ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/AnyEvent-MP/MP/Node.pm
(Generate patch)

Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.55 by root, Wed Feb 29 19:23:44 2012 UTC vs.
Revision 1.65 by root, Fri Mar 23 21:16:36 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::Remote; 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 {
… …
92 delete $self->{trial}; 91 delete $self->{trial};
93 92
94 $self->transport_error (transport_error => $self->{id}, "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
… …
116 return if $self->{transport}; 114 return if $self->{transport};
117 return if $self->{connect_w}; 115 return if $self->{connect_w};
118 116
119 Scalar::Util::weaken $self; 117 Scalar::Util::weaken $self;
120 118
121 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; 119 $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"); 120 $self->transport_error (transport_error => $self->{id}, "unable to connect");
125 }; 121 };
126 122
127 # maybe @$addresses? 123 # maybe @$addresses?
128 my @addresses = @{
129 $AnyEvent::MP::Kernel::GLOBAL_ADDR->{$self->{id}} 124 my $addresses = $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}};
130 || $AnyEvent::MP::Kernel::NODE_ADDR->{$self->{id}}
131 };
132 125
133 unless (@addresses) { 126 if ($addresses) {
127 $self->connect_to ($addresses);
128 } else {
134 # 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
135 unless ($AnyEvent::MP::Kernel::GLOBAL) { 130 unless ($AnyEvent::MP::Kernel::GLOBAL) {
136 $self->{connect_w} = AnyEvent::MP::Kernel::global_req ( 131 AnyEvent::MP::Kernel::g_find ($self->{id});
137 g_find => $self->{id},
138 sub {
139 return unless $self; # just to be sure
140 return unless @{ $_[0] };
141
142 local $AnyEvent::MP::Kernel::GLOBAL_ADDR->{$self->{id}} = $_[0]; #d# UGLY
143 delete $self->{connect_w};
144 $self->connect;
145 }
146 );
147 } 132 }
133 }
134}
148 135
149 return; 136sub connect_to {
137 my ($self, $addresses) = @_;
138
139 return if $self->{transport};
140 return if $self->{connect_w};
141
142 return unless @$addresses;
150 } 143
151
152 $self->{connect_addr} = \@addresses; # a bit weird, but efficient
153
154 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]"); 144 AE::log 9 => "connecting to $self->{id} with [@$addresses]";
155 145
146 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
156 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; 147 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval};
157 148
158 $interval = ($monitor - $interval) / @addresses 149 $interval = ($monitor - $interval) / @$addresses
159 if ($monitor - $interval) / @addresses < $interval; 150 if ($monitor - $interval) / @$addresses < $interval;
160 151
161 $interval = 0.4 if $interval < 0.4; 152 $interval = 0.4 if $interval < 0.4;
162 153
163 my @endpoints; 154 my @endpoints = reverse @$addresses;
164 155
165 $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 {
166 @endpoints = @addresses
167 unless @endpoints;
168
169 my $endpoint = shift @endpoints; 157 my $endpoint = pop @endpoints;
170 158
171 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint"); 159 AE::log 9 => "connecting to $self->{id} at $endpoint";
172 160
173 $self->{trial}{$endpoint} ||= do { 161 $self->{trial}{$endpoint} ||= do {
174 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 162 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
175 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.";
176 164
177 AnyEvent::MP::Transport::mp_connect 165 AnyEvent::MP::Transport::mp_connect
178 $host, $port, 166 $host, $port,
179 sub { delete $self->{trial}{$endpoint} }, 167 sub { delete $self->{trial}{$endpoint} },
180 }; 168 };
… …
210 $self->send (["", mon0 => $portid]); 198 $self->send (["", mon0 => $portid]);
211 delete $self->{monitor}{$portid}; 199 delete $self->{monitor}{$portid};
212 } 200 }
213} 201}
214 202
215package AnyEvent::MP::Node::Self; 203package AnyEvent::MP::Node::Self; # the local node
216 204
217use base "AnyEvent::MP::Node"; 205use base "AnyEvent::MP::Node";
218 206
219sub connect { 207sub connect {
220 # we are trivially connected 208 # we are trivially connected
… …
223# 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
224our $DELAY = -50; 212our $DELAY = -50;
225our @DELAY; 213our @DELAY;
226our $DELAY_W; 214our $DELAY_W;
227 215
228sub _send_delayed { 216our $send_delayed = sub {
229 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE{""}; 217 $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
230 (shift @DELAY)->() 218 (shift @DELAY)->()
231 while @DELAY; 219 while @DELAY;
232 undef $DELAY_W; 220 undef $DELAY_W;
233 $DELAY = -50; 221 $DELAY = -50;
234} 222};
235 223
236sub transport_reset { 224sub transport_reset {
237 my ($self) = @_; 225 my ($self) = @_;
238 226
239 Scalar::Util::weaken $self; 227 Scalar::Util::weaken $self;
240 228
241 $self->{send} = sub { 229 $self->{send} = sub {
242 if ($DELAY++ >= 0) { 230 if (++$DELAY > 0) {
243 my $msg = $_[0]; 231 my $msg = $_[0];
244 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) }; 232 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) };
245 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 233 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
246 return; 234 return;
247 } 235 }
248 236
249 local $AnyEvent::MP::Kernel::SRCNODE = $self; 237 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
250 AnyEvent::MP::Kernel::_inject (@{ $_[0] }); 238 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
251 }; 239 };
252} 240}
253 241
254sub transport_connect { 242sub transport_connect {
255 my ($self, $tp) = @_; 243 my ($self, $tp) = @_;
256 244
257 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); 245 AE::log 9 => "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})";
258} 246}
259 247
260sub kill { 248sub kill {
261 my (undef, @args) = @_; 249 my (undef, @args) = @_;
262 250
263 # we _always_ delay kil's, to avoid calling mon callbacks 251 # we _always_ delay kil's, to avoid calling mon callbacks
264 # from anything but the event loop context. 252 # from anything but the event loop context.
265 $DELAY = 1; 253 $DELAY = 1;
266 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) }; 254 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) };
267 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 255 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
268} 256}
269 257
270sub monitor { 258sub monitor {
271 # maybe always delay, too? 259 # maybe always delay, too?
272 if ($DELAY_W) { 260 if ($DELAY_W) {

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines