comment on

I have the following snippet of code. I make a DBI connection and after which sleep does not 'sleep'. Attached is my code

use DBI;

while (1) { # never ending loop
      my ($sec,$min,$hour,$mday,$mon,$year) = localtime(time); $mon++;
+ $year+=1900;
      $now = sprintf("%02d/%02d/%04d %02d:%02d:%02d", 
                     $mon, $mday, $year, $hour, $min, $sec);
      print "Time before sleep $now\n";
      sleep 30;
      print "Time after sleep $now\n";

      $dbh  = ();# Initializing the dbi variables
      $dbh = DBI->connect("DBI:Oracle:DEMODB", 
                          "DEMO" , 
                          "DEMO", 
                          { PrintError => 0 } ) 
        or die "Unable to connect to DB $DB $!";
      $dbh->disconnect or die;
}
[download]

Attached is the output

Time before sleep 09/14/2007 13:21:08
Time after sleep 09/14/2007 13:21:08
Time before sleep 09/14/2007 13:21:38
Time after sleep 09/14/2007 13:21:38
Time before sleep 09/14/2007 13:21:38
Time after sleep 09/14/2007 13:21:38
Time before sleep 09/14/2007 13:21:38
Time after sleep 09/14/2007 13:21:38
Time before sleep 09/14/2007 13:21:38
Time after sleep 09/14/2007 13:21:38
Time before sleep 09/14/2007 13:21:39
Time after sleep 09/14/2007 13:21:39
Time before sleep 09/14/2007 13:21:39
Time after sleep 09/14/2007 13:21:39
Time before sleep 09/14/2007 13:21:39
Time after sleep 09/14/2007 13:21:39
Time before sleep 09/14/2007 13:21:39
Time after sleep 09/14/2007 13:21:39
Time before sleep 09/14/2007 13:21:39
Time after sleep 09/14/2007 13:21:39
[download]

So the first sleep works just fine but subsequent sleeps dont really sleep. Please help. Thanks I added an additional sleep clause after the first sleep and that seems to do the trick. So the first sleep fails the second one works. Blow is the new code -- Thanks ikegami

while (1) { # never ending loop
      my ($sec,$min,$hour,$mday,$mon,$year) = localtime(time); $mon++;
+ $year+=1900;
      $now = sprintf("%02d/%02d/%04d %02d:%02d:%02d", 
                     $mon, $mday, $year, $hour, $min, $sec);
      print "Time before 1st sleep $now\n";
      sleep 30;
      $now = sprintf("%02d/%02d/%04d %02d:%02d:%02d", 
                     $mon, $mday, $year, $hour, $min, $sec);

      print "Time after 1st sleep $now\n";

      $now = sprintf("%02d/%02d/%04d %02d:%02d:%02d", 
                     $mon, $mday, $year, $hour, $min, $sec);
      # new sleep added BELOW
      print "Time before 2nd sleep $now\n";
      sleep 30;
      $now = sprintf("%02d/%02d/%04d %02d:%02d:%02d", 
                     $mon, $mday, $year, $hour, $min, $sec);

      print "Time after 2nd sleep $now\n";

      $dbh  = ();# Initializing the dbi variables
      $dbh = DBI->connect("DBI:Oracle:DEMODB", 
                          "DEMO" , 
                          "DEMO", 
                          { PrintError => 0 } ) 
        or die "Unable to connect to DB $DB $!";
      $dbh->disconnect or die;
}
[download]

In reply to DBI messes up sleep by perljunky

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