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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.4 by root, Sat Aug 1 15:04:30 2009 UTC vs.
Revision 1.22 by root, Thu Aug 13 22:50:47 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, $noderef) = @_;
28 25
29 bless { noderef => $noderef }, $class 26 $self = bless { noderef => $noderef }, $self;
30}
31 27
28 $self->transport_reset;
29
30 $self
31}
32
33sub send {
34 &{ shift->{send} }
35}
36
32package AnyEvent::MP::Node::Direct; 37package AnyEvent::MP::Node::External;
33 38
34use base "AnyEvent::MP::Node"; 39use base "AnyEvent::MP::Node";
35 40
36sub send { 41# called at init time, mostly sets {send}
42sub transport_reset {
37 my ($self, $msg) = @_; 43 my ($self) = @_;
38 44
39 if ($self->{transport}) { 45 delete $self->{transport};
40 $self->{transport}->send ($msg); 46
41 } elsif ($self->{queue}) { 47 Scalar::Util::weaken $self;
48
49 $self->{send} = sub {
42 push @{ $self->{queue} }, $msg; 50 push @{$self->{queue}}, shift;
43 } else {
44 $self->{queue} = [$msg];
45 $self->connect; 51 $self->connect;
52 };
53}
54
55# called only after successful handshake
56sub transport_error {
57 my ($self, @reason) = @_;
58
59 my $no_transport = !$self->{transport};
60
61 delete $self->{connect_w};
62 delete $self->{connect_to};
63
64 delete $self->{queue};
65 $self->transport_reset;
66
67 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
68 unless $no_transport;
69
70 if (my $mon = delete $self->{lmon}) {
71 $_->(@reason) for map @$_, values %$mon;
46 } 72 }
47} 73}
48 74
49sub set_transport { 75# called after handshake was successful
76sub transport_connect {
50 my ($self, $transport) = @_; 77 my ($self, $transport) = @_;
51 78
52 delete $self->{trial}; 79 $self->transport_error (transport_error => "switched connections")
80 if $self->{transport};
81
53 delete $self->{next_connect}; 82 delete $self->{connect_w};
83 delete $self->{connect_to};
54 84
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; 85 $self->{transport} = $transport;
86
87 my $transport_send = $transport->can ("send");
88
89 $self->{send} = sub {
90 $transport_send->($transport, $_[0]);
91 };
92
93 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
66 94
67 $transport->send ($_) 95 $transport->send ($_)
68 for @{ delete $self->{queue} || [] }; 96 for @{ delete $self->{queue} || [] };
69} 97}
70 98
71sub clr_transport {
72 my ($self) = @_;
73
74 delete $self->{transport};
75
76 $self->connect;
77}
78
79sub connect { 99sub connect {
80 my ($self) = @_; 100 my ($self) = @_;
81 101
82 Scalar::Util::weaken $self; 102 Scalar::Util::weaken $self;
83 103
84 unless (exists $self->{n_noderef}) { 104 $self->{connect_to} ||= AE::timer
85 (AnyEvent::MP::normalise_noderef ($self->{noderef}))->cb (sub { 105 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
86 $self or return; 106 0,
87 my $noderef = shift->recv; 107 sub {
88 108 $self->transport_error (transport_error => $self->{noderef}, "unable to connect");
89 $self->{n_noderef} = $noderef;
90
91 $AnyEvent::MP::NODE{$_} = $self
92 for split /,/, $noderef;
93
94 $self->connect;
95 }); 109 };
96 return; 110
111 unless ($self->{connect_w}) {
112 my @endpoints;
113 my %trial;
114
115 $self->{connect_w} = AE::timer
116 0,
117 $AnyEvent::MP::Config::CFG{connect_interval} || $AnyEvent::MP::Kernel::CONNECT_INTERVAL,
118 sub {
119 @endpoints = split /,/, $self->{noderef}
120 unless @endpoints;
121
122 my $endpoint = shift @endpoints;
123
124 $trial{$endpoint} ||= do {
125 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
126 or return $AnyEvent::MP::Kernel::WARN->("$self->{noderef}: not a resolved node reference.");
127
128 AnyEvent::MP::Transport::mp_connect
129 $host, $port,
130 sub { delete $trial{$endpoint} }
131 ;
132 };
133 }
134 ;
97 } 135 }
136}
98 137
99 $self->{retry} ||= [split /,/, $self->{n_noderef}]; 138sub kill {
139 my ($self, $port, @reason) = @_;
100 140
101 my $endpoint = shift @{ $self->{retry} }; 141 $self->send (["", kil => $port, @reason]);
142}
102 143
103 if (defined $endpoint) { 144sub monitor {
104 $self->{trial}{$endpoint} ||= do { 145 my ($self, $portid, $cb) = @_;
105 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 146
147 my $list = $self->{lmon}{$portid} ||= [];
148
149 $self->send (["", mon1 => $portid])
150 unless @$list;
151
152 push @$list, $cb;
153}
154
155sub unmonitor {
156 my ($self, $portid, $cb) = @_;
157
158 my $list = $self->{lmon}{$portid}
106 or return; 159 or return;
107 160
108 my ($w, $g); 161 @$list = grep $_ != $cb, @$list;
109 162
110 $w = AE::timer $AnyEvent::MP::CONNECT_TIMEOUT, 0, sub { 163 unless (@$list) {
111 delete $self->{trial}{$endpoint}; 164 $self->send (["", mon0 => $portid]);
112 }; 165 delete $self->{monitor}{$portid};
113 $g = AnyEvent::MP::Transport::mp_connect
114 $host, $port,
115 sub {
116 delete $self->{trial}{$endpoint}
117 unless @_;
118 $g = shift;
119 };
120 ;
121
122 [$w, \$g]
123 };
124 } else {
125 delete $self->{retry};
126 } 166 }
167}
127 168
128 $self->{next_connect} = AE::timer $AnyEvent::MP::CONNECT_INTERVAL, 0, sub { 169package AnyEvent::MP::Node::Direct;
129 $self->connect; 170
171use base "AnyEvent::MP::Node::External";
172
173package AnyEvent::MP::Node::Indirect;
174
175use base "AnyEvent::MP::Node::Direct";
176
177sub transport_reset {
178 my ($self) = @_;
179
180 # as an optimisation, immediately nuke slave nodes
181 delete $AnyEvent::MP::Kernel::NODE{$self->{noderef}}
182 if $self->{transport};
183
184 $self->SUPER::transport_reset;
185}
186
187sub connect {
188 my ($self) = @_;
189
190 $self->transport_error (transport_error => $self->{noderef}, "unable to connect to indirect node");
191}
192
193package AnyEvent::MP::Node::Self;
194
195use base "AnyEvent::MP::Node";
196
197sub connect {
198 # we are trivially connected
199}
200
201sub transport_reset {
202 my ($self) = @_;
203
204 Scalar::Util::weaken $self;
205
206 $self->{send} = sub {
207 local $AnyEvent::MP::Kernel::SRCNODE = $self;
208 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
130 }; 209 };
131} 210}
132 211
133package AnyEvent::MP::Node::Self; 212sub kill {
213 my ($self, $port, @reason) = @_;
134 214
135use base "AnyEvent::MP::Node"; 215 delete $AnyEvent::MP::Kernel::PORT{$port};
216 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
136 217
137sub set_transport { 218 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
138 die "FATAL error, set_transport was called"; 219 or !@reason
139} 220 or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason");
140 221
141sub send { 222 $_->(@reason) for values %$mon;
142 AnyEvent::MP::_inject ($_[1]); 223}
224
225sub monitor {
226 my ($self, $portid, $cb) = @_;
227
228 return $cb->(no_such_port => "cannot monitor nonexistent port")
229 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
230
231 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
232}
233
234sub unmonitor {
235 my ($self, $portid, $cb) = @_;
236
237 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
143} 238}
144 239
145=head1 SEE ALSO 240=head1 SEE ALSO
146 241
147L<AnyEvent>. 242L<AnyEvent::MP>.
148 243
149=head1 AUTHOR 244=head1 AUTHOR
150 245
151 Marc Lehmann <schmorp@schmorp.de> 246 Marc Lehmann <schmorp@schmorp.de>
152 http://home.schmorp.de/ 247 http://home.schmorp.de/

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