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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.83 by root, Mon Dec 11 01:30:41 2006 UTC vs.
Revision 1.106 by root, Sun Dec 31 17:29:22 2006 UTC

1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Fcntl;
10	use IO::AIO ();	21	use IO::AIO 2.31 ();
11	use YAML::Syck ();	22	use YAML::Syck ();
12	use Time::HiRes;	23	use Time::HiRes;
13	use Event;	24
14	$Event::Eval = 1; # no idea why this is required, but it is	25	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		26
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	28	$YAML::Syck::ImplicitUnicode = 1;
18		29
19	use strict;	30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
20		31
21	_init_vars;	32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		33
23	our %COMMAND = ();	34	our %COMMAND = ();
		35	our %COMMAND_TIME = ();
		36	our %EXTCMD = ();
		37
24	our @EVENT;	38	our @EVENT;
25	our $LIBDIR = maps_directory "perl";	39	our $LIBDIR = datadir . "/ext";
26		40
27	our $TICK = MAX_TIME * 1e-6;	41	our $TICK = MAX_TIME * 1e-6;
28	our $TICK_WATCHER;	42	our $TICK_WATCHER;
29	our $NEXT_TICK;	43	our $NEXT_TICK;
		44	our $NOW;
30		45
31	our %CFG;	46	our %CFG;
32		47
33	our $uptime;#d#	48	our $UPTIME; $UPTIME ||= time;
34	our $UPTIME;	49	our $RUNTIME;
35	$UPTIME ||= $uptime;#d#	50
36	$UPTIME ||= time;	51	our %MAP; # all maps
		52	our $LINK_MAP; # the special {link} map
		53	our $FREEZE;
		54
		55	binmode STDOUT;
		56	binmode STDERR;
		57
		58	# read virtual server time, if available
		59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		60	open my $fh, "<", cf::localdir . "/runtime"
		61	or die "unable to read runtime file: $!";
		62	$RUNTIME = <$fh> + 0.;
		63	}
		64
		65	mkdir cf::localdir;
		66	mkdir cf::localdir . "/" . cf::playerdir;
		67	mkdir cf::localdir . "/" . cf::tmpdir;
		68	mkdir cf::localdir . "/" . cf::uniquedir;
		69
		70	our %EXT_CORO;
37		71
38	#############################################################################	72	#############################################################################
39		73
40	=head2 GLOBAL VARIABLES	74	=head2 GLOBAL VARIABLES
41		75
42	=over 4	76	=over 4
43		77
44	=item $cf::UPTIME	78	=item $cf::UPTIME
45		79
46	The timestamp of the server start (so not actually an uptime).	80	The timestamp of the server start (so not actually an uptime).
		81
		82	=item $cf::RUNTIME
		83
		84	The time this server has run, starts at 0 and is increased by $cf::TICK on
		85	every server tick.
47		86
48	=item $cf::LIBDIR	87	=item $cf::LIBDIR
49		88
50	The perl library directory, where extensions and cf-specific modules can	89	The perl library directory, where extensions and cf-specific modules can
51	be found. It will be added to C<@INC> automatically.	90	be found. It will be added to C<@INC> automatically.
		91
		92	=item $cf::NOW
		93
		94	The time of the last (current) server tick.
52		95
53	=item $cf::TICK	96	=item $cf::TICK
54		97
55	The interval between server ticks, in seconds.	98	The interval between server ticks, in seconds.
56		99
…		…
64	=cut	107	=cut
65		108
66	BEGIN {	109	BEGIN {
67	*CORE::GLOBAL::warn = sub {	110	*CORE::GLOBAL::warn = sub {
68	my $msg = join "", @_;	111	my $msg = join "", @_;
		112	utf8::encode $msg;
		113
69	$msg .= "\n"	114	$msg .= "\n"
70	unless $msg =~ /\n$/;	115	unless $msg =~ /\n$/;
71		116
72	print STDERR "cfperl: $msg";
73	LOG llevError, "cfperl: $msg";	117	LOG llevError, "cfperl: $msg";
74	};	118	};
75	}	119	}
76		120
		121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
78		127
79	# we bless all objects into (empty) derived classes to force a method lookup	128	# we bless all objects into (empty) derived classes to force a method lookup
80	# within the Safe compartment.	129	# within the Safe compartment.
81	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	130	for my $pkg (qw(
		131	cf::global cf::attachable
		132	cf::object cf::object::player
		133	cf::client cf::player
		134	cf::arch cf::living
		135	cf::map cf::party cf::region
		136	)) {
82	no strict 'refs';	137	no strict 'refs';
83	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
84	}	139	}
85		140
86	$Event::DIED = sub {	141	$Event::DIED = sub {
…		…
88	};	143	};
89		144
90	my %ext_pkg;	145	my %ext_pkg;
91	my @exts;	146	my @exts;
92	my @hook;	147	my @hook;
93	my %command;
94	my %extcmd;
95		148
96	=head2 UTILITY FUNCTIONS	149	=head2 UTILITY FUNCTIONS
97		150
98	=over 4	151	=over 4
99		152
…		…
121	sub to_json($) {	174	sub to_json($) {
122	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
123	JSON::Syck::Dump $_[0]	176	JSON::Syck::Dump $_[0]
124	}	177	}
125		178
		179	=item cf::sync_job { BLOCK }
		180
		181	The design of crossfire+ requires that the main coro ($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
126	=back	245	=back
127		246
128	=cut	247	=cut
129		248
130	#############################################################################	249	#############################################################################
131		250
132	=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+).
133		260
134	=over 4	261	=over 4
135		262
136	=item $object->attach ($attachment, key => $value...)
137
138	=item $object->detach ($attachment)
139
140	Attach/detach a pre-registered attachment to an object.
141
142	=item $player->attach ($attachment, key => $value...)
143
144	=item $player->detach ($attachment)
145
146	Attach/detach a pre-registered attachment to a player.
147
148	=item $map->attach ($attachment, key => $value...)	263	=item $attachable->attach ($attachment, key => $value...)
149		264
150	=item $map->detach ($attachment)	265	=item $attachable->detach ($attachment)
151		266
152	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.
153		269
154	=item $bool = $object->attached ($name)	270	Example, attach a minesweeper attachment to the given object, making it a
		271	10x10 minesweeper game:
155		272
156	=item $bool = $player->attached ($name)	273	$obj->attach (minesweeper => width => 10, height => 10);
157		274
158	=item $bool = $map->attached ($name)	275	=item $bool = $attachable->attached ($name)
159		276
160	Checks wether the named attachment is currently attached to the object.	277	Checks wether the named attachment is currently attached to the object.
161		278
162	=item cf::attach_global ...	279	=item cf::CLASS->attach ...
163		280
164	Attach handlers for global events.	281	=item cf::CLASS->detach ...
165		282
166	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
167	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:
168		317
169	=over 4	318	=over 4
170		319
171	=item prio => $number	320	=item prio => $number
172		321
…		…
174	by another C<prio> setting). Lower priority handlers get executed	323	by another C<prio> setting). Lower priority handlers get executed
175	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
176	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
177	unless you know what you are doing.	326	unless you know what you are doing.
178		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
179	=item on_I<event> => \&cb	334	=item on_I<event> => \&cb
180		335
181	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
182	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
183	handlers are recognised generally depends on the type of object these	338	handlers are recognised generally depends on the type of object these
…		…
192	package and register them. Only handlers for eevents supported by the	347	package and register them. Only handlers for eevents supported by the
193	object/class are recognised.	348	object/class are recognised.
194		349
195	=back	350	=back
196		351
197	=item cf::attach_to_type $object_type, $subtype, ...	352	Example, define an attachment called "sockpuppet" that calls the given
		353	event handler when a monster attacks:
198		354
199	Attach handlers for a specific object type (e.g. TRANSPORT) and	355	cf::object::attachment sockpuppet =>
200	subtype. If C<$subtype> is zero or undef, matches all objects of the given	356	on_skill_attack => sub {
201	type.	357	my ($self, $victim) = @_;
202		358	...
203	=item cf::attach_to_objects ...
204
205	Attach handlers to all objects. Do not use this except for debugging or
206	very rare events, as handlers are (obviously) called for I<all> objects in
207	the game.
208
209	=item cf::attach_to_players ...
210
211	Attach handlers to all players.
212
213	=item cf::attach_to_maps ...
214
215	Attach handlers to all maps.
216
217	=item cf:register_attachment $name, ...
218
219	Register an attachment by name through which objects can refer to this
220	attachment.
221
222	=item cf:register_player_attachment $name, ...
223
224	Register an attachment by name through which players can refer to this
225	attachment.
226
227	=item cf:register_map_attachment $name, ...
228
229	Register an attachment by name through which maps can refer to this
230	attachment.
231
232	=cut
233
234	# the following variables are defined in .xs and must not be re-created
235	our @CB_GLOBAL = (); # registry for all global events
236	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
237	our @CB_PLAYER = ();
238	our @CB_TYPE = (); # registry for type (cf-object class) based events
239	our @CB_MAP = ();
240
241	my %attachment;
242
243	sub _attach_cb($\%$$$) {
244	my ($registry, $undo, $event, $prio, $cb) = @_;
245
246	use sort 'stable';
247
248	$cb = [$prio, $cb];
249
250	@{$registry->[$event]} = sort
251	{ $a->[0] cmp $b->[0] }
252	@{$registry->[$event] || []}, $cb;
253
254	push @{$undo->{cb}}, [$event, $cb];
255	}
256
257	# attach handles attaching event callbacks
258	# the only thing the caller has to do is pass the correct
259	# registry (== where the callback attaches to).
260	sub _attach(\@$@) {
261	my ($registry, $klass, @arg) = @_;
262
263	my $prio = 0;
264
265	my %undo = (
266	registry => $registry,
267	cb => [],
268	);
269
270	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
271
272	while (@arg) {
273	my $type = shift @arg;
274
275	if ($type eq "prio") {
276	$prio = shift @arg;
277
278	} elsif ($type eq "package") {
279	my $pkg = shift @arg;
280
281	while (my ($name, $id) = each %cb_id) {
282	if (my $cb = $pkg->can ($name)) {
283	_attach_cb $registry, %undo, $id, $prio, $cb;
284	}
285	}	359	}
286
287	} elsif (exists $cb_id{$type}) {
288	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
289
290	} elsif (ref $type) {
291	warn "attaching objects not supported, ignoring.\n";
292
293	} else {
294	shift @arg;
295	warn "attach argument '$type' not supported, ignoring.\n";
296	}
297	}
298
299	\%undo
300	}
301
302	sub _attach_attachment {
303	my ($obj, $name, %arg) = @_;
304
305	return if exists $obj->{_attachment}{$name};
306
307	my $res;
308
309	if (my $attach = $attachment{$name}) {
310	my $registry = $obj->registry;
311
312	for (@$attach) {
313	my ($klass, @attach) = @$_;
314	$res = _attach @$registry, $klass, @attach;
315	}
316
317	$obj->{$name} = \%arg;
318	} else {
319	warn "object uses attachment '$name' that is not available, postponing.\n";
320	}
321
322	$obj->{_attachment}{$name} = undef;
323
324	$res->{attachment} = $name;
325	$res
326	}
327
328	*cf::object::attach =
329	*cf::player::attach =
330	*cf::map::attach = sub {
331	my ($obj, $name, %arg) = @_;
332
333	_attach_attachment $obj, $name, %arg;
334	};
335
336	# all those should be optimised
337	*cf::object::detach =
338	*cf::player::detach =
339	*cf::map::detach = sub {
340	my ($obj, $name) = @_;
341
342	delete $obj->{_attachment}{$name};
343	reattach ($obj);
344	};
345
346	*cf::object::attached =
347	*cf::player::attached =
348	*cf::map::attached = sub {
349	my ($obj, $name) = @_;
350
351	exists $obj->{_attachment}{$name}
352	};
353
354	sub attach_global {
355	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
356	}
357
358	sub attach_to_type {
359	my $type = shift;
360	my $subtype = shift;
361
362	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
363	}
364
365	sub attach_to_objects {
366	_attach @CB_OBJECT, KLASS_OBJECT, @_
367	}
368
369	sub attach_to_players {
370	_attach @CB_PLAYER, KLASS_PLAYER, @_
371	}
372
373	sub attach_to_maps {
374	_attach @CB_MAP, KLASS_MAP, @_
375	}
376
377	sub register_attachment {
378	my $name = shift;
379
380	$attachment{$name} = [[KLASS_OBJECT, @_]];
381	}
382
383	sub register_player_attachment {
384	my $name = shift;
385
386	$attachment{$name} = [[KLASS_PLAYER, @_]];
387	}
388
389	sub register_map_attachment {
390	my $name = shift;
391
392	$attachment{$name} = [[KLASS_MAP, @_]];
393	}
394
395	our $override;
396	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
397
398	sub override {
399	$override = 1;
400	@invoke_results = ();
401	}
402
403	sub do_invoke {
404	my $event = shift;
405	my $callbacks = shift;
406
407	@invoke_results = ();
408
409	local $override;
410
411	for (@$callbacks) {
412	eval { &{$_->[1]} };
413
414	if ($@) {
415	warn "$@";
416	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
417	override;
418	}
419
420	return 1 if $override;
421	}
422
423	0	360	}
424	}
425		361
426	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	362	=item $attachable->valid
427
428	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
429
430	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
431
432	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
433
434	Generate a global/object/player/map-specific event with the given arguments.
435
436	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
437	removed in future versions), and there is no public API to access override
438	results (if you must, access C<@cf::invoke_results> directly).
439
440	=back
441
442	=cut
443
444	#############################################################################
445
446	=head2 METHODS VALID FOR ALL CORE OBJECTS
447
448	=over 4
449
450	=item $object->valid, $player->valid, $map->valid
451		363
452	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
453	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
454	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
455	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
456	exception.	368	exception.
457		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
458	=back	553	=back
459		554
460	=cut	555	=cut
461
462	*cf::object::valid =
463	*cf::player::valid =
464	*cf::map::valid = \&cf::_valid;
465		556
466	#############################################################################	557	#############################################################################
467	# object support	558	# object support
468		559
469	sub instantiate {
470	my ($obj, $data) = @_;
471
472	$data = from_json $data;
473
474	for (@$data) {
475	my ($name, $args) = @$_;
476
477	$obj->attach ($name, %{$args || {} });
478	}
479	}
480
481	# basically do the same as instantiate, without calling instantiate
482	sub reattach {	560	sub reattach {
		561	# basically do the same as instantiate, without calling instantiate
483	my ($obj) = @_;	562	my ($obj) = @_;
		563
484	my $registry = $obj->registry;	564	my $registry = $obj->registry;
485		565
486	@$registry = ();	566	@$registry = ();
487		567
488	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	568	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
489		569
490	for my $name (keys %{ $obj->{_attachment} || {} }) {	570	for my $name (keys %{ $obj->{_attachment} || {} }) {
491	if (my $attach = $attachment{$name}) {	571	if (my $attach = $attachment{$name}) {
492	for (@$attach) {	572	for (@$attach) {
493	my ($klass, @attach) = @$_;	573	my ($klass, @attach) = @$_;
494	_attach @$registry, $klass, @attach;	574	_attach $registry, $klass, @attach;
495	}	575	}
496	} else {	576	} else {
497	warn "object uses attachment '$name' that is not available, postponing.\n";	577	warn "object uses attachment '$name' that is not available, postponing.\n";
498	}	578	}
499	}	579	}
500	}	580	}
501		581
502	sub object_freezer_save {	582	cf::attachable->attach (
503	my ($filename, $rdata, $objs) = @_;
504
505	if (length $$rdata) {
506	warn sprintf "saving %s (%d,%d)\n",
507	$filename, length $$rdata, scalar @$objs;
508
509	if (open my $fh, ">:raw", "$filename~") {
510	chmod SAVE_MODE, $fh;
511	syswrite $fh, $$rdata;
512	close $fh;
513
514	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
517	close $fh;
518	rename "$filename.pst~", "$filename.pst";
519	} else {
520	unlink "$filename.pst";
521	}
522
523	rename "$filename~", $filename;
524	} else {
525	warn "FATAL: $filename~: $!\n";
526	}
527	} else {
528	unlink $filename;
529	unlink "$filename.pst";
530	}
531	}
532
533	sub object_freezer_as_string {
534	my ($rdata, $objs) = @_;
535
536	use Data::Dumper;
537
538	$$rdata . Dumper $objs
539	}
540
541	sub object_thawer_load {
542	my ($filename) = @_;
543
544	local $/;
545
546	my $av;
547
548	#TODO: use sysread etc.
549	if (open my $data, "<:raw:perlio", $filename) {
550	$data = <$data>;
551	if (open my $pst, "<:raw:perlio", "$filename.pst") {
552	$av = eval { (Storable::thaw <$pst>)->{objs} };
553	}
554	return ($data, $av);
555	}
556
557	()
558	}
559
560	attach_to_objects
561	prio => -1000000,	583	prio => -1000000,
		584	on_instantiate => sub {
		585	my ($obj, $data) = @_;
		586
		587	$data = from_json $data;
		588
		589	for (@$data) {
		590	my ($name, $args) = @$_;
		591
		592	$obj->attach ($name, %{$args || {} });
		593	}
		594	},
		595	on_reattach => \&reattach,
562	on_clone => sub {	596	on_clone => sub {
563	my ($src, $dst) = @_;	597	my ($src, $dst) = @_;
564		598
565	@{$dst->registry} = @{$src->registry};	599	@{$dst->registry} = @{$src->registry};
566		600
567	%$dst = %$src;	601	%$dst = %$src;
568		602
569	%{$dst->{_attachment}} = %{$src->{_attachment}}	603	%{$dst->{_attachment}} = %{$src->{_attachment}}
570	if exists $src->{_attachment};	604	if exists $src->{_attachment};
571	},	605	},
572	;	606	);
		607
		608	sub object_freezer_save {
		609	my ($filename, $rdata, $objs) = @_;
		610
		611	sync_job {
		612	if (length $$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	}
573		670
574	#############################################################################	671	#############################################################################
575	# old plug-in events	672	# command handling &c
576		673
577	sub inject_event {	674	=item cf::register_command $name => \&callback($ob,$args);
578	my $extension = shift;
579	my $event_code = shift;
580		675
581	my $cb = $hook[$event_code]{$extension}	676	Register a callback for execution when the client sends the user command
582	or return;	677	$name.
583		678
584	&$cb	679	=cut
585	}
586
587	sub inject_global_event {
588	my $event = shift;
589
590	my $cb = $hook[$event]
591	or return;
592
593	List::Util::max map &$_, values %$cb
594	}
595
596	sub inject_command {
597	my ($name, $obj, $params) = @_;
598
599	for my $cmd (@{ $command{$name} }) {
600	$cmd->[1]->($obj, $params);
601	}
602
603	-1
604	}
605		680
606	sub register_command {	681	sub register_command {
607	my ($name, $time, $cb) = @_;	682	my ($name, $cb) = @_;
608		683
609	my $caller = caller;	684	my $caller = caller;
610	#warn "registering command '$name/$time' to '$caller'";	685	#warn "registering command '$name/$time' to '$caller'";
611		686
612	push @{ $command{$name} }, [$time, $cb, $caller];	687	push @{ $COMMAND{$name} }, [$caller, $cb];
613	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
614	}	688	}
		689
		690	=item cf::register_extcmd $name => \&callback($pl,$packet);
		691
		692	Register a callbackf ro execution when the client sends an extcmd packet.
		693
		694	If the callback returns something, it is sent back as if reply was being
		695	called.
		696
		697	=cut
615		698
616	sub register_extcmd {	699	sub register_extcmd {
617	my ($name, $cb) = @_;	700	my ($name, $cb) = @_;
618		701
619	my $caller = caller;	702	my $caller = caller;
620	#warn "registering extcmd '$name' to '$caller'";	703	#warn "registering extcmd '$name' to '$caller'";
621		704
622	$extcmd{$name} = [$cb, $caller];	705	$EXTCMD{$name} = [$cb, $caller];
623	}	706	}
		707
		708	cf::player->attach (
		709	on_command => sub {
		710	my ($pl, $name, $params) = @_;
		711
		712	my $cb = $COMMAND{$name}
		713	or return;
		714
		715	for my $cmd (@$cb) {
		716	$cmd->[1]->($pl->ob, $params);
		717	}
		718
		719	cf::override;
		720	},
		721	on_extcmd => sub {
		722	my ($pl, $buf) = @_;
		723
		724	my $msg = eval { from_json $buf };
		725
		726	if (ref $msg) {
		727	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		728	if (my %reply = $cb->[0]->($pl, $msg)) {
		729	$pl->ext_reply ($msg->{msgid}, %reply);
		730	}
		731	}
		732	} else {
		733	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		734	}
		735
		736	cf::override;
		737	},
		738	);
624		739
625	sub register {	740	sub register {
626	my ($base, $pkg) = @_;	741	my ($base, $pkg) = @_;
627		742
628	#TODO	743	#TODO
…		…
671	# for my $idx (0 .. $#PLUGIN_EVENT) {	786	# for my $idx (0 .. $#PLUGIN_EVENT) {
672	# delete $hook[$idx]{$pkg};	787	# delete $hook[$idx]{$pkg};
673	# }	788	# }
674		789
675	# remove commands	790	# remove commands
676	for my $name (keys %command) {	791	for my $name (keys %COMMAND) {
677	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };	792	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
678		793
679	if (@cb) {	794	if (@cb) {
680	$command{$name} = \@cb;	795	$COMMAND{$name} = \@cb;
681	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
682	} else {	796	} else {
683	delete $command{$name};
684	delete $COMMAND{"$name\000"};	797	delete $COMMAND{$name};
685	}	798	}
686	}	799	}
687		800
688	# remove extcmds	801	# remove extcmds
689	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	802	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
690	delete $extcmd{$name};	803	delete $EXTCMD{$name};
691	}	804	}
692		805
693	if (my $cb = $pkg->can ("unload")) {	806	if (my $cb = $pkg->can ("unload")) {
694	eval {	807	eval {
695	$cb->($pkg);	808	$cb->($pkg);
…		…
699		812
700	Symbol::delete_package $pkg;	813	Symbol::delete_package $pkg;
701	}	814	}
702		815
703	sub load_extensions {	816	sub load_extensions {
704	my $LIBDIR = maps_directory "perl";
705
706	for my $ext (<$LIBDIR/*.ext>) {	817	for my $ext (<$LIBDIR/*.ext>) {
707	next unless -r $ext;	818	next unless -r $ext;
708	eval {	819	eval {
709	load_extension $ext;	820	load_extension $ext;
710	1	821	1
711	} or warn "$ext not loaded: $@";	822	} or warn "$ext not loaded: $@";
712	}	823	}
713	}	824	}
714		825
715	#############################################################################	826	#############################################################################
716	# extcmd framework, basically convert ext <msg>
717	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
718
719	attach_to_players
720	on_extcmd => sub {
721	my ($pl, $buf) = @_;
722
723	my $msg = eval { from_json $buf };
724
725	if (ref $msg) {
726	if (my $cb = $extcmd{$msg->{msgtype}}) {
727	if (my %reply = $cb->[0]->($pl, $msg)) {
728	$pl->ext_reply ($msg->{msgid}, %reply);
729	}
730	}
731	} else {
732	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
733	}
734
735	cf::override;
736	},
737	;
738
739	#############################################################################
740	# load/save/clean perl data associated with a map	827	# load/save/clean perl data associated with a map
741		828
742	*cf::mapsupport::on_clean = sub {	829	*cf::mapsupport::on_clean = sub {
743	my ($map) = @_;	830	my ($map) = @_;
744		831
…		…
746	defined $path or return;	833	defined $path or return;
747		834
748	unlink "$path.pst";	835	unlink "$path.pst";
749	};	836	};
750		837
751	attach_to_maps prio => -10000, package => cf::mapsupport::;	838	cf::map->attach (prio => -10000, package => cf::mapsupport::);
752		839
753	#############################################################################	840	#############################################################################
754	# load/save perl data associated with player->ob objects	841	# load/save perl data associated with player->ob objects
755		842
756	sub all_objects(@) {	843	sub all_objects(@) {
757	@_, map all_objects ($_->inv), @_	844	@_, map all_objects ($_->inv), @_
758	}	845	}
759		846
760	# TODO: compatibility cruft, remove when no longer needed	847	# TODO: compatibility cruft, remove when no longer needed
761	attach_to_players	848	cf::player->attach (
762	on_load => sub {	849	on_load => sub {
763	my ($pl, $path) = @_;	850	my ($pl, $path) = @_;
764		851
765	for my $o (all_objects $pl->ob) {	852	for my $o (all_objects $pl->ob) {
766	if (my $value = $o->get_ob_key_value ("_perl_data")) {	853	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
768		855
769	%$o = %{ Storable::thaw pack "H*", $value };	856	%$o = %{ Storable::thaw pack "H*", $value };
770	}	857	}
771	}	858	}
772	},	859	},
773	;	860	);
774		861
775	#############################################################################	862	#############################################################################
776		863
777	=head2 CORE EXTENSIONS	864	=head2 CORE EXTENSIONS
778		865
779	Functions and methods that extend core crossfire objects.	866	Functions and methods that extend core crossfire objects.
		867
		868	=head3 cf::player
780		869
781	=over 4	870	=over 4
782		871
783	=item cf::player::exists $login	872	=item cf::player::exists $login
784		873
…		…
789	sub cf::player::exists($) {	878	sub cf::player::exists($) {
790	cf::player::find $_[0]	879	cf::player::find $_[0]
791	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
792	}	881	}
793		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($$$%) {
		890	my ($self, $id, %msg) = @_;
		891
		892	$msg{msgid} = $id;
		893
		894	$self->send ("ext " . to_json \%msg);
		895	}
		896
		897	=back
		898
		899	=head3 cf::object::player
		900
		901	=over 4
		902
794	=item $player_object->reply ($npc, $msg[, $flags])	903	=item $player_object->reply ($npc, $msg[, $flags])
795		904
796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	905	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
797	can be C<undef>. Does the right thing when the player is currently in a	906	can be C<undef>. Does the right thing when the player is currently in a
798	dialogue with the given NPC character.	907	dialogue with the given NPC character.
799		908
800	=cut	909	=cut
801		910
802	# rough implementation of a future "reply" method that works	911	# rough implementation of a future "reply" method that works
803	# with dialog boxes.	912	# with dialog boxes.
		913	#TODO: the first argument must go, split into a $npc->reply_to ( method
804	sub cf::object::player::reply($$$;$) {	914	sub cf::object::player::reply($$$;$) {
805	my ($self, $npc, $msg, $flags) = @_;	915	my ($self, $npc, $msg, $flags) = @_;
806		916
807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	917	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
808		918
…		…
812	$msg = $npc->name . " says: $msg" if $npc;	922	$msg = $npc->name . " says: $msg" if $npc;
813	$self->message ($msg, $flags);	923	$self->message ($msg, $flags);
814	}	924	}
815	}	925	}
816		926
817	=item $player->ext_reply ($msgid, $msgtype, %msg)
818
819	Sends an ext reply to the player.
820
821	=cut
822
823	sub cf::player::ext_reply($$$%) {
824	my ($self, $id, %msg) = @_;
825
826	$msg{msgid} = $id;
827
828	$self->send ("ext " . to_json \%msg);
829	}
830
831	=item $player_object->may ("access")	927	=item $player_object->may ("access")
832		928
833	Returns wether the given player is authorized to access resource "access"	929	Returns wether the given player is authorized to access resource "access"
834	(e.g. "command_wizcast").	930	(e.g. "command_wizcast").
835		931
…		…
842	(ref $cf::CFG{"may_$access"}	938	(ref $cf::CFG{"may_$access"}
843	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
844	: $cf::CFG{"may_$access"})	940	: $cf::CFG{"may_$access"})
845	}	941	}
846		942
847	=cut	943	=head3 cf::client
848		944
849	#############################################################################	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 $ns->{_coro}) || {} };
		1043	},
		1044	);
		1045
		1046	=back
		1047
850		1048
851	=head2 SAFE SCRIPTING	1049	=head2 SAFE SCRIPTING
852		1050
853	Functions that provide a safe environment to compile and execute	1051	Functions that provide a safe environment to compile and execute
854	snippets of perl code without them endangering the safety of the server	1052	snippets of perl code without them endangering the safety of the server
…		…
869		1067
870	=pod	1068	=pod
871		1069
872	The following fucntions and emthods are available within a safe environment:	1070	The following fucntions and emthods are available within a safe environment:
873		1071
874	cf::object contr pay_amount pay_player	1072	cf::object contr pay_amount pay_player map
875	cf::object::player player	1073	cf::object::player player
876	cf::player peaceful	1074	cf::player peaceful
		1075	cf::map trigger
877		1076
878	=cut	1077	=cut
879		1078
880	for (	1079	for (
881	["cf::object" => qw(contr pay_amount pay_player)],	1080	["cf::object" => qw(contr pay_amount pay_player map)],
882	["cf::object::player" => qw(player)],	1081	["cf::object::player" => qw(player)],
883	["cf::player" => qw(peaceful)],	1082	["cf::player" => qw(peaceful)],
		1083	["cf::map" => qw(trigger)],
884	) {	1084	) {
885	no strict 'refs';	1085	no strict 'refs';
886	my ($pkg, @funs) = @$_;	1086	my ($pkg, @funs) = @$_;
887	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1087	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
888	for @funs;	1088	for @funs;
…		…
1028	sub db_sync() {	1228	sub db_sync() {
1029	db_save if $dirty;	1229	db_save if $dirty;
1030	undef $dirty;	1230	undef $dirty;
1031	}	1231	}
1032		1232
1033	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 {
1034	db_sync;	1234	db_sync;
1035	});	1235	});
1036		1236
1037	sub db_dirty() {	1237	sub db_dirty() {
1038	$dirty = 1;	1238	$dirty = 1;
…		…
1052	$DB->{$_[0]} = $_[1];	1252	$DB->{$_[0]} = $_[1];
1053	}	1253	}
1054	db_dirty;	1254	db_dirty;
1055	}	1255	}
1056		1256
1057	attach_global	1257	cf::global->attach (
1058	prio => 10000,	1258	prio => 10000,
1059	on_cleanup => sub {	1259	on_cleanup => sub {
1060	db_sync;	1260	db_sync;
1061	},	1261	},
1062	;	1262	);
1063	}	1263	}
1064		1264
1065	#############################################################################	1265	#############################################################################
1066	# the server's main()	1266	# the server's main()
1067		1267
…		…
1081	}	1281	}
1082		1282
1083	#############################################################################	1283	#############################################################################
1084	# initialisation	1284	# initialisation
1085		1285
1086	sub _perl_reload(&) {	1286	sub _perl_reload() {
1087	my ($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	}
1088		1292
1089	$msg->("reloading...");	1293	warn "reloading...";
		1294
		1295	local $FREEZE = 1;
		1296	cf::emergency_save;
1090		1297
1091	eval {	1298	eval {
		1299	# if anything goes wrong in here, we should simply crash as we already saved
		1300
1092	# cancel all watchers	1301	# cancel all watchers
1093	$_->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 = ();
1094		1309
1095	# unload all extensions	1310	# unload all extensions
1096	for (@exts) {	1311	for (@exts) {
1097	$msg->("unloading <$_>");	1312	warn "unloading <$_>";
1098	unload_extension $_;	1313	unload_extension $_;
1099	}	1314	}
1100		1315
1101	# unload all modules loaded from $LIBDIR	1316	# unload all modules loaded from $LIBDIR
1102	while (my ($k, $v) = each %INC) {	1317	while (my ($k, $v) = each %INC) {
1103	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1104		1319
1105	$msg->("removing <$k>");	1320	warn "removing <$k>";
1106	delete $INC{$k};	1321	delete $INC{$k};
1107		1322
1108	$k =~ s/\.pm$//;	1323	$k =~ s/\.pm$//;
1109	$k =~ s/\//::/g;	1324	$k =~ s/\//::/g;
1110		1325
…		…
1115	Symbol::delete_package $k;	1330	Symbol::delete_package $k;
1116	}	1331	}
1117		1332
1118	# sync database to disk	1333	# sync database to disk
1119	cf::db_sync;	1334	cf::db_sync;
		1335	IO::AIO::flush;
1120		1336
1121	# get rid of safe::, as good as possible	1337	# get rid of safe::, as good as possible
1122	Symbol::delete_package "safe::$_"	1338	Symbol::delete_package "safe::$_"
1123	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);
1124		1340
1125	# remove register_script_function callbacks	1341	# remove register_script_function callbacks
1126	# TODO	1342	# TODO
1127		1343
1128	# unload cf.pm "a bit"	1344	# unload cf.pm "a bit"
…		…
1131	# don't, removes xs symbols, too,	1347	# don't, removes xs symbols, too,
1132	# and global variables created in xs	1348	# and global variables created in xs
1133	#Symbol::delete_package __PACKAGE__;	1349	#Symbol::delete_package __PACKAGE__;
1134		1350
1135	# reload cf.pm	1351	# reload cf.pm
1136	$msg->("reloading cf.pm");	1352	warn "reloading cf.pm";
1137	require cf;	1353	require cf;
		1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1138		1355
1139	# load config and database again	1356	# load config and database again
1140	cf::cfg_load;	1357	cf::cfg_load;
1141	cf::db_load;	1358	cf::db_load;
1142		1359
1143	# load extensions	1360	# load extensions
1144	$msg->("load extensions");	1361	warn "load extensions";
1145	cf::load_extensions;	1362	cf::load_extensions;
1146		1363
1147	# reattach attachments to objects	1364	# reattach attachments to objects
1148	$msg->("reattach");	1365	warn "reattach";
1149	_global_reattach;	1366	_global_reattach;
1150	};	1367	};
1151	$msg->($@) if $@;
1152		1368
1153	$msg->("reloaded");	1369	if ($@) {
		1370	warn $@;
		1371	warn "error while reloading, exiting.";
		1372	exit 1;
		1373	}
		1374
		1375	warn "reloaded successfully";
1154	};	1376	};
1155		1377
1156	sub perl_reload() {	1378	sub perl_reload() {
1157	_perl_reload {	1379	_perl_reload;
1158	warn $_[0];
1159	print "$_[0]\n";
1160	};
1161	}	1380	}
1162		1381
		1382	register "<global>", __PACKAGE__;
		1383
1163	register_command "perl-reload", 0, sub {	1384	register_command "perl-reload" => sub {
1164	my ($who, $arg) = @_;	1385	my ($who, $arg) = @_;
1165		1386
1166	if ($who->flag (FLAG_WIZ)) {	1387	if ($who->flag (FLAG_WIZ)) {
		1388	$who->message ("reloading...");
1167	_perl_reload {	1389	_perl_reload;
1168	warn $_[0];
1169	$who->message ($_[0]);
1170	};
1171	}	1390	}
1172	};	1391	};
1173		1392
1174	register "<global>", __PACKAGE__;
1175
1176	unshift @INC, $LIBDIR;	1393	unshift @INC, $LIBDIR;
1177		1394
1178	$TICK_WATCHER = Event->timer (	1395	$TICK_WATCHER = Event->timer (
		1396	reentrant => 0,
1179	prio => 1,	1397	prio => 0,
1180	async => 1,
1181	at => $NEXT_TICK || 1,	1398	at => $NEXT_TICK || $TICK,
		1399	data => WF_AUTOCANCEL,
1182	cb => sub {	1400	cb => sub {
		1401	unless ($FREEZE) {
1183	cf::server_tick; # one server iteration	1402	cf::server_tick; # one server iteration
		1403	$RUNTIME += $TICK;
		1404	}
1184		1405
1185	my $NOW = Event::time;
1186	$NEXT_TICK += $TICK;	1406	$NEXT_TICK += $TICK;
1187		1407
1188	# if we are delayed by four ticks or more, skip them all	1408	# if we are delayed by four ticks or more, skip them all
1189	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1409	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1190		1410
1191	$TICK_WATCHER->at ($NEXT_TICK);	1411	$TICK_WATCHER->at ($NEXT_TICK);
1192	$TICK_WATCHER->start;	1412	$TICK_WATCHER->start;
1193	},	1413	},
1194	);	1414	);
…		…
1196	IO::AIO::max_poll_time $TICK * 0.2;	1416	IO::AIO::max_poll_time $TICK * 0.2;
1197		1417
1198	Event->io (fd => IO::AIO::poll_fileno,	1418	Event->io (fd => IO::AIO::poll_fileno,
1199	poll => 'r',	1419	poll => 'r',
1200	prio => 5,	1420	prio => 5,
		1421	data => WF_AUTOCANCEL,
1201	cb => \&IO::AIO::poll_cb);	1422	cb => \&IO::AIO::poll_cb);
1202		1423
		1424	# we must not ever block the main coroutine
		1425	$Coro::idle = sub {
		1426	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1427	warn "FATAL: Coro::idle was called, major BUG\n";
		1428	(Coro::unblock_sub {
		1429	Event::one_event;
		1430	})->();
		1431	};
		1432
1203	1	1433	1
1204		1434

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