ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/AnyEvent-MP/MP/Node.pm
(Generate patch)

Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.16 by root, Sun Aug 9 16:08:16 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
25sub new { 23sub new {
26 my ($class, $noderef) = @_; 24 my ($self, $noderef) = @_;
27 25
28 bless { noderef => $noderef }, $class 26 $self = bless { noderef => $noderef }, $self;
29}
30 27
28 $self->init;
29 $self->transport_reset;
30
31 $self
32}
33
34sub init {
35 #
36}
37
38sub send {
39 &{ shift->{send} }
40}
41
42# nodes reachable via the network
31package AnyEvent::MP::Node::Direct; 43package AnyEvent::MP::Node::External;
32 44
33use base "AnyEvent::MP::Node"; 45use base "AnyEvent::MP::Node";
34 46
35sub send { 47# called at init time, mostly sets {send}
48sub transport_reset {
36 my ($self, $msg) = @_; 49 my ($self) = @_;
37 50
38 if ($self->{transport}) { 51 delete $self->{transport};
39 $self->{transport}->send ($msg); 52
40 } elsif ($self->{queue}) { 53 Scalar::Util::weaken $self;
54
55 $self->{send} = sub {
41 push @{ $self->{queue} }, $msg; 56 push @{$self->{queue}}, shift;
42 } else {
43 $self->{queue} = [$msg];
44 $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 ;
45 } 149 }
46} 150}
47 151
48sub kill { 152sub kill {
49 my ($self, $port, @reason) = @_; 153 my ($self, $port, @reason) = @_;
… …
55 my ($self, $portid, $cb) = @_; 159 my ($self, $portid, $cb) = @_;
56 160
57 my $list = $self->{lmon}{$portid} ||= []; 161 my $list = $self->{lmon}{$portid} ||= [];
58 162
59 $self->send (["", mon1 => $portid]) 163 $self->send (["", mon1 => $portid])
60 unless @$list; 164 unless @$list || !length $portid;
61 165
62 push @$list, $cb; 166 push @$list, $cb;
63} 167}
64 168
65sub unmonitor { 169sub unmonitor {
… …
74 $self->send (["", mon0 => $portid]); 178 $self->send (["", mon0 => $portid]);
75 delete $self->{monitor}{$portid}; 179 delete $self->{monitor}{$portid};
76 } 180 }
77} 181}
78 182
79sub set_transport { 183# used for direct slave connections as well
80 my ($self, $transport) = @_; 184package AnyEvent::MP::Node::Direct;
81 185
82 $self->clr_transport 186use base "AnyEvent::MP::Node::External";
83 if $self->{transport};
84 187
85 delete $self->{trial}; 188package AnyEvent::MP::Node::Self;
86 delete $self->{retry};
87 delete $self->{next_connect};
88 189
89 $self->{transport} = $transport; 190use base "AnyEvent::MP::Node";
90
91 $transport->send ($_)
92 for @{ delete $self->{queue} || [] };
93}
94
95sub fail {
96 my ($self, @reason) = @_;
97
98 delete $self->{queue};
99
100 if (my $mon = delete $self->{lmon}) {
101 $_->(@reason) for map @$_, values %$mon;
102 }
103}
104
105sub clr_transport {
106 my ($self, @reason) = @_;
107
108 delete $self->{transport};
109 $self->connect;
110}
111 191
112sub connect { 192sub connect {
193 # we are trivially connected
194}
195
196sub transport_reset {
113 my ($self) = @_; 197 my ($self) = @_;
114 198
115 Scalar::Util::weaken $self; 199 Scalar::Util::weaken $self;
116 200
117 $self->{retry} ||= [split /,/, $self->{noderef}]; 201 $self->{send} = sub {
118 202 local $AnyEvent::MP::Kernel::SRCNODE = $self;
119 my $endpoint = shift @{ $self->{retry} }; 203 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
120
121 if (defined $endpoint) {
122 $self->{trial}{$endpoint} ||= do {
123 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint
124 or return $AnyEvent::MP::Base::WARN->("$self->{noderef}: not a resolved node reference.");
125
126 my ($w, $g);
127
128 $w = AE::timer $AnyEvent::MP::Base::CONNECT_TIMEOUT, 0, sub {
129 delete $self->{trial}{$endpoint};
130 };
131 $g = AnyEvent::MP::Transport::mp_connect
132 $host, $port,
133 sub {
134 delete $self->{trial}{$endpoint}
135 unless @_;
136 $g = shift;
137 };
138 ;
139
140 [$w, \$g]
141 };
142 } else {
143 $self->fail (transport_error => $self->{noderef}, "unable to connect");
144 }
145
146 $self->{next_connect} = AE::timer $AnyEvent::MP::Base::CONNECT_INTERVAL, 0, sub {
147 delete $self->{retry};
148 $self->connect;
149 }; 204 };
150}
151
152package AnyEvent::MP::Node::Slave;
153
154use base "AnyEvent::MP::Node::Direct";
155
156sub connect {
157 my ($self) = @_;
158
159 $self->fail (transport_error => $self->{noderef}, "unable to connect to slave node");
160}
161
162package AnyEvent::MP::Node::Self;
163
164use base "AnyEvent::MP::Node";
165
166sub set_transport {
167 Carp::confess "FATAL error, set_transport was called on local node";
168}
169
170sub send {
171 local $AnyEvent::MP::Base::SRCNODE = $_[0];
172 AnyEvent::MP::Base::_inject (@{ $_[1] });
173} 205}
174 206
175sub kill { 207sub kill {
176 my ($self, $port, @reason) = @_; 208 my ($self, $port, @reason) = @_;
177 209
178 delete $AnyEvent::MP::Base::PORT{$port}; 210 delete $AnyEvent::MP::Kernel::PORT{$port};
179 delete $AnyEvent::MP::Base::PORT_DATA{$port}; 211 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
180 212
181 my $mon = delete $AnyEvent::MP::Base::LMON{$port} 213 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
182 or !@reason 214 or !@reason
183 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");
184 216
185 $_->(@reason) for values %$mon; 217 $_->(@reason) for values %$mon;
186} 218}
187 219
188sub monitor { 220sub monitor {
189 my ($self, $portid, $cb) = @_; 221 my ($self, $portid, $cb) = @_;
190 222
191 return $cb->(no_such_port => "cannot monitor nonexistent port") 223 return $cb->(no_such_port => "cannot monitor nonexistent port")
192 unless exists $AnyEvent::MP::Base::PORT{$portid}; 224 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
193 225
194 $AnyEvent::MP::Base::LMON{$portid}{$cb+0} = $cb; 226 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
195} 227}
196 228
197sub unmonitor { 229sub unmonitor {
198 my ($self, $portid, $cb) = @_; 230 my ($self, $portid, $cb) = @_;
199 231
200 delete $AnyEvent::MP::Base::LMON{$portid}{$cb+0}; 232 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
201} 233}
202 234
203=head1 SEE ALSO 235=head1 SEE ALSO
204 236
205L<AnyEvent>. 237L<AnyEvent::MP>.
206 238
207=head1 AUTHOR 239=head1 AUTHOR
208 240
209 Marc Lehmann <schmorp@schmorp.de> 241 Marc Lehmann <schmorp@schmorp.de>
210 http://home.schmorp.de/ 242 http://home.schmorp.de/

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines