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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.47 by root, Sat Nov 28 12:40:22 2009 UTC vs.
Revision 1.64 by root, Fri Mar 23 21:16:25 2012 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 {
… …
40sub send { 39sub send {
41 &{ shift->{send} } 40 &{ shift->{send} }
42} 41}
43 42
44# nodes reachable via the network 43# nodes reachable via the network
45package AnyEvent::MP::Node::External; 44package AnyEvent::MP::Node::Remote; # a remote node
46 45
47use base "AnyEvent::MP::Node"; 46use base "AnyEvent::MP::Node";
48 47
49# called at init time, mostly sets {send} 48# called at init time, mostly sets {send}
50sub transport_reset { 49sub transport_reset {
… …
89sub transport_connect { 88sub transport_connect {
90 my ($self, $transport) = @_; 89 my ($self, $transport) = @_;
91 90
92 delete $self->{trial}; 91 delete $self->{trial};
93 92
94 $self->transport_error (transport_error => "switched connections") 93 $self->transport_error (transport_error => $self->{id}, "switched connections")
95 if $self->{transport}; 94 if $self->{transport};
96 95
97 delete $self->{connect_addr};
98 delete $self->{connect_w}; 96 delete $self->{connect_w};
99 delete $self->{connect_to}; 97 delete $self->{connect_to};
100 98
101 $self->{transport} = $transport; 99 $self->{transport} = $transport;
102 100
103 my $transport_send = $transport->can ("send"); 101 my $transport_send = $transport->{send};
104 102
105 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1); 103 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
106 104
107 $self->{send} = sub { 105 $self->{send} = $transport_send;
108 $transport_send->($transport, $_[0]);
109 };
110 106
111 $transport->send ($_) 107 $transport_send->($_)
112 for @{ delete $self->{queue} || [] }; 108 for @{ delete $self->{queue} || [] };
113} 109}
114 110
115sub connect { 111sub connect {
116 my ($self, @addresses) = @_; 112 my ($self) = @_;
117 113
118 return if $self->{transport}; 114 return if $self->{transport};
115 return if $self->{connect_w};
119 116
120 Scalar::Util::weaken $self; 117 Scalar::Util::weaken $self;
118 use Carp;Carp::cluck;#d#
121 119
122 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; 120 $self->{connect_to} ||= AE::timer $AnyEvent::MP::Kernel::CONFIG->{connect_interval}, 0, sub {
123
124 $self->{connect_to} ||= AE::timer $monitor, 0, sub {
125 $self->transport_error (transport_error => $self->{id}, "unable to connect"); 121 $self->transport_error (transport_error => $self->{id}, "unable to connect");
126 }; 122 };
127 123
124 # maybe @$addresses?
125 my $addresses = $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}};
126
127 if ($addresses) {
128 $self->connect_to ($addresses);
129 } else {
130 # on global nodes, all bets are off now - we either know the node, or we don't
131 unless ($AnyEvent::MP::Kernel::GLOBAL) {
132 AnyEvent::MP::Kernel::g_find ($self->{id});
133 }
134 }
135}
136
137sub connect_to {
138 my ($self, $addresses) = @_;
139
140 return if $self->{transport};
141 return if $self->{connect_w};
142
128 return unless @addresses; 143 return unless @$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;
134 } 144
135
136 $self->{connect_addr} = \@addresses; # a bit weird, but efficient
137
138 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]"); 145 AE::log 9 => "connecting to $self->{id} with [@$addresses]";
139 146
147 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
140 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; 148 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval};
141 149
142 $interval = ($monitor - $interval) / @addresses 150 $interval = ($monitor - $interval) / @$addresses
143 if ($monitor - $interval) / @addresses < $interval; 151 if ($monitor - $interval) / @$addresses < $interval;
144 152
145 $interval = 0.4 if $interval < 0.4; 153 $interval = 0.4 if $interval < 0.4;
146 154
147 my @endpoints; 155 my @endpoints = reverse @$addresses;
148 156
149 $self->{connect_w} = AE::timer 0.050 * rand, $interval * (0.9 + 0.1 * rand), sub { 157 $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; 158 my $endpoint = pop @endpoints;
154 159
155 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint"); 160 AE::log 9 => "connecting to $self->{id} at $endpoint";
156 161
157 $self->{trial}{$endpoint} ||= do { 162 $self->{trial}{$endpoint} ||= do {
158 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 163 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
159 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference."); 164 or return AE::log critical => "$self->{id}: '$endpoint' is not a resolved node reference.";
160 165
161 AnyEvent::MP::Transport::mp_connect 166 AnyEvent::MP::Transport::mp_connect
162 $host, $port, 167 $host, $port,
163 sub { delete $self->{trial}{$endpoint} }, 168 sub { delete $self->{trial}{$endpoint} },
164 }; 169 };
… …
166} 171}
167 172
168sub kill { 173sub kill {
169 my ($self, $port, @reason) = @_; 174 my ($self, $port, @reason) = @_;
170 175
171 $self->send (["", kil => $port, @reason]); 176 $self->{send} (["", kil => $port, @reason]);
172} 177}
173 178
174sub monitor { 179sub monitor {
175 my ($self, $portid, $cb) = @_; 180 my ($self, $portid, $cb) = @_;
176 181
… …
194 $self->send (["", mon0 => $portid]); 199 $self->send (["", mon0 => $portid]);
195 delete $self->{monitor}{$portid}; 200 delete $self->{monitor}{$portid};
196 } 201 }
197} 202}
198 203
199# used for direct slave connections as well
200package AnyEvent::MP::Node::Direct;
201
202use base "AnyEvent::MP::Node::External";
203
204package AnyEvent::MP::Node::Self; 204package AnyEvent::MP::Node::Self; # the local node
205 205
206use base "AnyEvent::MP::Node"; 206use base "AnyEvent::MP::Node";
207 207
208sub connect { 208sub connect {
209 # we are trivially connected 209 # we are trivially connected
… …
212# delay every so often to avoid recursion, also used to delay after spawn 212# delay every so often to avoid recursion, also used to delay after spawn
213our $DELAY = -50; 213our $DELAY = -50;
214our @DELAY; 214our @DELAY;
215our $DELAY_W; 215our $DELAY_W;
216 216
217sub _send_delayed { 217our $send_delayed = sub {
218 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE{""}; 218 $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
219 (shift @DELAY)->() 219 (shift @DELAY)->()
220 while @DELAY; 220 while @DELAY;
221 undef $DELAY_W; 221 undef $DELAY_W;
222 $DELAY = -50; 222 $DELAY = -50;
223} 223};
224 224
225sub transport_reset { 225sub transport_reset {
226 my ($self) = @_; 226 my ($self) = @_;
227 227
228 Scalar::Util::weaken $self; 228 Scalar::Util::weaken $self;
229 229
230 $self->{send} = sub { 230 $self->{send} = sub {
231 if ($DELAY++ >= 0) { 231 if (++$DELAY > 0) {
232 my $msg = $_[0]; 232 my $msg = $_[0];
233 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) }; 233 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) };
234 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 234 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
235 return; 235 return;
236 } 236 }
237 237
238 local $AnyEvent::MP::Kernel::SRCNODE = $self; 238 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
239 AnyEvent::MP::Kernel::_inject (@{ $_[0] }); 239 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
240 }; 240 };
241} 241}
242 242
243sub transport_connect { 243sub transport_connect {
244 my ($self, $tp) = @_; 244 my ($self, $tp) = @_;
245 245
246 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); 246 AE::log 9 => "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})";
247} 247}
248 248
249sub kill { 249sub kill {
250 my ($self, $port, @reason) = @_; 250 my (undef, @args) = @_;
251
252 my $delay_cb = sub {
253 delete $AnyEvent::MP::Kernel::PORT{$port}
254 or return; # killing nonexistent ports is O.K.
255 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
256
257 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
258 or !@reason
259 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
260
261 $_->(@reason) for values %$mon;
262 };
263 251
264 # we _always_ delay kil's, to avoid calling mon callbacks 252 # we _always_ delay kil's, to avoid calling mon callbacks
265 # from anything but the event loop context. 253 # from anything but the event loop context.
266 $DELAY = 1; 254 $DELAY = 1;
267 push @DELAY, $delay_cb; 255 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) };
268 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 256 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
269} 257}
270 258
271sub monitor { 259sub monitor {
272 my ($self, $portid, $cb) = @_; 260 # maybe always delay, too?
273 261 if ($DELAY_W) {
274 my $delay_cb = sub { 262 my @args = @_;
275 return $cb->(no_such_port => "cannot monitor nonexistent port", "$self->{id}#$portid") 263 push @DELAY, sub { AnyEvent::MP::Kernel::_monitor (@args) };
276 unless exists $AnyEvent::MP::Kernel::PORT{$portid}; 264 return;
277
278 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
279 }; 265 }
280 266 &AnyEvent::MP::Kernel::_monitor;
281 $DELAY_W ? push @DELAY, $delay_cb : &$delay_cb;
282} 267}
283 268
284sub unmonitor { 269sub unmonitor {
285 my ($self, $portid, $cb) = @_; 270 # no need to always delay
286 271 if ($DELAY_W) {
287 my $delay_cb = sub { 272 my @args = @_;
288 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0}; 273 push @DELAY, sub { AnyEvent::MP::Kernel::_unmonitor (@args) };
274 return;
289 }; 275 }
290 276
291 $DELAY_W ? push @DELAY, $delay_cb : &$delay_cb; 277 &AnyEvent::MP::Kernel::_unmonitor;
292} 278}
293 279
294=head1 SEE ALSO 280=head1 SEE ALSO
295 281
296L<AnyEvent::MP>. 282L<AnyEvent::MP>.

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