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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.60 by root, Thu Aug 31 06:23:19 2006 UTC vs.
Revision 1.95 by root, Fri Dec 22 02:04:20 2006 UTC

…		…
5	use Storable;	5	use Storable;
6	use Opcode;	6	use Opcode;
7	use Safe;	7	use Safe;
8	use Safe::Hole;	8	use Safe::Hole;
9		9
		10	use IO::AIO ();
		11	use YAML::Syck ();
10	use Time::HiRes;	12	use Time::HiRes;
11	use Event;	13	use Event;
12	$Event::Eval = 1; # no idea why this is required, but it is	14	$Event::Eval = 1; # no idea why this is required, but it is
13		15
		16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		17	$YAML::Syck::ImplicitUnicode = 1;
		18
14	use strict;	19	use strict;
15		20
16	_reload_1;	21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
17		22
18	our %COMMAND = ();	23	our %COMMAND = ();
		24	our %COMMAND_TIME = ();
		25	our %EXTCMD = ();
		26
		27	_init_vars;
		28
19	our @EVENT;	29	our @EVENT;
20	our %PROP_TYPE;	30	our $LIBDIR = datadir . "/ext";
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";
23		31
24	our $TICK = MAX_TIME * 1e-6;	32	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	33	our $TICK_WATCHER;
26	our $NEXT_TICK;	34	our $NEXT_TICK;
		35
		36	our %CFG;
		37
		38	our $UPTIME; $UPTIME ||= time;
		39
		40	#############################################################################
		41
		42	=head2 GLOBAL VARIABLES
		43
		44	=over 4
		45
		46	=item $cf::UPTIME
		47
		48	The timestamp of the server start (so not actually an uptime).
		49
		50	=item $cf::LIBDIR
		51
		52	The perl library directory, where extensions and cf-specific modules can
		53	be found. It will be added to C<@INC> automatically.
		54
		55	=item $cf::TICK
		56
		57	The interval between server ticks, in seconds.
		58
		59	=item %cf::CFG
		60
		61	Configuration for the server, loaded from C</etc/crossfire/config>, or
		62	from wherever your confdir points to.
		63
		64	=back
		65
		66	=cut
27		67
28	BEGIN {	68	BEGIN {
29	*CORE::GLOBAL::warn = sub {	69	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	70	my $msg = join "", @_;
31	$msg .= "\n"	71	$msg .= "\n"
…		…
34	print STDERR "cfperl: $msg";	74	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	75	LOG llevError, "cfperl: $msg";
36	};	76	};
37	}	77	}
38		78
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
40		80	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
41	# generate property mutators	81	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
42	sub prop_gen {	82	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
43	my ($prefix, $class) = @_;	83	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
44
45	no strict 'refs';
46
47	for my $prop (keys %PROP_TYPE) {
48	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
49	my $sub = lc $1;
50
51	my $type = $PROP_TYPE{$prop};
52	my $idx = $PROP_IDX {$prop};
53
54	*{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {
55	$_[0]->get_property ($type, $idx)
56	};
57
58	*{"$class\::set_$sub"} = sub {
59	$_[0]->set_property ($type, $idx, $_[1]);
60	} unless $ignore_set{$prop};
61	}
62	}
63
64	# auto-generate most of the API
65
66	prop_gen OBJECT_PROP => "cf::object";
67	# CFAPI_OBJECT_ANIMATION?
68	prop_gen PLAYER_PROP => "cf::object::player";
69
70	prop_gen MAP_PROP => "cf::map";
71	prop_gen ARCH_PROP => "cf::arch";
72
73	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		85
75	# we bless all objects into (empty) derived classes to force a method lookup	86	# we bless all objects into (empty) derived classes to force a method lookup
76	# within the Safe compartment.	87	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	88	for my $pkg (qw(
		89	cf::global
		90	cf::object cf::object::player
		91	cf::client cf::player
		92	cf::arch cf::living
		93	cf::map cf::party cf::region
		94	)) {
78	no strict 'refs';	95	no strict 'refs';
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	96	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	97	}
81		98
82	$Event::DIED = sub {	99	$Event::DIED = sub {
…		…
84	};	101	};
85		102
86	my %ext_pkg;	103	my %ext_pkg;
87	my @exts;	104	my @exts;
88	my @hook;	105	my @hook;
89	my %command;
90	my %extcmd;
91		106
92	#############################################################################	107	=head2 UTILITY FUNCTIONS
93	# utility functions	108
		109	=over 4
		110
		111	=cut
94		112
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	113	use JSON::Syck (); # TODO# replace by JSON::PC once working
		114
		115	=item $ref = cf::from_json $json
		116
		117	Converts a JSON string into the corresponding perl data structure.
		118
		119	=cut
96		120
97	sub from_json($) {	121	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	122	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]	123	JSON::Syck::Load $_[0]
100	}	124	}
101		125
		126	=item $json = cf::to_json $ref
		127
		128	Converts a perl data structure into its JSON representation.
		129
		130	=cut
		131
102	sub to_json($) {	132	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]	134	JSON::Syck::Dump $_[0]
105	}	135	}
106		136
		137	=back
		138
		139	=cut
		140
107	#############################################################################	141	#############################################################################
108	# "new" plug-in system
109		142
110	=head3 EVENTS AND OBJECT ATTACHMENTS	143	=head2 ATTACHABLE OBJECTS
		144
		145	Many objects in crossfire are so-called attachable objects. That means you can
		146	attach callbacks/event handlers (a collection of which is called an "attachment")
		147	to it. All such attachable objects support the following methods.
		148
		149	In the following description, CLASS can be any of C<global>, C<object>
		150	C<player>, C<client> or C<map> (i.e. the attachable objects in
		151	crossfire+).
111		152
112	=over 4	153	=over 4
113		154
114	=item $object->attach ($attachment, key => $value...)
115
116	=item $object->detach ($attachment)
117
118	Attach/detach a pre-registered attachment to an object.
119
120	=item $player->attach ($attachment, key => $value...)
121
122	=item $player->detach ($attachment)
123
124	Attach/detach a pre-registered attachment to a player.
125
126	=item $map->attach ($attachment, key => $value...)	155	=item $attachable->attach ($attachment, key => $value...)
127		156
128	=item $map->detach ($attachment)	157	=item $attachable->detach ($attachment)
129		158
130	Attach/detach a pre-registered attachment to a map.	159	Attach/detach a pre-registered attachment to a specific object and give it
		160	the specified key/value pairs as arguments.
131		161
132	=item $bool = $object->attached ($name)	162	Example, attach a minesweeper attachment to the given object, making it a
		163	10x10 minesweeper game:
133		164
134	=item $bool = $player->attached ($name)	165	$obj->attach (minesweeper => width => 10, height => 10);
135		166
136	=item $bool = $map->attached ($name)	167	=item $bool = $attachable->attached ($name)
137		168
138	Checks wether the named attachment is currently attached to the object.	169	Checks wether the named attachment is currently attached to the object.
139		170
140	=item cf::attach_global ...	171	=item cf::CLASS->attach ...
141		172
142	Attach handlers for global events.	173	=item cf::CLASS->detach ...
143		174
144	This and all following C<attach_*>-functions expect any number of the	175	Define an anonymous attachment and attach it to all objects of the given
145	following handler/hook descriptions:	176	CLASS. See the next function for an explanation of its arguments.
		177
		178	You can attach to global events by using the C<cf::global> class.
		179
		180	Example, log all player logins:
		181
		182	cf::player->attach (
		183	on_login => sub {
		184	my ($pl) = @_;
		185	...
		186	},
		187	);
		188
		189	Example, attach to the jeweler skill:
		190
		191	cf::object->attach (
		192	type => cf::SKILL,
		193	subtype => cf::SK_JEWELER,
		194	on_use_skill => sub {
		195	my ($sk, $ob, $part, $dir, $msg) = @_;
		196	...
		197	},
		198	);
		199
		200	=item cf::CLASS::attachment $name, ...
		201
		202	Register an attachment by C<$name> through which attachable objects of the
		203	given CLASS can refer to this attachment.
		204
		205	Some classes such as crossfire maps and objects can specify attachments
		206	that are attached at load/instantiate time, thus the need for a name.
		207
		208	These calls expect any number of the following handler/hook descriptions:
146		209
147	=over 4	210	=over 4
148		211
149	=item prio => $number	212	=item prio => $number
150		213
…		…
152	by another C<prio> setting). Lower priority handlers get executed	215	by another C<prio> setting). Lower priority handlers get executed
153	earlier. The default priority is C<0>, and many built-in handlers are	216	earlier. The default priority is C<0>, and many built-in handlers are
154	registered at priority C<-1000>, so lower priorities should not be used	217	registered at priority C<-1000>, so lower priorities should not be used
155	unless you know what you are doing.	218	unless you know what you are doing.
156		219
		220	=item type => $type
		221
		222	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		223	given type of objects only (the additional parameter C<subtype> can be
		224	used to further limit to the given subtype).
		225
157	=item on_I<event> => \&cb	226	=item on_I<event> => \&cb
158		227
159	Call the given code reference whenever the named event happens (event is	228	Call the given code reference whenever the named event happens (event is
160	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	229	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
161	handlers are recognised generally depends on the type of object these	230	handlers are recognised generally depends on the type of object these
…		…
170	package and register them. Only handlers for eevents supported by the	239	package and register them. Only handlers for eevents supported by the
171	object/class are recognised.	240	object/class are recognised.
172		241
173	=back	242	=back
174		243
175	=item cf::attach_to_type $object_type, $subtype, ...	244	Example, define an attachment called "sockpuppet" that calls the given
		245	event handler when a monster attacks:
176		246
177	Attach handlers for a specific object type (e.g. TRANSPORT) and	247	cf::object::attachment sockpuppet =>
178	subtype. If C<$subtype> is zero or undef, matches all objects of the given	248	on_skill_attack => sub {
179	type.	249	my ($self, $victim) = @_;
180		250	...
181	=item cf::attach_to_objects ...	251	}
182		252	}
183	Attach handlers to all objects. Do not use this except for debugging or
184	very rare events, as handlers are (obviously) called for I<all> objects in
185	the game.
186
187	=item cf::attach_to_players ...
188
189	Attach handlers to all players.
190
191	=item cf::attach_to_maps ...
192
193	Attach handlers to all maps.
194
195	=item cf:register_attachment $name, ...
196
197	Register an attachment by name through which objects can refer to this
198	attachment.
199
200	=item cf:register_player_attachment $name, ...
201
202	Register an attachment by name through which players can refer to this
203	attachment.
204
205	=item cf:register_map_attachment $name, ...
206
207	Register an attachment by name through which maps can refer to this
208	attachment.
209		253
210	=cut	254	=cut
211		255
212	# the following variables are defined in .xs and must not be re-created	256	# the following variables are defined in .xs and must not be re-created
213	our @CB_GLOBAL = (); # registry for all global events	257	our @CB_GLOBAL = (); # registry for all global events
214	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	258	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
215	our @CB_PLAYER = ();	259	our @CB_PLAYER = ();
		260	our @CB_CLIENT = ();
216	our @CB_TYPE = (); # registry for type (cf-object class) based events	261	our @CB_TYPE = (); # registry for type (cf-object class) based events
217	our @CB_MAP = ();	262	our @CB_MAP = ();
218		263
219	my %attachment;	264	my %attachment;
220		265
221	sub _attach_cb($\%$$$) {	266	sub _attach_cb($$$$) {
222	my ($registry, $undo, $event, $prio, $cb) = @_;	267	my ($registry, $event, $prio, $cb) = @_;
223		268
224	use sort 'stable';	269	use sort 'stable';
225		270
226	$cb = [$prio, $cb];	271	$cb = [$prio, $cb];
227		272
228	@{$registry->[$event]} = sort	273	@{$registry->[$event]} = sort
229	{ $a->[0] cmp $b->[0] }	274	{ $a->[0] cmp $b->[0] }
230	@{$registry->[$event] || []}, $cb;	275	@{$registry->[$event] || []}, $cb;
231
232	push @{$undo->{cb}}, [$event, $cb];
233	}	276	}
234		277
235	# attach handles attaching event callbacks	278	# attach handles attaching event callbacks
236	# the only thing the caller has to do is pass the correct	279	# the only thing the caller has to do is pass the correct
237	# registry (== where the callback attaches to).	280	# registry (== where the callback attaches to).
238	sub _attach(\@$@) {	281	sub _attach {
239	my ($registry, $klass, @arg) = @_;	282	my ($registry, $klass, @arg) = @_;
240		283
		284	my $object_type;
241	my $prio = 0;	285	my $prio = 0;
242
243	my %undo = (
244	registry => $registry,
245	cb => [],
246	);
247
248	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	286	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
249		287
250	while (@arg) {	288	while (@arg) {
251	my $type = shift @arg;	289	my $type = shift @arg;
252		290
253	if ($type eq "prio") {	291	if ($type eq "prio") {
254	$prio = shift @arg;	292	$prio = shift @arg;
255		293
		294	} elsif ($type eq "type") {
		295	$object_type = shift @arg;
		296	$registry = $CB_TYPE[$object_type] ||= [];
		297
		298	} elsif ($type eq "subtype") {
		299	defined $object_type or Carp::croak "subtype specified without type";
		300	my $object_subtype = shift @arg;
		301	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		302
256	} elsif ($type eq "package") {	303	} elsif ($type eq "package") {
257	my $pkg = shift @arg;	304	my $pkg = shift @arg;
258		305
259	while (my ($name, $id) = each %cb_id) {	306	while (my ($name, $id) = each %cb_id) {
260	if (my $cb = $pkg->can ($name)) {	307	if (my $cb = $pkg->can ($name)) {
261	_attach_cb $registry, %undo, $id, $prio, $cb;	308	_attach_cb $registry, $id, $prio, $cb;
262	}	309	}
263	}	310	}
264		311
265	} elsif (exists $cb_id{$type}) {	312	} elsif (exists $cb_id{$type}) {
266	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;	313	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
267		314
268	} elsif (ref $type) {	315	} elsif (ref $type) {
269	warn "attaching objects not supported, ignoring.\n";	316	warn "attaching objects not supported, ignoring.\n";
270		317
271	} else {	318	} else {
272	shift @arg;	319	shift @arg;
273	warn "attach argument '$type' not supported, ignoring.\n";	320	warn "attach argument '$type' not supported, ignoring.\n";
274	}	321	}
275	}	322	}
276
277	\%undo
278	}	323	}
279		324
280	sub _attach_attachment {	325	sub _object_attach {
281	my ($obj, $name, %arg) = @_;	326	my ($obj, $name, %arg) = @_;
282		327
283	return if exists $obj->{_attachment}{$name};	328	return if exists $obj->{_attachment}{$name};
284
285	my $res;
286		329
287	if (my $attach = $attachment{$name}) {	330	if (my $attach = $attachment{$name}) {
288	my $registry = $obj->registry;	331	my $registry = $obj->registry;
289		332
290	for (@$attach) {	333	for (@$attach) {
291	my ($klass, @attach) = @$_;	334	my ($klass, @attach) = @$_;
292	$res = _attach @$registry, $klass, @attach;	335	_attach $registry, $klass, @attach;
293	}	336	}
294		337
295	$obj->{$name} = \%arg;	338	$obj->{$name} = \%arg;
296	} else {	339	} else {
297	warn "object uses attachment '$name' that is not available, postponing.\n";	340	warn "object uses attachment '$name' that is not available, postponing.\n";
298	}	341	}
299		342
300	$obj->{_attachment}{$name} = undef;	343	$obj->{_attachment}{$name} = undef;
301
302	$res->{attachment} = $name;
303	$res
304	}	344	}
305		345
306	*cf::object::attach =	346	sub cf::attachable::attach {
307	*cf::player::attach =	347	if (ref $_[0]) {
308	*cf::map::attach = sub {	348	_object_attach @_;
309	my ($obj, $name, %arg) = @_;	349	} else {
310		350	_attach shift->_attach_registry, @_;
311	_attach_attachment $obj, $name, %arg;	351	}
312	};	352	};
313		353
314	# all those should be optimised	354	# all those should be optimised
315	*cf::object::detach =	355	sub cf::attachable::detach {
316	*cf::player::detach =
317	*cf::map::detach = sub {
318	my ($obj, $name) = @_;	356	my ($obj, $name) = @_;
319		357
		358	if (ref $obj) {
320	delete $obj->{_attachment}{$name};	359	delete $obj->{_attachment}{$name};
321	reattach ($obj);	360	reattach ($obj);
		361	} else {
		362	Carp::croak "cannot, currently, detach class attachments";
		363	}
322	};	364	};
323		365
324	*cf::object::attached =	366	sub cf::attachable::attached {
325	*cf::player::attached =
326	*cf::map::attached = sub {
327	my ($obj, $name) = @_;	367	my ($obj, $name) = @_;
328		368
329	exists $obj->{_attachment}{$name}	369	exists $obj->{_attachment}{$name}
330	};
331
332	sub attach_global {
333	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
334	}	370	}
335		371
336	sub attach_to_type {	372	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {
337	my $type = shift;	373	eval "#line " . __LINE__ . " 'cf.pm'
338	my $subtype = shift;	374	sub cf::\L$klass\E::_attach_registry {
		375	(\\\@CB_$klass, KLASS_$klass)
		376	}
339		377
340	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_	378	sub cf::\L$klass\E::attachment {
341	}
342
343	sub attach_to_objects {
344	_attach @CB_OBJECT, KLASS_OBJECT, @_
345	}
346
347	sub attach_to_players {
348	_attach @CB_PLAYER, KLASS_PLAYER, @_
349	}
350
351	sub attach_to_maps {
352	_attach @CB_MAP, KLASS_MAP, @_
353	}
354
355	sub register_attachment {
356	my $name = shift;	379	my \$name = shift;
357		380
358	$attachment{$name} = [[KLASS_OBJECT, @_]];
359	}
360
361	sub register_player_attachment {
362	my $name = shift;
363
364	$attachment{$name} = [[KLASS_PLAYER, @_]];
365	}
366
367	sub register_map_attachment {
368	my $name = shift;
369
370	$attachment{$name} = [[KLASS_MAP, @_]];	381	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		382	}
		383	";
		384	die if $@;
371	}	385	}
372		386
373	our $override;	387	our $override;
374	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	388	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
375		389
…		…
389	for (@$callbacks) {	403	for (@$callbacks) {
390	eval { &{$_->[1]} };	404	eval { &{$_->[1]} };
391		405
392	if ($@) {	406	if ($@) {
393	warn "$@";	407	warn "$@";
394	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	408	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
395	override;	409	override;
396	}	410	}
397		411
398	return 1 if $override;	412	return 1 if $override;
399	}	413	}
…		…
404	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	418	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...
405		419
406	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)	420	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
407		421
408	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)	422	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
		423
		424	=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...)
409		425
410	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)	426	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
411		427
412	Generate a global/object/player/map-specific event with the given arguments.	428	Generate a global/object/player/map-specific event with the given arguments.
413		429
…		…
415	removed in future versions), and there is no public API to access override	431	removed in future versions), and there is no public API to access override
416	results (if you must, access C<@cf::invoke_results> directly).	432	results (if you must, access C<@cf::invoke_results> directly).
417		433
418	=back	434	=back
419		435
420	=head2 methods valid for all pointers	436	=cut
		437
		438	#############################################################################
		439
		440	=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
		441
		442	Attachable objects includes objects, players, clients and maps.
421		443
422	=over 4	444	=over 4
423		445
424	=item $object->valid	446	=item $object->valid
425
426	=item $player->valid
427
428	=item $map->valid
429		447
430	Just because you have a perl object does not mean that the corresponding	448	Just because you have a perl object does not mean that the corresponding
431	C-level object still exists. If you try to access an object that has no	449	C-level object still exists. If you try to access an object that has no
432	valid C counterpart anymore you get an exception at runtime. This method	450	valid C counterpart anymore you get an exception at runtime. This method
433	can be used to test for existence of the C object part without causing an	451	can be used to test for existence of the C object part without causing an
…		…
435		453
436	=back	454	=back
437		455
438	=cut	456	=cut
439		457
440	*cf::object::valid =
441	*cf::player::valid =
442	*cf::map::valid = \&cf::_valid;
443
444	#############################################################################	458	#############################################################################
445	# object support	459	# object support
446		460
447	sub instantiate {	461	sub instantiate {
448	my ($obj, $data) = @_;	462	my ($obj, $data) = @_;
…		…
467		481
468	for my $name (keys %{ $obj->{_attachment} || {} }) {	482	for my $name (keys %{ $obj->{_attachment} || {} }) {
469	if (my $attach = $attachment{$name}) {	483	if (my $attach = $attachment{$name}) {
470	for (@$attach) {	484	for (@$attach) {
471	my ($klass, @attach) = @$_;	485	my ($klass, @attach) = @$_;
472	_attach @$registry, $klass, @attach;	486	_attach $registry, $klass, @attach;
473	}	487	}
474	} else {	488	} else {
475	warn "object uses attachment '$name' that is not available, postponing.\n";	489	warn "object uses attachment '$name' that is not available, postponing.\n";
476	}	490	}
477	}	491	}
…		…
506	unlink $filename;	520	unlink $filename;
507	unlink "$filename.pst";	521	unlink "$filename.pst";
508	}	522	}
509	}	523	}
510		524
		525	sub object_freezer_as_string {
		526	my ($rdata, $objs) = @_;
		527
		528	use Data::Dumper;
		529
		530	$$rdata . Dumper $objs
		531	}
		532
511	sub object_thawer_load {	533	sub object_thawer_load {
512	my ($filename) = @_;	534	my ($filename) = @_;
513		535
		536	local $/;
		537
		538	my $av;
		539
		540	#TODO: use sysread etc.
		541	if (open my $data, "<:raw:perlio", $filename) {
		542	$data = <$data>;
514	open my $fh, "<:raw:perlio", "$filename.pst"	543	if (open my $pst, "<:raw:perlio", "$filename.pst") {
515	or return;	544	$av = eval { (Storable::thaw <$pst>)->{objs} };
		545	}
		546	return ($data, $av);
		547	}
516		548
517	eval { local $/; (Storable::thaw <$fh>)->{objs} }	549	()
518	}	550	}
519		551
520	attach_to_objects	552	cf::object->attach (
521	prio => -1000000,	553	prio => -1000000,
522	on_clone => sub {	554	on_clone => sub {
523	my ($src, $dst) = @_;	555	my ($src, $dst) = @_;
524		556
525	@{$dst->registry} = @{$src->registry};	557	@{$dst->registry} = @{$src->registry};
…		…
527	%$dst = %$src;	559	%$dst = %$src;
528		560
529	%{$dst->{_attachment}} = %{$src->{_attachment}}	561	%{$dst->{_attachment}} = %{$src->{_attachment}}
530	if exists $src->{_attachment};	562	if exists $src->{_attachment};
531	},	563	},
532	;	564	);
533		565
534	#############################################################################	566	#############################################################################
535	# old plug-in events	567	# command handling &c
536		568
537	sub inject_event {	569	=item cf::register_command $name => \&callback($ob,$args);
538	my $extension = shift;
539	my $event_code = shift;
540		570
541	my $cb = $hook[$event_code]{$extension}	571	Register a callback for execution when the client sends the user command
542	or return;	572	$name.
543		573
544	&$cb	574	=cut
545	}
546
547	sub inject_global_event {
548	my $event = shift;
549
550	my $cb = $hook[$event]
551	or return;
552
553	List::Util::max map &$_, values %$cb
554	}
555
556	sub inject_command {
557	my ($name, $obj, $params) = @_;
558
559	for my $cmd (@{ $command{$name} }) {
560	$cmd->[1]->($obj, $params);
561	}
562
563	-1
564	}
565		575
566	sub register_command {	576	sub register_command {
567	my ($name, $time, $cb) = @_;	577	my ($name, $cb) = @_;
568		578
569	my $caller = caller;	579	my $caller = caller;
570	#warn "registering command '$name/$time' to '$caller'";	580	#warn "registering command '$name/$time' to '$caller'";
571		581
572	push @{ $command{$name} }, [$time, $cb, $caller];	582	push @{ $COMMAND{$name} }, [$caller, $cb];
573	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
574	}	583	}
		584
		585	=item cf::register_extcmd $name => \&callback($pl,$packet);
		586
		587	Register a callbackf ro execution when the client sends an extcmd packet.
		588
		589	If the callback returns something, it is sent back as if reply was being
		590	called.
		591
		592	=cut
575		593
576	sub register_extcmd {	594	sub register_extcmd {
577	my ($name, $cb) = @_;	595	my ($name, $cb) = @_;
578		596
579	my $caller = caller;	597	my $caller = caller;
580	#warn "registering extcmd '$name' to '$caller'";	598	#warn "registering extcmd '$name' to '$caller'";
581		599
582	$extcmd{$name} = [$cb, $caller];	600	$EXTCMD{$name} = [$cb, $caller];
583	}	601	}
		602
		603	cf::player->attach (
		604	on_command => sub {
		605	my ($pl, $name, $params) = @_;
		606
		607	my $cb = $COMMAND{$name}
		608	or return;
		609
		610	for my $cmd (@$cb) {
		611	$cmd->[1]->($pl->ob, $params);
		612	}
		613
		614	cf::override;
		615	},
		616	on_extcmd => sub {
		617	my ($pl, $buf) = @_;
		618
		619	my $msg = eval { from_json $buf };
		620
		621	if (ref $msg) {
		622	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		623	if (my %reply = $cb->[0]->($pl, $msg)) {
		624	$pl->ext_reply ($msg->{msgid}, %reply);
		625	}
		626	}
		627	} else {
		628	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		629	}
		630
		631	cf::override;
		632	},
		633	);
584		634
585	sub register {	635	sub register {
586	my ($base, $pkg) = @_;	636	my ($base, $pkg) = @_;
587		637
588	#TODO	638	#TODO
…		…
607	. "#line 1 \"$path\"\n{\n"	657	. "#line 1 \"$path\"\n{\n"
608	. (do { local $/; <$fh> })	658	. (do { local $/; <$fh> })
609	. "\n};\n1";	659	. "\n};\n1";
610		660
611	eval $source	661	eval $source
612	or die "$path: $@";	662	or die $@ ? "$path: $@\n"
		663	: "extension disabled.\n";
613		664
614	push @exts, $pkg;	665	push @exts, $pkg;
615	$ext_pkg{$base} = $pkg;	666	$ext_pkg{$base} = $pkg;
616		667
617	# no strict 'refs';	668	# no strict 'refs';
…		…
630	# for my $idx (0 .. $#PLUGIN_EVENT) {	681	# for my $idx (0 .. $#PLUGIN_EVENT) {
631	# delete $hook[$idx]{$pkg};	682	# delete $hook[$idx]{$pkg};
632	# }	683	# }
633		684
634	# remove commands	685	# remove commands
635	for my $name (keys %command) {	686	for my $name (keys %COMMAND) {
636	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	687	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
637		688
638	if (@cb) {	689	if (@cb) {
639	$command{$name} = \@cb;	690	$COMMAND{$name} = \@cb;
640	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
641	} else {	691	} else {
642	delete $command{$name};
643	delete $COMMAND{"$name\000"};	692	delete $COMMAND{$name};
644	}	693	}
645	}	694	}
646		695
647	# remove extcmds	696	# remove extcmds
648	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	697	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
649	delete $extcmd{$name};	698	delete $EXTCMD{$name};
650	}	699	}
651		700
652	if (my $cb = $pkg->can ("unload")) {	701	if (my $cb = $pkg->can ("unload")) {
653	eval {	702	eval {
654	$cb->($pkg);	703	$cb->($pkg);
…		…
658		707
659	Symbol::delete_package $pkg;	708	Symbol::delete_package $pkg;
660	}	709	}
661		710
662	sub load_extensions {	711	sub load_extensions {
663	my $LIBDIR = maps_directory "perl";
664
665	for my $ext (<$LIBDIR/*.ext>) {	712	for my $ext (<$LIBDIR/*.ext>) {
666	next unless -r $ext;	713	next unless -r $ext;
667	eval {	714	eval {
668	load_extension $ext;	715	load_extension $ext;
669	1	716	1
670	} or warn "$ext not loaded: $@";	717	} or warn "$ext not loaded: $@";
671	}	718	}
672	}	719	}
673		720
674	sub _perl_reload(&) {
675	my ($msg) = @_;
676
677	$msg->("reloading...");
678
679	eval {
680	# 1. cancel all watchers
681	$_->cancel for Event::all_watchers;
682
683	# 2. unload all extensions
684	for (@exts) {
685	$msg->("unloading <$_>");
686	unload_extension $_;
687	}
688
689	# 3. unload all modules loaded from $LIBDIR
690	while (my ($k, $v) = each %INC) {
691	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
692
693	$msg->("removing <$k>");
694	delete $INC{$k};
695
696	$k =~ s/\.pm$//;
697	$k =~ s/\//::/g;
698
699	if (my $cb = $k->can ("unload_module")) {
700	$cb->();
701	}
702
703	Symbol::delete_package $k;
704	}
705
706	# 4. get rid of safe::, as good as possible
707	Symbol::delete_package "safe::$_"
708	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
709
710	# 5. remove register_script_function callbacks
711	# TODO
712
713	# 6. unload cf.pm "a bit"
714	delete $INC{"cf.pm"};
715
716	# don't, removes xs symbols, too,
717	# and global variables created in xs
718	#Symbol::delete_package __PACKAGE__;
719
720	# 7. reload cf.pm
721	$msg->("reloading cf.pm");
722	require cf;
723	};
724	$msg->($@) if $@;
725
726	$msg->("reloaded");
727	};
728
729	sub perl_reload() {
730	_perl_reload {
731	warn $_[0];
732	print "$_[0]\n";
733	};
734	}
735
736	register_command "perl-reload", 0, sub {
737	my ($who, $arg) = @_;
738
739	if ($who->flag (FLAG_WIZ)) {
740	_perl_reload {
741	warn $_[0];
742	$who->message ($_[0]);
743	};
744	}
745	};
746
747	#############################################################################
748	# extcmd framework, basically convert ext <msg>
749	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
750
751	attach_to_players
752	on_extcmd => sub {
753	my ($pl, $buf) = @_;
754
755	my $msg = eval { from_json $buf };
756
757	if (ref $msg) {
758	if (my $cb = $extcmd{$msg->{msgtype}}) {
759	if (my %reply = $cb->[0]->($pl, $msg)) {
760	$pl->ext_reply ($msg->{msgid}, %reply);
761	}
762	}
763	} else {
764	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
765	}
766
767	cf::override;
768	},
769	;
770
771	#############################################################################	721	#############################################################################
772	# load/save/clean perl data associated with a map	722	# load/save/clean perl data associated with a map
773		723
774	*cf::mapsupport::on_clean = sub {	724	*cf::mapsupport::on_clean = sub {
775	my ($map) = @_;	725	my ($map) = @_;
…		…
778	defined $path or return;	728	defined $path or return;
779		729
780	unlink "$path.pst";	730	unlink "$path.pst";
781	};	731	};
782		732
783	attach_to_maps prio => -10000, package => cf::mapsupport::;	733	cf::map->attach (prio => -10000, package => cf::mapsupport::);
784		734
785	#############################################################################	735	#############################################################################
786	# load/save perl data associated with player->ob objects	736	# load/save perl data associated with player->ob objects
787		737
788	sub all_objects(@) {	738	sub all_objects(@) {
789	@_, map all_objects ($_->inv), @_	739	@_, map all_objects ($_->inv), @_
790	}	740	}
791		741
792	# TODO: compatibility cruft, remove when no longer needed	742	# TODO: compatibility cruft, remove when no longer needed
793	attach_to_players	743	cf::player->attach (
794	on_load => sub {	744	on_load => sub {
795	my ($pl, $path) = @_;	745	my ($pl, $path) = @_;
796		746
797	for my $o (all_objects $pl->ob) {	747	for my $o (all_objects $pl->ob) {
798	if (my $value = $o->get_ob_key_value ("_perl_data")) {	748	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
800		750
801	%$o = %{ Storable::thaw pack "H*", $value };	751	%$o = %{ Storable::thaw pack "H*", $value };
802	}	752	}
803	}	753	}
804	},	754	},
805	;	755	);
806		756
807	#############################################################################	757	#############################################################################
808	# core extensions - in perl	758
		759	=head2 CORE EXTENSIONS
		760
		761	Functions and methods that extend core crossfire objects.
		762
		763	=head3 cf::player
		764
		765	=over 4
809		766
810	=item cf::player::exists $login	767	=item cf::player::exists $login
811		768
812	Returns true when the given account exists.	769	Returns true when the given account exists.
813		770
…		…
816	sub cf::player::exists($) {	773	sub cf::player::exists($) {
817	cf::player::find $_[0]	774	cf::player::find $_[0]
818	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	775	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
819	}	776	}
820		777
		778	=item $player->ext_reply ($msgid, $msgtype, %msg)
		779
		780	Sends an ext reply to the player.
		781
		782	=cut
		783
		784	sub cf::player::ext_reply($$$%) {
		785	my ($self, $id, %msg) = @_;
		786
		787	$msg{msgid} = $id;
		788
		789	$self->send ("ext " . to_json \%msg);
		790	}
		791
		792	=back
		793
		794	=head3 cf::object::player
		795
		796	=over 4
		797
821	=item $player->reply ($npc, $msg[, $flags])	798	=item $player_object->reply ($npc, $msg[, $flags])
822		799
823	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	800	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
824	can be C<undef>. Does the right thing when the player is currently in a	801	can be C<undef>. Does the right thing when the player is currently in a
825	dialogue with the given NPC character.	802	dialogue with the given NPC character.
826		803
827	=cut	804	=cut
828		805
829	# rough implementation of a future "reply" method that works	806	# rough implementation of a future "reply" method that works
830	# with dialog boxes.	807	# with dialog boxes.
		808	#TODO: the first argument must go, split into a $npc->reply_to ( method
831	sub cf::object::player::reply($$$;$) {	809	sub cf::object::player::reply($$$;$) {
832	my ($self, $npc, $msg, $flags) = @_;	810	my ($self, $npc, $msg, $flags) = @_;
833		811
834	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	812	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
835		813
…		…
839	$msg = $npc->name . " says: $msg" if $npc;	817	$msg = $npc->name . " says: $msg" if $npc;
840	$self->message ($msg, $flags);	818	$self->message ($msg, $flags);
841	}	819	}
842	}	820	}
843		821
844	=item $player->ext_reply ($msgid, $msgtype, %msg)	822	=item $player_object->may ("access")
845		823
846	Sends an ext reply to the player.	824	Returns wether the given player is authorized to access resource "access"
		825	(e.g. "command_wizcast").
847		826
848	=cut	827	=cut
849		828
850	sub cf::player::ext_reply($$$%) {	829	sub cf::object::player::may {
851	my ($self, $id, %msg) = @_;	830	my ($self, $access) = @_;
852		831
853	$msg{msgid} = $id;	832	$self->flag (cf::FLAG_WIZ) ||
854		833	(ref $cf::CFG{"may_$access"}
855	$self->send ("ext " . to_json \%msg);	834	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		835	: $cf::CFG{"may_$access"})
856	}	836	}
857		837
858	#############################################################################	838	=head3 cf::client
859	# map scripting support	839
		840	=over 4
		841
		842	=item $client->send_drawinfo ($text, $flags)
		843
		844	Sends a drawinfo packet to the client. Circumvents output buffering so
		845	should not be used under normal circumstances.
		846
		847	=cut
		848
		849	sub cf::client::send_drawinfo {
		850	my ($self, $text, $flags) = @_;
		851
		852	utf8::encode $text;
		853	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		854	}
		855
		856
		857	=item $success = $client->query ($flags, "text", \&cb)
		858
		859	Queues a query to the client, calling the given callback with
		860	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		861	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		862
		863	Queries can fail, so check the return code. Or don't, as queries will become
		864	reliable at some point in the future.
		865
		866	=cut
		867
		868	sub cf::client::query {
		869	my ($self, $flags, $text, $cb) = @_;
		870
		871	return unless $self->state == ST_PLAYING
		872	|| $self->state == ST_SETUP
		873	|| $self->state == ST_CUSTOM;
		874
		875	$self->state (ST_CUSTOM);
		876
		877	utf8::encode $text;
		878	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		879
		880	$self->send_packet ($self->{query_queue}[0][0])
		881	if @{ $self->{query_queue} } == 1;
		882	}
		883
		884	cf::client->attach (
		885	on_reply => sub {
		886	my ($ns, $msg) = @_;
		887
		888	# this weird shuffling is so that direct followup queries
		889	# get handled first
		890	my $queue = delete $ns->{query_queue};
		891
		892	(shift @$queue)->[1]->($msg);
		893
		894	push @{ $ns->{query_queue} }, @$queue;
		895
		896	if (@{ $ns->{query_queue} } == @$queue) {
		897	if (@$queue) {
		898	$ns->send_packet ($ns->{query_queue}[0][0]);
		899	} else {
		900	$ns->state (ST_PLAYING);
		901	}
		902	}
		903	},
		904	);
		905
		906	=back
		907
		908
		909	=head2 SAFE SCRIPTING
		910
		911	Functions that provide a safe environment to compile and execute
		912	snippets of perl code without them endangering the safety of the server
		913	itself. Looping constructs, I/O operators and other built-in functionality
		914	is not available in the safe scripting environment, and the number of
		915	functions and methods that can be called is greatly reduced.
		916
		917	=cut
860		918
861	our $safe = new Safe "safe";	919	our $safe = new Safe "safe";
862	our $safe_hole = new Safe::Hole;	920	our $safe_hole = new Safe::Hole;
863		921
864	$SIG{FPE} = 'IGNORE';	922	$SIG{FPE} = 'IGNORE';
865		923
866	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	924	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
867		925
868	# here we export the classes and methods available to script code	926	# here we export the classes and methods available to script code
869		927
		928	=pod
		929
		930	The following fucntions and emthods are available within a safe environment:
		931
		932	cf::object contr pay_amount pay_player map
		933	cf::object::player player
		934	cf::player peaceful
		935	cf::map trigger
		936
		937	=cut
		938
870	for (	939	for (
871	["cf::object" => qw(contr pay_amount pay_player)],	940	["cf::object" => qw(contr pay_amount pay_player map)],
872	["cf::object::player" => qw(player)],	941	["cf::object::player" => qw(player)],
873	["cf::player" => qw(peaceful)],	942	["cf::player" => qw(peaceful)],
		943	["cf::map" => qw(trigger)],
874	) {	944	) {
875	no strict 'refs';	945	no strict 'refs';
876	my ($pkg, @funs) = @$_;	946	my ($pkg, @funs) = @$_;
877	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	947	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
878	for @funs;	948	for @funs;
879	}	949	}
		950
		951	=over 4
		952
		953	=item @retval = safe_eval $code, [var => value, ...]
		954
		955	Compiled and executes the given perl code snippet. additional var/value
		956	pairs result in temporary local (my) scalar variables of the given name
		957	that are available in the code snippet. Example:
		958
		959	my $five = safe_eval '$first + $second', first => 1, second => 4;
		960
		961	=cut
880		962
881	sub safe_eval($;@) {	963	sub safe_eval($;@) {
882	my ($code, %vars) = @_;	964	my ($code, %vars) = @_;
883		965
884	my $qcode = $code;	966	my $qcode = $code;
…		…
907	}	989	}
908		990
909	wantarray ? @res : $res[0]	991	wantarray ? @res : $res[0]
910	}	992	}
911		993
		994	=item cf::register_script_function $function => $cb
		995
		996	Register a function that can be called from within map/npc scripts. The
		997	function should be reasonably secure and should be put into a package name
		998	like the extension.
		999
		1000	Example: register a function that gets called whenever a map script calls
		1001	C<rent::overview>, as used by the C<rent> extension.
		1002
		1003	cf::register_script_function "rent::overview" => sub {
		1004	...
		1005	};
		1006
		1007	=cut
		1008
912	sub register_script_function {	1009	sub register_script_function {
913	my ($fun, $cb) = @_;	1010	my ($fun, $cb) = @_;
914		1011
915	no strict 'refs';	1012	no strict 'refs';
916	*{"safe::$fun"} = $safe_hole->wrap ($cb);	1013	*{"safe::$fun"} = $safe_hole->wrap ($cb);
917	}	1014	}
918		1015
		1016	=back
		1017
		1018	=cut
		1019
		1020	#############################################################################
		1021
		1022	=head2 EXTENSION DATABASE SUPPORT
		1023
		1024	Crossfire maintains a very simple database for extension use. It can
		1025	currently store anything that can be serialised using Storable, which
		1026	excludes objects.
		1027
		1028	The parameter C<$family> should best start with the name of the extension
		1029	using it, it should be unique.
		1030
		1031	=over 4
		1032
		1033	=item $hashref = cf::db_get $family
		1034
		1035	Return a hashref for use by the extension C<$family>, which can be
		1036	modified. After modifications, you have to call C<cf::db_dirty> or
		1037	C<cf::db_sync>.
		1038
		1039	=item $value = cf::db_get $family => $key
		1040
		1041	Returns a single value from the database
		1042
		1043	=item cf::db_put $family => $hashref
		1044
		1045	Stores the given family hashref into the database. Updates are delayed, if
		1046	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		1047
		1048	=item cf::db_put $family => $key => $value
		1049
		1050	Stores the given C<$value> in the family hash. Updates are delayed, if you
		1051	want the data to be synced to disk immediately, use C<cf::db_sync>.
		1052
		1053	=item cf::db_dirty
		1054
		1055	Marks the database as dirty, to be updated at a later time.
		1056
		1057	=item cf::db_sync
		1058
		1059	Immediately write the database to disk I<if it is dirty>.
		1060
		1061	=cut
		1062
		1063	our $DB;
		1064
		1065	{
		1066	my $path = cf::localdir . "/database.pst";
		1067
		1068	sub db_load() {
		1069	warn "loading database $path\n";#d# remove later
		1070	$DB = stat $path ? Storable::retrieve $path : { };
		1071	}
		1072
		1073	my $pid;
		1074
		1075	sub db_save() {
		1076	warn "saving database $path\n";#d# remove later
		1077	waitpid $pid, 0 if $pid;
		1078	if (0 == ($pid = fork)) {
		1079	$DB->{_meta}{version} = 1;
		1080	Storable::nstore $DB, "$path~";
		1081	rename "$path~", $path;
		1082	cf::_exit 0 if defined $pid;
		1083	}
		1084	}
		1085
		1086	my $dirty;
		1087
		1088	sub db_sync() {
		1089	db_save if $dirty;
		1090	undef $dirty;
		1091	}
		1092
		1093	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
		1094	db_sync;
		1095	});
		1096
		1097	sub db_dirty() {
		1098	$dirty = 1;
		1099	$idle->start;
		1100	}
		1101
		1102	sub db_get($;$) {
		1103	@_ >= 2
		1104	? $DB->{$_[0]}{$_[1]}
		1105	: ($DB->{$_[0]} ||= { })
		1106	}
		1107
		1108	sub db_put($$;$) {
		1109	if (@_ >= 3) {
		1110	$DB->{$_[0]}{$_[1]} = $_[2];
		1111	} else {
		1112	$DB->{$_[0]} = $_[1];
		1113	}
		1114	db_dirty;
		1115	}
		1116
		1117	cf::global->attach (
		1118	prio => 10000,
		1119	on_cleanup => sub {
		1120	db_sync;
		1121	},
		1122	);
		1123	}
		1124
919	#############################################################################	1125	#############################################################################
920	# the server's main()	1126	# the server's main()
921		1127
		1128	sub cfg_load {
		1129	open my $fh, "<:utf8", cf::confdir . "/config"
		1130	or return;
		1131
		1132	local $/;
		1133	*CFG = YAML::Syck::Load <$fh>;
		1134	}
		1135
922	sub main {	1136	sub main {
		1137	cfg_load;
		1138	db_load;
		1139	load_extensions;
923	Event::loop;	1140	Event::loop;
924	}	1141	}
925		1142
926	#############################################################################	1143	#############################################################################
927	# initialisation	1144	# initialisation
928		1145
		1146	sub _perl_reload(&) {
		1147	my ($msg) = @_;
		1148
		1149	$msg->("reloading...");
		1150
		1151	eval {
		1152	# cancel all watchers
		1153	for (Event::all_watchers) {
		1154	$_->cancel if $_->data & WF_AUTOCANCEL;
		1155	}
		1156
		1157	# unload all extensions
		1158	for (@exts) {
		1159	$msg->("unloading <$_>");
		1160	unload_extension $_;
		1161	}
		1162
		1163	# unload all modules loaded from $LIBDIR
		1164	while (my ($k, $v) = each %INC) {
		1165	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		1166
		1167	$msg->("removing <$k>");
		1168	delete $INC{$k};
		1169
		1170	$k =~ s/\.pm$//;
		1171	$k =~ s/\//::/g;
		1172
		1173	if (my $cb = $k->can ("unload_module")) {
		1174	$cb->();
		1175	}
		1176
		1177	Symbol::delete_package $k;
		1178	}
		1179
		1180	# sync database to disk
		1181	cf::db_sync;
		1182
		1183	# get rid of safe::, as good as possible
		1184	Symbol::delete_package "safe::$_"
		1185	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
		1186
		1187	# remove register_script_function callbacks
		1188	# TODO
		1189
		1190	# unload cf.pm "a bit"
		1191	delete $INC{"cf.pm"};
		1192
		1193	# don't, removes xs symbols, too,
		1194	# and global variables created in xs
		1195	#Symbol::delete_package __PACKAGE__;
		1196
		1197	# reload cf.pm
		1198	$msg->("reloading cf.pm");
		1199	require cf;
		1200
		1201	# load config and database again
		1202	cf::cfg_load;
		1203	cf::db_load;
		1204
		1205	# load extensions
		1206	$msg->("load extensions");
		1207	cf::load_extensions;
		1208
		1209	# reattach attachments to objects
		1210	$msg->("reattach");
		1211	_global_reattach;
		1212	};
		1213	$msg->($@) if $@;
		1214
		1215	$msg->("reloaded");
		1216	};
		1217
		1218	sub perl_reload() {
		1219	_perl_reload {
		1220	warn $_[0];
		1221	print "$_[0]\n";
		1222	};
		1223	}
		1224
929	register "<global>", __PACKAGE__;	1225	register "<global>", __PACKAGE__;
930		1226
		1227	register_command "perl-reload" => sub {
		1228	my ($who, $arg) = @_;
		1229
		1230	if ($who->flag (FLAG_WIZ)) {
		1231	_perl_reload {
		1232	warn $_[0];
		1233	$who->message ($_[0]);
		1234	};
		1235	}
		1236	};
		1237
931	unshift @INC, $LIBDIR;	1238	unshift @INC, $LIBDIR;
932		1239
933	load_extensions;
934
935	$TICK_WATCHER = Event->timer (	1240	$TICK_WATCHER = Event->timer (
936	prio => 1,	1241	prio => 0,
937	at => $NEXT_TICK || 1,	1242	at => $NEXT_TICK || 1,
		1243	data => WF_AUTOCANCEL,
938	cb => sub {	1244	cb => sub {
939	cf::server_tick; # one server iteration	1245	cf::server_tick; # one server iteration
940		1246
941	my $NOW = Event::time;	1247	my $NOW = Event::time;
942	$NEXT_TICK += $TICK;	1248	$NEXT_TICK += $TICK;
943		1249
944	# if we are delayed by four ticks, skip them all	1250	# if we are delayed by four ticks or more, skip them all
945	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1251	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
946		1252
947	$TICK_WATCHER->at ($NEXT_TICK);	1253	$TICK_WATCHER->at ($NEXT_TICK);
948	$TICK_WATCHER->start;	1254	$TICK_WATCHER->start;
949	},	1255	},
950	);	1256	);
951		1257
952	_reload_2;	1258	IO::AIO::max_poll_time $TICK * 0.2;
		1259
		1260	Event->io (fd => IO::AIO::poll_fileno,
		1261	poll => 'r',
		1262	prio => 5,
		1263	data => WF_AUTOCANCEL,
		1264	cb => \&IO::AIO::poll_cb);
953		1265
954	1	1266	1
955		1267

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