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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.57 by root, Thu Mar 1 18:31:42 2012 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 {
… …
35 34
36sub init { 35sub init {
37 # 36 #
38} 37}
39 38
40#d# only needed for bad global code at the moment
41sub transport_error {
42}
43
44sub send { 39sub send {
45 &{ shift->{send} } 40 &{ shift->{send} }
46} 41}
47 42
48# nodes reachable via the network 43# nodes reachable via the network
49package AnyEvent::MP::Node::Remote; 44package AnyEvent::MP::Node::Remote; # a remote node
50 45
51use base "AnyEvent::MP::Node"; 46use base "AnyEvent::MP::Node";
52 47
53# called at init time, mostly sets {send} 48# called at init time, mostly sets {send}
54sub transport_reset { 49sub transport_reset {
… …
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};
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
… …
119 113
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;
118 use Carp;Carp::cluck;#d#
124 119
125 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; 120 $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"); 121 $self->transport_error (transport_error => $self->{id}, "unable to connect");
129 }; 122 };
130 123
131 # maybe @$addresses? 124 # maybe @$addresses?
132 my @addresses = @{ $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}} }; 125 my $addresses = $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}};
133 126
134 unless (@addresses) { 127 if ($addresses) {
128 $self->connect_to ($addresses);
129 } else {
135 # on global nodes, all bets are off now - we either know the node, or we don't 130 # on global nodes, all bets are off now - we either know the node, or we don't
136 unless ($AnyEvent::MP::Kernel::GLOBAL) { 131 unless ($AnyEvent::MP::Kernel::GLOBAL) {
137 AnyEvent::MP::Kernel::g_find ($self->{id}); 132 AnyEvent::MP::Kernel::g_find ($self->{id});
138 } 133 }
139 return; 134 }
135}
136
137sub connect_to {
138 my ($self, $addresses) = @_;
139
140 return if $self->{transport};
141 return if $self->{connect_w};
142
143 return unless @$addresses;
140 } 144
141
142 $self->{connect_addr} = \@addresses; # a bit weird, but efficient
143
144 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]"); 145 AE::log 9 => "connecting to $self->{id} with [@$addresses]";
145 146
147 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
146 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; 148 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval};
147 149
148 $interval = ($monitor - $interval) / @addresses 150 $interval = ($monitor - $interval) / @$addresses
149 if ($monitor - $interval) / @addresses < $interval; 151 if ($monitor - $interval) / @$addresses < $interval;
150 152
151 $interval = 0.4 if $interval < 0.4; 153 $interval = 0.4 if $interval < 0.4;
152 154
153 my @endpoints; 155 my @endpoints = reverse @$addresses;
154 156
155 $self->{connect_w} = AE::timer 0, $interval * (0.9 + 0.1 * rand), sub { 157 $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; 158 my $endpoint = pop @endpoints;
160 159
161 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint"); 160 AE::log 9 => "connecting to $self->{id} at $endpoint";
162 161
163 $self->{trial}{$endpoint} ||= do { 162 $self->{trial}{$endpoint} ||= do {
164 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 163 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
165 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.";
166 165
167 AnyEvent::MP::Transport::mp_connect 166 AnyEvent::MP::Transport::mp_connect
168 $host, $port, 167 $host, $port,
169 sub { delete $self->{trial}{$endpoint} }, 168 sub { delete $self->{trial}{$endpoint} },
170 }; 169 };
… …
200 $self->send (["", mon0 => $portid]); 199 $self->send (["", mon0 => $portid]);
201 delete $self->{monitor}{$portid}; 200 delete $self->{monitor}{$portid};
202 } 201 }
203} 202}
204 203
205package AnyEvent::MP::Node::Self; 204package AnyEvent::MP::Node::Self; # the local node
206 205
207use base "AnyEvent::MP::Node"; 206use base "AnyEvent::MP::Node";
208 207
209sub connect { 208sub connect {
210 # we are trivially connected 209 # we are trivially connected
… …
213# 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
214our $DELAY = -50; 213our $DELAY = -50;
215our @DELAY; 214our @DELAY;
216our $DELAY_W; 215our $DELAY_W;
217 216
218sub _send_delayed { 217our $send_delayed = sub {
219 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE{""}; 218 $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
220 (shift @DELAY)->() 219 (shift @DELAY)->()
221 while @DELAY; 220 while @DELAY;
222 undef $DELAY_W; 221 undef $DELAY_W;
223 $DELAY = -50; 222 $DELAY = -50;
224} 223};
225 224
226sub transport_reset { 225sub transport_reset {
227 my ($self) = @_; 226 my ($self) = @_;
228 227
229 Scalar::Util::weaken $self; 228 Scalar::Util::weaken $self;
230 229
231 $self->{send} = sub { 230 $self->{send} = sub {
232 if ($DELAY++ >= 0) { 231 if (++$DELAY > 0) {
233 my $msg = $_[0]; 232 my $msg = $_[0];
234 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) }; 233 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) };
235 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 234 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
236 return; 235 return;
237 } 236 }
238 237
239 local $AnyEvent::MP::Kernel::SRCNODE = $self; 238 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
240 AnyEvent::MP::Kernel::_inject (@{ $_[0] }); 239 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
241 }; 240 };
242} 241}
243 242
244sub transport_connect { 243sub transport_connect {
245 my ($self, $tp) = @_; 244 my ($self, $tp) = @_;
246 245
247 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); 246 AE::log 9 => "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})";
248} 247}
249 248
250sub kill { 249sub kill {
251 my (undef, @args) = @_; 250 my (undef, @args) = @_;
252 251
253 # we _always_ delay kil's, to avoid calling mon callbacks 252 # we _always_ delay kil's, to avoid calling mon callbacks
254 # from anything but the event loop context. 253 # from anything but the event loop context.
255 $DELAY = 1; 254 $DELAY = 1;
256 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) }; 255 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) };
257 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 256 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
258} 257}
259 258
260sub monitor { 259sub monitor {
261 # maybe always delay, too? 260 # maybe always delay, too?
262 if ($DELAY_W) { 261 if ($DELAY_W) {

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