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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.13 by root, Wed Aug 5 22:40:51 2009 UTC vs.
Revision 1.22 by root, Thu Aug 13 22:50:47 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 my $no_transport = !$self->{transport};
60
61 delete $self->{connect_w};
62 delete $self->{connect_to};
63
64 delete $self->{queue};
65 $self->transport_reset;
66
67 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
68 unless $no_transport;
69
70 if (my $mon = delete $self->{lmon}) {
71 $_->(@reason) for map @$_, values %$mon;
72 }
73}
74
75# called after handshake was successful
76sub transport_connect {
77 my ($self, $transport) = @_;
78
79 $self->transport_error (transport_error => "switched connections")
80 if $self->{transport};
81
82 delete $self->{connect_w};
83 delete $self->{connect_to};
84
85 $self->{transport} = $transport;
86
87 my $transport_send = $transport->can ("send");
88
89 $self->{send} = sub {
90 $transport_send->($transport, $_[0]);
91 };
92
93 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
94
95 $transport->send ($_)
96 for @{ delete $self->{queue} || [] };
97}
98
99sub connect {
100 my ($self) = @_;
101
102 Scalar::Util::weaken $self;
103
104 $self->{connect_to} ||= AE::timer
105 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
106 0,
107 sub {
108 $self->transport_error (transport_error => $self->{noderef}, "unable to connect");
109 };
110
111 unless ($self->{connect_w}) {
112 my @endpoints;
113 my %trial;
114
115 $self->{connect_w} = AE::timer
116 0,
117 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
118 sub {
119 @endpoints = split /,/, $self->{noderef}
120 unless @endpoints;
121
122 my $endpoint = shift @endpoints;
123
124 $trial{$endpoint} ||= do {
125 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
126 or return $AnyEvent::MP::Kernel::WARN->("$self->{noderef}: not a resolved node reference.");
127
128 AnyEvent::MP::Transport::mp_connect
129 $host, $port,
130 sub { delete $trial{$endpoint} }
131 ;
132 };
133 }
134 ;
47 } 135 }
48} 136}
49 137
50sub kill { 138sub kill {
51 my ($self, $port, @reason) = @_; 139 my ($self, $port, @reason) = @_;
… …
53 $self->send (["", kil => $port, @reason]); 141 $self->send (["", kil => $port, @reason]);
54} 142}
55 143
56sub monitor { 144sub monitor {
57 my ($self, $portid, $cb) = @_; 145 my ($self, $portid, $cb) = @_;
58
59 return $cb->(transport_error => "node unreachable")
60 if $self->{failed};
61 146
62 my $list = $self->{lmon}{$portid} ||= []; 147 my $list = $self->{lmon}{$portid} ||= [];
63 148
64 $self->send (["", mon1 => $portid]) 149 $self->send (["", mon1 => $portid])
65 unless @$list; 150 unless @$list;
… …
79 $self->send (["", mon0 => $portid]); 164 $self->send (["", mon0 => $portid]);
80 delete $self->{monitor}{$portid}; 165 delete $self->{monitor}{$portid};
81 } 166 }
82} 167}
83 168
169package AnyEvent::MP::Node::Direct;
170
171use base "AnyEvent::MP::Node::External";
172
173package AnyEvent::MP::Node::Indirect;
174
175use base "AnyEvent::MP::Node::Direct";
176
84sub set_transport { 177sub transport_reset {
85 my ($self, $transport) = @_; 178 my ($self) = @_;
86 179
87 $self->clr_transport 180 # as an optimisation, immediately nuke slave nodes
181 delete $AnyEvent::MP::Kernel::NODE{$self->{noderef}}
88 if $self->{transport}; 182 if $self->{transport};
89 183
90 if ( 184 $self->SUPER::transport_reset;
91 exists $self->{remote_uniq}
92 && $self->{remote_uniq} ne $transport->{remote_uniq}
93 ) {
94 # uniq changed, different node
95 $self->fail (transport_error => $self->{noderef}, "node was restarted");
96 }
97
98 delete $self->{trial};
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 $self->connect;
126} 185}
127 186
128sub connect { 187sub connect {
129 my ($self) = @_; 188 my ($self) = @_;
130 189
190 $self->transport_error (transport_error => $self->{noderef}, "unable to connect to indirect node");
191}
192
193package AnyEvent::MP::Node::Self;
194
195use base "AnyEvent::MP::Node";
196
197sub connect {
198 # we are trivially connected
199}
200
201sub transport_reset {
202 my ($self) = @_;
203
131 Scalar::Util::weaken $self; 204 Scalar::Util::weaken $self;
132 205
133 $self->{retry} ||= [split /,/, $self->{noderef}]; 206 $self->{send} = sub {
134 207 local $AnyEvent::MP::Kernel::SRCNODE = $self;
135 my $endpoint = shift @{ $self->{retry} }; 208 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 $self->connect;
165 }; 209 };
166}
167
168package AnyEvent::MP::Node::Slave;
169
170use base "AnyEvent::MP::Node::Direct";
171
172sub connect {
173 my ($self) = @_;
174
175 $self->fail (transport_error => $self->{noderef}, "unable to connect to slave node");
176}
177
178package AnyEvent::MP::Node::Self;
179
180use base "AnyEvent::MP::Node";
181
182sub set_transport {
183 Carp::confess "FATAL error, set_transport was called on local node";
184}
185
186sub send {
187 local $AnyEvent::MP::Base::SRCNODE = $_[0];
188 AnyEvent::MP::Base::_inject (@{ $_[1] });
189} 210}
190 211
191sub kill { 212sub kill {
192 my ($self, $port, @reason) = @_; 213 my ($self, $port, @reason) = @_;
193 214
194 delete $AnyEvent::MP::Base::PORT{$port}; 215 delete $AnyEvent::MP::Kernel::PORT{$port};
195 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 216 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
196 217
197 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 218 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
198 or !@reason 219 or !@reason
199 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 220 or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason");
200 221
201 $_->(@reason) for values %$mon; 222 $_->(@reason) for values %$mon;
202} 223}
203 224
204sub monitor { 225sub monitor {
205 my ($self, $portid, $cb) = @_; 226 my ($self, $portid, $cb) = @_;
206 227
207 return $cb->() 228 return $cb->(no_such_port => "cannot monitor nonexistent port")
208 unless exists $AnyEvent::MP::Base::PORT{$portid}; 229 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
209 230
210 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 231 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
211} 232}
212 233
213sub unmonitor { 234sub unmonitor {
214 my ($self, $portid, $cb) = @_; 235 my ($self, $portid, $cb) = @_;
215 236
216 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 237 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
217} 238}
218 239
219=head1 SEE ALSO 240=head1 SEE ALSO
220 241
221L<AnyEvent>. 242L<AnyEvent::MP>.
222 243
223=head1 AUTHOR 244=head1 AUTHOR
224 245
225 Marc Lehmann <schmorp@schmorp.de> 246 Marc Lehmann <schmorp@schmorp.de>
226 http://home.schmorp.de/ 247 http://home.schmorp.de/

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