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Comparing AnyEvent-MP/MP/Node.pm (file contents):
Revision 1.2 by root, Sat Aug 1 07:11:45 2009 UTC vs.
Revision 1.27 by root, Thu Aug 27 07:12:48 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->init;
29 $self->transport_reset;
30
31 $self
32}
33
34sub init {
35 #
36}
37
38sub send {
39 &{ shift->{send} }
40}
41
42# nodes reachable via the network
32package AnyEvent::MP::Node::Direct; 43package AnyEvent::MP::Node::External;
33 44
34use base "AnyEvent::MP::Node"; 45use base "AnyEvent::MP::Node";
35 46
36sub send { 47# called at init time, mostly sets {send}
48sub transport_reset {
37 my ($self, $msg) = @_; 49 my ($self) = @_;
38 50
39 warn "send $self $self->{noderef}\n";#d# 51 delete $self->{transport};
40 52
41 if ($self->{transport}) { 53 Scalar::Util::weaken $self;
42 $self->{transport}->send ($msg); 54
43 } elsif ($self->{queue}) { 55 $self->{send} = sub {
44 push @{ $self->{queue} }, $msg; 56 push @{$self->{queue}}, shift;
45 } else {
46 $self->{queue} = [$msg];
47 $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 %$mon;
48 } 81 }
49} 82}
50 83
51sub set_transport { 84# called after handshake was successful
85sub transport_connect {
52 my ($self, $transport) = @_; 86 my ($self, $transport) = @_;
53 87
54 delete $self->{trial}; 88 $self->transport_error (transport_error => "switched connections")
89 if $self->{transport};
90
55 delete $self->{next_connect}; 91 delete $self->{connect_w};
92 delete $self->{connect_to};
56 93
57 use Data::Dumper; warn "set_transport $self->{noderef} $self $AnyEvent::MP::NODE{'10.0.0.1:4040'}\n";#d#
58
59 if (
60 exists $self->{remote_uniq}
61 && $self->{remote_uniq} ne $transport->{remote_uniq}
62 ) {
63 # uniq changed, drop queue
64 delete $self->{queue};
65 #TODO: "DOWN"
66 }
67
68 $self->{remote_uniq} = $transport->{remote_uniq};
69 $self->{transport} = $transport; 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);
70 103
71 $transport->send ($_) 104 $transport->send ($_)
72 for @{ delete $self->{queue} || [] }; 105 for @{ delete $self->{queue} || [] };
73} 106}
74 107
75sub clr_transport {
76 my ($self) = @_;
77
78 delete $self->{transport};
79 warn "clr_transport\n";
80}
81
82sub connect { 108sub connect {
83 my ($self) = @_; 109 my ($self) = @_;
84 110
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
85 Scalar::Util::weaken $self; 116 Scalar::Util::weaken $self;
86 117
87 unless (exists $self->{n_noderef}) { 118 $self->{connect_to} ||= AE::timer
88 (AnyEvent::MP::normalise_noderef ($self->{noderef}))->cb (sub { 119 $AnyEvent::MP::Config::CFG{monitor_timeout} || $AnyEvent::MP::Kernel::MONITOR_TIMEOUT,
89 $self or return; 120 0,
90 my $noderef = shift->recv; 121 sub {
91 122 $self->transport_error (transport_error => $self->{noderef}, "unable to connect");
92 $self->{n_noderef} = $noderef;
93
94 $AnyEvent::MP::NODE{$_} = $self
95 for split /,/, $noderef;
96
97 $self->connect;
98 }); 123 };
99 return; 124
125 unless ($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 ;
100 } 149 }
150}
101 151
102 $self->{retry} ||= [split /,/, $self->{n_noderef}]; 152sub kill {
153 my ($self, $port, @reason) = @_;
103 154
104 my $endpoint = shift @{ $self->{retry} }; 155 $self->send (["", kil => $port, @reason]);
156}
105 157
106 if (defined $endpoint) { 158sub monitor {
107 $self->{trial}{$endpoint} ||= do { 159 my ($self, $portid, $cb) = @_;
108 my ($host, $port) = AnyEvent::Socket::parse_hostport $endpoint 160
161 my $list = $self->{lmon}{$portid} ||= [];
162
163 $self->send (["", mon1 => $portid])
164 unless @$list || !length $portid;
165
166 push @$list, $cb;
167}
168
169sub unmonitor {
170 my ($self, $portid, $cb) = @_;
171
172 my $list = $self->{lmon}{$portid}
109 or return; 173 or return;
110 174
111 my ($w, $g); 175 @$list = grep $_ != $cb, @$list;
112 176
113 $w = AE::timer $AnyEvent::MP::CONNECT_TIMEOUT, 0, sub { 177 unless (@$list) {
114 delete $self->{trial}{$endpoint}; 178 $self->send (["", mon0 => $portid]);
115 }; 179 delete $self->{monitor}{$portid};
116 $g = AnyEvent::MP::Transport::mp_connect
117 $host, $port,
118 sub {
119 delete $self->{trial}{$endpoint}
120 unless @_;
121 $g = shift;
122 };
123 ;
124
125 [$w, \$g]
126 };
127 } else {
128 delete $self->{retry};
129 } 180 }
181}
130 182
131 $self->{next_connect} = AE::timer $AnyEvent::MP::CONNECT_INTERVAL, 0, sub { 183# used for direct slave connections as well
132 $self->connect; 184package AnyEvent::MP::Node::Direct;
185
186use base "AnyEvent::MP::Node::External";
187
188package AnyEvent::MP::Node::Self;
189
190use base "AnyEvent::MP::Node";
191
192sub connect {
193 # we are trivially connected
194}
195
196sub transport_reset {
197 my ($self) = @_;
198
199 Scalar::Util::weaken $self;
200
201 $self->{send} = sub {
202 local $AnyEvent::MP::Kernel::SRCNODE = $self;
203 AnyEvent::MP::Kernel::_inject (@{ $_[0] });
133 }; 204 };
134} 205}
135 206
136package AnyEvent::MP::Node::Self; 207sub kill {
208 my ($self, $port, @reason) = @_;
137 209
138use base "AnyEvent::MP::Node"; 210 delete $AnyEvent::MP::Kernel::PORT{$port};
211 delete $AnyEvent::MP::Kernel::PORT_DATA{$port};
139 212
140sub set_transport { 213 my $mon = delete $AnyEvent::MP::Kernel::LMON{$port}
141 die "FATAL error, set_transport was called"; 214 or !@reason
142} 215 or $AnyEvent::MP::Kernel::WARN->(2, "unmonitored local port $port died with reason: @reason");
143 216
144sub send { 217 $_->(@reason) for values %$mon;
145 AnyEvent::MP::_inject ($_[1]); 218}
219
220sub monitor {
221 my ($self, $portid, $cb) = @_;
222
223 return $cb->(no_such_port => "cannot monitor nonexistent port")
224 unless exists $AnyEvent::MP::Kernel::PORT{$portid};
225
226 $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0} = $cb;
227}
228
229sub unmonitor {
230 my ($self, $portid, $cb) = @_;
231
232 delete $AnyEvent::MP::Kernel::LMON{$portid}{$cb+0};
146} 233}
147 234
148=head1 SEE ALSO 235=head1 SEE ALSO
149 236
150L<AnyEvent>. 237L<AnyEvent::MP>.
151 238
152=head1 AUTHOR 239=head1 AUTHOR
153 240
154 Marc Lehmann <schmorp@schmorp.de> 241 Marc Lehmann <schmorp@schmorp.de>
155 http://home.schmorp.de/ 242 http://home.schmorp.de/

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