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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.355 by root, Sun Sep 2 12:45:44 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 $RANDOM_MAPS = cf::localdir . "/random";	95
55	our %EXT_CORO;	96	# used to convert map paths into valid unix filenames by replacing / by ∕
		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 $tick_start; # for load detecting purposes
56		102
57	binmode STDOUT;	103	binmode STDOUT;
58	binmode STDERR;	104	binmode STDERR;
59		105
60	# read virtual server time, if available	106	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
65	}	111	}
66		112
67	mkdir cf::localdir;	113	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		115
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
76		119
77	#############################################################################	120	#############################################################################
78		121
79	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
80		123
…		…
87	=item $cf::RUNTIME	130	=item $cf::RUNTIME
88		131
89	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
90	every server tick.	133	every server tick.
91		134
92	=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
93		138
94	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		143
97	=item $cf::NOW	144	=item $cf::NOW
98		145
99	The time of the last (current) server tick.	146	The time of the last (current) server tick.
100		147
101	=item $cf::TICK	148	=item $cf::TICK
102		149
103	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.
104		161
105	=item %cf::CFG	162	=item %cf::CFG
106		163
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		178
110	=back	179	=back
111		180
112	=cut	181	=cut
113		182
114	BEGIN {	183	BEGIN {
115	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	185	my $msg = join "", @_;
117	utf8::encode $msg;
118		186
119	$msg .= "\n"	187	$msg .= "\n"
120	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
121		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
123	};	194	};
124	}	195	}
125		196
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		204
133	# 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
134	# within the Safe compartment.	206	# within the Safe compartment.
135	for my $pkg (qw(	207	for my $pkg (qw(
136	cf::global cf::attachable	208	cf::global cf::attachable
…		…
145		217
146	$Event::DIED = sub {	218	$Event::DIED = sub {
147	warn "error in event callback: @_";	219	warn "error in event callback: @_";
148	};	220	};
149		221
150	my %ext_pkg;	222	#############################################################################
151	my @exts;
152	my @hook;
153		223
154	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
155		225
156	=over 4	226	=over 4
157		227
158	=cut	228	=item dumpval $ref
159		229
160	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	}
161		250
162	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
163		252
164	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
165		254
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
174		256
175	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
176		258
177	=cut	259	=cut
178		260
179	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		262
184	=item my $guard = cf::guard { BLOCK }	263	sub to_json ($) { $json_coder->encode ($_[0]) }
185		264	sub from_json ($) { $json_coder->decode ($_[0]) }
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205		265
206	=item cf::lock_wait $string	266	=item cf::lock_wait $string
207		267
208	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
209		269
210	=item my $lock = cf::lock_acquire $string	270	=item my $lock = cf::lock_acquire $string
211		271
212	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
213	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,
214	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
215	returned.	275	returned.
216		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
217	Lock names should begin with a unique identifier (for example, cf::map::find	280	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load 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.
219		286
220	=cut	287	=cut
221		288
222	our %LOCK;	289	our %LOCK;
223		290
…		…
237	# wait, to be sure we are not locked	304	# wait, to be sure we are not locked
238	lock_wait $key;	305	lock_wait $key;
239		306
240	$LOCK{$key} = [];	307	$LOCK{$key} = [];
241		308
242	cf::guard {	309	Coro::guard {
243	# wake up all waiters, to be on the safe side	310	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	311	$_->ready for @{ delete $LOCK{$key} };
245	}	312	}
246	}	313	}
247		314
248	=item cf::async { BLOCK }	315	sub lock_active($) {
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;	316	my ($key) = @_;
257		317
258	Coro::async {	318	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	319	}
263		320
264	sub freeze_mainloop {	321	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	322	return unless $TICK_WATCHER->is_active;
266		323
267	my $guard = guard { $TICK_WATCHER->start };	324	my $guard = Coro::guard {
		325	$TICK_WATCHER->start;
		326	};
268	$TICK_WATCHER->stop;	327	$TICK_WATCHER->stop;
269	$guard	328	$guard
270	}	329	}
271		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
272	=item cf::sync_job { BLOCK }	397	=item cf::sync_job { BLOCK }
273		398
274	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)
275	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
276	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.
277		403
278	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
279	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
280	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
281	fast or be very important.	407	fast or be very important.
…		…
284		410
285	sub sync_job(&) {	411	sub sync_job(&) {
286	my ($job) = @_;	412	my ($job) = @_;
287		413
288	if ($Coro::current == $Coro::main) {	414	if ($Coro::current == $Coro::main) {
		415	my $time = Event::time;
		416
289	# this is the main coro, too bad, we have to block	417	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	418	# till the operation succeeds, freezing the server :/
291		419
292	# TODO: use suspend/resume instead	420	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	421	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	422	my $freeze_guard = freeze_mainloop;
295		423
296	my $busy = 1;	424	my $busy = 1;
297	my @res;	425	my @res;
298		426
299	(Coro::async {	427	(async {
300	@res = eval { $job->() };	428	@res = eval { $job->() };
301	warn $@ if $@;	429	warn $@ if $@;
302	undef $busy;	430	undef $busy;
303	})->prio (Coro::PRIO_MAX);	431	})->prio (Coro::PRIO_MAX);
304		432
305	while ($busy) {	433	while ($busy) {
306	Coro::cede_notself;	434	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	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
309		443
310	wantarray ? @res : $res[0]	444	wantarray ? @res : $res[0]
311	} else {	445	} else {
312	# we are in another coroutine, how wonderful, everything just works	446	# we are in another coroutine, how wonderful, everything just works
313		447
314	$job->()	448	$job->()
315	}	449	}
316	}	450	}
317		451
318	=item $coro = cf::coro { BLOCK }	452	=item $coro = cf::async_ext { BLOCK }
319		453
320	Creates and returns a new coro. This coro is automcatially being canceled	454	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	455	extension calling this is being unloaded.
322		456
323	=cut	457	=cut
324		458
325	sub coro(&) {	459	sub async_ext(&) {
326	my $cb = shift;	460	my $cb = shift;
327		461
328	my $coro = &cf::async ($cb);	462	my $coro = &Coro::async ($cb);
329		463
330	$coro->on_destroy (sub {	464	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	465	delete $EXT_CORO{$coro+0};
332	});	466	});
333	$EXT_CORO{$coro+0} = $coro;	467	$EXT_CORO{$coro+0} = $coro;
334		468
335	$coro	469	$coro
336	}	470	}
337		471
338	sub write_runtime {	472	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		473
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	474	Executes the given code block with the given arguments in a seperate
342	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.
343		478
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	479	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		480
348	aio_fsync $fh	481	sub fork_call(&@) {
349	and return;	482	my ($cb, @args) = @_;
350		483
351	close $fh	484	# we seemingly have to make a local copy of the whole thing,
352	or return;	485	# otherwise perl prematurely frees the stuff :/
		486	# TODO: investigate and fix (likely this will be rather laborious)
353		487
354	aio_rename "$runtime~", $runtime	488	my @res = Coro::Util::fork_eval {
355	and return;	489	reset_signals;
		490	&$cb
		491	}, @args;
356		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	};
357	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 });
358	}	621	}
359		622
360	=back	623	=back
361		624
362	=cut	625	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		626
484	#############################################################################	627	#############################################################################
485		628
486	=head2 ATTACHABLE OBJECTS	629	=head2 ATTACHABLE OBJECTS
487		630
…		…
489	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")
490	to it. All such attachable objects support the following methods.	633	to it. All such attachable objects support the following methods.
491		634
492	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>
493	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
494	crossfire+).	637	Crossfire TRT).
495		638
496	=over 4	639	=over 4
497		640
498	=item $attachable->attach ($attachment, key => $value...)	641	=item $attachable->attach ($attachment, key => $value...)
499		642
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	756	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	757	our @CB_MAP = ();
615		758
616	my %attachment;	759	my %attachment;
617		760
		761	sub cf::attachable::thawer_merge {
		762	# simply override everything except _meta
		763	local $_[0]{_meta};
		764	%{$_[0]} = %{$_[1]};
		765	}
		766
618	sub _attach_cb($$$$) {	767	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	768	my ($registry, $event, $prio, $cb) = @_;
620		769
621	use sort 'stable';	770	use sort 'stable';
622		771
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	805	$registry = $CB_TYPE[$object_type] ||= [];
657		806
658	} elsif ($type eq "subtype") {	807	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	808	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	809	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	810	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		811
663	} elsif ($type eq "package") {	812	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	813	my $pkg = shift @arg;
665		814
666	while (my ($name, $id) = each %cb_id) {	815	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	844	_attach $registry, $klass, @attach;
696	}	845	}
697		846
698	$obj->{$name} = \%arg;	847	$obj->{$name} = \%arg;
699	} else {	848	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	849	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	850	}
702		851
703	$obj->{_attachment}{$name} = undef;	852	$obj->{_attachment}{$name} = undef;
704	}	853	}
705		854
…		…
707	if (ref $_[0]) {	856	if (ref $_[0]) {
708	_object_attach @_;	857	_object_attach @_;
709	} else {	858	} else {
710	_attach shift->_attach_registry, @_;	859	_attach shift->_attach_registry, @_;
711	}	860	}
		861	_recalc_want;
712	};	862	};
713		863
714	# all those should be optimised	864	# all those should be optimised
715	sub cf::attachable::detach {	865	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	866	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	869	delete $obj->{_attachment}{$name};
720	reattach ($obj);	870	reattach ($obj);
721	} else {	871	} else {
722	Carp::croak "cannot, currently, detach class attachments";	872	Carp::croak "cannot, currently, detach class attachments";
723	}	873	}
		874	_recalc_want;
724	};	875	};
725		876
726	sub cf::attachable::attached {	877	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	878	my ($obj, $name) = @_;
728		879
…		…
743	";	894	";
744	die if $@;	895	die if $@;
745	}	896	}
746		897
747	our $override;	898	our $override;
748	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?
749		900
750	sub override {	901	sub override {
751	$override = 1;	902	$override = 1;
752	@invoke_results = ();	903	@INVOKE_RESULTS = (@_);
753	}	904	}
754		905
755	sub do_invoke {	906	sub do_invoke {
756	my $event = shift;	907	my $event = shift;
757	my $callbacks = shift;	908	my $callbacks = shift;
758		909
759	@invoke_results = ();	910	@INVOKE_RESULTS = ();
760		911
761	local $override;	912	local $override;
762		913
763	for (@$callbacks) {	914	for (@$callbacks) {
764	eval { &{$_->[1]} };	915	eval { &{$_->[1]} };
…		…
781		932
782	Generate an object-specific event with the given arguments.	933	Generate an object-specific event with the given arguments.
783		934
784	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
785	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
786	results (if you must, access C<@cf::invoke_results> directly).	937	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		938
788	=back	939	=back
789		940
790	=cut	941	=cut
791		942
792	#############################################################################	943	#############################################################################
793	# 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	}
794		956
795	sub reattach {	957	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	958	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	959	my ($obj) = @_;
		960
		961	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		962
799	my $registry = $obj->registry;	963	my $registry = $obj->registry;
800		964
801	@$registry = ();	965	@$registry = ();
802		966
…		…
849	$filename, length $$rdata, scalar @$objs;	1013	$filename, length $$rdata, scalar @$objs;
850		1014
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1015	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1016	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1017	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	1018	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	1019	close $fh;
856		1020
857	if (@$objs) {	1021	if (@$objs) {
858	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) {
859	chmod SAVE_MODE, $fh;	1023	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1024	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	1025	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	1026	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	1027	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1028	aio_rename "$filename.pst~", "$filename.pst";
865	}	1029	}
866	} else {	1030	} else {
867	aio_unlink "$filename.pst";	1031	aio_unlink "$filename.pst";
…		…
899	or return;	1063	or return;
900	$av = eval { (Storable::thaw $av)->{objs} };	1064	$av = eval { (Storable::thaw $av)->{objs} };
901	}	1065	}
902		1066
903	warn sprintf "loading %s (%d)\n",	1067	warn sprintf "loading %s (%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1068	$filename, length $data, scalar @{$av || []};
905	return ($data, $av);	1069	return ($data, $av);
906	}	1070	}
		1071
		1072	=head2 COMMAND CALLBACKS
		1073
		1074	=over 4
		1075
		1076	=cut
907		1077
908	#############################################################################	1078	#############################################################################
909	# command handling &c	1079	# command handling &c
910		1080
911	=item cf::register_command $name => \&callback($ob,$args);	1081	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1094	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1095	}
926		1096
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1097	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1098
929	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.
930		1104
931	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
932	called.	1106	called.
933		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
934	=cut	1119	=cut
935		1120
936	sub register_extcmd {	1121	sub register_extcmd {
937	my ($name, $cb) = @_;	1122	my ($name, $cb) = @_;
938		1123
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1124	$EXTCMD{$name} = $cb;
		1125	}
		1126
		1127	sub register_exticmd {
		1128	my ($name, $cb) = @_;
		1129
		1130	$EXTICMD{$name} = $cb;
943	}	1131	}
944		1132
945	cf::player->attach (	1133	cf::player->attach (
946	on_command => sub {	1134	on_command => sub {
947	my ($pl, $name, $params) = @_;	1135	my ($pl, $name, $params) = @_;
…		…
956	cf::override;	1144	cf::override;
957	},	1145	},
958	on_extcmd => sub {	1146	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1147	my ($pl, $buf) = @_;
960		1148
961	my $msg = eval { from_json $buf };	1149	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1150
963	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
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1159	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1160	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1161	}
		1162
		1163	$pl->ext_reply ($reply, @reply)
		1164	if $reply;
		1165
969	} else {	1166	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1167	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1168	}
972		1169
973	cf::override;	1170	cf::override;
974	},	1171	},
975	);	1172	);
976		1173
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	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 $path = path $login;
		1419
		1420	# a .pst is a dead give-away for a valid player
		1421	unless (-e "$path.pst") {
		1422	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1423	aio_read $fh, 0, 512, my $buf, 0 or next;
		1424	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1425	}
		1426
		1427	utf8::decode $login;
		1428	push @logins, $login;
		1429	}
		1430
		1431	\@logins
		1432	}
		1433
		1434	=item $player->maps
		1435
		1436	Returns an arrayref of map paths that are private for this
		1437	player. May block.
		1438
		1439	=cut
		1440
		1441	sub maps($) {
		1442	my ($pl) = @_;
		1443
		1444	$pl = ref $pl ? $pl->ob->name : $pl;
		1445
		1446	my $files = aio_readdir playerdir $pl
		1447	or return;
		1448
		1449	my @paths;
		1450
		1451	for (@$files) {
		1452	utf8::decode $_;
		1453	next if /\.(?:pl|pst)$/;
		1454	next unless /^$PATH_SEP/o;
		1455
		1456	push @paths, cf::map::normalise "~$pl/$_";
		1457	}
		1458
		1459	\@paths
		1460	}
		1461
		1462	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1463
		1464	Expand crossfire pod fragments into protocol xml.
		1465
		1466	=cut
		1467
		1468	sub expand_cfpod {
		1469	((my $self), (local $_)) = @_;
		1470
		1471	# escape & and <
		1472	s/&/&amp;/g;
		1473	s/(?<![BIUGHT])</&lt;/g;
		1474
		1475	# this is buggy, it needs to properly take care of nested <'s
		1476
		1477	1 while
		1478	# replace B<>, I<>, U<> etc.
		1479	s/B<([^\>]*)>/<b>$1<\/b>/
		1480	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1481	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1482	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1483	# replace G<male|female> tags
		1484	|| s{G<([^>|]*)\|([^>]*)>}{
		1485	$self->gender ? $2 : $1
		1486	}ge
		1487	# replace H<hint text>
		1488	|| s{H<([^\>]*)>}
		1489	{
		1490	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1491	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1492	"")
		1493	[$self->{hintmode}]
		1494	}ge;
		1495
		1496	# create single paragraphs (very hackish)
		1497	s/(?<=\S)\n(?=\w)/ /g;
		1498
		1499	# compress some whitespace
		1500	s/\s+\n/\n/g; # ws line-ends
		1501	s/\n\n+/\n/g; # double lines
		1502	s/^\n+//; # beginning lines
		1503	s/\n+$//; # ending lines
		1504
		1505	$_
		1506	}
		1507
		1508	sub hintmode {
		1509	$_[0]{hintmode} = $_[1] if @_ > 1;
		1510	$_[0]{hintmode}
		1511	}
		1512
		1513	=item $player->ext_reply ($msgid, @msg)
		1514
		1515	Sends an ext reply to the player.
		1516
		1517	=cut
		1518
		1519	sub ext_reply($$@) {
		1520	my ($self, $id, @msg) = @_;
		1521
		1522	$self->ns->ext_reply ($id, @msg)
		1523	}
		1524
		1525	=item $player->ext_msg ($type, @msg)
		1526
		1527	Sends an ext event to the client.
		1528
		1529	=cut
		1530
		1531	sub ext_msg($$@) {
		1532	my ($self, $type, @msg) = @_;
		1533
		1534	$self->ns->ext_msg ($type, @msg);
		1535	}
		1536
		1537	=head3 cf::region
		1538
		1539	=over 4
		1540
		1541	=cut
		1542
		1543	package cf::region;
		1544
		1545	=item cf::region::find_by_path $path
		1546
		1547	Tries to decuce the likely region for a map knowing only its path.
		1548
		1549	=cut
		1550
		1551	sub find_by_path($) {
984	my ($path) = @_;	1552	my ($path) = @_;
985		1553
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1554	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1555
992	warn "loading '$path' into '$pkg'\n";	1556	for my $region (list) {
993		1557	if ($region->{match} && $path =~ $region->{match}) {
994	open my $fh, "<:utf8", $path	1558	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1559	if $region->specificity > $specificity;
996		1560	}
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	1561	}
1026		1562
1027	# remove commands	1563	$match
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}
1052
1053	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;
1056	eval {
1057	load_extension $ext;
1058	1
1059	} or warn "$ext not loaded: $@";
1060	}
1061	}
1062
1063	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100
1101	=head2 CORE EXTENSIONS
1102
1103	Functions and methods that extend core crossfire objects.
1104
1105	=head3 cf::player
1106
1107	=over 4
1108
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut
1114
1115	sub cf::player::exists($) {
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121
1122	Sends an ext reply to the player.
1123
1124	=cut
1125
1126	sub cf::player::ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;
1128
1129	$msg{msgid} = $id;
1130
1131	$self->send ("ext " . to_json \%msg);
1132	}	1564	}
1133		1565
1134	=back	1566	=back
1135
1136		1567
1137	=head3 cf::map	1568	=head3 cf::map
1138		1569
1139	=over 4	1570	=over 4
1140		1571
…		…
1143	package cf::map;	1574	package cf::map;
1144		1575
1145	use Fcntl;	1576	use Fcntl;
1146	use Coro::AIO;	1577	use Coro::AIO;
1147		1578
		1579	use overload
		1580	'""' => \&as_string,
		1581	fallback => 1;
		1582
1148	our $MAX_RESET = 3600;	1583	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1584	our $DEFAULT_RESET = 3000;
1150		1585
1151	sub generate_random_map {	1586	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1587	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1588	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1589	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1590	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1591	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1592	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1593	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1594	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1595	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1596	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1597	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1598	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1599	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1600	(cf::region::find $rmp->{region}), $rmp->{custom}
		1601	)
		1602	}
		1603
		1604	=item cf::map->register ($regex, $prio)
		1605
		1606	Register a handler for the map path matching the given regex at the
		1607	givne priority (higher is better, built-in handlers have priority 0, the
		1608	default).
		1609
		1610	=cut
		1611
		1612	sub register {
		1613	my (undef, $regex, $prio) = @_;
		1614	my $pkg = caller;
		1615
		1616	no strict;
		1617	push @{"$pkg\::ISA"}, __PACKAGE__;
		1618
		1619	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1620	}
		1621
		1622	# also paths starting with '/'
		1623	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1624
		1625	sub thawer_merge {
		1626	my ($self, $merge) = @_;
		1627
		1628	# we have to keep some variables in memory intact
		1629	local $self->{path};
		1630	local $self->{load_path};
		1631
		1632	$self->SUPER::thawer_merge ($merge);
		1633	}
		1634
		1635	sub normalise {
		1636	my ($path, $base) = @_;
		1637
		1638	$path = "$path"; # make sure its a string
		1639
		1640	$path =~ s/\.map$//;
		1641
		1642	# map plan:
		1643	#
		1644	# /! non-realised random map exit (special hack!)
		1645	# {... are special paths that are not being touched
		1646	# ?xxx/... are special absolute paths
		1647	# ?random/... random maps
		1648	# /... normal maps
		1649	# ~user/... per-player map of a specific user
		1650
		1651	$path =~ s/$PATH_SEP/\//go;
		1652
		1653	# treat it as relative path if it starts with
		1654	# something that looks reasonable
		1655	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1656	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1657
		1658	$base =~ s{[^/]+/?$}{};
		1659	$path = "$base/$path";
		1660	}
		1661
		1662	for ($path) {
		1663	redo if s{//}{/};
		1664	redo if s{/\.?/}{/};
		1665	redo if s{/[^/]+/\.\./}{/};
		1666	}
		1667
		1668	$path
		1669	}
		1670
		1671	sub new_from_path {
		1672	my (undef, $path, $base) = @_;
		1673
		1674	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1675
		1676	$path = normalise $path, $base;
		1677
		1678	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1679	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1680	my $self = bless cf::map::new, $pkg;
		1681	$self->{path} = $path; $self->path ($path);
		1682	$self->init; # pass $1 etc.
		1683	return $self;
		1684	}
		1685	}
		1686
		1687	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1688	()
		1689	}
		1690
		1691	sub init {
		1692	my ($self) = @_;
		1693
		1694	$self
		1695	}
		1696
		1697	sub as_string {
		1698	my ($self) = @_;
		1699
		1700	"$self->{path}"
		1701	}
		1702
		1703	# the displayed name, this is a one way mapping
		1704	sub visible_name {
		1705	&as_string
		1706	}
		1707
		1708	# the original (read-only) location
		1709	sub load_path {
		1710	my ($self) = @_;
		1711
		1712	"$MAPDIR/$self->{path}.map"
		1713	}
		1714
		1715	# the temporary/swap location
		1716	sub save_path {
		1717	my ($self) = @_;
		1718
		1719	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1720	"$TMPDIR/$path.map"
		1721	}
		1722
		1723	# the unique path, undef == no special unique path
		1724	sub uniq_path {
		1725	my ($self) = @_;
		1726
		1727	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1728	"$UNIQUEDIR/$path"
1168	}	1729	}
1169		1730
1170	# and all this just because we cannot iterate over	1731	# and all this just because we cannot iterate over
1171	# all maps in C++...	1732	# all maps in C++...
1172	sub change_all_map_light {	1733	sub change_all_map_light {
…		…
1174		1735
1175	$_->change_map_light ($change)	1736	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1737	for grep $_->outdoor, values %cf::MAP;
1177	}	1738	}
1178		1739
		1740	sub decay_objects {
		1741	my ($self) = @_;
		1742
		1743	return if $self->{deny_reset};
		1744
		1745	$self->do_decay_objects;
		1746	}
		1747
		1748	sub unlink_save {
		1749	my ($self) = @_;
		1750
		1751	utf8::encode (my $save = $self->save_path);
		1752	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1753	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1754	}
		1755
1179	sub try_load_header($) {	1756	sub load_header_from($) {
1180	my ($path) = @_;	1757	my ($self, $path) = @_;
1181		1758
1182	utf8::encode $path;	1759	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1760	#aio_open $path, O_RDONLY, 0
		1761	# or return;
		1762
		1763	$self->_load_header ($path)
1184	or return;	1764	or return;
1185		1765
1186	my $map = cf::map::new	1766	$self->{load_path} = $path;
		1767
		1768	1
		1769	}
		1770
		1771	sub load_header_orig {
		1772	my ($self) = @_;
		1773
		1774	$self->load_header_from ($self->load_path)
		1775	}
		1776
		1777	sub load_header_temp {
		1778	my ($self) = @_;
		1779
		1780	$self->load_header_from ($self->save_path)
		1781	}
		1782
		1783	sub prepare_temp {
		1784	my ($self) = @_;
		1785
		1786	$self->last_access ((delete $self->{last_access})
		1787	|| $cf::RUNTIME); #d#
		1788	# safety
		1789	$self->{instantiate_time} = $cf::RUNTIME
		1790	if $self->{instantiate_time} > $cf::RUNTIME;
		1791	}
		1792
		1793	sub prepare_orig {
		1794	my ($self) = @_;
		1795
		1796	$self->{load_original} = 1;
		1797	$self->{instantiate_time} = $cf::RUNTIME;
		1798	$self->last_access ($cf::RUNTIME);
		1799	$self->instantiate;
		1800	}
		1801
		1802	sub load_header {
		1803	my ($self) = @_;
		1804
		1805	if ($self->load_header_temp) {
		1806	$self->prepare_temp;
		1807	} else {
		1808	$self->load_header_orig
1187	or return;	1809	or return;
		1810	$self->prepare_orig;
		1811	}
1188		1812
1189	$map->load_header ($path)	1813	$self->{deny_reset} = 1
1190	or return;	1814	if $self->no_reset;
1191		1815
1192	$map->{load_path} = $path;	1816	$self->default_region (cf::region::find_by_path $self->{path})
		1817	unless $self->default_region;
1193		1818
1194	$map	1819	1
1195	}	1820	}
1196		1821
1197	sub find;	1822	sub find;
1198	sub find {	1823	sub find {
1199	my ($path, $origin) = @_;	1824	my ($path, $origin) = @_;
1200		1825
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1826	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1827
1206	cf::lock_wait "map_find:$key";	1828	cf::lock_wait "map_find:$path";
1207		1829
1208	$cf::MAP{$key} || do {	1830	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1831	my $guard = cf::lock_acquire "map_find:$path";
1210		1832	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1833	or return;
1228		1834
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1835	$map->{last_save} = $cf::RUNTIME;
1241		1836
1242	if ($map->should_reset) {	1837	$map->load_header
		1838	or return;
		1839
		1840	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1841	# doing this can freeze the server in a sync job, obviously
		1842	#$cf::WAIT_FOR_TICK->wait;
1243	$map->reset;	1843	$map->reset;
1244	undef $guard;	1844	undef $guard;
1245	$map = find $path	1845	return find $path;
1246	or return;
1247	}	1846	}
1248		1847
1249	$cf::MAP{$key} = $map	1848	$cf::MAP{$path} = $map
1250	}	1849	}
1251	}	1850	}
		1851
		1852	sub pre_load { }
		1853	sub post_load { }
1252		1854
1253	sub load {	1855	sub load {
1254	my ($self) = @_;	1856	my ($self) = @_;
1255		1857
		1858	local $self->{deny_reset} = 1; # loading can take a long time
		1859
1256	my $path = $self->{path};	1860	my $path = $self->{path};
		1861
		1862	{
		1863	my $guard1 = cf::lock_acquire "map_data:$path";
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1864	my $guard2 = cf::lock_acquire "map_load:$path";
1258		1865
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1866	return if $self->in_memory != cf::MAP_SWAPPED;
1260		1867
1261	$self->in_memory (cf::MAP_LOADING);	1868	$self->in_memory (cf::MAP_LOADING);
1262		1869
1263	$self->alloc;	1870	$self->alloc;
		1871
		1872	$self->pre_load;
		1873	cf::cede_to_tick;
		1874
1264	$self->load_objects ($self->{load_path}, 1)	1875	$self->_load_objects ($self->{load_path}, 1)
1265	or return;	1876	or return;
1266		1877
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1878	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1879	if delete $self->{load_original};
1269		1880
1270	if (my $uniq = $path->uniq_path) {	1881	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1882	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1883	if (aio_open $uniq, O_RDONLY, 0) {
1273	$self->clear_unique_items;	1884	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1885	$self->_load_objects ($uniq, 0);
1275	}	1886	}
1276	}	1887	}
1277		1888
		1889	cf::cede_to_tick;
1278	# now do the right thing for maps	1890	# now do the right thing for maps
1279	$self->link_multipart_objects;	1891	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	1892	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	1893	unless $self->difficulty;
		1894	cf::cede_to_tick;
		1895
		1896	unless ($self->{deny_activate}) {
		1897	$self->decay_objects;
		1898	$self->fix_auto_apply;
		1899	$self->update_buttons;
		1900	cf::cede_to_tick;
		1901	$self->set_darkness_map;
		1902	cf::cede_to_tick;
1291	$self->activate;	1903	$self->activate;
1292	}	1904	}
1293		1905
		1906	$self->{last_save} = $cf::RUNTIME;
		1907	$self->last_access ($cf::RUNTIME);
		1908
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1909	$self->in_memory (cf::MAP_IN_MEMORY);
		1910	}
		1911
		1912	$self->post_load;
		1913	}
		1914
		1915	sub customise_for {
		1916	my ($self, $ob) = @_;
		1917
		1918	return find "~" . $ob->name . "/" . $self->{path}
		1919	if $self->per_player;
		1920
		1921	# return find "?party/" . $ob->name . "/" . $self->{path}
		1922	# if $self->per_party;
		1923
		1924	$self
		1925	}
		1926
		1927	# find and load all maps in the 3x3 area around a map
		1928	sub load_neighbours {
		1929	my ($map) = @_;
		1930
		1931	my @neigh; # diagonal neighbours
		1932
		1933	for (0 .. 3) {
		1934	my $neigh = $map->tile_path ($_)
		1935	or next;
		1936	$neigh = find $neigh, $map
		1937	or next;
		1938	$neigh->load;
		1939
		1940	push @neigh,
		1941	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1942	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1943	}
		1944
		1945	for (grep defined $_->[0], @neigh) {
		1946	my ($path, $origin) = @$_;
		1947	my $neigh = find $path, $origin
		1948	or next;
		1949	$neigh->load;
		1950	}
1295	}	1951	}
1296		1952
1297	sub find_sync {	1953	sub find_sync {
1298	my ($path, $origin) = @_;	1954	my ($path, $origin) = @_;
1299		1955
1300	cf::sync_job { cf::map::find $path, $origin }	1956	cf::sync_job { find $path, $origin }
1301	}	1957	}
1302		1958
1303	sub do_load_sync {	1959	sub do_load_sync {
1304	my ($map) = @_;	1960	my ($map) = @_;
1305		1961
		1962	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		1963	if $Coro::current == $Coro::main;
		1964
1306	cf::sync_job { $map->load };	1965	cf::sync_job { $map->load };
		1966	}
		1967
		1968	our %MAP_PREFETCH;
		1969	our $MAP_PREFETCHER = undef;
		1970
		1971	sub find_async {
		1972	my ($path, $origin, $load) = @_;
		1973
		1974	$path = normalise $path, $origin && $origin->{path};
		1975
		1976	if (my $map = $cf::MAP{$path}) {
		1977	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		1978	}
		1979
		1980	$MAP_PREFETCH{$path} |= $load;
		1981
		1982	$MAP_PREFETCHER ||= cf::async {
		1983	while (%MAP_PREFETCH) {
		1984	while (my ($k, $v) = each %MAP_PREFETCH) {
		1985	if (my $map = find $k) {
		1986	$map->load if $v;
		1987	}
		1988
		1989	delete $MAP_PREFETCH{$k};
		1990	}
		1991	}
		1992	undef $MAP_PREFETCHER;
		1993	};
		1994	$MAP_PREFETCHER->prio (6);
		1995
		1996	()
1307	}	1997	}
1308		1998
1309	sub save {	1999	sub save {
1310	my ($self) = @_;	2000	my ($self) = @_;
1311		2001
		2002	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2003
1312	$self->{last_save} = $cf::RUNTIME;	2004	$self->{last_save} = $cf::RUNTIME;
1313		2005
1314	return unless $self->dirty;	2006	return unless $self->dirty;
1315		2007
1316	my $save = $self->{path}->save_path; utf8::encode $save;	2008	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2009	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		2010
1319	$self->{load_path} = $save;	2011	$self->{load_path} = $save;
1320		2012
1321	return if $self->{deny_save};	2013	return if $self->{deny_save};
1322		2014
1323	local $self->{last_access} = $self->last_access;#d#	2015	local $self->{last_access} = $self->last_access;#d#
1324		2016
		2017	cf::async {
		2018	$_->contr->save for $self->players;
		2019	};
		2020
1325	if ($uniq) {	2021	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2022	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	2023	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	2024	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2025	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	2026	}
1331	}	2027	}
1332		2028
1333	sub swap_out {	2029	sub swap_out {
1334	my ($self) = @_;	2030	my ($self) = @_;
1335		2031
1336	# save first because save cedes	2032	# save first because save cedes
1337	$self->save;	2033	$self->save;
		2034
		2035	my $lock = cf::lock_acquire "map_data:$self->{path}";
1338		2036
1339	return if $self->players;	2037	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	2038	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	2039	return if $self->{deny_save};
1342		2040
…		…
1346		2044
1347	sub reset_at {	2045	sub reset_at {
1348	my ($self) = @_;	2046	my ($self) = @_;
1349		2047
1350	# TODO: safety, remove and allow resettable per-player maps	2048	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	2049	return 1e99 if $self->{deny_reset};
1353		2050
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2051	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2052	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		2053
…		…
1361	my ($self) = @_;	2058	my ($self) = @_;
1362		2059
1363	$self->reset_at <= $cf::RUNTIME	2060	$self->reset_at <= $cf::RUNTIME
1364	}	2061	}
1365		2062
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	2063	sub reset {
1388	my ($self) = @_;	2064	my ($self) = @_;
1389		2065
		2066	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2067
1390	return if $self->players;	2068	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		2069
1393	warn "resetting map ", $self->path;#d#	2070	warn "resetting map ", $self->path;
		2071
		2072	$self->in_memory (cf::MAP_SWAPPED);
		2073
		2074	# need to save uniques path
		2075	unless ($self->{deny_save}) {
		2076	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2077
		2078	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2079	if $uniq;
		2080	}
1394		2081
1395	delete $cf::MAP{$self->path};	2082	delete $cf::MAP{$self->path};
		2083
		2084	$self->clear;
1396		2085
1397	$_->clear_links_to ($self) for values %cf::MAP;	2086	$_->clear_links_to ($self) for values %cf::MAP;
1398		2087
1399	$self->unlink_save;	2088	$self->unlink_save;
1400	$self->destroy;	2089	$self->destroy;
…		…
1403	my $nuke_counter = "aaaa";	2092	my $nuke_counter = "aaaa";
1404		2093
1405	sub nuke {	2094	sub nuke {
1406	my ($self) = @_;	2095	my ($self) = @_;
1407		2096
		2097	{
		2098	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2099
		2100	delete $cf::MAP{$self->path};
		2101
		2102	$self->unlink_save;
		2103
		2104	bless $self, "cf::map";
		2105	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	2106	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	2107	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	2108	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2109
		2110	$cf::MAP{$self->path} = $self;
		2111	}
		2112
1411	$self->reset; # polite request, might not happen	2113	$self->reset; # polite request, might not happen
1412	}	2114	}
1413		2115
1414	sub customise_for {	2116	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		2117
1417	if ($map->per_player) {	2118	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2119	maps. May block.
		2120
		2121	=cut
		2122
		2123	sub tmp_maps() {
1419	}	2124	[
1420		2125	map {
1421	$map	2126	utf8::decode $_;
		2127	/\.map$/
		2128	? normalise $_
		2129	: ()
		2130	} @{ aio_readdir $TMPDIR or [] }
		2131	]
1422	}	2132	}
1423		2133
1424	sub emergency_save {	2134	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		2135
1427	warn "enter emergency map save\n";	2136	Returns an arrayref with all map paths of currently instantiated and saved
		2137	random maps. May block.
1428		2138
1429	cf::sync_job {	2139	=cut
1430	warn "begin emergency map save\n";
1431	$_->save for values %cf::MAP;
1432	};
1433		2140
1434	warn "end emergency map save\n";	2141	sub random_maps() {
		2142	[
		2143	map {
		2144	utf8::decode $_;
		2145	/\.map$/
		2146	? normalise "?random/$_"
		2147	: ()
		2148	} @{ aio_readdir $RANDOMDIR or [] }
		2149	]
		2150	}
		2151
		2152	=item cf::map::unique_maps
		2153
		2154	Returns an arrayref of paths of all shared maps that have
		2155	instantiated unique items. May block.
		2156
		2157	=cut
		2158
		2159	sub unique_maps() {
		2160	[
		2161	map {
		2162	utf8::decode $_;
		2163	/\.map$/
		2164	? normalise $_
		2165	: ()
		2166	} @{ aio_readdir $UNIQUEDIR or [] }
		2167	]
1435	}	2168	}
1436		2169
1437	package cf;	2170	package cf;
1438		2171
1439	=back	2172	=back
1440		2173
		2174	=head3 cf::object
		2175
		2176	=cut
		2177
		2178	package cf::object;
		2179
		2180	=over 4
		2181
		2182	=item $ob->inv_recursive
		2183
		2184	Returns the inventory of the object _and_ their inventories, recursively.
		2185
		2186	=cut
		2187
		2188	sub inv_recursive_;
		2189	sub inv_recursive_ {
		2190	map { $_, inv_recursive_ $_->inv } @_
		2191	}
		2192
		2193	sub inv_recursive {
		2194	inv_recursive_ inv $_[0]
		2195	}
		2196
		2197	package cf;
		2198
		2199	=back
1441		2200
1442	=head3 cf::object::player	2201	=head3 cf::object::player
1443		2202
1444	=over 4	2203	=over 4
1445		2204
…		…
1459		2218
1460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2219	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1461		2220
1462	if ($self->{record_replies}) {	2221	if ($self->{record_replies}) {
1463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2222	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2223
1464	} else {	2224	} else {
		2225	my $pl = $self->contr;
		2226
		2227	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2228	my $dialog = $pl->{npc_dialog};
		2229	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2230
		2231	} else {
1465	$msg = $npc->name . " says: $msg" if $npc;	2232	$msg = $npc->name . " says: $msg" if $npc;
1466	$self->message ($msg, $flags);	2233	$self->message ($msg, $flags);
		2234	}
1467	}	2235	}
		2236	}
		2237
		2238	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2239
		2240	=cut
		2241
		2242	sub cf::object::send_msg {
		2243	my $pl = shift->contr
		2244	or return;
		2245	$pl->send_msg (@_);
1468	}	2246	}
1469		2247
1470	=item $player_object->may ("access")	2248	=item $player_object->may ("access")
1471		2249
1472	Returns wether the given player is authorized to access resource "access"	2250	Returns wether the given player is authorized to access resource "access"
…		…
1485		2263
1486	=item $player_object->enter_link	2264	=item $player_object->enter_link
1487		2265
1488	Freezes the player and moves him/her to a special map (C<{link}>).	2266	Freezes the player and moves him/her to a special map (C<{link}>).
1489		2267
1490	The player should be reaosnably safe there for short amounts of time. You	2268	The player should be reasonably safe there for short amounts of time. You
1491	I<MUST> call C<leave_link> as soon as possible, though.	2269	I<MUST> call C<leave_link> as soon as possible, though.
1492		2270
		2271	Will never block.
		2272
1493	=item $player_object->leave_link ($map, $x, $y)	2273	=item $player_object->leave_link ($map, $x, $y)
1494		2274
1495	Moves the player out of the specila link map onto the given map. If the	2275	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	2276	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	2277	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	2278	fails, to the emergency map position.
1499		2279
1500	Might block.	2280	Might block.
1501		2281
1502	=cut	2282	=cut
		2283
		2284	sub link_map {
		2285	unless ($LINK_MAP) {
		2286	$LINK_MAP = cf::map::find "{link}"
		2287	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2288	$LINK_MAP->load;
		2289	}
		2290
		2291	$LINK_MAP
		2292	}
1503		2293
1504	sub cf::object::player::enter_link {	2294	sub cf::object::player::enter_link {
1505	my ($self) = @_;	2295	my ($self) = @_;
1506		2296
1507	$self->deactivate_recursive;	2297	$self->deactivate_recursive;
1508		2298
1509	return if $self->map == $LINK_MAP;	2299	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		2300
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2301	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	2302	if $self->map && $self->map->{path} ne "{link}";
1513		2303
1514	$self->enter_map ($LINK_MAP, 20, 20);	2304	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	2305	}
1516		2306
1517	sub cf::object::player::leave_link {	2307	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	2308	my ($self, $map, $x, $y) = @_;
		2309
		2310	return unless $self->contr->active;
1519		2311
1520	my $link_pos = delete $self->{_link_pos};	2312	my $link_pos = delete $self->{_link_pos};
1521		2313
1522	unless ($map) {	2314	unless ($map) {
1523	# restore original map position	2315	# restore original map position
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	2329	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2330	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2331	if $x <=0 && $y <= 0;
1540		2332
1541	$map->load;	2333	$map->load;
		2334	$map->load_neighbours;
1542		2335
		2336	return unless $self->contr->active;
1543	$self->activate_recursive;	2337	$self->activate_recursive;
		2338
		2339	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	2340	$self->enter_map ($map, $x, $y);
1545	}	2341	}
1546		2342
1547	cf::player->attach (	2343	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1548	on_logout => sub {
1549	my ($pl) = @_;
1550		2344
1551	# abort map switching before logout	2345	Moves the player to the given map-path and coordinates by first freezing
1552	if ($pl->ob->{_link_pos}) {	2346	her, loading and preparing them map, calling the provided $check callback
1553	cf::sync_job {	2347	that has to return the map if sucecssful, and then unfreezes the player on
1554	$pl->ob->leave_link	2348	the new (success) or old (failed) map position. In either case, $done will
1555	};	2349	be called at the end of this process.
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560		2350
1561	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574
1575	=item $player_object->goto_map ($path, $x, $y)
1576
1577	=cut	2351	=cut
1578		2352
		2353	our $GOTOGEN;
		2354
1579	sub cf::object::player::goto_map {	2355	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2356	my ($self, $path, $x, $y, $check, $done) = @_;
		2357
		2358	# do generation counting so two concurrent goto's will be executed in-order
		2359	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2360
1582	$self->enter_link;	2361	$self->enter_link;
1583		2362
1584	(cf::async {	2363	(async {
1585	$path = new cf::path $path;	2364	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	2365	my $map = cf::map::find $path;
		2366
		2367	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2368	$map = $map->customise_for ($self);
1589		2369	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2370	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2371	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2372	}
1594		2373
		2374	$map
		2375	};
		2376
		2377	if ($@) {
		2378	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2379	LOG llevError | logBacktrace, Carp::longmess $@;
		2380	}
		2381
		2382	if ($gen == $self->{_goto_generation}) {
		2383	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2384	$self->leave_link ($map, $x, $y);
		2385	}
		2386
		2387	$done->() if $done;
1596	})->prio (1);	2388	})->prio (1);
1597	}	2389	}
1598		2390
1599	=item $player_object->enter_exit ($exit_object)	2391	=item $player_object->enter_exit ($exit_object)
1600		2392
…		…
1602		2394
1603	sub parse_random_map_params {	2395	sub parse_random_map_params {
1604	my ($spec) = @_;	2396	my ($spec) = @_;
1605		2397
1606	my $rmp = { # defaults	2398	my $rmp = { # defaults
1607	xsize => 10,	2399	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2400	ysize => (cf::rndm 15, 40),
		2401	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2402	#layout => string,
1609	};	2403	};
1610		2404
1611	for (split /\n/, $spec) {	2405	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2406	my ($k, $v) = split /\s+/, $_, 2;
1613		2407
…		…
1617	$rmp	2411	$rmp
1618	}	2412	}
1619		2413
1620	sub prepare_random_map {	2414	sub prepare_random_map {
1621	my ($exit) = @_;	2415	my ($exit) = @_;
		2416
		2417	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		2418
1623	# all this does is basically replace the /! path by	2419	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	2420	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	2421	# that depends on the exit object
1626		2422
1627	my $rmp = parse_random_map_params $exit->msg;	2423	my $rmp = parse_random_map_params $exit->msg;
1628		2424
1629	if ($exit->map) {	2425	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2426	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2427	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2428	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2429	$rmp->{origin_y} = $exit->y;
1634	}	2430	}
1635		2431
1636	$rmp->{random_seed} ||= $exit->random_seed;	2432	$rmp->{random_seed} ||= $exit->random_seed;
1637		2433
1638	my $data = cf::to_json $rmp;	2434	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2435	my $md5 = Digest::MD5::md5_hex $data;
		2436	my $meta = "$RANDOMDIR/$md5.meta";
1640		2437
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2438	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2439	aio_write $fh, 0, (length $data), $data, 0;
		2440	undef $fh;
		2441	aio_rename "$meta~", $meta;
1643		2442
1644	$exit->slaying ("?random/$md5");	2443	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2444	$exit->msg (undef);
1646	}	2445	}
1647	}	2446	}
…		…
1649	sub cf::object::player::enter_exit {	2448	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2449	my ($self, $exit) = @_;
1651		2450
1652	return unless $self->type == cf::PLAYER;	2451	return unless $self->type == cf::PLAYER;
1653		2452
		2453	if ($exit->slaying eq "/!") {
		2454	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2455	# the problem is that $exit might not survive long enough
		2456	# so it needs to be done right now, right here
		2457	cf::sync_job { prepare_random_map $exit };
		2458	}
		2459
		2460	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2461	my $hp = $exit->stats->hp;
		2462	my $sp = $exit->stats->sp;
		2463
1654	$self->enter_link;	2464	$self->enter_link;
1655		2465
		2466	# if exit is damned, update players death & WoR home-position
		2467	$self->contr->savebed ($slaying, $hp, $sp)
		2468	if $exit->flag (FLAG_DAMNED);
		2469
1656	(cf::async {	2470	(async {
1657	$self->deactivate_recursive; # just to be sure	2471	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2472	unless (eval {
1659	prepare_random_map $exit	2473	$self->goto ($slaying, $hp, $sp);
1660	if $exit->slaying eq "/!";
1661
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664		2474
1665	1;	2475	1;
1666	}) {	2476	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2477	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2478	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2479	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2480	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2481
1672	warn "ERROR in enter_exit: $@";	2482	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2483	$self->leave_link;
1674	}	2484	}
1675	})->prio (1);	2485	})->prio (1);
…		…
1688		2498
1689	sub cf::client::send_drawinfo {	2499	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2500	my ($self, $text, $flags) = @_;
1691		2501
1692	utf8::encode $text;	2502	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2503	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2504	}
1695		2505
		2506	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	Send a drawinfo or msg packet to the client, formatting the msg for the
		2509	client if neccessary. C<$type> should be a string identifying the type of
		2510	the message, with C<log> being the default. If C<$color> is negative, suppress
		2511	the message unless the client supports the msg packet.
		2512
		2513	=cut
		2514
		2515	our %CHANNEL = (
		2516	"c/identify" => {
		2517	id => "identify",
		2518	title => "Identify",
		2519	reply => undef,
		2520	tooltip => "Items recently identified",
		2521	},
		2522	"c/examine" => {
		2523	id => "examine",
		2524	title => "Examine",
		2525	reply => undef,
		2526	tooltip => "Signs and other items you examined",
		2527	},
		2528	);
		2529
		2530	sub cf::client::send_msg {
		2531	my ($self, $channel, $msg, $color, @extra) = @_;
		2532
		2533	$msg = $self->pl->expand_cfpod ($msg);
		2534
		2535	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2536
		2537	# check predefined channels, for the benefit of C
		2538	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2539
		2540	if (ref $channel) {
		2541	# send meta info to client, if not yet sent
		2542	unless (exists $self->{channel}{$channel->{id}}) {
		2543	$self->{channel}{$channel->{id}} = $channel;
		2544	$self->ext_msg (channel_info => $channel)
		2545	if $self->can_msg;
		2546	}
		2547
		2548	$channel = $channel->{id};
		2549	}
		2550
		2551	return unless @extra || length $msg;
		2552
		2553	if ($self->can_msg) {
		2554	# default colour, mask it out
		2555	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2556	if $color & cf::NDI_DEF;
		2557
		2558	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2559	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2560	} else {
		2561	if ($color >= 0) {
		2562	# replace some tags by gcfclient-compatible ones
		2563	for ($msg) {
		2564	1 while
		2565	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2566	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2567	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2568	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2569	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2570	}
		2571
		2572	$color &= cf::NDI_COLOR_MASK;
		2573
		2574	utf8::encode $msg;
		2575
		2576	if (0 && $msg =~ /\[/) {
		2577	# COMMAND/INFO
		2578	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2579	} else {
		2580	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2581	$self->send_packet ("drawinfo $color $msg")
		2582	}
		2583	}
		2584	}
		2585	}
		2586
		2587	=item $client->ext_msg ($type, @msg)
		2588
		2589	Sends an ext event to the client.
		2590
		2591	=cut
		2592
		2593	sub cf::client::ext_msg($$@) {
		2594	my ($self, $type, @msg) = @_;
		2595
		2596	if ($self->extcmd == 2) {
		2597	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2598	} elsif ($self->extcmd == 1) { # TODO: remove
		2599	push @msg, msgtype => "event_$type";
		2600	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2601	}
		2602	}
		2603
		2604	=item $client->ext_reply ($msgid, @msg)
		2605
		2606	Sends an ext reply to the client.
		2607
		2608	=cut
		2609
		2610	sub cf::client::ext_reply($$@) {
		2611	my ($self, $id, @msg) = @_;
		2612
		2613	if ($self->extcmd == 2) {
		2614	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2615	} elsif ($self->extcmd == 1) {
		2616	#TODO: version 1, remove
		2617	unshift @msg, msgtype => "reply", msgid => $id;
		2618	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2619	}
		2620	}
1696		2621
1697	=item $success = $client->query ($flags, "text", \&cb)	2622	=item $success = $client->query ($flags, "text", \&cb)
1698		2623
1699	Queues a query to the client, calling the given callback with	2624	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2625	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1701	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2626	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1702		2627
1703	Queries can fail, so check the return code. Or don't, as queries will become	2628	Queries can fail, so check the return code. Or don't, as queries will
1704	reliable at some point in the future.	2629	become reliable at some point in the future.
1705		2630
1706	=cut	2631	=cut
1707		2632
1708	sub cf::client::query {	2633	sub cf::client::query {
1709	my ($self, $flags, $text, $cb) = @_;	2634	my ($self, $flags, $text, $cb) = @_;
…		…
1717	utf8::encode $text;	2642	utf8::encode $text;
1718	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2643	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1719		2644
1720	$self->send_packet ($self->{query_queue}[0][0])	2645	$self->send_packet ($self->{query_queue}[0][0])
1721	if @{ $self->{query_queue} } == 1;	2646	if @{ $self->{query_queue} } == 1;
		2647
		2648	1
1722	}	2649	}
1723		2650
1724	cf::client->attach (	2651	cf::client->attach (
		2652	on_connect => sub {
		2653	my ($ns) = @_;
		2654
		2655	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2656	},
1725	on_reply => sub {	2657	on_reply => sub {
1726	my ($ns, $msg) = @_;	2658	my ($ns, $msg) = @_;
1727		2659
1728	# this weird shuffling is so that direct followup queries	2660	# this weird shuffling is so that direct followup queries
1729	# get handled first	2661	# get handled first
1730	my $queue = delete $ns->{query_queue}	2662	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2663	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2664
1733	(shift @$queue)->[1]->($msg);	2665	(shift @$queue)->[1]->($msg);
		2666	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2667
1735	push @{ $ns->{query_queue} }, @$queue;	2668	push @{ $ns->{query_queue} }, @$queue;
1736		2669
1737	if (@{ $ns->{query_queue} } == @$queue) {	2670	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2671	if (@$queue) {
…		…
1740	} else {	2673	} else {
1741	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2674	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1742	}	2675	}
1743	}	2676	}
1744	},	2677	},
		2678	on_exticmd => sub {
		2679	my ($ns, $buf) = @_;
		2680
		2681	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2682
		2683	if (ref $msg) {
		2684	my ($type, $reply, @payload) =
		2685	"ARRAY" eq ref $msg
		2686	? @$msg
		2687	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2688
		2689	my @reply;
		2690
		2691	if (my $cb = $EXTICMD{$type}) {
		2692	@reply = $cb->($ns, @payload);
		2693	}
		2694
		2695	$ns->ext_reply ($reply, @reply)
		2696	if $reply;
		2697
		2698	} else {
		2699	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2700	}
		2701
		2702	cf::override;
		2703	},
1745	);	2704	);
1746		2705
1747	=item $client->coro (\&cb)	2706	=item $client->async (\&cb)
1748		2707
1749	Create a new coroutine, running the specified callback. The coroutine will	2708	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2709	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2710	or loss of connection).
1752		2711
1753	=cut	2712	=cut
1754		2713
1755	sub cf::client::coro {	2714	sub cf::client::async {
1756	my ($self, $cb) = @_;	2715	my ($self, $cb) = @_;
1757		2716
1758	my $coro = &cf::async ($cb);	2717	my $coro = &Coro::async ($cb);
1759		2718
1760	$coro->on_destroy (sub {	2719	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2720	delete $self->{_coro}{$coro+0};
1762	});	2721	});
1763		2722
…		…
1790	our $safe = new Safe "safe";	2749	our $safe = new Safe "safe";
1791	our $safe_hole = new Safe::Hole;	2750	our $safe_hole = new Safe::Hole;
1792		2751
1793	$SIG{FPE} = 'IGNORE';	2752	$SIG{FPE} = 'IGNORE';
1794		2753
1795	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2754	$safe->permit_only (Opcode::opset qw(
		2755	:base_core :base_mem :base_orig :base_math
		2756	grepstart grepwhile mapstart mapwhile
		2757	sort time
		2758	));
1796		2759
1797	# here we export the classes and methods available to script code	2760	# here we export the classes and methods available to script code
1798		2761
1799	=pod	2762	=pod
1800		2763
1801	The following fucntions and emthods are available within a safe environment:	2764	The following functions and methods are available within a safe environment:
1802		2765
1803	cf::object contr pay_amount pay_player map	2766	cf::object
		2767	contr pay_amount pay_player map x y force_find force_add
		2768	insert remove name archname title slaying race decrease_ob_nr
		2769
1804	cf::object::player player	2770	cf::object::player
1805	cf::player peaceful	2771	player
1806	cf::map trigger	2772
		2773	cf::player
		2774	peaceful
		2775
		2776	cf::map
		2777	trigger
1807		2778
1808	=cut	2779	=cut
1809		2780
1810	for (	2781	for (
1811	["cf::object" => qw(contr pay_amount pay_player map)],	2782	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2783	insert remove inv name archname title slaying race
		2784	decrease_ob_nr)],
1812	["cf::object::player" => qw(player)],	2785	["cf::object::player" => qw(player)],
1813	["cf::player" => qw(peaceful)],	2786	["cf::player" => qw(peaceful)],
1814	["cf::map" => qw(trigger)],	2787	["cf::map" => qw(trigger)],
1815	) {	2788	) {
1816	no strict 'refs';	2789	no strict 'refs';
…		…
1887	=back	2860	=back
1888		2861
1889	=cut	2862	=cut
1890		2863
1891	#############################################################################	2864	#############################################################################
		2865	# the server's init and main functions
1892		2866
1893	=head2 EXTENSION DATABASE SUPPORT	2867	sub load_facedata($) {
		2868	my ($path) = @_;
1894		2869
1895	Crossfire maintains a very simple database for extension use. It can	2870	# HACK to clear player env face cache, we need some signal framework
1896	currently store anything that can be serialised using Storable, which	2871	# for this (global event?)
1897	excludes objects.	2872	%ext::player_env::MUSIC_FACE_CACHE = ();
1898		2873
1899	The parameter C<$family> should best start with the name of the extension	2874	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1900	using it, it should be unique.
1901		2875
1902	=over 4	2876	warn "loading facedata from $path\n";
1903		2877
1904	=item $hashref = cf::db_get $family	2878	my $facedata;
		2879	0 < aio_load $path, $facedata
		2880	or die "$path: $!";
1905		2881
1906	Return a hashref for use by the extension C<$family>, which can be	2882	$facedata = Coro::Storable::thaw $facedata;
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909		2883
1910	=item $value = cf::db_get $family => $key	2884	$facedata->{version} == 2
		2885	or cf::cleanup "$path: version mismatch, cannot proceed.";
1911		2886
1912	Returns a single value from the database	2887	# patch in the exptable
1913		2888	$facedata->{resource}{"res/exp_table"} = {
1914	=item cf::db_put $family => $hashref	2889	type => FT_RSRC,
1915		2890	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_put $family => $key => $value
1920
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931
1932	=cut
1933
1934	our $DB;
1935
1936	{
1937	my $path = cf::localdir . "/database.pst";
1938
1939	sub db_load() {
1940	$DB = stat $path ? Storable::retrieve $path : { };
1941	}
1942
1943	my $pid;
1944
1945	sub db_save() {
1946	waitpid $pid, 0 if $pid;
1947	if (0 == ($pid = fork)) {
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	2891	};
		2892	cf::cede_to_tick;
1965		2893
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}	2894	{
		2895	my $faces = $facedata->{faceinfo};
1970		2896
1971	sub db_get($;$) {	2897	while (my ($face, $info) = each %$faces) {
1972	@_ >= 2	2898	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1973	? $DB->{$_[0]}{$_[1]}	2899	cf::face::set_visibility $idx, $info->{visibility};
1974	: ($DB->{$_[0]} ||= { })	2900	cf::face::set_magicmap $idx, $info->{magicmap};
1975	}	2901	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2902	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1976		2903
1977	sub db_put($$;$) {	2904	cf::cede_to_tick;
1978	if (@_ >= 3) {
1979	$DB->{$_[0]}{$_[1]} = $_[2];
1980	} else {
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985
1986	cf::global->attach (
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	2905	}
1991	);
1992	}
1993		2906
1994	#############################################################################	2907	while (my ($face, $info) = each %$faces) {
1995	# the server's main()	2908	next unless $info->{smooth};
		2909	my $idx = cf::face::find $face
		2910	or next;
		2911	if (my $smooth = cf::face::find $info->{smooth}) {
		2912	cf::face::set_smooth $idx, $smooth;
		2913	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2914	} else {
		2915	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2916	}
1996		2917
1997	sub cfg_load {	2918	cf::cede_to_tick;
		2919	}
		2920	}
		2921
		2922	{
		2923	my $anims = $facedata->{animinfo};
		2924
		2925	while (my ($anim, $info) = each %$anims) {
		2926	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2927	cf::cede_to_tick;
		2928	}
		2929
		2930	cf::anim::invalidate_all; # d'oh
		2931	}
		2932
		2933	{
		2934	# TODO: for gcfclient pleasure, we should give resources
		2935	# that gcfclient doesn't grok a >10000 face index.
		2936	my $res = $facedata->{resource};
		2937
		2938	my $soundconf = delete $res->{"res/sound.conf"};
		2939
		2940	while (my ($name, $info) = each %$res) {
		2941	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2942	my $data;
		2943
		2944	if ($info->{type} & 1) {
		2945	# prepend meta info
		2946
		2947	my $meta = $enc->encode ({
		2948	name => $name,
		2949	%{ $info->{meta} || {} },
		2950	});
		2951
		2952	$data = pack "(w/a*)*", $meta, $info->{data};
		2953	} else {
		2954	$data = $info->{data};
		2955	}
		2956
		2957	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2958	cf::face::set_type $idx, $info->{type};
		2959
		2960	cf::cede_to_tick;
		2961	}
		2962
		2963	if ($soundconf) {
		2964	$soundconf = $enc->decode (delete $soundconf->{data});
		2965
		2966	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2967	my $sound = $soundconf->{compat}[$_]
		2968	or next;
		2969
		2970	my $face = cf::face::find "sound/$sound->[1]";
		2971	cf::sound::set $sound->[0] => $face;
		2972	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2973	}
		2974
		2975	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2976	my $face = cf::face::find "sound/$v";
		2977	cf::sound::set $k => $face;
		2978	}
		2979	}
		2980	}
		2981
		2982	1
		2983	}
		2984
		2985	register_exticmd fx_want => sub {
		2986	my ($ns, $want) = @_;
		2987
		2988	while (my ($k, $v) = each %$want) {
		2989	$ns->fx_want ($k, $v);
		2990	}
		2991	};
		2992
		2993	sub reload_regions {
		2994	# HACK to clear player env face cache, we need some signal framework
		2995	# for this (global event?)
		2996	%ext::player_env::MUSIC_FACE_CACHE = ();
		2997
		2998	load_resource_file "$MAPDIR/regions"
		2999	or die "unable to load regions file\n";
		3000
		3001	for (cf::region::list) {
		3002	$_->{match} = qr/$_->{match}/
		3003	if exists $_->{match};
		3004	}
		3005	}
		3006
		3007	sub reload_facedata {
		3008	load_facedata "$DATADIR/facedata"
		3009	or die "unable to load facedata\n";
		3010	}
		3011
		3012	sub reload_archetypes {
		3013	load_resource_file "$DATADIR/archetypes"
		3014	or die "unable to load archetypes\n";
		3015	#d# NEED to laod twice to resolve forward references
		3016	# this really needs to be done in an extra post-pass
		3017	# (which needs to be synchronous, so solve it differently)
		3018	load_resource_file "$DATADIR/archetypes"
		3019	or die "unable to load archetypes\n";
		3020	}
		3021
		3022	sub reload_treasures {
		3023	load_resource_file "$DATADIR/treasures"
		3024	or die "unable to load treasurelists\n";
		3025	}
		3026
		3027	sub reload_resources {
		3028	warn "reloading resource files...\n";
		3029
		3030	reload_regions;
		3031	reload_facedata;
		3032	#reload_archetypes;#d#
		3033	reload_archetypes;
		3034	reload_treasures;
		3035
		3036	warn "finished reloading resource files\n";
		3037	}
		3038
		3039	sub init {
		3040	reload_resources;
		3041	}
		3042
		3043	sub reload_config {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	3044	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	3045	or return;
2000		3046
2001	local $/;	3047	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	3048	*CFG = YAML::Syck::Load <$fh>;
2003		3049
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3050	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		3051
		3052	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3053	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3054
2006	if (exists $CFG{mlockall}) {	3055	if (exists $CFG{mlockall}) {
2007	eval {	3056	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	3057	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	3058	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	3059	};
2011	warn $@ if $@;	3060	warn $@ if $@;
2012	}	3061	}
2013	}	3062	}
2014		3063
2015	sub main {	3064	sub main {
2016	# we must not ever block the main coroutine	3065	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	3066	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3067	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	3068	(async {
2020	Event::one_event;	3069	Event::one_event;
2021	})->();	3070	})->prio (Coro::PRIO_MAX);
2022	};	3071	};
2023		3072
2024	cfg_load;	3073	reload_config;
2025	db_load;	3074	db_init;
2026	load_extensions;	3075	load_extensions;
		3076
		3077	$TICK_WATCHER->start;
2027	Event::loop;	3078	Event::loop;
2028	}	3079	}
2029		3080
2030	#############################################################################	3081	#############################################################################
2031	# initialisation	3082	# initialisation and cleanup
2032		3083
		3084	# install some emergency cleanup handlers
		3085	BEGIN {
		3086	for my $signal (qw(INT HUP TERM)) {
		3087	Event->signal (
		3088	reentrant => 0,
		3089	data => WF_AUTOCANCEL,
		3090	signal => $signal,
		3091	prio => 0,
		3092	cb => sub {
		3093	cf::cleanup "SIG$signal";
		3094	},
		3095	);
		3096	}
		3097	}
		3098
		3099	sub write_runtime {
		3100	my $runtime = "$LOCALDIR/runtime";
		3101
		3102	# first touch the runtime file to show we are still running:
		3103	# the fsync below can take a very very long time.
		3104
		3105	IO::AIO::aio_utime $runtime, undef, undef;
		3106
		3107	my $guard = cf::lock_acquire "write_runtime";
		3108
		3109	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3110	or return;
		3111
		3112	my $value = $cf::RUNTIME + 90 + 10;
		3113	# 10 is the runtime save interval, for a monotonic clock
		3114	# 60 allows for the watchdog to kill the server.
		3115
		3116	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3117	and return;
		3118
		3119	# always fsync - this file is important
		3120	aio_fsync $fh
		3121	and return;
		3122
		3123	# touch it again to show we are up-to-date
		3124	aio_utime $fh, undef, undef;
		3125
		3126	close $fh
		3127	or return;
		3128
		3129	aio_rename "$runtime~", $runtime
		3130	and return;
		3131
		3132	warn "runtime file written.\n";
		3133
		3134	1
		3135	}
		3136
		3137	sub emergency_save() {
		3138	my $freeze_guard = cf::freeze_mainloop;
		3139
		3140	warn "enter emergency perl save\n";
		3141
		3142	cf::sync_job {
		3143	# use a peculiar iteration method to avoid tripping on perl
		3144	# refcount bugs in for. also avoids problems with players
		3145	# and maps saved/destroyed asynchronously.
		3146	warn "begin emergency player save\n";
		3147	for my $login (keys %cf::PLAYER) {
		3148	my $pl = $cf::PLAYER{$login} or next;
		3149	$pl->valid or next;
		3150	$pl->save;
		3151	}
		3152	warn "end emergency player save\n";
		3153
		3154	warn "begin emergency map save\n";
		3155	for my $path (keys %cf::MAP) {
		3156	my $map = $cf::MAP{$path} or next;
		3157	$map->valid or next;
		3158	$map->save;
		3159	}
		3160	warn "end emergency map save\n";
		3161
		3162	warn "begin emergency database checkpoint\n";
		3163	BDB::db_env_txn_checkpoint $DB_ENV;
		3164	warn "end emergency database checkpoint\n";
		3165	};
		3166
		3167	warn "leave emergency perl save\n";
		3168	}
		3169
		3170	sub post_cleanup {
		3171	my ($make_core) = @_;
		3172
		3173	warn Carp::longmess "post_cleanup backtrace"
		3174	if $make_core;
		3175	}
		3176
2033	sub reload() {	3177	sub do_reload_perl() {
2034	# can/must only be called in main	3178	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	3179	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	3180	warn "can only reload from main coroutine";
2037	return;	3181	return;
2038	}	3182	}
2039		3183
2040	warn "reloading...";	3184	warn "reloading...";
2041		3185
2042	my $guard = freeze_mainloop;	3186	warn "entering sync_job";
		3187
		3188	cf::sync_job {
		3189	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	3190	cf::emergency_save;
		3191	cf::write_runtime; # external watchdog should not bark
2044		3192
2045	eval {	3193	warn "syncing database to disk";
		3194	BDB::db_env_txn_checkpoint $DB_ENV;
		3195
2046	# if anything goes wrong in here, we should simply crash as we already saved	3196	# if anything goes wrong in here, we should simply crash as we already saved
2047		3197
2048	# cancel all watchers	3198	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	3199	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	3200	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	3201	}
2052		3202
		3203	warn "flushing outstanding aio requests";
		3204	for (;;) {
		3205	BDB::flush;
		3206	IO::AIO::flush;
		3207	Coro::cede;
		3208	last unless IO::AIO::nreqs || BDB::nreqs;
		3209	warn "iterate...";
		3210	}
		3211
		3212	++$RELOAD;
		3213
2053	# cancel all extension coros	3214	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	3215	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	3216	%EXT_CORO = ();
2056		3217
2057	# unload all extensions	3218	warn "removing commands";
2058	for (@exts) {	3219	%COMMAND = ();
		3220
		3221	warn "removing ext/exti commands";
		3222	%EXTCMD = ();
		3223	%EXTICMD = ();
		3224
		3225	warn "unloading/nuking all extensions";
		3226	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	3227	warn "... unloading $pkg";
2060	unload_extension $_;	3228
		3229	if (my $cb = $pkg->can ("unload")) {
		3230	eval {
		3231	$cb->($pkg);
		3232	1
		3233	} or warn "$pkg unloaded, but with errors: $@";
2061	}	3234	}
2062		3235
		3236	warn "... nuking $pkg";
		3237	Symbol::delete_package $pkg;
		3238	}
		3239
2063	# unload all modules loaded from $LIBDIR	3240	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	3241	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3242	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		3243
2067	warn "removing <$k>";	3244	warn "... unloading $k";
2068	delete $INC{$k};	3245	delete $INC{$k};
2069		3246
2070	$k =~ s/\.pm$//;	3247	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	3248	$k =~ s/\//::/g;
2072		3249
…		…
2075	}	3252	}
2076		3253
2077	Symbol::delete_package $k;	3254	Symbol::delete_package $k;
2078	}	3255	}
2079		3256
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	3257	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	3258	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3259	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		3260
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	3261	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	3262	delete $INC{"cf.pm"};
		3263	delete $INC{"cf/pod.pm"};
2093		3264
2094	# don't, removes xs symbols, too,	3265	# don't, removes xs symbols, too,
2095	# and global variables created in xs	3266	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	3267	#Symbol::delete_package __PACKAGE__;
2097		3268
2098	# reload cf.pm	3269	warn "unload completed, starting to reload now";
		3270
2099	warn "reloading cf.pm";	3271	warn "reloading cf.pm";
2100	require cf;	3272	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3273	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		3274
2103	# load config and database again	3275	warn "loading config and database again";
2104	cf::cfg_load;	3276	cf::reload_config;
2105	cf::db_load;
2106		3277
2107	# load extensions
2108	warn "load extensions";	3278	warn "loading extensions";
2109	cf::load_extensions;	3279	cf::load_extensions;
2110		3280
2111	# reattach attachments to objects	3281	warn "reattaching attachments to objects/players";
2112	warn "reattach";	3282	_global_reattach; # objects, sockets
2113	_global_reattach;	3283	warn "reattaching attachments to maps";
2114	};	3284	reattach $_ for values %MAP;
		3285	warn "reattaching attachments to players";
		3286	reattach $_ for values %PLAYER;
2115		3287
2116	if ($@) {	3288	warn "leaving sync_job";
		3289
		3290	1
		3291	} or do {
2117	warn $@;	3292	warn $@;
2118	warn "error while reloading, exiting.";	3293	warn "error while reloading, exiting.";
2119	exit 1;	3294	exit 1;
2120	}	3295	};
2121		3296
2122	warn "reloaded successfully";	3297	warn "reloaded";
2123	};	3298	};
2124		3299
2125	#############################################################################	3300	our $RELOAD_WATCHER; # used only during reload
2126		3301
2127	unless ($LINK_MAP) {	3302	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	3303	# doing reload synchronously and two reloads happen back-to-back,
		3304	# coro crashes during coro_state_free->destroy here.
2129		3305
2130	$LINK_MAP->width (41);	3306	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	3307	reentrant => 0,
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,	3308	after => 0,
		3309	data => WF_AUTOCANCEL,
2140	cb => sub {	3310	cb => sub {
2141	$_[0]->w->cancel;	3311	do_reload_perl;
2142		3312	undef $RELOAD_WATCHER;
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});	3313	},
2161		3314	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	3315	}
2167
2168	register "<global>", __PACKAGE__;
2169		3316
2170	register_command "reload" => sub {	3317	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	3318	my ($who, $arg) = @_;
2172		3319
2173	if ($who->flag (FLAG_WIZ)) {	3320	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	3321	$who->message ("reloading server.");
		3322	async { reload_perl };
2177	}	3323	}
2178	};	3324	};
2179		3325
2180	unshift @INC, $LIBDIR;	3326	unshift @INC, $LIBDIR;
2181		3327
		3328	my $bug_warning = 0;
		3329
		3330	our @WAIT_FOR_TICK;
		3331	our @WAIT_FOR_TICK_BEGIN;
		3332
		3333	sub wait_for_tick {
		3334	return unless $TICK_WATCHER->is_active;
		3335	return if $Coro::current == $Coro::main;
		3336
		3337	my $signal = new Coro::Signal;
		3338	push @WAIT_FOR_TICK, $signal;
		3339	$signal->wait;
		3340	}
		3341
		3342	sub wait_for_tick_begin {
		3343	return unless $TICK_WATCHER->is_active;
		3344	return if $Coro::current == $Coro::main;
		3345
		3346	my $signal = new Coro::Signal;
		3347	push @WAIT_FOR_TICK_BEGIN, $signal;
		3348	$signal->wait;
		3349	}
		3350
		3351	my $min = 1e6;#d#
		3352	my $avg = 10;
2182	$TICK_WATCHER = Event->timer (	3353	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	3354	reentrant => 0,
		3355	parked => 1,
2184	prio => 0,	3356	prio => 0,
2185	at => $NEXT_TICK || $TICK,	3357	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	3358	data => WF_AUTOCANCEL,
2187	cb => sub {	3359	cb => sub {
		3360	if ($Coro::current != $Coro::main) {
		3361	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3362	unless ++$bug_warning > 10;
		3363	return;
		3364	}
		3365
		3366	$NOW = $tick_start = Event::time;
		3367
2188	cf::server_tick; # one server iteration	3368	cf::server_tick; # one server iteration
		3369
		3370	0 && sync_job {#d#
		3371	for(1..10) {
		3372	my $t = Event::time;
		3373	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3374	or die;
		3375
		3376	$map->width (50);
		3377	$map->height (50);
		3378	$map->alloc;
		3379	$map->_load_objects ("/tmp/x.map", 1);
		3380	my $t = Event::time - $t;
		3381
		3382	#next unless $t < 0.0013;#d#
		3383	if ($t < $min) {
		3384	$min = $t;
		3385	}
		3386	$avg = $avg * 0.99 + $t * 0.01;
		3387	}
		3388	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3389	exit 0;
		3390	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3391	};
		3392
2189	$RUNTIME += $TICK;	3393	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	3394	$NEXT_TICK += $TICK;
2191		3395
		3396	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3397	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3398	Coro::async_pool {
		3399	write_runtime
		3400	or warn "ERROR: unable to write runtime file: $!";
		3401	};
		3402	}
		3403
		3404	# my $AFTER = Event::time;
		3405	# warn $AFTER - $NOW;#d#
		3406
		3407	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3408	$sig->send;
		3409	}
		3410	while (my $sig = shift @WAIT_FOR_TICK) {
		3411	$sig->send;
		3412	}
		3413
		3414	$NOW = Event::time;
		3415
2192	# if we are delayed by four ticks or more, skip them all	3416	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3417	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2194		3418
2195	$TICK_WATCHER->at ($NEXT_TICK);	3419	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	3420	$TICK_WATCHER->start;
		3421
		3422	$LOAD = ($NOW - $tick_start) / $TICK;
		3423	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3424
		3425	_post_tick;
		3426
		3427
2197	},	3428	},
2198	);	3429	);
2199		3430
		3431	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	3432	BDB::max_poll_time $TICK * 0.1;
2201		3433	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	3434	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	3435	fd => BDB::poll_fileno,
2204	poll => 'r',	3436	poll => 'r',
2205	prio => 5,	3437	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	3438	data => WF_AUTOCANCEL,
2212	after => 0,	3439	cb => \&BDB::poll_cb,
2213	interval => 10,	3440	);
2214	cb => sub {	3441	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	3442
2216	write_runtime	3443	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	3444	my $status;
		3445	my $current = $Coro::current;
		3446	(
		3447	sub {
		3448	$status = $!;
		3449	$current->ready; undef $current;
		3450	},
		3451	sub {
		3452	Coro::schedule while defined $current;
		3453	$! = $status;
		3454	},
		3455	)
		3456	};
		3457
		3458	unless ($DB_ENV) {
		3459	$DB_ENV = BDB::db_env_create;
		3460
		3461	cf::sync_job {
		3462	eval {
		3463	BDB::db_env_open
		3464	$DB_ENV,
		3465	$BDBDIR,
		3466	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3467	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3468	0666;
		3469
		3470	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3471
		3472	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3473	$DB_ENV->set_lk_detect;
		3474	};
		3475
		3476	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	3477	};
2219	},	3478	}
2220	);	3479	}
		3480
		3481	{
		3482	IO::AIO::min_parallel 8;
		3483
		3484	undef $Coro::AIO::WATCHER;
		3485	IO::AIO::max_poll_time $TICK * 0.1;
		3486	$AIO_POLL_WATCHER = Event->io (
		3487	reentrant => 0,
		3488	data => WF_AUTOCANCEL,
		3489	fd => IO::AIO::poll_fileno,
		3490	poll => 'r',
		3491	prio => 6,
		3492	cb => \&IO::AIO::poll_cb,
		3493	);
		3494	}
		3495
		3496	my $_log_backtrace;
		3497
		3498	sub _log_backtrace {
		3499	my ($msg, @addr) = @_;
		3500
		3501	$msg =~ s/\n//;
		3502
		3503	# limit the # of concurrent backtraces
		3504	if ($_log_backtrace < 2) {
		3505	++$_log_backtrace;
		3506	async {
		3507	my @bt = fork_call {
		3508	@addr = map { sprintf "%x", $_ } @addr;
		3509	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3510	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3511	or die "addr2line: $!";
		3512
		3513	my @funcs;
		3514	my @res = <$fh>;
		3515	chomp for @res;
		3516	while (@res) {
		3517	my ($func, $line) = splice @res, 0, 2, ();
		3518	push @funcs, "[$func] $line";
		3519	}
		3520
		3521	@funcs
		3522	};
		3523
		3524	LOG llevInfo, "[ABT] $msg\n";
		3525	LOG llevInfo, "[ABT] $_\n" for @bt;
		3526	--$_log_backtrace;
		3527	};
		3528	} else {
		3529	LOG llevInfo, "[ABT] $msg\n";
		3530	LOG llevInfo, "[ABT] [suppressed]\n";
		3531	}
		3532	}
		3533
		3534	# load additional modules
		3535	use cf::pod;
2221		3536
2222	END { cf::emergency_save }	3537	END { cf::emergency_save }
2223		3538
2224	1	3539	1
2225		3540

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