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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.123 by root, Tue Jan 2 19:18:33 2007 UTC vs.
Revision 1.366 by root, Tue Sep 11 16:05:35 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
46		88
47	our %CFG;	89	our %CFG;
48		90
49	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	92	our $RUNTIME;
51		93
52	our %MAP; # all maps	94	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	95	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	96	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	97
56	our %EXT_CORO;	98	# used to convert map paths into valid unix filenames by replacing / by ∕
		99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
57		104
58	binmode STDOUT;	105	binmode STDOUT;
59	binmode STDERR;	106	binmode STDERR;
60		107
61	# read virtual server time, if available	108	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
66	}	113	}
67		114
68	mkdir cf::localdir;	115	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		117
74	# a special map that is always available	118	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		119
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	120	sub cf::map::normalise;
78		121
79	#############################################################################	122	#############################################################################
80		123
81	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
82		125
…		…
89	=item $cf::RUNTIME	132	=item $cf::RUNTIME
90		133
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	135	every server tick.
93		136
94	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		140
96	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
98		145
99	=item $cf::NOW	146	=item $cf::NOW
100		147
101	The time of the last (current) server tick.	148	The time of the last (current) server tick.
102		149
103	=item $cf::TICK	150	=item $cf::TICK
104		151
105	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
106		163
107	=item %cf::CFG	164	=item %cf::CFG
108		165
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
111		180
112	=back	181	=back
113		182
114	=cut	183	=cut
115		184
116	BEGIN {	185	BEGIN {
117	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	187	my $msg = join "", @_;
119	utf8::encode $msg;
120		188
121	$msg .= "\n"	189	$msg .= "\n"
122	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
123		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		193
124	LOG llevError, "cfperl: $msg";	194	LOG llevError, $msg;
125	};	195	};
126	}	196	}
127		197
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		205
135	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	207	# within the Safe compartment.
137	for my $pkg (qw(	208	for my $pkg (qw(
138	cf::global cf::attachable	209	cf::global cf::attachable
…		…
147		218
148	$Event::DIED = sub {	219	$Event::DIED = sub {
149	warn "error in event callback: @_";	220	warn "error in event callback: @_";
150	};	221	};
151		222
152	my %ext_pkg;	223	#############################################################################
153	my @exts;
154	my @hook;
155		224
156	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
157		226
158	=over 4	227	=over 4
159		228
160	=cut	229	=item dumpval $ref
161		230
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
		232
		233	sub dumpval {
		234	eval {
		235	local $SIG{__DIE__};
		236	my $d;
		237	if (1) {
		238	$d = new Data::Dumper([$_[0]], ["*var"]);
		239	$d->Terse(1);
		240	$d->Indent(2);
		241	$d->Quotekeys(0);
		242	$d->Useqq(1);
		243	#$d->Bless(...);
		244	$d->Seen($_[1]) if @_ > 1;
		245	$d = $d->Dump();
		246	}
		247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		248	$d
		249	} || "[unable to dump $_[0]: '$@']";
		250	}
163		251
164	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
165		253
166	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
167		255
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
176		257
177	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
178		259
179	=cut	260	=cut
180		261
181	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		263
186	=item my $guard = cf::guard { BLOCK }	264	sub to_json ($) { $json_coder->encode ($_[0]) }
187		265	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		266
208	=item cf::lock_wait $string	267	=item cf::lock_wait $string
209		268
210	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
211		270
212	=item my $lock = cf::lock_acquire $string	271	=item my $lock = cf::lock_acquire $string
213		272
214	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
217	returned.	276	returned.
218		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
219	Lock names should begin with a unique identifier (for example, find_map	281	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	282	uses map_find and cf::map::load uses map_load).
		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
221		287
222	=cut	288	=cut
223		289
224	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
225		292
226	sub lock_wait($) {	293	sub lock_wait($) {
227	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
228		300
229	# wait for lock, if any	301	# wait for lock, if any
230	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
231	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
232	Coro::schedule;	304	Coro::schedule;
…		…
238		310
239	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
240	lock_wait $key;	312	lock_wait $key;
241		313
242	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
243		316
244	cf::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
245	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
247	}	321	}
248	}	322	}
249		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
		330	sub freeze_mainloop {
		331	return unless $TICK_WATCHER->is_active;
		332
		333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
		336	$TICK_WATCHER->stop;
		337	$guard
		338	}
		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
		394	}
		395
		396	=item cf::async { BLOCK }
		397
		398	Currently the same as Coro::async_pool, meaning you cannot use
		399	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		400	thing you are allowed to do is call C<prio> on it.
		401
		402	=cut
		403
		404	BEGIN { *async = \&Coro::async_pool }
		405
250	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
251		407
252	The design of crossfire+ requires that the main coro ($Coro::main) is	408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	409	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
255		412
256	If it must be done, put the blocking parts into C<sync_job>. This will run	413	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	414	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	415	server will be frozen during this time, so the block should either finish
259	fast or be very important.	416	fast or be very important.
…		…
262		419
263	sub sync_job(&) {	420	sub sync_job(&) {
264	my ($job) = @_;	421	my ($job) = @_;
265		422
266	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
267	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
269		428
270	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	430	# (but this is cancel-safe)
272	local $FREEZE = 1;	431	my $freeze_guard = freeze_mainloop;
273		432
274	my $busy = 1;	433	my $busy = 1;
275	my @res;	434	my @res;
276		435
277	(Coro::async {	436	(async {
278	@res = eval { $job->() };	437	@res = eval { $job->() };
279	warn $@ if $@;	438	warn $@ if $@;
280	undef $busy;	439	undef $busy;
281	})->prio (Coro::PRIO_MAX);	440	})->prio (Coro::PRIO_MAX);
282		441
283	while ($busy) {	442	while ($busy) {
284	Coro::cede_notself;	443	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	444	}
		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
287		452
288	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
289	} else {	454	} else {
290	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
291		456
292	$job->()	457	$job->()
293	}	458	}
294	}	459	}
295		460
296	=item $coro = cf::coro { BLOCK }	461	=item $coro = cf::async_ext { BLOCK }
297		462
298	Creates and returns a new coro. This coro is automcatially being canceled	463	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	464	extension calling this is being unloaded.
300		465
301	=cut	466	=cut
302		467
303	sub coro(&) {	468	sub async_ext(&) {
304	my $cb = shift;	469	my $cb = shift;
305		470
306	my $coro; $coro = async {	471	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		472
313	$coro->on_destroy (sub {	473	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	474	delete $EXT_CORO{$coro+0};
315	});	475	});
316	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
317		477
318	$coro	478	$coro
319	}	479	}
320		480
321	sub write_runtime {	481	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		482
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
325	or return;	484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
326		487
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	488	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		489
331	aio_fsync $fh	490	sub fork_call(&@) {
332	and return;	491	my ($cb, @args) = @_;
333		492
334	close $fh	493	# we seemingly have to make a local copy of the whole thing,
335	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
336		496
337	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
338	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
339		501
		502	wantarray ? @res : $res[-1]
		503	}
		504
		505	=item $value = cf::db_get $family => $key
		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
340	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
		630	}
		631
		632	=item cf::datalog type => key => value, ...
		633
		634	Log a datalog packet of the given type with the given key-value pairs.
		635
		636	=cut
		637
		638	sub datalog($@) {
		639	my ($type, %kv) = @_;
		640	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	641	}
342		642
343	=back	643	=back
344		644
345	=cut	645	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		646
467	#############################################################################	647	#############################################################################
468		648
469	=head2 ATTACHABLE OBJECTS	649	=head2 ATTACHABLE OBJECTS
470		650
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
474		654
475	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	657	Crossfire TRT).
478		658
479	=over 4	659	=over 4
480		660
481	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
482		662
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	777	our @CB_MAP = ();
598		778
599	my %attachment;	779	my %attachment;
600		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
601	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
603		789
604	use sort 'stable';	790	use sort 'stable';
605		791
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
640		826
641	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		831
646	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	833	my $pkg = shift @arg;
648		834
649	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
679	}	865	}
680		866
681	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
682	} else {	868	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	870	}
685		871
686	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
687	}	873	}
688		874
…		…
690	if (ref $_[0]) {	876	if (ref $_[0]) {
691	_object_attach @_;	877	_object_attach @_;
692	} else {	878	} else {
693	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
694	}	880	}
		881	_recalc_want;
695	};	882	};
696		883
697	# all those should be optimised	884	# all those should be optimised
698	sub cf::attachable::detach {	885	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
703	reattach ($obj);	890	reattach ($obj);
704	} else {	891	} else {
705	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
706	}	893	}
		894	_recalc_want;
707	};	895	};
708		896
709	sub cf::attachable::attached {	897	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
711		899
…		…
726	";	914	";
727	die if $@;	915	die if $@;
728	}	916	}
729		917
730	our $override;	918	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		920
733	sub override {	921	sub override {
734	$override = 1;	922	$override = 1;
735	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
736	}	924	}
737		925
738	sub do_invoke {	926	sub do_invoke {
739	my $event = shift;	927	my $event = shift;
740	my $callbacks = shift;	928	my $callbacks = shift;
741		929
742	@invoke_results = ();	930	@INVOKE_RESULTS = ();
743		931
744	local $override;	932	local $override;
745		933
746	for (@$callbacks) {	934	for (@$callbacks) {
747	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
764		952
765	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
766		954
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		958
771	=back	959	=back
772		960
773	=cut	961	=cut
774		962
775	#############################################################################	963	#############################################################################
776	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
777		976
778	sub reattach {	977	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		982
782	my $registry = $obj->registry;	983	my $registry = $obj->registry;
783		984
784	@$registry = ();	985	@$registry = ();
785		986
…		…
824	);	1025	);
825		1026
826	sub object_freezer_save {	1027	sub object_freezer_save {
827	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
828		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
829	sync_job {	1032	sync_job {
830	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
831	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
832	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
833		1037
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1042	close $fh;
839		1043
840	if (@$objs) {	1044	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1045	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1050	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
848	}	1052	}
849	} else {	1053	} else {
850	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
856	}	1060	}
857	} else {	1061	} else {
858	aio_unlink $filename;	1062	aio_unlink $filename;
859	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
860	}	1064	}
861	}	1065	};
		1066
		1067	undef $guard;
862	}	1068	}
863		1069
864	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
865	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
866		1072
…		…
871		1077
872	sub object_thawer_load {	1078	sub object_thawer_load {
873	my ($filename) = @_;	1079	my ($filename) = @_;
874		1080
875	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
876		1084
877	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
878	or return;	1086	or return;
879		1087
880	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
881	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
882	or return;	1090	or return;
		1091
		1092	undef $guard;
883	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
884	}	1094	}
885		1095
		1096	utf8::decode (my $decname = $filename);
886	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
888	return ($data, $av);	1100	($data, $av)
889	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
890		1108
891	#############################################################################	1109	#############################################################################
892	# command handling &c	1110	# command handling &c
893		1111
894	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1126	}
909		1127
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1129
912	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
913		1135
914	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
915	called.	1137	called.
916		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
917	=cut	1150	=cut
918		1151
919	sub register_extcmd {	1152	sub register_extcmd {
920	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
921		1154
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
926	}	1162	}
927		1163
928	cf::player->attach (	1164	cf::player->attach (
929	on_command => sub {	1165	on_command => sub {
930	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1175	cf::override;
940	},	1176	},
941	on_extcmd => sub {	1177	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
943		1179
944	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1181
946	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
952	} else {	1197	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1199	}
955		1200
956	cf::override;	1201	cf::override;
957	},	1202	},
958	);	1203	);
959		1204
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
		1310	=item cf::player::find $login
		1311
		1312	Returns the given player object, loading it if necessary (might block).
		1313
		1314	=cut
		1315
		1316	sub playerdir($) {
		1317	"$PLAYERDIR/"
		1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1319	}
		1320
		1321	sub path($) {
		1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1323
		1324	(playerdir $login) . "/playerdata"
		1325	}
		1326
		1327	sub find_active($) {
		1328	$cf::PLAYER{$_[0]}
		1329	and $cf::PLAYER{$_[0]}->active
		1330	and $cf::PLAYER{$_[0]}
		1331	}
		1332
		1333	sub exists($) {
		1334	my ($login) = @_;
		1335
		1336	$cf::PLAYER{$login}
		1337	or cf::sync_job { !aio_stat path $login }
		1338	}
		1339
		1340	sub find($) {
		1341	return $cf::PLAYER{$_[0]} || do {
		1342	my $login = $_[0];
		1343
		1344	my $guard = cf::lock_acquire "user_find:$login";
		1345
		1346	$cf::PLAYER{$_[0]} || do {
		1347	# rename old playerfiles to new ones
		1348	#TODO: remove when no longer required
		1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1352	aio_unlink +(playerdir $login) . "/$login.pl";
		1353
		1354	my $f = new_from_file cf::object::thawer path $login
		1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
		1364	}
		1365	}
		1366
		1367	sub save($) {
		1368	my ($pl) = @_;
		1369
		1370	return if $pl->{deny_save};
		1371
		1372	my $path = path $pl;
		1373	my $guard = cf::lock_acquire "user_save:$path";
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
		1378	$pl->{last_save} = $cf::RUNTIME;
		1379
		1380	$pl->save_pl ($path);
		1381	cf::cede_to_tick;
		1382	}
		1383
		1384	sub new($) {
		1385	my ($login) = @_;
		1386
		1387	my $self = create;
		1388
		1389	$self->ob->name ($login);
		1390	$self->{deny_save} = 1;
		1391
		1392	$cf::PLAYER{$login} = $self;
		1393
		1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
		1414	sub quit_character {
		1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
		1418
		1419	$pl->{deny_save} = 1;
		1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1423	$pl->deactivate;
		1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1425	$pl->ns->destroy if $pl->ns;
		1426
		1427	my $path = playerdir $pl;
		1428	my $temp = "$path~$cf::RUNTIME~deleting~";
		1429	aio_rename $path, $temp;
		1430	delete $cf::PLAYER{$pl->ob->name};
		1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
		1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
		1480	}
		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
		1564	=item $player->ext_reply ($msgid, @msg)
		1565
		1566	Sends an ext reply to the player.
		1567
		1568	=cut
		1569
		1570	sub ext_reply($$@) {
		1571	my ($self, $id, @msg) = @_;
		1572
		1573	$self->ns->ext_reply ($id, @msg)
		1574	}
		1575
		1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
967	my ($path) = @_;	1603	my ($path) = @_;
968		1604
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1605	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1606
975	warn "loading '$path' into '$pkg'\n";	1607	for my $region (list) {
976		1608	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1609	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1610	if $region->specificity > $specificity;
979		1611	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1612	}
1009		1613
1010	# remove commands	1614	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1615	}
1116		1616
1117	=back	1617	=back
1118
1119		1618
1120	=head3 cf::map	1619	=head3 cf::map
1121		1620
1122	=over 4	1621	=over 4
1123		1622
…		…
1126	package cf::map;	1625	package cf::map;
1127		1626
1128	use Fcntl;	1627	use Fcntl;
1129	use Coro::AIO;	1628	use Coro::AIO;
1130		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1131	our $MAX_RESET = 7200;	1634	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1635	our $DEFAULT_RESET = 3000;
1133		1636
1134	sub generate_random_map {	1637	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1640	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1151	}	1780	}
1152		1781
1153	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1154	# all maps in C++...	1783	# all maps in C++...
1155	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1157		1786
1158	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1160	}	1789	}
1161		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1162	sub try_load_header($) {	1807	sub load_header_from($) {
1163	my ($path) = @_;	1808	my ($self, $path) = @_;
1164		1809
1165	utf8::encode $path;	1810	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1167	or return;	1812	or return;
1168		1813
1169	my $map = cf::map::new	1814	$self->_load_header ($f)
1170	or return;	1815	or return;
1171		1816
1172	$map->load_header ($path)	1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
		1819
		1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1173	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1174		1866
1175	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1176		1869
1177	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
1178	}	1871	unless $self->default_region;
1179		1872
		1873	1
		1874	}
		1875
		1876	sub find;
1180	sub find_map {	1877	sub find {
1181	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1182		1879
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1188	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1189		1884
1190	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1192		1888
1193	# do it the slow way	1889	my $map = new_from_path cf::map $path
1194	my $map = try_load_header $path->save_path;
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1890	or return;
1208		1891
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1893
1222	if ($map->should_reset) {	1894	$map->load_header
		1895	or return;
		1896
		1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1223	$map->reset;	1902	$map->reset;
1224	undef $guard;	1903	return find $path;
1225	$map = find_map $path;
1226	}	1904	}
1227		1905
1228	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1229	}	1907	}
1230	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1231		1912
1232	sub load {	1913	sub load {
1233	my ($self) = @_;	1914	my ($self) = @_;
1234		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1235	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1236	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1237		1922
		1923	return unless $self->valid;
1238	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1239		1925
1240	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1241		1927
1242	$self->alloc;	1928	$self->alloc;
1243	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1244	or return;	1936	or return;
1245		1937
1246	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1247	if delete $self->{load_original};	1939	if delete $self->{load_original};
1248		1940
1249	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1250	utf8::encode $uniq;	1942	utf8::encode $uniq;
1251	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1252	$self->clear_unique_items;	1945	$self->clear_unique_items;
1253	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1254	}	1949	}
1255	}	1950	}
1256		1951
		1952	$f->resolve_delayed_derefs;
		1953
		1954	cf::cede_to_tick;
1257	# now do the right thing for maps	1955	# now do the right thing for maps
1258	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1259
1260	if ($self->{path}->is_style_map) {
1261	$self->{deny_save} = 1;
1262	$self->{deny_reset} = 1;
1263	} else {
1264	$self->fix_auto_apply;
1265	$self->decay_objects;
1266	$self->update_buttons;
1267	$self->set_darkness_map;
1268	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1269	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1270	$self->activate;	1968	$self->activate;
1271	}	1969	}
1272		1970
		1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
1273	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
1274	}	1975	}
1275		1976
1276	sub load_map_sync {	1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
		1994	my ($map) = @_;
		1995
		1996	my @neigh; # diagonal neighbours
		1997
		1998	for (0 .. 3) {
		1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
		2004
		2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
		2009
		2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
		2012	my $neigh = find $path, $origin
		2013	or next;
		2014	$neigh->load;
		2015	}
		2016	}
		2017
		2018	sub find_sync {
1277	my ($path, $origin) = @_;	2019	my ($path, $origin) = @_;
1278		2020
1279	#warn "load_map_sync<$path, $origin>\n";#d#	2021	cf::sync_job { find $path, $origin }
		2022	}
1280		2023
1281	cf::sync_job {	2024	sub do_load_sync {
1282	my $map = cf::map::find_map $path, $origin	2025	my ($map) = @_;
1283	or return;	2026
1284	$map->load;	2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1285	$map	2028	if $Coro::current == $Coro::main;
		2029
		2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	while (%MAP_PREFETCH) {
		2049	while (my ($k, $v) = each %MAP_PREFETCH) {
		2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
		2054	delete $MAP_PREFETCH{$k};
		2055	}
		2056	}
		2057	undef $MAP_PREFETCHER;
1286	}	2058	};
		2059	$MAP_PREFETCHER->prio (6);
		2060
		2061	()
1287	}	2062	}
1288		2063
1289	sub save {	2064	sub save {
1290	my ($self) = @_;	2065	my ($self) = @_;
1291		2066
		2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2068
1292	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1293		2070
1294	return unless $self->dirty;	2071	return unless $self->dirty;
1295		2072
1296	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		2075
1299	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1300		2077
1301	return if $self->{deny_save};	2078	return if $self->{deny_save};
1302		2079
		2080	local $self->{last_access} = $self->last_access;#d#
		2081
		2082	cf::async {
		2083	$_->contr->save for $self->players;
		2084	};
		2085
1303	if ($uniq) {	2086	if ($uniq) {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1305	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1306	} else {	2089	} else {
1307	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1308	}	2091	}
1309	}	2092	}
1310		2093
1311	sub swap_out {	2094	sub swap_out {
1312	my ($self) = @_;	2095	my ($self) = @_;
		2096
		2097	# save first because save cedes
		2098	$self->save;
		2099
		2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1313		2101
1314	return if $self->players;	2102	return if $self->players;
1315	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1316	return if $self->{deny_save};	2104	return if $self->{deny_save};
1317		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
1318	$self->save;	2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1319	$self->clear;	2110	$self->clear;
1320	$self->in_memory (cf::MAP_SWAPPED);
1321	}	2111	}
1322		2112
1323	sub reset_at {	2113	sub reset_at {
1324	my ($self) = @_;	2114	my ($self) = @_;
1325		2115
1326	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1327	return 1e99 if $self->{path}{user_rel};
1328	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1329		2118
1330	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1331	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1332		2121
…		…
1337	my ($self) = @_;	2126	my ($self) = @_;
1338		2127
1339	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1340	}	2129	}
1341		2130
1342	sub unlink_save {
1343	my ($self) = @_;
1344
1345	utf8::encode (my $save = $self->{path}->save_path);
1346	aioreq_pri 3; IO::AIO::aio_unlink $save;
1347	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1348	}
1349
1350	sub rename {
1351	my ($self, $new_path) = @_;
1352
1353	$self->unlink_save;
1354
1355	delete $cf::MAP{$self->path};
1356	$self->{path} = new cf::path $new_path;
1357	$self->path ($self->{path}->as_string);
1358	$cf::MAP{$self->path} = $self;
1359
1360	$self->save;
1361	}
1362
1363	sub reset {	2131	sub reset {
1364	my ($self) = @_;	2132	my ($self) = @_;
1365		2133
		2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2135
1366	return if $self->players;	2136	return if $self->players;
1367	return if $self->{path}{user_rel};#d#
1368		2137
1369	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1370		2149
1371	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1372		2151
		2152	$self->deactivate;
1373	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1374		2155
1375	$self->unlink_save;	2156	$self->unlink_save;
1376	$self->destroy;	2157	$self->destroy;
1377	}	2158	}
1378		2159
1379	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1380		2161
1381	sub nuke {	2162	sub nuke {
1382	my ($self) = @_;	2163	my ($self) = @_;
1383		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
		2168	delete $cf::MAP{$self->path};
		2169
		2170	$self->unlink_save;
		2171
		2172	bless $self, "cf::map";
		2173	delete $self->{deny_reset};
1384	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1385	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1386	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1387	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1388	}	2182	}
1389		2183
1390	sub customise_for {	2184	=item $maps = cf::map::tmp_maps
1391	my ($map, $ob) = @_;
1392		2185
1393	if ($map->per_player) {	2186	Returns an arrayref with all map paths of currently instantiated and saved
1394	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
1395	}	2192	[
1396		2193	map {
1397	$map	2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
1398	}	2200	}
1399		2201
1400	sub emergency_save {	2202	=item $maps = cf::map::random_maps
1401	local $cf::FREEZE = 1;
1402		2203
1403	warn "enter emergency map save\n";	2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
1404		2206
1405	cf::sync_job {	2207	=cut
1406	warn "begin emergency map save\n";
1407	$_->save for values %cf::MAP;
1408	};
1409		2208
1410	warn "end emergency map save\n";	2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
		2219
		2220	=item cf::map::unique_maps
		2221
		2222	Returns an arrayref of paths of all shared maps that have
		2223	instantiated unique items. May block.
		2224
		2225	=cut
		2226
		2227	sub unique_maps() {
		2228	[
		2229	map {
		2230	utf8::decode $_;
		2231	/\.map$/
		2232	? normalise $_
		2233	: ()
		2234	} @{ aio_readdir $UNIQUEDIR or [] }
		2235	]
1411	}	2236	}
1412		2237
1413	package cf;	2238	package cf;
1414		2239
1415	=back	2240	=back
1416		2241
		2242	=head3 cf::object
		2243
		2244	=cut
		2245
		2246	package cf::object;
		2247
		2248	=over 4
		2249
		2250	=item $ob->inv_recursive
		2251
		2252	Returns the inventory of the object _and_ their inventories, recursively.
		2253
		2254	=cut
		2255
		2256	sub inv_recursive_;
		2257	sub inv_recursive_ {
		2258	map { $_, inv_recursive_ $_->inv } @_
		2259	}
		2260
		2261	sub inv_recursive {
		2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
		2297
		2298	=back
1417		2299
1418	=head3 cf::object::player	2300	=head3 cf::object::player
1419		2301
1420	=over 4	2302	=over 4
1421		2303
…		…
1435		2317
1436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1437		2319
1438	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1440	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1441	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1442	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1443	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1444	}	2345	}
1445		2346
1446	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1447		2348
1448	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1461		2362
1462	=item $player_object->enter_link	2363	=item $player_object->enter_link
1463		2364
1464	Freezes the player and moves him/her to a special map (C<{link}>).	2365	Freezes the player and moves him/her to a special map (C<{link}>).
1465		2366
1466	The player should be reaosnably safe there for short amounts of time. You	2367	The player should be reasonably safe there for short amounts of time. You
1467	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1468		2369
		2370	Will never block.
		2371
1469	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1470		2373
1471	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1472	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1473	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1474	to the emergency map position.	2377	fails, to the emergency map position.
1475		2378
1476	Might block.	2379	Might block.
1477		2380
1478	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
1479		2392
1480	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1481	my ($self) = @_;	2394	my ($self) = @_;
1482		2395
1483	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1484		2397
1485	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1486		2399
1487	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1488	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1489		2402
1490	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1491	}	2404	}
1492		2405
1493	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1494	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1495		2410
1496	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1497		2412
1498	unless ($map) {	2413	unless ($map) {
1499	# restore original map position	2414	# restore original map position
1500	($map, $x, $y) = @{ $link_pos || [] };	2415	($map, $x, $y) = @{ $link_pos || [] };
1501	$map = cf::map::find_map $map;	2416	$map = cf::map::find $map;
1502		2417
1503	unless ($map) {	2418	unless ($map) {
1504	($map, $x, $y) = @$EMERGENCY_POSITION;	2419	($map, $x, $y) = @$EMERGENCY_POSITION;
1505	$map = cf::map::find_map $map	2420	$map = cf::map::find $map
1506	or die "FATAL: cannot load emergency map\n";	2421	or die "FATAL: cannot load emergency map\n";
1507	}	2422	}
1508	}	2423	}
1509		2424
1510	($x, $y) = (-1, -1)	2425	($x, $y) = (-1, -1)
…		…
1513	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1514	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1515	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1516		2431
1517	$map->load;	2432	$map->load;
		2433	$map->load_neighbours;
1518		2434
		2435	return unless $self->contr->active;
1519	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1520	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1521	}	2440	}
1522		2441
1523	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1524	on_logout => sub {
1525	my ($pl) = @_;
1526		2443
1527	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1528	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1529	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1530	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1531	};	2448	be called at the end of this process.
1532	}
1533	},
1534	on_login => sub {
1535	my ($pl) = @_;
1536		2449
1537	# try to abort aborted map switching on player login :)
1538	# should happen only on crashes
1539	if ($pl->ob->{_link_pos}) {
1540	$pl->ob->enter_link;
1541	Coro::async {
1542	# we need this sleep as the login has a concurrent enter_exit running
1543	# and this sleep increases chances of the player not ending up in scorn
1544	Coro::Timer::sleep 1;
1545	$pl->ob->leave_link;
1546	};
1547	}
1548	},
1549	);
1550
1551	=item $player_object->goto_map ($path, $x, $y)
1552
1553	=cut	2450	=cut
1554		2451
		2452	our $GOTOGEN;
		2453
1555	sub cf::object::player::goto_map {	2454	sub cf::object::player::goto {
1556	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1557		2459
1558	$self->enter_link;	2460	$self->enter_link;
1559		2461
1560	(Coro::async {	2462	(async {
1561	$path = new cf::path $path;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
1562		2467
		2468	# todo: use ob_blocked to check all tiles of the destination "object"
		2469	# for suitability.
		2470
		2471	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2472	}
		2473	}
		2474
		2475	my $map = eval {
1563	my $map = cf::map::find_map $path->as_string;	2476	my $map = cf::map::find $path;
		2477
		2478	if ($map) {
1564	$map = $map->customise_for ($self) if $map;	2479	$map = $map->customise_for ($self);
1565		2480	$map = $check->($map) if $check && $map;
1566	# warn "entering ", $map->path, " at ($x, $y)\n"	2481	} else {
1567	# if $map;
1568
1569	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2482	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2483	}
1570		2484
		2485	$map
		2486	};
		2487
		2488	if ($@) {
		2489	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	LOG llevError | logBacktrace, Carp::longmess $@;
		2491	}
		2492
		2493	if ($gen == $self->{_goto_generation}) {
		2494	delete $self->{_goto_generation};
1571	$self->leave_link ($map, $x, $y);	2495	$self->leave_link ($map, $x, $y);
		2496	}
		2497
		2498	$done->() if $done;
1572	})->prio (1);	2499	})->prio (1);
1573	}	2500	}
1574		2501
1575	=item $player_object->enter_exit ($exit_object)	2502	=item $player_object->enter_exit ($exit_object)
1576		2503
…		…
1578		2505
1579	sub parse_random_map_params {	2506	sub parse_random_map_params {
1580	my ($spec) = @_;	2507	my ($spec) = @_;
1581		2508
1582	my $rmp = { # defaults	2509	my $rmp = { # defaults
1583	xsize => 10,	2510	xsize => (cf::rndm 15, 40),
1584	ysize => 10,	2511	ysize => (cf::rndm 15, 40),
		2512	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2513	#layout => string,
1585	};	2514	};
1586		2515
1587	for (split /\n/, $spec) {	2516	for (split /\n/, $spec) {
1588	my ($k, $v) = split /\s+/, $_, 2;	2517	my ($k, $v) = split /\s+/, $_, 2;
1589		2518
…		…
1593	$rmp	2522	$rmp
1594	}	2523	}
1595		2524
1596	sub prepare_random_map {	2525	sub prepare_random_map {
1597	my ($exit) = @_;	2526	my ($exit) = @_;
		2527
		2528	my $guard = cf::lock_acquire "exit_prepare:$exit";
1598		2529
1599	# all this does is basically replace the /! path by	2530	# all this does is basically replace the /! path by
1600	# a new random map path (?random/...) with a seed	2531	# a new random map path (?random/...) with a seed
1601	# that depends on the exit object	2532	# that depends on the exit object
1602		2533
1603	my $rmp = parse_random_map_params $exit->msg;	2534	my $rmp = parse_random_map_params $exit->msg;
1604		2535
1605	if ($exit->map) {	2536	if ($exit->map) {
1606	$rmp->{region} = $exit->map->region_name;	2537	$rmp->{region} = $exit->region->name;
1607	$rmp->{origin_map} = $exit->map->path;	2538	$rmp->{origin_map} = $exit->map->path;
1608	$rmp->{origin_x} = $exit->x;	2539	$rmp->{origin_x} = $exit->x;
1609	$rmp->{origin_y} = $exit->y;	2540	$rmp->{origin_y} = $exit->y;
1610	}	2541	}
1611		2542
1612	$rmp->{random_seed} ||= $exit->random_seed;	2543	$rmp->{random_seed} ||= $exit->random_seed;
1613		2544
1614	my $data = cf::to_json $rmp;	2545	my $data = cf::to_json $rmp;
1615	my $md5 = Digest::MD5::md5_hex $data;	2546	my $md5 = Digest::MD5::md5_hex $data;
		2547	my $meta = "$RANDOMDIR/$md5.meta";
1616		2548
1617	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2549	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1618	aio_write $fh, 0, (length $data), $data, 0;	2550	aio_write $fh, 0, (length $data), $data, 0;
		2551	undef $fh;
		2552	aio_rename "$meta~", $meta;
1619		2553
1620	$exit->slaying ("?random/$md5");	2554	$exit->slaying ("?random/$md5");
1621	$exit->msg (undef);	2555	$exit->msg (undef);
1622	}	2556	}
1623	}	2557	}
…		…
1625	sub cf::object::player::enter_exit {	2559	sub cf::object::player::enter_exit {
1626	my ($self, $exit) = @_;	2560	my ($self, $exit) = @_;
1627		2561
1628	return unless $self->type == cf::PLAYER;	2562	return unless $self->type == cf::PLAYER;
1629		2563
		2564	if ($exit->slaying eq "/!") {
		2565	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2566	# the problem is that $exit might not survive long enough
		2567	# so it needs to be done right now, right here
		2568	cf::sync_job { prepare_random_map $exit };
		2569	}
		2570
		2571	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2572	my $hp = $exit->stats->hp;
		2573	my $sp = $exit->stats->sp;
		2574
1630	$self->enter_link;	2575	$self->enter_link;
1631		2576
		2577	# if exit is damned, update players death & WoR home-position
		2578	$self->contr->savebed ($slaying, $hp, $sp)
		2579	if $exit->flag (FLAG_DAMNED);
		2580
1632	(Coro::async {	2581	(async {
		2582	$self->deactivate_recursive; # just to be sure
1633	unless (eval {	2583	unless (eval {
1634		2584	$self->goto ($slaying, $hp, $sp);
1635	prepare_random_map $exit
1636	if $exit->slaying eq "/!";
1637
1638	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1639	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1640		2585
1641	1;	2586	1;
1642	}) {	2587	}) {
1643	$self->message ("Something went wrong deep within the crossfire server. "	2588	$self->message ("Something went wrong deep within the crossfire server. "
1644	. "I'll try to bring you back to the map you were before. "	2589	. "I'll try to bring you back to the map you were before. "
1645	. "Please report this to the dungeon master",	2590	. "Please report this to the dungeon master!",
1646	cf::NDI_UNIQUE | cf::NDI_RED);	2591	cf::NDI_UNIQUE | cf::NDI_RED);
1647		2592
1648	warn "ERROR in enter_exit: $@";	2593	warn "ERROR in enter_exit: $@";
1649	$self->leave_link;	2594	$self->leave_link;
1650	}	2595	}
1651	})->prio (1);	2596	})->prio (1);
…		…
1664		2609
1665	sub cf::client::send_drawinfo {	2610	sub cf::client::send_drawinfo {
1666	my ($self, $text, $flags) = @_;	2611	my ($self, $text, $flags) = @_;
1667		2612
1668	utf8::encode $text;	2613	utf8::encode $text;
1669	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2614	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1670	}	2615	}
1671		2616
		2617	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2618
		2619	Send a drawinfo or msg packet to the client, formatting the msg for the
		2620	client if neccessary. C<$type> should be a string identifying the type of
		2621	the message, with C<log> being the default. If C<$color> is negative, suppress
		2622	the message unless the client supports the msg packet.
		2623
		2624	=cut
		2625
		2626	our %CHANNEL = (
		2627	"c/identify" => {
		2628	id => "identify",
		2629	title => "Identify",
		2630	reply => undef,
		2631	tooltip => "Items recently identified",
		2632	},
		2633	"c/examine" => {
		2634	id => "examine",
		2635	title => "Examine",
		2636	reply => undef,
		2637	tooltip => "Signs and other items you examined",
		2638	},
		2639	);
		2640
		2641	sub cf::client::send_msg {
		2642	my ($self, $channel, $msg, $color, @extra) = @_;
		2643
		2644	$msg = $self->pl->expand_cfpod ($msg);
		2645
		2646	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2647
		2648	# check predefined channels, for the benefit of C
		2649	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2650
		2651	if (ref $channel) {
		2652	# send meta info to client, if not yet sent
		2653	unless (exists $self->{channel}{$channel->{id}}) {
		2654	$self->{channel}{$channel->{id}} = $channel;
		2655	$self->ext_msg (channel_info => $channel)
		2656	if $self->can_msg;
		2657	}
		2658
		2659	$channel = $channel->{id};
		2660	}
		2661
		2662	return unless @extra || length $msg;
		2663
		2664	if ($self->can_msg) {
		2665	# default colour, mask it out
		2666	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2667	if $color & cf::NDI_DEF;
		2668
		2669	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2670	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2671	} else {
		2672	if ($color >= 0) {
		2673	# replace some tags by gcfclient-compatible ones
		2674	for ($msg) {
		2675	1 while
		2676	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2677	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2678	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2679	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2680	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2681	}
		2682
		2683	$color &= cf::NDI_COLOR_MASK;
		2684
		2685	utf8::encode $msg;
		2686
		2687	if (0 && $msg =~ /\[/) {
		2688	# COMMAND/INFO
		2689	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2690	} else {
		2691	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2692	$self->send_packet ("drawinfo $color $msg")
		2693	}
		2694	}
		2695	}
		2696	}
		2697
		2698	=item $client->ext_msg ($type, @msg)
		2699
		2700	Sends an ext event to the client.
		2701
		2702	=cut
		2703
		2704	sub cf::client::ext_msg($$@) {
		2705	my ($self, $type, @msg) = @_;
		2706
		2707	if ($self->extcmd == 2) {
		2708	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2709	} elsif ($self->extcmd == 1) { # TODO: remove
		2710	push @msg, msgtype => "event_$type";
		2711	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2712	}
		2713	}
		2714
		2715	=item $client->ext_reply ($msgid, @msg)
		2716
		2717	Sends an ext reply to the client.
		2718
		2719	=cut
		2720
		2721	sub cf::client::ext_reply($$@) {
		2722	my ($self, $id, @msg) = @_;
		2723
		2724	if ($self->extcmd == 2) {
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2726	} elsif ($self->extcmd == 1) {
		2727	#TODO: version 1, remove
		2728	unshift @msg, msgtype => "reply", msgid => $id;
		2729	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2730	}
		2731	}
1672		2732
1673	=item $success = $client->query ($flags, "text", \&cb)	2733	=item $success = $client->query ($flags, "text", \&cb)
1674		2734
1675	Queues a query to the client, calling the given callback with	2735	Queues a query to the client, calling the given callback with
1676	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2736	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1677	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2737	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1678		2738
1679	Queries can fail, so check the return code. Or don't, as queries will become	2739	Queries can fail, so check the return code. Or don't, as queries will
1680	reliable at some point in the future.	2740	become reliable at some point in the future.
1681		2741
1682	=cut	2742	=cut
1683		2743
1684	sub cf::client::query {	2744	sub cf::client::query {
1685	my ($self, $flags, $text, $cb) = @_;	2745	my ($self, $flags, $text, $cb) = @_;
…		…
1693	utf8::encode $text;	2753	utf8::encode $text;
1694	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2754	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1695		2755
1696	$self->send_packet ($self->{query_queue}[0][0])	2756	$self->send_packet ($self->{query_queue}[0][0])
1697	if @{ $self->{query_queue} } == 1;	2757	if @{ $self->{query_queue} } == 1;
		2758
		2759	1
1698	}	2760	}
1699		2761
1700	cf::client->attach (	2762	cf::client->attach (
		2763	on_connect => sub {
		2764	my ($ns) = @_;
		2765
		2766	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2767	},
1701	on_reply => sub {	2768	on_reply => sub {
1702	my ($ns, $msg) = @_;	2769	my ($ns, $msg) = @_;
1703		2770
1704	# this weird shuffling is so that direct followup queries	2771	# this weird shuffling is so that direct followup queries
1705	# get handled first	2772	# get handled first
1706	my $queue = delete $ns->{query_queue};	2773	my $queue = delete $ns->{query_queue}
		2774	or return; # be conservative, not sure how that can happen, but we saw a crash here
1707		2775
1708	(shift @$queue)->[1]->($msg);	2776	(shift @$queue)->[1]->($msg);
		2777	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1709		2778
1710	push @{ $ns->{query_queue} }, @$queue;	2779	push @{ $ns->{query_queue} }, @$queue;
1711		2780
1712	if (@{ $ns->{query_queue} } == @$queue) {	2781	if (@{ $ns->{query_queue} } == @$queue) {
1713	if (@$queue) {	2782	if (@$queue) {
…		…
1715	} else {	2784	} else {
1716	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2785	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1717	}	2786	}
1718	}	2787	}
1719	},	2788	},
		2789	on_exticmd => sub {
		2790	my ($ns, $buf) = @_;
		2791
		2792	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2793
		2794	if (ref $msg) {
		2795	my ($type, $reply, @payload) =
		2796	"ARRAY" eq ref $msg
		2797	? @$msg
		2798	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2799
		2800	my @reply;
		2801
		2802	if (my $cb = $EXTICMD{$type}) {
		2803	@reply = $cb->($ns, @payload);
		2804	}
		2805
		2806	$ns->ext_reply ($reply, @reply)
		2807	if $reply;
		2808
		2809	} else {
		2810	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2811	}
		2812
		2813	cf::override;
		2814	},
1720	);	2815	);
1721		2816
1722	=item $client->coro (\&cb)	2817	=item $client->async (\&cb)
1723		2818
1724	Create a new coroutine, running the specified callback. The coroutine will	2819	Create a new coroutine, running the specified callback. The coroutine will
1725	be automatically cancelled when the client gets destroyed (e.g. on logout,	2820	be automatically cancelled when the client gets destroyed (e.g. on logout,
1726	or loss of connection).	2821	or loss of connection).
1727		2822
1728	=cut	2823	=cut
1729		2824
1730	sub cf::client::coro {	2825	sub cf::client::async {
1731	my ($self, $cb) = @_;	2826	my ($self, $cb) = @_;
1732		2827
1733	my $coro; $coro = async {	2828	my $coro = &Coro::async ($cb);
1734	eval {
1735	$cb->();
1736	};
1737	warn $@ if $@;
1738	};
1739		2829
1740	$coro->on_destroy (sub {	2830	$coro->on_destroy (sub {
1741	delete $self->{_coro}{$coro+0};	2831	delete $self->{_coro}{$coro+0};
1742	});	2832	});
1743		2833
…		…
1770	our $safe = new Safe "safe";	2860	our $safe = new Safe "safe";
1771	our $safe_hole = new Safe::Hole;	2861	our $safe_hole = new Safe::Hole;
1772		2862
1773	$SIG{FPE} = 'IGNORE';	2863	$SIG{FPE} = 'IGNORE';
1774		2864
1775	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2865	$safe->permit_only (Opcode::opset qw(
		2866	:base_core :base_mem :base_orig :base_math
		2867	grepstart grepwhile mapstart mapwhile
		2868	sort time
		2869	));
1776		2870
1777	# here we export the classes and methods available to script code	2871	# here we export the classes and methods available to script code
1778		2872
1779	=pod	2873	=pod
1780		2874
1781	The following fucntions and emthods are available within a safe environment:	2875	The following functions and methods are available within a safe environment:
1782		2876
1783	cf::object contr pay_amount pay_player map	2877	cf::object
		2878	contr pay_amount pay_player map x y force_find force_add
		2879	insert remove name archname title slaying race decrease_ob_nr
		2880
1784	cf::object::player player	2881	cf::object::player
1785	cf::player peaceful	2882	player
1786	cf::map trigger	2883
		2884	cf::player
		2885	peaceful
		2886
		2887	cf::map
		2888	trigger
1787		2889
1788	=cut	2890	=cut
1789		2891
1790	for (	2892	for (
1791	["cf::object" => qw(contr pay_amount pay_player map)],	2893	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2894	insert remove inv name archname title slaying race
		2895	decrease_ob_nr)],
1792	["cf::object::player" => qw(player)],	2896	["cf::object::player" => qw(player)],
1793	["cf::player" => qw(peaceful)],	2897	["cf::player" => qw(peaceful)],
1794	["cf::map" => qw(trigger)],	2898	["cf::map" => qw(trigger)],
1795	) {	2899	) {
1796	no strict 'refs';	2900	no strict 'refs';
…		…
1867	=back	2971	=back
1868		2972
1869	=cut	2973	=cut
1870		2974
1871	#############################################################################	2975	#############################################################################
		2976	# the server's init and main functions
1872		2977
1873	=head2 EXTENSION DATABASE SUPPORT	2978	sub load_facedata($) {
		2979	my ($path) = @_;
1874		2980
1875	Crossfire maintains a very simple database for extension use. It can	2981	# HACK to clear player env face cache, we need some signal framework
1876	currently store anything that can be serialised using Storable, which	2982	# for this (global event?)
1877	excludes objects.	2983	%ext::player_env::MUSIC_FACE_CACHE = ();
1878		2984
1879	The parameter C<$family> should best start with the name of the extension	2985	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1880	using it, it should be unique.
1881		2986
1882	=over 4	2987	warn "loading facedata from $path\n";
1883		2988
1884	=item $hashref = cf::db_get $family	2989	my $facedata;
		2990	0 < aio_load $path, $facedata
		2991	or die "$path: $!";
1885		2992
1886	Return a hashref for use by the extension C<$family>, which can be	2993	$facedata = Coro::Storable::thaw $facedata;
1887	modified. After modifications, you have to call C<cf::db_dirty> or
1888	C<cf::db_sync>.
1889		2994
1890	=item $value = cf::db_get $family => $key	2995	$facedata->{version} == 2
		2996	or cf::cleanup "$path: version mismatch, cannot proceed.";
1891		2997
1892	Returns a single value from the database	2998	# patch in the exptable
1893		2999	$facedata->{resource}{"res/exp_table"} = {
1894	=item cf::db_put $family => $hashref	3000	type => FT_RSRC,
1895		3001	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1896	Stores the given family hashref into the database. Updates are delayed, if
1897	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1898
1899	=item cf::db_put $family => $key => $value
1900
1901	Stores the given C<$value> in the family hash. Updates are delayed, if you
1902	want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_dirty
1905
1906	Marks the database as dirty, to be updated at a later time.
1907
1908	=item cf::db_sync
1909
1910	Immediately write the database to disk I<if it is dirty>.
1911
1912	=cut
1913
1914	our $DB;
1915
1916	{
1917	my $path = cf::localdir . "/database.pst";
1918
1919	sub db_load() {
1920	$DB = stat $path ? Storable::retrieve $path : { };
1921	}
1922
1923	my $pid;
1924
1925	sub db_save() {
1926	waitpid $pid, 0 if $pid;
1927	if (0 == ($pid = fork)) {
1928	$DB->{_meta}{version} = 1;
1929	Storable::nstore $DB, "$path~";
1930	rename "$path~", $path;
1931	cf::_exit 0 if defined $pid;
1932	}
1933	}
1934
1935	my $dirty;
1936
1937	sub db_sync() {
1938	db_save if $dirty;
1939	undef $dirty;
1940	}
1941
1942	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1943	db_sync;
1944	});	3002	};
		3003	cf::cede_to_tick;
1945		3004
1946	sub db_dirty() {
1947	$dirty = 1;
1948	$idle->start;
1949	}	3005	{
		3006	my $faces = $facedata->{faceinfo};
1950		3007
1951	sub db_get($;$) {	3008	while (my ($face, $info) = each %$faces) {
1952	@_ >= 2	3009	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1953	? $DB->{$_[0]}{$_[1]}	3010	cf::face::set_visibility $idx, $info->{visibility};
1954	: ($DB->{$_[0]} ||= { })	3011	cf::face::set_magicmap $idx, $info->{magicmap};
1955	}	3012	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3013	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1956		3014
1957	sub db_put($$;$) {	3015	cf::cede_to_tick;
1958	if (@_ >= 3) {
1959	$DB->{$_[0]}{$_[1]} = $_[2];
1960	} else {
1961	$DB->{$_[0]} = $_[1];
1962	}
1963	db_dirty;
1964	}
1965
1966	cf::global->attach (
1967	prio => 10000,
1968	on_cleanup => sub {
1969	db_sync;
1970	},	3016	}
1971	);
1972	}
1973		3017
1974	#############################################################################	3018	while (my ($face, $info) = each %$faces) {
1975	# the server's main()	3019	next unless $info->{smooth};
		3020	my $idx = cf::face::find $face
		3021	or next;
		3022	if (my $smooth = cf::face::find $info->{smooth}) {
		3023	cf::face::set_smooth $idx, $smooth;
		3024	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3025	} else {
		3026	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3027	}
1976		3028
1977	sub cfg_load {	3029	cf::cede_to_tick;
		3030	}
		3031	}
		3032
		3033	{
		3034	my $anims = $facedata->{animinfo};
		3035
		3036	while (my ($anim, $info) = each %$anims) {
		3037	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3038	cf::cede_to_tick;
		3039	}
		3040
		3041	cf::anim::invalidate_all; # d'oh
		3042	}
		3043
		3044	{
		3045	# TODO: for gcfclient pleasure, we should give resources
		3046	# that gcfclient doesn't grok a >10000 face index.
		3047	my $res = $facedata->{resource};
		3048
		3049	my $soundconf = delete $res->{"res/sound.conf"};
		3050
		3051	while (my ($name, $info) = each %$res) {
		3052	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3053	my $data;
		3054
		3055	if ($info->{type} & 1) {
		3056	# prepend meta info
		3057
		3058	my $meta = $enc->encode ({
		3059	name => $name,
		3060	%{ $info->{meta} || {} },
		3061	});
		3062
		3063	$data = pack "(w/a*)*", $meta, $info->{data};
		3064	} else {
		3065	$data = $info->{data};
		3066	}
		3067
		3068	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3069	cf::face::set_type $idx, $info->{type};
		3070
		3071	cf::cede_to_tick;
		3072	}
		3073
		3074	if ($soundconf) {
		3075	$soundconf = $enc->decode (delete $soundconf->{data});
		3076
		3077	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3078	my $sound = $soundconf->{compat}[$_]
		3079	or next;
		3080
		3081	my $face = cf::face::find "sound/$sound->[1]";
		3082	cf::sound::set $sound->[0] => $face;
		3083	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3084	}
		3085
		3086	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3087	my $face = cf::face::find "sound/$v";
		3088	cf::sound::set $k => $face;
		3089	}
		3090	}
		3091	}
		3092
		3093	1
		3094	}
		3095
		3096	register_exticmd fx_want => sub {
		3097	my ($ns, $want) = @_;
		3098
		3099	while (my ($k, $v) = each %$want) {
		3100	$ns->fx_want ($k, $v);
		3101	}
		3102	};
		3103
		3104	sub reload_regions {
		3105	# HACK to clear player env face cache, we need some signal framework
		3106	# for this (global event?)
		3107	%ext::player_env::MUSIC_FACE_CACHE = ();
		3108
		3109	load_resource_file "$MAPDIR/regions"
		3110	or die "unable to load regions file\n";
		3111
		3112	for (cf::region::list) {
		3113	$_->{match} = qr/$_->{match}/
		3114	if exists $_->{match};
		3115	}
		3116	}
		3117
		3118	sub reload_facedata {
		3119	load_facedata "$DATADIR/facedata"
		3120	or die "unable to load facedata\n";
		3121	}
		3122
		3123	sub reload_archetypes {
		3124	load_resource_file "$DATADIR/archetypes"
		3125	or die "unable to load archetypes\n";
		3126	#d# NEED to laod twice to resolve forward references
		3127	# this really needs to be done in an extra post-pass
		3128	# (which needs to be synchronous, so solve it differently)
		3129	load_resource_file "$DATADIR/archetypes"
		3130	or die "unable to load archetypes\n";
		3131	}
		3132
		3133	sub reload_treasures {
		3134	load_resource_file "$DATADIR/treasures"
		3135	or die "unable to load treasurelists\n";
		3136	}
		3137
		3138	sub reload_resources {
		3139	warn "reloading resource files...\n";
		3140
		3141	reload_regions;
		3142	reload_facedata;
		3143	#reload_archetypes;#d#
		3144	reload_archetypes;
		3145	reload_treasures;
		3146
		3147	warn "finished reloading resource files\n";
		3148	}
		3149
		3150	sub init {
		3151	reload_resources;
		3152	}
		3153
		3154	sub reload_config {
1978	open my $fh, "<:utf8", cf::confdir . "/config"	3155	open my $fh, "<:utf8", "$CONFDIR/config"
1979	or return;	3156	or return;
1980		3157
1981	local $/;	3158	local $/;
1982	*CFG = YAML::Syck::Load <$fh>;	3159	*CFG = YAML::Syck::Load <$fh>;
		3160
		3161	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3162
		3163	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3164	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3165
		3166	if (exists $CFG{mlockall}) {
		3167	eval {
		3168	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3169	and die "WARNING: m(un)lockall failed: $!\n";
		3170	};
		3171	warn $@ if $@;
		3172	}
1983	}	3173	}
1984		3174
1985	sub main {	3175	sub main {
1986	# we must not ever block the main coroutine	3176	# we must not ever block the main coroutine
1987	local $Coro::idle = sub {	3177	local $Coro::idle = sub {
1988	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3178	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1989	(Coro::unblock_sub {	3179	(async {
1990	Event::one_event;	3180	Event::one_event;
1991	})->();	3181	})->prio (Coro::PRIO_MAX);
1992	};	3182	};
1993		3183
1994	cfg_load;	3184	reload_config;
1995	db_load;	3185	db_init;
1996	load_extensions;	3186	load_extensions;
		3187
		3188	$TICK_WATCHER->start;
1997	Event::loop;	3189	Event::loop;
1998	}	3190	}
1999		3191
2000	#############################################################################	3192	#############################################################################
2001	# initialisation	3193	# initialisation and cleanup
2002		3194
		3195	# install some emergency cleanup handlers
		3196	BEGIN {
		3197	for my $signal (qw(INT HUP TERM)) {
		3198	Event->signal (
		3199	reentrant => 0,
		3200	data => WF_AUTOCANCEL,
		3201	signal => $signal,
		3202	prio => 0,
		3203	cb => sub {
		3204	cf::cleanup "SIG$signal";
		3205	},
		3206	);
		3207	}
		3208	}
		3209
		3210	sub write_runtime {
		3211	my $runtime = "$LOCALDIR/runtime";
		3212
		3213	# first touch the runtime file to show we are still running:
		3214	# the fsync below can take a very very long time.
		3215
		3216	IO::AIO::aio_utime $runtime, undef, undef;
		3217
		3218	my $guard = cf::lock_acquire "write_runtime";
		3219
		3220	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3221	or return;
		3222
		3223	my $value = $cf::RUNTIME + 90 + 10;
		3224	# 10 is the runtime save interval, for a monotonic clock
		3225	# 60 allows for the watchdog to kill the server.
		3226
		3227	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3228	and return;
		3229
		3230	# always fsync - this file is important
		3231	aio_fsync $fh
		3232	and return;
		3233
		3234	# touch it again to show we are up-to-date
		3235	aio_utime $fh, undef, undef;
		3236
		3237	close $fh
		3238	or return;
		3239
		3240	aio_rename "$runtime~", $runtime
		3241	and return;
		3242
		3243	warn "runtime file written.\n";
		3244
		3245	1
		3246	}
		3247
		3248	sub emergency_save() {
		3249	my $freeze_guard = cf::freeze_mainloop;
		3250
		3251	warn "enter emergency perl save\n";
		3252
		3253	cf::sync_job {
		3254	# use a peculiar iteration method to avoid tripping on perl
		3255	# refcount bugs in for. also avoids problems with players
		3256	# and maps saved/destroyed asynchronously.
		3257	warn "begin emergency player save\n";
		3258	for my $login (keys %cf::PLAYER) {
		3259	my $pl = $cf::PLAYER{$login} or next;
		3260	$pl->valid or next;
		3261	$pl->save;
		3262	}
		3263	warn "end emergency player save\n";
		3264
		3265	warn "begin emergency map save\n";
		3266	for my $path (keys %cf::MAP) {
		3267	my $map = $cf::MAP{$path} or next;
		3268	$map->valid or next;
		3269	$map->save;
		3270	}
		3271	warn "end emergency map save\n";
		3272
		3273	warn "begin emergency database checkpoint\n";
		3274	BDB::db_env_txn_checkpoint $DB_ENV;
		3275	warn "end emergency database checkpoint\n";
		3276	};
		3277
		3278	warn "leave emergency perl save\n";
		3279	}
		3280
		3281	sub post_cleanup {
		3282	my ($make_core) = @_;
		3283
		3284	warn Carp::longmess "post_cleanup backtrace"
		3285	if $make_core;
		3286	}
		3287
2003	sub reload() {	3288	sub do_reload_perl() {
2004	# can/must only be called in main	3289	# can/must only be called in main
2005	if ($Coro::current != $Coro::main) {	3290	if ($Coro::current != $Coro::main) {
2006	warn "can only reload from main coroutine\n";	3291	warn "can only reload from main coroutine";
2007	return;	3292	return;
2008	}	3293	}
2009		3294
2010	warn "reloading...";	3295	warn "reloading...";
2011		3296
2012	local $FREEZE = 1;	3297	warn "entering sync_job";
		3298
		3299	cf::sync_job {
		3300	cf::write_runtime; # external watchdog should not bark
2013	cf::emergency_save;	3301	cf::emergency_save;
		3302	cf::write_runtime; # external watchdog should not bark
2014		3303
2015	eval {	3304	warn "syncing database to disk";
		3305	BDB::db_env_txn_checkpoint $DB_ENV;
		3306
2016	# if anything goes wrong in here, we should simply crash as we already saved	3307	# if anything goes wrong in here, we should simply crash as we already saved
2017		3308
2018	# cancel all watchers	3309	warn "cancelling all WF_AUTOCANCEL watchers";
2019	for (Event::all_watchers) {	3310	for (Event::all_watchers) {
2020	$_->cancel if $_->data & WF_AUTOCANCEL;	3311	$_->cancel if $_->data & WF_AUTOCANCEL;
2021	}	3312	}
2022		3313
		3314	warn "flushing outstanding aio requests";
		3315	for (;;) {
		3316	BDB::flush;
		3317	IO::AIO::flush;
		3318	Coro::cede;
		3319	last unless IO::AIO::nreqs || BDB::nreqs;
		3320	warn "iterate...";
		3321	}
		3322
		3323	++$RELOAD;
		3324
2023	# cancel all extension coros	3325	warn "cancelling all extension coros";
2024	$_->cancel for values %EXT_CORO;	3326	$_->cancel for values %EXT_CORO;
2025	%EXT_CORO = ();	3327	%EXT_CORO = ();
2026		3328
2027	# unload all extensions	3329	warn "removing commands";
2028	for (@exts) {	3330	%COMMAND = ();
		3331
		3332	warn "removing ext/exti commands";
		3333	%EXTCMD = ();
		3334	%EXTICMD = ();
		3335
		3336	warn "unloading/nuking all extensions";
		3337	for my $pkg (@EXTS) {
2029	warn "unloading <$_>";	3338	warn "... unloading $pkg";
2030	unload_extension $_;	3339
		3340	if (my $cb = $pkg->can ("unload")) {
		3341	eval {
		3342	$cb->($pkg);
		3343	1
		3344	} or warn "$pkg unloaded, but with errors: $@";
2031	}	3345	}
2032		3346
		3347	warn "... nuking $pkg";
		3348	Symbol::delete_package $pkg;
		3349	}
		3350
2033	# unload all modules loaded from $LIBDIR	3351	warn "unloading all perl modules loaded from $LIBDIR";
2034	while (my ($k, $v) = each %INC) {	3352	while (my ($k, $v) = each %INC) {
2035	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3353	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2036		3354
2037	warn "removing <$k>";	3355	warn "... unloading $k";
2038	delete $INC{$k};	3356	delete $INC{$k};
2039		3357
2040	$k =~ s/\.pm$//;	3358	$k =~ s/\.pm$//;
2041	$k =~ s/\//::/g;	3359	$k =~ s/\//::/g;
2042		3360
…		…
2045	}	3363	}
2046		3364
2047	Symbol::delete_package $k;	3365	Symbol::delete_package $k;
2048	}	3366	}
2049		3367
2050	# sync database to disk
2051	cf::db_sync;
2052	IO::AIO::flush;
2053
2054	# get rid of safe::, as good as possible	3368	warn "getting rid of safe::, as good as possible";
2055	Symbol::delete_package "safe::$_"	3369	Symbol::delete_package "safe::$_"
2056	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3370	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2057		3371
2058	# remove register_script_function callbacks
2059	# TODO
2060
2061	# unload cf.pm "a bit"	3372	warn "unloading cf.pm \"a bit\"";
2062	delete $INC{"cf.pm"};	3373	delete $INC{"cf.pm"};
		3374	delete $INC{"cf/pod.pm"};
2063		3375
2064	# don't, removes xs symbols, too,	3376	# don't, removes xs symbols, too,
2065	# and global variables created in xs	3377	# and global variables created in xs
2066	#Symbol::delete_package __PACKAGE__;	3378	#Symbol::delete_package __PACKAGE__;
2067		3379
2068	# reload cf.pm	3380	warn "unload completed, starting to reload now";
		3381
2069	warn "reloading cf.pm";	3382	warn "reloading cf.pm";
2070	require cf;	3383	require cf;
2071	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3384	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2072		3385
2073	# load config and database again	3386	warn "loading config and database again";
2074	cf::cfg_load;	3387	cf::reload_config;
2075	cf::db_load;
2076		3388
2077	# load extensions
2078	warn "load extensions";	3389	warn "loading extensions";
2079	cf::load_extensions;	3390	cf::load_extensions;
2080		3391
2081	# reattach attachments to objects	3392	warn "reattaching attachments to objects/players";
2082	warn "reattach";	3393	_global_reattach; # objects, sockets
2083	_global_reattach;	3394	warn "reattaching attachments to maps";
2084	};	3395	reattach $_ for values %MAP;
		3396	warn "reattaching attachments to players";
		3397	reattach $_ for values %PLAYER;
2085		3398
2086	if ($@) {	3399	warn "leaving sync_job";
		3400
		3401	1
		3402	} or do {
2087	warn $@;	3403	warn $@;
2088	warn "error while reloading, exiting.";	3404	warn "error while reloading, exiting.";
2089	exit 1;	3405	exit 1;
2090	}	3406	};
2091		3407
2092	warn "reloaded successfully";	3408	warn "reloaded";
2093	};	3409	};
2094		3410
2095	#############################################################################	3411	our $RELOAD_WATCHER; # used only during reload
2096		3412
2097	unless ($LINK_MAP) {	3413	sub reload_perl() {
2098	$LINK_MAP = cf::map::new;	3414	# doing reload synchronously and two reloads happen back-to-back,
		3415	# coro crashes during coro_state_free->destroy here.
2099		3416
2100	$LINK_MAP->width (41);	3417	$RELOAD_WATCHER ||= Event->timer (
2101	$LINK_MAP->height (41);	3418	reentrant => 0,
2102	$LINK_MAP->alloc;
2103	$LINK_MAP->path ("{link}");
2104	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2105	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2106
2107	# dirty hack because... archetypes are not yet loaded
2108	Event->timer (
2109	after => 2,	3419	after => 0,
		3420	data => WF_AUTOCANCEL,
2110	cb => sub {	3421	cb => sub {
2111	$_[0]->w->cancel;	3422	do_reload_perl;
2112		3423	undef $RELOAD_WATCHER;
2113	# provide some exits "home"
2114	my $exit = cf::object::new "exit";
2115
2116	$exit->slaying ($EMERGENCY_POSITION->[0]);
2117	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2118	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2119
2120	$LINK_MAP->insert ($exit->clone, 19, 19);
2121	$LINK_MAP->insert ($exit->clone, 19, 20);
2122	$LINK_MAP->insert ($exit->clone, 19, 21);
2123	$LINK_MAP->insert ($exit->clone, 20, 19);
2124	$LINK_MAP->insert ($exit->clone, 20, 21);
2125	$LINK_MAP->insert ($exit->clone, 21, 19);
2126	$LINK_MAP->insert ($exit->clone, 21, 20);
2127	$LINK_MAP->insert ($exit->clone, 21, 21);
2128
2129	$exit->destroy;
2130	});	3424	},
2131		3425	);
2132	$LINK_MAP->{deny_save} = 1;
2133	$LINK_MAP->{deny_reset} = 1;
2134
2135	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2136	}	3426	}
2137
2138	register "<global>", __PACKAGE__;
2139		3427
2140	register_command "reload" => sub {	3428	register_command "reload" => sub {
2141	my ($who, $arg) = @_;	3429	my ($who, $arg) = @_;
2142		3430
2143	if ($who->flag (FLAG_WIZ)) {	3431	if ($who->flag (FLAG_WIZ)) {
2144	$who->message ("start of reload.");
2145	reload;
2146	$who->message ("end of reload.");	3432	$who->message ("reloading server.");
		3433	async { reload_perl };
2147	}	3434	}
2148	};	3435	};
2149		3436
2150	unshift @INC, $LIBDIR;	3437	unshift @INC, $LIBDIR;
		3438
		3439	my $bug_warning = 0;
		3440
		3441	our @WAIT_FOR_TICK;
		3442	our @WAIT_FOR_TICK_BEGIN;
		3443
		3444	sub wait_for_tick {
		3445	return unless $TICK_WATCHER->is_active;
		3446	return if $Coro::current == $Coro::main;
		3447
		3448	my $signal = new Coro::Signal;
		3449	push @WAIT_FOR_TICK, $signal;
		3450	$signal->wait;
		3451	}
		3452
		3453	sub wait_for_tick_begin {
		3454	return unless $TICK_WATCHER->is_active;
		3455	return if $Coro::current == $Coro::main;
		3456
		3457	my $signal = new Coro::Signal;
		3458	push @WAIT_FOR_TICK_BEGIN, $signal;
		3459	$signal->wait;
		3460	}
		3461
		3462	our $stat_fh;
		3463	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
2151		3464
2152	$TICK_WATCHER = Event->timer (	3465	$TICK_WATCHER = Event->timer (
2153	reentrant => 0,	3466	reentrant => 0,
		3467	parked => 1,
2154	prio => 0,	3468	prio => 0,
2155	at => $NEXT_TICK || $TICK,	3469	at => $NEXT_TICK || $TICK,
2156	data => WF_AUTOCANCEL,	3470	data => WF_AUTOCANCEL,
2157	cb => sub {	3471	cb => sub {
2158	unless ($FREEZE) {	3472	if ($Coro::current != $Coro::main) {
		3473	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3474	unless ++$bug_warning > 10;
		3475	return;
		3476	}
		3477
		3478	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3479
		3480	$NOW = $tick_start = Event::time;
		3481
2159	cf::server_tick; # one server iteration	3482	cf::server_tick; # one server iteration
		3483
2160	$RUNTIME += $TICK;	3484	$RUNTIME += $TICK;
2161	}
2162
2163	$NEXT_TICK += $TICK;	3485	$NEXT_TICK += $TICK;
2164		3486
		3487	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3488	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3489	Coro::async_pool {
		3490	write_runtime
		3491	or warn "ERROR: unable to write runtime file: $!";
		3492	};
		3493	}
		3494
		3495	# my $AFTER = Event::time;
		3496	# warn $AFTER - $NOW;#d#
		3497
		3498	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3499	$sig->send;
		3500	}
		3501	while (my $sig = shift @WAIT_FOR_TICK) {
		3502	$sig->send;
		3503	}
		3504
		3505	$NOW = Event::time;
		3506
2165	# if we are delayed by four ticks or more, skip them all	3507	# if we are delayed by four ticks or more, skip them all
2166	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3508	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2167		3509
2168	$TICK_WATCHER->at ($NEXT_TICK);	3510	$TICK_WATCHER->at ($NEXT_TICK);
2169	$TICK_WATCHER->start;	3511	$TICK_WATCHER->start;
		3512
		3513	$LOAD = ($NOW - $tick_start) / $TICK;
		3514	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3515
		3516	_post_tick;
		3517
		3518	# gather some statistics#d#
		3519	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3520	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2170	},	3521	},
2171	);	3522	);
2172		3523
		3524	{
		3525	BDB::min_parallel 8;
2173	IO::AIO::max_poll_time $TICK * 0.2;	3526	BDB::max_poll_time $TICK * 0.1;
2174		3527	$BDB_POLL_WATCHER = Event->io (
2175	Event->io (	3528	reentrant => 0,
2176	fd => IO::AIO::poll_fileno,	3529	fd => BDB::poll_fileno,
2177	poll => 'r',	3530	poll => 'r',
2178	prio => 5,	3531	prio => 0,
2179	data => WF_AUTOCANCEL,
2180	cb => \&IO::AIO::poll_cb,
2181	);
2182
2183	Event->timer (
2184	data => WF_AUTOCANCEL,	3532	data => WF_AUTOCANCEL,
		3533	cb => \&BDB::poll_cb,
		3534	);
		3535
		3536	BDB::set_sync_prepare {
		3537	my $status;
		3538	my $current = $Coro::current;
		3539	(
		3540	sub {
		3541	$status = $!;
		3542	$current->ready; undef $current;
		3543	},
		3544	sub {
		3545	Coro::schedule while defined $current;
		3546	$! = $status;
		3547	},
		3548	)
		3549	};
		3550
		3551	unless ($DB_ENV) {
		3552	$DB_ENV = BDB::db_env_create;
		3553
		3554	cf::sync_job {
		3555	eval {
		3556	BDB::db_env_open
		3557	$DB_ENV,
		3558	$BDBDIR,
		3559	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3560	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3561	0666;
		3562
		3563	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3564
		3565	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3566	| BDB::LOG_AUTOREMOVE, 1);
		3567	$DB_ENV->set_lk_detect;
		3568	};
		3569
		3570	cf::cleanup "db_env_open(db): $@" if $@;
		3571	};
		3572	}
		3573
		3574	$BDB_CHECKPOINT_WATCHER = Event->timer (
2185	after => 0,	3575	after => 11,
2186	interval => 10,	3576	interval => 60,
		3577	hard => 1,
		3578	prio => 0,
		3579	data => WF_AUTOCANCEL,
2187	cb => sub {	3580	cb => sub {
2188	(Coro::unblock_sub {	3581	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2189	write_runtime	3582	},
2190	or warn "ERROR: unable to write runtime file: $!";	3583	);
		3584	$BDB_TRICKLE_WATCHER = Event->timer (
		3585	after => 5,
		3586	interval => 10,
		3587	hard => 1,
		3588	prio => 0,
		3589	data => WF_AUTOCANCEL,
		3590	cb => sub {
		3591	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3592	},
		3593	);
		3594	}
		3595
		3596	{
		3597	IO::AIO::min_parallel 8;
		3598
		3599	undef $Coro::AIO::WATCHER;
		3600	IO::AIO::max_poll_time $TICK * 0.1;
		3601	$AIO_POLL_WATCHER = Event->io (
		3602	reentrant => 0,
		3603	data => WF_AUTOCANCEL,
		3604	fd => IO::AIO::poll_fileno,
		3605	poll => 'r',
		3606	prio => 6,
		3607	cb => \&IO::AIO::poll_cb,
		3608	);
		3609	}
		3610
		3611	my $_log_backtrace;
		3612
		3613	sub _log_backtrace {
		3614	my ($msg, @addr) = @_;
		3615
		3616	$msg =~ s/\n//;
		3617
		3618	# limit the # of concurrent backtraces
		3619	if ($_log_backtrace < 2) {
		3620	++$_log_backtrace;
		3621	async {
		3622	my @bt = fork_call {
		3623	@addr = map { sprintf "%x", $_ } @addr;
		3624	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3625	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3626	or die "addr2line: $!";
		3627
		3628	my @funcs;
		3629	my @res = <$fh>;
		3630	chomp for @res;
		3631	while (@res) {
		3632	my ($func, $line) = splice @res, 0, 2, ();
		3633	push @funcs, "[$func] $line";
		3634	}
		3635
		3636	@funcs
		3637	};
		3638
		3639	LOG llevInfo, "[ABT] $msg\n";
		3640	LOG llevInfo, "[ABT] $_\n" for @bt;
		3641	--$_log_backtrace;
2191	})->();	3642	};
		3643	} else {
		3644	LOG llevInfo, "[ABT] $msg\n";
		3645	LOG llevInfo, "[ABT] [suppressed]\n";
2192	},	3646	}
2193	);	3647	}
		3648
		3649	# load additional modules
		3650	use cf::pod;
		3651
		3652	END { cf::emergency_save }
2194		3653
2195	1	3654	1
2196		3655

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