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 1.32 by root, Sun Aug 30 09:24:09 2009 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::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_w}; 96 delete $self->{connect_w};
98 delete $self->{connect_to}; 97 delete $self->{connect_to};
99 98
100 $self->{transport} = $transport; 99 $self->{transport} = $transport;
101 100
102 my $transport_send = $transport->can ("send"); 101 my $transport_send = $transport->{send};
103
104 $self->{send} = sub {
105 $transport_send->($transport, $_[0]);
106 };
107 102
108 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1); 103 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
109 104
105 $self->{send} = $transport_send;
106
110 $transport->send ($_) 107 $transport_send->($_)
111 for @{ delete $self->{queue} || [] }; 108 for @{ delete $self->{queue} || [] };
112} 109}
113 110
114sub connect { 111sub connect {
115 my ($self, @addresses) = @_; 112 my ($self) = @_;
116 113
117 return if $self->{transport}; 114 return if $self->{transport};
115 return if $self->{connect_w};
118 116
119 Scalar::Util::weaken $self; 117 Scalar::Util::weaken $self;
120 118
121 $self->{connect_to} ||= AE::timer 119 $self->{connect_to} ||= AE::timer $AnyEvent::MP::Kernel::CONFIG->{connect_interval}, 0, sub {
122 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
123 0,
124 sub {
125 $self->transport_error (transport_error => $self->{id}, "unable to connect"); 120 $self->transport_error (transport_error => $self->{id}, "unable to connect");
121 };
122
123 # maybe @$addresses?
124 my $addresses = $AnyEvent::MP::Kernel::GLOBAL_DB{"'l"}{$self->{id}};
125
126 if ($addresses) {
127 $self->connect_to ($addresses);
128 } else {
129 # on global nodes, all bets are off now - we either know the node, or we don't
130 unless ($AnyEvent::MP::Kernel::GLOBAL) {
131 AnyEvent::MP::Kernel::g_find ($self->{id});
132 }
133 }
134}
135
136sub connect_to {
137 my ($self, $addresses) = @_;
138
139 return if $self->{transport};
140 return if $self->{connect_w};
141
142 return unless @$addresses;
143
144 AE::log 9 => "connecting to $self->{id} with [@$addresses]";
145
146 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
147 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval};
148
149 $interval = ($monitor - $interval) / @$addresses
150 if ($monitor - $interval) / @$addresses < $interval;
151
152 $interval = 0.4 if $interval < 0.4;
153
154 my @endpoints = reverse @$addresses;
155
156 $self->{connect_w} = AE::timer 0, $interval * (0.9 + 0.1 * rand), sub {
157 my $endpoint = pop @endpoints;
158
159 AE::log 9 => "connecting to $self->{id} at $endpoint";
160
161 $self->{trial}{$endpoint} ||= do {
162 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
163 or return AE::log critical => "$self->{id}: '$endpoint' is not a resolved node reference.";
164
165 AnyEvent::MP::Transport::mp_connect
166 $host, $port,
167 sub { delete $self->{trial}{$endpoint} },
126 }; 168 };
127
128 return unless @addresses;
129
130 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]");
131
132 unless ($self->{connect_w}) {
133 my @endpoints;
134
135 $self->{connect_w} = AE::timer
136 rand,
137 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
138 sub {
139 @endpoints = @addresses
140 unless @endpoints;
141
142 my $endpoint = shift @endpoints;
143
144 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint");
145
146 $self->{trial}{$endpoint} ||= do {
147 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
148 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference.");
149
150 AnyEvent::MP::Transport::mp_connect
151 $host, $port,
152 sub { delete $self->{trial}{$endpoint} },
153 };
154 }
155 ;
156 } 169 };
157} 170}
158 171
159sub kill { 172sub kill {
160 my ($self, $port, @reason) = @_; 173 my ($self, $port, @reason) = @_;
161 174
162 $self->send (["", kil => $port, @reason]); 175 $self->{send} (["", kil => $port, @reason]);
163} 176}
164 177
165sub monitor { 178sub monitor {
166 my ($self, $portid, $cb) = @_; 179 my ($self, $portid, $cb) = @_;
167 180
… …
185 $self->send (["", mon0 => $portid]); 198 $self->send (["", mon0 => $portid]);
186 delete $self->{monitor}{$portid}; 199 delete $self->{monitor}{$portid};
187 } 200 }
188} 201}
189 202
190# used for direct slave connections as well
191package AnyEvent::MP::Node::Direct;
192
193use base "AnyEvent::MP::Node::External";
194
195package AnyEvent::MP::Node::Self; 203package AnyEvent::MP::Node::Self; # the local node
196 204
197use base "AnyEvent::MP::Node"; 205use base "AnyEvent::MP::Node";
198 206
199sub connect { 207sub connect {
200 # we are trivially connected 208 # we are trivially connected
201} 209}
202 210
211# delay every so often to avoid recursion, also used to delay after spawn
212our $DELAY = -50;
213our @DELAY;
214our $DELAY_W;
215
216our $send_delayed = sub {
217 $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
218 (shift @DELAY)->()
219 while @DELAY;
220 undef $DELAY_W;
221 $DELAY = -50;
222};
223
203sub transport_reset { 224sub transport_reset {
204 my ($self) = @_; 225 my ($self) = @_;
205 226
206 Scalar::Util::weaken $self; 227 Scalar::Util::weaken $self;
207 228
208 $self->{send} = sub { 229 $self->{send} = sub {
230 if (++$DELAY > 0) {
231 my $msg = $_[0];
232 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) };
233 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
234 return;
235 }
236
209 local $AnyEvent::MP::Kernel::SRCNODE = $self; 237 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
210 AnyEvent::MP::Kernel::_inject (@{ $_[0] }); 238 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
211 }; 239 };
212} 240}
213 241
214sub transport_connect { 242sub transport_connect {
215 my ($self, $tp) = @_; 243 my ($self, $tp) = @_;
216 244
217 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); 245 AE::log 9 => "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})";
218} 246}
219 247
220sub kill { 248sub kill {
221 my ($self, $port, @reason) = @_; 249 my (undef, @args) = @_;
222 250
223 delete $AnyEvent::MP::Kernel::PORT{$port}; 251 # we _always_ delay kil's, to avoid calling mon callbacks
224 delete $AnyEvent::MP::Kernel::PORT_DATA{$port}; 252 # from anything but the event loop context.
225 253 $DELAY = 1;
226 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port} 254 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) };
227 or !@reason 255 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
228 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
229
230 $_->(@reason) for values %$mon;
231} 256}
232 257
233sub monitor { 258sub monitor {
234 my ($self, $portid, $cb) = @_; 259 # maybe always delay, too?
235 260 if ($DELAY_W) {
236 return $cb->(no_such_port => "cannot monitor nonexistent port") 261 my @args = @_;
237 unless exists $AnyEvent::MP::Kernel::PORT{$portid}; 262 push @DELAY, sub { AnyEvent::MP::Kernel::_monitor (@args) };
238 263 return;
239 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb; 264 }
265 &AnyEvent::MP::Kernel::_monitor;
240} 266}
241 267
242sub unmonitor { 268sub unmonitor {
243 my ($self, $portid, $cb) = @_; 269 # no need to always delay
270 if ($DELAY_W) {
271 my @args = @_;
272 push @DELAY, sub { AnyEvent::MP::Kernel::_unmonitor (@args) };
273 return;
274 }
244 275
245 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0}; 276 &AnyEvent::MP::Kernel::_unmonitor;
246} 277}
247 278
248=head1 SEE ALSO 279=head1 SEE ALSO
249 280
250L<AnyEvent::MP>. 281L<AnyEvent::MP>.

Diff Legend

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