Reading the latest source, it appears that in certain circumstances, Sys::Syslog::connection_ok() might return what you want.

Otherwise, there is a $connected variable in the package. If that means what I think it does, a patch to add a subroutine that allows one to read its contents would probably be a nice addition. I'm sure Sébastien Aperghis-Tramoni would consider it for inclusion in a future release; he's been taking good care of the module recently.

An alternative would be to add your own scaffolding:

BEGIN {
  my $is_open = 0;
  sub check_openlog {
    if (not $is_open) {
      openlog(...) and ++$is_open;
    }
  }
  sub is_open {
    return $is_open;
  }
}

[download]

Then you can call check_openlog() anywhere in the code path, and your wrapper will do the right thing: only the first call that calls openlog() and succeeds will have any effect. All other calls will have no effect. (Reminds me of a certain biological process, come to think of it).

• another intruder with the mooring in the heart of the Perl

In reply to Re: Is syslog already open? by grinder
in thread Is syslog already open? by pileofrogs

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