1 |
root |
1.1 |
=head1 NAME |
2 |
|
|
|
3 |
root |
1.3 |
AnyEvent::MP::Kernel - the actual message passing kernel |
4 |
root |
1.1 |
|
5 |
|
|
=head1 SYNOPSIS |
6 |
|
|
|
7 |
root |
1.3 |
use AnyEvent::MP::Kernel; |
8 |
root |
1.1 |
|
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 |
root |
1.3 |
This module is mainly of interest when knowledge about connectivity, |
16 |
root |
1.27 |
connected nodes etc. is sought. |
17 |
root |
1.3 |
|
18 |
|
|
=head1 GLOBALS AND FUNCTIONS |
19 |
root |
1.1 |
|
20 |
|
|
=over 4 |
21 |
|
|
|
22 |
|
|
=cut |
23 |
|
|
|
24 |
|
|
package AnyEvent::MP::Kernel; |
25 |
|
|
|
26 |
|
|
use common::sense; |
27 |
root |
1.16 |
use POSIX (); |
28 |
root |
1.1 |
use Carp (); |
29 |
|
|
use MIME::Base64 (); |
30 |
|
|
|
31 |
|
|
use AE (); |
32 |
|
|
|
33 |
|
|
use AnyEvent::MP::Node; |
34 |
|
|
use AnyEvent::MP::Transport; |
35 |
|
|
|
36 |
|
|
use base "Exporter"; |
37 |
|
|
|
38 |
root |
1.28 |
our $VERSION = '0.9'; |
39 |
root |
1.1 |
our @EXPORT = qw( |
40 |
root |
1.13 |
%NODE %PORT %PORT_DATA $UNIQ $RUNIQ $ID |
41 |
root |
1.21 |
add_node load_func snd_to_func snd_on eval_on |
42 |
root |
1.1 |
|
43 |
root |
1.10 |
NODE $NODE node_of snd kil |
44 |
root |
1.17 |
port_is_local |
45 |
root |
1.1 |
resolve_node initialise_node |
46 |
root |
1.13 |
known_nodes up_nodes mon_nodes node_is_known node_is_up |
47 |
root |
1.1 |
); |
48 |
|
|
|
49 |
|
|
our $DEFAULT_PORT = "4040"; |
50 |
|
|
|
51 |
|
|
our $CONNECT_INTERVAL = 2; # new connect every 2s, at least |
52 |
|
|
our $NETWORK_LATENCY = 3; # activity timeout |
53 |
|
|
our $MONITOR_TIMEOUT = 15; # fail monitoring after this time |
54 |
|
|
|
55 |
root |
1.16 |
=item $AnyEvent::MP::Kernel::WARN->($level, $msg) |
56 |
root |
1.1 |
|
57 |
root |
1.27 |
This value is called with an error or warning message, when e.g. a |
58 |
|
|
connection could not be created, authorisation failed and so on. |
59 |
|
|
|
60 |
|
|
It I<must not> block or send messages -queue it and use an idle watcher if |
61 |
|
|
you need to do any of these things. |
62 |
root |
1.1 |
|
63 |
root |
1.16 |
C<$level> sould be C<0> for messages ot be logged always, C<1> for |
64 |
|
|
unexpected messages and errors, C<2> for warnings, C<7> for messages about |
65 |
|
|
node connectivity and services, C<8> for debugging messages and C<9> for |
66 |
|
|
tracing messages. |
67 |
|
|
|
68 |
root |
1.1 |
The default simply logs the message to STDERR. |
69 |
|
|
|
70 |
|
|
=cut |
71 |
|
|
|
72 |
|
|
our $WARN = sub { |
73 |
root |
1.16 |
my ($level, $msg) = @_; |
74 |
|
|
|
75 |
root |
1.1 |
$msg =~ s/\n$//; |
76 |
root |
1.16 |
|
77 |
|
|
printf STDERR "%s <%d> %s\n", |
78 |
|
|
(POSIX::strftime "%Y-%m-%d %H:%M:%S", localtime time), |
79 |
|
|
$level, |
80 |
|
|
$msg; |
81 |
root |
1.1 |
}; |
82 |
|
|
|
83 |
root |
1.6 |
sub load_func($) { |
84 |
|
|
my $func = $_[0]; |
85 |
|
|
|
86 |
|
|
unless (defined &$func) { |
87 |
|
|
my $pkg = $func; |
88 |
|
|
do { |
89 |
|
|
$pkg =~ s/::[^:]+$// |
90 |
|
|
or return sub { die "unable to resolve '$func'" }; |
91 |
|
|
eval "require $pkg"; |
92 |
|
|
} until defined &$func; |
93 |
|
|
} |
94 |
|
|
|
95 |
|
|
\&$func |
96 |
|
|
} |
97 |
|
|
|
98 |
root |
1.1 |
sub nonce($) { |
99 |
|
|
my $nonce; |
100 |
|
|
|
101 |
|
|
if (open my $fh, "</dev/urandom") { |
102 |
|
|
sysread $fh, $nonce, $_[0]; |
103 |
|
|
} else { |
104 |
|
|
# shit... |
105 |
|
|
our $nonce_init; |
106 |
|
|
unless ($nonce_init++) { |
107 |
|
|
srand time ^ $$ ^ unpack "%L*", qx"ps -edalf" . qx"ipconfig /all"; |
108 |
|
|
} |
109 |
|
|
|
110 |
|
|
$nonce = join "", map +(chr rand 256), 1 .. $_[0] |
111 |
|
|
} |
112 |
|
|
|
113 |
|
|
$nonce |
114 |
|
|
} |
115 |
|
|
|
116 |
root |
1.21 |
sub alnumbits($) { |
117 |
root |
1.1 |
my $data = $_[0]; |
118 |
|
|
|
119 |
|
|
if (eval "use Math::GMP 2.05; 1") { |
120 |
|
|
$data = Math::GMP::get_str_gmp ( |
121 |
|
|
(Math::GMP::new_from_scalar_with_base (+(unpack "H*", $data), 16)), |
122 |
|
|
62 |
123 |
|
|
); |
124 |
|
|
} else { |
125 |
|
|
$data = MIME::Base64::encode_base64 $data, ""; |
126 |
|
|
$data =~ s/=//; |
127 |
|
|
$data =~ s/\//s/g; |
128 |
|
|
$data =~ s/\+/p/g; |
129 |
|
|
} |
130 |
|
|
|
131 |
|
|
$data |
132 |
|
|
} |
133 |
|
|
|
134 |
|
|
sub gen_uniq { |
135 |
root |
1.21 |
alnumbits pack "wNa*", $$, time, nonce 2 |
136 |
root |
1.1 |
} |
137 |
|
|
|
138 |
root |
1.20 |
our $CONFIG; # this node's configuration |
139 |
root |
1.21 |
|
140 |
|
|
our $RUNIQ = alnumbits nonce 16;; # remote uniq value |
141 |
root |
1.1 |
our $UNIQ = gen_uniq; # per-process/node unique cookie |
142 |
root |
1.21 |
our $NODE = "anon/$RUNIQ"; |
143 |
root |
1.1 |
our $ID = "a"; |
144 |
|
|
|
145 |
|
|
our %NODE; # node id to transport mapping, or "undef", for local node |
146 |
|
|
our (%PORT, %PORT_DATA); # local ports |
147 |
|
|
|
148 |
root |
1.21 |
our %RMON; # local ports monitored by remote nodes ($RMON{nodeid}{portid} == cb) |
149 |
root |
1.1 |
our %LMON; # monitored _local_ ports |
150 |
|
|
|
151 |
|
|
our %LISTENER; |
152 |
root |
1.21 |
our $LISTENER; # our listeners, as arrayref |
153 |
root |
1.1 |
|
154 |
|
|
our $SRCNODE; # holds the sending node during _inject |
155 |
|
|
|
156 |
|
|
sub NODE() { |
157 |
|
|
$NODE |
158 |
|
|
} |
159 |
|
|
|
160 |
|
|
sub node_of($) { |
161 |
root |
1.21 |
my ($node, undef) = split /#/, $_[0], 2; |
162 |
root |
1.1 |
|
163 |
root |
1.21 |
$node |
164 |
root |
1.1 |
} |
165 |
|
|
|
166 |
root |
1.17 |
BEGIN { |
167 |
|
|
*TRACE = $ENV{PERL_ANYEVENT_MP_TRACE} |
168 |
|
|
? sub () { 1 } |
169 |
|
|
: sub () { 0 }; |
170 |
|
|
} |
171 |
root |
1.1 |
|
172 |
|
|
sub _inject { |
173 |
root |
1.25 |
warn "RCV $SRCNODE->{id} -> " . (JSON::XS->new->encode (\@_)) . "\n" if TRACE && @_;#d# |
174 |
root |
1.1 |
&{ $PORT{+shift} or return }; |
175 |
|
|
} |
176 |
|
|
|
177 |
root |
1.20 |
# this function adds a node-ref, so you can send stuff to it |
178 |
|
|
# it is basically the central routing component. |
179 |
root |
1.1 |
sub add_node { |
180 |
root |
1.21 |
my ($node) = @_; |
181 |
root |
1.1 |
|
182 |
root |
1.21 |
$NODE{$node} ||= new AnyEvent::MP::Node::Direct $node |
183 |
root |
1.13 |
} |
184 |
|
|
|
185 |
root |
1.1 |
sub snd(@) { |
186 |
root |
1.21 |
my ($nodeid, $portid) = split /#/, shift, 2; |
187 |
root |
1.1 |
|
188 |
root |
1.25 |
warn "SND $nodeid <- " . (JSON::XS->new->encode (\@_)) . "\n" if TRACE && @_;#d# |
189 |
root |
1.1 |
|
190 |
root |
1.21 |
($NODE{$nodeid} || add_node $nodeid) |
191 |
root |
1.2 |
->{send} (["$portid", @_]); |
192 |
root |
1.1 |
} |
193 |
|
|
|
194 |
root |
1.17 |
=item $is_local = port_is_local $port |
195 |
|
|
|
196 |
|
|
Returns true iff the port is a local port. |
197 |
|
|
|
198 |
|
|
=cut |
199 |
|
|
|
200 |
|
|
sub port_is_local($) { |
201 |
root |
1.21 |
my ($nodeid, undef) = split /#/, $_[0], 2; |
202 |
root |
1.17 |
|
203 |
root |
1.21 |
$NODE{$nodeid} == $NODE{""} |
204 |
root |
1.17 |
} |
205 |
|
|
|
206 |
root |
1.18 |
=item snd_to_func $node, $func, @args |
207 |
root |
1.11 |
|
208 |
root |
1.21 |
Expects a node ID and a name of a function. Asynchronously tries to call |
209 |
root |
1.11 |
this function with the given arguments on that node. |
210 |
|
|
|
211 |
root |
1.20 |
This function can be used to implement C<spawn>-like interfaces. |
212 |
root |
1.11 |
|
213 |
|
|
=cut |
214 |
|
|
|
215 |
root |
1.18 |
sub snd_to_func($$;@) { |
216 |
root |
1.21 |
my $nodeid = shift; |
217 |
root |
1.11 |
|
218 |
root |
1.21 |
($NODE{$nodeid} || add_node $nodeid) |
219 |
root |
1.11 |
->send (["", @_]); |
220 |
|
|
} |
221 |
|
|
|
222 |
root |
1.18 |
=item snd_on $node, @msg |
223 |
|
|
|
224 |
|
|
Executes C<snd> with the given C<@msg> (which must include the destination |
225 |
|
|
port) on the given node. |
226 |
|
|
|
227 |
|
|
=cut |
228 |
|
|
|
229 |
|
|
sub snd_on($@) { |
230 |
|
|
my $node = shift; |
231 |
|
|
snd $node, snd => @_; |
232 |
|
|
} |
233 |
|
|
|
234 |
|
|
=item eval_on $node, $string |
235 |
|
|
|
236 |
|
|
Evaluates the given string as Perl expression on the given node. |
237 |
|
|
|
238 |
|
|
=cut |
239 |
|
|
|
240 |
|
|
sub eval_on($@) { |
241 |
|
|
my $node = shift; |
242 |
|
|
snd $node, eval => @_; |
243 |
|
|
} |
244 |
|
|
|
245 |
root |
1.1 |
sub kil(@) { |
246 |
root |
1.21 |
my ($nodeid, $portid) = split /#/, shift, 2; |
247 |
root |
1.1 |
|
248 |
|
|
length $portid |
249 |
root |
1.21 |
or Carp::croak "$nodeid#$portid: killing a node port is not allowed, caught"; |
250 |
root |
1.1 |
|
251 |
root |
1.21 |
($NODE{$nodeid} || add_node $nodeid) |
252 |
root |
1.1 |
->kill ("$portid", @_); |
253 |
|
|
} |
254 |
|
|
|
255 |
root |
1.7 |
sub _nodename { |
256 |
|
|
require POSIX; |
257 |
|
|
(POSIX::uname ())[1] |
258 |
|
|
} |
259 |
|
|
|
260 |
root |
1.21 |
sub _resolve($) { |
261 |
|
|
my ($nodeid) = @_; |
262 |
root |
1.1 |
|
263 |
|
|
my $cv = AE::cv; |
264 |
|
|
my @res; |
265 |
|
|
|
266 |
|
|
$cv->begin (sub { |
267 |
|
|
my %seen; |
268 |
|
|
my @refs; |
269 |
|
|
for (sort { $a->[0] <=> $b->[0] } @res) { |
270 |
|
|
push @refs, $_->[1] unless $seen{$_->[1]}++ |
271 |
|
|
} |
272 |
root |
1.21 |
shift->send (@refs); |
273 |
root |
1.1 |
}); |
274 |
|
|
|
275 |
root |
1.21 |
$nodeid = $DEFAULT_PORT unless length $nodeid; |
276 |
root |
1.1 |
|
277 |
|
|
my $idx; |
278 |
root |
1.21 |
for my $t (split /,/, $nodeid) { |
279 |
root |
1.1 |
my $pri = ++$idx; |
280 |
root |
1.7 |
|
281 |
|
|
$t = length $t ? _nodename . ":$t" : _nodename |
282 |
|
|
if $t =~ /^\d*$/; |
283 |
root |
1.1 |
|
284 |
root |
1.7 |
my ($host, $port) = AnyEvent::Socket::parse_hostport $t, "aemp=$DEFAULT_PORT" |
285 |
|
|
or Carp::croak "$t: unparsable transport descriptor"; |
286 |
|
|
|
287 |
|
|
$cv->begin; |
288 |
|
|
AnyEvent::Socket::resolve_sockaddr $host, $port, "tcp", 0, undef, sub { |
289 |
|
|
for (@_) { |
290 |
|
|
my ($service, $host) = AnyEvent::Socket::unpack_sockaddr $_->[3]; |
291 |
|
|
push @res, [ |
292 |
|
|
$pri += 1e-5, |
293 |
|
|
AnyEvent::Socket::format_hostport AnyEvent::Socket::format_address $host, $service |
294 |
|
|
]; |
295 |
root |
1.1 |
} |
296 |
root |
1.7 |
$cv->end; |
297 |
|
|
}; |
298 |
root |
1.1 |
} |
299 |
|
|
|
300 |
|
|
$cv->end; |
301 |
|
|
|
302 |
|
|
$cv |
303 |
|
|
} |
304 |
|
|
|
305 |
root |
1.22 |
sub initialise_node(;$%) { |
306 |
root |
1.21 |
my ($profile) = @_; |
307 |
root |
1.1 |
|
308 |
root |
1.21 |
$profile = _nodename |
309 |
|
|
unless defined $profile; |
310 |
root |
1.6 |
|
311 |
root |
1.21 |
$CONFIG = AnyEvent::MP::Config::find_profile $profile; |
312 |
root |
1.24 |
|
313 |
|
|
my $node = exists $CONFIG->{nodeid} ? $CONFIG->{nodeid} : $profile; |
314 |
|
|
$NODE = $node |
315 |
|
|
unless $node eq "anon/"; |
316 |
root |
1.6 |
|
317 |
root |
1.21 |
$NODE{$NODE} = $NODE{""}; |
318 |
|
|
$NODE{$NODE}{id} = $NODE; |
319 |
root |
1.20 |
|
320 |
root |
1.21 |
my $seeds = $CONFIG->{seeds}; |
321 |
|
|
my $binds = $CONFIG->{binds}; |
322 |
root |
1.3 |
|
323 |
root |
1.21 |
$binds ||= [$NODE]; |
324 |
root |
1.1 |
|
325 |
root |
1.21 |
$WARN->(8, "node $NODE starting up."); |
326 |
root |
1.1 |
|
327 |
root |
1.23 |
$LISTENER = []; |
328 |
|
|
%LISTENER = (); |
329 |
|
|
|
330 |
root |
1.21 |
for (map _resolve $_, @$binds) { |
331 |
|
|
for my $bind ($_->recv) { |
332 |
|
|
my ($host, $port) = AnyEvent::Socket::parse_hostport $bind |
333 |
|
|
or Carp::croak "$bind: unparsable local bind address"; |
334 |
root |
1.20 |
|
335 |
root |
1.21 |
$LISTENER{$bind} = AnyEvent::MP::Transport::mp_server $host, $port; |
336 |
|
|
push @$LISTENER, $bind; |
337 |
|
|
} |
338 |
root |
1.1 |
} |
339 |
|
|
|
340 |
root |
1.21 |
# the global service is mandatory currently |
341 |
|
|
require AnyEvent::MP::Global; |
342 |
root |
1.1 |
|
343 |
root |
1.21 |
# connect to all seednodes |
344 |
|
|
AnyEvent::MP::Global::set_seeds (map $_->recv, map _resolve $_, @$seeds); |
345 |
root |
1.1 |
|
346 |
root |
1.20 |
for (@{ $CONFIG->{services} }) { |
347 |
root |
1.13 |
if (s/::$//) { |
348 |
|
|
eval "require $_"; |
349 |
|
|
die $@ if $@; |
350 |
|
|
} else { |
351 |
|
|
(load_func $_)->(); |
352 |
|
|
} |
353 |
|
|
} |
354 |
root |
1.1 |
} |
355 |
|
|
|
356 |
|
|
############################################################################# |
357 |
root |
1.6 |
# node monitoring and info |
358 |
root |
1.3 |
|
359 |
root |
1.21 |
=item node_is_known $nodeid |
360 |
root |
1.13 |
|
361 |
|
|
Returns true iff the given node is currently known to the system. |
362 |
|
|
|
363 |
|
|
=cut |
364 |
|
|
|
365 |
|
|
sub node_is_known($) { |
366 |
|
|
exists $NODE{$_[0]} |
367 |
|
|
} |
368 |
|
|
|
369 |
root |
1.21 |
=item node_is_up $nodeid |
370 |
root |
1.13 |
|
371 |
|
|
Returns true if the given node is "up", that is, the kernel thinks it has |
372 |
|
|
a working connection to it. |
373 |
|
|
|
374 |
|
|
If the node is known but not currently connected, returns C<0>. If the |
375 |
|
|
node is not known, returns C<undef>. |
376 |
|
|
|
377 |
|
|
=cut |
378 |
|
|
|
379 |
|
|
sub node_is_up($) { |
380 |
|
|
($NODE{$_[0]} or return)->{transport} |
381 |
|
|
? 1 : 0 |
382 |
|
|
} |
383 |
|
|
|
384 |
root |
1.3 |
=item known_nodes |
385 |
|
|
|
386 |
root |
1.26 |
Returns the node IDs of all nodes currently known to this node, including |
387 |
|
|
itself and nodes not currently connected. |
388 |
root |
1.3 |
|
389 |
|
|
=cut |
390 |
|
|
|
391 |
|
|
sub known_nodes { |
392 |
root |
1.26 |
map $_->{id}, values %NODE |
393 |
root |
1.3 |
} |
394 |
|
|
|
395 |
|
|
=item up_nodes |
396 |
|
|
|
397 |
root |
1.26 |
Return the node IDs of all nodes that are currently connected (excluding |
398 |
|
|
the node itself). |
399 |
root |
1.3 |
|
400 |
|
|
=cut |
401 |
|
|
|
402 |
|
|
sub up_nodes { |
403 |
root |
1.26 |
map $_->{id}, grep $_->{transport}, values %NODE |
404 |
root |
1.3 |
} |
405 |
|
|
|
406 |
root |
1.21 |
=item $guard = mon_nodes $callback->($nodeid, $is_up, @reason) |
407 |
root |
1.3 |
|
408 |
root |
1.27 |
Registers a callback that is called each time a node goes up (a connection |
409 |
|
|
is established) or down (the connection is lost). |
410 |
root |
1.3 |
|
411 |
|
|
Node up messages can only be followed by node down messages for the same |
412 |
|
|
node, and vice versa. |
413 |
|
|
|
414 |
root |
1.27 |
Note that monitoring a node is usually better done by monitoring it's node |
415 |
|
|
port. This function is mainly of interest to modules that are concerned |
416 |
|
|
about the network topology and low-level connection handling. |
417 |
|
|
|
418 |
|
|
Callbacks I<must not> block and I<should not> send any messages. |
419 |
|
|
|
420 |
|
|
The function returns an optional guard which can be used to unregister |
421 |
root |
1.3 |
the monitoring callback again. |
422 |
|
|
|
423 |
|
|
=cut |
424 |
|
|
|
425 |
|
|
our %MON_NODES; |
426 |
|
|
|
427 |
|
|
sub mon_nodes($) { |
428 |
|
|
my ($cb) = @_; |
429 |
|
|
|
430 |
|
|
$MON_NODES{$cb+0} = $cb; |
431 |
|
|
|
432 |
|
|
wantarray && AnyEvent::Util::guard { delete $MON_NODES{$cb+0} } |
433 |
|
|
} |
434 |
|
|
|
435 |
|
|
sub _inject_nodeevent($$;@) { |
436 |
root |
1.16 |
my ($node, $up, @reason) = @_; |
437 |
root |
1.3 |
|
438 |
|
|
for my $cb (values %MON_NODES) { |
439 |
root |
1.21 |
eval { $cb->($node->{id}, $up, @reason); 1 } |
440 |
root |
1.16 |
or $WARN->(1, $@); |
441 |
root |
1.3 |
} |
442 |
root |
1.16 |
|
443 |
root |
1.21 |
$WARN->(7, "$node->{id} is " . ($up ? "up" : "down") . " (@reason)"); |
444 |
root |
1.3 |
} |
445 |
|
|
|
446 |
|
|
############################################################################# |
447 |
root |
1.1 |
# self node code |
448 |
|
|
|
449 |
|
|
our %node_req = ( |
450 |
|
|
# internal services |
451 |
|
|
|
452 |
|
|
# monitoring |
453 |
root |
1.27 |
mon0 => sub { # stop monitoring a port |
454 |
root |
1.1 |
my $portid = shift; |
455 |
|
|
my $node = $SRCNODE; |
456 |
|
|
$NODE{""}->unmonitor ($portid, delete $node->{rmon}{$portid}); |
457 |
|
|
}, |
458 |
root |
1.27 |
mon1 => sub { # start monitoring a port |
459 |
root |
1.1 |
my $portid = shift; |
460 |
|
|
my $node = $SRCNODE; |
461 |
root |
1.27 |
Scalar::Util::weaken $node; #TODO# ugly |
462 |
root |
1.1 |
$NODE{""}->monitor ($portid, $node->{rmon}{$portid} = sub { |
463 |
root |
1.27 |
$node->send (["", kil => $portid, @_]) |
464 |
|
|
if $node && $node->{transport}; #TODO# ugly, should use snd and remove-on-disocnnect |
465 |
root |
1.1 |
}); |
466 |
|
|
}, |
467 |
|
|
kil => sub { |
468 |
|
|
my $cbs = delete $SRCNODE->{lmon}{+shift} |
469 |
|
|
or return; |
470 |
|
|
|
471 |
|
|
$_->(@_) for @$cbs; |
472 |
|
|
}, |
473 |
|
|
|
474 |
root |
1.18 |
# "public" services - not actually public |
475 |
root |
1.1 |
|
476 |
|
|
# relay message to another node / generic echo |
477 |
root |
1.15 |
snd => \&snd, |
478 |
root |
1.27 |
snd_multiple => sub { |
479 |
root |
1.1 |
snd @$_ for @_ |
480 |
|
|
}, |
481 |
|
|
|
482 |
root |
1.4 |
# informational |
483 |
|
|
info => sub { |
484 |
|
|
snd @_, $NODE; |
485 |
|
|
}, |
486 |
|
|
known_nodes => sub { |
487 |
|
|
snd @_, known_nodes; |
488 |
|
|
}, |
489 |
|
|
up_nodes => sub { |
490 |
|
|
snd @_, up_nodes; |
491 |
|
|
}, |
492 |
|
|
|
493 |
root |
1.1 |
# random garbage |
494 |
|
|
eval => sub { |
495 |
|
|
my @res = eval shift; |
496 |
|
|
snd @_, "$@", @res if @_; |
497 |
|
|
}, |
498 |
|
|
time => sub { |
499 |
|
|
snd @_, AE::time; |
500 |
|
|
}, |
501 |
|
|
devnull => sub { |
502 |
|
|
# |
503 |
|
|
}, |
504 |
root |
1.15 |
"" => sub { |
505 |
root |
1.27 |
# empty messages are keepalives or similar devnull-applications |
506 |
root |
1.15 |
}, |
507 |
root |
1.1 |
); |
508 |
|
|
|
509 |
root |
1.18 |
$NODE{""} = $NODE{$NODE} = new AnyEvent::MP::Node::Self $NODE; |
510 |
root |
1.1 |
$PORT{""} = sub { |
511 |
|
|
my $tag = shift; |
512 |
|
|
eval { &{ $node_req{$tag} ||= load_func $tag } }; |
513 |
root |
1.16 |
$WARN->(2, "error processing node message: $@") if $@; |
514 |
root |
1.1 |
}; |
515 |
|
|
|
516 |
|
|
=back |
517 |
|
|
|
518 |
|
|
=head1 SEE ALSO |
519 |
|
|
|
520 |
|
|
L<AnyEvent::MP>. |
521 |
|
|
|
522 |
|
|
=head1 AUTHOR |
523 |
|
|
|
524 |
|
|
Marc Lehmann <schmorp@schmorp.de> |
525 |
|
|
http://home.schmorp.de/ |
526 |
|
|
|
527 |
|
|
=cut |
528 |
|
|
|
529 |
|
|
1 |
530 |
|
|
|