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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.5 by root, Sun Aug 2 14:44:37 2009 UTC vs.
Revision 1.11 by root, Wed Aug 5 09:38:56 2009 UTC

… …
13package AnyEvent::MP::Node; 13package AnyEvent::MP::Node;
14 14
15use common::sense; 15use common::sense;
16 16
17use AE (); 17use AE ();
18use AnyEvent::Util ();
18use AnyEvent::Socket (); 19use AnyEvent::Socket ();
19 20
20use AnyEvent::MP::Transport (); 21use AnyEvent::MP::Transport ();
21 22
22use base Exporter::; 23use base Exporter::;
23 24
24our $VERSION = '0.0'; 25our $VERSION = '0.0';
25
26our $DEFAULT_PORT = "4040";
27
28sub normalise_noderef($) {
29 my ($noderef) = @_;
30
31 my $cv = AE::cv;
32 my @res;
33
34 $cv->begin (sub {
35 my %seen;
36 my @refs;
37 for (sort { $a->[0] <=> $b->[0] } @res) {
38 push @refs, $_->[1] unless $seen{$_->[1]}++
39 }
40 shift->send (join ",", @refs);
41 });
42
43 $noderef = $DEFAULT_PORT unless length $noderef;
44
45 my $idx;
46 for my $t (split /,/, $noderef) {
47 my $pri = ++$idx;
48
49 #TODO: this should be outside normalise_noderef and in become_public
50 if ($t =~ /^\d*$/) {
51 require POSIX;
52 my $nodename = (POSIX::uname ())[1];
53
54 $cv->begin;
55 AnyEvent::Socket::resolve_sockaddr $nodename, $t || "aemp=$DEFAULT_PORT", "tcp", 0, undef, sub {
56 for (@_) {
57 my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3];
58 push @res, [
59 $pri += 1e-5,
60 AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service
61 ];
62 }
63 $cv->end;
64 };
65
66# my (undef, undef, undef, undef, @ipv4) = gethostbyname $nodename;
67#
68# for (@ipv4) {
69# push @res, [
70# $pri,
71# AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $_, $t || $DEFAULT_PORT,
72# ];
73# }
74 } else {
75 my ($host, $port) = AnyEvent::Socket::parse_hostport $t, "aemp=$DEFAULT_PORT"
76 or Carp::croak "$t: unparsable transport descriptor";
77
78 $cv->begin;
79 AnyEvent::Socket::resolve_sockaddr $host, $port, "tcp", 0, undef, sub {
80 for (@_) {
81 my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3];
82 push @res, [
83 $pri += 1e-5,
84 AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service
85 ];
86 }
87 $cv->end;
88 }
89 }
90 }
91
92 $cv->end;
93
94 $cv
95}
96 26
97sub new { 27sub new {
98 my ($class, $noderef) = @_; 28 my ($class, $noderef) = @_;
99 29
100 bless { noderef => $noderef }, $class 30 bless { noderef => $noderef }, $class
… …
115 $self->{queue} = [$msg]; 45 $self->{queue} = [$msg];
116 $self->connect; 46 $self->connect;
117 } 47 }
118} 48}
119 49
50sub kill {
51 my ($self, $port, @reason) = @_;
52
53 $self->send (["", kil => $port, @reason]);
54}
55
56sub monitor {
57 my ($self, $portid, $cb) = @_;
58
59 return $cb->(transport_error => "node unreachable")
60 if $self->{failed};
61
62 my $list = $self->{lmon}{$portid} ||= [];
63
64 $self->send (["", mon1 => $portid])
65 unless @$list;
66
67 push @$list, $cb;
68}
69
70sub unmonitor {
71 my ($self, $portid, $cb) = @_;
72
73 my $list = $self->{lmon}{$portid}
74 or return;
75
76 @$list = grep $_ != $cb, @$list;
77
78 unless (@$list) {
79 $self->send (["", mon0 => $portid]);
80 delete $self->{monitor}{$portid};
81 }
82}
83
120sub set_transport { 84sub set_transport {
121 my ($self, $transport) = @_; 85 my ($self, $transport) = @_;
122 86
123 delete $self->{trial}; 87 $self->clr_transport
124 delete $self->{next_connect}; 88 if $self->{transport};
125 89
126 if ( 90 if (
127 exists $self->{remote_uniq} 91 exists $self->{remote_uniq}
128 && $self->{remote_uniq} ne $transport->{remote_uniq} 92 && $self->{remote_uniq} ne $transport->{remote_uniq}
129 ) { 93 ) {
130 # uniq changed, drop queue 94 # uniq changed, different node
95 $self->fail ("node restart detected");
96 }
97
98 delete $self->{trial};
99 delete $self->{next_connect};
131 delete $self->{queue}; 100 delete $self->{failed};
132 #TODO: "DOWN"
133 }
134 101
135 $self->{remote_uniq} = $transport->{remote_uniq}; 102 $self->{remote_uniq} = $transport->{remote_uniq};
136 $self->{transport} = $transport; 103 $self->{transport} = $transport;
137 104
138 $transport->send ($_) 105 $transport->send ($_)
139 for @{ delete $self->{queue} || [] }; 106 for @{ delete $self->{queue} || [] };
140} 107}
141 108
109sub fail {
110 my ($self, @reason) = @_;
111
112 delete $self->{queue};
113
114 $self->{failed} = 1;
115
116 if (my $mon = delete $self->{lmon}) {
117 $_->(@reason) for map @$_, values %$mon;
118 }
119}
120
142sub clr_transport { 121sub clr_transport {
143 my ($self) = @_; 122 my ($self, @reason) = @_;
144 123
145 delete $self->{transport}; 124 delete $self->{transport};
146
147 $self->connect; 125 $self->connect;
148} 126}
149 127
150sub connect { 128sub connect {
151 my ($self) = @_; 129 my ($self) = @_;
152 130
153 Scalar::Util::weaken $self; 131 Scalar::Util::weaken $self;
154 132
155 unless (exists $self->{n_noderef}) {
156 return if $self->{n_noderef_}++;
157 (AnyEvent::MP::Node::normalise_noderef ($self->{noderef}))->cb (sub {
158 $self or return;
159 delete $self->{n_noderef_};
160 my $noderef = shift->recv;
161
162 $self->{n_noderef} = $noderef;
163
164 $AnyEvent::MP::Base::NODE{$_} = $self
165 for split /,/, $noderef;
166
167 $self->connect;
168 });
169 return;
170 }
171
172 $self->{retry} ||= [split /,/, $self->{n_noderef}]; 133 $self->{retry} ||= [split /,/, $self->{noderef}];
173 134
174 my $endpoint = shift @{ $self->{retry} }; 135 my $endpoint = shift @{ $self->{retry} };
175 136
176 if (defined $endpoint) { 137 if (defined $endpoint) {
177 $self->{trial}{$endpoint} ||= do { 138 $self->{trial}{$endpoint} ||= do {
178 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 139 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
179 or return; 140 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
180 141
181 my ($w, $g); 142 my ($w, $g);
182 143
183 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub { 144 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
184 delete $self->{trial}{$endpoint}; 145 delete $self->{trial}{$endpoint};
… …
194 155
195 [$w, \$g] 156 [$w, \$g]
196 }; 157 };
197 } else { 158 } else {
198 delete $self->{retry}; 159 delete $self->{retry};
160 $self->fail (transport_error => $self->{noderef}, "unable to connect");
199 } 161 }
200 162
201 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub { 163 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
202 $self->connect; 164 $self->connect;
203 }; 165 };
… …
210sub set_transport { 172sub set_transport {
211 die "FATAL error, set_transport was called"; 173 die "FATAL error, set_transport was called";
212} 174}
213 175
214sub send { 176sub send {
177 local $AnyEvent::MP::Base::SRCNODE = $_[0];
215 AnyEvent::MP::Base::_inject ($_[1]); 178 AnyEvent::MP::Base::_inject (@{ $_[1] });
179}
180
181sub kill {
182 my ($self, $port, @reason) = @_;
183
184 delete $AnyEvent::MP::Base::PORT{$port};
185 delete $AnyEvent::MP::Base::PORT_DATA{$port};
186
187 my $mon = delete $AnyEvent::MP::Base::LMON{$port}
188 or !@reason
189 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason");
190
191 $_->(@reason) for values %$mon;
192}
193
194sub monitor {
195 my ($self, $portid, $cb) = @_;
196
197 return $cb->()
198 unless exists $AnyEvent::MP::Base::PORT{$portid};
199
200 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb;
201}
202
203sub unmonitor {
204 my ($self, $portid, $cb) = @_;
205
206 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0};
216} 207}
217 208
218=head1 SEE ALSO 209=head1 SEE ALSO
219 210
220L<AnyEvent>. 211L<AnyEvent>.

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