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