1 | package tbf; |
1 | package tbf; |
2 | |
2 | |
3 | # kind of token-bucket-filter |
3 | # kind of token-bucket-filter |
4 | |
4 | |
5 | my $max_per_client = 24000; |
5 | my $max_per_client = $::TBF_MAX_PER_CLIENT || 24000; |
6 | |
6 | |
7 | sub new { |
7 | sub new { |
8 | my $class = shift; |
8 | my $class = shift; |
9 | my %arg = @_; |
9 | my %arg = @_; |
10 | my $self = bless \%arg, $class; |
10 | my $self = bless \%arg, $class; |
… | |
… | |
12 | $self->{maxbucket} ||= $self->{rate} * 3; # max 3s bucket |
12 | $self->{maxbucket} ||= $self->{rate} * 3; # max 3s bucket |
13 | $self->{minbucket} ||= $self->{rate}; # minimum bucket to share |
13 | $self->{minbucket} ||= $self->{rate}; # minimum bucket to share |
14 | $self->{interval} ||= $::BUFSIZE / $max_per_client; # good default interval |
14 | $self->{interval} ||= $::BUFSIZE / $max_per_client; # good default interval |
15 | |
15 | |
16 | if ($self->{rate}) { |
16 | if ($self->{rate}) { |
17 | $self->{w} = Event->timer(hard => 1, after => 0, interval => $self->{interval}, repeat => 1, cb => sub { |
17 | $self->{w} = EV::periodic 0, $self->{interval}, undef, sub { |
18 | $self->inject($self->{rate} * $self->{interval}); |
18 | $self->inject ($self->{rate} * $self->{interval}); |
19 | }); |
19 | }; |
20 | } else { |
20 | } else { |
21 | die "chaining not yet implemented\n"; |
21 | die "chaining not yet implemented\n"; |
22 | } |
22 | } |
23 | |
23 | |
24 | $self; |
24 | $self; |
25 | } |
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26 | |
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27 | sub DESTROY { |
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28 | my $self = shift; |
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29 | |
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30 | $self->{w}->cancel; |
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31 | } |
25 | } |
32 | |
26 | |
33 | sub inject { |
27 | sub inject { |
34 | my ($self, $bytes) = @_; |
28 | my ($self, $bytes) = @_; |
35 | |
29 | |