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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.56 by root, Thu Mar 1 18:11:56 2012 UTC vs.
Revision 1.69 by root, Sun Aug 28 14:49:44 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
40#d# only needed for bad global code at the moment
41sub transport_error {
42}
43
44sub send { 47sub send {
45 &{ shift->{send} } 48 &{ shift->{send} }
46} 49}
47 50
48# nodes reachable via the network 51# nodes reachable via the network
49package AnyEvent::MP::Node::Remote; 52package AnyEvent::MP::Node::Remote; # a remote node
50 53
51use base "AnyEvent::MP::Node"; 54use base "AnyEvent::MP::Node";
52 55
53# called at init time, mostly sets {send} 56# called at init time, mostly sets {send}
54sub transport_reset { 57sub transport_reset {
… …
82 } 85 }
83 86
84 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason) 87 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
85 unless $no_transport; 88 unless $no_transport;
86 89
87 # if we are here and are idle, we nuke ourselves 90 # we weaken the node reference, so it can go away if unused
88 delete $AnyEvent::MP::Kernel::NODE{$self->{id}} 91 Scalar::Util::weaken $AnyEvent::MP::Kernel::NODE{$self->{id}}
89 unless $self->{transport} || $self->{connect_to}; 92 unless $self->{connect_to};
93
94 AE::log 9 => "@reason";
90} 95}
91 96
92# called after handshake was successful 97# called after handshake was successful
93sub transport_connect { 98sub transport_connect {
94 my ($self, $transport) = @_; 99 my ($self, $transport) = @_;
… …
96 delete $self->{trial}; 101 delete $self->{trial};
97 102
98 $self->transport_error (transport_error => $self->{id}, "switched connections") 103 $self->transport_error (transport_error => $self->{id}, "switched connections")
99 if $self->{transport}; 104 if $self->{transport};
100 105
101 delete $self->{connect_addr};
102 delete $self->{connect_w}; 106 delete $self->{connect_w};
103 delete $self->{connect_to}; 107 delete $self->{connect_to};
104 108
105 $self->{transport} = $transport; 109 $self->{transport} = $transport;
106 110
… …
118 my ($self) = @_; 122 my ($self) = @_;
119 123
120 return if $self->{transport}; 124 return if $self->{transport};
121 return if $self->{connect_w}; 125 return if $self->{connect_w};
122 126
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
123 Scalar::Util::weaken $self; 131 Scalar::Util::weaken $self;
124 132
125 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; 133 $self->{connect_to} ||= AE::timer $AnyEvent::MP::Kernel::CONFIG->{connect_interval}, 0, sub {
126
127 $self->{connect_to} ||= AE::timer $monitor, 0, sub {
128 $self->transport_error (transport_error => $self->{id}, "unable to connect"); 134 $self->transport_error (transport_error => $self->{id}, "connect timeout");
129 }; 135 };
130 136
131 # maybe @$addresses? 137 # maybe @$addresses?
132 my @addresses = @{ $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}} }; 138 my $addresses = $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}};
133 139
134 unless (@addresses) { 140 if ($addresses) {
141 $self->connect_to ($addresses);
142 } else {
135 # 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
136 unless ($AnyEvent::MP::Kernel::GLOBAL) { 144 if ($AnyEvent::MP::Kernel::GLOBAL) {
137 $self->{connect_w} = AnyEvent::MP::Kernel::global_req (g_find => $self->{id}); 145 $self->transport_error (transport_error => $self->{id}, "no known address");
146 } else {
147 AnyEvent::MP::Kernel::g_find ($self->{id});
138 } 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");
139 return; 160 return;
140 } 161 }
141 162
142 $self->{connect_addr} = \@addresses; # a bit weird, but efficient
143
144 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]"); 163 AE::log 9 => "connecting to $self->{id} with [@$addresses]";
145 164
165 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
146 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; 166 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval};
147 167
148 $interval = ($monitor - $interval) / @addresses 168 $interval = ($monitor - $interval) / @$addresses
149 if ($monitor - $interval) / @addresses < $interval; 169 if ($monitor - $interval) / @$addresses < $interval;
150 170
151 $interval = 0.4 if $interval < 0.4; 171 $interval = 0.4 if $interval < 0.4;
152 172
153 my @endpoints; 173 my @endpoints = reverse @$addresses;
154 174
155 $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 {
156 @endpoints = @addresses
157 unless @endpoints;
158
159 my $endpoint = shift @endpoints; 176 my $endpoint = pop @endpoints
177 or return;
160 178
161 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint"); 179 AE::log 9 => "connecting to $self->{id} at $endpoint";
162 180
163 $self->{trial}{$endpoint} ||= do { 181 $self->{trial}{$endpoint} ||= do {
164 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 182 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
165 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.";
166 184
167 AnyEvent::MP::Transport::mp_connect 185 AnyEvent::MP::Transport::mp_connect
168 $host, $port, 186 $host, $port,
169 sub { delete $self->{trial}{$endpoint} }, 187 sub { delete $self->{trial}{$endpoint} },
170 }; 188 };
… …
172} 190}
173 191
174sub kill { 192sub kill {
175 my ($self, $port, @reason) = @_; 193 my ($self, $port, @reason) = @_;
176 194
177 $self->{send} (["", kil => $port, @reason]); 195 $self->{send} (["", kil1 => $port, @reason]);
178} 196}
179 197
180sub monitor { 198sub monitor {
181 my ($self, $portid, $cb) = @_; 199 my ($self, $portid, $cb) = @_;
182 200
… …
200 $self->send (["", mon0 => $portid]); 218 $self->send (["", mon0 => $portid]);
201 delete $self->{monitor}{$portid}; 219 delete $self->{monitor}{$portid};
202 } 220 }
203} 221}
204 222
205package AnyEvent::MP::Node::Self; 223package AnyEvent::MP::Node::Self; # the local node
206 224
207use base "AnyEvent::MP::Node"; 225use base "AnyEvent::MP::Node";
208 226
209sub connect { 227sub connect {
210 # we are trivially connected 228 # we are trivially connected
… …
213# 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
214our $DELAY = -50; 232our $DELAY = -50;
215our @DELAY; 233our @DELAY;
216our $DELAY_W; 234our $DELAY_W;
217 235
218sub _send_delayed { 236our $send_delayed = sub {
219 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE{""}; 237 $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
220 (shift @DELAY)->() 238 (shift @DELAY)->()
221 while @DELAY; 239 while @DELAY;
222 undef $DELAY_W; 240 undef $DELAY_W;
223 $DELAY = -50; 241 $DELAY = -50;
224} 242};
225 243
226sub transport_reset { 244sub transport_reset {
227 my ($self) = @_; 245 my ($self) = @_;
228 246
229 Scalar::Util::weaken $self; 247 Scalar::Util::weaken $self;
230 248
231 $self->{send} = sub { 249 $self->{send} = sub {
232 if ($DELAY++ >= 0) { 250 if (++$DELAY > 0) {
233 my $msg = $_[0]; 251 my $msg = $_[0];
234 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) }; 252 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) };
235 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 253 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
236 return; 254 return;
237 } 255 }
238 256
239 local $AnyEvent::MP::Kernel::SRCNODE = $self; 257 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
240 AnyEvent::MP::Kernel::_inject (@{ $_[0] }); 258 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
241 }; 259 };
242} 260}
243 261
244sub transport_connect { 262sub transport_connect {
245 my ($self, $tp) = @_; 263 my ($self, $tp) = @_;
246 264
247 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); 265 AE::log 9 => "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})";
248} 266}
249 267
250sub kill { 268sub kill {
251 my (undef, @args) = @_; 269 my (undef, @args) = @_;
252 270
253 # we _always_ delay kil's, to avoid calling mon callbacks 271 # we _always_ delay kil's, to avoid calling mon callbacks
254 # from anything but the event loop context. 272 # from anything but the event loop context.
255 $DELAY = 1; 273 $DELAY = 1;
256 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) }; 274 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) };
257 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 275 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
258} 276}
259 277
260sub monitor { 278sub monitor {
261 # maybe always delay, too? 279 # maybe always delay, too?
262 if ($DELAY_W) { 280 if ($DELAY_W) {

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