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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.60 by root, Wed Mar 21 15:22:16 2012 UTC vs.
Revision 1.67 by root, Sun Aug 28 08:23:34 2016 UTC

… …
10 10
11This is an internal utility module, horrible to look at, so don't. 11This is an internal utility module, horrible to look at, so don't.
12 12
13=cut 13=cut
14 14
15package AnyEvent::MP::Node; 15package AnyEvent::MP::Node; # base class for nodes
16 16
17use common::sense; 17use common::sense;
18 18
19use AE ();
20use AnyEvent::Util (); 19use AnyEvent ();
21use AnyEvent::Socket (); 20use AnyEvent::Socket ();
22 21
23use AnyEvent::MP::Transport (); 22use AnyEvent::MP::Transport ();
24 23
25sub new { 24sub new {
26 my ($self, $id) = @_; 25 my ($self, $id) = @_;
27 26
28 $self = bless { id => $id }, $self; 27 $self = bless { id => $id }, $self;
29 28
29 # register
30 $AnyEvent::MP::Kernel::NODE{$id} = $self;
31
30 $self->init; 32 $self->init;
31 $self->transport_reset; 33 $self->transport_reset;
32 34
33 $self 35 $self
34} 36}
35 37
38sub DESTROY {
39 # unregister
40 delete $AnyEvent::MP::Kernel::NODE{$_[0]{id}};
41}
42
36sub init { 43sub init {
37 # 44 #
38} 45}
39 46
40sub send { 47sub send {
41 &{ shift->{send} } 48 &{ shift->{send} }
42} 49}
43 50
44# nodes reachable via the network 51# nodes reachable via the network
45package AnyEvent::MP::Node::Remote; 52package AnyEvent::MP::Node::Remote; # a remote node
46 53
47use base "AnyEvent::MP::Node"; 54use base "AnyEvent::MP::Node";
48 55
49# called at init time, mostly sets {send} 56# called at init time, mostly sets {send}
50sub transport_reset { 57sub transport_reset {
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78 } 85 }
79 86
80 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason) 87 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
81 unless $no_transport; 88 unless $no_transport;
82 89
83 # if we are here and are idle, we nuke ourselves 90 # we weaken the node reference, so it can go away if unused
84 delete $AnyEvent::MP::Kernel::NODE{$self->{id}} 91 Scalar::Util::weaken $AnyEvent::MP::Kernel::NODE{$self->{id}}
85 unless $self->{transport} || $self->{connect_to}; 92 unless $self->{connect_to};
93
94 AE::log 9 => "@reason";
86} 95}
87 96
88# called after handshake was successful 97# called after handshake was successful
89sub transport_connect { 98sub transport_connect {
90 my ($self, $transport) = @_; 99 my ($self, $transport) = @_;
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113 my ($self) = @_; 122 my ($self) = @_;
114 123
115 return if $self->{transport}; 124 return if $self->{transport};
116 return if $self->{connect_w}; 125 return if $self->{connect_w};
117 126
127 # we unweaken the node reference, in case it was weakened before
128 $AnyEvent::MP::Kernel::NODE{$self->{id}}
129 = $AnyEvent::MP::Kernel::NODE{$self->{id}};
130
118 Scalar::Util::weaken $self; 131 Scalar::Util::weaken $self;
119 132
120 $self->{connect_to} ||= AE::timer $AnyEvent::MP::Kernel::CONFIG->{connect_interval}, 0, sub { 133 $self->{connect_to} ||= AE::timer $AnyEvent::MP::Kernel::CONFIG->{connect_interval}, 0, sub {
121 $self->transport_error (transport_error => $self->{id}, "unable to connect"); 134 $self->transport_error (transport_error => $self->{id}, "connect timeout");
122 }; 135 };
123 136
124 # maybe @$addresses? 137 # maybe @$addresses?
125 my $addresses = $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}}; 138 my $addresses = $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}};
126 139
127 if ($addresses) { 140 if ($addresses) {
128 $self->connect_to ($addresses); 141 $self->connect_to ($addresses);
129 } else { 142 } else {
130 # on global nodes, all bets are off now - we either know the node, or we don't 143 # on global nodes, all bets are off now - we either know the node, or we don't
131 unless ($AnyEvent::MP::Kernel::GLOBAL) { 144 if ($AnyEvent::MP::Kernel::GLOBAL) {
145 $self->transport_error (transport_error => $self->{id}, "no known address");
146 } else {
132 AnyEvent::MP::Kernel::g_find ($self->{id}); 147 AnyEvent::MP::Kernel::g_find ($self->{id});
133 } 148 }
134 } 149 }
135} 150}
136 151
… …
138 my ($self, $addresses) = @_; 153 my ($self, $addresses) = @_;
139 154
140 return if $self->{transport}; 155 return if $self->{transport};
141 return if $self->{connect_w}; 156 return if $self->{connect_w};
142 157
143 return unless @$addresses; 158 unless (@$addresses) {
159 $self->transport_error (transport_error => $self->{id}, "no known address");
160 return;
161 }
144 162
145 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@$addresses]"); 163 AE::log 9 => "connecting to $self->{id} with [@$addresses]";
146 164
147 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; 165 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
148 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; 166 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval};
149 167
150 $interval = ($monitor - $interval) / @$addresses 168 $interval = ($monitor - $interval) / @$addresses
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155 my @endpoints = reverse @$addresses; 173 my @endpoints = reverse @$addresses;
156 174
157 $self->{connect_w} = AE::timer 0, $interval * (0.9 + 0.1 * rand), sub { 175 $self->{connect_w} = AE::timer 0, $interval * (0.9 + 0.1 * rand), sub {
158 my $endpoint = pop @endpoints; 176 my $endpoint = pop @endpoints;
159 177
160 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint"); 178 AE::log 9 => "connecting to $self->{id} at $endpoint";
161 179
162 $self->{trial}{$endpoint} ||= do { 180 $self->{trial}{$endpoint} ||= do {
163 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 181 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
164 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference."); 182 or return AE::log critical => "$self->{id}: '$endpoint' is not a resolved node reference.";
165 183
166 AnyEvent::MP::Transport::mp_connect 184 AnyEvent::MP::Transport::mp_connect
167 $host, $port, 185 $host, $port,
168 sub { delete $self->{trial}{$endpoint} }, 186 sub { delete $self->{trial}{$endpoint} },
169 }; 187 };
170 }; 188 };
171} 189}
172 190
173sub connect {
174 my ($self) = @_;
175
176 return if $self->{transport};
177 return if $self->{connect_w};
178
179 Scalar::Util::weaken $self;
180
181 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
182
183 $self->{connect_to} ||= AE::timer $monitor, 0, sub {
184 $self->transport_error (transport_error => $self->{id}, "unable to connect");
185 };
186
187 # maybe @$addresses?
188 my @addresses = @{ $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}} };
189
190 unless (@addresses) {
191 # on global nodes, all bets are off now - we either know the node, or we don't
192 unless ($AnyEvent::MP::Kernel::GLOBAL) {
193 AnyEvent::MP::Kernel::g_find ($self->{id});
194 }
195 return;
196 }
197
198 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]");
199
200 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval};
201
202 $interval = ($monitor - $interval) / @addresses
203 if ($monitor - $interval) / @addresses < $interval;
204
205 $interval = 0.4 if $interval < 0.4;
206
207 my @endpoints;
208
209 $self->{connect_w} = AE::timer 0, $interval * (0.9 + 0.1 * rand), sub {
210 @endpoints = @addresses
211 unless @endpoints;
212
213 my $endpoint = shift @endpoints;
214
215 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint");
216
217 $self->{trial}{$endpoint} ||= do {
218 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
219 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference.");
220
221 AnyEvent::MP::Transport::mp_connect
222 $host, $port,
223 sub { delete $self->{trial}{$endpoint} },
224 };
225 };
226}
227
228sub kill { 191sub kill {
229 my ($self, $port, @reason) = @_; 192 my ($self, $port, @reason) = @_;
230 193
231 $self->{send} (["", kil => $port, @reason]); 194 $self->{send} (["", kil1 => $port, @reason]);
232} 195}
233 196
234sub monitor { 197sub monitor {
235 my ($self, $portid, $cb) = @_; 198 my ($self, $portid, $cb) = @_;
236 199
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254 $self->send (["", mon0 => $portid]); 217 $self->send (["", mon0 => $portid]);
255 delete $self->{monitor}{$portid}; 218 delete $self->{monitor}{$portid};
256 } 219 }
257} 220}
258 221
259package AnyEvent::MP::Node::Self; 222package AnyEvent::MP::Node::Self; # the local node
260 223
261use base "AnyEvent::MP::Node"; 224use base "AnyEvent::MP::Node";
262 225
263sub connect { 226sub connect {
264 # we are trivially connected 227 # we are trivially connected
… …
267# delay every so often to avoid recursion, also used to delay after spawn 230# delay every so often to avoid recursion, also used to delay after spawn
268our $DELAY = -50; 231our $DELAY = -50;
269our @DELAY; 232our @DELAY;
270our $DELAY_W; 233our $DELAY_W;
271 234
272sub _send_delayed { 235our $send_delayed = sub {
273 $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE; 236 $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
274 (shift @DELAY)->() 237 (shift @DELAY)->()
275 while @DELAY; 238 while @DELAY;
276 undef $DELAY_W; 239 undef $DELAY_W;
277 $DELAY = -50; 240 $DELAY = -50;
278} 241};
279 242
280sub transport_reset { 243sub transport_reset {
281 my ($self) = @_; 244 my ($self) = @_;
282 245
283 Scalar::Util::weaken $self; 246 Scalar::Util::weaken $self;
284 247
285 $self->{send} = sub { 248 $self->{send} = sub {
286 if ($DELAY++ >= 0) { 249 if (++$DELAY > 0) {
287 my $msg = $_[0]; 250 my $msg = $_[0];
288 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) }; 251 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) };
289 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 252 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
290 return; 253 return;
291 } 254 }
292 255
293 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE; 256 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
294 AnyEvent::MP::Kernel::_inject (@{ $_[0] }); 257 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
… …
296} 259}
297 260
298sub transport_connect { 261sub transport_connect {
299 my ($self, $tp) = @_; 262 my ($self, $tp) = @_;
300 263
301 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); 264 AE::log 9 => "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})";
302} 265}
303 266
304sub kill { 267sub kill {
305 my (undef, @args) = @_; 268 my (undef, @args) = @_;
306 269
307 # we _always_ delay kil's, to avoid calling mon callbacks 270 # we _always_ delay kil's, to avoid calling mon callbacks
308 # from anything but the event loop context. 271 # from anything but the event loop context.
309 $DELAY = 1; 272 $DELAY = 1;
310 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) }; 273 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) };
311 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 274 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
312} 275}
313 276
314sub monitor { 277sub monitor {
315 # maybe always delay, too? 278 # maybe always delay, too?
316 if ($DELAY_W) { 279 if ($DELAY_W) {

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