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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.16 by root, Sun Aug 9 16:08:16 2009 UTC vs.
Revision 1.26 by root, Sat Aug 15 15:13:04 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
25sub new { 23sub new {
26 my ($class, $noderef) = @_; 24 my ($self, $noderef) = @_;
27 25
28 bless { noderef => $noderef }, $class 26 $self = bless { noderef => $noderef }, $self;
29}
30 27
28 $self->transport_reset;
29
30 $self
31}
32
33sub send {
34 &{ shift->{send} }
35}
36
31package AnyEvent::MP::Node::Direct; 37package AnyEvent::MP::Node::External;
32 38
33use base "AnyEvent::MP::Node"; 39use base "AnyEvent::MP::Node";
34 40
35sub send { 41# called at init time, mostly sets {send}
42sub transport_reset {
36 my ($self, $msg) = @_; 43 my ($self) = @_;
37 44
38 if ($self->{transport}) { 45 delete $self->{transport};
39 $self->{transport}->send ($msg); 46
40 } elsif ($self->{queue}) { 47 Scalar::Util::weaken $self;
48
49 $self->{send} = sub {
41 push @{ $self->{queue} }, $msg; 50 push @{$self->{queue}}, shift;
42 } else {
43 $self->{queue} = [$msg];
44 $self->connect; 51 $self->connect;
52 };
53
54 $self->connect
55 if $self->{autoconnect};
56}
57
58# called only after successful handshake
59sub transport_error {
60 my ($self, @reason) = @_;
61
62 my $no_transport = !$self->{transport};
63
64 delete $self->{connect_w};
65 delete $self->{connect_to};
66
67 delete $self->{queue};
68 $self->transport_reset;
69
70 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
71 unless $no_transport;
72
73 if (my $mon = delete $self->{lmon}) {
74 $_->(@reason) for map @$_, values %$mon;
75 }
76}
77
78# called after handshake was successful
79sub transport_connect {
80 my ($self, $transport) = @_;
81
82 # first connect with a master node
83 $AnyEvent::MP::Kernel::SLAVE->($self)
84 if ref $AnyEvent::MP::Kernel::SLAVE;
85
86 $self->transport_error (transport_error => "switched connections")
87 if $self->{transport};
88
89 delete $self->{connect_w};
90 delete $self->{connect_to};
91
92 $self->{transport} = $transport;
93
94 my $transport_send = $transport->can ("send");
95
96 $self->{send} = sub {
97 $transport_send->($transport, $_[0]);
98 };
99
100 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
101
102 $transport->send ($_)
103 for @{ delete $self->{queue} || [] };
104}
105
106sub connect {
107 my ($self) = @_;
108
109 return if $self->{transport};
110
111 Scalar::Util::weaken $self;
112
113 $self->{connect_to} ||= AE::timer
114 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
115 0,
116 sub {
117 $self->transport_error (transport_error => $self->{noderef}, "unable to connect");
118 };
119
120 unless ($self->{connect_w}) {
121 my @endpoints;
122 my %trial;
123
124 $self->{connect_w} = AE::timer
125 rand,
126 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
127 sub {
128 @endpoints = split /,/, $self->{noderef}
129 unless @endpoints;
130
131 my $endpoint = shift @endpoints;
132
133 $trial{$endpoint} ||= do {
134 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
135 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{noderef}: not a resolved node reference.");
136
137 AnyEvent::MP::Transport::mp_connect
138 $host, $port,
139 sub { delete $trial{$endpoint} }
140 ;
141 };
142 }
143 ;
45 } 144 }
46} 145}
47 146
48sub kill { 147sub kill {
49 my ($self, $port, @reason) = @_; 148 my ($self, $port, @reason) = @_;
… …
55 my ($self, $portid, $cb) = @_; 154 my ($self, $portid, $cb) = @_;
56 155
57 my $list = $self->{lmon}{$portid} ||= []; 156 my $list = $self->{lmon}{$portid} ||= [];
58 157
59 $self->send (["", mon1 => $portid]) 158 $self->send (["", mon1 => $portid])
60 unless @$list; 159 unless @$list || !length $portid;
61 160
62 push @$list, $cb; 161 push @$list, $cb;
63} 162}
64 163
65sub unmonitor { 164sub unmonitor {
… …
74 $self->send (["", mon0 => $portid]); 173 $self->send (["", mon0 => $portid]);
75 delete $self->{monitor}{$portid}; 174 delete $self->{monitor}{$portid};
76 } 175 }
77} 176}
78 177
79sub set_transport { 178package AnyEvent::MP::Node::Direct;
179
180use base "AnyEvent::MP::Node::External";
181
182package AnyEvent::MP::Node::Indirect;
183
184use base "AnyEvent::MP::Node::Direct";
185
186sub master {
80 my ($self, $transport) = @_; 187 my ($self) = @_;
81 188
82 $self->clr_transport 189 my (undef, $master) = split /\@/, $self->{noderef}, 2;
190 $master =~ s/!/,/g;
191 $master
192}
193
194sub transport_reset {
195 my ($self) = @_;
196
83 if $self->{transport}; 197 if ($self->{transport}) {
198 # as an optimisation, immediately nuke slave nodes
199 delete $AnyEvent::MP::Kernel::NODE{$self->{noderef}};
200 } else {
201 $self->SUPER::transport_reset;
202 return;#d##TODO#
84 203
85 delete $self->{trial}; 204 my $noderef = $self->{noderef};
86 delete $self->{retry}; 205 my $master = $self->master;
87 delete $self->{next_connect};
88 206
89 $self->{transport} = $transport; 207 # slave nodes are so cool - we can always send to them :)
90 208
91 $transport->send ($_) 209 $self->{send} = sub {
92 for @{ delete $self->{queue} || [] };
93}
94
95sub fail {
96 my ($self, @reason) = @_;
97
98 delete $self->{queue};
99
100 if (my $mon = delete $self->{lmon}) {
101 $_->(@reason) for map @$_, values %$mon;
102 }
103}
104
105sub clr_transport {
106 my ($self, @reason) = @_;
107
108 delete $self->{transport};
109 $self->connect; 210 $self->connect;
211 snd $master, snd => $noderef, @_;
212 };
213 }
110} 214}
111 215
112sub connect { 216sub connect {
113 my ($self) = @_; 217 my ($self) = @_;
114 218
219 #TODO#
220# # ask for a connection, #TODO# rate-limit this somehow
221# snd $self->master, relay => $self->{noderef}, connect_node => $AnyEvent::MP::Kernel::NODE;
222}
223
224package AnyEvent::MP::Node::Self;
225
226use base "AnyEvent::MP::Node";
227
228sub connect {
229 # we are trivially connected
230}
231
232sub transport_reset {
233 my ($self) = @_;
234
115 Scalar::Util::weaken $self; 235 Scalar::Util::weaken $self;
116 236
117 $self->{retry} ||= [split /,/, $self->{noderef}]; 237 $self->{send} = sub {
118 238 local $AnyEvent::MP::Kernel::SRCNODE = $self;
119 my $endpoint = shift @{ $self->{retry} }; 239 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
120
121 if (defined $endpoint) {
122 $self->{trial}{$endpoint} ||= do {
123 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
124 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
125
126 my ($w, $g);
127
128 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
129 delete $self->{trial}{$endpoint};
130 };
131 $g = AnyEvent::MP::Transport::mp_connect
132 $host, $port,
133 sub {
134 delete $self->{trial}{$endpoint}
135 unless @_;
136 $g = shift;
137 };
138 ;
139
140 [$w, \$g]
141 };
142 } else {
143 $self->fail (transport_error => $self->{noderef}, "unable to connect");
144 }
145
146 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
147 delete $self->{retry};
148 $self->connect;
149 }; 240 };
150}
151
152package AnyEvent::MP::Node::Slave;
153
154use base "AnyEvent::MP::Node::Direct";
155
156sub connect {
157 my ($self) = @_;
158
159 $self->fail (transport_error => $self->{noderef}, "unable to connect to slave node");
160}
161
162package AnyEvent::MP::Node::Self;
163
164use base "AnyEvent::MP::Node";
165
166sub set_transport {
167 Carp::confess "FATAL error, set_transport was called on local node";
168}
169
170sub send {
171 local $AnyEvent::MP::Base::SRCNODE = $_[0];
172 AnyEvent::MP::Base::_inject (@{ $_[1] });
173} 241}
174 242
175sub kill { 243sub kill {
176 my ($self, $port, @reason) = @_; 244 my ($self, $port, @reason) = @_;
177 245
178 delete $AnyEvent::MP::Base::PORT{$port}; 246 delete $AnyEvent::MP::Kernel::PORT{$port};
179 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 247 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
180 248
181 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 249 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
182 or !@reason 250 or !@reason
183 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 251 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
184 252
185 $_->(@reason) for values %$mon; 253 $_->(@reason) for values %$mon;
186} 254}
187 255
188sub monitor { 256sub monitor {
189 my ($self, $portid, $cb) = @_; 257 my ($self, $portid, $cb) = @_;
190 258
191 return $cb->(no_such_port => "cannot monitor nonexistent port") 259 return $cb->(no_such_port => "cannot monitor nonexistent port")
192 unless exists $AnyEvent::MP::Base::PORT{$portid}; 260 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
193 261
194 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 262 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
195} 263}
196 264
197sub unmonitor { 265sub unmonitor {
198 my ($self, $portid, $cb) = @_; 266 my ($self, $portid, $cb) = @_;
199 267
200 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 268 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
201} 269}
202 270
203=head1 SEE ALSO 271=head1 SEE ALSO
204 272
205L<AnyEvent>. 273L<AnyEvent::MP>.
206 274
207=head1 AUTHOR 275=head1 AUTHOR
208 276
209 Marc Lehmann <schmorp@schmorp.de> 277 Marc Lehmann <schmorp@schmorp.de>
210 http://home.schmorp.de/ 278 http://home.schmorp.de/

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