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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 1.21 by root, Thu Aug 13 00:49:23 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
25our $VERSION = '0.0';
26
27our $DEFAULT_PORT = "4040";
28
29sub normalise_noderef($) {
30 my ($noderef) = @_; 24 my ($self, $noderef) = @_;
31 25
32 my $cv = AE::cv; 26 $self = bless { noderef => $noderef }, $self;
33 my @res;
34 27
35 $cv->begin (sub { 28 $self->transport_reset;
36 my %seen; 29
37 my @refs; 30 $self
38 for (sort { $a->[0] <=> $b->[0] } @res) { 31}
39 push @refs, $_->[1] unless $seen{$_->[1]}++ 32
33sub send {
34 &{ shift->{send} }
35}
36
37package AnyEvent::MP::Node::External;
38
39use base "AnyEvent::MP::Node";
40
41# called at init time, mostly sets {send}
42sub transport_reset {
43 my ($self) = @_;
44
45 delete $self->{transport};
46
47 Scalar::Util::weaken $self;
48
49 $self->{send} = sub {
50 push @{$self->{queue}}, shift;
51 $self->connect;
52 };
53}
54
55# called only after successful handshake
56sub transport_error {
57 my ($self, @reason) = @_;
58
59 my $no_transport = !$self->{transport};
60
61 delete $self->{connect_w};
62 delete $self->{connect_to};
63
64 delete $self->{queue};
65 $self->transport_reset;
66
67 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
68 unless $no_transport;
69
70 if (my $mon = delete $self->{lmon}) {
71 $_->(@reason) for map @$_, values %$mon;
72 }
73}
74
75# called after handshake was successful
76sub transport_connect {
77 my ($self, $transport) = @_;
78
79 $self->transport_error (transport_error => "switched connections")
80 if $self->{transport};
81
82 delete $self->{connect_w};
83 delete $self->{connect_to};
84
85 $self->{transport} = $transport;
86
87 my $transport_send = $transport->can ("send");
88
89 $self->{send} = sub {
90 $transport_send->($transport, $_[0]);
91 };
92
93 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
94
95 $transport->send ($_)
96 for @{ delete $self->{queue} || [] };
97}
98
99sub connect {
100 my ($self) = @_;
101
102 Scalar::Util::weaken $self;
103
104 $self->{connect_to} ||= AE::timer
105 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
106 0,
107 sub {
108 $self->transport_error (transport_error => $self->{noderef}, "unable to connect");
40 } 109 };
41 shift->send (join ",", @refs);
42 });
43 110
44 $noderef = $DEFAULT_PORT unless length $noderef; 111 unless ($self->{connect_w}) {
112 my @endpoints;
113 my %trial;
45 114
46 my $idx; 115 $self->{connect_w} = AE::timer
47 for my $t (split /,/, $noderef) { 116 0,
48 my $pri = ++$idx; 117 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
49 118 sub {
50 #TODO: this should be outside normalise_noderef and in become_public 119 @endpoints = split /,/, $self->{noderef}
51 if ($t =~ /^\d*$/) { 120 unless @endpoints;
52 require POSIX;
53 my $nodename = (POSIX::uname ())[1];
54 121
55 $cv->begin; 122 my $endpoint = shift @endpoints;
56 AnyEvent::Socket::resolve_sockaddr $nodename, $t || "aemp=$DEFAULT_PORT", "tcp", 0, undef, sub { 123
57 for (@_) { 124 $trial{$endpoint} ||= do {
58 my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3]; 125 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
59 push @res, [ 126 or return $AnyEvent::MP::Kernel::WARN->("$self->{noderef}: not a resolved node reference.");
60 $pri += 1e-5, 127
61 AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service 128 AnyEvent::MP::Transport::mp_connect
129 $host, $port,
130 sub { delete $trial{$endpoint} }
62 ]; 131 ;
63 } 132 };
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 } 133 }
90 } 134 ;
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 $self->connect;
118 } 135 }
119} 136}
120 137
121sub kill { 138sub kill {
122 my ($self, $port, @reason) = @_; 139 my ($self, $port, @reason) = @_;
123 140
124 $self->send (["", kil => $port, @reason]); 141 $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} 142}
133 143
134sub monitor { 144sub monitor {
135 my ($self, $portid, $cb) = @_; 145 my ($self, $portid, $cb) = @_;
136
137 return $cb->()
138 if $self->{failed};
139 146
140 my $list = $self->{lmon}{$portid} ||= []; 147 my $list = $self->{lmon}{$portid} ||= [];
141 148
142 $self->send (["", mon1 => $portid]) 149 $self->send (["", mon1 => $portid])
143 unless @$list; 150 unless @$list;
… …
157 $self->send (["", mon0 => $portid]); 164 $self->send (["", mon0 => $portid]);
158 delete $self->{monitor}{$portid}; 165 delete $self->{monitor}{$portid};
159 } 166 }
160} 167}
161 168
162sub set_transport { 169package AnyEvent::MP::Node::Direct;
163 my ($self, $transport) = @_;
164 170
165 $self->clr_transport 171use base "AnyEvent::MP::Node::External";
166 if $self->{transport};
167 172
168 delete $self->{trial}; 173package AnyEvent::MP::Node::Indirect;
169 delete $self->{next_connect};
170 delete $self->{failed};
171 174
172 if ( 175use base "AnyEvent::MP::Node::Direct";
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) = @_;
190
191 delete $self->{transport};
192 $self->{failed} = 1;
193
194 if (my $mon = delete $self->{monitor}) {
195 $_->() for map @$_, values %$mon;
196 }
197
198 $self->connect;
199}
200 176
201sub connect { 177sub connect {
202 my ($self) = @_; 178 my ($self) = @_;
203 179
180 $self->transport_error (transport_error => $self->{noderef}, "unable to connect to indirect node");
181}
182
183package AnyEvent::MP::Node::Self;
184
185use base "AnyEvent::MP::Node";
186
187sub connect {
188 # we are trivially connected
189}
190
191sub transport_reset {
192 my ($self) = @_;
193
204 Scalar::Util::weaken $self; 194 Scalar::Util::weaken $self;
205 195
206 unless (exists $self->{n_noderef}) { 196 $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 197 local $AnyEvent::MP::Kernel::SRCNODE = $self;
216 for split /,/, $noderef; 198 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 }; 199 };
255}
256
257package AnyEvent::MP::Node::Self;
258
259use base "AnyEvent::MP::Node";
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 (@{ $_[1] });
268} 200}
269 201
270sub kill { 202sub kill {
271 my ($self, $port, @reason) = @_; 203 my ($self, $port, @reason) = @_;
272 204
273 delete $AnyEvent::MP::Base::PORT{$port}; 205 delete $AnyEvent::MP::Kernel::PORT{$port};
206 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
274 207
275 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 208 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
276 or return; 209 or !@reason
210 or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason");
277 211
278 $_->(@reason) for values %$mon; 212 $_->(@reason) for values %$mon;
279} 213}
280 214
281sub monitor { 215sub monitor {
282 my ($self, $portid, $cb) = @_; 216 my ($self, $portid, $cb) = @_;
283 217
284 return $cb->() 218 return $cb->(no_such_port => "cannot monitor nonexistent port")
285 unless exists $AnyEvent::MP::Base::PORT{$portid}; 219 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
286 220
287 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 221 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
288} 222}
289 223
290sub unmonitor { 224sub unmonitor {
291 my ($self, $portid, $cb) = @_; 225 my ($self, $portid, $cb) = @_;
292 226
293 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 227 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
294} 228}
295 229
296=head1 SEE ALSO 230=head1 SEE ALSO
297 231
298L<AnyEvent>. 232L<AnyEvent::MP>.
299 233
300=head1 AUTHOR 234=head1 AUTHOR
301 235
302 Marc Lehmann <schmorp@schmorp.de> 236 Marc Lehmann <schmorp@schmorp.de>
303 http://home.schmorp.de/ 237 http://home.schmorp.de/

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