----Original Message-----
From: Chas. Owens [mailto:chas.ow...@gmail.com]
Sent: Friday, August 20, 2010 4:07 PM
To: Kammen van, Marco, Springer SBM NL
Cc: beginners@perl.org
Subject: Re: test contents of variable using alarm()
On Fri, Aug 20, 2010 at 04:34, Kammen van, Marco, Springer SBM NL
<marco.vankam...@springer.com> wrote:
> Hi All,
>
> I want to use timers to check if certain variables are set and if not
> send some data back to a client...
>
> Been searching for this a while now, but all I can find on alarm are
> examples on timing out commands....
snip
>>All the [alarm][0] function does is send the [ALRM][0] signal to the
>>current process after X seconds. It is often used to turn a blocking
>>function into a non-blocking function (i.e. a timeout), but any code
>>can be put into the signal handler. Here is some code that does
>>something different with it:
Hi Chas,
I'm looking for something like this, I'm not sure if alarm() is made for such
checks but I'm wondering how to do this...
Timer for 30 seconds
If ($data eq "something") {
Print "OK\n";
} else {
After 30 seconds
Print "No data received, try again later\n";
}
Marco!
