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