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13 | package AnyEvent::MP::Node; |
13 | package AnyEvent::MP::Node; |
14 | |
14 | |
15 | use common::sense; |
15 | use common::sense; |
16 | |
16 | |
17 | use AE (); |
17 | use AE (); |
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18 | use AnyEvent::Util (); |
18 | use AnyEvent::Socket (); |
19 | use AnyEvent::Socket (); |
19 | |
20 | |
20 | use AnyEvent::MP::Transport (); |
21 | use AnyEvent::MP::Transport (); |
21 | |
22 | |
22 | use base Exporter::; |
23 | use base Exporter::; |
23 | |
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24 | our $VERSION = '0.0'; |
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25 | |
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26 | our $DEFAULT_PORT = "4040"; |
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27 | |
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28 | sub normalise_noderef($) { |
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29 | my ($noderef) = @_; |
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30 | |
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31 | my $cv = AE::cv; |
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32 | my @res; |
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33 | |
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34 | $cv->begin (sub { |
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35 | my %seen; |
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36 | my @refs; |
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37 | for (sort { $a->[0] <=> $b->[0] } @res) { |
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38 | push @refs, $_->[1] unless $seen{$_->[1]}++ |
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39 | } |
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40 | shift->send (join ",", @refs); |
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41 | }); |
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42 | |
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43 | $noderef = $DEFAULT_PORT unless length $noderef; |
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44 | |
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45 | my $idx; |
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46 | for my $t (split /,/, $noderef) { |
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47 | my $pri = ++$idx; |
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48 | |
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49 | #TODO: this should be outside normalise_noderef and in become_public |
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50 | if ($t =~ /^\d*$/) { |
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51 | require POSIX; |
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52 | my $nodename = (POSIX::uname ())[1]; |
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53 | |
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54 | $cv->begin; |
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55 | AnyEvent::Socket::resolve_sockaddr $nodename, $t || "aemp=$DEFAULT_PORT", "tcp", 0, undef, sub { |
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56 | for (@_) { |
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57 | my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3]; |
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58 | push @res, [ |
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59 | $pri += 1e-5, |
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60 | AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service |
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61 | ]; |
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62 | } |
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63 | $cv->end; |
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64 | }; |
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65 | |
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66 | # my (undef, undef, undef, undef, @ipv4) = gethostbyname $nodename; |
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67 | # |
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68 | # for (@ipv4) { |
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69 | # push @res, [ |
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70 | # $pri, |
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71 | # AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $_, $t || $DEFAULT_PORT, |
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72 | # ]; |
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73 | # } |
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74 | } else { |
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75 | my ($host, $port) = AnyEvent::Socket::parse_hostport $t, "aemp=$DEFAULT_PORT" |
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76 | or Carp::croak "$t: unparsable transport descriptor"; |
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77 | |
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78 | $cv->begin; |
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79 | AnyEvent::Socket::resolve_sockaddr $host, $port, "tcp", 0, undef, sub { |
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80 | for (@_) { |
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81 | my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3]; |
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82 | push @res, [ |
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83 | $pri += 1e-5, |
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84 | AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service |
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85 | ]; |
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86 | } |
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87 | $cv->end; |
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88 | } |
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89 | } |
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90 | } |
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91 | |
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92 | $cv->end; |
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93 | |
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94 | $cv |
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95 | } |
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96 | |
24 | |
97 | sub new { |
25 | sub new { |
98 | my ($class, $noderef) = @_; |
26 | my ($class, $noderef) = @_; |
99 | |
27 | |
100 | bless { noderef => $noderef }, $class |
28 | bless { noderef => $noderef }, $class |
… | |
… | |
115 | $self->{queue} = [$msg]; |
43 | $self->{queue} = [$msg]; |
116 | $self->connect; |
44 | $self->connect; |
117 | } |
45 | } |
118 | } |
46 | } |
119 | |
47 | |
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48 | sub kill { |
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49 | my ($self, $port, @reason) = @_; |
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50 | |
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51 | $self->send (["", kil => $port, @reason]); |
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52 | } |
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53 | |
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54 | sub monitor { |
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55 | my ($self, $portid, $cb) = @_; |
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56 | |
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57 | my $list = $self->{lmon}{$portid} ||= []; |
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58 | |
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59 | $self->send (["", mon1 => $portid]) |
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60 | unless @$list; |
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61 | |
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62 | push @$list, $cb; |
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63 | } |
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64 | |
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65 | sub unmonitor { |
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66 | my ($self, $portid, $cb) = @_; |
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67 | |
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68 | my $list = $self->{lmon}{$portid} |
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69 | or return; |
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70 | |
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71 | @$list = grep $_ != $cb, @$list; |
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72 | |
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73 | unless (@$list) { |
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74 | $self->send (["", mon0 => $portid]); |
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75 | delete $self->{monitor}{$portid}; |
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76 | } |
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77 | } |
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78 | |
120 | sub set_transport { |
79 | sub set_transport { |
121 | my ($self, $transport) = @_; |
80 | my ($self, $transport) = @_; |
122 | |
81 | |
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82 | $self->clr_transport |
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83 | if $self->{transport}; |
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84 | |
123 | delete $self->{trial}; |
85 | delete $self->{trial}; |
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86 | delete $self->{retry}; |
124 | delete $self->{next_connect}; |
87 | delete $self->{next_connect}; |
125 | |
88 | |
126 | if ( |
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127 | exists $self->{remote_uniq} |
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128 | && $self->{remote_uniq} ne $transport->{remote_uniq} |
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129 | ) { |
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130 | # uniq changed, drop queue |
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131 | delete $self->{queue}; |
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132 | #TODO: "DOWN" |
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133 | } |
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134 | |
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135 | $self->{remote_uniq} = $transport->{remote_uniq}; |
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136 | $self->{transport} = $transport; |
89 | $self->{transport} = $transport; |
137 | |
90 | |
138 | $transport->send ($_) |
91 | $transport->send ($_) |
139 | for @{ delete $self->{queue} || [] }; |
92 | for @{ delete $self->{queue} || [] }; |
140 | } |
93 | } |
141 | |
94 | |
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95 | sub fail { |
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96 | my ($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 %$mon; |
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102 | } |
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103 | } |
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104 | |
142 | sub clr_transport { |
105 | sub clr_transport { |
143 | my ($self) = @_; |
106 | my ($self, @reason) = @_; |
144 | |
107 | |
145 | delete $self->{transport}; |
108 | delete $self->{transport}; |
146 | |
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147 | $self->connect; |
109 | $self->connect; |
148 | } |
110 | } |
149 | |
111 | |
150 | sub connect { |
112 | sub connect { |
151 | my ($self) = @_; |
113 | my ($self) = @_; |
152 | |
114 | |
153 | Scalar::Util::weaken $self; |
115 | Scalar::Util::weaken $self; |
154 | |
116 | |
155 | unless (exists $self->{n_noderef}) { |
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156 | return if $self->{n_noderef_}++; |
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157 | (AnyEvent::MP::Node::normalise_noderef ($self->{noderef}))->cb (sub { |
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158 | $self or return; |
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159 | delete $self->{n_noderef_}; |
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160 | my $noderef = shift->recv; |
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161 | |
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162 | $self->{n_noderef} = $noderef; |
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163 | |
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164 | $AnyEvent::MP::Base::NODE{$_} = $self |
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165 | for split /,/, $noderef; |
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166 | |
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167 | $self->connect; |
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168 | }); |
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169 | return; |
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170 | } |
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171 | |
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172 | $self->{retry} ||= [split /,/, $self->{n_noderef}]; |
117 | $self->{retry} ||= [split /,/, $self->{noderef}]; |
173 | |
118 | |
174 | my $endpoint = shift @{ $self->{retry} }; |
119 | my $endpoint = shift @{ $self->{retry} }; |
175 | |
120 | |
176 | if (defined $endpoint) { |
121 | if (defined $endpoint) { |
177 | $self->{trial}{$endpoint} ||= do { |
122 | $self->{trial}{$endpoint} ||= do { |
178 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
123 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
179 | or return; |
124 | or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference."); |
180 | |
125 | |
181 | my ($w, $g); |
126 | my ($w, $g); |
182 | |
127 | |
183 | $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub { |
128 | $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub { |
184 | delete $self->{trial}{$endpoint}; |
129 | delete $self->{trial}{$endpoint}; |
… | |
… | |
193 | ; |
138 | ; |
194 | |
139 | |
195 | [$w, \$g] |
140 | [$w, \$g] |
196 | }; |
141 | }; |
197 | } else { |
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 { |
198 | delete $self->{retry}; |
147 | delete $self->{retry}; |
199 | } |
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200 | |
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201 | $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub { |
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202 | $self->connect; |
148 | $self->connect; |
203 | }; |
149 | }; |
204 | } |
150 | } |
205 | |
151 | |
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152 | package AnyEvent::MP::Node::Slave; |
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153 | |
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154 | use base "AnyEvent::MP::Node::Direct"; |
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155 | |
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156 | sub connect { |
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157 | my ($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 | |
206 | package AnyEvent::MP::Node::Self; |
162 | package AnyEvent::MP::Node::Self; |
207 | |
163 | |
208 | use base "AnyEvent::MP::Node"; |
164 | use base "AnyEvent::MP::Node"; |
209 | |
165 | |
210 | sub set_transport { |
166 | sub set_transport { |
211 | die "FATAL error, set_transport was called"; |
167 | Carp::confess "FATAL error, set_transport was called on local node"; |
212 | } |
168 | } |
213 | |
169 | |
214 | sub send { |
170 | sub send { |
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171 | local $AnyEvent::MP::Base::SRCNODE = $_[0]; |
215 | AnyEvent::MP::Base::_inject ($_[1]); |
172 | AnyEvent::MP::Base::_inject (@{ $_[1] }); |
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173 | } |
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174 | |
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175 | sub kill { |
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176 | my ($self, $port, @reason) = @_; |
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177 | |
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178 | delete $AnyEvent::MP::Base::PORT{$port}; |
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179 | delete $AnyEvent::MP::Base::PORT_DATA{$port}; |
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180 | |
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181 | my $mon = delete $AnyEvent::MP::Base::LMON{$port} |
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182 | or !@reason |
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183 | or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); |
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184 | |
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185 | $_->(@reason) for values %$mon; |
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186 | } |
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187 | |
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188 | sub monitor { |
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189 | my ($self, $portid, $cb) = @_; |
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190 | |
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191 | return $cb->(no_such_port => "cannot monitor nonexistent port") |
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192 | unless exists $AnyEvent::MP::Base::PORT{$portid}; |
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193 | |
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194 | $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; |
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195 | } |
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196 | |
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197 | sub unmonitor { |
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198 | my ($self, $portid, $cb) = @_; |
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199 | |
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200 | delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; |
216 | } |
201 | } |
217 | |
202 | |
218 | =head1 SEE ALSO |
203 | =head1 SEE ALSO |
219 | |
204 | |
220 | L<AnyEvent>. |
205 | L<AnyEvent>. |