ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/AnyEvent-MP/MP/Node.pm
(Generate patch)

Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.8 by root, Tue Aug 4 18:33:30 2009 UTC vs.
Revision 1.17 by root, Mon Aug 10 01:37:19 2009 UTC

… …
17use AE (); 17use AE ();
18use AnyEvent::Util (); 18use AnyEvent::Util ();
19use AnyEvent::Socket (); 19use AnyEvent::Socket ();
20 20
21use AnyEvent::MP::Transport (); 21use AnyEvent::MP::Transport ();
22
23use base Exporter::;
24
25our $VERSION = '0.0';
26
27our $DEFAULT_PORT = "4040";
28
29sub normalise_noderef($) {
30 my ($noderef) = @_;
31
32 my $cv = AE::cv;
33 my @res;
34
35 $cv->begin (sub {
36 my %seen;
37 my @refs;
38 for (sort { $a->[0] <=> $b->[0] } @res) {
39 push @refs, $_->[1] unless $seen{$_->[1]}++
40 }
41 shift->send (join ",", @refs);
42 });
43
44 $noderef = $DEFAULT_PORT unless length $noderef;
45
46 my $idx;
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
55 $cv->begin;
56 AnyEvent::Socket::resolve_sockaddr $nodename, $t || "aemp=$DEFAULT_PORT", "tcp", 0, undef, sub {
57 for (@_) {
58 my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3];
59 push @res, [
60 $pri += 1e-5,
61 AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service
62 ];
63 }
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 }
90 }
91 }
92
93 $cv->end;
94
95 $cv
96}
97 22
98sub new { 23sub new {
99 my ($class, $noderef) = @_; 24 my ($class, $noderef) = @_;
100 25
101 bless { noderef => $noderef }, $class 26 bless { noderef => $noderef }, $class
… …
125} 50}
126 51
127sub monitor { 52sub monitor {
128 my ($self, $portid, $cb) = @_; 53 my ($self, $portid, $cb) = @_;
129 54
130 return $cb->("node failed conenction")
131 if $self->{failed};
132
133 my $list = $self->{lmon}{$portid} ||= []; 55 my $list = $self->{lmon}{$portid} ||= [];
134 56
135 $self->send (["", mon1 => $portid]) 57 $self->send (["", mon1 => $portid])
136 unless @$list; 58 unless @$list;
137 59
… …
156 my ($self, $transport) = @_; 78 my ($self, $transport) = @_;
157 79
158 $self->clr_transport 80 $self->clr_transport
159 if $self->{transport}; 81 if $self->{transport};
160 82
161 if (
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
169 delete $self->{trial}; 83 delete $self->{trial};
84 delete $self->{retry};
170 delete $self->{next_connect}; 85 delete $self->{next_connect};
171 delete $self->{failed};
172 86
173 $self->{remote_uniq} = $transport->{remote_uniq};
174 $self->{transport} = $transport; 87 $self->{transport} = $transport;
175 88
176 $transport->send ($_) 89 $transport->send ($_)
177 for @{ delete $self->{queue} || [] }; 90 for @{ delete $self->{queue} || [] };
178} 91}
179 92
180sub fail { 93sub fail {
181 my ($self, @reason) = @_; 94 my ($self, @reason) = @_;
182 95
183 delete $self->{queue}; 96 delete $self->{queue};
184 97
185 $self->{failed} = 1;
186
187 if (my $mon = delete $self->{lmon}) { 98 if (my $mon = delete $self->{lmon}) {
188 $_->(@reason) for map @$_, values %$mon; 99 $_->(@reason) for map @$_, values %$mon;
189 } 100 }
190} 101}
191 102
… …
199sub connect { 110sub connect {
200 my ($self) = @_; 111 my ($self) = @_;
201 112
202 Scalar::Util::weaken $self; 113 Scalar::Util::weaken $self;
203 114
204 unless (exists $self->{n_noderef}) {
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
214 for split /,/, $noderef;
215
216 $self->connect;
217 });
218 return;
219 }
220
221 $self->{retry} ||= [split /,/, $self->{n_noderef}]; 115 $self->{retry} ||= [split /,/, $self->{noderef}];
222 116
223 my $endpoint = shift @{ $self->{retry} }; 117 my $endpoint = shift @{ $self->{retry} };
224 118
225 if (defined $endpoint) { 119 if (defined $endpoint) {
226 $self->{trial}{$endpoint} ||= do { 120 $self->{trial}{$endpoint} ||= do {
227 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 121 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
228 or return; 122 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
229 123
230 my ($w, $g); 124 my ($w, $g);
231 125
232 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub { 126 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
233 delete $self->{trial}{$endpoint}; 127 delete $self->{trial}{$endpoint};
… …
242 ; 136 ;
243 137
244 [$w, \$g] 138 [$w, \$g]
245 }; 139 };
246 } else { 140 } else {
141 $self->fail (transport_error => $self->{noderef}, "unable to connect");
142 }
143
144 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
247 delete $self->{retry}; 145 delete $self->{retry};
248 }
249
250 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
251 $self->connect; 146 $self->connect;
252 }; 147 };
253} 148}
254 149
150package AnyEvent::MP::Node::Slave;
151
152use base "AnyEvent::MP::Node::Direct";
153
154sub connect {
155 my ($self) = @_;
156
157 $self->fail (transport_error => $self->{noderef}, "unable to connect to slave node");
158}
159
255package AnyEvent::MP::Node::Self; 160package AnyEvent::MP::Node::Self;
256 161
257use base "AnyEvent::MP::Node"; 162use base "AnyEvent::MP::Node";
258 163
259sub set_transport { 164sub set_transport {
260 die "FATAL error, set_transport was called"; 165 Carp::confess "FATAL error, set_transport was called on local node";
261} 166}
262 167
263sub send { 168sub send {
264 local $AnyEvent::MP::Base::SRCNODE = $_[0]; 169 local $AnyEvent::MP::Base::SRCNODE = $_[0];
265 AnyEvent::MP::Base::_inject (@{ $_[1] }); 170 AnyEvent::MP::Base::_inject (@{ $_[1] });
… …
279} 184}
280 185
281sub monitor { 186sub monitor {
282 my ($self, $portid, $cb) = @_; 187 my ($self, $portid, $cb) = @_;
283 188
284 return $cb->() 189 return $cb->(no_such_port => "cannot monitor nonexistent port")
285 unless exists $AnyEvent::MP::Base::PORT{$portid}; 190 unless exists $AnyEvent::MP::Base::PORT{$portid};
286 191
287 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 192 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb;
288} 193}
289 194
… …
293 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 198 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0};
294} 199}
295 200
296=head1 SEE ALSO 201=head1 SEE ALSO
297 202
298L<AnyEvent>. 203L<AnyEvent::MP>.
299 204
300=head1 AUTHOR 205=head1 AUTHOR
301 206
302 Marc Lehmann <schmorp@schmorp.de> 207 Marc Lehmann <schmorp@schmorp.de>
303 http://home.schmorp.de/ 208 http://home.schmorp.de/

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines