I have noticed a few times that doing a check for time in a while loop and waiting for the time to exceed a predetermined amount of seconds to pass before performing a certain task that sometimes the task is never performed because the conditional statement is never satisfied.

For example: 

my $thread = threads->create("detached_thread");
$_->join for threads->list;

sub detached_thread {
   my $endtime = (time+1800);
   while (1) {
      if (time >= $endtime) {
         print "30 minutes have passed!\n";
         exit(0);
      }
   }
}

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In this example I use a while (1) loop but in the real app the while (1) is a while (my $data = <$sock>).

Has anyone else ran across this issue? If so what is the deal with it?

In reply to Issue with time() in loop? by Elijah

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