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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 1.15 by root, Sat Aug 8 21:56:29 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 my $list = $self->{lmon}{$portid} ||= [];
60
61 $self->send (["", mon1 => $portid])
62 unless @$list;
63
64 push @$list, $cb;
65}
66
67sub unmonitor {
68 my ($self, $portid, $cb) = @_;
69
70 my $list = $self->{lmon}{$portid}
71 or return;
72
73 @$list = grep $_ != $cb, @$list;
74
75 unless (@$list) {
76 $self->send (["", mon0 => $portid]);
77 delete $self->{monitor}{$portid};
78 }
79}
80
120sub set_transport { 81sub set_transport {
121 my ($self, $transport) = @_; 82 my ($self, $transport) = @_;
122 83
84 $self->clr_transport
85 if $self->{transport};
86
123 delete $self->{trial}; 87 delete $self->{trial};
124 delete $self->{next_connect}; 88 delete $self->{next_connect};
125 89
126 if (
127 exists $self->{remote_uniq}
128 && $self->{remote_uniq} ne $transport->{remote_uniq}
129 ) {
130 # uniq changed, drop queue
131 delete $self->{queue};
132 #TODO: "DOWN"
133 }
134
135 $self->{remote_uniq} = $transport->{remote_uniq};
136 $self->{transport} = $transport; 90 $self->{transport} = $transport;
137 91
138 $transport->send ($_) 92 $transport->send ($_)
139 for @{ delete $self->{queue} || [] }; 93 for @{ delete $self->{queue} || [] };
140} 94}
141 95
96sub fail {
97 my ($self, @reason) = @_;
98
99 delete $self->{queue};
100
101 if (my $mon = delete $self->{lmon}) {
102 $_->(@reason) for map @$_, values %$mon;
103 }
104}
105
142sub clr_transport { 106sub clr_transport {
143 my ($self) = @_; 107 my ($self, @reason) = @_;
144 108
145 delete $self->{transport}; 109 delete $self->{transport};
146
147 $self->connect; 110 $self->connect;
148} 111}
149 112
150sub connect { 113sub connect {
151 my ($self) = @_; 114 my ($self) = @_;
152 115
153 Scalar::Util::weaken $self; 116 Scalar::Util::weaken $self;
154 117
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}]; 118 $self->{retry} ||= [split /,/, $self->{noderef}];
173 119
174 my $endpoint = shift @{ $self->{retry} }; 120 my $endpoint = shift @{ $self->{retry} };
175 121
176 if (defined $endpoint) { 122 if (defined $endpoint) {
177 $self->{trial}{$endpoint} ||= do { 123 $self->{trial}{$endpoint} ||= do {
178 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 124 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
179 or return; 125 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
180 126
181 my ($w, $g); 127 my ($w, $g);
182 128
183 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub { 129 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
184 delete $self->{trial}{$endpoint}; 130 delete $self->{trial}{$endpoint};
… …
194 140
195 [$w, \$g] 141 [$w, \$g]
196 }; 142 };
197 } else { 143 } else {
198 delete $self->{retry}; 144 delete $self->{retry};
145 $self->fail (transport_error => $self->{noderef}, "unable to connect");
199 } 146 }
200 147
201 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub { 148 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
202 $self->connect; 149 $self->connect;
203 }; 150 };
204} 151}
205 152
153package AnyEvent::MP::Node::Slave;
154
155use base "AnyEvent::MP::Node::Direct";
156
157sub connect {
158 my ($self) = @_;
159
160 $self->fail (transport_error => $self->{noderef}, "unable to connect to slave node");
161}
162
206package AnyEvent::MP::Node::Self; 163package AnyEvent::MP::Node::Self;
207 164
208use base "AnyEvent::MP::Node"; 165use base "AnyEvent::MP::Node";
209 166
210sub set_transport { 167sub set_transport {
211 die "FATAL error, set_transport was called"; 168 Carp::confess "FATAL error, set_transport was called on local node";
212} 169}
213 170
214sub send { 171sub send {
172 local $AnyEvent::MP::Base::SRCNODE = $_[0];
215 AnyEvent::MP::Base::_inject ($_[1]); 173 AnyEvent::MP::Base::_inject (@{ $_[1] });
174}
175
176sub kill {
177 my ($self, $port, @reason) = @_;
178
179 delete $AnyEvent::MP::Base::PORT{$port};
180 delete $AnyEvent::MP::Base::PORT_DATA{$port};
181
182 my $mon = delete $AnyEvent::MP::Base::LMON{$port}
183 or !@reason
184 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason");
185
186 $_->(@reason) for values %$mon;
187}
188
189sub monitor {
190 my ($self, $portid, $cb) = @_;
191
192 return $cb->(no_such_port => "cannot monitor nonexistent port")
193 unless exists $AnyEvent::MP::Base::PORT{$portid};
194
195 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb;
196}
197
198sub unmonitor {
199 my ($self, $portid, $cb) = @_;
200
201 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0};
216} 202}
217 203
218=head1 SEE ALSO 204=head1 SEE ALSO
219 205
220L<AnyEvent>. 206L<AnyEvent>.

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