GetTickCount() returns system time in milliseconds so it would be easy
enough to create something using the offset of a current GetTickCount with a
previous GetTickCount.

Alternately, there is a sleep UDF at http://www.cflib.org/udf.cfm?ID=959
which uses the java Sleep function.

Cheers.

Scott.

-----Original Message-----
From: Roland Collins [mailto:[EMAIL PROTECTED]
Sent: Wednesday, 14 January 2004 10:43 AM
To: [EMAIL PROTECTED]
Subject: [CFCDev] Threading question


Hey guys,

I'm writing a function that waits for a short time for a file to appear
before timing out.  The basic idea is

function WaitForFile(somefile, timeout)
        starttime = now()
        bFileExists = FileExists(somefile)

        loop while not bFileExists and (now - startime) < timeout
                Sleep(1000)
                bFileExists = FileExists(somefile)
        end loop

        return bFileExists
end function

Since CF doesn't have a Sleep function, I'm stuck with workarounds.  I can
do it either by accessing the java.lang.Thread classes (much thanks to
Christian's Blog at http://www.markme.com/cantrell/archives/002801.cfm), or
by writing a COM object that does effectively the same thing.  The question
is: does blocking the currently executing CF thread using the java Sleep()
method differ from blocking it using a synchronous COM method ?  In other
words, does anyone know of any internal CF quirks that would make it less
safe to use the java method vs the COM method?  Future-proofing is not a
concern at this point, though I'd wager support for the java base classes
isn't being removed from CF any time soon ;)

<CFSCRIPT>
        thrd = CreateObject("java", "java.lang.Thread");
        thrd.Sleep(javaCast("long", 10000));
</CFSCRIPT>

TIA,
RC Collins


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