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author | Stephen Hemminger <stephen.hemminger@vyatta.com> | 2008-11-20 12:16:02 -0800 |
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committer | Stephen Hemminger <stephen.hemminger@vyatta.com> | 2008-11-20 20:34:16 -0800 |
commit | 790663c88fb291ddb5b645bdde62d8229d5e115b (patch) | |
tree | bdf236cc76437e82df9254d3cb89ef1c271424bc /lib/Vyatta/Qos/FairQueue.pm | |
parent | 22fba825c57ed336bca64ff154bbd911bc6754d5 (diff) | |
download | vyatta-cfg-qos-790663c88fb291ddb5b645bdde62d8229d5e115b.tar.gz vyatta-cfg-qos-790663c88fb291ddb5b645bdde62d8229d5e115b.zip |
Change perl module names from VyattaQosXXX to Vyatta::Qos:XXX
Use more multi-level directory hierarchy instead of having all
modules at top level.
Diffstat (limited to 'lib/Vyatta/Qos/FairQueue.pm')
-rw-r--r-- | lib/Vyatta/Qos/FairQueue.pm | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/lib/Vyatta/Qos/FairQueue.pm b/lib/Vyatta/Qos/FairQueue.pm new file mode 100644 index 0000000..9897e29 --- /dev/null +++ b/lib/Vyatta/Qos/FairQueue.pm @@ -0,0 +1,68 @@ +# 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 Vyatta::Qos::FairQueue; + +use strict; +use warnings; + +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; |