ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/AnyEvent-MP/MP/Node.pm
(Generate patch)

Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.25 by root, Sat Aug 15 15:08:07 2009 UTC vs.
Revision 1.36 by root, Fri Sep 4 21:01:22 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
34}
35
36sub init {
37 #
31} 38}
32 39
33sub send { 40sub send {
34 &{ shift->{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}
… …
48 56
49 $self->{send} = sub { 57 $self->{send} = sub {
50 push @{$self->{queue}}, shift; 58 push @{$self->{queue}}, shift;
51 $self->connect; 59 $self->connect;
52 }; 60 };
53
54 $self->connect
55 if $self->{autoconnect};
56} 61}
57 62
58# called only after successful handshake 63# called each time we fail to establish a connection,
64# or the existing connection failed
59sub transport_error { 65sub transport_error {
60 my ($self, @reason) = @_; 66 my ($self, @reason) = @_;
61 67
62 my $no_transport = !$self->{transport}; 68 my $no_transport = !$self->{transport};
63 69
64 delete $self->{connect_w}; 70 delete $self->{connect_w};
65 delete $self->{connect_to}; 71 delete $self->{connect_to};
66 72
67 delete $self->{queue}; 73 delete $self->{queue};
68 $self->transport_reset; 74 $self->transport_reset;
69
70 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
71 unless $no_transport;
72 75
73 if (my $mon = delete $self->{lmon}) { 76 if (my $mon = delete $self->{lmon}) {
74 $_->(@reason) for map @$_, values %$mon; 77 $_->(@reason) for map @$_, values %$mon;
75 } 78 }
79
80 AnyEvent::MP::Kernel::_inject_nodeevent ($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} || $self->{connect_to};
76} 86}
77 87
78# called after handshake was successful 88# called after handshake was successful
79sub transport_connect { 89sub transport_connect {
80 my ($self, $transport) = @_; 90 my ($self, $transport) = @_;
81 91
82 # first connect with a master node 92 delete $self->{trial};
83 $AnyEvent::MP::Kernel::SLAVE->($self)
84 if ref $AnyEvent::MP::Kernel::SLAVE;
85 93
86 $self->transport_error (transport_error => "switched connections") 94 $self->transport_error (transport_error => "switched connections")
87 if $self->{transport}; 95 if $self->{transport};
88 96
89 delete $self->{connect_w}; 97 delete $self->{connect_w};
… …
102 $transport->send ($_) 110 $transport->send ($_)
103 for @{ delete $self->{queue} || [] }; 111 for @{ delete $self->{queue} || [] };
104} 112}
105 113
106sub connect { 114sub connect {
107 my ($self) = @_; 115 my ($self, @addresses) = @_;
108 116
109 return if $self->{transport}; 117 return if $self->{transport};
110 118
111 Scalar::Util::weaken $self; 119 Scalar::Util::weaken $self;
112 120
121 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
122
113 $self->{connect_to} ||= AE::timer 123 $self->{connect_to} ||= AE::timer $monitor, 0, sub {
114 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
115 0,
116 sub {
117 $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::Kernel::CONFIG->{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 0.050 * rand, $interval * (0.9 + 0.1 * rand), 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} },
118 }; 156 };
119
120 unless ($self->{connect_w}) {
121 my @endpoints;
122 my %trial;
123
124 $self->{connect_w} = AE::timer
125 0,
126 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
127 sub {
128 @endpoints = split /,/, $self->{noderef}
129 unless @endpoints;
130
131 my $endpoint = shift @endpoints;
132
133 $trial{$endpoint} ||= do {
134 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
135 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{noderef}: not a resolved node reference.");
136
137 AnyEvent::MP::Transport::mp_connect
138 $host, $port,
139 sub { delete $trial{$endpoint} }
140 ;
141 };
142 }
143 ;
144 } 157 };
145} 158}
146 159
147sub kill { 160sub kill {
148 my ($self, $port, @reason) = @_; 161 my ($self, $port, @reason) = @_;
149 162
… …
173 $self->send (["", mon0 => $portid]); 186 $self->send (["", mon0 => $portid]);
174 delete $self->{monitor}{$portid}; 187 delete $self->{monitor}{$portid};
175 } 188 }
176} 189}
177 190
191# used for direct slave connections as well
178package AnyEvent::MP::Node::Direct; 192package AnyEvent::MP::Node::Direct;
179 193
180use base "AnyEvent::MP::Node::External"; 194use base "AnyEvent::MP::Node::External";
181
182package AnyEvent::MP::Node::Indirect;
183
184use base "AnyEvent::MP::Node::Direct";
185
186sub master {
187 my ($self) = @_;
188
189 my (undef, $master) = split /\@/, $self->{noderef}, 2;
190 $master =~ s/!/,/g;
191 $master
192}
193
194sub transport_reset {
195 my ($self) = @_;
196
197 if ($self->{transport}) {
198 # as an optimisation, immediately nuke slave nodes
199 delete $AnyEvent::MP::Kernel::NODE{$self->{noderef}};
200 } else {
201 $self->SUPER::transport_reset;
202 return;#d##TODO#
203
204 my $noderef = $self->{noderef};
205 my $master = $self->master;
206
207 # slave nodes are so cool - we can always send to them :)
208
209 $self->{send} = sub {
210 $self->connect;
211 snd $master, snd => $noderef, @_;
212 };
213 }
214}
215
216sub connect {
217 my ($self) = @_;
218
219 #TODO#
220# # ask for a connection, #TODO# rate-limit this somehow
221# snd $self->master, relay => $self->{noderef}, connect_node => $AnyEvent::MP::Kernel::NODE;
222}
223 195
224package AnyEvent::MP::Node::Self; 196package AnyEvent::MP::Node::Self;
225 197
226use base "AnyEvent::MP::Node"; 198use base "AnyEvent::MP::Node";
227 199
… …
238 local $AnyEvent::MP::Kernel::SRCNODE = $self; 210 local $AnyEvent::MP::Kernel::SRCNODE = $self;
239 AnyEvent::MP::Kernel::_inject (@{ $_[0] }); 211 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
240 }; 212 };
241} 213}
242 214
215sub transport_connect {
216 my ($self, $tp) = @_;
217
218 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})");
219}
220
243sub kill { 221sub kill {
244 my ($self, $port, @reason) = @_; 222 my ($self, $port, @reason) = @_;
245 223
246 delete $AnyEvent::MP::Kernel::PORT{$port}; 224 delete $AnyEvent::MP::Kernel::PORT{$port};
247 delete $AnyEvent::MP::Kernel::PORT_DATA{$port}; 225 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
248 226
249 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port} 227 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
250 or !@reason 228 or !@reason
251 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason"); 229 or $AnyEvent::MP::Kernel::WARN->(8, "unmonitored local port $port died with reason: @reason");
252 230
253 $_->(@reason) for values %$mon; 231 $_->(@reason) for values %$mon;
254} 232}
255 233
256sub monitor { 234sub monitor {

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines