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Re: GOTO considered (a necessary) evil?

by sedhed (Scribe)
on Jul 16, 2002 at 19:20 UTC ( #182206=note: print w/replies, xml ) Need Help??

in reply to GOTO considered (a necessary) evil?

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' : $@"; }