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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 | our $VERSION = '0.0'; |
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26 | |
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27 | sub new { |
23 | sub new { |
28 | my ($class, $noderef) = @_; |
24 | my ($self, $noderef) = @_; |
29 | |
25 | |
30 | bless { noderef => $noderef }, $class |
26 | $self = bless { noderef => $noderef }, $self; |
31 | } |
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32 | |
27 | |
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28 | $self->transport_reset; |
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29 | |
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30 | $self |
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31 | } |
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32 | |
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33 | sub send { |
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34 | &{ shift->{send} } |
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35 | } |
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36 | |
33 | package AnyEvent::MP::Node::Direct; |
37 | package AnyEvent::MP::Node::External; |
34 | |
38 | |
35 | use base "AnyEvent::MP::Node"; |
39 | use base "AnyEvent::MP::Node"; |
36 | |
40 | |
37 | sub send { |
41 | # called at init time, mostly sets {send} |
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42 | sub transport_reset { |
38 | my ($self, $msg) = @_; |
43 | my ($self) = @_; |
39 | |
44 | |
40 | if ($self->{transport}) { |
45 | delete $self->{transport}; |
41 | $self->{transport}->send ($msg); |
46 | |
42 | } elsif ($self->{queue}) { |
47 | Scalar::Util::weaken $self; |
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48 | |
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49 | $self->{send} = sub { |
43 | push @{ $self->{queue} }, $msg; |
50 | push @{$self->{queue}}, shift; |
44 | } else { |
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45 | $self->{queue} = [$msg]; |
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46 | $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 | delete $self->{queue}; |
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60 | $self->transport_reset; |
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61 | |
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62 | if (my $mon = delete $self->{lmon}) { |
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63 | $_->(@reason) for map @$_, values %$mon; |
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64 | } |
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65 | } |
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66 | |
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67 | # called after handshake was successful |
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68 | sub transport_connect { |
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69 | my ($self, $transport) = @_; |
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70 | |
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71 | $self->transport_reset |
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72 | if $self->{transport}; |
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73 | |
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74 | delete $self->{connect_w}; |
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75 | delete $self->{connect_to}; |
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76 | |
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77 | $self->{transport} = $transport; |
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78 | |
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79 | my $transport_send = $transport->can ("send"); |
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80 | |
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81 | $self->{send} = sub { |
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82 | $transport_send->($transport, $_[0]); |
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83 | }; |
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84 | |
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85 | $transport->send ($_) |
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86 | for @{ delete $self->{queue} || [] }; |
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87 | } |
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88 | |
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89 | sub connect { |
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90 | my ($self) = @_; |
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91 | |
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92 | Scalar::Util::weaken $self; |
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93 | |
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94 | $self->{connect_to} ||= AE::timer |
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95 | $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT, |
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96 | 0, |
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97 | sub { |
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98 | $self->transport_error (transport_error => $self->{noderef}, "unable to connect"); |
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99 | }; |
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100 | |
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101 | unless ($self->{connect_w}) { |
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102 | my @endpoints; |
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103 | my %trial; |
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104 | |
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105 | $self->{connect_w} = AE::timer |
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106 | 0, |
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107 | $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL, |
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108 | sub { |
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109 | @endpoints = split /,/, $self->{noderef} |
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110 | unless @endpoints; |
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111 | |
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112 | my $endpoint = shift @endpoints; |
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113 | |
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114 | $trial{$endpoint} ||= do { |
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115 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
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116 | or return $AnyEvent::MP::Kernel::WARN->("$self->{noderef}: not a resolved node reference."); |
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117 | |
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118 | AnyEvent::MP::Transport::mp_connect |
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119 | $host, $port, |
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120 | sub { delete $trial{$endpoint} } |
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121 | ; |
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122 | }; |
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123 | } |
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124 | ; |
47 | } |
125 | } |
48 | } |
126 | } |
49 | |
127 | |
50 | sub kill { |
128 | sub kill { |
51 | my ($self, $port, @reason) = @_; |
129 | my ($self, $port, @reason) = @_; |
… | |
… | |
53 | $self->send (["", kil => $port, @reason]); |
131 | $self->send (["", kil => $port, @reason]); |
54 | } |
132 | } |
55 | |
133 | |
56 | sub monitor { |
134 | sub monitor { |
57 | my ($self, $portid, $cb) = @_; |
135 | my ($self, $portid, $cb) = @_; |
58 | |
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59 | return $cb->(transport_error => "node unreachable") |
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60 | if $self->{failed}; |
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61 | |
136 | |
62 | my $list = $self->{lmon}{$portid} ||= []; |
137 | my $list = $self->{lmon}{$portid} ||= []; |
63 | |
138 | |
64 | $self->send (["", mon1 => $portid]) |
139 | $self->send (["", mon1 => $portid]) |
65 | unless @$list; |
140 | unless @$list; |
… | |
… | |
79 | $self->send (["", mon0 => $portid]); |
154 | $self->send (["", mon0 => $portid]); |
80 | delete $self->{monitor}{$portid}; |
155 | delete $self->{monitor}{$portid}; |
81 | } |
156 | } |
82 | } |
157 | } |
83 | |
158 | |
84 | sub set_transport { |
159 | package AnyEvent::MP::Node::Direct; |
85 | my ($self, $transport) = @_; |
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86 | |
160 | |
87 | $self->clr_transport |
161 | use base "AnyEvent::MP::Node::External"; |
88 | if $self->{transport}; |
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89 | |
162 | |
90 | if ( |
163 | package AnyEvent::MP::Node::Indirect; |
91 | exists $self->{remote_uniq} |
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92 | && $self->{remote_uniq} ne $transport->{remote_uniq} |
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93 | ) { |
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94 | # uniq changed, different node |
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95 | $self->fail ("node restart detected"); |
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96 | } |
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97 | |
164 | |
98 | delete $self->{trial}; |
165 | use base "AnyEvent::MP::Node::Direct"; |
99 | delete $self->{next_connect}; |
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100 | delete $self->{failed}; |
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101 | |
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102 | $self->{remote_uniq} = $transport->{remote_uniq}; |
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103 | $self->{transport} = $transport; |
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104 | |
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105 | $transport->send ($_) |
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106 | for @{ delete $self->{queue} || [] }; |
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107 | } |
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108 | |
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109 | sub fail { |
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110 | my ($self, @reason) = @_; |
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111 | |
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112 | delete $self->{queue}; |
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113 | |
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114 | $self->{failed} = 1; |
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115 | |
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116 | if (my $mon = delete $self->{lmon}) { |
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117 | $_->(@reason) for map @$_, values %$mon; |
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118 | } |
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119 | } |
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120 | |
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121 | sub clr_transport { |
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122 | my ($self, @reason) = @_; |
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123 | |
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124 | delete $self->{transport}; |
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125 | $self->connect; |
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126 | } |
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127 | |
166 | |
128 | sub connect { |
167 | sub connect { |
129 | my ($self) = @_; |
168 | my ($self) = @_; |
130 | |
169 | |
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170 | $self->transport_error (transport_error => $self->{noderef}, "unable to connect to indirect node"); |
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171 | } |
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172 | |
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173 | package AnyEvent::MP::Node::Self; |
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174 | |
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175 | use base "AnyEvent::MP::Node"; |
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176 | |
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177 | sub transport_reset { |
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178 | my ($self) = @_; |
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179 | |
131 | Scalar::Util::weaken $self; |
180 | Scalar::Util::weaken $self; |
132 | |
181 | |
133 | $self->{retry} ||= [split /,/, $self->{noderef}]; |
182 | $self->{send} = sub { |
134 | |
183 | local $AnyEvent::MP::Kernel::SRCNODE = $self; |
135 | my $endpoint = shift @{ $self->{retry} }; |
184 | AnyEvent::MP::Kernel::_inject (@{ $_[0] }); |
136 | |
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137 | if (defined $endpoint) { |
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138 | $self->{trial}{$endpoint} ||= do { |
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139 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
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140 | or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference."); |
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141 | |
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142 | my ($w, $g); |
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143 | |
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144 | $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub { |
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145 | delete $self->{trial}{$endpoint}; |
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146 | }; |
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147 | $g = AnyEvent::MP::Transport::mp_connect |
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148 | $host, $port, |
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149 | sub { |
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150 | delete $self->{trial}{$endpoint} |
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151 | unless @_; |
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152 | $g = shift; |
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153 | }; |
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154 | ; |
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155 | |
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156 | [$w, \$g] |
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157 | }; |
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158 | } else { |
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159 | delete $self->{retry}; |
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160 | $self->fail (transport_error => $self->{noderef}, "unable to connect"); |
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161 | } |
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162 | |
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163 | $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub { |
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164 | $self->connect; |
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165 | }; |
185 | }; |
166 | } |
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167 | |
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168 | package AnyEvent::MP::Node::Self; |
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169 | |
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170 | use base "AnyEvent::MP::Node"; |
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171 | |
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172 | sub set_transport { |
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173 | Carp::confess "FATAL error, set_transport was called on local node"; |
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174 | } |
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175 | |
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176 | sub send { |
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177 | local $AnyEvent::MP::Base::SRCNODE = $_[0]; |
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178 | AnyEvent::MP::Base::_inject (@{ $_[1] }); |
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179 | } |
186 | } |
180 | |
187 | |
181 | sub kill { |
188 | sub kill { |
182 | my ($self, $port, @reason) = @_; |
189 | my ($self, $port, @reason) = @_; |
183 | |
190 | |
184 | delete $AnyEvent::MP::Base::PORT{$port}; |
191 | delete $AnyEvent::MP::Kernel::PORT{$port}; |
185 | delete $AnyEvent::MP::Base::PORT_DATA{$port}; |
192 | delete $AnyEvent::MP::Kernel::PORT_DATA{$port}; |
186 | |
193 | |
187 | my $mon = delete $AnyEvent::MP::Base::LMON{$port} |
194 | my $mon = delete $AnyEvent::MP::Kernel::LMON{$port} |
188 | or !@reason |
195 | or !@reason |
189 | or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); |
196 | or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason"); |
190 | |
197 | |
191 | $_->(@reason) for values %$mon; |
198 | $_->(@reason) for values %$mon; |
192 | } |
199 | } |
193 | |
200 | |
194 | sub monitor { |
201 | sub monitor { |
195 | my ($self, $portid, $cb) = @_; |
202 | my ($self, $portid, $cb) = @_; |
196 | |
203 | |
197 | return $cb->() |
204 | return $cb->(no_such_port => "cannot monitor nonexistent port") |
198 | unless exists $AnyEvent::MP::Base::PORT{$portid}; |
205 | unless exists $AnyEvent::MP::Kernel::PORT{$portid}; |
199 | |
206 | |
200 | $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; |
207 | $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb; |
201 | } |
208 | } |
202 | |
209 | |
203 | sub unmonitor { |
210 | sub unmonitor { |
204 | my ($self, $portid, $cb) = @_; |
211 | my ($self, $portid, $cb) = @_; |
205 | |
212 | |
206 | delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; |
213 | delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0}; |
207 | } |
214 | } |
208 | |
215 | |
209 | =head1 SEE ALSO |
216 | =head1 SEE ALSO |
210 | |
217 | |
211 | L<AnyEvent>. |
218 | L<AnyEvent::MP>. |
212 | |
219 | |
213 | =head1 AUTHOR |
220 | =head1 AUTHOR |
214 | |
221 | |
215 | Marc Lehmann <schmorp@schmorp.de> |
222 | Marc Lehmann <schmorp@schmorp.de> |
216 | http://home.schmorp.de/ |
223 | http://home.schmorp.de/ |