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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 1.21 by root, Thu Aug 13 00:49:23 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->("node failed conenction")
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
84sub set_transport { 169package AnyEvent::MP::Node::Direct;
85 my ($self, $transport) = @_;
86 170
87 $self->clr_transport 171use base "AnyEvent::MP::Node::External";
88 if $self->{transport};
89 172
90 if ( 173package 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 }
97 174
98 delete $self->{trial}; 175use 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 $self->connect;
126}
127 176
128sub connect { 177sub connect {
129 my ($self) = @_; 178 my ($self) = @_;
130 179
180 $self->transport_error (transport_error => $self->{noderef}, "unable to connect to indirect node");
181}
182
183package AnyEvent::MP::Node::Self;
184
185use base "AnyEvent::MP::Node";
186
187sub connect {
188 # we are trivially connected
189}
190
191sub transport_reset {
192 my ($self) = @_;
193
131 Scalar::Util::weaken $self; 194 Scalar::Util::weaken $self;
132 195
133 $self->{retry} ||= [split /,/, $self->{noderef}]; 196 $self->{send} = sub {
134 197 local $AnyEvent::MP::Kernel::SRCNODE = $self;
135 my $endpoint = shift @{ $self->{retry} }; 198 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 }; 199 };
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 (@{ $_[1] });
178} 200}
179 201
180sub kill { 202sub kill {
181 my ($self, $port, @reason) = @_; 203 my ($self, $port, @reason) = @_;
182 204
183 delete $AnyEvent::MP::Base::PORT{$port}; 205 delete $AnyEvent::MP::Kernel::PORT{$port};
184 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 206 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
185 207
186 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 208 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
187 or !@reason 209 or !@reason
188 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 210 or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason");
189 211
190 $_->(@reason) for values %$mon; 212 $_->(@reason) for values %$mon;
191} 213}
192 214
193sub monitor { 215sub monitor {
194 my ($self, $portid, $cb) = @_; 216 my ($self, $portid, $cb) = @_;
195 217
196 return $cb->() 218 return $cb->(no_such_port => "cannot monitor nonexistent port")
197 unless exists $AnyEvent::MP::Base::PORT{$portid}; 219 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
198 220
199 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 221 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
200} 222}
201 223
202sub unmonitor { 224sub unmonitor {
203 my ($self, $portid, $cb) = @_; 225 my ($self, $portid, $cb) = @_;
204 226
205 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 227 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
206} 228}
207 229
208=head1 SEE ALSO 230=head1 SEE ALSO
209 231
210L<AnyEvent>. 232L<AnyEvent::MP>.
211 233
212=head1 AUTHOR 234=head1 AUTHOR
213 235
214 Marc Lehmann <schmorp@schmorp.de> 236 Marc Lehmann <schmorp@schmorp.de>
215 http://home.schmorp.de/ 237 http://home.schmorp.de/

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