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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.10 by root, Tue Aug 4 23:35:51 2009 UTC vs.
Revision 1.29 by root, Fri Aug 28 00:31:14 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, $id) = @_;
29 25
30 bless { noderef => $noderef }, $class 26 $self = bless { id => $id }, $self;
31}
32 27
28 $self->init;
29 $self->transport_reset;
30
31 $self
32}
33
34sub init {
35 #
36}
37
38sub send {
39 &{ shift->{send} }
40}
41
42# nodes reachable via the network
33package AnyEvent::MP::Node::Direct; 43package AnyEvent::MP::Node::External;
34 44
35use base "AnyEvent::MP::Node"; 45use base "AnyEvent::MP::Node";
36 46
37sub send { 47# called at init time, mostly sets {send}
48sub transport_reset {
38 my ($self, $msg) = @_; 49 my ($self) = @_;
39 50
40 if ($self->{transport}) { 51 delete $self->{transport};
41 $self->{transport}->send ($msg); 52
42 } elsif ($self->{queue}) { 53 Scalar::Util::weaken $self;
54
55 $self->{send} = sub {
43 push @{ $self->{queue} }, $msg; 56 push @{$self->{queue}}, shift;
44 } else {
45 $self->{queue} = [$msg];
46 $self->connect; 57 $self->connect;
58 };
59
60 $self->connect
61 if $self->{autoconnect};
62}
63
64# called only after successful handshake
65sub transport_error {
66 my ($self, @reason) = @_;
67
68 my $no_transport = !$self->{transport};
69
70 delete $self->{connect_w};
71 delete $self->{connect_to};
72
73 delete $self->{queue};
74 $self->transport_reset;
75
76 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
77 unless $no_transport;
78
79 if (my $mon = delete $self->{lmon}) {
80 $_->(@reason) for map @$_, values %$mon;
81 }
82}
83
84# called after handshake was successful
85sub transport_connect {
86 my ($self, $transport) = @_;
87
88 delete $self->{trial};
89
90 $self->transport_error (transport_error => "switched connections")
91 if $self->{transport};
92
93 delete $self->{connect_w};
94 delete $self->{connect_to};
95
96 $self->{transport} = $transport;
97
98 my $transport_send = $transport->can ("send");
99
100 $self->{send} = sub {
101 $transport_send->($transport, $_[0]);
102 };
103
104 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
105
106 $transport->send ($_)
107 for @{ delete $self->{queue} || [] };
108}
109
110sub connect {
111 my ($self, @addresses) = @_;
112
113 return if $self->{transport};
114
115 Scalar::Util::weaken $self;
116
117 $self->{connect_to} ||= AE::timer
118 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
119 0,
120 sub {
121 $self->transport_error (transport_error => $self->{id}, "unable to connect");
122 };
123
124 return unless @addresses;
125
126 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]");
127
128 unless ($self->{connect_w}) {
129 my @endpoints;
130
131 $self->{connect_w} = AE::timer
132 rand,
133 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
134 sub {
135 @endpoints = @addresses
136 unless @endpoints;
137
138 my $endpoint = shift @endpoints;
139
140 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint");
141
142 $self->{trial}{$endpoint} ||= do {
143 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
144 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference.");
145
146 AnyEvent::MP::Transport::mp_connect
147 $host, $port,
148 sub { delete $self->{trial}{$endpoint} },
149 };
150 }
151 ;
47 } 152 }
48} 153}
49 154
50sub kill { 155sub kill {
51 my ($self, $port, @reason) = @_; 156 my ($self, $port, @reason) = @_;
… …
54} 159}
55 160
56sub monitor { 161sub monitor {
57 my ($self, $portid, $cb) = @_; 162 my ($self, $portid, $cb) = @_;
58 163
59 return $cb->("node failed conenction")
60 if $self->{failed};
61
62 my $list = $self->{lmon}{$portid} ||= []; 164 my $list = $self->{lmon}{$portid} ||= [];
63 165
64 $self->send (["", mon1 => $portid]) 166 $self->send (["", mon1 => $portid])
65 unless @$list; 167 unless @$list || !length $portid;
66 168
67 push @$list, $cb; 169 push @$list, $cb;
68} 170}
69 171
70sub unmonitor { 172sub unmonitor {
… …
79 $self->send (["", mon0 => $portid]); 181 $self->send (["", mon0 => $portid]);
80 delete $self->{monitor}{$portid}; 182 delete $self->{monitor}{$portid};
81 } 183 }
82} 184}
83 185
84sub set_transport { 186# used for direct slave connections as well
85 my ($self, $transport) = @_; 187package AnyEvent::MP::Node::Direct;
86 188
87 $self->clr_transport 189use base "AnyEvent::MP::Node::External";
88 if $self->{transport};
89 190
90 if ( 191package AnyEvent::MP::Node::Self;
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 }
97 192
98 delete $self->{trial}; 193use base "AnyEvent::MP::Node";
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 $self->connect;
126}
127 194
128sub connect { 195sub connect {
196 # we are trivially connected
197}
198
199sub transport_reset {
129 my ($self) = @_; 200 my ($self) = @_;
130 201
131 Scalar::Util::weaken $self; 202 Scalar::Util::weaken $self;
132 203
133 $self->{retry} ||= [split /,/, $self->{noderef}]; 204 $self->{send} = sub {
134 205 local $AnyEvent::MP::Kernel::SRCNODE = $self;
135 my $endpoint = shift @{ $self->{retry} }; 206 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 $self->fail (transport_error => $self->{noderef}, "unable to connect");
161 }
162
163 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
164 $self->connect;
165 }; 207 };
166} 208}
167 209
168package AnyEvent::MP::Node::Self; 210sub transport_connect {
211 my ($self, $tp) = @_;
169 212
170use base "AnyEvent::MP::Node"; 213 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})");
171
172sub set_transport {
173 die "FATAL error, set_transport was called";
174}
175
176sub send {
177 local $AnyEvent::MP::Base::SRCNODE = $_[0];
178 AnyEvent::MP::Base::_inject (@{ $_[1] });
179} 214}
180 215
181sub kill { 216sub kill {
182 my ($self, $port, @reason) = @_; 217 my ($self, $port, @reason) = @_;
183 218
184 delete $AnyEvent::MP::Base::PORT{$port}; 219 delete $AnyEvent::MP::Kernel::PORT{$port};
185 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 220 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
186 221
187 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 222 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
188 or !@reason 223 or !@reason
189 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 224 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
190 225
191 $_->(@reason) for values %$mon; 226 $_->(@reason) for values %$mon;
192} 227}
193 228
194sub monitor { 229sub monitor {
195 my ($self, $portid, $cb) = @_; 230 my ($self, $portid, $cb) = @_;
196 231
197 return $cb->() 232 return $cb->(no_such_port => "cannot monitor nonexistent port")
198 unless exists $AnyEvent::MP::Base::PORT{$portid}; 233 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
199 234
200 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 235 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
201} 236}
202 237
203sub unmonitor { 238sub unmonitor {
204 my ($self, $portid, $cb) = @_; 239 my ($self, $portid, $cb) = @_;
205 240
206 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 241 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
207} 242}
208 243
209=head1 SEE ALSO 244=head1 SEE ALSO
210 245
211L<AnyEvent>. 246L<AnyEvent::MP>.
212 247
213=head1 AUTHOR 248=head1 AUTHOR
214 249
215 Marc Lehmann <schmorp@schmorp.de> 250 Marc Lehmann <schmorp@schmorp.de>
216 http://home.schmorp.de/ 251 http://home.schmorp.de/

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