… | |
… | |
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::; |
23 | sub new { |
24 | |
|
|
25 | our $VERSION = '0.0'; |
|
|
26 | |
|
|
27 | our $DEFAULT_PORT = "4040"; |
|
|
28 | |
|
|
29 | sub normalise_noderef($) { |
|
|
30 | my ($noderef) = @_; |
24 | my ($self, $noderef) = @_; |
31 | |
25 | |
32 | my $cv = AE::cv; |
26 | $self = bless { noderef => $noderef }, $self; |
33 | my @res; |
|
|
34 | |
27 | |
35 | $cv->begin (sub { |
28 | $self->transport_reset; |
36 | my %seen; |
29 | |
37 | my @refs; |
30 | $self |
38 | for (sort { $a->[0] <=> $b->[0] } @res) { |
31 | } |
39 | push @refs, $_->[1] unless $seen{$_->[1]}++ |
32 | |
|
|
33 | sub send { |
|
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34 | &{ shift->{send} } |
|
|
35 | } |
|
|
36 | |
|
|
37 | package AnyEvent::MP::Node::External; |
|
|
38 | |
|
|
39 | use base "AnyEvent::MP::Node"; |
|
|
40 | |
|
|
41 | # called at init time, mostly sets {send} |
|
|
42 | sub transport_reset { |
|
|
43 | my ($self) = @_; |
|
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44 | |
|
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45 | delete $self->{transport}; |
|
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46 | |
|
|
47 | Scalar::Util::weaken $self; |
|
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48 | |
|
|
49 | $self->{send} = sub { |
|
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50 | push @{$self->{queue}}, shift; |
|
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51 | $self->connect; |
|
|
52 | }; |
|
|
53 | |
|
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54 | $self->connect |
|
|
55 | if $self->{autoconnect}; |
|
|
56 | } |
|
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57 | |
|
|
58 | # called only after successful handshake |
|
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59 | sub transport_error { |
|
|
60 | my ($self, @reason) = @_; |
|
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61 | |
|
|
62 | my $no_transport = !$self->{transport}; |
|
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63 | |
|
|
64 | delete $self->{connect_w}; |
|
|
65 | delete $self->{connect_to}; |
|
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66 | |
|
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67 | delete $self->{queue}; |
|
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68 | $self->transport_reset; |
|
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69 | |
|
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70 | AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason) |
|
|
71 | unless $no_transport; |
|
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72 | |
|
|
73 | if (my $mon = delete $self->{lmon}) { |
|
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74 | $_->(@reason) for map @$_, values %$mon; |
|
|
75 | } |
|
|
76 | } |
|
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77 | |
|
|
78 | # called after handshake was successful |
|
|
79 | sub transport_connect { |
|
|
80 | my ($self, $transport) = @_; |
|
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81 | |
|
|
82 | # first connect with a master node |
|
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83 | $AnyEvent::MP::Kernel::SLAVE->($self) |
|
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84 | if ref $AnyEvent::MP::Kernel::SLAVE; |
|
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85 | |
|
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86 | $self->transport_error (transport_error => "switched connections") |
|
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87 | if $self->{transport}; |
|
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88 | |
|
|
89 | delete $self->{connect_w}; |
|
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90 | delete $self->{connect_to}; |
|
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91 | |
|
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92 | $self->{transport} = $transport; |
|
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93 | |
|
|
94 | my $transport_send = $transport->can ("send"); |
|
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95 | |
|
|
96 | $self->{send} = sub { |
|
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97 | $transport_send->($transport, $_[0]); |
|
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98 | }; |
|
|
99 | |
|
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100 | AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1); |
|
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101 | |
|
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102 | $transport->send ($_) |
|
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103 | for @{ delete $self->{queue} || [] }; |
|
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104 | } |
|
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105 | |
|
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106 | sub connect { |
|
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107 | my ($self) = @_; |
|
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108 | |
|
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109 | return if $self->{transport}; |
|
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110 | |
|
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111 | Scalar::Util::weaken $self; |
|
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112 | |
|
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113 | $self->{connect_to} ||= AE::timer |
|
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114 | $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT, |
|
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115 | 0, |
|
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116 | sub { |
|
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117 | $self->transport_error (transport_error => $self->{noderef}, "unable to connect"); |
40 | } |
118 | }; |
41 | shift->send (join ",", @refs); |
|
|
42 | }); |
|
|
43 | |
119 | |
44 | $noderef = $DEFAULT_PORT unless length $noderef; |
120 | unless ($self->{connect_w}) { |
|
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121 | my @endpoints; |
|
|
122 | my %trial; |
45 | |
123 | |
46 | my $idx; |
124 | $self->{connect_w} = AE::timer |
47 | for my $t (split /,/, $noderef) { |
125 | 0, |
48 | my $pri = ++$idx; |
126 | $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL, |
49 | |
127 | sub { |
50 | #TODO: this should be outside normalise_noderef and in become_public |
128 | @endpoints = split /,/, $self->{noderef} |
51 | if ($t =~ /^\d*$/) { |
129 | unless @endpoints; |
52 | require POSIX; |
|
|
53 | my $nodename = (POSIX::uname ())[1]; |
|
|
54 | |
130 | |
55 | $cv->begin; |
131 | my $endpoint = shift @endpoints; |
56 | AnyEvent::Socket::resolve_sockaddr $nodename, $t || "aemp=$DEFAULT_PORT", "tcp", 0, undef, sub { |
132 | |
57 | for (@_) { |
133 | $trial{$endpoint} ||= do { |
58 | my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3]; |
134 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
59 | push @res, [ |
135 | or return $AnyEvent::MP::Kernel::WARN->("$self->{noderef}: not a resolved node reference."); |
60 | $pri += 1e-5, |
136 | |
61 | AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service |
137 | AnyEvent::MP::Transport::mp_connect |
|
|
138 | $host, $port, |
|
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139 | sub { delete $trial{$endpoint} } |
62 | ]; |
140 | ; |
63 | } |
141 | }; |
64 | $cv->end; |
|
|
65 | }; |
|
|
66 | |
|
|
67 | # my (undef, undef, undef, undef, @ipv4) = gethostbyname $nodename; |
|
|
68 | # |
|
|
69 | # for (@ipv4) { |
|
|
70 | # push @res, [ |
|
|
71 | # $pri, |
|
|
72 | # AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $_, $t || $DEFAULT_PORT, |
|
|
73 | # ]; |
|
|
74 | # } |
|
|
75 | } else { |
|
|
76 | my ($host, $port) = AnyEvent::Socket::parse_hostport $t, "aemp=$DEFAULT_PORT" |
|
|
77 | or Carp::croak "$t: unparsable transport descriptor"; |
|
|
78 | |
|
|
79 | $cv->begin; |
|
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80 | AnyEvent::Socket::resolve_sockaddr $host, $port, "tcp", 0, undef, sub { |
|
|
81 | for (@_) { |
|
|
82 | my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3]; |
|
|
83 | push @res, [ |
|
|
84 | $pri += 1e-5, |
|
|
85 | AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service |
|
|
86 | ]; |
|
|
87 | } |
|
|
88 | $cv->end; |
|
|
89 | } |
142 | } |
90 | } |
143 | ; |
91 | } |
|
|
92 | |
|
|
93 | $cv->end; |
|
|
94 | |
|
|
95 | $cv |
|
|
96 | } |
|
|
97 | |
|
|
98 | sub new { |
|
|
99 | my ($class, $noderef) = @_; |
|
|
100 | |
|
|
101 | bless { noderef => $noderef }, $class |
|
|
102 | } |
|
|
103 | |
|
|
104 | package AnyEvent::MP::Node::Direct; |
|
|
105 | |
|
|
106 | use base "AnyEvent::MP::Node"; |
|
|
107 | |
|
|
108 | sub send { |
|
|
109 | my ($self, $msg) = @_; |
|
|
110 | |
|
|
111 | if ($self->{transport}) { |
|
|
112 | $self->{transport}->send ($msg); |
|
|
113 | } elsif ($self->{queue}) { |
|
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114 | push @{ $self->{queue} }, $msg; |
|
|
115 | } else { |
|
|
116 | $self->{queue} = [$msg]; |
|
|
117 | $self->connect; |
|
|
118 | } |
144 | } |
119 | } |
145 | } |
120 | |
146 | |
121 | sub kill { |
147 | sub kill { |
122 | my ($self, $port, @reason) = @_; |
148 | my ($self, $port, @reason) = @_; |
… | |
… | |
124 | $self->send (["", kil => $port, @reason]); |
150 | $self->send (["", kil => $port, @reason]); |
125 | } |
151 | } |
126 | |
152 | |
127 | sub monitor { |
153 | sub monitor { |
128 | my ($self, $portid, $cb) = @_; |
154 | my ($self, $portid, $cb) = @_; |
129 | |
|
|
130 | return $cb->("node failed conenction") |
|
|
131 | if $self->{failed}; |
|
|
132 | |
155 | |
133 | my $list = $self->{lmon}{$portid} ||= []; |
156 | my $list = $self->{lmon}{$portid} ||= []; |
134 | |
157 | |
135 | $self->send (["", mon1 => $portid]) |
158 | $self->send (["", mon1 => $portid]) |
136 | unless @$list; |
159 | unless @$list; |
… | |
… | |
150 | $self->send (["", mon0 => $portid]); |
173 | $self->send (["", mon0 => $portid]); |
151 | delete $self->{monitor}{$portid}; |
174 | delete $self->{monitor}{$portid}; |
152 | } |
175 | } |
153 | } |
176 | } |
154 | |
177 | |
155 | sub set_transport { |
178 | package AnyEvent::MP::Node::Direct; |
|
|
179 | |
|
|
180 | use base "AnyEvent::MP::Node::External"; |
|
|
181 | |
|
|
182 | package AnyEvent::MP::Node::Indirect; |
|
|
183 | |
|
|
184 | use base "AnyEvent::MP::Node::Direct"; |
|
|
185 | |
|
|
186 | sub master { |
156 | my ($self, $transport) = @_; |
187 | my ($self) = @_; |
157 | |
188 | |
158 | $self->clr_transport |
189 | my (undef, $master) = split /\@/, $self->{noderef}, 2; |
|
|
190 | $master =~ s/!/,/g; |
|
|
191 | $master |
|
|
192 | } |
|
|
193 | |
|
|
194 | sub transport_reset { |
|
|
195 | my ($self) = @_; |
|
|
196 | |
159 | if $self->{transport}; |
197 | if ($self->{transport}) { |
|
|
198 | # as an optimisation, immediately nuke slave nodes |
|
|
199 | delete $AnyEvent::MP::Kernel::NODE{$self->{noderef}}; |
|
|
200 | } else { |
|
|
201 | $self->SUPER::transport_reset; |
|
|
202 | return;#d##TODO# |
160 | |
203 | |
161 | if ( |
204 | my $noderef = $self->{noderef}; |
162 | exists $self->{remote_uniq} |
205 | my $master = $self->master; |
163 | && $self->{remote_uniq} ne $transport->{remote_uniq} |
|
|
164 | ) { |
|
|
165 | # uniq changed, different node |
|
|
166 | $self->fail ("node restart detected"); |
|
|
167 | } |
|
|
168 | |
206 | |
169 | delete $self->{trial}; |
207 | # slave nodes are so cool - we can always send to them :) |
170 | delete $self->{next_connect}; |
|
|
171 | delete $self->{failed}; |
|
|
172 | |
208 | |
173 | $self->{remote_uniq} = $transport->{remote_uniq}; |
209 | $self->{send} = sub { |
174 | $self->{transport} = $transport; |
|
|
175 | |
|
|
176 | $transport->send ($_) |
|
|
177 | for @{ delete $self->{queue} || [] }; |
|
|
178 | } |
|
|
179 | |
|
|
180 | sub fail { |
|
|
181 | my ($self, @reason) = @_; |
|
|
182 | |
|
|
183 | delete $self->{queue}; |
|
|
184 | |
|
|
185 | $self->{failed} = 1; |
|
|
186 | |
|
|
187 | if (my $mon = delete $self->{lmon}) { |
|
|
188 | $_->(@reason) for map @$_, values %$mon; |
|
|
189 | } |
|
|
190 | } |
|
|
191 | |
|
|
192 | sub clr_transport { |
|
|
193 | my ($self, @reason) = @_; |
|
|
194 | |
|
|
195 | delete $self->{transport}; |
|
|
196 | $self->connect; |
210 | $self->connect; |
|
|
211 | snd $master, relay => $noderef, @_; |
|
|
212 | }; |
|
|
213 | } |
197 | } |
214 | } |
198 | |
215 | |
199 | sub connect { |
216 | sub connect { |
200 | my ($self) = @_; |
217 | my ($self) = @_; |
201 | |
218 | |
|
|
219 | #TODO# |
|
|
220 | # # ask for a connection, #TODO# rate-limit this somehow |
|
|
221 | # snd $self->master, relay => $self->{noderef}, connect_node => $AnyEvent::MP::Kernel::NODE; |
|
|
222 | } |
|
|
223 | |
|
|
224 | package AnyEvent::MP::Node::Self; |
|
|
225 | |
|
|
226 | use base "AnyEvent::MP::Node"; |
|
|
227 | |
|
|
228 | sub connect { |
|
|
229 | # we are trivially connected |
|
|
230 | } |
|
|
231 | |
|
|
232 | sub transport_reset { |
|
|
233 | my ($self) = @_; |
|
|
234 | |
202 | Scalar::Util::weaken $self; |
235 | Scalar::Util::weaken $self; |
203 | |
236 | |
204 | unless (exists $self->{n_noderef}) { |
237 | $self->{send} = sub { |
205 | return if $self->{n_noderef_}++; |
|
|
206 | (AnyEvent::MP::Node::normalise_noderef ($self->{noderef}))->cb (sub { |
|
|
207 | $self or return; |
|
|
208 | delete $self->{n_noderef_}; |
|
|
209 | my $noderef = shift->recv; |
|
|
210 | |
|
|
211 | $self->{n_noderef} = $noderef; |
|
|
212 | |
|
|
213 | $AnyEvent::MP::Base::NODE{$_} = $self |
238 | local $AnyEvent::MP::Kernel::SRCNODE = $self; |
214 | for split /,/, $noderef; |
239 | AnyEvent::MP::Kernel::_inject (@{ $_[0] }); |
215 | |
|
|
216 | $self->connect; |
|
|
217 | }); |
|
|
218 | return; |
|
|
219 | } |
|
|
220 | |
|
|
221 | $self->{retry} ||= [split /,/, $self->{n_noderef}]; |
|
|
222 | |
|
|
223 | my $endpoint = shift @{ $self->{retry} }; |
|
|
224 | |
|
|
225 | if (defined $endpoint) { |
|
|
226 | $self->{trial}{$endpoint} ||= do { |
|
|
227 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
|
|
228 | or return; |
|
|
229 | |
|
|
230 | my ($w, $g); |
|
|
231 | |
|
|
232 | $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub { |
|
|
233 | delete $self->{trial}{$endpoint}; |
|
|
234 | }; |
|
|
235 | $g = AnyEvent::MP::Transport::mp_connect |
|
|
236 | $host, $port, |
|
|
237 | sub { |
|
|
238 | delete $self->{trial}{$endpoint} |
|
|
239 | unless @_; |
|
|
240 | $g = shift; |
|
|
241 | }; |
|
|
242 | ; |
|
|
243 | |
|
|
244 | [$w, \$g] |
|
|
245 | }; |
|
|
246 | } else { |
|
|
247 | delete $self->{retry}; |
|
|
248 | } |
|
|
249 | |
|
|
250 | $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub { |
|
|
251 | $self->connect; |
|
|
252 | }; |
240 | }; |
253 | } |
|
|
254 | |
|
|
255 | package AnyEvent::MP::Node::Self; |
|
|
256 | |
|
|
257 | use base "AnyEvent::MP::Node"; |
|
|
258 | |
|
|
259 | sub set_transport { |
|
|
260 | die "FATAL error, set_transport was called"; |
|
|
261 | } |
|
|
262 | |
|
|
263 | sub send { |
|
|
264 | local $AnyEvent::MP::Base::SRCNODE = $_[0]; |
|
|
265 | AnyEvent::MP::Base::_inject (@{ $_[1] }); |
|
|
266 | } |
241 | } |
267 | |
242 | |
268 | sub kill { |
243 | sub kill { |
269 | my ($self, $port, @reason) = @_; |
244 | my ($self, $port, @reason) = @_; |
270 | |
245 | |
271 | delete $AnyEvent::MP::Base::PORT{$port}; |
246 | delete $AnyEvent::MP::Kernel::PORT{$port}; |
272 | delete $AnyEvent::MP::Base::PORT_DATA{$port}; |
247 | delete $AnyEvent::MP::Kernel::PORT_DATA{$port}; |
273 | |
248 | |
274 | my $mon = delete $AnyEvent::MP::Base::LMON{$port} |
249 | my $mon = delete $AnyEvent::MP::Kernel::LMON{$port} |
275 | or !@reason |
250 | or !@reason |
276 | or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); |
251 | or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason"); |
277 | |
252 | |
278 | $_->(@reason) for values %$mon; |
253 | $_->(@reason) for values %$mon; |
279 | } |
254 | } |
280 | |
255 | |
281 | sub monitor { |
256 | sub monitor { |
282 | my ($self, $portid, $cb) = @_; |
257 | my ($self, $portid, $cb) = @_; |
283 | |
258 | |
284 | return $cb->() |
259 | return $cb->(no_such_port => "cannot monitor nonexistent port") |
285 | unless exists $AnyEvent::MP::Base::PORT{$portid}; |
260 | unless exists $AnyEvent::MP::Kernel::PORT{$portid}; |
286 | |
261 | |
287 | $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; |
262 | $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb; |
288 | } |
263 | } |
289 | |
264 | |
290 | sub unmonitor { |
265 | sub unmonitor { |
291 | my ($self, $portid, $cb) = @_; |
266 | my ($self, $portid, $cb) = @_; |
292 | |
267 | |
293 | delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; |
268 | delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0}; |
294 | } |
269 | } |
295 | |
270 | |
296 | =head1 SEE ALSO |
271 | =head1 SEE ALSO |
297 | |
272 | |
298 | L<AnyEvent>. |
273 | L<AnyEvent::MP>. |
299 | |
274 | |
300 | =head1 AUTHOR |
275 | =head1 AUTHOR |
301 | |
276 | |
302 | Marc Lehmann <schmorp@schmorp.de> |
277 | Marc Lehmann <schmorp@schmorp.de> |
303 | http://home.schmorp.de/ |
278 | http://home.schmorp.de/ |