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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.30 by root, Fri Aug 28 20:57:42 2009 UTC vs.
Revision 1.50 by root, Wed Dec 30 15:49:05 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
… …
56 push @{$self->{queue}}, shift; 58 push @{$self->{queue}}, shift;
57 $self->connect; 59 $self->connect;
58 }; 60 };
59} 61}
60 62
61# called only after successful handshake 63# called each time we fail to establish a connection,
64# or the existing connection failed
62sub transport_error { 65sub transport_error {
63 my ($self, @reason) = @_; 66 my ($self, @reason) = @_;
64 67
65 my $no_transport = !$self->{transport}; 68 my $no_transport = !$self->{transport};
66 69
… …
74 $_->(@reason) for map @$_, values %$mon; 77 $_->(@reason) for map @$_, values %$mon;
75 } 78 }
76 79
77 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason) 80 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
78 unless $no_transport; 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} || $self->{connect_to};
79} 86}
80 87
81# called after handshake was successful 88# called after handshake was successful
82sub transport_connect { 89sub transport_connect {
83 my ($self, $transport) = @_; 90 my ($self, $transport) = @_;
… …
85 delete $self->{trial}; 92 delete $self->{trial};
86 93
87 $self->transport_error (transport_error => "switched connections") 94 $self->transport_error (transport_error => "switched connections")
88 if $self->{transport}; 95 if $self->{transport};
89 96
97 delete $self->{connect_addr};
90 delete $self->{connect_w}; 98 delete $self->{connect_w};
91 delete $self->{connect_to}; 99 delete $self->{connect_to};
92 100
93 $self->{transport} = $transport; 101 $self->{transport} = $transport;
94 102
95 my $transport_send = $transport->can ("send"); 103 my $transport_send = $transport->can ("send");
96 104
105 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
106
97 $self->{send} = sub { 107 $self->{send} = sub {
98 $transport_send->($transport, $_[0]); 108 $transport_send->($transport, $_[0]);
99 }; 109 };
100 110
101 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
102
103 $transport->send ($_) 111 $transport->send ($_)
104 for @{ delete $self->{queue} || [] }; 112 for @{ delete $self->{queue} || [] };
105} 113}
106 114
107sub connect { 115sub connect {
… …
109 117
110 return if $self->{transport}; 118 return if $self->{transport};
111 119
112 Scalar::Util::weaken $self; 120 Scalar::Util::weaken $self;
113 121
122 my $monitor = $AnyEvent::MP::Kernel::CONFIG->{monitor_timeout};
123
114 $self->{connect_to} ||= AE::timer 124 $self->{connect_to} ||= AE::timer $monitor, 0, sub {
115 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
116 0,
117 sub {
118 $self->transport_error (transport_error => $self->{id}, "unable to connect"); 125 $self->transport_error (transport_error => $self->{id}, "unable to connect");
126 };
127
128 return unless @addresses;
129
130 if ($self->{connect_w}) {
131 # sometimes we get told about new addresses after we started to connect
132 unshift @{$self->{connect_addr}}, @addresses;
133 return;
134 }
135
136 $self->{connect_addr} = \@addresses; # a bit weird, but efficient
137
138 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]");
139
140 my $interval = $AnyEvent::MP::Kernel::CONFIG->{connect_interval};
141
142 $interval = ($monitor - $interval) / @addresses
143 if ($monitor - $interval) / @addresses < $interval;
144
145 $interval = 0.4 if $interval < 0.4;
146
147 my @endpoints;
148
149 $self->{connect_w} = AE::timer 0.050 * rand, $interval * (0.9 + 0.1 * rand), sub {
150 @endpoints = @addresses
151 unless @endpoints;
152
153 my $endpoint = shift @endpoints;
154
155 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint");
156
157 $self->{trial}{$endpoint} ||= do {
158 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
159 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference.");
160
161 AnyEvent::MP::Transport::mp_connect
162 $host, $port,
163 sub { delete $self->{trial}{$endpoint} },
119 }; 164 };
120
121 return unless @addresses;
122
123 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} with [@addresses]");
124
125 unless ($self->{connect_w}) {
126 my @endpoints;
127
128 $self->{connect_w} = AE::timer
129 rand,
130 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
131 sub {
132 @endpoints = @addresses
133 unless @endpoints;
134
135 my $endpoint = shift @endpoints;
136
137 $AnyEvent::MP::Kernel::WARN->(9, "connecting to $self->{id} at $endpoint");
138
139 $self->{trial}{$endpoint} ||= do {
140 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
141 or return $AnyEvent::MP::Kernel::WARN->(1, "$self->{id}: not a resolved node reference.");
142
143 AnyEvent::MP::Transport::mp_connect
144 $host, $port,
145 sub { delete $self->{trial}{$endpoint} },
146 };
147 }
148 ;
149 } 165 };
150} 166}
151 167
152sub kill { 168sub kill {
153 my ($self, $port, @reason) = @_; 169 my ($self, $port, @reason) = @_;
154 170
… …
191 207
192sub connect { 208sub connect {
193 # we are trivially connected 209 # we are trivially connected
194} 210}
195 211
212# delay every so often to avoid recursion, also used to delay after spawn
213our $DELAY = -50;
214our @DELAY;
215our $DELAY_W;
216
217sub _send_delayed {
218 local $AnyEvent::MP::Kernel::SRCNODE = $AnyEvent::MP::Kernel::NODE{""};
219 (shift @DELAY)->()
220 while @DELAY;
221 undef $DELAY_W;
222 $DELAY = -50;
223}
224
196sub transport_reset { 225sub transport_reset {
197 my ($self) = @_; 226 my ($self) = @_;
198 227
199 Scalar::Util::weaken $self; 228 Scalar::Util::weaken $self;
200 229
201 $self->{send} = sub { 230 $self->{send} = sub {
231 if ($DELAY++ >= 0) {
232 my $msg = $_[0];
233 push @DELAY, sub { AnyEvent::MP::Kernel::_inject (@$msg) };
234 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed;
235 return;
236 }
237
202 local $AnyEvent::MP::Kernel::SRCNODE = $self; 238 local $AnyEvent::MP::Kernel::SRCNODE = $self;
203 AnyEvent::MP::Kernel::_inject (@{ $_[0] }); 239 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
204 }; 240 };
205} 241}
206 242
… …
209 245
210 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})"); 246 $AnyEvent::MP::Kernel::WARN->(9, "I refuse to talk to myself ($tp->{peerhost}:$tp->{peerport})");
211} 247}
212 248
213sub kill { 249sub kill {
214 my ($self, $port, @reason) = @_; 250 my (undef, @args) = @_;
215 251
216 delete $AnyEvent::MP::Kernel::PORT{$port}; 252 # we _always_ delay kil's, to avoid calling mon callbacks
217 delete $AnyEvent::MP::Kernel::PORT_DATA{$port}; 253 # from anything but the event loop context.
218 254 $DELAY = 1;
219 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port} 255 push @DELAY, sub { AnyEvent::MP::Kernel::_kill (@args) };
220 or !@reason 256 $DELAY_W ||= AE::timer 0, 0, \&_send_delayed;
221 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
222
223 $_->(@reason) for values %$mon;
224} 257}
225 258
226sub monitor { 259sub monitor {
227 my ($self, $portid, $cb) = @_; 260 # maybe always delay, too?
228 261 if ($DELAY_W) {
229 return $cb->(no_such_port => "cannot monitor nonexistent port") 262 my @args = @_;
230 unless exists $AnyEvent::MP::Kernel::PORT{$portid}; 263 push @DELAY, sub { AnyEvent::MP::Kernel::_monitor (@args) };
231 264 return;
232 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb; 265 }
266 &AnyEvent::MP::Kernel::_monitor;
233} 267}
234 268
235sub unmonitor { 269sub unmonitor {
236 my ($self, $portid, $cb) = @_; 270 # no need to always delay
271 if ($DELAY_W) {
272 my @args = @_;
273 push @DELAY, sub { AnyEvent::MP::Kernel::_unmonitor (@args) };
274 return;
275 }
237 276
238 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0}; 277 &AnyEvent::MP::Kernel::_unmonitor;
239} 278}
240 279
241=head1 SEE ALSO 280=head1 SEE ALSO
242 281
243L<AnyEvent::MP>. 282L<AnyEvent::MP>.

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