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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.12 by root, Wed Aug 5 19:55:58 2009 UTC vs.
Revision 1.28 by root, Thu Aug 27 21:29:37 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 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]");
125 return unless @addresses;
126
127 unless ($self->{connect_w}) {
128 my @endpoints;
129
130 $self->{connect_w} = AE::timer
131 rand,
132 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
133 sub {
134 @endpoints = @addresses
135 unless @endpoints;
136
137 my $endpoint = shift @endpoints;
138
139 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint");
140
141 $self->{trial}{$endpoint} ||= do {
142 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
143 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference.");
144
145 AnyEvent::MP::Transport::mp_connect
146 $host, $port,
147 sub { delete $self->{trial}{$endpoint} },
148 };
149 }
150 ;
47 } 151 }
48} 152}
49 153
50sub kill { 154sub kill {
51 my ($self, $port, @reason) = @_; 155 my ($self, $port, @reason) = @_;
… …
54} 158}
55 159
56sub monitor { 160sub monitor {
57 my ($self, $portid, $cb) = @_; 161 my ($self, $portid, $cb) = @_;
58 162
59 return $cb->(transport_error => "node unreachable")
60 if $self->{failed};
61
62 my $list = $self->{lmon}{$portid} ||= []; 163 my $list = $self->{lmon}{$portid} ||= [];
63 164
64 $self->send (["", mon1 => $portid]) 165 $self->send (["", mon1 => $portid])
65 unless @$list; 166 unless @$list || !length $portid;
66 167
67 push @$list, $cb; 168 push @$list, $cb;
68} 169}
69 170
70sub unmonitor { 171sub unmonitor {
… …
79 $self->send (["", mon0 => $portid]); 180 $self->send (["", mon0 => $portid]);
80 delete $self->{monitor}{$portid}; 181 delete $self->{monitor}{$portid};
81 } 182 }
82} 183}
83 184
84sub set_transport { 185# used for direct slave connections as well
85 my ($self, $transport) = @_; 186package AnyEvent::MP::Node::Direct;
86 187
87 $self->clr_transport 188use base "AnyEvent::MP::Node::External";
88 if $self->{transport};
89 189
90 if ( 190package 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 }
97 191
98 delete $self->{trial}; 192use 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 $self->connect;
126}
127 193
128sub connect { 194sub connect {
195 # we are trivially connected
196}
197
198sub transport_reset {
129 my ($self) = @_; 199 my ($self) = @_;
130 200
131 Scalar::Util::weaken $self; 201 Scalar::Util::weaken $self;
132 202
133 $self->{retry} ||= [split /,/, $self->{noderef}]; 203 $self->{send} = sub {
134 204 local $AnyEvent::MP::Kernel::SRCNODE = $self;
135 my $endpoint = shift @{ $self->{retry} }; 205 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 $self->connect;
165 }; 206 };
166} 207}
167 208
168package AnyEvent::MP::Node::Self; 209sub transport_connect {
210 my ($self, $tp) = @_;
169 211
170use base "AnyEvent::MP::Node"; 212 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})");
171
172sub set_transport {
173 Carp::confess "FATAL error, set_transport was called on local node";
174}
175
176sub send {
177 local $AnyEvent::MP::Base::SRCNODE = $_[0];
178 AnyEvent::MP::Base::_inject (@{ $_[1] });
179} 213}
180 214
181sub kill { 215sub kill {
182 my ($self, $port, @reason) = @_; 216 my ($self, $port, @reason) = @_;
183 217
184 delete $AnyEvent::MP::Base::PORT{$port}; 218 delete $AnyEvent::MP::Kernel::PORT{$port};
185 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 219 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
186 220
187 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 221 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
188 or !@reason 222 or !@reason
189 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 223 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
190 224
191 $_->(@reason) for values %$mon; 225 $_->(@reason) for values %$mon;
192} 226}
193 227
194sub monitor { 228sub monitor {
195 my ($self, $portid, $cb) = @_; 229 my ($self, $portid, $cb) = @_;
196 230
197 return $cb->() 231 return $cb->(no_such_port => "cannot monitor nonexistent port")
198 unless exists $AnyEvent::MP::Base::PORT{$portid}; 232 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
199 233
200 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 234 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
201} 235}
202 236
203sub unmonitor { 237sub unmonitor {
204 my ($self, $portid, $cb) = @_; 238 my ($self, $portid, $cb) = @_;
205 239
206 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 240 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
207} 241}
208 242
209=head1 SEE ALSO 243=head1 SEE ALSO
210 244
211L<AnyEvent>. 245L<AnyEvent::MP>.
212 246
213=head1 AUTHOR 247=head1 AUTHOR
214 248
215 Marc Lehmann <schmorp@schmorp.de> 249 Marc Lehmann <schmorp@schmorp.de>
216 http://home.schmorp.de/ 250 http://home.schmorp.de/

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