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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 1.17 by root, Mon Aug 10 01:37:19 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
22use 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 $cv
95}
96 22
97sub new { 23sub new {
98 my ($class, $noderef) = @_; 24 my ($class, $noderef) = @_;
99 25
100 bless { noderef => $noderef }, $class 26 bless { noderef => $noderef }, $class
… …
115 $self->{queue} = [$msg]; 41 $self->{queue} = [$msg];
116 $self->connect; 42 $self->connect;
117 } 43 }
118} 44}
119 45
46sub kill {
47 my ($self, $port, @reason) = @_;
48
49 $self->send (["", kil => $port, @reason]);
50}
51
52sub monitor {
53 my ($self, $portid, $cb) = @_;
54
55 my $list = $self->{lmon}{$portid} ||= [];
56
57 $self->send (["", mon1 => $portid])
58 unless @$list;
59
60 push @$list, $cb;
61}
62
63sub unmonitor {
64 my ($self, $portid, $cb) = @_;
65
66 my $list = $self->{lmon}{$portid}
67 or return;
68
69 @$list = grep $_ != $cb, @$list;
70
71 unless (@$list) {
72 $self->send (["", mon0 => $portid]);
73 delete $self->{monitor}{$portid};
74 }
75}
76
120sub set_transport { 77sub set_transport {
121 my ($self, $transport) = @_; 78 my ($self, $transport) = @_;
122 79
80 $self->clr_transport
81 if $self->{transport};
82
123 delete $self->{trial}; 83 delete $self->{trial};
84 delete $self->{retry};
124 delete $self->{next_connect}; 85 delete $self->{next_connect};
125 86
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; 87 $self->{transport} = $transport;
137 88
138 $transport->send ($_) 89 $transport->send ($_)
139 for @{ delete $self->{queue} || [] }; 90 for @{ delete $self->{queue} || [] };
140} 91}
141 92
93sub fail {
94 my ($self, @reason) = @_;
95
96 delete $self->{queue};
97
98 if (my $mon = delete $self->{lmon}) {
99 $_->(@reason) for map @$_, values %$mon;
100 }
101}
102
142sub clr_transport { 103sub clr_transport {
143 my ($self) = @_; 104 my ($self, @reason) = @_;
144 105
145 delete $self->{transport}; 106 delete $self->{transport};
146
147 $self->connect; 107 $self->connect;
148} 108}
149 109
150sub connect { 110sub connect {
151 my ($self) = @_; 111 my ($self) = @_;
152 112
153 Scalar::Util::weaken $self; 113 Scalar::Util::weaken $self;
154 114
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}]; 115 $self->{retry} ||= [split /,/, $self->{noderef}];
173 116
174 my $endpoint = shift @{ $self->{retry} }; 117 my $endpoint = shift @{ $self->{retry} };
175 118
176 if (defined $endpoint) { 119 if (defined $endpoint) {
177 $self->{trial}{$endpoint} ||= do { 120 $self->{trial}{$endpoint} ||= do {
178 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 121 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
179 or return; 122 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
180 123
181 my ($w, $g); 124 my ($w, $g);
182 125
183 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub { 126 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
184 delete $self->{trial}{$endpoint}; 127 delete $self->{trial}{$endpoint};
… …
193 ; 136 ;
194 137
195 [$w, \$g] 138 [$w, \$g]
196 }; 139 };
197 } 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 {
198 delete $self->{retry}; 145 delete $self->{retry};
199 }
200
201 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
202 $self->connect; 146 $self->connect;
203 }; 147 };
204} 148}
205 149
150package AnyEvent::MP::Node::Slave;
151
152use base "AnyEvent::MP::Node::Direct";
153
154sub connect {
155 my ($self) = @_;
156
157 $self->fail (transport_error => $self->{noderef}, "unable to connect to slave node");
158}
159
206package AnyEvent::MP::Node::Self; 160package AnyEvent::MP::Node::Self;
207 161
208use base "AnyEvent::MP::Node"; 162use base "AnyEvent::MP::Node";
209 163
210sub set_transport { 164sub set_transport {
211 die "FATAL error, set_transport was called"; 165 Carp::confess "FATAL error, set_transport was called on local node";
212} 166}
213 167
214sub send { 168sub send {
169 local $AnyEvent::MP::Base::SRCNODE = $_[0];
215 AnyEvent::MP::Base::_inject ($_[1]); 170 AnyEvent::MP::Base::_inject (@{ $_[1] });
171}
172
173sub kill {
174 my ($self, $port, @reason) = @_;
175
176 delete $AnyEvent::MP::Base::PORT{$port};
177 delete $AnyEvent::MP::Base::PORT_DATA{$port};
178
179 my $mon = delete $AnyEvent::MP::Base::LMON{$port}
180 or !@reason
181 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason");
182
183 $_->(@reason) for values %$mon;
184}
185
186sub monitor {
187 my ($self, $portid, $cb) = @_;
188
189 return $cb->(no_such_port => "cannot monitor nonexistent port")
190 unless exists $AnyEvent::MP::Base::PORT{$portid};
191
192 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb;
193}
194
195sub unmonitor {
196 my ($self, $portid, $cb) = @_;
197
198 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0};
216} 199}
217 200
218=head1 SEE ALSO 201=head1 SEE ALSO
219 202
220L<AnyEvent>. 203L<AnyEvent::MP>.
221 204
222=head1 AUTHOR 205=head1 AUTHOR
223 206
224 Marc Lehmann <schmorp@schmorp.de> 207 Marc Lehmann <schmorp@schmorp.de>
225 http://home.schmorp.de/ 208 http://home.schmorp.de/

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