… | |
… | |
10 | |
10 | |
11 | This is an internal utility module, horrible to look at, so don't. |
11 | This is an internal utility module, horrible to look at, so don't. |
12 | |
12 | |
13 | =cut |
13 | =cut |
14 | |
14 | |
15 | package AnyEvent::MP::Node; |
15 | package AnyEvent::MP::Node; # base class for nodes |
16 | |
16 | |
17 | use common::sense; |
17 | use common::sense; |
18 | |
18 | |
19 | use AE (); |
|
|
20 | use AnyEvent::Util (); |
19 | use AnyEvent (); |
21 | use AnyEvent::Socket (); |
20 | use AnyEvent::Socket (); |
22 | |
21 | |
23 | use AnyEvent::MP::Transport (); |
22 | use AnyEvent::MP::Transport (); |
24 | |
23 | |
25 | sub new { |
24 | sub 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 | |
|
|
38 | sub DESTROY { |
|
|
39 | # unregister |
|
|
40 | delete $AnyEvent::MP::Kernel::NODE{$_[0]{id}}; |
|
|
41 | } |
|
|
42 | |
36 | sub init { |
43 | sub init { |
37 | # |
44 | # |
38 | } |
45 | } |
39 | |
46 | |
40 | sub send { |
47 | sub send { |
41 | &{ shift->{send} } |
48 | &{ shift->{send} } |
42 | } |
49 | } |
43 | |
50 | |
44 | # nodes reachable via the network |
51 | # nodes reachable via the network |
45 | package AnyEvent::MP::Node::External; |
52 | package AnyEvent::MP::Node::Remote; # a remote node |
46 | |
53 | |
47 | use base "AnyEvent::MP::Node"; |
54 | use base "AnyEvent::MP::Node"; |
48 | |
55 | |
49 | # called at init time, mostly sets {send} |
56 | # called at init time, mostly sets {send} |
50 | sub transport_reset { |
57 | sub transport_reset { |
… | |
… | |
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 $self->{connect_to}; |
|
|
93 | |
|
|
94 | AE::log 9 => "@reason"; |
86 | } |
95 | } |
87 | |
96 | |
88 | # called after handshake was successful |
97 | # called after handshake was successful |
89 | sub transport_connect { |
98 | sub transport_connect { |
90 | my ($self, $transport) = @_; |
99 | my ($self, $transport) = @_; |
91 | |
100 | |
92 | delete $self->{trial}; |
101 | delete $self->{trial}; |
93 | |
102 | |
94 | $self->transport_error (transport_error => "switched connections") |
103 | $self->transport_error (transport_error => $self->{id}, "switched connections") |
95 | if $self->{transport}; |
104 | if $self->{transport}; |
96 | |
105 | |
97 | delete $self->{connect_addr}; |
|
|
98 | delete $self->{connect_w}; |
106 | delete $self->{connect_w}; |
99 | delete $self->{connect_to}; |
107 | delete $self->{connect_to}; |
100 | |
108 | |
101 | $self->{transport} = $transport; |
109 | $self->{transport} = $transport; |
102 | |
110 | |
103 | my $transport_send = $transport->can ("send"); |
111 | my $transport_send = $transport->{send}; |
104 | |
112 | |
105 | $self->{send} = sub { |
113 | AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1); |
106 | $transport_send->($transport, $_[0]); |
114 | |
|
|
115 | $self->{send} = $transport_send; |
|
|
116 | |
|
|
117 | $transport_send->($_) |
|
|
118 | for @{ delete $self->{queue} || [] }; |
|
|
119 | } |
|
|
120 | |
|
|
121 | sub connect { |
|
|
122 | my ($self) = @_; |
|
|
123 | |
|
|
124 | return if $self->{transport}; |
|
|
125 | return if $self->{connect_w}; |
|
|
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 | |
|
|
131 | Scalar::Util::weaken $self; |
|
|
132 | |
|
|
133 | $self->{connect_to} ||= AE::timer $AnyEvent::MP::Kernel::CONFIG->{connect_interval}, 0, sub { |
|
|
134 | $self->transport_error (transport_error => $self->{id}, "connect timeout"); |
107 | }; |
135 | }; |
108 | |
136 | |
109 | AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1); |
137 | # maybe @$addresses? |
|
|
138 | my $addresses = $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}}; |
110 | |
139 | |
111 | $transport->send ($_) |
140 | if ($addresses) { |
112 | for @{ delete $self->{queue} || [] }; |
141 | $self->connect_to ($addresses); |
|
|
142 | } else { |
|
|
143 | # on global nodes, all bets are off now - we either know the node, or we don't |
|
|
144 | if ($AnyEvent::MP::Kernel::GLOBAL) { |
|
|
145 | $self->transport_error (transport_error => $self->{id}, "no known address"); |
|
|
146 | } else { |
|
|
147 | AnyEvent::MP::Kernel::g_find ($self->{id}); |
|
|
148 | } |
|
|
149 | } |
113 | } |
150 | } |
114 | |
151 | |
115 | sub connect { |
152 | sub connect_to { |
116 | my ($self, @addresses) = @_; |
153 | my ($self, $addresses) = @_; |
117 | |
154 | |
118 | return if $self->{transport}; |
155 | return if $self->{transport}; |
|
|
156 | return if $self->{connect_w}; |
119 | |
157 | |
120 | Scalar::Util::weaken $self; |
158 | unless (@$addresses) { |
121 | |
|
|
122 | my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; |
|
|
123 | |
|
|
124 | $self->{connect_to} ||= AE::timer $monitor, 0, sub { |
|
|
125 | $self->transport_error (transport_error => $self->{id}, "unable to connect"); |
159 | $self->transport_error (transport_error => $self->{id}, "no known address"); |
126 | }; |
|
|
127 | |
|
|
128 | return unless @addresses; |
|
|
129 | |
|
|
130 | if ($self->{connect_w}) { |
|
|
131 | # sometimes we get told about new addresses after we started to connect |
|
|
132 | unshift @{$self->{connect_addr}}, @addresses; |
|
|
133 | return; |
160 | return; |
134 | } |
161 | } |
135 | |
162 | |
136 | $self->{connect_addr} = \@addresses; # a bit weird, but efficient |
|
|
137 | |
|
|
138 | $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]"); |
163 | AE::log 9 => "connecting to $self->{id} with [@$addresses]"; |
139 | |
164 | |
|
|
165 | my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; |
140 | my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; |
166 | my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; |
141 | |
167 | |
142 | $interval = ($monitor - $interval) / @addresses |
168 | $interval = ($monitor - $interval) / @$addresses |
143 | if ($monitor - $interval) / @addresses < $interval; |
169 | if ($monitor - $interval) / @$addresses < $interval; |
144 | |
170 | |
145 | $interval = 0.4 if $interval < 0.4; |
171 | $interval = 0.4 if $interval < 0.4; |
146 | |
172 | |
147 | my @endpoints; |
173 | my @endpoints = reverse @$addresses; |
148 | |
174 | |
149 | $self->{connect_w} = AE::timer 0.050 * rand, $interval * (0.9 + 0.1 * rand), sub { |
175 | $self->{connect_w} = AE::timer 0, $interval * (0.9 + 0.1 * rand), sub { |
150 | @endpoints = @addresses |
|
|
151 | unless @endpoints; |
|
|
152 | |
|
|
153 | my $endpoint = shift @endpoints; |
176 | my $endpoint = pop @endpoints; |
154 | |
177 | |
155 | $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint"); |
178 | AE::log 9 => "connecting to $self->{id} at $endpoint"; |
156 | |
179 | |
157 | $self->{trial}{$endpoint} ||= do { |
180 | $self->{trial}{$endpoint} ||= do { |
|
|
181 | use Carp;AnyEvent::Socket::parse_hostport $endpoint or Carp::confess "not a reslved blabla\n";#d# |
158 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
182 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
159 | or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference."); |
183 | or return AE::log critical => "$self->{id}: '$endpoint' is not a resolved node reference."; |
160 | |
184 | |
161 | AnyEvent::MP::Transport::mp_connect |
185 | AnyEvent::MP::Transport::mp_connect |
162 | $host, $port, |
186 | $host, $port, |
163 | sub { delete $self->{trial}{$endpoint} }, |
187 | sub { delete $self->{trial}{$endpoint} }, |
164 | }; |
188 | }; |
… | |
… | |
166 | } |
190 | } |
167 | |
191 | |
168 | sub kill { |
192 | sub kill { |
169 | my ($self, $port, @reason) = @_; |
193 | my ($self, $port, @reason) = @_; |
170 | |
194 | |
171 | $self->send (["", kil => $port, @reason]); |
195 | $self->{send} (["", kil1 => $port, @reason]); |
172 | } |
196 | } |
173 | |
197 | |
174 | sub monitor { |
198 | sub monitor { |
175 | my ($self, $portid, $cb) = @_; |
199 | my ($self, $portid, $cb) = @_; |
176 | |
200 | |
… | |
… | |
194 | $self->send (["", mon0 => $portid]); |
218 | $self->send (["", mon0 => $portid]); |
195 | delete $self->{monitor}{$portid}; |
219 | delete $self->{monitor}{$portid}; |
196 | } |
220 | } |
197 | } |
221 | } |
198 | |
222 | |
199 | # used for direct slave connections as well |
|
|
200 | package AnyEvent::MP::Node::Direct; |
|
|
201 | |
|
|
202 | use base "AnyEvent::MP::Node::External"; |
|
|
203 | |
|
|
204 | package AnyEvent::MP::Node::Self; |
223 | package AnyEvent::MP::Node::Self; # the local node |
205 | |
224 | |
206 | use base "AnyEvent::MP::Node"; |
225 | use base "AnyEvent::MP::Node"; |
207 | |
226 | |
208 | sub connect { |
227 | sub connect { |
209 | # we are trivially connected |
228 | # we are trivially connected |
210 | } |
229 | } |
211 | |
230 | |
212 | # delay every so often to avoid recursion, also used to delay after spawn |
231 | # delay every so often to avoid recursion, also used to delay after spawn |
213 | our $DELAY; |
232 | our $DELAY = -50; |
214 | our @DELAY; |
233 | our @DELAY; |
215 | our $DELAY_W; |
234 | our $DELAY_W; |
216 | |
235 | |
217 | sub _send_delayed { |
236 | our $send_delayed = sub { |
218 | local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE{""}; |
237 | $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE; |
219 | (shift @DELAY)->() |
238 | (shift @DELAY)->() |
220 | while @DELAY; |
239 | while @DELAY; |
221 | undef $DELAY_W; |
240 | undef $DELAY_W; |
222 | $DELAY = -50; |
241 | $DELAY = -50; |
223 | } |
242 | }; |
224 | |
243 | |
225 | sub transport_reset { |
244 | sub transport_reset { |
226 | my ($self) = @_; |
245 | my ($self) = @_; |
227 | |
246 | |
228 | Scalar::Util::weaken $self; |
247 | Scalar::Util::weaken $self; |
229 | |
248 | |
230 | $self->{send} = sub { |
249 | $self->{send} = sub { |
231 | if ($DELAY++ >= 0) { |
250 | if (++$DELAY > 0) { |
232 | my $msg = $_[0]; |
251 | my $msg = $_[0]; |
233 | push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) }; |
252 | push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) }; |
234 | $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; |
253 | $DELAY_W ||= AE::timer 0, 0, $send_delayed; |
235 | return; |
254 | return; |
236 | } |
255 | } |
237 | |
256 | |
238 | local $AnyEvent::MP::Kernel::SRCNODE = $self; |
257 | local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE; |
239 | AnyEvent::MP::Kernel::_inject (@{ $_[0] }); |
258 | AnyEvent::MP::Kernel::_inject (@{ $_[0] }); |
240 | }; |
259 | }; |
241 | } |
260 | } |
242 | |
261 | |
243 | sub transport_connect { |
262 | sub transport_connect { |
244 | my ($self, $tp) = @_; |
263 | my ($self, $tp) = @_; |
245 | |
264 | |
246 | $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); |
265 | AE::log 9 => "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"; |
247 | } |
266 | } |
248 | |
267 | |
249 | sub kill { |
268 | sub kill { |
250 | my ($self, $port, @reason) = @_; |
269 | my (undef, @args) = @_; |
251 | |
270 | |
252 | my $delay_cb = sub { |
271 | # we _always_ delay kil's, to avoid calling mon callbacks |
253 | delete $AnyEvent::MP::Kernel::PORT{$port}; |
272 | # from anything but the event loop context. |
254 | delete $AnyEvent::MP::Kernel::PORT_DATA{$port}; |
273 | $DELAY = 1; |
255 | |
274 | push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) }; |
256 | my $mon = delete $AnyEvent::MP::Kernel::LMON{$port} |
275 | $DELAY_W ||= AE::timer 0, 0, $send_delayed; |
257 | or !@reason |
|
|
258 | or $AnyEvent::MP::Kernel::WARN->(8, "unmonitored local port $port died with reason: @reason"); |
|
|
259 | |
|
|
260 | $_->(@reason) for values %$mon; |
|
|
261 | }; |
|
|
262 | |
|
|
263 | $DELAY_W ? push @DELAY, $delay_cb : &$delay_cb; |
|
|
264 | } |
276 | } |
265 | |
277 | |
266 | sub monitor { |
278 | sub monitor { |
267 | my ($self, $portid, $cb) = @_; |
279 | # maybe always delay, too? |
268 | |
280 | if ($DELAY_W) { |
269 | my $delay_cb = sub { |
281 | my @args = @_; |
270 | return $cb->(no_such_port => "cannot monitor nonexistent port", "$self->{id}#$portid") |
282 | push @DELAY, sub { AnyEvent::MP::Kernel::_monitor (@args) }; |
271 | unless exists $AnyEvent::MP::Kernel::PORT{$portid}; |
283 | return; |
272 | |
|
|
273 | $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb; |
|
|
274 | }; |
284 | } |
275 | |
285 | &AnyEvent::MP::Kernel::_monitor; |
276 | $DELAY_W ? push @DELAY, $delay_cb : &$delay_cb; |
|
|
277 | } |
286 | } |
278 | |
287 | |
279 | sub unmonitor { |
288 | sub unmonitor { |
280 | my ($self, $portid, $cb) = @_; |
289 | # no need to always delay |
281 | |
290 | if ($DELAY_W) { |
282 | my $delay_cb = sub { |
291 | my @args = @_; |
283 | delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0}; |
292 | push @DELAY, sub { AnyEvent::MP::Kernel::_unmonitor (@args) }; |
|
|
293 | return; |
284 | }; |
294 | } |
285 | |
295 | |
286 | $DELAY_W ? push @DELAY, $delay_cb : &$delay_cb; |
296 | &AnyEvent::MP::Kernel::_unmonitor; |
287 | } |
297 | } |
288 | |
298 | |
289 | =head1 SEE ALSO |
299 | =head1 SEE ALSO |
290 | |
300 | |
291 | L<AnyEvent::MP>. |
301 | L<AnyEvent::MP>. |