1 |
=head1 NAME |
2 |
|
3 |
AnyEvent::MP::Base - basis for AnyEvent::MP and Coro::MP |
4 |
|
5 |
=head1 SYNOPSIS |
6 |
|
7 |
# use AnyEvent::MP or Coro::MP instead |
8 |
|
9 |
=head1 DESCRIPTION |
10 |
|
11 |
This module provides most of the basic functionality of AnyEvent::MP, |
12 |
exposed through higher level interfaces such as L<AnyEvent::MP> and |
13 |
L<Coro::MP>. |
14 |
|
15 |
=cut |
16 |
|
17 |
package AnyEvent::MP::Base; |
18 |
|
19 |
use AnyEvent::MP::Node; |
20 |
use AnyEvent::MP::Transport; |
21 |
|
22 |
use common::sense; |
23 |
|
24 |
use Carp (); |
25 |
|
26 |
use AE (); |
27 |
|
28 |
use base "Exporter"; |
29 |
|
30 |
our $VERSION = '0.01'; |
31 |
our @EXPORT = qw(NODE $NODE snd _any_ become_slave become_public); |
32 |
|
33 |
our $DEFAULT_SECRET; |
34 |
|
35 |
our $CONNECT_INTERVAL = 5; # new connect every 5s, at least |
36 |
our $CONNECT_TIMEOUT = 30; # includes handshake |
37 |
|
38 |
our $WARN = sub { |
39 |
warn "$_[0]\n"; |
40 |
}; |
41 |
|
42 |
sub nonce($) { |
43 |
my $nonce; |
44 |
|
45 |
if (open my $fh, "</dev/urandom") { |
46 |
sysread $fh, $nonce, $_[0]; |
47 |
} else { |
48 |
# shit... |
49 |
our $nonce_init; |
50 |
unless ($nonce_init++) { |
51 |
srand time ^ $$ ^ unpack "%L*", qx"ps -edalf" . qx"ipconfig /all"; |
52 |
} |
53 |
|
54 |
$nonce = join "", map +(chr rand 256), 1 .. $_[0] |
55 |
} |
56 |
|
57 |
$nonce |
58 |
} |
59 |
|
60 |
sub default_secret { |
61 |
unless (defined $DEFAULT_SECRET) { |
62 |
if (open my $fh, "<$ENV{HOME}/.aemp-secret") { |
63 |
sysread $fh, $DEFAULT_SECRET, -s $fh; |
64 |
} else { |
65 |
$DEFAULT_SECRET = nonce 32; |
66 |
} |
67 |
} |
68 |
|
69 |
$DEFAULT_SECRET |
70 |
} |
71 |
|
72 |
our $UNIQ = sprintf "%x.%x", $$, time; # per-process/node unique cookie |
73 |
our $ID = "a"; |
74 |
our $PUBLIC = 0; |
75 |
our $NODE = $$; |
76 |
our $PORT; |
77 |
|
78 |
our %NODE; # node id to transport mapping, or "undef", for local node |
79 |
our %PORT; # local ports |
80 |
our %WKP; |
81 |
our %LISTENER; # local transports |
82 |
|
83 |
sub NODE() { $NODE } |
84 |
|
85 |
sub _ANY_() { 1 } |
86 |
sub _any_() { \&_ANY_ } |
87 |
|
88 |
sub _inject { |
89 |
($PORT{$_[0][0]} or return)->(@{$_[0][1]}); |
90 |
} |
91 |
|
92 |
sub add_node { |
93 |
my ($noderef) = @_; |
94 |
|
95 |
return $NODE{$noderef} |
96 |
if exists $NODE{$noderef}; |
97 |
|
98 |
for (split /,/, $noderef) { |
99 |
return $NODE{$noderef} = $NODE{$_} |
100 |
if exists $NODE{$_}; |
101 |
} |
102 |
|
103 |
# for indirect sends, use a different class |
104 |
my $node = new AnyEvent::MP::Node::Direct $noderef; |
105 |
|
106 |
$NODE{$_} = $node |
107 |
for $noderef, split /,/, $noderef; |
108 |
|
109 |
$node |
110 |
} |
111 |
|
112 |
sub snd(@) { |
113 |
my ($noderef, $port) = split /#/, shift, 2; |
114 |
|
115 |
add_node $noderef |
116 |
unless exists $NODE{$noderef}; |
117 |
|
118 |
$NODE{$noderef}->send (["$port", [@_]]); |
119 |
} |
120 |
|
121 |
sub become_public { |
122 |
return if $PUBLIC; |
123 |
|
124 |
my $noderef = join ",", @_; |
125 |
my @args = @_; |
126 |
|
127 |
$NODE = (AnyEvent::MP::Node::normalise_noderef $noderef)->recv; |
128 |
|
129 |
for my $t (split /,/, $NODE) { |
130 |
$NODE{$t} = $NODE{""}; |
131 |
|
132 |
my ($host, $port) = AnyEvent::Socket::parse_hostport $t; |
133 |
|
134 |
$LISTENER{$t} = AnyEvent::MP::Transport::mp_server $host, $port, |
135 |
@args, |
136 |
on_error => sub { |
137 |
die "on_error<@_>\n";#d# |
138 |
}, |
139 |
on_connect => sub { |
140 |
my ($tp) = @_; |
141 |
|
142 |
$NODE{$tp->{remote_id}} = $_[0]; |
143 |
}, |
144 |
sub { |
145 |
my ($tp) = @_; |
146 |
|
147 |
$NODE{"$tp->{peerhost}:$tp->{peerport}"} = $tp; |
148 |
}, |
149 |
; |
150 |
} |
151 |
|
152 |
$PUBLIC = 1; |
153 |
} |
154 |
|
155 |
############################################################################# |
156 |
# self node code |
157 |
|
158 |
$NODE{""} = new AnyEvent::MP::Node::Self noderef => $NODE; |
159 |
$PORT{""} = sub { |
160 |
given (shift) { |
161 |
when ("wkp") { |
162 |
my $wkname = shift; |
163 |
snd @_, $WKP{$wkname}; |
164 |
} |
165 |
when ("relay") { |
166 |
&snd; |
167 |
} |
168 |
when ("eval") { |
169 |
my @res = eval shift; |
170 |
snd @_, "$@", @res if @_; |
171 |
} |
172 |
when ("time") { |
173 |
snd @_, AE::time; |
174 |
} |
175 |
when ("devnull") { |
176 |
# |
177 |
} |
178 |
} |
179 |
}; |
180 |
|
181 |
=head1 SEE ALSO |
182 |
|
183 |
L<AnyEvent::MP>. |
184 |
|
185 |
=head1 AUTHOR |
186 |
|
187 |
Marc Lehmann <schmorp@schmorp.de> |
188 |
http://home.schmorp.de/ |
189 |
|
190 |
=cut |
191 |
|
192 |
1 |
193 |
|