joshtbailey

[water]

Somewhere in your script you change the variable.

This could be by manually assigning a new value e.g. $args = "New Value".

Or by passing it as a paramter to a function where the parameter is referenced ByRef and then changed in the function.

The variable might be changed in one of your include files (though it's bad programming style)

$args = 1
ConsoleWrite($args & @LF)
_AFunction($args)
ConsoleWrite($args & @LF)
Exit
Func _AFunction(ByRef $param1)
$param1 = 2
EndFunc   ;==>_AFunction

Rename your variable to something unique e.g. $xyz and see if it still happens.

Edited October 8, 2011 by water

[joshtbailey]

Thank you for your response.

The code above is a representation of the actual code. My variable name is $keyfile1. I will need to trace all the functions but I highly doubt that the variable is used somewhere else. In addition, the variable $keyfile1 is not passed into a function but is referenced inside of the _Svc_Main() function, hence the use of Global. I have tried not using the variable but instead putting everything inside of the RunWait command but the results are the same. It seems that whenever I use the @LogonServer variable inside of the _Svc_Main() function, it will not resolve.

Edited October 9, 2011 by joshtbailey

[water]

I haven't used it myself but you could give the " a try. Step through the script and you'll see when and where the variable changes.

[joshtbailey]

Thank you for your help. I was unable to get the Graphical AutoIt Debugger to run without crashing, however, after several more attempts and trying different methods of variable setting, such as writing the variable to a file and reading the file, ( did not work ) I feel that the Service.au3 UDF does not allow or inhibits the use of these variables. I have taken a different approach and instead of using the @LogonServer variable I am programmatically specifying the domain controllers based on the workstations network address, in addition I am also setting a static backup file location if the domain controller is unavailable. Thank you "water" for all of your assistance and in pointing me in the right direction.