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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.9 by root, Tue Aug 4 23:16:57 2009 UTC vs.
Revision 1.20 by root, Thu Aug 13 00:23:36 2009 UTC

… …
18use AnyEvent::Util (); 18use AnyEvent::Util ();
19use AnyEvent::Socket (); 19use AnyEvent::Socket ();
20 20
21use AnyEvent::MP::Transport (); 21use AnyEvent::MP::Transport ();
22 22
23use base Exporter::;
24
25our $VERSION = '0.0';
26
27sub new { 23sub new {
28 my ($class, $noderef) = @_; 24 my ($self, $noderef) = @_;
29 25
30 bless { noderef => $noderef }, $class 26 $self = bless { noderef => $noderef }, $self;
31}
32 27
28 $self->transport_reset;
29
30 $self
31}
32
33sub send {
34 &{ shift->{send} }
35}
36
33package AnyEvent::MP::Node::Direct; 37package AnyEvent::MP::Node::External;
34 38
35use base "AnyEvent::MP::Node"; 39use base "AnyEvent::MP::Node";
36 40
37sub send { 41# called at init time, mostly sets {send}
42sub transport_reset {
38 my ($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;
48
49 $self->{send} = sub {
43 push @{ $self->{queue} }, $msg; 50 push @{$self->{queue}}, shift;
44 } else {
45 $self->{queue} = [$msg];
46 $self->connect; 51 $self->connect;
52 };
53}
54
55# called only after successful handshake
56sub transport_error {
57 my ($self, @reason) = @_;
58
59 $self->{transport}
60 or return;
61
62 delete $self->{queue};
63 $self->transport_reset;
64
65 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason);
66
67 if (my $mon = delete $self->{lmon}) {
68 $_->(@reason) for map @$_, values %$mon;
69 }
70}
71
72# called after handshake was successful
73sub transport_connect {
74 my ($self, $transport) = @_;
75
76 $self->transport_error (transport_error => "switched connections")
77 if $self->{transport};
78
79 delete $self->{connect_w};
80 delete $self->{connect_to};
81
82 $self->{transport} = $transport;
83
84 my $transport_send = $transport->can ("send");
85
86 $self->{send} = sub {
87 $transport_send->($transport, $_[0]);
88 };
89
90 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
91
92 $transport->send ($_)
93 for @{ delete $self->{queue} || [] };
94}
95
96sub connect {
97 my ($self) = @_;
98
99 Scalar::Util::weaken $self;
100
101 $self->{connect_to} ||= AE::timer
102 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
103 0,
104 sub {
105 $self->transport_error (transport_error => $self->{noderef}, "unable to connect");
106 };
107
108 unless ($self->{connect_w}) {
109 my @endpoints;
110 my %trial;
111
112 $self->{connect_w} = AE::timer
113 0,
114 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
115 sub {
116 @endpoints = split /,/, $self->{noderef}
117 unless @endpoints;
118
119 my $endpoint = shift @endpoints;
120
121 $trial{$endpoint} ||= do {
122 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
123 or return $AnyEvent::MP::Kernel::WARN->("$self->{noderef}: not a resolved node reference.");
124
125 AnyEvent::MP::Transport::mp_connect
126 $host, $port,
127 sub { delete $trial{$endpoint} }
128 ;
129 };
130 }
131 ;
47 } 132 }
48} 133}
49 134
50sub kill { 135sub kill {
51 my ($self, $port, @reason) = @_; 136 my ($self, $port, @reason) = @_;
… …
53 $self->send (["", kil => $port, @reason]); 138 $self->send (["", kil => $port, @reason]);
54} 139}
55 140
56sub monitor { 141sub monitor {
57 my ($self, $portid, $cb) = @_; 142 my ($self, $portid, $cb) = @_;
58
59 return $cb->("node failed conenction")
60 if $self->{failed};
61 143
62 my $list = $self->{lmon}{$portid} ||= []; 144 my $list = $self->{lmon}{$portid} ||= [];
63 145
64 $self->send (["", mon1 => $portid]) 146 $self->send (["", mon1 => $portid])
65 unless @$list; 147 unless @$list;
… …
79 $self->send (["", mon0 => $portid]); 161 $self->send (["", mon0 => $portid]);
80 delete $self->{monitor}{$portid}; 162 delete $self->{monitor}{$portid};
81 } 163 }
82} 164}
83 165
84sub set_transport { 166package AnyEvent::MP::Node::Direct;
85 my ($self, $transport) = @_;
86 167
87 $self->clr_transport 168use base "AnyEvent::MP::Node::External";
88 if $self->{transport};
89 169
90 if ( 170package AnyEvent::MP::Node::Indirect;
91 exists $self->{remote_uniq}
92 && $self->{remote_uniq} ne $transport->{remote_uniq}
93 ) {
94 # uniq changed, different node
95 $self->fail ("node restart detected");
96 }
97 171
98 delete $self->{trial}; 172use base "AnyEvent::MP::Node::Direct";
99 delete $self->{next_connect};
100 delete $self->{failed};
101
102 $self->{remote_uniq} = $transport->{remote_uniq};
103 $self->{transport} = $transport;
104
105 $transport->send ($_)
106 for @{ delete $self->{queue} || [] };
107}
108
109sub fail {
110 my ($self, @reason) = @_;
111
112 delete $self->{queue};
113
114 $self->{failed} = 1;
115
116 if (my $mon = delete $self->{lmon}) {
117 $_->(@reason) for map @$_, values %$mon;
118 }
119}
120
121sub clr_transport {
122 my ($self, @reason) = @_;
123
124 delete $self->{transport};
125 $self->connect;
126}
127 173
128sub connect { 174sub connect {
129 my ($self) = @_; 175 my ($self) = @_;
130 176
177 $self->transport_error (transport_error => $self->{noderef}, "unable to connect to indirect node");
178}
179
180package AnyEvent::MP::Node::Self;
181
182use base "AnyEvent::MP::Node";
183
184sub connect {
185 # we are trivially connected
186}
187
188sub transport_reset {
189 my ($self) = @_;
190
131 Scalar::Util::weaken $self; 191 Scalar::Util::weaken $self;
132 192
133 $self->{retry} ||= [split /,/, $self->{noderef}]; 193 $self->{send} = sub {
134 194 local $AnyEvent::MP::Kernel::SRCNODE = $self;
135 my $endpoint = shift @{ $self->{retry} }; 195 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
136
137 if (defined $endpoint) {
138 $self->{trial}{$endpoint} ||= do {
139 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
140 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
141
142 my ($w, $g);
143
144 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
145 delete $self->{trial}{$endpoint};
146 };
147 $g = AnyEvent::MP::Transport::mp_connect
148 $host, $port,
149 sub {
150 delete $self->{trial}{$endpoint}
151 unless @_;
152 $g = shift;
153 };
154 ;
155
156 [$w, \$g]
157 };
158 } else {
159 delete $self->{retry};
160 }
161
162 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
163 $self->connect;
164 }; 196 };
165}
166
167package AnyEvent::MP::Node::Self;
168
169use base "AnyEvent::MP::Node";
170
171sub set_transport {
172 die "FATAL error, set_transport was called";
173}
174
175sub send {
176 local $AnyEvent::MP::Base::SRCNODE = $_[0];
177 AnyEvent::MP::Base::_inject (@{ $_[1] });
178} 197}
179 198
180sub kill { 199sub kill {
181 my ($self, $port, @reason) = @_; 200 my ($self, $port, @reason) = @_;
182 201
183 delete $AnyEvent::MP::Base::PORT{$port}; 202 delete $AnyEvent::MP::Kernel::PORT{$port};
184 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 203 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
185 204
186 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 205 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
187 or !@reason 206 or !@reason
188 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 207 or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason");
189 208
190 $_->(@reason) for values %$mon; 209 $_->(@reason) for values %$mon;
191} 210}
192 211
193sub monitor { 212sub monitor {
194 my ($self, $portid, $cb) = @_; 213 my ($self, $portid, $cb) = @_;
195 214
196 return $cb->() 215 return $cb->(no_such_port => "cannot monitor nonexistent port")
197 unless exists $AnyEvent::MP::Base::PORT{$portid}; 216 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
198 217
199 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 218 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
200} 219}
201 220
202sub unmonitor { 221sub unmonitor {
203 my ($self, $portid, $cb) = @_; 222 my ($self, $portid, $cb) = @_;
204 223
205 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 224 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
206} 225}
207 226
208=head1 SEE ALSO 227=head1 SEE ALSO
209 228
210L<AnyEvent>. 229L<AnyEvent::MP>.
211 230
212=head1 AUTHOR 231=head1 AUTHOR
213 232
214 Marc Lehmann <schmorp@schmorp.de> 233 Marc Lehmann <schmorp@schmorp.de>
215 http://home.schmorp.de/ 234 http://home.schmorp.de/

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