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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.7 by root, Tue Aug 4 14:10:51 2009 UTC vs.
Revision 1.29 by root, Fri Aug 28 00:31:14 2009 UTC

… …
18use AnyEvent::Util (); 18use AnyEvent::Util ();
19use AnyEvent::Socket (); 19use AnyEvent::Socket ();
20 20
21use AnyEvent::MP::Transport (); 21use AnyEvent::MP::Transport ();
22 22
23use base Exporter::; 23sub new {
24 my ($self, $id) = @_;
24 25
25our $VERSION = '0.0'; 26 $self = bless { id => $id }, $self;
26 27
27our $DEFAULT_PORT = "4040"; 28 $self->init;
29 $self->transport_reset;
28 30
29sub normalise_noderef($) { 31 $self
32}
33
34sub init {
35 #
36}
37
38sub send {
39 &{ shift->{send} }
40}
41
42# nodes reachable via the network
43package AnyEvent::MP::Node::External;
44
45use base "AnyEvent::MP::Node";
46
47# called at init time, mostly sets {send}
48sub transport_reset {
30 my ($noderef) = @_; 49 my ($self) = @_;
31 50
32 my $cv = AE::cv; 51 delete $self->{transport};
33 my @res;
34 52
35 $cv->begin (sub { 53 Scalar::Util::weaken $self;
36 my %seen; 54
37 my @refs; 55 $self->{send} = sub {
38 for (sort { $a->[0] <=> $b->[0] } @res) { 56 push @{$self->{queue}}, shift;
39 push @refs, $_->[1] unless $seen{$_->[1]}++ 57 $self->connect;
58 };
59
60 $self->connect
61 if $self->{autoconnect};
62}
63
64# called only after successful handshake
65sub transport_error {
66 my ($self, @reason) = @_;
67
68 my $no_transport = !$self->{transport};
69
70 delete $self->{connect_w};
71 delete $self->{connect_to};
72
73 delete $self->{queue};
74 $self->transport_reset;
75
76 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
77 unless $no_transport;
78
79 if (my $mon = delete $self->{lmon}) {
80 $_->(@reason) for map @$_, values %$mon;
81 }
82}
83
84# called after handshake was successful
85sub transport_connect {
86 my ($self, $transport) = @_;
87
88 delete $self->{trial};
89
90 $self->transport_error (transport_error => "switched connections")
91 if $self->{transport};
92
93 delete $self->{connect_w};
94 delete $self->{connect_to};
95
96 $self->{transport} = $transport;
97
98 my $transport_send = $transport->can ("send");
99
100 $self->{send} = sub {
101 $transport_send->($transport, $_[0]);
102 };
103
104 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
105
106 $transport->send ($_)
107 for @{ delete $self->{queue} || [] };
108}
109
110sub connect {
111 my ($self, @addresses) = @_;
112
113 return if $self->{transport};
114
115 Scalar::Util::weaken $self;
116
117 $self->{connect_to} ||= AE::timer
118 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
119 0,
120 sub {
121 $self->transport_error (transport_error => $self->{id}, "unable to connect");
40 } 122 };
41 shift->send (join ",", @refs);
42 });
43 123
44 $noderef = $DEFAULT_PORT unless length $noderef; 124 return unless @addresses;
45 125
46 my $idx; 126 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]");
47 for my $t (split /,/, $noderef) {
48 my $pri = ++$idx;
49
50 #TODO: this should be outside normalise_noderef and in become_public
51 if ($t =~ /^\d*$/) {
52 require POSIX;
53 my $nodename = (POSIX::uname ())[1];
54 127
55 $cv->begin; 128 unless ($self->{connect_w}) {
56 AnyEvent::Socket::resolve_sockaddr $nodename, $t || "aemp=$DEFAULT_PORT", "tcp", 0, undef, sub { 129 my @endpoints;
57 for (@_) { 130
58 my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3]; 131 $self->{connect_w} = AE::timer
59 push @res, [ 132 rand,
60 $pri += 1e-5, 133 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
61 AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service 134 sub {
62 ]; 135 @endpoints = @addresses
136 unless @endpoints;
137
138 my $endpoint = shift @endpoints;
139
140 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint");
141
142 $self->{trial}{$endpoint} ||= do {
143 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
144 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference.");
145
146 AnyEvent::MP::Transport::mp_connect
147 $host, $port,
148 sub { delete $self->{trial}{$endpoint} },
63 } 149 };
64 $cv->end;
65 };
66
67# my (undef, undef, undef, undef, @ipv4) = gethostbyname $nodename;
68#
69# for (@ipv4) {
70# push @res, [
71# $pri,
72# AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $_, $t || $DEFAULT_PORT,
73# ];
74# }
75 } else {
76 my ($host, $port) = AnyEvent::Socket::parse_hostport $t, "aemp=$DEFAULT_PORT"
77 or Carp::croak "$t: unparsable transport descriptor";
78
79 $cv->begin;
80 AnyEvent::Socket::resolve_sockaddr $host, $port, "tcp", 0, undef, sub {
81 for (@_) {
82 my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3];
83 push @res, [
84 $pri += 1e-5,
85 AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service
86 ];
87 }
88 $cv->end;
89 } 150 }
90 } 151 ;
91 }
92
93 $cv->end;
94
95 $cv
96}
97
98sub new {
99 my ($class, $noderef) = @_;
100
101 bless { noderef => $noderef }, $class
102}
103
104package AnyEvent::MP::Node::Direct;
105
106use base "AnyEvent::MP::Node";
107
108sub send {
109 my ($self, $msg) = @_;
110
111 if ($self->{transport}) {
112 $self->{transport}->send ($msg);
113 } elsif ($self->{queue}) {
114 push @{ $self->{queue} }, $msg;
115 } else {
116 $self->{queue} = [$msg];
117 $self->connect;
118 } 152 }
119} 153}
120 154
121sub kill { 155sub kill {
122 my ($self, $port, @reason) = @_; 156 my ($self, $port, @reason) = @_;
123 157
124 $self->send (["", kil => $port, @reason]); 158 $self->send (["", kil => $port, @reason]);
125
126# delete $AnyEvent::MP::Base::PORT{$port};
127
128# my $mon = delete $AnyEvent::MP::Base::LMON{$port}
129# or return;
130
131# $_->(@reason) for values %$mon;
132} 159}
133 160
134sub monitor { 161sub monitor {
135 my ($self, $portid, $cb) = @_; 162 my ($self, $portid, $cb) = @_;
136 163
137 return $cb->()
138 if $self->{failed};
139
140 my $list = $self->{lmon}{$portid} ||= []; 164 my $list = $self->{lmon}{$portid} ||= [];
141 165
142 $self->send (["", mon1 => $portid]) 166 $self->send (["", mon1 => $portid])
143 unless @$list; 167 unless @$list || !length $portid;
144 168
145 push @$list, $cb; 169 push @$list, $cb;
146} 170}
147 171
148sub unmonitor { 172sub unmonitor {
… …
157 $self->send (["", mon0 => $portid]); 181 $self->send (["", mon0 => $portid]);
158 delete $self->{monitor}{$portid}; 182 delete $self->{monitor}{$portid};
159 } 183 }
160} 184}
161 185
186# used for direct slave connections as well
187package AnyEvent::MP::Node::Direct;
188
189use base "AnyEvent::MP::Node::External";
190
191package AnyEvent::MP::Node::Self;
192
193use base "AnyEvent::MP::Node";
194
195sub connect {
196 # we are trivially connected
197}
198
162sub set_transport { 199sub transport_reset {
163 my ($self, $transport) = @_;
164
165 $self->clr_transport
166 if $self->{transport};
167
168 delete $self->{trial};
169 delete $self->{next_connect};
170 delete $self->{failed};
171
172 if (
173 exists $self->{remote_uniq}
174 && $self->{remote_uniq} ne $transport->{remote_uniq}
175 ) {
176 # uniq changed, drop queue
177 delete $self->{queue};
178 #TODO: "DOWN"
179 }
180
181 $self->{remote_uniq} = $transport->{remote_uniq};
182 $self->{transport} = $transport;
183
184 $transport->send ($_)
185 for @{ delete $self->{queue} || [] };
186}
187
188sub clr_transport {
189 my ($self) = @_; 200 my ($self) = @_;
190 201
191 delete $self->{transport};
192 $self->{failed} = 1;
193
194 if (my $mon = delete $self->{monitor}) {
195 $_->() for map @$_, values %$mon;
196 }
197
198 $self->connect;
199}
200
201sub connect {
202 my ($self) = @_;
203
204 Scalar::Util::weaken $self; 202 Scalar::Util::weaken $self;
205 203
206 unless (exists $self->{n_noderef}) { 204 $self->{send} = sub {
207 return if $self->{n_noderef_}++;
208 (AnyEvent::MP::Node::normalise_noderef ($self->{noderef}))->cb (sub {
209 $self or return;
210 delete $self->{n_noderef_};
211 my $noderef = shift->recv;
212
213 $self->{n_noderef} = $noderef;
214
215 $AnyEvent::MP::Base::NODE{$_} = $self 205 local $AnyEvent::MP::Kernel::SRCNODE = $self;
216 for split /,/, $noderef; 206 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
217
218 $self->connect;
219 });
220 return;
221 }
222
223 $self->{retry} ||= [split /,/, $self->{n_noderef}];
224
225 my $endpoint = shift @{ $self->{retry} };
226
227 if (defined $endpoint) {
228 $self->{trial}{$endpoint} ||= do {
229 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
230 or return;
231
232 my ($w, $g);
233
234 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
235 delete $self->{trial}{$endpoint};
236 };
237 $g = AnyEvent::MP::Transport::mp_connect
238 $host, $port,
239 sub {
240 delete $self->{trial}{$endpoint}
241 unless @_;
242 $g = shift;
243 };
244 ;
245
246 [$w, \$g]
247 };
248 } else {
249 delete $self->{retry};
250 }
251
252 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
253 $self->connect;
254 }; 207 };
255} 208}
256 209
257package AnyEvent::MP::Node::Self; 210sub transport_connect {
211 my ($self, $tp) = @_;
258 212
259use base "AnyEvent::MP::Node"; 213 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})");
260
261sub set_transport {
262 die "FATAL error, set_transport was called";
263}
264
265sub send {
266 local $AnyEvent::MP::Base::SRCNODE = $_[0];
267 AnyEvent::MP::Base::_inject (@{ $_[1] });
268} 214}
269 215
270sub kill { 216sub kill {
271 my ($self, $port, @reason) = @_; 217 my ($self, $port, @reason) = @_;
272 218
273 delete $AnyEvent::MP::Base::PORT{$port}; 219 delete $AnyEvent::MP::Kernel::PORT{$port};
220 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
274 221
275 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 222 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
276 or return; 223 or !@reason
224 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
277 225
278 $_->(@reason) for values %$mon; 226 $_->(@reason) for values %$mon;
279} 227}
280 228
281sub monitor { 229sub monitor {
282 my ($self, $portid, $cb) = @_; 230 my ($self, $portid, $cb) = @_;
283 231
284 return $cb->() 232 return $cb->(no_such_port => "cannot monitor nonexistent port")
285 unless exists $AnyEvent::MP::Base::PORT{$portid}; 233 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
286 234
287 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 235 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
288} 236}
289 237
290sub unmonitor { 238sub unmonitor {
291 my ($self, $portid, $cb) = @_; 239 my ($self, $portid, $cb) = @_;
292 240
293 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 241 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
294} 242}
295 243
296=head1 SEE ALSO 244=head1 SEE ALSO
297 245
298L<AnyEvent>. 246L<AnyEvent::MP>.
299 247
300=head1 AUTHOR 248=head1 AUTHOR
301 249
302 Marc Lehmann <schmorp@schmorp.de> 250 Marc Lehmann <schmorp@schmorp.de>
303 http://home.schmorp.de/ 251 http://home.schmorp.de/

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