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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 | conns => $_[0], |
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7 | }, $class; |
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8 | } |
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9 | |
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10 | sub start_transfer { |
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11 | my $self = shift; |
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12 | |
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13 | my $trans = bless [ $self ], transfer::; |
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14 | Scalar::Util::weaken($trans->[0]); |
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15 | |
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16 | push @{$self->{wait}}, $trans; |
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17 | Scalar::Util::weaken($self->{wait}[-1]); |
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18 | |
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19 | --$self->{conns}; |
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20 | $self->wake_next; |
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21 | |
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22 | $trans; |
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23 | } |
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24 | |
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25 | sub wake_next { |
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26 | my $self = shift; |
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27 | |
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28 | if ($self->{conns} >= 0) { |
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29 | while(@{$self->{wait}}) { |
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30 | my $transfer = shift @{$self->{wait}}; |
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31 | if ($transfer) { |
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32 | $transfer->wake; |
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33 | last; |
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34 | } |
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35 | } |
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36 | } |
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37 | } |
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38 | |
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39 | sub waiters { |
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40 | map $_->[1], @{$_[0]{wait}}; |
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41 | } |
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42 | |
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43 | package transfer; |
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44 | |
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45 | use Coro::Timer (); |
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46 | |
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47 | sub wake { |
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48 | my $self = shift; |
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49 | $self->[2] = 1; |
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50 | ref $self->[1] and $self->[1]->ready; |
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51 | } |
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52 | |
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53 | sub try { |
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54 | my $self = shift; |
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55 | |
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56 | unless ($self->[2]) { |
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57 | my $timeout = Coro::Timer::timeout $_[0]; |
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58 | $self->[1] = $Coro::current; |
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59 | |
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60 | Coro::schedule; |
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61 | |
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62 | undef $self->[1]; |
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63 | } |
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64 | |
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65 | return $self->[2]; |
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66 | } |
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67 | |
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68 | sub DESTROY { |
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69 | my $self = shift; |
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70 | $self->[0]{conns}++; |
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71 | $self->[0]->wake_next; |
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72 | } |
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73 | |
| 1 | package conn; |
74 | package conn; |
| 2 | |
75 | |
| 3 | our %blockuri; |
76 | our %blockuri; |
| 4 | our $blockref; |
77 | our $blockref; |
| 5 | |
78 | |
