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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.58 by root, Fri Mar 2 19:21:16 2012 UTC vs.
Revision 1.68 by root, Sun Aug 28 09:39:23 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 {
… …
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) = @_;
… …
92 delete $self->{trial}; 101 delete $self->{trial};
93 102
94 $self->transport_error (transport_error => $self->{id}, "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} = $transport;
102 110
… …
114 my ($self) = @_; 122 my ($self) = @_;
115 123
116 return if $self->{transport}; 124 return if $self->{transport};
117 return if $self->{connect_w}; 125 return if $self->{connect_w};
118 126
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
119 Scalar::Util::weaken $self; 131 Scalar::Util::weaken $self;
120 132
121 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; 133 $self->{connect_to} ||= AE::timer $AnyEvent::MP::Kernel::CONFIG->{connect_interval}, 0, sub {
122
123 $self->{connect_to} ||= AE::timer $monitor, 0, sub {
124 $self->transport_error (transport_error => $self->{id}, "unable to connect"); 134 $self->transport_error (transport_error => $self->{id}, "connect timeout");
125 }; 135 };
126 136
127 # maybe @$addresses? 137 # maybe @$addresses?
128 my @addresses = @{ $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}} }; 138 my $addresses = $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}};
129 139
130 unless (@addresses) { 140 if ($addresses) {
141 $self->connect_to ($addresses);
142 } else {
131 # 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
132 unless ($AnyEvent::MP::Kernel::GLOBAL) { 144 if ($AnyEvent::MP::Kernel::GLOBAL) {
145 $self->transport_error (transport_error => $self->{id}, "no known address");
146 } else {
133 AnyEvent::MP::Kernel::g_find ($self->{id}); 147 AnyEvent::MP::Kernel::g_find ($self->{id});
134 } 148 }
149 }
150}
151
152sub connect_to {
153 my ($self, $addresses) = @_;
154
155 return if $self->{transport};
156 return if $self->{connect_w};
157
158 unless (@$addresses) {
159 $self->transport_error (transport_error => $self->{id}, "no known address");
135 return; 160 return;
136 } 161 }
137 162
138 $self->{connect_addr} = \@addresses; # a bit weird, but efficient
139
140 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]"); 163 AE::log 9 => "connecting to $self->{id} with [@$addresses]";
141 164
165 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
142 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; 166 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval};
143 167
144 $interval = ($monitor - $interval) / @addresses 168 $interval = ($monitor - $interval) / @$addresses
145 if ($monitor - $interval) / @addresses < $interval; 169 if ($monitor - $interval) / @$addresses < $interval;
146 170
147 $interval = 0.4 if $interval < 0.4; 171 $interval = 0.4 if $interval < 0.4;
148 172
149 my @endpoints; 173 my @endpoints = reverse @$addresses;
150 174
151 $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 {
152 @endpoints = @addresses
153 unless @endpoints;
154
155 my $endpoint = shift @endpoints; 176 my $endpoint = pop @endpoints
177 or return $self->transport_error (transport_error => $self->{id}, "unable to connect to any address");
156 178
157 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint"); 179 AE::log 9 => "connecting to $self->{id} at $endpoint";
158 180
159 $self->{trial}{$endpoint} ||= do { 181 $self->{trial}{$endpoint} ||= do {
160 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 182 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
161 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.";
162 184
163 AnyEvent::MP::Transport::mp_connect 185 AnyEvent::MP::Transport::mp_connect
164 $host, $port, 186 $host, $port,
165 sub { delete $self->{trial}{$endpoint} }, 187 sub { delete $self->{trial}{$endpoint} },
166 }; 188 };
… …
168} 190}
169 191
170sub kill { 192sub kill {
171 my ($self, $port, @reason) = @_; 193 my ($self, $port, @reason) = @_;
172 194
173 $self->{send} (["", kil => $port, @reason]); 195 $self->{send} (["", kil1 => $port, @reason]);
174} 196}
175 197
176sub monitor { 198sub monitor {
177 my ($self, $portid, $cb) = @_; 199 my ($self, $portid, $cb) = @_;
178 200
… …
196 $self->send (["", mon0 => $portid]); 218 $self->send (["", mon0 => $portid]);
197 delete $self->{monitor}{$portid}; 219 delete $self->{monitor}{$portid};
198 } 220 }
199} 221}
200 222
201package AnyEvent::MP::Node::Self; 223package AnyEvent::MP::Node::Self; # the local node
202 224
203use base "AnyEvent::MP::Node"; 225use base "AnyEvent::MP::Node";
204 226
205sub connect { 227sub connect {
206 # we are trivially connected 228 # we are trivially connected
… …
209# 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
210our $DELAY = -50; 232our $DELAY = -50;
211our @DELAY; 233our @DELAY;
212our $DELAY_W; 234our $DELAY_W;
213 235
214sub _send_delayed { 236our $send_delayed = sub {
215 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE{""}; 237 $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
216 (shift @DELAY)->() 238 (shift @DELAY)->()
217 while @DELAY; 239 while @DELAY;
218 undef $DELAY_W; 240 undef $DELAY_W;
219 $DELAY = -50; 241 $DELAY = -50;
220} 242};
221 243
222sub transport_reset { 244sub transport_reset {
223 my ($self) = @_; 245 my ($self) = @_;
224 246
225 Scalar::Util::weaken $self; 247 Scalar::Util::weaken $self;
226 248
227 $self->{send} = sub { 249 $self->{send} = sub {
228 if ($DELAY++ >= 0) { 250 if (++$DELAY > 0) {
229 my $msg = $_[0]; 251 my $msg = $_[0];
230 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) }; 252 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) };
231 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 253 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
232 return; 254 return;
233 } 255 }
234 256
235 local $AnyEvent::MP::Kernel::SRCNODE = $self; 257 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
236 AnyEvent::MP::Kernel::_inject (@{ $_[0] }); 258 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
237 }; 259 };
238} 260}
239 261
240sub transport_connect { 262sub transport_connect {
241 my ($self, $tp) = @_; 263 my ($self, $tp) = @_;
242 264
243 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); 265 AE::log 9 => "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})";
244} 266}
245 267
246sub kill { 268sub kill {
247 my (undef, @args) = @_; 269 my (undef, @args) = @_;
248 270
249 # we _always_ delay kil's, to avoid calling mon callbacks 271 # we _always_ delay kil's, to avoid calling mon callbacks
250 # from anything but the event loop context. 272 # from anything but the event loop context.
251 $DELAY = 1; 273 $DELAY = 1;
252 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) }; 274 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) };
253 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 275 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
254} 276}
255 277
256sub monitor { 278sub monitor {
257 # maybe always delay, too? 279 # maybe always delay, too?
258 if ($DELAY_W) { 280 if ($DELAY_W) {

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