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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.85 by root, Mon Dec 11 22:56:57 2006 UTC vs.
Revision 1.107 by root, Sun Dec 31 18:10:40 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
		31
		32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
20		33
21	our %COMMAND = ();	34	our %COMMAND = ();
22	our %COMMAND_TIME = ();	35	our %COMMAND_TIME = ();
23	our %EXTCMD = ();	36	our %EXTCMD = ();
24		37
25	_init_vars;
26
27	our @EVENT;	38	our @EVENT;
28	our $LIBDIR = maps_directory "perl";	39	our $LIBDIR = datadir . "/ext";
29		40
30	our $TICK = MAX_TIME * 1e-6;	41	our $TICK = MAX_TIME * 1e-6;
31	our $TICK_WATCHER;	42	our $TICK_WATCHER;
32	our $NEXT_TICK;	43	our $NEXT_TICK;
		44	our $NOW;
33		45
34	our %CFG;	46	our %CFG;
35		47
36	our $UPTIME; $UPTIME ||= time;	48	our $UPTIME; $UPTIME ||= time;
		49	our $RUNTIME;
		50
		51	our %MAP; # all maps
		52	our $LINK_MAP; # the special {link} map
		53	our $FREEZE;
		54
		55	binmode STDOUT;
		56	binmode STDERR;
		57
		58	# read virtual server time, if available
		59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		60	open my $fh, "<", cf::localdir . "/runtime"
		61	or die "unable to read runtime file: $!";
		62	$RUNTIME = <$fh> + 0.;
		63	}
		64
		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	$Event::DIED = sub {
…		…
119	sub to_json($) {	174	sub to_json($) {
120	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
121	JSON::Syck::Dump $_[0]	176	JSON::Syck::Dump $_[0]
122	}	177	}
123		178
		179	=item cf::sync_job { BLOCK }
		180
		181	The design of crossfire+ requires that the main coro ($Coro::main) is
		182	always able to handle events or runnable, as crossfire+ is only partly
		183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		184
		185	If it must be done, put the blocking parts into C<sync_job>. This will run
		186	the given BLOCK in another coroutine while waiting for the result. The
		187	server will be frozen during this time, so the block should either finish
		188	fast or be very important.
		189
		190	=cut
		191
		192	sub sync_job(&) {
		193	my ($job) = @_;
		194
		195	my $busy = 1;
		196	my @res;
		197
		198	# TODO: use suspend/resume instead
		199	local $FREEZE = 1;
		200
		201	my $coro = Coro::async {
		202	@res = eval { $job->() };
		203	warn $@ if $@;
		204	undef $busy;
		205	};
		206
		207	if ($Coro::current == $Coro::main) {
		208	$coro->prio (Coro::PRIO_MAX);
		209	while ($busy) {
		210	Coro::cede_notself;
		211	Event::one_event unless Coro::nready;
		212	}
		213	} else {
		214	$coro->join;
		215	}
		216
		217	wantarray ? @res : $res[0]
		218	}
		219
		220	=item $coro = cf::coro { BLOCK }
		221
		222	Creates and returns a new coro. This coro is automcatially being canceled
		223	when the extension calling this is being unloaded.
		224
		225	=cut
		226
		227	sub coro(&) {
		228	my $cb = shift;
		229
		230	my $coro; $coro = async {
		231	eval {
		232	$cb->();
		233	};
		234	warn $@ if $@;
		235	};
		236
		237	$coro->on_destroy (sub {
		238	delete $EXT_CORO{$coro+0};
		239	});
		240	$EXT_CORO{$coro+0} = $coro;
		241
		242	$coro
		243	}
		244
124	=back	245	=back
125		246
126	=cut	247	=cut
127		248
128	#############################################################################	249	#############################################################################
129		250
130	=head2 EVENTS AND OBJECT ATTACHMENTS	251	=head2 ATTACHABLE OBJECTS
		252
		253	Many objects in crossfire are so-called attachable objects. That means you can
		254	attach callbacks/event handlers (a collection of which is called an "attachment")
		255	to it. All such attachable objects support the following methods.
		256
		257	In the following description, CLASS can be any of C<global>, C<object>
		258	C<player>, C<client> or C<map> (i.e. the attachable objects in
		259	crossfire+).
131		260
132	=over 4	261	=over 4
133		262
134	=item $object->attach ($attachment, key => $value...)
135
136	=item $object->detach ($attachment)
137
138	Attach/detach a pre-registered attachment to an object.
139
140	=item $player->attach ($attachment, key => $value...)
141
142	=item $player->detach ($attachment)
143
144	Attach/detach a pre-registered attachment to a player.
145
146	=item $map->attach ($attachment, key => $value...)	263	=item $attachable->attach ($attachment, key => $value...)
147		264
148	=item $map->detach ($attachment)	265	=item $attachable->detach ($attachment)
149		266
150	Attach/detach a pre-registered attachment to a map.	267	Attach/detach a pre-registered attachment to a specific object and give it
		268	the specified key/value pairs as arguments.
151		269
152	=item $bool = $object->attached ($name)	270	Example, attach a minesweeper attachment to the given object, making it a
		271	10x10 minesweeper game:
153		272
154	=item $bool = $player->attached ($name)	273	$obj->attach (minesweeper => width => 10, height => 10);
155		274
156	=item $bool = $map->attached ($name)	275	=item $bool = $attachable->attached ($name)
157		276
158	Checks wether the named attachment is currently attached to the object.	277	Checks wether the named attachment is currently attached to the object.
159		278
160	=item cf::attach_global ...	279	=item cf::CLASS->attach ...
161		280
162	Attach handlers for global events.	281	=item cf::CLASS->detach ...
163		282
164	This and all following C<attach_*>-functions expect any number of the	283	Define an anonymous attachment and attach it to all objects of the given
165	following handler/hook descriptions:	284	CLASS. See the next function for an explanation of its arguments.
		285
		286	You can attach to global events by using the C<cf::global> class.
		287
		288	Example, log all player logins:
		289
		290	cf::player->attach (
		291	on_login => sub {
		292	my ($pl) = @_;
		293	...
		294	},
		295	);
		296
		297	Example, attach to the jeweler skill:
		298
		299	cf::object->attach (
		300	type => cf::SKILL,
		301	subtype => cf::SK_JEWELER,
		302	on_use_skill => sub {
		303	my ($sk, $ob, $part, $dir, $msg) = @_;
		304	...
		305	},
		306	);
		307
		308	=item cf::CLASS::attachment $name, ...
		309
		310	Register an attachment by C<$name> through which attachable objects of the
		311	given CLASS can refer to this attachment.
		312
		313	Some classes such as crossfire maps and objects can specify attachments
		314	that are attached at load/instantiate time, thus the need for a name.
		315
		316	These calls expect any number of the following handler/hook descriptions:
166		317
167	=over 4	318	=over 4
168		319
169	=item prio => $number	320	=item prio => $number
170		321
…		…
172	by another C<prio> setting). Lower priority handlers get executed	323	by another C<prio> setting). Lower priority handlers get executed
173	earlier. The default priority is C<0>, and many built-in handlers are	324	earlier. The default priority is C<0>, and many built-in handlers are
174	registered at priority C<-1000>, so lower priorities should not be used	325	registered at priority C<-1000>, so lower priorities should not be used
175	unless you know what you are doing.	326	unless you know what you are doing.
176		327
		328	=item type => $type
		329
		330	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		331	given type of objects only (the additional parameter C<subtype> can be
		332	used to further limit to the given subtype).
		333
177	=item on_I<event> => \&cb	334	=item on_I<event> => \&cb
178		335
179	Call the given code reference whenever the named event happens (event is	336	Call the given code reference whenever the named event happens (event is
180	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	337	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
181	handlers are recognised generally depends on the type of object these	338	handlers are recognised generally depends on the type of object these
…		…
190	package and register them. Only handlers for eevents supported by the	347	package and register them. Only handlers for eevents supported by the
191	object/class are recognised.	348	object/class are recognised.
192		349
193	=back	350	=back
194		351
195	=item cf::attach_to_type $object_type, $subtype, ...	352	Example, define an attachment called "sockpuppet" that calls the given
		353	event handler when a monster attacks:
196		354
197	Attach handlers for a specific object type (e.g. TRANSPORT) and	355	cf::object::attachment sockpuppet =>
198	subtype. If C<$subtype> is zero or undef, matches all objects of the given	356	on_skill_attack => sub {
199	type.	357	my ($self, $victim) = @_;
200		358	...
201	=item cf::attach_to_objects ...
202
203	Attach handlers to all objects. Do not use this except for debugging or
204	very rare events, as handlers are (obviously) called for I<all> objects in
205	the game.
206
207	=item cf::attach_to_players ...
208
209	Attach handlers to all players.
210
211	=item cf::attach_to_maps ...
212
213	Attach handlers to all maps.
214
215	=item cf:register_attachment $name, ...
216
217	Register an attachment by name through which objects can refer to this
218	attachment.
219
220	=item cf:register_player_attachment $name, ...
221
222	Register an attachment by name through which players can refer to this
223	attachment.
224
225	=item cf:register_map_attachment $name, ...
226
227	Register an attachment by name through which maps can refer to this
228	attachment.
229
230	=cut
231
232	# the following variables are defined in .xs and must not be re-created
233	our @CB_GLOBAL = (); # registry for all global events
234	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
235	our @CB_PLAYER = ();
236	our @CB_TYPE = (); # registry for type (cf-object class) based events
237	our @CB_MAP = ();
238
239	my %attachment;
240
241	sub _attach_cb($\%$$$) {
242	my ($registry, $undo, $event, $prio, $cb) = @_;
243
244	use sort 'stable';
245
246	$cb = [$prio, $cb];
247
248	@{$registry->[$event]} = sort
249	{ $a->[0] cmp $b->[0] }
250	@{$registry->[$event] || []}, $cb;
251
252	push @{$undo->{cb}}, [$event, $cb];
253	}
254
255	# attach handles attaching event callbacks
256	# the only thing the caller has to do is pass the correct
257	# registry (== where the callback attaches to).
258	sub _attach(\@$@) {
259	my ($registry, $klass, @arg) = @_;
260
261	my $prio = 0;
262
263	my %undo = (
264	registry => $registry,
265	cb => [],
266	);
267
268	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
269
270	while (@arg) {
271	my $type = shift @arg;
272
273	if ($type eq "prio") {
274	$prio = shift @arg;
275
276	} elsif ($type eq "package") {
277	my $pkg = shift @arg;
278
279	while (my ($name, $id) = each %cb_id) {
280	if (my $cb = $pkg->can ($name)) {
281	_attach_cb $registry, %undo, $id, $prio, $cb;
282	}
283	}	359	}
284
285	} elsif (exists $cb_id{$type}) {
286	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
287
288	} elsif (ref $type) {
289	warn "attaching objects not supported, ignoring.\n";
290
291	} else {
292	shift @arg;
293	warn "attach argument '$type' not supported, ignoring.\n";
294	}
295	}
296
297	\%undo
298	}
299
300	sub _attach_attachment {
301	my ($obj, $name, %arg) = @_;
302
303	return if exists $obj->{_attachment}{$name};
304
305	my $res;
306
307	if (my $attach = $attachment{$name}) {
308	my $registry = $obj->registry;
309
310	for (@$attach) {
311	my ($klass, @attach) = @$_;
312	$res = _attach @$registry, $klass, @attach;
313	}
314
315	$obj->{$name} = \%arg;
316	} else {
317	warn "object uses attachment '$name' that is not available, postponing.\n";
318	}
319
320	$obj->{_attachment}{$name} = undef;
321
322	$res->{attachment} = $name;
323	$res
324	}
325
326	*cf::object::attach =
327	*cf::player::attach =
328	*cf::map::attach = sub {
329	my ($obj, $name, %arg) = @_;
330
331	_attach_attachment $obj, $name, %arg;
332	};
333
334	# all those should be optimised
335	*cf::object::detach =
336	*cf::player::detach =
337	*cf::map::detach = sub {
338	my ($obj, $name) = @_;
339
340	delete $obj->{_attachment}{$name};
341	reattach ($obj);
342	};
343
344	*cf::object::attached =
345	*cf::player::attached =
346	*cf::map::attached = sub {
347	my ($obj, $name) = @_;
348
349	exists $obj->{_attachment}{$name}
350	};
351
352	sub attach_global {
353	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
354	}
355
356	sub attach_to_type {
357	my $type = shift;
358	my $subtype = shift;
359
360	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
361	}
362
363	sub attach_to_objects {
364	_attach @CB_OBJECT, KLASS_OBJECT, @_
365	}
366
367	sub attach_to_players {
368	_attach @CB_PLAYER, KLASS_PLAYER, @_
369	}
370
371	sub attach_to_maps {
372	_attach @CB_MAP, KLASS_MAP, @_
373	}
374
375	sub register_attachment {
376	my $name = shift;
377
378	$attachment{$name} = [[KLASS_OBJECT, @_]];
379	}
380
381	sub register_player_attachment {
382	my $name = shift;
383
384	$attachment{$name} = [[KLASS_PLAYER, @_]];
385	}
386
387	sub register_map_attachment {
388	my $name = shift;
389
390	$attachment{$name} = [[KLASS_MAP, @_]];
391	}
392
393	our $override;
394	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
395
396	sub override {
397	$override = 1;
398	@invoke_results = ();
399	}
400
401	sub do_invoke {
402	my $event = shift;
403	my $callbacks = shift;
404
405	@invoke_results = ();
406
407	local $override;
408
409	for (@$callbacks) {
410	eval { &{$_->[1]} };
411
412	if ($@) {
413	warn "$@";
414	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
415	override;
416	}
417
418	return 1 if $override;
419	}
420
421	0	360	}
422	}
423		361
424	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	362	=item $attachable->valid
425
426	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
427
428	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
429
430	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
431
432	Generate a global/object/player/map-specific event with the given arguments.
433
434	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
435	removed in future versions), and there is no public API to access override
436	results (if you must, access C<@cf::invoke_results> directly).
437
438	=back
439
440	=cut
441
442	#############################################################################
443
444	=head2 METHODS VALID FOR ALL CORE OBJECTS
445
446	=over 4
447
448	=item $object->valid, $player->valid, $map->valid
449		363
450	Just because you have a perl object does not mean that the corresponding	364	Just because you have a perl object does not mean that the corresponding
451	C-level object still exists. If you try to access an object that has no	365	C-level object still exists. If you try to access an object that has no
452	valid C counterpart anymore you get an exception at runtime. This method	366	valid C counterpart anymore you get an exception at runtime. This method
453	can be used to test for existence of the C object part without causing an	367	can be used to test for existence of the C object part without causing an
454	exception.	368	exception.
455		369
		370	=cut
		371
		372	# the following variables are defined in .xs and must not be re-created
		373	our @CB_GLOBAL = (); # registry for all global events
		374	our @CB_ATTACHABLE = (); # registry for all attachables
		375	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		376	our @CB_PLAYER = ();
		377	our @CB_CLIENT = ();
		378	our @CB_TYPE = (); # registry for type (cf-object class) based events
		379	our @CB_MAP = ();
		380
		381	my %attachment;
		382
		383	sub _attach_cb($$$$) {
		384	my ($registry, $event, $prio, $cb) = @_;
		385
		386	use sort 'stable';
		387
		388	$cb = [$prio, $cb];
		389
		390	@{$registry->[$event]} = sort
		391	{ $a->[0] cmp $b->[0] }
		392	@{$registry->[$event] || []}, $cb;
		393	}
		394
		395	# hack
		396	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		397
		398	# attach handles attaching event callbacks
		399	# the only thing the caller has to do is pass the correct
		400	# registry (== where the callback attaches to).
		401	sub _attach {
		402	my ($registry, $klass, @arg) = @_;
		403
		404	my $object_type;
		405	my $prio = 0;
		406	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		407
		408	#TODO: get rid of this hack
		409	if ($attachable_klass{$klass}) {
		410	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		411	}
		412
		413	while (@arg) {
		414	my $type = shift @arg;
		415
		416	if ($type eq "prio") {
		417	$prio = shift @arg;
		418
		419	} elsif ($type eq "type") {
		420	$object_type = shift @arg;
		421	$registry = $CB_TYPE[$object_type] ||= [];
		422
		423	} elsif ($type eq "subtype") {
		424	defined $object_type or Carp::croak "subtype specified without type";
		425	my $object_subtype = shift @arg;
		426	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		427
		428	} elsif ($type eq "package") {
		429	my $pkg = shift @arg;
		430
		431	while (my ($name, $id) = each %cb_id) {
		432	if (my $cb = $pkg->can ($name)) {
		433	_attach_cb $registry, $id, $prio, $cb;
		434	}
		435	}
		436
		437	} elsif (exists $cb_id{$type}) {
		438	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		439
		440	} elsif (ref $type) {
		441	warn "attaching objects not supported, ignoring.\n";
		442
		443	} else {
		444	shift @arg;
		445	warn "attach argument '$type' not supported, ignoring.\n";
		446	}
		447	}
		448	}
		449
		450	sub _object_attach {
		451	my ($obj, $name, %arg) = @_;
		452
		453	return if exists $obj->{_attachment}{$name};
		454
		455	if (my $attach = $attachment{$name}) {
		456	my $registry = $obj->registry;
		457
		458	for (@$attach) {
		459	my ($klass, @attach) = @$_;
		460	_attach $registry, $klass, @attach;
		461	}
		462
		463	$obj->{$name} = \%arg;
		464	} else {
		465	warn "object uses attachment '$name' that is not available, postponing.\n";
		466	}
		467
		468	$obj->{_attachment}{$name} = undef;
		469	}
		470
		471	sub cf::attachable::attach {
		472	if (ref $_[0]) {
		473	_object_attach @_;
		474	} else {
		475	_attach shift->_attach_registry, @_;
		476	}
		477	};
		478
		479	# all those should be optimised
		480	sub cf::attachable::detach {
		481	my ($obj, $name) = @_;
		482
		483	if (ref $obj) {
		484	delete $obj->{_attachment}{$name};
		485	reattach ($obj);
		486	} else {
		487	Carp::croak "cannot, currently, detach class attachments";
		488	}
		489	};
		490
		491	sub cf::attachable::attached {
		492	my ($obj, $name) = @_;
		493
		494	exists $obj->{_attachment}{$name}
		495	}
		496
		497	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		498	eval "#line " . __LINE__ . " 'cf.pm'
		499	sub cf::\L$klass\E::_attach_registry {
		500	(\\\@CB_$klass, KLASS_$klass)
		501	}
		502
		503	sub cf::\L$klass\E::attachment {
		504	my \$name = shift;
		505
		506	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		507	}
		508	";
		509	die if $@;
		510	}
		511
		512	our $override;
		513	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		514
		515	sub override {
		516	$override = 1;
		517	@invoke_results = ();
		518	}
		519
		520	sub do_invoke {
		521	my $event = shift;
		522	my $callbacks = shift;
		523
		524	@invoke_results = ();
		525
		526	local $override;
		527
		528	for (@$callbacks) {
		529	eval { &{$_->[1]} };
		530
		531	if ($@) {
		532	warn "$@";
		533	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		534	override;
		535	}
		536
		537	return 1 if $override;
		538	}
		539
		540	0
		541	}
		542
		543	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		544
		545	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		546
		547	Generate an object-specific event with the given arguments.
		548
		549	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		550	removed in future versions), and there is no public API to access override
		551	results (if you must, access C<@cf::invoke_results> directly).
		552
456	=back	553	=back
457		554
458	=cut	555	=cut
459
460	*cf::object::valid =
461	*cf::player::valid =
462	*cf::map::valid = \&cf::_valid;
463		556
464	#############################################################################	557	#############################################################################
465	# object support	558	# object support
466		559
467	sub instantiate {
468	my ($obj, $data) = @_;
469
470	$data = from_json $data;
471
472	for (@$data) {
473	my ($name, $args) = @$_;
474
475	$obj->attach ($name, %{$args || {} });
476	}
477	}
478
479	# basically do the same as instantiate, without calling instantiate
480	sub reattach {	560	sub reattach {
		561	# basically do the same as instantiate, without calling instantiate
481	my ($obj) = @_;	562	my ($obj) = @_;
		563
482	my $registry = $obj->registry;	564	my $registry = $obj->registry;
483		565
484	@$registry = ();	566	@$registry = ();
485		567
486	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	568	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
487		569
488	for my $name (keys %{ $obj->{_attachment} || {} }) {	570	for my $name (keys %{ $obj->{_attachment} || {} }) {
489	if (my $attach = $attachment{$name}) {	571	if (my $attach = $attachment{$name}) {
490	for (@$attach) {	572	for (@$attach) {
491	my ($klass, @attach) = @$_;	573	my ($klass, @attach) = @$_;
492	_attach @$registry, $klass, @attach;	574	_attach $registry, $klass, @attach;
493	}	575	}
494	} else {	576	} else {
495	warn "object uses attachment '$name' that is not available, postponing.\n";	577	warn "object uses attachment '$name' that is not available, postponing.\n";
496	}	578	}
497	}	579	}
498	}	580	}
499		581
500	sub object_freezer_save {	582	cf::attachable->attach (
501	my ($filename, $rdata, $objs) = @_;
502
503	if (length $$rdata) {
504	warn sprintf "saving %s (%d,%d)\n",
505	$filename, length $$rdata, scalar @$objs;
506
507	if (open my $fh, ">:raw", "$filename~") {
508	chmod SAVE_MODE, $fh;
509	syswrite $fh, $$rdata;
510	close $fh;
511
512	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
513	chmod SAVE_MODE, $fh;
514	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
515	close $fh;
516	rename "$filename.pst~", "$filename.pst";
517	} else {
518	unlink "$filename.pst";
519	}
520
521	rename "$filename~", $filename;
522	} else {
523	warn "FATAL: $filename~: $!\n";
524	}
525	} else {
526	unlink $filename;
527	unlink "$filename.pst";
528	}
529	}
530
531	sub object_freezer_as_string {
532	my ($rdata, $objs) = @_;
533
534	use Data::Dumper;
535
536	$$rdata . Dumper $objs
537	}
538
539	sub object_thawer_load {
540	my ($filename) = @_;
541
542	local $/;
543
544	my $av;
545
546	#TODO: use sysread etc.
547	if (open my $data, "<:raw:perlio", $filename) {
548	$data = <$data>;
549	if (open my $pst, "<:raw:perlio", "$filename.pst") {
550	$av = eval { (Storable::thaw <$pst>)->{objs} };
551	}
552	return ($data, $av);
553	}
554
555	()
556	}
557
558	attach_to_objects
559	prio => -1000000,	583	prio => -1000000,
		584	on_instantiate => sub {
		585	my ($obj, $data) = @_;
		586
		587	$data = from_json $data;
		588
		589	for (@$data) {
		590	my ($name, $args) = @$_;
		591
		592	$obj->attach ($name, %{$args || {} });
		593	}
		594	},
		595	on_reattach => \&reattach,
560	on_clone => sub {	596	on_clone => sub {
561	my ($src, $dst) = @_;	597	my ($src, $dst) = @_;
562		598
563	@{$dst->registry} = @{$src->registry};	599	@{$dst->registry} = @{$src->registry};
564		600
565	%$dst = %$src;	601	%$dst = %$src;
566		602
567	%{$dst->{_attachment}} = %{$src->{_attachment}}	603	%{$dst->{_attachment}} = %{$src->{_attachment}}
568	if exists $src->{_attachment};	604	if exists $src->{_attachment};
569	},	605	},
570	;	606	);
		607
		608	sub object_freezer_save {
		609	my ($filename, $rdata, $objs) = @_;
		610
		611	sync_job {
		612	if (length $$rdata) {
		613	warn sprintf "saving %s (%d,%d)\n",
		614	$filename, length $$rdata, scalar @$objs;
		615
		616	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		617	chmod SAVE_MODE, $fh;
		618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		619	aio_fsync $fh;
		620	close $fh;
		621
		622	if (@$objs) {
		623	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		624	chmod SAVE_MODE, $fh;
		625	my $data = Storable::nfreeze { version => 1, objs => $objs };
		626	aio_write $fh, 0, (length $data), $data, 0;
		627	aio_fsync $fh;
		628	close $fh;
		629	aio_rename "$filename.pst~", "$filename.pst";
		630	}
		631	} else {
		632	aio_unlink "$filename.pst";
		633	}
		634
		635	aio_rename "$filename~", $filename;
		636	} else {
		637	warn "FATAL: $filename~: $!\n";
		638	}
		639	} else {
		640	aio_unlink $filename;
		641	aio_unlink "$filename.pst";
		642	}
		643	}
		644	}
		645
		646	sub object_freezer_as_string {
		647	my ($rdata, $objs) = @_;
		648
		649	use Data::Dumper;
		650
		651	$$rdata . Dumper $objs
		652	}
		653
		654	sub object_thawer_load {
		655	my ($filename) = @_;
		656
		657	my ($data, $av);
		658
		659	(aio_load $filename, $data) >= 0
		660	or return;
		661
		662	unless (aio_stat "$filename.pst") {
		663	(aio_load "$filename.pst", $av) >= 0
		664	or return;
		665	$av = eval { (Storable::thaw <$av>)->{objs} };
		666	}
		667
		668	return ($data, $av);
		669	}
571		670
572	#############################################################################	671	#############################################################################
573	# command handling &c	672	# command handling &c
574		673
575	=item cf::register_command $name => \&callback($ob,$args);	674	=item cf::register_command $name => \&callback($ob,$args);
…		…
604	#warn "registering extcmd '$name' to '$caller'";	703	#warn "registering extcmd '$name' to '$caller'";
605		704
606	$EXTCMD{$name} = [$cb, $caller];	705	$EXTCMD{$name} = [$cb, $caller];
607	}	706	}
608		707
609	attach_to_players	708	cf::player->attach (
610	on_command => sub {	709	on_command => sub {
611	my ($pl, $name, $params) = @_;	710	my ($pl, $name, $params) = @_;
612		711
613	my $cb = $COMMAND{$name}	712	my $cb = $COMMAND{$name}
614	or return;	713	or return;
…		…
634	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
635	}	734	}
636		735
637	cf::override;	736	cf::override;
638	},	737	},
639	;	738	);
640		739
641	sub register {	740	sub register {
642	my ($base, $pkg) = @_;	741	my ($base, $pkg) = @_;
643		742
644	#TODO	743	#TODO
…		…
713		812
714	Symbol::delete_package $pkg;	813	Symbol::delete_package $pkg;
715	}	814	}
716		815
717	sub load_extensions {	816	sub load_extensions {
718	my $LIBDIR = maps_directory "perl";
719
720	for my $ext (<$LIBDIR/*.ext>) {	817	for my $ext (<$LIBDIR/*.ext>) {
721	next unless -r $ext;	818	next unless -r $ext;
722	eval {	819	eval {
723	load_extension $ext;	820	load_extension $ext;
724	1	821	1
…		…
736	defined $path or return;	833	defined $path or return;
737		834
738	unlink "$path.pst";	835	unlink "$path.pst";
739	};	836	};
740		837
741	attach_to_maps prio => -10000, package => cf::mapsupport::;	838	cf::map->attach (prio => -10000, package => cf::mapsupport::);
742		839
743	#############################################################################	840	#############################################################################
744	# load/save perl data associated with player->ob objects	841	# load/save perl data associated with player->ob objects
745		842
746	sub all_objects(@) {	843	sub all_objects(@) {
747	@_, map all_objects ($_->inv), @_	844	@_, map all_objects ($_->inv), @_
748	}	845	}
749		846
750	# TODO: compatibility cruft, remove when no longer needed	847	# TODO: compatibility cruft, remove when no longer needed
751	attach_to_players	848	cf::player->attach (
752	on_load => sub {	849	on_load => sub {
753	my ($pl, $path) = @_;	850	my ($pl, $path) = @_;
754		851
755	for my $o (all_objects $pl->ob) {	852	for my $o (all_objects $pl->ob) {
756	if (my $value = $o->get_ob_key_value ("_perl_data")) {	853	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
758		855
759	%$o = %{ Storable::thaw pack "H*", $value };	856	%$o = %{ Storable::thaw pack "H*", $value };
760	}	857	}
761	}	858	}
762	},	859	},
763	;	860	);
764		861
765	#############################################################################	862	#############################################################################
766		863
767	=head2 CORE EXTENSIONS	864	=head2 CORE EXTENSIONS
768		865
769	Functions and methods that extend core crossfire objects.	866	Functions and methods that extend core crossfire objects.
		867
		868	=head3 cf::player
770		869
771	=over 4	870	=over 4
772		871
773	=item cf::player::exists $login	872	=item cf::player::exists $login
774		873
…		…
779	sub cf::player::exists($) {	878	sub cf::player::exists($) {
780	cf::player::find $_[0]	879	cf::player::find $_[0]
781	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
782	}	881	}
783		882
		883	=item $player->ext_reply ($msgid, $msgtype, %msg)
		884
		885	Sends an ext reply to the player.
		886
		887	=cut
		888
		889	sub cf::player::ext_reply($$$%) {
		890	my ($self, $id, %msg) = @_;
		891
		892	$msg{msgid} = $id;
		893
		894	$self->send ("ext " . to_json \%msg);
		895	}
		896
		897	=back
		898
		899	=head3 cf::object::player
		900
		901	=over 4
		902
784	=item $player_object->reply ($npc, $msg[, $flags])	903	=item $player_object->reply ($npc, $msg[, $flags])
785		904
786	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	905	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
787	can be C<undef>. Does the right thing when the player is currently in a	906	can be C<undef>. Does the right thing when the player is currently in a
788	dialogue with the given NPC character.	907	dialogue with the given NPC character.
789		908
790	=cut	909	=cut
791		910
792	# rough implementation of a future "reply" method that works	911	# rough implementation of a future "reply" method that works
793	# with dialog boxes.	912	# with dialog boxes.
		913	#TODO: the first argument must go, split into a $npc->reply_to ( method
794	sub cf::object::player::reply($$$;$) {	914	sub cf::object::player::reply($$$;$) {
795	my ($self, $npc, $msg, $flags) = @_;	915	my ($self, $npc, $msg, $flags) = @_;
796		916
797	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
798		918
…		…
802	$msg = $npc->name . " says: $msg" if $npc;	922	$msg = $npc->name . " says: $msg" if $npc;
803	$self->message ($msg, $flags);	923	$self->message ($msg, $flags);
804	}	924	}
805	}	925	}
806		926
807	=item $player->ext_reply ($msgid, $msgtype, %msg)
808
809	Sends an ext reply to the player.
810
811	=cut
812
813	sub cf::player::ext_reply($$$%) {
814	my ($self, $id, %msg) = @_;
815
816	$msg{msgid} = $id;
817
818	$self->send ("ext " . to_json \%msg);
819	}
820
821	=item $player_object->may ("access")	927	=item $player_object->may ("access")
822		928
823	Returns wether the given player is authorized to access resource "access"	929	Returns wether the given player is authorized to access resource "access"
824	(e.g. "command_wizcast").	930	(e.g. "command_wizcast").
825		931
…		…
832	(ref $cf::CFG{"may_$access"}	938	(ref $cf::CFG{"may_$access"}
833	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
834	: $cf::CFG{"may_$access"})	940	: $cf::CFG{"may_$access"})
835	}	941	}
836		942
837	=cut	943	=head3 cf::client
838		944
839	#############################################################################	945	=over 4
		946
		947	=item $client->send_drawinfo ($text, $flags)
		948
		949	Sends a drawinfo packet to the client. Circumvents output buffering so
		950	should not be used under normal circumstances.
		951
		952	=cut
		953
		954	sub cf::client::send_drawinfo {
		955	my ($self, $text, $flags) = @_;
		956
		957	utf8::encode $text;
		958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		959	}
		960
		961
		962	=item $success = $client->query ($flags, "text", \&cb)
		963
		964	Queues a query to the client, calling the given callback with
		965	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		966	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		967
		968	Queries can fail, so check the return code. Or don't, as queries will become
		969	reliable at some point in the future.
		970
		971	=cut
		972
		973	sub cf::client::query {
		974	my ($self, $flags, $text, $cb) = @_;
		975
		976	return unless $self->state == ST_PLAYING
		977	|| $self->state == ST_SETUP
		978	|| $self->state == ST_CUSTOM;
		979
		980	$self->state (ST_CUSTOM);
		981
		982	utf8::encode $text;
		983	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		984
		985	$self->send_packet ($self->{query_queue}[0][0])
		986	if @{ $self->{query_queue} } == 1;
		987	}
		988
		989	cf::client->attach (
		990	on_reply => sub {
		991	my ($ns, $msg) = @_;
		992
		993	# this weird shuffling is so that direct followup queries
		994	# get handled first
		995	my $queue = delete $ns->{query_queue};
		996
		997	(shift @$queue)->[1]->($msg);
		998
		999	push @{ $ns->{query_queue} }, @$queue;
		1000
		1001	if (@{ $ns->{query_queue} } == @$queue) {
		1002	if (@$queue) {
		1003	$ns->send_packet ($ns->{query_queue}[0][0]);
		1004	} else {
		1005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1006	}
		1007	}
		1008	},
		1009	);
		1010
		1011	=item $client->coro (\&cb)
		1012
		1013	Create a new coroutine, running the specified callback. The coroutine will
		1014	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1015	or loss of connection).
		1016
		1017	=cut
		1018
		1019	sub cf::client::coro {
		1020	my ($self, $cb) = @_;
		1021
		1022	my $coro; $coro = async {
		1023	eval {
		1024	$cb->();
		1025	};
		1026	warn $@ if $@;
		1027	};
		1028
		1029	$coro->on_destroy (sub {
		1030	delete $self->{_coro}{$coro+0};
		1031	});
		1032
		1033	$self->{_coro}{$coro+0} = $coro;
		1034
		1035	$coro
		1036	}
		1037
		1038	cf::client->attach (
		1039	on_destroy => sub {
		1040	my ($ns) = @_;
		1041
		1042	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1043	},
		1044	);
		1045
		1046	=back
		1047
840		1048
841	=head2 SAFE SCRIPTING	1049	=head2 SAFE SCRIPTING
842		1050
843	Functions that provide a safe environment to compile and execute	1051	Functions that provide a safe environment to compile and execute
844	snippets of perl code without them endangering the safety of the server	1052	snippets of perl code without them endangering the safety of the server
…		…
859		1067
860	=pod	1068	=pod
861		1069
862	The following fucntions and emthods are available within a safe environment:	1070	The following fucntions and emthods are available within a safe environment:
863		1071
864	cf::object contr pay_amount pay_player	1072	cf::object contr pay_amount pay_player map
865	cf::object::player player	1073	cf::object::player player
866	cf::player peaceful	1074	cf::player peaceful
		1075	cf::map trigger
867		1076
868	=cut	1077	=cut
869		1078
870	for (	1079	for (
871	["cf::object" => qw(contr pay_amount pay_player)],	1080	["cf::object" => qw(contr pay_amount pay_player map)],
872	["cf::object::player" => qw(player)],	1081	["cf::object::player" => qw(player)],
873	["cf::player" => qw(peaceful)],	1082	["cf::player" => qw(peaceful)],
		1083	["cf::map" => qw(trigger)],
874	) {	1084	) {
875	no strict 'refs';	1085	no strict 'refs';
876	my ($pkg, @funs) = @$_;	1086	my ($pkg, @funs) = @$_;
877	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1087	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
878	for @funs;	1088	for @funs;
…		…
1018	sub db_sync() {	1228	sub db_sync() {
1019	db_save if $dirty;	1229	db_save if $dirty;
1020	undef $dirty;	1230	undef $dirty;
1021	}	1231	}
1022		1232
1023	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1233	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1024	db_sync;	1234	db_sync;
1025	});	1235	});
1026		1236
1027	sub db_dirty() {	1237	sub db_dirty() {
1028	$dirty = 1;	1238	$dirty = 1;
…		…
1042	$DB->{$_[0]} = $_[1];	1252	$DB->{$_[0]} = $_[1];
1043	}	1253	}
1044	db_dirty;	1254	db_dirty;
1045	}	1255	}
1046		1256
1047	attach_global	1257	cf::global->attach (
1048	prio => 10000,	1258	prio => 10000,
1049	on_cleanup => sub {	1259	on_cleanup => sub {
1050	db_sync;	1260	db_sync;
1051	},	1261	},
1052	;	1262	);
1053	}	1263	}
1054		1264
1055	#############################################################################	1265	#############################################################################
1056	# the server's main()	1266	# the server's main()
1057		1267
…		…
1071	}	1281	}
1072		1282
1073	#############################################################################	1283	#############################################################################
1074	# initialisation	1284	# initialisation
1075		1285
1076	sub _perl_reload(&) {	1286	sub perl_reload() {
1077	my ($msg) = @_;	1287	# can/must only be called in main
		1288	if ($Coro::current != $Coro::main) {
		1289	warn "can only reload from main coroutine\n";
		1290	return;
		1291	}
1078		1292
1079	$msg->("reloading...");	1293	warn "reloading...";
		1294
		1295	local $FREEZE = 1;
		1296	cf::emergency_save;
1080		1297
1081	eval {	1298	eval {
		1299	# if anything goes wrong in here, we should simply crash as we already saved
		1300
1082	# cancel all watchers	1301	# cancel all watchers
1083	$_->cancel for Event::all_watchers;	1302	for (Event::all_watchers) {
		1303	$_->cancel if $_->data & WF_AUTOCANCEL;
		1304	}
		1305
		1306	# cancel all extension coros
		1307	$_->cancel for values %EXT_CORO;
		1308	%EXT_CORO = ();
1084		1309
1085	# unload all extensions	1310	# unload all extensions
1086	for (@exts) {	1311	for (@exts) {
1087	$msg->("unloading <$_>");	1312	warn "unloading <$_>";
1088	unload_extension $_;	1313	unload_extension $_;
1089	}	1314	}
1090		1315
1091	# unload all modules loaded from $LIBDIR	1316	# unload all modules loaded from $LIBDIR
1092	while (my ($k, $v) = each %INC) {	1317	while (my ($k, $v) = each %INC) {
1093	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1094		1319
1095	$msg->("removing <$k>");	1320	warn "removing <$k>";
1096	delete $INC{$k};	1321	delete $INC{$k};
1097		1322
1098	$k =~ s/\.pm$//;	1323	$k =~ s/\.pm$//;
1099	$k =~ s/\//::/g;	1324	$k =~ s/\//::/g;
1100		1325
…		…
1105	Symbol::delete_package $k;	1330	Symbol::delete_package $k;
1106	}	1331	}
1107		1332
1108	# sync database to disk	1333	# sync database to disk
1109	cf::db_sync;	1334	cf::db_sync;
		1335	IO::AIO::flush;
1110		1336
1111	# get rid of safe::, as good as possible	1337	# get rid of safe::, as good as possible
1112	Symbol::delete_package "safe::$_"	1338	Symbol::delete_package "safe::$_"
1113	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1114		1340
1115	# remove register_script_function callbacks	1341	# remove register_script_function callbacks
1116	# TODO	1342	# TODO
1117		1343
1118	# unload cf.pm "a bit"	1344	# unload cf.pm "a bit"
…		…
1121	# don't, removes xs symbols, too,	1347	# don't, removes xs symbols, too,
1122	# and global variables created in xs	1348	# and global variables created in xs
1123	#Symbol::delete_package __PACKAGE__;	1349	#Symbol::delete_package __PACKAGE__;
1124		1350
1125	# reload cf.pm	1351	# reload cf.pm
1126	$msg->("reloading cf.pm");	1352	warn "reloading cf.pm";
1127	require cf;	1353	require cf;
		1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1128		1355
1129	# load config and database again	1356	# load config and database again
1130	cf::cfg_load;	1357	cf::cfg_load;
1131	cf::db_load;	1358	cf::db_load;
1132		1359
1133	# load extensions	1360	# load extensions
1134	$msg->("load extensions");	1361	warn "load extensions";
1135	cf::load_extensions;	1362	cf::load_extensions;
1136		1363
1137	# reattach attachments to objects	1364	# reattach attachments to objects
1138	$msg->("reattach");	1365	warn "reattach";
1139	_global_reattach;	1366	_global_reattach;
1140	};	1367	};
1141	$msg->($@) if $@;
1142		1368
1143	$msg->("reloaded");	1369	if ($@) {
		1370	warn $@;
		1371	warn "error while reloading, exiting.";
		1372	exit 1;
		1373	}
		1374
		1375	warn "reloaded successfully";
1144	};	1376	};
1145
1146	sub perl_reload() {
1147	_perl_reload {
1148	warn $_[0];
1149	print "$_[0]\n";
1150	};
1151	}
1152		1377
1153	register "<global>", __PACKAGE__;	1378	register "<global>", __PACKAGE__;
1154		1379
1155	register_command "perl-reload" => sub {	1380	register_command "perl-reload" => sub {
1156	my ($who, $arg) = @_;	1381	my ($who, $arg) = @_;
1157		1382
1158	if ($who->flag (FLAG_WIZ)) {	1383	if ($who->flag (FLAG_WIZ)) {
		1384	$who->message ("start of reload.");
1159	_perl_reload {	1385	perl_reload;
1160	warn $_[0];	1386	$who->message ("end of reload.");
1161	$who->message ($_[0]);
1162	};
1163	}	1387	}
1164	};	1388	};
1165		1389
1166	unshift @INC, $LIBDIR;	1390	unshift @INC, $LIBDIR;
1167		1391
1168	$TICK_WATCHER = Event->timer (	1392	$TICK_WATCHER = Event->timer (
		1393	reentrant => 0,
1169	prio => 1,	1394	prio => 0,
1170	async => 1,
1171	at => $NEXT_TICK || 1,	1395	at => $NEXT_TICK || $TICK,
		1396	data => WF_AUTOCANCEL,
1172	cb => sub {	1397	cb => sub {
		1398	unless ($FREEZE) {
1173	cf::server_tick; # one server iteration	1399	cf::server_tick; # one server iteration
		1400	$RUNTIME += $TICK;
		1401	}
1174		1402
1175	my $NOW = Event::time;
1176	$NEXT_TICK += $TICK;	1403	$NEXT_TICK += $TICK;
1177		1404
1178	# if we are delayed by four ticks or more, skip them all	1405	# if we are delayed by four ticks or more, skip them all
1179	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1180		1407
1181	$TICK_WATCHER->at ($NEXT_TICK);	1408	$TICK_WATCHER->at ($NEXT_TICK);
1182	$TICK_WATCHER->start;	1409	$TICK_WATCHER->start;
1183	},	1410	},
1184	);	1411	);
…		…
1186	IO::AIO::max_poll_time $TICK * 0.2;	1413	IO::AIO::max_poll_time $TICK * 0.2;
1187		1414
1188	Event->io (fd => IO::AIO::poll_fileno,	1415	Event->io (fd => IO::AIO::poll_fileno,
1189	poll => 'r',	1416	poll => 'r',
1190	prio => 5,	1417	prio => 5,
		1418	data => WF_AUTOCANCEL,
1191	cb => \&IO::AIO::poll_cb);	1419	cb => \&IO::AIO::poll_cb);
1192		1420
		1421	# we must not ever block the main coroutine
		1422	$Coro::idle = sub {
		1423	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1424	warn "FATAL: Coro::idle was called, major BUG\n";
		1425	(Coro::unblock_sub {
		1426	Event::one_event;
		1427	})->();
		1428	};
		1429
1193	1	1430	1
1194		1431

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