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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.15 by root, Sat Aug 8 21:56:29 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, $port, @reason) = @_;
… …
57 my ($self, $portid, $cb) = @_; 162 my ($self, $portid, $cb) = @_;
58 163
59 my $list = $self->{lmon}{$portid} ||= []; 164 my $list = $self->{lmon}{$portid} ||= [];
60 165
61 $self->send (["", mon1 => $portid]) 166 $self->send (["", mon1 => $portid])
62 unless @$list; 167 unless @$list || !length $portid;
63 168
64 push @$list, $cb; 169 push @$list, $cb;
65} 170}
66 171
67sub unmonitor { 172sub unmonitor {
… …
76 $self->send (["", mon0 => $portid]); 181 $self->send (["", mon0 => $portid]);
77 delete $self->{monitor}{$portid}; 182 delete $self->{monitor}{$portid};
78 } 183 }
79} 184}
80 185
81sub set_transport { 186# used for direct slave connections as well
82 my ($self, $transport) = @_; 187package AnyEvent::MP::Node::Direct;
83 188
84 $self->clr_transport 189use base "AnyEvent::MP::Node::External";
85 if $self->{transport};
86 190
87 delete $self->{trial}; 191package AnyEvent::MP::Node::Self;
88 delete $self->{next_connect};
89 192
90 $self->{transport} = $transport; 193use base "AnyEvent::MP::Node";
91
92 $transport->send ($_)
93 for @{ delete $self->{queue} || [] };
94}
95
96sub fail {
97 my ($self, @reason) = @_;
98
99 delete $self->{queue};
100
101 if (my $mon = delete $self->{lmon}) {
102 $_->(@reason) for map @$_, values %$mon;
103 }
104}
105
106sub clr_transport {
107 my ($self, @reason) = @_;
108
109 delete $self->{transport};
110 $self->connect;
111}
112 194
113sub connect { 195sub connect {
196 # we are trivially connected
197}
198
199sub transport_reset {
114 my ($self) = @_; 200 my ($self) = @_;
115 201
116 Scalar::Util::weaken $self; 202 Scalar::Util::weaken $self;
117 203
118 $self->{retry} ||= [split /,/, $self->{noderef}]; 204 $self->{send} = sub {
119 205 local $AnyEvent::MP::Kernel::SRCNODE = $self;
120 my $endpoint = shift @{ $self->{retry} }; 206 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
121
122 if (defined $endpoint) {
123 $self->{trial}{$endpoint} ||= do {
124 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
125 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
126
127 my ($w, $g);
128
129 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
130 delete $self->{trial}{$endpoint};
131 };
132 $g = AnyEvent::MP::Transport::mp_connect
133 $host, $port,
134 sub {
135 delete $self->{trial}{$endpoint}
136 unless @_;
137 $g = shift;
138 };
139 ;
140
141 [$w, \$g]
142 };
143 } else {
144 delete $self->{retry};
145 $self->fail (transport_error => $self->{noderef}, "unable to connect");
146 }
147
148 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
149 $self->connect;
150 }; 207 };
151} 208}
152 209
153package AnyEvent::MP::Node::Slave; 210sub transport_connect {
154
155use base "AnyEvent::MP::Node::Direct";
156
157sub connect {
158 my ($self) = @_; 211 my ($self, $tp) = @_;
159 212
160 $self->fail (transport_error => $self->{noderef}, "unable to connect to slave node"); 213 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})");
161}
162
163package AnyEvent::MP::Node::Self;
164
165use base "AnyEvent::MP::Node";
166
167sub set_transport {
168 Carp::confess "FATAL error, set_transport was called on local node";
169}
170
171sub send {
172 local $AnyEvent::MP::Base::SRCNODE = $_[0];
173 AnyEvent::MP::Base::_inject (@{ $_[1] });
174} 214}
175 215
176sub kill { 216sub kill {
177 my ($self, $port, @reason) = @_; 217 my ($self, $port, @reason) = @_;
178 218
179 delete $AnyEvent::MP::Base::PORT{$port}; 219 delete $AnyEvent::MP::Kernel::PORT{$port};
180 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 220 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
181 221
182 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 222 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
183 or !@reason 223 or !@reason
184 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");
185 225
186 $_->(@reason) for values %$mon; 226 $_->(@reason) for values %$mon;
187} 227}
188 228
189sub monitor { 229sub monitor {
190 my ($self, $portid, $cb) = @_; 230 my ($self, $portid, $cb) = @_;
191 231
192 return $cb->(no_such_port => "cannot monitor nonexistent port") 232 return $cb->(no_such_port => "cannot monitor nonexistent port")
193 unless exists $AnyEvent::MP::Base::PORT{$portid}; 233 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
194 234
195 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 235 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
196} 236}
197 237
198sub unmonitor { 238sub unmonitor {
199 my ($self, $portid, $cb) = @_; 239 my ($self, $portid, $cb) = @_;
200 240
201 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 241 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
202} 242}
203 243
204=head1 SEE ALSO 244=head1 SEE ALSO
205 245
206L<AnyEvent>. 246L<AnyEvent::MP>.
207 247
208=head1 AUTHOR 248=head1 AUTHOR
209 249
210 Marc Lehmann <schmorp@schmorp.de> 250 Marc Lehmann <schmorp@schmorp.de>
211 http://home.schmorp.de/ 251 http://home.schmorp.de/

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