qpsmtpd/lib/Danga/TimeoutSocket.pm

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Perl
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# $Id: TimeoutSocket.pm,v 1.2 2005/02/02 20:44:35 msergeant Exp $
package Danga::TimeoutSocket;
use base 'Danga::Socket';
use fields qw(alive_time create_time);
our $last_cleanup = 0;
sub new {
my Danga::TimeoutSocket $self = shift;
my $sock = shift;
$self = fields::new($self) unless ref($self);
$self->SUPER::new($sock);
my $now = time;
$self->{alive_time} = $self->{create_time} = $now;
if ($now - 15 > $last_cleanup) {
$last_cleanup = $now;
_do_cleanup($now);
}
return $self;
}
sub _do_cleanup {
my $now = shift;
my $sf = __PACKAGE__->get_sock_ref;
my %max_age; # classname -> max age (0 means forever)
my @to_close;
while (my $k = each %$sf) {
my Danga::TimeoutSocket $v = $sf->{$k};
my $ref = ref $v;
next unless $v->isa('Danga::TimeoutSocket');
unless (defined $max_age{$ref}) {
$max_age{$ref} = $ref->max_idle_time || 0;
}
next unless $max_age{$ref};
if ($v->{alive_time} < $now - $max_age{$ref}) {
push @to_close, $v;
}
}
$_->close("Timeout") foreach @to_close;
}
1;