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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 1.26 by root, Sat Aug 15 15:13:04 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 $self->connect
55 if $self->{autoconnect};
56}
57
58# called only after successful handshake
59sub transport_error {
60 my ($self, @reason) = @_;
61
62 my $no_transport = !$self->{transport};
63
64 delete $self->{connect_w};
65 delete $self->{connect_to};
66
67 delete $self->{queue};
68 $self->transport_reset;
69
70 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
71 unless $no_transport;
72
73 if (my $mon = delete $self->{lmon}) {
74 $_->(@reason) for map @$_, values %$mon;
75 }
76}
77
78# called after handshake was successful
79sub transport_connect {
80 my ($self, $transport) = @_;
81
82 # first connect with a master node
83 $AnyEvent::MP::Kernel::SLAVE->($self)
84 if ref $AnyEvent::MP::Kernel::SLAVE;
85
86 $self->transport_error (transport_error => "switched connections")
87 if $self->{transport};
88
89 delete $self->{connect_w};
90 delete $self->{connect_to};
91
92 $self->{transport} = $transport;
93
94 my $transport_send = $transport->can ("send");
95
96 $self->{send} = sub {
97 $transport_send->($transport, $_[0]);
98 };
99
100 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
101
102 $transport->send ($_)
103 for @{ delete $self->{queue} || [] };
104}
105
106sub connect {
107 my ($self) = @_;
108
109 return if $self->{transport};
110
111 Scalar::Util::weaken $self;
112
113 $self->{connect_to} ||= AE::timer
114 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
115 0,
116 sub {
117 $self->transport_error (transport_error => $self->{noderef}, "unable to connect");
118 };
119
120 unless ($self->{connect_w}) {
121 my @endpoints;
122 my %trial;
123
124 $self->{connect_w} = AE::timer
125 rand,
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 ;
43 } 144 }
44} 145}
45 146
46sub kill { 147sub kill {
47 my ($self, $port, @reason) = @_; 148 my ($self, $port, @reason) = @_;
… …
53 my ($self, $portid, $cb) = @_; 154 my ($self, $portid, $cb) = @_;
54 155
55 my $list = $self->{lmon}{$portid} ||= []; 156 my $list = $self->{lmon}{$portid} ||= [];
56 157
57 $self->send (["", mon1 => $portid]) 158 $self->send (["", mon1 => $portid])
58 unless @$list; 159 unless @$list || !length $portid;
59 160
60 push @$list, $cb; 161 push @$list, $cb;
61} 162}
62 163
63sub unmonitor { 164sub unmonitor {
… …
72 $self->send (["", mon0 => $portid]); 173 $self->send (["", mon0 => $portid]);
73 delete $self->{monitor}{$portid}; 174 delete $self->{monitor}{$portid};
74 } 175 }
75} 176}
76 177
77sub set_transport { 178package AnyEvent::MP::Node::Direct;
179
180use base "AnyEvent::MP::Node::External";
181
182package AnyEvent::MP::Node::Indirect;
183
184use base "AnyEvent::MP::Node::Direct";
185
186sub master {
78 my ($self, $transport) = @_; 187 my ($self) = @_;
79 188
80 $self->clr_transport 189 my (undef, $master) = split /\@/, $self->{noderef}, 2;
190 $master =~ s/!/,/g;
191 $master
192}
193
194sub transport_reset {
195 my ($self) = @_;
196
81 if $self->{transport}; 197 if ($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#
82 203
83 delete $self->{trial}; 204 my $noderef = $self->{noderef};
84 delete $self->{retry}; 205 my $master = $self->master;
85 delete $self->{next_connect};
86 206
87 $self->{transport} = $transport; 207 # slave nodes are so cool - we can always send to them :)
88 208
89 $transport->send ($_) 209 $self->{send} = sub {
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; 210 $self->connect;
211 snd $master, snd => $noderef, @_;
212 };
213 }
108} 214}
109 215
110sub connect { 216sub connect {
111 my ($self) = @_; 217 my ($self) = @_;
112 218
219 #TODO#
220# # ask for a connection, #TODO# rate-limit this somehow
221# snd $self->master, relay => $self->{noderef}, connect_node => $AnyEvent::MP::Kernel::NODE;
222}
223
224package AnyEvent::MP::Node::Self;
225
226use base "AnyEvent::MP::Node";
227
228sub connect {
229 # we are trivially connected
230}
231
232sub transport_reset {
233 my ($self) = @_;
234
113 Scalar::Util::weaken $self; 235 Scalar::Util::weaken $self;
114 236
115 $self->{retry} ||= [split /,/, $self->{noderef}]; 237 $self->{send} = sub {
116 238 local $AnyEvent::MP::Kernel::SRCNODE = $self;
117 my $endpoint = shift @{ $self->{retry} }; 239 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 $self->connect;
147 }; 240 };
148}
149
150package AnyEvent::MP::Node::Slave;
151
152use base "AnyEvent::MP::Node::Direct";
153
154sub connect {
155 my ($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 (@{ $_[1] });
171} 241}
172 242
173sub kill { 243sub kill {
174 my ($self, $port, @reason) = @_; 244 my ($self, $port, @reason) = @_;
175 245
176 delete $AnyEvent::MP::Base::PORT{$port}; 246 delete $AnyEvent::MP::Kernel::PORT{$port};
177 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 247 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
178 248
179 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 249 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
180 or !@reason 250 or !@reason
181 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 251 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
182 252
183 $_->(@reason) for values %$mon; 253 $_->(@reason) for values %$mon;
184} 254}
185 255
186sub monitor { 256sub monitor {
187 my ($self, $portid, $cb) = @_; 257 my ($self, $portid, $cb) = @_;
188 258
189 return $cb->(no_such_port => "cannot monitor nonexistent port") 259 return $cb->(no_such_port => "cannot monitor nonexistent port")
190 unless exists $AnyEvent::MP::Base::PORT{$portid}; 260 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
191 261
192 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 262 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
193} 263}
194 264
195sub unmonitor { 265sub unmonitor {
196 my ($self, $portid, $cb) = @_; 266 my ($self, $portid, $cb) = @_;
197 267
198 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 268 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
199} 269}
200 270
201=head1 SEE ALSO 271=head1 SEE ALSO
202 272
203L<AnyEvent::MP>. 273L<AnyEvent::MP>.

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