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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.83 by root, Mon Dec 11 01:30:41 2006 UTC vs.
Revision 1.105 by root, Sun Dec 31 17:17:23 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	use Coro::AIO;
		19
		20	use Fcntl;
10	use IO::AIO ();	21	use IO::AIO 2.31 ();
11	use YAML::Syck ();	22	use YAML::Syck ();
12	use Time::HiRes;	23	use Time::HiRes;
13	use Event;	24
14	$Event::Eval = 1; # no idea why this is required, but it is	25	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		26
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	28	$YAML::Syck::ImplicitUnicode = 1;
18		29
19	use strict;	30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
20		31
21	_init_vars;	32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		33
23	our %COMMAND = ();	34	our %COMMAND = ();
		35	our %COMMAND_TIME = ();
		36	our %EXTCMD = ();
		37
24	our @EVENT;	38	our @EVENT;
25	our $LIBDIR = maps_directory "perl";	39	our $LIBDIR = datadir . "/ext";
26		40
27	our $TICK = MAX_TIME * 1e-6;	41	our $TICK = MAX_TIME * 1e-6;
28	our $TICK_WATCHER;	42	our $TICK_WATCHER;
29	our $NEXT_TICK;	43	our $NEXT_TICK;
		44	our $NOW;
30		45
31	our %CFG;	46	our %CFG;
32		47
33	our $uptime;#d#	48	our $UPTIME; $UPTIME ||= time;
34	our $UPTIME;	49	our $RUNTIME;
35	$UPTIME ||= $uptime;#d#	50
36	$UPTIME ||= time;	51	our %MAP; # all maps
		52	our $LINK_MAP; # the special {link} map
		53	our $FREEZE;
		54
		55	binmode STDOUT;
		56	binmode STDERR;
		57
		58	# read virtual server time, if available
		59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		60	open my $fh, "<", cf::localdir . "/runtime"
		61	or die "unable to read runtime file: $!";
		62	$RUNTIME = <$fh> + 0.;
		63	}
		64
		65	mkdir cf::localdir;
		66	mkdir cf::localdir . "/" . cf::playerdir;
		67	mkdir cf::localdir . "/" . cf::tmpdir;
		68	mkdir cf::localdir . "/" . cf::uniquedir;
		69
		70	our %EXT_CORO;
37		71
38	#############################################################################	72	#############################################################################
39		73
40	=head2 GLOBAL VARIABLES	74	=head2 GLOBAL VARIABLES
41		75
42	=over 4	76	=over 4
43		77
44	=item $cf::UPTIME	78	=item $cf::UPTIME
45		79
46	The timestamp of the server start (so not actually an uptime).	80	The timestamp of the server start (so not actually an uptime).
		81
		82	=item $cf::RUNTIME
		83
		84	The time this server has run, starts at 0 and is increased by $cf::TICK on
		85	every server tick.
47		86
48	=item $cf::LIBDIR	87	=item $cf::LIBDIR
49		88
50	The perl library directory, where extensions and cf-specific modules can	89	The perl library directory, where extensions and cf-specific modules can
51	be found. It will be added to C<@INC> automatically.	90	be found. It will be added to C<@INC> automatically.
		91
		92	=item $cf::NOW
		93
		94	The time of the last (current) server tick.
52		95
53	=item $cf::TICK	96	=item $cf::TICK
54		97
55	The interval between server ticks, in seconds.	98	The interval between server ticks, in seconds.
56		99
…		…
64	=cut	107	=cut
65		108
66	BEGIN {	109	BEGIN {
67	*CORE::GLOBAL::warn = sub {	110	*CORE::GLOBAL::warn = sub {
68	my $msg = join "", @_;	111	my $msg = join "", @_;
		112	utf8::encode $msg;
		113
69	$msg .= "\n"	114	$msg .= "\n"
70	unless $msg =~ /\n$/;	115	unless $msg =~ /\n$/;
71		116
72	print STDERR "cfperl: $msg";
73	LOG llevError, "cfperl: $msg";	117	LOG llevError, "cfperl: $msg";
74	};	118	};
75	}	119	}
76		120
		121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
78		127
79	# we bless all objects into (empty) derived classes to force a method lookup	128	# we bless all objects into (empty) derived classes to force a method lookup
80	# within the Safe compartment.	129	# within the Safe compartment.
81	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	130	for my $pkg (qw(
		131	cf::global cf::attachable
		132	cf::object cf::object::player
		133	cf::client cf::player
		134	cf::arch cf::living
		135	cf::map cf::party cf::region
		136	)) {
82	no strict 'refs';	137	no strict 'refs';
83	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
84	}	139	}
85		140
86	$Event::DIED = sub {	141	$Event::DIED = sub {
…		…
88	};	143	};
89		144
90	my %ext_pkg;	145	my %ext_pkg;
91	my @exts;	146	my @exts;
92	my @hook;	147	my @hook;
93	my %command;
94	my %extcmd;
95		148
96	=head2 UTILITY FUNCTIONS	149	=head2 UTILITY FUNCTIONS
97		150
98	=over 4	151	=over 4
99		152
…		…
121	sub to_json($) {	174	sub to_json($) {
122	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
123	JSON::Syck::Dump $_[0]	176	JSON::Syck::Dump $_[0]
124	}	177	}
125		178
		179	# main coro must never ever "block" except in Event
		180	# sync_job ensures this by running the job in a coroutine
		181	# and waiting in Event while the server is otherwise frozen
		182	sub sync_job(&) {
		183	my ($job) = @_;
		184
		185	my $busy = 1;
		186	my @res;
		187
		188	local $FREEZE = 1;
		189
		190	my $coro = Coro::async {
		191	@res = eval { $job->() };
		192	warn $@ if $@;
		193	undef $busy;
		194	};
		195
		196	if ($Coro::current == $Coro::main) {
		197	$coro->prio (Coro::PRIO_MAX);
		198	while ($busy) {
		199	Coro::cede_notself;
		200	Event::one_event unless Coro::nready;
		201	}
		202	} else {
		203	$coro->join;
		204	}
		205
		206	wantarray ? @res : $res[0]
		207	}
		208
		209	=item $coro = cf::coro { BLOCK }
		210
		211	Creates and returns a new coro. This coro is automcatially being canceled
		212	when the extension calling this is being unloaded.
		213
		214	=cut
		215
		216	sub coro(&) {
		217	my $cb = shift;
		218
		219	my $coro; $coro = async {
		220	eval {
		221	$cb->();
		222	};
		223	warn $@ if $@;
		224	};
		225
		226	$coro->on_destroy (sub {
		227	delete $EXT_CORO{$coro+0};
		228	});
		229	$EXT_CORO{$coro+0} = $coro;
		230
		231	$coro
		232	}
		233
126	=back	234	=back
127		235
128	=cut	236	=cut
129		237
130	#############################################################################	238	#############################################################################
131		239
132	=head2 EVENTS AND OBJECT ATTACHMENTS	240	=head2 ATTACHABLE OBJECTS
		241
		242	Many objects in crossfire are so-called attachable objects. That means you can
		243	attach callbacks/event handlers (a collection of which is called an "attachment")
		244	to it. All such attachable objects support the following methods.
		245
		246	In the following description, CLASS can be any of C<global>, C<object>
		247	C<player>, C<client> or C<map> (i.e. the attachable objects in
		248	crossfire+).
133		249
134	=over 4	250	=over 4
135		251
136	=item $object->attach ($attachment, key => $value...)
137
138	=item $object->detach ($attachment)
139
140	Attach/detach a pre-registered attachment to an object.
141
142	=item $player->attach ($attachment, key => $value...)
143
144	=item $player->detach ($attachment)
145
146	Attach/detach a pre-registered attachment to a player.
147
148	=item $map->attach ($attachment, key => $value...)	252	=item $attachable->attach ($attachment, key => $value...)
149		253
150	=item $map->detach ($attachment)	254	=item $attachable->detach ($attachment)
151		255
152	Attach/detach a pre-registered attachment to a map.	256	Attach/detach a pre-registered attachment to a specific object and give it
		257	the specified key/value pairs as arguments.
153		258
154	=item $bool = $object->attached ($name)	259	Example, attach a minesweeper attachment to the given object, making it a
		260	10x10 minesweeper game:
155		261
156	=item $bool = $player->attached ($name)	262	$obj->attach (minesweeper => width => 10, height => 10);
157		263
158	=item $bool = $map->attached ($name)	264	=item $bool = $attachable->attached ($name)
159		265
160	Checks wether the named attachment is currently attached to the object.	266	Checks wether the named attachment is currently attached to the object.
161		267
162	=item cf::attach_global ...	268	=item cf::CLASS->attach ...
163		269
164	Attach handlers for global events.	270	=item cf::CLASS->detach ...
165		271
166	This and all following C<attach_*>-functions expect any number of the	272	Define an anonymous attachment and attach it to all objects of the given
167	following handler/hook descriptions:	273	CLASS. See the next function for an explanation of its arguments.
		274
		275	You can attach to global events by using the C<cf::global> class.
		276
		277	Example, log all player logins:
		278
		279	cf::player->attach (
		280	on_login => sub {
		281	my ($pl) = @_;
		282	...
		283	},
		284	);
		285
		286	Example, attach to the jeweler skill:
		287
		288	cf::object->attach (
		289	type => cf::SKILL,
		290	subtype => cf::SK_JEWELER,
		291	on_use_skill => sub {
		292	my ($sk, $ob, $part, $dir, $msg) = @_;
		293	...
		294	},
		295	);
		296
		297	=item cf::CLASS::attachment $name, ...
		298
		299	Register an attachment by C<$name> through which attachable objects of the
		300	given CLASS can refer to this attachment.
		301
		302	Some classes such as crossfire maps and objects can specify attachments
		303	that are attached at load/instantiate time, thus the need for a name.
		304
		305	These calls expect any number of the following handler/hook descriptions:
168		306
169	=over 4	307	=over 4
170		308
171	=item prio => $number	309	=item prio => $number
172		310
…		…
174	by another C<prio> setting). Lower priority handlers get executed	312	by another C<prio> setting). Lower priority handlers get executed
175	earlier. The default priority is C<0>, and many built-in handlers are	313	earlier. The default priority is C<0>, and many built-in handlers are
176	registered at priority C<-1000>, so lower priorities should not be used	314	registered at priority C<-1000>, so lower priorities should not be used
177	unless you know what you are doing.	315	unless you know what you are doing.
178		316
		317	=item type => $type
		318
		319	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		320	given type of objects only (the additional parameter C<subtype> can be
		321	used to further limit to the given subtype).
		322
179	=item on_I<event> => \&cb	323	=item on_I<event> => \&cb
180		324
181	Call the given code reference whenever the named event happens (event is	325	Call the given code reference whenever the named event happens (event is
182	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	326	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
183	handlers are recognised generally depends on the type of object these	327	handlers are recognised generally depends on the type of object these
…		…
192	package and register them. Only handlers for eevents supported by the	336	package and register them. Only handlers for eevents supported by the
193	object/class are recognised.	337	object/class are recognised.
194		338
195	=back	339	=back
196		340
197	=item cf::attach_to_type $object_type, $subtype, ...	341	Example, define an attachment called "sockpuppet" that calls the given
		342	event handler when a monster attacks:
198		343
199	Attach handlers for a specific object type (e.g. TRANSPORT) and	344	cf::object::attachment sockpuppet =>
200	subtype. If C<$subtype> is zero or undef, matches all objects of the given	345	on_skill_attack => sub {
201	type.	346	my ($self, $victim) = @_;
202		347	...
203	=item cf::attach_to_objects ...
204
205	Attach handlers to all objects. Do not use this except for debugging or
206	very rare events, as handlers are (obviously) called for I<all> objects in
207	the game.
208
209	=item cf::attach_to_players ...
210
211	Attach handlers to all players.
212
213	=item cf::attach_to_maps ...
214
215	Attach handlers to all maps.
216
217	=item cf:register_attachment $name, ...
218
219	Register an attachment by name through which objects can refer to this
220	attachment.
221
222	=item cf:register_player_attachment $name, ...
223
224	Register an attachment by name through which players can refer to this
225	attachment.
226
227	=item cf:register_map_attachment $name, ...
228
229	Register an attachment by name through which maps can refer to this
230	attachment.
231
232	=cut
233
234	# the following variables are defined in .xs and must not be re-created
235	our @CB_GLOBAL = (); # registry for all global events
236	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
237	our @CB_PLAYER = ();
238	our @CB_TYPE = (); # registry for type (cf-object class) based events
239	our @CB_MAP = ();
240
241	my %attachment;
242
243	sub _attach_cb($\%$$$) {
244	my ($registry, $undo, $event, $prio, $cb) = @_;
245
246	use sort 'stable';
247
248	$cb = [$prio, $cb];
249
250	@{$registry->[$event]} = sort
251	{ $a->[0] cmp $b->[0] }
252	@{$registry->[$event] || []}, $cb;
253
254	push @{$undo->{cb}}, [$event, $cb];
255	}
256
257	# attach handles attaching event callbacks
258	# the only thing the caller has to do is pass the correct
259	# registry (== where the callback attaches to).
260	sub _attach(\@$@) {
261	my ($registry, $klass, @arg) = @_;
262
263	my $prio = 0;
264
265	my %undo = (
266	registry => $registry,
267	cb => [],
268	);
269
270	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
271
272	while (@arg) {
273	my $type = shift @arg;
274
275	if ($type eq "prio") {
276	$prio = shift @arg;
277
278	} elsif ($type eq "package") {
279	my $pkg = shift @arg;
280
281	while (my ($name, $id) = each %cb_id) {
282	if (my $cb = $pkg->can ($name)) {
283	_attach_cb $registry, %undo, $id, $prio, $cb;
284	}
285	}	348	}
286
287	} elsif (exists $cb_id{$type}) {
288	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
289
290	} elsif (ref $type) {
291	warn "attaching objects not supported, ignoring.\n";
292
293	} else {
294	shift @arg;
295	warn "attach argument '$type' not supported, ignoring.\n";
296	}
297	}
298
299	\%undo
300	}
301
302	sub _attach_attachment {
303	my ($obj, $name, %arg) = @_;
304
305	return if exists $obj->{_attachment}{$name};
306
307	my $res;
308
309	if (my $attach = $attachment{$name}) {
310	my $registry = $obj->registry;
311
312	for (@$attach) {
313	my ($klass, @attach) = @$_;
314	$res = _attach @$registry, $klass, @attach;
315	}
316
317	$obj->{$name} = \%arg;
318	} else {
319	warn "object uses attachment '$name' that is not available, postponing.\n";
320	}
321
322	$obj->{_attachment}{$name} = undef;
323
324	$res->{attachment} = $name;
325	$res
326	}
327
328	*cf::object::attach =
329	*cf::player::attach =
330	*cf::map::attach = sub {
331	my ($obj, $name, %arg) = @_;
332
333	_attach_attachment $obj, $name, %arg;
334	};
335
336	# all those should be optimised
337	*cf::object::detach =
338	*cf::player::detach =
339	*cf::map::detach = sub {
340	my ($obj, $name) = @_;
341
342	delete $obj->{_attachment}{$name};
343	reattach ($obj);
344	};
345
346	*cf::object::attached =
347	*cf::player::attached =
348	*cf::map::attached = sub {
349	my ($obj, $name) = @_;
350
351	exists $obj->{_attachment}{$name}
352	};
353
354	sub attach_global {
355	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
356	}
357
358	sub attach_to_type {
359	my $type = shift;
360	my $subtype = shift;
361
362	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
363	}
364
365	sub attach_to_objects {
366	_attach @CB_OBJECT, KLASS_OBJECT, @_
367	}
368
369	sub attach_to_players {
370	_attach @CB_PLAYER, KLASS_PLAYER, @_
371	}
372
373	sub attach_to_maps {
374	_attach @CB_MAP, KLASS_MAP, @_
375	}
376
377	sub register_attachment {
378	my $name = shift;
379
380	$attachment{$name} = [[KLASS_OBJECT, @_]];
381	}
382
383	sub register_player_attachment {
384	my $name = shift;
385
386	$attachment{$name} = [[KLASS_PLAYER, @_]];
387	}
388
389	sub register_map_attachment {
390	my $name = shift;
391
392	$attachment{$name} = [[KLASS_MAP, @_]];
393	}
394
395	our $override;
396	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
397
398	sub override {
399	$override = 1;
400	@invoke_results = ();
401	}
402
403	sub do_invoke {
404	my $event = shift;
405	my $callbacks = shift;
406
407	@invoke_results = ();
408
409	local $override;
410
411	for (@$callbacks) {
412	eval { &{$_->[1]} };
413
414	if ($@) {
415	warn "$@";
416	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
417	override;
418	}
419
420	return 1 if $override;
421	}
422
423	0	349	}
424	}
425		350
426	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	351	=item $attachable->valid
427
428	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
429
430	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
431
432	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
433
434	Generate a global/object/player/map-specific event with the given arguments.
435
436	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
437	removed in future versions), and there is no public API to access override
438	results (if you must, access C<@cf::invoke_results> directly).
439
440	=back
441
442	=cut
443
444	#############################################################################
445
446	=head2 METHODS VALID FOR ALL CORE OBJECTS
447
448	=over 4
449
450	=item $object->valid, $player->valid, $map->valid
451		352
452	Just because you have a perl object does not mean that the corresponding	353	Just because you have a perl object does not mean that the corresponding
453	C-level object still exists. If you try to access an object that has no	354	C-level object still exists. If you try to access an object that has no
454	valid C counterpart anymore you get an exception at runtime. This method	355	valid C counterpart anymore you get an exception at runtime. This method
455	can be used to test for existence of the C object part without causing an	356	can be used to test for existence of the C object part without causing an
456	exception.	357	exception.
457		358
		359	=cut
		360
		361	# the following variables are defined in .xs and must not be re-created
		362	our @CB_GLOBAL = (); # registry for all global events
		363	our @CB_ATTACHABLE = (); # registry for all attachables
		364	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		365	our @CB_PLAYER = ();
		366	our @CB_CLIENT = ();
		367	our @CB_TYPE = (); # registry for type (cf-object class) based events
		368	our @CB_MAP = ();
		369
		370	my %attachment;
		371
		372	sub _attach_cb($$$$) {
		373	my ($registry, $event, $prio, $cb) = @_;
		374
		375	use sort 'stable';
		376
		377	$cb = [$prio, $cb];
		378
		379	@{$registry->[$event]} = sort
		380	{ $a->[0] cmp $b->[0] }
		381	@{$registry->[$event] || []}, $cb;
		382	}
		383
		384	# hack
		385	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		386
		387	# attach handles attaching event callbacks
		388	# the only thing the caller has to do is pass the correct
		389	# registry (== where the callback attaches to).
		390	sub _attach {
		391	my ($registry, $klass, @arg) = @_;
		392
		393	my $object_type;
		394	my $prio = 0;
		395	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		396
		397	#TODO: get rid of this hack
		398	if ($attachable_klass{$klass}) {
		399	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		400	}
		401
		402	while (@arg) {
		403	my $type = shift @arg;
		404
		405	if ($type eq "prio") {
		406	$prio = shift @arg;
		407
		408	} elsif ($type eq "type") {
		409	$object_type = shift @arg;
		410	$registry = $CB_TYPE[$object_type] ||= [];
		411
		412	} elsif ($type eq "subtype") {
		413	defined $object_type or Carp::croak "subtype specified without type";
		414	my $object_subtype = shift @arg;
		415	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		416
		417	} elsif ($type eq "package") {
		418	my $pkg = shift @arg;
		419
		420	while (my ($name, $id) = each %cb_id) {
		421	if (my $cb = $pkg->can ($name)) {
		422	_attach_cb $registry, $id, $prio, $cb;
		423	}
		424	}
		425
		426	} elsif (exists $cb_id{$type}) {
		427	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		428
		429	} elsif (ref $type) {
		430	warn "attaching objects not supported, ignoring.\n";
		431
		432	} else {
		433	shift @arg;
		434	warn "attach argument '$type' not supported, ignoring.\n";
		435	}
		436	}
		437	}
		438
		439	sub _object_attach {
		440	my ($obj, $name, %arg) = @_;
		441
		442	return if exists $obj->{_attachment}{$name};
		443
		444	if (my $attach = $attachment{$name}) {
		445	my $registry = $obj->registry;
		446
		447	for (@$attach) {
		448	my ($klass, @attach) = @$_;
		449	_attach $registry, $klass, @attach;
		450	}
		451
		452	$obj->{$name} = \%arg;
		453	} else {
		454	warn "object uses attachment '$name' that is not available, postponing.\n";
		455	}
		456
		457	$obj->{_attachment}{$name} = undef;
		458	}
		459
		460	sub cf::attachable::attach {
		461	if (ref $_[0]) {
		462	_object_attach @_;
		463	} else {
		464	_attach shift->_attach_registry, @_;
		465	}
		466	};
		467
		468	# all those should be optimised
		469	sub cf::attachable::detach {
		470	my ($obj, $name) = @_;
		471
		472	if (ref $obj) {
		473	delete $obj->{_attachment}{$name};
		474	reattach ($obj);
		475	} else {
		476	Carp::croak "cannot, currently, detach class attachments";
		477	}
		478	};
		479
		480	sub cf::attachable::attached {
		481	my ($obj, $name) = @_;
		482
		483	exists $obj->{_attachment}{$name}
		484	}
		485
		486	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		487	eval "#line " . __LINE__ . " 'cf.pm'
		488	sub cf::\L$klass\E::_attach_registry {
		489	(\\\@CB_$klass, KLASS_$klass)
		490	}
		491
		492	sub cf::\L$klass\E::attachment {
		493	my \$name = shift;
		494
		495	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		496	}
		497	";
		498	die if $@;
		499	}
		500
		501	our $override;
		502	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		503
		504	sub override {
		505	$override = 1;
		506	@invoke_results = ();
		507	}
		508
		509	sub do_invoke {
		510	my $event = shift;
		511	my $callbacks = shift;
		512
		513	@invoke_results = ();
		514
		515	local $override;
		516
		517	for (@$callbacks) {
		518	eval { &{$_->[1]} };
		519
		520	if ($@) {
		521	warn "$@";
		522	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		523	override;
		524	}
		525
		526	return 1 if $override;
		527	}
		528
		529	0
		530	}
		531
		532	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		533
		534	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		535
		536	Generate an object-specific event with the given arguments.
		537
		538	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		539	removed in future versions), and there is no public API to access override
		540	results (if you must, access C<@cf::invoke_results> directly).
		541
458	=back	542	=back
459		543
460	=cut	544	=cut
461
462	*cf::object::valid =
463	*cf::player::valid =
464	*cf::map::valid = \&cf::_valid;
465		545
466	#############################################################################	546	#############################################################################
467	# object support	547	# object support
468		548
469	sub instantiate {
470	my ($obj, $data) = @_;
471
472	$data = from_json $data;
473
474	for (@$data) {
475	my ($name, $args) = @$_;
476
477	$obj->attach ($name, %{$args || {} });
478	}
479	}
480
481	# basically do the same as instantiate, without calling instantiate
482	sub reattach {	549	sub reattach {
		550	# basically do the same as instantiate, without calling instantiate
483	my ($obj) = @_;	551	my ($obj) = @_;
		552
484	my $registry = $obj->registry;	553	my $registry = $obj->registry;
485		554
486	@$registry = ();	555	@$registry = ();
487		556
488	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	557	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
489		558
490	for my $name (keys %{ $obj->{_attachment} || {} }) {	559	for my $name (keys %{ $obj->{_attachment} || {} }) {
491	if (my $attach = $attachment{$name}) {	560	if (my $attach = $attachment{$name}) {
492	for (@$attach) {	561	for (@$attach) {
493	my ($klass, @attach) = @$_;	562	my ($klass, @attach) = @$_;
494	_attach @$registry, $klass, @attach;	563	_attach $registry, $klass, @attach;
495	}	564	}
496	} else {	565	} else {
497	warn "object uses attachment '$name' that is not available, postponing.\n";	566	warn "object uses attachment '$name' that is not available, postponing.\n";
498	}	567	}
499	}	568	}
500	}	569	}
501		570
502	sub object_freezer_save {	571	cf::attachable->attach (
503	my ($filename, $rdata, $objs) = @_;
504
505	if (length $$rdata) {
506	warn sprintf "saving %s (%d,%d)\n",
507	$filename, length $$rdata, scalar @$objs;
508
509	if (open my $fh, ">:raw", "$filename~") {
510	chmod SAVE_MODE, $fh;
511	syswrite $fh, $$rdata;
512	close $fh;
513
514	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
517	close $fh;
518	rename "$filename.pst~", "$filename.pst";
519	} else {
520	unlink "$filename.pst";
521	}
522
523	rename "$filename~", $filename;
524	} else {
525	warn "FATAL: $filename~: $!\n";
526	}
527	} else {
528	unlink $filename;
529	unlink "$filename.pst";
530	}
531	}
532
533	sub object_freezer_as_string {
534	my ($rdata, $objs) = @_;
535
536	use Data::Dumper;
537
538	$$rdata . Dumper $objs
539	}
540
541	sub object_thawer_load {
542	my ($filename) = @_;
543
544	local $/;
545
546	my $av;
547
548	#TODO: use sysread etc.
549	if (open my $data, "<:raw:perlio", $filename) {
550	$data = <$data>;
551	if (open my $pst, "<:raw:perlio", "$filename.pst") {
552	$av = eval { (Storable::thaw <$pst>)->{objs} };
553	}
554	return ($data, $av);
555	}
556
557	()
558	}
559
560	attach_to_objects
561	prio => -1000000,	572	prio => -1000000,
		573	on_instantiate => sub {
		574	my ($obj, $data) = @_;
		575
		576	$data = from_json $data;
		577
		578	for (@$data) {
		579	my ($name, $args) = @$_;
		580
		581	$obj->attach ($name, %{$args || {} });
		582	}
		583	},
		584	on_reattach => \&reattach,
562	on_clone => sub {	585	on_clone => sub {
563	my ($src, $dst) = @_;	586	my ($src, $dst) = @_;
564		587
565	@{$dst->registry} = @{$src->registry};	588	@{$dst->registry} = @{$src->registry};
566		589
567	%$dst = %$src;	590	%$dst = %$src;
568		591
569	%{$dst->{_attachment}} = %{$src->{_attachment}}	592	%{$dst->{_attachment}} = %{$src->{_attachment}}
570	if exists $src->{_attachment};	593	if exists $src->{_attachment};
571	},	594	},
572	;	595	);
		596
		597	sub object_freezer_save {
		598	my ($filename, $rdata, $objs) = @_;
		599
		600	sync_job {
		601	if (length $$rdata) {
		602	warn sprintf "saving %s (%d,%d)\n",
		603	$filename, length $$rdata, scalar @$objs;
		604
		605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		606	chmod SAVE_MODE, $fh;
		607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		608	aio_fsync $fh;
		609	close $fh;
		610
		611	if (@$objs) {
		612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		613	chmod SAVE_MODE, $fh;
		614	my $data = Storable::nfreeze { version => 1, objs => $objs };
		615	aio_write $fh, 0, (length $data), $data, 0;
		616	aio_fsync $fh;
		617	close $fh;
		618	aio_rename "$filename.pst~", "$filename.pst";
		619	}
		620	} else {
		621	aio_unlink "$filename.pst";
		622	}
		623
		624	aio_rename "$filename~", $filename;
		625	} else {
		626	warn "FATAL: $filename~: $!\n";
		627	}
		628	} else {
		629	aio_unlink $filename;
		630	aio_unlink "$filename.pst";
		631	}
		632	}
		633	}
		634
		635	sub object_freezer_as_string {
		636	my ($rdata, $objs) = @_;
		637
		638	use Data::Dumper;
		639
		640	$$rdata . Dumper $objs
		641	}
		642
		643	sub object_thawer_load {
		644	my ($filename) = @_;
		645
		646	my ($data, $av);
		647
		648	(aio_load $filename, $data) >= 0
		649	or return;
		650
		651	unless (aio_stat "$filename.pst") {
		652	(aio_load "$filename.pst", $av) >= 0
		653	or return;
		654	$av = eval { (Storable::thaw <$av>)->{objs} };
		655	}
		656
		657	return ($data, $av);
		658	}
573		659
574	#############################################################################	660	#############################################################################
575	# old plug-in events	661	# command handling &c
576		662
577	sub inject_event {	663	=item cf::register_command $name => \&callback($ob,$args);
578	my $extension = shift;
579	my $event_code = shift;
580		664
581	my $cb = $hook[$event_code]{$extension}	665	Register a callback for execution when the client sends the user command
582	or return;	666	$name.
583		667
584	&$cb	668	=cut
585	}
586
587	sub inject_global_event {
588	my $event = shift;
589
590	my $cb = $hook[$event]
591	or return;
592
593	List::Util::max map &$_, values %$cb
594	}
595
596	sub inject_command {
597	my ($name, $obj, $params) = @_;
598
599	for my $cmd (@{ $command{$name} }) {
600	$cmd->[1]->($obj, $params);
601	}
602
603	-1
604	}
605		669
606	sub register_command {	670	sub register_command {
607	my ($name, $time, $cb) = @_;	671	my ($name, $cb) = @_;
608		672
609	my $caller = caller;	673	my $caller = caller;
610	#warn "registering command '$name/$time' to '$caller'";	674	#warn "registering command '$name/$time' to '$caller'";
611		675
612	push @{ $command{$name} }, [$time, $cb, $caller];	676	push @{ $COMMAND{$name} }, [$caller, $cb];
613	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
614	}	677	}
		678
		679	=item cf::register_extcmd $name => \&callback($pl,$packet);
		680
		681	Register a callbackf ro execution when the client sends an extcmd packet.
		682
		683	If the callback returns something, it is sent back as if reply was being
		684	called.
		685
		686	=cut
615		687
616	sub register_extcmd {	688	sub register_extcmd {
617	my ($name, $cb) = @_;	689	my ($name, $cb) = @_;
618		690
619	my $caller = caller;	691	my $caller = caller;
620	#warn "registering extcmd '$name' to '$caller'";	692	#warn "registering extcmd '$name' to '$caller'";
621		693
622	$extcmd{$name} = [$cb, $caller];	694	$EXTCMD{$name} = [$cb, $caller];
623	}	695	}
		696
		697	cf::player->attach (
		698	on_command => sub {
		699	my ($pl, $name, $params) = @_;
		700
		701	my $cb = $COMMAND{$name}
		702	or return;
		703
		704	for my $cmd (@$cb) {
		705	$cmd->[1]->($pl->ob, $params);
		706	}
		707
		708	cf::override;
		709	},
		710	on_extcmd => sub {
		711	my ($pl, $buf) = @_;
		712
		713	my $msg = eval { from_json $buf };
		714
		715	if (ref $msg) {
		716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		717	if (my %reply = $cb->[0]->($pl, $msg)) {
		718	$pl->ext_reply ($msg->{msgid}, %reply);
		719	}
		720	}
		721	} else {
		722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		723	}
		724
		725	cf::override;
		726	},
		727	);
624		728
625	sub register {	729	sub register {
626	my ($base, $pkg) = @_;	730	my ($base, $pkg) = @_;
627		731
628	#TODO	732	#TODO
…		…
671	# for my $idx (0 .. $#PLUGIN_EVENT) {	775	# for my $idx (0 .. $#PLUGIN_EVENT) {
672	# delete $hook[$idx]{$pkg};	776	# delete $hook[$idx]{$pkg};
673	# }	777	# }
674		778
675	# remove commands	779	# remove commands
676	for my $name (keys %command) {	780	for my $name (keys %COMMAND) {
677	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
678		782
679	if (@cb) {	783	if (@cb) {
680	$command{$name} = \@cb;	784	$COMMAND{$name} = \@cb;
681	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
682	} else {	785	} else {
683	delete $command{$name};
684	delete $COMMAND{"$name\000"};	786	delete $COMMAND{$name};
685	}	787	}
686	}	788	}
687		789
688	# remove extcmds	790	# remove extcmds
689	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
690	delete $extcmd{$name};	792	delete $EXTCMD{$name};
691	}	793	}
692		794
693	if (my $cb = $pkg->can ("unload")) {	795	if (my $cb = $pkg->can ("unload")) {
694	eval {	796	eval {
695	$cb->($pkg);	797	$cb->($pkg);
…		…
699		801
700	Symbol::delete_package $pkg;	802	Symbol::delete_package $pkg;
701	}	803	}
702		804
703	sub load_extensions {	805	sub load_extensions {
704	my $LIBDIR = maps_directory "perl";
705
706	for my $ext (<$LIBDIR/*.ext>) {	806	for my $ext (<$LIBDIR/*.ext>) {
707	next unless -r $ext;	807	next unless -r $ext;
708	eval {	808	eval {
709	load_extension $ext;	809	load_extension $ext;
710	1	810	1
711	} or warn "$ext not loaded: $@";	811	} or warn "$ext not loaded: $@";
712	}	812	}
713	}	813	}
714		814
715	#############################################################################	815	#############################################################################
716	# extcmd framework, basically convert ext <msg>
717	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
718
719	attach_to_players
720	on_extcmd => sub {
721	my ($pl, $buf) = @_;
722
723	my $msg = eval { from_json $buf };
724
725	if (ref $msg) {
726	if (my $cb = $extcmd{$msg->{msgtype}}) {
727	if (my %reply = $cb->[0]->($pl, $msg)) {
728	$pl->ext_reply ($msg->{msgid}, %reply);
729	}
730	}
731	} else {
732	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
733	}
734
735	cf::override;
736	},
737	;
738
739	#############################################################################
740	# load/save/clean perl data associated with a map	816	# load/save/clean perl data associated with a map
741		817
742	*cf::mapsupport::on_clean = sub {	818	*cf::mapsupport::on_clean = sub {
743	my ($map) = @_;	819	my ($map) = @_;
744		820
…		…
746	defined $path or return;	822	defined $path or return;
747		823
748	unlink "$path.pst";	824	unlink "$path.pst";
749	};	825	};
750		826
751	attach_to_maps prio => -10000, package => cf::mapsupport::;	827	cf::map->attach (prio => -10000, package => cf::mapsupport::);
752		828
753	#############################################################################	829	#############################################################################
754	# load/save perl data associated with player->ob objects	830	# load/save perl data associated with player->ob objects
755		831
756	sub all_objects(@) {	832	sub all_objects(@) {
757	@_, map all_objects ($_->inv), @_	833	@_, map all_objects ($_->inv), @_
758	}	834	}
759		835
760	# TODO: compatibility cruft, remove when no longer needed	836	# TODO: compatibility cruft, remove when no longer needed
761	attach_to_players	837	cf::player->attach (
762	on_load => sub {	838	on_load => sub {
763	my ($pl, $path) = @_;	839	my ($pl, $path) = @_;
764		840
765	for my $o (all_objects $pl->ob) {	841	for my $o (all_objects $pl->ob) {
766	if (my $value = $o->get_ob_key_value ("_perl_data")) {	842	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
768		844
769	%$o = %{ Storable::thaw pack "H*", $value };	845	%$o = %{ Storable::thaw pack "H*", $value };
770	}	846	}
771	}	847	}
772	},	848	},
773	;	849	);
774		850
775	#############################################################################	851	#############################################################################
776		852
777	=head2 CORE EXTENSIONS	853	=head2 CORE EXTENSIONS
778		854
779	Functions and methods that extend core crossfire objects.	855	Functions and methods that extend core crossfire objects.
		856
		857	=head3 cf::player
780		858
781	=over 4	859	=over 4
782		860
783	=item cf::player::exists $login	861	=item cf::player::exists $login
784		862
…		…
789	sub cf::player::exists($) {	867	sub cf::player::exists($) {
790	cf::player::find $_[0]	868	cf::player::find $_[0]
791	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
792	}	870	}
793		871
		872	=item $player->ext_reply ($msgid, $msgtype, %msg)
		873
		874	Sends an ext reply to the player.
		875
		876	=cut
		877
		878	sub cf::player::ext_reply($$$%) {
		879	my ($self, $id, %msg) = @_;
		880
		881	$msg{msgid} = $id;
		882
		883	$self->send ("ext " . to_json \%msg);
		884	}
		885
		886	=back
		887
		888	=head3 cf::object::player
		889
		890	=over 4
		891
794	=item $player_object->reply ($npc, $msg[, $flags])	892	=item $player_object->reply ($npc, $msg[, $flags])
795		893
796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	894	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
797	can be C<undef>. Does the right thing when the player is currently in a	895	can be C<undef>. Does the right thing when the player is currently in a
798	dialogue with the given NPC character.	896	dialogue with the given NPC character.
799		897
800	=cut	898	=cut
801		899
802	# rough implementation of a future "reply" method that works	900	# rough implementation of a future "reply" method that works
803	# with dialog boxes.	901	# with dialog boxes.
		902	#TODO: the first argument must go, split into a $npc->reply_to ( method
804	sub cf::object::player::reply($$$;$) {	903	sub cf::object::player::reply($$$;$) {
805	my ($self, $npc, $msg, $flags) = @_;	904	my ($self, $npc, $msg, $flags) = @_;
806		905
807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	906	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
808		907
…		…
812	$msg = $npc->name . " says: $msg" if $npc;	911	$msg = $npc->name . " says: $msg" if $npc;
813	$self->message ($msg, $flags);	912	$self->message ($msg, $flags);
814	}	913	}
815	}	914	}
816		915
817	=item $player->ext_reply ($msgid, $msgtype, %msg)
818
819	Sends an ext reply to the player.
820
821	=cut
822
823	sub cf::player::ext_reply($$$%) {
824	my ($self, $id, %msg) = @_;
825
826	$msg{msgid} = $id;
827
828	$self->send ("ext " . to_json \%msg);
829	}
830
831	=item $player_object->may ("access")	916	=item $player_object->may ("access")
832		917
833	Returns wether the given player is authorized to access resource "access"	918	Returns wether the given player is authorized to access resource "access"
834	(e.g. "command_wizcast").	919	(e.g. "command_wizcast").
835		920
…		…
842	(ref $cf::CFG{"may_$access"}	927	(ref $cf::CFG{"may_$access"}
843	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
844	: $cf::CFG{"may_$access"})	929	: $cf::CFG{"may_$access"})
845	}	930	}
846		931
847	=cut	932	=head3 cf::client
848		933
849	#############################################################################	934	=over 4
		935
		936	=item $client->send_drawinfo ($text, $flags)
		937
		938	Sends a drawinfo packet to the client. Circumvents output buffering so
		939	should not be used under normal circumstances.
		940
		941	=cut
		942
		943	sub cf::client::send_drawinfo {
		944	my ($self, $text, $flags) = @_;
		945
		946	utf8::encode $text;
		947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		948	}
		949
		950
		951	=item $success = $client->query ($flags, "text", \&cb)
		952
		953	Queues a query to the client, calling the given callback with
		954	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		955	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		956
		957	Queries can fail, so check the return code. Or don't, as queries will become
		958	reliable at some point in the future.
		959
		960	=cut
		961
		962	sub cf::client::query {
		963	my ($self, $flags, $text, $cb) = @_;
		964
		965	return unless $self->state == ST_PLAYING
		966	|| $self->state == ST_SETUP
		967	|| $self->state == ST_CUSTOM;
		968
		969	$self->state (ST_CUSTOM);
		970
		971	utf8::encode $text;
		972	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		973
		974	$self->send_packet ($self->{query_queue}[0][0])
		975	if @{ $self->{query_queue} } == 1;
		976	}
		977
		978	cf::client->attach (
		979	on_reply => sub {
		980	my ($ns, $msg) = @_;
		981
		982	# this weird shuffling is so that direct followup queries
		983	# get handled first
		984	my $queue = delete $ns->{query_queue};
		985
		986	(shift @$queue)->[1]->($msg);
		987
		988	push @{ $ns->{query_queue} }, @$queue;
		989
		990	if (@{ $ns->{query_queue} } == @$queue) {
		991	if (@$queue) {
		992	$ns->send_packet ($ns->{query_queue}[0][0]);
		993	} else {
		994	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		995	}
		996	}
		997	},
		998	);
		999
		1000	=item $client->coro (\&cb)
		1001
		1002	Create a new coroutine, running the specified callback. The coroutine will
		1003	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1004	or loss of connection).
		1005
		1006	=cut
		1007
		1008	sub cf::client::coro {
		1009	my ($self, $cb) = @_;
		1010
		1011	my $coro; $coro = async {
		1012	eval {
		1013	$cb->();
		1014	};
		1015	warn $@ if $@;
		1016	};
		1017
		1018	$coro->on_destroy (sub {
		1019	delete $self->{_coro}{$coro+0};
		1020	});
		1021
		1022	$self->{_coro}{$coro+0} = $coro;
		1023
		1024	$coro
		1025	}
		1026
		1027	cf::client->attach (
		1028	on_destroy => sub {
		1029	my ($ns) = @_;
		1030
		1031	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1032	},
		1033	);
		1034
		1035	=back
		1036
850		1037
851	=head2 SAFE SCRIPTING	1038	=head2 SAFE SCRIPTING
852		1039
853	Functions that provide a safe environment to compile and execute	1040	Functions that provide a safe environment to compile and execute
854	snippets of perl code without them endangering the safety of the server	1041	snippets of perl code without them endangering the safety of the server
…		…
869		1056
870	=pod	1057	=pod
871		1058
872	The following fucntions and emthods are available within a safe environment:	1059	The following fucntions and emthods are available within a safe environment:
873		1060
874	cf::object contr pay_amount pay_player	1061	cf::object contr pay_amount pay_player map
875	cf::object::player player	1062	cf::object::player player
876	cf::player peaceful	1063	cf::player peaceful
		1064	cf::map trigger
877		1065
878	=cut	1066	=cut
879		1067
880	for (	1068	for (
881	["cf::object" => qw(contr pay_amount pay_player)],	1069	["cf::object" => qw(contr pay_amount pay_player map)],
882	["cf::object::player" => qw(player)],	1070	["cf::object::player" => qw(player)],
883	["cf::player" => qw(peaceful)],	1071	["cf::player" => qw(peaceful)],
		1072	["cf::map" => qw(trigger)],
884	) {	1073	) {
885	no strict 'refs';	1074	no strict 'refs';
886	my ($pkg, @funs) = @$_;	1075	my ($pkg, @funs) = @$_;
887	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1076	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
888	for @funs;	1077	for @funs;
…		…
1028	sub db_sync() {	1217	sub db_sync() {
1029	db_save if $dirty;	1218	db_save if $dirty;
1030	undef $dirty;	1219	undef $dirty;
1031	}	1220	}
1032		1221
1033	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1034	db_sync;	1223	db_sync;
1035	});	1224	});
1036		1225
1037	sub db_dirty() {	1226	sub db_dirty() {
1038	$dirty = 1;	1227	$dirty = 1;
…		…
1052	$DB->{$_[0]} = $_[1];	1241	$DB->{$_[0]} = $_[1];
1053	}	1242	}
1054	db_dirty;	1243	db_dirty;
1055	}	1244	}
1056		1245
1057	attach_global	1246	cf::global->attach (
1058	prio => 10000,	1247	prio => 10000,
1059	on_cleanup => sub {	1248	on_cleanup => sub {
1060	db_sync;	1249	db_sync;
1061	},	1250	},
1062	;	1251	);
1063	}	1252	}
1064		1253
1065	#############################################################################	1254	#############################################################################
1066	# the server's main()	1255	# the server's main()
1067		1256
…		…
1081	}	1270	}
1082		1271
1083	#############################################################################	1272	#############################################################################
1084	# initialisation	1273	# initialisation
1085		1274
1086	sub _perl_reload(&) {	1275	sub _perl_reload() {
1087	my ($msg) = @_;	1276	warn "reloading...";
1088
1089	$msg->("reloading...");
1090		1277
1091	eval {	1278	eval {
		1279	local $FREEZE = 1;
		1280
		1281	cf::emergency_save;
		1282
1092	# cancel all watchers	1283	# cancel all watchers
1093	$_->cancel for Event::all_watchers;	1284	for (Event::all_watchers) {
		1285	$_->cancel if $_->data & WF_AUTOCANCEL;
		1286	}
		1287
		1288	# cancel all extension coros
		1289	$_->cancel for values %EXT_CORO;
		1290	%EXT_CORO = ();
1094		1291
1095	# unload all extensions	1292	# unload all extensions
1096	for (@exts) {	1293	for (@exts) {
1097	$msg->("unloading <$_>");	1294	warn "unloading <$_>";
1098	unload_extension $_;	1295	unload_extension $_;
1099	}	1296	}
1100		1297
1101	# unload all modules loaded from $LIBDIR	1298	# unload all modules loaded from $LIBDIR
1102	while (my ($k, $v) = each %INC) {	1299	while (my ($k, $v) = each %INC) {
1103	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1104		1301
1105	$msg->("removing <$k>");	1302	warn "removing <$k>";
1106	delete $INC{$k};	1303	delete $INC{$k};
1107		1304
1108	$k =~ s/\.pm$//;	1305	$k =~ s/\.pm$//;
1109	$k =~ s/\//::/g;	1306	$k =~ s/\//::/g;
1110		1307
…		…
1115	Symbol::delete_package $k;	1312	Symbol::delete_package $k;
1116	}	1313	}
1117		1314
1118	# sync database to disk	1315	# sync database to disk
1119	cf::db_sync;	1316	cf::db_sync;
		1317	IO::AIO::flush;
1120		1318
1121	# get rid of safe::, as good as possible	1319	# get rid of safe::, as good as possible
1122	Symbol::delete_package "safe::$_"	1320	Symbol::delete_package "safe::$_"
1123	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1124		1322
1125	# remove register_script_function callbacks	1323	# remove register_script_function callbacks
1126	# TODO	1324	# TODO
1127		1325
1128	# unload cf.pm "a bit"	1326	# unload cf.pm "a bit"
…		…
1131	# don't, removes xs symbols, too,	1329	# don't, removes xs symbols, too,
1132	# and global variables created in xs	1330	# and global variables created in xs
1133	#Symbol::delete_package __PACKAGE__;	1331	#Symbol::delete_package __PACKAGE__;
1134		1332
1135	# reload cf.pm	1333	# reload cf.pm
1136	$msg->("reloading cf.pm");	1334	warn "reloading cf.pm";
1137	require cf;	1335	require cf;
		1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1138		1337
1139	# load config and database again	1338	# load config and database again
1140	cf::cfg_load;	1339	cf::cfg_load;
1141	cf::db_load;	1340	cf::db_load;
1142		1341
1143	# load extensions	1342	# load extensions
1144	$msg->("load extensions");	1343	warn "load extensions";
1145	cf::load_extensions;	1344	cf::load_extensions;
1146		1345
1147	# reattach attachments to objects	1346	# reattach attachments to objects
1148	$msg->("reattach");	1347	warn "reattach";
1149	_global_reattach;	1348	_global_reattach;
1150	};	1349	};
1151	$msg->($@) if $@;	1350	warn $@ if $@;
1152		1351
1153	$msg->("reloaded");	1352	warn "reloaded";
1154	};	1353	};
1155		1354
1156	sub perl_reload() {	1355	sub perl_reload() {
1157	_perl_reload {	1356	_perl_reload;
1158	warn $_[0];
1159	print "$_[0]\n";
1160	};
1161	}	1357	}
1162		1358
		1359	register "<global>", __PACKAGE__;
		1360
1163	register_command "perl-reload", 0, sub {	1361	register_command "perl-reload" => sub {
1164	my ($who, $arg) = @_;	1362	my ($who, $arg) = @_;
1165		1363
1166	if ($who->flag (FLAG_WIZ)) {	1364	if ($who->flag (FLAG_WIZ)) {
		1365	$who->message ("reloading...");
1167	_perl_reload {	1366	_perl_reload;
1168	warn $_[0];
1169	$who->message ($_[0]);
1170	};
1171	}	1367	}
1172	};	1368	};
1173		1369
1174	register "<global>", __PACKAGE__;
1175
1176	unshift @INC, $LIBDIR;	1370	unshift @INC, $LIBDIR;
1177		1371
1178	$TICK_WATCHER = Event->timer (	1372	$TICK_WATCHER = Event->timer (
		1373	reentrant => 0,
1179	prio => 1,	1374	prio => 0,
1180	async => 1,
1181	at => $NEXT_TICK || 1,	1375	at => $NEXT_TICK || $TICK,
		1376	data => WF_AUTOCANCEL,
1182	cb => sub {	1377	cb => sub {
		1378	unless ($FREEZE) {
1183	cf::server_tick; # one server iteration	1379	cf::server_tick; # one server iteration
		1380	$RUNTIME += $TICK;
		1381	}
1184		1382
1185	my $NOW = Event::time;
1186	$NEXT_TICK += $TICK;	1383	$NEXT_TICK += $TICK;
1187		1384
1188	# if we are delayed by four ticks or more, skip them all	1385	# if we are delayed by four ticks or more, skip them all
1189	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1190		1387
1191	$TICK_WATCHER->at ($NEXT_TICK);	1388	$TICK_WATCHER->at ($NEXT_TICK);
1192	$TICK_WATCHER->start;	1389	$TICK_WATCHER->start;
1193	},	1390	},
1194	);	1391	);
…		…
1196	IO::AIO::max_poll_time $TICK * 0.2;	1393	IO::AIO::max_poll_time $TICK * 0.2;
1197		1394
1198	Event->io (fd => IO::AIO::poll_fileno,	1395	Event->io (fd => IO::AIO::poll_fileno,
1199	poll => 'r',	1396	poll => 'r',
1200	prio => 5,	1397	prio => 5,
		1398	data => WF_AUTOCANCEL,
1201	cb => \&IO::AIO::poll_cb);	1399	cb => \&IO::AIO::poll_cb);
1202		1400
		1401	# we must not ever block the main coroutine
		1402	$Coro::idle = sub {
		1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1404	warn "FATAL: Coro::idle was called, major BUG\n";
		1405	(Coro::unblock_sub {
		1406	Event::one_event;
		1407	})->();
		1408	};
		1409
1203	1	1410	1
1204		1411

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