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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.18 by root, Wed Aug 12 21:39:59 2009 UTC vs.
Revision 1.33 by root, Sun Aug 30 21:45:51 2009 UTC

1=head1 NAME 1=head1 NAME
2 2
3AnyEvent::MP::Node - a single processing node (CPU/process...) 3AnyEvent::MP::Node - represent a node
4 4
5=head1 SYNOPSIS 5=head1 SYNOPSIS
6 6
7 use AnyEvent::MP::Node; 7 use AnyEvent::MP::Node;
8 8
9=head1 DESCRIPTION 9=head1 DESCRIPTION
10
11This is an internal utility module, horrible to look at, so don't.
10 12
11=cut 13=cut
12 14
13package AnyEvent::MP::Node; 15package AnyEvent::MP::Node;
14 16
… …
19use AnyEvent::Socket (); 21use AnyEvent::Socket ();
20 22
21use AnyEvent::MP::Transport (); 23use AnyEvent::MP::Transport ();
22 24
23sub new { 25sub new {
24 my ($self, $noderef) = @_; 26 my ($self, $id) = @_;
25 27
26 $self = bless { noderef => $noderef }, $self; 28 $self = bless { id => $id }, $self;
27 29
30 $self->init;
28 $self->transport_reset; 31 $self->transport_reset;
29 32
30 $self 33 $self
31} 34}
32 35
36sub init {
37 #
38}
39
33sub send { 40sub send {
34 &{$_[0]->{send}} 41 &{ shift->{send} }
35} 42}
36 43
44# nodes reachable via the network
37package AnyEvent::MP::Node::External; 45package AnyEvent::MP::Node::External;
38 46
39use base "AnyEvent::MP::Node"; 47use base "AnyEvent::MP::Node";
40 48
41# called at init time, mostly sets {send} 49# called at init time, mostly sets {send}
42sub transport_reset { 50sub transport_reset {
43 my ($self) = @_; 51 my ($self) = @_;
44 52
45 delete $self->{transport}; 53 delete $self->{transport};
46 54
55 Scalar::Util::weaken $self;
56
47 $self->{send} = sub { 57 $self->{send} = sub {
48 push @{$_[0]{queue}}, $_[1]; 58 push @{$self->{queue}}, shift;
49 $_[0]->connect; 59 $self->connect;
50 }; 60 };
51} 61}
52 62
53# called only after successful handshake 63# called each time we fail to establish a connection,
64# or the existing connection failed
54sub transport_error { 65sub transport_error {
55 my ($self, @reason) = @_; 66 my ($self, @reason) = @_;
67
68 my $no_transport = !$self->{transport};
69
70 delete $self->{connect_w};
71 delete $self->{connect_to};
56 72
57 delete $self->{queue}; 73 delete $self->{queue};
58 $self->transport_reset; 74 $self->transport_reset;
59 75
60 if (my $mon = delete $self->{lmon}) { 76 if (my $mon = delete $self->{lmon}) {
61 $_->(@reason) for map @$_, values %$mon; 77 $_->(@reason) for map @$_, values %$mon;
62 } 78 }
79
80 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
81 unless $no_transport;
82
83 # if we are here and are idle, we nuke ourselves
84 delete $AnyEvent::MP::Kernel::NODE{$self->{id}}
85 unless $self->{transport} || $self->{connect_to};
63} 86}
64 87
65# called after handshake was successful 88# called after handshake was successful
66sub transport_connect { 89sub transport_connect {
67 my ($self, $transport) = @_; 90 my ($self, $transport) = @_;
68 91
69 $self->transport_reset 92 delete $self->{trial};
93
94 $self->transport_error (transport_error => "switched connections")
70 if $self->{transport}; 95 if $self->{transport};
71 96
72 delete $self->{connect_w}; 97 delete $self->{connect_w};
73 delete $self->{connect_to}; 98 delete $self->{connect_to};
74 99
75 $self->{transport} = $transport; 100 $self->{transport} = $transport;
76 101
102 my $transport_send = $transport->can ("send");
103
77 $self->{send} = sub { 104 $self->{send} = sub {
78 $transport->send ($_[1]); 105 $transport_send->($transport, $_[0]);
79 }; 106 };
107
108 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
80 109
81 $transport->send ($_) 110 $transport->send ($_)
82 for @{ delete $self->{queue} || [] }; 111 for @{ delete $self->{queue} || [] };
83} 112}
84 113
85sub connect { 114sub connect {
86 my ($self) = @_; 115 my ($self, @addresses) = @_;
116
117 return if $self->{transport};
87 118
88 Scalar::Util::weaken $self; 119 Scalar::Util::weaken $self;
89 120
90 $self->{connect_to} ||= AE::timer
91 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT, 121 my $monitor = $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT;
92 0, 122
93 sub { 123 $self->{connect_to} ||= AE::timer $monitor, 0, sub {
94 $self->transport_error (transport_error => $self->{noderef}, "unable to connect"); 124 $self->transport_error (transport_error => $self->{id}, "unable to connect");
125 };
126
127 return unless @addresses;
128 return if $self->{connect_w};
129
130 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]");
131
132 my $interval = $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL;
133
134 $interval = ($monitor - $interval) / @addresses
135 if ($monitor - $interval) / @addresses < $interval;
136
137 $interval = 0.4 if $interval < 0.4;
138
139 my @endpoints;
140
141 $self->{connect_w} = AE::timer rand, $interval, sub {
142 @endpoints = @addresses
143 unless @endpoints;
144
145 my $endpoint = shift @endpoints;
146
147 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint");
148
149 $self->{trial}{$endpoint} ||= do {
150 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
151 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference.");
152
153 AnyEvent::MP::Transport::mp_connect
154 $host, $port,
155 sub { delete $self->{trial}{$endpoint} },
95 }; 156 };
96
97 unless ($self->{connect_w}) {
98 my @endpoints;
99 my %trial;
100
101 $self->{connect_w} = AE::timer
102 0,
103 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
104 sub {
105 @endpoints = split /,/, $self->{noderef}
106 unless @endpoints;
107
108 my $endpoint = shift @endpoints;
109
110 $trial{$endpoint} ||= do {
111 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
112 or return $AnyEvent::MP::Kernel::WARN->("$self->{noderef}: not a resolved node reference.");
113
114 AnyEvent::MP::Transport::mp_connect
115 $host, $port,
116 sub { delete $trial{$endpoint} }
117 ;
118 };
119 }
120 ;
121 } 157 };
122} 158}
123 159
124sub kill { 160sub kill {
125 my ($self, $port, @reason) = @_; 161 my ($self, $port, @reason) = @_;
126 162
… …
131 my ($self, $portid, $cb) = @_; 167 my ($self, $portid, $cb) = @_;
132 168
133 my $list = $self->{lmon}{$portid} ||= []; 169 my $list = $self->{lmon}{$portid} ||= [];
134 170
135 $self->send (["", mon1 => $portid]) 171 $self->send (["", mon1 => $portid])
136 unless @$list; 172 unless @$list || !length $portid;
137 173
138 push @$list, $cb; 174 push @$list, $cb;
139} 175}
140 176
141sub unmonitor { 177sub unmonitor {
… …
150 $self->send (["", mon0 => $portid]); 186 $self->send (["", mon0 => $portid]);
151 delete $self->{monitor}{$portid}; 187 delete $self->{monitor}{$portid};
152 } 188 }
153} 189}
154 190
191# used for direct slave connections as well
155package AnyEvent::MP::Node::Direct; 192package AnyEvent::MP::Node::Direct;
156 193
157use base "AnyEvent::MP::Node::External"; 194use base "AnyEvent::MP::Node::External";
158 195
159package AnyEvent::MP::Node::Indirect; 196package AnyEvent::MP::Node::Self;
160 197
161use base "AnyEvent::MP::Node::Direct"; 198use base "AnyEvent::MP::Node";
162 199
163sub connect { 200sub connect {
164 my ($self) = @_; 201 # we are trivially connected
165
166 $self->transport_error (transport_error => $self->{noderef}, "unable to connect to indirect node");
167} 202}
168
169package AnyEvent::MP::Node::Self;
170
171use base "AnyEvent::MP::Node";
172 203
173sub transport_reset { 204sub transport_reset {
174 my ($self) = @_; 205 my ($self) = @_;
175 206
207 Scalar::Util::weaken $self;
208
176 $self->{send} = sub { 209 $self->{send} = sub {
177 local $AnyEvent::MP::Kernel::SRCNODE = $_[0]; 210 local $AnyEvent::MP::Kernel::SRCNODE = $self;
178 AnyEvent::MP::Kernel::_inject (@{ $_[1] }); 211 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
179 }; 212 };
213}
214
215sub transport_connect {
216 my ($self, $tp) = @_;
217
218 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})");
180} 219}
181 220
182sub kill { 221sub kill {
183 my ($self, $port, @reason) = @_; 222 my ($self, $port, @reason) = @_;
184 223
185 delete $AnyEvent::MP::Kernel::PORT{$port}; 224 delete $AnyEvent::MP::Kernel::PORT{$port};
186 delete $AnyEvent::MP::Kernel::PORT_DATA{$port}; 225 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
187 226
188 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port} 227 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
189 or !@reason 228 or !@reason
190 or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason"); 229 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
191 230
192 $_->(@reason) for values %$mon; 231 $_->(@reason) for values %$mon;
193} 232}
194 233
195sub monitor { 234sub monitor {

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