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-rw-r--r--scripts/VyattaQosFairQueue.pm66
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diff --git a/scripts/VyattaQosFairQueue.pm b/scripts/VyattaQosFairQueue.pm
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-# This is a wrapper around Stochastic Fair Queue(SFQ) queue discipline
-# Since SFQ is a hard to explain, use the name fair-queue since SFQ
-# is most similar to Weighted Fair Queue (WFQ) on Cisco IOS.
-#
-#
-# **** License ****
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License version 2 as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# This code was originally developed by Vyatta, Inc.
-# Portions created by Vyatta are Copyright (C) 2008 Vyatta, Inc.
-# All Rights Reserved.
-# **** End License ****
-
-package VyattaQosFairQueue;
-
-use strict;
-
-require VyattaConfig;
-
-# Fair Queue
-# Uses SFQ which is similar to (but not same as) WFQ
-
-my %fields = (
- _perturb => undef,
- _limit => undef,
-);
-
-sub new {
- my ( $that, $config ) = @_;
- my $class = ref($that) || $that;
- my $self = {%fields};
-
- $self->{_perturb} = $config->returnValue('hash-interval');
- $self->{_limit} = $config->returnValue('queue-limit');
- return bless $self, $class;
-}
-
-sub commands {
- my ( $self, $out, $dev ) = @_;
-
- print {$out} "qdisc add dev $dev root sfq";
- print {$out} " perturb $self->{_perturb}" if ( defined $self->{_perturb} );
- print {$out} " limit $self->{_limit}" if ( defined $self->{_limit} );
- print "\n";
-}
-
-sub isChanged {
- my ( $self, $name ) = @_;
- my $config = new VyattaConfig;
-
- $config->setLevel("qos-policy fair-queue $name");
- foreach my $attr ('hash-interval', 'queue-limit') {
- if ($config->isChanged($attr)) {
- return $attr
- }
- }
- return undef; # false
-}
-1;