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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.8 by root, Tue Aug 4 18:33:30 2009 UTC vs.
Revision 1.19 by root, Wed Aug 12 22:03:15 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 delete $self->{queue};
60 $self->transport_reset;
61
62 if (my $mon = delete $self->{lmon}) {
63 $_->(@reason) for map @$_, values %$mon;
64 }
65}
66
67# called after handshake was successful
68sub transport_connect {
69 my ($self, $transport) = @_;
70
71 $self->transport_reset
72 if $self->{transport};
73
74 delete $self->{connect_w};
75 delete $self->{connect_to};
76
77 $self->{transport} = $transport;
78
79 my $transport_send = $transport->can ("send");
80
81 $self->{send} = sub {
82 $transport_send->($transport, $_[0]);
83 };
84
85 $transport->send ($_)
86 for @{ delete $self->{queue} || [] };
87}
88
89sub connect {
90 my ($self) = @_;
91
92 Scalar::Util::weaken $self;
93
94 $self->{connect_to} ||= AE::timer
95 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
96 0,
97 sub {
98 $self->transport_error (transport_error => $self->{noderef}, "unable to connect");
40 } 99 };
41 shift->send (join ",", @refs);
42 });
43 100
44 $noderef = $DEFAULT_PORT unless length $noderef; 101 unless ($self->{connect_w}) {
102 my @endpoints;
103 my %trial;
45 104
46 my $idx; 105 $self->{connect_w} = AE::timer
47 for my $t (split /,/, $noderef) { 106 0,
48 my $pri = ++$idx; 107 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
49 108 sub {
50 #TODO: this should be outside normalise_noderef and in become_public 109 @endpoints = split /,/, $self->{noderef}
51 if ($t =~ /^\d*$/) { 110 unless @endpoints;
52 require POSIX;
53 my $nodename = (POSIX::uname ())[1];
54 111
55 $cv->begin; 112 my $endpoint = shift @endpoints;
56 AnyEvent::Socket::resolve_sockaddr $nodename, $t || "aemp=$DEFAULT_PORT", "tcp", 0, undef, sub { 113
57 for (@_) { 114 $trial{$endpoint} ||= do {
58 my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3]; 115 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
59 push @res, [ 116 or return $AnyEvent::MP::Kernel::WARN->("$self->{noderef}: not a resolved node reference.");
60 $pri += 1e-5, 117
61 AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service 118 AnyEvent::MP::Transport::mp_connect
119 $host, $port,
120 sub { delete $trial{$endpoint} }
62 ]; 121 ;
63 } 122 };
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 } 123 }
90 } 124 ;
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 $self->connect;
118 } 125 }
119} 126}
120 127
121sub kill { 128sub kill {
122 my ($self, $port, @reason) = @_; 129 my ($self, $port, @reason) = @_;
… …
124 $self->send (["", kil => $port, @reason]); 131 $self->send (["", kil => $port, @reason]);
125} 132}
126 133
127sub monitor { 134sub monitor {
128 my ($self, $portid, $cb) = @_; 135 my ($self, $portid, $cb) = @_;
129
130 return $cb->("node failed conenction")
131 if $self->{failed};
132 136
133 my $list = $self->{lmon}{$portid} ||= []; 137 my $list = $self->{lmon}{$portid} ||= [];
134 138
135 $self->send (["", mon1 => $portid]) 139 $self->send (["", mon1 => $portid])
136 unless @$list; 140 unless @$list;
… …
150 $self->send (["", mon0 => $portid]); 154 $self->send (["", mon0 => $portid]);
151 delete $self->{monitor}{$portid}; 155 delete $self->{monitor}{$portid};
152 } 156 }
153} 157}
154 158
155sub set_transport { 159package AnyEvent::MP::Node::Direct;
156 my ($self, $transport) = @_;
157 160
158 $self->clr_transport 161use base "AnyEvent::MP::Node::External";
159 if $self->{transport};
160 162
161 if ( 163package 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 }
168 164
169 delete $self->{trial}; 165use 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 $self->{queue} || [] };
178}
179
180sub fail {
181 my ($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 %$mon;
189 }
190}
191
192sub clr_transport {
193 my ($self, @reason) = @_;
194
195 delete $self->{transport};
196 $self->connect;
197}
198 166
199sub connect { 167sub connect {
200 my ($self) = @_; 168 my ($self) = @_;
201 169
170 $self->transport_error (transport_error => $self->{noderef}, "unable to connect to indirect node");
171}
172
173package AnyEvent::MP::Node::Self;
174
175use base "AnyEvent::MP::Node";
176
177sub transport_reset {
178 my ($self) = @_;
179
202 Scalar::Util::weaken $self; 180 Scalar::Util::weaken $self;
203 181
204 unless (exists $self->{n_noderef}) { 182 $self->{send} = sub {
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
211 $self->{n_noderef} = $noderef;
212
213 $AnyEvent::MP::Base::NODE{$_} = $self 183 local $AnyEvent::MP::Kernel::SRCNODE = $self;
214 for split /,/, $noderef; 184 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
215
216 $self->connect;
217 });
218 return;
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 }; 185 };
253}
254
255package AnyEvent::MP::Node::Self;
256
257use base "AnyEvent::MP::Node";
258
259sub set_transport {
260 die "FATAL error, set_transport was called";
261}
262
263sub send {
264 local $AnyEvent::MP::Base::SRCNODE = $_[0];
265 AnyEvent::MP::Base::_inject (@{ $_[1] });
266} 186}
267 187
268sub kill { 188sub kill {
269 my ($self, $port, @reason) = @_; 189 my ($self, $port, @reason) = @_;
270 190
271 delete $AnyEvent::MP::Base::PORT{$port}; 191 delete $AnyEvent::MP::Kernel::PORT{$port};
272 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 192 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
273 193
274 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 194 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
275 or !@reason 195 or !@reason
276 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 196 or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason");
277 197
278 $_->(@reason) for values %$mon; 198 $_->(@reason) for values %$mon;
279} 199}
280 200
281sub monitor { 201sub monitor {
282 my ($self, $portid, $cb) = @_; 202 my ($self, $portid, $cb) = @_;
283 203
284 return $cb->() 204 return $cb->(no_such_port => "cannot monitor nonexistent port")
285 unless exists $AnyEvent::MP::Base::PORT{$portid}; 205 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
286 206
287 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 207 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
288} 208}
289 209
290sub unmonitor { 210sub unmonitor {
291 my ($self, $portid, $cb) = @_; 211 my ($self, $portid, $cb) = @_;
292 212
293 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 213 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
294} 214}
295 215
296=head1 SEE ALSO 216=head1 SEE ALSO
297 217
298L<AnyEvent>. 218L<AnyEvent::MP>.
299 219
300=head1 AUTHOR 220=head1 AUTHOR
301 221
302 Marc Lehmann <schmorp@schmorp.de> 222 Marc Lehmann <schmorp@schmorp.de>
303 http://home.schmorp.de/ 223 http://home.schmorp.de/

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