Re: GOTO considered (a necessary) evil?

[sedhed]

Without getting into the goto issue, may I offer the code I use for tieing a session using Apache::Session::*. It is not a loop at all, therefore no chance of an infinite loop. It makes two tries at a session, once using the supplied ID (if any), and if that fails it tries a second time using undef, to get a new session. Failing that, it dies.

# $id is either a cookie-passed session ID or undef
# $sargs is a hashref of options

eval { tie %session, 'Apache::Session::Postgres', $id, $sargs };

if ($@ =~ /^Object does not exist/) { # try to get a new session
    eval { tie %session, 'Apache::Session::Postgres', undef, $sargs };
    die "Can't get new session: $@" if $@;
} elsif ($@) {
    die "Can't get session. ID (if any): '$id' : $@";
}

cheers!