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18 | use AnyEvent::Util (); |
18 | use AnyEvent::Util (); |
19 | use AnyEvent::Socket (); |
19 | use AnyEvent::Socket (); |
20 | |
20 | |
21 | use AnyEvent::MP::Transport (); |
21 | use AnyEvent::MP::Transport (); |
22 | |
22 | |
23 | use base Exporter::; |
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24 | |
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25 | sub new { |
23 | sub new { |
26 | my ($class, $noderef) = @_; |
24 | my ($self, $noderef) = @_; |
27 | |
25 | |
28 | bless { noderef => $noderef }, $class |
26 | $self = bless { noderef => $noderef }, $self; |
29 | } |
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30 | |
27 | |
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28 | $self->transport_reset; |
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29 | |
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30 | $self |
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31 | } |
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32 | |
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33 | sub send { |
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34 | &{ shift->{send} } |
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35 | } |
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36 | |
31 | package AnyEvent::MP::Node::Direct; |
37 | package AnyEvent::MP::Node::External; |
32 | |
38 | |
33 | use base "AnyEvent::MP::Node"; |
39 | use base "AnyEvent::MP::Node"; |
34 | |
40 | |
35 | sub send { |
41 | # called at init time, mostly sets {send} |
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42 | sub transport_reset { |
36 | my ($self, $msg) = @_; |
43 | my ($self) = @_; |
37 | |
44 | |
38 | if ($self->{transport}) { |
45 | delete $self->{transport}; |
39 | $self->{transport}->send ($msg); |
46 | |
40 | } elsif ($self->{queue}) { |
47 | Scalar::Util::weaken $self; |
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48 | |
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49 | $self->{send} = sub { |
41 | push @{ $self->{queue} }, $msg; |
50 | push @{$self->{queue}}, shift; |
42 | } else { |
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43 | $self->{queue} = [$msg]; |
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44 | $self->connect; |
51 | $self->connect; |
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52 | }; |
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53 | } |
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54 | |
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55 | # called only after successful handshake |
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56 | sub transport_error { |
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57 | my ($self, @reason) = @_; |
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58 | |
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59 | my $no_transport = !$self->{transport}; |
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60 | |
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61 | delete $self->{connect_w}; |
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62 | delete $self->{connect_to}; |
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63 | |
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64 | delete $self->{queue}; |
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65 | $self->transport_reset; |
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66 | |
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67 | AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason) |
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68 | unless $no_transport; |
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69 | |
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70 | if (my $mon = delete $self->{lmon}) { |
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71 | $_->(@reason) for map @$_, values %$mon; |
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72 | } |
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73 | } |
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74 | |
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75 | # called after handshake was successful |
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76 | sub transport_connect { |
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77 | my ($self, $transport) = @_; |
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78 | |
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79 | $self->transport_error (transport_error => "switched connections") |
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80 | if $self->{transport}; |
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81 | |
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82 | delete $self->{connect_w}; |
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83 | delete $self->{connect_to}; |
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84 | |
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85 | $self->{transport} = $transport; |
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86 | |
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87 | my $transport_send = $transport->can ("send"); |
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88 | |
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89 | $self->{send} = sub { |
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90 | $transport_send->($transport, $_[0]); |
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91 | }; |
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92 | |
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93 | AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1); |
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94 | |
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95 | $transport->send ($_) |
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96 | for @{ delete $self->{queue} || [] }; |
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97 | } |
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98 | |
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99 | sub connect { |
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100 | my ($self) = @_; |
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101 | |
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102 | Scalar::Util::weaken $self; |
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103 | |
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104 | $self->{connect_to} ||= AE::timer |
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105 | $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT, |
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106 | 0, |
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107 | sub { |
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108 | $self->transport_error (transport_error => $self->{noderef}, "unable to connect"); |
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109 | }; |
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110 | |
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111 | unless ($self->{connect_w}) { |
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112 | my @endpoints; |
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113 | my %trial; |
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114 | |
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115 | $self->{connect_w} = AE::timer |
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116 | 0, |
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117 | $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL, |
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118 | sub { |
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119 | @endpoints = split /,/, $self->{noderef} |
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120 | unless @endpoints; |
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121 | |
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122 | my $endpoint = shift @endpoints; |
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123 | |
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124 | $trial{$endpoint} ||= do { |
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125 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
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126 | or return $AnyEvent::MP::Kernel::WARN->("$self->{noderef}: not a resolved node reference."); |
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127 | |
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128 | AnyEvent::MP::Transport::mp_connect |
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129 | $host, $port, |
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130 | sub { delete $trial{$endpoint} } |
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131 | ; |
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132 | }; |
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133 | } |
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134 | ; |
45 | } |
135 | } |
46 | } |
136 | } |
47 | |
137 | |
48 | sub kill { |
138 | sub kill { |
49 | my ($self, $port, @reason) = @_; |
139 | my ($self, $port, @reason) = @_; |
… | |
… | |
74 | $self->send (["", mon0 => $portid]); |
164 | $self->send (["", mon0 => $portid]); |
75 | delete $self->{monitor}{$portid}; |
165 | delete $self->{monitor}{$portid}; |
76 | } |
166 | } |
77 | } |
167 | } |
78 | |
168 | |
79 | sub set_transport { |
169 | package AnyEvent::MP::Node::Direct; |
80 | my ($self, $transport) = @_; |
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81 | |
170 | |
82 | $self->clr_transport |
171 | use base "AnyEvent::MP::Node::External"; |
83 | if $self->{transport}; |
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84 | |
172 | |
85 | delete $self->{trial}; |
173 | package AnyEvent::MP::Node::Indirect; |
86 | delete $self->{retry}; |
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87 | delete $self->{next_connect}; |
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88 | |
174 | |
89 | $self->{transport} = $transport; |
175 | use base "AnyEvent::MP::Node::Direct"; |
90 | |
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91 | $transport->send ($_) |
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92 | for @{ delete $self->{queue} || [] }; |
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93 | } |
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94 | |
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95 | sub fail { |
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96 | my ($self, @reason) = @_; |
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97 | |
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98 | delete $self->{queue}; |
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99 | |
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100 | if (my $mon = delete $self->{lmon}) { |
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101 | $_->(@reason) for map @$_, values %$mon; |
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102 | } |
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103 | } |
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104 | |
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105 | sub clr_transport { |
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106 | my ($self, @reason) = @_; |
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107 | |
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108 | delete $self->{transport}; |
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109 | $self->connect; |
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110 | } |
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111 | |
176 | |
112 | sub connect { |
177 | sub connect { |
113 | my ($self) = @_; |
178 | my ($self) = @_; |
114 | |
179 | |
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180 | $self->transport_error (transport_error => $self->{noderef}, "unable to connect to indirect node"); |
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181 | } |
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182 | |
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183 | package AnyEvent::MP::Node::Self; |
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184 | |
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185 | use base "AnyEvent::MP::Node"; |
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186 | |
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187 | sub connect { |
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188 | # we are trivially connected |
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189 | } |
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190 | |
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191 | sub transport_reset { |
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192 | my ($self) = @_; |
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193 | |
115 | Scalar::Util::weaken $self; |
194 | Scalar::Util::weaken $self; |
116 | |
195 | |
117 | $self->{retry} ||= [split /,/, $self->{noderef}]; |
196 | $self->{send} = sub { |
118 | |
197 | local $AnyEvent::MP::Kernel::SRCNODE = $self; |
119 | my $endpoint = shift @{ $self->{retry} }; |
198 | AnyEvent::MP::Kernel::_inject (@{ $_[0] }); |
120 | |
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121 | if (defined $endpoint) { |
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122 | $self->{trial}{$endpoint} ||= do { |
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123 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
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124 | or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference."); |
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125 | |
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126 | my ($w, $g); |
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127 | |
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128 | $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub { |
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129 | delete $self->{trial}{$endpoint}; |
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130 | }; |
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131 | $g = AnyEvent::MP::Transport::mp_connect |
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132 | $host, $port, |
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133 | sub { |
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134 | delete $self->{trial}{$endpoint} |
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135 | unless @_; |
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136 | $g = shift; |
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137 | }; |
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138 | ; |
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139 | |
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140 | [$w, \$g] |
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141 | }; |
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142 | } else { |
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143 | $self->fail (transport_error => $self->{noderef}, "unable to connect"); |
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144 | } |
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145 | |
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146 | $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub { |
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147 | delete $self->{retry}; |
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148 | $self->connect; |
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149 | }; |
199 | }; |
150 | } |
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151 | |
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152 | package AnyEvent::MP::Node::Slave; |
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153 | |
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154 | use base "AnyEvent::MP::Node::Direct"; |
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155 | |
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156 | sub connect { |
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157 | my ($self) = @_; |
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158 | |
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159 | $self->fail (transport_error => $self->{noderef}, "unable to connect to slave node"); |
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160 | } |
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161 | |
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162 | package AnyEvent::MP::Node::Self; |
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163 | |
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164 | use base "AnyEvent::MP::Node"; |
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165 | |
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166 | sub set_transport { |
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167 | Carp::confess "FATAL error, set_transport was called on local node"; |
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168 | } |
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169 | |
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170 | sub send { |
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171 | local $AnyEvent::MP::Base::SRCNODE = $_[0]; |
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172 | AnyEvent::MP::Base::_inject (@{ $_[1] }); |
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173 | } |
200 | } |
174 | |
201 | |
175 | sub kill { |
202 | sub kill { |
176 | my ($self, $port, @reason) = @_; |
203 | my ($self, $port, @reason) = @_; |
177 | |
204 | |
178 | delete $AnyEvent::MP::Base::PORT{$port}; |
205 | delete $AnyEvent::MP::Kernel::PORT{$port}; |
179 | delete $AnyEvent::MP::Base::PORT_DATA{$port}; |
206 | delete $AnyEvent::MP::Kernel::PORT_DATA{$port}; |
180 | |
207 | |
181 | my $mon = delete $AnyEvent::MP::Base::LMON{$port} |
208 | my $mon = delete $AnyEvent::MP::Kernel::LMON{$port} |
182 | or !@reason |
209 | or !@reason |
183 | or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); |
210 | or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason"); |
184 | |
211 | |
185 | $_->(@reason) for values %$mon; |
212 | $_->(@reason) for values %$mon; |
186 | } |
213 | } |
187 | |
214 | |
188 | sub monitor { |
215 | sub monitor { |
189 | my ($self, $portid, $cb) = @_; |
216 | my ($self, $portid, $cb) = @_; |
190 | |
217 | |
191 | return $cb->(no_such_port => "cannot monitor nonexistent port") |
218 | return $cb->(no_such_port => "cannot monitor nonexistent port") |
192 | unless exists $AnyEvent::MP::Base::PORT{$portid}; |
219 | unless exists $AnyEvent::MP::Kernel::PORT{$portid}; |
193 | |
220 | |
194 | $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; |
221 | $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb; |
195 | } |
222 | } |
196 | |
223 | |
197 | sub unmonitor { |
224 | sub unmonitor { |
198 | my ($self, $portid, $cb) = @_; |
225 | my ($self, $portid, $cb) = @_; |
199 | |
226 | |
200 | delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; |
227 | delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0}; |
201 | } |
228 | } |
202 | |
229 | |
203 | =head1 SEE ALSO |
230 | =head1 SEE ALSO |
204 | |
231 | |
205 | L<AnyEvent>. |
232 | L<AnyEvent::MP>. |
206 | |
233 | |
207 | =head1 AUTHOR |
234 | =head1 AUTHOR |
208 | |
235 | |
209 | Marc Lehmann <schmorp@schmorp.de> |
236 | Marc Lehmann <schmorp@schmorp.de> |
210 | http://home.schmorp.de/ |
237 | http://home.schmorp.de/ |