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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.88 by root, Fri Dec 15 19:29:18 2006 UTC vs.
Revision 1.198 by root, Sun Jan 28 01:58:37 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 3.5 ();
		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;
10	use IO::AIO ();	23	use IO::AIO 2.32 ();
11	use YAML::Syck ();	24	use YAML::Syck ();
12	use Time::HiRes;	25	use Time::HiRes;
13	use Event;	26
14	$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
15		30
16	# 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?
17	$YAML::Syck::ImplicitUnicode = 1;	32	$YAML::Syck::ImplicitUnicode = 1;
18		33
19	use strict;	34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
20
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		35
23	our %COMMAND = ();	36	our %COMMAND = ();
24	our %COMMAND_TIME = ();	37	our %COMMAND_TIME = ();
		38
		39	our @EXTS = (); # list of extension package names
25	our %EXTCMD = ();	40	our %EXTCMD = ();
26		41	our %EXT_CORO = (); # coroutines bound to extensions
27	_init_vars;	42	our %EXT_MAP = (); # pluggable maps
28		43
29	our @EVENT;	44	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	45	our $LIBDIR = datadir . "/ext";
31		46
32	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
34	our $NEXT_TICK;	51	our $NEXT_TICK;
		52	our $NOW;
35		53
36	our %CFG;	54	our %CFG;
37		55
38	our $UPTIME; $UPTIME ||= time;	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;
39		87
40	#############################################################################	88	#############################################################################
41		89
42	=head2 GLOBAL VARIABLES	90	=head2 GLOBAL VARIABLES
43		91
44	=over 4	92	=over 4
45		93
46	=item $cf::UPTIME	94	=item $cf::UPTIME
47		95
48	The timestamp of the server start (so not actually an uptime).	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.
49		102
50	=item $cf::LIBDIR	103	=item $cf::LIBDIR
51		104
52	The perl library directory, where extensions and cf-specific modules can	105	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	106	be found. It will be added to C<@INC> automatically.
54		107
		108	=item $cf::NOW
		109
		110	The time of the last (current) server tick.
		111
55	=item $cf::TICK	112	=item $cf::TICK
56		113
57	The interval between server ticks, in seconds.	114	The interval between server ticks, in seconds.
58		115
59	=item %cf::CFG	116	=item %cf::CFG
60		117
61	Configuration for the server, loaded from C</etc/crossfire/config>, or	118	Configuration for the server, loaded from C</etc/crossfire/config>, or
62	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.
63		127
64	=back	128	=back
65		129
66	=cut	130	=cut
67		131
68	BEGIN {	132	BEGIN {
69	*CORE::GLOBAL::warn = sub {	133	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	134	my $msg = join "", @_;
		135	utf8::encode $msg;
		136
71	$msg .= "\n"	137	$msg .= "\n"
72	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
73		139
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
76	};	141	};
77	}	142	}
78		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';
79	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
80		150
81	# 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
82	# within the Safe compartment.	152	# within the Safe compartment.
83	for my $pkg (qw(	153	for my $pkg (qw(
		154	cf::global cf::attachable
84	cf::object cf::object::player	155	cf::object cf::object::player
85	cf::client_socket cf::player	156	cf::client cf::player
86	cf::arch cf::living	157	cf::arch cf::living
87	cf::map cf::party cf::region	158	cf::map cf::party cf::region
88	)) {	159	)) {
89	no strict 'refs';	160	no strict 'refs';
90	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
…		…
92		163
93	$Event::DIED = sub {	164	$Event::DIED = sub {
94	warn "error in event callback: @_";	165	warn "error in event callback: @_";
95	};	166	};
96		167
97	my %ext_pkg;
98	my @exts;
99	my @hook;
100
101	=head2 UTILITY FUNCTIONS	168	=head2 UTILITY FUNCTIONS
102		169
103	=over 4	170	=over 4
104		171
		172	=item dumpval $ref
		173
105	=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	}
106		194
107	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
108		196
109	=item $ref = cf::from_json $json	197	=item $ref = cf::from_json $json
110		198
…		…
126	sub to_json($) {	214	sub to_json($) {
127	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
128	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
129	}	217	}
130		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 + 90 + 10;
		355	# 10 is the runtime save interval, for a monotonic clock
		356	# 60 allows for the watchdog to kill the server.
		357
		358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		359	and return;
		360
		361	aio_fsync $fh
		362	and return;
		363
		364	close $fh
		365	or return;
		366
		367	aio_rename "$runtime~", $runtime
		368	and return;
		369
		370	1
		371	}
		372
131	=back	373	=back
132		374
133	=cut	375	=cut
134		376
135	#############################################################################	377	#############################################################################
136		378
137	=head2 EVENTS AND OBJECT ATTACHMENTS	379	=head2 ATTACHABLE OBJECTS
		380
		381	Many objects in crossfire are so-called attachable objects. That means you can
		382	attach callbacks/event handlers (a collection of which is called an "attachment")
		383	to it. All such attachable objects support the following methods.
		384
		385	In the following description, CLASS can be any of C<global>, C<object>
		386	C<player>, C<client> or C<map> (i.e. the attachable objects in
		387	crossfire+).
138		388
139	=over 4	389	=over 4
140		390
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...)	391	=item $attachable->attach ($attachment, key => $value...)
154		392
155	=item $map->detach ($attachment)	393	=item $attachable->detach ($attachment)
156		394
157	Attach/detach a pre-registered attachment to a map.	395	Attach/detach a pre-registered attachment to a specific object and give it
		396	the specified key/value pairs as arguments.
158		397
159	=item $bool = $object->attached ($name)	398	Example, attach a minesweeper attachment to the given object, making it a
		399	10x10 minesweeper game:
160		400
161	=item $bool = $player->attached ($name)	401	$obj->attach (minesweeper => width => 10, height => 10);
162		402
163	=item $bool = $map->attached ($name)	403	=item $bool = $attachable->attached ($name)
164		404
165	Checks wether the named attachment is currently attached to the object.	405	Checks wether the named attachment is currently attached to the object.
166		406
167	=item cf::attach_global ...	407	=item cf::CLASS->attach ...
168		408
169	Attach handlers for global events.	409	=item cf::CLASS->detach ...
170		410
171	This and all following C<attach_*>-functions expect any number of the	411	Define an anonymous attachment and attach it to all objects of the given
172	following handler/hook descriptions:	412	CLASS. See the next function for an explanation of its arguments.
		413
		414	You can attach to global events by using the C<cf::global> class.
		415
		416	Example, log all player logins:
		417
		418	cf::player->attach (
		419	on_login => sub {
		420	my ($pl) = @_;
		421	...
		422	},
		423	);
		424
		425	Example, attach to the jeweler skill:
		426
		427	cf::object->attach (
		428	type => cf::SKILL,
		429	subtype => cf::SK_JEWELER,
		430	on_use_skill => sub {
		431	my ($sk, $ob, $part, $dir, $msg) = @_;
		432	...
		433	},
		434	);
		435
		436	=item cf::CLASS::attachment $name, ...
		437
		438	Register an attachment by C<$name> through which attachable objects of the
		439	given CLASS can refer to this attachment.
		440
		441	Some classes such as crossfire maps and objects can specify attachments
		442	that are attached at load/instantiate time, thus the need for a name.
		443
		444	These calls expect any number of the following handler/hook descriptions:
173		445
174	=over 4	446	=over 4
175		447
176	=item prio => $number	448	=item prio => $number
177		449
…		…
179	by another C<prio> setting). Lower priority handlers get executed	451	by another C<prio> setting). Lower priority handlers get executed
180	earlier. The default priority is C<0>, and many built-in handlers are	452	earlier. The default priority is C<0>, and many built-in handlers are
181	registered at priority C<-1000>, so lower priorities should not be used	453	registered at priority C<-1000>, so lower priorities should not be used
182	unless you know what you are doing.	454	unless you know what you are doing.
183		455
		456	=item type => $type
		457
		458	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		459	given type of objects only (the additional parameter C<subtype> can be
		460	used to further limit to the given subtype).
		461
184	=item on_I<event> => \&cb	462	=item on_I<event> => \&cb
185		463
186	Call the given code reference whenever the named event happens (event is	464	Call the given code reference whenever the named event happens (event is
187	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	465	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
188	handlers are recognised generally depends on the type of object these	466	handlers are recognised generally depends on the type of object these
…		…
197	package and register them. Only handlers for eevents supported by the	475	package and register them. Only handlers for eevents supported by the
198	object/class are recognised.	476	object/class are recognised.
199		477
200	=back	478	=back
201		479
202	=item cf::attach_to_type $object_type, $subtype, ...	480	Example, define an attachment called "sockpuppet" that calls the given
		481	event handler when a monster attacks:
203		482
204	Attach handlers for a specific object type (e.g. TRANSPORT) and	483	cf::object::attachment sockpuppet =>
205	subtype. If C<$subtype> is zero or undef, matches all objects of the given	484	on_skill_attack => sub {
206	type.	485	my ($self, $victim) = @_;
207		486	...
208	=item cf::attach_to_objects ...
209
210	Attach handlers to all objects. Do not use this except for debugging or
211	very rare events, as handlers are (obviously) called for I<all> objects in
212	the game.
213
214	=item cf::attach_to_players ...
215
216	Attach handlers to all players.
217
218	=item cf::attach_to_maps ...
219
220	Attach handlers to all maps.
221
222	=item cf:register_attachment $name, ...
223
224	Register an attachment by name through which objects can refer to this
225	attachment.
226
227	=item cf:register_player_attachment $name, ...
228
229	Register an attachment by name through which players can refer to this
230	attachment.
231
232	=item cf:register_map_attachment $name, ...
233
234	Register an attachment by name through which maps can refer to this
235	attachment.
236
237	=cut
238
239	# the following variables are defined in .xs and must not be re-created
240	our @CB_GLOBAL = (); # registry for all global events
241	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
242	our @CB_PLAYER = ();
243	our @CB_TYPE = (); # registry for type (cf-object class) based events
244	our @CB_MAP = ();
245
246	my %attachment;
247
248	sub _attach_cb($\%$$$) {
249	my ($registry, $undo, $event, $prio, $cb) = @_;
250
251	use sort 'stable';
252
253	$cb = [$prio, $cb];
254
255	@{$registry->[$event]} = sort
256	{ $a->[0] cmp $b->[0] }
257	@{$registry->[$event] || []}, $cb;
258
259	push @{$undo->{cb}}, [$event, $cb];
260	}
261
262	# attach handles attaching event callbacks
263	# the only thing the caller has to do is pass the correct
264	# registry (== where the callback attaches to).
265	sub _attach(\@$@) {
266	my ($registry, $klass, @arg) = @_;
267
268	my $prio = 0;
269
270	my %undo = (
271	registry => $registry,
272	cb => [],
273	);
274
275	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
276
277	while (@arg) {
278	my $type = shift @arg;
279
280	if ($type eq "prio") {
281	$prio = shift @arg;
282
283	} elsif ($type eq "package") {
284	my $pkg = shift @arg;
285
286	while (my ($name, $id) = each %cb_id) {
287	if (my $cb = $pkg->can ($name)) {
288	_attach_cb $registry, %undo, $id, $prio, $cb;
289	}
290	}	487	}
291
292	} elsif (exists $cb_id{$type}) {
293	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
294
295	} elsif (ref $type) {
296	warn "attaching objects not supported, ignoring.\n";
297
298	} else {
299	shift @arg;
300	warn "attach argument '$type' not supported, ignoring.\n";
301	}
302	}
303
304	\%undo
305	}
306
307	sub _attach_attachment {
308	my ($obj, $name, %arg) = @_;
309
310	return if exists $obj->{_attachment}{$name};
311
312	my $res;
313
314	if (my $attach = $attachment{$name}) {
315	my $registry = $obj->registry;
316
317	for (@$attach) {
318	my ($klass, @attach) = @$_;
319	$res = _attach @$registry, $klass, @attach;
320	}
321
322	$obj->{$name} = \%arg;
323	} else {
324	warn "object uses attachment '$name' that is not available, postponing.\n";
325	}
326
327	$obj->{_attachment}{$name} = undef;
328
329	$res->{attachment} = $name;
330	$res
331	}
332
333	*cf::object::attach =
334	*cf::player::attach =
335	*cf::map::attach = sub {
336	my ($obj, $name, %arg) = @_;
337
338	_attach_attachment $obj, $name, %arg;
339	};
340
341	# all those should be optimised
342	*cf::object::detach =
343	*cf::player::detach =
344	*cf::map::detach = sub {
345	my ($obj, $name) = @_;
346
347	delete $obj->{_attachment}{$name};
348	reattach ($obj);
349	};
350
351	*cf::object::attached =
352	*cf::player::attached =
353	*cf::map::attached = sub {
354	my ($obj, $name) = @_;
355
356	exists $obj->{_attachment}{$name}
357	};
358
359	sub attach_global {
360	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
361	}
362
363	sub attach_to_type {
364	my $type = shift;
365	my $subtype = shift;
366
367	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
368	}
369
370	sub attach_to_objects {
371	_attach @CB_OBJECT, KLASS_OBJECT, @_
372	}
373
374	sub attach_to_players {
375	_attach @CB_PLAYER, KLASS_PLAYER, @_
376	}
377
378	sub attach_to_maps {
379	_attach @CB_MAP, KLASS_MAP, @_
380	}
381
382	sub register_attachment {
383	my $name = shift;
384
385	$attachment{$name} = [[KLASS_OBJECT, @_]];
386	}
387
388	sub register_player_attachment {
389	my $name = shift;
390
391	$attachment{$name} = [[KLASS_PLAYER, @_]];
392	}
393
394	sub register_map_attachment {
395	my $name = shift;
396
397	$attachment{$name} = [[KLASS_MAP, @_]];
398	}
399
400	our $override;
401	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
402
403	sub override {
404	$override = 1;
405	@invoke_results = ();
406	}
407
408	sub do_invoke {
409	my $event = shift;
410	my $callbacks = shift;
411
412	@invoke_results = ();
413
414	local $override;
415
416	for (@$callbacks) {
417	eval { &{$_->[1]} };
418
419	if ($@) {
420	warn "$@";
421	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
422	override;
423	}
424
425	return 1 if $override;
426	}
427
428	0	488	}
429	}
430		489
431	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	490	=item $attachable->valid
432
433	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
434
435	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
436
437	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
438
439	Generate a global/object/player/map-specific event with the given arguments.
440
441	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
442	removed in future versions), and there is no public API to access override
443	results (if you must, access C<@cf::invoke_results> directly).
444
445	=back
446
447	=cut
448
449	#############################################################################
450
451	=head2 METHODS VALID FOR ALL CORE OBJECTS
452
453	=over 4
454
455	=item $object->valid, $player->valid, $map->valid
456		491
457	Just because you have a perl object does not mean that the corresponding	492	Just because you have a perl object does not mean that the corresponding
458	C-level object still exists. If you try to access an object that has no	493	C-level object still exists. If you try to access an object that has no
459	valid C counterpart anymore you get an exception at runtime. This method	494	valid C counterpart anymore you get an exception at runtime. This method
460	can be used to test for existence of the C object part without causing an	495	can be used to test for existence of the C object part without causing an
461	exception.	496	exception.
462		497
		498	=cut
		499
		500	# the following variables are defined in .xs and must not be re-created
		501	our @CB_GLOBAL = (); # registry for all global events
		502	our @CB_ATTACHABLE = (); # registry for all attachables
		503	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		504	our @CB_PLAYER = ();
		505	our @CB_CLIENT = ();
		506	our @CB_TYPE = (); # registry for type (cf-object class) based events
		507	our @CB_MAP = ();
		508
		509	my %attachment;
		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
		517	sub _attach_cb($$$$) {
		518	my ($registry, $event, $prio, $cb) = @_;
		519
		520	use sort 'stable';
		521
		522	$cb = [$prio, $cb];
		523
		524	@{$registry->[$event]} = sort
		525	{ $a->[0] cmp $b->[0] }
		526	@{$registry->[$event] || []}, $cb;
		527	}
		528
		529	# hack
		530	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		531
		532	# attach handles attaching event callbacks
		533	# the only thing the caller has to do is pass the correct
		534	# registry (== where the callback attaches to).
		535	sub _attach {
		536	my ($registry, $klass, @arg) = @_;
		537
		538	my $object_type;
		539	my $prio = 0;
		540	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		541
		542	#TODO: get rid of this hack
		543	if ($attachable_klass{$klass}) {
		544	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		545	}
		546
		547	while (@arg) {
		548	my $type = shift @arg;
		549
		550	if ($type eq "prio") {
		551	$prio = shift @arg;
		552
		553	} elsif ($type eq "type") {
		554	$object_type = shift @arg;
		555	$registry = $CB_TYPE[$object_type] ||= [];
		556
		557	} elsif ($type eq "subtype") {
		558	defined $object_type or Carp::croak "subtype specified without type";
		559	my $object_subtype = shift @arg;
		560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];
		561
		562	} elsif ($type eq "package") {
		563	my $pkg = shift @arg;
		564
		565	while (my ($name, $id) = each %cb_id) {
		566	if (my $cb = $pkg->can ($name)) {
		567	_attach_cb $registry, $id, $prio, $cb;
		568	}
		569	}
		570
		571	} elsif (exists $cb_id{$type}) {
		572	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		573
		574	} elsif (ref $type) {
		575	warn "attaching objects not supported, ignoring.\n";
		576
		577	} else {
		578	shift @arg;
		579	warn "attach argument '$type' not supported, ignoring.\n";
		580	}
		581	}
		582	}
		583
		584	sub _object_attach {
		585	my ($obj, $name, %arg) = @_;
		586
		587	return if exists $obj->{_attachment}{$name};
		588
		589	if (my $attach = $attachment{$name}) {
		590	my $registry = $obj->registry;
		591
		592	for (@$attach) {
		593	my ($klass, @attach) = @$_;
		594	_attach $registry, $klass, @attach;
		595	}
		596
		597	$obj->{$name} = \%arg;
		598	} else {
		599	warn "object uses attachment '$name' that is not available, postponing.\n";
		600	}
		601
		602	$obj->{_attachment}{$name} = undef;
		603	}
		604
		605	sub cf::attachable::attach {
		606	if (ref $_[0]) {
		607	_object_attach @_;
		608	} else {
		609	_attach shift->_attach_registry, @_;
		610	}
		611	};
		612
		613	# all those should be optimised
		614	sub cf::attachable::detach {
		615	my ($obj, $name) = @_;
		616
		617	if (ref $obj) {
		618	delete $obj->{_attachment}{$name};
		619	reattach ($obj);
		620	} else {
		621	Carp::croak "cannot, currently, detach class attachments";
		622	}
		623	};
		624
		625	sub cf::attachable::attached {
		626	my ($obj, $name) = @_;
		627
		628	exists $obj->{_attachment}{$name}
		629	}
		630
		631	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		632	eval "#line " . __LINE__ . " 'cf.pm'
		633	sub cf::\L$klass\E::_attach_registry {
		634	(\\\@CB_$klass, KLASS_$klass)
		635	}
		636
		637	sub cf::\L$klass\E::attachment {
		638	my \$name = shift;
		639
		640	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		641	}
		642	";
		643	die if $@;
		644	}
		645
		646	our $override;
		647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		648
		649	sub override {
		650	$override = 1;
		651	@invoke_results = ();
		652	}
		653
		654	sub do_invoke {
		655	my $event = shift;
		656	my $callbacks = shift;
		657
		658	@invoke_results = ();
		659
		660	local $override;
		661
		662	for (@$callbacks) {
		663	eval { &{$_->[1]} };
		664
		665	if ($@) {
		666	warn "$@";
		667	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		668	override;
		669	}
		670
		671	return 1 if $override;
		672	}
		673
		674	0
		675	}
		676
		677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		678
		679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		680
		681	Generate an object-specific event with the given arguments.
		682
		683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		684	removed in future versions), and there is no public API to access override
		685	results (if you must, access C<@cf::invoke_results> directly).
		686
463	=back	687	=back
464		688
465	=cut	689	=cut
466
467	*cf::object::valid =
468	*cf::player::valid =
469	*cf::map::valid = \&cf::_valid;
470		690
471	#############################################################################	691	#############################################################################
472	# object support	692	# object support
473		693
474	sub instantiate {
475	my ($obj, $data) = @_;
476
477	$data = from_json $data;
478
479	for (@$data) {
480	my ($name, $args) = @$_;
481
482	$obj->attach ($name, %{$args || {} });
483	}
484	}
485
486	# basically do the same as instantiate, without calling instantiate
487	sub reattach {	694	sub reattach {
		695	# basically do the same as instantiate, without calling instantiate
488	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		699
489	my $registry = $obj->registry;	700	my $registry = $obj->registry;
490		701
491	@$registry = ();	702	@$registry = ();
492		703
493	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	704	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
494		705
495	for my $name (keys %{ $obj->{_attachment} || {} }) {	706	for my $name (keys %{ $obj->{_attachment} || {} }) {
496	if (my $attach = $attachment{$name}) {	707	if (my $attach = $attachment{$name}) {
497	for (@$attach) {	708	for (@$attach) {
498	my ($klass, @attach) = @$_;	709	my ($klass, @attach) = @$_;
499	_attach @$registry, $klass, @attach;	710	_attach $registry, $klass, @attach;
500	}	711	}
501	} else {	712	} else {
502	warn "object uses attachment '$name' that is not available, postponing.\n";	713	warn "object uses attachment '$name' that is not available, postponing.\n";
503	}	714	}
504	}	715	}
505	}	716	}
506		717
507	sub object_freezer_save {	718	cf::attachable->attach (
508	my ($filename, $rdata, $objs) = @_;
509
510	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;
513
514	if (open my $fh, ">:raw", "$filename~") {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
522	close $fh;
523	rename "$filename.pst~", "$filename.pst";
524	} else {
525	unlink "$filename.pst";
526	}
527
528	rename "$filename~", $filename;
529	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;
534	unlink "$filename.pst";
535	}
536	}
537
538	sub object_freezer_as_string {
539	my ($rdata, $objs) = @_;
540
541	use Data::Dumper;
542
543	$$rdata . Dumper $objs
544	}
545
546	sub object_thawer_load {
547	my ($filename) = @_;
548
549	local $/;
550
551	my $av;
552
553	#TODO: use sysread etc.
554	if (open my $data, "<:raw:perlio", $filename) {
555	$data = <$data>;
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {
557	$av = eval { (Storable::thaw <$pst>)->{objs} };
558	}
559	return ($data, $av);
560	}
561
562	()
563	}
564
565	attach_to_objects
566	prio => -1000000,	719	prio => -1000000,
		720	on_instantiate => sub {
		721	my ($obj, $data) = @_;
		722
		723	$data = from_json $data;
		724
		725	for (@$data) {
		726	my ($name, $args) = @$_;
		727
		728	$obj->attach ($name, %{$args || {} });
		729	}
		730	},
		731	on_reattach => \&reattach,
567	on_clone => sub {	732	on_clone => sub {
568	my ($src, $dst) = @_;	733	my ($src, $dst) = @_;
569		734
570	@{$dst->registry} = @{$src->registry};	735	@{$dst->registry} = @{$src->registry};
571		736
572	%$dst = %$src;	737	%$dst = %$src;
573		738
574	%{$dst->{_attachment}} = %{$src->{_attachment}}	739	%{$dst->{_attachment}} = %{$src->{_attachment}}
575	if exists $src->{_attachment};	740	if exists $src->{_attachment};
576	},	741	},
577	;	742	);
		743
		744	sub object_freezer_save {
		745	my ($filename, $rdata, $objs) = @_;
		746
		747	sync_job {
		748	if (length $$rdata) {
		749	warn sprintf "saving %s (%d,%d)\n",
		750	$filename, length $$rdata, scalar @$objs;
		751
		752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		753	chmod SAVE_MODE, $fh;
		754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		755	aio_fsync $fh;
		756	close $fh;
		757
		758	if (@$objs) {
		759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		760	chmod SAVE_MODE, $fh;
		761	my $data = Storable::nfreeze { version => 1, objs => $objs };
		762	aio_write $fh, 0, (length $data), $data, 0;
		763	aio_fsync $fh;
		764	close $fh;
		765	aio_rename "$filename.pst~", "$filename.pst";
		766	}
		767	} else {
		768	aio_unlink "$filename.pst";
		769	}
		770
		771	aio_rename "$filename~", $filename;
		772	} else {
		773	warn "FATAL: $filename~: $!\n";
		774	}
		775	} else {
		776	aio_unlink $filename;
		777	aio_unlink "$filename.pst";
		778	}
		779	}
		780	}
		781
		782	sub object_freezer_as_string {
		783	my ($rdata, $objs) = @_;
		784
		785	use Data::Dumper;
		786
		787	$$rdata . Dumper $objs
		788	}
		789
		790	sub object_thawer_load {
		791	my ($filename) = @_;
		792
		793	my ($data, $av);
		794
		795	(aio_load $filename, $data) >= 0
		796	or return;
		797
		798	unless (aio_stat "$filename.pst") {
		799	(aio_load "$filename.pst", $av) >= 0
		800	or return;
		801	$av = eval { (Storable::thaw $av)->{objs} };
		802	}
		803
		804	warn sprintf "loading %s (%d)\n",
		805	$filename, length $data, scalar @{$av || []};#d#
		806	return ($data, $av);
		807	}
578		808
579	#############################################################################	809	#############################################################################
580	# command handling &c	810	# command handling &c
581		811
582	=item cf::register_command $name => \&callback($ob,$args);	812	=item cf::register_command $name => \&callback($ob,$args);
…		…
605	=cut	835	=cut
606		836
607	sub register_extcmd {	837	sub register_extcmd {
608	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
609		839
610	my $caller = caller;
611	#warn "registering extcmd '$name' to '$caller'";
612
613	$EXTCMD{$name} = [$cb, $caller];	840	$EXTCMD{$name} = $cb;
614	}	841	}
615		842
616	attach_to_players	843	cf::player->attach (
617	on_command => sub {	844	on_command => sub {
618	my ($pl, $name, $params) = @_;	845	my ($pl, $name, $params) = @_;
619		846
620	my $cb = $COMMAND{$name}	847	my $cb = $COMMAND{$name}
621	or return;	848	or return;
…		…
631		858
632	my $msg = eval { from_json $buf };	859	my $msg = eval { from_json $buf };
633		860
634	if (ref $msg) {	861	if (ref $msg) {
635	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
636	if (my %reply = $cb->[0]->($pl, $msg)) {	863	if (my %reply = $cb->($pl, $msg)) {
637	$pl->ext_reply ($msg->{msgid}, %reply);	864	$pl->ext_reply ($msg->{msgid}, %reply);
638	}	865	}
639	}	866	}
640	} else {	867	} else {
641	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
642	}	869	}
643		870
644	cf::override;	871	cf::override;
645	},	872	},
646	;	873	);
647
648	sub register {
649	my ($base, $pkg) = @_;
650
651	#TODO
652	}
653		874
654	sub load_extension {	875	sub load_extension {
655	my ($path) = @_;	876	my ($path) = @_;
656		877
657	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
658	my $base = $1;	879	my $base = $1;
659	my $pkg = $1;	880	my $pkg = $1;
660	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
661	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
662		883
663	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
664		885
665	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
666	or die "$path: $!";	887	or die "$path: $!";
667		888
668	my $source =	889	my $source =
669	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
670	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
671	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
672	. "\n};\n1";	893	. "\n};\n1";
673		894
674	eval $source	895	unless (eval $source) {
675	or die $@ ? "$path: $@\n"	896	my $msg = $@ ? "$path: $@\n"
676	: "extension disabled.\n";	897	: "extension disabled.\n";
677		898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
678	push @exts, $pkg;	899	warn $@;
679	$ext_pkg{$base} = $pkg;	900	warn "mandatory extension failed to load, exiting.\n";
680		901	exit 1;
681	# no strict 'refs';	902	}
682	# @{"$pkg\::ISA"} = ext::;	903	die $@;
683
684	register $base, $pkg;
685	}
686
687	sub unload_extension {
688	my ($pkg) = @_;
689
690	warn "removing extension $pkg\n";
691
692	# remove hooks
693	#TODO
694	# for my $idx (0 .. $#PLUGIN_EVENT) {
695	# delete $hook[$idx]{$pkg};
696	# }	904	}
697		905
698	# remove commands	906	push @EXTS, $pkg;
699	for my $name (keys %COMMAND) {
700	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
701
702	if (@cb) {
703	$COMMAND{$name} = \@cb;
704	} else {
705	delete $COMMAND{$name};
706	}
707	}
708
709	# remove extcmds
710	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
711	delete $EXTCMD{$name};
712	}
713
714	if (my $cb = $pkg->can ("unload")) {
715	eval {
716	$cb->($pkg);
717	1
718	} or warn "$pkg unloaded, but with errors: $@";
719	}
720
721	Symbol::delete_package $pkg;
722	}	907	}
723		908
724	sub load_extensions {	909	sub load_extensions {
725	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
726	next unless -r $ext;	911	next unless -r $ext;
…		…
730	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
731	}	916	}
732	}	917	}
733		918
734	#############################################################################	919	#############################################################################
735	# load/save/clean perl data associated with a map
736		920
737	*cf::mapsupport::on_clean = sub {	921	=head2 CORE EXTENSIONS
		922
		923	Functions and methods that extend core crossfire objects.
		924
		925	=cut
		926
		927	package cf::player;
		928
		929	use Coro::AIO;
		930
		931	=head3 cf::player
		932
		933	=over 4
		934
		935	=item cf::player::find $login
		936
		937	Returns the given player object, loading it if necessary (might block).
		938
		939	=cut
		940
		941	sub playerdir($) {
		942	cf::localdir
		943	. "/"
		944	. cf::playerdir
		945	. "/"
		946	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		947	}
		948
		949	sub path($) {
		950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		951
		952	(playerdir $login) . "/$login.pl"
		953	}
		954
		955	sub find_active($) {
		956	$cf::PLAYER{$_[0]}
		957	and $cf::PLAYER{$_[0]}->active
		958	and $cf::PLAYER{$_[0]}
		959	}
		960
		961	sub exists($) {
		962	my ($login) = @_;
		963
		964	$cf::PLAYER{$login}
		965	or cf::sync_job { !aio_stat path $login }
		966	}
		967
		968	sub find($) {
		969	return $cf::PLAYER{$_[0]} || do {
		970	my $login = $_[0];
		971
		972	my $guard = cf::lock_acquire "user_find:$login";
		973
		974	$cf::PLAYER{$_[0]} || do {
		975	my $pl = load_pl path $login
		976	or return;
		977	$cf::PLAYER{$login} = $pl
		978	}
		979	}
		980	}
		981
		982	sub save($) {
		983	my ($pl) = @_;
		984
		985	return if $pl->{deny_save};
		986
		987	my $path = path $pl;
		988	my $guard = cf::lock_acquire "user_save:$path";
		989
		990	return if $pl->{deny_save};
		991
		992	aio_mkdir playerdir $pl, 0770;
		993	$pl->{last_save} = $cf::RUNTIME;
		994
		995	$pl->save_pl ($path);
		996	Coro::cede;
		997	}
		998
		999	sub new($) {
		1000	my ($login) = @_;
		1001
		1002	my $self = create;
		1003
		1004	$self->ob->name ($login);
		1005	$self->{deny_save} = 1;
		1006
		1007	$cf::PLAYER{$login} = $self;
		1008
		1009	$self
		1010	}
		1011
		1012	=item $pl->quit_character
		1013
		1014	Nukes the player without looking back. If logged in, the connection will
		1015	be destroyed. May block for a long time.
		1016
		1017	=cut
		1018
		1019	sub quit_character {
		1020	my ($pl) = @_;
		1021
		1022	$pl->{deny_save} = 1;
		1023	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1024
		1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1026	$pl->deactivate;
		1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1028	$pl->ns->destroy if $pl->ns;
		1029
		1030	my $path = playerdir $pl;
		1031	my $temp = "$path~$cf::RUNTIME~deleting~";
		1032	aio_rename $path, $temp;
		1033	delete $cf::PLAYER{$pl->ob->name};
		1034	$pl->destroy;
		1035	IO::AIO::aio_rmtree $temp;
		1036	}
		1037
		1038	=item cf::player::list_logins
		1039
		1040	Returns am arrayref of all valid playernames in the system, can take a
		1041	while and may block, so not sync_job-capable, ever.
		1042
		1043	=cut
		1044
		1045	sub list_logins {
		1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
		1047	or return [];
		1048
		1049	my @logins;
		1050
		1051	for my $login (@$dirs) {
		1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1053	aio_read $fh, 0, 512, my $buf, 0 or next;
		1054	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1055
		1056	utf8::decode $login;
		1057	push @logins, $login;
		1058	}
		1059
		1060	\@logins
		1061	}
		1062
		1063	=item $player->maps
		1064
		1065	Returns an arrayref of map paths that are private for this
		1066	player. May block.
		1067
		1068	=cut
		1069
		1070	sub maps($) {
		1071	my ($pl) = @_;
		1072
		1073	my $files = aio_readdir playerdir $pl
		1074	or return;
		1075
		1076	my @paths;
		1077
		1078	for (@$files) {
		1079	utf8::decode $_;
		1080	next if /\.(?:pl|pst)$/;
		1081	next unless /^$PATH_SEP/o;
		1082
		1083	s/\.map$//;
		1084	push @paths, "~" . $pl->ob->name . "/" . $_;
		1085	}
		1086
		1087	\@paths
		1088	}
		1089
		1090	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1091
		1092	Sends an ext reply to the player.
		1093
		1094	=cut
		1095
		1096	sub ext_reply($$$%) {
		1097	my ($self, $id, %msg) = @_;
		1098
		1099	$msg{msgid} = $id;
		1100
		1101	$self->send ("ext " . cf::to_json \%msg);
		1102	}
		1103
		1104	package cf;
		1105
		1106	=back
		1107
		1108
		1109	=head3 cf::map
		1110
		1111	=over 4
		1112
		1113	=cut
		1114
		1115	package cf::map;
		1116
		1117	use Fcntl;
		1118	use Coro::AIO;
		1119
		1120	use overload
		1121	'""' => \&as_string,
		1122	fallback => 1;
		1123
		1124	our $MAX_RESET = 3600;
		1125	our $DEFAULT_RESET = 3000;
		1126
		1127	sub generate_random_map {
		1128	my ($self, $rmp) = @_;
		1129	# mit "rum" bekleckern, nicht
		1130	$self->_create_random_map (
		1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1134	$rmp->{exit_on_final_map},
		1135	$rmp->{xsize}, $rmp->{ysize},
		1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1141	(cf::region::find $rmp->{region}), $rmp->{custom}
		1142	)
		1143	}
		1144
		1145	=item cf::map->register ($regex, $prio)
		1146
		1147	Register a handler for the map path matching the given regex at the
		1148	givne priority (higher is better, built-in handlers have priority 0, the
		1149	default).
		1150
		1151	=cut
		1152
		1153	sub register {
		1154	my (undef, $regex, $prio) = @_;
		1155	my $pkg = caller;
		1156
		1157	no strict;
		1158	push @{"$pkg\::ISA"}, __PACKAGE__;
		1159
		1160	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1161	}
		1162
		1163	# also paths starting with '/'
		1164	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1165
		1166	sub thawer_merge {
		1167	my ($self, $merge) = @_;
		1168
		1169	# we have to keep some variables in memory intact
		1170	local $self->{path};
		1171	local $self->{load_path};
		1172	local $self->{deny_save};
		1173	local $self->{deny_reset};
		1174
		1175	$self->SUPER::thawer_merge ($merge);
		1176	}
		1177
		1178	sub normalise {
		1179	my ($path, $base) = @_;
		1180
		1181	$path = "$path"; # make sure its a string
		1182
		1183	# map plan:
		1184	#
		1185	# /! non-realised random map exit (special hack!)
		1186	# {... are special paths that are not being touched
		1187	# ?xxx/... are special absolute paths
		1188	# ?random/... random maps
		1189	# /... normal maps
		1190	# ~user/... per-player map of a specific user
		1191
		1192	$path =~ s/$PATH_SEP/\//go;
		1193
		1194	# treat it as relative path if it starts with
		1195	# something that looks reasonable
		1196	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1197	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1198
		1199	$base =~ s{[^/]+/?$}{};
		1200	$path = "$base/$path";
		1201	}
		1202
		1203	for ($path) {
		1204	redo if s{//}{/};
		1205	redo if s{/\.?/}{/};
		1206	redo if s{/[^/]+/\.\./}{/};
		1207	}
		1208
		1209	$path
		1210	}
		1211
		1212	sub new_from_path {
		1213	my (undef, $path, $base) = @_;
		1214
		1215	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1216
		1217	$path = normalise $path, $base;
		1218
		1219	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1220	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1221	my $self = bless cf::map::new, $pkg;
		1222	$self->{path} = $path; $self->path ($path);
		1223	$self->init; # pass $1 etc.
		1224	return $self;
		1225	}
		1226	}
		1227
		1228	Carp::carp "unable to resolve path '$path' (base '$base').";
		1229	()
		1230	}
		1231
		1232	sub init {
		1233	my ($self) = @_;
		1234
		1235	$self
		1236	}
		1237
		1238	sub as_string {
		1239	my ($self) = @_;
		1240
		1241	"$self->{path}"
		1242	}
		1243
		1244	# the displayed name, this is a one way mapping
		1245	sub visible_name {
		1246	&as_string
		1247	}
		1248
		1249	# the original (read-only) location
		1250	sub load_path {
		1251	my ($self) = @_;
		1252
		1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1254	}
		1255
		1256	# the temporary/swap location
		1257	sub save_path {
		1258	my ($self) = @_;
		1259
		1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1262	}
		1263
		1264	# the unique path, undef == no special unique path
		1265	sub uniq_path {
		1266	my ($self) = @_;
		1267
		1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1270	}
		1271
		1272	# and all this just because we cannot iterate over
		1273	# all maps in C++...
		1274	sub change_all_map_light {
		1275	my ($change) = @_;
		1276
		1277	$_->change_map_light ($change)
		1278	for grep $_->outdoor, values %cf::MAP;
		1279	}
		1280
		1281	sub unlink_save {
		1282	my ($self) = @_;
		1283
		1284	utf8::encode (my $save = $self->save_path);
		1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1286	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1287	}
		1288
		1289	sub load_header_from($) {
		1290	my ($self, $path) = @_;
		1291
		1292	utf8::encode $path;
		1293	aio_open $path, O_RDONLY, 0
		1294	or return;
		1295
		1296	$self->_load_header ($path)
		1297	or return;
		1298
		1299	$self->{load_path} = $path;
		1300
		1301	1
		1302	}
		1303
		1304	sub load_header_orig {
		1305	my ($self) = @_;
		1306
		1307	$self->load_header_from ($self->load_path)
		1308	}
		1309
		1310	sub load_header_temp {
		1311	my ($self) = @_;
		1312
		1313	$self->load_header_from ($self->save_path)
		1314	}
		1315
		1316	sub prepare_temp {
		1317	my ($self) = @_;
		1318
		1319	$self->last_access ((delete $self->{last_access})
		1320	|| $cf::RUNTIME); #d#
		1321	# safety
		1322	$self->{instantiate_time} = $cf::RUNTIME
		1323	if $self->{instantiate_time} > $cf::RUNTIME;
		1324	}
		1325
		1326	sub prepare_orig {
		1327	my ($self) = @_;
		1328
		1329	$self->{load_original} = 1;
		1330	$self->{instantiate_time} = $cf::RUNTIME;
		1331	$self->last_access ($cf::RUNTIME);
		1332	$self->instantiate;
		1333	}
		1334
		1335	sub load_header {
		1336	my ($self) = @_;
		1337
		1338	if ($self->load_header_temp) {
		1339	$self->prepare_temp;
		1340	} else {
		1341	$self->load_header_orig
		1342	or return;
		1343	$self->prepare_orig;
		1344	}
		1345
		1346	1
		1347	}
		1348
		1349	sub find;
		1350	sub find {
		1351	my ($path, $origin) = @_;
		1352
		1353	$path = normalise $path, $origin && $origin->path;
		1354
		1355	cf::lock_wait "map_find:$path";
		1356
		1357	$cf::MAP{$path} || do {
		1358	my $guard = cf::lock_acquire "map_find:$path";
		1359	my $map = new_from_path cf::map $path
		1360	or return;
		1361
		1362	$map->{last_save} = $cf::RUNTIME;
		1363
		1364	$map->load_header
		1365	or return;
		1366
		1367	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1368	# doing this can freeze the server in a sync job, obviously
		1369	#$cf::WAIT_FOR_TICK->wait;
		1370	$map->reset;
		1371	undef $guard;
		1372	return find $path;
		1373	}
		1374
		1375	$cf::MAP{$path} = $map
		1376	}
		1377	}
		1378
		1379	sub pre_load { }
		1380	sub post_load { }
		1381
		1382	sub load {
		1383	my ($self) = @_;
		1384
		1385	local $self->{deny_reset} = 1; # loading can take a long time
		1386
		1387	my $path = $self->{path};
		1388	my $guard = cf::lock_acquire "map_load:$path";
		1389
		1390	return if $self->in_memory != cf::MAP_SWAPPED;
		1391
		1392	$self->in_memory (cf::MAP_LOADING);
		1393
		1394	$self->alloc;
		1395
		1396	$self->pre_load;
		1397
		1398	$self->_load_objects ($self->{load_path}, 1)
		1399	or return;
		1400
		1401	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1402	if delete $self->{load_original};
		1403
		1404	if (my $uniq = $self->uniq_path) {
		1405	utf8::encode $uniq;
		1406	if (aio_open $uniq, O_RDONLY, 0) {
		1407	$self->clear_unique_items;
		1408	$self->_load_objects ($uniq, 0);
		1409	}
		1410	}
		1411
		1412	Coro::cede;
		1413
		1414	# now do the right thing for maps
		1415	$self->link_multipart_objects;
		1416
		1417	unless ($self->{deny_activate}) {
		1418	$self->decay_objects;
		1419	$self->fix_auto_apply;
		1420	$self->update_buttons;
		1421	Coro::cede;
		1422	$self->set_darkness_map;
		1423	$self->difficulty ($self->estimate_difficulty)
		1424	unless $self->difficulty;
		1425	Coro::cede;
		1426	$self->activate;
		1427	}
		1428
		1429	$self->post_load;
		1430
		1431	$self->in_memory (cf::MAP_IN_MEMORY);
		1432	}
		1433
		1434	sub customise_for {
		1435	my ($self, $ob) = @_;
		1436
		1437	return find "~" . $ob->name . "/" . $self->{path}
		1438	if $self->per_player;
		1439
		1440	$self
		1441	}
		1442
		1443	# find and load all maps in the 3x3 area around a map
		1444	sub load_diag {
738	my ($map) = @_;	1445	my ($map) = @_;
739		1446
740	my $path = $map->tmpname;	1447	my @diag; # diagonal neighbours
741	defined $path or return;
742		1448
743	unlink "$path.pst";	1449	for (0 .. 3) {
744	};	1450	my $neigh = $map->tile_path ($_)
		1451	or next;
		1452	$neigh = find $neigh, $map
		1453	or next;
		1454	$neigh->load;
745		1455
746	attach_to_maps prio => -10000, package => cf::mapsupport::;	1456	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1457	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1458	}
747		1459
748	#############################################################################	1460	for (@diag) {
749	# load/save perl data associated with player->ob objects	1461	my $neigh = find @$_
750		1462	or next;
751	sub all_objects(@) {	1463	$neigh->load;
752	@_, map all_objects ($_->inv), @_	1464	}
753	}	1465	}
754		1466
755	# TODO: compatibility cruft, remove when no longer needed	1467	sub find_sync {
756	attach_to_players	1468	my ($path, $origin) = @_;
757	on_load => sub {
758	my ($pl, $path) = @_;
759		1469
760	for my $o (all_objects $pl->ob) {	1470	cf::sync_job { find $path, $origin }
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1471	}
762	$o->set_ob_key_value ("_perl_data");
763		1472
764	%$o = %{ Storable::thaw pack "H*", $value };	1473	sub do_load_sync {
		1474	my ($map) = @_;
		1475
		1476	cf::sync_job { $map->load };
		1477	}
		1478
		1479	our %MAP_PREFETCH;
		1480	our $MAP_PREFETCHER = undef;
		1481
		1482	sub find_async {
		1483	my ($path, $origin) = @_;
		1484
		1485	$path = normalise $path, $origin && $origin->{path};
		1486
		1487	if (my $map = $cf::MAP{$path}) {
		1488	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1489	}
		1490
		1491	undef $MAP_PREFETCH{$path};
		1492	$MAP_PREFETCHER ||= cf::async {
		1493	while (%MAP_PREFETCH) {
		1494	for my $path (keys %MAP_PREFETCH) {
		1495	my $map = find $path
		1496	or next;
		1497	$map->load;
		1498
		1499	delete $MAP_PREFETCH{$path};
765	}	1500	}
766	}	1501	}
		1502	undef $MAP_PREFETCHER;
		1503	};
		1504	$MAP_PREFETCHER->prio (6);
		1505
		1506	()
		1507	}
		1508
		1509	sub save {
		1510	my ($self) = @_;
		1511
		1512	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1513
		1514	$self->{last_save} = $cf::RUNTIME;
		1515
		1516	return unless $self->dirty;
		1517
		1518	my $save = $self->save_path; utf8::encode $save;
		1519	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1520
		1521	$self->{load_path} = $save;
		1522
		1523	return if $self->{deny_save};
		1524
		1525	local $self->{last_access} = $self->last_access;#d#
		1526
		1527	cf::async {
		1528	$_->contr->save for $self->players;
		1529	};
		1530
		1531	if ($uniq) {
		1532	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		1533	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		1534	} else {
		1535	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
767	},	1536	}
768	;	1537	}
769		1538
770	#############################################################################	1539	sub swap_out {
		1540	my ($self) = @_;
771		1541
772	=head2 CORE EXTENSIONS	1542	# save first because save cedes
		1543	$self->save;
773		1544
774	Functions and methods that extend core crossfire objects.	1545	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1546
		1547	return if $self->players;
		1548	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1549	return if $self->{deny_save};
		1550
		1551	$self->clear;
		1552	$self->in_memory (cf::MAP_SWAPPED);
		1553	}
		1554
		1555	sub reset_at {
		1556	my ($self) = @_;
		1557
		1558	# TODO: safety, remove and allow resettable per-player maps
		1559	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1560	return 1e99 if $self->{deny_reset};
		1561
		1562	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1563	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1564
		1565	$time + $to
		1566	}
		1567
		1568	sub should_reset {
		1569	my ($self) = @_;
		1570
		1571	$self->reset_at <= $cf::RUNTIME
		1572	}
		1573
		1574	sub reset {
		1575	my ($self) = @_;
		1576
		1577	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1578
		1579	return if $self->players;
		1580	return if $self->isa ("ext::map_per_player");#d#
		1581
		1582	warn "resetting map ", $self->path;#d#
		1583
		1584	delete $cf::MAP{$self->path};
		1585
		1586	$self->in_memory (cf::MAP_SWAPPED);
		1587	$self->clear;
		1588
		1589	$_->clear_links_to ($self) for values %cf::MAP;
		1590
		1591	$self->unlink_save;
		1592	$self->destroy;
		1593	}
		1594
		1595	my $nuke_counter = "aaaa";
		1596
		1597	sub nuke {
		1598	my ($self) = @_;
		1599
		1600	delete $cf::MAP{$self->path};
		1601
		1602	$self->unlink_save;
		1603
		1604	bless $self, "cf::map";
		1605	delete $self->{deny_reset};
		1606	$self->{deny_save} = 1;
		1607	$self->reset_timeout (1);
		1608	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1609
		1610	$cf::MAP{$self->path} = $self;
		1611
		1612	$self->reset; # polite request, might not happen
		1613	}
		1614
		1615	=item cf::map::unique_maps
		1616
		1617	Returns an arrayref of paths of all shared maps that have
		1618	instantiated unique items. May block.
		1619
		1620	=cut
		1621
		1622	sub unique_maps() {
		1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
		1624	or return;
		1625
		1626	my @paths;
		1627
		1628	for (@$files) {
		1629	utf8::decode $_;
		1630	next if /\.pst$/;
		1631	next unless /^$PATH_SEP/o;
		1632
		1633	s/\.map$//;
		1634	push @paths, $_;
		1635	}
		1636
		1637	\@paths
		1638	}
		1639
		1640	package cf;
		1641
		1642	=back
		1643
		1644	=head3 cf::object
		1645
		1646	=cut
		1647
		1648	package cf::object;
775		1649
776	=over 4	1650	=over 4
777		1651
778	=item cf::player::exists $login	1652	=item $ob->inv_recursive
779		1653
780	Returns true when the given account exists.	1654	Returns the inventory of the object _and_ their inventories, recursively.
781		1655
782	=cut	1656	=cut
783		1657
784	sub cf::player::exists($) {	1658	sub inv_recursive_;
785	cf::player::find $_[0]	1659	sub inv_recursive_ {
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1660	map { $_, inv_recursive_ $_->inv } @_
787	}	1661	}
		1662
		1663	sub inv_recursive {
		1664	inv_recursive_ inv $_[0]
		1665	}
		1666
		1667	package cf;
		1668
		1669	=back
		1670
		1671	=head3 cf::object::player
		1672
		1673	=over 4
788		1674
789	=item $player_object->reply ($npc, $msg[, $flags])	1675	=item $player_object->reply ($npc, $msg[, $flags])
790		1676
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1677	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
792	can be C<undef>. Does the right thing when the player is currently in a	1678	can be C<undef>. Does the right thing when the player is currently in a
…		…
794		1680
795	=cut	1681	=cut
796		1682
797	# rough implementation of a future "reply" method that works	1683	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	1684	# with dialog boxes.
		1685	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	1686	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	1687	my ($self, $npc, $msg, $flags) = @_;
801		1688
802	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1689	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
803		1690
…		…
807	$msg = $npc->name . " says: $msg" if $npc;	1694	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	1695	$self->message ($msg, $flags);
809	}	1696	}
810	}	1697	}
811		1698
812	=item $player->ext_reply ($msgid, $msgtype, %msg)
813
814	Sends an ext reply to the player.
815
816	=cut
817
818	sub cf::player::ext_reply($$$%) {
819	my ($self, $id, %msg) = @_;
820
821	$msg{msgid} = $id;
822
823	$self->send ("ext " . to_json \%msg);
824	}
825
826	=item $player_object->may ("access")	1699	=item $player_object->may ("access")
827		1700
828	Returns wether the given player is authorized to access resource "access"	1701	Returns wether the given player is authorized to access resource "access"
829	(e.g. "command_wizcast").	1702	(e.g. "command_wizcast").
830		1703
…		…
837	(ref $cf::CFG{"may_$access"}	1710	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1711	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	1712	: $cf::CFG{"may_$access"})
840	}	1713	}
841		1714
842	=cut	1715	=item $player_object->enter_link
843		1716
844	#############################################################################	1717	Freezes the player and moves him/her to a special map (C<{link}>).
		1718
		1719	The player should be reasonably safe there for short amounts of time. You
		1720	I<MUST> call C<leave_link> as soon as possible, though.
		1721
		1722	Will never block.
		1723
		1724	=item $player_object->leave_link ($map, $x, $y)
		1725
		1726	Moves the player out of the special C<{link}> map onto the specified
		1727	map. If the map is not valid (or omitted), the player will be moved back
		1728	to the location he/she was before the call to C<enter_link>, or, if that
		1729	fails, to the emergency map position.
		1730
		1731	Might block.
		1732
		1733	=cut
		1734
		1735	sub link_map {
		1736	unless ($LINK_MAP) {
		1737	$LINK_MAP = cf::map::find "{link}"
		1738	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1739	$LINK_MAP->load;
		1740	}
		1741
		1742	$LINK_MAP
		1743	}
		1744
		1745	sub cf::object::player::enter_link {
		1746	my ($self) = @_;
		1747
		1748	$self->deactivate_recursive;
		1749
		1750	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1751
		1752	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1753	if $self->map;
		1754
		1755	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		1756	}
		1757
		1758	sub cf::object::player::leave_link {
		1759	my ($self, $map, $x, $y) = @_;
		1760
		1761	my $link_pos = delete $self->{_link_pos};
		1762
		1763	unless ($map) {
		1764	# restore original map position
		1765	($map, $x, $y) = @{ $link_pos || [] };
		1766	$map = cf::map::find $map;
		1767
		1768	unless ($map) {
		1769	($map, $x, $y) = @$EMERGENCY_POSITION;
		1770	$map = cf::map::find $map
		1771	or die "FATAL: cannot load emergency map\n";
		1772	}
		1773	}
		1774
		1775	($x, $y) = (-1, -1)
		1776	unless (defined $x) && (defined $y);
		1777
		1778	# use -1 or undef as default coordinates, not 0, 0
		1779	($x, $y) = ($map->enter_x, $map->enter_y)
		1780	if $x <=0 && $y <= 0;
		1781
		1782	$map->load;
		1783	$map->load_diag;
		1784
		1785	return unless $self->contr->active;
		1786	$self->activate_recursive;
		1787	$self->enter_map ($map, $x, $y);
		1788	}
		1789
		1790	cf::player->attach (
		1791	on_logout => sub {
		1792	my ($pl) = @_;
		1793
		1794	# abort map switching before logout
		1795	if ($pl->ob->{_link_pos}) {
		1796	cf::sync_job {
		1797	$pl->ob->leave_link
		1798	};
		1799	}
		1800	},
		1801	on_login => sub {
		1802	my ($pl) = @_;
		1803
		1804	# try to abort aborted map switching on player login :)
		1805	# should happen only on crashes
		1806	if ($pl->ob->{_link_pos}) {
		1807	$pl->ob->enter_link;
		1808	(async {
		1809	# we need this sleep as the login has a concurrent enter_exit running
		1810	# and this sleep increases chances of the player not ending up in scorn
		1811	$pl->ob->reply (undef,
		1812	"There was an internal problem at your last logout, "
		1813	. "the server will try to bring you to your intended destination in a second.",
		1814	cf::NDI_RED);
		1815	Coro::Timer::sleep 1;
		1816	$pl->ob->leave_link;
		1817	})->prio (2);
		1818	}
		1819	},
		1820	);
		1821
		1822	=item $player_object->goto ($path, $x, $y)
		1823
		1824	=cut
		1825
		1826	sub cf::object::player::goto {
		1827	my ($self, $path, $x, $y) = @_;
		1828
		1829	$self->enter_link;
		1830
		1831	(async {
		1832	my $map = eval {
		1833	my $map = cf::map::find $path;
		1834	$map = $map->customise_for ($self) if $map;
		1835	$map
		1836	} or
		1837	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1838
		1839	$self->leave_link ($map, $x, $y);
		1840	})->prio (1);
		1841	}
		1842
		1843	=item $player_object->enter_exit ($exit_object)
		1844
		1845	=cut
		1846
		1847	sub parse_random_map_params {
		1848	my ($spec) = @_;
		1849
		1850	my $rmp = { # defaults
		1851	xsize => (cf::rndm 15, 40),
		1852	ysize => (cf::rndm 15, 40),
		1853	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1854	#layout => string,
		1855	};
		1856
		1857	for (split /\n/, $spec) {
		1858	my ($k, $v) = split /\s+/, $_, 2;
		1859
		1860	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1861	}
		1862
		1863	$rmp
		1864	}
		1865
		1866	sub prepare_random_map {
		1867	my ($exit) = @_;
		1868
		1869	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1870
		1871	# all this does is basically replace the /! path by
		1872	# a new random map path (?random/...) with a seed
		1873	# that depends on the exit object
		1874
		1875	my $rmp = parse_random_map_params $exit->msg;
		1876
		1877	if ($exit->map) {
		1878	$rmp->{region} = $exit->region->name;
		1879	$rmp->{origin_map} = $exit->map->path;
		1880	$rmp->{origin_x} = $exit->x;
		1881	$rmp->{origin_y} = $exit->y;
		1882	}
		1883
		1884	$rmp->{random_seed} ||= $exit->random_seed;
		1885
		1886	my $data = cf::to_json $rmp;
		1887	my $md5 = Digest::MD5::md5_hex $data;
		1888	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1889
		1890	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1891	aio_write $fh, 0, (length $data), $data, 0;
		1892	undef $fh;
		1893	aio_rename "$meta~", $meta;
		1894
		1895	$exit->slaying ("?random/$md5");
		1896	$exit->msg (undef);
		1897	}
		1898	}
		1899
		1900	sub cf::object::player::enter_exit {
		1901	my ($self, $exit) = @_;
		1902
		1903	return unless $self->type == cf::PLAYER;
		1904
		1905	if ($exit->slaying eq "/!") {
		1906	#TODO: this should de-fi-ni-te-ly not be a sync-job
		1907	cf::sync_job { prepare_random_map $exit };
		1908	}
		1909
		1910	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		1911	my $hp = $exit->stats->hp;
		1912	my $sp = $exit->stats->sp;
		1913
		1914	$self->enter_link;
		1915
		1916	(async {
		1917	$self->deactivate_recursive; # just to be sure
		1918	unless (eval {
		1919	$self->goto ($slaying, $hp, $sp);
		1920
		1921	1;
		1922	}) {
		1923	$self->message ("Something went wrong deep within the crossfire server. "
		1924	. "I'll try to bring you back to the map you were before. "
		1925	. "Please report this to the dungeon master!",
		1926	cf::NDI_UNIQUE | cf::NDI_RED);
		1927
		1928	warn "ERROR in enter_exit: $@";
		1929	$self->leave_link;
		1930	}
		1931	})->prio (1);
		1932	}
		1933
		1934	=head3 cf::client
		1935
		1936	=over 4
		1937
		1938	=item $client->send_drawinfo ($text, $flags)
		1939
		1940	Sends a drawinfo packet to the client. Circumvents output buffering so
		1941	should not be used under normal circumstances.
		1942
		1943	=cut
		1944
		1945	sub cf::client::send_drawinfo {
		1946	my ($self, $text, $flags) = @_;
		1947
		1948	utf8::encode $text;
		1949	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1950	}
		1951
		1952
		1953	=item $success = $client->query ($flags, "text", \&cb)
		1954
		1955	Queues a query to the client, calling the given callback with
		1956	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1957	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1958
		1959	Queries can fail, so check the return code. Or don't, as queries will become
		1960	reliable at some point in the future.
		1961
		1962	=cut
		1963
		1964	sub cf::client::query {
		1965	my ($self, $flags, $text, $cb) = @_;
		1966
		1967	return unless $self->state == ST_PLAYING
		1968	|| $self->state == ST_SETUP
		1969	|| $self->state == ST_CUSTOM;
		1970
		1971	$self->state (ST_CUSTOM);
		1972
		1973	utf8::encode $text;
		1974	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1975
		1976	$self->send_packet ($self->{query_queue}[0][0])
		1977	if @{ $self->{query_queue} } == 1;
		1978	}
		1979
		1980	cf::client->attach (
		1981	on_reply => sub {
		1982	my ($ns, $msg) = @_;
		1983
		1984	# this weird shuffling is so that direct followup queries
		1985	# get handled first
		1986	my $queue = delete $ns->{query_queue}
		1987	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1988
		1989	(shift @$queue)->[1]->($msg);
		1990
		1991	push @{ $ns->{query_queue} }, @$queue;
		1992
		1993	if (@{ $ns->{query_queue} } == @$queue) {
		1994	if (@$queue) {
		1995	$ns->send_packet ($ns->{query_queue}[0][0]);
		1996	} else {
		1997	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1998	}
		1999	}
		2000	},
		2001	);
		2002
		2003	=item $client->async (\&cb)
		2004
		2005	Create a new coroutine, running the specified callback. The coroutine will
		2006	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2007	or loss of connection).
		2008
		2009	=cut
		2010
		2011	sub cf::client::async {
		2012	my ($self, $cb) = @_;
		2013
		2014	my $coro = &Coro::async ($cb);
		2015
		2016	$coro->on_destroy (sub {
		2017	delete $self->{_coro}{$coro+0};
		2018	});
		2019
		2020	$self->{_coro}{$coro+0} = $coro;
		2021
		2022	$coro
		2023	}
		2024
		2025	cf::client->attach (
		2026	on_destroy => sub {
		2027	my ($ns) = @_;
		2028
		2029	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2030	},
		2031	);
		2032
		2033	=back
		2034
845		2035
846	=head2 SAFE SCRIPTING	2036	=head2 SAFE SCRIPTING
847		2037
848	Functions that provide a safe environment to compile and execute	2038	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	2039	snippets of perl code without them endangering the safety of the server
…		…
864		2054
865	=pod	2055	=pod
866		2056
867	The following fucntions and emthods are available within a safe environment:	2057	The following fucntions and emthods are available within a safe environment:
868		2058
869	cf::object contr pay_amount pay_player	2059	cf::object contr pay_amount pay_player map
870	cf::object::player player	2060	cf::object::player player
871	cf::player peaceful	2061	cf::player peaceful
		2062	cf::map trigger
872		2063
873	=cut	2064	=cut
874		2065
875	for (	2066	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	2067	["cf::object" => qw(contr pay_amount pay_player map)],
877	["cf::object::player" => qw(player)],	2068	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	2069	["cf::player" => qw(peaceful)],
		2070	["cf::map" => qw(trigger)],
879	) {	2071	) {
880	no strict 'refs';	2072	no strict 'refs';
881	my ($pkg, @funs) = @$_;	2073	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2074	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	2075	for @funs;
…		…
999		2191
1000	{	2192	{
1001	my $path = cf::localdir . "/database.pst";	2193	my $path = cf::localdir . "/database.pst";
1002		2194
1003	sub db_load() {	2195	sub db_load() {
1004	warn "loading database $path\n";#d# remove later
1005	$DB = stat $path ? Storable::retrieve $path : { };	2196	$DB = stat $path ? Storable::retrieve $path : { };
1006	}	2197	}
1007		2198
1008	my $pid;	2199	my $pid;
1009		2200
1010	sub db_save() {	2201	sub db_save() {
1011	warn "saving database $path\n";#d# remove later
1012	waitpid $pid, 0 if $pid;	2202	waitpid $pid, 0 if $pid;
1013	if (0 == ($pid = fork)) {	2203	if (0 == ($pid = fork)) {
1014	$DB->{_meta}{version} = 1;	2204	$DB->{_meta}{version} = 1;
1015	Storable::nstore $DB, "$path~";	2205	Storable::nstore $DB, "$path~";
1016	rename "$path~", $path;	2206	rename "$path~", $path;
…		…
1023	sub db_sync() {	2213	sub db_sync() {
1024	db_save if $dirty;	2214	db_save if $dirty;
1025	undef $dirty;	2215	undef $dirty;
1026	}	2216	}
1027		2217
1028	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {	2218	my $idle = Event->idle (
1029	db_sync;	2219	reentrant => 0,
		2220	min => 10,
		2221	max => 20,
		2222	repeat => 0,
		2223	data => WF_AUTOCANCEL,
		2224	cb => \&db_sync,
1030	});	2225	);
1031		2226
1032	sub db_dirty() {	2227	sub db_dirty() {
1033	$dirty = 1;	2228	$dirty = 1;
1034	$idle->start;	2229	$idle->start;
1035	}	2230	}
…		…
1047	$DB->{$_[0]} = $_[1];	2242	$DB->{$_[0]} = $_[1];
1048	}	2243	}
1049	db_dirty;	2244	db_dirty;
1050	}	2245	}
1051		2246
1052	attach_global	2247	cf::global->attach (
1053	prio => 10000,	2248	prio => 10000,
1054	on_cleanup => sub {	2249	on_cleanup => sub {
1055	db_sync;	2250	db_sync;
1056	},	2251	},
1057	;	2252	);
1058	}	2253	}
1059		2254
1060	#############################################################################	2255	#############################################################################
1061	# the server's main()	2256	# the server's main()
1062		2257
…		…
1064	open my $fh, "<:utf8", cf::confdir . "/config"	2259	open my $fh, "<:utf8", cf::confdir . "/config"
1065	or return;	2260	or return;
1066		2261
1067	local $/;	2262	local $/;
1068	*CFG = YAML::Syck::Load <$fh>;	2263	*CFG = YAML::Syck::Load <$fh>;
		2264
		2265	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2266
		2267	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2268	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2269
		2270	if (exists $CFG{mlockall}) {
		2271	eval {
		2272	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2273	and die "WARNING: m(un)lockall failed: $!\n";
		2274	};
		2275	warn $@ if $@;
		2276	}
1069	}	2277	}
1070		2278
1071	sub main {	2279	sub main {
		2280	# we must not ever block the main coroutine
		2281	local $Coro::idle = sub {
		2282	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2283	(async {
		2284	Event::one_event;
		2285	})->prio (Coro::PRIO_MAX);
		2286	};
		2287
1072	cfg_load;	2288	cfg_load;
1073	db_load;	2289	db_load;
1074	load_extensions;	2290	load_extensions;
		2291
		2292	$TICK_WATCHER->start;
1075	Event::loop;	2293	Event::loop;
1076	}	2294	}
1077		2295
1078	#############################################################################	2296	#############################################################################
1079	# initialisation	2297	# initialisation and cleanup
1080		2298
		2299	# install some emergency cleanup handlers
		2300	BEGIN {
		2301	for my $signal (qw(INT HUP TERM)) {
		2302	Event->signal (
		2303	reentrant => 0,
		2304	data => WF_AUTOCANCEL,
		2305	signal => $signal,
		2306	prio => 0,
		2307	cb => sub {
		2308	cf::cleanup "SIG$signal";
		2309	},
		2310	);
		2311	}
		2312	}
		2313
		2314	sub emergency_save() {
		2315	my $freeze_guard = cf::freeze_mainloop;
		2316
		2317	warn "enter emergency perl save\n";
		2318
		2319	cf::sync_job {
		2320	# use a peculiar iteration method to avoid tripping on perl
		2321	# refcount bugs in for. also avoids problems with players
		2322	# and maps saved/destroyed asynchronously.
		2323	warn "begin emergency player save\n";
		2324	for my $login (keys %cf::PLAYER) {
		2325	my $pl = $cf::PLAYER{$login} or next;
		2326	$pl->valid or next;
		2327	$pl->save;
		2328	}
		2329	warn "end emergency player save\n";
		2330
		2331	warn "begin emergency map save\n";
		2332	for my $path (keys %cf::MAP) {
		2333	my $map = $cf::MAP{$path} or next;
		2334	$map->valid or next;
		2335	$map->save;
		2336	}
		2337	warn "end emergency map save\n";
		2338	};
		2339
		2340	warn "leave emergency perl save\n";
		2341	}
		2342
1081	sub _perl_reload(&) {	2343	sub reload() {
1082	my ($msg) = @_;	2344	# can/must only be called in main
		2345	if ($Coro::current != $Coro::main) {
		2346	warn "can only reload from main coroutine";
		2347	return;
		2348	}
1083		2349
1084	$msg->("reloading...");	2350	warn "reloading...";
		2351
		2352	warn "cancelling server ticker";
		2353	$TICK_WATCHER->cancel;
		2354
		2355	cf::emergency_save;
1085		2356
1086	eval {	2357	eval {
1087	# cancel all watchers	2358	# if anything goes wrong in here, we should simply crash as we already saved
		2359
		2360	warn "syncing database to disk";
		2361	cf::db_sync;
		2362
		2363	warn "cancelling all WF_AUTOCANCEL watchers";
1088	for (Event::all_watchers) {	2364	for (Event::all_watchers) {
1089	$_->cancel if $_->data & WF_AUTOCANCEL;	2365	$_->cancel if $_->data & WF_AUTOCANCEL;
1090	}	2366	}
1091		2367
1092	# unload all extensions	2368	warn "flushing outstanding aio requests";
1093	for (@exts) {	2369	for (;;) {
1094	$msg->("unloading <$_>");	2370	IO::AIO::flush;
1095	unload_extension $_;	2371	Coro::cede;
		2372	last unless IO::AIO::nreqs;
		2373	warn "iterate...";
		2374	}
		2375
		2376	warn "cancelling all extension coros";
		2377	$_->cancel for values %EXT_CORO;
		2378	%EXT_CORO = ();
		2379
		2380	warn "removing commands";
		2381	%COMMAND = ();
		2382
		2383	warn "removing ext commands";
		2384	%EXTCMD = ();
		2385
		2386	warn "unloading/nuking all extensions";
		2387	for my $pkg (@EXTS) {
		2388	warn "... unloading $pkg";
		2389
		2390	if (my $cb = $pkg->can ("unload")) {
		2391	eval {
		2392	$cb->($pkg);
		2393	1
		2394	} or warn "$pkg unloaded, but with errors: $@";
1096	}	2395	}
1097		2396
		2397	warn "... nuking $pkg";
		2398	Symbol::delete_package $pkg;
		2399	}
		2400
1098	# unload all modules loaded from $LIBDIR	2401	warn "unloading all perl modules loaded from $LIBDIR";
1099	while (my ($k, $v) = each %INC) {	2402	while (my ($k, $v) = each %INC) {
1100	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2403	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1101		2404
1102	$msg->("removing <$k>");	2405	warn "... unloading $k";
1103	delete $INC{$k};	2406	delete $INC{$k};
1104		2407
1105	$k =~ s/\.pm$//;	2408	$k =~ s/\.pm$//;
1106	$k =~ s/\//::/g;	2409	$k =~ s/\//::/g;
1107		2410
…		…
1110	}	2413	}
1111		2414
1112	Symbol::delete_package $k;	2415	Symbol::delete_package $k;
1113	}	2416	}
1114		2417
1115	# sync database to disk
1116	cf::db_sync;
1117
1118	# get rid of safe::, as good as possible	2418	warn "getting rid of safe::, as good as possible";
1119	Symbol::delete_package "safe::$_"	2419	Symbol::delete_package "safe::$_"
1120	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	2420	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1121		2421
1122	# remove register_script_function callbacks
1123	# TODO
1124
1125	# unload cf.pm "a bit"	2422	warn "unloading cf.pm \"a bit\"";
1126	delete $INC{"cf.pm"};	2423	delete $INC{"cf.pm"};
1127		2424
1128	# don't, removes xs symbols, too,	2425	# don't, removes xs symbols, too,
1129	# and global variables created in xs	2426	# and global variables created in xs
1130	#Symbol::delete_package __PACKAGE__;	2427	#Symbol::delete_package __PACKAGE__;
1131		2428
1132	# reload cf.pm	2429	warn "unload completed, starting to reload now";
		2430
1133	$msg->("reloading cf.pm");	2431	warn "reloading cf.pm";
1134	require cf;	2432	require cf;
		2433	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1135		2434
1136	# load config and database again	2435	warn "loading config and database again";
1137	cf::cfg_load;	2436	cf::cfg_load;
1138	cf::db_load;	2437	cf::db_load;
1139		2438
1140	# load extensions	2439	warn "loading extensions";
1141	$msg->("load extensions");
1142	cf::load_extensions;	2440	cf::load_extensions;
1143		2441
1144	# reattach attachments to objects	2442	warn "reattaching attachments to objects/players";
1145	$msg->("reattach");
1146	_global_reattach;	2443	_global_reattach;
		2444	warn "reattaching attachments to maps";
		2445	reattach $_ for values %MAP;
		2446
		2447	warn "restarting server ticker";
		2448
		2449	$TICK_WATCHER->start;
1147	};	2450	};
1148	$msg->($@) if $@;
1149		2451
1150	$msg->("reloaded");	2452	if ($@) {
		2453	warn $@;
		2454	warn "error while reloading, exiting.";
		2455	exit 1;
		2456	}
		2457
		2458	warn "reloaded";
1151	};	2459	};
1152		2460
1153	sub perl_reload() {	2461	our $RELOAD_WATCHER; # used only during reload
1154	_perl_reload {
1155	warn $_[0];
1156	print "$_[0]\n";
1157	};
1158	}
1159		2462
1160	register "<global>", __PACKAGE__;
1161
1162	register_command "perl-reload" => sub {	2463	register_command "reload" => sub {
1163	my ($who, $arg) = @_;	2464	my ($who, $arg) = @_;
1164		2465
1165	if ($who->flag (FLAG_WIZ)) {	2466	if ($who->flag (FLAG_WIZ)) {
1166	_perl_reload {	2467	$who->message ("reloading server.");
1167	warn $_[0];	2468
1168	$who->message ($_[0]);	2469	# doing reload synchronously and two reloads happen back-to-back,
		2470	# coro crashes during coro_state_free->destroy here.
		2471
		2472	$RELOAD_WATCHER ||= Event->timer (
		2473	reentrant => 0,
		2474	after => 0,
		2475	data => WF_AUTOCANCEL,
		2476	cb => sub {
		2477	reload;
		2478	undef $RELOAD_WATCHER;
		2479	},
1169	};	2480	);
1170	}	2481	}
1171	};	2482	};
1172		2483
1173	unshift @INC, $LIBDIR;	2484	unshift @INC, $LIBDIR;
1174		2485
		2486	my $bug_warning = 0;
		2487
1175	$TICK_WATCHER = Event->timer (	2488	$TICK_WATCHER = Event->timer (
		2489	reentrant => 0,
		2490	parked => 1,
1176	prio => 1,	2491	prio => 0,
1177	async => 1,
1178	at => $NEXT_TICK || 1,	2492	at => $NEXT_TICK || $TICK,
1179	data => WF_AUTOCANCEL,	2493	data => WF_AUTOCANCEL,
1180	cb => sub {	2494	cb => sub {
		2495	if ($Coro::current != $Coro::main) {
		2496	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2497	unless ++$bug_warning > 10;
		2498	return;
		2499	}
		2500
		2501	$NOW = Event::time;
		2502
1181	cf::server_tick; # one server iteration	2503	cf::server_tick; # one server iteration
1182		2504	$RUNTIME += $TICK;
1183	my $NOW = Event::time;
1184	$NEXT_TICK += $TICK;	2505	$NEXT_TICK += $TICK;
1185		2506
		2507	$WAIT_FOR_TICK->broadcast;
		2508	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2509
		2510	Event::sweep;
		2511	Coro::cede_notself;
		2512
		2513	# my $AFTER = Event::time;
		2514	# warn $AFTER - $NOW;#d#
		2515
1186	# if we are delayed by four ticks or more, skip them all	2516	# if we are delayed by four ticks or more, skip them all
1187	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2517	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1188		2518
1189	$TICK_WATCHER->at ($NEXT_TICK);	2519	$TICK_WATCHER->at ($NEXT_TICK);
1190	$TICK_WATCHER->start;	2520	$TICK_WATCHER->start;
1191	},	2521	},
1192	);	2522	);
1193		2523
1194	IO::AIO::max_poll_time $TICK * 0.2;	2524	IO::AIO::max_poll_time $TICK * 0.1;
1195		2525
		2526	undef $Coro::AIO::WATCHER;
		2527	$AIO_POLL_WATCHER = Event->io (
		2528	reentrant => 0,
1196	Event->io (fd => IO::AIO::poll_fileno,	2529	fd => IO::AIO::poll_fileno,
1197	poll => 'r',	2530	poll => 'r',
1198	prio => 5,	2531	prio => 6,
1199	data => WF_AUTOCANCEL,	2532	data => WF_AUTOCANCEL,
1200	cb => \&IO::AIO::poll_cb);	2533	cb => \&IO::AIO::poll_cb,
		2534	);
		2535
		2536	$WRITE_RUNTIME_WATCHER = Event->timer (
		2537	reentrant => 0,
		2538	data => WF_AUTOCANCEL,
		2539	after => 1,
		2540	interval => 10,
		2541	prio => 6, # keep it lowest so it acts like a watchdog
		2542	cb => Coro::unblock_sub {
		2543	write_runtime
		2544	or warn "ERROR: unable to write runtime file: $!";
		2545	},
		2546	);
		2547
		2548	END { cf::emergency_save }
1201		2549
1202	1	2550	1
1203		2551

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