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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 2007 UTC vs.
Revision 1.352 by root, Sun Sep 2 04:57:14 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 $DB_ENV;
46		86
47	our %CFG;	87	our %CFG;
48		88
49	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	90	our $RUNTIME;
51		91
		92	our %PLAYER; # all users
52	our %MAP; # all maps	93	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	94	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	95
55	our $RANDOM_MAPS = cf::localdir . "/random";	96	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
57		102
58	binmode STDOUT;	103	binmode STDOUT;
59	binmode STDERR;	104	binmode STDERR;
60		105
61	# read virtual server time, if available	106	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
66	}	111	}
67		112
68	mkdir cf::localdir;	113	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		115
74	# a special map that is always available	116	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		117
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	118	sub cf::map::normalise;
78		119
79	#############################################################################	120	#############################################################################
80		121
81	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
82		123
…		…
89	=item $cf::RUNTIME	130	=item $cf::RUNTIME
90		131
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	133	every server tick.
93		134
94	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		138
96	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
98		143
99	=item $cf::NOW	144	=item $cf::NOW
100		145
101	The time of the last (current) server tick.	146	The time of the last (current) server tick.
102		147
103	=item $cf::TICK	148	=item $cf::TICK
104		149
105	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
106		161
107	=item %cf::CFG	162	=item %cf::CFG
108		163
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
111		178
112	=back	179	=back
113		180
114	=cut	181	=cut
115		182
116	BEGIN {	183	BEGIN {
117	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	185	my $msg = join "", @_;
119	utf8::encode $msg;
120		186
121	$msg .= "\n"	187	$msg .= "\n"
122	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
123		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
125	};	194	};
126	}	195	}
127		196
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		204
135	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	206	# within the Safe compartment.
137	for my $pkg (qw(	207	for my $pkg (qw(
138	cf::global cf::attachable	208	cf::global cf::attachable
…		…
147		217
148	$Event::DIED = sub {	218	$Event::DIED = sub {
149	warn "error in event callback: @_";	219	warn "error in event callback: @_";
150	};	220	};
151		221
152	my %ext_pkg;	222	#############################################################################
153	my @exts;
154	my @hook;
155		223
156	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
157		225
158	=over 4	226	=over 4
159		227
160	=cut	228	=item dumpval $ref
161		229
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
163		250
164	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
165		252
166	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
167		254
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
176		256
177	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
178		258
179	=cut	259	=cut
180		260
181	sub to_json($) {	261	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		262
186	=item my $guard = cf::guard { BLOCK }	263	sub to_json ($) { $json_coder->encode ($_[0]) }
187		264	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		265
208	=item cf::lock_wait $string	266	=item cf::lock_wait $string
209		267
210	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
211		269
212	=item my $lock = cf::lock_acquire $string	270	=item my $lock = cf::lock_acquire $string
213		271
214	Wait until the given lock is available and then acquires it and returns	272	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,	273	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	274	for example when the coroutine gets canceled), the lock is automatically
217	returned.	275	returned.
218		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
219	Lock names should begin with a unique identifier (for example, find_map	280	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	281	uses map_find and cf::map::load uses map_load).
		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
221		286
222	=cut	287	=cut
223		288
224	our %LOCK;	289	our %LOCK;
225		290
…		…
239	# wait, to be sure we are not locked	304	# wait, to be sure we are not locked
240	lock_wait $key;	305	lock_wait $key;
241		306
242	$LOCK{$key} = [];	307	$LOCK{$key} = [];
243		308
244	cf::guard {	309	Coro::guard {
245	# wake up all waiters, to be on the safe side	310	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	311	$_->ready for @{ delete $LOCK{$key} };
247	}	312	}
248	}	313	}
249		314
		315	sub lock_active($) {
		316	my ($key) = @_;
		317
		318	! ! $LOCK{$key}
		319	}
		320
		321	sub freeze_mainloop {
		322	return unless $TICK_WATCHER->is_active;
		323
		324	my $guard = Coro::guard {
		325	$TICK_WATCHER->start;
		326	};
		327	$TICK_WATCHER->stop;
		328	$guard
		329	}
		330
		331	=item cf::get_slot $time[, $priority[, $name]]
		332
		333	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		334	This call blocks and returns only when you have at least C<$time> seconds
		335	of cpu time till the next tick. The slot is only valid till the next cede.
		336
		337	The optional C<$name> can be used to identify the job to run. It might be
		338	used for statistical purposes and should identify the same time-class.
		339
		340	Useful for short background jobs.
		341
		342	=cut
		343
		344	our @SLOT_QUEUE;
		345	our $SLOT_QUEUE;
		346
		347	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		348	$SLOT_QUEUE = Coro::async {
		349	my $signal = new Coro::Signal;
		350
		351	while () {
		352	next_job:
		353	my $avail = cf::till_tick;
		354	if ($avail > 0.01) {
		355	for (0 .. $#SLOT_QUEUE) {
		356	if ($SLOT_QUEUE[$_][0] < $avail) {
		357	my $job = splice @SLOT_QUEUE, $_, 1, ();
		358	$job->[2]->send;
		359	Coro::cede;
		360	goto next_job;
		361	}
		362	}
		363	}
		364
		365	if (@SLOT_QUEUE) {
		366	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		367	push @cf::WAIT_FOR_TICK, $signal;
		368	$signal->wait;
		369	} else {
		370	Coro::schedule;
		371	}
		372	}
		373	};
		374
		375	sub get_slot($;$$) {
		376	my ($time, $pri, $name) = @_;
		377
		378	$time = $TICK * .6 if $time > $TICK * .6;
		379	my $sig = new Coro::Signal;
		380
		381	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		382	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		383	$SLOT_QUEUE->ready;
		384	$sig->wait;
		385	}
		386
		387	=item cf::async { BLOCK }
		388
		389	Currently the same as Coro::async_pool, meaning you cannot use
		390	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		391	thing you are allowed to do is call C<prio> on it.
		392
		393	=cut
		394
		395	BEGIN { *async = \&Coro::async_pool }
		396
250	=item cf::sync_job { BLOCK }	397	=item cf::sync_job { BLOCK }
251		398
252	The design of crossfire+ requires that the main coro ($Coro::main) is	399	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	400	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.	401	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		402	acceptable.
255		403
256	If it must be done, put the blocking parts into C<sync_job>. This will run	404	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	405	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	406	server will be frozen during this time, so the block should either finish
259	fast or be very important.	407	fast or be very important.
…		…
262		410
263	sub sync_job(&) {	411	sub sync_job(&) {
264	my ($job) = @_;	412	my ($job) = @_;
265		413
266	if ($Coro::current == $Coro::main) {	414	if ($Coro::current == $Coro::main) {
		415	my $time = Event::time;
		416
267	# this is the main coro, too bad, we have to block	417	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	418	# till the operation succeeds, freezing the server :/
269		419
270	# TODO: use suspend/resume instead	420	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	421	# (but this is cancel-safe)
272	local $FREEZE = 1;	422	my $freeze_guard = freeze_mainloop;
273		423
274	my $busy = 1;	424	my $busy = 1;
275	my @res;	425	my @res;
276		426
277	(Coro::async {	427	(async {
278	@res = eval { $job->() };	428	@res = eval { $job->() };
279	warn $@ if $@;	429	warn $@ if $@;
280	undef $busy;	430	undef $busy;
281	})->prio (Coro::PRIO_MAX);	431	})->prio (Coro::PRIO_MAX);
282		432
283	while ($busy) {	433	while ($busy) {
284	Coro::cede_notself;	434	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	435	}
		436
		437	$time = Event::time - $time;
		438
		439	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		440	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		441
		442	$tick_start += $time; # do not account sync jobs to server load
287		443
288	wantarray ? @res : $res[0]	444	wantarray ? @res : $res[0]
289	} else {	445	} else {
290	# we are in another coroutine, how wonderful, everything just works	446	# we are in another coroutine, how wonderful, everything just works
291		447
292	$job->()	448	$job->()
293	}	449	}
294	}	450	}
295		451
296	=item $coro = cf::coro { BLOCK }	452	=item $coro = cf::async_ext { BLOCK }
297		453
298	Creates and returns a new coro. This coro is automcatially being canceled	454	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	455	extension calling this is being unloaded.
300		456
301	=cut	457	=cut
302		458
303	sub coro(&) {	459	sub async_ext(&) {
304	my $cb = shift;	460	my $cb = shift;
305		461
306	my $coro; $coro = async {	462	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		463
313	$coro->on_destroy (sub {	464	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	465	delete $EXT_CORO{$coro+0};
315	});	466	});
316	$EXT_CORO{$coro+0} = $coro;	467	$EXT_CORO{$coro+0} = $coro;
317		468
318	$coro	469	$coro
319	}	470	}
320		471
321	sub write_runtime {	472	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		473
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	474	Executes the given code block with the given arguments in a seperate
325	or return;	475	process, returning the results. Everything must be serialisable with
		476	Coro::Storable. May, of course, block. Note that the executed sub may
		477	never block itself or use any form of Event handling.
326		478
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	479	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		480
331	aio_fsync $fh	481	sub fork_call(&@) {
332	and return;	482	my ($cb, @args) = @_;
333		483
334	close $fh	484	# we seemingly have to make a local copy of the whole thing,
335	or return;	485	# otherwise perl prematurely frees the stuff :/
		486	# TODO: investigate and fix (liekly this will be rather laborious)
336		487
337	aio_rename "$runtime~", $runtime	488	my @res = Coro::Util::fork_eval {
338	and return;	489	reset_signals;
		490	&$cb
		491	}, @args;
339		492
		493	wantarray ? @res : $res[-1]
		494	}
		495
		496	=item $value = cf::db_get $family => $key
		497
		498	Returns a single value from the environment database.
		499
		500	=item cf::db_put $family => $key => $value
		501
		502	Stores the given C<$value> in the family. It can currently store binary
		503	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		504
		505	=cut
		506
		507	our $DB;
		508
		509	sub db_init {
		510	unless ($DB) {
		511	$DB = BDB::db_create $DB_ENV;
		512
		513	cf::sync_job {
		514	eval {
		515	$DB->set_flags (BDB::CHKSUM);
		516
		517	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		518	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		519	cf::cleanup "db_open(db): $!" if $!;
		520	};
		521	cf::cleanup "db_open(db): $@" if $@;
		522	};
340	1	523	}
		524	}
		525
		526	sub db_get($$) {
		527	my $key = "$_[0]/$_[1]";
		528
		529	cf::sync_job {
		530	BDB::db_get $DB, undef, $key, my $data;
		531
		532	$! ? ()
		533	: $data
		534	}
		535	}
		536
		537	sub db_put($$$) {
		538	BDB::dbreq_pri 4;
		539	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		540	}
		541
		542	=item cf::cache $id => [$paths...], $processversion => $process
		543
		544	Generic caching function that returns the value of the resource $id,
		545	caching and regenerating as required.
		546
		547	This function can block.
		548
		549	=cut
		550
		551	sub cache {
		552	my ($id, $src, $processversion, $process) = @_;
		553
		554	my $meta =
		555	join "\x00",
		556	$processversion,
		557	map {
		558	aio_stat $_
		559	and Carp::croak "$_: $!";
		560
		561	($_, (stat _)[7,9])
		562	} @$src;
		563
		564	my $dbmeta = db_get cache => "$id/meta";
		565	if ($dbmeta ne $meta) {
		566	# changed, we may need to process
		567
		568	my @data;
		569	my $md5;
		570
		571	for (0 .. $#$src) {
		572	0 <= aio_load $src->[$_], $data[$_]
		573	or Carp::croak "$src->[$_]: $!";
		574	}
		575
		576	# if processing is expensive, check
		577	# checksum first
		578	if (1) {
		579	$md5 =
		580	join "\x00",
		581	$processversion,
		582	map {
		583	cf::cede_to_tick;
		584	($src->[$_], Digest::MD5::md5_hex $data[$_])
		585	} 0.. $#$src;
		586
		587
		588	my $dbmd5 = db_get cache => "$id/md5";
		589	if ($dbmd5 eq $md5) {
		590	db_put cache => "$id/meta", $meta;
		591
		592	return db_get cache => "$id/data";
		593	}
		594	}
		595
		596	my $t1 = Time::HiRes::time;
		597	my $data = $process->(\@data);
		598	my $t2 = Time::HiRes::time;
		599
		600	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		601
		602	db_put cache => "$id/data", $data;
		603	db_put cache => "$id/md5" , $md5;
		604	db_put cache => "$id/meta", $meta;
		605
		606	return $data;
		607	}
		608
		609	db_get cache => "$id/data"
		610	}
		611
		612	=item cf::datalog type => key => value, ...
		613
		614	Log a datalog packet of the given type with the given key-value pairs.
		615
		616	=cut
		617
		618	sub datalog($@) {
		619	my ($type, %kv) = @_;
		620	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	621	}
342		622
343	=back	623	=back
344		624
345	=cut	625	=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		626
467	#############################################################################	627	#############################################################################
468		628
469	=head2 ATTACHABLE OBJECTS	629	=head2 ATTACHABLE OBJECTS
470		630
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	632	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	633	to it. All such attachable objects support the following methods.
474		634
475	In the following description, CLASS can be any of C<global>, C<object>	635	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	636	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	637	Crossfire TRT).
478		638
479	=over 4	639	=over 4
480		640
481	=item $attachable->attach ($attachment, key => $value...)	641	=item $attachable->attach ($attachment, key => $value...)
482		642
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	756	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	757	our @CB_MAP = ();
598		758
599	my %attachment;	759	my %attachment;
600		760
		761	sub cf::attachable::thawer_merge {
		762	# simply override everything except _meta
		763	local $_[0]{_meta};
		764	%{$_[0]} = %{$_[1]};
		765	}
		766
601	sub _attach_cb($$$$) {	767	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	768	my ($registry, $event, $prio, $cb) = @_;
603		769
604	use sort 'stable';	770	use sort 'stable';
605		771
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	805	$registry = $CB_TYPE[$object_type] ||= [];
640		806
641	} elsif ($type eq "subtype") {	807	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	808	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	809	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	810	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		811
646	} elsif ($type eq "package") {	812	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	813	my $pkg = shift @arg;
648		814
649	while (my ($name, $id) = each %cb_id) {	815	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	844	_attach $registry, $klass, @attach;
679	}	845	}
680		846
681	$obj->{$name} = \%arg;	847	$obj->{$name} = \%arg;
682	} else {	848	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	849	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	850	}
685		851
686	$obj->{_attachment}{$name} = undef;	852	$obj->{_attachment}{$name} = undef;
687	}	853	}
688		854
…		…
690	if (ref $_[0]) {	856	if (ref $_[0]) {
691	_object_attach @_;	857	_object_attach @_;
692	} else {	858	} else {
693	_attach shift->_attach_registry, @_;	859	_attach shift->_attach_registry, @_;
694	}	860	}
		861	_recalc_want;
695	};	862	};
696		863
697	# all those should be optimised	864	# all those should be optimised
698	sub cf::attachable::detach {	865	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	866	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	869	delete $obj->{_attachment}{$name};
703	reattach ($obj);	870	reattach ($obj);
704	} else {	871	} else {
705	Carp::croak "cannot, currently, detach class attachments";	872	Carp::croak "cannot, currently, detach class attachments";
706	}	873	}
		874	_recalc_want;
707	};	875	};
708		876
709	sub cf::attachable::attached {	877	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	878	my ($obj, $name) = @_;
711		879
…		…
726	";	894	";
727	die if $@;	895	die if $@;
728	}	896	}
729		897
730	our $override;	898	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	899	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		900
733	sub override {	901	sub override {
734	$override = 1;	902	$override = 1;
735	@invoke_results = ();	903	@INVOKE_RESULTS = (@_);
736	}	904	}
737		905
738	sub do_invoke {	906	sub do_invoke {
739	my $event = shift;	907	my $event = shift;
740	my $callbacks = shift;	908	my $callbacks = shift;
741		909
742	@invoke_results = ();	910	@INVOKE_RESULTS = ();
743		911
744	local $override;	912	local $override;
745		913
746	for (@$callbacks) {	914	for (@$callbacks) {
747	eval { &{$_->[1]} };	915	eval { &{$_->[1]} };
…		…
764		932
765	Generate an object-specific event with the given arguments.	933	Generate an object-specific event with the given arguments.
766		934
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	935	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	936	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	937	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		938
771	=back	939	=back
772		940
773	=cut	941	=cut
774		942
775	#############################################################################	943	#############################################################################
776	# object support	944	# object support
		945	#
		946
		947	sub _can_merge {
		948	my ($ob1, $ob2) = @_;
		949
		950	local $Storable::canonical = 1;
		951	my $fob1 = Storable::freeze $ob1;
		952	my $fob2 = Storable::freeze $ob2;
		953
		954	$fob1 eq $fob2
		955	}
777		956
778	sub reattach {	957	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	958	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	959	my ($obj) = @_;
		960
		961	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		962
782	my $registry = $obj->registry;	963	my $registry = $obj->registry;
783		964
784	@$registry = ();	965	@$registry = ();
785		966
…		…
832	$filename, length $$rdata, scalar @$objs;	1013	$filename, length $$rdata, scalar @$objs;
833		1014
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1015	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1016	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1017	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1018	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1019	close $fh;
839		1020
840	if (@$objs) {	1021	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1022	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1023	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1024	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1025	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1026	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1027	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1028	aio_rename "$filename.pst~", "$filename.pst";
848	}	1029	}
849	} else {	1030	} else {
850	aio_unlink "$filename.pst";	1031	aio_unlink "$filename.pst";
…		…
882	or return;	1063	or return;
883	$av = eval { (Storable::thaw $av)->{objs} };	1064	$av = eval { (Storable::thaw $av)->{objs} };
884	}	1065	}
885		1066
886	warn sprintf "loading %s (%d)\n",	1067	warn sprintf "loading %s (%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1068	$filename, length $data, scalar @{$av || []};
888	return ($data, $av);	1069	return ($data, $av);
889	}	1070	}
		1071
		1072	=head2 COMMAND CALLBACKS
		1073
		1074	=over 4
		1075
		1076	=cut
890		1077
891	#############################################################################	1078	#############################################################################
892	# command handling &c	1079	# command handling &c
893		1080
894	=item cf::register_command $name => \&callback($ob,$args);	1081	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1094	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1095	}
909		1096
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1097	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1098
912	Register a callbackf ro execution when the client sends an extcmd packet.	1099	Register a callback for execution when the client sends an (synchronous)
		1100	extcmd packet. Ext commands will be processed in the order they are
		1101	received by the server, like other user commands. The first argument is
		1102	the logged-in player. Ext commands can only be processed after a player
		1103	has logged in successfully.
913		1104
914	If the callback returns something, it is sent back as if reply was being	1105	If the callback returns something, it is sent back as if reply was being
915	called.	1106	called.
916		1107
		1108	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1109
		1110	Register a callback for execution when the client sends an (asynchronous)
		1111	exticmd packet. Exti commands are processed by the server as soon as they
		1112	are received, i.e. out of order w.r.t. other commands. The first argument
		1113	is a client socket. Exti commands can be received anytime, even before
		1114	log-in.
		1115
		1116	If the callback returns something, it is sent back as if reply was being
		1117	called.
		1118
917	=cut	1119	=cut
918		1120
919	sub register_extcmd {	1121	sub register_extcmd {
920	my ($name, $cb) = @_;	1122	my ($name, $cb) = @_;
921		1123
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1124	$EXTCMD{$name} = $cb;
		1125	}
		1126
		1127	sub register_exticmd {
		1128	my ($name, $cb) = @_;
		1129
		1130	$EXTICMD{$name} = $cb;
926	}	1131	}
927		1132
928	cf::player->attach (	1133	cf::player->attach (
929	on_command => sub {	1134	on_command => sub {
930	my ($pl, $name, $params) = @_;	1135	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1144	cf::override;
940	},	1145	},
941	on_extcmd => sub {	1146	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1147	my ($pl, $buf) = @_;
943		1148
944	my $msg = eval { from_json $buf };	1149	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1150
946	if (ref $msg) {	1151	if (ref $msg) {
		1152	my ($type, $reply, @payload) =
		1153	"ARRAY" eq ref $msg
		1154	? @$msg
		1155	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1156
		1157	my @reply;
		1158
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1159	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1160	@reply = $cb->($pl, @payload);
949	$pl->ext_reply ($msg->{msgid}, %reply);
950	}
951	}	1161	}
		1162
		1163	$pl->ext_reply ($reply, @reply)
		1164	if $reply;
		1165
952	} else {	1166	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1167	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1168	}
955		1169
956	cf::override;	1170	cf::override;
957	},	1171	},
958	);	1172	);
959		1173
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1174	sub load_extensions {
		1175	cf::sync_job {
		1176	my %todo;
		1177
		1178	for my $path (<$LIBDIR/*.ext>) {
		1179	next unless -r $path;
		1180
		1181	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1182	my $base = $1;
		1183	my $pkg = $1;
		1184	$pkg =~ s/[^[:word:]]/_/g;
		1185	$pkg = "ext::$pkg";
		1186
		1187	open my $fh, "<:utf8", $path
		1188	or die "$path: $!";
		1189
		1190	my $source = do { local $/; <$fh> };
		1191
		1192	my %ext = (
		1193	path => $path,
		1194	base => $base,
		1195	pkg => $pkg,
		1196	);
		1197
		1198	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1199	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1200
		1201	$ext{source} =
		1202	"package $pkg; use strict; use utf8;\n"
		1203	. "#line 1 \"$path\"\n{\n"
		1204	. $source
		1205	. "\n};\n1";
		1206
		1207	$todo{$base} = \%ext;
		1208	}
		1209
		1210	my %done;
		1211	while (%todo) {
		1212	my $progress;
		1213
		1214	while (my ($k, $v) = each %todo) {
		1215	for (split /,\s*/, $v->{meta}{depends}) {
		1216	goto skip
		1217	unless exists $done{$_};
		1218	}
		1219
		1220	warn "... loading '$k' into '$v->{pkg}'\n";
		1221
		1222	unless (eval $v->{source}) {
		1223	my $msg = $@ ? "$v->{path}: $@\n"
		1224	: "$v->{base}: extension inactive.\n";
		1225
		1226	if (exists $v->{meta}{mandatory}) {
		1227	warn $msg;
		1228	warn "mandatory extension failed to load, exiting.\n";
		1229	exit 1;
		1230	}
		1231
		1232	warn $msg;
		1233	}
		1234
		1235	$done{$k} = delete $todo{$k};
		1236	push @EXTS, $v->{pkg};
		1237	$progress = 1;
		1238	}
		1239
		1240	skip:
		1241	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1242	unless $progress;
		1243	}
		1244	};
		1245	}
		1246
		1247	#############################################################################
		1248
		1249	=back
		1250
		1251	=head2 CORE EXTENSIONS
		1252
		1253	Functions and methods that extend core crossfire objects.
		1254
		1255	=cut
		1256
		1257	package cf::player;
		1258
		1259	use Coro::AIO;
		1260
		1261	=head3 cf::player
		1262
		1263	=over 4
		1264
		1265	=item cf::player::find $login
		1266
		1267	Returns the given player object, loading it if necessary (might block).
		1268
		1269	=cut
		1270
		1271	sub playerdir($) {
		1272	"$PLAYERDIR/"
		1273	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1274	}
		1275
		1276	sub path($) {
		1277	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1278
		1279	(playerdir $login) . "/playerdata"
		1280	}
		1281
		1282	sub find_active($) {
		1283	$cf::PLAYER{$_[0]}
		1284	and $cf::PLAYER{$_[0]}->active
		1285	and $cf::PLAYER{$_[0]}
		1286	}
		1287
		1288	sub exists($) {
		1289	my ($login) = @_;
		1290
		1291	$cf::PLAYER{$login}
		1292	or cf::sync_job { !aio_stat path $login }
		1293	}
		1294
		1295	sub find($) {
		1296	return $cf::PLAYER{$_[0]} || do {
		1297	my $login = $_[0];
		1298
		1299	my $guard = cf::lock_acquire "user_find:$login";
		1300
		1301	$cf::PLAYER{$_[0]} || do {
		1302	# rename old playerfiles to new ones
		1303	#TODO: remove when no longer required
		1304	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1305	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1306	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1307	aio_unlink +(playerdir $login) . "/$login.pl";
		1308
		1309	my $pl = load_pl path $login
		1310	or return;
		1311	$cf::PLAYER{$login} = $pl
		1312	}
		1313	}
		1314	}
		1315
		1316	sub save($) {
		1317	my ($pl) = @_;
		1318
		1319	return if $pl->{deny_save};
		1320
		1321	my $path = path $pl;
		1322	my $guard = cf::lock_acquire "user_save:$path";
		1323
		1324	return if $pl->{deny_save};
		1325
		1326	aio_mkdir playerdir $pl, 0770;
		1327	$pl->{last_save} = $cf::RUNTIME;
		1328
		1329	$pl->save_pl ($path);
		1330	cf::cede_to_tick;
		1331	}
		1332
		1333	sub new($) {
		1334	my ($login) = @_;
		1335
		1336	my $self = create;
		1337
		1338	$self->ob->name ($login);
		1339	$self->{deny_save} = 1;
		1340
		1341	$cf::PLAYER{$login} = $self;
		1342
		1343	$self
		1344	}
		1345
		1346	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1347
		1348	=cut
		1349
		1350	sub send_msg {
		1351	my $ns = shift->ns
		1352	or return;
		1353	$ns->send_msg (@_);
		1354	}
		1355
		1356	=item $pl->quit_character
		1357
		1358	Nukes the player without looking back. If logged in, the connection will
		1359	be destroyed. May block for a long time.
		1360
		1361	=cut
		1362
		1363	sub quit_character {
		1364	my ($pl) = @_;
		1365
		1366	my $name = $pl->ob->name;
		1367
		1368	$pl->{deny_save} = 1;
		1369	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1370
		1371	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1372	$pl->deactivate;
		1373	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1374	$pl->ns->destroy if $pl->ns;
		1375
		1376	my $path = playerdir $pl;
		1377	my $temp = "$path~$cf::RUNTIME~deleting~";
		1378	aio_rename $path, $temp;
		1379	delete $cf::PLAYER{$pl->ob->name};
		1380	$pl->destroy;
		1381
		1382	my $prefix = qr<^~\Q$name\E/>;
		1383
		1384	# nuke player maps
		1385	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1386
		1387	IO::AIO::aio_rmtree $temp;
		1388	}
		1389
		1390	=item $pl->kick
		1391
		1392	Kicks a player out of the game. This destroys the connection.
		1393
		1394	=cut
		1395
		1396	sub kick {
		1397	my ($pl, $kicker) = @_;
		1398
		1399	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1400	$pl->killer ("kicked");
		1401	$pl->ns->destroy;
		1402	}
		1403
		1404	=item cf::player::list_logins
		1405
		1406	Returns am arrayref of all valid playernames in the system, can take a
		1407	while and may block, so not sync_job-capable, ever.
		1408
		1409	=cut
		1410
		1411	sub list_logins {
		1412	my $dirs = aio_readdir $PLAYERDIR
		1413	or return [];
		1414
		1415	my @logins;
		1416
		1417	for my $login (@$dirs) {
		1418	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1419	aio_read $fh, 0, 512, my $buf, 0 or next;
		1420	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1421
		1422	utf8::decode $login;
		1423	push @logins, $login;
		1424	}
		1425
		1426	\@logins
		1427	}
		1428
		1429	=item $player->maps
		1430
		1431	Returns an arrayref of map paths that are private for this
		1432	player. May block.
		1433
		1434	=cut
		1435
		1436	sub maps($) {
		1437	my ($pl) = @_;
		1438
		1439	$pl = ref $pl ? $pl->ob->name : $pl;
		1440
		1441	my $files = aio_readdir playerdir $pl
		1442	or return;
		1443
		1444	my @paths;
		1445
		1446	for (@$files) {
		1447	utf8::decode $_;
		1448	next if /\.(?:pl|pst)$/;
		1449	next unless /^$PATH_SEP/o;
		1450
		1451	push @paths, cf::map::normalise "~$pl/$_";
		1452	}
		1453
		1454	\@paths
		1455	}
		1456
		1457	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1458
		1459	Expand crossfire pod fragments into protocol xml.
		1460
		1461	=cut
		1462
		1463	sub expand_cfpod {
		1464	((my $self), (local $_)) = @_;
		1465
		1466	# escape & and <
		1467	s/&/&amp;/g;
		1468	s/(?<![BIUGHT])</&lt;/g;
		1469
		1470	# this is buggy, it needs to properly take care of nested <'s
		1471
		1472	1 while
		1473	# replace B<>, I<>, U<> etc.
		1474	s/B<([^\>]*)>/<b>$1<\/b>/
		1475	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1476	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1477	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1478	# replace G<male|female> tags
		1479	|| s{G<([^>|]*)\|([^>]*)>}{
		1480	$self->gender ? $2 : $1
		1481	}ge
		1482	# replace H<hint text>
		1483	|| s{H<([^\>]*)>}
		1484	{
		1485	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1486	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1487	"")
		1488	[$self->{hintmode}]
		1489	}ge;
		1490
		1491	# create single paragraphs (very hackish)
		1492	s/(?<=\S)\n(?=\w)/ /g;
		1493
		1494	# compress some whitespace
		1495	s/\s+\n/\n/g; # ws line-ends
		1496	s/\n\n+/\n/g; # double lines
		1497	s/^\n+//; # beginning lines
		1498	s/\n+$//; # ending lines
		1499
		1500	$_
		1501	}
		1502
		1503	sub hintmode {
		1504	$_[0]{hintmode} = $_[1] if @_ > 1;
		1505	$_[0]{hintmode}
		1506	}
		1507
		1508	=item $player->ext_reply ($msgid, @msg)
		1509
		1510	Sends an ext reply to the player.
		1511
		1512	=cut
		1513
		1514	sub ext_reply($$@) {
		1515	my ($self, $id, @msg) = @_;
		1516
		1517	$self->ns->ext_reply ($id, @msg)
		1518	}
		1519
		1520	=item $player->ext_msg ($type, @msg)
		1521
		1522	Sends an ext event to the client.
		1523
		1524	=cut
		1525
		1526	sub ext_msg($$@) {
		1527	my ($self, $type, @msg) = @_;
		1528
		1529	$self->ns->ext_msg ($type, @msg);
		1530	}
		1531
		1532	=head3 cf::region
		1533
		1534	=over 4
		1535
		1536	=cut
		1537
		1538	package cf::region;
		1539
		1540	=item cf::region::find_by_path $path
		1541
		1542	Tries to decuce the likely region for a map knowing only its path.
		1543
		1544	=cut
		1545
		1546	sub find_by_path($) {
967	my ($path) = @_;	1547	my ($path) = @_;
968		1548
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1549	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1550
975	warn "loading '$path' into '$pkg'\n";	1551	for my $region (list) {
976		1552	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1553	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1554	if $region->specificity > $specificity;
979		1555	}
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	# }	1556	}
1009		1557
1010	# remove commands	1558	$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	}	1559	}
1116		1560
1117	=back	1561	=back
1118
1119		1562
1120	=head3 cf::map	1563	=head3 cf::map
1121		1564
1122	=over 4	1565	=over 4
1123		1566
…		…
1126	package cf::map;	1569	package cf::map;
1127		1570
1128	use Fcntl;	1571	use Fcntl;
1129	use Coro::AIO;	1572	use Coro::AIO;
1130		1573
		1574	use overload
		1575	'""' => \&as_string,
		1576	fallback => 1;
		1577
1131	our $MAX_RESET = 7200;	1578	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1579	our $DEFAULT_RESET = 3000;
1133		1580
1134	sub generate_random_map {	1581	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1582	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1583	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1584	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1585	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1586	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1587	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1588	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1589	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1590	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1591	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1592	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1593	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1594	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1595	(cf::region::find $rmp->{region}), $rmp->{custom}
		1596	)
		1597	}
		1598
		1599	=item cf::map->register ($regex, $prio)
		1600
		1601	Register a handler for the map path matching the given regex at the
		1602	givne priority (higher is better, built-in handlers have priority 0, the
		1603	default).
		1604
		1605	=cut
		1606
		1607	sub register {
		1608	my (undef, $regex, $prio) = @_;
		1609	my $pkg = caller;
		1610
		1611	no strict;
		1612	push @{"$pkg\::ISA"}, __PACKAGE__;
		1613
		1614	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1615	}
		1616
		1617	# also paths starting with '/'
		1618	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1619
		1620	sub thawer_merge {
		1621	my ($self, $merge) = @_;
		1622
		1623	# we have to keep some variables in memory intact
		1624	local $self->{path};
		1625	local $self->{load_path};
		1626
		1627	$self->SUPER::thawer_merge ($merge);
		1628	}
		1629
		1630	sub normalise {
		1631	my ($path, $base) = @_;
		1632
		1633	$path = "$path"; # make sure its a string
		1634
		1635	$path =~ s/\.map$//;
		1636
		1637	# map plan:
		1638	#
		1639	# /! non-realised random map exit (special hack!)
		1640	# {... are special paths that are not being touched
		1641	# ?xxx/... are special absolute paths
		1642	# ?random/... random maps
		1643	# /... normal maps
		1644	# ~user/... per-player map of a specific user
		1645
		1646	$path =~ s/$PATH_SEP/\//go;
		1647
		1648	# treat it as relative path if it starts with
		1649	# something that looks reasonable
		1650	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1651	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1652
		1653	$base =~ s{[^/]+/?$}{};
		1654	$path = "$base/$path";
		1655	}
		1656
		1657	for ($path) {
		1658	redo if s{//}{/};
		1659	redo if s{/\.?/}{/};
		1660	redo if s{/[^/]+/\.\./}{/};
		1661	}
		1662
		1663	$path
		1664	}
		1665
		1666	sub new_from_path {
		1667	my (undef, $path, $base) = @_;
		1668
		1669	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1670
		1671	$path = normalise $path, $base;
		1672
		1673	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1674	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1675	my $self = bless cf::map::new, $pkg;
		1676	$self->{path} = $path; $self->path ($path);
		1677	$self->init; # pass $1 etc.
		1678	return $self;
		1679	}
		1680	}
		1681
		1682	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1683	()
		1684	}
		1685
		1686	sub init {
		1687	my ($self) = @_;
		1688
		1689	$self
		1690	}
		1691
		1692	sub as_string {
		1693	my ($self) = @_;
		1694
		1695	"$self->{path}"
		1696	}
		1697
		1698	# the displayed name, this is a one way mapping
		1699	sub visible_name {
		1700	&as_string
		1701	}
		1702
		1703	# the original (read-only) location
		1704	sub load_path {
		1705	my ($self) = @_;
		1706
		1707	"$MAPDIR/$self->{path}.map"
		1708	}
		1709
		1710	# the temporary/swap location
		1711	sub save_path {
		1712	my ($self) = @_;
		1713
		1714	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1715	"$TMPDIR/$path.map"
		1716	}
		1717
		1718	# the unique path, undef == no special unique path
		1719	sub uniq_path {
		1720	my ($self) = @_;
		1721
		1722	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1723	"$UNIQUEDIR/$path"
1151	}	1724	}
1152		1725
1153	# and all this just because we cannot iterate over	1726	# and all this just because we cannot iterate over
1154	# all maps in C++...	1727	# all maps in C++...
1155	sub change_all_map_light {	1728	sub change_all_map_light {
1156	my ($change) = @_;	1729	my ($change) = @_;
1157		1730
1158	$_->change_map_light ($change) for values %cf::MAP;	1731	$_->change_map_light ($change)
		1732	for grep $_->outdoor, values %cf::MAP;
1159	}	1733	}
1160		1734
		1735	sub decay_objects {
		1736	my ($self) = @_;
		1737
		1738	return if $self->{deny_reset};
		1739
		1740	$self->do_decay_objects;
		1741	}
		1742
		1743	sub unlink_save {
		1744	my ($self) = @_;
		1745
		1746	utf8::encode (my $save = $self->save_path);
		1747	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1748	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1749	}
		1750
1161	sub try_load_header($) {	1751	sub load_header_from($) {
1162	my ($path) = @_;	1752	my ($self, $path) = @_;
1163		1753
1164	utf8::encode $path;	1754	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1755	#aio_open $path, O_RDONLY, 0
		1756	# or return;
		1757
		1758	$self->_load_header ($path)
1166	or return;	1759	or return;
1167		1760
1168	my $map = cf::map::new	1761	$self->{load_path} = $path;
		1762
		1763	1
		1764	}
		1765
		1766	sub load_header_orig {
		1767	my ($self) = @_;
		1768
		1769	$self->load_header_from ($self->load_path)
		1770	}
		1771
		1772	sub load_header_temp {
		1773	my ($self) = @_;
		1774
		1775	$self->load_header_from ($self->save_path)
		1776	}
		1777
		1778	sub prepare_temp {
		1779	my ($self) = @_;
		1780
		1781	$self->last_access ((delete $self->{last_access})
		1782	|| $cf::RUNTIME); #d#
		1783	# safety
		1784	$self->{instantiate_time} = $cf::RUNTIME
		1785	if $self->{instantiate_time} > $cf::RUNTIME;
		1786	}
		1787
		1788	sub prepare_orig {
		1789	my ($self) = @_;
		1790
		1791	$self->{load_original} = 1;
		1792	$self->{instantiate_time} = $cf::RUNTIME;
		1793	$self->last_access ($cf::RUNTIME);
		1794	$self->instantiate;
		1795	}
		1796
		1797	sub load_header {
		1798	my ($self) = @_;
		1799
		1800	if ($self->load_header_temp) {
		1801	$self->prepare_temp;
		1802	} else {
		1803	$self->load_header_orig
1169	or return;	1804	or return;
		1805	$self->prepare_orig;
		1806	}
1170		1807
1171	$map->load_header ($path)	1808	$self->{deny_reset} = 1
1172	or return;	1809	if $self->no_reset;
1173		1810
1174	$map->{load_path} = $path;	1811	$self->default_region (cf::region::find_by_path $self->{path})
		1812	unless $self->default_region;
1175		1813
1176	$map	1814	1
1177	}	1815	}
1178		1816
		1817	sub find;
1179	sub find_map {	1818	sub find {
1180	my ($path, $origin) = @_;	1819	my ($path, $origin) = @_;
1181		1820
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1821	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1822
1187	cf::lock_wait "map_find:$key";	1823	cf::lock_wait "map_find:$path";
1188		1824
1189	$cf::MAP{$key} || do {	1825	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1826	my $guard = cf::lock_acquire "map_find:$path";
1191		1827	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1828	or return;
1207		1829
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	1830	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		1831
1221	if ($map->should_reset) {	1832	$map->load_header
		1833	or return;
		1834
		1835	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1836	# doing this can freeze the server in a sync job, obviously
		1837	#$cf::WAIT_FOR_TICK->wait;
1222	$map->reset;	1838	$map->reset;
1223	$map = find_map $path;	1839	undef $guard;
		1840	return find $path;
1224	}	1841	}
1225		1842
1226	$cf::MAP{$key} = $map	1843	$cf::MAP{$path} = $map
1227	}	1844	}
1228	}	1845	}
		1846
		1847	sub pre_load { }
		1848	sub post_load { }
1229		1849
1230	sub load {	1850	sub load {
1231	my ($self) = @_;	1851	my ($self) = @_;
1232		1852
		1853	local $self->{deny_reset} = 1; # loading can take a long time
		1854
1233	my $path = $self->{path};	1855	my $path = $self->{path};
		1856
		1857	{
		1858	my $guard1 = cf::lock_acquire "map_data:$path";
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1859	my $guard2 = cf::lock_acquire "map_load:$path";
1235		1860
1236	return if $self->in_memory != cf::MAP_SWAPPED;	1861	return if $self->in_memory != cf::MAP_SWAPPED;
1237		1862
1238	$self->in_memory (cf::MAP_LOADING);	1863	$self->in_memory (cf::MAP_LOADING);
1239		1864
1240	$self->alloc;	1865	$self->alloc;
		1866
		1867	$self->pre_load;
		1868	cf::cede_to_tick;
		1869
1241	$self->load_objects ($self->{load_path}, 1)	1870	$self->_load_objects ($self->{load_path}, 1)
1242	or return;	1871	or return;
1243		1872
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1873	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1245	if delete $self->{load_original};	1874	if delete $self->{load_original};
1246		1875
1247	if (my $uniq = $path->uniq_path) {	1876	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	1877	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	1878	if (aio_open $uniq, O_RDONLY, 0) {
1250	$self->clear_unique_items;	1879	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	1880	$self->_load_objects ($uniq, 0);
1252	}	1881	}
1253	}	1882	}
1254		1883
		1884	cf::cede_to_tick;
1255	# now do the right thing for maps	1885	# now do the right thing for maps
1256	$self->link_multipart_objects;	1886	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	1887	$self->difficulty ($self->estimate_difficulty)
1267	unless $self->difficulty;	1888	unless $self->difficulty;
		1889	cf::cede_to_tick;
		1890
		1891	unless ($self->{deny_activate}) {
		1892	$self->decay_objects;
		1893	$self->fix_auto_apply;
		1894	$self->update_buttons;
		1895	cf::cede_to_tick;
		1896	$self->set_darkness_map;
		1897	cf::cede_to_tick;
1268	$self->activate;	1898	$self->activate;
1269	}	1899	}
1270		1900
		1901	$self->{last_save} = $cf::RUNTIME;
		1902	$self->last_access ($cf::RUNTIME);
		1903
1271	$self->in_memory (cf::MAP_IN_MEMORY);	1904	$self->in_memory (cf::MAP_IN_MEMORY);
1272	}	1905	}
1273		1906
1274	sub load_map_sync {	1907	$self->post_load;
		1908	}
		1909
		1910	sub customise_for {
		1911	my ($self, $ob) = @_;
		1912
		1913	return find "~" . $ob->name . "/" . $self->{path}
		1914	if $self->per_player;
		1915
		1916	# return find "?party/" . $ob->name . "/" . $self->{path}
		1917	# if $self->per_party;
		1918
		1919	$self
		1920	}
		1921
		1922	# find and load all maps in the 3x3 area around a map
		1923	sub load_neighbours {
		1924	my ($map) = @_;
		1925
		1926	my @neigh; # diagonal neighbours
		1927
		1928	for (0 .. 3) {
		1929	my $neigh = $map->tile_path ($_)
		1930	or next;
		1931	$neigh = find $neigh, $map
		1932	or next;
		1933	$neigh->load;
		1934
		1935	push @neigh,
		1936	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1937	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1938	}
		1939
		1940	for (grep defined $_->[0], @neigh) {
		1941	my ($path, $origin) = @$_;
		1942	my $neigh = find $path, $origin
		1943	or next;
		1944	$neigh->load;
		1945	}
		1946	}
		1947
		1948	sub find_sync {
1275	my ($path, $origin) = @_;	1949	my ($path, $origin) = @_;
1276		1950
1277	#warn "load_map_sync<$path, $origin>\n";#d#	1951	cf::sync_job { find $path, $origin }
		1952	}
1278		1953
1279	cf::sync_job {	1954	sub do_load_sync {
1280	my $map = cf::map::find_map $path, $origin	1955	my ($map) = @_;
1281	or return;	1956
1282	$map->load;	1957	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1283	$map	1958	if $Coro::current == $Coro::main;
		1959
		1960	cf::sync_job { $map->load };
		1961	}
		1962
		1963	our %MAP_PREFETCH;
		1964	our $MAP_PREFETCHER = undef;
		1965
		1966	sub find_async {
		1967	my ($path, $origin, $load) = @_;
		1968
		1969	$path = normalise $path, $origin && $origin->{path};
		1970
		1971	if (my $map = $cf::MAP{$path}) {
		1972	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		1973	}
		1974
		1975	$MAP_PREFETCH{$path} |= $load;
		1976
		1977	$MAP_PREFETCHER ||= cf::async {
		1978	while (%MAP_PREFETCH) {
		1979	while (my ($k, $v) = each %MAP_PREFETCH) {
		1980	if (my $map = find $k) {
		1981	$map->load if $v;
		1982	}
		1983
		1984	delete $MAP_PREFETCH{$k};
		1985	}
		1986	}
		1987	undef $MAP_PREFETCHER;
1284	}	1988	};
		1989	$MAP_PREFETCHER->prio (6);
		1990
		1991	()
1285	}	1992	}
1286		1993
1287	sub save {	1994	sub save {
1288	my ($self) = @_;	1995	my ($self) = @_;
1289		1996
		1997	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1998
1290	$self->{last_save} = $cf::RUNTIME;	1999	$self->{last_save} = $cf::RUNTIME;
1291		2000
1292	return unless $self->dirty;	2001	return unless $self->dirty;
1293		2002
1294	my $save = $self->{path}->save_path; utf8::encode $save;	2003	my $save = $self->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2004	my $uniq = $self->uniq_path; utf8::encode $uniq;
1296		2005
1297	$self->{load_path} = $save;	2006	$self->{load_path} = $save;
1298		2007
1299	return if $self->{deny_save};	2008	return if $self->{deny_save};
1300		2009
		2010	local $self->{last_access} = $self->last_access;#d#
		2011
		2012	cf::async {
		2013	$_->contr->save for $self->players;
		2014	};
		2015
1301	if ($uniq) {	2016	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2017	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);	2018	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {	2019	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2020	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}	2021	}
1307	}	2022	}
1308		2023
1309	sub swap_out {	2024	sub swap_out {
1310	my ($self) = @_;	2025	my ($self) = @_;
		2026
		2027	# save first because save cedes
		2028	$self->save;
		2029
		2030	my $lock = cf::lock_acquire "map_data:$self->{path}";
1311		2031
1312	return if $self->players;	2032	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;	2033	return if $self->in_memory != cf::MAP_IN_MEMORY;
1314	return if $self->{deny_save};	2034	return if $self->{deny_save};
1315		2035
1316	$self->save;
1317	$self->clear;	2036	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);	2037	$self->in_memory (cf::MAP_SWAPPED);
1319	}	2038	}
1320		2039
1321	sub reset_at {	2040	sub reset_at {
1322	my ($self) = @_;	2041	my ($self) = @_;
1323		2042
1324	# TODO: safety, remove and allow resettable per-player maps	2043	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};
1326	return 1e99 if $self->{deny_reset};	2044	return 1e99 if $self->{deny_reset};
1327		2045
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2046	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2047	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		2048
…		…
1335	my ($self) = @_;	2053	my ($self) = @_;
1336		2054
1337	$self->reset_at <= $cf::RUNTIME	2055	$self->reset_at <= $cf::RUNTIME
1338	}	2056	}
1339		2057
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	2058	sub reset {
1362	my ($self) = @_;	2059	my ($self) = @_;
1363		2060
		2061	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2062
1364	return if $self->players;	2063	return if $self->players;
1365	return if $self->{path}{user_rel};#d#
1366		2064
1367	warn "resetting map ", $self->path;#d#	2065	warn "resetting map ", $self->path;
		2066
		2067	$self->in_memory (cf::MAP_SWAPPED);
		2068
		2069	# need to save uniques path
		2070	unless ($self->{deny_save}) {
		2071	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2072
		2073	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2074	if $uniq;
		2075	}
1368		2076
1369	delete $cf::MAP{$self->path};	2077	delete $cf::MAP{$self->path};
		2078
		2079	$self->clear;
1370		2080
1371	$_->clear_links_to ($self) for values %cf::MAP;	2081	$_->clear_links_to ($self) for values %cf::MAP;
1372		2082
1373	$self->unlink_save;	2083	$self->unlink_save;
1374	$self->destroy;	2084	$self->destroy;
…		…
1377	my $nuke_counter = "aaaa";	2087	my $nuke_counter = "aaaa";
1378		2088
1379	sub nuke {	2089	sub nuke {
1380	my ($self) = @_;	2090	my ($self) = @_;
1381		2091
		2092	{
		2093	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2094
		2095	delete $cf::MAP{$self->path};
		2096
		2097	$self->unlink_save;
		2098
		2099	bless $self, "cf::map";
		2100	delete $self->{deny_reset};
1382	$self->{deny_save} = 1;	2101	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	2102	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	2103	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2104
		2105	$cf::MAP{$self->path} = $self;
		2106	}
		2107
1385	$self->reset; # polite request, might not happen	2108	$self->reset; # polite request, might not happen
1386	}	2109	}
1387		2110
1388	sub customise_for {	2111	=item $maps = cf::map::tmp_maps
1389	my ($map, $ob) = @_;
1390		2112
1391	if ($map->per_player) {	2113	Returns an arrayref with all map paths of currently instantiated and saved
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2114	maps. May block.
		2115
		2116	=cut
		2117
		2118	sub tmp_maps() {
1393	}	2119	[
1394		2120	map {
1395	$map	2121	utf8::decode $_;
		2122	/\.map$/
		2123	? normalise $_
		2124	: ()
		2125	} @{ aio_readdir $TMPDIR or [] }
		2126	]
1396	}	2127	}
1397		2128
1398	sub emergency_save {	2129	=item $maps = cf::map::random_maps
1399	local $cf::FREEZE = 1;
1400		2130
1401	warn "enter emergency map save\n";	2131	Returns an arrayref with all map paths of currently instantiated and saved
		2132	random maps. May block.
1402		2133
1403	cf::sync_job {	2134	=cut
1404	warn "begin emergency map save\n";
1405	$_->save for values %cf::MAP;
1406	};
1407		2135
1408	warn "end emergency map save\n";	2136	sub random_maps() {
		2137	[
		2138	map {
		2139	utf8::decode $_;
		2140	/\.map$/
		2141	? normalise "?random/$_"
		2142	: ()
		2143	} @{ aio_readdir $RANDOMDIR or [] }
		2144	]
		2145	}
		2146
		2147	=item cf::map::unique_maps
		2148
		2149	Returns an arrayref of paths of all shared maps that have
		2150	instantiated unique items. May block.
		2151
		2152	=cut
		2153
		2154	sub unique_maps() {
		2155	[
		2156	map {
		2157	utf8::decode $_;
		2158	/\.map$/
		2159	? normalise $_
		2160	: ()
		2161	} @{ aio_readdir $UNIQUEDIR or [] }
		2162	]
1409	}	2163	}
1410		2164
1411	package cf;	2165	package cf;
1412		2166
1413	=back	2167	=back
1414		2168
		2169	=head3 cf::object
		2170
		2171	=cut
		2172
		2173	package cf::object;
		2174
		2175	=over 4
		2176
		2177	=item $ob->inv_recursive
		2178
		2179	Returns the inventory of the object _and_ their inventories, recursively.
		2180
		2181	=cut
		2182
		2183	sub inv_recursive_;
		2184	sub inv_recursive_ {
		2185	map { $_, inv_recursive_ $_->inv } @_
		2186	}
		2187
		2188	sub inv_recursive {
		2189	inv_recursive_ inv $_[0]
		2190	}
		2191
		2192	package cf;
		2193
		2194	=back
1415		2195
1416	=head3 cf::object::player	2196	=head3 cf::object::player
1417		2197
1418	=over 4	2198	=over 4
1419		2199
…		…
1433		2213
1434	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2214	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1435		2215
1436	if ($self->{record_replies}) {	2216	if ($self->{record_replies}) {
1437	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2217	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2218
1438	} else {	2219	} else {
		2220	my $pl = $self->contr;
		2221
		2222	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2223	my $dialog = $pl->{npc_dialog};
		2224	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2225
		2226	} else {
1439	$msg = $npc->name . " says: $msg" if $npc;	2227	$msg = $npc->name . " says: $msg" if $npc;
1440	$self->message ($msg, $flags);	2228	$self->message ($msg, $flags);
		2229	}
1441	}	2230	}
		2231	}
		2232
		2233	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2234
		2235	=cut
		2236
		2237	sub cf::object::send_msg {
		2238	my $pl = shift->contr
		2239	or return;
		2240	$pl->send_msg (@_);
1442	}	2241	}
1443		2242
1444	=item $player_object->may ("access")	2243	=item $player_object->may ("access")
1445		2244
1446	Returns wether the given player is authorized to access resource "access"	2245	Returns wether the given player is authorized to access resource "access"
…		…
1459		2258
1460	=item $player_object->enter_link	2259	=item $player_object->enter_link
1461		2260
1462	Freezes the player and moves him/her to a special map (C<{link}>).	2261	Freezes the player and moves him/her to a special map (C<{link}>).
1463		2262
1464	The player should be reaosnably safe there for short amounts of time. You	2263	The player should be reasonably safe there for short amounts of time. You
1465	I<MUST> call C<leave_link> as soon as possible, though.	2264	I<MUST> call C<leave_link> as soon as possible, though.
1466		2265
		2266	Will never block.
		2267
1467	=item $player_object->leave_link ($map, $x, $y)	2268	=item $player_object->leave_link ($map, $x, $y)
1468		2269
1469	Moves the player out of the specila link map onto the given map. If the	2270	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	2271	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	2272	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	2273	fails, to the emergency map position.
1473		2274
1474	Might block.	2275	Might block.
1475		2276
1476	=cut	2277	=cut
		2278
		2279	sub link_map {
		2280	unless ($LINK_MAP) {
		2281	$LINK_MAP = cf::map::find "{link}"
		2282	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2283	$LINK_MAP->load;
		2284	}
		2285
		2286	$LINK_MAP
		2287	}
1477		2288
1478	sub cf::object::player::enter_link {	2289	sub cf::object::player::enter_link {
1479	my ($self) = @_;	2290	my ($self) = @_;
1480		2291
1481	$self->deactivate_recursive;	2292	$self->deactivate_recursive;
1482		2293
1483	return if $self->map == $LINK_MAP;	2294	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		2295
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2296	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	2297	if $self->map && $self->map->{path} ne "{link}";
1487		2298
1488	$self->enter_map ($LINK_MAP, 20, 20);	2299	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1489	}	2300	}
1490		2301
1491	sub cf::object::player::leave_link {	2302	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	2303	my ($self, $map, $x, $y) = @_;
		2304
		2305	return unless $self->contr->active;
1493		2306
1494	my $link_pos = delete $self->{_link_pos};	2307	my $link_pos = delete $self->{_link_pos};
1495		2308
1496	unless ($map) {	2309	unless ($map) {
1497	# restore original map position	2310	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	2311	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	2312	$map = cf::map::find $map;
1500		2313
1501	unless ($map) {	2314	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	2315	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	2316	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	2317	or die "FATAL: cannot load emergency map\n";
1505	}	2318	}
1506	}	2319	}
1507		2320
1508	($x, $y) = (-1, -1)	2321	($x, $y) = (-1, -1)
…		…
1511	# use -1 or undef as default coordinates, not 0, 0	2324	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	2325	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	2326	if $x <=0 && $y <= 0;
1514		2327
1515	$map->load;	2328	$map->load;
		2329	$map->load_neighbours;
1516		2330
		2331	return unless $self->contr->active;
1517	$self->activate_recursive;	2332	$self->activate_recursive;
		2333
		2334	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1518	$self->enter_map ($map, $x, $y);	2335	$self->enter_map ($map, $x, $y);
1519	}	2336	}
1520		2337
1521	cf::player->attach (	2338	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1522	on_logout => sub {
1523	my ($pl) = @_;
1524		2339
1525	# abort map switching before logout	2340	Moves the player to the given map-path and coordinates by first freezing
1526	if ($pl->ob->{_link_pos}) {	2341	her, loading and preparing them map, calling the provided $check callback
1527	cf::sync_job {	2342	that has to return the map if sucecssful, and then unfreezes the player on
1528	$pl->ob->leave_link	2343	the new (success) or old (failed) map position. In either case, $done will
1529	};	2344	be called at the end of this process.
1530	}
1531	},
1532	on_login => sub {
1533	my ($pl) = @_;
1534		2345
1535	# try to abort aborted map switching on player login :)
1536	# should happen only on crashes
1537	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;
1539	Coro::async {
1540	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;
1544	};
1545	}
1546	},
1547	);
1548
1549	=item $player_object->goto_map ($path, $x, $y)
1550
1551	=cut	2346	=cut
1552		2347
		2348	our $GOTOGEN;
		2349
1553	sub cf::object::player::goto_map {	2350	sub cf::object::player::goto {
1554	my ($self, $path, $x, $y) = @_;	2351	my ($self, $path, $x, $y, $check, $done) = @_;
		2352
		2353	# do generation counting so two concurrent goto's will be executed in-order
		2354	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1555		2355
1556	$self->enter_link;	2356	$self->enter_link;
1557		2357
1558	(Coro::async {	2358	(async {
1559	$path = new cf::path $path;	2359	my $map = eval {
1560
1561	my $map = cf::map::find_map $path->as_string;	2360	my $map = cf::map::find $path;
		2361
		2362	if ($map) {
1562	$map = $map->customise_for ($self) if $map;	2363	$map = $map->customise_for ($self);
1563		2364	$map = $check->($map) if $check && $map;
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	2365	} else {
1565	# if $map;
1566
1567	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2366	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2367	}
1568		2368
		2369	$map
		2370	};
		2371
		2372	if ($@) {
		2373	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2374	LOG llevError | logBacktrace, Carp::longmess $@;
		2375	}
		2376
		2377	if ($gen == $self->{_goto_generation}) {
		2378	delete $self->{_goto_generation};
1569	$self->leave_link ($map, $x, $y);	2379	$self->leave_link ($map, $x, $y);
		2380	}
		2381
		2382	$done->() if $done;
1570	})->prio (1);	2383	})->prio (1);
1571	}	2384	}
1572		2385
1573	=item $player_object->enter_exit ($exit_object)	2386	=item $player_object->enter_exit ($exit_object)
1574		2387
…		…
1576		2389
1577	sub parse_random_map_params {	2390	sub parse_random_map_params {
1578	my ($spec) = @_;	2391	my ($spec) = @_;
1579		2392
1580	my $rmp = { # defaults	2393	my $rmp = { # defaults
1581	xsize => 10,	2394	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	2395	ysize => (cf::rndm 15, 40),
		2396	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2397	#layout => string,
1583	};	2398	};
1584		2399
1585	for (split /\n/, $spec) {	2400	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	2401	my ($k, $v) = split /\s+/, $_, 2;
1587		2402
…		…
1591	$rmp	2406	$rmp
1592	}	2407	}
1593		2408
1594	sub prepare_random_map {	2409	sub prepare_random_map {
1595	my ($exit) = @_;	2410	my ($exit) = @_;
		2411
		2412	my $guard = cf::lock_acquire "exit_prepare:$exit";
1596		2413
1597	# all this does is basically replace the /! path by	2414	# all this does is basically replace the /! path by
1598	# a new random map path (?random/...) with a seed	2415	# a new random map path (?random/...) with a seed
1599	# that depends on the exit object	2416	# that depends on the exit object
1600		2417
1601	my $rmp = parse_random_map_params $exit->msg;	2418	my $rmp = parse_random_map_params $exit->msg;
1602		2419
1603	if ($exit->map) {	2420	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	2421	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2422	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2423	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2424	$rmp->{origin_y} = $exit->y;
1608	}	2425	}
1609		2426
1610	$rmp->{random_seed} ||= $exit->random_seed;	2427	$rmp->{random_seed} ||= $exit->random_seed;
1611		2428
1612	my $data = cf::to_json $rmp;	2429	my $data = cf::to_json $rmp;
1613	my $md5 = Digest::MD5::md5_hex $data;	2430	my $md5 = Digest::MD5::md5_hex $data;
		2431	my $meta = "$RANDOMDIR/$md5.meta";
1614		2432
1615	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2433	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1616	aio_write $fh, 0, (length $data), $data, 0;	2434	aio_write $fh, 0, (length $data), $data, 0;
		2435	undef $fh;
		2436	aio_rename "$meta~", $meta;
1617		2437
1618	$exit->slaying ("?random/$md5");	2438	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2439	$exit->msg (undef);
1620	}	2440	}
1621	}	2441	}
…		…
1623	sub cf::object::player::enter_exit {	2443	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2444	my ($self, $exit) = @_;
1625		2445
1626	return unless $self->type == cf::PLAYER;	2446	return unless $self->type == cf::PLAYER;
1627		2447
		2448	if ($exit->slaying eq "/!") {
		2449	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2450	# the problem is that $exit might not survive long enough
		2451	# so it needs to be done right now, right here
		2452	cf::sync_job { prepare_random_map $exit };
		2453	}
		2454
		2455	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2456	my $hp = $exit->stats->hp;
		2457	my $sp = $exit->stats->sp;
		2458
1628	$self->enter_link;	2459	$self->enter_link;
1629		2460
		2461	# if exit is damned, update players death & WoR home-position
		2462	$self->contr->savebed ($slaying, $hp, $sp)
		2463	if $exit->flag (FLAG_DAMNED);
		2464
1630	(Coro::async {	2465	(async {
		2466	$self->deactivate_recursive; # just to be sure
1631	unless (eval {	2467	unless (eval {
1632		2468	$self->goto ($slaying, $hp, $sp);
1633	prepare_random_map $exit
1634	if $exit->slaying eq "/!";
1635
1636	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1638		2469
1639	1;	2470	1;
1640	}) {	2471	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2472	$self->message ("Something went wrong deep within the crossfire server. "
1642	. "I'll try to bring you back to the map you were before. "	2473	. "I'll try to bring you back to the map you were before. "
1643	. "Please report this to the dungeon master",	2474	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2475	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2476
1646	warn "ERROR in enter_exit: $@";	2477	warn "ERROR in enter_exit: $@";
1647	$self->leave_link;	2478	$self->leave_link;
1648	}	2479	}
1649	})->prio (1);	2480	})->prio (1);
…		…
1662		2493
1663	sub cf::client::send_drawinfo {	2494	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2495	my ($self, $text, $flags) = @_;
1665		2496
1666	utf8::encode $text;	2497	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2498	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2499	}
1669		2500
		2501	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2502
		2503	Send a drawinfo or msg packet to the client, formatting the msg for the
		2504	client if neccessary. C<$type> should be a string identifying the type of
		2505	the message, with C<log> being the default. If C<$color> is negative, suppress
		2506	the message unless the client supports the msg packet.
		2507
		2508	=cut
		2509
		2510	our %CHANNEL = (
		2511	"c/identify" => {
		2512	id => "identify",
		2513	title => "Identify",
		2514	reply => undef,
		2515	tooltip => "Items recently identified",
		2516	},
		2517	"c/examine" => {
		2518	id => "examine",
		2519	title => "Examine",
		2520	reply => undef,
		2521	tooltip => "Signs and other items you examined",
		2522	},
		2523	);
		2524
		2525	sub cf::client::send_msg {
		2526	my ($self, $channel, $msg, $color, @extra) = @_;
		2527
		2528	$msg = $self->pl->expand_cfpod ($msg);
		2529
		2530	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2531
		2532	# check predefined channels, for the benefit of C
		2533	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2534
		2535	if (ref $channel) {
		2536	# send meta info to client, if not yet sent
		2537	unless (exists $self->{channel}{$channel->{id}}) {
		2538	$self->{channel}{$channel->{id}} = $channel;
		2539	$self->ext_msg (channel_info => $channel);
		2540	}
		2541
		2542	$channel = $channel->{id};
		2543	}
		2544
		2545	return unless @extra || length $msg;
		2546
		2547	if ($self->can_msg) {
		2548	# default colour, mask it out
		2549	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2550	if $color & cf::NDI_DEF;
		2551
		2552	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2553	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2554	} else {
		2555	if ($color >= 0) {
		2556	# replace some tags by gcfclient-compatible ones
		2557	for ($msg) {
		2558	1 while
		2559	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2560	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2561	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2562	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2563	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2564	}
		2565
		2566	$color &= cf::NDI_COLOR_MASK;
		2567
		2568	utf8::encode $msg;
		2569
		2570	if (0 && $msg =~ /\[/) {
		2571	# COMMAND/INFO
		2572	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2573	} else {
		2574	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2575	$self->send_packet ("drawinfo $color $msg")
		2576	}
		2577	}
		2578	}
		2579	}
		2580
		2581	=item $client->ext_msg ($type, @msg)
		2582
		2583	Sends an ext event to the client.
		2584
		2585	=cut
		2586
		2587	sub cf::client::ext_msg($$@) {
		2588	my ($self, $type, @msg) = @_;
		2589
		2590	if ($self->extcmd == 2) {
		2591	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2592	} elsif ($self->extcmd == 1) { # TODO: remove
		2593	push @msg, msgtype => "event_$type";
		2594	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2595	}
		2596	}
		2597
		2598	=item $client->ext_reply ($msgid, @msg)
		2599
		2600	Sends an ext reply to the client.
		2601
		2602	=cut
		2603
		2604	sub cf::client::ext_reply($$@) {
		2605	my ($self, $id, @msg) = @_;
		2606
		2607	if ($self->extcmd == 2) {
		2608	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2609	} elsif ($self->extcmd == 1) {
		2610	#TODO: version 1, remove
		2611	unshift @msg, msgtype => "reply", msgid => $id;
		2612	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2613	}
		2614	}
1670		2615
1671	=item $success = $client->query ($flags, "text", \&cb)	2616	=item $success = $client->query ($flags, "text", \&cb)
1672		2617
1673	Queues a query to the client, calling the given callback with	2618	Queues a query to the client, calling the given callback with
1674	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2619	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1675	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2620	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1676		2621
1677	Queries can fail, so check the return code. Or don't, as queries will become	2622	Queries can fail, so check the return code. Or don't, as queries will
1678	reliable at some point in the future.	2623	become reliable at some point in the future.
1679		2624
1680	=cut	2625	=cut
1681		2626
1682	sub cf::client::query {	2627	sub cf::client::query {
1683	my ($self, $flags, $text, $cb) = @_;	2628	my ($self, $flags, $text, $cb) = @_;
…		…
1691	utf8::encode $text;	2636	utf8::encode $text;
1692	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2637	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1693		2638
1694	$self->send_packet ($self->{query_queue}[0][0])	2639	$self->send_packet ($self->{query_queue}[0][0])
1695	if @{ $self->{query_queue} } == 1;	2640	if @{ $self->{query_queue} } == 1;
		2641
		2642	1
1696	}	2643	}
1697		2644
1698	cf::client->attach (	2645	cf::client->attach (
		2646	on_connect => sub {
		2647	my ($ns) = @_;
		2648
		2649	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2650	},
1699	on_reply => sub {	2651	on_reply => sub {
1700	my ($ns, $msg) = @_;	2652	my ($ns, $msg) = @_;
1701		2653
1702	# this weird shuffling is so that direct followup queries	2654	# this weird shuffling is so that direct followup queries
1703	# get handled first	2655	# get handled first
1704	my $queue = delete $ns->{query_queue};	2656	my $queue = delete $ns->{query_queue}
		2657	or return; # be conservative, not sure how that can happen, but we saw a crash here
1705		2658
1706	(shift @$queue)->[1]->($msg);	2659	(shift @$queue)->[1]->($msg);
		2660	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		2661
1708	push @{ $ns->{query_queue} }, @$queue;	2662	push @{ $ns->{query_queue} }, @$queue;
1709		2663
1710	if (@{ $ns->{query_queue} } == @$queue) {	2664	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	2665	if (@$queue) {
…		…
1713	} else {	2667	} else {
1714	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2668	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1715	}	2669	}
1716	}	2670	}
1717	},	2671	},
		2672	on_exticmd => sub {
		2673	my ($ns, $buf) = @_;
		2674
		2675	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2676
		2677	if (ref $msg) {
		2678	my ($type, $reply, @payload) =
		2679	"ARRAY" eq ref $msg
		2680	? @$msg
		2681	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2682
		2683	my @reply;
		2684
		2685	if (my $cb = $EXTICMD{$type}) {
		2686	@reply = $cb->($ns, @payload);
		2687	}
		2688
		2689	$ns->ext_reply ($reply, @reply)
		2690	if $reply;
		2691
		2692	} else {
		2693	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2694	}
		2695
		2696	cf::override;
		2697	},
1718	);	2698	);
1719		2699
1720	=item $client->coro (\&cb)	2700	=item $client->async (\&cb)
1721		2701
1722	Create a new coroutine, running the specified callback. The coroutine will	2702	Create a new coroutine, running the specified callback. The coroutine will
1723	be automatically cancelled when the client gets destroyed (e.g. on logout,	2703	be automatically cancelled when the client gets destroyed (e.g. on logout,
1724	or loss of connection).	2704	or loss of connection).
1725		2705
1726	=cut	2706	=cut
1727		2707
1728	sub cf::client::coro {	2708	sub cf::client::async {
1729	my ($self, $cb) = @_;	2709	my ($self, $cb) = @_;
1730		2710
1731	my $coro; $coro = async {	2711	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		2712
1738	$coro->on_destroy (sub {	2713	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	2714	delete $self->{_coro}{$coro+0};
1740	});	2715	});
1741		2716
…		…
1768	our $safe = new Safe "safe";	2743	our $safe = new Safe "safe";
1769	our $safe_hole = new Safe::Hole;	2744	our $safe_hole = new Safe::Hole;
1770		2745
1771	$SIG{FPE} = 'IGNORE';	2746	$SIG{FPE} = 'IGNORE';
1772		2747
1773	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2748	$safe->permit_only (Opcode::opset qw(
		2749	:base_core :base_mem :base_orig :base_math
		2750	grepstart grepwhile mapstart mapwhile
		2751	sort time
		2752	));
1774		2753
1775	# here we export the classes and methods available to script code	2754	# here we export the classes and methods available to script code
1776		2755
1777	=pod	2756	=pod
1778		2757
1779	The following fucntions and emthods are available within a safe environment:	2758	The following functions and methods are available within a safe environment:
1780		2759
1781	cf::object contr pay_amount pay_player map	2760	cf::object
		2761	contr pay_amount pay_player map x y force_find force_add
		2762	insert remove name archname title slaying race decrease_ob_nr
		2763
1782	cf::object::player player	2764	cf::object::player
1783	cf::player peaceful	2765	player
1784	cf::map trigger	2766
		2767	cf::player
		2768	peaceful
		2769
		2770	cf::map
		2771	trigger
1785		2772
1786	=cut	2773	=cut
1787		2774
1788	for (	2775	for (
1789	["cf::object" => qw(contr pay_amount pay_player map)],	2776	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2777	insert remove inv name archname title slaying race
		2778	decrease_ob_nr)],
1790	["cf::object::player" => qw(player)],	2779	["cf::object::player" => qw(player)],
1791	["cf::player" => qw(peaceful)],	2780	["cf::player" => qw(peaceful)],
1792	["cf::map" => qw(trigger)],	2781	["cf::map" => qw(trigger)],
1793	) {	2782	) {
1794	no strict 'refs';	2783	no strict 'refs';
…		…
1865	=back	2854	=back
1866		2855
1867	=cut	2856	=cut
1868		2857
1869	#############################################################################	2858	#############################################################################
		2859	# the server's init and main functions
1870		2860
1871	=head2 EXTENSION DATABASE SUPPORT	2861	sub load_facedata($) {
		2862	my ($path) = @_;
1872		2863
1873	Crossfire maintains a very simple database for extension use. It can	2864	# HACK to clear player env face cache, we need some signal framework
1874	currently store anything that can be serialised using Storable, which	2865	# for this (global event?)
1875	excludes objects.	2866	%ext::player_env::MUSIC_FACE_CACHE = ();
1876		2867
1877	The parameter C<$family> should best start with the name of the extension	2868	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1878	using it, it should be unique.
1879		2869
1880	=over 4	2870	warn "loading facedata from $path\n";
1881		2871
1882	=item $hashref = cf::db_get $family	2872	my $facedata;
		2873	0 < aio_load $path, $facedata
		2874	or die "$path: $!";
1883		2875
1884	Return a hashref for use by the extension C<$family>, which can be	2876	$facedata = Coro::Storable::thaw $facedata;
1885	modified. After modifications, you have to call C<cf::db_dirty> or
1886	C<cf::db_sync>.
1887		2877
1888	=item $value = cf::db_get $family => $key	2878	$facedata->{version} == 2
		2879	or cf::cleanup "$path: version mismatch, cannot proceed.";
1889		2880
1890	Returns a single value from the database	2881	# patch in the exptable
1891		2882	$facedata->{resource}{"res/exp_table"} = {
1892	=item cf::db_put $family => $hashref	2883	type => FT_RSRC,
1893		2884	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1894	Stores the given family hashref into the database. Updates are delayed, if
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1896
1897	=item cf::db_put $family => $key => $value
1898
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909
1910	=cut
1911
1912	our $DB;
1913
1914	{
1915	my $path = cf::localdir . "/database.pst";
1916
1917	sub db_load() {
1918	$DB = stat $path ? Storable::retrieve $path : { };
1919	}
1920
1921	my $pid;
1922
1923	sub db_save() {
1924	waitpid $pid, 0 if $pid;
1925	if (0 == ($pid = fork)) {
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});	2885	};
		2886	cf::cede_to_tick;
1943		2887
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}	2888	{
		2889	my $faces = $facedata->{faceinfo};
1948		2890
1949	sub db_get($;$) {	2891	while (my ($face, $info) = each %$faces) {
1950	@_ >= 2	2892	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1951	? $DB->{$_[0]}{$_[1]}	2893	cf::face::set_visibility $idx, $info->{visibility};
1952	: ($DB->{$_[0]} ||= { })	2894	cf::face::set_magicmap $idx, $info->{magicmap};
1953	}	2895	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2896	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1954		2897
1955	sub db_put($$;$) {	2898	cf::cede_to_tick;
1956	if (@_ >= 3) {
1957	$DB->{$_[0]}{$_[1]} = $_[2];
1958	} else {
1959	$DB->{$_[0]} = $_[1];
1960	}
1961	db_dirty;
1962	}
1963
1964	cf::global->attach (
1965	prio => 10000,
1966	on_cleanup => sub {
1967	db_sync;
1968	},	2899	}
1969	);
1970	}
1971		2900
1972	#############################################################################	2901	while (my ($face, $info) = each %$faces) {
1973	# the server's main()	2902	next unless $info->{smooth};
		2903	my $idx = cf::face::find $face
		2904	or next;
		2905	if (my $smooth = cf::face::find $info->{smooth}) {
		2906	cf::face::set_smooth $idx, $smooth;
		2907	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2908	} else {
		2909	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2910	}
1974		2911
1975	sub cfg_load {	2912	cf::cede_to_tick;
		2913	}
		2914	}
		2915
		2916	{
		2917	my $anims = $facedata->{animinfo};
		2918
		2919	while (my ($anim, $info) = each %$anims) {
		2920	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2921	cf::cede_to_tick;
		2922	}
		2923
		2924	cf::anim::invalidate_all; # d'oh
		2925	}
		2926
		2927	{
		2928	# TODO: for gcfclient pleasure, we should give resources
		2929	# that gcfclient doesn't grok a >10000 face index.
		2930	my $res = $facedata->{resource};
		2931
		2932	my $soundconf = delete $res->{"res/sound.conf"};
		2933
		2934	while (my ($name, $info) = each %$res) {
		2935	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2936	my $data;
		2937
		2938	if ($info->{type} & 1) {
		2939	# prepend meta info
		2940
		2941	my $meta = $enc->encode ({
		2942	name => $name,
		2943	%{ $info->{meta} || {} },
		2944	});
		2945
		2946	$data = pack "(w/a*)*", $meta, $info->{data};
		2947	} else {
		2948	$data = $info->{data};
		2949	}
		2950
		2951	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2952	cf::face::set_type $idx, $info->{type};
		2953
		2954	cf::cede_to_tick;
		2955	}
		2956
		2957	if ($soundconf) {
		2958	$soundconf = $enc->decode (delete $soundconf->{data});
		2959
		2960	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2961	my $sound = $soundconf->{compat}[$_]
		2962	or next;
		2963
		2964	my $face = cf::face::find "sound/$sound->[1]";
		2965	cf::sound::set $sound->[0] => $face;
		2966	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2967	}
		2968
		2969	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2970	my $face = cf::face::find "sound/$v";
		2971	cf::sound::set $k => $face;
		2972	}
		2973	}
		2974	}
		2975
		2976	1
		2977	}
		2978
		2979	register_exticmd fx_want => sub {
		2980	my ($ns, $want) = @_;
		2981
		2982	while (my ($k, $v) = each %$want) {
		2983	$ns->fx_want ($k, $v);
		2984	}
		2985	};
		2986
		2987	sub reload_regions {
		2988	# HACK to clear player env face cache, we need some signal framework
		2989	# for this (global event?)
		2990	%ext::player_env::MUSIC_FACE_CACHE = ();
		2991
		2992	load_resource_file "$MAPDIR/regions"
		2993	or die "unable to load regions file\n";
		2994
		2995	for (cf::region::list) {
		2996	$_->{match} = qr/$_->{match}/
		2997	if exists $_->{match};
		2998	}
		2999	}
		3000
		3001	sub reload_facedata {
		3002	load_facedata "$DATADIR/facedata"
		3003	or die "unable to load facedata\n";
		3004	}
		3005
		3006	sub reload_archetypes {
		3007	load_resource_file "$DATADIR/archetypes"
		3008	or die "unable to load archetypes\n";
		3009	#d# NEED to laod twice to resolve forward references
		3010	# this really needs to be done in an extra post-pass
		3011	# (which needs to be synchronous, so solve it differently)
		3012	load_resource_file "$DATADIR/archetypes"
		3013	or die "unable to load archetypes\n";
		3014	}
		3015
		3016	sub reload_treasures {
		3017	load_resource_file "$DATADIR/treasures"
		3018	or die "unable to load treasurelists\n";
		3019	}
		3020
		3021	sub reload_resources {
		3022	warn "reloading resource files...\n";
		3023
		3024	reload_regions;
		3025	reload_facedata;
		3026	#reload_archetypes;#d#
		3027	reload_archetypes;
		3028	reload_treasures;
		3029
		3030	warn "finished reloading resource files\n";
		3031	}
		3032
		3033	sub init {
		3034	reload_resources;
		3035	}
		3036
		3037	sub reload_config {
1976	open my $fh, "<:utf8", cf::confdir . "/config"	3038	open my $fh, "<:utf8", "$CONFDIR/config"
1977	or return;	3039	or return;
1978		3040
1979	local $/;	3041	local $/;
1980	*CFG = YAML::Syck::Load <$fh>;	3042	*CFG = YAML::Syck::Load <$fh>;
		3043
		3044	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3045
		3046	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3047	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3048
		3049	if (exists $CFG{mlockall}) {
		3050	eval {
		3051	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3052	and die "WARNING: m(un)lockall failed: $!\n";
		3053	};
		3054	warn $@ if $@;
		3055	}
1981	}	3056	}
1982		3057
1983	sub main {	3058	sub main {
1984	# we must not ever block the main coroutine	3059	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	3060	local $Coro::idle = sub {
1986	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3061	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1987	(Coro::unblock_sub {	3062	(async {
1988	Event::one_event;	3063	Event::one_event;
1989	})->();	3064	})->prio (Coro::PRIO_MAX);
1990	};	3065	};
1991		3066
1992	cfg_load;	3067	reload_config;
1993	db_load;	3068	db_init;
1994	load_extensions;	3069	load_extensions;
		3070
		3071	$TICK_WATCHER->start;
1995	Event::loop;	3072	Event::loop;
1996	}	3073	}
1997		3074
1998	#############################################################################	3075	#############################################################################
1999	# initialisation	3076	# initialisation and cleanup
2000		3077
		3078	# install some emergency cleanup handlers
		3079	BEGIN {
		3080	for my $signal (qw(INT HUP TERM)) {
		3081	Event->signal (
		3082	reentrant => 0,
		3083	data => WF_AUTOCANCEL,
		3084	signal => $signal,
		3085	prio => 0,
		3086	cb => sub {
		3087	cf::cleanup "SIG$signal";
		3088	},
		3089	);
		3090	}
		3091	}
		3092
		3093	sub write_runtime {
		3094	my $runtime = "$LOCALDIR/runtime";
		3095
		3096	# first touch the runtime file to show we are still running:
		3097	# the fsync below can take a very very long time.
		3098
		3099	IO::AIO::aio_utime $runtime, undef, undef;
		3100
		3101	my $guard = cf::lock_acquire "write_runtime";
		3102
		3103	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3104	or return;
		3105
		3106	my $value = $cf::RUNTIME + 90 + 10;
		3107	# 10 is the runtime save interval, for a monotonic clock
		3108	# 60 allows for the watchdog to kill the server.
		3109
		3110	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3111	and return;
		3112
		3113	# always fsync - this file is important
		3114	aio_fsync $fh
		3115	and return;
		3116
		3117	# touch it again to show we are up-to-date
		3118	aio_utime $fh, undef, undef;
		3119
		3120	close $fh
		3121	or return;
		3122
		3123	aio_rename "$runtime~", $runtime
		3124	and return;
		3125
		3126	warn "runtime file written.\n";
		3127
		3128	1
		3129	}
		3130
		3131	sub emergency_save() {
		3132	my $freeze_guard = cf::freeze_mainloop;
		3133
		3134	warn "enter emergency perl save\n";
		3135
		3136	cf::sync_job {
		3137	# use a peculiar iteration method to avoid tripping on perl
		3138	# refcount bugs in for. also avoids problems with players
		3139	# and maps saved/destroyed asynchronously.
		3140	warn "begin emergency player save\n";
		3141	for my $login (keys %cf::PLAYER) {
		3142	my $pl = $cf::PLAYER{$login} or next;
		3143	$pl->valid or next;
		3144	$pl->save;
		3145	}
		3146	warn "end emergency player save\n";
		3147
		3148	warn "begin emergency map save\n";
		3149	for my $path (keys %cf::MAP) {
		3150	my $map = $cf::MAP{$path} or next;
		3151	$map->valid or next;
		3152	$map->save;
		3153	}
		3154	warn "end emergency map save\n";
		3155
		3156	warn "begin emergency database checkpoint\n";
		3157	BDB::db_env_txn_checkpoint $DB_ENV;
		3158	warn "end emergency database checkpoint\n";
		3159	};
		3160
		3161	warn "leave emergency perl save\n";
		3162	}
		3163
		3164	sub post_cleanup {
		3165	my ($make_core) = @_;
		3166
		3167	warn Carp::longmess "post_cleanup backtrace"
		3168	if $make_core;
		3169	}
		3170
2001	sub reload() {	3171	sub do_reload_perl() {
2002	# can/must only be called in main	3172	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	3173	if ($Coro::current != $Coro::main) {
2004	warn "can only reload from main coroutine\n";	3174	warn "can only reload from main coroutine";
2005	return;	3175	return;
2006	}	3176	}
2007		3177
2008	warn "reloading...";	3178	warn "reloading...";
2009		3179
2010	local $FREEZE = 1;	3180	warn "entering sync_job";
		3181
		3182	cf::sync_job {
		3183	cf::write_runtime; # external watchdog should not bark
2011	cf::emergency_save;	3184	cf::emergency_save;
		3185	cf::write_runtime; # external watchdog should not bark
2012		3186
2013	eval {	3187	warn "syncing database to disk";
		3188	BDB::db_env_txn_checkpoint $DB_ENV;
		3189
2014	# if anything goes wrong in here, we should simply crash as we already saved	3190	# if anything goes wrong in here, we should simply crash as we already saved
2015		3191
2016	# cancel all watchers	3192	warn "cancelling all WF_AUTOCANCEL watchers";
2017	for (Event::all_watchers) {	3193	for (Event::all_watchers) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;	3194	$_->cancel if $_->data & WF_AUTOCANCEL;
2019	}	3195	}
2020		3196
		3197	warn "flushing outstanding aio requests";
		3198	for (;;) {
		3199	BDB::flush;
		3200	IO::AIO::flush;
		3201	Coro::cede;
		3202	last unless IO::AIO::nreqs || BDB::nreqs;
		3203	warn "iterate...";
		3204	}
		3205
		3206	++$RELOAD;
		3207
2021	# cancel all extension coros	3208	warn "cancelling all extension coros";
2022	$_->cancel for values %EXT_CORO;	3209	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();	3210	%EXT_CORO = ();
2024		3211
2025	# unload all extensions	3212	warn "removing commands";
2026	for (@exts) {	3213	%COMMAND = ();
		3214
		3215	warn "removing ext/exti commands";
		3216	%EXTCMD = ();
		3217	%EXTICMD = ();
		3218
		3219	warn "unloading/nuking all extensions";
		3220	for my $pkg (@EXTS) {
2027	warn "unloading <$_>";	3221	warn "... unloading $pkg";
2028	unload_extension $_;	3222
		3223	if (my $cb = $pkg->can ("unload")) {
		3224	eval {
		3225	$cb->($pkg);
		3226	1
		3227	} or warn "$pkg unloaded, but with errors: $@";
2029	}	3228	}
2030		3229
		3230	warn "... nuking $pkg";
		3231	Symbol::delete_package $pkg;
		3232	}
		3233
2031	# unload all modules loaded from $LIBDIR	3234	warn "unloading all perl modules loaded from $LIBDIR";
2032	while (my ($k, $v) = each %INC) {	3235	while (my ($k, $v) = each %INC) {
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3236	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2034		3237
2035	warn "removing <$k>";	3238	warn "... unloading $k";
2036	delete $INC{$k};	3239	delete $INC{$k};
2037		3240
2038	$k =~ s/\.pm$//;	3241	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;	3242	$k =~ s/\//::/g;
2040		3243
…		…
2043	}	3246	}
2044		3247
2045	Symbol::delete_package $k;	3248	Symbol::delete_package $k;
2046	}	3249	}
2047		3250
2048	# sync database to disk
2049	cf::db_sync;
2050	IO::AIO::flush;
2051
2052	# get rid of safe::, as good as possible	3251	warn "getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	3252	Symbol::delete_package "safe::$_"
2054	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3253	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2055		3254
2056	# remove register_script_function callbacks
2057	# TODO
2058
2059	# unload cf.pm "a bit"	3255	warn "unloading cf.pm \"a bit\"";
2060	delete $INC{"cf.pm"};	3256	delete $INC{"cf.pm"};
		3257	delete $INC{"cf/pod.pm"};
2061		3258
2062	# don't, removes xs symbols, too,	3259	# don't, removes xs symbols, too,
2063	# and global variables created in xs	3260	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	3261	#Symbol::delete_package __PACKAGE__;
2065		3262
2066	# reload cf.pm	3263	warn "unload completed, starting to reload now";
		3264
2067	warn "reloading cf.pm";	3265	warn "reloading cf.pm";
2068	require cf;	3266	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3267	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2070		3268
2071	# load config and database again	3269	warn "loading config and database again";
2072	cf::cfg_load;	3270	cf::reload_config;
2073	cf::db_load;
2074		3271
2075	# load extensions
2076	warn "load extensions";	3272	warn "loading extensions";
2077	cf::load_extensions;	3273	cf::load_extensions;
2078		3274
2079	# reattach attachments to objects	3275	warn "reattaching attachments to objects/players";
2080	warn "reattach";	3276	_global_reattach; # objects, sockets
2081	_global_reattach;	3277	warn "reattaching attachments to maps";
2082	};	3278	reattach $_ for values %MAP;
		3279	warn "reattaching attachments to players";
		3280	reattach $_ for values %PLAYER;
2083		3281
2084	if ($@) {	3282	warn "leaving sync_job";
		3283
		3284	1
		3285	} or do {
2085	warn $@;	3286	warn $@;
2086	warn "error while reloading, exiting.";	3287	warn "error while reloading, exiting.";
2087	exit 1;	3288	exit 1;
2088	}	3289	};
2089		3290
2090	warn "reloaded successfully";	3291	warn "reloaded";
2091	};	3292	};
2092		3293
2093	#############################################################################	3294	our $RELOAD_WATCHER; # used only during reload
2094		3295
2095	unless ($LINK_MAP) {	3296	sub reload_perl() {
2096	$LINK_MAP = cf::map::new;	3297	# doing reload synchronously and two reloads happen back-to-back,
		3298	# coro crashes during coro_state_free->destroy here.
2097		3299
2098	$LINK_MAP->width (41);	3300	$RELOAD_WATCHER ||= Event->timer (
2099	$LINK_MAP->height (41);	3301	reentrant => 0,
2100	$LINK_MAP->alloc;
2101	$LINK_MAP->path ("{link}");
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,	3302	after => 0,
		3303	data => WF_AUTOCANCEL,
2108	cb => sub {	3304	cb => sub {
2109	$_[0]->w->cancel;	3305	do_reload_perl;
2110		3306	undef $RELOAD_WATCHER;
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});	3307	},
2129		3308	);
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	3309	}
2135
2136	register "<global>", __PACKAGE__;
2137		3310
2138	register_command "reload" => sub {	3311	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	3312	my ($who, $arg) = @_;
2140		3313
2141	if ($who->flag (FLAG_WIZ)) {	3314	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	3315	$who->message ("reloading server.");
		3316	async { reload_perl };
2145	}	3317	}
2146	};	3318	};
2147		3319
2148	unshift @INC, $LIBDIR;	3320	unshift @INC, $LIBDIR;
2149		3321
		3322	my $bug_warning = 0;
		3323
		3324	our @WAIT_FOR_TICK;
		3325	our @WAIT_FOR_TICK_BEGIN;
		3326
		3327	sub wait_for_tick {
		3328	return unless $TICK_WATCHER->is_active;
		3329	return if $Coro::current == $Coro::main;
		3330
		3331	my $signal = new Coro::Signal;
		3332	push @WAIT_FOR_TICK, $signal;
		3333	$signal->wait;
		3334	}
		3335
		3336	sub wait_for_tick_begin {
		3337	return unless $TICK_WATCHER->is_active;
		3338	return if $Coro::current == $Coro::main;
		3339
		3340	my $signal = new Coro::Signal;
		3341	push @WAIT_FOR_TICK_BEGIN, $signal;
		3342	$signal->wait;
		3343	}
		3344
		3345	my $min = 1e6;#d#
		3346	my $avg = 10;
2150	$TICK_WATCHER = Event->timer (	3347	$TICK_WATCHER = Event->timer (
2151	reentrant => 0,	3348	reentrant => 0,
		3349	parked => 1,
2152	prio => 0,	3350	prio => 0,
2153	at => $NEXT_TICK || $TICK,	3351	at => $NEXT_TICK || $TICK,
2154	data => WF_AUTOCANCEL,	3352	data => WF_AUTOCANCEL,
2155	cb => sub {	3353	cb => sub {
2156	unless ($FREEZE) {	3354	if ($Coro::current != $Coro::main) {
		3355	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3356	unless ++$bug_warning > 10;
		3357	return;
		3358	}
		3359
		3360	$NOW = $tick_start = Event::time;
		3361
2157	cf::server_tick; # one server iteration	3362	cf::server_tick; # one server iteration
2158	$RUNTIME += $TICK;	3363
		3364	0 && sync_job {#d#
		3365	for(1..10) {
		3366	my $t = Event::time;
		3367	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3368	or die;
		3369
		3370	$map->width (50);
		3371	$map->height (50);
		3372	$map->alloc;
		3373	$map->_load_objects ("/tmp/x.map", 1);
		3374	my $t = Event::time - $t;
		3375
		3376	#next unless $t < 0.0013;#d#
		3377	if ($t < $min) {
		3378	$min = $t;
		3379	}
		3380	$avg = $avg * 0.99 + $t * 0.01;
		3381	}
		3382	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3383	exit 0;
		3384	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2159	}	3385	};
2160		3386
		3387	$RUNTIME += $TICK;
2161	$NEXT_TICK += $TICK;	3388	$NEXT_TICK += $TICK;
2162		3389
		3390	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3391	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3392	Coro::async_pool {
		3393	write_runtime
		3394	or warn "ERROR: unable to write runtime file: $!";
		3395	};
		3396	}
		3397
		3398	# my $AFTER = Event::time;
		3399	# warn $AFTER - $NOW;#d#
		3400
		3401	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3402	$sig->send;
		3403	}
		3404	while (my $sig = shift @WAIT_FOR_TICK) {
		3405	$sig->send;
		3406	}
		3407
		3408	$NOW = Event::time;
		3409
2163	# if we are delayed by four ticks or more, skip them all	3410	# if we are delayed by four ticks or more, skip them all
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3411	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2165		3412
2166	$TICK_WATCHER->at ($NEXT_TICK);	3413	$TICK_WATCHER->at ($NEXT_TICK);
2167	$TICK_WATCHER->start;	3414	$TICK_WATCHER->start;
		3415
		3416	$LOAD = ($NOW - $tick_start) / $TICK;
		3417	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3418
		3419	_post_tick;
		3420
		3421
2168	},	3422	},
2169	);	3423	);
2170		3424
		3425	{
2171	IO::AIO::max_poll_time $TICK * 0.2;	3426	BDB::max_poll_time $TICK * 0.1;
2172		3427	$BDB_POLL_WATCHER = Event->io (
2173	Event->io (	3428	reentrant => 0,
2174	fd => IO::AIO::poll_fileno,	3429	fd => BDB::poll_fileno,
2175	poll => 'r',	3430	poll => 'r',
2176	prio => 5,	3431	prio => 0,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,	3432	data => WF_AUTOCANCEL,
2183	after => 0,	3433	cb => \&BDB::poll_cb,
2184	interval => 10,	3434	);
2185	cb => sub {	3435	BDB::min_parallel 8;
2186	(Coro::unblock_sub {	3436
2187	write_runtime	3437	BDB::set_sync_prepare {
2188	or warn "ERROR: unable to write runtime file: $!";	3438	my $status;
		3439	my $current = $Coro::current;
		3440	(
		3441	sub {
		3442	$status = $!;
		3443	$current->ready; undef $current;
		3444	},
		3445	sub {
		3446	Coro::schedule while defined $current;
		3447	$! = $status;
		3448	},
		3449	)
		3450	};
		3451
		3452	unless ($DB_ENV) {
		3453	$DB_ENV = BDB::db_env_create;
		3454
		3455	cf::sync_job {
		3456	eval {
		3457	BDB::db_env_open
		3458	$DB_ENV,
		3459	$BDBDIR,
		3460	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3461	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3462	0666;
		3463
		3464	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3465
		3466	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3467	$DB_ENV->set_lk_detect;
		3468	};
		3469
		3470	cf::cleanup "db_env_open(db): $@" if $@;
2189	})->();	3471	};
2190	},	3472	}
2191	);	3473	}
		3474
		3475	{
		3476	IO::AIO::min_parallel 8;
		3477
		3478	undef $Coro::AIO::WATCHER;
		3479	IO::AIO::max_poll_time $TICK * 0.1;
		3480	$AIO_POLL_WATCHER = Event->io (
		3481	reentrant => 0,
		3482	data => WF_AUTOCANCEL,
		3483	fd => IO::AIO::poll_fileno,
		3484	poll => 'r',
		3485	prio => 6,
		3486	cb => \&IO::AIO::poll_cb,
		3487	);
		3488	}
		3489
		3490	my $_log_backtrace;
		3491
		3492	sub _log_backtrace {
		3493	my ($msg, @addr) = @_;
		3494
		3495	$msg =~ s/\n//;
		3496
		3497	# limit the # of concurrent backtraces
		3498	if ($_log_backtrace < 2) {
		3499	++$_log_backtrace;
		3500	async {
		3501	my @bt = fork_call {
		3502	@addr = map { sprintf "%x", $_ } @addr;
		3503	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3504	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3505	or die "addr2line: $!";
		3506
		3507	my @funcs;
		3508	my @res = <$fh>;
		3509	chomp for @res;
		3510	while (@res) {
		3511	my ($func, $line) = splice @res, 0, 2, ();
		3512	push @funcs, "[$func] $line";
		3513	}
		3514
		3515	@funcs
		3516	};
		3517
		3518	LOG llevInfo, "[ABT] $msg\n";
		3519	LOG llevInfo, "[ABT] $_\n" for @bt;
		3520	--$_log_backtrace;
		3521	};
		3522	} else {
		3523	LOG llevInfo, "[ABT] $msg\n";
		3524	LOG llevInfo, "[ABT] [suppressed]\n";
		3525	}
		3526	}
		3527
		3528	# load additional modules
		3529	use cf::pod;
		3530
		3531	END { cf::emergency_save }
2192		3532
2193	1	3533	1
2194		3534

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