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# You may distribute under the terms of either the GNU General Public License |
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# or the Artistic License (the same terms as Perl itself) |
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# |
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# (C) Paul Evans, 2012-2020 -- leonerd@leonerd.org.uk |
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package IO::Async::Loop::EV; |
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267116
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use strict; |
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use warnings; |
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656
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our $VERSION = '0.03'; |
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use constant API_VERSION => '0.76'; |
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1182
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use base qw( IO::Async::Loop ); |
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11484
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IO::Async::Loop->VERSION( '0.49' ); |
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307363
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use Scalar::Util qw( weaken ); |
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856
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use IO::Async::Metrics '$METRICS'; |
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use constant _CAN_SUBSECOND_ACCURATELY => 0; |
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use Carp; |
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767
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6743
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use EV; |
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25018
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14152
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=head1 NAME |
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C - use C with C |
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=head1 SYNOPSIS |
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33
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use IO::Async::Loop::EV; |
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35
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my $loop = IO::Async::Loop::EV->new(); |
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37
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$loop->add( ... ); |
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39
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$loop->add( IO::Async::Signal->new( |
40
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name => 'HUP', |
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on_receipt => sub { ... }, |
42
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) ); |
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44
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$loop->run; |
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=head1 DESCRIPTION |
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This subclass of L uses L to perform its work. |
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=cut |
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52
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sub new |
53
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{ |
54
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1
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427
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my $class = shift; |
55
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16
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118
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my $self = $class->SUPER::__new( @_ ); |
56
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57
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16
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769
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$self->{$_} = {} for qw( watch_r watch_w watch_time watch_signal watch_idle watch_process ); |
58
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59
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# Check it's actually active |
60
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16
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100
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33
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119
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if( defined $METRICS and $METRICS->adapter and $METRICS ) { |
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66
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61
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12
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2970
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weaken( my $weakself = $self ); |
62
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12
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77
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81
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$self->{watch_prepare} = EV::prepare sub { $weakself->pre_wait }; |
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77
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525
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63
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12
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77
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59
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$self->{watch_check} = EV::check sub { $weakself->post_wait }; |
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77
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19286307
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64
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} |
65
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66
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16
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3410
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return $self; |
67
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} |
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69
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sub loop_once |
70
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{ |
71
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84
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84
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1
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29111
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my $self = shift; |
72
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84
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194
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my ( $timeout ) = @_; |
73
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74
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84
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126
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my $timeout_w; |
75
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84
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100
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313
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if( defined $timeout ) { |
76
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71
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13
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608
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$timeout_w = EV::timer $timeout, 0, sub {}; # simply to wake up RUN_ONCE |
77
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} |
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79
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84
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856744
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EV::run( EV::RUN_ONCE ); |
80
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} |
81
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82
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sub watch_io |
83
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{ |
84
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10
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10
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1
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19848
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my $self = shift; |
85
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10
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35
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my %params = @_; |
86
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87
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10
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50
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55
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my $handle = $params{handle} or die "Need a handle"; |
88
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89
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10
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100
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28
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if( my $on_read_ready = $params{on_read_ready} ) { |
90
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7
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50
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$self->{watch_r}{$handle} = EV::io( $handle, EV::READ, $on_read_ready ); |
91
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} |
92
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93
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10
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100
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32
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if( my $on_write_ready = $params{on_write_ready} ) { |
94
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5
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29
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$self->{watch_w}{$handle} = EV::io( $handle, EV::WRITE, $on_write_ready ); |
95
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} |
96
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} |
97
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98
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sub unwatch_io |
99
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{ |
100
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9
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9
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1
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4923
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my $self = shift; |
101
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9
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32
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my %params = @_; |
102
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103
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9
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50
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25
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my $handle = $params{handle} or die "Need a handle"; |
104
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105
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9
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100
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21
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if( $params{on_read_ready} ) { |
106
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6
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46
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delete $self->{watch_r}{$handle}; |
107
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} |
108
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109
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9
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100
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86
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if( $params{on_write_ready} ) { |
110
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5
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60
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delete $self->{watch_w}{$handle}; |
111
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} |
112
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} |
113
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114
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sub watch_time |
115
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{ |
116
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31
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31
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1
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36993
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my $self = shift; |
117
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31
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298
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my %params = @_; |
118
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119
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31
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50
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208
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my $code = $params{code} or croak "Expected 'code' as CODE ref"; |
120
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121
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31
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75
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my $w; |
122
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31
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100
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116
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if( defined $params{after} ) { |
123
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30
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287
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$w = EV::timer $params{after}, 0, $code; |
124
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} |
125
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else { |
126
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1
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7
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$w = EV::periodic $params{at}, 0, 0, $code; |
127
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} |
128
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129
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31
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266
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return $self->{watch_time}{$w} = $w; |
130
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} |
131
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132
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sub unwatch_time |
133
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{ |
134
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19
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19
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1
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842
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my $self = shift; |
135
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19
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47
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my ( $id ) = @_; |
136
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137
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19
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167
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delete $self->{watch_time}{$id}; |
138
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} |
139
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140
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sub watch_signal |
141
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{ |
142
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5
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5
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1
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3005
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my $self = shift; |
143
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5
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11
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my ( $signal, $code ) = @_; |
144
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145
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5
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100
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45
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defined $self->signame2num( $signal ) or croak "No such signal '$signal'"; |
146
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147
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4
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545
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$self->{watch_signal}{$signal} = EV::signal $signal, $code; |
148
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} |
149
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150
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sub unwatch_signal |
151
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{ |
152
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2
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2
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1
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2392
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my $self = shift; |
153
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2
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17
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my ( $signal ) = @_; |
154
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155
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2
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92
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delete $self->{watch_signal}{$signal}; |
156
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} |
157
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158
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sub watch_idle |
159
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{ |
160
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6
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6
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1
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8795
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my $self = shift; |
161
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6
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19
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my %params = @_; |
162
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163
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6
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50
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58
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my $when = delete $params{when} or croak "Expected 'when'"; |
164
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165
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6
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50
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15
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my $code = delete $params{code} or croak "Expected 'code' as a CODE ref"; |
166
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167
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6
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50
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13
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$when eq "later" or croak "Expected 'when' to be 'later'"; |
168
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169
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6
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9
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my $key; |
170
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my $w = EV::idle sub { |
171
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5
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5
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63
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delete $self->{watch_idle}{$key}; |
172
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5
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15
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goto &$code; |
173
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6
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30
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}; |
174
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175
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6
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18
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$key = "$w"; |
176
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6
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14
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$self->{watch_idle}{$key} = $w; |
177
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6
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23
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return $key; |
178
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} |
179
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180
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sub unwatch_idle |
181
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{ |
182
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1
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1
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1
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4
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my $self = shift; |
183
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1
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2
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my ( $id ) = @_; |
184
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185
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1
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7
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delete $self->{watch_idle}{$id}; |
186
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} |
187
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188
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sub watch_process |
189
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{ |
190
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17
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17
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1
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41276
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my $self = shift; |
191
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17
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159
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my ( $pid, $code ) = @_; |
192
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193
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$self->{watch_process}{$pid} = EV::child $pid, 0, sub { |
194
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19
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19
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2011
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my $w = shift; |
195
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19
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127
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$code->( $w->rpid, $w->rstatus ); |
196
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17
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1100
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}; |
197
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} |
198
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199
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sub unwatch_process |
200
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{ |
201
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1
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1
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1
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270
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my $self = shift; |
202
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1
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3
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my ( $pid ) = @_; |
203
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204
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1
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8
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delete $self->{watch_process}{$pid}; |
205
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} |
206
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207
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=head1 AUTHOR |
208
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209
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Paul Evans |
210
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|
|
211
|
|
|
|
|
|
|
=cut |
212
|
|
|
|
|
|
|
|
213
|
|
|
|
|
|
|
0x55AA; |