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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.71 by root, Sun Oct 1 10:59:30 2006 UTC vs.
Revision 1.104 by root, Sat Dec 30 16:56:16 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 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18
		19	use IO::AIO 2.3;
		20	use YAML::Syck ();
10	use Time::HiRes;	21	use Time::HiRes;
11	use Event;	22
12	$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
13		24
14	use strict;	25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		26	$YAML::Syck::ImplicitUnicode = 1;
15		27
16	_init_vars;	28	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
17		29
		30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		31
18	our %COMMAND = ();	32	our %COMMAND = ();
		33	our %COMMAND_TIME = ();
		34	our %EXTCMD = ();
		35
19	our @EVENT;	36	our @EVENT;
20	our $LIBDIR = maps_directory "perl";	37	our $LIBDIR = datadir . "/ext";
21		38
22	our $TICK = MAX_TIME * 1e-6;	39	our $TICK = MAX_TIME * 1e-6;
23	our $TICK_WATCHER;	40	our $TICK_WATCHER;
24	our $NEXT_TICK;	41	our $NEXT_TICK;
		42	our $NOW;
25		43
26	our %CFG;	44	our %CFG;
27		45
		46	our $UPTIME; $UPTIME ||= time;
		47	our $RUNTIME;
		48
		49	our %MAP; # all maps
		50	our $LINK_MAP; # the special {link} map
		51	our $FREEZE;
		52
		53	binmode STDOUT;
		54	binmode STDERR;
		55
		56	# read virtual server time, if available
		57	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		58	open my $fh, "<", cf::localdir . "/runtime"
		59	or die "unable to read runtime file: $!";
		60	$RUNTIME = <$fh> + 0.;
		61	}
		62
		63	mkdir cf::localdir;
		64	mkdir cf::localdir . "/" . cf::playerdir;
		65	mkdir cf::localdir . "/" . cf::tmpdir;
		66	mkdir cf::localdir . "/" . cf::uniquedir;
		67
		68	our %EXT_CORO;
		69
28	#############################################################################	70	#############################################################################
29		71
30	=head2 GLOBAL VARIABLES	72	=head2 GLOBAL VARIABLES
31		73
32	=over 4	74	=over 4
		75
		76	=item $cf::UPTIME
		77
		78	The timestamp of the server start (so not actually an uptime).
		79
		80	=item $cf::RUNTIME
		81
		82	The time this server has run, starts at 0 and is increased by $cf::TICK on
		83	every server tick.
33		84
34	=item $cf::LIBDIR	85	=item $cf::LIBDIR
35		86
36	The perl library directory, where extensions and cf-specific modules can	87	The perl library directory, where extensions and cf-specific modules can
37	be found. It will be added to C<@INC> automatically.	88	be found. It will be added to C<@INC> automatically.
		89
		90	=item $cf::NOW
		91
		92	The time of the last (current) server tick.
38		93
39	=item $cf::TICK	94	=item $cf::TICK
40		95
41	The interval between server ticks, in seconds.	96	The interval between server ticks, in seconds.
42		97
…		…
50	=cut	105	=cut
51		106
52	BEGIN {	107	BEGIN {
53	*CORE::GLOBAL::warn = sub {	108	*CORE::GLOBAL::warn = sub {
54	my $msg = join "", @_;	109	my $msg = join "", @_;
		110	utf8::encode $msg;
		111
55	$msg .= "\n"	112	$msg .= "\n"
56	unless $msg =~ /\n$/;	113	unless $msg =~ /\n$/;
57		114
58	print STDERR "cfperl: $msg";
59	LOG llevError, "cfperl: $msg";	115	LOG llevError, "cfperl: $msg";
60	};	116	};
61	}	117	}
62		118
		119	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		120	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		121	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		122	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		123	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
63	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	124	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
64		125
65	# we bless all objects into (empty) derived classes to force a method lookup	126	# we bless all objects into (empty) derived classes to force a method lookup
66	# within the Safe compartment.	127	# within the Safe compartment.
67	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	128	for my $pkg (qw(
		129	cf::global cf::attachable
		130	cf::object cf::object::player
		131	cf::client cf::player
		132	cf::arch cf::living
		133	cf::map cf::party cf::region
		134	)) {
68	no strict 'refs';	135	no strict 'refs';
69	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	136	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
70	}	137	}
71		138
72	$Event::DIED = sub {	139	$Event::DIED = sub {
…		…
74	};	141	};
75		142
76	my %ext_pkg;	143	my %ext_pkg;
77	my @exts;	144	my @exts;
78	my @hook;	145	my @hook;
79	my %command;
80	my %extcmd;
81		146
82	=head2 UTILITY FUNCTIONS	147	=head2 UTILITY FUNCTIONS
83		148
84	=over 4	149	=over 4
85		150
…		…
107	sub to_json($) {	172	sub to_json($) {
108	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	173	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
109	JSON::Syck::Dump $_[0]	174	JSON::Syck::Dump $_[0]
110	}	175	}
111		176
		177	=item $coro = cf::coro { BLOCK }
		178
		179	Creates and returns a new coro. This coro is automcatially being canceled
		180	when the extension calling this is being unloaded.
		181
		182	=cut
		183
		184	sub coro(&) {
		185	my $cb = shift;
		186
		187	my $coro; $coro = async {
		188	eval {
		189	$cb->();
		190	};
		191	warn $@ if $@;
		192	};
		193
		194	$coro->on_destroy (sub {
		195	delete $EXT_CORO{$coro+0};
		196	});
		197	$EXT_CORO{$coro+0} = $coro;
		198
		199	$coro
		200	}
		201
112	=back	202	=back
113		203
114	=cut	204	=cut
115		205
116	#############################################################################	206	#############################################################################
117		207
118	=head2 EVENTS AND OBJECT ATTACHMENTS	208	=head2 ATTACHABLE OBJECTS
		209
		210	Many objects in crossfire are so-called attachable objects. That means you can
		211	attach callbacks/event handlers (a collection of which is called an "attachment")
		212	to it. All such attachable objects support the following methods.
		213
		214	In the following description, CLASS can be any of C<global>, C<object>
		215	C<player>, C<client> or C<map> (i.e. the attachable objects in
		216	crossfire+).
119		217
120	=over 4	218	=over 4
121		219
122	=item $object->attach ($attachment, key => $value...)
123
124	=item $object->detach ($attachment)
125
126	Attach/detach a pre-registered attachment to an object.
127
128	=item $player->attach ($attachment, key => $value...)
129
130	=item $player->detach ($attachment)
131
132	Attach/detach a pre-registered attachment to a player.
133
134	=item $map->attach ($attachment, key => $value...)	220	=item $attachable->attach ($attachment, key => $value...)
135		221
136	=item $map->detach ($attachment)	222	=item $attachable->detach ($attachment)
137		223
138	Attach/detach a pre-registered attachment to a map.	224	Attach/detach a pre-registered attachment to a specific object and give it
		225	the specified key/value pairs as arguments.
139		226
140	=item $bool = $object->attached ($name)	227	Example, attach a minesweeper attachment to the given object, making it a
		228	10x10 minesweeper game:
141		229
142	=item $bool = $player->attached ($name)	230	$obj->attach (minesweeper => width => 10, height => 10);
143		231
144	=item $bool = $map->attached ($name)	232	=item $bool = $attachable->attached ($name)
145		233
146	Checks wether the named attachment is currently attached to the object.	234	Checks wether the named attachment is currently attached to the object.
147		235
148	=item cf::attach_global ...	236	=item cf::CLASS->attach ...
149		237
150	Attach handlers for global events.	238	=item cf::CLASS->detach ...
151		239
152	This and all following C<attach_*>-functions expect any number of the	240	Define an anonymous attachment and attach it to all objects of the given
153	following handler/hook descriptions:	241	CLASS. See the next function for an explanation of its arguments.
		242
		243	You can attach to global events by using the C<cf::global> class.
		244
		245	Example, log all player logins:
		246
		247	cf::player->attach (
		248	on_login => sub {
		249	my ($pl) = @_;
		250	...
		251	},
		252	);
		253
		254	Example, attach to the jeweler skill:
		255
		256	cf::object->attach (
		257	type => cf::SKILL,
		258	subtype => cf::SK_JEWELER,
		259	on_use_skill => sub {
		260	my ($sk, $ob, $part, $dir, $msg) = @_;
		261	...
		262	},
		263	);
		264
		265	=item cf::CLASS::attachment $name, ...
		266
		267	Register an attachment by C<$name> through which attachable objects of the
		268	given CLASS can refer to this attachment.
		269
		270	Some classes such as crossfire maps and objects can specify attachments
		271	that are attached at load/instantiate time, thus the need for a name.
		272
		273	These calls expect any number of the following handler/hook descriptions:
154		274
155	=over 4	275	=over 4
156		276
157	=item prio => $number	277	=item prio => $number
158		278
…		…
160	by another C<prio> setting). Lower priority handlers get executed	280	by another C<prio> setting). Lower priority handlers get executed
161	earlier. The default priority is C<0>, and many built-in handlers are	281	earlier. The default priority is C<0>, and many built-in handlers are
162	registered at priority C<-1000>, so lower priorities should not be used	282	registered at priority C<-1000>, so lower priorities should not be used
163	unless you know what you are doing.	283	unless you know what you are doing.
164		284
		285	=item type => $type
		286
		287	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		288	given type of objects only (the additional parameter C<subtype> can be
		289	used to further limit to the given subtype).
		290
165	=item on_I<event> => \&cb	291	=item on_I<event> => \&cb
166		292
167	Call the given code reference whenever the named event happens (event is	293	Call the given code reference whenever the named event happens (event is
168	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	294	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
169	handlers are recognised generally depends on the type of object these	295	handlers are recognised generally depends on the type of object these
…		…
178	package and register them. Only handlers for eevents supported by the	304	package and register them. Only handlers for eevents supported by the
179	object/class are recognised.	305	object/class are recognised.
180		306
181	=back	307	=back
182		308
183	=item cf::attach_to_type $object_type, $subtype, ...	309	Example, define an attachment called "sockpuppet" that calls the given
		310	event handler when a monster attacks:
184		311
185	Attach handlers for a specific object type (e.g. TRANSPORT) and	312	cf::object::attachment sockpuppet =>
186	subtype. If C<$subtype> is zero or undef, matches all objects of the given	313	on_skill_attack => sub {
187	type.	314	my ($self, $victim) = @_;
188		315	...
189	=item cf::attach_to_objects ...
190
191	Attach handlers to all objects. Do not use this except for debugging or
192	very rare events, as handlers are (obviously) called for I<all> objects in
193	the game.
194
195	=item cf::attach_to_players ...
196
197	Attach handlers to all players.
198
199	=item cf::attach_to_maps ...
200
201	Attach handlers to all maps.
202
203	=item cf:register_attachment $name, ...
204
205	Register an attachment by name through which objects can refer to this
206	attachment.
207
208	=item cf:register_player_attachment $name, ...
209
210	Register an attachment by name through which players can refer to this
211	attachment.
212
213	=item cf:register_map_attachment $name, ...
214
215	Register an attachment by name through which maps can refer to this
216	attachment.
217
218	=cut
219
220	# the following variables are defined in .xs and must not be re-created
221	our @CB_GLOBAL = (); # registry for all global events
222	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
223	our @CB_PLAYER = ();
224	our @CB_TYPE = (); # registry for type (cf-object class) based events
225	our @CB_MAP = ();
226
227	my %attachment;
228
229	sub _attach_cb($\%$$$) {
230	my ($registry, $undo, $event, $prio, $cb) = @_;
231
232	use sort 'stable';
233
234	$cb = [$prio, $cb];
235
236	@{$registry->[$event]} = sort
237	{ $a->[0] cmp $b->[0] }
238	@{$registry->[$event] || []}, $cb;
239
240	push @{$undo->{cb}}, [$event, $cb];
241	}
242
243	# attach handles attaching event callbacks
244	# the only thing the caller has to do is pass the correct
245	# registry (== where the callback attaches to).
246	sub _attach(\@$@) {
247	my ($registry, $klass, @arg) = @_;
248
249	my $prio = 0;
250
251	my %undo = (
252	registry => $registry,
253	cb => [],
254	);
255
256	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
257
258	while (@arg) {
259	my $type = shift @arg;
260
261	if ($type eq "prio") {
262	$prio = shift @arg;
263
264	} elsif ($type eq "package") {
265	my $pkg = shift @arg;
266
267	while (my ($name, $id) = each %cb_id) {
268	if (my $cb = $pkg->can ($name)) {
269	_attach_cb $registry, %undo, $id, $prio, $cb;
270	}
271	}	316	}
272
273	} elsif (exists $cb_id{$type}) {
274	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
275
276	} elsif (ref $type) {
277	warn "attaching objects not supported, ignoring.\n";
278
279	} else {
280	shift @arg;
281	warn "attach argument '$type' not supported, ignoring.\n";
282	}
283	}
284
285	\%undo
286	}
287
288	sub _attach_attachment {
289	my ($obj, $name, %arg) = @_;
290
291	return if exists $obj->{_attachment}{$name};
292
293	my $res;
294
295	if (my $attach = $attachment{$name}) {
296	my $registry = $obj->registry;
297
298	for (@$attach) {
299	my ($klass, @attach) = @$_;
300	$res = _attach @$registry, $klass, @attach;
301	}
302
303	$obj->{$name} = \%arg;
304	} else {
305	warn "object uses attachment '$name' that is not available, postponing.\n";
306	}
307
308	$obj->{_attachment}{$name} = undef;
309
310	$res->{attachment} = $name;
311	$res
312	}
313
314	*cf::object::attach =
315	*cf::player::attach =
316	*cf::map::attach = sub {
317	my ($obj, $name, %arg) = @_;
318
319	_attach_attachment $obj, $name, %arg;
320	};
321
322	# all those should be optimised
323	*cf::object::detach =
324	*cf::player::detach =
325	*cf::map::detach = sub {
326	my ($obj, $name) = @_;
327
328	delete $obj->{_attachment}{$name};
329	reattach ($obj);
330	};
331
332	*cf::object::attached =
333	*cf::player::attached =
334	*cf::map::attached = sub {
335	my ($obj, $name) = @_;
336
337	exists $obj->{_attachment}{$name}
338	};
339
340	sub attach_global {
341	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
342	}
343
344	sub attach_to_type {
345	my $type = shift;
346	my $subtype = shift;
347
348	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
349	}
350
351	sub attach_to_objects {
352	_attach @CB_OBJECT, KLASS_OBJECT, @_
353	}
354
355	sub attach_to_players {
356	_attach @CB_PLAYER, KLASS_PLAYER, @_
357	}
358
359	sub attach_to_maps {
360	_attach @CB_MAP, KLASS_MAP, @_
361	}
362
363	sub register_attachment {
364	my $name = shift;
365
366	$attachment{$name} = [[KLASS_OBJECT, @_]];
367	}
368
369	sub register_player_attachment {
370	my $name = shift;
371
372	$attachment{$name} = [[KLASS_PLAYER, @_]];
373	}
374
375	sub register_map_attachment {
376	my $name = shift;
377
378	$attachment{$name} = [[KLASS_MAP, @_]];
379	}
380
381	our $override;
382	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
383
384	sub override {
385	$override = 1;
386	@invoke_results = ();
387	}
388
389	sub do_invoke {
390	my $event = shift;
391	my $callbacks = shift;
392
393	@invoke_results = ();
394
395	local $override;
396
397	for (@$callbacks) {
398	eval { &{$_->[1]} };
399
400	if ($@) {
401	warn "$@";
402	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
403	override;
404	}
405
406	return 1 if $override;
407	}
408
409	0	317	}
410	}
411		318
412	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	319	=item $attachable->valid
413
414	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
415
416	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
417
418	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
419
420	Generate a global/object/player/map-specific event with the given arguments.
421
422	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
423	removed in future versions), and there is no public API to access override
424	results (if you must, access C<@cf::invoke_results> directly).
425
426	=back
427
428	=cut
429
430	#############################################################################
431
432	=head2 METHODS VALID FOR ALL CORE OBJECTS
433
434	=over 4
435
436	=item $object->valid, $player->valid, $map->valid
437		320
438	Just because you have a perl object does not mean that the corresponding	321	Just because you have a perl object does not mean that the corresponding
439	C-level object still exists. If you try to access an object that has no	322	C-level object still exists. If you try to access an object that has no
440	valid C counterpart anymore you get an exception at runtime. This method	323	valid C counterpart anymore you get an exception at runtime. This method
441	can be used to test for existence of the C object part without causing an	324	can be used to test for existence of the C object part without causing an
442	exception.	325	exception.
443		326
		327	=cut
		328
		329	# the following variables are defined in .xs and must not be re-created
		330	our @CB_GLOBAL = (); # registry for all global events
		331	our @CB_ATTACHABLE = (); # registry for all attachables
		332	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		333	our @CB_PLAYER = ();
		334	our @CB_CLIENT = ();
		335	our @CB_TYPE = (); # registry for type (cf-object class) based events
		336	our @CB_MAP = ();
		337
		338	my %attachment;
		339
		340	sub _attach_cb($$$$) {
		341	my ($registry, $event, $prio, $cb) = @_;
		342
		343	use sort 'stable';
		344
		345	$cb = [$prio, $cb];
		346
		347	@{$registry->[$event]} = sort
		348	{ $a->[0] cmp $b->[0] }
		349	@{$registry->[$event] || []}, $cb;
		350	}
		351
		352	# hack
		353	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		354
		355	# attach handles attaching event callbacks
		356	# the only thing the caller has to do is pass the correct
		357	# registry (== where the callback attaches to).
		358	sub _attach {
		359	my ($registry, $klass, @arg) = @_;
		360
		361	my $object_type;
		362	my $prio = 0;
		363	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		364
		365	#TODO: get rid of this hack
		366	if ($attachable_klass{$klass}) {
		367	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		368	}
		369
		370	while (@arg) {
		371	my $type = shift @arg;
		372
		373	if ($type eq "prio") {
		374	$prio = shift @arg;
		375
		376	} elsif ($type eq "type") {
		377	$object_type = shift @arg;
		378	$registry = $CB_TYPE[$object_type] ||= [];
		379
		380	} elsif ($type eq "subtype") {
		381	defined $object_type or Carp::croak "subtype specified without type";
		382	my $object_subtype = shift @arg;
		383	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		384
		385	} elsif ($type eq "package") {
		386	my $pkg = shift @arg;
		387
		388	while (my ($name, $id) = each %cb_id) {
		389	if (my $cb = $pkg->can ($name)) {
		390	_attach_cb $registry, $id, $prio, $cb;
		391	}
		392	}
		393
		394	} elsif (exists $cb_id{$type}) {
		395	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		396
		397	} elsif (ref $type) {
		398	warn "attaching objects not supported, ignoring.\n";
		399
		400	} else {
		401	shift @arg;
		402	warn "attach argument '$type' not supported, ignoring.\n";
		403	}
		404	}
		405	}
		406
		407	sub _object_attach {
		408	my ($obj, $name, %arg) = @_;
		409
		410	return if exists $obj->{_attachment}{$name};
		411
		412	if (my $attach = $attachment{$name}) {
		413	my $registry = $obj->registry;
		414
		415	for (@$attach) {
		416	my ($klass, @attach) = @$_;
		417	_attach $registry, $klass, @attach;
		418	}
		419
		420	$obj->{$name} = \%arg;
		421	} else {
		422	warn "object uses attachment '$name' that is not available, postponing.\n";
		423	}
		424
		425	$obj->{_attachment}{$name} = undef;
		426	}
		427
		428	sub cf::attachable::attach {
		429	if (ref $_[0]) {
		430	_object_attach @_;
		431	} else {
		432	_attach shift->_attach_registry, @_;
		433	}
		434	};
		435
		436	# all those should be optimised
		437	sub cf::attachable::detach {
		438	my ($obj, $name) = @_;
		439
		440	if (ref $obj) {
		441	delete $obj->{_attachment}{$name};
		442	reattach ($obj);
		443	} else {
		444	Carp::croak "cannot, currently, detach class attachments";
		445	}
		446	};
		447
		448	sub cf::attachable::attached {
		449	my ($obj, $name) = @_;
		450
		451	exists $obj->{_attachment}{$name}
		452	}
		453
		454	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		455	eval "#line " . __LINE__ . " 'cf.pm'
		456	sub cf::\L$klass\E::_attach_registry {
		457	(\\\@CB_$klass, KLASS_$klass)
		458	}
		459
		460	sub cf::\L$klass\E::attachment {
		461	my \$name = shift;
		462
		463	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		464	}
		465	";
		466	die if $@;
		467	}
		468
		469	our $override;
		470	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		471
		472	sub override {
		473	$override = 1;
		474	@invoke_results = ();
		475	}
		476
		477	sub do_invoke {
		478	my $event = shift;
		479	my $callbacks = shift;
		480
		481	@invoke_results = ();
		482
		483	local $override;
		484
		485	for (@$callbacks) {
		486	eval { &{$_->[1]} };
		487
		488	if ($@) {
		489	warn "$@";
		490	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		491	override;
		492	}
		493
		494	return 1 if $override;
		495	}
		496
		497	0
		498	}
		499
		500	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		501
		502	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		503
		504	Generate an object-specific event with the given arguments.
		505
		506	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		507	removed in future versions), and there is no public API to access override
		508	results (if you must, access C<@cf::invoke_results> directly).
		509
444	=back	510	=back
445		511
446	=cut	512	=cut
447
448	*cf::object::valid =
449	*cf::player::valid =
450	*cf::map::valid = \&cf::_valid;
451		513
452	#############################################################################	514	#############################################################################
453	# object support	515	# object support
454		516
455	sub instantiate {
456	my ($obj, $data) = @_;
457
458	$data = from_json $data;
459
460	for (@$data) {
461	my ($name, $args) = @$_;
462
463	$obj->attach ($name, %{$args || {} });
464	}
465	}
466
467	# basically do the same as instantiate, without calling instantiate
468	sub reattach {	517	sub reattach {
		518	# basically do the same as instantiate, without calling instantiate
469	my ($obj) = @_;	519	my ($obj) = @_;
		520
470	my $registry = $obj->registry;	521	my $registry = $obj->registry;
471		522
472	@$registry = ();	523	@$registry = ();
473		524
474	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	525	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
475		526
476	for my $name (keys %{ $obj->{_attachment} || {} }) {	527	for my $name (keys %{ $obj->{_attachment} || {} }) {
477	if (my $attach = $attachment{$name}) {	528	if (my $attach = $attachment{$name}) {
478	for (@$attach) {	529	for (@$attach) {
479	my ($klass, @attach) = @$_;	530	my ($klass, @attach) = @$_;
480	_attach @$registry, $klass, @attach;	531	_attach $registry, $klass, @attach;
481	}	532	}
482	} else {	533	} else {
483	warn "object uses attachment '$name' that is not available, postponing.\n";	534	warn "object uses attachment '$name' that is not available, postponing.\n";
484	}	535	}
485	}	536	}
486	}	537	}
		538
		539	cf::attachable->attach (
		540	prio => -1000000,
		541	on_instantiate => sub {
		542	my ($obj, $data) = @_;
		543
		544	$data = from_json $data;
		545
		546	for (@$data) {
		547	my ($name, $args) = @$_;
		548
		549	$obj->attach ($name, %{$args || {} });
		550	}
		551	},
		552	on_reattach => \&reattach,
		553	on_clone => sub {
		554	my ($src, $dst) = @_;
		555
		556	@{$dst->registry} = @{$src->registry};
		557
		558	%$dst = %$src;
		559
		560	%{$dst->{_attachment}} = %{$src->{_attachment}}
		561	if exists $src->{_attachment};
		562	},
		563	);
487		564
488	sub object_freezer_save {	565	sub object_freezer_save {
489	my ($filename, $rdata, $objs) = @_;	566	my ($filename, $rdata, $objs) = @_;
490		567
491	if (length $$rdata) {	568	if (length $$rdata) {
…		…
514	unlink $filename;	591	unlink $filename;
515	unlink "$filename.pst";	592	unlink "$filename.pst";
516	}	593	}
517	}	594	}
518		595
		596	sub object_freezer_as_string {
		597	my ($rdata, $objs) = @_;
		598
		599	use Data::Dumper;
		600
		601	$$rdata . Dumper $objs
		602	}
		603
519	sub object_thawer_load {	604	sub object_thawer_load {
520	my ($filename) = @_;	605	my ($filename) = @_;
521		606
522	local $/;	607	local $/;
523		608
…		…
533	}	618	}
534		619
535	()	620	()
536	}	621	}
537		622
538	attach_to_objects
539	prio => -1000000,
540	on_clone => sub {
541	my ($src, $dst) = @_;
542
543	@{$dst->registry} = @{$src->registry};
544
545	%$dst = %$src;
546
547	%{$dst->{_attachment}} = %{$src->{_attachment}}
548	if exists $src->{_attachment};
549	},
550	;
551
552	#############################################################################	623	#############################################################################
553	# old plug-in events	624	# command handling &c
554		625
555	sub inject_event {	626	=item cf::register_command $name => \&callback($ob,$args);
556	my $extension = shift;
557	my $event_code = shift;
558		627
559	my $cb = $hook[$event_code]{$extension}	628	Register a callback for execution when the client sends the user command
560	or return;	629	$name.
561		630
562	&$cb	631	=cut
563	}
564
565	sub inject_global_event {
566	my $event = shift;
567
568	my $cb = $hook[$event]
569	or return;
570
571	List::Util::max map &$_, values %$cb
572	}
573
574	sub inject_command {
575	my ($name, $obj, $params) = @_;
576
577	for my $cmd (@{ $command{$name} }) {
578	$cmd->[1]->($obj, $params);
579	}
580
581	-1
582	}
583		632
584	sub register_command {	633	sub register_command {
585	my ($name, $time, $cb) = @_;	634	my ($name, $cb) = @_;
586		635
587	my $caller = caller;	636	my $caller = caller;
588	#warn "registering command '$name/$time' to '$caller'";	637	#warn "registering command '$name/$time' to '$caller'";
589		638
590	push @{ $command{$name} }, [$time, $cb, $caller];	639	push @{ $COMMAND{$name} }, [$caller, $cb];
591	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
592	}	640	}
		641
		642	=item cf::register_extcmd $name => \&callback($pl,$packet);
		643
		644	Register a callbackf ro execution when the client sends an extcmd packet.
		645
		646	If the callback returns something, it is sent back as if reply was being
		647	called.
		648
		649	=cut
593		650
594	sub register_extcmd {	651	sub register_extcmd {
595	my ($name, $cb) = @_;	652	my ($name, $cb) = @_;
596		653
597	my $caller = caller;	654	my $caller = caller;
598	#warn "registering extcmd '$name' to '$caller'";	655	#warn "registering extcmd '$name' to '$caller'";
599		656
600	$extcmd{$name} = [$cb, $caller];	657	$EXTCMD{$name} = [$cb, $caller];
601	}	658	}
		659
		660	cf::player->attach (
		661	on_command => sub {
		662	my ($pl, $name, $params) = @_;
		663
		664	my $cb = $COMMAND{$name}
		665	or return;
		666
		667	for my $cmd (@$cb) {
		668	$cmd->[1]->($pl->ob, $params);
		669	}
		670
		671	cf::override;
		672	},
		673	on_extcmd => sub {
		674	my ($pl, $buf) = @_;
		675
		676	my $msg = eval { from_json $buf };
		677
		678	if (ref $msg) {
		679	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		680	if (my %reply = $cb->[0]->($pl, $msg)) {
		681	$pl->ext_reply ($msg->{msgid}, %reply);
		682	}
		683	}
		684	} else {
		685	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		686	}
		687
		688	cf::override;
		689	},
		690	);
602		691
603	sub register {	692	sub register {
604	my ($base, $pkg) = @_;	693	my ($base, $pkg) = @_;
605		694
606	#TODO	695	#TODO
…		…
625	. "#line 1 \"$path\"\n{\n"	714	. "#line 1 \"$path\"\n{\n"
626	. (do { local $/; <$fh> })	715	. (do { local $/; <$fh> })
627	. "\n};\n1";	716	. "\n};\n1";
628		717
629	eval $source	718	eval $source
630	or die "$path: $@";	719	or die $@ ? "$path: $@\n"
		720	: "extension disabled.\n";
631		721
632	push @exts, $pkg;	722	push @exts, $pkg;
633	$ext_pkg{$base} = $pkg;	723	$ext_pkg{$base} = $pkg;
634		724
635	# no strict 'refs';	725	# no strict 'refs';
…		…
648	# for my $idx (0 .. $#PLUGIN_EVENT) {	738	# for my $idx (0 .. $#PLUGIN_EVENT) {
649	# delete $hook[$idx]{$pkg};	739	# delete $hook[$idx]{$pkg};
650	# }	740	# }
651		741
652	# remove commands	742	# remove commands
653	for my $name (keys %command) {	743	for my $name (keys %COMMAND) {
654	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	744	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
655		745
656	if (@cb) {	746	if (@cb) {
657	$command{$name} = \@cb;	747	$COMMAND{$name} = \@cb;
658	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
659	} else {	748	} else {
660	delete $command{$name};
661	delete $COMMAND{"$name\000"};	749	delete $COMMAND{$name};
662	}	750	}
663	}	751	}
664		752
665	# remove extcmds	753	# remove extcmds
666	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	754	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
667	delete $extcmd{$name};	755	delete $EXTCMD{$name};
668	}	756	}
669		757
670	if (my $cb = $pkg->can ("unload")) {	758	if (my $cb = $pkg->can ("unload")) {
671	eval {	759	eval {
672	$cb->($pkg);	760	$cb->($pkg);
…		…
676		764
677	Symbol::delete_package $pkg;	765	Symbol::delete_package $pkg;
678	}	766	}
679		767
680	sub load_extensions {	768	sub load_extensions {
681	my $LIBDIR = maps_directory "perl";
682
683	for my $ext (<$LIBDIR/*.ext>) {	769	for my $ext (<$LIBDIR/*.ext>) {
684	next unless -r $ext;	770	next unless -r $ext;
685	eval {	771	eval {
686	load_extension $ext;	772	load_extension $ext;
687	1	773	1
688	} or warn "$ext not loaded: $@";	774	} or warn "$ext not loaded: $@";
689	}	775	}
690	}	776	}
691		777
692	#############################################################################	778	#############################################################################
693	# extcmd framework, basically convert ext <msg>
694	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
695
696	attach_to_players
697	on_extcmd => sub {
698	my ($pl, $buf) = @_;
699
700	my $msg = eval { from_json $buf };
701
702	if (ref $msg) {
703	if (my $cb = $extcmd{$msg->{msgtype}}) {
704	if (my %reply = $cb->[0]->($pl, $msg)) {
705	$pl->ext_reply ($msg->{msgid}, %reply);
706	}
707	}
708	} else {
709	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
710	}
711
712	cf::override;
713	},
714	;
715
716	#############################################################################
717	# load/save/clean perl data associated with a map	779	# load/save/clean perl data associated with a map
718		780
719	*cf::mapsupport::on_clean = sub {	781	*cf::mapsupport::on_clean = sub {
720	my ($map) = @_;	782	my ($map) = @_;
721		783
…		…
723	defined $path or return;	785	defined $path or return;
724		786
725	unlink "$path.pst";	787	unlink "$path.pst";
726	};	788	};
727		789
728	attach_to_maps prio => -10000, package => cf::mapsupport::;	790	cf::map->attach (prio => -10000, package => cf::mapsupport::);
729		791
730	#############################################################################	792	#############################################################################
731	# load/save perl data associated with player->ob objects	793	# load/save perl data associated with player->ob objects
732		794
733	sub all_objects(@) {	795	sub all_objects(@) {
734	@_, map all_objects ($_->inv), @_	796	@_, map all_objects ($_->inv), @_
735	}	797	}
736		798
737	# TODO: compatibility cruft, remove when no longer needed	799	# TODO: compatibility cruft, remove when no longer needed
738	attach_to_players	800	cf::player->attach (
739	on_load => sub {	801	on_load => sub {
740	my ($pl, $path) = @_;	802	my ($pl, $path) = @_;
741		803
742	for my $o (all_objects $pl->ob) {	804	for my $o (all_objects $pl->ob) {
743	if (my $value = $o->get_ob_key_value ("_perl_data")) {	805	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
745		807
746	%$o = %{ Storable::thaw pack "H*", $value };	808	%$o = %{ Storable::thaw pack "H*", $value };
747	}	809	}
748	}	810	}
749	},	811	},
750	;	812	);
751		813
752	#############################################################################	814	#############################################################################
753		815
754	=head2 CORE EXTENSIONS	816	=head2 CORE EXTENSIONS
755		817
756	Functions and methods that extend core crossfire objects.	818	Functions and methods that extend core crossfire objects.
		819
		820	=head3 cf::player
757		821
758	=over 4	822	=over 4
759		823
760	=item cf::player::exists $login	824	=item cf::player::exists $login
761		825
…		…
766	sub cf::player::exists($) {	830	sub cf::player::exists($) {
767	cf::player::find $_[0]	831	cf::player::find $_[0]
768	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	832	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
769	}	833	}
770		834
		835	=item $player->ext_reply ($msgid, $msgtype, %msg)
		836
		837	Sends an ext reply to the player.
		838
		839	=cut
		840
		841	sub cf::player::ext_reply($$$%) {
		842	my ($self, $id, %msg) = @_;
		843
		844	$msg{msgid} = $id;
		845
		846	$self->send ("ext " . to_json \%msg);
		847	}
		848
		849	=back
		850
		851	=head3 cf::object::player
		852
		853	=over 4
		854
771	=item $player->reply ($npc, $msg[, $flags])	855	=item $player_object->reply ($npc, $msg[, $flags])
772		856
773	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	857	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
774	can be C<undef>. Does the right thing when the player is currently in a	858	can be C<undef>. Does the right thing when the player is currently in a
775	dialogue with the given NPC character.	859	dialogue with the given NPC character.
776		860
777	=cut	861	=cut
778		862
779	# rough implementation of a future "reply" method that works	863	# rough implementation of a future "reply" method that works
780	# with dialog boxes.	864	# with dialog boxes.
		865	#TODO: the first argument must go, split into a $npc->reply_to ( method
781	sub cf::object::player::reply($$$;$) {	866	sub cf::object::player::reply($$$;$) {
782	my ($self, $npc, $msg, $flags) = @_;	867	my ($self, $npc, $msg, $flags) = @_;
783		868
784	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	869	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
785		870
…		…
789	$msg = $npc->name . " says: $msg" if $npc;	874	$msg = $npc->name . " says: $msg" if $npc;
790	$self->message ($msg, $flags);	875	$self->message ($msg, $flags);
791	}	876	}
792	}	877	}
793		878
794	=item $player->ext_reply ($msgid, $msgtype, %msg)	879	=item $player_object->may ("access")
795		880
796	Sends an ext reply to the player.	881	Returns wether the given player is authorized to access resource "access"
		882	(e.g. "command_wizcast").
797		883
798	=cut	884	=cut
799		885
800	sub cf::player::ext_reply($$$%) {	886	sub cf::object::player::may {
		887	my ($self, $access) = @_;
		888
		889	$self->flag (cf::FLAG_WIZ) ||
		890	(ref $cf::CFG{"may_$access"}
		891	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		892	: $cf::CFG{"may_$access"})
		893	}
		894
		895	=head3 cf::client
		896
		897	=over 4
		898
		899	=item $client->send_drawinfo ($text, $flags)
		900
		901	Sends a drawinfo packet to the client. Circumvents output buffering so
		902	should not be used under normal circumstances.
		903
		904	=cut
		905
		906	sub cf::client::send_drawinfo {
		907	my ($self, $text, $flags) = @_;
		908
		909	utf8::encode $text;
		910	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		911	}
		912
		913
		914	=item $success = $client->query ($flags, "text", \&cb)
		915
		916	Queues a query to the client, calling the given callback with
		917	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		918	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		919
		920	Queries can fail, so check the return code. Or don't, as queries will become
		921	reliable at some point in the future.
		922
		923	=cut
		924
		925	sub cf::client::query {
		926	my ($self, $flags, $text, $cb) = @_;
		927
		928	return unless $self->state == ST_PLAYING
		929	|| $self->state == ST_SETUP
		930	|| $self->state == ST_CUSTOM;
		931
		932	$self->state (ST_CUSTOM);
		933
		934	utf8::encode $text;
		935	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		936
		937	$self->send_packet ($self->{query_queue}[0][0])
		938	if @{ $self->{query_queue} } == 1;
		939	}
		940
		941	cf::client->attach (
		942	on_reply => sub {
		943	my ($ns, $msg) = @_;
		944
		945	# this weird shuffling is so that direct followup queries
		946	# get handled first
		947	my $queue = delete $ns->{query_queue};
		948
		949	(shift @$queue)->[1]->($msg);
		950
		951	push @{ $ns->{query_queue} }, @$queue;
		952
		953	if (@{ $ns->{query_queue} } == @$queue) {
		954	if (@$queue) {
		955	$ns->send_packet ($ns->{query_queue}[0][0]);
		956	} else {
		957	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		958	}
		959	}
		960	},
		961	);
		962
		963	=item $client->coro (\&cb)
		964
		965	Create a new coroutine, running the specified callback. The coroutine will
		966	be automatically cancelled when the client gets destroyed (e.g. on logout,
		967	or loss of connection).
		968
		969	=cut
		970
		971	sub cf::client::coro {
801	my ($self, $id, %msg) = @_;	972	my ($self, $cb) = @_;
802		973
803	$msg{msgid} = $id;	974	my $coro; $coro = async {
		975	eval {
		976	$cb->();
		977	};
		978	warn $@ if $@;
		979	};
804		980
805	$self->send ("ext " . to_json \%msg);	981	$coro->on_destroy (sub {
		982	delete $self->{_coro}{$coro+0};
		983	});
		984
		985	$self->{_coro}{$coro+0} = $coro;
		986
		987	$coro
806	}	988	}
		989
		990	cf::client->attach (
		991	on_destroy => sub {
		992	my ($ns) = @_;
		993
		994	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		995	},
		996	);
807		997
808	=back	998	=back
809		999
810	=cut
811
812	#############################################################################
813		1000
814	=head2 SAFE SCRIPTING	1001	=head2 SAFE SCRIPTING
815		1002
816	Functions that provide a safe environment to compile and execute	1003	Functions that provide a safe environment to compile and execute
817	snippets of perl code without them endangering the safety of the server	1004	snippets of perl code without them endangering the safety of the server
818	itself. Looping constructs, I/O operators and other built-in functionality	1005	itself. Looping constructs, I/O operators and other built-in functionality
819	is not available in the safe scripting environment, and the number of	1006	is not available in the safe scripting environment, and the number of
820	functions and methods that cna be called is greatly reduced.	1007	functions and methods that can be called is greatly reduced.
821		1008
822	=cut	1009	=cut
823		1010
824	our $safe = new Safe "safe";	1011	our $safe = new Safe "safe";
825	our $safe_hole = new Safe::Hole;	1012	our $safe_hole = new Safe::Hole;
…		…
832		1019
833	=pod	1020	=pod
834		1021
835	The following fucntions and emthods are available within a safe environment:	1022	The following fucntions and emthods are available within a safe environment:
836		1023
837	cf::object contr pay_amount pay_player	1024	cf::object contr pay_amount pay_player map
838	cf::object::player player	1025	cf::object::player player
839	cf::player peaceful	1026	cf::player peaceful
		1027	cf::map trigger
840		1028
841	=cut	1029	=cut
842		1030
843	for (	1031	for (
844	["cf::object" => qw(contr pay_amount pay_player)],	1032	["cf::object" => qw(contr pay_amount pay_player map)],
845	["cf::object::player" => qw(player)],	1033	["cf::object::player" => qw(player)],
846	["cf::player" => qw(peaceful)],	1034	["cf::player" => qw(peaceful)],
		1035	["cf::map" => qw(trigger)],
847	) {	1036	) {
848	no strict 'refs';	1037	no strict 'refs';
849	my ($pkg, @funs) = @$_;	1038	my ($pkg, @funs) = @$_;
850	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1039	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
851	for @funs;	1040	for @funs;
…		…
961		1150
962	Immediately write the database to disk I<if it is dirty>.	1151	Immediately write the database to disk I<if it is dirty>.
963		1152
964	=cut	1153	=cut
965		1154
		1155	our $DB;
		1156
966	{	1157	{
967	my $db;
968	my $path = cf::localdir . "/database.pst";	1158	my $path = cf::localdir . "/database.pst";
969		1159
970	sub db_load() {	1160	sub db_load() {
971	warn "loading database $path\n";#d# remove later	1161	warn "loading database $path\n";#d# remove later
972	$db = stat $path ? Storable::retrieve $path : { };	1162	$DB = stat $path ? Storable::retrieve $path : { };
973	}	1163	}
974		1164
975	my $pid;	1165	my $pid;
976		1166
977	sub db_save() {	1167	sub db_save() {
978	warn "saving database $path\n";#d# remove later	1168	warn "saving database $path\n";#d# remove later
979	waitpid $pid, 0 if $pid;	1169	waitpid $pid, 0 if $pid;
980	if (0 == ($pid = fork)) {	1170	if (0 == ($pid = fork)) {
981	$db->{_meta}{version} = 1;	1171	$DB->{_meta}{version} = 1;
982	Storable::nstore $db, "$path~";	1172	Storable::nstore $DB, "$path~";
983	rename "$path~", $path;	1173	rename "$path~", $path;
984	cf::_exit 0 if defined $pid;	1174	cf::_exit 0 if defined $pid;
985	}	1175	}
986	}	1176	}
987		1177
…		…
990	sub db_sync() {	1180	sub db_sync() {
991	db_save if $dirty;	1181	db_save if $dirty;
992	undef $dirty;	1182	undef $dirty;
993	}	1183	}
994		1184
995	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1185	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
996	db_sync;	1186	db_sync;
997	});	1187	});
998		1188
999	sub db_dirty() {	1189	sub db_dirty() {
1000	$dirty = 1;	1190	$dirty = 1;
1001	$idle->start;	1191	$idle->start;
1002	}	1192	}
1003		1193
1004	sub db_get($;$) {	1194	sub db_get($;$) {
1005	@_ >= 2	1195	@_ >= 2
1006	? $db->{$_[0]}{$_[1]}	1196	? $DB->{$_[0]}{$_[1]}
1007	: ($db->{$_[0]} ||= { })	1197	: ($DB->{$_[0]} ||= { })
1008	}	1198	}
1009		1199
1010	sub db_put($$;$) {	1200	sub db_put($$;$) {
1011	if (@_ >= 3) {	1201	if (@_ >= 3) {
1012	$db->{$_[0]}{$_[1]} = $_[2];	1202	$DB->{$_[0]}{$_[1]} = $_[2];
1013	} else {	1203	} else {
1014	$db->{$_[0]} = $_[1];	1204	$DB->{$_[0]} = $_[1];
1015	}	1205	}
1016	db_dirty;	1206	db_dirty;
1017	}	1207	}
1018		1208
1019	attach_global	1209	cf::global->attach (
1020	prio => 10000,	1210	prio => 10000,
1021	on_cleanup => sub {	1211	on_cleanup => sub {
1022	db_sync;	1212	db_sync;
1023	},	1213	},
1024	;	1214	);
1025	}	1215	}
1026		1216
1027	#############################################################################	1217	#############################################################################
1028	# the server's main()	1218	# the server's main()
1029		1219
		1220	sub cfg_load {
		1221	open my $fh, "<:utf8", cf::confdir . "/config"
		1222	or return;
		1223
		1224	local $/;
		1225	*CFG = YAML::Syck::Load <$fh>;
		1226	}
		1227
1030	sub main {	1228	sub main {
		1229	cfg_load;
1031	db_load;	1230	db_load;
1032	load_extensions;	1231	load_extensions;
1033	Event::loop;	1232	Event::loop;
1034	}	1233	}
1035		1234
1036	#############################################################################	1235	#############################################################################
1037	# initialisation	1236	# initialisation
1038		1237
1039	sub _perl_reload(&) {	1238	sub _perl_reload() {
1040	my ($msg) = @_;	1239	warn "reloading...";
1041
1042	$msg->("reloading...");
1043		1240
1044	eval {	1241	eval {
		1242	local $FREEZE = 1;
		1243
		1244	cf::emergency_save;
		1245
1045	# cancel all watchers	1246	# cancel all watchers
1046	$_->cancel for Event::all_watchers;	1247	for (Event::all_watchers) {
		1248	$_->cancel if $_->data & WF_AUTOCANCEL;
		1249	}
		1250
		1251	# cancel all extension coros
		1252	$_->cancel for values %EXT_CORO;
		1253	%EXT_CORO = ();
1047		1254
1048	# unload all extensions	1255	# unload all extensions
1049	for (@exts) {	1256	for (@exts) {
1050	$msg->("unloading <$_>");	1257	warn "unloading <$_>";
1051	unload_extension $_;	1258	unload_extension $_;
1052	}	1259	}
1053		1260
1054	# unload all modules loaded from $LIBDIR	1261	# unload all modules loaded from $LIBDIR
1055	while (my ($k, $v) = each %INC) {	1262	while (my ($k, $v) = each %INC) {
1056	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1263	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1057		1264
1058	$msg->("removing <$k>");	1265	warn "removing <$k>";
1059	delete $INC{$k};	1266	delete $INC{$k};
1060		1267
1061	$k =~ s/\.pm$//;	1268	$k =~ s/\.pm$//;
1062	$k =~ s/\//::/g;	1269	$k =~ s/\//::/g;
1063		1270
…		…
1068	Symbol::delete_package $k;	1275	Symbol::delete_package $k;
1069	}	1276	}
1070		1277
1071	# sync database to disk	1278	# sync database to disk
1072	cf::db_sync;	1279	cf::db_sync;
		1280	IO::AIO::flush;
1073		1281
1074	# get rid of safe::, as good as possible	1282	# get rid of safe::, as good as possible
1075	Symbol::delete_package "safe::$_"	1283	Symbol::delete_package "safe::$_"
1076	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1284	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1077		1285
1078	# remove register_script_function callbacks	1286	# remove register_script_function callbacks
1079	# TODO	1287	# TODO
1080		1288
1081	# unload cf.pm "a bit"	1289	# unload cf.pm "a bit"
…		…
1084	# don't, removes xs symbols, too,	1292	# don't, removes xs symbols, too,
1085	# and global variables created in xs	1293	# and global variables created in xs
1086	#Symbol::delete_package __PACKAGE__;	1294	#Symbol::delete_package __PACKAGE__;
1087		1295
1088	# reload cf.pm	1296	# reload cf.pm
1089	$msg->("reloading cf.pm");	1297	warn "reloading cf.pm";
1090	require cf;	1298	require cf;
		1299	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1091		1300
1092	# load database again	1301	# load config and database again
		1302	cf::cfg_load;
1093	cf::db_load;	1303	cf::db_load;
1094		1304
1095	# load extensions	1305	# load extensions
1096	$msg->("load extensions");	1306	warn "load extensions";
1097	cf::load_extensions;	1307	cf::load_extensions;
1098		1308
1099	# reattach attachments to objects	1309	# reattach attachments to objects
1100	$msg->("reattach");	1310	warn "reattach";
1101	_global_reattach;	1311	_global_reattach;
1102	};	1312	};
1103	$msg->($@) if $@;	1313	warn $@ if $@;
1104		1314
1105	$msg->("reloaded");	1315	warn "reloaded";
1106	};	1316	};
1107		1317
1108	sub perl_reload() {	1318	sub perl_reload() {
1109	_perl_reload {	1319	_perl_reload;
1110	warn $_[0];
1111	print "$_[0]\n";
1112	};
1113	}	1320	}
1114		1321
		1322	register "<global>", __PACKAGE__;
		1323
1115	register_command "perl-reload", 0, sub {	1324	register_command "perl-reload" => sub {
1116	my ($who, $arg) = @_;	1325	my ($who, $arg) = @_;
1117		1326
1118	if ($who->flag (FLAG_WIZ)) {	1327	if ($who->flag (FLAG_WIZ)) {
		1328	$who->message ("reloading...");
1119	_perl_reload {	1329	_perl_reload;
1120	warn $_[0];
1121	$who->message ($_[0]);
1122	};
1123	}	1330	}
1124	};	1331	};
1125		1332
1126	register "<global>", __PACKAGE__;
1127
1128	unshift @INC, $LIBDIR;	1333	unshift @INC, $LIBDIR;
1129		1334
1130	$TICK_WATCHER = Event->timer (	1335	$TICK_WATCHER = Event->timer (
		1336	reentrant => 0,
1131	prio => 1,	1337	prio => 0,
1132	at => $NEXT_TICK || 1,	1338	at => $NEXT_TICK || $TICK,
		1339	data => WF_AUTOCANCEL,
1133	cb => sub {	1340	cb => sub {
		1341	unless ($FREEZE) {
1134	cf::server_tick; # one server iteration	1342	cf::server_tick; # one server iteration
		1343	$RUNTIME += $TICK;
		1344	}
1135		1345
1136	my $NOW = Event::time;
1137	$NEXT_TICK += $TICK;	1346	$NEXT_TICK += $TICK;
1138		1347
1139	# if we are delayed by four ticks, skip them all	1348	# if we are delayed by four ticks or more, skip them all
1140	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1349	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1141		1350
1142	$TICK_WATCHER->at ($NEXT_TICK);	1351	$TICK_WATCHER->at ($NEXT_TICK);
1143	$TICK_WATCHER->start;	1352	$TICK_WATCHER->start;
1144	},	1353	},
1145	);	1354	);
1146		1355
		1356	IO::AIO::max_poll_time $TICK * 0.2;
		1357
		1358	Event->io (fd => IO::AIO::poll_fileno,
		1359	poll => 'r',
		1360	prio => 5,
		1361	data => WF_AUTOCANCEL,
		1362	cb => \&IO::AIO::poll_cb);
		1363
		1364	# we must not ever block the main coroutine
		1365	$Coro::idle = sub {
		1366	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1367	warn "FATAL: Coro::idle was called, major BUG\n";
		1368	(Coro::unblock_sub {
		1369	Event::one_event;
		1370	})->();
		1371	};
		1372
1147	1	1373	1
1148		1374

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