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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.10 by root, Tue Aug 4 23:35:51 2009 UTC vs.
Revision 1.27 by root, Thu Aug 27 07:12:48 2009 UTC

… …
18use AnyEvent::Util (); 18use AnyEvent::Util ();
19use AnyEvent::Socket (); 19use AnyEvent::Socket ();
20 20
21use AnyEvent::MP::Transport (); 21use AnyEvent::MP::Transport ();
22 22
23use base Exporter::;
24
25our $VERSION = '0.0';
26
27sub new { 23sub new {
28 my ($class, $noderef) = @_; 24 my ($self, $noderef) = @_;
29 25
30 bless { noderef => $noderef }, $class 26 $self = bless { noderef => $noderef }, $self;
31}
32 27
28 $self->init;
29 $self->transport_reset;
30
31 $self
32}
33
34sub init {
35 #
36}
37
38sub send {
39 &{ shift->{send} }
40}
41
42# nodes reachable via the network
33package AnyEvent::MP::Node::Direct; 43package AnyEvent::MP::Node::External;
34 44
35use base "AnyEvent::MP::Node"; 45use base "AnyEvent::MP::Node";
36 46
37sub send { 47# called at init time, mostly sets {send}
48sub transport_reset {
38 my ($self, $msg) = @_; 49 my ($self) = @_;
39 50
40 if ($self->{transport}) { 51 delete $self->{transport};
41 $self->{transport}->send ($msg); 52
42 } elsif ($self->{queue}) { 53 Scalar::Util::weaken $self;
54
55 $self->{send} = sub {
43 push @{ $self->{queue} }, $msg; 56 push @{$self->{queue}}, shift;
44 } else {
45 $self->{queue} = [$msg];
46 $self->connect; 57 $self->connect;
58 };
59
60 $self->connect
61 if $self->{autoconnect};
62}
63
64# called only after successful handshake
65sub transport_error {
66 my ($self, @reason) = @_;
67
68 my $no_transport = !$self->{transport};
69
70 delete $self->{connect_w};
71 delete $self->{connect_to};
72
73 delete $self->{queue};
74 $self->transport_reset;
75
76 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 0, @reason)
77 unless $no_transport;
78
79 if (my $mon = delete $self->{lmon}) {
80 $_->(@reason) for map @$_, values %$mon;
81 }
82}
83
84# called after handshake was successful
85sub transport_connect {
86 my ($self, $transport) = @_;
87
88 $self->transport_error (transport_error => "switched connections")
89 if $self->{transport};
90
91 delete $self->{connect_w};
92 delete $self->{connect_to};
93
94 $self->{transport} = $transport;
95
96 my $transport_send = $transport->can ("send");
97
98 $self->{send} = sub {
99 $transport_send->($transport, $_[0]);
100 };
101
102 AnyEvent::MP::Kernel::_inject_nodeevent ($self, 1);
103
104 $transport->send ($_)
105 for @{ delete $self->{queue} || [] };
106}
107
108sub connect {
109 my ($self) = @_;
110
111 return if $self->{transport};
112
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;
117
118 $self->{connect_to} ||= AE::timer
119 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
120 0,
121 sub {
122 $self->transport_error (transport_error => $self->{noderef}, "unable to connect");
123 };
124
125 unless ($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 ;
47 } 149 }
48} 150}
49 151
50sub kill { 152sub kill {
51 my ($self, $port, @reason) = @_; 153 my ($self, $port, @reason) = @_;
… …
54} 156}
55 157
56sub monitor { 158sub monitor {
57 my ($self, $portid, $cb) = @_; 159 my ($self, $portid, $cb) = @_;
58 160
59 return $cb->("node failed conenction")
60 if $self->{failed};
61
62 my $list = $self->{lmon}{$portid} ||= []; 161 my $list = $self->{lmon}{$portid} ||= [];
63 162
64 $self->send (["", mon1 => $portid]) 163 $self->send (["", mon1 => $portid])
65 unless @$list; 164 unless @$list || !length $portid;
66 165
67 push @$list, $cb; 166 push @$list, $cb;
68} 167}
69 168
70sub unmonitor { 169sub unmonitor {
… …
79 $self->send (["", mon0 => $portid]); 178 $self->send (["", mon0 => $portid]);
80 delete $self->{monitor}{$portid}; 179 delete $self->{monitor}{$portid};
81 } 180 }
82} 181}
83 182
84sub set_transport { 183# used for direct slave connections as well
85 my ($self, $transport) = @_; 184package AnyEvent::MP::Node::Direct;
86 185
87 $self->clr_transport 186use base "AnyEvent::MP::Node::External";
88 if $self->{transport};
89 187
90 if ( 188package AnyEvent::MP::Node::Self;
91 exists $self->{remote_uniq}
92 && $self->{remote_uniq} ne $transport->{remote_uniq}
93 ) {
94 # uniq changed, different node
95 $self->fail ("node restart detected");
96 }
97 189
98 delete $self->{trial}; 190use base "AnyEvent::MP::Node";
99 delete $self->{next_connect};
100 delete $self->{failed};
101
102 $self->{remote_uniq} = $transport->{remote_uniq};
103 $self->{transport} = $transport;
104
105 $transport->send ($_)
106 for @{ delete $self->{queue} || [] };
107}
108
109sub fail {
110 my ($self, @reason) = @_;
111
112 delete $self->{queue};
113
114 $self->{failed} = 1;
115
116 if (my $mon = delete $self->{lmon}) {
117 $_->(@reason) for map @$_, values %$mon;
118 }
119}
120
121sub clr_transport {
122 my ($self, @reason) = @_;
123
124 delete $self->{transport};
125 $self->connect;
126}
127 191
128sub connect { 192sub connect {
193 # we are trivially connected
194}
195
196sub transport_reset {
129 my ($self) = @_; 197 my ($self) = @_;
130 198
131 Scalar::Util::weaken $self; 199 Scalar::Util::weaken $self;
132 200
133 $self->{retry} ||= [split /,/, $self->{noderef}]; 201 $self->{send} = sub {
134 202 local $AnyEvent::MP::Kernel::SRCNODE = $self;
135 my $endpoint = shift @{ $self->{retry} }; 203 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
136
137 if (defined $endpoint) {
138 $self->{trial}{$endpoint} ||= do {
139 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
140 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
141
142 my ($w, $g);
143
144 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
145 delete $self->{trial}{$endpoint};
146 };
147 $g = AnyEvent::MP::Transport::mp_connect
148 $host, $port,
149 sub {
150 delete $self->{trial}{$endpoint}
151 unless @_;
152 $g = shift;
153 };
154 ;
155
156 [$w, \$g]
157 };
158 } else {
159 delete $self->{retry};
160 $self->fail (transport_error => $self->{noderef}, "unable to connect");
161 }
162
163 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
164 $self->connect;
165 }; 204 };
166}
167
168package AnyEvent::MP::Node::Self;
169
170use base "AnyEvent::MP::Node";
171
172sub set_transport {
173 die "FATAL error, set_transport was called";
174}
175
176sub send {
177 local $AnyEvent::MP::Base::SRCNODE = $_[0];
178 AnyEvent::MP::Base::_inject (@{ $_[1] });
179} 205}
180 206
181sub kill { 207sub kill {
182 my ($self, $port, @reason) = @_; 208 my ($self, $port, @reason) = @_;
183 209
184 delete $AnyEvent::MP::Base::PORT{$port}; 210 delete $AnyEvent::MP::Kernel::PORT{$port};
185 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 211 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
186 212
187 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 213 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
188 or !@reason 214 or !@reason
189 or $AnyEvent::MP::Base::WARN->("unmonitored local port $port died with reason: @reason"); 215 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
190 216
191 $_->(@reason) for values %$mon; 217 $_->(@reason) for values %$mon;
192} 218}
193 219
194sub monitor { 220sub monitor {
195 my ($self, $portid, $cb) = @_; 221 my ($self, $portid, $cb) = @_;
196 222
197 return $cb->() 223 return $cb->(no_such_port => "cannot monitor nonexistent port")
198 unless exists $AnyEvent::MP::Base::PORT{$portid}; 224 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
199 225
200 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 226 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
201} 227}
202 228
203sub unmonitor { 229sub unmonitor {
204 my ($self, $portid, $cb) = @_; 230 my ($self, $portid, $cb) = @_;
205 231
206 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 232 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
207} 233}
208 234
209=head1 SEE ALSO 235=head1 SEE ALSO
210 236
211L<AnyEvent>. 237L<AnyEvent::MP>.
212 238
213=head1 AUTHOR 239=head1 AUTHOR
214 240
215 Marc Lehmann <schmorp@schmorp.de> 241 Marc Lehmann <schmorp@schmorp.de>
216 http://home.schmorp.de/ 242 http://home.schmorp.de/

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