| 1 | package transferqueue; |
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| 2 | |
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| 3 | my @reserve = ( |
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| 4 | [ 1_000_000, 1], |
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| 5 | [ 10_000_000, 1], |
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| 6 | ); |
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| 7 | |
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| 8 | sub new { |
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| 9 | my $class = shift; |
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| 10 | bless { |
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| 11 | slots => $_[0], |
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| 12 | lastspb => 0, |
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| 13 | avgspb => 0, |
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| 14 | }, $class; |
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| 15 | } |
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| 16 | |
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| 17 | sub start_transfer { |
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| 18 | my $self = shift; |
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| 19 | my $size = $_[0]; |
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| 20 | |
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| 21 | my $transfer = bless { |
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| 22 | queue => $self, |
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| 23 | time => $::NOW, |
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| 24 | size => $size, |
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| 25 | coro => $Coro::current, |
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| 26 | started => 0, |
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| 27 | }, transfer::; |
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| 28 | |
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| 29 | push @{$self->{wait}}, $transfer; |
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| 30 | |
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| 31 | $self->wake_next; |
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| 32 | |
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| 33 | $transfer; |
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| 34 | } |
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| 35 | |
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| 36 | sub sort { |
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| 37 | my @queue = grep $_, @{$_[0]{wait}}; |
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| 38 | |
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| 39 | $_->{spb} = ($::NOW-$_->{time}) / ($_->{size} || 1) for @queue; |
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| 40 | |
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| 41 | $_[0]{wait} = [sort { $b->{spb} <=> $a->{spb} } @queue]; |
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| 42 | |
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| 43 | Scalar::Util::weaken $_ for @{$_[0]{wait}}; |
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| 44 | } |
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| 45 | |
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| 46 | sub wake_next { |
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| 47 | my $self = shift; |
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| 48 | |
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| 49 | $self->sort; |
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| 50 | |
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| 51 | while (@{$self->{wait}}) { |
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| 52 | my $size = $self->{wait}[0]{size}; |
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| 53 | my $min = 0; |
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| 54 | for (@reserve) { |
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| 55 | last if $size <= $_->[0]; |
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| 56 | $min += $_->[1]; |
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| 57 | } |
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| 58 | last unless $self->{slots} > $min; |
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| 59 | my $transfer = shift @{$self->{wait}}; |
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| 60 | $self->{lastspb} = $transfer->{spb}; |
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| 61 | $self->{avgspb} ||= $transfer->{spb}; |
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| 62 | $self->{avgspb} = $self->{avgspb} * 0.95 + $transfer->{spb} * 0.05; |
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| 63 | $self->{started}++; |
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| 64 | $transfer->wake; |
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| 65 | last; |
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| 66 | } |
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| 67 | } |
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| 68 | |
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| 69 | sub waiters { |
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| 70 | $_[0]->sort; |
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| 71 | @{$_[0]{wait}}; |
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| 72 | } |
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| 73 | |
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| 74 | package transfer; |
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| 75 | |
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| 76 | use Coro::Timer (); |
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| 77 | |
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| 78 | sub wake { |
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| 79 | my $self = shift; |
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| 80 | |
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| 81 | $self->{alloc} = 1; |
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| 82 | $self->{queue}{slots}--; |
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| 83 | $self->{wake} and $self->{wake}->ready; |
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| 84 | } |
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| 85 | |
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| 86 | sub try { |
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| 87 | my $self = shift; |
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| 88 | |
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| 89 | $self->{alloc} || do { |
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| 90 | my $timeout = Coro::Timer::timeout $_[0]; |
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| 91 | local $self->{wake} = $self->{coro}; |
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| 92 | |
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| 93 | Coro::schedule; |
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| 94 | |
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| 95 | $self->{alloc}; |
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| 96 | } |
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| 97 | } |
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| 98 | |
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| 99 | sub DESTROY { |
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| 100 | my $self = shift; |
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| 101 | |
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| 102 | if ($self->{alloc}) { |
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| 103 | $self->{queue}{slots}++; |
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| 104 | $self->{queue}->wake_next; |
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| 105 | } |
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| 106 | } |
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| 107 | |
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| 108 | package conn; |
1 | package conn; |
| 109 | |
2 | |
| 110 | our %blockuri; |
3 | our %blockuri; |
| 111 | our $blockref; |
4 | our $blockref; |
| 112 | |
5 | |
