… | |
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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 (); |
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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 { |
… | |
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35 | |
34 | |
36 | sub init { |
35 | sub init { |
37 | # |
36 | # |
38 | } |
37 | } |
39 | |
38 | |
40 | #d# only needed for bad global code at the moment |
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41 | sub transport_error { |
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42 | } |
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43 | |
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44 | sub send { |
39 | sub send { |
45 | &{ shift->{send} } |
40 | &{ shift->{send} } |
46 | } |
41 | } |
47 | |
42 | |
48 | # nodes reachable via the network |
43 | # nodes reachable via the network |
49 | package AnyEvent::MP::Node::Remote; |
44 | package AnyEvent::MP::Node::Remote; # a remote node |
50 | |
45 | |
51 | use base "AnyEvent::MP::Node"; |
46 | use base "AnyEvent::MP::Node"; |
52 | |
47 | |
53 | # called at init time, mostly sets {send} |
48 | # called at init time, mostly sets {send} |
54 | sub transport_reset { |
49 | sub transport_reset { |
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96 | delete $self->{trial}; |
91 | delete $self->{trial}; |
97 | |
92 | |
98 | $self->transport_error (transport_error => $self->{id}, "switched connections") |
93 | $self->transport_error (transport_error => $self->{id}, "switched connections") |
99 | if $self->{transport}; |
94 | if $self->{transport}; |
100 | |
95 | |
101 | delete $self->{connect_addr}; |
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102 | delete $self->{connect_w}; |
96 | delete $self->{connect_w}; |
103 | delete $self->{connect_to}; |
97 | delete $self->{connect_to}; |
104 | |
98 | |
105 | $self->{transport} = $transport; |
99 | $self->{transport} = $transport; |
106 | |
100 | |
… | |
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120 | return if $self->{transport}; |
114 | return if $self->{transport}; |
121 | return if $self->{connect_w}; |
115 | return if $self->{connect_w}; |
122 | |
116 | |
123 | Scalar::Util::weaken $self; |
117 | Scalar::Util::weaken $self; |
124 | |
118 | |
125 | my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; |
119 | $self->{connect_to} ||= AE::timer $AnyEvent::MP::Kernel::CONFIG->{connect_interval}, 0, sub { |
126 | |
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127 | $self->{connect_to} ||= AE::timer $monitor, 0, sub { |
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128 | $self->transport_error (transport_error => $self->{id}, "unable to connect"); |
120 | $self->transport_error (transport_error => $self->{id}, "unable to connect"); |
129 | }; |
121 | }; |
130 | |
122 | |
131 | # maybe @$addresses? |
123 | # maybe @$addresses? |
132 | my @addresses = @{ $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}} }; |
124 | my $addresses = $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}}; |
133 | |
125 | |
134 | unless (@addresses) { |
126 | if ($addresses) { |
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127 | $self->connect_to ($addresses); |
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128 | } else { |
135 | # on global nodes, all bets are off now - we either know the node, or we don't |
129 | # on global nodes, all bets are off now - we either know the node, or we don't |
136 | unless ($AnyEvent::MP::Kernel::GLOBAL) { |
130 | unless ($AnyEvent::MP::Kernel::GLOBAL) { |
137 | $self->{connect_w} = AnyEvent::MP::Kernel::global_req (g_find => $self->{id}); |
131 | AnyEvent::MP::Kernel::g_find ($self->{id}); |
138 | } |
132 | } |
139 | return; |
133 | } |
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134 | } |
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135 | |
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136 | sub connect_to { |
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137 | my ($self, $addresses) = @_; |
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138 | |
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139 | return if $self->{transport}; |
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140 | return if $self->{connect_w}; |
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141 | |
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142 | return unless @$addresses; |
140 | } |
143 | |
141 | |
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142 | $self->{connect_addr} = \@addresses; # a bit weird, but efficient |
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143 | |
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144 | $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]"); |
144 | AE::log 9 => "connecting to $self->{id} with [@$addresses]"; |
145 | |
145 | |
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146 | my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; |
146 | my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; |
147 | my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; |
147 | |
148 | |
148 | $interval = ($monitor - $interval) / @addresses |
149 | $interval = ($monitor - $interval) / @$addresses |
149 | if ($monitor - $interval) / @addresses < $interval; |
150 | if ($monitor - $interval) / @$addresses < $interval; |
150 | |
151 | |
151 | $interval = 0.4 if $interval < 0.4; |
152 | $interval = 0.4 if $interval < 0.4; |
152 | |
153 | |
153 | my @endpoints; |
154 | my @endpoints = reverse @$addresses; |
154 | |
155 | |
155 | $self->{connect_w} = AE::timer 0, $interval * (0.9 + 0.1 * rand), sub { |
156 | $self->{connect_w} = AE::timer 0, $interval * (0.9 + 0.1 * rand), sub { |
156 | @endpoints = @addresses |
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157 | unless @endpoints; |
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158 | |
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159 | my $endpoint = shift @endpoints; |
157 | my $endpoint = pop @endpoints; |
160 | |
158 | |
161 | $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint"); |
159 | AE::log 9 => "connecting to $self->{id} at $endpoint"; |
162 | |
160 | |
163 | $self->{trial}{$endpoint} ||= do { |
161 | $self->{trial}{$endpoint} ||= do { |
164 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
162 | my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint |
165 | or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference."); |
163 | or return AE::log critical => "$self->{id}: '$endpoint' is not a resolved node reference."; |
166 | |
164 | |
167 | AnyEvent::MP::Transport::mp_connect |
165 | AnyEvent::MP::Transport::mp_connect |
168 | $host, $port, |
166 | $host, $port, |
169 | sub { delete $self->{trial}{$endpoint} }, |
167 | sub { delete $self->{trial}{$endpoint} }, |
170 | }; |
168 | }; |
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200 | $self->send (["", mon0 => $portid]); |
198 | $self->send (["", mon0 => $portid]); |
201 | delete $self->{monitor}{$portid}; |
199 | delete $self->{monitor}{$portid}; |
202 | } |
200 | } |
203 | } |
201 | } |
204 | |
202 | |
205 | package AnyEvent::MP::Node::Self; |
203 | package AnyEvent::MP::Node::Self; # the local node |
206 | |
204 | |
207 | use base "AnyEvent::MP::Node"; |
205 | use base "AnyEvent::MP::Node"; |
208 | |
206 | |
209 | sub connect { |
207 | sub connect { |
210 | # we are trivially connected |
208 | # we are trivially connected |
… | |
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213 | # delay every so often to avoid recursion, also used to delay after spawn |
211 | # delay every so often to avoid recursion, also used to delay after spawn |
214 | our $DELAY = -50; |
212 | our $DELAY = -50; |
215 | our @DELAY; |
213 | our @DELAY; |
216 | our $DELAY_W; |
214 | our $DELAY_W; |
217 | |
215 | |
218 | sub _send_delayed { |
216 | our $send_delayed = sub { |
219 | local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE{""}; |
217 | $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE; |
220 | (shift @DELAY)->() |
218 | (shift @DELAY)->() |
221 | while @DELAY; |
219 | while @DELAY; |
222 | undef $DELAY_W; |
220 | undef $DELAY_W; |
223 | $DELAY = -50; |
221 | $DELAY = -50; |
224 | } |
222 | }; |
225 | |
223 | |
226 | sub transport_reset { |
224 | sub transport_reset { |
227 | my ($self) = @_; |
225 | my ($self) = @_; |
228 | |
226 | |
229 | Scalar::Util::weaken $self; |
227 | Scalar::Util::weaken $self; |
230 | |
228 | |
231 | $self->{send} = sub { |
229 | $self->{send} = sub { |
232 | if ($DELAY++ >= 0) { |
230 | if (++$DELAY > 0) { |
233 | my $msg = $_[0]; |
231 | my $msg = $_[0]; |
234 | push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) }; |
232 | push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) }; |
235 | $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; |
233 | $DELAY_W ||= AE::timer 0, 0, $send_delayed; |
236 | return; |
234 | return; |
237 | } |
235 | } |
238 | |
236 | |
239 | local $AnyEvent::MP::Kernel::SRCNODE = $self; |
237 | local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE; |
240 | AnyEvent::MP::Kernel::_inject (@{ $_[0] }); |
238 | AnyEvent::MP::Kernel::_inject (@{ $_[0] }); |
241 | }; |
239 | }; |
242 | } |
240 | } |
243 | |
241 | |
244 | sub transport_connect { |
242 | sub transport_connect { |
245 | my ($self, $tp) = @_; |
243 | my ($self, $tp) = @_; |
246 | |
244 | |
247 | $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); |
245 | AE::log 9 => "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"; |
248 | } |
246 | } |
249 | |
247 | |
250 | sub kill { |
248 | sub kill { |
251 | my (undef, @args) = @_; |
249 | my (undef, @args) = @_; |
252 | |
250 | |
253 | # we _always_ delay kil's, to avoid calling mon callbacks |
251 | # we _always_ delay kil's, to avoid calling mon callbacks |
254 | # from anything but the event loop context. |
252 | # from anything but the event loop context. |
255 | $DELAY = 1; |
253 | $DELAY = 1; |
256 | push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) }; |
254 | push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) }; |
257 | $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; |
255 | $DELAY_W ||= AE::timer 0, 0, $send_delayed; |
258 | } |
256 | } |
259 | |
257 | |
260 | sub monitor { |
258 | sub monitor { |
261 | # maybe always delay, too? |
259 | # maybe always delay, too? |
262 | if ($DELAY_W) { |
260 | if ($DELAY_W) { |