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