| 1 | package transferqueue; |
1 | package transferqueue; |
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2 | |
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3 | my @reserve = ( |
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4 | [ 1_200_000, 1], |
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5 | [ 3_000_000, 1], |
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6 | [ 75_000_000, 1], |
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7 | ); |
| 2 | |
8 | |
| 3 | sub new { |
9 | sub new { |
| 4 | my $class = shift; |
10 | my $class = shift; |
| 5 | bless { |
11 | bless { |
| 6 | conns => $_[0], |
12 | slots => $_[0], |
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13 | lastspb => 0, |
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14 | avgspb => 0, |
| 7 | }, $class; |
15 | }, $class; |
| 8 | } |
16 | } |
| 9 | |
17 | |
| 10 | sub start_transfer { |
18 | sub start_transfer { |
| 11 | my $self = shift; |
19 | my $self = shift; |
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20 | my $size = $_[0]; |
| 12 | |
21 | |
| 13 | my $trans = bless [ $self ], transfer::; |
22 | my $transfer = bless { |
| 14 | Scalar::Util::weaken($trans->[0]); |
23 | queue => $self, |
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24 | time => $::NOW, |
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25 | size => $size, |
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26 | coro => $Coro::current, |
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27 | started => 0, |
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28 | }, transfer::; |
| 15 | |
29 | |
| 16 | push @{$self->{wait}}, $trans; |
30 | push @{$self->{wait}}, $transfer; |
| 17 | Scalar::Util::weaken($self->{wait}[-1]); |
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| 18 | |
31 | |
| 19 | --$self->{conns}; |
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| 20 | $self->wake_next; |
32 | $self->wake_next; |
| 21 | |
33 | |
| 22 | $trans; |
34 | $transfer; |
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35 | } |
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36 | |
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37 | sub sort { |
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38 | my @queue = grep $_, @{$_[0]{wait}}; |
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39 | |
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40 | $_->{spb} = ($::NOW-$_->{time}) / ($_->{size} || 1) for @queue; |
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41 | |
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42 | $_[0]{wait} = [sort { $b->{spb} <=> $a->{spb} } @queue]; |
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43 | |
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44 | Scalar::Util::weaken $_ for @{$_[0]{wait}}; |
| 23 | } |
45 | } |
| 24 | |
46 | |
| 25 | sub wake_next { |
47 | sub wake_next { |
| 26 | my $self = shift; |
48 | my $self = shift; |
| 27 | |
49 | |
| 28 | if ($self->{conns} >= 0) { |
50 | $self->sort; |
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51 | |
| 29 | while(@{$self->{wait}}) { |
52 | while (@{$self->{wait}}) { |
| 30 | my $transfer = shift @{$self->{wait}}; |
53 | my $size = $self->{wait}[0]{size}; |
| 31 | if ($transfer) { |
54 | my $min = 0; |
| 32 | $transfer->wake; |
55 | for (@reserve) { |
| 33 | last; |
56 | last if $size <= $_->[0]; |
| 34 | } |
57 | $min += $_->[1]; |
| 35 | } |
58 | } |
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59 | last unless $self->{slots} > $min; |
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60 | my $transfer = shift @{$self->{wait}}; |
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61 | $self->{lastspb} = $transfer->{spb}; |
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62 | $self->{avgspb} ||= $transfer->{spb}; |
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63 | $self->{avgspb} = $self->{avgspb} * 0.95 + $transfer->{spb} * 0.05; |
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64 | $self->{started}++; |
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65 | $transfer->wake; |
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66 | last; |
| 36 | } |
67 | } |
| 37 | } |
68 | } |
| 38 | |
69 | |
| 39 | sub waiters { |
70 | sub waiters { |
| 40 | map $_->[1], @{$_[0]{wait}}; |
71 | $_[0]->sort; |
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72 | @{$_[0]{wait}}; |
| 41 | } |
73 | } |
| 42 | |
74 | |
| 43 | package transfer; |
75 | package transfer; |
| 44 | |
76 | |
| 45 | use Coro::Timer (); |
77 | use Coro::Timer (); |
| 46 | |
78 | |
| 47 | sub wake { |
79 | sub wake { |
| 48 | my $self = shift; |
80 | my $self = shift; |
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81 | |
| 49 | $self->[2] = 1; |
82 | $self->{alloc} = 1; |
| 50 | ref $self->[1] and $self->[1]->ready; |
83 | $self->{queue}{slots}--; |
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84 | $self->{wake} and $self->{wake}->ready; |
| 51 | } |
85 | } |
| 52 | |
86 | |
| 53 | sub try { |
87 | sub try { |
| 54 | my $self = shift; |
88 | my $self = shift; |
| 55 | |
89 | |
| 56 | unless ($self->[2]) { |
90 | $self->{alloc} || do { |
| 57 | my $timeout = Coro::Timer::timeout $_[0]; |
91 | my $timeout = Coro::Timer::timeout $_[0]; |
| 58 | $self->[1] = $Coro::current; |
92 | local $self->{wake} = $self->{coro}; |
| 59 | |
93 | |
| 60 | Coro::schedule; |
94 | Coro::schedule; |
| 61 | |
95 | |
| 62 | undef $self->[1]; |
96 | $self->{alloc}; |
| 63 | } |
97 | } |
| 64 | |
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| 65 | return $self->[2]; |
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| 66 | } |
98 | } |
| 67 | |
99 | |
| 68 | sub DESTROY { |
100 | sub DESTROY { |
| 69 | my $self = shift; |
101 | my $self = shift; |
| 70 | $self->[0]{conns}++; |
102 | |
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103 | if ($self->{alloc}) { |
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104 | $self->{queue}{slots}++; |
| 71 | $self->[0]->wake_next; |
105 | $self->{queue}->wake_next; |
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106 | } |
| 72 | } |
107 | } |
| 73 | |
108 | |
| 74 | package conn; |
109 | package conn; |
| 75 | |
110 | |
| 76 | our %blockuri; |
111 | our %blockuri; |
