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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 1.16 by root, Sun Aug 9 16:08:16 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
24our $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 $cv
95}
96 24
97sub new { 25sub new {
98 my ($class, $noderef) = @_; 26 my ($class, $noderef) = @_;
99 27
100 bless { noderef => $noderef }, $class 28 bless { noderef => $noderef }, $class
… …
115 $self->{queue} = [$msg]; 43 $self->{queue} = [$msg];
116 $self->connect; 44 $self->connect;
117 } 45 }
118} 46}
119 47
48sub kill {
49 my ($self, $port, @reason) = @_;
50
51 $self->send (["", kil => $port, @reason]);
52}
53
54sub monitor {
55 my ($self, $portid, $cb) = @_;
56
57 my $list = $self->{lmon}{$portid} ||= [];
58
59 $self->send (["", mon1 => $portid])
60 unless @$list;
61
62 push @$list, $cb;
63}
64
65sub unmonitor {
66 my ($self, $portid, $cb) = @_;
67
68 my $list = $self->{lmon}{$portid}
69 or return;
70
71 @$list = grep $_ != $cb, @$list;
72
73 unless (@$list) {
74 $self->send (["", mon0 => $portid]);
75 delete $self->{monitor}{$portid};
76 }
77}
78
120sub set_transport { 79sub set_transport {
121 my ($self, $transport) = @_; 80 my ($self, $transport) = @_;
122 81
82 $self->clr_transport
83 if $self->{transport};
84
123 delete $self->{trial}; 85 delete $self->{trial};
86 delete $self->{retry};
124 delete $self->{next_connect}; 87 delete $self->{next_connect};
125 88
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; 89 $self->{transport} = $transport;
137 90
138 $transport->send ($_) 91 $transport->send ($_)
139 for @{ delete $self->{queue} || [] }; 92 for @{ delete $self->{queue} || [] };
140} 93}
141 94
95sub fail {
96 my ($self, @reason) = @_;
97
98 delete $self->{queue};
99
100 if (my $mon = delete $self->{lmon}) {
101 $_->(@reason) for map @$_, values %$mon;
102 }
103}
104
142sub clr_transport { 105sub clr_transport {
143 my ($self) = @_; 106 my ($self, @reason) = @_;
144 107
145 delete $self->{transport}; 108 delete $self->{transport};
146
147 $self->connect; 109 $self->connect;
148} 110}
149 111
150sub connect { 112sub connect {
151 my ($self) = @_; 113 my ($self) = @_;
152 114
153 Scalar::Util::weaken $self; 115 Scalar::Util::weaken $self;
154 116
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}]; 117 $self->{retry} ||= [split /,/, $self->{noderef}];
173 118
174 my $endpoint = shift @{ $self->{retry} }; 119 my $endpoint = shift @{ $self->{retry} };
175 120
176 if (defined $endpoint) { 121 if (defined $endpoint) {
177 $self->{trial}{$endpoint} ||= do { 122 $self->{trial}{$endpoint} ||= do {
178 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 123 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
179 or return; 124 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
180 125
181 my ($w, $g); 126 my ($w, $g);
182 127
183 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub { 128 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
184 delete $self->{trial}{$endpoint}; 129 delete $self->{trial}{$endpoint};
… …
193 ; 138 ;
194 139
195 [$w, \$g] 140 [$w, \$g]
196 }; 141 };
197 } else { 142 } else {
143 $self->fail (transport_error => $self->{noderef}, "unable to connect");
144 }
145
146 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
198 delete $self->{retry}; 147 delete $self->{retry};
199 }
200
201 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
202 $self->connect; 148 $self->connect;
203 }; 149 };
204} 150}
205 151
152package AnyEvent::MP::Node::Slave;
153
154use base "AnyEvent::MP::Node::Direct";
155
156sub connect {
157 my ($self) = @_;
158
159 $self->fail (transport_error => $self->{noderef}, "unable to connect to slave node");
160}
161
206package AnyEvent::MP::Node::Self; 162package AnyEvent::MP::Node::Self;
207 163
208use base "AnyEvent::MP::Node"; 164use base "AnyEvent::MP::Node";
209 165
210sub set_transport { 166sub set_transport {
211 die "FATAL error, set_transport was called"; 167 Carp::confess "FATAL error, set_transport was called on local node";
212} 168}
213 169
214sub send { 170sub send {
171 local $AnyEvent::MP::Base::SRCNODE = $_[0];
215 AnyEvent::MP::Base::_inject ($_[1]); 172 AnyEvent::MP::Base::_inject (@{ $_[1] });
173}
174
175sub kill {
176 my ($self, $port, @reason) = @_;
177
178 delete $AnyEvent::MP::Base::PORT{$port};
179 delete $AnyEvent::MP::Base::PORT_DATA{$port};
180
181 my $mon = delete $AnyEvent::MP::Base::LMON{$port}
182 or !@reason
183 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason");
184
185 $_->(@reason) for values %$mon;
186}
187
188sub monitor {
189 my ($self, $portid, $cb) = @_;
190
191 return $cb->(no_such_port => "cannot monitor nonexistent port")
192 unless exists $AnyEvent::MP::Base::PORT{$portid};
193
194 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb;
195}
196
197sub unmonitor {
198 my ($self, $portid, $cb) = @_;
199
200 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0};
216} 201}
217 202
218=head1 SEE ALSO 203=head1 SEE ALSO
219 204
220L<AnyEvent>. 205L<AnyEvent>.

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