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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.47 by root, Sun Aug 27 13:02:04 2006 UTC vs.
Revision 1.186 by root, Sat Jan 20 01:12:39 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 3.4 ();
		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 ();
		24	use YAML::Syck ();
10	use Time::HiRes;	25	use Time::HiRes;
11	use Event;	26
12	$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
13		28
14	use strict;	29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
15		30
16	_reload_1;	31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
		32	$YAML::Syck::ImplicitUnicode = 1;
17		33
		34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		35
18	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
19	our @EVENT;	44	our @EVENT;
20	our %PROP_TYPE;	45	our $LIBDIR = datadir . "/ext";
21	our %PROP_IDX;
22	our $LIBDIR = maps_directory "perl";
23		46
24	our $TICK = MAX_TIME * 1e-6;	47	our $TICK = MAX_TIME * 1e-6;
25	our $TICK_WATCHER;	48	our $TICK_WATCHER;
		49	our $AIO_POLL_WATCHER;
		50	our $WRITE_RUNTIME_WATCHER;
26	our $NEXT_TICK;	51	our $NEXT_TICK;
		52	our $NOW;
		53
		54	our %CFG;
		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
		88	#############################################################################
		89
		90	=head2 GLOBAL VARIABLES
		91
		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.
		102
		103	=item $cf::LIBDIR
		104
		105	The perl library directory, where extensions and cf-specific modules can
		106	be found. It will be added to C<@INC> automatically.
		107
		108	=item $cf::NOW
		109
		110	The time of the last (current) server tick.
		111
		112	=item $cf::TICK
		113
		114	The interval between server ticks, in seconds.
		115
		116	=item %cf::CFG
		117
		118	Configuration for the server, loaded from C</etc/crossfire/config>, or
		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.
		127
		128	=back
		129
		130	=cut
27		131
28	BEGIN {	132	BEGIN {
29	*CORE::GLOBAL::warn = sub {	133	*CORE::GLOBAL::warn = sub {
30	my $msg = join "", @_;	134	my $msg = join "", @_;
		135	utf8::encode $msg;
		136
31	$msg .= "\n"	137	$msg .= "\n"
32	unless $msg =~ /\n$/;	138	unless $msg =~ /\n$/;
33		139
34	print STDERR "cfperl: $msg";
35	LOG llevError, "cfperl: $msg";	140	LOG llevError, $msg;
36	};	141	};
37	}	142	}
38		143
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
40		145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
41	# generate property mutators	146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
42	sub prop_gen {	147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
43	my ($prefix, $class) = @_;	148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
44
45	no strict 'refs';
46
47	for my $prop (keys %PROP_TYPE) {
48	$prop =~ /^\Q$prefix\E_(.*$)/ or next;
49	my $sub = lc $1;
50
51	my $type = $PROP_TYPE{$prop};
52	my $idx = $PROP_IDX {$prop};
53
54	*{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {
55	$_[0]->get_property ($type, $idx)
56	};
57
58	*{"$class\::set_$sub"} = sub {
59	$_[0]->set_property ($type, $idx, $_[1]);
60	} unless $ignore_set{$prop};
61	}
62	}
63
64	# auto-generate most of the API
65
66	prop_gen OBJECT_PROP => "cf::object";
67	# CFAPI_OBJECT_ANIMATION?
68	prop_gen PLAYER_PROP => "cf::object::player";
69
70	prop_gen MAP_PROP => "cf::map";
71	prop_gen ARCH_PROP => "cf::arch";
72
73	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
74		150
75	# 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
76	# within the Safe compartment.	152	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	153	for my $pkg (qw(
		154	cf::global cf::attachable
		155	cf::object cf::object::player
		156	cf::client cf::player
		157	cf::arch cf::living
		158	cf::map cf::party cf::region
		159	)) {
78	no strict 'refs';	160	no strict 'refs';
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	162	}
81		163
82	$Event::DIED = sub {	164	$Event::DIED = sub {
83	warn "error in event callback: @_";	165	warn "error in event callback: @_";
84	};	166	};
85		167
86	my %ext_pkg;	168	=head2 UTILITY FUNCTIONS
87	my @exts;
88	my @hook;
89	my %command;
90	my %extcmd;
91		169
92	#############################################################################	170	=over 4
93	# utility functions	171
		172	=item dumpval $ref
		173
		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	}
94		194
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	195	use JSON::Syck (); # TODO# replace by JSON::PC once working
		196
		197	=item $ref = cf::from_json $json
		198
		199	Converts a JSON string into the corresponding perl data structure.
		200
		201	=cut
96		202
97	sub from_json($) {	203	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs	204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]	205	JSON::Syck::Load $_[0]
100	}	206	}
101		207
		208	=item $json = cf::to_json $ref
		209
		210	Converts a perl data structure into its JSON representation.
		211
		212	=cut
		213
102	sub to_json($) {	214	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]	216	JSON::Syck::Dump $_[0]
105	}	217	}
106		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
		373	=back
		374
		375	=cut
		376
107	#############################################################################	377	#############################################################################
108	# "new" plug-in system
109		378
110	=item $object->attach ($attachment, ...)	379	=head2 ATTACHABLE OBJECTS
111		380
112	Attach a pre-registered attachment to an object.	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.
113		384
114	=item $player->attach ($attachment, ...)	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+).
115		388
116	Attach a pre-registered attachment to a player.	389	=over 4
117		390
118	=item $map->attach ($attachment, ...) # not yet persistent	391	=item $attachable->attach ($attachment, key => $value...)
119		392
120	Attach a pre-registered attachment to a map.	393	=item $attachable->detach ($attachment)
121		394
122	=item cf::attach_global ...	395	Attach/detach a pre-registered attachment to a specific object and give it
		396	the specified key/value pairs as arguments.
123		397
124	Attach handlers for global events.	398	Example, attach a minesweeper attachment to the given object, making it a
		399	10x10 minesweeper game:
125		400
126	This and all following C<attach_*>-functions expect any number of the	401	$obj->attach (minesweeper => width => 10, height => 10);
127	following handler/hook descriptions:	402
		403	=item $bool = $attachable->attached ($name)
		404
		405	Checks wether the named attachment is currently attached to the object.
		406
		407	=item cf::CLASS->attach ...
		408
		409	=item cf::CLASS->detach ...
		410
		411	Define an anonymous attachment and attach it to all objects of the given
		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:
128		445
129	=over 4	446	=over 4
130		447
131	=item prio => $number	448	=item prio => $number
132		449
…		…
134	by another C<prio> setting). Lower priority handlers get executed	451	by another C<prio> setting). Lower priority handlers get executed
135	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
136	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
137	unless you know what you are doing.	454	unless you know what you are doing.
138		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
139	=item on_I<event> => \&cb	462	=item on_I<event> => \&cb
140		463
141	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
142	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
143	handlers are recognised generally depends on the type of object these	466	handlers are recognised generally depends on the type of object these
…		…
152	package and register them. Only handlers for eevents supported by the	475	package and register them. Only handlers for eevents supported by the
153	object/class are recognised.	476	object/class are recognised.
154		477
155	=back	478	=back
156		479
157	=item cf::attach_to_type $object_type, $subtype, ...	480	Example, define an attachment called "sockpuppet" that calls the given
		481	event handler when a monster attacks:
158		482
159	Attach handlers for a specific object type (e.g. TRANSPORT) and	483	cf::object::attachment sockpuppet =>
160	subtype. If C<$subtype> is zero or undef, matches all objects of the given	484	on_skill_attack => sub {
161	type.	485	my ($self, $victim) = @_;
		486	...
		487	}
		488	}
162		489
163	=item cf::attach_to_objects ...	490	=item $attachable->valid
164		491
165	Attach handlers to all objects. Do not use this except for debugging or	492	Just because you have a perl object does not mean that the corresponding
166	very rare events, as handlers are (obviously) called for I<all> objects in	493	C-level object still exists. If you try to access an object that has no
167	the game.	494	valid C counterpart anymore you get an exception at runtime. This method
168		495	can be used to test for existence of the C object part without causing an
169	=item cf::attach_to_players ...	496	exception.
170
171	Attach handlers to all players.
172
173	=item cf::attach_to_maps ...
174
175	Attach handlers to all maps.
176
177	=item cf:register_attachment $name, ...
178		497
179	=cut	498	=cut
180		499
181	# the following variables are defined in .xs and must not be re-created	500	# the following variables are defined in .xs and must not be re-created
182	our @CB_GLOBAL = (); # registry for all global events	501	our @CB_GLOBAL = (); # registry for all global events
		502	our @CB_ATTACHABLE = (); # registry for all attachables
183	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	503	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
184	our @CB_PLAYER = ();	504	our @CB_PLAYER = ();
		505	our @CB_CLIENT = ();
185	our @CB_TYPE = (); # registry for type (cf-object class) based events	506	our @CB_TYPE = (); # registry for type (cf-object class) based events
186	our @CB_MAP = ();	507	our @CB_MAP = ();
187		508
188	my %attachment;	509	my %attachment;
189		510
		511	sub cf::attachable::thawer_merge {
		512	# simply override everything except _meta
		513	local $_[0]{_meta};
		514	%{$_[0]} = %{$_[1]};
		515	}
		516
190	sub _attach_cb($\%$$$) {	517	sub _attach_cb($$$$) {
191	my ($registry, $undo, $event, $prio, $cb) = @_;	518	my ($registry, $event, $prio, $cb) = @_;
192		519
193	use sort 'stable';	520	use sort 'stable';
194		521
195	$cb = [$prio, $cb];	522	$cb = [$prio, $cb];
196		523
197	@{$registry->[$event]} = sort	524	@{$registry->[$event]} = sort
198	{ $a->[0] cmp $b->[0] }	525	{ $a->[0] cmp $b->[0] }
199	@{$registry->[$event] || []}, $cb;	526	@{$registry->[$event] || []}, $cb;
200
201	push @{$undo->{cb}}, [$event, $cb];
202	}	527	}
		528
		529	# hack
		530	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
203		531
204	# attach handles attaching event callbacks	532	# attach handles attaching event callbacks
205	# the only thing the caller has to do is pass the correct	533	# the only thing the caller has to do is pass the correct
206	# registry (== where the callback attaches to).	534	# registry (== where the callback attaches to).
207	sub _attach(\@$@) {	535	sub _attach {
208	my ($registry, $klass, @arg) = @_;	536	my ($registry, $klass, @arg) = @_;
209		537
		538	my $object_type;
210	my $prio = 0;	539	my $prio = 0;
211
212	my %undo = (
213	registry => $registry,
214	cb => [],
215	);
216
217	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	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	}
218		546
219	while (@arg) {	547	while (@arg) {
220	my $type = shift @arg;	548	my $type = shift @arg;
221		549
222	if ($type eq "prio") {	550	if ($type eq "prio") {
223	$prio = shift @arg;	551	$prio = shift @arg;
224		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
225	} elsif ($type eq "package") {	562	} elsif ($type eq "package") {
226	my $pkg = shift @arg;	563	my $pkg = shift @arg;
227		564
228	while (my ($name, $id) = each %cb_id) {	565	while (my ($name, $id) = each %cb_id) {
229	if (my $cb = $pkg->can ($name)) {	566	if (my $cb = $pkg->can ($name)) {
230	_attach_cb $registry, %undo, $id, $prio, $cb;	567	_attach_cb $registry, $id, $prio, $cb;
231	}	568	}
232	}	569	}
233		570
234	} elsif (exists $cb_id{$type}) {	571	} elsif (exists $cb_id{$type}) {
235	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;	572	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
236		573
237	} elsif (ref $type) {	574	} elsif (ref $type) {
238	warn "attaching objects not supported, ignoring.\n";	575	warn "attaching objects not supported, ignoring.\n";
239		576
240	} else {	577	} else {
241	shift @arg;	578	shift @arg;
242	warn "attach argument '$type' not supported, ignoring.\n";	579	warn "attach argument '$type' not supported, ignoring.\n";
243	}	580	}
244	}	581	}
245
246	\%undo
247	}	582	}
248		583
249	sub _attach_attachment {	584	sub _object_attach {
250	my ($obj, $name, @args) = @_;	585	my ($obj, $name, %arg) = @_;
251		586
252	my $res;	587	return if exists $obj->{_attachment}{$name};
253		588
254	if (my $attach = $attachment{$name}) {	589	if (my $attach = $attachment{$name}) {
255	my $registry = $obj->registry;	590	my $registry = $obj->registry;
256		591
257	for (@$attach) {	592	for (@$attach) {
258	my ($klass, @attach) = @$_;	593	my ($klass, @attach) = @$_;
259	$res = _attach @$registry, $klass, @attach;	594	_attach $registry, $klass, @attach;
260	}
261
262	if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {
263	for (@$cb) {
264	eval { $_->[1]->($obj, @args); };
265	if ($@) {
266	warn "$@";
267	warn "... while processing '$name' instantiate with args <@args>.\n";
268	}
269	}	595	}
270	}	596
		597	$obj->{$name} = \%arg;
271	} else {	598	} else {
272	warn "object uses attachment '$name' that is not available, postponing.\n";	599	warn "object uses attachment '$name' that is not available, postponing.\n";
273	}	600	}
274		601
275	push @{$obj->{_attachment}}, $name;	602	$obj->{_attachment}{$name} = undef;
276
277	$res->{attachment} = $name;
278	$res
279	}	603	}
280		604
281	sub cf::object::attach {	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 {
282	my ($obj, $name, @args) = @_;	615	my ($obj, $name) = @_;
283		616
284	_attach_attachment $obj, $name, @args;	617	if (ref $obj) {
285	}	618	delete $obj->{_attachment}{$name};
		619	reattach ($obj);
		620	} else {
		621	Carp::croak "cannot, currently, detach class attachments";
		622	}
		623	};
286		624
287	sub cf::player::attach {	625	sub cf::attachable::attached {
288	my ($obj, $name, @args) = @_;	626	my ($obj, $name) = @_;
289		627
290	_attach_attachment KLASS_PLAYER, $obj, $name, @args;	628	exists $obj->{_attachment}{$name}
291	}	629	}
292		630
293	sub cf::map::attach {	631	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
294	my ($obj, $name, @args) = @_;	632	eval "#line " . __LINE__ . " 'cf.pm'
		633	sub cf::\L$klass\E::_attach_registry {
		634	(\\\@CB_$klass, KLASS_$klass)
		635	}
295		636
296	_attach_attachment KLASS_MAP, $obj, $name, @args;	637	sub cf::\L$klass\E::attachment {
297	}
298
299	sub attach_global {
300	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
301	}
302
303	sub attach_to_type {
304	my $type = shift;
305	my $subtype = shift;
306
307	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
308	}
309
310	sub attach_to_objects {
311	_attach @CB_OBJECT, KLASS_OBJECT, @_
312	}
313
314	sub attach_to_players {
315	_attach @CB_PLAYER, KLASS_PLAYER, @_
316	}
317
318	sub attach_to_maps {
319	_attach @CB_MAP, KLASS_MAP, @_
320	}
321
322	sub register_attachment {
323	my $name = shift;	638	my \$name = shift;
324		639
325	$attachment{$name} = [[KLASS_OBJECT, @_]];	640	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		641	}
		642	";
		643	die if $@;
326	}	644	}
327		645
328	our $override;	646	our $override;
329	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
330		648
…		…
344	for (@$callbacks) {	662	for (@$callbacks) {
345	eval { &{$_->[1]} };	663	eval { &{$_->[1]} };
346		664
347	if ($@) {	665	if ($@) {
348	warn "$@";	666	warn "$@";
349	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	667	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
350	override;	668	override;
351	}	669	}
352		670
353	return 1 if $override;	671	return 1 if $override;
354	}	672	}
355		673
356	0	674	0
357	}	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
		687	=back
		688
		689	=cut
358		690
359	#############################################################################	691	#############################################################################
360	# object support	692	# object support
361		693
362	sub instantiate {
363	my ($obj, $data) = @_;
364
365	$data = from_json $data;
366
367	for (@$data) {
368	my ($name, $args) = @$_;
369	attach $obj, $name, @{$args || [] };
370	}
371	}
372
373	# basically do the same as instantiate, without calling instantiate
374	sub reattach {	694	sub reattach {
		695	# basically do the same as instantiate, without calling instantiate
375	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		699
376	my $registry = $obj->registry;	700	my $registry = $obj->registry;
377		701
378	@$registry = ();	702	@$registry = ();
379		703
		704	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		705
380	for my $name (@{ $obj->{_attachment} }) {	706	for my $name (keys %{ $obj->{_attachment} || {} }) {
381	if (my $attach = $attachment{$name}) {	707	if (my $attach = $attachment{$name}) {
382	for (@$attach) {	708	for (@$attach) {
383	my ($klass, @attach) = @$_;	709	my ($klass, @attach) = @$_;
384	_attach @$registry, $klass, @attach;	710	_attach $registry, $klass, @attach;
385	}	711	}
386	} else {	712	} else {
387	warn "object uses attachment '$name' that is not available, postponing.\n";	713	warn "object uses attachment '$name' that is not available, postponing.\n";
388	}	714	}
389	}	715	}
390	}	716	}
391		717
		718	cf::attachable->attach (
		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,
		732	on_clone => sub {
		733	my ($src, $dst) = @_;
		734
		735	@{$dst->registry} = @{$src->registry};
		736
		737	%$dst = %$src;
		738
		739	%{$dst->{_attachment}} = %{$src->{_attachment}}
		740	if exists $src->{_attachment};
		741	},
		742	);
		743
392	sub object_freezer_save {	744	sub object_freezer_save {
393	my ($filename, $objs) = @_;	745	my ($filename, $rdata, $objs) = @_;
394		746
395	$filename .= ".pst";	747	sync_job {
		748	if (length $$rdata) {
		749	warn sprintf "saving %s (%d,%d)\n",
		750	$filename, length $$rdata, scalar @$objs;
396		751
397	if (@$objs) {	752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
398	open my $fh, ">:raw", "$filename~";	753	chmod SAVE_MODE, $fh;
399	chmod $fh, SAVE_MODE;	754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
400	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	755	aio_fsync $fh;
401	close $fh;	756	close $fh;
		757
		758	if (@$objs) {
		759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		760	chmod SAVE_MODE, $fh;
		761	my $data = Storable::nfreeze { version => 1, objs => $objs };
		762	aio_write $fh, 0, (length $data), $data, 0;
		763	aio_fsync $fh;
		764	close $fh;
		765	aio_rename "$filename.pst~", "$filename.pst";
		766	}
		767	} else {
		768	aio_unlink "$filename.pst";
		769	}
		770
402	rename "$filename~", $filename;	771	aio_rename "$filename~", $filename;
		772	} else {
		773	warn "FATAL: $filename~: $!\n";
		774	}
403	} else {	775	} else {
404	unlink $filename;	776	aio_unlink $filename;
		777	aio_unlink "$filename.pst";
		778	}
405	}	779	}
		780	}
		781
		782	sub object_freezer_as_string {
		783	my ($rdata, $objs) = @_;
		784
		785	use Data::Dumper;
		786
		787	$$rdata . Dumper $objs
406	}	788	}
407		789
408	sub object_thawer_load {	790	sub object_thawer_load {
409	my ($filename) = @_;	791	my ($filename) = @_;
410		792
411	open my $fh, "<:raw:perlio", "$filename.pst"	793	my ($data, $av);
		794
		795	(aio_load $filename, $data) >= 0
412	or return;	796	or return;
413		797
414	eval { local $/; (Storable::thaw <$fh>)->{objs} }	798	unless (aio_stat "$filename.pst") {
415	}	799	(aio_load "$filename.pst", $av) >= 0
416		800	or return;
417	attach_to_objects	801	$av = eval { (Storable::thaw $av)->{objs} };
418	prio => -1000000,
419	on_clone => sub {
420	my ($src, $dst) = @_;
421
422	@{$dst->registry} = @{$src->registry};
423
424	%$dst = %$src;
425
426	$dst->{_attachment} = [@{ $src->{_attachment} }]
427	if exists $src->{_attachment};
428	},	802	}
429	;	803
		804	warn sprintf "loading %s (%d)\n",
		805	$filename, length $data, scalar @{$av || []};#d#
		806	return ($data, $av);
		807	}
430		808
431	#############################################################################	809	#############################################################################
432	# old plug-in events	810	# command handling &c
433		811
434	sub inject_event {	812	=item cf::register_command $name => \&callback($ob,$args);
435	my $extension = shift;
436	my $event_code = shift;
437		813
438	my $cb = $hook[$event_code]{$extension}	814	Register a callback for execution when the client sends the user command
439	or return;	815	$name.
440		816
441	&$cb	817	=cut
442	}
443
444	sub inject_global_event {
445	my $event = shift;
446
447	my $cb = $hook[$event]
448	or return;
449
450	List::Util::max map &$_, values %$cb
451	}
452
453	sub inject_command {
454	my ($name, $obj, $params) = @_;
455
456	for my $cmd (@{ $command{$name} }) {
457	$cmd->[1]->($obj, $params);
458	}
459
460	-1
461	}
462		818
463	sub register_command {	819	sub register_command {
464	my ($name, $time, $cb) = @_;	820	my ($name, $cb) = @_;
465		821
466	my $caller = caller;	822	my $caller = caller;
467	#warn "registering command '$name/$time' to '$caller'";	823	#warn "registering command '$name/$time' to '$caller'";
468		824
469	push @{ $command{$name} }, [$time, $cb, $caller];	825	push @{ $COMMAND{$name} }, [$caller, $cb];
470	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
471	}	826	}
		827
		828	=item cf::register_extcmd $name => \&callback($pl,$packet);
		829
		830	Register a callbackf ro execution when the client sends an extcmd packet.
		831
		832	If the callback returns something, it is sent back as if reply was being
		833	called.
		834
		835	=cut
472		836
473	sub register_extcmd {	837	sub register_extcmd {
474	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
475		839
476	my $caller = caller;	840	$EXTCMD{$name} = $cb;
477	#warn "registering extcmd '$name' to '$caller'";
478
479	$extcmd{$name} = [$cb, $caller];
480	}	841	}
481		842
482	sub register {	843	cf::player->attach (
483	my ($base, $pkg) = @_;	844	on_command => sub {
		845	my ($pl, $name, $params) = @_;
484		846
485	#TODO	847	my $cb = $COMMAND{$name}
486	}	848	or return;
		849
		850	for my $cmd (@$cb) {
		851	$cmd->[1]->($pl->ob, $params);
		852	}
		853
		854	cf::override;
		855	},
		856	on_extcmd => sub {
		857	my ($pl, $buf) = @_;
		858
		859	my $msg = eval { from_json $buf };
		860
		861	if (ref $msg) {
		862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
		863	if (my %reply = $cb->($pl, $msg)) {
		864	$pl->ext_reply ($msg->{msgid}, %reply);
		865	}
		866	}
		867	} else {
		868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		869	}
		870
		871	cf::override;
		872	},
		873	);
487		874
488	sub load_extension {	875	sub load_extension {
489	my ($path) = @_;	876	my ($path) = @_;
490		877
491	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
492	my $base = $1;	879	my $base = $1;
493	my $pkg = $1;	880	my $pkg = $1;
494	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
495	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
496		883
497	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
498		885
499	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
500	or die "$path: $!";	887	or die "$path: $!";
501		888
502	my $source =	889	my $source =
503	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
504	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
505	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
506	. "\n};\n1";	893	. "\n};\n1";
507		894
508	eval $source	895	unless (eval $source) {
509	or die "$path: $@";	896	my $msg = $@ ? "$path: $@\n"
510		897	: "extension disabled.\n";
511	push @exts, $pkg;	898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
512	$ext_pkg{$base} = $pkg;	899	warn $@;
513		900	warn "mandatory extension failed to load, exiting.\n";
514	# no strict 'refs';	901	exit 1;
515	# @{"$pkg\::ISA"} = ext::;	902	}
516		903	die $@;
517	register $base, $pkg;
518	}
519
520	sub unload_extension {
521	my ($pkg) = @_;
522
523	warn "removing extension $pkg\n";
524
525	# remove hooks
526	#TODO
527	# for my $idx (0 .. $#PLUGIN_EVENT) {
528	# delete $hook[$idx]{$pkg};
529	# }	904	}
530		905
531	# remove commands	906	push @EXTS, $pkg;
532	for my $name (keys %command) {
533	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
534
535	if (@cb) {
536	$command{$name} = \@cb;
537	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
538	} else {
539	delete $command{$name};
540	delete $COMMAND{"$name\000"};
541	}
542	}
543
544	# remove extcmds
545	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
546	delete $extcmd{$name};
547	}
548
549	if (my $cb = $pkg->can ("unload")) {
550	eval {
551	$cb->($pkg);
552	1
553	} or warn "$pkg unloaded, but with errors: $@";
554	}
555
556	Symbol::delete_package $pkg;
557	}	907	}
558		908
559	sub load_extensions {	909	sub load_extensions {
560	my $LIBDIR = maps_directory "perl";
561
562	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
563	next unless -r $ext;	911	next unless -r $ext;
564	eval {	912	eval {
565	load_extension $ext;	913	load_extension $ext;
566	1	914	1
567	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
568	}	916	}
569	}	917	}
570		918
571	sub _perl_reload(&) {	919	#############################################################################
		920
		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	sub register {
		1146	my (undef, $regex) = @_;
		1147	my $pkg = caller;
		1148
		1149	no strict;
		1150	push @{"$pkg\::ISA"}, __PACKAGE__;
		1151
		1152	$EXT_MAP{$pkg} = qr<$regex>;
		1153	}
		1154
		1155	# also paths starting with '/'
		1156	$EXT_MAP{"cf::map"} = qr{^(?=/)};
		1157
		1158	sub thawer_merge {
		1159	my ($self, $merge) = @_;
		1160
		1161	# we have to keep some variables in memory intact
		1162	local $self->{path};
		1163	local $self->{load_path};
		1164	local $self->{deny_save};
		1165	local $self->{deny_reset};
		1166
		1167	$self->SUPER::thawer_merge ($merge);
		1168	}
		1169
		1170	sub normalise {
		1171	my ($path, $base) = @_;
		1172
		1173	# map plan:
		1174	#
		1175	# /! non-realised random map exit (special hack!)
		1176	# {... are special paths that are not being touched
		1177	# ?xxx/... are special absolute paths
		1178	# ?random/... random maps
		1179	# /... normal maps
		1180	# ~user/... per-player map of a specific user
		1181
		1182	$path =~ s/$PATH_SEP/\//go;
		1183
		1184	# treat it as relative path if it starts with
		1185	# something that looks reasonable
		1186	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1187	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1188
		1189	$base =~ s{[^/]+/?$}{};
		1190	$path = "$base/$path";
		1191	}
		1192
		1193	for ($path) {
		1194	redo if s{//}{/};
		1195	redo if s{/\.?/}{/};
		1196	redo if s{/[^/]+/\.\./}{/};
		1197	}
		1198
		1199	$path
		1200	}
		1201
		1202	sub new_from_path {
		1203	my (undef, $path, $base) = @_;
		1204
		1205	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1206
		1207	$path = normalise $path, $base;
		1208
		1209	for my $pkg (keys %EXT_MAP) {
		1210	if ($path =~ $EXT_MAP{$pkg}) {
		1211	my $self = bless cf::map::new, $pkg;
		1212	$self->{path} = $path; $self->path ($path);
		1213	$self->init; # pass $1 etc.
		1214	return $self;
		1215	}
		1216	}
		1217
		1218	Carp::carp "unable to resolve path '$path'.";
		1219	()
		1220	}
		1221
		1222	sub init {
		1223	my ($self) = @_;
		1224
		1225	$self
		1226	}
		1227
		1228	sub as_string {
		1229	my ($self) = @_;
		1230
		1231	"$self->{path}"
		1232	}
		1233
		1234	# the displayed name, this is a one way mapping
		1235	sub visible_name {
		1236	&as_string
		1237	}
		1238
		1239	# the original (read-only) location
		1240	sub load_path {
		1241	my ($self) = @_;
		1242
		1243	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1244	}
		1245
		1246	# the temporary/swap location
		1247	sub save_path {
		1248	my ($self) = @_;
		1249
		1250	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1251	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1252	}
		1253
		1254	# the unique path, undef == no special unique path
		1255	sub uniq_path {
		1256	my ($self) = @_;
		1257
		1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1259	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1260	}
		1261
		1262	# and all this just because we cannot iterate over
		1263	# all maps in C++...
		1264	sub change_all_map_light {
		1265	my ($change) = @_;
		1266
		1267	$_->change_map_light ($change)
		1268	for grep $_->outdoor, values %cf::MAP;
		1269	}
		1270
		1271	sub unlink_save {
		1272	my ($self) = @_;
		1273
		1274	utf8::encode (my $save = $self->save_path);
		1275	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1276	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1277	}
		1278
		1279	sub load_header_from($) {
		1280	my ($self, $path) = @_;
		1281
		1282	utf8::encode $path;
		1283	aio_open $path, O_RDONLY, 0
		1284	or return;
		1285
		1286	$self->_load_header ($path)
		1287	or return;
		1288
		1289	$self->{load_path} = $path;
		1290
		1291	1
		1292	}
		1293
		1294	sub load_orig {
		1295	my ($self) = @_;
		1296
		1297	$self->load_header_from ($self->load_path)
		1298	}
		1299
		1300	sub load_temp {
		1301	my ($self) = @_;
		1302
		1303	$self->load_header_from ($self->save_path)
		1304	}
		1305
		1306	sub load_header {
		1307	my ($self) = @_;
		1308
		1309	if ($self->load_temp) {
		1310	$self->last_access ((delete $self->{last_access})
		1311	|| $cf::RUNTIME); #d#
		1312	# safety
		1313	$self->{instantiate_time} = $cf::RUNTIME
		1314	if $self->{instantiate_time} > $cf::RUNTIME;
		1315	} else {
		1316	$self->load_orig
		1317	or return;
		1318
		1319	$self->{load_original} = 1;
		1320	$self->{instantiate_time} = $cf::RUNTIME;
		1321	$self->last_access ($cf::RUNTIME);
		1322	$self->instantiate;
		1323	}
		1324
		1325	1
		1326	}
		1327
		1328	sub find;
		1329	sub find {
		1330	my ($path, $origin) = @_;
		1331
		1332	$path = normalise $path, $origin && $origin->path;
		1333
		1334	cf::lock_wait "map_find:$path";
		1335
		1336	$cf::MAP{$path} || do {
		1337	my $guard = cf::lock_acquire "map_find:$path";
		1338	my $map = new_from_path cf::map $path
		1339	or return;
		1340
		1341	$map->{last_save} = $cf::RUNTIME;
		1342
		1343	$map->load_header
		1344	or return;
		1345
		1346	if ($map->should_reset) {
		1347	# doing this can freeze the server in a sync job, obviously
		1348	#$cf::WAIT_FOR_TICK->wait;
		1349	$map->reset;
		1350	undef $guard;
		1351	$map = find $path
		1352	or return;
		1353	}
		1354
		1355	$cf::MAP{$path} = $map
		1356	}
		1357	}
		1358
		1359	sub load {
		1360	my ($self) = @_;
		1361
		1362	my $path = $self->{path};
		1363	my $guard = cf::lock_acquire "map_load:$path";
		1364
		1365	return if $self->in_memory != cf::MAP_SWAPPED;
		1366
		1367	$self->in_memory (cf::MAP_LOADING);
		1368
		1369	$self->alloc;
		1370	$self->_load_objects ($self->{load_path}, 1)
		1371	or return;
		1372
		1373	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1374	if delete $self->{load_original};
		1375
		1376	if (my $uniq = $self->uniq_path) {
		1377	utf8::encode $uniq;
		1378	if (aio_open $uniq, O_RDONLY, 0) {
		1379	$self->clear_unique_items;
		1380	$self->_load_objects ($uniq, 0);
		1381	}
		1382	}
		1383
		1384	Coro::cede;
		1385
		1386	# now do the right thing for maps
		1387	$self->link_multipart_objects;
		1388
		1389	unless ($self->{deny_activate}) {
		1390	$self->decay_objects;
		1391	$self->fix_auto_apply;
		1392	$self->update_buttons;
		1393	Coro::cede;
		1394	$self->set_darkness_map;
		1395	$self->difficulty ($self->estimate_difficulty)
		1396	unless $self->difficulty;
		1397	Coro::cede;
		1398	$self->activate;
		1399	}
		1400
		1401	$self->in_memory (cf::MAP_IN_MEMORY);
		1402	}
		1403
		1404	sub customise_for {
		1405	my ($self, $ob) = @_;
		1406
		1407	return find "~" . $ob->name . "/" . $self->{path}
		1408	if $self->per_player;
		1409
		1410	$self
		1411	}
		1412
		1413	# find and load all maps in the 3x3 area around a map
		1414	sub load_diag {
572	my ($msg) = @_;	1415	my ($map) = @_;
573		1416
574	$msg->("reloading...");	1417	my @diag; # diagonal neighbours
575		1418
576	eval {	1419	for (0 .. 3) {
577	# 1. cancel all watchers	1420	my $neigh = $map->tile_path ($_)
578	$_->cancel for Event::all_watchers;	1421	or next;
		1422	$neigh = find $neigh, $map
		1423	or next;
		1424	$neigh->load;
579		1425
580	# 2. unload all extensions	1426	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
581	for (@exts) {	1427	[$neigh->tile_path (($_ + 1) % 4), $neigh];
582	$msg->("unloading <$_>");	1428	}
583	unload_extension $_;
584	}
585		1429
586	# 3. unload all modules loaded from $LIBDIR	1430	for (@diag) {
587	while (my ($k, $v) = each %INC) {	1431	my $neigh = find @$_
588	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1432	or next;
		1433	$neigh->load;
		1434	}
		1435	}
589		1436
590	$msg->("removing <$k>");	1437	sub find_sync {
591	delete $INC{$k};	1438	my ($path, $origin) = @_;
592		1439
593	$k =~ s/\.pm$//;	1440	cf::sync_job { find $path, $origin }
594	$k =~ s/\//::/g;	1441	}
595		1442
596	if (my $cb = $k->can ("unload_module")) {	1443	sub do_load_sync {
597	$cb->();	1444	my ($map) = @_;
		1445
		1446	cf::sync_job { $map->load };
		1447	}
		1448
		1449	our %MAP_PREFETCH;
		1450	our $MAP_PREFETCHER = undef;
		1451
		1452	sub find_async {
		1453	my ($path, $origin) = @_;
		1454
		1455	$path = normalise $path, $origin && $origin->{path};
		1456
		1457	if (my $map = $cf::MAP{$path}) {
		1458	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1459	}
		1460
		1461	undef $MAP_PREFETCH{$path};
		1462	$MAP_PREFETCHER ||= cf::async {
		1463	while (%MAP_PREFETCH) {
		1464	for my $path (keys %MAP_PREFETCH) {
		1465	my $map = find $path
		1466	or next;
		1467	$map->load;
		1468
		1469	delete $MAP_PREFETCH{$path};
598	}	1470	}
599
600	Symbol::delete_package $k;
601	}
602
603	# 4. get rid of safe::, as good as possible
604	Symbol::delete_package "safe::$_"
605	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
606
607	# 5. remove register_script_function callbacks
608	# TODO
609		1471	}
610	# 6. unload cf.pm "a bit"	1472	undef $MAP_PREFETCHER;
611	delete $INC{"cf.pm"};
612
613	# don't, removes xs symbols, too,
614	# and global variables created in xs
615	#Symbol::delete_package __PACKAGE__;
616
617	# 7. reload cf.pm
618	$msg->("reloading cf.pm");
619	require cf;
620	};	1473	};
621	$msg->($@) if $@;
622		1474
623	$msg->("reloaded");	1475	()
624	};	1476	}
625		1477
626	sub perl_reload() {	1478	sub save {
627	_perl_reload {	1479	my ($self) = @_;
628	warn $_[0];	1480
629	print "$_[0]\n";	1481	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1482
		1483	$self->{last_save} = $cf::RUNTIME;
		1484
		1485	return unless $self->dirty;
		1486
		1487	my $save = $self->save_path; utf8::encode $save;
		1488	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1489
		1490	$self->{load_path} = $save;
		1491
		1492	return if $self->{deny_save};
		1493
		1494	local $self->{last_access} = $self->last_access;#d#
		1495
		1496	cf::async {
		1497	$_->contr->save for $self->players;
630	};	1498	};
631	}
632		1499
633	register_command "perl-reload", 0, sub {	1500	if ($uniq) {
634	my ($who, $arg) = @_;	1501	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
635		1502	$self->_save_objects ($uniq, cf::IO_UNIQUES);
636	if ($who->flag (FLAG_WIZ)) {
637	_perl_reload {
638	warn $_[0];
639	$who->message ($_[0]);
640	};
641	}
642	};
643
644	#############################################################################
645	# extcmd framework, basically convert ext <msg>
646	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
647
648	attach_to_players
649	on_extcmd => sub {
650	my ($pl, $buf) = @_;
651
652	my $msg = eval { from_json $buf };
653
654	if (ref $msg) {
655	if (my $cb = $extcmd{$msg->{msgtype}}) {
656	if (my %reply = $cb->[0]->($pl, $msg)) {
657	$pl->ext_reply ($msg->{msgid}, %reply);
658	}
659	}
660	} else {	1503	} else {
661	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1504	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
662	}
663
664	cf::override;
665	},	1505	}
666	;	1506	}
667		1507
668	#############################################################################	1508	sub swap_out {
669	# load/save/clean perl data associated with a map
670
671	*cf::mapsupport::on_clean = sub {
672	my ($map) = @_;	1509	my ($self) = @_;
673		1510
674	my $path = $map->tmpname;	1511	# save first because save cedes
675	defined $path or return;	1512	$self->save;
676		1513
677	unlink "$path.cfperl";	1514	my $lock = cf::lock_acquire "map_data:" . $self->path;
678	unlink "$path.pst";
679	};
680		1515
681	*cf::mapsupport::on_swapin =	1516	return if $self->players;
682	*cf::mapsupport::on_load = sub {	1517	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1518	return if $self->{deny_save};
		1519
		1520	$self->clear;
		1521	$self->in_memory (cf::MAP_SWAPPED);
		1522	}
		1523
		1524	sub reset_at {
683	my ($map) = @_;	1525	my ($self) = @_;
684		1526
685	my $path = $map->tmpname;	1527	# TODO: safety, remove and allow resettable per-player maps
686	$path = $map->path unless defined $path;	1528	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1529	return 1e99 if $self->{deny_reset};
687		1530
688	open my $fh, "<:raw", "$path.cfperl"	1531	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
689	or return; # no perl data	1532	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
690		1533
691	my $data = Storable::thaw do { local $/; <$fh> };	1534	$time + $to
		1535	}
692		1536
693	$data->{version} <= 1	1537	sub should_reset {
		1538	my ($self) = @_;
		1539
		1540	$self->reset_at <= $cf::RUNTIME
		1541	}
		1542
		1543	sub reset {
		1544	my ($self) = @_;
		1545
		1546	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1547
		1548	return if $self->players;
		1549	return if $self->isa ("ext::map_per_player");#d#
		1550
		1551	warn "resetting map ", $self->path;#d#
		1552
		1553	delete $cf::MAP{$self->path};
		1554
		1555	$self->in_memory (cf::MAP_SWAPPED);
		1556	$self->clear;
		1557
		1558	$_->clear_links_to ($self) for values %cf::MAP;
		1559
		1560	$self->unlink_save;
		1561	$self->destroy;
		1562	}
		1563
		1564	my $nuke_counter = "aaaa";
		1565
		1566	sub nuke {
		1567	my ($self) = @_;
		1568
		1569	delete $cf::MAP{$self->path};
		1570
		1571	$self->unlink_save;
		1572
		1573	bless $self, "cf::map";
		1574	delete $self->{deny_reset};
		1575	$self->{deny_save} = 1;
		1576	$self->reset_timeout (1);
		1577	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1578
		1579	$cf::MAP{$self->path} = $self;
		1580
		1581	$self->reset; # polite request, might not happen
		1582	}
		1583
		1584	=item cf::map::unique_maps
		1585
		1586	Returns an arrayref of paths of all shared maps that have
		1587	instantiated unique items. May block.
		1588
		1589	=cut
		1590
		1591	sub unique_maps() {
		1592	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
694	or return; # too new	1593	or return;
695		1594
696	$map->_set_obs ($data->{obs});	1595	my @paths;
697	};
698		1596
699	attach_to_maps prio => -10000, package => cf::mapsupport::;	1597	for (@$files) {
		1598	utf8::decode $_;
		1599	next if /\.pst$/;
		1600	next unless /^$PATH_SEP/o;
700		1601
701	#############################################################################	1602	s/\.map$//;
702	# load/save perl data associated with player->ob objects	1603	push @paths, $_;
703
704	sub all_objects(@) {
705	@_, map all_objects ($_->inv), @_
706	}
707
708	attach_to_players
709	on_load => sub {
710	my ($pl, $path) = @_;
711
712	for my $o (all_objects $pl->ob) {
713	if (my $value = $o->get_ob_key_value ("_perl_data")) {
714	$o->set_ob_key_value ("_perl_data");
715
716	%$o = %{ Storable::thaw pack "H*", $value };
717	}
718	}
719	},	1604	}
720	;
721		1605
722	#############################################################################	1606	\@paths
723	# core extensions - in perl
724
725	=item cf::player::exists $login
726
727	Returns true when the given account exists.
728
729	=cut
730
731	sub cf::player::exists($) {
732	cf::player::find $_[0]
733	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
734	}	1607	}
735		1608
		1609	package cf;
		1610
		1611	=back
		1612
		1613	=head3 cf::object
		1614
		1615	=cut
		1616
		1617	package cf::object;
		1618
		1619	=over 4
		1620
		1621	=item $ob->inv_recursive
		1622
		1623	Returns the inventory of the object _and_ their inventories, recursively.
		1624
		1625	=cut
		1626
		1627	sub inv_recursive_;
		1628	sub inv_recursive_ {
		1629	map { $_, inv_recursive_ $_->inv } @_
		1630	}
		1631
		1632	sub inv_recursive {
		1633	inv_recursive_ inv $_[0]
		1634	}
		1635
		1636	package cf;
		1637
		1638	=back
		1639
		1640	=head3 cf::object::player
		1641
		1642	=over 4
		1643
736	=item $player->reply ($npc, $msg[, $flags])	1644	=item $player_object->reply ($npc, $msg[, $flags])
737		1645
738	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1646	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
739	can be C<undef>. Does the right thing when the player is currently in a	1647	can be C<undef>. Does the right thing when the player is currently in a
740	dialogue with the given NPC character.	1648	dialogue with the given NPC character.
741		1649
742	=cut	1650	=cut
743		1651
744	# rough implementation of a future "reply" method that works	1652	# rough implementation of a future "reply" method that works
745	# with dialog boxes.	1653	# with dialog boxes.
		1654	#TODO: the first argument must go, split into a $npc->reply_to ( method
746	sub cf::object::player::reply($$$;$) {	1655	sub cf::object::player::reply($$$;$) {
747	my ($self, $npc, $msg, $flags) = @_;	1656	my ($self, $npc, $msg, $flags) = @_;
748		1657
749	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1658	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
750		1659
…		…
754	$msg = $npc->name . " says: $msg" if $npc;	1663	$msg = $npc->name . " says: $msg" if $npc;
755	$self->message ($msg, $flags);	1664	$self->message ($msg, $flags);
756	}	1665	}
757	}	1666	}
758		1667
759	=item $player->ext_reply ($msgid, $msgtype, %msg)	1668	=item $player_object->may ("access")
760		1669
761	Sends an ext reply to the player.	1670	Returns wether the given player is authorized to access resource "access"
		1671	(e.g. "command_wizcast").
762		1672
763	=cut	1673	=cut
764		1674
765	sub cf::player::ext_reply($$$%) {	1675	sub cf::object::player::may {
		1676	my ($self, $access) = @_;
		1677
		1678	$self->flag (cf::FLAG_WIZ) ||
		1679	(ref $cf::CFG{"may_$access"}
		1680	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1681	: $cf::CFG{"may_$access"})
		1682	}
		1683
		1684	=item $player_object->enter_link
		1685
		1686	Freezes the player and moves him/her to a special map (C<{link}>).
		1687
		1688	The player should be reasonably safe there for short amounts of time. You
		1689	I<MUST> call C<leave_link> as soon as possible, though.
		1690
		1691	Will never block.
		1692
		1693	=item $player_object->leave_link ($map, $x, $y)
		1694
		1695	Moves the player out of the special C<{link}> map onto the specified
		1696	map. If the map is not valid (or omitted), the player will be moved back
		1697	to the location he/she was before the call to C<enter_link>, or, if that
		1698	fails, to the emergency map position.
		1699
		1700	Might block.
		1701
		1702	=cut
		1703
		1704	sub link_map {
		1705	unless ($LINK_MAP) {
		1706	$LINK_MAP = cf::map::find "{link}"
		1707	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1708	$LINK_MAP->load;
		1709	}
		1710
		1711	$LINK_MAP
		1712	}
		1713
		1714	sub cf::object::player::enter_link {
		1715	my ($self) = @_;
		1716
		1717	$self->deactivate_recursive;
		1718
		1719	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1720
		1721	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1722	if $self->map;
		1723
		1724	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1725	}
		1726
		1727	sub cf::object::player::leave_link {
		1728	my ($self, $map, $x, $y) = @_;
		1729
		1730	my $link_pos = delete $self->{_link_pos};
		1731
		1732	unless ($map) {
		1733	# restore original map position
		1734	($map, $x, $y) = @{ $link_pos || [] };
		1735	$map = cf::map::find $map;
		1736
		1737	unless ($map) {
		1738	($map, $x, $y) = @$EMERGENCY_POSITION;
		1739	$map = cf::map::find $map
		1740	or die "FATAL: cannot load emergency map\n";
		1741	}
		1742	}
		1743
		1744	($x, $y) = (-1, -1)
		1745	unless (defined $x) && (defined $y);
		1746
		1747	# use -1 or undef as default coordinates, not 0, 0
		1748	($x, $y) = ($map->enter_x, $map->enter_y)
		1749	if $x <=0 && $y <= 0;
		1750
		1751	$map->load;
		1752	$map->load_diag;
		1753
		1754	return unless $self->contr->active;
		1755	$self->activate_recursive;
		1756	$self->enter_map ($map, $x, $y);
		1757	}
		1758
		1759	cf::player->attach (
		1760	on_logout => sub {
		1761	my ($pl) = @_;
		1762
		1763	# abort map switching before logout
		1764	if ($pl->ob->{_link_pos}) {
		1765	cf::sync_job {
		1766	$pl->ob->leave_link
		1767	};
		1768	}
		1769	},
		1770	on_login => sub {
		1771	my ($pl) = @_;
		1772
		1773	# try to abort aborted map switching on player login :)
		1774	# should happen only on crashes
		1775	if ($pl->ob->{_link_pos}) {
		1776	$pl->ob->enter_link;
		1777	(async {
		1778	# we need this sleep as the login has a concurrent enter_exit running
		1779	# and this sleep increases chances of the player not ending up in scorn
		1780	$pl->ob->reply (undef,
		1781	"There was an internal problem at your last logout, "
		1782	. "the server will try to bring you to your intended destination in a second.",
		1783	cf::NDI_RED);
		1784	Coro::Timer::sleep 1;
		1785	$pl->ob->leave_link;
		1786	})->prio (2);
		1787	}
		1788	},
		1789	);
		1790
		1791	=item $player_object->goto ($path, $x, $y)
		1792
		1793	=cut
		1794
		1795	sub cf::object::player::goto {
		1796	my ($self, $path, $x, $y) = @_;
		1797
		1798	$self->enter_link;
		1799
		1800	(async {
		1801	my $map = cf::map::find $path;
		1802	$map = $map->customise_for ($self) if $map;
		1803
		1804	# warn "entering ", $map->path, " at ($x, $y)\n"
		1805	# if $map;
		1806
		1807	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1808
		1809	$self->leave_link ($map, $x, $y);
		1810	})->prio (1);
		1811	}
		1812
		1813	=item $player_object->enter_exit ($exit_object)
		1814
		1815	=cut
		1816
		1817	sub parse_random_map_params {
		1818	my ($spec) = @_;
		1819
		1820	my $rmp = { # defaults
		1821	xsize => (cf::rndm 15, 40),
		1822	ysize => (cf::rndm 15, 40),
		1823	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1824	#layout => string,
		1825	};
		1826
		1827	for (split /\n/, $spec) {
		1828	my ($k, $v) = split /\s+/, $_, 2;
		1829
		1830	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1831	}
		1832
		1833	$rmp
		1834	}
		1835
		1836	sub prepare_random_map {
		1837	my ($exit) = @_;
		1838
		1839	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1840
		1841	# all this does is basically replace the /! path by
		1842	# a new random map path (?random/...) with a seed
		1843	# that depends on the exit object
		1844
		1845	my $rmp = parse_random_map_params $exit->msg;
		1846
		1847	if ($exit->map) {
		1848	$rmp->{region} = $exit->map->region_name;
		1849	$rmp->{origin_map} = $exit->map->path;
		1850	$rmp->{origin_x} = $exit->x;
		1851	$rmp->{origin_y} = $exit->y;
		1852	}
		1853
		1854	$rmp->{random_seed} ||= $exit->random_seed;
		1855
		1856	my $data = cf::to_json $rmp;
		1857	my $md5 = Digest::MD5::md5_hex $data;
		1858	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1859
		1860	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1861	aio_write $fh, 0, (length $data), $data, 0;
		1862	undef $fh;
		1863	aio_rename "$meta~", $meta;
		1864
		1865	$exit->slaying ("?random/$md5");
		1866	$exit->msg (undef);
		1867	}
		1868	}
		1869
		1870	sub cf::object::player::enter_exit {
766	my ($self, $id, %msg) = @_;	1871	my ($self, $exit) = @_;
767		1872
768	$msg{msgid} = $id;	1873	return unless $self->type == cf::PLAYER;
769		1874
770	$self->send ("ext " . to_json \%msg);	1875	$self->enter_link;
771	}
772		1876
773	#############################################################################	1877	(async {
774	# map scripting support	1878	$self->deactivate_recursive; # just to be sure
		1879	unless (eval {
		1880	prepare_random_map $exit
		1881	if $exit->slaying eq "/!";
		1882
		1883	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1884	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1885
		1886	1;
		1887	}) {
		1888	$self->message ("Something went wrong deep within the crossfire server. "
		1889	. "I'll try to bring you back to the map you were before. "
		1890	. "Please report this to the dungeon master!",
		1891	cf::NDI_UNIQUE | cf::NDI_RED);
		1892
		1893	warn "ERROR in enter_exit: $@";
		1894	$self->leave_link;
		1895	}
		1896	})->prio (1);
		1897	}
		1898
		1899	=head3 cf::client
		1900
		1901	=over 4
		1902
		1903	=item $client->send_drawinfo ($text, $flags)
		1904
		1905	Sends a drawinfo packet to the client. Circumvents output buffering so
		1906	should not be used under normal circumstances.
		1907
		1908	=cut
		1909
		1910	sub cf::client::send_drawinfo {
		1911	my ($self, $text, $flags) = @_;
		1912
		1913	utf8::encode $text;
		1914	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1915	}
		1916
		1917
		1918	=item $success = $client->query ($flags, "text", \&cb)
		1919
		1920	Queues a query to the client, calling the given callback with
		1921	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1922	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1923
		1924	Queries can fail, so check the return code. Or don't, as queries will become
		1925	reliable at some point in the future.
		1926
		1927	=cut
		1928
		1929	sub cf::client::query {
		1930	my ($self, $flags, $text, $cb) = @_;
		1931
		1932	return unless $self->state == ST_PLAYING
		1933	|| $self->state == ST_SETUP
		1934	|| $self->state == ST_CUSTOM;
		1935
		1936	$self->state (ST_CUSTOM);
		1937
		1938	utf8::encode $text;
		1939	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1940
		1941	$self->send_packet ($self->{query_queue}[0][0])
		1942	if @{ $self->{query_queue} } == 1;
		1943	}
		1944
		1945	cf::client->attach (
		1946	on_reply => sub {
		1947	my ($ns, $msg) = @_;
		1948
		1949	# this weird shuffling is so that direct followup queries
		1950	# get handled first
		1951	my $queue = delete $ns->{query_queue}
		1952	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1953
		1954	(shift @$queue)->[1]->($msg);
		1955
		1956	push @{ $ns->{query_queue} }, @$queue;
		1957
		1958	if (@{ $ns->{query_queue} } == @$queue) {
		1959	if (@$queue) {
		1960	$ns->send_packet ($ns->{query_queue}[0][0]);
		1961	} else {
		1962	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1963	}
		1964	}
		1965	},
		1966	);
		1967
		1968	=item $client->async (\&cb)
		1969
		1970	Create a new coroutine, running the specified callback. The coroutine will
		1971	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1972	or loss of connection).
		1973
		1974	=cut
		1975
		1976	sub cf::client::async {
		1977	my ($self, $cb) = @_;
		1978
		1979	my $coro = &Coro::async ($cb);
		1980
		1981	$coro->on_destroy (sub {
		1982	delete $self->{_coro}{$coro+0};
		1983	});
		1984
		1985	$self->{_coro}{$coro+0} = $coro;
		1986
		1987	$coro
		1988	}
		1989
		1990	cf::client->attach (
		1991	on_destroy => sub {
		1992	my ($ns) = @_;
		1993
		1994	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		1995	},
		1996	);
		1997
		1998	=back
		1999
		2000
		2001	=head2 SAFE SCRIPTING
		2002
		2003	Functions that provide a safe environment to compile and execute
		2004	snippets of perl code without them endangering the safety of the server
		2005	itself. Looping constructs, I/O operators and other built-in functionality
		2006	is not available in the safe scripting environment, and the number of
		2007	functions and methods that can be called is greatly reduced.
		2008
		2009	=cut
775		2010
776	our $safe = new Safe "safe";	2011	our $safe = new Safe "safe";
777	our $safe_hole = new Safe::Hole;	2012	our $safe_hole = new Safe::Hole;
778		2013
779	$SIG{FPE} = 'IGNORE';	2014	$SIG{FPE} = 'IGNORE';
780		2015
781	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2016	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
782		2017
783	# here we export the classes and methods available to script code	2018	# here we export the classes and methods available to script code
784		2019
		2020	=pod
		2021
		2022	The following fucntions and emthods are available within a safe environment:
		2023
		2024	cf::object contr pay_amount pay_player map
		2025	cf::object::player player
		2026	cf::player peaceful
		2027	cf::map trigger
		2028
		2029	=cut
		2030
785	for (	2031	for (
786	["cf::object" => qw(contr pay_amount pay_player)],	2032	["cf::object" => qw(contr pay_amount pay_player map)],
787	["cf::object::player" => qw(player)],	2033	["cf::object::player" => qw(player)],
788	["cf::player" => qw(peaceful)],	2034	["cf::player" => qw(peaceful)],
		2035	["cf::map" => qw(trigger)],
789	) {	2036	) {
790	no strict 'refs';	2037	no strict 'refs';
791	my ($pkg, @funs) = @$_;	2038	my ($pkg, @funs) = @$_;
792	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2039	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
793	for @funs;	2040	for @funs;
794	}	2041	}
		2042
		2043	=over 4
		2044
		2045	=item @retval = safe_eval $code, [var => value, ...]
		2046
		2047	Compiled and executes the given perl code snippet. additional var/value
		2048	pairs result in temporary local (my) scalar variables of the given name
		2049	that are available in the code snippet. Example:
		2050
		2051	my $five = safe_eval '$first + $second', first => 1, second => 4;
		2052
		2053	=cut
795		2054
796	sub safe_eval($;@) {	2055	sub safe_eval($;@) {
797	my ($code, %vars) = @_;	2056	my ($code, %vars) = @_;
798		2057
799	my $qcode = $code;	2058	my $qcode = $code;
…		…
822	}	2081	}
823		2082
824	wantarray ? @res : $res[0]	2083	wantarray ? @res : $res[0]
825	}	2084	}
826		2085
		2086	=item cf::register_script_function $function => $cb
		2087
		2088	Register a function that can be called from within map/npc scripts. The
		2089	function should be reasonably secure and should be put into a package name
		2090	like the extension.
		2091
		2092	Example: register a function that gets called whenever a map script calls
		2093	C<rent::overview>, as used by the C<rent> extension.
		2094
		2095	cf::register_script_function "rent::overview" => sub {
		2096	...
		2097	};
		2098
		2099	=cut
		2100
827	sub register_script_function {	2101	sub register_script_function {
828	my ($fun, $cb) = @_;	2102	my ($fun, $cb) = @_;
829		2103
830	no strict 'refs';	2104	no strict 'refs';
831	*{"safe::$fun"} = $safe_hole->wrap ($cb);	2105	*{"safe::$fun"} = $safe_hole->wrap ($cb);
832	}	2106	}
833		2107
		2108	=back
		2109
		2110	=cut
		2111
		2112	#############################################################################
		2113
		2114	=head2 EXTENSION DATABASE SUPPORT
		2115
		2116	Crossfire maintains a very simple database for extension use. It can
		2117	currently store anything that can be serialised using Storable, which
		2118	excludes objects.
		2119
		2120	The parameter C<$family> should best start with the name of the extension
		2121	using it, it should be unique.
		2122
		2123	=over 4
		2124
		2125	=item $hashref = cf::db_get $family
		2126
		2127	Return a hashref for use by the extension C<$family>, which can be
		2128	modified. After modifications, you have to call C<cf::db_dirty> or
		2129	C<cf::db_sync>.
		2130
		2131	=item $value = cf::db_get $family => $key
		2132
		2133	Returns a single value from the database
		2134
		2135	=item cf::db_put $family => $hashref
		2136
		2137	Stores the given family hashref into the database. Updates are delayed, if
		2138	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		2139
		2140	=item cf::db_put $family => $key => $value
		2141
		2142	Stores the given C<$value> in the family hash. Updates are delayed, if you
		2143	want the data to be synced to disk immediately, use C<cf::db_sync>.
		2144
		2145	=item cf::db_dirty
		2146
		2147	Marks the database as dirty, to be updated at a later time.
		2148
		2149	=item cf::db_sync
		2150
		2151	Immediately write the database to disk I<if it is dirty>.
		2152
		2153	=cut
		2154
		2155	our $DB;
		2156
		2157	{
		2158	my $path = cf::localdir . "/database.pst";
		2159
		2160	sub db_load() {
		2161	$DB = stat $path ? Storable::retrieve $path : { };
		2162	}
		2163
		2164	my $pid;
		2165
		2166	sub db_save() {
		2167	waitpid $pid, 0 if $pid;
		2168	if (0 == ($pid = fork)) {
		2169	$DB->{_meta}{version} = 1;
		2170	Storable::nstore $DB, "$path~";
		2171	rename "$path~", $path;
		2172	cf::_exit 0 if defined $pid;
		2173	}
		2174	}
		2175
		2176	my $dirty;
		2177
		2178	sub db_sync() {
		2179	db_save if $dirty;
		2180	undef $dirty;
		2181	}
		2182
		2183	my $idle = Event->idle (min => 10, max => 20, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
		2184	db_sync;
		2185	});
		2186
		2187	sub db_dirty() {
		2188	$dirty = 1;
		2189	$idle->start;
		2190	}
		2191
		2192	sub db_get($;$) {
		2193	@_ >= 2
		2194	? $DB->{$_[0]}{$_[1]}
		2195	: ($DB->{$_[0]} ||= { })
		2196	}
		2197
		2198	sub db_put($$;$) {
		2199	if (@_ >= 3) {
		2200	$DB->{$_[0]}{$_[1]} = $_[2];
		2201	} else {
		2202	$DB->{$_[0]} = $_[1];
		2203	}
		2204	db_dirty;
		2205	}
		2206
		2207	cf::global->attach (
		2208	prio => 10000,
		2209	on_cleanup => sub {
		2210	db_sync;
		2211	},
		2212	);
		2213	}
		2214
834	#############################################################################	2215	#############################################################################
835	# the server's main()	2216	# the server's main()
836		2217
		2218	sub cfg_load {
		2219	open my $fh, "<:utf8", cf::confdir . "/config"
		2220	or return;
		2221
		2222	local $/;
		2223	*CFG = YAML::Syck::Load <$fh>;
		2224
		2225	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2226
		2227	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2228	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2229
		2230	if (exists $CFG{mlockall}) {
		2231	eval {
		2232	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2233	and die "WARNING: m(un)lockall failed: $!\n";
		2234	};
		2235	warn $@ if $@;
		2236	}
		2237	}
		2238
837	sub main {	2239	sub main {
		2240	# we must not ever block the main coroutine
		2241	local $Coro::idle = sub {
		2242	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2243	(async {
		2244	Event::one_event;
		2245	})->prio (Coro::PRIO_MAX);
		2246	};
		2247
		2248	cfg_load;
		2249	db_load;
		2250	load_extensions;
		2251
		2252	$TICK_WATCHER->start;
838	Event::loop;	2253	Event::loop;
839	}	2254	}
840		2255
841	#############################################################################	2256	#############################################################################
842	# initialisation	2257	# initialisation and cleanup
843		2258
844	register "<global>", __PACKAGE__;	2259	# install some emergency cleanup handlers
		2260	BEGIN {
		2261	for my $signal (qw(INT HUP TERM)) {
		2262	Event->signal (
		2263	data => WF_AUTOCANCEL,
		2264	signal => $signal,
		2265	cb => sub {
		2266	cf::cleanup "SIG$signal";
		2267	},
		2268	);
		2269	}
		2270	}
		2271
		2272	sub emergency_save() {
		2273	my $freeze_guard = cf::freeze_mainloop;
		2274
		2275	warn "enter emergency perl save\n";
		2276
		2277	cf::sync_job {
		2278	# use a peculiar iteration method to avoid tripping on perl
		2279	# refcount bugs in for. also avoids problems with players
		2280	# and maps saved/destroyed asynchronously.
		2281	warn "begin emergency player save\n";
		2282	for my $login (keys %cf::PLAYER) {
		2283	my $pl = $cf::PLAYER{$login} or next;
		2284	$pl->valid or next;
		2285	$pl->save;
		2286	}
		2287	warn "end emergency player save\n";
		2288
		2289	warn "begin emergency map save\n";
		2290	for my $path (keys %cf::MAP) {
		2291	my $map = $cf::MAP{$path} or next;
		2292	$map->valid or next;
		2293	$map->save;
		2294	}
		2295	warn "end emergency map save\n";
		2296	};
		2297
		2298	warn "leave emergency perl save\n";
		2299	}
		2300
		2301	sub reload() {
		2302	# can/must only be called in main
		2303	if ($Coro::current != $Coro::main) {
		2304	warn "can only reload from main coroutine";
		2305	return;
		2306	}
		2307
		2308	warn "reloading...";
		2309
		2310	warn "cancelling server ticker";
		2311	$TICK_WATCHER->cancel;
		2312
		2313	cf::emergency_save;
		2314
		2315	eval {
		2316	# if anything goes wrong in here, we should simply crash as we already saved
		2317
		2318	warn "syncing database to disk";
		2319	cf::db_sync;
		2320
		2321	warn "cancelling all WF_AUTOCANCEL watchers";
		2322	for (Event::all_watchers) {
		2323	$_->cancel if $_->data & WF_AUTOCANCEL;
		2324	}
		2325
		2326	warn "flushing outstanding aio requests";
		2327	for (;;) {
		2328	IO::AIO::flush;
		2329	Coro::cede;
		2330	last unless IO::AIO::nreqs;
		2331	warn "iterate...";
		2332	}
		2333
		2334	warn "cancelling all extension coros";
		2335	$_->cancel for values %EXT_CORO;
		2336	%EXT_CORO = ();
		2337
		2338	warn "removing commands";
		2339	%COMMAND = ();
		2340
		2341	warn "removing ext commands";
		2342	%EXTCMD = ();
		2343
		2344	warn "unloading/nuking all extensions";
		2345	for my $pkg (@EXTS) {
		2346	warn "... unloading $pkg";
		2347
		2348	if (my $cb = $pkg->can ("unload")) {
		2349	eval {
		2350	$cb->($pkg);
		2351	1
		2352	} or warn "$pkg unloaded, but with errors: $@";
		2353	}
		2354
		2355	warn "... nuking $pkg";
		2356	Symbol::delete_package $pkg;
		2357	}
		2358
		2359	warn "unloading all perl modules loaded from $LIBDIR";
		2360	while (my ($k, $v) = each %INC) {
		2361	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		2362
		2363	warn "... unloading $k";
		2364	delete $INC{$k};
		2365
		2366	$k =~ s/\.pm$//;
		2367	$k =~ s/\//::/g;
		2368
		2369	if (my $cb = $k->can ("unload_module")) {
		2370	$cb->();
		2371	}
		2372
		2373	Symbol::delete_package $k;
		2374	}
		2375
		2376	warn "getting rid of safe::, as good as possible";
		2377	Symbol::delete_package "safe::$_"
		2378	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		2379
		2380	warn "unloading cf.pm \"a bit\"";
		2381	delete $INC{"cf.pm"};
		2382
		2383	# don't, removes xs symbols, too,
		2384	# and global variables created in xs
		2385	#Symbol::delete_package __PACKAGE__;
		2386
		2387	warn "unload completed, starting to reload now";
		2388
		2389	warn "reloading cf.pm";
		2390	require cf;
		2391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
		2392
		2393	warn "loading config and database again";
		2394	cf::cfg_load;
		2395	cf::db_load;
		2396
		2397	warn "loading extensions";
		2398	cf::load_extensions;
		2399
		2400	warn "reattaching attachments to objects/players";
		2401	_global_reattach;
		2402	warn "reattaching attachments to maps";
		2403	reattach $_ for values %MAP;
		2404
		2405	warn "restarting server ticker";
		2406
		2407	$TICK_WATCHER->start;
		2408	};
		2409
		2410	if ($@) {
		2411	warn $@;
		2412	warn "error while reloading, exiting.";
		2413	exit 1;
		2414	}
		2415
		2416	warn "reloaded";
		2417	};
		2418
		2419	our $RELOAD_WATCHER; # used only during reload
		2420
		2421	register_command "reload" => sub {
		2422	my ($who, $arg) = @_;
		2423
		2424	if ($who->flag (FLAG_WIZ)) {
		2425	$who->message ("reloading server.");
		2426
		2427	# doing reload synchronously and two reloads happen back-to-back,
		2428	# coro crashes during coro_state_free->destroy here.
		2429
		2430	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
		2431	reload;
		2432	undef $RELOAD_WATCHER;
		2433	});
		2434	}
		2435	};
845		2436
846	unshift @INC, $LIBDIR;	2437	unshift @INC, $LIBDIR;
847		2438
848	load_extensions;	2439	my $bug_warning = 0;
849		2440
850	$TICK_WATCHER = Event->timer (	2441	$TICK_WATCHER = Event->timer (
		2442	reentrant => 0,
		2443	parked => 1,
851	prio => 1,	2444	prio => 0,
852	at => $NEXT_TICK || 1,	2445	at => $NEXT_TICK || $TICK,
		2446	data => WF_AUTOCANCEL,
853	cb => sub {	2447	cb => sub {
		2448	if ($Coro::current != $Coro::main) {
		2449	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2450	unless ++$bug_warning > 10;
		2451	return;
		2452	}
		2453
		2454	$NOW = Event::time;
		2455
854	cf::server_tick; # one server iteration	2456	cf::server_tick; # one server iteration
855		2457	$RUNTIME += $TICK;
856	my $NOW = Event::time;
857	$NEXT_TICK += $TICK;	2458	$NEXT_TICK += $TICK;
858		2459
		2460	$WAIT_FOR_TICK->broadcast;
		2461	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2462
859	# if we are delayed by four ticks, skip them all	2463	# if we are delayed by four ticks or more, skip them all
860	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2464	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
861		2465
862	$TICK_WATCHER->at ($NEXT_TICK);	2466	$TICK_WATCHER->at ($NEXT_TICK);
863	$TICK_WATCHER->start;	2467	$TICK_WATCHER->start;
864	},	2468	},
865	);	2469	);
866		2470
867	_reload_2;	2471	IO::AIO::max_poll_time $TICK * 0.2;
		2472
		2473	$AIO_POLL_WATCHER = Event->io (
		2474	fd => IO::AIO::poll_fileno,
		2475	poll => 'r',
		2476	prio => 5,
		2477	data => WF_AUTOCANCEL,
		2478	cb => \&IO::AIO::poll_cb,
		2479	);
		2480
		2481	$WRITE_RUNTIME_WATCHER = Event->timer (
		2482	data => WF_AUTOCANCEL,
		2483	after => 1,
		2484	interval => 10,
		2485	prio => 6, # keep it lowest so it acts like a watchdog
		2486	cb => Coro::unblock_sub {
		2487	write_runtime
		2488	or warn "ERROR: unable to write runtime file: $!";
		2489	},
		2490	);
		2491
		2492	END { cf::emergency_save }
868		2493
869	1	2494	1
870		2495

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