1 |
package cf; |
2 |
|
3 |
use utf8; |
4 |
use strict; |
5 |
|
6 |
use Symbol; |
7 |
use List::Util; |
8 |
use Storable; |
9 |
use Opcode; |
10 |
use Safe; |
11 |
use Safe::Hole; |
12 |
|
13 |
use Coro 3.3; |
14 |
use Coro::Event; |
15 |
use Coro::Timer; |
16 |
use Coro::Signal; |
17 |
use Coro::Semaphore; |
18 |
use Coro::AIO; |
19 |
|
20 |
use Fcntl; |
21 |
use IO::AIO 2.31 (); |
22 |
use YAML::Syck (); |
23 |
use Time::HiRes; |
24 |
|
25 |
use Event; $Event::Eval = 1; # no idea why this is required, but it is |
26 |
|
27 |
# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? |
28 |
$YAML::Syck::ImplicitUnicode = 1; |
29 |
|
30 |
$Coro::main->prio (2); # run main coroutine ("the server") with very high priority |
31 |
|
32 |
sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload |
33 |
|
34 |
our %COMMAND = (); |
35 |
our %COMMAND_TIME = (); |
36 |
our %EXTCMD = (); |
37 |
|
38 |
our @EVENT; |
39 |
our $LIBDIR = datadir . "/ext"; |
40 |
|
41 |
our $TICK = MAX_TIME * 1e-6; |
42 |
our $TICK_WATCHER; |
43 |
our $NEXT_TICK; |
44 |
our $NOW; |
45 |
|
46 |
our %CFG; |
47 |
|
48 |
our $UPTIME; $UPTIME ||= time; |
49 |
our $RUNTIME; |
50 |
|
51 |
our %MAP; # all maps |
52 |
our $LINK_MAP; # the special {link} map |
53 |
our $FREEZE; |
54 |
|
55 |
binmode STDOUT; |
56 |
binmode STDERR; |
57 |
|
58 |
# read virtual server time, if available |
59 |
unless ($RUNTIME || !-e cf::localdir . "/runtime") { |
60 |
open my $fh, "<", cf::localdir . "/runtime" |
61 |
or die "unable to read runtime file: $!"; |
62 |
$RUNTIME = <$fh> + 0.; |
63 |
} |
64 |
|
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mkdir cf::localdir; |
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mkdir cf::localdir . "/" . cf::playerdir; |
67 |
mkdir cf::localdir . "/" . cf::tmpdir; |
68 |
mkdir cf::localdir . "/" . cf::uniquedir; |
69 |
|
70 |
our %EXT_CORO; |
71 |
|
72 |
############################################################################# |
73 |
|
74 |
=head2 GLOBAL VARIABLES |
75 |
|
76 |
=over 4 |
77 |
|
78 |
=item $cf::UPTIME |
79 |
|
80 |
The timestamp of the server start (so not actually an uptime). |
81 |
|
82 |
=item $cf::RUNTIME |
83 |
|
84 |
The time this server has run, starts at 0 and is increased by $cf::TICK on |
85 |
every server tick. |
86 |
|
87 |
=item $cf::LIBDIR |
88 |
|
89 |
The perl library directory, where extensions and cf-specific modules can |
90 |
be found. It will be added to C<@INC> automatically. |
91 |
|
92 |
=item $cf::NOW |
93 |
|
94 |
The time of the last (current) server tick. |
95 |
|
96 |
=item $cf::TICK |
97 |
|
98 |
The interval between server ticks, in seconds. |
99 |
|
100 |
=item %cf::CFG |
101 |
|
102 |
Configuration for the server, loaded from C</etc/crossfire/config>, or |
103 |
from wherever your confdir points to. |
104 |
|
105 |
=back |
106 |
|
107 |
=cut |
108 |
|
109 |
BEGIN { |
110 |
*CORE::GLOBAL::warn = sub { |
111 |
my $msg = join "", @_; |
112 |
utf8::encode $msg; |
113 |
|
114 |
$msg .= "\n" |
115 |
unless $msg =~ /\n$/; |
116 |
|
117 |
LOG llevError, "cfperl: $msg"; |
118 |
}; |
119 |
} |
120 |
|
121 |
@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; |
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@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; |
123 |
@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; |
124 |
@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; |
125 |
@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; |
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@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; |
127 |
|
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# we bless all objects into (empty) derived classes to force a method lookup |
129 |
# within the Safe compartment. |
130 |
for my $pkg (qw( |
131 |
cf::global cf::attachable |
132 |
cf::object cf::object::player |
133 |
cf::client cf::player |
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cf::arch cf::living |
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cf::map cf::party cf::region |
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)) { |
137 |
no strict 'refs'; |
138 |
@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; |
139 |
} |
140 |
|
141 |
$Event::DIED = sub { |
142 |
warn "error in event callback: @_"; |
143 |
}; |
144 |
|
145 |
my %ext_pkg; |
146 |
my @exts; |
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my @hook; |
148 |
|
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=head2 UTILITY FUNCTIONS |
150 |
|
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=over 4 |
152 |
|
153 |
=cut |
154 |
|
155 |
use JSON::Syck (); # TODO# replace by JSON::PC once working |
156 |
|
157 |
=item $ref = cf::from_json $json |
158 |
|
159 |
Converts a JSON string into the corresponding perl data structure. |
160 |
|
161 |
=cut |
162 |
|
163 |
sub from_json($) { |
164 |
$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs |
165 |
JSON::Syck::Load $_[0] |
166 |
} |
167 |
|
168 |
=item $json = cf::to_json $ref |
169 |
|
170 |
Converts a perl data structure into its JSON representation. |
171 |
|
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=cut |
173 |
|
174 |
sub to_json($) { |
175 |
$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs |
176 |
JSON::Syck::Dump $_[0] |
177 |
} |
178 |
|
179 |
# main coro must never ever "block" except in Event |
180 |
# sync_job ensures this by running the job in a coroutine |
181 |
# and waiting in Event while the server is otherwise frozen |
182 |
sub sync_job(&) { |
183 |
my ($job) = @_; |
184 |
|
185 |
my $busy = 1; |
186 |
my @res; |
187 |
|
188 |
local $FREEZE = 1; |
189 |
|
190 |
my $coro = Coro::async { |
191 |
@res = eval { $job->() }; |
192 |
warn $@ if $@; |
193 |
undef $busy; |
194 |
}; |
195 |
|
196 |
if ($Coro::current == $Coro::main) { |
197 |
$coro->prio (Coro::PRIO_MAX); |
198 |
while ($busy) { |
199 |
Coro::cede_notself; |
200 |
Event::one_event unless Coro::nready; |
201 |
} |
202 |
} else { |
203 |
$coro->join; |
204 |
} |
205 |
|
206 |
wantarray ? @res : $res[0] |
207 |
} |
208 |
|
209 |
=item $coro = cf::coro { BLOCK } |
210 |
|
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Creates and returns a new coro. This coro is automcatially being canceled |
212 |
when the extension calling this is being unloaded. |
213 |
|
214 |
=cut |
215 |
|
216 |
sub coro(&) { |
217 |
my $cb = shift; |
218 |
|
219 |
my $coro; $coro = async { |
220 |
eval { |
221 |
$cb->(); |
222 |
}; |
223 |
warn $@ if $@; |
224 |
}; |
225 |
|
226 |
$coro->on_destroy (sub { |
227 |
delete $EXT_CORO{$coro+0}; |
228 |
}); |
229 |
$EXT_CORO{$coro+0} = $coro; |
230 |
|
231 |
$coro |
232 |
} |
233 |
|
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=back |
235 |
|
236 |
=cut |
237 |
|
238 |
############################################################################# |
239 |
|
240 |
=head2 ATTACHABLE OBJECTS |
241 |
|
242 |
Many objects in crossfire are so-called attachable objects. That means you can |
243 |
attach callbacks/event handlers (a collection of which is called an "attachment") |
244 |
to it. All such attachable objects support the following methods. |
245 |
|
246 |
In the following description, CLASS can be any of C<global>, C<object> |
247 |
C<player>, C<client> or C<map> (i.e. the attachable objects in |
248 |
crossfire+). |
249 |
|
250 |
=over 4 |
251 |
|
252 |
=item $attachable->attach ($attachment, key => $value...) |
253 |
|
254 |
=item $attachable->detach ($attachment) |
255 |
|
256 |
Attach/detach a pre-registered attachment to a specific object and give it |
257 |
the specified key/value pairs as arguments. |
258 |
|
259 |
Example, attach a minesweeper attachment to the given object, making it a |
260 |
10x10 minesweeper game: |
261 |
|
262 |
$obj->attach (minesweeper => width => 10, height => 10); |
263 |
|
264 |
=item $bool = $attachable->attached ($name) |
265 |
|
266 |
Checks wether the named attachment is currently attached to the object. |
267 |
|
268 |
=item cf::CLASS->attach ... |
269 |
|
270 |
=item cf::CLASS->detach ... |
271 |
|
272 |
Define an anonymous attachment and attach it to all objects of the given |
273 |
CLASS. See the next function for an explanation of its arguments. |
274 |
|
275 |
You can attach to global events by using the C<cf::global> class. |
276 |
|
277 |
Example, log all player logins: |
278 |
|
279 |
cf::player->attach ( |
280 |
on_login => sub { |
281 |
my ($pl) = @_; |
282 |
... |
283 |
}, |
284 |
); |
285 |
|
286 |
Example, attach to the jeweler skill: |
287 |
|
288 |
cf::object->attach ( |
289 |
type => cf::SKILL, |
290 |
subtype => cf::SK_JEWELER, |
291 |
on_use_skill => sub { |
292 |
my ($sk, $ob, $part, $dir, $msg) = @_; |
293 |
... |
294 |
}, |
295 |
); |
296 |
|
297 |
=item cf::CLASS::attachment $name, ... |
298 |
|
299 |
Register an attachment by C<$name> through which attachable objects of the |
300 |
given CLASS can refer to this attachment. |
301 |
|
302 |
Some classes such as crossfire maps and objects can specify attachments |
303 |
that are attached at load/instantiate time, thus the need for a name. |
304 |
|
305 |
These calls expect any number of the following handler/hook descriptions: |
306 |
|
307 |
=over 4 |
308 |
|
309 |
=item prio => $number |
310 |
|
311 |
Set the priority for all following handlers/hooks (unless overwritten |
312 |
by another C<prio> setting). Lower priority handlers get executed |
313 |
earlier. The default priority is C<0>, and many built-in handlers are |
314 |
registered at priority C<-1000>, so lower priorities should not be used |
315 |
unless you know what you are doing. |
316 |
|
317 |
=item type => $type |
318 |
|
319 |
(Only for C<< cf::object->attach >> calls), limits the attachment to the |
320 |
given type of objects only (the additional parameter C<subtype> can be |
321 |
used to further limit to the given subtype). |
322 |
|
323 |
=item on_I<event> => \&cb |
324 |
|
325 |
Call the given code reference whenever the named event happens (event is |
326 |
something like C<instantiate>, C<apply>, C<use_skill> and so on, and which |
327 |
handlers are recognised generally depends on the type of object these |
328 |
handlers attach to). |
329 |
|
330 |
See F<include/eventinc.h> for the full list of events supported, and their |
331 |
class. |
332 |
|
333 |
=item package => package:: |
334 |
|
335 |
Look for sub functions of the name C<< on_I<event> >> in the given |
336 |
package and register them. Only handlers for eevents supported by the |
337 |
object/class are recognised. |
338 |
|
339 |
=back |
340 |
|
341 |
Example, define an attachment called "sockpuppet" that calls the given |
342 |
event handler when a monster attacks: |
343 |
|
344 |
cf::object::attachment sockpuppet => |
345 |
on_skill_attack => sub { |
346 |
my ($self, $victim) = @_; |
347 |
... |
348 |
} |
349 |
} |
350 |
|
351 |
=item $attachable->valid |
352 |
|
353 |
Just because you have a perl object does not mean that the corresponding |
354 |
C-level object still exists. If you try to access an object that has no |
355 |
valid C counterpart anymore you get an exception at runtime. This method |
356 |
can be used to test for existence of the C object part without causing an |
357 |
exception. |
358 |
|
359 |
=cut |
360 |
|
361 |
# the following variables are defined in .xs and must not be re-created |
362 |
our @CB_GLOBAL = (); # registry for all global events |
363 |
our @CB_ATTACHABLE = (); # registry for all attachables |
364 |
our @CB_OBJECT = (); # all objects (should not be used except in emergency) |
365 |
our @CB_PLAYER = (); |
366 |
our @CB_CLIENT = (); |
367 |
our @CB_TYPE = (); # registry for type (cf-object class) based events |
368 |
our @CB_MAP = (); |
369 |
|
370 |
my %attachment; |
371 |
|
372 |
sub _attach_cb($$$$) { |
373 |
my ($registry, $event, $prio, $cb) = @_; |
374 |
|
375 |
use sort 'stable'; |
376 |
|
377 |
$cb = [$prio, $cb]; |
378 |
|
379 |
@{$registry->[$event]} = sort |
380 |
{ $a->[0] cmp $b->[0] } |
381 |
@{$registry->[$event] || []}, $cb; |
382 |
} |
383 |
|
384 |
# hack |
385 |
my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP; |
386 |
|
387 |
# attach handles attaching event callbacks |
388 |
# the only thing the caller has to do is pass the correct |
389 |
# registry (== where the callback attaches to). |
390 |
sub _attach { |
391 |
my ($registry, $klass, @arg) = @_; |
392 |
|
393 |
my $object_type; |
394 |
my $prio = 0; |
395 |
my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; |
396 |
|
397 |
#TODO: get rid of this hack |
398 |
if ($attachable_klass{$klass}) { |
399 |
%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT); |
400 |
} |
401 |
|
402 |
while (@arg) { |
403 |
my $type = shift @arg; |
404 |
|
405 |
if ($type eq "prio") { |
406 |
$prio = shift @arg; |
407 |
|
408 |
} elsif ($type eq "type") { |
409 |
$object_type = shift @arg; |
410 |
$registry = $CB_TYPE[$object_type] ||= []; |
411 |
|
412 |
} elsif ($type eq "subtype") { |
413 |
defined $object_type or Carp::croak "subtype specified without type"; |
414 |
my $object_subtype = shift @arg; |
415 |
$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; |
416 |
|
417 |
} elsif ($type eq "package") { |
418 |
my $pkg = shift @arg; |
419 |
|
420 |
while (my ($name, $id) = each %cb_id) { |
421 |
if (my $cb = $pkg->can ($name)) { |
422 |
_attach_cb $registry, $id, $prio, $cb; |
423 |
} |
424 |
} |
425 |
|
426 |
} elsif (exists $cb_id{$type}) { |
427 |
_attach_cb $registry, $cb_id{$type}, $prio, shift @arg; |
428 |
|
429 |
} elsif (ref $type) { |
430 |
warn "attaching objects not supported, ignoring.\n"; |
431 |
|
432 |
} else { |
433 |
shift @arg; |
434 |
warn "attach argument '$type' not supported, ignoring.\n"; |
435 |
} |
436 |
} |
437 |
} |
438 |
|
439 |
sub _object_attach { |
440 |
my ($obj, $name, %arg) = @_; |
441 |
|
442 |
return if exists $obj->{_attachment}{$name}; |
443 |
|
444 |
if (my $attach = $attachment{$name}) { |
445 |
my $registry = $obj->registry; |
446 |
|
447 |
for (@$attach) { |
448 |
my ($klass, @attach) = @$_; |
449 |
_attach $registry, $klass, @attach; |
450 |
} |
451 |
|
452 |
$obj->{$name} = \%arg; |
453 |
} else { |
454 |
warn "object uses attachment '$name' that is not available, postponing.\n"; |
455 |
} |
456 |
|
457 |
$obj->{_attachment}{$name} = undef; |
458 |
} |
459 |
|
460 |
sub cf::attachable::attach { |
461 |
if (ref $_[0]) { |
462 |
_object_attach @_; |
463 |
} else { |
464 |
_attach shift->_attach_registry, @_; |
465 |
} |
466 |
}; |
467 |
|
468 |
# all those should be optimised |
469 |
sub cf::attachable::detach { |
470 |
my ($obj, $name) = @_; |
471 |
|
472 |
if (ref $obj) { |
473 |
delete $obj->{_attachment}{$name}; |
474 |
reattach ($obj); |
475 |
} else { |
476 |
Carp::croak "cannot, currently, detach class attachments"; |
477 |
} |
478 |
}; |
479 |
|
480 |
sub cf::attachable::attached { |
481 |
my ($obj, $name) = @_; |
482 |
|
483 |
exists $obj->{_attachment}{$name} |
484 |
} |
485 |
|
486 |
for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) { |
487 |
eval "#line " . __LINE__ . " 'cf.pm' |
488 |
sub cf::\L$klass\E::_attach_registry { |
489 |
(\\\@CB_$klass, KLASS_$klass) |
490 |
} |
491 |
|
492 |
sub cf::\L$klass\E::attachment { |
493 |
my \$name = shift; |
494 |
|
495 |
\$attachment{\$name} = [[KLASS_$klass, \@_]]; |
496 |
} |
497 |
"; |
498 |
die if $@; |
499 |
} |
500 |
|
501 |
our $override; |
502 |
our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? |
503 |
|
504 |
sub override { |
505 |
$override = 1; |
506 |
@invoke_results = (); |
507 |
} |
508 |
|
509 |
sub do_invoke { |
510 |
my $event = shift; |
511 |
my $callbacks = shift; |
512 |
|
513 |
@invoke_results = (); |
514 |
|
515 |
local $override; |
516 |
|
517 |
for (@$callbacks) { |
518 |
eval { &{$_->[1]} }; |
519 |
|
520 |
if ($@) { |
521 |
warn "$@"; |
522 |
warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; |
523 |
override; |
524 |
} |
525 |
|
526 |
return 1 if $override; |
527 |
} |
528 |
|
529 |
0 |
530 |
} |
531 |
|
532 |
=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...) |
533 |
|
534 |
=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...) |
535 |
|
536 |
Generate an object-specific event with the given arguments. |
537 |
|
538 |
This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be |
539 |
removed in future versions), and there is no public API to access override |
540 |
results (if you must, access C<@cf::invoke_results> directly). |
541 |
|
542 |
=back |
543 |
|
544 |
=cut |
545 |
|
546 |
############################################################################# |
547 |
# object support |
548 |
|
549 |
sub reattach { |
550 |
# basically do the same as instantiate, without calling instantiate |
551 |
my ($obj) = @_; |
552 |
|
553 |
my $registry = $obj->registry; |
554 |
|
555 |
@$registry = (); |
556 |
|
557 |
delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; |
558 |
|
559 |
for my $name (keys %{ $obj->{_attachment} || {} }) { |
560 |
if (my $attach = $attachment{$name}) { |
561 |
for (@$attach) { |
562 |
my ($klass, @attach) = @$_; |
563 |
_attach $registry, $klass, @attach; |
564 |
} |
565 |
} else { |
566 |
warn "object uses attachment '$name' that is not available, postponing.\n"; |
567 |
} |
568 |
} |
569 |
} |
570 |
|
571 |
cf::attachable->attach ( |
572 |
prio => -1000000, |
573 |
on_instantiate => sub { |
574 |
my ($obj, $data) = @_; |
575 |
|
576 |
$data = from_json $data; |
577 |
|
578 |
for (@$data) { |
579 |
my ($name, $args) = @$_; |
580 |
|
581 |
$obj->attach ($name, %{$args || {} }); |
582 |
} |
583 |
}, |
584 |
on_reattach => \&reattach, |
585 |
on_clone => sub { |
586 |
my ($src, $dst) = @_; |
587 |
|
588 |
@{$dst->registry} = @{$src->registry}; |
589 |
|
590 |
%$dst = %$src; |
591 |
|
592 |
%{$dst->{_attachment}} = %{$src->{_attachment}} |
593 |
if exists $src->{_attachment}; |
594 |
}, |
595 |
); |
596 |
|
597 |
sub object_freezer_save { |
598 |
my ($filename, $rdata, $objs) = @_; |
599 |
|
600 |
sync_job { |
601 |
if (length $$rdata) { |
602 |
warn sprintf "saving %s (%d,%d)\n", |
603 |
$filename, length $$rdata, scalar @$objs; |
604 |
|
605 |
if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { |
606 |
chmod SAVE_MODE, $fh; |
607 |
aio_write $fh, 0, (length $$rdata), $$rdata, 0; |
608 |
aio_fsync $fh; |
609 |
close $fh; |
610 |
|
611 |
if (@$objs) { |
612 |
if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { |
613 |
chmod SAVE_MODE, $fh; |
614 |
my $data = Storable::nfreeze { version => 1, objs => $objs }; |
615 |
aio_write $fh, 0, (length $data), $data, 0; |
616 |
aio_fsync $fh; |
617 |
close $fh; |
618 |
aio_rename "$filename.pst~", "$filename.pst"; |
619 |
} |
620 |
} else { |
621 |
aio_unlink "$filename.pst"; |
622 |
} |
623 |
|
624 |
aio_rename "$filename~", $filename; |
625 |
} else { |
626 |
warn "FATAL: $filename~: $!\n"; |
627 |
} |
628 |
} else { |
629 |
aio_unlink $filename; |
630 |
aio_unlink "$filename.pst"; |
631 |
} |
632 |
} |
633 |
} |
634 |
|
635 |
sub object_freezer_as_string { |
636 |
my ($rdata, $objs) = @_; |
637 |
|
638 |
use Data::Dumper; |
639 |
|
640 |
$$rdata . Dumper $objs |
641 |
} |
642 |
|
643 |
sub object_thawer_load { |
644 |
my ($filename) = @_; |
645 |
|
646 |
my ($data, $av); |
647 |
|
648 |
(aio_load $filename, $data) >= 0 |
649 |
or return; |
650 |
|
651 |
unless (aio_stat "$filename.pst") { |
652 |
(aio_load "$filename.pst", $av) >= 0 |
653 |
or return; |
654 |
$av = eval { (Storable::thaw <$av>)->{objs} }; |
655 |
} |
656 |
|
657 |
return ($data, $av); |
658 |
} |
659 |
|
660 |
############################################################################# |
661 |
# command handling &c |
662 |
|
663 |
=item cf::register_command $name => \&callback($ob,$args); |
664 |
|
665 |
Register a callback for execution when the client sends the user command |
666 |
$name. |
667 |
|
668 |
=cut |
669 |
|
670 |
sub register_command { |
671 |
my ($name, $cb) = @_; |
672 |
|
673 |
my $caller = caller; |
674 |
#warn "registering command '$name/$time' to '$caller'"; |
675 |
|
676 |
push @{ $COMMAND{$name} }, [$caller, $cb]; |
677 |
} |
678 |
|
679 |
=item cf::register_extcmd $name => \&callback($pl,$packet); |
680 |
|
681 |
Register a callbackf ro execution when the client sends an extcmd packet. |
682 |
|
683 |
If the callback returns something, it is sent back as if reply was being |
684 |
called. |
685 |
|
686 |
=cut |
687 |
|
688 |
sub register_extcmd { |
689 |
my ($name, $cb) = @_; |
690 |
|
691 |
my $caller = caller; |
692 |
#warn "registering extcmd '$name' to '$caller'"; |
693 |
|
694 |
$EXTCMD{$name} = [$cb, $caller]; |
695 |
} |
696 |
|
697 |
cf::player->attach ( |
698 |
on_command => sub { |
699 |
my ($pl, $name, $params) = @_; |
700 |
|
701 |
my $cb = $COMMAND{$name} |
702 |
or return; |
703 |
|
704 |
for my $cmd (@$cb) { |
705 |
$cmd->[1]->($pl->ob, $params); |
706 |
} |
707 |
|
708 |
cf::override; |
709 |
}, |
710 |
on_extcmd => sub { |
711 |
my ($pl, $buf) = @_; |
712 |
|
713 |
my $msg = eval { from_json $buf }; |
714 |
|
715 |
if (ref $msg) { |
716 |
if (my $cb = $EXTCMD{$msg->{msgtype}}) { |
717 |
if (my %reply = $cb->[0]->($pl, $msg)) { |
718 |
$pl->ext_reply ($msg->{msgid}, %reply); |
719 |
} |
720 |
} |
721 |
} else { |
722 |
warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; |
723 |
} |
724 |
|
725 |
cf::override; |
726 |
}, |
727 |
); |
728 |
|
729 |
sub register { |
730 |
my ($base, $pkg) = @_; |
731 |
|
732 |
#TODO |
733 |
} |
734 |
|
735 |
sub load_extension { |
736 |
my ($path) = @_; |
737 |
|
738 |
$path =~ /([^\/\\]+)\.ext$/ or die "$path"; |
739 |
my $base = $1; |
740 |
my $pkg = $1; |
741 |
$pkg =~ s/[^[:word:]]/_/g; |
742 |
$pkg = "ext::$pkg"; |
743 |
|
744 |
warn "loading '$path' into '$pkg'\n"; |
745 |
|
746 |
open my $fh, "<:utf8", $path |
747 |
or die "$path: $!"; |
748 |
|
749 |
my $source = |
750 |
"package $pkg; use strict; use utf8;\n" |
751 |
. "#line 1 \"$path\"\n{\n" |
752 |
. (do { local $/; <$fh> }) |
753 |
. "\n};\n1"; |
754 |
|
755 |
eval $source |
756 |
or die $@ ? "$path: $@\n" |
757 |
: "extension disabled.\n"; |
758 |
|
759 |
push @exts, $pkg; |
760 |
$ext_pkg{$base} = $pkg; |
761 |
|
762 |
# no strict 'refs'; |
763 |
# @{"$pkg\::ISA"} = ext::; |
764 |
|
765 |
register $base, $pkg; |
766 |
} |
767 |
|
768 |
sub unload_extension { |
769 |
my ($pkg) = @_; |
770 |
|
771 |
warn "removing extension $pkg\n"; |
772 |
|
773 |
# remove hooks |
774 |
#TODO |
775 |
# for my $idx (0 .. $#PLUGIN_EVENT) { |
776 |
# delete $hook[$idx]{$pkg}; |
777 |
# } |
778 |
|
779 |
# remove commands |
780 |
for my $name (keys %COMMAND) { |
781 |
my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} }; |
782 |
|
783 |
if (@cb) { |
784 |
$COMMAND{$name} = \@cb; |
785 |
} else { |
786 |
delete $COMMAND{$name}; |
787 |
} |
788 |
} |
789 |
|
790 |
# remove extcmds |
791 |
for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) { |
792 |
delete $EXTCMD{$name}; |
793 |
} |
794 |
|
795 |
if (my $cb = $pkg->can ("unload")) { |
796 |
eval { |
797 |
$cb->($pkg); |
798 |
1 |
799 |
} or warn "$pkg unloaded, but with errors: $@"; |
800 |
} |
801 |
|
802 |
Symbol::delete_package $pkg; |
803 |
} |
804 |
|
805 |
sub load_extensions { |
806 |
for my $ext (<$LIBDIR/*.ext>) { |
807 |
next unless -r $ext; |
808 |
eval { |
809 |
load_extension $ext; |
810 |
1 |
811 |
} or warn "$ext not loaded: $@"; |
812 |
} |
813 |
} |
814 |
|
815 |
############################################################################# |
816 |
# load/save/clean perl data associated with a map |
817 |
|
818 |
*cf::mapsupport::on_clean = sub { |
819 |
my ($map) = @_; |
820 |
|
821 |
my $path = $map->tmpname; |
822 |
defined $path or return; |
823 |
|
824 |
unlink "$path.pst"; |
825 |
}; |
826 |
|
827 |
cf::map->attach (prio => -10000, package => cf::mapsupport::); |
828 |
|
829 |
############################################################################# |
830 |
# load/save perl data associated with player->ob objects |
831 |
|
832 |
sub all_objects(@) { |
833 |
@_, map all_objects ($_->inv), @_ |
834 |
} |
835 |
|
836 |
# TODO: compatibility cruft, remove when no longer needed |
837 |
cf::player->attach ( |
838 |
on_load => sub { |
839 |
my ($pl, $path) = @_; |
840 |
|
841 |
for my $o (all_objects $pl->ob) { |
842 |
if (my $value = $o->get_ob_key_value ("_perl_data")) { |
843 |
$o->set_ob_key_value ("_perl_data"); |
844 |
|
845 |
%$o = %{ Storable::thaw pack "H*", $value }; |
846 |
} |
847 |
} |
848 |
}, |
849 |
); |
850 |
|
851 |
############################################################################# |
852 |
|
853 |
=head2 CORE EXTENSIONS |
854 |
|
855 |
Functions and methods that extend core crossfire objects. |
856 |
|
857 |
=head3 cf::player |
858 |
|
859 |
=over 4 |
860 |
|
861 |
=item cf::player::exists $login |
862 |
|
863 |
Returns true when the given account exists. |
864 |
|
865 |
=cut |
866 |
|
867 |
sub cf::player::exists($) { |
868 |
cf::player::find $_[0] |
869 |
or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; |
870 |
} |
871 |
|
872 |
=item $player->ext_reply ($msgid, $msgtype, %msg) |
873 |
|
874 |
Sends an ext reply to the player. |
875 |
|
876 |
=cut |
877 |
|
878 |
sub cf::player::ext_reply($$$%) { |
879 |
my ($self, $id, %msg) = @_; |
880 |
|
881 |
$msg{msgid} = $id; |
882 |
|
883 |
$self->send ("ext " . to_json \%msg); |
884 |
} |
885 |
|
886 |
=back |
887 |
|
888 |
=head3 cf::object::player |
889 |
|
890 |
=over 4 |
891 |
|
892 |
=item $player_object->reply ($npc, $msg[, $flags]) |
893 |
|
894 |
Sends a message to the player, as if the npc C<$npc> replied. C<$npc> |
895 |
can be C<undef>. Does the right thing when the player is currently in a |
896 |
dialogue with the given NPC character. |
897 |
|
898 |
=cut |
899 |
|
900 |
# rough implementation of a future "reply" method that works |
901 |
# with dialog boxes. |
902 |
#TODO: the first argument must go, split into a $npc->reply_to ( method |
903 |
sub cf::object::player::reply($$$;$) { |
904 |
my ($self, $npc, $msg, $flags) = @_; |
905 |
|
906 |
$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; |
907 |
|
908 |
if ($self->{record_replies}) { |
909 |
push @{ $self->{record_replies} }, [$npc, $msg, $flags]; |
910 |
} else { |
911 |
$msg = $npc->name . " says: $msg" if $npc; |
912 |
$self->message ($msg, $flags); |
913 |
} |
914 |
} |
915 |
|
916 |
=item $player_object->may ("access") |
917 |
|
918 |
Returns wether the given player is authorized to access resource "access" |
919 |
(e.g. "command_wizcast"). |
920 |
|
921 |
=cut |
922 |
|
923 |
sub cf::object::player::may { |
924 |
my ($self, $access) = @_; |
925 |
|
926 |
$self->flag (cf::FLAG_WIZ) || |
927 |
(ref $cf::CFG{"may_$access"} |
928 |
? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} |
929 |
: $cf::CFG{"may_$access"}) |
930 |
} |
931 |
|
932 |
=head3 cf::client |
933 |
|
934 |
=over 4 |
935 |
|
936 |
=item $client->send_drawinfo ($text, $flags) |
937 |
|
938 |
Sends a drawinfo packet to the client. Circumvents output buffering so |
939 |
should not be used under normal circumstances. |
940 |
|
941 |
=cut |
942 |
|
943 |
sub cf::client::send_drawinfo { |
944 |
my ($self, $text, $flags) = @_; |
945 |
|
946 |
utf8::encode $text; |
947 |
$self->send_packet (sprintf "drawinfo %d %s", $flags, $text); |
948 |
} |
949 |
|
950 |
|
951 |
=item $success = $client->query ($flags, "text", \&cb) |
952 |
|
953 |
Queues a query to the client, calling the given callback with |
954 |
the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, |
955 |
C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. |
956 |
|
957 |
Queries can fail, so check the return code. Or don't, as queries will become |
958 |
reliable at some point in the future. |
959 |
|
960 |
=cut |
961 |
|
962 |
sub cf::client::query { |
963 |
my ($self, $flags, $text, $cb) = @_; |
964 |
|
965 |
return unless $self->state == ST_PLAYING |
966 |
|| $self->state == ST_SETUP |
967 |
|| $self->state == ST_CUSTOM; |
968 |
|
969 |
$self->state (ST_CUSTOM); |
970 |
|
971 |
utf8::encode $text; |
972 |
push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; |
973 |
|
974 |
$self->send_packet ($self->{query_queue}[0][0]) |
975 |
if @{ $self->{query_queue} } == 1; |
976 |
} |
977 |
|
978 |
cf::client->attach ( |
979 |
on_reply => sub { |
980 |
my ($ns, $msg) = @_; |
981 |
|
982 |
# this weird shuffling is so that direct followup queries |
983 |
# get handled first |
984 |
my $queue = delete $ns->{query_queue}; |
985 |
|
986 |
(shift @$queue)->[1]->($msg); |
987 |
|
988 |
push @{ $ns->{query_queue} }, @$queue; |
989 |
|
990 |
if (@{ $ns->{query_queue} } == @$queue) { |
991 |
if (@$queue) { |
992 |
$ns->send_packet ($ns->{query_queue}[0][0]); |
993 |
} else { |
994 |
$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; |
995 |
} |
996 |
} |
997 |
}, |
998 |
); |
999 |
|
1000 |
=item $client->coro (\&cb) |
1001 |
|
1002 |
Create a new coroutine, running the specified callback. The coroutine will |
1003 |
be automatically cancelled when the client gets destroyed (e.g. on logout, |
1004 |
or loss of connection). |
1005 |
|
1006 |
=cut |
1007 |
|
1008 |
sub cf::client::coro { |
1009 |
my ($self, $cb) = @_; |
1010 |
|
1011 |
my $coro; $coro = async { |
1012 |
eval { |
1013 |
$cb->(); |
1014 |
}; |
1015 |
warn $@ if $@; |
1016 |
}; |
1017 |
|
1018 |
$coro->on_destroy (sub { |
1019 |
delete $self->{_coro}{$coro+0}; |
1020 |
}); |
1021 |
|
1022 |
$self->{_coro}{$coro+0} = $coro; |
1023 |
|
1024 |
$coro |
1025 |
} |
1026 |
|
1027 |
cf::client->attach ( |
1028 |
on_destroy => sub { |
1029 |
my ($ns) = @_; |
1030 |
|
1031 |
$_->cancel for values %{ (delete $ns->{_coro}) || {} }; |
1032 |
}, |
1033 |
); |
1034 |
|
1035 |
=back |
1036 |
|
1037 |
|
1038 |
=head2 SAFE SCRIPTING |
1039 |
|
1040 |
Functions that provide a safe environment to compile and execute |
1041 |
snippets of perl code without them endangering the safety of the server |
1042 |
itself. Looping constructs, I/O operators and other built-in functionality |
1043 |
is not available in the safe scripting environment, and the number of |
1044 |
functions and methods that can be called is greatly reduced. |
1045 |
|
1046 |
=cut |
1047 |
|
1048 |
our $safe = new Safe "safe"; |
1049 |
our $safe_hole = new Safe::Hole; |
1050 |
|
1051 |
$SIG{FPE} = 'IGNORE'; |
1052 |
|
1053 |
$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
1054 |
|
1055 |
# here we export the classes and methods available to script code |
1056 |
|
1057 |
=pod |
1058 |
|
1059 |
The following fucntions and emthods are available within a safe environment: |
1060 |
|
1061 |
cf::object contr pay_amount pay_player map |
1062 |
cf::object::player player |
1063 |
cf::player peaceful |
1064 |
cf::map trigger |
1065 |
|
1066 |
=cut |
1067 |
|
1068 |
for ( |
1069 |
["cf::object" => qw(contr pay_amount pay_player map)], |
1070 |
["cf::object::player" => qw(player)], |
1071 |
["cf::player" => qw(peaceful)], |
1072 |
["cf::map" => qw(trigger)], |
1073 |
) { |
1074 |
no strict 'refs'; |
1075 |
my ($pkg, @funs) = @$_; |
1076 |
*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
1077 |
for @funs; |
1078 |
} |
1079 |
|
1080 |
=over 4 |
1081 |
|
1082 |
=item @retval = safe_eval $code, [var => value, ...] |
1083 |
|
1084 |
Compiled and executes the given perl code snippet. additional var/value |
1085 |
pairs result in temporary local (my) scalar variables of the given name |
1086 |
that are available in the code snippet. Example: |
1087 |
|
1088 |
my $five = safe_eval '$first + $second', first => 1, second => 4; |
1089 |
|
1090 |
=cut |
1091 |
|
1092 |
sub safe_eval($;@) { |
1093 |
my ($code, %vars) = @_; |
1094 |
|
1095 |
my $qcode = $code; |
1096 |
$qcode =~ s/"/‟/g; # not allowed in #line filenames |
1097 |
$qcode =~ s/\n/\\n/g; |
1098 |
|
1099 |
local $_; |
1100 |
local @safe::cf::_safe_eval_args = values %vars; |
1101 |
|
1102 |
my $eval = |
1103 |
"do {\n" |
1104 |
. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" |
1105 |
. "#line 0 \"{$qcode}\"\n" |
1106 |
. $code |
1107 |
. "\n}" |
1108 |
; |
1109 |
|
1110 |
sub_generation_inc; |
1111 |
my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); |
1112 |
sub_generation_inc; |
1113 |
|
1114 |
if ($@) { |
1115 |
warn "$@"; |
1116 |
warn "while executing safe code '$code'\n"; |
1117 |
warn "with arguments " . (join " ", %vars) . "\n"; |
1118 |
} |
1119 |
|
1120 |
wantarray ? @res : $res[0] |
1121 |
} |
1122 |
|
1123 |
=item cf::register_script_function $function => $cb |
1124 |
|
1125 |
Register a function that can be called from within map/npc scripts. The |
1126 |
function should be reasonably secure and should be put into a package name |
1127 |
like the extension. |
1128 |
|
1129 |
Example: register a function that gets called whenever a map script calls |
1130 |
C<rent::overview>, as used by the C<rent> extension. |
1131 |
|
1132 |
cf::register_script_function "rent::overview" => sub { |
1133 |
... |
1134 |
}; |
1135 |
|
1136 |
=cut |
1137 |
|
1138 |
sub register_script_function { |
1139 |
my ($fun, $cb) = @_; |
1140 |
|
1141 |
no strict 'refs'; |
1142 |
*{"safe::$fun"} = $safe_hole->wrap ($cb); |
1143 |
} |
1144 |
|
1145 |
=back |
1146 |
|
1147 |
=cut |
1148 |
|
1149 |
############################################################################# |
1150 |
|
1151 |
=head2 EXTENSION DATABASE SUPPORT |
1152 |
|
1153 |
Crossfire maintains a very simple database for extension use. It can |
1154 |
currently store anything that can be serialised using Storable, which |
1155 |
excludes objects. |
1156 |
|
1157 |
The parameter C<$family> should best start with the name of the extension |
1158 |
using it, it should be unique. |
1159 |
|
1160 |
=over 4 |
1161 |
|
1162 |
=item $hashref = cf::db_get $family |
1163 |
|
1164 |
Return a hashref for use by the extension C<$family>, which can be |
1165 |
modified. After modifications, you have to call C<cf::db_dirty> or |
1166 |
C<cf::db_sync>. |
1167 |
|
1168 |
=item $value = cf::db_get $family => $key |
1169 |
|
1170 |
Returns a single value from the database |
1171 |
|
1172 |
=item cf::db_put $family => $hashref |
1173 |
|
1174 |
Stores the given family hashref into the database. Updates are delayed, if |
1175 |
you want the data to be synced to disk immediately, use C<cf::db_sync>. |
1176 |
|
1177 |
=item cf::db_put $family => $key => $value |
1178 |
|
1179 |
Stores the given C<$value> in the family hash. Updates are delayed, if you |
1180 |
want the data to be synced to disk immediately, use C<cf::db_sync>. |
1181 |
|
1182 |
=item cf::db_dirty |
1183 |
|
1184 |
Marks the database as dirty, to be updated at a later time. |
1185 |
|
1186 |
=item cf::db_sync |
1187 |
|
1188 |
Immediately write the database to disk I<if it is dirty>. |
1189 |
|
1190 |
=cut |
1191 |
|
1192 |
our $DB; |
1193 |
|
1194 |
{ |
1195 |
my $path = cf::localdir . "/database.pst"; |
1196 |
|
1197 |
sub db_load() { |
1198 |
warn "loading database $path\n";#d# remove later |
1199 |
$DB = stat $path ? Storable::retrieve $path : { }; |
1200 |
} |
1201 |
|
1202 |
my $pid; |
1203 |
|
1204 |
sub db_save() { |
1205 |
warn "saving database $path\n";#d# remove later |
1206 |
waitpid $pid, 0 if $pid; |
1207 |
if (0 == ($pid = fork)) { |
1208 |
$DB->{_meta}{version} = 1; |
1209 |
Storable::nstore $DB, "$path~"; |
1210 |
rename "$path~", $path; |
1211 |
cf::_exit 0 if defined $pid; |
1212 |
} |
1213 |
} |
1214 |
|
1215 |
my $dirty; |
1216 |
|
1217 |
sub db_sync() { |
1218 |
db_save if $dirty; |
1219 |
undef $dirty; |
1220 |
} |
1221 |
|
1222 |
my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub { |
1223 |
db_sync; |
1224 |
}); |
1225 |
|
1226 |
sub db_dirty() { |
1227 |
$dirty = 1; |
1228 |
$idle->start; |
1229 |
} |
1230 |
|
1231 |
sub db_get($;$) { |
1232 |
@_ >= 2 |
1233 |
? $DB->{$_[0]}{$_[1]} |
1234 |
: ($DB->{$_[0]} ||= { }) |
1235 |
} |
1236 |
|
1237 |
sub db_put($$;$) { |
1238 |
if (@_ >= 3) { |
1239 |
$DB->{$_[0]}{$_[1]} = $_[2]; |
1240 |
} else { |
1241 |
$DB->{$_[0]} = $_[1]; |
1242 |
} |
1243 |
db_dirty; |
1244 |
} |
1245 |
|
1246 |
cf::global->attach ( |
1247 |
prio => 10000, |
1248 |
on_cleanup => sub { |
1249 |
db_sync; |
1250 |
}, |
1251 |
); |
1252 |
} |
1253 |
|
1254 |
############################################################################# |
1255 |
# the server's main() |
1256 |
|
1257 |
sub cfg_load { |
1258 |
open my $fh, "<:utf8", cf::confdir . "/config" |
1259 |
or return; |
1260 |
|
1261 |
local $/; |
1262 |
*CFG = YAML::Syck::Load <$fh>; |
1263 |
} |
1264 |
|
1265 |
sub main { |
1266 |
cfg_load; |
1267 |
db_load; |
1268 |
load_extensions; |
1269 |
Event::loop; |
1270 |
} |
1271 |
|
1272 |
############################################################################# |
1273 |
# initialisation |
1274 |
|
1275 |
sub _perl_reload() { |
1276 |
warn "reloading..."; |
1277 |
|
1278 |
eval { |
1279 |
local $FREEZE = 1; |
1280 |
|
1281 |
cf::emergency_save; |
1282 |
|
1283 |
# cancel all watchers |
1284 |
for (Event::all_watchers) { |
1285 |
$_->cancel if $_->data & WF_AUTOCANCEL; |
1286 |
} |
1287 |
|
1288 |
# cancel all extension coros |
1289 |
$_->cancel for values %EXT_CORO; |
1290 |
%EXT_CORO = (); |
1291 |
|
1292 |
# unload all extensions |
1293 |
for (@exts) { |
1294 |
warn "unloading <$_>"; |
1295 |
unload_extension $_; |
1296 |
} |
1297 |
|
1298 |
# unload all modules loaded from $LIBDIR |
1299 |
while (my ($k, $v) = each %INC) { |
1300 |
next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
1301 |
|
1302 |
warn "removing <$k>"; |
1303 |
delete $INC{$k}; |
1304 |
|
1305 |
$k =~ s/\.pm$//; |
1306 |
$k =~ s/\//::/g; |
1307 |
|
1308 |
if (my $cb = $k->can ("unload_module")) { |
1309 |
$cb->(); |
1310 |
} |
1311 |
|
1312 |
Symbol::delete_package $k; |
1313 |
} |
1314 |
|
1315 |
# sync database to disk |
1316 |
cf::db_sync; |
1317 |
IO::AIO::flush; |
1318 |
|
1319 |
# get rid of safe::, as good as possible |
1320 |
Symbol::delete_package "safe::$_" |
1321 |
for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); |
1322 |
|
1323 |
# remove register_script_function callbacks |
1324 |
# TODO |
1325 |
|
1326 |
# unload cf.pm "a bit" |
1327 |
delete $INC{"cf.pm"}; |
1328 |
|
1329 |
# don't, removes xs symbols, too, |
1330 |
# and global variables created in xs |
1331 |
#Symbol::delete_package __PACKAGE__; |
1332 |
|
1333 |
# reload cf.pm |
1334 |
warn "reloading cf.pm"; |
1335 |
require cf; |
1336 |
cf::_connect_to_perl; # nominally unnecessary, but cannot hurt |
1337 |
|
1338 |
# load config and database again |
1339 |
cf::cfg_load; |
1340 |
cf::db_load; |
1341 |
|
1342 |
# load extensions |
1343 |
warn "load extensions"; |
1344 |
cf::load_extensions; |
1345 |
|
1346 |
# reattach attachments to objects |
1347 |
warn "reattach"; |
1348 |
_global_reattach; |
1349 |
}; |
1350 |
warn $@ if $@; |
1351 |
|
1352 |
warn "reloaded"; |
1353 |
}; |
1354 |
|
1355 |
sub perl_reload() { |
1356 |
_perl_reload; |
1357 |
} |
1358 |
|
1359 |
register "<global>", __PACKAGE__; |
1360 |
|
1361 |
register_command "perl-reload" => sub { |
1362 |
my ($who, $arg) = @_; |
1363 |
|
1364 |
if ($who->flag (FLAG_WIZ)) { |
1365 |
$who->message ("reloading..."); |
1366 |
_perl_reload; |
1367 |
} |
1368 |
}; |
1369 |
|
1370 |
unshift @INC, $LIBDIR; |
1371 |
|
1372 |
$TICK_WATCHER = Event->timer ( |
1373 |
reentrant => 0, |
1374 |
prio => 0, |
1375 |
at => $NEXT_TICK || $TICK, |
1376 |
data => WF_AUTOCANCEL, |
1377 |
cb => sub { |
1378 |
unless ($FREEZE) { |
1379 |
cf::server_tick; # one server iteration |
1380 |
$RUNTIME += $TICK; |
1381 |
} |
1382 |
|
1383 |
$NEXT_TICK += $TICK; |
1384 |
|
1385 |
# if we are delayed by four ticks or more, skip them all |
1386 |
$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; |
1387 |
|
1388 |
$TICK_WATCHER->at ($NEXT_TICK); |
1389 |
$TICK_WATCHER->start; |
1390 |
}, |
1391 |
); |
1392 |
|
1393 |
IO::AIO::max_poll_time $TICK * 0.2; |
1394 |
|
1395 |
Event->io (fd => IO::AIO::poll_fileno, |
1396 |
poll => 'r', |
1397 |
prio => 5, |
1398 |
data => WF_AUTOCANCEL, |
1399 |
cb => \&IO::AIO::poll_cb); |
1400 |
|
1401 |
# we must not ever block the main coroutine |
1402 |
$Coro::idle = sub { |
1403 |
#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# |
1404 |
warn "FATAL: Coro::idle was called, major BUG\n"; |
1405 |
(Coro::unblock_sub { |
1406 |
Event::one_event; |
1407 |
})->(); |
1408 |
}; |
1409 |
|
1410 |
1 |
1411 |
|