First, you don't show the code that "checks the website". Maybe something like this will work? 

use HTTP::Request::Common qw(GET);
my $url_target = "some_url_to_check";   # like: http//x.y.z.com

while  (my $url = GET $url_target)
{
   # $url contains some text here that you process...
   # this means that the GET function succeeded.
   # the GET is a "blocking" dunction and waits until it gets a
   # "yes" or "no" answer;
   
   sleep(60);  #We don't know how long the last "get" took
               #but we are going to wait 60 secs before we
               #try it again...
}
else
{
   die "Opps there is a problem";
   # this will happen maybe about 1/1000 attempts
}
;

I would recommend some sort of control on the number of
trips through the "else" clause to prevent program
infinite loops.

#perhaps like this:

use constant MAX_RETRY => 5;
my $retries =0;
while  ( my $url = GET $url_target)
{
   #do something here..as above....
   $retries =0; 
   sleep(60); 
} 
else
{
   $retries++;
   if ($reties > MAX_RETRY)
   {
      die "maximum tries exceeded";
   }
   next;  #try again...
}
;

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In reply to Re: Help to infinite loop by Marshall
in thread Help to infinite loop by Mik0r

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