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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.50 by root, Mon Aug 28 07:07:42 2006 UTC vs.
Revision 1.190 by root, Mon Jan 22 03:44:41 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 cf::living)) {	153	for my $pkg (qw(
		154	cf::global cf::attachable
		155	cf::object cf::object::player
		156	cf::client cf::player
		157	cf::arch cf::living
		158	cf::map cf::party cf::region
		159	)) {
78	no strict 'refs';	160	no strict 'refs';
79	@{"safe::$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
		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+).
		388
		389	=over 4
		390
110	=item $object->attach ($attachment, key => $value...)	391	=item $attachable->attach ($attachment, key => $value...)
111		392
112	Attach a pre-registered attachment to an object.	393	=item $attachable->detach ($attachment)
113		394
114	=item $player->attach ($attachment, key => $value...)	395	Attach/detach a pre-registered attachment to a specific object and give it
		396	the specified key/value pairs as arguments.
115		397
116	Attach a pre-registered attachment to a player.	398	Example, attach a minesweeper attachment to the given object, making it a
		399	10x10 minesweeper game:
117		400
118	=item $map->attach ($attachment, key => $value...) # not yet persistent	401	$obj->attach (minesweeper => width => 10, height => 10);
119		402
120	Attach a pre-registered attachment to a map.	403	=item $bool = $attachable->attached ($name)
121		404
122	=item cf::attach_global ...	405	Checks wether the named attachment is currently attached to the object.
123		406
124	Attach handlers for global events.	407	=item cf::CLASS->attach ...
125		408
126	This and all following C<attach_*>-functions expect any number of the	409	=item cf::CLASS->detach ...
127	following handler/hook descriptions:	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, %arg) = @_;	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	}	595	}
261		596
262	$obj->{$name} = \%arg;	597	$obj->{$name} = \%arg;
263	} else {	598	} else {
264	warn "object uses attachment '$name' that is not available, postponing.\n";	599	warn "object uses attachment '$name' that is not available, postponing.\n";
265	}	600	}
266		601
267	$obj->{_attachment}{$name} = undef;	602	$obj->{_attachment}{$name} = undef;
268
269	$res->{attachment} = $name;
270	$res
271	}	603	}
272		604
273	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 {
274	my ($obj, $name, %arg) = @_;	615	my ($obj, $name) = @_;
275		616
276	_attach_attachment $obj, $name, %arg;	617	if (ref $obj) {
277	}	618	delete $obj->{_attachment}{$name};
		619	reattach ($obj);
		620	} else {
		621	Carp::croak "cannot, currently, detach class attachments";
		622	}
		623	};
278		624
279	sub cf::player::attach {	625	sub cf::attachable::attached {
280	my ($obj, $name, %arg) = @_;	626	my ($obj, $name) = @_;
281		627
282	_attach_attachment KLASS_PLAYER, $obj, $name, %arg;	628	exists $obj->{_attachment}{$name}
283	}	629	}
284		630
285	sub cf::map::attach {	631	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
286	my ($obj, $name, %arg) = @_;	632	eval "#line " . __LINE__ . " 'cf.pm'
		633	sub cf::\L$klass\E::_attach_registry {
		634	(\\\@CB_$klass, KLASS_$klass)
		635	}
287		636
288	_attach_attachment KLASS_MAP, $obj, $name, %arg;	637	sub cf::\L$klass\E::attachment {
289	}
290
291	sub attach_global {
292	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
293	}
294
295	sub attach_to_type {
296	my $type = shift;
297	my $subtype = shift;
298
299	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
300	}
301
302	sub attach_to_objects {
303	_attach @CB_OBJECT, KLASS_OBJECT, @_
304	}
305
306	sub attach_to_players {
307	_attach @CB_PLAYER, KLASS_PLAYER, @_
308	}
309
310	sub attach_to_maps {
311	_attach @CB_MAP, KLASS_MAP, @_
312	}
313
314	sub register_attachment {
315	my $name = shift;	638	my \$name = shift;
316		639
317	$attachment{$name} = [[KLASS_OBJECT, @_]];	640	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		641	}
		642	";
		643	die if $@;
318	}	644	}
319		645
320	our $override;	646	our $override;
321	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?
322		648
…		…
336	for (@$callbacks) {	662	for (@$callbacks) {
337	eval { &{$_->[1]} };	663	eval { &{$_->[1]} };
338		664
339	if ($@) {	665	if ($@) {
340	warn "$@";	666	warn "$@";
341	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	667	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
342	override;	668	override;
343	}	669	}
344		670
345	return 1 if $override;	671	return 1 if $override;
346	}	672	}
347		673
348	0	674	0
349	}	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
350		690
351	#############################################################################	691	#############################################################################
352	# object support	692	# object support
353		693
354	sub instantiate {
355	my ($obj, $data) = @_;
356
357	$data = from_json $data;
358
359	for (@$data) {
360	my ($name, $args) = @$_;
361
362	$obj->attach ($name, %{$args || {} });
363	}
364	}
365
366	# basically do the same as instantiate, without calling instantiate
367	sub reattach {	694	sub reattach {
		695	# basically do the same as instantiate, without calling instantiate
368	my ($obj) = @_;	696	my ($obj) = @_;
		697
		698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		699
369	my $registry = $obj->registry;	700	my $registry = $obj->registry;
370		701
371	@$registry = ();	702	@$registry = ();
372		703
373	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	704	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
374		705
375	for my $name (keys %{ $obj->{_attachment} || {} }) {	706	for my $name (keys %{ $obj->{_attachment} || {} }) {
376	if (my $attach = $attachment{$name}) {	707	if (my $attach = $attachment{$name}) {
377	for (@$attach) {	708	for (@$attach) {
378	my ($klass, @attach) = @$_;	709	my ($klass, @attach) = @$_;
379	_attach @$registry, $klass, @attach;	710	_attach $registry, $klass, @attach;
380	}	711	}
381	} else {	712	} else {
382	warn "object uses attachment '$name' that is not available, postponing.\n";	713	warn "object uses attachment '$name' that is not available, postponing.\n";
383	}	714	}
384	}	715	}
385	}	716	}
386		717
387	sub object_freezer_save {	718	cf::attachable->attach (
388	my ($filename, $objs) = @_;
389
390	$filename .= ".pst";
391
392	if (@$objs) {
393	open my $fh, ">:raw", "$filename~";
394	chmod $fh, SAVE_MODE;
395	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
396	close $fh;
397	rename "$filename~", $filename;
398	} else {
399	unlink $filename;
400	}
401	}
402
403	sub object_thawer_load {
404	my ($filename) = @_;
405
406	open my $fh, "<:raw:perlio", "$filename.pst"
407	or return;
408
409	eval { local $/; (Storable::thaw <$fh>)->{objs} }
410	}
411
412	attach_to_objects
413	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,
414	on_clone => sub {	732	on_clone => sub {
415	my ($src, $dst) = @_;	733	my ($src, $dst) = @_;
416		734
417	@{$dst->registry} = @{$src->registry};	735	@{$dst->registry} = @{$src->registry};
418		736
419	%$dst = %$src;	737	%$dst = %$src;
420		738
421	%{$dst->{_attachment}} = %{$src->{_attachment}}	739	%{$dst->{_attachment}} = %{$src->{_attachment}}
422	if exists $src->{_attachment};	740	if exists $src->{_attachment};
423	},	741	},
424	;	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	}
425		808
426	#############################################################################	809	#############################################################################
427	# old plug-in events	810	# command handling &c
428		811
429	sub inject_event {	812	=item cf::register_command $name => \&callback($ob,$args);
430	my $extension = shift;
431	my $event_code = shift;
432		813
433	my $cb = $hook[$event_code]{$extension}	814	Register a callback for execution when the client sends the user command
434	or return;	815	$name.
435		816
436	&$cb	817	=cut
437	}
438
439	sub inject_global_event {
440	my $event = shift;
441
442	my $cb = $hook[$event]
443	or return;
444
445	List::Util::max map &$_, values %$cb
446	}
447
448	sub inject_command {
449	my ($name, $obj, $params) = @_;
450
451	for my $cmd (@{ $command{$name} }) {
452	$cmd->[1]->($obj, $params);
453	}
454
455	-1
456	}
457		818
458	sub register_command {	819	sub register_command {
459	my ($name, $time, $cb) = @_;	820	my ($name, $cb) = @_;
460		821
461	my $caller = caller;	822	my $caller = caller;
462	#warn "registering command '$name/$time' to '$caller'";	823	#warn "registering command '$name/$time' to '$caller'";
463		824
464	push @{ $command{$name} }, [$time, $cb, $caller];	825	push @{ $COMMAND{$name} }, [$caller, $cb];
465	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
466	}	826	}
		827
		828	=item cf::register_extcmd $name => \&callback($pl,$packet);
		829
		830	Register a callbackf ro execution when the client sends an extcmd packet.
		831
		832	If the callback returns something, it is sent back as if reply was being
		833	called.
		834
		835	=cut
467		836
468	sub register_extcmd {	837	sub register_extcmd {
469	my ($name, $cb) = @_;	838	my ($name, $cb) = @_;
470		839
471	my $caller = caller;	840	$EXTCMD{$name} = $cb;
472	#warn "registering extcmd '$name' to '$caller'";
473
474	$extcmd{$name} = [$cb, $caller];
475	}	841	}
476		842
477	sub register {	843	cf::player->attach (
478	my ($base, $pkg) = @_;	844	on_command => sub {
		845	my ($pl, $name, $params) = @_;
479		846
480	#TODO	847	my $cb = $COMMAND{$name}
481	}	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	);
482		874
483	sub load_extension {	875	sub load_extension {
484	my ($path) = @_;	876	my ($path) = @_;
485		877
486	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
487	my $base = $1;	879	my $base = $1;
488	my $pkg = $1;	880	my $pkg = $1;
489	$pkg =~ s/[^[:word:]]/_/g;	881	$pkg =~ s/[^[:word:]]/_/g;
490	$pkg = "ext::$pkg";	882	$pkg = "ext::$pkg";
491		883
492	warn "loading '$path' into '$pkg'\n";	884	warn "... loading '$path' into '$pkg'\n";
493		885
494	open my $fh, "<:utf8", $path	886	open my $fh, "<:utf8", $path
495	or die "$path: $!";	887	or die "$path: $!";
496		888
497	my $source =	889	my $source =
498	"package $pkg; use strict; use utf8;\n"	890	"package $pkg; use strict; use utf8;\n"
499	. "#line 1 \"$path\"\n{\n"	891	. "#line 1 \"$path\"\n{\n"
500	. (do { local $/; <$fh> })	892	. (do { local $/; <$fh> })
501	. "\n};\n1";	893	. "\n};\n1";
502		894
503	eval $source	895	unless (eval $source) {
504	or die "$path: $@";	896	my $msg = $@ ? "$path: $@\n"
505		897	: "extension disabled.\n";
506	push @exts, $pkg;	898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
507	$ext_pkg{$base} = $pkg;	899	warn $@;
508		900	warn "mandatory extension failed to load, exiting.\n";
509	# no strict 'refs';	901	exit 1;
510	# @{"$pkg\::ISA"} = ext::;	902	}
511		903	die $@;
512	register $base, $pkg;
513	}
514
515	sub unload_extension {
516	my ($pkg) = @_;
517
518	warn "removing extension $pkg\n";
519
520	# remove hooks
521	#TODO
522	# for my $idx (0 .. $#PLUGIN_EVENT) {
523	# delete $hook[$idx]{$pkg};
524	# }	904	}
525		905
526	# remove commands	906	push @EXTS, $pkg;
527	for my $name (keys %command) {
528	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
529
530	if (@cb) {
531	$command{$name} = \@cb;
532	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
533	} else {
534	delete $command{$name};
535	delete $COMMAND{"$name\000"};
536	}
537	}
538
539	# remove extcmds
540	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
541	delete $extcmd{$name};
542	}
543
544	if (my $cb = $pkg->can ("unload")) {
545	eval {
546	$cb->($pkg);
547	1
548	} or warn "$pkg unloaded, but with errors: $@";
549	}
550
551	Symbol::delete_package $pkg;
552	}	907	}
553		908
554	sub load_extensions {	909	sub load_extensions {
555	my $LIBDIR = maps_directory "perl";
556
557	for my $ext (<$LIBDIR/*.ext>) {	910	for my $ext (<$LIBDIR/*.ext>) {
558	next unless -r $ext;	911	next unless -r $ext;
559	eval {	912	eval {
560	load_extension $ext;	913	load_extension $ext;
561	1	914	1
562	} or warn "$ext not loaded: $@";	915	} or warn "$ext not loaded: $@";
563	}	916	}
564	}	917	}
565		918
566	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	=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	# map plan:
		1182	#
		1183	# /! non-realised random map exit (special hack!)
		1184	# {... are special paths that are not being touched
		1185	# ?xxx/... are special absolute paths
		1186	# ?random/... random maps
		1187	# /... normal maps
		1188	# ~user/... per-player map of a specific user
		1189
		1190	$path =~ s/$PATH_SEP/\//go;
		1191
		1192	# treat it as relative path if it starts with
		1193	# something that looks reasonable
		1194	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1195	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1196
		1197	$base =~ s{[^/]+/?$}{};
		1198	$path = "$base/$path";
		1199	}
		1200
		1201	for ($path) {
		1202	redo if s{//}{/};
		1203	redo if s{/\.?/}{/};
		1204	redo if s{/[^/]+/\.\./}{/};
		1205	}
		1206
		1207	$path
		1208	}
		1209
		1210	sub new_from_path {
		1211	my (undef, $path, $base) = @_;
		1212
		1213	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1214
		1215	$path = normalise $path, $base;
		1216
		1217	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1218	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1219	my $self = bless cf::map::new, $pkg;
		1220	$self->{path} = $path; $self->path ($path);
		1221	$self->init; # pass $1 etc.
		1222	return $self;
		1223	}
		1224	}
		1225
		1226	Carp::carp "unable to resolve path '$path'.";
		1227	()
		1228	}
		1229
		1230	sub init {
		1231	my ($self) = @_;
		1232
		1233	$self
		1234	}
		1235
		1236	sub as_string {
		1237	my ($self) = @_;
		1238
		1239	"$self->{path}"
		1240	}
		1241
		1242	# the displayed name, this is a one way mapping
		1243	sub visible_name {
		1244	&as_string
		1245	}
		1246
		1247	# the original (read-only) location
		1248	sub load_path {
		1249	my ($self) = @_;
		1250
		1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		1252	}
		1253
		1254	# the temporary/swap location
		1255	sub save_path {
		1256	my ($self) = @_;
		1257
		1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path
		1260	}
		1261
		1262	# the unique path, undef == no special unique path
		1263	sub uniq_path {
		1264	my ($self) = @_;
		1265
		1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
		1268	}
		1269
		1270	# and all this just because we cannot iterate over
		1271	# all maps in C++...
		1272	sub change_all_map_light {
		1273	my ($change) = @_;
		1274
		1275	$_->change_map_light ($change)
		1276	for grep $_->outdoor, values %cf::MAP;
		1277	}
		1278
		1279	sub unlink_save {
		1280	my ($self) = @_;
		1281
		1282	utf8::encode (my $save = $self->save_path);
		1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1284	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1285	}
		1286
		1287	sub load_header_from($) {
		1288	my ($self, $path) = @_;
		1289
		1290	utf8::encode $path;
		1291	aio_open $path, O_RDONLY, 0
		1292	or return;
		1293
		1294	$self->_load_header ($path)
		1295	or return;
		1296
		1297	$self->{load_path} = $path;
		1298
		1299	1
		1300	}
		1301
		1302	sub load_header_orig {
		1303	my ($self) = @_;
		1304
		1305	$self->load_header_from ($self->load_path)
		1306	}
		1307
		1308	sub load_header_temp {
		1309	my ($self) = @_;
		1310
		1311	$self->load_header_from ($self->save_path)
		1312	}
		1313
		1314	sub prepare_temp {
		1315	my ($self) = @_;
		1316
		1317	$self->last_access ((delete $self->{last_access})
		1318	|| $cf::RUNTIME); #d#
		1319	# safety
		1320	$self->{instantiate_time} = $cf::RUNTIME
		1321	if $self->{instantiate_time} > $cf::RUNTIME;
		1322	}
		1323
		1324	sub prepare_orig {
		1325	my ($self) = @_;
		1326
		1327	$self->{load_original} = 1;
		1328	$self->{instantiate_time} = $cf::RUNTIME;
		1329	$self->last_access ($cf::RUNTIME);
		1330	$self->instantiate;
		1331	}
		1332
		1333	sub load_header {
		1334	my ($self) = @_;
		1335
		1336	if ($self->load_header_temp) {
		1337	$self->prepare_temp;
		1338	} else {
		1339	$self->load_header_orig
		1340	or return;
		1341	$self->prepare_orig;
		1342	}
		1343
		1344	1
		1345	}
		1346
		1347	sub find;
		1348	sub find {
		1349	my ($path, $origin) = @_;
		1350
		1351	$path = normalise $path, $origin && $origin->path;
		1352
		1353	cf::lock_wait "map_find:$path";
		1354
		1355	$cf::MAP{$path} || do {
		1356	my $guard = cf::lock_acquire "map_find:$path";
		1357	my $map = new_from_path cf::map $path
		1358	or return;
		1359
		1360	$map->{last_save} = $cf::RUNTIME;
		1361
		1362	$map->load_header
		1363	or return;
		1364
		1365	if ($map->should_reset) {
		1366	# doing this can freeze the server in a sync job, obviously
		1367	#$cf::WAIT_FOR_TICK->wait;
		1368	$map->reset;
		1369	undef $guard;
		1370	$map = find $path
		1371	or return;
		1372	}
		1373
		1374	$cf::MAP{$path} = $map
		1375	}
		1376	}
		1377
		1378	sub pre_load { }
		1379	sub post_load { }
		1380
		1381	sub load {
		1382	my ($self) = @_;
		1383
		1384	my $path = $self->{path};
		1385	my $guard = cf::lock_acquire "map_load:$path";
		1386
		1387	return if $self->in_memory != cf::MAP_SWAPPED;
		1388
		1389	$self->in_memory (cf::MAP_LOADING);
		1390
		1391	$self->alloc;
		1392
		1393	$self->pre_load;
		1394
		1395	$self->_load_objects ($self->{load_path}, 1)
		1396	or return;
		1397
		1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1399	if delete $self->{load_original};
		1400
		1401	if (my $uniq = $self->uniq_path) {
		1402	utf8::encode $uniq;
		1403	if (aio_open $uniq, O_RDONLY, 0) {
		1404	$self->clear_unique_items;
		1405	$self->_load_objects ($uniq, 0);
		1406	}
		1407	}
		1408
		1409	Coro::cede;
		1410
		1411	# now do the right thing for maps
		1412	$self->link_multipart_objects;
		1413
		1414	unless ($self->{deny_activate}) {
		1415	$self->decay_objects;
		1416	$self->fix_auto_apply;
		1417	$self->update_buttons;
		1418	Coro::cede;
		1419	$self->set_darkness_map;
		1420	$self->difficulty ($self->estimate_difficulty)
		1421	unless $self->difficulty;
		1422	Coro::cede;
		1423	$self->activate;
		1424	}
		1425
		1426	$self->post_load;
		1427
		1428	$self->in_memory (cf::MAP_IN_MEMORY);
		1429	}
		1430
		1431	sub customise_for {
		1432	my ($self, $ob) = @_;
		1433
		1434	return find "~" . $ob->name . "/" . $self->{path}
		1435	if $self->per_player;
		1436
		1437	$self
		1438	}
		1439
		1440	# find and load all maps in the 3x3 area around a map
		1441	sub load_diag {
567	my ($msg) = @_;	1442	my ($map) = @_;
568		1443
569	$msg->("reloading...");	1444	my @diag; # diagonal neighbours
570		1445
571	eval {	1446	for (0 .. 3) {
572	# 1. cancel all watchers	1447	my $neigh = $map->tile_path ($_)
573	$_->cancel for Event::all_watchers;	1448	or next;
		1449	$neigh = find $neigh, $map
		1450	or next;
		1451	$neigh->load;
574		1452
575	# 2. unload all extensions	1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
576	for (@exts) {	1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];
577	$msg->("unloading <$_>");	1455	}
578	unload_extension $_;
579	}
580		1456
581	# 3. unload all modules loaded from $LIBDIR	1457	for (@diag) {
582	while (my ($k, $v) = each %INC) {	1458	my $neigh = find @$_
583	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1459	or next;
		1460	$neigh->load;
		1461	}
		1462	}
584		1463
585	$msg->("removing <$k>");	1464	sub find_sync {
586	delete $INC{$k};	1465	my ($path, $origin) = @_;
587		1466
588	$k =~ s/\.pm$//;	1467	cf::sync_job { find $path, $origin }
589	$k =~ s/\//::/g;	1468	}
590		1469
591	if (my $cb = $k->can ("unload_module")) {	1470	sub do_load_sync {
592	$cb->();	1471	my ($map) = @_;
		1472
		1473	cf::sync_job { $map->load };
		1474	}
		1475
		1476	our %MAP_PREFETCH;
		1477	our $MAP_PREFETCHER = undef;
		1478
		1479	sub find_async {
		1480	my ($path, $origin) = @_;
		1481
		1482	$path = normalise $path, $origin && $origin->{path};
		1483
		1484	if (my $map = $cf::MAP{$path}) {
		1485	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1486	}
		1487
		1488	undef $MAP_PREFETCH{$path};
		1489	$MAP_PREFETCHER ||= cf::async {
		1490	while (%MAP_PREFETCH) {
		1491	for my $path (keys %MAP_PREFETCH) {
		1492	my $map = find $path
		1493	or next;
		1494	$map->load;
		1495
		1496	delete $MAP_PREFETCH{$path};
593	}	1497	}
594
595	Symbol::delete_package $k;
596	}
597
598	# 4. get rid of safe::, as good as possible
599	Symbol::delete_package "safe::$_"
600	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
601
602	# 5. remove register_script_function callbacks
603	# TODO
604		1498	}
605	# 6. unload cf.pm "a bit"	1499	undef $MAP_PREFETCHER;
606	delete $INC{"cf.pm"};
607
608	# don't, removes xs symbols, too,
609	# and global variables created in xs
610	#Symbol::delete_package __PACKAGE__;
611
612	# 7. reload cf.pm
613	$msg->("reloading cf.pm");
614	require cf;
615	};	1500	};
616	$msg->($@) if $@;	1501	$MAP_PREFETCHER->prio (6);
617		1502
618	$msg->("reloaded");	1503	()
619	};	1504	}
620		1505
621	sub perl_reload() {	1506	sub save {
622	_perl_reload {	1507	my ($self) = @_;
623	warn $_[0];	1508
624	print "$_[0]\n";	1509	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1510
		1511	$self->{last_save} = $cf::RUNTIME;
		1512
		1513	return unless $self->dirty;
		1514
		1515	my $save = $self->save_path; utf8::encode $save;
		1516	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1517
		1518	$self->{load_path} = $save;
		1519
		1520	return if $self->{deny_save};
		1521
		1522	local $self->{last_access} = $self->last_access;#d#
		1523
		1524	cf::async {
		1525	$_->contr->save for $self->players;
625	};	1526	};
626	}
627		1527
628	register_command "perl-reload", 0, sub {	1528	if ($uniq) {
629	my ($who, $arg) = @_;	1529	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
630		1530	$self->_save_objects ($uniq, cf::IO_UNIQUES);
631	if ($who->flag (FLAG_WIZ)) {
632	_perl_reload {
633	warn $_[0];
634	$who->message ($_[0]);
635	};
636	}
637	};
638
639	#############################################################################
640	# extcmd framework, basically convert ext <msg>
641	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
642
643	attach_to_players
644	on_extcmd => sub {
645	my ($pl, $buf) = @_;
646
647	my $msg = eval { from_json $buf };
648
649	if (ref $msg) {
650	if (my $cb = $extcmd{$msg->{msgtype}}) {
651	if (my %reply = $cb->[0]->($pl, $msg)) {
652	$pl->ext_reply ($msg->{msgid}, %reply);
653	}
654	}
655	} else {	1531	} else {
656	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1532	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
657	}
658
659	cf::override;
660	},	1533	}
661	;	1534	}
662		1535
663	#############################################################################	1536	sub swap_out {
664	# load/save/clean perl data associated with a map
665
666	*cf::mapsupport::on_clean = sub {
667	my ($map) = @_;	1537	my ($self) = @_;
668		1538
669	my $path = $map->tmpname;	1539	# save first because save cedes
670	defined $path or return;	1540	$self->save;
671		1541
672	unlink "$path.cfperl";	1542	my $lock = cf::lock_acquire "map_data:" . $self->path;
673	unlink "$path.pst";
674	};
675		1543
676	*cf::mapsupport::on_swapin =	1544	return if $self->players;
677	*cf::mapsupport::on_load = sub {	1545	return if $self->in_memory != cf::MAP_IN_MEMORY;
		1546	return if $self->{deny_save};
		1547
		1548	$self->clear;
		1549	$self->in_memory (cf::MAP_SWAPPED);
		1550	}
		1551
		1552	sub reset_at {
678	my ($map) = @_;	1553	my ($self) = @_;
679		1554
680	my $path = $map->tmpname;	1555	# TODO: safety, remove and allow resettable per-player maps
681	$path = $map->path unless defined $path;	1556	return 1e99 if $self->isa ("ext::map_per_player");#d#
		1557	return 1e99 if $self->{deny_reset};
682		1558
683	open my $fh, "<:raw", "$path.cfperl"	1559	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
684	or return; # no perl data	1560	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
685		1561
686	my $data = Storable::thaw do { local $/; <$fh> };	1562	$time + $to
		1563	}
687		1564
688	$data->{version} <= 1	1565	sub should_reset {
		1566	my ($self) = @_;
		1567
		1568	$self->reset_at <= $cf::RUNTIME
		1569	}
		1570
		1571	sub reset {
		1572	my ($self) = @_;
		1573
		1574	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1575
		1576	return if $self->players;
		1577	return if $self->isa ("ext::map_per_player");#d#
		1578
		1579	warn "resetting map ", $self->path;#d#
		1580
		1581	delete $cf::MAP{$self->path};
		1582
		1583	$self->in_memory (cf::MAP_SWAPPED);
		1584	$self->clear;
		1585
		1586	$_->clear_links_to ($self) for values %cf::MAP;
		1587
		1588	$self->unlink_save;
		1589	$self->destroy;
		1590	}
		1591
		1592	my $nuke_counter = "aaaa";
		1593
		1594	sub nuke {
		1595	my ($self) = @_;
		1596
		1597	delete $cf::MAP{$self->path};
		1598
		1599	$self->unlink_save;
		1600
		1601	bless $self, "cf::map";
		1602	delete $self->{deny_reset};
		1603	$self->{deny_save} = 1;
		1604	$self->reset_timeout (1);
		1605	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1606
		1607	$cf::MAP{$self->path} = $self;
		1608
		1609	$self->reset; # polite request, might not happen
		1610	}
		1611
		1612	=item cf::map::unique_maps
		1613
		1614	Returns an arrayref of paths of all shared maps that have
		1615	instantiated unique items. May block.
		1616
		1617	=cut
		1618
		1619	sub unique_maps() {
		1620	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
689	or return; # too new	1621	or return;
690		1622
691	$map->_set_obs ($data->{obs});	1623	my @paths;
692	$map->invoke (EVENT_MAP_UPGRADE);
693	};
694		1624
695	attach_to_maps prio => -10000, package => cf::mapsupport::;	1625	for (@$files) {
		1626	utf8::decode $_;
		1627	next if /\.pst$/;
		1628	next unless /^$PATH_SEP/o;
696		1629
697	#############################################################################	1630	s/\.map$//;
698	# load/save perl data associated with player->ob objects	1631	push @paths, $_;
699
700	sub all_objects(@) {
701	@_, map all_objects ($_->inv), @_
702	}
703
704	attach_to_players
705	on_load => sub {
706	my ($pl, $path) = @_;
707
708	for my $o (all_objects $pl->ob) {
709	if (my $value = $o->get_ob_key_value ("_perl_data")) {
710	$o->set_ob_key_value ("_perl_data");
711
712	%$o = %{ Storable::thaw pack "H*", $value };
713	}
714	}
715	},	1632	}
716	;
717		1633
718	#############################################################################	1634	\@paths
719	# core extensions - in perl
720
721	=item cf::player::exists $login
722
723	Returns true when the given account exists.
724
725	=cut
726
727	sub cf::player::exists($) {
728	cf::player::find $_[0]
729	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
730	}	1635	}
731		1636
		1637	package cf;
		1638
		1639	=back
		1640
		1641	=head3 cf::object
		1642
		1643	=cut
		1644
		1645	package cf::object;
		1646
		1647	=over 4
		1648
		1649	=item $ob->inv_recursive
		1650
		1651	Returns the inventory of the object _and_ their inventories, recursively.
		1652
		1653	=cut
		1654
		1655	sub inv_recursive_;
		1656	sub inv_recursive_ {
		1657	map { $_, inv_recursive_ $_->inv } @_
		1658	}
		1659
		1660	sub inv_recursive {
		1661	inv_recursive_ inv $_[0]
		1662	}
		1663
		1664	package cf;
		1665
		1666	=back
		1667
		1668	=head3 cf::object::player
		1669
		1670	=over 4
		1671
732	=item $player->reply ($npc, $msg[, $flags])	1672	=item $player_object->reply ($npc, $msg[, $flags])
733		1673
734	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
735	can be C<undef>. Does the right thing when the player is currently in a	1675	can be C<undef>. Does the right thing when the player is currently in a
736	dialogue with the given NPC character.	1676	dialogue with the given NPC character.
737		1677
738	=cut	1678	=cut
739		1679
740	# rough implementation of a future "reply" method that works	1680	# rough implementation of a future "reply" method that works
741	# with dialog boxes.	1681	# with dialog boxes.
		1682	#TODO: the first argument must go, split into a $npc->reply_to ( method
742	sub cf::object::player::reply($$$;$) {	1683	sub cf::object::player::reply($$$;$) {
743	my ($self, $npc, $msg, $flags) = @_;	1684	my ($self, $npc, $msg, $flags) = @_;
744		1685
745	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
746		1687
…		…
750	$msg = $npc->name . " says: $msg" if $npc;	1691	$msg = $npc->name . " says: $msg" if $npc;
751	$self->message ($msg, $flags);	1692	$self->message ($msg, $flags);
752	}	1693	}
753	}	1694	}
754		1695
755	=item $player->ext_reply ($msgid, $msgtype, %msg)	1696	=item $player_object->may ("access")
756		1697
757	Sends an ext reply to the player.	1698	Returns wether the given player is authorized to access resource "access"
		1699	(e.g. "command_wizcast").
758		1700
759	=cut	1701	=cut
760		1702
761	sub cf::player::ext_reply($$$%) {	1703	sub cf::object::player::may {
		1704	my ($self, $access) = @_;
		1705
		1706	$self->flag (cf::FLAG_WIZ) ||
		1707	(ref $cf::CFG{"may_$access"}
		1708	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
		1709	: $cf::CFG{"may_$access"})
		1710	}
		1711
		1712	=item $player_object->enter_link
		1713
		1714	Freezes the player and moves him/her to a special map (C<{link}>).
		1715
		1716	The player should be reasonably safe there for short amounts of time. You
		1717	I<MUST> call C<leave_link> as soon as possible, though.
		1718
		1719	Will never block.
		1720
		1721	=item $player_object->leave_link ($map, $x, $y)
		1722
		1723	Moves the player out of the special C<{link}> map onto the specified
		1724	map. If the map is not valid (or omitted), the player will be moved back
		1725	to the location he/she was before the call to C<enter_link>, or, if that
		1726	fails, to the emergency map position.
		1727
		1728	Might block.
		1729
		1730	=cut
		1731
		1732	sub link_map {
		1733	unless ($LINK_MAP) {
		1734	$LINK_MAP = cf::map::find "{link}"
		1735	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };
		1736	$LINK_MAP->load;
		1737	}
		1738
		1739	$LINK_MAP
		1740	}
		1741
		1742	sub cf::object::player::enter_link {
		1743	my ($self) = @_;
		1744
		1745	$self->deactivate_recursive;
		1746
		1747	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1748
		1749	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		1750	if $self->map;
		1751
		1752	$self->enter_map ($LINK_MAP || link_map, 20, 20);
		1753	}
		1754
		1755	sub cf::object::player::leave_link {
		1756	my ($self, $map, $x, $y) = @_;
		1757
		1758	my $link_pos = delete $self->{_link_pos};
		1759
		1760	unless ($map) {
		1761	# restore original map position
		1762	($map, $x, $y) = @{ $link_pos || [] };
		1763	$map = cf::map::find $map;
		1764
		1765	unless ($map) {
		1766	($map, $x, $y) = @$EMERGENCY_POSITION;
		1767	$map = cf::map::find $map
		1768	or die "FATAL: cannot load emergency map\n";
		1769	}
		1770	}
		1771
		1772	($x, $y) = (-1, -1)
		1773	unless (defined $x) && (defined $y);
		1774
		1775	# use -1 or undef as default coordinates, not 0, 0
		1776	($x, $y) = ($map->enter_x, $map->enter_y)
		1777	if $x <=0 && $y <= 0;
		1778
		1779	$map->load;
		1780	$map->load_diag;
		1781
		1782	return unless $self->contr->active;
		1783	$self->activate_recursive;
		1784	$self->enter_map ($map, $x, $y);
		1785	}
		1786
		1787	cf::player->attach (
		1788	on_logout => sub {
		1789	my ($pl) = @_;
		1790
		1791	# abort map switching before logout
		1792	if ($pl->ob->{_link_pos}) {
		1793	cf::sync_job {
		1794	$pl->ob->leave_link
		1795	};
		1796	}
		1797	},
		1798	on_login => sub {
		1799	my ($pl) = @_;
		1800
		1801	# try to abort aborted map switching on player login :)
		1802	# should happen only on crashes
		1803	if ($pl->ob->{_link_pos}) {
		1804	$pl->ob->enter_link;
		1805	(async {
		1806	# we need this sleep as the login has a concurrent enter_exit running
		1807	# and this sleep increases chances of the player not ending up in scorn
		1808	$pl->ob->reply (undef,
		1809	"There was an internal problem at your last logout, "
		1810	. "the server will try to bring you to your intended destination in a second.",
		1811	cf::NDI_RED);
		1812	Coro::Timer::sleep 1;
		1813	$pl->ob->leave_link;
		1814	})->prio (2);
		1815	}
		1816	},
		1817	);
		1818
		1819	=item $player_object->goto ($path, $x, $y)
		1820
		1821	=cut
		1822
		1823	sub cf::object::player::goto {
		1824	my ($self, $path, $x, $y) = @_;
		1825
		1826	$self->enter_link;
		1827
		1828	(async {
		1829	my $map = cf::map::find $path;
		1830	$map = $map->customise_for ($self) if $map;
		1831
		1832	# warn "entering ", $map->path, " at ($x, $y)\n"
		1833	# if $map;
		1834
		1835	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1836
		1837	$self->leave_link ($map, $x, $y);
		1838	})->prio (1);
		1839	}
		1840
		1841	=item $player_object->enter_exit ($exit_object)
		1842
		1843	=cut
		1844
		1845	sub parse_random_map_params {
		1846	my ($spec) = @_;
		1847
		1848	my $rmp = { # defaults
		1849	xsize => (cf::rndm 15, 40),
		1850	ysize => (cf::rndm 15, 40),
		1851	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1852	#layout => string,
		1853	};
		1854
		1855	for (split /\n/, $spec) {
		1856	my ($k, $v) = split /\s+/, $_, 2;
		1857
		1858	$rmp->{lc $k} = $v if (length $k) && (length $v);
		1859	}
		1860
		1861	$rmp
		1862	}
		1863
		1864	sub prepare_random_map {
		1865	my ($exit) = @_;
		1866
		1867	my $guard = cf::lock_acquire "exit_prepare:$exit";
		1868
		1869	# all this does is basically replace the /! path by
		1870	# a new random map path (?random/...) with a seed
		1871	# that depends on the exit object
		1872
		1873	my $rmp = parse_random_map_params $exit->msg;
		1874
		1875	if ($exit->map) {
		1876	$rmp->{region} = $exit->map->region_name;
		1877	$rmp->{origin_map} = $exit->map->path;
		1878	$rmp->{origin_x} = $exit->x;
		1879	$rmp->{origin_y} = $exit->y;
		1880	}
		1881
		1882	$rmp->{random_seed} ||= $exit->random_seed;
		1883
		1884	my $data = cf::to_json $rmp;
		1885	my $md5 = Digest::MD5::md5_hex $data;
		1886	my $meta = "$cf::RANDOM_MAPS/$md5.meta";
		1887
		1888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		1889	aio_write $fh, 0, (length $data), $data, 0;
		1890	undef $fh;
		1891	aio_rename "$meta~", $meta;
		1892
		1893	$exit->slaying ("?random/$md5");
		1894	$exit->msg (undef);
		1895	}
		1896	}
		1897
		1898	sub cf::object::player::enter_exit {
762	my ($self, $id, %msg) = @_;	1899	my ($self, $exit) = @_;
763		1900
764	$msg{msgid} = $id;	1901	return unless $self->type == cf::PLAYER;
765		1902
766	$self->send ("ext " . to_json \%msg);	1903	$self->enter_link;
767	}
768		1904
769	#############################################################################	1905	(async {
770	# map scripting support	1906	$self->deactivate_recursive; # just to be sure
		1907	unless (eval {
		1908	prepare_random_map $exit
		1909	if $exit->slaying eq "/!";
		1910
		1911	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
		1912	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
		1913
		1914	1;
		1915	}) {
		1916	$self->message ("Something went wrong deep within the crossfire server. "
		1917	. "I'll try to bring you back to the map you were before. "
		1918	. "Please report this to the dungeon master!",
		1919	cf::NDI_UNIQUE | cf::NDI_RED);
		1920
		1921	warn "ERROR in enter_exit: $@";
		1922	$self->leave_link;
		1923	}
		1924	})->prio (1);
		1925	}
		1926
		1927	=head3 cf::client
		1928
		1929	=over 4
		1930
		1931	=item $client->send_drawinfo ($text, $flags)
		1932
		1933	Sends a drawinfo packet to the client. Circumvents output buffering so
		1934	should not be used under normal circumstances.
		1935
		1936	=cut
		1937
		1938	sub cf::client::send_drawinfo {
		1939	my ($self, $text, $flags) = @_;
		1940
		1941	utf8::encode $text;
		1942	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1943	}
		1944
		1945
		1946	=item $success = $client->query ($flags, "text", \&cb)
		1947
		1948	Queues a query to the client, calling the given callback with
		1949	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1950	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1951
		1952	Queries can fail, so check the return code. Or don't, as queries will become
		1953	reliable at some point in the future.
		1954
		1955	=cut
		1956
		1957	sub cf::client::query {
		1958	my ($self, $flags, $text, $cb) = @_;
		1959
		1960	return unless $self->state == ST_PLAYING
		1961	|| $self->state == ST_SETUP
		1962	|| $self->state == ST_CUSTOM;
		1963
		1964	$self->state (ST_CUSTOM);
		1965
		1966	utf8::encode $text;
		1967	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1968
		1969	$self->send_packet ($self->{query_queue}[0][0])
		1970	if @{ $self->{query_queue} } == 1;
		1971	}
		1972
		1973	cf::client->attach (
		1974	on_reply => sub {
		1975	my ($ns, $msg) = @_;
		1976
		1977	# this weird shuffling is so that direct followup queries
		1978	# get handled first
		1979	my $queue = delete $ns->{query_queue}
		1980	or return; # be conservative, not sure how that can happen, but we saw a crash here
		1981
		1982	(shift @$queue)->[1]->($msg);
		1983
		1984	push @{ $ns->{query_queue} }, @$queue;
		1985
		1986	if (@{ $ns->{query_queue} } == @$queue) {
		1987	if (@$queue) {
		1988	$ns->send_packet ($ns->{query_queue}[0][0]);
		1989	} else {
		1990	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1991	}
		1992	}
		1993	},
		1994	);
		1995
		1996	=item $client->async (\&cb)
		1997
		1998	Create a new coroutine, running the specified callback. The coroutine will
		1999	be automatically cancelled when the client gets destroyed (e.g. on logout,
		2000	or loss of connection).
		2001
		2002	=cut
		2003
		2004	sub cf::client::async {
		2005	my ($self, $cb) = @_;
		2006
		2007	my $coro = &Coro::async ($cb);
		2008
		2009	$coro->on_destroy (sub {
		2010	delete $self->{_coro}{$coro+0};
		2011	});
		2012
		2013	$self->{_coro}{$coro+0} = $coro;
		2014
		2015	$coro
		2016	}
		2017
		2018	cf::client->attach (
		2019	on_destroy => sub {
		2020	my ($ns) = @_;
		2021
		2022	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		2023	},
		2024	);
		2025
		2026	=back
		2027
		2028
		2029	=head2 SAFE SCRIPTING
		2030
		2031	Functions that provide a safe environment to compile and execute
		2032	snippets of perl code without them endangering the safety of the server
		2033	itself. Looping constructs, I/O operators and other built-in functionality
		2034	is not available in the safe scripting environment, and the number of
		2035	functions and methods that can be called is greatly reduced.
		2036
		2037	=cut
771		2038
772	our $safe = new Safe "safe";	2039	our $safe = new Safe "safe";
773	our $safe_hole = new Safe::Hole;	2040	our $safe_hole = new Safe::Hole;
774		2041
775	$SIG{FPE} = 'IGNORE';	2042	$SIG{FPE} = 'IGNORE';
776		2043
777	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2044	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
778		2045
779	# here we export the classes and methods available to script code	2046	# here we export the classes and methods available to script code
780		2047
		2048	=pod
		2049
		2050	The following fucntions and emthods are available within a safe environment:
		2051
		2052	cf::object contr pay_amount pay_player map
		2053	cf::object::player player
		2054	cf::player peaceful
		2055	cf::map trigger
		2056
		2057	=cut
		2058
781	for (	2059	for (
782	["cf::object" => qw(contr pay_amount pay_player)],	2060	["cf::object" => qw(contr pay_amount pay_player map)],
783	["cf::object::player" => qw(player)],	2061	["cf::object::player" => qw(player)],
784	["cf::player" => qw(peaceful)],	2062	["cf::player" => qw(peaceful)],
		2063	["cf::map" => qw(trigger)],
785	) {	2064	) {
786	no strict 'refs';	2065	no strict 'refs';
787	my ($pkg, @funs) = @$_;	2066	my ($pkg, @funs) = @$_;
788	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	2067	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
789	for @funs;	2068	for @funs;
790	}	2069	}
		2070
		2071	=over 4
		2072
		2073	=item @retval = safe_eval $code, [var => value, ...]
		2074
		2075	Compiled and executes the given perl code snippet. additional var/value
		2076	pairs result in temporary local (my) scalar variables of the given name
		2077	that are available in the code snippet. Example:
		2078
		2079	my $five = safe_eval '$first + $second', first => 1, second => 4;
		2080
		2081	=cut
791		2082
792	sub safe_eval($;@) {	2083	sub safe_eval($;@) {
793	my ($code, %vars) = @_;	2084	my ($code, %vars) = @_;
794		2085
795	my $qcode = $code;	2086	my $qcode = $code;
…		…
818	}	2109	}
819		2110
820	wantarray ? @res : $res[0]	2111	wantarray ? @res : $res[0]
821	}	2112	}
822		2113
		2114	=item cf::register_script_function $function => $cb
		2115
		2116	Register a function that can be called from within map/npc scripts. The
		2117	function should be reasonably secure and should be put into a package name
		2118	like the extension.
		2119
		2120	Example: register a function that gets called whenever a map script calls
		2121	C<rent::overview>, as used by the C<rent> extension.
		2122
		2123	cf::register_script_function "rent::overview" => sub {
		2124	...
		2125	};
		2126
		2127	=cut
		2128
823	sub register_script_function {	2129	sub register_script_function {
824	my ($fun, $cb) = @_;	2130	my ($fun, $cb) = @_;
825		2131
826	no strict 'refs';	2132	no strict 'refs';
827	*{"safe::$fun"} = $safe_hole->wrap ($cb);	2133	*{"safe::$fun"} = $safe_hole->wrap ($cb);
828	}	2134	}
829		2135
		2136	=back
		2137
		2138	=cut
		2139
		2140	#############################################################################
		2141
		2142	=head2 EXTENSION DATABASE SUPPORT
		2143
		2144	Crossfire maintains a very simple database for extension use. It can
		2145	currently store anything that can be serialised using Storable, which
		2146	excludes objects.
		2147
		2148	The parameter C<$family> should best start with the name of the extension
		2149	using it, it should be unique.
		2150
		2151	=over 4
		2152
		2153	=item $hashref = cf::db_get $family
		2154
		2155	Return a hashref for use by the extension C<$family>, which can be
		2156	modified. After modifications, you have to call C<cf::db_dirty> or
		2157	C<cf::db_sync>.
		2158
		2159	=item $value = cf::db_get $family => $key
		2160
		2161	Returns a single value from the database
		2162
		2163	=item cf::db_put $family => $hashref
		2164
		2165	Stores the given family hashref into the database. Updates are delayed, if
		2166	you want the data to be synced to disk immediately, use C<cf::db_sync>.
		2167
		2168	=item cf::db_put $family => $key => $value
		2169
		2170	Stores the given C<$value> in the family hash. Updates are delayed, if you
		2171	want the data to be synced to disk immediately, use C<cf::db_sync>.
		2172
		2173	=item cf::db_dirty
		2174
		2175	Marks the database as dirty, to be updated at a later time.
		2176
		2177	=item cf::db_sync
		2178
		2179	Immediately write the database to disk I<if it is dirty>.
		2180
		2181	=cut
		2182
		2183	our $DB;
		2184
		2185	{
		2186	my $path = cf::localdir . "/database.pst";
		2187
		2188	sub db_load() {
		2189	$DB = stat $path ? Storable::retrieve $path : { };
		2190	}
		2191
		2192	my $pid;
		2193
		2194	sub db_save() {
		2195	waitpid $pid, 0 if $pid;
		2196	if (0 == ($pid = fork)) {
		2197	$DB->{_meta}{version} = 1;
		2198	Storable::nstore $DB, "$path~";
		2199	rename "$path~", $path;
		2200	cf::_exit 0 if defined $pid;
		2201	}
		2202	}
		2203
		2204	my $dirty;
		2205
		2206	sub db_sync() {
		2207	db_save if $dirty;
		2208	undef $dirty;
		2209	}
		2210
		2211	my $idle = Event->idle (
		2212	reentrant => 0,
		2213	min => 10,
		2214	max => 20,
		2215	repeat => 0,
		2216	data => WF_AUTOCANCEL,
		2217	cb => \&db_sync,
		2218	);
		2219
		2220	sub db_dirty() {
		2221	$dirty = 1;
		2222	$idle->start;
		2223	}
		2224
		2225	sub db_get($;$) {
		2226	@_ >= 2
		2227	? $DB->{$_[0]}{$_[1]}
		2228	: ($DB->{$_[0]} ||= { })
		2229	}
		2230
		2231	sub db_put($$;$) {
		2232	if (@_ >= 3) {
		2233	$DB->{$_[0]}{$_[1]} = $_[2];
		2234	} else {
		2235	$DB->{$_[0]} = $_[1];
		2236	}
		2237	db_dirty;
		2238	}
		2239
		2240	cf::global->attach (
		2241	prio => 10000,
		2242	on_cleanup => sub {
		2243	db_sync;
		2244	},
		2245	);
		2246	}
		2247
830	#############################################################################	2248	#############################################################################
831	# the server's main()	2249	# the server's main()
832		2250
		2251	sub cfg_load {
		2252	open my $fh, "<:utf8", cf::confdir . "/config"
		2253	or return;
		2254
		2255	local $/;
		2256	*CFG = YAML::Syck::Load <$fh>;
		2257
		2258	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2259
		2260	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2261	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2262
		2263	if (exists $CFG{mlockall}) {
		2264	eval {
		2265	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2266	and die "WARNING: m(un)lockall failed: $!\n";
		2267	};
		2268	warn $@ if $@;
		2269	}
		2270	}
		2271
833	sub main {	2272	sub main {
		2273	# we must not ever block the main coroutine
		2274	local $Coro::idle = sub {
		2275	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2276	(async {
		2277	Event::one_event;
		2278	})->prio (Coro::PRIO_MAX);
		2279	};
		2280
		2281	cfg_load;
		2282	db_load;
		2283	load_extensions;
		2284
		2285	$TICK_WATCHER->start;
834	Event::loop;	2286	Event::loop;
835	}	2287	}
836		2288
837	#############################################################################	2289	#############################################################################
838	# initialisation	2290	# initialisation and cleanup
839		2291
840	register "<global>", __PACKAGE__;	2292	# install some emergency cleanup handlers
		2293	BEGIN {
		2294	for my $signal (qw(INT HUP TERM)) {
		2295	Event->signal (
		2296	reentrant => 0,
		2297	data => WF_AUTOCANCEL,
		2298	signal => $signal,
		2299	cb => sub {
		2300	cf::cleanup "SIG$signal";
		2301	},
		2302	);
		2303	}
		2304	}
		2305
		2306	sub emergency_save() {
		2307	my $freeze_guard = cf::freeze_mainloop;
		2308
		2309	warn "enter emergency perl save\n";
		2310
		2311	cf::sync_job {
		2312	# use a peculiar iteration method to avoid tripping on perl
		2313	# refcount bugs in for. also avoids problems with players
		2314	# and maps saved/destroyed asynchronously.
		2315	warn "begin emergency player save\n";
		2316	for my $login (keys %cf::PLAYER) {
		2317	my $pl = $cf::PLAYER{$login} or next;
		2318	$pl->valid or next;
		2319	$pl->save;
		2320	}
		2321	warn "end emergency player save\n";
		2322
		2323	warn "begin emergency map save\n";
		2324	for my $path (keys %cf::MAP) {
		2325	my $map = $cf::MAP{$path} or next;
		2326	$map->valid or next;
		2327	$map->save;
		2328	}
		2329	warn "end emergency map save\n";
		2330	};
		2331
		2332	warn "leave emergency perl save\n";
		2333	}
		2334
		2335	sub reload() {
		2336	# can/must only be called in main
		2337	if ($Coro::current != $Coro::main) {
		2338	warn "can only reload from main coroutine";
		2339	return;
		2340	}
		2341
		2342	warn "reloading...";
		2343
		2344	warn "cancelling server ticker";
		2345	$TICK_WATCHER->cancel;
		2346
		2347	cf::emergency_save;
		2348
		2349	eval {
		2350	# if anything goes wrong in here, we should simply crash as we already saved
		2351
		2352	warn "syncing database to disk";
		2353	cf::db_sync;
		2354
		2355	warn "cancelling all WF_AUTOCANCEL watchers";
		2356	for (Event::all_watchers) {
		2357	$_->cancel if $_->data & WF_AUTOCANCEL;
		2358	}
		2359
		2360	warn "flushing outstanding aio requests";
		2361	for (;;) {
		2362	IO::AIO::flush;
		2363	Coro::cede;
		2364	last unless IO::AIO::nreqs;
		2365	warn "iterate...";
		2366	}
		2367
		2368	warn "cancelling all extension coros";
		2369	$_->cancel for values %EXT_CORO;
		2370	%EXT_CORO = ();
		2371
		2372	warn "removing commands";
		2373	%COMMAND = ();
		2374
		2375	warn "removing ext commands";
		2376	%EXTCMD = ();
		2377
		2378	warn "unloading/nuking all extensions";
		2379	for my $pkg (@EXTS) {
		2380	warn "... unloading $pkg";
		2381
		2382	if (my $cb = $pkg->can ("unload")) {
		2383	eval {
		2384	$cb->($pkg);
		2385	1
		2386	} or warn "$pkg unloaded, but with errors: $@";
		2387	}
		2388
		2389	warn "... nuking $pkg";
		2390	Symbol::delete_package $pkg;
		2391	}
		2392
		2393	warn "unloading all perl modules loaded from $LIBDIR";
		2394	while (my ($k, $v) = each %INC) {
		2395	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		2396
		2397	warn "... unloading $k";
		2398	delete $INC{$k};
		2399
		2400	$k =~ s/\.pm$//;
		2401	$k =~ s/\//::/g;
		2402
		2403	if (my $cb = $k->can ("unload_module")) {
		2404	$cb->();
		2405	}
		2406
		2407	Symbol::delete_package $k;
		2408	}
		2409
		2410	warn "getting rid of safe::, as good as possible";
		2411	Symbol::delete_package "safe::$_"
		2412	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		2413
		2414	warn "unloading cf.pm \"a bit\"";
		2415	delete $INC{"cf.pm"};
		2416
		2417	# don't, removes xs symbols, too,
		2418	# and global variables created in xs
		2419	#Symbol::delete_package __PACKAGE__;
		2420
		2421	warn "unload completed, starting to reload now";
		2422
		2423	warn "reloading cf.pm";
		2424	require cf;
		2425	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
		2426
		2427	warn "loading config and database again";
		2428	cf::cfg_load;
		2429	cf::db_load;
		2430
		2431	warn "loading extensions";
		2432	cf::load_extensions;
		2433
		2434	warn "reattaching attachments to objects/players";
		2435	_global_reattach;
		2436	warn "reattaching attachments to maps";
		2437	reattach $_ for values %MAP;
		2438
		2439	warn "restarting server ticker";
		2440
		2441	$TICK_WATCHER->start;
		2442	};
		2443
		2444	if ($@) {
		2445	warn $@;
		2446	warn "error while reloading, exiting.";
		2447	exit 1;
		2448	}
		2449
		2450	warn "reloaded";
		2451	};
		2452
		2453	our $RELOAD_WATCHER; # used only during reload
		2454
		2455	register_command "reload" => sub {
		2456	my ($who, $arg) = @_;
		2457
		2458	if ($who->flag (FLAG_WIZ)) {
		2459	$who->message ("reloading server.");
		2460
		2461	# doing reload synchronously and two reloads happen back-to-back,
		2462	# coro crashes during coro_state_free->destroy here.
		2463
		2464	$RELOAD_WATCHER ||= Event->timer (
		2465	reentrant => 0,
		2466	after => 0,
		2467	data => WF_AUTOCANCEL,
		2468	cb => sub {
		2469	reload;
		2470	undef $RELOAD_WATCHER;
		2471	},
		2472	);
		2473	}
		2474	};
841		2475
842	unshift @INC, $LIBDIR;	2476	unshift @INC, $LIBDIR;
843		2477
844	load_extensions;	2478	my $bug_warning = 0;
845		2479
846	$TICK_WATCHER = Event->timer (	2480	$TICK_WATCHER = Event->timer (
		2481	reentrant => 0,
		2482	parked => 1,
847	prio => 1,	2483	prio => -1,
848	at => $NEXT_TICK || 1,	2484	at => $NEXT_TICK || $TICK,
		2485	data => WF_AUTOCANCEL,
849	cb => sub {	2486	cb => sub {
		2487	if ($Coro::current != $Coro::main) {
		2488	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2489	unless ++$bug_warning > 10;
		2490	return;
		2491	}
		2492
		2493	$NOW = Event::time;
		2494
850	cf::server_tick; # one server iteration	2495	cf::server_tick; # one server iteration
851		2496	$RUNTIME += $TICK;
852	my $NOW = Event::time;
853	$NEXT_TICK += $TICK;	2497	$NEXT_TICK += $TICK;
854		2498
		2499	$WAIT_FOR_TICK->broadcast;
		2500	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
		2501
		2502	my $AFTER = Event::time;
		2503	warn $AFTER - $NOW;#d#
		2504
855	# if we are delayed by four ticks, skip them all	2505	# if we are delayed by four ticks or more, skip them all
856	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	2506	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
857		2507
858	$TICK_WATCHER->at ($NEXT_TICK);	2508	$TICK_WATCHER->at ($NEXT_TICK);
859	$TICK_WATCHER->start;	2509	$TICK_WATCHER->start;
860	},	2510	},
861	);	2511	);
862		2512
863	_reload_2;	2513	IO::AIO::max_poll_time $TICK * 0.2;
		2514
		2515	undef $Coro::AIO::WATCHER;
		2516	$AIO_POLL_WATCHER = Event->io (
		2517	reentrant => 0,
		2518	fd => IO::AIO::poll_fileno,
		2519	poll => 'r',
		2520	prio => 6,
		2521	data => WF_AUTOCANCEL,
		2522	cb => \&IO::AIO::poll_cb,
		2523	);
		2524
		2525	$WRITE_RUNTIME_WATCHER = Event->timer (
		2526	reentrant => 0,
		2527	data => WF_AUTOCANCEL,
		2528	after => 1,
		2529	interval => 10,
		2530	prio => 6, # keep it lowest so it acts like a watchdog
		2531	cb => Coro::unblock_sub {
		2532	write_runtime
		2533	or warn "ERROR: unable to write runtime file: $!";
		2534	},
		2535	);
		2536
		2537	END { cf::emergency_save }
864		2538
865	1	2539	1
866		2540

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