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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.74 by root, Sun Oct 1 15:59:29 2006 UTC vs.
Revision 1.171 by root, Sun Jan 14 12:24:48 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 Data::Dumper;
		21	use Digest::MD5;
		22	use Fcntl;
		23	use IO::AIO 2.32 ();
10	use YAML::Syck ();	24	use YAML::Syck ();
11	use Time::HiRes;	25	use Time::HiRes;
12	use Event;	26
13	$Event::Eval = 1; # no idea why this is required, but it is	27	use Event; $Event::Eval = 1; # no idea why this is required, but it is
		28
		29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
14		30
15	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
16	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
17		33
18	use strict;	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
19		35
20	_init_vars;
21
22	our %COMMAND = ();	36	our %COMMAND = ();
		37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
		40	our %EXTCMD = ();
		41	our %EXT_CORO = (); # coroutines bound to extensions
		42	our %EXT_MAP = (); # pluggable maps
		43
23	our @EVENT;	44	our @EVENT;
24	our $LIBDIR = maps_directory "perl";	45	our $LIBDIR = datadir . "/ext";
25		46
26	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
27	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
28	our $NEXT_TICK;	51	our $NEXT_TICK;
		52	our $NOW;
29		53
30	our %CFG;	54	our %CFG;
31		55
		56	our $UPTIME; $UPTIME ||= time;
		57	our $RUNTIME;
		58
		59	our %PLAYER; # all users
		60	our %MAP; # all maps
		61	our $LINK_MAP; # the special {link} map, which is always available
		62	our $RANDOM_MAPS = cf::localdir . "/random";
		63
		64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
		65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
		66
		67	# used to convert map paths into valid unix filenames by replacing / by ∕
		68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		69
		70	binmode STDOUT;
		71	binmode STDERR;
		72
		73	# read virtual server time, if available
		74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {
		75	open my $fh, "<", cf::localdir . "/runtime"
		76	or die "unable to read runtime file: $!";
		77	$RUNTIME = <$fh> + 0.;
		78	}
		79
		80	mkdir cf::localdir;
		81	mkdir cf::localdir . "/" . cf::playerdir;
		82	mkdir cf::localdir . "/" . cf::tmpdir;
		83	mkdir cf::localdir . "/" . cf::uniquedir;
		84	mkdir $RANDOM_MAPS;
		85
		86	our $EMERGENCY_POSITION;
		87
32	#############################################################################	88	#############################################################################
33		89
34	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
35		91
36	=over 4	92	=over 4
		93
		94	=item $cf::UPTIME
		95
		96	The timestamp of the server start (so not actually an uptime).
		97
		98	=item $cf::RUNTIME
		99
		100	The time this server has run, starts at 0 and is increased by $cf::TICK on
		101	every server tick.
37		102
38	=item $cf::LIBDIR	103	=item $cf::LIBDIR
39		104
40	The perl library directory, where extensions and cf-specific modules can	105	The perl library directory, where extensions and cf-specific modules can
41	be found. It will be added to C<@INC> automatically.	106	be found. It will be added to C<@INC> automatically.
42		107
		108	=item $cf::NOW
		109
		110	The time of the last (current) server tick.
		111
43	=item $cf::TICK	112	=item $cf::TICK
44		113
45	The interval between server ticks, in seconds.	114	The interval between server ticks, in seconds.
46		115
47	=item %cf::CFG	116	=item %cf::CFG
48		117
49	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
50	from wherever your confdir points to.	119	from wherever your confdir points to.
		120
		121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
		122
		123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
		124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
		125	processing has been done. Call C<< ->wait >> on them to maximise the
		126	window of cpu time available, or simply to synchronise to the server tick.
51		127
52	=back	128	=back
53		129
54	=cut	130	=cut
55		131
56	BEGIN {	132	BEGIN {
57	*CORE::GLOBAL::warn = sub {	133	*CORE::GLOBAL::warn = sub {
58	my $msg = join "", @_;	134	my $msg = join "", @_;
		135	utf8::encode $msg;
		136
59	$msg .= "\n"	137	$msg .= "\n"
60	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
61		139
62	print STDERR "cfperl: $msg";
63	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
64	};	141	};
65	}	142	}
66		143
		144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
67	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
68		150
69	# we bless all objects into (empty) derived classes to force a method lookup	151	# we bless all objects into (empty) derived classes to force a method lookup
70	# within the Safe compartment.	152	# within the Safe compartment.
71	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch cf::living)) {	153	for my $pkg (qw(
		154	cf::global cf::attachable
		155	cf::object cf::object::player
		156	cf::client cf::player
		157	cf::arch cf::living
		158	cf::map cf::party cf::region
		159	)) {
72	no strict 'refs';	160	no strict 'refs';
73	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
74	}	162	}
75		163
76	$Event::DIED = sub {	164	$Event::DIED = sub {
77	warn "error in event callback: @_";	165	warn "error in event callback: @_";
78	};	166	};
79		167
80	my %ext_pkg;
81	my @exts;
82	my @hook;
83	my %command;
84	my %extcmd;
85
86	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
87		169
88	=over 4	170	=over 4
89		171
		172	=item dumpval $ref
		173
90	=cut	174	=cut
		175
		176	sub dumpval {
		177	eval {
		178	local $SIG{__DIE__};
		179	my $d;
		180	if (1) {
		181	$d = new Data::Dumper([$_[0]], ["*var"]);
		182	$d->Terse(1);
		183	$d->Indent(2);
		184	$d->Quotekeys(0);
		185	$d->Useqq(1);
		186	#$d->Bless(...);
		187	$d->Seen($_[1]) if @_ > 1;
		188	$d = $d->Dump();
		189	}
		190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		191	$d
		192	} || "[unable to dump $_[0]: '$@']";
		193	}
91		194
92	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
93		196
94	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
95		198
…		…
111	sub to_json($) {	214	sub to_json($) {
112	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
113	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
114	}	217	}
115		218
		219	=item cf::lock_wait $string
		220
		221	Wait until the given lock is available. See cf::lock_acquire.
		222
		223	=item my $lock = cf::lock_acquire $string
		224
		225	Wait until the given lock is available and then acquires it and returns
		226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		227	for example when the coroutine gets canceled), the lock is automatically
		228	returned.
		229
		230	Lock names should begin with a unique identifier (for example, cf::map::find
		231	uses map_find and cf::map::load uses map_load).
		232
		233	=cut
		234
		235	our %LOCK;
		236
		237	sub lock_wait($) {
		238	my ($key) = @_;
		239
		240	# wait for lock, if any
		241	while ($LOCK{$key}) {
		242	push @{ $LOCK{$key} }, $Coro::current;
		243	Coro::schedule;
		244	}
		245	}
		246
		247	sub lock_acquire($) {
		248	my ($key) = @_;
		249
		250	# wait, to be sure we are not locked
		251	lock_wait $key;
		252
		253	$LOCK{$key} = [];
		254
		255	Coro::guard {
		256	# wake up all waiters, to be on the safe side
		257	$_->ready for @{ delete $LOCK{$key} };
		258	}
		259	}
		260
		261	sub freeze_mainloop {
		262	return unless $TICK_WATCHER->is_active;
		263
		264	my $guard = Coro::guard {
		265	$TICK_WATCHER->start;
		266	$WRITE_RUNTIME_WATCHER->start;
		267	};
		268	$WRITE_RUNTIME_WATCHER->stop;
		269	$TICK_WATCHER->stop;
		270	$guard
		271	}
		272
		273	=item cf::async { BLOCK }
		274
		275	Currently the same as Coro::async_pool, meaning you cannot use
		276	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		277	thing you are allowed to do is call C<prio> on it.
		278
		279	=cut
		280
		281	BEGIN { *async = \&Coro::async_pool }
		282
		283	=item cf::sync_job { BLOCK }
		284
		285	The design of crossfire+ requires that the main coro ($Coro::main) is
		286	always able to handle events or runnable, as crossfire+ is only partly
		287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		288
		289	If it must be done, put the blocking parts into C<sync_job>. This will run
		290	the given BLOCK in another coroutine while waiting for the result. The
		291	server will be frozen during this time, so the block should either finish
		292	fast or be very important.
		293
		294	=cut
		295
		296	sub sync_job(&) {
		297	my ($job) = @_;
		298
		299	if ($Coro::current == $Coro::main) {
		300	# this is the main coro, too bad, we have to block
		301	# till the operation succeeds, freezing the server :/
		302
		303	# TODO: use suspend/resume instead
		304	# (but this is cancel-safe)
		305	my $freeze_guard = freeze_mainloop;
		306
		307	my $busy = 1;
		308	my @res;
		309
		310	(async {
		311	@res = eval { $job->() };
		312	warn $@ if $@;
		313	undef $busy;
		314	})->prio (Coro::PRIO_MAX);
		315
		316	while ($busy) {
		317	Coro::cede or Event::one_event;
		318	}
		319
		320	wantarray ? @res : $res[0]
		321	} else {
		322	# we are in another coroutine, how wonderful, everything just works
		323
		324	$job->()
		325	}
		326	}
		327
		328	=item $coro = cf::async_ext { BLOCK }
		329
		330	Like async, but this coro is automatically being canceled when the
		331	extension calling this is being unloaded.
		332
		333	=cut
		334
		335	sub async_ext(&) {
		336	my $cb = shift;
		337
		338	my $coro = &Coro::async ($cb);
		339
		340	$coro->on_destroy (sub {
		341	delete $EXT_CORO{$coro+0};
		342	});
		343	$EXT_CORO{$coro+0} = $coro;
		344
		345	$coro
		346	}
		347
		348	sub write_runtime {
		349	my $runtime = cf::localdir . "/runtime";
		350
		351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		352	or return;
		353
		354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock
		355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		356	and return;
		357
		358	aio_fsync $fh
		359	and return;
		360
		361	close $fh
		362	or return;
		363
		364	aio_rename "$runtime~", $runtime
		365	and return;
		366
		367	1
		368	}
		369
116	=back	370	=back
117		371
118	=cut	372	=cut
119		373
120	#############################################################################	374	#############################################################################
121		375
122	=head2 EVENTS AND OBJECT ATTACHMENTS	376	=head2 ATTACHABLE OBJECTS
		377
		378	Many objects in crossfire are so-called attachable objects. That means you can
		379	attach callbacks/event handlers (a collection of which is called an "attachment")
		380	to it. All such attachable objects support the following methods.
		381
		382	In the following description, CLASS can be any of C<global>, C<object>
		383	C<player>, C<client> or C<map> (i.e. the attachable objects in
		384	crossfire+).
123		385
124	=over 4	386	=over 4
125		387
126	=item $object->attach ($attachment, key => $value...)
127
128	=item $object->detach ($attachment)
129
130	Attach/detach a pre-registered attachment to an object.
131
132	=item $player->attach ($attachment, key => $value...)
133
134	=item $player->detach ($attachment)
135
136	Attach/detach a pre-registered attachment to a player.
137
138	=item $map->attach ($attachment, key => $value...)	388	=item $attachable->attach ($attachment, key => $value...)
139		389
140	=item $map->detach ($attachment)	390	=item $attachable->detach ($attachment)
141		391
142	Attach/detach a pre-registered attachment to a map.	392	Attach/detach a pre-registered attachment to a specific object and give it
		393	the specified key/value pairs as arguments.
143		394
144	=item $bool = $object->attached ($name)	395	Example, attach a minesweeper attachment to the given object, making it a
		396	10x10 minesweeper game:
145		397
146	=item $bool = $player->attached ($name)	398	$obj->attach (minesweeper => width => 10, height => 10);
147		399
148	=item $bool = $map->attached ($name)	400	=item $bool = $attachable->attached ($name)
149		401
150	Checks wether the named attachment is currently attached to the object.	402	Checks wether the named attachment is currently attached to the object.
151		403
152	=item cf::attach_global ...	404	=item cf::CLASS->attach ...
153		405
154	Attach handlers for global events.	406	=item cf::CLASS->detach ...
155		407
156	This and all following C<attach_*>-functions expect any number of the	408	Define an anonymous attachment and attach it to all objects of the given
157	following handler/hook descriptions:	409	CLASS. See the next function for an explanation of its arguments.
		410
		411	You can attach to global events by using the C<cf::global> class.
		412
		413	Example, log all player logins:
		414
		415	cf::player->attach (
		416	on_login => sub {
		417	my ($pl) = @_;
		418	...
		419	},
		420	);
		421
		422	Example, attach to the jeweler skill:
		423
		424	cf::object->attach (
		425	type => cf::SKILL,
		426	subtype => cf::SK_JEWELER,
		427	on_use_skill => sub {
		428	my ($sk, $ob, $part, $dir, $msg) = @_;
		429	...
		430	},
		431	);
		432
		433	=item cf::CLASS::attachment $name, ...
		434
		435	Register an attachment by C<$name> through which attachable objects of the
		436	given CLASS can refer to this attachment.
		437
		438	Some classes such as crossfire maps and objects can specify attachments
		439	that are attached at load/instantiate time, thus the need for a name.
		440
		441	These calls expect any number of the following handler/hook descriptions:
158		442
159	=over 4	443	=over 4
160		444
161	=item prio => $number	445	=item prio => $number
162		446
…		…
164	by another C<prio> setting). Lower priority handlers get executed	448	by another C<prio> setting). Lower priority handlers get executed
165	earlier. The default priority is C<0>, and many built-in handlers are	449	earlier. The default priority is C<0>, and many built-in handlers are
166	registered at priority C<-1000>, so lower priorities should not be used	450	registered at priority C<-1000>, so lower priorities should not be used
167	unless you know what you are doing.	451	unless you know what you are doing.
168		452
		453	=item type => $type
		454
		455	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		456	given type of objects only (the additional parameter C<subtype> can be
		457	used to further limit to the given subtype).
		458
169	=item on_I<event> => \&cb	459	=item on_I<event> => \&cb
170		460
171	Call the given code reference whenever the named event happens (event is	461	Call the given code reference whenever the named event happens (event is
172	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	462	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
173	handlers are recognised generally depends on the type of object these	463	handlers are recognised generally depends on the type of object these
…		…
182	package and register them. Only handlers for eevents supported by the	472	package and register them. Only handlers for eevents supported by the
183	object/class are recognised.	473	object/class are recognised.
184		474
185	=back	475	=back
186		476
187	=item cf::attach_to_type $object_type, $subtype, ...	477	Example, define an attachment called "sockpuppet" that calls the given
		478	event handler when a monster attacks:
188		479
189	Attach handlers for a specific object type (e.g. TRANSPORT) and	480	cf::object::attachment sockpuppet =>
190	subtype. If C<$subtype> is zero or undef, matches all objects of the given	481	on_skill_attack => sub {
191	type.	482	my ($self, $victim) = @_;
192		483	...
193	=item cf::attach_to_objects ...
194
195	Attach handlers to all objects. Do not use this except for debugging or
196	very rare events, as handlers are (obviously) called for I<all> objects in
197	the game.
198
199	=item cf::attach_to_players ...
200
201	Attach handlers to all players.
202
203	=item cf::attach_to_maps ...
204
205	Attach handlers to all maps.
206
207	=item cf:register_attachment $name, ...
208
209	Register an attachment by name through which objects can refer to this
210	attachment.
211
212	=item cf:register_player_attachment $name, ...
213
214	Register an attachment by name through which players can refer to this
215	attachment.
216
217	=item cf:register_map_attachment $name, ...
218
219	Register an attachment by name through which maps can refer to this
220	attachment.
221
222	=cut
223
224	# the following variables are defined in .xs and must not be re-created
225	our @CB_GLOBAL = (); # registry for all global events
226	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
227	our @CB_PLAYER = ();
228	our @CB_TYPE = (); # registry for type (cf-object class) based events
229	our @CB_MAP = ();
230
231	my %attachment;
232
233	sub _attach_cb($\%$$$) {
234	my ($registry, $undo, $event, $prio, $cb) = @_;
235
236	use sort 'stable';
237
238	$cb = [$prio, $cb];
239
240	@{$registry->[$event]} = sort
241	{ $a->[0] cmp $b->[0] }
242	@{$registry->[$event] || []}, $cb;
243
244	push @{$undo->{cb}}, [$event, $cb];
245	}
246
247	# attach handles attaching event callbacks
248	# the only thing the caller has to do is pass the correct
249	# registry (== where the callback attaches to).
250	sub _attach(\@$@) {
251	my ($registry, $klass, @arg) = @_;
252
253	my $prio = 0;
254
255	my %undo = (
256	registry => $registry,
257	cb => [],
258	);
259
260	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
261
262	while (@arg) {
263	my $type = shift @arg;
264
265	if ($type eq "prio") {
266	$prio = shift @arg;
267
268	} elsif ($type eq "package") {
269	my $pkg = shift @arg;
270
271	while (my ($name, $id) = each %cb_id) {
272	if (my $cb = $pkg->can ($name)) {
273	_attach_cb $registry, %undo, $id, $prio, $cb;
274	}
275	}	484	}
276
277	} elsif (exists $cb_id{$type}) {
278	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
279
280	} elsif (ref $type) {
281	warn "attaching objects not supported, ignoring.\n";
282
283	} else {
284	shift @arg;
285	warn "attach argument '$type' not supported, ignoring.\n";
286	}
287	}
288
289	\%undo
290	}
291
292	sub _attach_attachment {
293	my ($obj, $name, %arg) = @_;
294
295	return if exists $obj->{_attachment}{$name};
296
297	my $res;
298
299	if (my $attach = $attachment{$name}) {
300	my $registry = $obj->registry;
301
302	for (@$attach) {
303	my ($klass, @attach) = @$_;
304	$res = _attach @$registry, $klass, @attach;
305	}
306
307	$obj->{$name} = \%arg;
308	} else {
309	warn "object uses attachment '$name' that is not available, postponing.\n";
310	}
311
312	$obj->{_attachment}{$name} = undef;
313
314	$res->{attachment} = $name;
315	$res
316	}
317
318	*cf::object::attach =
319	*cf::player::attach =
320	*cf::map::attach = sub {
321	my ($obj, $name, %arg) = @_;
322
323	_attach_attachment $obj, $name, %arg;
324	};
325
326	# all those should be optimised
327	*cf::object::detach =
328	*cf::player::detach =
329	*cf::map::detach = sub {
330	my ($obj, $name) = @_;
331
332	delete $obj->{_attachment}{$name};
333	reattach ($obj);
334	};
335
336	*cf::object::attached =
337	*cf::player::attached =
338	*cf::map::attached = sub {
339	my ($obj, $name) = @_;
340
341	exists $obj->{_attachment}{$name}
342	};
343
344	sub attach_global {
345	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
346	}
347
348	sub attach_to_type {
349	my $type = shift;
350	my $subtype = shift;
351
352	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
353	}
354
355	sub attach_to_objects {
356	_attach @CB_OBJECT, KLASS_OBJECT, @_
357	}
358
359	sub attach_to_players {
360	_attach @CB_PLAYER, KLASS_PLAYER, @_
361	}
362
363	sub attach_to_maps {
364	_attach @CB_MAP, KLASS_MAP, @_
365	}
366
367	sub register_attachment {
368	my $name = shift;
369
370	$attachment{$name} = [[KLASS_OBJECT, @_]];
371	}
372
373	sub register_player_attachment {
374	my $name = shift;
375
376	$attachment{$name} = [[KLASS_PLAYER, @_]];
377	}
378
379	sub register_map_attachment {
380	my $name = shift;
381
382	$attachment{$name} = [[KLASS_MAP, @_]];
383	}
384
385	our $override;
386	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
387
388	sub override {
389	$override = 1;
390	@invoke_results = ();
391	}
392
393	sub do_invoke {
394	my $event = shift;
395	my $callbacks = shift;
396
397	@invoke_results = ();
398
399	local $override;
400
401	for (@$callbacks) {
402	eval { &{$_->[1]} };
403
404	if ($@) {
405	warn "$@";
406	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
407	override;
408	}
409
410	return 1 if $override;
411	}
412
413	0	485	}
414	}
415		486
416	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	487	=item $attachable->valid
417
418	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
419
420	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
421
422	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
423
424	Generate a global/object/player/map-specific event with the given arguments.
425
426	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
427	removed in future versions), and there is no public API to access override
428	results (if you must, access C<@cf::invoke_results> directly).
429
430	=back
431
432	=cut
433
434	#############################################################################
435
436	=head2 METHODS VALID FOR ALL CORE OBJECTS
437
438	=over 4
439
440	=item $object->valid, $player->valid, $map->valid
441		488
442	Just because you have a perl object does not mean that the corresponding	489	Just because you have a perl object does not mean that the corresponding
443	C-level object still exists. If you try to access an object that has no	490	C-level object still exists. If you try to access an object that has no
444	valid C counterpart anymore you get an exception at runtime. This method	491	valid C counterpart anymore you get an exception at runtime. This method
445	can be used to test for existence of the C object part without causing an	492	can be used to test for existence of the C object part without causing an
446	exception.	493	exception.
447		494
		495	=cut
		496
		497	# the following variables are defined in .xs and must not be re-created
		498	our @CB_GLOBAL = (); # registry for all global events
		499	our @CB_ATTACHABLE = (); # registry for all attachables
		500	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		501	our @CB_PLAYER = ();
		502	our @CB_CLIENT = ();
		503	our @CB_TYPE = (); # registry for type (cf-object class) based events
		504	our @CB_MAP = ();
		505
		506	my %attachment;
		507
		508	sub cf::attachable::thawer_merge {
		509	# simply override everything except _meta
		510	local $_[0]{_meta};
		511	%{$_[0]} = %{$_[1]};
		512	}
		513
		514	sub _attach_cb($$$$) {
		515	my ($registry, $event, $prio, $cb) = @_;
		516
		517	use sort 'stable';
		518
		519	$cb = [$prio, $cb];
		520
		521	@{$registry->[$event]} = sort
		522	{ $a->[0] cmp $b->[0] }
		523	@{$registry->[$event] || []}, $cb;
		524	}
		525
		526	# hack
		527	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		528
		529	# attach handles attaching event callbacks
		530	# the only thing the caller has to do is pass the correct
		531	# registry (== where the callback attaches to).
		532	sub _attach {
		533	my ($registry, $klass, @arg) = @_;
		534
		535	my $object_type;
		536	my $prio = 0;
		537	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		538
		539	#TODO: get rid of this hack
		540	if ($attachable_klass{$klass}) {
		541	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		542	}
		543
		544	while (@arg) {
		545	my $type = shift @arg;
		546
		547	if ($type eq "prio") {
		548	$prio = shift @arg;
		549
		550	} elsif ($type eq "type") {
		551	$object_type = shift @arg;
		552	$registry = $CB_TYPE[$object_type] ||= [];
		553
		554	} elsif ($type eq "subtype") {
		555	defined $object_type or Carp::croak "subtype specified without type";
		556	my $object_subtype = shift @arg;
		557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		558
		559	} elsif ($type eq "package") {
		560	my $pkg = shift @arg;
		561
		562	while (my ($name, $id) = each %cb_id) {
		563	if (my $cb = $pkg->can ($name)) {
		564	_attach_cb $registry, $id, $prio, $cb;
		565	}
		566	}
		567
		568	} elsif (exists $cb_id{$type}) {
		569	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		570
		571	} elsif (ref $type) {
		572	warn "attaching objects not supported, ignoring.\n";
		573
		574	} else {
		575	shift @arg;
		576	warn "attach argument '$type' not supported, ignoring.\n";
		577	}
		578	}
		579	}
		580
		581	sub _object_attach {
		582	my ($obj, $name, %arg) = @_;
		583
		584	return if exists $obj->{_attachment}{$name};
		585
		586	if (my $attach = $attachment{$name}) {
		587	my $registry = $obj->registry;
		588
		589	for (@$attach) {
		590	my ($klass, @attach) = @$_;
		591	_attach $registry, $klass, @attach;
		592	}
		593
		594	$obj->{$name} = \%arg;
		595	} else {
		596	warn "object uses attachment '$name' that is not available, postponing.\n";
		597	}
		598
		599	$obj->{_attachment}{$name} = undef;
		600	}
		601
		602	sub cf::attachable::attach {
		603	if (ref $_[0]) {
		604	_object_attach @_;
		605	} else {
		606	_attach shift->_attach_registry, @_;
		607	}
		608	};
		609
		610	# all those should be optimised
		611	sub cf::attachable::detach {
		612	my ($obj, $name) = @_;
		613
		614	if (ref $obj) {
		615	delete $obj->{_attachment}{$name};
		616	reattach ($obj);
		617	} else {
		618	Carp::croak "cannot, currently, detach class attachments";
		619	}
		620	};
		621
		622	sub cf::attachable::attached {
		623	my ($obj, $name) = @_;
		624
		625	exists $obj->{_attachment}{$name}
		626	}
		627
		628	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		629	eval "#line " . __LINE__ . " 'cf.pm'
		630	sub cf::\L$klass\E::_attach_registry {
		631	(\\\@CB_$klass, KLASS_$klass)
		632	}
		633
		634	sub cf::\L$klass\E::attachment {
		635	my \$name = shift;
		636
		637	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		638	}
		639	";
		640	die if $@;
		641	}
		642
		643	our $override;
		644	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		645
		646	sub override {
		647	$override = 1;
		648	@invoke_results = ();
		649	}
		650
		651	sub do_invoke {
		652	my $event = shift;
		653	my $callbacks = shift;
		654
		655	@invoke_results = ();
		656
		657	local $override;
		658
		659	for (@$callbacks) {
		660	eval { &{$_->[1]} };
		661
		662	if ($@) {
		663	warn "$@";
		664	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		665	override;
		666	}
		667
		668	return 1 if $override;
		669	}
		670
		671	0
		672	}
		673
		674	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		675
		676	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		677
		678	Generate an object-specific event with the given arguments.
		679
		680	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		681	removed in future versions), and there is no public API to access override
		682	results (if you must, access C<@cf::invoke_results> directly).
		683
448	=back	684	=back
449		685
450	=cut	686	=cut
451
452	*cf::object::valid =
453	*cf::player::valid =
454	*cf::map::valid = \&cf::_valid;
455		687
456	#############################################################################	688	#############################################################################
457	# object support	689	# object support
458		690
459	sub instantiate {
460	my ($obj, $data) = @_;
461
462	$data = from_json $data;
463
464	for (@$data) {
465	my ($name, $args) = @$_;
466
467	$obj->attach ($name, %{$args || {} });
468	}
469	}
470
471	# basically do the same as instantiate, without calling instantiate
472	sub reattach {	691	sub reattach {
		692	# basically do the same as instantiate, without calling instantiate
473	my ($obj) = @_;	693	my ($obj) = @_;
		694
		695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		696
474	my $registry = $obj->registry;	697	my $registry = $obj->registry;
475		698
476	@$registry = ();	699	@$registry = ();
477		700
478	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	701	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
479		702
480	for my $name (keys %{ $obj->{_attachment} || {} }) {	703	for my $name (keys %{ $obj->{_attachment} || {} }) {
481	if (my $attach = $attachment{$name}) {	704	if (my $attach = $attachment{$name}) {
482	for (@$attach) {	705	for (@$attach) {
483	my ($klass, @attach) = @$_;	706	my ($klass, @attach) = @$_;
484	_attach @$registry, $klass, @attach;	707	_attach $registry, $klass, @attach;
485	}	708	}
486	} else {	709	} else {
487	warn "object uses attachment '$name' that is not available, postponing.\n";	710	warn "object uses attachment '$name' that is not available, postponing.\n";
488	}	711	}
489	}	712	}
490	}	713	}
491		714
492	sub object_freezer_save {	715	cf::attachable->attach (
493	my ($filename, $rdata, $objs) = @_;
494
495	if (length $$rdata) {
496	warn sprintf "saving %s (%d,%d)\n",
497	$filename, length $$rdata, scalar @$objs;
498
499	if (open my $fh, ">:raw", "$filename~") {
500	chmod SAVE_MODE, $fh;
501	syswrite $fh, $$rdata;
502	close $fh;
503
504	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
505	chmod SAVE_MODE, $fh;
506	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
507	close $fh;
508	rename "$filename.pst~", "$filename.pst";
509	} else {
510	unlink "$filename.pst";
511	}
512
513	rename "$filename~", $filename;
514	} else {
515	warn "FATAL: $filename~: $!\n";
516	}
517	} else {
518	unlink $filename;
519	unlink "$filename.pst";
520	}
521	}
522
523	sub object_thawer_load {
524	my ($filename) = @_;
525
526	local $/;
527
528	my $av;
529
530	#TODO: use sysread etc.
531	if (open my $data, "<:raw:perlio", $filename) {
532	$data = <$data>;
533	if (open my $pst, "<:raw:perlio", "$filename.pst") {
534	$av = eval { (Storable::thaw <$pst>)->{objs} };
535	}
536	return ($data, $av);
537	}
538
539	()
540	}
541
542	attach_to_objects
543	prio => -1000000,	716	prio => -1000000,
		717	on_instantiate => sub {
		718	my ($obj, $data) = @_;
		719
		720	$data = from_json $data;
		721
		722	for (@$data) {
		723	my ($name, $args) = @$_;
		724
		725	$obj->attach ($name, %{$args || {} });
		726	}
		727	},
		728	on_reattach => \&reattach,
544	on_clone => sub {	729	on_clone => sub {
545	my ($src, $dst) = @_;	730	my ($src, $dst) = @_;
546		731
547	@{$dst->registry} = @{$src->registry};	732	@{$dst->registry} = @{$src->registry};
548		733
549	%$dst = %$src;	734	%$dst = %$src;
550		735
551	%{$dst->{_attachment}} = %{$src->{_attachment}}	736	%{$dst->{_attachment}} = %{$src->{_attachment}}
552	if exists $src->{_attachment};	737	if exists $src->{_attachment};
553	},	738	},
554	;	739	);
		740
		741	sub object_freezer_save {
		742	my ($filename, $rdata, $objs) = @_;
		743
		744	sync_job {
		745	if (length $$rdata) {
		746	warn sprintf "saving %s (%d,%d)\n",
		747	$filename, length $$rdata, scalar @$objs;
		748
		749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		750	chmod SAVE_MODE, $fh;
		751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		752	aio_fsync $fh;
		753	close $fh;
		754
		755	if (@$objs) {
		756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		757	chmod SAVE_MODE, $fh;
		758	my $data = Storable::nfreeze { version => 1, objs => $objs };
		759	aio_write $fh, 0, (length $data), $data, 0;
		760	aio_fsync $fh;
		761	close $fh;
		762	aio_rename "$filename.pst~", "$filename.pst";
		763	}
		764	} else {
		765	aio_unlink "$filename.pst";
		766	}
		767
		768	aio_rename "$filename~", $filename;
		769	} else {
		770	warn "FATAL: $filename~: $!\n";
		771	}
		772	} else {
		773	aio_unlink $filename;
		774	aio_unlink "$filename.pst";
		775	}
		776	}
		777	}
		778
		779	sub object_freezer_as_string {
		780	my ($rdata, $objs) = @_;
		781
		782	use Data::Dumper;
		783
		784	$$rdata . Dumper $objs
		785	}
		786
		787	sub object_thawer_load {
		788	my ($filename) = @_;
		789
		790	my ($data, $av);
		791
		792	(aio_load $filename, $data) >= 0
		793	or return;
		794
		795	unless (aio_stat "$filename.pst") {
		796	(aio_load "$filename.pst", $av) >= 0
		797	or return;
		798	$av = eval { (Storable::thaw $av)->{objs} };
		799	}
		800
		801	warn sprintf "loading %s (%d)\n",
		802	$filename, length $data, scalar @{$av || []};#d#
		803	return ($data, $av);
		804	}
555		805
556	#############################################################################	806	#############################################################################
557	# old plug-in events	807	# command handling &c
558		808
559	sub inject_event {	809	=item cf::register_command $name => \&callback($ob,$args);
560	my $extension = shift;
561	my $event_code = shift;
562		810
563	my $cb = $hook[$event_code]{$extension}	811	Register a callback for execution when the client sends the user command
564	or return;	812	$name.
565		813
566	&$cb	814	=cut
567	}
568
569	sub inject_global_event {
570	my $event = shift;
571
572	my $cb = $hook[$event]
573	or return;
574
575	List::Util::max map &$_, values %$cb
576	}
577
578	sub inject_command {
579	my ($name, $obj, $params) = @_;
580
581	for my $cmd (@{ $command{$name} }) {
582	$cmd->[1]->($obj, $params);
583	}
584
585	-1
586	}
587		815
588	sub register_command {	816	sub register_command {
589	my ($name, $time, $cb) = @_;	817	my ($name, $cb) = @_;
590		818
591	my $caller = caller;	819	my $caller = caller;
592	#warn "registering command '$name/$time' to '$caller'";	820	#warn "registering command '$name/$time' to '$caller'";
593		821
594	push @{ $command{$name} }, [$time, $cb, $caller];	822	push @{ $COMMAND{$name} }, [$caller, $cb];
595	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
596	}	823	}
		824
		825	=item cf::register_extcmd $name => \&callback($pl,$packet);
		826
		827	Register a callbackf ro execution when the client sends an extcmd packet.
		828
		829	If the callback returns something, it is sent back as if reply was being
		830	called.
		831
		832	=cut
597		833
598	sub register_extcmd {	834	sub register_extcmd {
599	my ($name, $cb) = @_;	835	my ($name, $cb) = @_;
600		836
601	my $caller = caller;	837	$EXTCMD{$name} = $cb;
602	#warn "registering extcmd '$name' to '$caller'";
603
604	$extcmd{$name} = [$cb, $caller];
605	}	838	}
606		839
607	sub register {	840	cf::player->attach (
608	my ($base, $pkg) = @_;	841	on_command => sub {
		842	my ($pl, $name, $params) = @_;
609		843
610	#TODO	844	my $cb = $COMMAND{$name}
611	}	845	or return;
		846
		847	for my $cmd (@$cb) {
		848	$cmd->[1]->($pl->ob, $params);
		849	}
		850
		851	cf::override;
		852	},
		853	on_extcmd => sub {
		854	my ($pl, $buf) = @_;
		855
		856	my $msg = eval { from_json $buf };
		857
		858	if (ref $msg) {
		859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		860	if (my %reply = $cb->($pl, $msg)) {
		861	$pl->ext_reply ($msg->{msgid}, %reply);
		862	}
		863	}
		864	} else {
		865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		866	}
		867
		868	cf::override;
		869	},
		870	);
612		871
613	sub load_extension {	872	sub load_extension {
614	my ($path) = @_;	873	my ($path) = @_;
615		874
616	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
617	my $base = $1;	876	my $base = $1;
618	my $pkg = $1;	877	my $pkg = $1;
619	$pkg =~ s/[^[:word:]]/_/g;	878	$pkg =~ s/[^[:word:]]/_/g;
620	$pkg = "ext::$pkg";	879	$pkg = "ext::$pkg";
621		880
622	warn "loading '$path' into '$pkg'\n";	881	warn "... loading '$path' into '$pkg'\n";
623		882
624	open my $fh, "<:utf8", $path	883	open my $fh, "<:utf8", $path
625	or die "$path: $!";	884	or die "$path: $!";
626		885
627	my $source =	886	my $source =
628	"package $pkg; use strict; use utf8;\n"	887	"package $pkg; use strict; use utf8;\n"
629	. "#line 1 \"$path\"\n{\n"	888	. "#line 1 \"$path\"\n{\n"
630	. (do { local $/; <$fh> })	889	. (do { local $/; <$fh> })
631	. "\n};\n1";	890	. "\n};\n1";
632		891
633	eval $source	892	unless (eval $source) {
634	or die "$path: $@";	893	my $msg = $@ ? "$path: $@\n"
635		894	: "extension disabled.\n";
636	push @exts, $pkg;	895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
637	$ext_pkg{$base} = $pkg;	896	warn $@;
638		897	warn "mandatory extension failed to load, exiting.\n";
639	# no strict 'refs';	898	exit 1;
640	# @{"$pkg\::ISA"} = ext::;	899	}
641		900	die $@;
642	register $base, $pkg;
643	}
644
645	sub unload_extension {
646	my ($pkg) = @_;
647
648	warn "removing extension $pkg\n";
649
650	# remove hooks
651	#TODO
652	# for my $idx (0 .. $#PLUGIN_EVENT) {
653	# delete $hook[$idx]{$pkg};
654	# }	901	}
655		902
656	# remove commands	903	push @EXTS, $pkg;
657	for my $name (keys %command) {
658	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
659
660	if (@cb) {
661	$command{$name} = \@cb;
662	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
663	} else {
664	delete $command{$name};
665	delete $COMMAND{"$name\000"};
666	}
667	}
668
669	# remove extcmds
670	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
671	delete $extcmd{$name};
672	}
673
674	if (my $cb = $pkg->can ("unload")) {
675	eval {
676	$cb->($pkg);
677	1
678	} or warn "$pkg unloaded, but with errors: $@";
679	}
680
681	Symbol::delete_package $pkg;
682	}	904	}
683		905
684	sub load_extensions {	906	sub load_extensions {
685	my $LIBDIR = maps_directory "perl";
686
687	for my $ext (<$LIBDIR/*.ext>) {	907	for my $ext (<$LIBDIR/*.ext>) {
688	next unless -r $ext;	908	next unless -r $ext;
689	eval {	909	eval {
690	load_extension $ext;	910	load_extension $ext;
691	1	911	1
692	} or warn "$ext not loaded: $@";	912	} or warn "$ext not loaded: $@";
693	}	913	}
694	}	914	}
695		915
696	#############################################################################	916	#############################################################################
697	# extcmd framework, basically convert ext <msg>
698	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
699		917
700	attach_to_players	918	=head2 CORE EXTENSIONS
701	on_extcmd => sub {
702	my ($pl, $buf) = @_;
703		919
704	my $msg = eval { from_json $buf };	920	Functions and methods that extend core crossfire objects.
705		921
706	if (ref $msg) {	922	=cut
707	if (my $cb = $extcmd{$msg->{msgtype}}) {	923
708	if (my %reply = $cb->[0]->($pl, $msg)) {	924	package cf::player;
709	$pl->ext_reply ($msg->{msgid}, %reply);	925
710	}	926	use Coro::AIO;
		927
		928	=head3 cf::player
		929
		930	=over 4
		931
		932	=item cf::player::find $login
		933
		934	Returns the given player object, loading it if necessary (might block).
		935
		936	=cut
		937
		938	sub playerdir($) {
		939	cf::localdir
		940	. "/"
		941	. cf::playerdir
		942	. "/"
		943	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		944	}
		945
		946	sub path($) {
		947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		948
		949	(playerdir $login) . "/$login.pl"
		950	}
		951
		952	sub find_active($) {
		953	$cf::PLAYER{$_[0]}
		954	and $cf::PLAYER{$_[0]}->active
		955	and $cf::PLAYER{$_[0]}
		956	}
		957
		958	sub exists($) {
		959	my ($login) = @_;
		960
		961	$cf::PLAYER{$login}
		962	or cf::sync_job { !aio_stat $login }
		963	}
		964
		965	sub find($) {
		966	return $cf::PLAYER{$_[0]} || do {
		967	my $login = $_[0];
		968
		969	my $guard = cf::lock_acquire "user_find:$login";
		970
		971	$cf::PLAYER{$_[0]} || do {
		972	my $pl = load_pl path $login
		973	or return;
		974	$cf::PLAYER{$login} = $pl
711	}	975	}
712	} else {
713	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
714	}
715
716	cf::override;
717	},	976	}
718	;	977	}
719		978
720	#############################################################################	979	sub save($) {
721	# load/save/clean perl data associated with a map	980	my ($pl) = @_;
722		981
723	*cf::mapsupport::on_clean = sub {	982	return if $pl->{deny_save};
		983
		984	my $path = path $pl;
		985	my $guard = cf::lock_acquire "user_save:$path";
		986
		987	return if $pl->{deny_save};
		988
		989	aio_mkdir playerdir $pl, 0770;
		990	$pl->{last_save} = $cf::RUNTIME;
		991
		992	$pl->save_pl ($path);
		993	Coro::cede;
		994	}
		995
		996	sub new($) {
		997	my ($login) = @_;
		998
		999	my $self = create;
		1000
		1001	$self->ob->name ($login);
		1002	$self->{deny_save} = 1;
		1003
		1004	$cf::PLAYER{$login} = $self;
		1005
		1006	$self
		1007	}
		1008
		1009	=item $pl->quit_character
		1010
		1011	Nukes the player without looking back. If logged in, the connection will
		1012	be destroyed. May block for a long time.
		1013
		1014	=cut
		1015
		1016	sub quit_character {
		1017	my ($pl) = @_;
		1018
		1019	$pl->{deny_save} = 1;
		1020	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1021
		1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1023	$pl->deactivate;
		1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1025	$pl->ns->destroy if $pl->ns;
		1026
		1027	my $path = playerdir $pl;
		1028	my $temp = "$path~$cf::RUNTIME~deleting~";
		1029	aio_rename $path, $temp;
		1030	delete $cf::PLAYER{$pl->ob->name};
		1031	$pl->destroy;
		1032	IO::AIO::aio_rmtree $temp;
		1033	}
		1034
		1035	=item cf::player::list_logins
		1036
		1037	Returns am arrayref of all valid playernames in the system, can take a
		1038	while and may block, so not sync_job-capable, ever.
		1039
		1040	=cut
		1041
		1042	sub list_logins {
		1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1044	or return [];
		1045
		1046	my @logins;
		1047
		1048	for my $login (@$dirs) {
		1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1050	aio_read $fh, 0, 512, my $buf, 0 or next;
		1051	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1052
		1053	utf8::decode $login;
		1054	push @logins, $login;
		1055	}
		1056
		1057	\@logins
		1058	}
		1059
		1060	=item $player->maps
		1061
		1062	Returns an arrayref of map paths that are private for this
		1063	player. May block.
		1064
		1065	=cut
		1066
		1067	sub maps($) {
		1068	my ($pl) = @_;
		1069
		1070	my $files = aio_readdir playerdir $pl
		1071	or return;
		1072
		1073	my @paths;
		1074
		1075	for (@$files) {
		1076	utf8::decode $_;
		1077	next if /\.(?:pl|pst)$/;
		1078	next unless /^$PATH_SEP/o;
		1079
		1080	s/\.map$//;
		1081	push @paths, "~" . $pl->ob->name . "/" . $_;
		1082	}
		1083
		1084	\@paths
		1085	}
		1086
		1087	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1088
		1089	Sends an ext reply to the player.
		1090
		1091	=cut
		1092
		1093	sub ext_reply($$$%) {
		1094	my ($self, $id, %msg) = @_;
		1095
		1096	$msg{msgid} = $id;
		1097
		1098	$self->send ("ext " . cf::to_json \%msg);
		1099	}
		1100
		1101	package cf;
		1102
		1103	=back
		1104
		1105
		1106	=head3 cf::map
		1107
		1108	=over 4
		1109
		1110	=cut
		1111
		1112	package cf::map;
		1113
		1114	use Fcntl;
		1115	use Coro::AIO;
		1116
		1117	use overload
		1118	'""' => \&as_string;
		1119
		1120	our $MAX_RESET = 3600;
		1121	our $DEFAULT_RESET = 3000;
		1122
		1123	sub generate_random_map {
		1124	my ($self, $rmp) = @_;
		1125
		1126	# mit "rum" bekleckern, nicht
		1127	$self->_create_random_map (
		1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1131	$rmp->{exit_on_final_map},
		1132	$rmp->{xsize}, $rmp->{ysize},
		1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1138	(cf::region::find $rmp->{region}), $rmp->{custom}
		1139	)
		1140	}
		1141
		1142	sub register {
		1143	my (undef, $regex) = @_;
		1144	my $pkg = caller;
		1145
		1146	no strict;
		1147	push @{"$pkg\::ISA"}, __PACKAGE__;
		1148
		1149	$EXT_MAP{$pkg} = qr<$regex>;
		1150	}
		1151
		1152	# also paths starting with '/'
		1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1154
		1155	sub thawer_merge {
		1156	# we have to keep some variables in memory intact
		1157	local $_[0]{path};
		1158	local $_[0]{deny_save};
		1159	local $_[0]{deny_reset};
		1160
		1161	$_[0]->SUPER::thawer_merge ($_[1]);
		1162	}
		1163
		1164	sub normalise {
		1165	my ($path, $base) = @_;
		1166
		1167	# map plan:
		1168	#
		1169	# /! non-realised random map exit (special hack!)
		1170	# {... are special paths that are not being touched
		1171	# ?xxx/... are special absolute paths
		1172	# ?random/... random maps
		1173	# /... normal maps
		1174	# ~user/... per-player map of a specific user
		1175
		1176	$path =~ s/$PATH_SEP/\//go;
		1177
		1178	# treat it as relative path if it starts with
		1179	# something that looks reasonable
		1180	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1181	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1182
		1183	$base =~ s{[^/]+/?$}{};
		1184	$path = "$base/$path";
		1185	}
		1186
		1187	for ($path) {
		1188	redo if s{//}{/};
		1189	redo if s{/\.?/}{/};
		1190	redo if s{/[^/]+/\.\./}{/};
		1191	}
		1192
		1193	$path
		1194	}
		1195
		1196	sub new_from_path {
		1197	my (undef, $path, $base) = @_;
		1198
		1199	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1200
		1201	$path = normalise $path, $base;
		1202
		1203	for my $pkg (keys %EXT_MAP) {
		1204	if ($path =~ $EXT_MAP{$pkg}) {
		1205	my $self = bless cf::map::new, $pkg;
		1206	$self->{path} = $path; $self->path ($path);
		1207	$self->init; # pass $1 etc.
		1208	return $self;
		1209	}
		1210	}
		1211
		1212	Carp::carp "unable to resolve path '$path'.";
		1213	()
		1214	}
		1215
		1216	sub init {
		1217	my ($self) = @_;
		1218
		1219	$self
		1220	}
		1221
		1222	sub as_string {
		1223	my ($self) = @_;
		1224
		1225	"$self->{path}"
		1226	}
		1227
		1228	# the displayed name, this is a one way mapping
		1229	sub visible_name {
		1230	&as_string
		1231	}
		1232
		1233	# the original (read-only) location
		1234	sub load_path {
		1235	my ($self) = @_;
		1236
		1237	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1238	}
		1239
		1240	# the temporary/swap location
		1241	sub save_path {
		1242	my ($self) = @_;
		1243
		1244	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1245	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1246	}
		1247
		1248	# the unique path, undef == no special unique path
		1249	sub uniq_path {
		1250	my ($self) = @_;
		1251
		1252	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1253	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1254	}
		1255
		1256	# and all this just because we cannot iterate over
		1257	# all maps in C++...
		1258	sub change_all_map_light {
		1259	my ($change) = @_;
		1260
		1261	$_->change_map_light ($change)
		1262	for grep $_->outdoor, values %cf::MAP;
		1263	}
		1264
		1265	sub unlink_save {
		1266	my ($self) = @_;
		1267
		1268	utf8::encode (my $save = $self->save_path);
		1269	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1270	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1271	}
		1272
		1273	sub load_header_from($) {
		1274	my ($self, $path) = @_;
		1275
		1276	utf8::encode $path;
		1277	aio_open $path, O_RDONLY, 0
		1278	or return;
		1279
		1280	$self->_load_header ($path)
		1281	or return;
		1282
		1283	$self->{load_path} = $path;
		1284
		1285	1
		1286	}
		1287
		1288	sub load_orig {
		1289	my ($self) = @_;
		1290
		1291	$self->load_header_from ($self->load_path)
		1292	}
		1293
		1294	sub load_temp {
		1295	my ($self) = @_;
		1296
		1297	$self->load_header_from ($self->save_path)
		1298	}
		1299
		1300	sub load_header {
		1301	my ($self) = @_;
		1302
		1303	if ($self->load_temp) {
		1304	$self->last_access ((delete $self->{last_access})
		1305	|| $cf::RUNTIME); #d#
		1306	# safety
		1307	$self->{instantiate_time} = $cf::RUNTIME
		1308	if $self->{instantiate_time} > $cf::RUNTIME;
		1309	} else {
		1310	$self->load_orig
		1311	or return;
		1312
		1313	$self->{load_original} = 1;
		1314	$self->{instantiate_time} = $cf::RUNTIME;
		1315	$self->last_access ($cf::RUNTIME);
		1316	$self->instantiate;
		1317	}
		1318
		1319	1
		1320	}
		1321
		1322	sub find;
		1323	sub find {
		1324	my ($path, $origin) = @_;
		1325
		1326	$path = normalise $path, $origin && $origin->path;
		1327
		1328	cf::lock_wait "map_find:$path";
		1329
		1330	$cf::MAP{$path} || do {
		1331	my $guard = cf::lock_acquire "map_find:$path";
		1332	my $map = new_from_path cf::map $path
		1333	or return;
		1334
		1335	$map->{last_save} = $cf::RUNTIME;
		1336
		1337	$map->load_header
		1338	or return;
		1339
		1340	if ($map->should_reset) {
		1341	$cf::WAIT_FOR_TICK->wait;
		1342	$map->reset;
		1343	undef $guard;
		1344	$map = find $path
		1345	or return;
		1346	}
		1347
		1348	$cf::MAP{$path} = $map
		1349	}
		1350	}
		1351
		1352	sub load {
		1353	my ($self) = @_;
		1354
		1355	my $path = $self->{path};
		1356	my $guard = cf::lock_acquire "map_load:$path";
		1357
		1358	return if $self->in_memory != cf::MAP_SWAPPED;
		1359
		1360	$self->in_memory (cf::MAP_LOADING);
		1361
		1362	$self->alloc;
		1363	$self->_load_objects ($self->{load_path}, 1)
		1364	or return;
		1365
		1366	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1367	if delete $self->{load_original};
		1368
		1369	if (my $uniq = $self->uniq_path) {
		1370	utf8::encode $uniq;
		1371	if (aio_open $uniq, O_RDONLY, 0) {
		1372	$self->clear_unique_items;
		1373	$self->_load_objects ($uniq, 0);
		1374	}
		1375	}
		1376
		1377	Coro::cede;
		1378
		1379	# now do the right thing for maps
		1380	$self->link_multipart_objects;
		1381
		1382	unless ($self->{deny_activate}) {
		1383	$self->decay_objects;
		1384	$self->fix_auto_apply;
		1385	$self->update_buttons;
		1386	Coro::cede;
		1387	$self->set_darkness_map;
		1388	$self->difficulty ($self->estimate_difficulty)
		1389	unless $self->difficulty;
		1390	Coro::cede;
		1391	$self->activate;
		1392	}
		1393
		1394	$self->in_memory (cf::MAP_IN_MEMORY);
		1395	}
		1396
		1397	sub customise_for {
		1398	my ($self, $ob) = @_;
		1399
		1400	return find "~" . $ob->name . "/" . $self->{path}
		1401	if $self->per_player;
		1402
		1403	$self
		1404	}
		1405
		1406	# find and load all maps in the 3x3 area around a map
		1407	sub load_diag {
724	my ($map) = @_;	1408	my ($map) = @_;
725		1409
726	my $path = $map->tmpname;	1410	my @diag; # diagonal neighbours
727	defined $path or return;
728		1411
729	unlink "$path.pst";	1412	for (0 .. 3) {
		1413	my $neigh = $map->tile_path ($_)
		1414	or next;
		1415	$neigh = find $neigh, $map
		1416	or next;
		1417	$neigh->load;
		1418
		1419	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1420	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1421	}
		1422
		1423	for (@diag) {
		1424	my $neigh = find @$_
		1425	or next;
		1426	$neigh->load;
		1427	}
		1428	}
		1429
		1430	sub find_sync {
		1431	my ($path, $origin) = @_;
		1432
		1433	cf::sync_job { find $path, $origin }
		1434	}
		1435
		1436	sub do_load_sync {
		1437	my ($map) = @_;
		1438
		1439	cf::sync_job { $map->load };
		1440	}
		1441
		1442	our %MAP_PREFETCH;
		1443	our $MAP_PREFETCHER = Coro::async {
		1444	while () {
		1445	for my $path (keys %MAP_PREFETCH) {
		1446	my $map = find $path
		1447	or next;
		1448	$map->load;
		1449
		1450	delete $MAP_PREFETCH{$path};
		1451	}
		1452	Coro::schedule;
		1453	}
730	};	1454	};
731		1455
732	attach_to_maps prio => -10000, package => cf::mapsupport::;	1456	sub find_async {
		1457	my ($path, $origin) = @_;
733		1458
734	#############################################################################	1459	$path = normalise $path, $origin && $origin->{path};
735	# load/save perl data associated with player->ob objects
736		1460
737	sub all_objects(@) {	1461	if (my $map = $cf::MAP{$path}) {
738	@_, map all_objects ($_->inv), @_	1462	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
739	}
740
741	# TODO: compatibility cruft, remove when no longer needed
742	attach_to_players
743	on_load => sub {
744	my ($pl, $path) = @_;
745
746	for my $o (all_objects $pl->ob) {
747	if (my $value = $o->get_ob_key_value ("_perl_data")) {
748	$o->set_ob_key_value ("_perl_data");
749
750	%$o = %{ Storable::thaw pack "H*", $value };
751	}
752	}
753	},	1463	}
754	;
755		1464
756	#############################################################################	1465	$MAP_PREFETCH{$path} = 0;
		1466	$MAP_PREFETCHER->ready;
757		1467
758	=head2 CORE EXTENSIONS	1468	()
		1469	}
759		1470
760	Functions and methods that extend core crossfire objects.	1471	sub save {
		1472	my ($self) = @_;
		1473
		1474	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1475
		1476	$self->{last_save} = $cf::RUNTIME;
		1477
		1478	return unless $self->dirty;
		1479
		1480	my $save = $self->save_path; utf8::encode $save;
		1481	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1482
		1483	$self->{load_path} = $save;
		1484
		1485	return if $self->{deny_save};
		1486
		1487	local $self->{last_access} = $self->last_access;#d#
		1488
		1489	cf::async {
		1490	$_->contr->save for $self->players;
		1491	};
		1492
		1493	if ($uniq) {
		1494	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1495	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1496	} else {
		1497	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		1498	}
		1499	}
		1500
		1501	sub swap_out {
		1502	my ($self) = @_;
		1503
		1504	# save first because save cedes
		1505	$self->save;
		1506
		1507	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1508
		1509	return if $self->players;
		1510	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1511	return if $self->{deny_save};
		1512
		1513	$self->clear;
		1514	$self->in_memory (cf::MAP_SWAPPED);
		1515	}
		1516
		1517	sub reset_at {
		1518	my ($self) = @_;
		1519
		1520	# TODO: safety, remove and allow resettable per-player maps
		1521	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1522	return 1e99 if $self->{deny_reset};
		1523
		1524	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1525	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1526
		1527	$time + $to
		1528	}
		1529
		1530	sub should_reset {
		1531	my ($self) = @_;
		1532
		1533	$self->reset_at <= $cf::RUNTIME
		1534	}
		1535
		1536	sub rename {
		1537	my ($self, $new_path) = @_;
		1538
		1539	normalise $new_path;
		1540
		1541	$self->unlink_save;
		1542
		1543	delete $cf::MAP{$self->path};
		1544	$self->{path} = $new_path; $self->path ($self->{path});
		1545	$cf::MAP{$self->path} = $self;
		1546
		1547	$self->save;
		1548	}
		1549
		1550	sub reset {
		1551	my ($self) = @_;
		1552
		1553	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1554
		1555	return if $self->players;
		1556	return if $self->isa ("ext::map_per_player");#d#
		1557
		1558	warn "resetting map ", $self->path;#d#
		1559
		1560	delete $cf::MAP{$self->path};
		1561
		1562	$self->in_memory (cf::MAP_SWAPPED);
		1563	$self->clear;
		1564
		1565	$_->clear_links_to ($self) for values %cf::MAP;
		1566
		1567	$self->unlink_save;
		1568	$self->destroy;
		1569	}
		1570
		1571	my $nuke_counter = "aaaa";
		1572
		1573	sub nuke {
		1574	my ($self) = @_;
		1575
		1576	$self->{deny_save} = 1;
		1577	$self->reset_timeout (1);
		1578	$self->rename ("{nuke}/" . ($nuke_counter++));
		1579	$self->reset; # polite request, might not happen
		1580	}
		1581
		1582	=item cf::map::unique_maps
		1583
		1584	Returns an arrayref of paths of all shared maps that have
		1585	instantiated unique items. May block.
		1586
		1587	=cut
		1588
		1589	sub unique_maps() {
		1590	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1591	or return;
		1592
		1593	my @paths;
		1594
		1595	for (@$files) {
		1596	utf8::decode $_;
		1597	next if /\.pst$/;
		1598	next unless /^$PATH_SEP/o;
		1599
		1600	s/\.map$//;
		1601	push @paths, $_;
		1602	}
		1603
		1604	\@paths
		1605	}
		1606
		1607	package cf;
		1608
		1609	=back
		1610
		1611	=head3 cf::object
		1612
		1613	=cut
		1614
		1615	package cf::object;
761		1616
762	=over 4	1617	=over 4
763		1618
764	=item cf::player::exists $login	1619	=item $ob->inv_recursive
765		1620
766	Returns true when the given account exists.	1621	Returns the inventory of the object _and_ their inventories, recursively.
767		1622
768	=cut	1623	=cut
769		1624
770	sub cf::player::exists($) {	1625	sub inv_recursive_;
771	cf::player::find $_[0]	1626	sub inv_recursive_ {
772	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1627	map { $_, inv_recursive_ $_->inv } @_
773	}	1628	}
774		1629
		1630	sub inv_recursive {
		1631	inv_recursive_ inv $_[0]
		1632	}
		1633
		1634	package cf;
		1635
		1636	=back
		1637
		1638	=head3 cf::object::player
		1639
		1640	=over 4
		1641
775	=item $player->reply ($npc, $msg[, $flags])	1642	=item $player_object->reply ($npc, $msg[, $flags])
776		1643
777	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1644	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
778	can be C<undef>. Does the right thing when the player is currently in a	1645	can be C<undef>. Does the right thing when the player is currently in a
779	dialogue with the given NPC character.	1646	dialogue with the given NPC character.
780		1647
781	=cut	1648	=cut
782		1649
783	# rough implementation of a future "reply" method that works	1650	# rough implementation of a future "reply" method that works
784	# with dialog boxes.	1651	# with dialog boxes.
		1652	#TODO: the first argument must go, split into a $npc->reply_to ( method
785	sub cf::object::player::reply($$$;$) {	1653	sub cf::object::player::reply($$$;$) {
786	my ($self, $npc, $msg, $flags) = @_;	1654	my ($self, $npc, $msg, $flags) = @_;
787		1655
788	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1656	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
789		1657
…		…
793	$msg = $npc->name . " says: $msg" if $npc;	1661	$msg = $npc->name . " says: $msg" if $npc;
794	$self->message ($msg, $flags);	1662	$self->message ($msg, $flags);
795	}	1663	}
796	}	1664	}
797		1665
798	=item $player->ext_reply ($msgid, $msgtype, %msg)	1666	=item $player_object->may ("access")
799		1667
800	Sends an ext reply to the player.	1668	Returns wether the given player is authorized to access resource "access"
		1669	(e.g. "command_wizcast").
801		1670
802	=cut	1671	=cut
803		1672
804	sub cf::player::ext_reply($$$%) {	1673	sub cf::object::player::may {
		1674	my ($self, $access) = @_;
		1675
		1676	$self->flag (cf::FLAG_WIZ) ||
		1677	(ref $cf::CFG{"may_$access"}
		1678	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1679	: $cf::CFG{"may_$access"})
		1680	}
		1681
		1682	=item $player_object->enter_link
		1683
		1684	Freezes the player and moves him/her to a special map (C<{link}>).
		1685
		1686	The player should be reasonably safe there for short amounts of time. You
		1687	I<MUST> call C<leave_link> as soon as possible, though.
		1688
		1689	Will never block.
		1690
		1691	=item $player_object->leave_link ($map, $x, $y)
		1692
		1693	Moves the player out of the special C<{link}> map onto the specified
		1694	map. If the map is not valid (or omitted), the player will be moved back
		1695	to the location he/she was before the call to C<enter_link>, or, if that
		1696	fails, to the emergency map position.
		1697
		1698	Might block.
		1699
		1700	=cut
		1701
		1702	sub link_map {
		1703	unless ($LINK_MAP) {
		1704	$LINK_MAP = cf::map::find "{link}"
		1705	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1706	$LINK_MAP->load;
		1707	}
		1708
		1709	$LINK_MAP
		1710	}
		1711
		1712	sub cf::object::player::enter_link {
		1713	my ($self) = @_;
		1714
		1715	$self->deactivate_recursive;
		1716
		1717	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1718
		1719	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1720	if $self->map;
		1721
		1722	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1723	}
		1724
		1725	sub cf::object::player::leave_link {
		1726	my ($self, $map, $x, $y) = @_;
		1727
		1728	my $link_pos = delete $self->{_link_pos};
		1729
		1730	unless ($map) {
		1731	# restore original map position
		1732	($map, $x, $y) = @{ $link_pos || [] };
		1733	$map = cf::map::find $map;
		1734
		1735	unless ($map) {
		1736	($map, $x, $y) = @$EMERGENCY_POSITION;
		1737	$map = cf::map::find $map
		1738	or die "FATAL: cannot load emergency map\n";
		1739	}
		1740	}
		1741
		1742	($x, $y) = (-1, -1)
		1743	unless (defined $x) && (defined $y);
		1744
		1745	# use -1 or undef as default coordinates, not 0, 0
		1746	($x, $y) = ($map->enter_x, $map->enter_y)
		1747	if $x <=0 && $y <= 0;
		1748
		1749	$map->load;
		1750	$map->load_diag;
		1751
		1752	return unless $self->contr->active;
		1753	$self->activate_recursive;
		1754	$self->enter_map ($map, $x, $y);
		1755	}
		1756
		1757	cf::player->attach (
		1758	on_logout => sub {
		1759	my ($pl) = @_;
		1760
		1761	# abort map switching before logout
		1762	if ($pl->ob->{_link_pos}) {
		1763	cf::sync_job {
		1764	$pl->ob->leave_link
		1765	};
		1766	}
		1767	},
		1768	on_login => sub {
		1769	my ($pl) = @_;
		1770
		1771	# try to abort aborted map switching on player login :)
		1772	# should happen only on crashes
		1773	if ($pl->ob->{_link_pos}) {
		1774	$pl->ob->enter_link;
		1775	(async {
		1776	# we need this sleep as the login has a concurrent enter_exit running
		1777	# and this sleep increases chances of the player not ending up in scorn
		1778	$pl->ob->reply (undef,
		1779	"There was an internal problem at your last logout, "
		1780	. "the server will try to bring you to your intended destination in a second.",
		1781	cf::NDI_RED);
		1782	Coro::Timer::sleep 1;
		1783	$pl->ob->leave_link;
		1784	})->prio (2);
		1785	}
		1786	},
		1787	);
		1788
		1789	=item $player_object->goto ($path, $x, $y)
		1790
		1791	=cut
		1792
		1793	sub cf::object::player::goto {
		1794	my ($self, $path, $x, $y) = @_;
		1795
		1796	$self->enter_link;
		1797
		1798	(async {
		1799	my $map = cf::map::find $path;
		1800	$map = $map->customise_for ($self) if $map;
		1801
		1802	# warn "entering ", $map->path, " at ($x, $y)\n"
		1803	# if $map;
		1804
		1805	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1806
		1807	$self->leave_link ($map, $x, $y);
		1808	})->prio (1);
		1809	}
		1810
		1811	=item $player_object->enter_exit ($exit_object)
		1812
		1813	=cut
		1814
		1815	sub parse_random_map_params {
		1816	my ($spec) = @_;
		1817
		1818	my $rmp = { # defaults
		1819	xsize => 10,
		1820	ysize => 10,
		1821	};
		1822
		1823	for (split /\n/, $spec) {
		1824	my ($k, $v) = split /\s+/, $_, 2;
		1825
		1826	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1827	}
		1828
		1829	$rmp
		1830	}
		1831
		1832	sub prepare_random_map {
		1833	my ($exit) = @_;
		1834
		1835	# all this does is basically replace the /! path by
		1836	# a new random map path (?random/...) with a seed
		1837	# that depends on the exit object
		1838
		1839	my $rmp = parse_random_map_params $exit->msg;
		1840
		1841	if ($exit->map) {
		1842	$rmp->{region} = $exit->map->region_name;
		1843	$rmp->{origin_map} = $exit->map->path;
		1844	$rmp->{origin_x} = $exit->x;
		1845	$rmp->{origin_y} = $exit->y;
		1846	}
		1847
		1848	$rmp->{random_seed} ||= $exit->random_seed;
		1849
		1850	my $data = cf::to_json $rmp;
		1851	my $md5 = Digest::MD5::md5_hex $data;
		1852
		1853	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {
		1854	aio_write $fh, 0, (length $data), $data, 0;
		1855
		1856	$exit->slaying ("?random/$md5");
		1857	$exit->msg (undef);
		1858	}
		1859	}
		1860
		1861	sub cf::object::player::enter_exit {
805	my ($self, $id, %msg) = @_;	1862	my ($self, $exit) = @_;
806		1863
807	$msg{msgid} = $id;	1864	return unless $self->type == cf::PLAYER;
808		1865
809	$self->send ("ext " . to_json \%msg);	1866	$self->enter_link;
		1867
		1868	(async {
		1869	$self->deactivate_recursive; # just to be sure
		1870	unless (eval {
		1871	prepare_random_map $exit
		1872	if $exit->slaying eq "/!";
		1873
		1874	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1875	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1876
		1877	1;
		1878	}) {
		1879	$self->message ("Something went wrong deep within the crossfire server. "
		1880	. "I'll try to bring you back to the map you were before. "
		1881	. "Please report this to the dungeon master!",
		1882	cf::NDI_UNIQUE | cf::NDI_RED);
		1883
		1884	warn "ERROR in enter_exit: $@";
		1885	$self->leave_link;
		1886	}
		1887	})->prio (1);
810	}	1888	}
		1889
		1890	=head3 cf::client
		1891
		1892	=over 4
		1893
		1894	=item $client->send_drawinfo ($text, $flags)
		1895
		1896	Sends a drawinfo packet to the client. Circumvents output buffering so
		1897	should not be used under normal circumstances.
		1898
		1899	=cut
		1900
		1901	sub cf::client::send_drawinfo {
		1902	my ($self, $text, $flags) = @_;
		1903
		1904	utf8::encode $text;
		1905	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1906	}
		1907
		1908
		1909	=item $success = $client->query ($flags, "text", \&cb)
		1910
		1911	Queues a query to the client, calling the given callback with
		1912	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1913	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1914
		1915	Queries can fail, so check the return code. Or don't, as queries will become
		1916	reliable at some point in the future.
		1917
		1918	=cut
		1919
		1920	sub cf::client::query {
		1921	my ($self, $flags, $text, $cb) = @_;
		1922
		1923	return unless $self->state == ST_PLAYING
		1924	|| $self->state == ST_SETUP
		1925	|| $self->state == ST_CUSTOM;
		1926
		1927	$self->state (ST_CUSTOM);
		1928
		1929	utf8::encode $text;
		1930	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1931
		1932	$self->send_packet ($self->{query_queue}[0][0])
		1933	if @{ $self->{query_queue} } == 1;
		1934	}
		1935
		1936	cf::client->attach (
		1937	on_reply => sub {
		1938	my ($ns, $msg) = @_;
		1939
		1940	# this weird shuffling is so that direct followup queries
		1941	# get handled first
		1942	my $queue = delete $ns->{query_queue}
		1943	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1944
		1945	(shift @$queue)->[1]->($msg);
		1946
		1947	push @{ $ns->{query_queue} }, @$queue;
		1948
		1949	if (@{ $ns->{query_queue} } == @$queue) {
		1950	if (@$queue) {
		1951	$ns->send_packet ($ns->{query_queue}[0][0]);
		1952	} else {
		1953	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1954	}
		1955	}
		1956	},
		1957	);
		1958
		1959	=item $client->async (\&cb)
		1960
		1961	Create a new coroutine, running the specified callback. The coroutine will
		1962	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1963	or loss of connection).
		1964
		1965	=cut
		1966
		1967	sub cf::client::async {
		1968	my ($self, $cb) = @_;
		1969
		1970	my $coro = &Coro::async ($cb);
		1971
		1972	$coro->on_destroy (sub {
		1973	delete $self->{_coro}{$coro+0};
		1974	});
		1975
		1976	$self->{_coro}{$coro+0} = $coro;
		1977
		1978	$coro
		1979	}
		1980
		1981	cf::client->attach (
		1982	on_destroy => sub {
		1983	my ($ns) = @_;
		1984
		1985	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1986	},
		1987	);
811		1988
812	=back	1989	=back
813		1990
814	=cut
815
816	#############################################################################
817		1991
818	=head2 SAFE SCRIPTING	1992	=head2 SAFE SCRIPTING
819		1993
820	Functions that provide a safe environment to compile and execute	1994	Functions that provide a safe environment to compile and execute
821	snippets of perl code without them endangering the safety of the server	1995	snippets of perl code without them endangering the safety of the server
822	itself. Looping constructs, I/O operators and other built-in functionality	1996	itself. Looping constructs, I/O operators and other built-in functionality
823	is not available in the safe scripting environment, and the number of	1997	is not available in the safe scripting environment, and the number of
824	functions and methods that cna be called is greatly reduced.	1998	functions and methods that can be called is greatly reduced.
825		1999
826	=cut	2000	=cut
827		2001
828	our $safe = new Safe "safe";	2002	our $safe = new Safe "safe";
829	our $safe_hole = new Safe::Hole;	2003	our $safe_hole = new Safe::Hole;
…		…
836		2010
837	=pod	2011	=pod
838		2012
839	The following fucntions and emthods are available within a safe environment:	2013	The following fucntions and emthods are available within a safe environment:
840		2014
841	cf::object contr pay_amount pay_player	2015	cf::object contr pay_amount pay_player map
842	cf::object::player player	2016	cf::object::player player
843	cf::player peaceful	2017	cf::player peaceful
		2018	cf::map trigger
844		2019
845	=cut	2020	=cut
846		2021
847	for (	2022	for (
848	["cf::object" => qw(contr pay_amount pay_player)],	2023	["cf::object" => qw(contr pay_amount pay_player map)],
849	["cf::object::player" => qw(player)],	2024	["cf::object::player" => qw(player)],
850	["cf::player" => qw(peaceful)],	2025	["cf::player" => qw(peaceful)],
		2026	["cf::map" => qw(trigger)],
851	) {	2027	) {
852	no strict 'refs';	2028	no strict 'refs';
853	my ($pkg, @funs) = @$_;	2029	my ($pkg, @funs) = @$_;
854	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2030	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
855	for @funs;	2031	for @funs;
…		…
965		2141
966	Immediately write the database to disk I<if it is dirty>.	2142	Immediately write the database to disk I<if it is dirty>.
967		2143
968	=cut	2144	=cut
969		2145
		2146	our $DB;
		2147
970	{	2148	{
971	my $db;
972	my $path = cf::localdir . "/database.pst";	2149	my $path = cf::localdir . "/database.pst";
973		2150
974	sub db_load() {	2151	sub db_load() {
975	warn "loading database $path\n";#d# remove later
976	$db = stat $path ? Storable::retrieve $path : { };	2152	$DB = stat $path ? Storable::retrieve $path : { };
977	}	2153	}
978		2154
979	my $pid;	2155	my $pid;
980		2156
981	sub db_save() {	2157	sub db_save() {
982	warn "saving database $path\n";#d# remove later
983	waitpid $pid, 0 if $pid;	2158	waitpid $pid, 0 if $pid;
984	if (0 == ($pid = fork)) {	2159	if (0 == ($pid = fork)) {
985	$db->{_meta}{version} = 1;	2160	$DB->{_meta}{version} = 1;
986	Storable::nstore $db, "$path~";	2161	Storable::nstore $DB, "$path~";
987	rename "$path~", $path;	2162	rename "$path~", $path;
988	cf::_exit 0 if defined $pid;	2163	cf::_exit 0 if defined $pid;
989	}	2164	}
990	}	2165	}
991		2166
…		…
994	sub db_sync() {	2169	sub db_sync() {
995	db_save if $dirty;	2170	db_save if $dirty;
996	undef $dirty;	2171	undef $dirty;
997	}	2172	}
998		2173
999	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	2174	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1000	db_sync;	2175	db_sync;
1001	});	2176	});
1002		2177
1003	sub db_dirty() {	2178	sub db_dirty() {
1004	$dirty = 1;	2179	$dirty = 1;
1005	$idle->start;	2180	$idle->start;
1006	}	2181	}
1007		2182
1008	sub db_get($;$) {	2183	sub db_get($;$) {
1009	@_ >= 2	2184	@_ >= 2
1010	? $db->{$_[0]}{$_[1]}	2185	? $DB->{$_[0]}{$_[1]}
1011	: ($db->{$_[0]} ||= { })	2186	: ($DB->{$_[0]} ||= { })
1012	}	2187	}
1013		2188
1014	sub db_put($$;$) {	2189	sub db_put($$;$) {
1015	if (@_ >= 3) {	2190	if (@_ >= 3) {
1016	$db->{$_[0]}{$_[1]} = $_[2];	2191	$DB->{$_[0]}{$_[1]} = $_[2];
1017	} else {	2192	} else {
1018	$db->{$_[0]} = $_[1];	2193	$DB->{$_[0]} = $_[1];
1019	}	2194	}
1020	db_dirty;	2195	db_dirty;
1021	}	2196	}
1022		2197
1023	attach_global	2198	cf::global->attach (
1024	prio => 10000,	2199	prio => 10000,
1025	on_cleanup => sub {	2200	on_cleanup => sub {
1026	db_sync;	2201	db_sync;
1027	},	2202	},
1028	;	2203	);
1029	}	2204	}
1030		2205
1031	#############################################################################	2206	#############################################################################
1032	# the server's main()	2207	# the server's main()
1033		2208
…		…
1035	open my $fh, "<:utf8", cf::confdir . "/config"	2210	open my $fh, "<:utf8", cf::confdir . "/config"
1036	or return;	2211	or return;
1037		2212
1038	local $/;	2213	local $/;
1039	*CFG = YAML::Syck::Load <$fh>;	2214	*CFG = YAML::Syck::Load <$fh>;
		2215
		2216	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2217
		2218	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2219	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2220
		2221	if (exists $CFG{mlockall}) {
		2222	eval {
		2223	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2224	and die "WARNING: m(un)lockall failed: $!\n";
		2225	};
		2226	warn $@ if $@;
		2227	}
1040	}	2228	}
1041		2229
1042	sub main {	2230	sub main {
		2231	# we must not ever block the main coroutine
		2232	local $Coro::idle = sub {
		2233	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2234	async { Event::one_event };
		2235	};
		2236
1043	cfg_load;	2237	cfg_load;
1044	db_load;	2238	db_load;
1045	load_extensions;	2239	load_extensions;
1046	Event::loop;	2240	Event::loop;
1047	}	2241	}
1048		2242
1049	#############################################################################	2243	#############################################################################
1050	# initialisation	2244	# initialisation and cleanup
1051		2245
		2246	# install some emergency cleanup handlers
		2247	BEGIN {
		2248	for my $signal (qw(INT HUP TERM)) {
		2249	Event->signal (
		2250	data => WF_AUTOCANCEL,
		2251	signal => $signal,
		2252	cb => sub {
		2253	cf::cleanup "SIG$signal";
		2254	},
		2255	);
		2256	}
		2257	}
		2258
		2259	sub emergency_save() {
		2260	my $freeze_guard = cf::freeze_mainloop;
		2261
		2262	warn "enter emergency perl save\n";
		2263
		2264	cf::sync_job {
		2265	# use a peculiar iteration method to avoid tripping on perl
		2266	# refcount bugs in for. also avoids problems with players
		2267	# and maps saved/destroyed asynchronously.
		2268	warn "begin emergency player save\n";
		2269	for my $login (keys %cf::PLAYER) {
		2270	my $pl = $cf::PLAYER{$login} or next;
		2271	$pl->valid or next;
		2272	$pl->save;
		2273	}
		2274	warn "end emergency player save\n";
		2275
		2276	warn "begin emergency map save\n";
		2277	for my $path (keys %cf::MAP) {
		2278	my $map = $cf::MAP{$path} or next;
		2279	$map->valid or next;
		2280	$map->save;
		2281	}
		2282	warn "end emergency map save\n";
		2283	};
		2284
		2285	warn "leave emergency perl save\n";
		2286	}
		2287
1052	sub _perl_reload(&) {	2288	sub reload() {
1053	my ($msg) = @_;	2289	# can/must only be called in main
		2290	if ($Coro::current != $Coro::main) {
		2291	warn "can only reload from main coroutine\n";
		2292	return;
		2293	}
1054		2294
1055	$msg->("reloading...");	2295	warn "reloading...";
		2296
		2297	warn "freezing server";
		2298	my $guard = freeze_mainloop;
		2299	cf::emergency_save;
		2300
		2301	warn "sync database to disk";
		2302	cf::db_sync;
		2303	IO::AIO::flush;
1056		2304
1057	eval {	2305	eval {
		2306	# if anything goes wrong in here, we should simply crash as we already saved
		2307
1058	# cancel all watchers	2308	warn "cancel all watchers";
1059	$_->cancel for Event::all_watchers;	2309	for (Event::all_watchers) {
		2310	$_->cancel if $_->data & WF_AUTOCANCEL;
		2311	}
1060		2312
		2313	warn "cancel all extension coros";
		2314	$_->cancel for values %EXT_CORO;
		2315	%EXT_CORO = ();
		2316
		2317	warn "remove commands";
		2318	%COMMAND = ();
		2319
		2320	warn "remove ext commands";
		2321	%EXTCMD = ();
		2322
1061	# unload all extensions	2323	warn "unload/nuke all extensions";
1062	for (@exts) {	2324	for my $pkg (@EXTS) {
1063	$msg->("unloading <$_>");	2325	warn "... unloading $pkg";
1064	unload_extension $_;	2326
		2327	if (my $cb = $pkg->can ("unload")) {
		2328	eval {
		2329	$cb->($pkg);
		2330	1
		2331	} or warn "$pkg unloaded, but with errors: $@";
1065	}	2332	}
1066		2333
		2334	warn "... nuking $pkg";
		2335	Symbol::delete_package $pkg;
		2336	}
		2337
1067	# unload all modules loaded from $LIBDIR	2338	warn "unload all perl modules loaded from $LIBDIR";
1068	while (my ($k, $v) = each %INC) {	2339	while (my ($k, $v) = each %INC) {
1069	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2340	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1070		2341
1071	$msg->("removing <$k>");	2342	warn "removing <$k>";
1072	delete $INC{$k};	2343	delete $INC{$k};
1073		2344
1074	$k =~ s/\.pm$//;	2345	$k =~ s/\.pm$//;
1075	$k =~ s/\//::/g;	2346	$k =~ s/\//::/g;
1076		2347
…		…
1079	}	2350	}
1080		2351
1081	Symbol::delete_package $k;	2352	Symbol::delete_package $k;
1082	}	2353	}
1083		2354
1084	# sync database to disk
1085	cf::db_sync;
1086
1087	# get rid of safe::, as good as possible	2355	warn "get rid of safe::, as good as possible";
1088	Symbol::delete_package "safe::$_"	2356	Symbol::delete_package "safe::$_"
1089	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2357	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1090		2358
1091	# remove register_script_function callbacks
1092	# TODO
1093
1094	# unload cf.pm "a bit"	2359	warn "unload cf.pm \"a bit\"";
1095	delete $INC{"cf.pm"};	2360	delete $INC{"cf.pm"};
1096		2361
1097	# don't, removes xs symbols, too,	2362	# don't, removes xs symbols, too,
1098	# and global variables created in xs	2363	# and global variables created in xs
1099	#Symbol::delete_package __PACKAGE__;	2364	#Symbol::delete_package __PACKAGE__;
1100		2365
1101	# reload cf.pm
1102	$msg->("reloading cf.pm");	2366	warn "reloading cf.pm";
1103	require cf;	2367	require cf;
		2368	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1104		2369
1105	# load config and database again	2370	warn "load config and database again";
1106	cf::cfg_load;	2371	cf::cfg_load;
1107	cf::db_load;	2372	cf::db_load;
1108		2373
1109	# load extensions	2374	warn "load extensions";
1110	$msg->("load extensions");
1111	cf::load_extensions;	2375	cf::load_extensions;
1112		2376
1113	# reattach attachments to objects	2377	warn "reattach attachments to objects/players";
1114	$msg->("reattach");
1115	_global_reattach;	2378	_global_reattach;
		2379	warn "reattach attachments to maps";
		2380	reattach $_ for values %MAP;
1116	};	2381	};
1117	$msg->($@) if $@;
1118		2382
1119	$msg->("reloaded");	2383	if ($@) {
		2384	warn $@;
		2385	warn "error while reloading, exiting.";
		2386	exit 1;
		2387	}
		2388
		2389	warn "reloaded";
1120	};	2390	};
1121		2391
1122	sub perl_reload() {
1123	_perl_reload {
1124	warn $_[0];
1125	print "$_[0]\n";
1126	};
1127	}
1128
1129	register_command "perl-reload", 0, sub {	2392	register_command "reload" => sub {
1130	my ($who, $arg) = @_;	2393	my ($who, $arg) = @_;
1131		2394
1132	if ($who->flag (FLAG_WIZ)) {	2395	if ($who->flag (FLAG_WIZ)) {
1133	_perl_reload {	2396	$who->message ("start of reload.");
1134	warn $_[0];	2397	reload;
1135	$who->message ($_[0]);	2398	$who->message ("end of reload.");
1136	};
1137	}	2399	}
1138	};	2400	};
1139		2401
1140	register "<global>", __PACKAGE__;
1141
1142	unshift @INC, $LIBDIR;	2402	unshift @INC, $LIBDIR;
1143		2403
1144	$TICK_WATCHER = Event->timer (	2404	$TICK_WATCHER = Event->timer (
		2405	reentrant => 0,
1145	prio => 1,	2406	prio => 0,
1146	at => $NEXT_TICK || 1,	2407	at => $NEXT_TICK || $TICK,
		2408	data => WF_AUTOCANCEL,
1147	cb => sub {	2409	cb => sub {
		2410	$NOW = Event::time;
		2411
1148	cf::server_tick; # one server iteration	2412	cf::server_tick; # one server iteration
1149		2413	$RUNTIME += $TICK;
1150	my $NOW = Event::time;
1151	$NEXT_TICK += $TICK;	2414	$NEXT_TICK += $TICK;
1152		2415
		2416	$WAIT_FOR_TICK->broadcast;
		2417	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2418
1153	# if we are delayed by four ticks, skip them all	2419	# if we are delayed by four ticks or more, skip them all
1154	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2420	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1155		2421
1156	$TICK_WATCHER->at ($NEXT_TICK);	2422	$TICK_WATCHER->at ($NEXT_TICK);
1157	$TICK_WATCHER->start;	2423	$TICK_WATCHER->start;
1158	},	2424	},
1159	);	2425	);
1160		2426
		2427	IO::AIO::max_poll_time $TICK * 0.2;
		2428
		2429	$AIO_POLL_WATCHER = Event->io (
		2430	fd => IO::AIO::poll_fileno,
		2431	poll => 'r',
		2432	prio => 5,
		2433	data => WF_AUTOCANCEL,
		2434	cb => \&IO::AIO::poll_cb,
		2435	);
		2436
		2437	$WRITE_RUNTIME_WATCHER = Event->timer (
		2438	data => WF_AUTOCANCEL,
		2439	after => 0,
		2440	interval => 10,
		2441	cb => sub {
		2442	(Coro::unblock_sub {
		2443	write_runtime
		2444	or warn "ERROR: unable to write runtime file: $!";
		2445	})->();
		2446	},
		2447	);
		2448
		2449	END { cf::emergency_save }
		2450
1161	1	2451	1
1162		2452

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