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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.38 by root, Mon Sep 7 12:04:32 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_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;
118 use Carp;Carp::cluck;#d#
120 119
121 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout}; 120 $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"); 121 $self->transport_error (transport_error => $self->{id}, "unable to connect");
125 }; 122 };
126 123
127 return unless @addresses; 124 # maybe @$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};
128 return if $self->{connect_w}; 141 return if $self->{connect_w};
129 142
143 return unless @$addresses;
144
130 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]"); 145 AE::log 9 => "connecting to $self->{id} with [@$addresses]";
131 146
147 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
132 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval}; 148 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval};
133 149
134 $interval = ($monitor - $interval) / @addresses 150 $interval = ($monitor - $interval) / @$addresses
135 if ($monitor - $interval) / @addresses < $interval; 151 if ($monitor - $interval) / @$addresses < $interval;
136 152
137 $interval = 0.4 if $interval < 0.4; 153 $interval = 0.4 if $interval < 0.4;
138 154
139 my @endpoints; 155 my @endpoints = reverse @$addresses;
140 156
141 $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 {
142 @endpoints = @addresses
143 unless @endpoints;
144
145 my $endpoint = shift @endpoints; 158 my $endpoint = pop @endpoints;
146 159
147 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint"); 160 AE::log 9 => "connecting to $self->{id} at $endpoint";
148 161
149 $self->{trial}{$endpoint} ||= do { 162 $self->{trial}{$endpoint} ||= do {
150 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 163 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
151 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.";
152 165
153 AnyEvent::MP::Transport::mp_connect 166 AnyEvent::MP::Transport::mp_connect
154 $host, $port, 167 $host, $port,
155 sub { delete $self->{trial}{$endpoint} }, 168 sub { delete $self->{trial}{$endpoint} },
156 }; 169 };
… …
158} 171}
159 172
160sub kill { 173sub kill {
161 my ($self, $port, @reason) = @_; 174 my ($self, $port, @reason) = @_;
162 175
163 $self->send (["", kil => $port, @reason]); 176 $self->{send} (["", kil => $port, @reason]);
164} 177}
165 178
166sub monitor { 179sub monitor {
167 my ($self, $portid, $cb) = @_; 180 my ($self, $portid, $cb) = @_;
168 181
… …
186 $self->send (["", mon0 => $portid]); 199 $self->send (["", mon0 => $portid]);
187 delete $self->{monitor}{$portid}; 200 delete $self->{monitor}{$portid};
188 } 201 }
189} 202}
190 203
191# used for direct slave connections as well
192package AnyEvent::MP::Node::Direct;
193
194use base "AnyEvent::MP::Node::External";
195
196package AnyEvent::MP::Node::Self; 204package AnyEvent::MP::Node::Self; # the local node
197 205
198use base "AnyEvent::MP::Node"; 206use base "AnyEvent::MP::Node";
199 207
200sub connect { 208sub connect {
201 # we are trivially connected 209 # we are trivially connected
202} 210}
203 211
204# 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
205our $DELAY; 213our $DELAY = -50;
206our @DELAY; 214our @DELAY;
207our $DELAY_W; 215our $DELAY_W;
208 216
209sub _send_delayed { 217our $send_delayed = sub {
210 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE{""}; 218 $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
211 AnyEvent::MP::Kernel::_inject (@{ shift @DELAY }) 219 (shift @DELAY)->()
212 while @DELAY; 220 while @DELAY;
213 undef $DELAY_W; 221 undef $DELAY_W;
214 $DELAY = -50; 222 $DELAY = -50;
215} 223};
216 224
217sub transport_reset { 225sub transport_reset {
218 my ($self) = @_; 226 my ($self) = @_;
219 227
220 Scalar::Util::weaken $self; 228 Scalar::Util::weaken $self;
221 229
222 $self->{send} = sub { 230 $self->{send} = sub {
223 if ($DELAY++ >= 0) { 231 if (++$DELAY > 0) {
224 push @DELAY, $_[0]; 232 my $msg = $_[0];
233 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) };
225 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed; 234 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
226 } else { 235 return;
227 local $AnyEvent::MP::Kernel::SRCNODE = $self;
228 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
229 } 236 }
237
238 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE;
239 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
230 }; 240 };
231} 241}
232 242
233sub transport_connect { 243sub transport_connect {
234 my ($self, $tp) = @_; 244 my ($self, $tp) = @_;
235 245
236 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); 246 AE::log 9 => "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})";
237} 247}
238 248
239sub kill { 249sub kill {
240 my ($self, $port, @reason) = @_; 250 my (undef, @args) = @_;
241 251
242 delete $AnyEvent::MP::Kernel::PORT{$port}; 252 # we _always_ delay kil's, to avoid calling mon callbacks
243 delete $AnyEvent::MP::Kernel::PORT_DATA{$port}; 253 # from anything but the event loop context.
244 254 $DELAY = 1;
245 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port} 255 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) };
246 or !@reason 256 $DELAY_W ||= AE::timer 0, 0, $send_delayed;
247 or $AnyEvent::MP::Kernel::WARN->(8, "unmonitored local port $port died with reason: @reason");
248
249 $_->(@reason) for values %$mon;
250} 257}
251 258
252sub monitor { 259sub monitor {
253 my ($self, $portid, $cb) = @_; 260 # maybe always delay, too?
254 261 if ($DELAY_W) {
255 return $cb->(no_such_port => "cannot monitor nonexistent port", "$self->{id}#$portid") 262 my @args = @_;
256 unless exists $AnyEvent::MP::Kernel::PORT{$portid}; 263 push @DELAY, sub { AnyEvent::MP::Kernel::_monitor (@args) };
257 264 return;
258 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb; 265 }
266 &AnyEvent::MP::Kernel::_monitor;
259} 267}
260 268
261sub unmonitor { 269sub unmonitor {
262 my ($self, $portid, $cb) = @_; 270 # no need to always delay
271 if ($DELAY_W) {
272 my @args = @_;
273 push @DELAY, sub { AnyEvent::MP::Kernel::_unmonitor (@args) };
274 return;
275 }
263 276
264 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0}; 277 &AnyEvent::MP::Kernel::_unmonitor;
265} 278}
266 279
267=head1 SEE ALSO 280=head1 SEE ALSO
268 281
269L<AnyEvent::MP>. 282L<AnyEvent::MP>.

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