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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, 2010-2012 -- leonerd@leonerd.org.uk |
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package IO::Async::Loop::POE; |
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837333
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use strict; |
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497
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use warnings; |
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754
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our $VERSION = '0.05'; |
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use constant API_VERSION => '0.49'; |
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use base qw( IO::Async::Loop ); |
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IO::Async::Loop->VERSION( '0.49' ); |
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use Carp; |
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use POE::Kernel 1.293; |
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843803
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use POE::Session; |
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# Placate POE warning that we didn't call this |
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# It won't do anything yet as we have no sessions |
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POE::Kernel->run(); |
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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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32
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use IO::Async::Loop::POE; |
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34
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my $loop = IO::Async::Loop::POE->new(); |
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$loop->add( ... ); |
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38
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$loop->add( IO::Async::Signal->new( |
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name => 'HUP', |
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on_receipt => sub { ... }, |
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) ); |
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43
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$loop->loop_forever(); |
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45
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=head1 DESCRIPTION |
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47
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This subclass of L uses L to perform its work. |
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49
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The entire C system is represented by a single long-lived session |
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within the C core. It fully supports sharing the process space with |
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C; such resources as signals are properly shared between both event |
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systems. |
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=head1 CONSTRUCTOR |
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56
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=cut |
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58
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=head2 $loop = IO::Async::Loop::POE->new( %args ) |
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60
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This function returns a new instance of a C object. |
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It takes the following named arguments: |
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63
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=over 8 |
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65
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=back |
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67
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=cut |
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69
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sub new |
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{ |
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1
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196
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my $class = shift; |
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34
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my ( %args ) = @_; |
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74
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14
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161
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my $self = $class->SUPER::__new( %args ); |
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76
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14
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784
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my $kernelref = \($self->{kernel} = undef); |
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78
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$self->{session} = POE::Session->create( |
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inline_states => { |
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_start => sub { |
81
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14
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14
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11849
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$_[KERNEL]->alias_set( "IO::Async" ); |
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14
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573
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$$kernelref = $_[KERNEL]; |
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}, |
84
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85
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invoke => sub { |
86
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# CODEref is always in the last position, but what that is varies |
87
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# given the different events use different initial args |
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55
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55
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17800350
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$_[-1]->(); |
89
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}, |
90
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91
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select_read => sub { |
92
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7
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7
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509
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$_[KERNEL]->select_read( $_[ARG0], invoke => $_[ARG1] ); |
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}, |
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unselect_read => sub { |
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6
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6
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339
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$_[KERNEL]->select_read( $_[ARG0] ); |
96
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}, |
97
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select_write => sub { |
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3
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3
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145
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$_[KERNEL]->select_write( $_[ARG0], invoke => $_[ARG1] ); |
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}, |
100
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unselect_write => sub { |
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3
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3
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113
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$_[KERNEL]->select_write( $_[ARG0] ); |
102
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}, |
103
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104
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alarm_set => sub { |
105
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1
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1
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$_[KERNEL]->alarm_set( invoke => $_[ARG0], $_[ARG1] ); |
106
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}, |
107
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delay_set => sub { |
108
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126
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126
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6939
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$_[KERNEL]->delay_set( invoke => $_[ARG0], $_[ARG1] ); |
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}, |
110
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alarm_remove => sub { |
111
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127
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127
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8245
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$_[KERNEL]->alarm_remove( $_[ARG0] ); |
112
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}, |
113
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114
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sig => sub { |
115
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7
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100
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7
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401
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$_[KERNEL]->sig( $_[ARG0], ( $_[ARG0] eq "CHLD" ) ? "invoke_child" : "invoke_signal", $_[ARG1] ); |
116
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}, |
117
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unsig => sub { |
118
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2
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2
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78
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$_[KERNEL]->sig( $_[ARG0] ); |
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}, |
120
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invoke_signal => sub { |
121
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5
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5
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1722
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$_[-1]->(); |
122
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5
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53
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$_[KERNEL]->sig_handled; |
123
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}, |
124
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125
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sig_child => sub { |
126
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9
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9
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1954
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$_[KERNEL]->sig_child( $_[ARG0], invoke_child => $_[ARG1] ); |
127
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}, |
128
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unsig_child => sub { |
129
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1
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1
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48
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$_[KERNEL]->sig_child( $_[ARG0] ); |
130
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}, |
131
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invoke_child => sub { |
132
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12
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12
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1408
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$_[-1]->( $_[ARG1], $_[ARG2] ); # $pid, $dollarq |
133
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}, |
134
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} |
135
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14
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514
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); |
136
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137
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14
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1841
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return $self; |
138
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} |
139
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140
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sub _call |
141
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{ |
142
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292
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292
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513
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my $self = shift; |
143
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292
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1497
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$self->{kernel}->call( $self->{session}, @_ ); |
144
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} |
145
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146
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sub loop_once |
147
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{ |
148
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112
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112
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1
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26474
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my $self = shift; |
149
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112
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237
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my ( $timeout ) = @_; |
150
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151
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112
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100
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100
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1183
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if( defined $timeout and $timeout == 0 ) { |
152
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1
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7
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$self->{kernel}->run_one_timeslice; |
153
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1
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140
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return; |
154
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} |
155
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156
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111
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213
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my $timer_id; |
157
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111
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100
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367
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if( defined $timeout ) { |
158
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94
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27
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689
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$timer_id = $self->_call( delay_set => $timeout, sub { } ); |
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27
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133
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159
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} |
160
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161
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111
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9110
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$self->{kernel}->run_one_timeslice; |
162
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163
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111
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3383193
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$self->_call( alarm_remove => $timer_id ); |
164
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} |
165
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166
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sub watch_io |
167
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{ |
168
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8
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8
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1
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251733
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my $self = shift; |
169
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8
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34
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my %params = @_; |
170
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171
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8
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50
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33
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my $handle = $params{handle} or die "Need a handle"; |
172
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173
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8
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100
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28
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if( my $on_read_ready = $params{on_read_ready} ) { |
174
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7
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30
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$self->_call( select_read => $handle, $on_read_ready ); |
175
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} |
176
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177
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8
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100
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858
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if( my $on_write_ready = $params{on_write_ready} ) { |
178
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3
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8
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$self->_call( select_write => $handle, $on_write_ready ); |
179
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} |
180
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} |
181
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182
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sub unwatch_io |
183
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{ |
184
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7
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7
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1
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5617
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my $self = shift; |
185
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7
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49
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my %params = @_; |
186
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187
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7
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50
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29
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my $handle = $params{handle} or die "Need a handle"; |
188
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189
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7
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100
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23
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if( my $on_read_ready = $params{on_read_ready} ) { |
190
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6
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17
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$self->_call( unselect_read => $handle ); |
191
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} |
192
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193
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7
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100
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811
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if( my $on_write_ready = $params{on_write_ready} ) { |
194
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3
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9
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$self->_call( unselect_write => $handle ); |
195
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} |
196
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} |
197
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198
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sub watch_time |
199
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{ |
200
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27
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27
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1
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34692
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my $self = shift; |
201
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27
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274
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my %params = @_; |
202
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203
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27
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50
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174
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my $code = $params{code} or croak "Expected 'code' as CODE ref"; |
204
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205
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27
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100
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206
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if( defined $params{at} ) { |
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50
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206
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1
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5
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return $self->_call( alarm_set => $params{at}, $code ); |
207
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} |
208
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elsif( defined $params{after} ) { |
209
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26
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148
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return $self->_call( delay_set => $params{after}, $code ); |
210
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} |
211
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else { |
212
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0
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0
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croak "Expected either 'at' or 'after'"; |
213
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} |
214
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} |
215
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216
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|
|
|
|
|
|
sub unwatch_time |
217
|
|
|
|
|
|
|
{ |
218
|
15
|
|
|
15
|
1
|
1941
|
my $self = shift; |
219
|
15
|
|
|
|
|
22
|
my ( $id ) = @_; |
220
|
|
|
|
|
|
|
|
221
|
15
|
|
|
|
|
337
|
$self->_call( alarm_remove => $id ); |
222
|
|
|
|
|
|
|
} |
223
|
|
|
|
|
|
|
|
224
|
|
|
|
|
|
|
sub watch_signal |
225
|
|
|
|
|
|
|
{ |
226
|
4
|
|
|
4
|
1
|
2824
|
my $self = shift; |
227
|
4
|
|
|
|
|
7
|
my ( $signal, $code ) = @_; |
228
|
|
|
|
|
|
|
|
229
|
4
|
100
|
|
|
|
198
|
exists $SIG{$signal} or croak "Cannot watch signal '$signal' - bad signal name"; |
230
|
|
|
|
|
|
|
|
231
|
3
|
|
|
|
|
10
|
$self->_call( sig => $signal, $code ); |
232
|
|
|
|
|
|
|
} |
233
|
|
|
|
|
|
|
|
234
|
|
|
|
|
|
|
sub unwatch_signal |
235
|
|
|
|
|
|
|
{ |
236
|
2
|
|
|
2
|
1
|
1737
|
my $self = shift; |
237
|
2
|
|
|
|
|
3
|
my ( $signal ) = @_; |
238
|
|
|
|
|
|
|
|
239
|
2
|
|
|
|
|
5
|
$self->_call( unsig => $signal ); |
240
|
|
|
|
|
|
|
} |
241
|
|
|
|
|
|
|
|
242
|
|
|
|
|
|
|
sub watch_idle |
243
|
|
|
|
|
|
|
{ |
244
|
6
|
|
|
6
|
1
|
5455
|
my $self = shift; |
245
|
6
|
|
|
|
|
24
|
my %params = @_; |
246
|
|
|
|
|
|
|
|
247
|
6
|
50
|
|
|
|
20
|
my $when = delete $params{when} or croak "Expected 'when'"; |
248
|
|
|
|
|
|
|
|
249
|
6
|
50
|
|
|
|
20
|
my $code = delete $params{code} or croak "Expected 'code' as a CODE ref"; |
250
|
|
|
|
|
|
|
|
251
|
6
|
50
|
|
|
|
17
|
$when eq "later" or croak "Expected 'when' to be 'later'"; |
252
|
|
|
|
|
|
|
|
253
|
6
|
|
|
|
|
17
|
return $self->_call( delay_set => 0, $code ); |
254
|
|
|
|
|
|
|
} |
255
|
|
|
|
|
|
|
|
256
|
|
|
|
|
|
|
sub unwatch_idle |
257
|
|
|
|
|
|
|
{ |
258
|
1
|
|
|
1
|
1
|
86
|
my $self = shift; |
259
|
1
|
|
|
|
|
2
|
my ( $id ) = @_; |
260
|
|
|
|
|
|
|
|
261
|
1
|
|
|
|
|
3
|
$self->_call( alarm_remove => $id ); |
262
|
|
|
|
|
|
|
} |
263
|
|
|
|
|
|
|
|
264
|
|
|
|
|
|
|
sub watch_child |
265
|
|
|
|
|
|
|
{ |
266
|
13
|
|
|
13
|
1
|
31977
|
my $self = shift; |
267
|
13
|
|
|
|
|
114
|
my ( $pid, $code ) = @_; |
268
|
|
|
|
|
|
|
|
269
|
13
|
100
|
|
|
|
164
|
if( $pid ) { |
270
|
9
|
|
|
|
|
270
|
$self->_call( sig_child => $pid, $code ); |
271
|
|
|
|
|
|
|
} |
272
|
|
|
|
|
|
|
else { |
273
|
4
|
|
|
|
|
24
|
$self->_call( sig => "CHLD", $code ); |
274
|
|
|
|
|
|
|
} |
275
|
|
|
|
|
|
|
} |
276
|
|
|
|
|
|
|
|
277
|
|
|
|
|
|
|
sub unwatch_child |
278
|
|
|
|
|
|
|
{ |
279
|
1
|
|
|
1
|
1
|
144
|
my $self = shift; |
280
|
1
|
|
|
|
|
2
|
my ( $pid ) = @_; |
281
|
|
|
|
|
|
|
|
282
|
1
|
50
|
|
|
|
6
|
if( $pid ) { |
283
|
1
|
|
|
|
|
3
|
$self->_call( unsig_child => $pid ); |
284
|
|
|
|
|
|
|
} |
285
|
|
|
|
|
|
|
else { |
286
|
0
|
|
|
|
|
|
$self->_call( unsig => "CHLD" ); |
287
|
|
|
|
|
|
|
} |
288
|
|
|
|
|
|
|
} |
289
|
|
|
|
|
|
|
|
290
|
|
|
|
|
|
|
=head1 AUTHOR |
291
|
|
|
|
|
|
|
|
292
|
|
|
|
|
|
|
Paul Evans |
293
|
|
|
|
|
|
|
|
294
|
|
|
|
|
|
|
=cut |
295
|
|
|
|
|
|
|
|
296
|
|
|
|
|
|
|
0x55AA; |