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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.27 by root, Thu Aug 27 07:12:48 2009 UTC vs.
Revision 1.40 by root, Tue Sep 8 20:56:05 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
28 $self->init; 30 $self->init;
29 $self->transport_reset; 31 $self->transport_reset;
30 32
31 $self 33 $self
… …
54 56
55 $self->{send} = sub { 57 $self->{send} = sub {
56 push @{$self->{queue}}, shift; 58 push @{$self->{queue}}, shift;
57 $self->connect; 59 $self->connect;
58 }; 60 };
59
60 $self->connect
61 if $self->{autoconnect};
62} 61}
63 62
64# called only after successful handshake 63# called each time we fail to establish a connection,
64# or the existing connection failed
65sub transport_error { 65sub transport_error {
66 my ($self, @reason) = @_; 66 my ($self, @reason) = @_;
67 67
68 my $no_transport = !$self->{transport}; 68 my $no_transport = !$self->{transport};
69 69
70 delete $self->{connect_w}; 70 delete $self->{connect_w};
71 delete $self->{connect_to}; 71 delete $self->{connect_to};
72 72
73 delete $self->{queue}; 73 delete $self->{queue};
74 $self->transport_reset; 74 $self->transport_reset;
75
76 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
77 unless $no_transport;
78 75
79 if (my $mon = delete $self->{lmon}) { 76 if (my $mon = delete $self->{lmon}) {
80 $_->(@reason) for map @$_, values %$mon; 77 $_->(@reason) for map @$_, values %$mon;
81 } 78 }
79
80 AnyEvent::MP::Kernel::_inject_nodeevent ($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} || $self->{connect_to};
82} 86}
83 87
84# called after handshake was successful 88# called after handshake was successful
85sub transport_connect { 89sub transport_connect {
86 my ($self, $transport) = @_; 90 my ($self, $transport) = @_;
87 91
92 delete $self->{trial};
93
88 $self->transport_error (transport_error => "switched connections") 94 $self->transport_error (transport_error => "switched connections")
89 if $self->{transport}; 95 if $self->{transport};
90 96
91 delete $self->{connect_w}; 97 delete $self->{connect_w};
92 delete $self->{connect_to}; 98 delete $self->{connect_to};
… …
104 $transport->send ($_) 110 $transport->send ($_)
105 for @{ delete $self->{queue} || [] }; 111 for @{ delete $self->{queue} || [] };
106} 112}
107 113
108sub connect { 114sub connect {
109 my ($self) = @_; 115 my ($self, @addresses) = @_;
110 116
111 return if $self->{transport}; 117 return if $self->{transport};
112 118
113 # just ignore connect requests for slave nodes - let's hope it connects to us instead
114 return if $self->{noderef} =~ /^slave\//;
115
116 Scalar::Util::weaken $self; 119 Scalar::Util::weaken $self;
117 120
121 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
122
118 $self->{connect_to} ||= AE::timer 123 $self->{connect_to} ||= AE::timer $monitor, 0, sub {
119 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
120 0,
121 sub {
122 $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} },
123 }; 156 };
124
125 unless ($self->{connect_w}) {
126 my @endpoints;
127 my %trial;
128
129 $self->{connect_w} = AE::timer
130 rand,
131 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
132 sub {
133 @endpoints = split /,/, $self->{noderef}
134 unless @endpoints;
135
136 my $endpoint = shift @endpoints;
137
138 $trial{$endpoint} ||= do {
139 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
140 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{noderef}: not a resolved node reference.");
141
142 AnyEvent::MP::Transport::mp_connect
143 $host, $port,
144 sub { delete $trial{$endpoint} }
145 ;
146 };
147 }
148 ;
149 } 157 };
150} 158}
151 159
152sub kill { 160sub kill {
153 my ($self, $port, @reason) = @_; 161 my ($self, $port, @reason) = @_;
154 162
… …
191 199
192sub connect { 200sub connect {
193 # we are trivially connected 201 # we are trivially connected
194} 202}
195 203
204# delay every so often to avoid recursion, also used to delay after spawn
205our $DELAY;
206our @DELAY;
207our $DELAY_W;
208
209sub _send_delayed {
210 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE{""};
211 (shift @DELAY)->()
212 while @DELAY;
213 undef $DELAY_W;
214 $DELAY = -50;
215}
216
196sub transport_reset { 217sub transport_reset {
197 my ($self) = @_; 218 my ($self) = @_;
198 219
199 Scalar::Util::weaken $self; 220 Scalar::Util::weaken $self;
200 221
201 $self->{send} = sub { 222 $self->{send} = sub {
223 if ($DELAY++ >= 0) {
224 my $msg = $_[0];
225 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) };
226 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed;
227 return;
228 }
229
202 local $AnyEvent::MP::Kernel::SRCNODE = $self; 230 local $AnyEvent::MP::Kernel::SRCNODE = $self;
203 AnyEvent::MP::Kernel::_inject (@{ $_[0] }); 231 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
204 }; 232 };
205} 233}
206 234
235sub transport_connect {
236 my ($self, $tp) = @_;
237
238 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})");
239}
240
207sub kill { 241sub kill {
208 my ($self, $port, @reason) = @_; 242 my ($self, $port, @reason) = @_;
209 243
244 my $delay_cb = sub {
210 delete $AnyEvent::MP::Kernel::PORT{$port}; 245 delete $AnyEvent::MP::Kernel::PORT{$port};
211 delete $AnyEvent::MP::Kernel::PORT_DATA{$port}; 246 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
212 247
213 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port} 248 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
214 or !@reason 249 or !@reason
215 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason"); 250 or $AnyEvent::MP::Kernel::WARN->(8, "unmonitored local port $port died with reason: @reason");
216 251
217 $_->(@reason) for values %$mon; 252 $_->(@reason) for values %$mon;
253 };
254
255 $DELAY_W ? push @DELAY, $delay_cb : &$delay_cb;
218} 256}
219 257
220sub monitor { 258sub monitor {
221 my ($self, $portid, $cb) = @_; 259 my ($self, $portid, $cb) = @_;
222 260
261 my $delay_cb = sub {
223 return $cb->(no_such_port => "cannot monitor nonexistent port") 262 return $cb->(no_such_port => "cannot monitor nonexistent port", "$self->{id}#$portid")
224 unless exists $AnyEvent::MP::Kernel::PORT{$portid}; 263 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
225 264
226 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb; 265 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
266 };
267
268 $DELAY_W ? push @DELAY, $delay_cb : &$delay_cb;
227} 269}
228 270
229sub unmonitor { 271sub unmonitor {
230 my ($self, $portid, $cb) = @_; 272 my ($self, $portid, $cb) = @_;
231 273
274 my $delay_cb = sub {
232 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0}; 275 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
276 };
277
278 $DELAY_W ? push @DELAY, $delay_cb : &$delay_cb;
233} 279}
234 280
235=head1 SEE ALSO 281=head1 SEE ALSO
236 282
237L<AnyEvent::MP>. 283L<AnyEvent::MP>.

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