Do...Until OR 30 secs [How To?]

[Cambo]

I have a Do...Until loop that constantly reads a file for a certain line. Sometimes this doesn't show up, depending on certain circumstances. It looks like this:

Do
Sleep(100)
$Check = FileRead("log")
Until StringInStr($Check, "RandomString")

but sometimes RandomString, doesn't show up. I want it to run this loop until that shows up OR until a set time (like 30 secs) has gone by. I know after 30 secs it is safe to go on, even if RandomString hasn't shown up. I'm not quite sure how to do this. I could put a counter in it, and have it up date the variable and when the variable reaches 300 (30 secs with a Sleep(100)) have an OR $var = 300 at in the Until line, but that seems like a lot of work for something that simple. Any other ideas?

Any help would be greatly appreciated!!

Edited December 7, 2007 by Cambo

[Generator]

$Timer=TimerInit()
Do
Sleep(100)
$Check = FileRead("log")
Until StringInStr($Check, "RandomString") Or TimerDiff($Timer)>(1000*30)

Edited December 7, 2007 by Generator

[Cambo]

Thanks so much! Will try it asap.