[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.74 by root, Sun Oct 1 15:59:29 2006 UTC vs.
Revision 1.97 by root, Fri Dec 22 06:03:20 2006 UTC

…		…
1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18
		19	use IO::AIO;
10	use YAML::Syck ();	20	use YAML::Syck ();
11	use Time::HiRes;	21	use Time::HiRes;
12	use Event;	22
13	$Event::Eval = 1; # no idea why this is required, but it is	23	use Event; $Event::Eval = 1; # no idea why this is required, but it is
14		24
15	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
16	$YAML::Syck::ImplicitUnicode = 1;	26	$YAML::Syck::ImplicitUnicode = 1;
17		27
18	use strict;	28	$Coro::main->prio (Coro::PRIO_MIN);
		29
		30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		31
		32	our %COMMAND = ();
		33	our %COMMAND_TIME = ();
		34	our %EXTCMD = ();
19		35
20	_init_vars;	36	_init_vars;
21		37
22	our %COMMAND = ();
23	our @EVENT;	38	our @EVENT;
24	our $LIBDIR = maps_directory "perl";	39	our $LIBDIR = datadir . "/ext";
25		40
26	our $TICK = MAX_TIME * 1e-6;	41	our $TICK = MAX_TIME * 1e-6;
27	our $TICK_WATCHER;	42	our $TICK_WATCHER;
28	our $NEXT_TICK;	43	our $NEXT_TICK;
29		44
30	our %CFG;	45	our %CFG;
31		46
		47	our $UPTIME; $UPTIME \|\|= time;
		48
32	#############################################################################	49	#############################################################################
33		50
34	=head2 GLOBAL VARIABLES	51	=head2 GLOBAL VARIABLES
35		52
36	=over 4	53	=over 4
		54
		55	=item $cf::UPTIME
		56
		57	The timestamp of the server start (so not actually an uptime).
37		58
38	=item $cf::LIBDIR	59	=item $cf::LIBDIR
39		60
40	The perl library directory, where extensions and cf-specific modules can	61	The perl library directory, where extensions and cf-specific modules can
41	be found. It will be added to C<@INC> automatically.	62	be found. It will be added to C<@INC> automatically.
62	print STDERR "cfperl: $msg";	83	print STDERR "cfperl: $msg";
63	LOG llevError, "cfperl: $msg";	84	LOG llevError, "cfperl: $msg";
64	};	85	};
65	}	86	}
66		87
		88	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		89	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		90	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		91	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		92	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
67	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	93	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
68		94
69	# we bless all objects into (empty) derived classes to force a method lookup	95	# we bless all objects into (empty) derived classes to force a method lookup
70	# within the Safe compartment.	96	# within the Safe compartment.
71	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	97	for my $pkg (qw(
		98	cf::global
		99	cf::object cf::object::player
		100	cf::client cf::player
		101	cf::arch cf::living
		102	cf::map cf::party cf::region
		103	)) {
72	no strict 'refs';	104	no strict 'refs';
73	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	105	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
74	}	106	}
75		107
76	$Event::DIED = sub {	108	$Event::DIED = sub {
…		…
78	};	110	};
79		111
80	my %ext_pkg;	112	my %ext_pkg;
81	my @exts;	113	my @exts;
82	my @hook;	114	my @hook;
83	my %command;
84	my %extcmd;
85		115
86	=head2 UTILITY FUNCTIONS	116	=head2 UTILITY FUNCTIONS
87		117
88	=over 4	118	=over 4
89		119
…		…
117		147
118	=cut	148	=cut
119		149
120	#############################################################################	150	#############################################################################
121		151
122	=head2 EVENTS AND OBJECT ATTACHMENTS	152	=head2 ATTACHABLE OBJECTS
		153
		154	Many objects in crossfire are so-called attachable objects. That means you can
		155	attach callbacks/event handlers (a collection of which is called an "attachment")
		156	to it. All such attachable objects support the following methods.
		157
		158	In the following description, CLASS can be any of C<global>, C<object>
		159	C<player>, C<client> or C<map> (i.e. the attachable objects in
		160	crossfire+).
123		161
124	=over 4	162	=over 4
125		163
126	=item $object->attach ($attachment, key => $value...)
127
128	=item $object->detach ($attachment)
129
130	Attach/detach a pre-registered attachment to an object.
131
132	=item $player->attach ($attachment, key => $value...)
133
134	=item $player->detach ($attachment)
135
136	Attach/detach a pre-registered attachment to a player.
137
138	=item $map->attach ($attachment, key => $value...)	164	=item $attachable->attach ($attachment, key => $value...)
139		165
140	=item $map->detach ($attachment)	166	=item $attachable->detach ($attachment)
141		167
142	Attach/detach a pre-registered attachment to a map.	168	Attach/detach a pre-registered attachment to a specific object and give it
		169	the specified key/value pairs as arguments.
143		170
144	=item $bool = $object->attached ($name)	171	Example, attach a minesweeper attachment to the given object, making it a
		172	10x10 minesweeper game:
145		173
146	=item $bool = $player->attached ($name)	174	$obj->attach (minesweeper => width => 10, height => 10);
147		175
148	=item $bool = $map->attached ($name)	176	=item $bool = $attachable->attached ($name)
149		177
150	Checks wether the named attachment is currently attached to the object.	178	Checks wether the named attachment is currently attached to the object.
151		179
152	=item cf::attach_global ...	180	=item cf::CLASS->attach ...
153		181
154	Attach handlers for global events.	182	=item cf::CLASS->detach ...
155		183
156	This and all following C<attach_*>-functions expect any number of the	184	Define an anonymous attachment and attach it to all objects of the given
157	following handler/hook descriptions:	185	CLASS. See the next function for an explanation of its arguments.
		186
		187	You can attach to global events by using the C<cf::global> class.
		188
		189	Example, log all player logins:
		190
		191	cf::player->attach (
		192	on_login => sub {
		193	my ($pl) = @_;
		194	...
		195	},
		196	);
		197
		198	Example, attach to the jeweler skill:
		199
		200	cf::object->attach (
		201	type => cf::SKILL,
		202	subtype => cf::SK_JEWELER,
		203	on_use_skill => sub {
		204	my ($sk, $ob, $part, $dir, $msg) = @_;
		205	...
		206	},
		207	);
		208
		209	=item cf::CLASS::attachment $name, ...
		210
		211	Register an attachment by C<$name> through which attachable objects of the
		212	given CLASS can refer to this attachment.
		213
		214	Some classes such as crossfire maps and objects can specify attachments
		215	that are attached at load/instantiate time, thus the need for a name.
		216
		217	These calls expect any number of the following handler/hook descriptions:
158		218
159	=over 4	219	=over 4
160		220
161	=item prio => $number	221	=item prio => $number
162		222
…		…
164	by another C<prio> setting). Lower priority handlers get executed	224	by another C<prio> setting). Lower priority handlers get executed
165	earlier. The default priority is C<0>, and many built-in handlers are	225	earlier. The default priority is C<0>, and many built-in handlers are
166	registered at priority C<-1000>, so lower priorities should not be used	226	registered at priority C<-1000>, so lower priorities should not be used
167	unless you know what you are doing.	227	unless you know what you are doing.
168		228
		229	=item type => $type
		230
		231	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		232	given type of objects only (the additional parameter C<subtype> can be
		233	used to further limit to the given subtype).
		234
169	=item on_I<event> => \&cb	235	=item on_I<event> => \&cb
170		236
171	Call the given code reference whenever the named event happens (event is	237	Call the given code reference whenever the named event happens (event is
172	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	238	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
173	handlers are recognised generally depends on the type of object these	239	handlers are recognised generally depends on the type of object these
…		…
182	package and register them. Only handlers for eevents supported by the	248	package and register them. Only handlers for eevents supported by the
183	object/class are recognised.	249	object/class are recognised.
184		250
185	=back	251	=back
186		252
187	=item cf::attach_to_type $object_type, $subtype, ...	253	Example, define an attachment called "sockpuppet" that calls the given
		254	event handler when a monster attacks:
188		255
189	Attach handlers for a specific object type (e.g. TRANSPORT) and	256	cf::object::attachment sockpuppet =>
190	subtype. If C<$subtype> is zero or undef, matches all objects of the given	257	on_skill_attack => sub {
191	type.	258	my ($self, $victim) = @_;
192		259	...
193	=item cf::attach_to_objects ...
194
195	Attach handlers to all objects. Do not use this except for debugging or
196	very rare events, as handlers are (obviously) called for I<all> objects in
197	the game.
198
199	=item cf::attach_to_players ...
200
201	Attach handlers to all players.
202
203	=item cf::attach_to_maps ...
204
205	Attach handlers to all maps.
206
207	=item cf:register_attachment $name, ...
208
209	Register an attachment by name through which objects can refer to this
210	attachment.
211
212	=item cf:register_player_attachment $name, ...
213
214	Register an attachment by name through which players can refer to this
215	attachment.
216
217	=item cf:register_map_attachment $name, ...
218
219	Register an attachment by name through which maps can refer to this
220	attachment.
221
222	=cut
223
224	# the following variables are defined in .xs and must not be re-created
225	our @CB_GLOBAL = (); # registry for all global events
226	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
227	our @CB_PLAYER = ();
228	our @CB_TYPE = (); # registry for type (cf-object class) based events
229	our @CB_MAP = ();
230
231	my %attachment;
232
233	sub _attach_cb($\%$$$) {
234	my ($registry, $undo, $event, $prio, $cb) = @_;
235
236	use sort 'stable';
237
238	$cb = [$prio, $cb];
239
240	@{$registry->[$event]} = sort
241	{ $a->[0] cmp $b->[0] }
242	@{$registry->[$event] \|\| []}, $cb;
243
244	push @{$undo->{cb}}, [$event, $cb];
245	}
246
247	# attach handles attaching event callbacks
248	# the only thing the caller has to do is pass the correct
249	# registry (== where the callback attaches to).
250	sub _attach(\@$@) {
251	my ($registry, $klass, @arg) = @_;
252
253	my $prio = 0;
254
255	my %undo = (
256	registry => $registry,
257	cb => [],
258	);
259
260	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
261
262	while (@arg) {
263	my $type = shift @arg;
264
265	if ($type eq "prio") {
266	$prio = shift @arg;
267
268	} elsif ($type eq "package") {
269	my $pkg = shift @arg;
270
271	while (my ($name, $id) = each %cb_id) {
272	if (my $cb = $pkg->can ($name)) {
273	_attach_cb $registry, %undo, $id, $prio, $cb;
274	}
275	}	260	}
276
277	} elsif (exists $cb_id{$type}) {
278	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
279
280	} elsif (ref $type) {
281	warn "attaching objects not supported, ignoring.\n";
282
283	} else {
284	shift @arg;
285	warn "attach argument '$type' not supported, ignoring.\n";
286	}
287	}
288
289	\%undo
290	}
291
292	sub _attach_attachment {
293	my ($obj, $name, %arg) = @_;
294
295	return if exists $obj->{_attachment}{$name};
296
297	my $res;
298
299	if (my $attach = $attachment{$name}) {
300	my $registry = $obj->registry;
301
302	for (@$attach) {
303	my ($klass, @attach) = @$_;
304	$res = _attach @$registry, $klass, @attach;
305	}
306
307	$obj->{$name} = \%arg;
308	} else {
309	warn "object uses attachment '$name' that is not available, postponing.\n";
310	}
311
312	$obj->{_attachment}{$name} = undef;
313
314	$res->{attachment} = $name;
315	$res
316	}
317
318	*cf::object::attach =
319	*cf::player::attach =
320	*cf::map::attach = sub {
321	my ($obj, $name, %arg) = @_;
322
323	_attach_attachment $obj, $name, %arg;
324	};
325
326	# all those should be optimised
327	*cf::object::detach =
328	*cf::player::detach =
329	*cf::map::detach = sub {
330	my ($obj, $name) = @_;
331
332	delete $obj->{_attachment}{$name};
333	reattach ($obj);
334	};
335
336	*cf::object::attached =
337	*cf::player::attached =
338	*cf::map::attached = sub {
339	my ($obj, $name) = @_;
340
341	exists $obj->{_attachment}{$name}
342	};
343
344	sub attach_global {
345	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
346	}
347
348	sub attach_to_type {
349	my $type = shift;
350	my $subtype = shift;
351
352	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
353	}
354
355	sub attach_to_objects {
356	_attach @CB_OBJECT, KLASS_OBJECT, @_
357	}
358
359	sub attach_to_players {
360	_attach @CB_PLAYER, KLASS_PLAYER, @_
361	}
362
363	sub attach_to_maps {
364	_attach @CB_MAP, KLASS_MAP, @_
365	}
366
367	sub register_attachment {
368	my $name = shift;
369
370	$attachment{$name} = [[KLASS_OBJECT, @_]];
371	}
372
373	sub register_player_attachment {
374	my $name = shift;
375
376	$attachment{$name} = [[KLASS_PLAYER, @_]];
377	}
378
379	sub register_map_attachment {
380	my $name = shift;
381
382	$attachment{$name} = [[KLASS_MAP, @_]];
383	}
384
385	our $override;
386	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
387
388	sub override {
389	$override = 1;
390	@invoke_results = ();
391	}
392
393	sub do_invoke {
394	my $event = shift;
395	my $callbacks = shift;
396
397	@invoke_results = ();
398
399	local $override;
400
401	for (@$callbacks) {
402	eval { &{$_->[1]} };
403
404	if ($@) {
405	warn "$@";
406	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
407	override;
408	}
409
410	return 1 if $override;
411	}
412
413	0	261	}
414	}
415		262
416	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	263	=item $attachable->valid
417
418	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
419
420	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
421
422	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
423
424	Generate a global/object/player/map-specific event with the given arguments.
425
426	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
427	removed in future versions), and there is no public API to access override
428	results (if you must, access C<@cf::invoke_results> directly).
429
430	=back
431
432	=cut
433
434	#############################################################################
435
436	=head2 METHODS VALID FOR ALL CORE OBJECTS
437
438	=over 4
439
440	=item $object->valid, $player->valid, $map->valid
441		264
442	Just because you have a perl object does not mean that the corresponding	265	Just because you have a perl object does not mean that the corresponding
443	C-level object still exists. If you try to access an object that has no	266	C-level object still exists. If you try to access an object that has no
444	valid C counterpart anymore you get an exception at runtime. This method	267	valid C counterpart anymore you get an exception at runtime. This method
445	can be used to test for existence of the C object part without causing an	268	can be used to test for existence of the C object part without causing an
446	exception.	269	exception.
447		270
		271	=cut
		272
		273	# the following variables are defined in .xs and must not be re-created
		274	our @CB_GLOBAL = (); # registry for all global events
		275	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		276	our @CB_PLAYER = ();
		277	our @CB_CLIENT = ();
		278	our @CB_TYPE = (); # registry for type (cf-object class) based events
		279	our @CB_MAP = ();
		280
		281	my %attachment;
		282
		283	sub _attach_cb($$$$) {
		284	my ($registry, $event, $prio, $cb) = @_;
		285
		286	use sort 'stable';
		287
		288	$cb = [$prio, $cb];
		289
		290	@{$registry->[$event]} = sort
		291	{ $a->[0] cmp $b->[0] }
		292	@{$registry->[$event] \|\| []}, $cb;
		293	}
		294
		295	# attach handles attaching event callbacks
		296	# the only thing the caller has to do is pass the correct
		297	# registry (== where the callback attaches to).
		298	sub _attach {
		299	my ($registry, $klass, @arg) = @_;
		300
		301	my $object_type;
		302	my $prio = 0;
		303	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		304
		305	while (@arg) {
		306	my $type = shift @arg;
		307
		308	if ($type eq "prio") {
		309	$prio = shift @arg;
		310
		311	} elsif ($type eq "type") {
		312	$object_type = shift @arg;
		313	$registry = $CB_TYPE[$object_type] \|\|= [];
		314
		315	} elsif ($type eq "subtype") {
		316	defined $object_type or Carp::croak "subtype specified without type";
		317	my $object_subtype = shift @arg;
		318	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];
		319
		320	} elsif ($type eq "package") {
		321	my $pkg = shift @arg;
		322
		323	while (my ($name, $id) = each %cb_id) {
		324	if (my $cb = $pkg->can ($name)) {
		325	_attach_cb $registry, $id, $prio, $cb;
		326	}
		327	}
		328
		329	} elsif (exists $cb_id{$type}) {
		330	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		331
		332	} elsif (ref $type) {
		333	warn "attaching objects not supported, ignoring.\n";
		334
		335	} else {
		336	shift @arg;
		337	warn "attach argument '$type' not supported, ignoring.\n";
		338	}
		339	}
		340	}
		341
		342	sub _object_attach {
		343	my ($obj, $name, %arg) = @_;
		344
		345	return if exists $obj->{_attachment}{$name};
		346
		347	if (my $attach = $attachment{$name}) {
		348	my $registry = $obj->registry;
		349
		350	for (@$attach) {
		351	my ($klass, @attach) = @$_;
		352	_attach $registry, $klass, @attach;
		353	}
		354
		355	$obj->{$name} = \%arg;
		356	} else {
		357	warn "object uses attachment '$name' that is not available, postponing.\n";
		358	}
		359
		360	$obj->{_attachment}{$name} = undef;
		361	}
		362
		363	sub cf::attachable::attach {
		364	if (ref $_[0]) {
		365	_object_attach @_;
		366	} else {
		367	_attach shift->_attach_registry, @_;
		368	}
		369	};
		370
		371	# all those should be optimised
		372	sub cf::attachable::detach {
		373	my ($obj, $name) = @_;
		374
		375	if (ref $obj) {
		376	delete $obj->{_attachment}{$name};
		377	reattach ($obj);
		378	} else {
		379	Carp::croak "cannot, currently, detach class attachments";
		380	}
		381	};
		382
		383	sub cf::attachable::attached {
		384	my ($obj, $name) = @_;
		385
		386	exists $obj->{_attachment}{$name}
		387	}
		388
		389	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {
		390	eval "#line " . __LINE__ . " 'cf.pm'
		391	sub cf::\L$klass\E::_attach_registry {
		392	(\\\@CB_$klass, KLASS_$klass)
		393	}
		394
		395	sub cf::\L$klass\E::attachment {
		396	my \$name = shift;
		397
		398	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		399	}
		400	";
		401	die if $@;
		402	}
		403
		404	our $override;
		405	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		406
		407	sub override {
		408	$override = 1;
		409	@invoke_results = ();
		410	}
		411
		412	sub do_invoke {
		413	my $event = shift;
		414	my $callbacks = shift;
		415
		416	@invoke_results = ();
		417
		418	local $override;
		419
		420	for (@$callbacks) {
		421	eval { &{$_->[1]} };
		422
		423	if ($@) {
		424	warn "$@";
		425	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		426	override;
		427	}
		428
		429	return 1 if $override;
		430	}
		431
		432	0
		433	}
		434
		435	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		436
		437	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		438
		439	Generate an object-specific event with the given arguments.
		440
		441	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		442	removed in future versions), and there is no public API to access override
		443	results (if you must, access C<@cf::invoke_results> directly).
		444
448	=back	445	=back
449		446
450	=cut	447	=cut
451
452	*cf::object::valid =
453	*cf::player::valid =
454	*cf::map::valid = \&cf::_valid;
455		448
456	#############################################################################	449	#############################################################################
457	# object support	450	# object support
458		451
459	sub instantiate {	452	sub instantiate {
…		…
479		472
480	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {	473	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {
481	if (my $attach = $attachment{$name}) {	474	if (my $attach = $attachment{$name}) {
482	for (@$attach) {	475	for (@$attach) {
483	my ($klass, @attach) = @$_;	476	my ($klass, @attach) = @$_;
484	_attach @$registry, $klass, @attach;	477	_attach $registry, $klass, @attach;
485	}	478	}
486	} else {	479	} else {
487	warn "object uses attachment '$name' that is not available, postponing.\n";	480	warn "object uses attachment '$name' that is not available, postponing.\n";
488	}	481	}
489	}	482	}
…		…
518	unlink $filename;	511	unlink $filename;
519	unlink "$filename.pst";	512	unlink "$filename.pst";
520	}	513	}
521	}	514	}
522		515
		516	sub object_freezer_as_string {
		517	my ($rdata, $objs) = @_;
		518
		519	use Data::Dumper;
		520
		521	$$rdata . Dumper $objs
		522	}
		523
523	sub object_thawer_load {	524	sub object_thawer_load {
524	my ($filename) = @_;	525	my ($filename) = @_;
525		526
526	local $/;	527	local $/;
527		528
…		…
537	}	538	}
538		539
539	()	540	()
540	}	541	}
541		542
542	attach_to_objects	543	cf::object->attach (
543	prio => -1000000,	544	prio => -1000000,
544	on_clone => sub {	545	on_clone => sub {
545	my ($src, $dst) = @_;	546	my ($src, $dst) = @_;
546		547
547	@{$dst->registry} = @{$src->registry};	548	@{$dst->registry} = @{$src->registry};
…		…
549	%$dst = %$src;	550	%$dst = %$src;
550		551
551	%{$dst->{_attachment}} = %{$src->{_attachment}}	552	%{$dst->{_attachment}} = %{$src->{_attachment}}
552	if exists $src->{_attachment};	553	if exists $src->{_attachment};
553	},	554	},
554	;	555	);
555		556
556	#############################################################################	557	#############################################################################
557	# old plug-in events	558	# command handling &c
558		559
559	sub inject_event {	560	=item cf::register_command $name => \&callback($ob,$args);
560	my $extension = shift;
561	my $event_code = shift;
562		561
563	my $cb = $hook[$event_code]{$extension}	562	Register a callback for execution when the client sends the user command
564	or return;	563	$name.
565		564
566	&$cb	565	=cut
567	}
568
569	sub inject_global_event {
570	my $event = shift;
571
572	my $cb = $hook[$event]
573	or return;
574
575	List::Util::max map &$_, values %$cb
576	}
577
578	sub inject_command {
579	my ($name, $obj, $params) = @_;
580
581	for my $cmd (@{ $command{$name} }) {
582	$cmd->[1]->($obj, $params);
583	}
584
585	-1
586	}
587		566
588	sub register_command {	567	sub register_command {
589	my ($name, $time, $cb) = @_;	568	my ($name, $cb) = @_;
590		569
591	my $caller = caller;	570	my $caller = caller;
592	#warn "registering command '$name/$time' to '$caller'";	571	#warn "registering command '$name/$time' to '$caller'";
593		572
594	push @{ $command{$name} }, [$time, $cb, $caller];	573	push @{ $COMMAND{$name} }, [$caller, $cb];
595	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
596	}	574	}
		575
		576	=item cf::register_extcmd $name => \&callback($pl,$packet);
		577
		578	Register a callbackf ro execution when the client sends an extcmd packet.
		579
		580	If the callback returns something, it is sent back as if reply was being
		581	called.
		582
		583	=cut
597		584
598	sub register_extcmd {	585	sub register_extcmd {
599	my ($name, $cb) = @_;	586	my ($name, $cb) = @_;
600		587
601	my $caller = caller;	588	my $caller = caller;
602	#warn "registering extcmd '$name' to '$caller'";	589	#warn "registering extcmd '$name' to '$caller'";
603		590
604	$extcmd{$name} = [$cb, $caller];	591	$EXTCMD{$name} = [$cb, $caller];
605	}	592	}
		593
		594	cf::player->attach (
		595	on_command => sub {
		596	my ($pl, $name, $params) = @_;
		597
		598	my $cb = $COMMAND{$name}
		599	or return;
		600
		601	for my $cmd (@$cb) {
		602	$cmd->[1]->($pl->ob, $params);
		603	}
		604
		605	cf::override;
		606	},
		607	on_extcmd => sub {
		608	my ($pl, $buf) = @_;
		609
		610	my $msg = eval { from_json $buf };
		611
		612	if (ref $msg) {
		613	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		614	if (my %reply = $cb->[0]->($pl, $msg)) {
		615	$pl->ext_reply ($msg->{msgid}, %reply);
		616	}
		617	}
		618	} else {
		619	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		620	}
		621
		622	cf::override;
		623	},
		624	);
606		625
607	sub register {	626	sub register {
608	my ($base, $pkg) = @_;	627	my ($base, $pkg) = @_;
609		628
610	#TODO	629	#TODO
…		…
629	. "#line 1 \"$path\"\n{\n"	648	. "#line 1 \"$path\"\n{\n"
630	. (do { local $/; <$fh> })	649	. (do { local $/; <$fh> })
631	. "\n};\n1";	650	. "\n};\n1";
632		651
633	eval $source	652	eval $source
634	or die "$path: $@";	653	or die $@ ? "$path: $@\n"
		654	: "extension disabled.\n";
635		655
636	push @exts, $pkg;	656	push @exts, $pkg;
637	$ext_pkg{$base} = $pkg;	657	$ext_pkg{$base} = $pkg;
638		658
639	# no strict 'refs';	659	# no strict 'refs';
…		…
652	# for my $idx (0 .. $#PLUGIN_EVENT) {	672	# for my $idx (0 .. $#PLUGIN_EVENT) {
653	# delete $hook[$idx]{$pkg};	673	# delete $hook[$idx]{$pkg};
654	# }	674	# }
655		675
656	# remove commands	676	# remove commands
657	for my $name (keys %command) {	677	for my $name (keys %COMMAND) {
658	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	678	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
659		679
660	if (@cb) {	680	if (@cb) {
661	$command{$name} = \@cb;	681	$COMMAND{$name} = \@cb;
662	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
663	} else {	682	} else {
664	delete $command{$name};
665	delete $COMMAND{"$name\000"};	683	delete $COMMAND{$name};
666	}	684	}
667	}	685	}
668		686
669	# remove extcmds	687	# remove extcmds
670	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	688	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
671	delete $extcmd{$name};	689	delete $EXTCMD{$name};
672	}	690	}
673		691
674	if (my $cb = $pkg->can ("unload")) {	692	if (my $cb = $pkg->can ("unload")) {
675	eval {	693	eval {
676	$cb->($pkg);	694	$cb->($pkg);
…		…
680		698
681	Symbol::delete_package $pkg;	699	Symbol::delete_package $pkg;
682	}	700	}
683		701
684	sub load_extensions {	702	sub load_extensions {
685	my $LIBDIR = maps_directory "perl";
686
687	for my $ext (<$LIBDIR/*.ext>) {	703	for my $ext (<$LIBDIR/*.ext>) {
688	next unless -r $ext;	704	next unless -r $ext;
689	eval {	705	eval {
690	load_extension $ext;	706	load_extension $ext;
691	1	707	1
692	} or warn "$ext not loaded: $@";	708	} or warn "$ext not loaded: $@";
693	}	709	}
694	}	710	}
695		711
696	#############################################################################	712	#############################################################################
697	# extcmd framework, basically convert ext <msg>
698	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
699
700	attach_to_players
701	on_extcmd => sub {
702	my ($pl, $buf) = @_;
703
704	my $msg = eval { from_json $buf };
705
706	if (ref $msg) {
707	if (my $cb = $extcmd{$msg->{msgtype}}) {
708	if (my %reply = $cb->[0]->($pl, $msg)) {
709	$pl->ext_reply ($msg->{msgid}, %reply);
710	}
711	}
712	} else {
713	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
714	}
715
716	cf::override;
717	},
718	;
719
720	#############################################################################
721	# load/save/clean perl data associated with a map	713	# load/save/clean perl data associated with a map
722		714
723	*cf::mapsupport::on_clean = sub {	715	*cf::mapsupport::on_clean = sub {
724	my ($map) = @_;	716	my ($map) = @_;
725		717
…		…
727	defined $path or return;	719	defined $path or return;
728		720
729	unlink "$path.pst";	721	unlink "$path.pst";
730	};	722	};
731		723
732	attach_to_maps prio => -10000, package => cf::mapsupport::;	724	cf::map->attach (prio => -10000, package => cf::mapsupport::);
733		725
734	#############################################################################	726	#############################################################################
735	# load/save perl data associated with player->ob objects	727	# load/save perl data associated with player->ob objects
736		728
737	sub all_objects(@) {	729	sub all_objects(@) {
738	@_, map all_objects ($_->inv), @_	730	@_, map all_objects ($_->inv), @_
739	}	731	}
740		732
741	# TODO: compatibility cruft, remove when no longer needed	733	# TODO: compatibility cruft, remove when no longer needed
742	attach_to_players	734	cf::player->attach (
743	on_load => sub {	735	on_load => sub {
744	my ($pl, $path) = @_;	736	my ($pl, $path) = @_;
745		737
746	for my $o (all_objects $pl->ob) {	738	for my $o (all_objects $pl->ob) {
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {	739	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
749		741
750	%$o = %{ Storable::thaw pack "H*", $value };	742	%$o = %{ Storable::thaw pack "H*", $value };
751	}	743	}
752	}	744	}
753	},	745	},
754	;	746	);
755		747
756	#############################################################################	748	#############################################################################
757		749
758	=head2 CORE EXTENSIONS	750	=head2 CORE EXTENSIONS
759		751
760	Functions and methods that extend core crossfire objects.	752	Functions and methods that extend core crossfire objects.
		753
		754	=head3 cf::player
761		755
762	=over 4	756	=over 4
763		757
764	=item cf::player::exists $login	758	=item cf::player::exists $login
765		759
…		…
770	sub cf::player::exists($) {	764	sub cf::player::exists($) {
771	cf::player::find $_[0]	765	cf::player::find $_[0]
772	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	766	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
773	}	767	}
774		768
		769	=item $player->ext_reply ($msgid, $msgtype, %msg)
		770
		771	Sends an ext reply to the player.
		772
		773	=cut
		774
		775	sub cf::player::ext_reply($$$%) {
		776	my ($self, $id, %msg) = @_;
		777
		778	$msg{msgid} = $id;
		779
		780	$self->send ("ext " . to_json \%msg);
		781	}
		782
		783	=back
		784
		785	=head3 cf::object::player
		786
		787	=over 4
		788
775	=item $player->reply ($npc, $msg[, $flags])	789	=item $player_object->reply ($npc, $msg[, $flags])
776		790
777	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
778	can be C<undef>. Does the right thing when the player is currently in a	792	can be C<undef>. Does the right thing when the player is currently in a
779	dialogue with the given NPC character.	793	dialogue with the given NPC character.
780		794
781	=cut	795	=cut
782		796
783	# rough implementation of a future "reply" method that works	797	# rough implementation of a future "reply" method that works
784	# with dialog boxes.	798	# with dialog boxes.
		799	#TODO: the first argument must go, split into a $npc->reply_to ( method
785	sub cf::object::player::reply($$$;$) {	800	sub cf::object::player::reply($$$;$) {
786	my ($self, $npc, $msg, $flags) = @_;	801	my ($self, $npc, $msg, $flags) = @_;
787		802
788	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	803	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
789		804
…		…
793	$msg = $npc->name . " says: $msg" if $npc;	808	$msg = $npc->name . " says: $msg" if $npc;
794	$self->message ($msg, $flags);	809	$self->message ($msg, $flags);
795	}	810	}
796	}	811	}
797		812
798	=item $player->ext_reply ($msgid, $msgtype, %msg)	813	=item $player_object->may ("access")
799		814
800	Sends an ext reply to the player.	815	Returns wether the given player is authorized to access resource "access"
		816	(e.g. "command_wizcast").
801		817
802	=cut	818	=cut
803		819
804	sub cf::player::ext_reply($$$%) {	820	sub cf::object::player::may {
		821	my ($self, $access) = @_;
		822
		823	$self->flag (cf::FLAG_WIZ) \|\|
		824	(ref $cf::CFG{"may_$access"}
		825	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		826	: $cf::CFG{"may_$access"})
		827	}
		828
		829	=head3 cf::client
		830
		831	=over 4
		832
		833	=item $client->send_drawinfo ($text, $flags)
		834
		835	Sends a drawinfo packet to the client. Circumvents output buffering so
		836	should not be used under normal circumstances.
		837
		838	=cut
		839
		840	sub cf::client::send_drawinfo {
		841	my ($self, $text, $flags) = @_;
		842
		843	utf8::encode $text;
		844	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		845	}
		846
		847
		848	=item $success = $client->query ($flags, "text", \&cb)
		849
		850	Queues a query to the client, calling the given callback with
		851	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		852	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		853
		854	Queries can fail, so check the return code. Or don't, as queries will become
		855	reliable at some point in the future.
		856
		857	=cut
		858
		859	sub cf::client::query {
		860	my ($self, $flags, $text, $cb) = @_;
		861
		862	return unless $self->state == ST_PLAYING
		863	\|\| $self->state == ST_SETUP
		864	\|\| $self->state == ST_CUSTOM;
		865
		866	$self->state (ST_CUSTOM);
		867
		868	utf8::encode $text;
		869	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		870
		871	$self->send_packet ($self->{query_queue}[0][0])
		872	if @{ $self->{query_queue} } == 1;
		873	}
		874
		875	cf::client->attach (
		876	on_reply => sub {
		877	my ($ns, $msg) = @_;
		878
		879	# this weird shuffling is so that direct followup queries
		880	# get handled first
		881	my $queue = delete $ns->{query_queue};
		882
		883	(shift @$queue)->[1]->($msg);
		884
		885	push @{ $ns->{query_queue} }, @$queue;
		886
		887	if (@{ $ns->{query_queue} } == @$queue) {
		888	if (@$queue) {
		889	$ns->send_packet ($ns->{query_queue}[0][0]);
		890	} else {
		891	$ns->state (ST_PLAYING);
		892	}
		893	}
		894	},
		895	);
		896
		897	=item $client->coro (\&cb)
		898
		899	Create a new coroutine, running the specified callback. The coroutine will
		900	be automatically cancelled when the client gets destroyed (e.g. on logout,
		901	or loss of connection).
		902
		903	=cut
		904
		905	sub cf::client::coro {
805	my ($self, $id, %msg) = @_;	906	my ($self, $cb) = @_;
806		907
807	$msg{msgid} = $id;	908	my $coro; $coro = async {
		909	eval {
		910	$cb->();
		911	};
		912	warn $@ if $@;
		913	delete $self->{_coro}{$coro+0};
		914	};
808		915
809	$self->send ("ext " . to_json \%msg);	916	$self->{_coro}{$coro+0} = $coro;
810	}	917	}
		918
		919	cf::client->attach (
		920	on_destroy => sub {
		921	my ($ns) = @_;
		922
		923	$_->cancel for values %{ (delete $ns->{_coro}) \|\| {} };
		924	},
		925	);
811		926
812	=back	927	=back
813		928
814	=cut
815
816	#############################################################################
817		929
818	=head2 SAFE SCRIPTING	930	=head2 SAFE SCRIPTING
819		931
820	Functions that provide a safe environment to compile and execute	932	Functions that provide a safe environment to compile and execute
821	snippets of perl code without them endangering the safety of the server	933	snippets of perl code without them endangering the safety of the server
822	itself. Looping constructs, I/O operators and other built-in functionality	934	itself. Looping constructs, I/O operators and other built-in functionality
823	is not available in the safe scripting environment, and the number of	935	is not available in the safe scripting environment, and the number of
824	functions and methods that cna be called is greatly reduced.	936	functions and methods that can be called is greatly reduced.
825		937
826	=cut	938	=cut
827		939
828	our $safe = new Safe "safe";	940	our $safe = new Safe "safe";
829	our $safe_hole = new Safe::Hole;	941	our $safe_hole = new Safe::Hole;
…		…
836		948
837	=pod	949	=pod
838		950
839	The following fucntions and emthods are available within a safe environment:	951	The following fucntions and emthods are available within a safe environment:
840		952
841	cf::object contr pay_amount pay_player	953	cf::object contr pay_amount pay_player map
842	cf::object::player player	954	cf::object::player player
843	cf::player peaceful	955	cf::player peaceful
		956	cf::map trigger
844		957
845	=cut	958	=cut
846		959
847	for (	960	for (
848	["cf::object" => qw(contr pay_amount pay_player)],	961	["cf::object" => qw(contr pay_amount pay_player map)],
849	["cf::object::player" => qw(player)],	962	["cf::object::player" => qw(player)],
850	["cf::player" => qw(peaceful)],	963	["cf::player" => qw(peaceful)],
		964	["cf::map" => qw(trigger)],
851	) {	965	) {
852	no strict 'refs';	966	no strict 'refs';
853	my ($pkg, @funs) = @$_;	967	my ($pkg, @funs) = @$_;
854	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	968	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
855	for @funs;	969	for @funs;
…		…
965		1079
966	Immediately write the database to disk I<if it is dirty>.	1080	Immediately write the database to disk I<if it is dirty>.
967		1081
968	=cut	1082	=cut
969		1083
		1084	our $DB;
		1085
970	{	1086	{
971	my $db;
972	my $path = cf::localdir . "/database.pst";	1087	my $path = cf::localdir . "/database.pst";
973		1088
974	sub db_load() {	1089	sub db_load() {
975	warn "loading database $path\n";#d# remove later	1090	warn "loading database $path\n";#d# remove later
976	$db = stat $path ? Storable::retrieve $path : { };	1091	$DB = stat $path ? Storable::retrieve $path : { };
977	}	1092	}
978		1093
979	my $pid;	1094	my $pid;
980		1095
981	sub db_save() {	1096	sub db_save() {
982	warn "saving database $path\n";#d# remove later	1097	warn "saving database $path\n";#d# remove later
983	waitpid $pid, 0 if $pid;	1098	waitpid $pid, 0 if $pid;
984	if (0 == ($pid = fork)) {	1099	if (0 == ($pid = fork)) {
985	$db->{_meta}{version} = 1;	1100	$DB->{_meta}{version} = 1;
986	Storable::nstore $db, "$path~";	1101	Storable::nstore $DB, "$path~";
987	rename "$path~", $path;	1102	rename "$path~", $path;
988	cf::_exit 0 if defined $pid;	1103	cf::_exit 0 if defined $pid;
989	}	1104	}
990	}	1105	}
991		1106
…		…
994	sub db_sync() {	1109	sub db_sync() {
995	db_save if $dirty;	1110	db_save if $dirty;
996	undef $dirty;	1111	undef $dirty;
997	}	1112	}
998		1113
999	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1114	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1000	db_sync;	1115	db_sync;
1001	});	1116	});
1002		1117
1003	sub db_dirty() {	1118	sub db_dirty() {
1004	$dirty = 1;	1119	$dirty = 1;
1005	$idle->start;	1120	$idle->start;
1006	}	1121	}
1007		1122
1008	sub db_get($;$) {	1123	sub db_get($;$) {
1009	@_ >= 2	1124	@_ >= 2
1010	? $db->{$_[0]}{$_[1]}	1125	? $DB->{$_[0]}{$_[1]}
1011	: ($db->{$_[0]} \|\|= { })	1126	: ($DB->{$_[0]} \|\|= { })
1012	}	1127	}
1013		1128
1014	sub db_put($$;$) {	1129	sub db_put($$;$) {
1015	if (@_ >= 3) {	1130	if (@_ >= 3) {
1016	$db->{$_[0]}{$_[1]} = $_[2];	1131	$DB->{$_[0]}{$_[1]} = $_[2];
1017	} else {	1132	} else {
1018	$db->{$_[0]} = $_[1];	1133	$DB->{$_[0]} = $_[1];
1019	}	1134	}
1020	db_dirty;	1135	db_dirty;
1021	}	1136	}
1022		1137
1023	attach_global	1138	cf::global->attach (
1024	prio => 10000,	1139	prio => 10000,
1025	on_cleanup => sub {	1140	on_cleanup => sub {
1026	db_sync;	1141	db_sync;
1027	},	1142	},
1028	;	1143	);
1029	}	1144	}
1030		1145
1031	#############################################################################	1146	#############################################################################
1032	# the server's main()	1147	# the server's main()
1033		1148
…		…
1054		1169
1055	$msg->("reloading...");	1170	$msg->("reloading...");
1056		1171
1057	eval {	1172	eval {
1058	# cancel all watchers	1173	# cancel all watchers
1059	$_->cancel for Event::all_watchers;	1174	for (Event::all_watchers) {
		1175	$_->cancel if $_->data & WF_AUTOCANCEL;
		1176	}
1060		1177
1061	# unload all extensions	1178	# unload all extensions
1062	for (@exts) {	1179	for (@exts) {
1063	$msg->("unloading <$_>");	1180	$msg->("unloading <$_>");
1064	unload_extension $_;	1181	unload_extension $_;
…		…
1124	warn $_[0];	1241	warn $_[0];
1125	print "$_[0]\n";	1242	print "$_[0]\n";
1126	};	1243	};
1127	}	1244	}
1128		1245
		1246	register "<global>", __PACKAGE__;
		1247
1129	register_command "perl-reload", 0, sub {	1248	register_command "perl-reload" => sub {
1130	my ($who, $arg) = @_;	1249	my ($who, $arg) = @_;
1131		1250
1132	if ($who->flag (FLAG_WIZ)) {	1251	if ($who->flag (FLAG_WIZ)) {
1133	_perl_reload {	1252	_perl_reload {
1134	warn $_[0];	1253	warn $_[0];
1135	$who->message ($_[0]);	1254	$who->message ($_[0]);
1136	};	1255	};
1137	}	1256	}
1138	};	1257	};
1139		1258
1140	register "<global>", __PACKAGE__;
1141
1142	unshift @INC, $LIBDIR;	1259	unshift @INC, $LIBDIR;
1143		1260
1144	$TICK_WATCHER = Event->timer (	1261	$TICK_WATCHER = Event->timer (
1145	prio => 1,	1262	prio => 0,
1146	at => $NEXT_TICK \|\| 1,	1263	at => $NEXT_TICK \|\| 1,
		1264	data => WF_AUTOCANCEL,
1147	cb => sub {	1265	cb => sub {
1148	cf::server_tick; # one server iteration	1266	cf::server_tick; # one server iteration
1149		1267
1150	my $NOW = Event::time;	1268	my $NOW = Event::time;
1151	$NEXT_TICK += $TICK;	1269	$NEXT_TICK += $TICK;
1152		1270
1153	# if we are delayed by four ticks, skip them all	1271	# if we are delayed by four ticks or more, skip them all
1154	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1272	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1155		1273
1156	$TICK_WATCHER->at ($NEXT_TICK);	1274	$TICK_WATCHER->at ($NEXT_TICK);
1157	$TICK_WATCHER->start;	1275	$TICK_WATCHER->start;
1158	},	1276	},
1159	);	1277	);
1160		1278
		1279	IO::AIO::max_poll_time $TICK * 0.2;
		1280
		1281	Event->io (fd => IO::AIO::poll_fileno,
		1282	poll => 'r',
		1283	prio => 5,
		1284	data => WF_AUTOCANCEL,
		1285	cb => \&IO::AIO::poll_cb);
		1286
1161	1	1287	1
1162		1288

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.74 by root, Sun Oct 1 15:59:29 2006 UTC vs. Revision 1.97 by root, Fri Dec 22 06:03:20 2006 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.74 by root, Sun Oct 1 15:59:29 2006 UTC vs.
Revision 1.97 by root, Fri Dec 22 06:03:20 2006 UTC