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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.3 by root, Sat Aug 1 07:36:30 2009 UTC vs.
Revision 1.29 by root, Fri Aug 28 00:31:14 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::;
23
24our $VERSION = '0.0';
25
26sub new { 23sub new {
27 my ($class, $noderef) = @_; 24 my ($self, $id) = @_;
28 25
29 bless { noderef => $noderef }, $class 26 $self = bless { id => $id }, $self;
30}
31 27
28 $self->init;
29 $self->transport_reset;
30
31 $self
32}
33
34sub init {
35 #
36}
37
38sub send {
39 &{ shift->{send} }
40}
41
42# nodes reachable via the network
32package AnyEvent::MP::Node::Direct; 43package AnyEvent::MP::Node::External;
33 44
34use base "AnyEvent::MP::Node"; 45use base "AnyEvent::MP::Node";
35 46
36sub send { 47# called at init time, mostly sets {send}
48sub transport_reset {
37 my ($self, $msg) = @_; 49 my ($self) = @_;
38 50
39 if ($self->{transport}) { 51 delete $self->{transport};
40 $self->{transport}->send ($msg); 52
41 } elsif ($self->{queue}) { 53 Scalar::Util::weaken $self;
54
55 $self->{send} = sub {
42 push @{ $self->{queue} }, $msg; 56 push @{$self->{queue}}, shift;
43 } else {
44 $self->{queue} = [$msg];
45 $self->connect; 57 $self->connect;
58 };
59
60 $self->connect
61 if $self->{autoconnect};
62}
63
64# called only after successful handshake
65sub transport_error {
66 my ($self, @reason) = @_;
67
68 my $no_transport = !$self->{transport};
69
70 delete $self->{connect_w};
71 delete $self->{connect_to};
72
73 delete $self->{queue};
74 $self->transport_reset;
75
76 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
77 unless $no_transport;
78
79 if (my $mon = delete $self->{lmon}) {
80 $_->(@reason) for map @$_, values %$mon;
46 } 81 }
47} 82}
48 83
49sub set_transport { 84# called after handshake was successful
85sub transport_connect {
50 my ($self, $transport) = @_; 86 my ($self, $transport) = @_;
51 87
52 delete $self->{trial}; 88 delete $self->{trial};
89
90 $self->transport_error (transport_error => "switched connections")
91 if $self->{transport};
92
53 delete $self->{next_connect}; 93 delete $self->{connect_w};
94 delete $self->{connect_to};
54 95
55 if (
56 exists $self->{remote_uniq}
57 && $self->{remote_uniq} ne $transport->{remote_uniq}
58 ) {
59 # uniq changed, drop queue
60 delete $self->{queue};
61 #TODO: "DOWN"
62 }
63
64 $self->{remote_uniq} = $transport->{remote_uniq};
65 $self->{transport} = $transport; 96 $self->{transport} = $transport;
97
98 my $transport_send = $transport->can ("send");
99
100 $self->{send} = sub {
101 $transport_send->($transport, $_[0]);
102 };
103
104 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
66 105
67 $transport->send ($_) 106 $transport->send ($_)
68 for @{ delete $self->{queue} || [] }; 107 for @{ delete $self->{queue} || [] };
69} 108}
70 109
110sub connect {
111 my ($self, @addresses) = @_;
112
113 return if $self->{transport};
114
115 Scalar::Util::weaken $self;
116
117 $self->{connect_to} ||= AE::timer
118 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
119 0,
120 sub {
121 $self->transport_error (transport_error => $self->{id}, "unable to connect");
122 };
123
124 return unless @addresses;
125
126 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]");
127
128 unless ($self->{connect_w}) {
129 my @endpoints;
130
131 $self->{connect_w} = AE::timer
132 rand,
133 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
134 sub {
135 @endpoints = @addresses
136 unless @endpoints;
137
138 my $endpoint = shift @endpoints;
139
140 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint");
141
142 $self->{trial}{$endpoint} ||= do {
143 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
144 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference.");
145
146 AnyEvent::MP::Transport::mp_connect
147 $host, $port,
148 sub { delete $self->{trial}{$endpoint} },
149 };
150 }
151 ;
152 }
153}
154
155sub kill {
156 my ($self, $port, @reason) = @_;
157
158 $self->send (["", kil => $port, @reason]);
159}
160
161sub monitor {
162 my ($self, $portid, $cb) = @_;
163
164 my $list = $self->{lmon}{$portid} ||= [];
165
166 $self->send (["", mon1 => $portid])
167 unless @$list || !length $portid;
168
169 push @$list, $cb;
170}
171
172sub unmonitor {
173 my ($self, $portid, $cb) = @_;
174
175 my $list = $self->{lmon}{$portid}
176 or return;
177
178 @$list = grep $_ != $cb, @$list;
179
180 unless (@$list) {
181 $self->send (["", mon0 => $portid]);
182 delete $self->{monitor}{$portid};
183 }
184}
185
186# used for direct slave connections as well
187package AnyEvent::MP::Node::Direct;
188
189use base "AnyEvent::MP::Node::External";
190
191package AnyEvent::MP::Node::Self;
192
193use base "AnyEvent::MP::Node";
194
195sub connect {
196 # we are trivially connected
197}
198
71sub clr_transport { 199sub transport_reset {
72 my ($self) = @_; 200 my ($self) = @_;
73 201
74 delete $self->{transport};
75 warn "clr_transport\n";
76}
77
78sub connect {
79 my ($self) = @_;
80
81 Scalar::Util::weaken $self; 202 Scalar::Util::weaken $self;
82 203
83 unless (exists $self->{n_noderef}) { 204 $self->{send} = sub {
84 (AnyEvent::MP::normalise_noderef ($self->{noderef}))->cb (sub { 205 local $AnyEvent::MP::Kernel::SRCNODE = $self;
85 $self or return; 206 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
86 my $noderef = shift->recv;
87
88 $self->{n_noderef} = $noderef;
89
90 $AnyEvent::MP::NODE{$_} = $self
91 for split /,/, $noderef;
92
93 $self->connect;
94 });
95 return;
96 }
97
98 $self->{retry} ||= [split /,/, $self->{n_noderef}];
99
100 my $endpoint = shift @{ $self->{retry} };
101
102 if (defined $endpoint) {
103 $self->{trial}{$endpoint} ||= do {
104 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
105 or return;
106
107 my ($w, $g);
108
109 $w = AE::timer $AnyEvent::MP::CONNECT_TIMEOUT, 0, sub {
110 delete $self->{trial}{$endpoint};
111 };
112 $g = AnyEvent::MP::Transport::mp_connect
113 $host, $port,
114 sub {
115 delete $self->{trial}{$endpoint}
116 unless @_;
117 $g = shift;
118 };
119 ;
120
121 [$w, \$g]
122 };
123 } else {
124 delete $self->{retry};
125 }
126
127 $self->{next_connect} = AE::timer $AnyEvent::MP::CONNECT_INTERVAL, 0, sub {
128 $self->connect;
129 }; 207 };
130} 208}
131 209
132package AnyEvent::MP::Node::Self; 210sub transport_connect {
211 my ($self, $tp) = @_;
133 212
134use base "AnyEvent::MP::Node"; 213 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})");
135
136sub set_transport {
137 die "FATAL error, set_transport was called";
138} 214}
139 215
140sub send { 216sub kill {
141 AnyEvent::MP::_inject ($_[1]); 217 my ($self, $port, @reason) = @_;
218
219 delete $AnyEvent::MP::Kernel::PORT{$port};
220 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
221
222 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
223 or !@reason
224 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
225
226 $_->(@reason) for values %$mon;
227}
228
229sub monitor {
230 my ($self, $portid, $cb) = @_;
231
232 return $cb->(no_such_port => "cannot monitor nonexistent port")
233 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
234
235 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
236}
237
238sub unmonitor {
239 my ($self, $portid, $cb) = @_;
240
241 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
142} 242}
143 243
144=head1 SEE ALSO 244=head1 SEE ALSO
145 245
146L<AnyEvent>. 246L<AnyEvent::MP>.
147 247
148=head1 AUTHOR 248=head1 AUTHOR
149 249
150 Marc Lehmann <schmorp@schmorp.de> 250 Marc Lehmann <schmorp@schmorp.de>
151 http://home.schmorp.de/ 251 http://home.schmorp.de/

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