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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.17 by root, Mon Aug 10 01:37:19 2009 UTC vs.
Revision 1.22 by root, Thu Aug 13 22:50:47 2009 UTC

… …
19use AnyEvent::Socket (); 19use AnyEvent::Socket ();
20 20
21use AnyEvent::MP::Transport (); 21use AnyEvent::MP::Transport ();
22 22
23sub new { 23sub new {
24 my ($class, $noderef) = @_; 24 my ($self, $noderef) = @_;
25 25
26 bless { noderef => $noderef }, $class 26 $self = bless { noderef => $noderef }, $self;
27}
28 27
28 $self->transport_reset;
29
30 $self
31}
32
33sub send {
34 &{ shift->{send} }
35}
36
29package AnyEvent::MP::Node::Direct; 37package AnyEvent::MP::Node::External;
30 38
31use base "AnyEvent::MP::Node"; 39use base "AnyEvent::MP::Node";
32 40
33sub send { 41# called at init time, mostly sets {send}
42sub transport_reset {
34 my ($self, $msg) = @_; 43 my ($self) = @_;
35 44
36 if ($self->{transport}) { 45 delete $self->{transport};
37 $self->{transport}->send ($msg); 46
38 } elsif ($self->{queue}) { 47 Scalar::Util::weaken $self;
48
49 $self->{send} = sub {
39 push @{ $self->{queue} }, $msg; 50 push @{$self->{queue}}, shift;
40 } else {
41 $self->{queue} = [$msg];
42 $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 %$mon;
72 }
73}
74
75# called after handshake was successful
76sub transport_connect {
77 my ($self, $transport) = @_;
78
79 $self->transport_error (transport_error => "switched connections")
80 if $self->{transport};
81
82 delete $self->{connect_w};
83 delete $self->{connect_to};
84
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);
94
95 $transport->send ($_)
96 for @{ delete $self->{queue} || [] };
97}
98
99sub connect {
100 my ($self) = @_;
101
102 Scalar::Util::weaken $self;
103
104 $self->{connect_to} ||= AE::timer
105 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
106 0,
107 sub {
108 $self->transport_error (transport_error => $self->{noderef}, "unable to connect");
109 };
110
111 unless ($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 ;
43 } 135 }
44} 136}
45 137
46sub kill { 138sub kill {
47 my ($self, $port, @reason) = @_; 139 my ($self, $port, @reason) = @_;
… …
72 $self->send (["", mon0 => $portid]); 164 $self->send (["", mon0 => $portid]);
73 delete $self->{monitor}{$portid}; 165 delete $self->{monitor}{$portid};
74 } 166 }
75} 167}
76 168
169package AnyEvent::MP::Node::Direct;
170
171use base "AnyEvent::MP::Node::External";
172
173package AnyEvent::MP::Node::Indirect;
174
175use base "AnyEvent::MP::Node::Direct";
176
77sub set_transport { 177sub transport_reset {
78 my ($self, $transport) = @_; 178 my ($self) = @_;
79 179
80 $self->clr_transport 180 # as an optimisation, immediately nuke slave nodes
181 delete $AnyEvent::MP::Kernel::NODE{$self->{noderef}}
81 if $self->{transport}; 182 if $self->{transport};
82 183
83 delete $self->{trial}; 184 $self->SUPER::transport_reset;
84 delete $self->{retry};
85 delete $self->{next_connect};
86
87 $self->{transport} = $transport;
88
89 $transport->send ($_)
90 for @{ delete $self->{queue} || [] };
91}
92
93sub fail {
94 my ($self, @reason) = @_;
95
96 delete $self->{queue};
97
98 if (my $mon = delete $self->{lmon}) {
99 $_->(@reason) for map @$_, values %$mon;
100 }
101}
102
103sub clr_transport {
104 my ($self, @reason) = @_;
105
106 delete $self->{transport};
107 $self->connect;
108} 185}
109 186
110sub connect { 187sub connect {
111 my ($self) = @_; 188 my ($self) = @_;
112 189
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
113 Scalar::Util::weaken $self; 204 Scalar::Util::weaken $self;
114 205
115 $self->{retry} ||= [split /,/, $self->{noderef}]; 206 $self->{send} = sub {
116 207 local $AnyEvent::MP::Kernel::SRCNODE = $self;
117 my $endpoint = shift @{ $self->{retry} }; 208 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
118
119 if (defined $endpoint) {
120 $self->{trial}{$endpoint} ||= do {
121 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
122 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
123
124 my ($w, $g);
125
126 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
127 delete $self->{trial}{$endpoint};
128 };
129 $g = AnyEvent::MP::Transport::mp_connect
130 $host, $port,
131 sub {
132 delete $self->{trial}{$endpoint}
133 unless @_;
134 $g = shift;
135 };
136 ;
137
138 [$w, \$g]
139 };
140 } else {
141 $self->fail (transport_error => $self->{noderef}, "unable to connect");
142 }
143
144 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
145 delete $self->{retry};
146 $self->connect;
147 }; 209 };
148}
149
150package AnyEvent::MP::Node::Slave;
151
152use base "AnyEvent::MP::Node::Direct";
153
154sub connect {
155 my ($self) = @_;
156
157 $self->fail (transport_error => $self->{noderef}, "unable to connect to slave node");
158}
159
160package AnyEvent::MP::Node::Self;
161
162use base "AnyEvent::MP::Node";
163
164sub set_transport {
165 Carp::confess "FATAL error, set_transport was called on local node";
166}
167
168sub send {
169 local $AnyEvent::MP::Base::SRCNODE = $_[0];
170 AnyEvent::MP::Base::_inject (@{ $_[1] });
171} 210}
172 211
173sub kill { 212sub kill {
174 my ($self, $port, @reason) = @_; 213 my ($self, $port, @reason) = @_;
175 214
176 delete $AnyEvent::MP::Base::PORT{$port}; 215 delete $AnyEvent::MP::Kernel::PORT{$port};
177 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 216 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
178 217
179 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 218 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
180 or !@reason 219 or !@reason
181 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 220 or $AnyEvent::MP::Kernel::WARN->("unmonitored local port $port died with reason: @reason");
182 221
183 $_->(@reason) for values %$mon; 222 $_->(@reason) for values %$mon;
184} 223}
185 224
186sub monitor { 225sub monitor {
187 my ($self, $portid, $cb) = @_; 226 my ($self, $portid, $cb) = @_;
188 227
189 return $cb->(no_such_port => "cannot monitor nonexistent port") 228 return $cb->(no_such_port => "cannot monitor nonexistent port")
190 unless exists $AnyEvent::MP::Base::PORT{$portid}; 229 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
191 230
192 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 231 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
193} 232}
194 233
195sub unmonitor { 234sub unmonitor {
196 my ($self, $portid, $cb) = @_; 235 my ($self, $portid, $cb) = @_;
197 236
198 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 237 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
199} 238}
200 239
201=head1 SEE ALSO 240=head1 SEE ALSO
202 241
203L<AnyEvent::MP>. 242L<AnyEvent::MP>.

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