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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 1.30 by root, Fri Aug 28 20:57:42 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 $self->connect;
58 };
59}
60
61# called only after successful handshake
62sub transport_error {
63 my ($self, @reason) = @_;
64
65 my $no_transport = !$self->{transport};
66
67 delete $self->{connect_w};
68 delete $self->{connect_to};
69
70 delete $self->{queue};
71 $self->transport_reset;
72
73 if (my $mon = delete $self->{lmon}) {
74 $_->(@reason) for map @$_, values %$mon;
75 }
76
77 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
78 unless $no_transport;
79}
80
81# called after handshake was successful
82sub transport_connect {
83 my ($self, $transport) = @_;
84
85 delete $self->{trial};
86
87 $self->transport_error (transport_error => "switched connections")
88 if $self->{transport};
89
90 delete $self->{connect_w};
91 delete $self->{connect_to};
92
93 $self->{transport} = $transport;
94
95 my $transport_send = $transport->can ("send");
96
97 $self->{send} = sub {
98 $transport_send->($transport, $_[0]);
99 };
100
101 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
102
103 $transport->send ($_)
104 for @{ delete $self->{queue} || [] };
105}
106
107sub connect {
108 my ($self, @addresses) = @_;
109
110 return if $self->{transport};
111
112 Scalar::Util::weaken $self;
113
114 $self->{connect_to} ||= AE::timer
115 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
116 0,
117 sub {
118 $self->transport_error (transport_error => $self->{id}, "unable to connect");
119 };
120
121 return unless @addresses;
122
123 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]");
124
125 unless ($self->{connect_w}) {
126 my @endpoints;
127
128 $self->{connect_w} = AE::timer
129 rand,
130 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
131 sub {
132 @endpoints = @addresses
133 unless @endpoints;
134
135 my $endpoint = shift @endpoints;
136
137 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint");
138
139 $self->{trial}{$endpoint} ||= do {
140 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
141 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference.");
142
143 AnyEvent::MP::Transport::mp_connect
144 $host, $port,
145 sub { delete $self->{trial}{$endpoint} },
146 };
147 }
148 ;
47 } 149 }
48} 150}
49 151
50sub kill { 152sub kill {
51 my ($self, $port, @reason) = @_; 153 my ($self, $port, @reason) = @_;
… …
54} 156}
55 157
56sub monitor { 158sub monitor {
57 my ($self, $portid, $cb) = @_; 159 my ($self, $portid, $cb) = @_;
58 160
59 return $cb->("node failed conenction")
60 if $self->{failed};
61
62 my $list = $self->{lmon}{$portid} ||= []; 161 my $list = $self->{lmon}{$portid} ||= [];
63 162
64 $self->send (["", mon1 => $portid]) 163 $self->send (["", mon1 => $portid])
65 unless @$list; 164 unless @$list || !length $portid;
66 165
67 push @$list, $cb; 166 push @$list, $cb;
68} 167}
69 168
70sub unmonitor { 169sub unmonitor {
… …
79 $self->send (["", mon0 => $portid]); 178 $self->send (["", mon0 => $portid]);
80 delete $self->{monitor}{$portid}; 179 delete $self->{monitor}{$portid};
81 } 180 }
82} 181}
83 182
84sub set_transport { 183# used for direct slave connections as well
85 my ($self, $transport) = @_; 184package AnyEvent::MP::Node::Direct;
86 185
87 $self->clr_transport 186use base "AnyEvent::MP::Node::External";
88 if $self->{transport};
89 187
90 if ( 188package 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 }
97 189
98 delete $self->{trial}; 190use 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 $self->connect;
126}
127 191
128sub connect { 192sub connect {
193 # we are trivially connected
194}
195
196sub transport_reset {
129 my ($self) = @_; 197 my ($self) = @_;
130 198
131 Scalar::Util::weaken $self; 199 Scalar::Util::weaken $self;
132 200
133 $self->{retry} ||= [split /,/, $self->{noderef}]; 201 $self->{send} = sub {
134 202 local $AnyEvent::MP::Kernel::SRCNODE = $self;
135 my $endpoint = shift @{ $self->{retry} }; 203 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 $self->connect;
164 }; 204 };
165} 205}
166 206
167package AnyEvent::MP::Node::Self; 207sub transport_connect {
208 my ($self, $tp) = @_;
168 209
169use base "AnyEvent::MP::Node"; 210 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})");
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 (@{ $_[1] });
178} 211}
179 212
180sub kill { 213sub kill {
181 my ($self, $port, @reason) = @_; 214 my ($self, $port, @reason) = @_;
182 215
183 delete $AnyEvent::MP::Base::PORT{$port}; 216 delete $AnyEvent::MP::Kernel::PORT{$port};
184 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 217 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
185 218
186 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 219 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
187 or !@reason 220 or !@reason
188 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 221 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
189 222
190 $_->(@reason) for values %$mon; 223 $_->(@reason) for values %$mon;
191} 224}
192 225
193sub monitor { 226sub monitor {
194 my ($self, $portid, $cb) = @_; 227 my ($self, $portid, $cb) = @_;
195 228
196 return $cb->() 229 return $cb->(no_such_port => "cannot monitor nonexistent port")
197 unless exists $AnyEvent::MP::Base::PORT{$portid}; 230 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
198 231
199 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 232 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
200} 233}
201 234
202sub unmonitor { 235sub unmonitor {
203 my ($self, $portid, $cb) = @_; 236 my ($self, $portid, $cb) = @_;
204 237
205 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 238 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
206} 239}
207 240
208=head1 SEE ALSO 241=head1 SEE ALSO
209 242
210L<AnyEvent>. 243L<AnyEvent::MP>.
211 244
212=head1 AUTHOR 245=head1 AUTHOR
213 246
214 Marc Lehmann <schmorp@schmorp.de> 247 Marc Lehmann <schmorp@schmorp.de>
215 http://home.schmorp.de/ 248 http://home.schmorp.de/

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