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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.86 by root, Thu Dec 14 05:09:32 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(	130	for my $pkg (qw(
		131	cf::global cf::attachable
82	cf::object cf::object::player	132	cf::object cf::object::player
83	cf::client_socket cf::player	133	cf::client cf::player
84	cf::arch cf::living	134	cf::arch cf::living
85	cf::map cf::party cf::region	135	cf::map cf::party cf::region
86	)) {	136	)) {
87	no strict 'refs';	137	no strict 'refs';
88	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
…		…
124	sub to_json($) {	174	sub to_json($) {
125	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
126	JSON::Syck::Dump $_[0]	176	JSON::Syck::Dump $_[0]
127	}	177	}
128		178
		179	=item cf::sync_job { BLOCK }
		180
		181	The design of crossfire+ requires that the main coro ($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
129	=back	245	=back
130		246
131	=cut	247	=cut
132		248
133	#############################################################################	249	#############################################################################
134		250
135	=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+).
136		260
137	=over 4	261	=over 4
138		262
139	=item $object->attach ($attachment, key => $value...)
140
141	=item $object->detach ($attachment)
142
143	Attach/detach a pre-registered attachment to an object.
144
145	=item $player->attach ($attachment, key => $value...)
146
147	=item $player->detach ($attachment)
148
149	Attach/detach a pre-registered attachment to a player.
150
151	=item $map->attach ($attachment, key => $value...)	263	=item $attachable->attach ($attachment, key => $value...)
152		264
153	=item $map->detach ($attachment)	265	=item $attachable->detach ($attachment)
154		266
155	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.
156		269
157	=item $bool = $object->attached ($name)	270	Example, attach a minesweeper attachment to the given object, making it a
		271	10x10 minesweeper game:
158		272
159	=item $bool = $player->attached ($name)	273	$obj->attach (minesweeper => width => 10, height => 10);
160		274
161	=item $bool = $map->attached ($name)	275	=item $bool = $attachable->attached ($name)
162		276
163	Checks wether the named attachment is currently attached to the object.	277	Checks wether the named attachment is currently attached to the object.
164		278
165	=item cf::attach_global ...	279	=item cf::CLASS->attach ...
166		280
167	Attach handlers for global events.	281	=item cf::CLASS->detach ...
168		282
169	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
170	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:
171		317
172	=over 4	318	=over 4
173		319
174	=item prio => $number	320	=item prio => $number
175		321
…		…
177	by another C<prio> setting). Lower priority handlers get executed	323	by another C<prio> setting). Lower priority handlers get executed
178	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
179	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
180	unless you know what you are doing.	326	unless you know what you are doing.
181		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
182	=item on_I<event> => \&cb	334	=item on_I<event> => \&cb
183		335
184	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
185	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
186	handlers are recognised generally depends on the type of object these	338	handlers are recognised generally depends on the type of object these
…		…
195	package and register them. Only handlers for eevents supported by the	347	package and register them. Only handlers for eevents supported by the
196	object/class are recognised.	348	object/class are recognised.
197		349
198	=back	350	=back
199		351
200	=item cf::attach_to_type $object_type, $subtype, ...	352	Example, define an attachment called "sockpuppet" that calls the given
		353	event handler when a monster attacks:
201		354
202	Attach handlers for a specific object type (e.g. TRANSPORT) and	355	cf::object::attachment sockpuppet =>
203	subtype. If C<$subtype> is zero or undef, matches all objects of the given	356	on_skill_attack => sub {
204	type.	357	my ($self, $victim) = @_;
205		358	...
206	=item cf::attach_to_objects ...
207
208	Attach handlers to all objects. Do not use this except for debugging or
209	very rare events, as handlers are (obviously) called for I<all> objects in
210	the game.
211
212	=item cf::attach_to_players ...
213
214	Attach handlers to all players.
215
216	=item cf::attach_to_maps ...
217
218	Attach handlers to all maps.
219
220	=item cf:register_attachment $name, ...
221
222	Register an attachment by name through which objects can refer to this
223	attachment.
224
225	=item cf:register_player_attachment $name, ...
226
227	Register an attachment by name through which players can refer to this
228	attachment.
229
230	=item cf:register_map_attachment $name, ...
231
232	Register an attachment by name through which maps can refer to this
233	attachment.
234
235	=cut
236
237	# the following variables are defined in .xs and must not be re-created
238	our @CB_GLOBAL = (); # registry for all global events
239	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
240	our @CB_PLAYER = ();
241	our @CB_TYPE = (); # registry for type (cf-object class) based events
242	our @CB_MAP = ();
243
244	my %attachment;
245
246	sub _attach_cb($\%$$$) {
247	my ($registry, $undo, $event, $prio, $cb) = @_;
248
249	use sort 'stable';
250
251	$cb = [$prio, $cb];
252
253	@{$registry->[$event]} = sort
254	{ $a->[0] cmp $b->[0] }
255	@{$registry->[$event] || []}, $cb;
256
257	push @{$undo->{cb}}, [$event, $cb];
258	}
259
260	# attach handles attaching event callbacks
261	# the only thing the caller has to do is pass the correct
262	# registry (== where the callback attaches to).
263	sub _attach(\@$@) {
264	my ($registry, $klass, @arg) = @_;
265
266	my $prio = 0;
267
268	my %undo = (
269	registry => $registry,
270	cb => [],
271	);
272
273	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
274
275	while (@arg) {
276	my $type = shift @arg;
277
278	if ($type eq "prio") {
279	$prio = shift @arg;
280
281	} elsif ($type eq "package") {
282	my $pkg = shift @arg;
283
284	while (my ($name, $id) = each %cb_id) {
285	if (my $cb = $pkg->can ($name)) {
286	_attach_cb $registry, %undo, $id, $prio, $cb;
287	}
288	}	359	}
289
290	} elsif (exists $cb_id{$type}) {
291	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
292
293	} elsif (ref $type) {
294	warn "attaching objects not supported, ignoring.\n";
295
296	} else {
297	shift @arg;
298	warn "attach argument '$type' not supported, ignoring.\n";
299	}
300	}
301
302	\%undo
303	}
304
305	sub _attach_attachment {
306	my ($obj, $name, %arg) = @_;
307
308	return if exists $obj->{_attachment}{$name};
309
310	my $res;
311
312	if (my $attach = $attachment{$name}) {
313	my $registry = $obj->registry;
314
315	for (@$attach) {
316	my ($klass, @attach) = @$_;
317	$res = _attach @$registry, $klass, @attach;
318	}
319
320	$obj->{$name} = \%arg;
321	} else {
322	warn "object uses attachment '$name' that is not available, postponing.\n";
323	}
324
325	$obj->{_attachment}{$name} = undef;
326
327	$res->{attachment} = $name;
328	$res
329	}
330
331	*cf::object::attach =
332	*cf::player::attach =
333	*cf::map::attach = sub {
334	my ($obj, $name, %arg) = @_;
335
336	_attach_attachment $obj, $name, %arg;
337	};
338
339	# all those should be optimised
340	*cf::object::detach =
341	*cf::player::detach =
342	*cf::map::detach = sub {
343	my ($obj, $name) = @_;
344
345	delete $obj->{_attachment}{$name};
346	reattach ($obj);
347	};
348
349	*cf::object::attached =
350	*cf::player::attached =
351	*cf::map::attached = sub {
352	my ($obj, $name) = @_;
353
354	exists $obj->{_attachment}{$name}
355	};
356
357	sub attach_global {
358	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
359	}
360
361	sub attach_to_type {
362	my $type = shift;
363	my $subtype = shift;
364
365	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
366	}
367
368	sub attach_to_objects {
369	_attach @CB_OBJECT, KLASS_OBJECT, @_
370	}
371
372	sub attach_to_players {
373	_attach @CB_PLAYER, KLASS_PLAYER, @_
374	}
375
376	sub attach_to_maps {
377	_attach @CB_MAP, KLASS_MAP, @_
378	}
379
380	sub register_attachment {
381	my $name = shift;
382
383	$attachment{$name} = [[KLASS_OBJECT, @_]];
384	}
385
386	sub register_player_attachment {
387	my $name = shift;
388
389	$attachment{$name} = [[KLASS_PLAYER, @_]];
390	}
391
392	sub register_map_attachment {
393	my $name = shift;
394
395	$attachment{$name} = [[KLASS_MAP, @_]];
396	}
397
398	our $override;
399	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
400
401	sub override {
402	$override = 1;
403	@invoke_results = ();
404	}
405
406	sub do_invoke {
407	my $event = shift;
408	my $callbacks = shift;
409
410	@invoke_results = ();
411
412	local $override;
413
414	for (@$callbacks) {
415	eval { &{$_->[1]} };
416
417	if ($@) {
418	warn "$@";
419	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
420	override;
421	}
422
423	return 1 if $override;
424	}
425
426	0	360	}
427	}
428		361
429	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	362	=item $attachable->valid
430
431	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
432
433	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
434
435	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
436
437	Generate a global/object/player/map-specific event with the given arguments.
438
439	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
440	removed in future versions), and there is no public API to access override
441	results (if you must, access C<@cf::invoke_results> directly).
442
443	=back
444
445	=cut
446
447	#############################################################################
448
449	=head2 METHODS VALID FOR ALL CORE OBJECTS
450
451	=over 4
452
453	=item $object->valid, $player->valid, $map->valid
454		363
455	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
456	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
457	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
458	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
459	exception.	368	exception.
460		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
461	=back	553	=back
462		554
463	=cut	555	=cut
464
465	*cf::object::valid =
466	*cf::player::valid =
467	*cf::map::valid = \&cf::_valid;
468		556
469	#############################################################################	557	#############################################################################
470	# object support	558	# object support
471		559
472	sub instantiate {
473	my ($obj, $data) = @_;
474
475	$data = from_json $data;
476
477	for (@$data) {
478	my ($name, $args) = @$_;
479
480	$obj->attach ($name, %{$args || {} });
481	}
482	}
483
484	# basically do the same as instantiate, without calling instantiate
485	sub reattach {	560	sub reattach {
		561	# basically do the same as instantiate, without calling instantiate
486	my ($obj) = @_;	562	my ($obj) = @_;
		563
487	my $registry = $obj->registry;	564	my $registry = $obj->registry;
488		565
489	@$registry = ();	566	@$registry = ();
490		567
491	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	568	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
492		569
493	for my $name (keys %{ $obj->{_attachment} || {} }) {	570	for my $name (keys %{ $obj->{_attachment} || {} }) {
494	if (my $attach = $attachment{$name}) {	571	if (my $attach = $attachment{$name}) {
495	for (@$attach) {	572	for (@$attach) {
496	my ($klass, @attach) = @$_;	573	my ($klass, @attach) = @$_;
497	_attach @$registry, $klass, @attach;	574	_attach $registry, $klass, @attach;
498	}	575	}
499	} else {	576	} else {
500	warn "object uses attachment '$name' that is not available, postponing.\n";	577	warn "object uses attachment '$name' that is not available, postponing.\n";
501	}	578	}
502	}	579	}
503	}	580	}
504		581
505	sub object_freezer_save {	582	cf::attachable->attach (
506	my ($filename, $rdata, $objs) = @_;
507
508	if (length $$rdata) {
509	warn sprintf "saving %s (%d,%d)\n",
510	$filename, length $$rdata, scalar @$objs;
511
512	if (open my $fh, ">:raw", "$filename~") {
513	chmod SAVE_MODE, $fh;
514	syswrite $fh, $$rdata;
515	close $fh;
516
517	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
518	chmod SAVE_MODE, $fh;
519	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
520	close $fh;
521	rename "$filename.pst~", "$filename.pst";
522	} else {
523	unlink "$filename.pst";
524	}
525
526	rename "$filename~", $filename;
527	} else {
528	warn "FATAL: $filename~: $!\n";
529	}
530	} else {
531	unlink $filename;
532	unlink "$filename.pst";
533	}
534	}
535
536	sub object_freezer_as_string {
537	my ($rdata, $objs) = @_;
538
539	use Data::Dumper;
540
541	$$rdata . Dumper $objs
542	}
543
544	sub object_thawer_load {
545	my ($filename) = @_;
546
547	local $/;
548
549	my $av;
550
551	#TODO: use sysread etc.
552	if (open my $data, "<:raw:perlio", $filename) {
553	$data = <$data>;
554	if (open my $pst, "<:raw:perlio", "$filename.pst") {
555	$av = eval { (Storable::thaw <$pst>)->{objs} };
556	}
557	return ($data, $av);
558	}
559
560	()
561	}
562
563	attach_to_objects
564	prio => -1000000,	583	prio => -1000000,
		584	on_instantiate => sub {
		585	my ($obj, $data) = @_;
		586
		587	$data = from_json $data;
		588
		589	for (@$data) {
		590	my ($name, $args) = @$_;
		591
		592	$obj->attach ($name, %{$args || {} });
		593	}
		594	},
		595	on_reattach => \&reattach,
565	on_clone => sub {	596	on_clone => sub {
566	my ($src, $dst) = @_;	597	my ($src, $dst) = @_;
567		598
568	@{$dst->registry} = @{$src->registry};	599	@{$dst->registry} = @{$src->registry};
569		600
570	%$dst = %$src;	601	%$dst = %$src;
571		602
572	%{$dst->{_attachment}} = %{$src->{_attachment}}	603	%{$dst->{_attachment}} = %{$src->{_attachment}}
573	if exists $src->{_attachment};	604	if exists $src->{_attachment};
574	},	605	},
575	;	606	);
		607
		608	sub object_freezer_save {
		609	my ($filename, $rdata, $objs) = @_;
		610
		611	sync_job {
		612	if (length $$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	}
576		670
577	#############################################################################	671	#############################################################################
578	# command handling &c	672	# command handling &c
579		673
580	=item cf::register_command $name => \&callback($ob,$args);	674	=item cf::register_command $name => \&callback($ob,$args);
…		…
609	#warn "registering extcmd '$name' to '$caller'";	703	#warn "registering extcmd '$name' to '$caller'";
610		704
611	$EXTCMD{$name} = [$cb, $caller];	705	$EXTCMD{$name} = [$cb, $caller];
612	}	706	}
613		707
614	attach_to_players	708	cf::player->attach (
615	on_command => sub {	709	on_command => sub {
616	my ($pl, $name, $params) = @_;	710	my ($pl, $name, $params) = @_;
617		711
618	my $cb = $COMMAND{$name}	712	my $cb = $COMMAND{$name}
619	or return;	713	or return;
…		…
639	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
640	}	734	}
641		735
642	cf::override;	736	cf::override;
643	},	737	},
644	;	738	);
645		739
646	sub register {	740	sub register {
647	my ($base, $pkg) = @_;	741	my ($base, $pkg) = @_;
648		742
649	#TODO	743	#TODO
…		…
718		812
719	Symbol::delete_package $pkg;	813	Symbol::delete_package $pkg;
720	}	814	}
721		815
722	sub load_extensions {	816	sub load_extensions {
723	my $LIBDIR = maps_directory "perl";
724
725	for my $ext (<$LIBDIR/*.ext>) {	817	for my $ext (<$LIBDIR/*.ext>) {
726	next unless -r $ext;	818	next unless -r $ext;
727	eval {	819	eval {
728	load_extension $ext;	820	load_extension $ext;
729	1	821	1
…		…
741	defined $path or return;	833	defined $path or return;
742		834
743	unlink "$path.pst";	835	unlink "$path.pst";
744	};	836	};
745		837
746	attach_to_maps prio => -10000, package => cf::mapsupport::;	838	cf::map->attach (prio => -10000, package => cf::mapsupport::);
747		839
748	#############################################################################	840	#############################################################################
749	# load/save perl data associated with player->ob objects	841	# load/save perl data associated with player->ob objects
750		842
751	sub all_objects(@) {	843	sub all_objects(@) {
752	@_, map all_objects ($_->inv), @_	844	@_, map all_objects ($_->inv), @_
753	}	845	}
754		846
755	# TODO: compatibility cruft, remove when no longer needed	847	# TODO: compatibility cruft, remove when no longer needed
756	attach_to_players	848	cf::player->attach (
757	on_load => sub {	849	on_load => sub {
758	my ($pl, $path) = @_;	850	my ($pl, $path) = @_;
759		851
760	for my $o (all_objects $pl->ob) {	852	for my $o (all_objects $pl->ob) {
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	853	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
763		855
764	%$o = %{ Storable::thaw pack "H*", $value };	856	%$o = %{ Storable::thaw pack "H*", $value };
765	}	857	}
766	}	858	}
767	},	859	},
768	;	860	);
769		861
770	#############################################################################	862	#############################################################################
771		863
772	=head2 CORE EXTENSIONS	864	=head2 CORE EXTENSIONS
773		865
774	Functions and methods that extend core crossfire objects.	866	Functions and methods that extend core crossfire objects.
		867
		868	=head3 cf::player
775		869
776	=over 4	870	=over 4
777		871
778	=item cf::player::exists $login	872	=item cf::player::exists $login
779		873
…		…
784	sub cf::player::exists($) {	878	sub cf::player::exists($) {
785	cf::player::find $_[0]	879	cf::player::find $_[0]
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
787	}	881	}
788		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($$$%) {
		890	my ($self, $id, %msg) = @_;
		891
		892	$msg{msgid} = $id;
		893
		894	$self->send ("ext " . to_json \%msg);
		895	}
		896
		897	=back
		898
		899	=head3 cf::object::player
		900
		901	=over 4
		902
789	=item $player_object->reply ($npc, $msg[, $flags])	903	=item $player_object->reply ($npc, $msg[, $flags])
790		904
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	905	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
792	can be C<undef>. Does the right thing when the player is currently in a	906	can be C<undef>. Does the right thing when the player is currently in a
793	dialogue with the given NPC character.	907	dialogue with the given NPC character.
794		908
795	=cut	909	=cut
796		910
797	# rough implementation of a future "reply" method that works	911	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	912	# with dialog boxes.
		913	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	914	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	915	my ($self, $npc, $msg, $flags) = @_;
801		916
802	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
803		918
…		…
807	$msg = $npc->name . " says: $msg" if $npc;	922	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	923	$self->message ($msg, $flags);
809	}	924	}
810	}	925	}
811		926
812	=item $player->ext_reply ($msgid, $msgtype, %msg)
813
814	Sends an ext reply to the player.
815
816	=cut
817
818	sub cf::player::ext_reply($$$%) {
819	my ($self, $id, %msg) = @_;
820
821	$msg{msgid} = $id;
822
823	$self->send ("ext " . to_json \%msg);
824	}
825
826	=item $player_object->may ("access")	927	=item $player_object->may ("access")
827		928
828	Returns wether the given player is authorized to access resource "access"	929	Returns wether the given player is authorized to access resource "access"
829	(e.g. "command_wizcast").	930	(e.g. "command_wizcast").
830		931
…		…
837	(ref $cf::CFG{"may_$access"}	938	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	940	: $cf::CFG{"may_$access"})
840	}	941	}
841		942
842	=cut	943	=head3 cf::client
843		944
844	#############################################################################	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 $ns->{_coro}) || {} };
		1043	},
		1044	);
		1045
		1046	=back
		1047
845		1048
846	=head2 SAFE SCRIPTING	1049	=head2 SAFE SCRIPTING
847		1050
848	Functions that provide a safe environment to compile and execute	1051	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	1052	snippets of perl code without them endangering the safety of the server
…		…
864		1067
865	=pod	1068	=pod
866		1069
867	The following fucntions and emthods are available within a safe environment:	1070	The following fucntions and emthods are available within a safe environment:
868		1071
869	cf::object contr pay_amount pay_player	1072	cf::object contr pay_amount pay_player map
870	cf::object::player player	1073	cf::object::player player
871	cf::player peaceful	1074	cf::player peaceful
		1075	cf::map trigger
872		1076
873	=cut	1077	=cut
874		1078
875	for (	1079	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	1080	["cf::object" => qw(contr pay_amount pay_player map)],
877	["cf::object::player" => qw(player)],	1081	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	1082	["cf::player" => qw(peaceful)],
		1083	["cf::map" => qw(trigger)],
879	) {	1084	) {
880	no strict 'refs';	1085	no strict 'refs';
881	my ($pkg, @funs) = @$_;	1086	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1087	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	1088	for @funs;
…		…
1023	sub db_sync() {	1228	sub db_sync() {
1024	db_save if $dirty;	1229	db_save if $dirty;
1025	undef $dirty;	1230	undef $dirty;
1026	}	1231	}
1027		1232
1028	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 {
1029	db_sync;	1234	db_sync;
1030	});	1235	});
1031		1236
1032	sub db_dirty() {	1237	sub db_dirty() {
1033	$dirty = 1;	1238	$dirty = 1;
…		…
1047	$DB->{$_[0]} = $_[1];	1252	$DB->{$_[0]} = $_[1];
1048	}	1253	}
1049	db_dirty;	1254	db_dirty;
1050	}	1255	}
1051		1256
1052	attach_global	1257	cf::global->attach (
1053	prio => 10000,	1258	prio => 10000,
1054	on_cleanup => sub {	1259	on_cleanup => sub {
1055	db_sync;	1260	db_sync;
1056	},	1261	},
1057	;	1262	);
1058	}	1263	}
1059		1264
1060	#############################################################################	1265	#############################################################################
1061	# the server's main()	1266	# the server's main()
1062		1267
…		…
1076	}	1281	}
1077		1282
1078	#############################################################################	1283	#############################################################################
1079	# initialisation	1284	# initialisation
1080		1285
1081	sub _perl_reload(&) {	1286	sub perl_reload() {
1082	my ($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	}
1083		1292
1084	$msg->("reloading...");	1293	warn "reloading...";
		1294
		1295	local $FREEZE = 1;
		1296	cf::emergency_save;
1085		1297
1086	eval {	1298	eval {
		1299	# if anything goes wrong in here, we should simply crash as we already saved
		1300
1087	# cancel all watchers	1301	# cancel all watchers
1088	$_->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 = ();
1089		1309
1090	# unload all extensions	1310	# unload all extensions
1091	for (@exts) {	1311	for (@exts) {
1092	$msg->("unloading <$_>");	1312	warn "unloading <$_>";
1093	unload_extension $_;	1313	unload_extension $_;
1094	}	1314	}
1095		1315
1096	# unload all modules loaded from $LIBDIR	1316	# unload all modules loaded from $LIBDIR
1097	while (my ($k, $v) = each %INC) {	1317	while (my ($k, $v) = each %INC) {
1098	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1099		1319
1100	$msg->("removing <$k>");	1320	warn "removing <$k>";
1101	delete $INC{$k};	1321	delete $INC{$k};
1102		1322
1103	$k =~ s/\.pm$//;	1323	$k =~ s/\.pm$//;
1104	$k =~ s/\//::/g;	1324	$k =~ s/\//::/g;
1105		1325
…		…
1110	Symbol::delete_package $k;	1330	Symbol::delete_package $k;
1111	}	1331	}
1112		1332
1113	# sync database to disk	1333	# sync database to disk
1114	cf::db_sync;	1334	cf::db_sync;
		1335	IO::AIO::flush;
1115		1336
1116	# get rid of safe::, as good as possible	1337	# get rid of safe::, as good as possible
1117	Symbol::delete_package "safe::$_"	1338	Symbol::delete_package "safe::$_"
1118	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);
1119		1340
1120	# remove register_script_function callbacks	1341	# remove register_script_function callbacks
1121	# TODO	1342	# TODO
1122		1343
1123	# unload cf.pm "a bit"	1344	# unload cf.pm "a bit"
…		…
1126	# don't, removes xs symbols, too,	1347	# don't, removes xs symbols, too,
1127	# and global variables created in xs	1348	# and global variables created in xs
1128	#Symbol::delete_package __PACKAGE__;	1349	#Symbol::delete_package __PACKAGE__;
1129		1350
1130	# reload cf.pm	1351	# reload cf.pm
1131	$msg->("reloading cf.pm");	1352	warn "reloading cf.pm";
1132	require cf;	1353	require cf;
		1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1133		1355
1134	# load config and database again	1356	# load config and database again
1135	cf::cfg_load;	1357	cf::cfg_load;
1136	cf::db_load;	1358	cf::db_load;
1137		1359
1138	# load extensions	1360	# load extensions
1139	$msg->("load extensions");	1361	warn "load extensions";
1140	cf::load_extensions;	1362	cf::load_extensions;
1141		1363
1142	# reattach attachments to objects	1364	# reattach attachments to objects
1143	$msg->("reattach");	1365	warn "reattach";
1144	_global_reattach;	1366	_global_reattach;
1145	};	1367	};
1146	$msg->($@) if $@;
1147		1368
1148	$msg->("reloaded");	1369	if ($@) {
		1370	warn $@;
		1371	warn "error while reloading, exiting.";
		1372	exit 1;
		1373	}
		1374
		1375	warn "reloaded successfully";
1149	};	1376	};
1150
1151	sub perl_reload() {
1152	_perl_reload {
1153	warn $_[0];
1154	print "$_[0]\n";
1155	};
1156	}
1157		1377
1158	register "<global>", __PACKAGE__;	1378	register "<global>", __PACKAGE__;
1159		1379
1160	register_command "perl-reload" => sub {	1380	register_command "perl-reload" => sub {
1161	my ($who, $arg) = @_;	1381	my ($who, $arg) = @_;
1162		1382
1163	if ($who->flag (FLAG_WIZ)) {	1383	if ($who->flag (FLAG_WIZ)) {
		1384	$who->message ("start of reload.");
1164	_perl_reload {	1385	perl_reload;
1165	warn $_[0];	1386	$who->message ("end of reload.");
1166	$who->message ($_[0]);
1167	};
1168	}	1387	}
1169	};	1388	};
1170		1389
1171	unshift @INC, $LIBDIR;	1390	unshift @INC, $LIBDIR;
1172		1391
1173	$TICK_WATCHER = Event->timer (	1392	$TICK_WATCHER = Event->timer (
		1393	reentrant => 0,
1174	prio => 1,	1394	prio => 0,
1175	async => 1,
1176	at => $NEXT_TICK || 1,	1395	at => $NEXT_TICK || $TICK,
		1396	data => WF_AUTOCANCEL,
1177	cb => sub {	1397	cb => sub {
		1398	unless ($FREEZE) {
1178	cf::server_tick; # one server iteration	1399	cf::server_tick; # one server iteration
		1400	$RUNTIME += $TICK;
		1401	}
1179		1402
1180	my $NOW = Event::time;
1181	$NEXT_TICK += $TICK;	1403	$NEXT_TICK += $TICK;
1182		1404
1183	# 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
1184	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1185		1407
1186	$TICK_WATCHER->at ($NEXT_TICK);	1408	$TICK_WATCHER->at ($NEXT_TICK);
1187	$TICK_WATCHER->start;	1409	$TICK_WATCHER->start;
1188	},	1410	},
1189	);	1411	);
…		…
1191	IO::AIO::max_poll_time $TICK * 0.2;	1413	IO::AIO::max_poll_time $TICK * 0.2;
1192		1414
1193	Event->io (fd => IO::AIO::poll_fileno,	1415	Event->io (fd => IO::AIO::poll_fileno,
1194	poll => 'r',	1416	poll => 'r',
1195	prio => 5,	1417	prio => 5,
		1418	data => WF_AUTOCANCEL,
1196	cb => \&IO::AIO::poll_cb);	1419	cb => \&IO::AIO::poll_cb);
1197		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
1198	1	1430	1
1199		1431

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