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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.92 by root, Thu Dec 21 06:42:28 2006 UTC vs.
Revision 1.148 by root, Mon Jan 8 12:39:16 2007 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 Digest::MD5;
		21	use Fcntl;
10	use IO::AIO ();	22	use IO::AIO 2.32 ();
11	use YAML::Syck ();	23	use YAML::Syck ();
12	use Time::HiRes;	24	use Time::HiRes;
13	use Event;	25
14	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		27
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
18		30
19	use strict;	31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20		32
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		34
23	our %COMMAND = ();	35	our %COMMAND = ();
24	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
25	our %EXTCMD = ();	37	our %EXTCMD = ();
26		38
27	_init_vars;
28
29	our @EVENT;	39	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	40	our $LIBDIR = datadir . "/ext";
31		41
32	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	43	our $TICK_WATCHER;
34	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
35		46
36	our %CFG;	47	our %CFG;
37		48
38	our $UPTIME; $UPTIME ||= time;	49	our $UPTIME; $UPTIME ||= time;
		50	our $RUNTIME;
		51
		52	our %PLAYER; # all users
		53	our %MAP; # all maps
		54	our $LINK_MAP; # the special {link} map
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO; # coroutines bound to extensions
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
		76	our $EMERGENCY_POSITION;
39		77
40	#############################################################################	78	#############################################################################
41		79
42	=head2 GLOBAL VARIABLES	80	=head2 GLOBAL VARIABLES
43		81
44	=over 4	82	=over 4
45		83
46	=item $cf::UPTIME	84	=item $cf::UPTIME
47		85
48	The timestamp of the server start (so not actually an uptime).	86	The timestamp of the server start (so not actually an uptime).
		87
		88	=item $cf::RUNTIME
		89
		90	The time this server has run, starts at 0 and is increased by $cf::TICK on
		91	every server tick.
49		92
50	=item $cf::LIBDIR	93	=item $cf::LIBDIR
51		94
52	The perl library directory, where extensions and cf-specific modules can	95	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	96	be found. It will be added to C<@INC> automatically.
		97
		98	=item $cf::NOW
		99
		100	The time of the last (current) server tick.
54		101
55	=item $cf::TICK	102	=item $cf::TICK
56		103
57	The interval between server ticks, in seconds.	104	The interval between server ticks, in seconds.
58		105
…		…
66	=cut	113	=cut
67		114
68	BEGIN {	115	BEGIN {
69	*CORE::GLOBAL::warn = sub {	116	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	117	my $msg = join "", @_;
		118	utf8::encode $msg;
		119
71	$msg .= "\n"	120	$msg .= "\n"
72	unless $msg =~ /\n$/;	121	unless $msg =~ /\n$/;
73		122
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	123	LOG llevError, $msg;
76	};	124	};
77	}	125	}
78		126
		127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
79	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
80		133
81	# we bless all objects into (empty) derived classes to force a method lookup	134	# we bless all objects into (empty) derived classes to force a method lookup
82	# within the Safe compartment.	135	# within the Safe compartment.
83	for my $pkg (qw(	136	for my $pkg (qw(
		137	cf::global cf::attachable
84	cf::object cf::object::player	138	cf::object cf::object::player
85	cf::client cf::player	139	cf::client cf::player
86	cf::arch cf::living	140	cf::arch cf::living
87	cf::map cf::party cf::region	141	cf::map cf::party cf::region
88	)) {	142	)) {
…		…
126	sub to_json($) {	180	sub to_json($) {
127	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
128	JSON::Syck::Dump $_[0]	182	JSON::Syck::Dump $_[0]
129	}	183	}
130		184
		185	=item cf::lock_wait $string
		186
		187	Wait until the given lock is available. See cf::lock_acquire.
		188
		189	=item my $lock = cf::lock_acquire $string
		190
		191	Wait until the given lock is available and then acquires it and returns
		192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		193	for example when the coroutine gets canceled), the lock is automatically
		194	returned.
		195
		196	Lock names should begin with a unique identifier (for example, cf::map::find
		197	uses map_find and cf::map::load uses map_load).
		198
		199	=cut
		200
		201	our %LOCK;
		202
		203	sub lock_wait($) {
		204	my ($key) = @_;
		205
		206	# wait for lock, if any
		207	while ($LOCK{$key}) {
		208	push @{ $LOCK{$key} }, $Coro::current;
		209	Coro::schedule;
		210	}
		211	}
		212
		213	sub lock_acquire($) {
		214	my ($key) = @_;
		215
		216	# wait, to be sure we are not locked
		217	lock_wait $key;
		218
		219	$LOCK{$key} = [];
		220
		221	Coro::guard {
		222	# wake up all waiters, to be on the safe side
		223	$_->ready for @{ delete $LOCK{$key} };
		224	}
		225	}
		226
		227	sub freeze_mainloop {
		228	return unless $TICK_WATCHER->is_active;
		229
		230	my $guard = Coro::guard { $TICK_WATCHER->start };
		231	$TICK_WATCHER->stop;
		232	$guard
		233	}
		234
		235	=item cf::async { BLOCK }
		236
		237	Currently the same as Coro::async_pool, meaning you cannot use
		238	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		239	thing you are allowed to do is call C<prio> on it.
		240
		241	=cut
		242
		243	BEGIN { *async = \&Coro::async_pool }
		244
		245	=item cf::sync_job { BLOCK }
		246
		247	The design of crossfire+ requires that the main coro ($Coro::main) is
		248	always able to handle events or runnable, as crossfire+ is only partly
		249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		250
		251	If it must be done, put the blocking parts into C<sync_job>. This will run
		252	the given BLOCK in another coroutine while waiting for the result. The
		253	server will be frozen during this time, so the block should either finish
		254	fast or be very important.
		255
		256	=cut
		257
		258	sub sync_job(&) {
		259	my ($job) = @_;
		260
		261	if ($Coro::current == $Coro::main) {
		262	# this is the main coro, too bad, we have to block
		263	# till the operation succeeds, freezing the server :/
		264
		265	# TODO: use suspend/resume instead
		266	# (but this is cancel-safe)
		267	my $freeze_guard = freeze_mainloop;
		268
		269	my $busy = 1;
		270	my @res;
		271
		272	(async {
		273	@res = eval { $job->() };
		274	warn $@ if $@;
		275	undef $busy;
		276	})->prio (Coro::PRIO_MAX);
		277
		278	while ($busy) {
		279	Coro::cede or Event::one_event;
		280	}
		281
		282	wantarray ? @res : $res[0]
		283	} else {
		284	# we are in another coroutine, how wonderful, everything just works
		285
		286	$job->()
		287	}
		288	}
		289
		290	=item $coro = cf::async_ext { BLOCK }
		291
		292	Like async, but this coro is automcatially being canceled when the
		293	extension calling this is being unloaded.
		294
		295	=cut
		296
		297	sub async_ext(&) {
		298	my $cb = shift;
		299
		300	my $coro = &Coro::async ($cb);
		301
		302	$coro->on_destroy (sub {
		303	delete $EXT_CORO{$coro+0};
		304	});
		305	$EXT_CORO{$coro+0} = $coro;
		306
		307	$coro
		308	}
		309
		310	sub write_runtime {
		311	my $runtime = cf::localdir . "/runtime";
		312
		313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		314	or return;
		315
		316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		318	and return;
		319
		320	aio_fsync $fh
		321	and return;
		322
		323	close $fh
		324	or return;
		325
		326	aio_rename "$runtime~", $runtime
		327	and return;
		328
		329	1
		330	}
		331
131	=back	332	=back
132		333
133	=cut	334	=cut
134		335
135	#############################################################################	336	#############################################################################
136		337
137	=head2 EVENTS AND OBJECT ATTACHMENTS	338	package cf::path;
		339
		340	sub new {
		341	my ($class, $path, $base) = @_;
		342
		343	$path = $path->as_string if ref $path;
		344
		345	my $self = bless { }, $class;
		346
		347	# {... are special paths that are not touched
		348	# ?xxx/... are special absolute paths
		349	# ?random/... random maps
		350	# /! non-realised random map exit
		351	# /... normal maps
		352	# ~/... per-player maps without a specific player (DO NOT USE)
		353	# ~user/... per-player map of a specific user
		354
		355	if ($path =~ /^{/) {
		356	# fine as it is
		357	} elsif ($path =~ s{^\?random/}{}) {
		358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		359	$self->{random} = cf::from_json $data;
		360	} else {
		361	if ($path =~ s{^~([^/]+)?}{}) {
		362	$self->{user_rel} = 1;
		363
		364	if (defined $1) {
		365	$self->{user} = $1;
		366	} elsif ($base =~ m{^~([^/]+)/}) {
		367	$self->{user} = $1;
		368	} else {
		369	warn "cannot resolve user-relative path without user <$path,$base>\n";
		370	}
		371	} elsif ($path =~ /^\//) {
		372	# already absolute
		373	} else {
		374	$base =~ s{[^/]+/?$}{};
		375	return $class->new ("$base/$path");
		376	}
		377
		378	for ($path) {
		379	redo if s{/\.?/}{/};
		380	redo if s{/[^/]+/\.\./}{/};
		381	}
		382	}
		383
		384	$self->{path} = $path;
		385
		386	$self
		387	}
		388
		389	# the name / primary key / in-game path
		390	sub as_string {
		391	my ($self) = @_;
		392
		393	$self->{user_rel} ? "~$self->{user}$self->{path}"
		394	: $self->{random} ? "?random/$self->{path}"
		395	: $self->{path}
		396	}
		397
		398	# the displayed name, this is a one way mapping
		399	sub visible_name {
		400	my ($self) = @_;
		401
		402	# if (my $rmp = $self->{random}) {
		403	# # todo: be more intelligent about this
		404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		405	# } else {
		406	$self->as_string
		407	# }
		408	}
		409
		410	# escape the /'s in the path
		411	sub _escaped_path {
		412	# ∕ is U+2215
		413	(my $path = $_[0]{path}) =~ s/\//∕/g;
		414	$path
		415	}
		416
		417	# the original (read-only) location
		418	sub load_path {
		419	my ($self) = @_;
		420
		421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		422	}
		423
		424	# the temporary/swap location
		425	sub save_path {
		426	my ($self) = @_;
		427
		428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		431	}
		432
		433	# the unique path, might be eq to save_path
		434	sub uniq_path {
		435	my ($self) = @_;
		436
		437	$self->{user_rel} || $self->{random}
		438	? undef
		439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		440	}
		441
		442	# return random map parameters, or undef
		443	sub random_map_params {
		444	my ($self) = @_;
		445
		446	$self->{random}
		447	}
		448
		449	# this is somewhat ugly, but style maps do need special treatment
		450	sub is_style_map {
		451	$_[0]{path} =~ m{^/styles/}
		452	}
		453
		454	package cf;
		455
		456	#############################################################################
		457
		458	=head2 ATTACHABLE OBJECTS
		459
		460	Many objects in crossfire are so-called attachable objects. That means you can
		461	attach callbacks/event handlers (a collection of which is called an "attachment")
		462	to it. All such attachable objects support the following methods.
		463
		464	In the following description, CLASS can be any of C<global>, C<object>
		465	C<player>, C<client> or C<map> (i.e. the attachable objects in
		466	crossfire+).
138		467
139	=over 4	468	=over 4
140		469
141	=item $object->attach ($attachment, key => $value...)
142
143	=item $object->detach ($attachment)
144
145	Attach/detach a pre-registered attachment to an object.
146
147	=item $player->attach ($attachment, key => $value...)
148
149	=item $player->detach ($attachment)
150
151	Attach/detach a pre-registered attachment to a player.
152
153	=item $map->attach ($attachment, key => $value...)
154
155	=item $map->detach ($attachment)
156
157	Attach/detach a pre-registered attachment to a client.
158
159	=item $client->attach ($attachment, key => $value...)	470	=item $attachable->attach ($attachment, key => $value...)
160		471
161	=item $client->detach ($attachment)	472	=item $attachable->detach ($attachment)
162		473
163	Attach/detach a pre-registered attachment to a map.	474	Attach/detach a pre-registered attachment to a specific object and give it
		475	the specified key/value pairs as arguments.
164		476
165	=item $bool = $object->attached ($name)	477	Example, attach a minesweeper attachment to the given object, making it a
		478	10x10 minesweeper game:
166		479
167	=item $bool = $player->attached ($name)	480	$obj->attach (minesweeper => width => 10, height => 10);
168		481
169	=item $bool = $client->attached ($name)	482	=item $bool = $attachable->attached ($name)
170
171	=item $bool = $map->attached ($name)
172		483
173	Checks wether the named attachment is currently attached to the object.	484	Checks wether the named attachment is currently attached to the object.
174		485
175	=item cf::attach_global ...	486	=item cf::CLASS->attach ...
176		487
177	Attach handlers for global events.	488	=item cf::CLASS->detach ...
178		489
179	This and all following C<attach_*>-functions expect any number of the	490	Define an anonymous attachment and attach it to all objects of the given
180	following handler/hook descriptions:	491	CLASS. See the next function for an explanation of its arguments.
		492
		493	You can attach to global events by using the C<cf::global> class.
		494
		495	Example, log all player logins:
		496
		497	cf::player->attach (
		498	on_login => sub {
		499	my ($pl) = @_;
		500	...
		501	},
		502	);
		503
		504	Example, attach to the jeweler skill:
		505
		506	cf::object->attach (
		507	type => cf::SKILL,
		508	subtype => cf::SK_JEWELER,
		509	on_use_skill => sub {
		510	my ($sk, $ob, $part, $dir, $msg) = @_;
		511	...
		512	},
		513	);
		514
		515	=item cf::CLASS::attachment $name, ...
		516
		517	Register an attachment by C<$name> through which attachable objects of the
		518	given CLASS can refer to this attachment.
		519
		520	Some classes such as crossfire maps and objects can specify attachments
		521	that are attached at load/instantiate time, thus the need for a name.
		522
		523	These calls expect any number of the following handler/hook descriptions:
181		524
182	=over 4	525	=over 4
183		526
184	=item prio => $number	527	=item prio => $number
185		528
…		…
187	by another C<prio> setting). Lower priority handlers get executed	530	by another C<prio> setting). Lower priority handlers get executed
188	earlier. The default priority is C<0>, and many built-in handlers are	531	earlier. The default priority is C<0>, and many built-in handlers are
189	registered at priority C<-1000>, so lower priorities should not be used	532	registered at priority C<-1000>, so lower priorities should not be used
190	unless you know what you are doing.	533	unless you know what you are doing.
191		534
		535	=item type => $type
		536
		537	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		538	given type of objects only (the additional parameter C<subtype> can be
		539	used to further limit to the given subtype).
		540
192	=item on_I<event> => \&cb	541	=item on_I<event> => \&cb
193		542
194	Call the given code reference whenever the named event happens (event is	543	Call the given code reference whenever the named event happens (event is
195	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	544	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
196	handlers are recognised generally depends on the type of object these	545	handlers are recognised generally depends on the type of object these
…		…
205	package and register them. Only handlers for eevents supported by the	554	package and register them. Only handlers for eevents supported by the
206	object/class are recognised.	555	object/class are recognised.
207		556
208	=back	557	=back
209		558
210	=item cf::attach_to_type $object_type, $subtype, ...	559	Example, define an attachment called "sockpuppet" that calls the given
		560	event handler when a monster attacks:
211		561
212	Attach handlers for a specific object type (e.g. TRANSPORT) and	562	cf::object::attachment sockpuppet =>
213	subtype. If C<$subtype> is zero or undef, matches all objects of the given	563	on_skill_attack => sub {
214	type.	564	my ($self, $victim) = @_;
215		565	...
216	=item cf::attach_to_objects ...
217
218	Attach handlers to all objects. Do not use this except for debugging or
219	very rare events, as handlers are (obviously) called for I<all> objects in
220	the game.
221
222	=item cf::attach_to_players ...
223
224	Attach handlers to all players.
225
226	=item cf::attach_to_clients ...
227
228	Attach handlers to all players.
229
230	=item cf::attach_to_maps ...
231
232	Attach handlers to all maps.
233
234	=item cf:register_attachment $name, ...
235
236	Register an attachment by name through which objects can refer to this
237	attachment.
238
239	=item cf:register_player_attachment $name, ...
240
241	Register an attachment by name through which players can refer to this
242	attachment.
243
244	=item cf:register_map_attachment $name, ...
245
246	Register an attachment by name through which maps can refer to this
247	attachment.
248
249	=cut
250
251	# the following variables are defined in .xs and must not be re-created
252	our @CB_GLOBAL = (); # registry for all global events
253	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
254	our @CB_PLAYER = ();
255	our @CB_CLIENT = ();
256	our @CB_TYPE = (); # registry for type (cf-object class) based events
257	our @CB_MAP = ();
258
259	my %attachment;
260
261	sub _attach_cb($\%$$$) {
262	my ($registry, $undo, $event, $prio, $cb) = @_;
263
264	use sort 'stable';
265
266	$cb = [$prio, $cb];
267
268	@{$registry->[$event]} = sort
269	{ $a->[0] cmp $b->[0] }
270	@{$registry->[$event] || []}, $cb;
271
272	push @{$undo->{cb}}, [$event, $cb];
273	}
274
275	# attach handles attaching event callbacks
276	# the only thing the caller has to do is pass the correct
277	# registry (== where the callback attaches to).
278	sub _attach(\@$@) {
279	my ($registry, $klass, @arg) = @_;
280
281	my $prio = 0;
282
283	my %undo = (
284	registry => $registry,
285	cb => [],
286	);
287
288	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
289
290	while (@arg) {
291	my $type = shift @arg;
292
293	if ($type eq "prio") {
294	$prio = shift @arg;
295
296	} elsif ($type eq "package") {
297	my $pkg = shift @arg;
298
299	while (my ($name, $id) = each %cb_id) {
300	if (my $cb = $pkg->can ($name)) {
301	_attach_cb $registry, %undo, $id, $prio, $cb;
302	}
303	}	566	}
304
305	} elsif (exists $cb_id{$type}) {
306	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
307
308	} elsif (ref $type) {
309	warn "attaching objects not supported, ignoring.\n";
310
311	} else {
312	shift @arg;
313	warn "attach argument '$type' not supported, ignoring.\n";
314	}
315	}
316
317	\%undo
318	}
319
320	sub _attach_attachment {
321	my ($obj, $name, %arg) = @_;
322
323	return if exists $obj->{_attachment}{$name};
324
325	my $res;
326
327	if (my $attach = $attachment{$name}) {
328	my $registry = $obj->registry;
329
330	for (@$attach) {
331	my ($klass, @attach) = @$_;
332	$res = _attach @$registry, $klass, @attach;
333	}
334
335	$obj->{$name} = \%arg;
336	} else {
337	warn "object uses attachment '$name' that is not available, postponing.\n";
338	}
339
340	$obj->{_attachment}{$name} = undef;
341
342	$res->{attachment} = $name;
343	$res
344	}
345
346	*cf::object::attach =
347	*cf::player::attach =
348	*cf::client::attach =
349	*cf::map::attach = sub {
350	my ($obj, $name, %arg) = @_;
351
352	_attach_attachment $obj, $name, %arg;
353	};
354
355	# all those should be optimised
356	*cf::object::detach =
357	*cf::player::detach =
358	*cf::client::detach =
359	*cf::map::detach = sub {
360	my ($obj, $name) = @_;
361
362	delete $obj->{_attachment}{$name};
363	reattach ($obj);
364	};
365
366	*cf::object::attached =
367	*cf::player::attached =
368	*cf::client::attached =
369	*cf::map::attached = sub {
370	my ($obj, $name) = @_;
371
372	exists $obj->{_attachment}{$name}
373	};
374
375	sub attach_global {
376	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
377	}
378
379	sub attach_to_type {
380	my $type = shift;
381	my $subtype = shift;
382
383	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
384	}
385
386	sub attach_to_objects {
387	_attach @CB_OBJECT, KLASS_OBJECT, @_
388	}
389
390	sub attach_to_players {
391	_attach @CB_PLAYER, KLASS_PLAYER, @_
392	}
393
394	sub attach_to_clients {
395	_attach @CB_CLIENT, KLASS_CLIENT, @_
396	}
397
398	sub attach_to_maps {
399	_attach @CB_MAP, KLASS_MAP, @_
400	}
401
402	sub register_attachment {
403	my $name = shift;
404
405	$attachment{$name} = [[KLASS_OBJECT, @_]];
406	}
407
408	sub register_player_attachment {
409	my $name = shift;
410
411	$attachment{$name} = [[KLASS_PLAYER, @_]];
412	}
413
414	sub register_client_attachment {
415	my $name = shift;
416
417	$attachment{$name} = [[KLASS_CLIENT, @_]];
418	}
419
420	sub register_map_attachment {
421	my $name = shift;
422
423	$attachment{$name} = [[KLASS_MAP, @_]];
424	}
425
426	our $override;
427	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
428
429	sub override {
430	$override = 1;
431	@invoke_results = ();
432	}
433
434	sub do_invoke {
435	my $event = shift;
436	my $callbacks = shift;
437
438	@invoke_results = ();
439
440	local $override;
441
442	for (@$callbacks) {
443	eval { &{$_->[1]} };
444
445	if ($@) {
446	warn "$@";
447	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
448	override;
449	}
450
451	return 1 if $override;
452	}
453
454	0	567	}
455	}
456		568
457	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	569	=item $attachable->valid
458
459	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
460
461	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
462
463	=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...)
464
465	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
466
467	Generate a global/object/player/map-specific event with the given arguments.
468
469	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
470	removed in future versions), and there is no public API to access override
471	results (if you must, access C<@cf::invoke_results> directly).
472
473	=back
474
475	=cut
476
477	#############################################################################
478
479	=head2 METHODS VALID FOR ALL CORE OBJECTS
480
481	=over 4
482
483	=item $object->valid, $player->valid, $client->valid, $map->valid
484		570
485	Just because you have a perl object does not mean that the corresponding	571	Just because you have a perl object does not mean that the corresponding
486	C-level object still exists. If you try to access an object that has no	572	C-level object still exists. If you try to access an object that has no
487	valid C counterpart anymore you get an exception at runtime. This method	573	valid C counterpart anymore you get an exception at runtime. This method
488	can be used to test for existence of the C object part without causing an	574	can be used to test for existence of the C object part without causing an
489	exception.	575	exception.
490		576
		577	=cut
		578
		579	# the following variables are defined in .xs and must not be re-created
		580	our @CB_GLOBAL = (); # registry for all global events
		581	our @CB_ATTACHABLE = (); # registry for all attachables
		582	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		583	our @CB_PLAYER = ();
		584	our @CB_CLIENT = ();
		585	our @CB_TYPE = (); # registry for type (cf-object class) based events
		586	our @CB_MAP = ();
		587
		588	my %attachment;
		589
		590	sub _attach_cb($$$$) {
		591	my ($registry, $event, $prio, $cb) = @_;
		592
		593	use sort 'stable';
		594
		595	$cb = [$prio, $cb];
		596
		597	@{$registry->[$event]} = sort
		598	{ $a->[0] cmp $b->[0] }
		599	@{$registry->[$event] || []}, $cb;
		600	}
		601
		602	# hack
		603	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		604
		605	# attach handles attaching event callbacks
		606	# the only thing the caller has to do is pass the correct
		607	# registry (== where the callback attaches to).
		608	sub _attach {
		609	my ($registry, $klass, @arg) = @_;
		610
		611	my $object_type;
		612	my $prio = 0;
		613	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		614
		615	#TODO: get rid of this hack
		616	if ($attachable_klass{$klass}) {
		617	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		618	}
		619
		620	while (@arg) {
		621	my $type = shift @arg;
		622
		623	if ($type eq "prio") {
		624	$prio = shift @arg;
		625
		626	} elsif ($type eq "type") {
		627	$object_type = shift @arg;
		628	$registry = $CB_TYPE[$object_type] ||= [];
		629
		630	} elsif ($type eq "subtype") {
		631	defined $object_type or Carp::croak "subtype specified without type";
		632	my $object_subtype = shift @arg;
		633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		634
		635	} elsif ($type eq "package") {
		636	my $pkg = shift @arg;
		637
		638	while (my ($name, $id) = each %cb_id) {
		639	if (my $cb = $pkg->can ($name)) {
		640	_attach_cb $registry, $id, $prio, $cb;
		641	}
		642	}
		643
		644	} elsif (exists $cb_id{$type}) {
		645	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		646
		647	} elsif (ref $type) {
		648	warn "attaching objects not supported, ignoring.\n";
		649
		650	} else {
		651	shift @arg;
		652	warn "attach argument '$type' not supported, ignoring.\n";
		653	}
		654	}
		655	}
		656
		657	sub _object_attach {
		658	my ($obj, $name, %arg) = @_;
		659
		660	return if exists $obj->{_attachment}{$name};
		661
		662	if (my $attach = $attachment{$name}) {
		663	my $registry = $obj->registry;
		664
		665	for (@$attach) {
		666	my ($klass, @attach) = @$_;
		667	_attach $registry, $klass, @attach;
		668	}
		669
		670	$obj->{$name} = \%arg;
		671	} else {
		672	warn "object uses attachment '$name' that is not available, postponing.\n";
		673	}
		674
		675	$obj->{_attachment}{$name} = undef;
		676	}
		677
		678	sub cf::attachable::attach {
		679	if (ref $_[0]) {
		680	_object_attach @_;
		681	} else {
		682	_attach shift->_attach_registry, @_;
		683	}
		684	};
		685
		686	# all those should be optimised
		687	sub cf::attachable::detach {
		688	my ($obj, $name) = @_;
		689
		690	if (ref $obj) {
		691	delete $obj->{_attachment}{$name};
		692	reattach ($obj);
		693	} else {
		694	Carp::croak "cannot, currently, detach class attachments";
		695	}
		696	};
		697
		698	sub cf::attachable::attached {
		699	my ($obj, $name) = @_;
		700
		701	exists $obj->{_attachment}{$name}
		702	}
		703
		704	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		705	eval "#line " . __LINE__ . " 'cf.pm'
		706	sub cf::\L$klass\E::_attach_registry {
		707	(\\\@CB_$klass, KLASS_$klass)
		708	}
		709
		710	sub cf::\L$klass\E::attachment {
		711	my \$name = shift;
		712
		713	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		714	}
		715	";
		716	die if $@;
		717	}
		718
		719	our $override;
		720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		721
		722	sub override {
		723	$override = 1;
		724	@invoke_results = ();
		725	}
		726
		727	sub do_invoke {
		728	my $event = shift;
		729	my $callbacks = shift;
		730
		731	@invoke_results = ();
		732
		733	local $override;
		734
		735	for (@$callbacks) {
		736	eval { &{$_->[1]} };
		737
		738	if ($@) {
		739	warn "$@";
		740	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		741	override;
		742	}
		743
		744	return 1 if $override;
		745	}
		746
		747	0
		748	}
		749
		750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		751
		752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		753
		754	Generate an object-specific event with the given arguments.
		755
		756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		757	removed in future versions), and there is no public API to access override
		758	results (if you must, access C<@cf::invoke_results> directly).
		759
491	=back	760	=back
492		761
493	=cut	762	=cut
494
495	*cf::object::valid =
496	*cf::player::valid =
497	*cf::client::valid =
498	*cf::map::valid = \&cf::_valid;
499		763
500	#############################################################################	764	#############################################################################
501	# object support	765	# object support
502		766
503	sub instantiate {
504	my ($obj, $data) = @_;
505
506	$data = from_json $data;
507
508	for (@$data) {
509	my ($name, $args) = @$_;
510
511	$obj->attach ($name, %{$args || {} });
512	}
513	}
514
515	# basically do the same as instantiate, without calling instantiate
516	sub reattach {	767	sub reattach {
		768	# basically do the same as instantiate, without calling instantiate
517	my ($obj) = @_;	769	my ($obj) = @_;
		770
518	my $registry = $obj->registry;	771	my $registry = $obj->registry;
519		772
520	@$registry = ();	773	@$registry = ();
521		774
522	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	775	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
523		776
524	for my $name (keys %{ $obj->{_attachment} || {} }) {	777	for my $name (keys %{ $obj->{_attachment} || {} }) {
525	if (my $attach = $attachment{$name}) {	778	if (my $attach = $attachment{$name}) {
526	for (@$attach) {	779	for (@$attach) {
527	my ($klass, @attach) = @$_;	780	my ($klass, @attach) = @$_;
528	_attach @$registry, $klass, @attach;	781	_attach $registry, $klass, @attach;
529	}	782	}
530	} else {	783	} else {
531	warn "object uses attachment '$name' that is not available, postponing.\n";	784	warn "object uses attachment '$name' that is not available, postponing.\n";
532	}	785	}
533	}	786	}
534	}	787	}
535		788
536	sub object_freezer_save {	789	cf::attachable->attach (
537	my ($filename, $rdata, $objs) = @_;
538
539	if (length $$rdata) {
540	warn sprintf "saving %s (%d,%d)\n",
541	$filename, length $$rdata, scalar @$objs;
542
543	if (open my $fh, ">:raw", "$filename~") {
544	chmod SAVE_MODE, $fh;
545	syswrite $fh, $$rdata;
546	close $fh;
547
548	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
549	chmod SAVE_MODE, $fh;
550	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
551	close $fh;
552	rename "$filename.pst~", "$filename.pst";
553	} else {
554	unlink "$filename.pst";
555	}
556
557	rename "$filename~", $filename;
558	} else {
559	warn "FATAL: $filename~: $!\n";
560	}
561	} else {
562	unlink $filename;
563	unlink "$filename.pst";
564	}
565	}
566
567	sub object_freezer_as_string {
568	my ($rdata, $objs) = @_;
569
570	use Data::Dumper;
571
572	$$rdata . Dumper $objs
573	}
574
575	sub object_thawer_load {
576	my ($filename) = @_;
577
578	local $/;
579
580	my $av;
581
582	#TODO: use sysread etc.
583	if (open my $data, "<:raw:perlio", $filename) {
584	$data = <$data>;
585	if (open my $pst, "<:raw:perlio", "$filename.pst") {
586	$av = eval { (Storable::thaw <$pst>)->{objs} };
587	}
588	return ($data, $av);
589	}
590
591	()
592	}
593
594	attach_to_objects
595	prio => -1000000,	790	prio => -1000000,
		791	on_instantiate => sub {
		792	my ($obj, $data) = @_;
		793
		794	$data = from_json $data;
		795
		796	for (@$data) {
		797	my ($name, $args) = @$_;
		798
		799	$obj->attach ($name, %{$args || {} });
		800	}
		801	},
		802	on_reattach => \&reattach,
596	on_clone => sub {	803	on_clone => sub {
597	my ($src, $dst) = @_;	804	my ($src, $dst) = @_;
598		805
599	@{$dst->registry} = @{$src->registry};	806	@{$dst->registry} = @{$src->registry};
600		807
601	%$dst = %$src;	808	%$dst = %$src;
602		809
603	%{$dst->{_attachment}} = %{$src->{_attachment}}	810	%{$dst->{_attachment}} = %{$src->{_attachment}}
604	if exists $src->{_attachment};	811	if exists $src->{_attachment};
605	},	812	},
606	;	813	);
		814
		815	sub object_freezer_save {
		816	my ($filename, $rdata, $objs) = @_;
		817
		818	sync_job {
		819	if (length $$rdata) {
		820	warn sprintf "saving %s (%d,%d)\n",
		821	$filename, length $$rdata, scalar @$objs;
		822
		823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		824	chmod SAVE_MODE, $fh;
		825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		826	aio_fsync $fh;
		827	close $fh;
		828
		829	if (@$objs) {
		830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		831	chmod SAVE_MODE, $fh;
		832	my $data = Storable::nfreeze { version => 1, objs => $objs };
		833	aio_write $fh, 0, (length $data), $data, 0;
		834	aio_fsync $fh;
		835	close $fh;
		836	aio_rename "$filename.pst~", "$filename.pst";
		837	}
		838	} else {
		839	aio_unlink "$filename.pst";
		840	}
		841
		842	aio_rename "$filename~", $filename;
		843	} else {
		844	warn "FATAL: $filename~: $!\n";
		845	}
		846	} else {
		847	aio_unlink $filename;
		848	aio_unlink "$filename.pst";
		849	}
		850	}
		851	}
		852
		853	sub object_freezer_as_string {
		854	my ($rdata, $objs) = @_;
		855
		856	use Data::Dumper;
		857
		858	$$rdata . Dumper $objs
		859	}
		860
		861	sub object_thawer_load {
		862	my ($filename) = @_;
		863
		864	my ($data, $av);
		865
		866	(aio_load $filename, $data) >= 0
		867	or return;
		868
		869	unless (aio_stat "$filename.pst") {
		870	(aio_load "$filename.pst", $av) >= 0
		871	or return;
		872	$av = eval { (Storable::thaw $av)->{objs} };
		873	}
		874
		875	warn sprintf "loading %s (%d)\n",
		876	$filename, length $data, scalar @{$av || []};#d#
		877	return ($data, $av);
		878	}
607		879
608	#############################################################################	880	#############################################################################
609	# command handling &c	881	# command handling &c
610		882
611	=item cf::register_command $name => \&callback($ob,$args);	883	=item cf::register_command $name => \&callback($ob,$args);
…		…
640	#warn "registering extcmd '$name' to '$caller'";	912	#warn "registering extcmd '$name' to '$caller'";
641		913
642	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = [$cb, $caller];
643	}	915	}
644		916
645	attach_to_players	917	cf::player->attach (
646	on_command => sub {	918	on_command => sub {
647	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
648		920
649	my $cb = $COMMAND{$name}	921	my $cb = $COMMAND{$name}
650	or return;	922	or return;
…		…
670	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
671	}	943	}
672		944
673	cf::override;	945	cf::override;
674	},	946	},
675	;	947	);
676		948
677	sub register {	949	sub register {
678	my ($base, $pkg) = @_;	950	my ($base, $pkg) = @_;
679		951
680	#TODO	952	#TODO
…		…
770	defined $path or return;	1042	defined $path or return;
771		1043
772	unlink "$path.pst";	1044	unlink "$path.pst";
773	};	1045	};
774		1046
775	attach_to_maps prio => -10000, package => cf::mapsupport::;	1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
776		1048
777	#############################################################################	1049	#############################################################################
778	# load/save perl data associated with player->ob objects	1050	# load/save perl data associated with player->ob objects
779		1051
780	sub all_objects(@) {	1052	sub all_objects(@) {
781	@_, map all_objects ($_->inv), @_	1053	@_, map all_objects ($_->inv), @_
782	}	1054	}
783		1055
784	# TODO: compatibility cruft, remove when no longer needed	1056	# TODO: compatibility cruft, remove when no longer needed
785	attach_to_players	1057	cf::player->attach (
786	on_load => sub {	1058	on_load => sub {
787	my ($pl, $path) = @_;	1059	my ($pl, $path) = @_;
788		1060
789	for my $o (all_objects $pl->ob) {	1061	for my $o (all_objects $pl->ob) {
790	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
792		1064
793	%$o = %{ Storable::thaw pack "H*", $value };	1065	%$o = %{ Storable::thaw pack "H*", $value };
794	}	1066	}
795	}	1067	}
796	},	1068	},
797	;	1069	);
798		1070
799	#############################################################################	1071	#############################################################################
800		1072
801	=head2 CORE EXTENSIONS	1073	=head2 CORE EXTENSIONS
802		1074
803	Functions and methods that extend core crossfire objects.	1075	Functions and methods that extend core crossfire objects.
804		1076
		1077	=cut
		1078
		1079	package cf::player;
		1080
		1081	=head3 cf::player
		1082
805	=over 4	1083	=over 4
806		1084
807	=item cf::player::exists $login	1085	=item cf::player::find $login
808		1086
809	Returns true when the given account exists.	1087	Returns the given player object, loading it if necessary (might block).
810		1088
811	=cut	1089	=cut
812		1090
813	sub cf::player::exists($) {	1091	sub playerdir($) {
814	cf::player::find $_[0]	1092	cf::localdir
815	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1093	. "/"
		1094	. cf::playerdir
		1095	. "/"
		1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])
816	}	1097	}
		1098
		1099	sub path($) {
		1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1101
		1102	(playerdir $login) . "/$login.pl"
		1103	}
		1104
		1105	sub find_active($) {
		1106	$cf::PLAYER{$_[0]}
		1107	and $cf::PLAYER{$_[0]}->active
		1108	and $cf::PLAYER{$_[0]}
		1109	}
		1110
		1111	sub exists($) {
		1112	my ($login) = @_;
		1113
		1114	$cf::PLAYER{$login}
		1115	or cf::sync_job { !aio_stat $login }
		1116	}
		1117
		1118	sub find($) {
		1119	return $cf::PLAYER{$_[0]} || do {
		1120	my $login = $_[0];
		1121
		1122	my $guard = cf::lock_acquire "user_find:$login";
		1123
		1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);
		1125	};
		1126	}
		1127
		1128	sub save($) {
		1129	my ($pl) = @_;
		1130
		1131	return if $pl->{deny_save};
		1132
		1133	my $path = path $pl;
		1134	my $guard = cf::lock_acquire "user_save:$path";
		1135
		1136	return if $pl->{deny_save};
		1137
		1138	Coro::AIO::aio_mkdir playerdir $pl, 0770;
		1139	$pl->{last_save} = $cf::RUNTIME;
		1140
		1141	$pl->save_pl ($path);
		1142	Coro::cede;
		1143	}
		1144
		1145	sub new($) {
		1146	my ($login) = @_;
		1147
		1148	my $self = create;
		1149
		1150	$self->ob->name ($login);
		1151	$self->{deny_save} = 1;
		1152
		1153	$cf::PLAYER{$login} = $self;
		1154
		1155	$self
		1156	}
		1157
		1158	sub quit_character {
		1159	my ($pl) = @_;
		1160
		1161	$pl->{deny_save} = 1;
		1162	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1163
		1164	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1165	$pl->deactivate;
		1166	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1167	$pl->ns->destroy if $pl->ns;
		1168
		1169	my $path = playerdir $pl;
		1170	my $temp = "$path~$cf::RUNTIME~deleting~";
		1171	IO::AIO::aio_rename $path, $temp, sub {
		1172	delete $cf::PLAYER{$pl->ob->name};
		1173	$pl->destroy;
		1174
		1175	IO::AIO::aio_rmtree $temp;
		1176	};
		1177	}
		1178
		1179	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1180
		1181	Sends an ext reply to the player.
		1182
		1183	=cut
		1184
		1185	sub ext_reply($$$%) {
		1186	my ($self, $id, %msg) = @_;
		1187
		1188	$msg{msgid} = $id;
		1189
		1190	$self->send ("ext " . cf::to_json \%msg);
		1191	}
		1192
		1193	package cf;
		1194
		1195	=back
		1196
		1197
		1198	=head3 cf::map
		1199
		1200	=over 4
		1201
		1202	=cut
		1203
		1204	package cf::map;
		1205
		1206	use Fcntl;
		1207	use Coro::AIO;
		1208
		1209	our $MAX_RESET = 3600;
		1210	our $DEFAULT_RESET = 3000;
		1211
		1212	sub generate_random_map {
		1213	my ($path, $rmp) = @_;
		1214
		1215	# mit "rum" bekleckern, nicht
		1216	cf::map::_create_random_map
		1217	$path,
		1218	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1219	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1220	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1221	$rmp->{exit_on_final_map},
		1222	$rmp->{xsize}, $rmp->{ysize},
		1223	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1224	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1225	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1226	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1227	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1228	(cf::region::find $rmp->{region})
		1229	}
		1230
		1231	# and all this just because we cannot iterate over
		1232	# all maps in C++...
		1233	sub change_all_map_light {
		1234	my ($change) = @_;
		1235
		1236	$_->change_map_light ($change)
		1237	for grep $_->outdoor, values %cf::MAP;
		1238	}
		1239
		1240	sub try_load_header($) {
		1241	my ($path) = @_;
		1242
		1243	utf8::encode $path;
		1244	aio_open $path, O_RDONLY, 0
		1245	or return;
		1246
		1247	my $map = cf::map::new
		1248	or return;
		1249
		1250	# for better error messages only, will be overwritten
		1251	$map->path ($path);
		1252
		1253	$map->load_header ($path)
		1254	or return;
		1255
		1256	$map->{load_path} = $path;
		1257
		1258	$map
		1259	}
		1260
		1261	sub find;
		1262	sub find {
		1263	my ($path, $origin) = @_;
		1264
		1265	#warn "find<$path,$origin>\n";#d#
		1266
		1267	$path = new cf::path $path, $origin && $origin->path;
		1268	my $key = $path->as_string;
		1269
		1270	cf::lock_wait "map_find:$key";
		1271
		1272	$cf::MAP{$key} || do {
		1273	my $guard = cf::lock_acquire "map_find:$key";
		1274
		1275	# do it the slow way
		1276	my $map = try_load_header $path->save_path;
		1277
		1278	Coro::cede;
		1279
		1280	if ($map) {
		1281	$map->last_access ((delete $map->{last_access})
		1282	|| $cf::RUNTIME); #d#
		1283	# safety
		1284	$map->{instantiate_time} = $cf::RUNTIME
		1285	if $map->{instantiate_time} > $cf::RUNTIME;
		1286	} else {
		1287	if (my $rmp = $path->random_map_params) {
		1288	$map = generate_random_map $key, $rmp;
		1289	} else {
		1290	$map = try_load_header $path->load_path;
		1291	}
		1292
		1293	$map or return;
		1294
		1295	$map->{load_original} = 1;
		1296	$map->{instantiate_time} = $cf::RUNTIME;
		1297	$map->last_access ($cf::RUNTIME);
		1298	$map->instantiate;
		1299
		1300	# per-player maps become, after loading, normal maps
		1301	$map->per_player (0) if $path->{user_rel};
		1302	}
		1303
		1304	$map->path ($key);
		1305	$map->{path} = $path;
		1306	$map->{last_save} = $cf::RUNTIME;
		1307
		1308	Coro::cede;
		1309
		1310	if ($map->should_reset) {
		1311	$map->reset;
		1312	undef $guard;
		1313	$map = find $path
		1314	or return;
		1315	}
		1316
		1317	$cf::MAP{$key} = $map
		1318	}
		1319	}
		1320
		1321	sub load {
		1322	my ($self) = @_;
		1323
		1324	my $path = $self->{path};
		1325	my $guard = cf::lock_acquire "map_load:" . $path->as_string;
		1326
		1327	return if $self->in_memory != cf::MAP_SWAPPED;
		1328
		1329	$self->in_memory (cf::MAP_LOADING);
		1330
		1331	$self->alloc;
		1332	$self->load_objects ($self->{load_path}, 1)
		1333	or return;
		1334
		1335	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1336	if delete $self->{load_original};
		1337
		1338	if (my $uniq = $path->uniq_path) {
		1339	utf8::encode $uniq;
		1340	if (aio_open $uniq, O_RDONLY, 0) {
		1341	$self->clear_unique_items;
		1342	$self->load_objects ($uniq, 0);
		1343	}
		1344	}
		1345
		1346	Coro::cede;
		1347
		1348	# now do the right thing for maps
		1349	$self->link_multipart_objects;
		1350
		1351	if ($self->{path}->is_style_map) {
		1352	$self->{deny_save} = 1;
		1353	$self->{deny_reset} = 1;
		1354	} else {
		1355	$self->fix_auto_apply;
		1356	$self->decay_objects;
		1357	$self->update_buttons;
		1358	$self->set_darkness_map;
		1359	$self->difficulty ($self->estimate_difficulty)
		1360	unless $self->difficulty;
		1361	$self->activate;
		1362	}
		1363
		1364	Coro::cede;
		1365
		1366	$self->in_memory (cf::MAP_IN_MEMORY);
		1367	}
		1368
		1369	sub find_sync {
		1370	my ($path, $origin) = @_;
		1371
		1372	cf::sync_job { cf::map::find $path, $origin }
		1373	}
		1374
		1375	sub do_load_sync {
		1376	my ($map) = @_;
		1377
		1378	cf::sync_job { $map->load };
		1379	}
		1380
		1381	sub save {
		1382	my ($self) = @_;
		1383
		1384	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1385
		1386	$self->{last_save} = $cf::RUNTIME;
		1387
		1388	return unless $self->dirty;
		1389
		1390	my $save = $self->{path}->save_path; utf8::encode $save;
		1391	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
		1392
		1393	$self->{load_path} = $save;
		1394
		1395	return if $self->{deny_save};
		1396
		1397	local $self->{last_access} = $self->last_access;#d#
		1398
		1399	cf::async {
		1400	$_->contr->save for $self->players;
		1401	};
		1402
		1403	if ($uniq) {
		1404	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1405	$self->save_objects ($uniq, cf::IO_UNIQUES);
		1406	} else {
		1407	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1408	}
		1409	}
		1410
		1411	sub swap_out {
		1412	my ($self) = @_;
		1413
		1414	# save first because save cedes
		1415	$self->save;
		1416
		1417	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1418
		1419	return if $self->players;
		1420	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1421	return if $self->{deny_save};
		1422
		1423	$self->clear;
		1424	$self->in_memory (cf::MAP_SWAPPED);
		1425	}
		1426
		1427	sub reset_at {
		1428	my ($self) = @_;
		1429
		1430	# TODO: safety, remove and allow resettable per-player maps
		1431	return 1e99 if $self->{path}{user_rel};
		1432	return 1e99 if $self->{deny_reset};
		1433
		1434	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1435	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1436
		1437	$time + $to
		1438	}
		1439
		1440	sub should_reset {
		1441	my ($self) = @_;
		1442
		1443	$self->reset_at <= $cf::RUNTIME
		1444	}
		1445
		1446	sub unlink_save {
		1447	my ($self) = @_;
		1448
		1449	utf8::encode (my $save = $self->{path}->save_path);
		1450	aioreq_pri 3; IO::AIO::aio_unlink $save;
		1451	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
		1452	}
		1453
		1454	sub rename {
		1455	my ($self, $new_path) = @_;
		1456
		1457	$self->unlink_save;
		1458
		1459	delete $cf::MAP{$self->path};
		1460	$self->{path} = new cf::path $new_path;
		1461	$self->path ($self->{path}->as_string);
		1462	$cf::MAP{$self->path} = $self;
		1463
		1464	$self->save;
		1465	}
		1466
		1467	sub reset {
		1468	my ($self) = @_;
		1469
		1470	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1471
		1472	return if $self->players;
		1473	return if $self->{path}{user_rel};#d#
		1474
		1475	warn "resetting map ", $self->path;#d#
		1476
		1477	delete $cf::MAP{$self->path};
		1478
		1479	$_->clear_links_to ($self) for values %cf::MAP;
		1480
		1481	$self->unlink_save;
		1482	$self->destroy;
		1483	}
		1484
		1485	my $nuke_counter = "aaaa";
		1486
		1487	sub nuke {
		1488	my ($self) = @_;
		1489
		1490	$self->{deny_save} = 1;
		1491	$self->reset_timeout (1);
		1492	$self->rename ("{nuke}/" . ($nuke_counter++));
		1493	$self->reset; # polite request, might not happen
		1494	}
		1495
		1496	sub customise_for {
		1497	my ($map, $ob) = @_;
		1498
		1499	if ($map->per_player) {
		1500	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};
		1501	}
		1502
		1503	$map
		1504	}
		1505
		1506	sub emergency_save {
		1507	my $freeze_guard = cf::freeze_mainloop;
		1508
		1509	warn "enter emergency perl save\n";
		1510
		1511	cf::sync_job {
		1512	warn "begin emergency player save\n";
		1513	$_->save for values %cf::PLAYER;
		1514	warn "end emergency player save\n";
		1515
		1516	warn "begin emergency map save\n";
		1517	$_->save for values %cf::MAP;
		1518	warn "end emergency map save\n";
		1519	};
		1520
		1521	warn "leave emergency perl save\n";
		1522	}
		1523
		1524	package cf;
		1525
		1526	=back
		1527
		1528
		1529	=head3 cf::object::player
		1530
		1531	=over 4
817		1532
818	=item $player_object->reply ($npc, $msg[, $flags])	1533	=item $player_object->reply ($npc, $msg[, $flags])
819		1534
820	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1535	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
821	can be C<undef>. Does the right thing when the player is currently in a	1536	can be C<undef>. Does the right thing when the player is currently in a
…		…
823		1538
824	=cut	1539	=cut
825		1540
826	# rough implementation of a future "reply" method that works	1541	# rough implementation of a future "reply" method that works
827	# with dialog boxes.	1542	# with dialog boxes.
		1543	#TODO: the first argument must go, split into a $npc->reply_to ( method
828	sub cf::object::player::reply($$$;$) {	1544	sub cf::object::player::reply($$$;$) {
829	my ($self, $npc, $msg, $flags) = @_;	1545	my ($self, $npc, $msg, $flags) = @_;
830		1546
831	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1547	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
832		1548
…		…
836	$msg = $npc->name . " says: $msg" if $npc;	1552	$msg = $npc->name . " says: $msg" if $npc;
837	$self->message ($msg, $flags);	1553	$self->message ($msg, $flags);
838	}	1554	}
839	}	1555	}
840		1556
841	=item $player->ext_reply ($msgid, $msgtype, %msg)
842
843	Sends an ext reply to the player.
844
845	=cut
846
847	sub cf::player::ext_reply($$$%) {
848	my ($self, $id, %msg) = @_;
849
850	$msg{msgid} = $id;
851
852	$self->send ("ext " . to_json \%msg);
853	}
854
855	=item $player_object->may ("access")	1557	=item $player_object->may ("access")
856		1558
857	Returns wether the given player is authorized to access resource "access"	1559	Returns wether the given player is authorized to access resource "access"
858	(e.g. "command_wizcast").	1560	(e.g. "command_wizcast").
859		1561
…		…
866	(ref $cf::CFG{"may_$access"}	1568	(ref $cf::CFG{"may_$access"}
867	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1569	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
868	: $cf::CFG{"may_$access"})	1570	: $cf::CFG{"may_$access"})
869	}	1571	}
870		1572
871	=cut	1573	=item $player_object->enter_link
872		1574
873	#############################################################################	1575	Freezes the player and moves him/her to a special map (C<{link}>).
		1576
		1577	The player should be reaosnably safe there for short amounts of time. You
		1578	I<MUST> call C<leave_link> as soon as possible, though.
		1579
		1580	=item $player_object->leave_link ($map, $x, $y)
		1581
		1582	Moves the player out of the specila link map onto the given map. If the
		1583	map is not valid (or omitted), the player will be moved back to the
		1584	location he/she was before the call to C<enter_link>, or, if that fails,
		1585	to the emergency map position.
		1586
		1587	Might block.
		1588
		1589	=cut
		1590
		1591	sub cf::object::player::enter_link {
		1592	my ($self) = @_;
		1593
		1594	$self->deactivate_recursive;
		1595
		1596	return if $self->map == $LINK_MAP;
		1597
		1598	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1599	if $self->map;
		1600
		1601	$self->enter_map ($LINK_MAP, 20, 20);
		1602	}
		1603
		1604	sub cf::object::player::leave_link {
		1605	my ($self, $map, $x, $y) = @_;
		1606
		1607	my $link_pos = delete $self->{_link_pos};
		1608
		1609	unless ($map) {
		1610	# restore original map position
		1611	($map, $x, $y) = @{ $link_pos || [] };
		1612	$map = cf::map::find $map;
		1613
		1614	unless ($map) {
		1615	($map, $x, $y) = @$EMERGENCY_POSITION;
		1616	$map = cf::map::find $map
		1617	or die "FATAL: cannot load emergency map\n";
		1618	}
		1619	}
		1620
		1621	($x, $y) = (-1, -1)
		1622	unless (defined $x) && (defined $y);
		1623
		1624	# use -1 or undef as default coordinates, not 0, 0
		1625	($x, $y) = ($map->enter_x, $map->enter_y)
		1626	if $x <=0 && $y <= 0;
		1627
		1628	$map->load;
		1629
		1630	return unless $self->contr->active;
		1631	$self->activate_recursive;
		1632	$self->enter_map ($map, $x, $y);
		1633	}
		1634
		1635	cf::player->attach (
		1636	on_logout => sub {
		1637	my ($pl) = @_;
		1638
		1639	# abort map switching before logout
		1640	if ($pl->ob->{_link_pos}) {
		1641	cf::sync_job {
		1642	$pl->ob->leave_link
		1643	};
		1644	}
		1645	},
		1646	on_login => sub {
		1647	my ($pl) = @_;
		1648
		1649	# try to abort aborted map switching on player login :)
		1650	# should happen only on crashes
		1651	if ($pl->ob->{_link_pos}) {
		1652	$pl->ob->enter_link;
		1653	(async {
		1654	# we need this sleep as the login has a concurrent enter_exit running
		1655	# and this sleep increases chances of the player not ending up in scorn
		1656	$pl->ob->reply (undef,
		1657	"There was an internal problem at your last logout, "
		1658	. "the server will try to bring you to your intended destination in a second.",
		1659	cf::NDI_RED);
		1660	Coro::Timer::sleep 1;
		1661	$pl->ob->leave_link;
		1662	})->prio (2);
		1663	}
		1664	},
		1665	);
		1666
		1667	=item $player_object->goto ($path, $x, $y)
		1668
		1669	=cut
		1670
		1671	sub cf::object::player::goto {
		1672	my ($self, $path, $x, $y) = @_;
		1673
		1674	$self->enter_link;
		1675
		1676	(async {
		1677	$path = new cf::path $path;
		1678
		1679	my $map = cf::map::find $path->as_string;
		1680	$map = $map->customise_for ($self) if $map;
		1681
		1682	# warn "entering ", $map->path, " at ($x, $y)\n"
		1683	# if $map;
		1684
		1685	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1686
		1687	$self->leave_link ($map, $x, $y);
		1688	})->prio (1);
		1689	}
		1690
		1691	=item $player_object->enter_exit ($exit_object)
		1692
		1693	=cut
		1694
		1695	sub parse_random_map_params {
		1696	my ($spec) = @_;
		1697
		1698	my $rmp = { # defaults
		1699	xsize => 10,
		1700	ysize => 10,
		1701	};
		1702
		1703	for (split /\n/, $spec) {
		1704	my ($k, $v) = split /\s+/, $_, 2;
		1705
		1706	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1707	}
		1708
		1709	$rmp
		1710	}
		1711
		1712	sub prepare_random_map {
		1713	my ($exit) = @_;
		1714
		1715	# all this does is basically replace the /! path by
		1716	# a new random map path (?random/...) with a seed
		1717	# that depends on the exit object
		1718
		1719	my $rmp = parse_random_map_params $exit->msg;
		1720
		1721	if ($exit->map) {
		1722	$rmp->{region} = $exit->map->region_name;
		1723	$rmp->{origin_map} = $exit->map->path;
		1724	$rmp->{origin_x} = $exit->x;
		1725	$rmp->{origin_y} = $exit->y;
		1726	}
		1727
		1728	$rmp->{random_seed} ||= $exit->random_seed;
		1729
		1730	my $data = cf::to_json $rmp;
		1731	my $md5 = Digest::MD5::md5_hex $data;
		1732
		1733	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1734	aio_write $fh, 0, (length $data), $data, 0;
		1735
		1736	$exit->slaying ("?random/$md5");
		1737	$exit->msg (undef);
		1738	}
		1739	}
		1740
		1741	sub cf::object::player::enter_exit {
		1742	my ($self, $exit) = @_;
		1743
		1744	return unless $self->type == cf::PLAYER;
		1745
		1746	$self->enter_link;
		1747
		1748	(async {
		1749	$self->deactivate_recursive; # just to be sure
		1750	unless (eval {
		1751	prepare_random_map $exit
		1752	if $exit->slaying eq "/!";
		1753
		1754	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
		1755	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1756
		1757	1;
		1758	}) {
		1759	$self->message ("Something went wrong deep within the crossfire server. "
		1760	. "I'll try to bring you back to the map you were before. "
		1761	. "Please report this to the dungeon master",
		1762	cf::NDI_UNIQUE | cf::NDI_RED);
		1763
		1764	warn "ERROR in enter_exit: $@";
		1765	$self->leave_link;
		1766	}
		1767	})->prio (1);
		1768	}
		1769
		1770	=head3 cf::client
		1771
		1772	=over 4
		1773
		1774	=item $client->send_drawinfo ($text, $flags)
		1775
		1776	Sends a drawinfo packet to the client. Circumvents output buffering so
		1777	should not be used under normal circumstances.
		1778
		1779	=cut
		1780
		1781	sub cf::client::send_drawinfo {
		1782	my ($self, $text, $flags) = @_;
		1783
		1784	utf8::encode $text;
		1785	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1786	}
		1787
		1788
		1789	=item $success = $client->query ($flags, "text", \&cb)
		1790
		1791	Queues a query to the client, calling the given callback with
		1792	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1793	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1794
		1795	Queries can fail, so check the return code. Or don't, as queries will become
		1796	reliable at some point in the future.
		1797
		1798	=cut
		1799
		1800	sub cf::client::query {
		1801	my ($self, $flags, $text, $cb) = @_;
		1802
		1803	return unless $self->state == ST_PLAYING
		1804	|| $self->state == ST_SETUP
		1805	|| $self->state == ST_CUSTOM;
		1806
		1807	$self->state (ST_CUSTOM);
		1808
		1809	utf8::encode $text;
		1810	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1811
		1812	$self->send_packet ($self->{query_queue}[0][0])
		1813	if @{ $self->{query_queue} } == 1;
		1814	}
		1815
		1816	cf::client->attach (
		1817	on_reply => sub {
		1818	my ($ns, $msg) = @_;
		1819
		1820	# this weird shuffling is so that direct followup queries
		1821	# get handled first
		1822	my $queue = delete $ns->{query_queue}
		1823	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1824
		1825	(shift @$queue)->[1]->($msg);
		1826
		1827	push @{ $ns->{query_queue} }, @$queue;
		1828
		1829	if (@{ $ns->{query_queue} } == @$queue) {
		1830	if (@$queue) {
		1831	$ns->send_packet ($ns->{query_queue}[0][0]);
		1832	} else {
		1833	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1834	}
		1835	}
		1836	},
		1837	);
		1838
		1839	=item $client->async (\&cb)
		1840
		1841	Create a new coroutine, running the specified callback. The coroutine will
		1842	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1843	or loss of connection).
		1844
		1845	=cut
		1846
		1847	sub cf::client::async {
		1848	my ($self, $cb) = @_;
		1849
		1850	my $coro = &Coro::async ($cb);
		1851
		1852	$coro->on_destroy (sub {
		1853	delete $self->{_coro}{$coro+0};
		1854	});
		1855
		1856	$self->{_coro}{$coro+0} = $coro;
		1857
		1858	$coro
		1859	}
		1860
		1861	cf::client->attach (
		1862	on_destroy => sub {
		1863	my ($ns) = @_;
		1864
		1865	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1866	},
		1867	);
		1868
		1869	=back
		1870
874		1871
875	=head2 SAFE SCRIPTING	1872	=head2 SAFE SCRIPTING
876		1873
877	Functions that provide a safe environment to compile and execute	1874	Functions that provide a safe environment to compile and execute
878	snippets of perl code without them endangering the safety of the server	1875	snippets of perl code without them endangering the safety of the server
…		…
1030		2027
1031	{	2028	{
1032	my $path = cf::localdir . "/database.pst";	2029	my $path = cf::localdir . "/database.pst";
1033		2030
1034	sub db_load() {	2031	sub db_load() {
1035	warn "loading database $path\n";#d# remove later
1036	$DB = stat $path ? Storable::retrieve $path : { };	2032	$DB = stat $path ? Storable::retrieve $path : { };
1037	}	2033	}
1038		2034
1039	my $pid;	2035	my $pid;
1040		2036
1041	sub db_save() {	2037	sub db_save() {
1042	warn "saving database $path\n";#d# remove later
1043	waitpid $pid, 0 if $pid;	2038	waitpid $pid, 0 if $pid;
1044	if (0 == ($pid = fork)) {	2039	if (0 == ($pid = fork)) {
1045	$DB->{_meta}{version} = 1;	2040	$DB->{_meta}{version} = 1;
1046	Storable::nstore $DB, "$path~";	2041	Storable::nstore $DB, "$path~";
1047	rename "$path~", $path;	2042	rename "$path~", $path;
…		…
1078	$DB->{$_[0]} = $_[1];	2073	$DB->{$_[0]} = $_[1];
1079	}	2074	}
1080	db_dirty;	2075	db_dirty;
1081	}	2076	}
1082		2077
1083	attach_global	2078	cf::global->attach (
1084	prio => 10000,	2079	prio => 10000,
1085	on_cleanup => sub {	2080	on_cleanup => sub {
1086	db_sync;	2081	db_sync;
1087	},	2082	},
1088	;	2083	);
1089	}	2084	}
1090		2085
1091	#############################################################################	2086	#############################################################################
1092	# the server's main()	2087	# the server's main()
1093		2088
…		…
1095	open my $fh, "<:utf8", cf::confdir . "/config"	2090	open my $fh, "<:utf8", cf::confdir . "/config"
1096	or return;	2091	or return;
1097		2092
1098	local $/;	2093	local $/;
1099	*CFG = YAML::Syck::Load <$fh>;	2094	*CFG = YAML::Syck::Load <$fh>;
		2095
		2096	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2097
		2098	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2099	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2100
		2101	if (exists $CFG{mlockall}) {
		2102	eval {
		2103	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2104	and die "WARNING: m(un)lockall failed: $!\n";
		2105	};
		2106	warn $@ if $@;
		2107	}
1100	}	2108	}
1101		2109
1102	sub main {	2110	sub main {
		2111	# we must not ever block the main coroutine
		2112	local $Coro::idle = sub {
		2113	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2114	async { Event::one_event };
		2115	};
		2116
1103	cfg_load;	2117	cfg_load;
1104	db_load;	2118	db_load;
1105	load_extensions;	2119	load_extensions;
1106	Event::loop;	2120	Event::loop;
1107	}	2121	}
1108		2122
1109	#############################################################################	2123	#############################################################################
1110	# initialisation	2124	# initialisation
1111		2125
1112	sub _perl_reload(&) {	2126	sub reload() {
1113	my ($msg) = @_;	2127	# can/must only be called in main
		2128	if ($Coro::current != $Coro::main) {
		2129	warn "can only reload from main coroutine\n";
		2130	return;
		2131	}
1114		2132
1115	$msg->("reloading...");	2133	warn "reloading...";
		2134
		2135	my $guard = freeze_mainloop;
		2136	cf::emergency_save;
1116		2137
1117	eval {	2138	eval {
		2139	# if anything goes wrong in here, we should simply crash as we already saved
		2140
1118	# cancel all watchers	2141	# cancel all watchers
1119	for (Event::all_watchers) {	2142	for (Event::all_watchers) {
1120	$_->cancel if $_->data & WF_AUTOCANCEL;	2143	$_->cancel if $_->data & WF_AUTOCANCEL;
1121	}	2144	}
1122		2145
		2146	# cancel all extension coros
		2147	$_->cancel for values %EXT_CORO;
		2148	%EXT_CORO = ();
		2149
1123	# unload all extensions	2150	# unload all extensions
1124	for (@exts) {	2151	for (@exts) {
1125	$msg->("unloading <$_>");	2152	warn "unloading <$_>";
1126	unload_extension $_;	2153	unload_extension $_;
1127	}	2154	}
1128		2155
1129	# unload all modules loaded from $LIBDIR	2156	# unload all modules loaded from $LIBDIR
1130	while (my ($k, $v) = each %INC) {	2157	while (my ($k, $v) = each %INC) {
1131	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2158	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1132		2159
1133	$msg->("removing <$k>");	2160	warn "removing <$k>";
1134	delete $INC{$k};	2161	delete $INC{$k};
1135		2162
1136	$k =~ s/\.pm$//;	2163	$k =~ s/\.pm$//;
1137	$k =~ s/\//::/g;	2164	$k =~ s/\//::/g;
1138		2165
…		…
1143	Symbol::delete_package $k;	2170	Symbol::delete_package $k;
1144	}	2171	}
1145		2172
1146	# sync database to disk	2173	# sync database to disk
1147	cf::db_sync;	2174	cf::db_sync;
		2175	IO::AIO::flush;
1148		2176
1149	# get rid of safe::, as good as possible	2177	# get rid of safe::, as good as possible
1150	Symbol::delete_package "safe::$_"	2178	Symbol::delete_package "safe::$_"
1151	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2179	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1152		2180
1153	# remove register_script_function callbacks	2181	# remove register_script_function callbacks
1154	# TODO	2182	# TODO
1155		2183
1156	# unload cf.pm "a bit"	2184	# unload cf.pm "a bit"
…		…
1159	# don't, removes xs symbols, too,	2187	# don't, removes xs symbols, too,
1160	# and global variables created in xs	2188	# and global variables created in xs
1161	#Symbol::delete_package __PACKAGE__;	2189	#Symbol::delete_package __PACKAGE__;
1162		2190
1163	# reload cf.pm	2191	# reload cf.pm
1164	$msg->("reloading cf.pm");	2192	warn "reloading cf.pm";
1165	require cf;	2193	require cf;
		2194	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1166		2195
1167	# load config and database again	2196	# load config and database again
1168	cf::cfg_load;	2197	cf::cfg_load;
1169	cf::db_load;	2198	cf::db_load;
1170		2199
1171	# load extensions	2200	# load extensions
1172	$msg->("load extensions");	2201	warn "load extensions";
1173	cf::load_extensions;	2202	cf::load_extensions;
1174		2203
1175	# reattach attachments to objects	2204	# reattach attachments to objects
1176	$msg->("reattach");	2205	warn "reattach";
1177	_global_reattach;	2206	_global_reattach;
		2207	reattach $_ for values %MAP;
1178	};	2208	};
1179	$msg->($@) if $@;
1180		2209
1181	$msg->("reloaded");	2210	if ($@) {
		2211	warn $@;
		2212	warn "error while reloading, exiting.";
		2213	exit 1;
		2214	}
		2215
		2216	warn "reloaded successfully";
1182	};	2217	};
1183		2218
1184	sub perl_reload() {	2219	#############################################################################
1185	_perl_reload {	2220
1186	warn $_[0];	2221	unless ($LINK_MAP) {
1187	print "$_[0]\n";	2222	$LINK_MAP = cf::map::new;
1188	};	2223
		2224	$LINK_MAP->width (41);
		2225	$LINK_MAP->height (41);
		2226	$LINK_MAP->alloc;
		2227	$LINK_MAP->path ("{link}");
		2228	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		2229	$LINK_MAP->in_memory (MAP_IN_MEMORY);
		2230
		2231	# dirty hack because... archetypes are not yet loaded
		2232	Event->timer (
		2233	after => 10,
		2234	cb => sub {
		2235	$_[0]->w->cancel;
		2236
		2237	# provide some exits "home"
		2238	my $exit = cf::object::new "exit";
		2239
		2240	$exit->slaying ($EMERGENCY_POSITION->[0]);
		2241	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
		2242	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
		2243
		2244	$LINK_MAP->insert ($exit->clone, 19, 19);
		2245	$LINK_MAP->insert ($exit->clone, 19, 20);
		2246	$LINK_MAP->insert ($exit->clone, 19, 21);
		2247	$LINK_MAP->insert ($exit->clone, 20, 19);
		2248	$LINK_MAP->insert ($exit->clone, 20, 21);
		2249	$LINK_MAP->insert ($exit->clone, 21, 19);
		2250	$LINK_MAP->insert ($exit->clone, 21, 20);
		2251	$LINK_MAP->insert ($exit->clone, 21, 21);
		2252
		2253	$exit->destroy;
		2254	});
		2255
		2256	$LINK_MAP->{deny_save} = 1;
		2257	$LINK_MAP->{deny_reset} = 1;
		2258
		2259	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1189	}	2260	}
1190		2261
1191	register "<global>", __PACKAGE__;	2262	register "<global>", __PACKAGE__;
1192		2263
1193	register_command "perl-reload" => sub {	2264	register_command "reload" => sub {
1194	my ($who, $arg) = @_;	2265	my ($who, $arg) = @_;
1195		2266
1196	if ($who->flag (FLAG_WIZ)) {	2267	if ($who->flag (FLAG_WIZ)) {
1197	_perl_reload {	2268	$who->message ("start of reload.");
1198	warn $_[0];	2269	reload;
1199	$who->message ($_[0]);	2270	$who->message ("end of reload.");
1200	};
1201	}	2271	}
1202	};	2272	};
1203		2273
1204	unshift @INC, $LIBDIR;	2274	unshift @INC, $LIBDIR;
1205		2275
1206	$TICK_WATCHER = Event->timer (	2276	$TICK_WATCHER = Event->timer (
		2277	reentrant => 0,
1207	prio => 0,	2278	prio => 0,
1208	at => $NEXT_TICK || 1,	2279	at => $NEXT_TICK || $TICK,
1209	data => WF_AUTOCANCEL,	2280	data => WF_AUTOCANCEL,
1210	cb => sub {	2281	cb => sub {
1211	cf::server_tick; # one server iteration	2282	cf::server_tick; # one server iteration
1212		2283	$RUNTIME += $TICK;
1213	my $NOW = Event::time;
1214	$NEXT_TICK += $TICK;	2284	$NEXT_TICK += $TICK;
1215		2285
1216	# if we are delayed by four ticks or more, skip them all	2286	# if we are delayed by four ticks or more, skip them all
1217	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2287	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1218		2288
1219	$TICK_WATCHER->at ($NEXT_TICK);	2289	$TICK_WATCHER->at ($NEXT_TICK);
1220	$TICK_WATCHER->start;	2290	$TICK_WATCHER->start;
1221	},	2291	},
1222	);	2292	);
1223		2293
1224	IO::AIO::max_poll_time $TICK * 0.2;	2294	IO::AIO::max_poll_time $TICK * 0.2;
1225		2295
		2296	Event->io (
1226	Event->io (fd => IO::AIO::poll_fileno,	2297	fd => IO::AIO::poll_fileno,
1227	poll => 'r',	2298	poll => 'r',
1228	prio => 5,	2299	prio => 5,
1229	data => WF_AUTOCANCEL,	2300	data => WF_AUTOCANCEL,
1230	cb => \&IO::AIO::poll_cb);	2301	cb => \&IO::AIO::poll_cb,
		2302	);
		2303
		2304	Event->timer (
		2305	data => WF_AUTOCANCEL,
		2306	after => 0,
		2307	interval => 10,
		2308	cb => sub {
		2309	(Coro::unblock_sub {
		2310	write_runtime
		2311	or warn "ERROR: unable to write runtime file: $!";
		2312	})->();
		2313	},
		2314	);
		2315
		2316	END { cf::emergency_save }
1231		2317
1232	1	2318	1
1233		2319

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