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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.128 by root, Wed Jan 3 00:28:47 2007 UTC vs.
Revision 1.354 by root, Sun Sep 2 12:26:54 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $DB_ENV;
46		86
47	our %CFG;	87	our %CFG;
48		88
49	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	90	our $RUNTIME;
51		91
		92	our %PLAYER; # all users
52	our %MAP; # all maps	93	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	94	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	95
55	our $RANDOM_MAPS = cf::localdir . "/random";	96	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
57		102
58	binmode STDOUT;	103	binmode STDOUT;
59	binmode STDERR;	104	binmode STDERR;
60		105
61	# read virtual server time, if available	106	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
66	}	111	}
67		112
68	mkdir cf::localdir;	113	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		115
74	# a special map that is always available	116	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		117
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	118	sub cf::map::normalise;
78		119
79	#############################################################################	120	#############################################################################
80		121
81	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
82		123
…		…
89	=item $cf::RUNTIME	130	=item $cf::RUNTIME
90		131
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	133	every server tick.
93		134
94	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		138
96	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
98		143
99	=item $cf::NOW	144	=item $cf::NOW
100		145
101	The time of the last (current) server tick.	146	The time of the last (current) server tick.
102		147
103	=item $cf::TICK	148	=item $cf::TICK
104		149
105	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
106		161
107	=item %cf::CFG	162	=item %cf::CFG
108		163
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
111		178
112	=back	179	=back
113		180
114	=cut	181	=cut
115		182
116	BEGIN {	183	BEGIN {
117	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	185	my $msg = join "", @_;
119	utf8::encode $msg;
120		186
121	$msg .= "\n"	187	$msg .= "\n"
122	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
123		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
125	};	194	};
126	}	195	}
127		196
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		204
135	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	206	# within the Safe compartment.
137	for my $pkg (qw(	207	for my $pkg (qw(
138	cf::global cf::attachable	208	cf::global cf::attachable
…		…
147		217
148	$Event::DIED = sub {	218	$Event::DIED = sub {
149	warn "error in event callback: @_";	219	warn "error in event callback: @_";
150	};	220	};
151		221
152	my %ext_pkg;	222	#############################################################################
153	my @exts;
154	my @hook;
155		223
156	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
157		225
158	=over 4	226	=over 4
159		227
160	=cut	228	=item dumpval $ref
161		229
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
163		250
164	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
165		252
166	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
167		254
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
176		256
177	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
178		258
179	=cut	259	=cut
180		260
181	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		262
186	=item my $guard = cf::guard { BLOCK }	263	sub to_json ($) { $json_coder->encode ($_[0]) }
187		264	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		265
208	=item cf::lock_wait $string	266	=item cf::lock_wait $string
209		267
210	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
211		269
212	=item my $lock = cf::lock_acquire $string	270	=item my $lock = cf::lock_acquire $string
213		271
214	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
217	returned.	275	returned.
218		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
219	Lock names should begin with a unique identifier (for example, find_map	280	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	281	uses map_find and cf::map::load uses map_load).
		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
221		286
222	=cut	287	=cut
223		288
224	our %LOCK;	289	our %LOCK;
225		290
…		…
239	# wait, to be sure we are not locked	304	# wait, to be sure we are not locked
240	lock_wait $key;	305	lock_wait $key;
241		306
242	$LOCK{$key} = [];	307	$LOCK{$key} = [];
243		308
244	cf::guard {	309	Coro::guard {
245	# wake up all waiters, to be on the safe side	310	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	311	$_->ready for @{ delete $LOCK{$key} };
247	}	312	}
248	}	313	}
249		314
		315	sub lock_active($) {
		316	my ($key) = @_;
		317
		318	! ! $LOCK{$key}
		319	}
		320
		321	sub freeze_mainloop {
		322	return unless $TICK_WATCHER->is_active;
		323
		324	my $guard = Coro::guard {
		325	$TICK_WATCHER->start;
		326	};
		327	$TICK_WATCHER->stop;
		328	$guard
		329	}
		330
		331	=item cf::get_slot $time[, $priority[, $name]]
		332
		333	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		334	This call blocks and returns only when you have at least C<$time> seconds
		335	of cpu time till the next tick. The slot is only valid till the next cede.
		336
		337	The optional C<$name> can be used to identify the job to run. It might be
		338	used for statistical purposes and should identify the same time-class.
		339
		340	Useful for short background jobs.
		341
		342	=cut
		343
		344	our @SLOT_QUEUE;
		345	our $SLOT_QUEUE;
		346
		347	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		348	$SLOT_QUEUE = Coro::async {
		349	my $signal = new Coro::Signal;
		350
		351	while () {
		352	next_job:
		353	my $avail = cf::till_tick;
		354	if ($avail > 0.01) {
		355	for (0 .. $#SLOT_QUEUE) {
		356	if ($SLOT_QUEUE[$_][0] < $avail) {
		357	my $job = splice @SLOT_QUEUE, $_, 1, ();
		358	$job->[2]->send;
		359	Coro::cede;
		360	goto next_job;
		361	}
		362	}
		363	}
		364
		365	if (@SLOT_QUEUE) {
		366	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		367	push @cf::WAIT_FOR_TICK, $signal;
		368	$signal->wait;
		369	} else {
		370	Coro::schedule;
		371	}
		372	}
		373	};
		374
		375	sub get_slot($;$$) {
		376	my ($time, $pri, $name) = @_;
		377
		378	$time = $TICK * .6 if $time > $TICK * .6;
		379	my $sig = new Coro::Signal;
		380
		381	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		382	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		383	$SLOT_QUEUE->ready;
		384	$sig->wait;
		385	}
		386
250	=item cf::async { BLOCK }	387	=item cf::async { BLOCK }
251		388
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	389	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	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.
254		392
255	=cut	393	=cut
256		394
257	sub async(&) {	395	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		396
266	=item cf::sync_job { BLOCK }	397	=item cf::sync_job { BLOCK }
267		398
268	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)
269	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
270	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.
271		403
272	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
273	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
274	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
275	fast or be very important.	407	fast or be very important.
…		…
278		410
279	sub sync_job(&) {	411	sub sync_job(&) {
280	my ($job) = @_;	412	my ($job) = @_;
281		413
282	if ($Coro::current == $Coro::main) {	414	if ($Coro::current == $Coro::main) {
		415	my $time = Event::time;
		416
283	# this is the main coro, too bad, we have to block	417	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	418	# till the operation succeeds, freezing the server :/
285		419
286	# TODO: use suspend/resume instead	420	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	421	# (but this is cancel-safe)
288	local $FREEZE = 1;	422	my $freeze_guard = freeze_mainloop;
289		423
290	my $busy = 1;	424	my $busy = 1;
291	my @res;	425	my @res;
292		426
293	(Coro::async {	427	(async {
294	@res = eval { $job->() };	428	@res = eval { $job->() };
295	warn $@ if $@;	429	warn $@ if $@;
296	undef $busy;	430	undef $busy;
297	})->prio (Coro::PRIO_MAX);	431	})->prio (Coro::PRIO_MAX);
298		432
299	while ($busy) {	433	while ($busy) {
300	Coro::cede_notself;	434	Coro::cede or Event::one_event;
301	Event::one_event unless Coro::nready;
302	}	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
303		443
304	wantarray ? @res : $res[0]	444	wantarray ? @res : $res[0]
305	} else {	445	} else {
306	# we are in another coroutine, how wonderful, everything just works	446	# we are in another coroutine, how wonderful, everything just works
307		447
308	$job->()	448	$job->()
309	}	449	}
310	}	450	}
311		451
312	=item $coro = cf::coro { BLOCK }	452	=item $coro = cf::async_ext { BLOCK }
313		453
314	Creates and returns a new coro. This coro is automcatially being canceled	454	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	455	extension calling this is being unloaded.
316		456
317	=cut	457	=cut
318		458
319	sub coro(&) {	459	sub async_ext(&) {
320	my $cb = shift;	460	my $cb = shift;
321		461
322	my $coro = &cf::async ($cb);	462	my $coro = &Coro::async ($cb);
323		463
324	$coro->on_destroy (sub {	464	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	465	delete $EXT_CORO{$coro+0};
326	});	466	});
327	$EXT_CORO{$coro+0} = $coro;	467	$EXT_CORO{$coro+0} = $coro;
328		468
329	$coro	469	$coro
330	}	470	}
331		471
332	sub write_runtime {	472	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		473
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	474	Executes the given code block with the given arguments in a seperate
336	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.
337		478
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	479	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		480
342	aio_fsync $fh	481	sub fork_call(&@) {
343	and return;	482	my ($cb, @args) = @_;
344		483
345	close $fh	484	# we seemingly have to make a local copy of the whole thing,
346	or return;	485	# otherwise perl prematurely frees the stuff :/
		486	# TODO: investigate and fix (liekly this will be rather laborious)
347		487
348	aio_rename "$runtime~", $runtime	488	my @res = Coro::Util::fork_eval {
349	and return;	489	reset_signals;
		490	&$cb
		491	}, @args;
350		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	};
351	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 });
352	}	621	}
353		622
354	=back	623	=back
355		624
356	=cut	625	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		626
478	#############################################################################	627	#############################################################################
479		628
480	=head2 ATTACHABLE OBJECTS	629	=head2 ATTACHABLE OBJECTS
481		630
…		…
483	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")
484	to it. All such attachable objects support the following methods.	633	to it. All such attachable objects support the following methods.
485		634
486	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>
487	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
488	crossfire+).	637	Crossfire TRT).
489		638
490	=over 4	639	=over 4
491		640
492	=item $attachable->attach ($attachment, key => $value...)	641	=item $attachable->attach ($attachment, key => $value...)
493		642
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	756	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	757	our @CB_MAP = ();
609		758
610	my %attachment;	759	my %attachment;
611		760
		761	sub cf::attachable::thawer_merge {
		762	# simply override everything except _meta
		763	local $_[0]{_meta};
		764	%{$_[0]} = %{$_[1]};
		765	}
		766
612	sub _attach_cb($$$$) {	767	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	768	my ($registry, $event, $prio, $cb) = @_;
614		769
615	use sort 'stable';	770	use sort 'stable';
616		771
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	805	$registry = $CB_TYPE[$object_type] ||= [];
651		806
652	} elsif ($type eq "subtype") {	807	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	808	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	809	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	810	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		811
657	} elsif ($type eq "package") {	812	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	813	my $pkg = shift @arg;
659		814
660	while (my ($name, $id) = each %cb_id) {	815	while (my ($name, $id) = each %cb_id) {
…		…
689	_attach $registry, $klass, @attach;	844	_attach $registry, $klass, @attach;
690	}	845	}
691		846
692	$obj->{$name} = \%arg;	847	$obj->{$name} = \%arg;
693	} else {	848	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	849	warn "object uses attachment '$name' which is not available, postponing.\n";
695	}	850	}
696		851
697	$obj->{_attachment}{$name} = undef;	852	$obj->{_attachment}{$name} = undef;
698	}	853	}
699		854
…		…
701	if (ref $_[0]) {	856	if (ref $_[0]) {
702	_object_attach @_;	857	_object_attach @_;
703	} else {	858	} else {
704	_attach shift->_attach_registry, @_;	859	_attach shift->_attach_registry, @_;
705	}	860	}
		861	_recalc_want;
706	};	862	};
707		863
708	# all those should be optimised	864	# all those should be optimised
709	sub cf::attachable::detach {	865	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	866	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	869	delete $obj->{_attachment}{$name};
714	reattach ($obj);	870	reattach ($obj);
715	} else {	871	} else {
716	Carp::croak "cannot, currently, detach class attachments";	872	Carp::croak "cannot, currently, detach class attachments";
717	}	873	}
		874	_recalc_want;
718	};	875	};
719		876
720	sub cf::attachable::attached {	877	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	878	my ($obj, $name) = @_;
722		879
…		…
737	";	894	";
738	die if $@;	895	die if $@;
739	}	896	}
740		897
741	our $override;	898	our $override;
742	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?
743		900
744	sub override {	901	sub override {
745	$override = 1;	902	$override = 1;
746	@invoke_results = ();	903	@INVOKE_RESULTS = (@_);
747	}	904	}
748		905
749	sub do_invoke {	906	sub do_invoke {
750	my $event = shift;	907	my $event = shift;
751	my $callbacks = shift;	908	my $callbacks = shift;
752		909
753	@invoke_results = ();	910	@INVOKE_RESULTS = ();
754		911
755	local $override;	912	local $override;
756		913
757	for (@$callbacks) {	914	for (@$callbacks) {
758	eval { &{$_->[1]} };	915	eval { &{$_->[1]} };
…		…
775		932
776	Generate an object-specific event with the given arguments.	933	Generate an object-specific event with the given arguments.
777		934
778	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
779	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
780	results (if you must, access C<@cf::invoke_results> directly).	937	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
781		938
782	=back	939	=back
783		940
784	=cut	941	=cut
785		942
786	#############################################################################	943	#############################################################################
787	# 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	}
788		956
789	sub reattach {	957	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	958	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	959	my ($obj) = @_;
		960
		961	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		962
793	my $registry = $obj->registry;	963	my $registry = $obj->registry;
794		964
795	@$registry = ();	965	@$registry = ();
796		966
…		…
843	$filename, length $$rdata, scalar @$objs;	1013	$filename, length $$rdata, scalar @$objs;
844		1014
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1015	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	1016	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1017	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	1018	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	1019	close $fh;
850		1020
851	if (@$objs) {	1021	if (@$objs) {
852	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) {
853	chmod SAVE_MODE, $fh;	1023	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	1024	my $data = Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	1025	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	1026	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	1027	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	1028	aio_rename "$filename.pst~", "$filename.pst";
859	}	1029	}
860	} else {	1030	} else {
861	aio_unlink "$filename.pst";	1031	aio_unlink "$filename.pst";
…		…
893	or return;	1063	or return;
894	$av = eval { (Storable::thaw $av)->{objs} };	1064	$av = eval { (Storable::thaw $av)->{objs} };
895	}	1065	}
896		1066
897	warn sprintf "loading %s (%d)\n",	1067	warn sprintf "loading %s (%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1068	$filename, length $data, scalar @{$av || []};
899	return ($data, $av);	1069	return ($data, $av);
900	}	1070	}
		1071
		1072	=head2 COMMAND CALLBACKS
		1073
		1074	=over 4
		1075
		1076	=cut
901		1077
902	#############################################################################	1078	#############################################################################
903	# command handling &c	1079	# command handling &c
904		1080
905	=item cf::register_command $name => \&callback($ob,$args);	1081	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1094	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1095	}
920		1096
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1097	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1098
923	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.
924		1104
925	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
926	called.	1106	called.
927		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
928	=cut	1119	=cut
929		1120
930	sub register_extcmd {	1121	sub register_extcmd {
931	my ($name, $cb) = @_;	1122	my ($name, $cb) = @_;
932		1123
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1124	$EXTCMD{$name} = $cb;
		1125	}
		1126
		1127	sub register_exticmd {
		1128	my ($name, $cb) = @_;
		1129
		1130	$EXTICMD{$name} = $cb;
937	}	1131	}
938		1132
939	cf::player->attach (	1133	cf::player->attach (
940	on_command => sub {	1134	on_command => sub {
941	my ($pl, $name, $params) = @_;	1135	my ($pl, $name, $params) = @_;
…		…
950	cf::override;	1144	cf::override;
951	},	1145	},
952	on_extcmd => sub {	1146	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1147	my ($pl, $buf) = @_;
954		1148
955	my $msg = eval { from_json $buf };	1149	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1150
957	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
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1159	if (my $cb = $EXTCMD{$type}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1160	@reply = $cb->($pl, @payload);
960	$pl->ext_reply ($msg->{msgid}, %reply);
961	}
962	}	1161	}
		1162
		1163	$pl->ext_reply ($reply, @reply)
		1164	if $reply;
		1165
963	} else {	1166	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1167	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
965	}	1168	}
966		1169
967	cf::override;	1170	cf::override;
968	},	1171	},
969	);	1172	);
970		1173
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	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($) {
978	my ($path) = @_;	1552	my ($path) = @_;
979		1553
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1554	my ($match, $specificity);
981	my $base = $1;
982	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985		1555
986	warn "loading '$path' into '$pkg'\n";	1556	for my $region (list) {
987		1557	if ($region->{match} && $path =~ $region->{match}) {
988	open my $fh, "<:utf8", $path	1558	($match, $specificity) = ($region, $region->specificity)
989	or die "$path: $!";	1559	if $region->specificity > $specificity;
990		1560	}
991	my $source =
992	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })
995	. "\n};\n1";
996
997	eval $source
998	or die $@ ? "$path: $@\n"
999	: "extension disabled.\n";
1000
1001	push @exts, $pkg;
1002	$ext_pkg{$base} = $pkg;
1003
1004	# no strict 'refs';
1005	# @{"$pkg\::ISA"} = ext::;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	1561	}
1020		1562
1021	# remove commands	1563	$match
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}
1046
1047	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;
1050	eval {
1051	load_extension $ext;
1052	1
1053	} or warn "$ext not loaded: $@";
1054	}
1055	}
1056
1057	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094
1095	=head2 CORE EXTENSIONS
1096
1097	Functions and methods that extend core crossfire objects.
1098
1099	=head3 cf::player
1100
1101	=over 4
1102
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut
1108
1109	sub cf::player::exists($) {
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)
1115
1116	Sends an ext reply to the player.
1117
1118	=cut
1119
1120	sub cf::player::ext_reply($$$%) {
1121	my ($self, $id, %msg) = @_;
1122
1123	$msg{msgid} = $id;
1124
1125	$self->send ("ext " . to_json \%msg);
1126	}	1564	}
1127		1565
1128	=back	1566	=back
1129
1130		1567
1131	=head3 cf::map	1568	=head3 cf::map
1132		1569
1133	=over 4	1570	=over 4
1134		1571
…		…
1137	package cf::map;	1574	package cf::map;
1138		1575
1139	use Fcntl;	1576	use Fcntl;
1140	use Coro::AIO;	1577	use Coro::AIO;
1141		1578
		1579	use overload
		1580	'""' => \&as_string,
		1581	fallback => 1;
		1582
1142	our $MAX_RESET = 7200;	1583	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1584	our $DEFAULT_RESET = 3000;
1144		1585
1145	sub generate_random_map {	1586	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1587	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1588	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1589	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1590	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1591	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1592	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1593	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1594	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1595	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1596	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1597	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$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},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1599	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(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"
1162	}	1729	}
1163		1730
1164	# and all this just because we cannot iterate over	1731	# and all this just because we cannot iterate over
1165	# all maps in C++...	1732	# all maps in C++...
1166	sub change_all_map_light {	1733	sub change_all_map_light {
…		…
1168		1735
1169	$_->change_map_light ($change)	1736	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1737	for grep $_->outdoor, values %cf::MAP;
1171	}	1738	}
1172		1739
		1740	sub decay_objects {
		1741	my ($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
1173	sub try_load_header($) {	1756	sub load_header_from($) {
1174	my ($path) = @_;	1757	my ($self, $path) = @_;
1175		1758
1176	utf8::encode $path;	1759	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1760	#aio_open $path, O_RDONLY, 0
		1761	# or return;
		1762
		1763	$self->_load_header ($path)
1178	or return;	1764	or return;
1179		1765
1180	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
1181	or return;	1809	or return;
		1810	$self->prepare_orig;
		1811	}
1182		1812
1183	$map->load_header ($path)	1813	$self->{deny_reset} = 1
1184	or return;	1814	if $self->no_reset;
1185		1815
1186	$map->{load_path} = $path;	1816	$self->default_region (cf::region::find_by_path $self->{path})
		1817	unless $self->default_region;
1187		1818
1188	$map	1819	1
1189	}	1820	}
1190		1821
1191	sub find_map;	1822	sub find;
1192	sub find_map {	1823	sub find {
1193	my ($path, $origin) = @_;	1824	my ($path, $origin) = @_;
1194		1825
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1826	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1827
1200	cf::lock_wait "map_find:$key";	1828	cf::lock_wait "map_find:$path";
1201		1829
1202	$cf::MAP{$key} || do {	1830	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1831	my $guard = cf::lock_acquire "map_find:$path";
1204		1832	my $map = new_from_path cf::map $path
1205	# do it the slow way
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1833	or return;
1220		1834
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1835	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1836
1234	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;
1235	$map->reset;	1843	$map->reset;
1236	undef $guard;	1844	undef $guard;
1237	$map = find_map $path	1845	return find $path;
1238	or return;
1239	}	1846	}
1240		1847
1241	$cf::MAP{$key} = $map	1848	$cf::MAP{$path} = $map
1242	}	1849	}
1243	}	1850	}
		1851
		1852	sub pre_load { }
		1853	sub post_load { }
1244		1854
1245	sub load {	1855	sub load {
1246	my ($self) = @_;	1856	my ($self) = @_;
1247		1857
		1858	local $self->{deny_reset} = 1; # loading can take a long time
		1859
1248	my $path = $self->{path};	1860	my $path = $self->{path};
		1861
		1862	{
		1863	my $guard1 = cf::lock_acquire "map_data:$path";
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1864	my $guard2 = cf::lock_acquire "map_load:$path";
1250		1865
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1866	return if $self->in_memory != cf::MAP_SWAPPED;
1252		1867
1253	$self->in_memory (cf::MAP_LOADING);	1868	$self->in_memory (cf::MAP_LOADING);
1254		1869
1255	$self->alloc;	1870	$self->alloc;
		1871
		1872	$self->pre_load;
		1873	cf::cede_to_tick;
		1874
1256	$self->load_objects ($self->{load_path}, 1)	1875	$self->_load_objects ($self->{load_path}, 1)
1257	or return;	1876	or return;
1258		1877
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1878	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1879	if delete $self->{load_original};
1261		1880
1262	if (my $uniq = $path->uniq_path) {	1881	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1882	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1883	if (aio_open $uniq, O_RDONLY, 0) {
1265	$self->clear_unique_items;	1884	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1885	$self->_load_objects ($uniq, 0);
1267	}	1886	}
1268	}	1887	}
1269		1888
		1889	cf::cede_to_tick;
1270	# now do the right thing for maps	1890	# now do the right thing for maps
1271	$self->link_multipart_objects;	1891	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	1892	$self->difficulty ($self->estimate_difficulty)
1282	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;
1283	$self->activate;	1903	$self->activate;
1284	}	1904	}
1285		1905
		1906	$self->{last_save} = $cf::RUNTIME;
		1907	$self->last_access ($cf::RUNTIME);
		1908
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1909	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	1910	}
1288		1911
1289	sub load_map_sync {	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	$neigh->load;
		1950	}
		1951	}
		1952
		1953	sub find_sync {
1290	my ($path, $origin) = @_;	1954	my ($path, $origin) = @_;
1291		1955
1292	#warn "load_map_sync<$path, $origin>\n";#d#	1956	cf::sync_job { find $path, $origin }
		1957	}
1293		1958
1294	cf::sync_job {	1959	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	1960	my ($map) = @_;
1296	or return;	1961
1297	$map->load;	1962	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1298	$map	1963	if $Coro::current == $Coro::main;
		1964
		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;
1299	}	1993	};
		1994	$MAP_PREFETCHER->prio (6);
		1995
		1996	()
1300	}	1997	}
1301		1998
1302	sub save {	1999	sub save {
1303	my ($self) = @_;	2000	my ($self) = @_;
1304		2001
		2002	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2003
1305	$self->{last_save} = $cf::RUNTIME;	2004	$self->{last_save} = $cf::RUNTIME;
1306		2005
1307	return unless $self->dirty;	2006	return unless $self->dirty;
1308		2007
1309	my $save = $self->{path}->save_path; utf8::encode $save;	2008	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2009	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		2010
1312	$self->{load_path} = $save;	2011	$self->{load_path} = $save;
1313		2012
1314	return if $self->{deny_save};	2013	return if $self->{deny_save};
1315		2014
		2015	local $self->{last_access} = $self->last_access;#d#
		2016
		2017	cf::async {
		2018	$_->contr->save for $self->players;
		2019	};
		2020
1316	if ($uniq) {	2021	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2022	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	2023	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	2024	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2025	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	2026	}
1322	}	2027	}
1323		2028
1324	sub swap_out {	2029	sub swap_out {
1325	my ($self) = @_;	2030	my ($self) = @_;
		2031
		2032	# save first because save cedes
		2033	$self->save;
		2034
		2035	my $lock = cf::lock_acquire "map_data:$self->{path}";
1326		2036
1327	return if $self->players;	2037	return if $self->players;
1328	return if $self->in_memory != cf::MAP_IN_MEMORY;	2038	return if $self->in_memory != cf::MAP_IN_MEMORY;
1329	return if $self->{deny_save};	2039	return if $self->{deny_save};
1330		2040
1331	$self->save;
1332	$self->clear;	2041	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);	2042	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2043	}
1335		2044
1336	sub reset_at {	2045	sub reset_at {
1337	my ($self) = @_;	2046	my ($self) = @_;
1338		2047
1339	# TODO: safety, remove and allow resettable per-player maps	2048	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2049	return 1e99 if $self->{deny_reset};
1342		2050
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2051	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2052	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2053
…		…
1350	my ($self) = @_;	2058	my ($self) = @_;
1351		2059
1352	$self->reset_at <= $cf::RUNTIME	2060	$self->reset_at <= $cf::RUNTIME
1353	}	2061	}
1354		2062
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2063	sub reset {
1377	my ($self) = @_;	2064	my ($self) = @_;
1378		2065
		2066	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2067
1379	return if $self->players;	2068	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		2069
1382	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	}
1383		2081
1384	delete $cf::MAP{$self->path};	2082	delete $cf::MAP{$self->path};
		2083
		2084	$self->clear;
1385		2085
1386	$_->clear_links_to ($self) for values %cf::MAP;	2086	$_->clear_links_to ($self) for values %cf::MAP;
1387		2087
1388	$self->unlink_save;	2088	$self->unlink_save;
1389	$self->destroy;	2089	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	2092	my $nuke_counter = "aaaa";
1393		2093
1394	sub nuke {	2094	sub nuke {
1395	my ($self) = @_;	2095	my ($self) = @_;
1396		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};
1397	$self->{deny_save} = 1;	2106	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2107	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2108	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2109
		2110	$cf::MAP{$self->path} = $self;
		2111	}
		2112
1400	$self->reset; # polite request, might not happen	2113	$self->reset; # polite request, might not happen
1401	}	2114	}
1402		2115
1403	sub customise_for {	2116	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2117
1406	if ($map->per_player) {	2118	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2119	maps. May block.
		2120
		2121	=cut
		2122
		2123	sub tmp_maps() {
1408	}	2124	[
1409		2125	map {
1410	$map	2126	utf8::decode $_;
		2127	/\.map$/
		2128	? normalise $_
		2129	: ()
		2130	} @{ aio_readdir $TMPDIR or [] }
		2131	]
1411	}	2132	}
1412		2133
1413	sub emergency_save {	2134	=item $maps = cf::map::random_maps
1414	local $cf::FREEZE = 1;
1415		2135
1416	warn "enter emergency map save\n";	2136	Returns an arrayref with all map paths of currently instantiated and saved
		2137	random maps. May block.
1417		2138
1418	cf::sync_job {	2139	=cut
1419	warn "begin emergency map save\n";
1420	$_->save for values %cf::MAP;
1421	};
1422		2140
1423	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	]
1424	}	2168	}
1425		2169
1426	package cf;	2170	package cf;
1427		2171
1428	=back	2172	=back
1429		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
1430		2200
1431	=head3 cf::object::player	2201	=head3 cf::object::player
1432		2202
1433	=over 4	2203	=over 4
1434		2204
…		…
1448		2218
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2219	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2220
1451	if ($self->{record_replies}) {	2221	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2222	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2223
1453	} 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 {
1454	$msg = $npc->name . " says: $msg" if $npc;	2232	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2233	$self->message ($msg, $flags);
		2234	}
1456	}	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 (@_);
1457	}	2246	}
1458		2247
1459	=item $player_object->may ("access")	2248	=item $player_object->may ("access")
1460		2249
1461	Returns wether the given player is authorized to access resource "access"	2250	Returns wether the given player is authorized to access resource "access"
…		…
1474		2263
1475	=item $player_object->enter_link	2264	=item $player_object->enter_link
1476		2265
1477	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}>).
1478		2267
1479	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
1480	I<MUST> call C<leave_link> as soon as possible, though.	2269	I<MUST> call C<leave_link> as soon as possible, though.
1481		2270
		2271	Will never block.
		2272
1482	=item $player_object->leave_link ($map, $x, $y)	2273	=item $player_object->leave_link ($map, $x, $y)
1483		2274
1484	Moves the player out of the specila link map onto the given map. If the	2275	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2276	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2277	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2278	fails, to the emergency map position.
1488		2279
1489	Might block.	2280	Might block.
1490		2281
1491	=cut	2282	=cut
		2283
		2284	sub link_map {
		2285	unless ($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	$LINK_MAP
		2292	}
1492		2293
1493	sub cf::object::player::enter_link {	2294	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2295	my ($self) = @_;
1495		2296
1496	$self->deactivate_recursive;	2297	$self->deactivate_recursive;
1497		2298
1498	return if $self->map == $LINK_MAP;	2299	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2300
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2301	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2302	if $self->map && $self->map->{path} ne "{link}";
1502		2303
1503	$self->enter_map ($LINK_MAP, 20, 20);	2304	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2305	}
1505		2306
1506	sub cf::object::player::leave_link {	2307	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2308	my ($self, $map, $x, $y) = @_;
		2309
		2310	return unless $self->contr->active;
1508		2311
1509	my $link_pos = delete $self->{_link_pos};	2312	my $link_pos = delete $self->{_link_pos};
1510		2313
1511	unless ($map) {	2314	unless ($map) {
1512	# restore original map position	2315	# restore original map position
1513	($map, $x, $y) = @{ $link_pos || [] };	2316	($map, $x, $y) = @{ $link_pos || [] };
1514	$map = cf::map::find_map $map;	2317	$map = cf::map::find $map;
1515		2318
1516	unless ($map) {	2319	unless ($map) {
1517	($map, $x, $y) = @$EMERGENCY_POSITION;	2320	($map, $x, $y) = @$EMERGENCY_POSITION;
1518	$map = cf::map::find_map $map	2321	$map = cf::map::find $map
1519	or die "FATAL: cannot load emergency map\n";	2322	or die "FATAL: cannot load emergency map\n";
1520	}	2323	}
1521	}	2324	}
1522		2325
1523	($x, $y) = (-1, -1)	2326	($x, $y) = (-1, -1)
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2329	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2330	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2331	if $x <=0 && $y <= 0;
1529		2332
1530	$map->load;	2333	$map->load;
		2334	$map->load_neighbours;
1531		2335
		2336	return unless $self->contr->active;
1532	$self->activate_recursive;	2337	$self->activate_recursive;
		2338
		2339	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2340	$self->enter_map ($map, $x, $y);
1534	}	2341	}
1535		2342
1536	cf::player->attach (	2343	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1537	on_logout => sub {
1538	my ($pl) = @_;
1539		2344
1540	# abort map switching before logout	2345	Moves the player to the given map-path and coordinates by first freezing
1541	if ($pl->ob->{_link_pos}) {	2346	her, loading and preparing them map, calling the provided $check callback
1542	cf::sync_job {	2347	that has to return the map if sucecssful, and then unfreezes the player on
1543	$pl->ob->leave_link	2348	the new (success) or old (failed) map position. In either case, $done will
1544	};	2349	be called at the end of this process.
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549		2350
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto_map ($path, $x, $y)
1565
1566	=cut	2351	=cut
1567		2352
		2353	our $GOTOGEN;
		2354
1568	sub cf::object::player::goto_map {	2355	sub cf::object::player::goto {
1569	my ($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;
1570		2360
1571	$self->enter_link;	2361	$self->enter_link;
1572		2362
1573	(cf::async {	2363	(async {
1574	$path = new cf::path $path;	2364	my $map = eval {
1575
1576	my $map = cf::map::find_map $path->as_string;	2365	my $map = cf::map::find $path;
		2366
		2367	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2368	$map = $map->customise_for ($self);
1578		2369	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2370	} else {
1580	# if $map;
1581
1582	$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	}
1583		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};
1584	$self->leave_link ($map, $x, $y);	2384	$self->leave_link ($map, $x, $y);
		2385	}
		2386
		2387	$done->() if $done;
1585	})->prio (1);	2388	})->prio (1);
1586	}	2389	}
1587		2390
1588	=item $player_object->enter_exit ($exit_object)	2391	=item $player_object->enter_exit ($exit_object)
1589		2392
…		…
1591		2394
1592	sub parse_random_map_params {	2395	sub parse_random_map_params {
1593	my ($spec) = @_;	2396	my ($spec) = @_;
1594		2397
1595	my $rmp = { # defaults	2398	my $rmp = { # defaults
1596	xsize => 10,	2399	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2400	ysize => (cf::rndm 15, 40),
		2401	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2402	#layout => string,
1598	};	2403	};
1599		2404
1600	for (split /\n/, $spec) {	2405	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2406	my ($k, $v) = split /\s+/, $_, 2;
1602		2407
…		…
1606	$rmp	2411	$rmp
1607	}	2412	}
1608		2413
1609	sub prepare_random_map {	2414	sub prepare_random_map {
1610	my ($exit) = @_;	2415	my ($exit) = @_;
		2416
		2417	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2418
1612	# all this does is basically replace the /! path by	2419	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2420	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2421	# that depends on the exit object
1615		2422
1616	my $rmp = parse_random_map_params $exit->msg;	2423	my $rmp = parse_random_map_params $exit->msg;
1617		2424
1618	if ($exit->map) {	2425	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2426	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2427	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2428	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2429	$rmp->{origin_y} = $exit->y;
1623	}	2430	}
1624		2431
1625	$rmp->{random_seed} ||= $exit->random_seed;	2432	$rmp->{random_seed} ||= $exit->random_seed;
1626		2433
1627	my $data = cf::to_json $rmp;	2434	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2435	my $md5 = Digest::MD5::md5_hex $data;
		2436	my $meta = "$RANDOMDIR/$md5.meta";
1629		2437
1630	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) {
1631	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;
1632		2442
1633	$exit->slaying ("?random/$md5");	2443	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2444	$exit->msg (undef);
1635	}	2445	}
1636	}	2446	}
…		…
1638	sub cf::object::player::enter_exit {	2448	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2449	my ($self, $exit) = @_;
1640		2450
1641	return unless $self->type == cf::PLAYER;	2451	return unless $self->type == cf::PLAYER;
1642		2452
		2453	if ($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
1643	$self->enter_link;	2464	$self->enter_link;
1644		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
1645	(cf::async {	2470	(async {
		2471	$self->deactivate_recursive; # just to be sure
1646	unless (eval {	2472	unless (eval {
1647	prepare_random_map $exit	2473	$self->goto ($slaying, $hp, $sp);
1648	if $exit->slaying eq "/!";
1649
1650	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1651	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1652		2474
1653	1;	2475	1;
1654	}) {	2476	}) {
1655	$self->message ("Something went wrong deep within the crossfire server. "	2477	$self->message ("Something went wrong deep within the crossfire server. "
1656	. "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. "
1657	. "Please report this to the dungeon master",	2479	. "Please report this to the dungeon master!",
1658	cf::NDI_UNIQUE | cf::NDI_RED);	2480	cf::NDI_UNIQUE | cf::NDI_RED);
1659		2481
1660	warn "ERROR in enter_exit: $@";	2482	warn "ERROR in enter_exit: $@";
1661	$self->leave_link;	2483	$self->leave_link;
1662	}	2484	}
1663	})->prio (1);	2485	})->prio (1);
…		…
1676		2498
1677	sub cf::client::send_drawinfo {	2499	sub cf::client::send_drawinfo {
1678	my ($self, $text, $flags) = @_;	2500	my ($self, $text, $flags) = @_;
1679		2501
1680	utf8::encode $text;	2502	utf8::encode $text;
1681	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2503	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1682	}	2504	}
1683		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	}
1684		2621
1685	=item $success = $client->query ($flags, "text", \&cb)	2622	=item $success = $client->query ($flags, "text", \&cb)
1686		2623
1687	Queues a query to the client, calling the given callback with	2624	Queues a query to the client, calling the given callback with
1688	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>,
1689	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>.
1690		2627
1691	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
1692	reliable at some point in the future.	2629	become reliable at some point in the future.
1693		2630
1694	=cut	2631	=cut
1695		2632
1696	sub cf::client::query {	2633	sub cf::client::query {
1697	my ($self, $flags, $text, $cb) = @_;	2634	my ($self, $flags, $text, $cb) = @_;
…		…
1705	utf8::encode $text;	2642	utf8::encode $text;
1706	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2643	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1707		2644
1708	$self->send_packet ($self->{query_queue}[0][0])	2645	$self->send_packet ($self->{query_queue}[0][0])
1709	if @{ $self->{query_queue} } == 1;	2646	if @{ $self->{query_queue} } == 1;
		2647
		2648	1
1710	}	2649	}
1711		2650
1712	cf::client->attach (	2651	cf::client->attach (
		2652	on_connect => sub {
		2653	my ($ns) = @_;
		2654
		2655	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2656	},
1713	on_reply => sub {	2657	on_reply => sub {
1714	my ($ns, $msg) = @_;	2658	my ($ns, $msg) = @_;
1715		2659
1716	# this weird shuffling is so that direct followup queries	2660	# this weird shuffling is so that direct followup queries
1717	# get handled first	2661	# get handled first
1718	my $queue = delete $ns->{query_queue}	2662	my $queue = delete $ns->{query_queue}
1719	or return; # be conservative, not sure how that cna happen, but we saw a crash here	2663	or return; # be conservative, not sure how that can happen, but we saw a crash here
1720		2664
1721	(shift @$queue)->[1]->($msg);	2665	(shift @$queue)->[1]->($msg);
		2666	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1722		2667
1723	push @{ $ns->{query_queue} }, @$queue;	2668	push @{ $ns->{query_queue} }, @$queue;
1724		2669
1725	if (@{ $ns->{query_queue} } == @$queue) {	2670	if (@{ $ns->{query_queue} } == @$queue) {
1726	if (@$queue) {	2671	if (@$queue) {
…		…
1728	} else {	2673	} else {
1729	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2674	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1730	}	2675	}
1731	}	2676	}
1732	},	2677	},
		2678	on_exticmd => sub {
		2679	my ($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	},
1733	);	2704	);
1734		2705
1735	=item $client->coro (\&cb)	2706	=item $client->async (\&cb)
1736		2707
1737	Create a new coroutine, running the specified callback. The coroutine will	2708	Create a new coroutine, running the specified callback. The coroutine will
1738	be automatically cancelled when the client gets destroyed (e.g. on logout,	2709	be automatically cancelled when the client gets destroyed (e.g. on logout,
1739	or loss of connection).	2710	or loss of connection).
1740		2711
1741	=cut	2712	=cut
1742		2713
1743	sub cf::client::coro {	2714	sub cf::client::async {
1744	my ($self, $cb) = @_;	2715	my ($self, $cb) = @_;
1745		2716
1746	my $coro = &cf::async ($cb);	2717	my $coro = &Coro::async ($cb);
1747		2718
1748	$coro->on_destroy (sub {	2719	$coro->on_destroy (sub {
1749	delete $self->{_coro}{$coro+0};	2720	delete $self->{_coro}{$coro+0};
1750	});	2721	});
1751		2722
…		…
1778	our $safe = new Safe "safe";	2749	our $safe = new Safe "safe";
1779	our $safe_hole = new Safe::Hole;	2750	our $safe_hole = new Safe::Hole;
1780		2751
1781	$SIG{FPE} = 'IGNORE';	2752	$SIG{FPE} = 'IGNORE';
1782		2753
1783	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2754	$safe->permit_only (Opcode::opset qw(
		2755	:base_core :base_mem :base_orig :base_math
		2756	grepstart grepwhile mapstart mapwhile
		2757	sort time
		2758	));
1784		2759
1785	# here we export the classes and methods available to script code	2760	# here we export the classes and methods available to script code
1786		2761
1787	=pod	2762	=pod
1788		2763
1789	The following fucntions and emthods are available within a safe environment:	2764	The following functions and methods are available within a safe environment:
1790		2765
1791	cf::object contr pay_amount pay_player map	2766	cf::object
		2767	contr pay_amount pay_player map x y force_find force_add
		2768	insert remove name archname title slaying race decrease_ob_nr
		2769
1792	cf::object::player player	2770	cf::object::player
1793	cf::player peaceful	2771	player
1794	cf::map trigger	2772
		2773	cf::player
		2774	peaceful
		2775
		2776	cf::map
		2777	trigger
1795		2778
1796	=cut	2779	=cut
1797		2780
1798	for (	2781	for (
1799	["cf::object" => qw(contr pay_amount pay_player map)],	2782	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2783	insert remove inv name archname title slaying race
		2784	decrease_ob_nr)],
1800	["cf::object::player" => qw(player)],	2785	["cf::object::player" => qw(player)],
1801	["cf::player" => qw(peaceful)],	2786	["cf::player" => qw(peaceful)],
1802	["cf::map" => qw(trigger)],	2787	["cf::map" => qw(trigger)],
1803	) {	2788	) {
1804	no strict 'refs';	2789	no strict 'refs';
…		…
1875	=back	2860	=back
1876		2861
1877	=cut	2862	=cut
1878		2863
1879	#############################################################################	2864	#############################################################################
		2865	# the server's init and main functions
1880		2866
1881	=head2 EXTENSION DATABASE SUPPORT	2867	sub load_facedata($) {
		2868	my ($path) = @_;
1882		2869
1883	Crossfire maintains a very simple database for extension use. It can	2870	# HACK to clear player env face cache, we need some signal framework
1884	currently store anything that can be serialised using Storable, which	2871	# for this (global event?)
1885	excludes objects.	2872	%ext::player_env::MUSIC_FACE_CACHE = ();
1886		2873
1887	The parameter C<$family> should best start with the name of the extension	2874	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1888	using it, it should be unique.
1889		2875
1890	=over 4	2876	warn "loading facedata from $path\n";
1891		2877
1892	=item $hashref = cf::db_get $family	2878	my $facedata;
		2879	0 < aio_load $path, $facedata
		2880	or die "$path: $!";
1893		2881
1894	Return a hashref for use by the extension C<$family>, which can be	2882	$facedata = Coro::Storable::thaw $facedata;
1895	modified. After modifications, you have to call C<cf::db_dirty> or
1896	C<cf::db_sync>.
1897		2883
1898	=item $value = cf::db_get $family => $key	2884	$facedata->{version} == 2
		2885	or cf::cleanup "$path: version mismatch, cannot proceed.";
1899		2886
1900	Returns a single value from the database	2887	# patch in the exptable
1901		2888	$facedata->{resource}{"res/exp_table"} = {
1902	=item cf::db_put $family => $hashref	2889	type => FT_RSRC,
1903		2890	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1904	Stores the given family hashref into the database. Updates are delayed, if
1905	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1906
1907	=item cf::db_put $family => $key => $value
1908
1909	Stores the given C<$value> in the family hash. Updates are delayed, if you
1910	want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_dirty
1913
1914	Marks the database as dirty, to be updated at a later time.
1915
1916	=item cf::db_sync
1917
1918	Immediately write the database to disk I<if it is dirty>.
1919
1920	=cut
1921
1922	our $DB;
1923
1924	{
1925	my $path = cf::localdir . "/database.pst";
1926
1927	sub db_load() {
1928	$DB = stat $path ? Storable::retrieve $path : { };
1929	}
1930
1931	my $pid;
1932
1933	sub db_save() {
1934	waitpid $pid, 0 if $pid;
1935	if (0 == ($pid = fork)) {
1936	$DB->{_meta}{version} = 1;
1937	Storable::nstore $DB, "$path~";
1938	rename "$path~", $path;
1939	cf::_exit 0 if defined $pid;
1940	}
1941	}
1942
1943	my $dirty;
1944
1945	sub db_sync() {
1946	db_save if $dirty;
1947	undef $dirty;
1948	}
1949
1950	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1951	db_sync;
1952	});	2891	};
		2892	cf::cede_to_tick;
1953		2893
1954	sub db_dirty() {
1955	$dirty = 1;
1956	$idle->start;
1957	}	2894	{
		2895	my $faces = $facedata->{faceinfo};
1958		2896
1959	sub db_get($;$) {	2897	while (my ($face, $info) = each %$faces) {
1960	@_ >= 2	2898	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1961	? $DB->{$_[0]}{$_[1]}	2899	cf::face::set_visibility $idx, $info->{visibility};
1962	: ($DB->{$_[0]} ||= { })	2900	cf::face::set_magicmap $idx, $info->{magicmap};
1963	}	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};
1964		2903
1965	sub db_put($$;$) {	2904	cf::cede_to_tick;
1966	if (@_ >= 3) {
1967	$DB->{$_[0]}{$_[1]} = $_[2];
1968	} else {
1969	$DB->{$_[0]} = $_[1];
1970	}
1971	db_dirty;
1972	}
1973
1974	cf::global->attach (
1975	prio => 10000,
1976	on_cleanup => sub {
1977	db_sync;
1978	},	2905	}
1979	);
1980	}
1981		2906
1982	#############################################################################	2907	while (my ($face, $info) = each %$faces) {
1983	# 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	}
1984		2917
1985	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 {
1986	open my $fh, "<:utf8", cf::confdir . "/config"	3044	open my $fh, "<:utf8", "$CONFDIR/config"
1987	or return;	3045	or return;
1988		3046
1989	local $/;	3047	local $/;
1990	*CFG = YAML::Syck::Load <$fh>;	3048	*CFG = YAML::Syck::Load <$fh>;
		3049
		3050	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		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
		3055	if (exists $CFG{mlockall}) {
		3056	eval {
		3057	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3058	and die "WARNING: m(un)lockall failed: $!\n";
		3059	};
		3060	warn $@ if $@;
		3061	}
1991	}	3062	}
1992		3063
1993	sub main {	3064	sub main {
1994	# we must not ever block the main coroutine	3065	# we must not ever block the main coroutine
1995	local $Coro::idle = sub {	3066	local $Coro::idle = sub {
1996	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#
1997	(Coro::unblock_sub {	3068	(async {
1998	Event::one_event;	3069	Event::one_event;
1999	})->();	3070	})->prio (Coro::PRIO_MAX);
2000	};	3071	};
2001		3072
2002	cfg_load;	3073	reload_config;
2003	db_load;	3074	db_init;
2004	load_extensions;	3075	load_extensions;
		3076
		3077	$TICK_WATCHER->start;
2005	Event::loop;	3078	Event::loop;
2006	}	3079	}
2007		3080
2008	#############################################################################	3081	#############################################################################
2009	# initialisation	3082	# initialisation and cleanup
2010		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
2011	sub reload() {	3177	sub do_reload_perl() {
2012	# can/must only be called in main	3178	# can/must only be called in main
2013	if ($Coro::current != $Coro::main) {	3179	if ($Coro::current != $Coro::main) {
2014	warn "can only reload from main coroutine\n";	3180	warn "can only reload from main coroutine";
2015	return;	3181	return;
2016	}	3182	}
2017		3183
2018	warn "reloading...";	3184	warn "reloading...";
2019		3185
2020	local $FREEZE = 1;	3186	warn "entering sync_job";
		3187
		3188	cf::sync_job {
		3189	cf::write_runtime; # external watchdog should not bark
2021	cf::emergency_save;	3190	cf::emergency_save;
		3191	cf::write_runtime; # external watchdog should not bark
2022		3192
2023	eval {	3193	warn "syncing database to disk";
		3194	BDB::db_env_txn_checkpoint $DB_ENV;
		3195
2024	# 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
2025		3197
2026	# cancel all watchers	3198	warn "cancelling all WF_AUTOCANCEL watchers";
2027	for (Event::all_watchers) {	3199	for (Event::all_watchers) {
2028	$_->cancel if $_->data & WF_AUTOCANCEL;	3200	$_->cancel if $_->data & WF_AUTOCANCEL;
2029	}	3201	}
2030		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
2031	# cancel all extension coros	3214	warn "cancelling all extension coros";
2032	$_->cancel for values %EXT_CORO;	3215	$_->cancel for values %EXT_CORO;
2033	%EXT_CORO = ();	3216	%EXT_CORO = ();
2034		3217
2035	# unload all extensions	3218	warn "removing commands";
2036	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) {
2037	warn "unloading <$_>";	3227	warn "... unloading $pkg";
2038	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: $@";
2039	}	3234	}
2040		3235
		3236	warn "... nuking $pkg";
		3237	Symbol::delete_package $pkg;
		3238	}
		3239
2041	# unload all modules loaded from $LIBDIR	3240	warn "unloading all perl modules loaded from $LIBDIR";
2042	while (my ($k, $v) = each %INC) {	3241	while (my ($k, $v) = each %INC) {
2043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3242	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044		3243
2045	warn "removing <$k>";	3244	warn "... unloading $k";
2046	delete $INC{$k};	3245	delete $INC{$k};
2047		3246
2048	$k =~ s/\.pm$//;	3247	$k =~ s/\.pm$//;
2049	$k =~ s/\//::/g;	3248	$k =~ s/\//::/g;
2050		3249
…		…
2053	}	3252	}
2054		3253
2055	Symbol::delete_package $k;	3254	Symbol::delete_package $k;
2056	}	3255	}
2057		3256
2058	# sync database to disk
2059	cf::db_sync;
2060	IO::AIO::flush;
2061
2062	# get rid of safe::, as good as possible	3257	warn "getting rid of safe::, as good as possible";
2063	Symbol::delete_package "safe::$_"	3258	Symbol::delete_package "safe::$_"
2064	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);
2065		3260
2066	# remove register_script_function callbacks
2067	# TODO
2068
2069	# unload cf.pm "a bit"	3261	warn "unloading cf.pm \"a bit\"";
2070	delete $INC{"cf.pm"};	3262	delete $INC{"cf.pm"};
		3263	delete $INC{"cf/pod.pm"};
2071		3264
2072	# don't, removes xs symbols, too,	3265	# don't, removes xs symbols, too,
2073	# and global variables created in xs	3266	# and global variables created in xs
2074	#Symbol::delete_package __PACKAGE__;	3267	#Symbol::delete_package __PACKAGE__;
2075		3268
2076	# reload cf.pm	3269	warn "unload completed, starting to reload now";
		3270
2077	warn "reloading cf.pm";	3271	warn "reloading cf.pm";
2078	require cf;	3272	require cf;
2079	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3273	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080		3274
2081	# load config and database again	3275	warn "loading config and database again";
2082	cf::cfg_load;	3276	cf::reload_config;
2083	cf::db_load;
2084		3277
2085	# load extensions
2086	warn "load extensions";	3278	warn "loading extensions";
2087	cf::load_extensions;	3279	cf::load_extensions;
2088		3280
2089	# reattach attachments to objects	3281	warn "reattaching attachments to objects/players";
2090	warn "reattach";	3282	_global_reattach; # objects, sockets
2091	_global_reattach;	3283	warn "reattaching attachments to maps";
2092	};	3284	reattach $_ for values %MAP;
		3285	warn "reattaching attachments to players";
		3286	reattach $_ for values %PLAYER;
2093		3287
2094	if ($@) {	3288	warn "leaving sync_job";
		3289
		3290	1
		3291	} or do {
2095	warn $@;	3292	warn $@;
2096	warn "error while reloading, exiting.";	3293	warn "error while reloading, exiting.";
2097	exit 1;	3294	exit 1;
2098	}	3295	};
2099		3296
2100	warn "reloaded successfully";	3297	warn "reloaded";
2101	};	3298	};
2102		3299
2103	#############################################################################	3300	our $RELOAD_WATCHER; # used only during reload
2104		3301
2105	unless ($LINK_MAP) {	3302	sub reload_perl() {
2106	$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.
2107		3305
2108	$LINK_MAP->width (41);	3306	$RELOAD_WATCHER ||= Event->timer (
2109	$LINK_MAP->height (41);	3307	reentrant => 0,
2110	$LINK_MAP->alloc;
2111	$LINK_MAP->path ("{link}");
2112	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2113	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115	# dirty hack because... archetypes are not yet loaded
2116	Event->timer (
2117	after => 2,	3308	after => 0,
		3309	data => WF_AUTOCANCEL,
2118	cb => sub {	3310	cb => sub {
2119	$_[0]->w->cancel;	3311	do_reload_perl;
2120		3312	undef $RELOAD_WATCHER;
2121	# provide some exits "home"
2122	my $exit = cf::object::new "exit";
2123
2124	$exit->slaying ($EMERGENCY_POSITION->[0]);
2125	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128	$LINK_MAP->insert ($exit->clone, 19, 19);
2129	$LINK_MAP->insert ($exit->clone, 19, 20);
2130	$LINK_MAP->insert ($exit->clone, 19, 21);
2131	$LINK_MAP->insert ($exit->clone, 20, 19);
2132	$LINK_MAP->insert ($exit->clone, 20, 21);
2133	$LINK_MAP->insert ($exit->clone, 21, 19);
2134	$LINK_MAP->insert ($exit->clone, 21, 20);
2135	$LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137	$exit->destroy;
2138	});	3313	},
2139		3314	);
2140	$LINK_MAP->{deny_save} = 1;
2141	$LINK_MAP->{deny_reset} = 1;
2142
2143	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2144	}	3315	}
2145
2146	register "<global>", __PACKAGE__;
2147		3316
2148	register_command "reload" => sub {	3317	register_command "reload" => sub {
2149	my ($who, $arg) = @_;	3318	my ($who, $arg) = @_;
2150		3319
2151	if ($who->flag (FLAG_WIZ)) {	3320	if ($who->flag (FLAG_WIZ)) {
2152	$who->message ("start of reload.");
2153	reload;
2154	$who->message ("end of reload.");	3321	$who->message ("reloading server.");
		3322	async { reload_perl };
2155	}	3323	}
2156	};	3324	};
2157		3325
2158	unshift @INC, $LIBDIR;	3326	unshift @INC, $LIBDIR;
2159		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;
2160	$TICK_WATCHER = Event->timer (	3353	$TICK_WATCHER = Event->timer (
2161	reentrant => 0,	3354	reentrant => 0,
		3355	parked => 1,
2162	prio => 0,	3356	prio => 0,
2163	at => $NEXT_TICK || $TICK,	3357	at => $NEXT_TICK || $TICK,
2164	data => WF_AUTOCANCEL,	3358	data => WF_AUTOCANCEL,
2165	cb => sub {	3359	cb => sub {
2166	unless ($FREEZE) {	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
2167	cf::server_tick; # one server iteration	3368	cf::server_tick; # one server iteration
2168	$RUNTIME += $TICK;	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
2169	}	3391	};
2170		3392
		3393	$RUNTIME += $TICK;
2171	$NEXT_TICK += $TICK;	3394	$NEXT_TICK += $TICK;
2172		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
2173	# 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
2174	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3417	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2175		3418
2176	$TICK_WATCHER->at ($NEXT_TICK);	3419	$TICK_WATCHER->at ($NEXT_TICK);
2177	$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
2178	},	3428	},
2179	);	3429	);
2180		3430
		3431	{
2181	IO::AIO::max_poll_time $TICK * 0.2;	3432	BDB::max_poll_time $TICK * 0.1;
2182		3433	$BDB_POLL_WATCHER = Event->io (
2183	Event->io (	3434	reentrant => 0,
2184	fd => IO::AIO::poll_fileno,	3435	fd => BDB::poll_fileno,
2185	poll => 'r',	3436	poll => 'r',
2186	prio => 5,	3437	prio => 0,
2187	data => WF_AUTOCANCEL,
2188	cb => \&IO::AIO::poll_cb,
2189	);
2190
2191	Event->timer (
2192	data => WF_AUTOCANCEL,	3438	data => WF_AUTOCANCEL,
2193	after => 0,	3439	cb => \&BDB::poll_cb,
2194	interval => 10,	3440	);
2195	cb => sub {	3441	BDB::min_parallel 8;
2196	(Coro::unblock_sub {	3442
2197	write_runtime	3443	BDB::set_sync_prepare {
2198	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 $@;
2199	})->();	3477	};
2200	},	3478	}
2201	);	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;
2202		3536
2203	END { cf::emergency_save }	3537	END { cf::emergency_save }
2204		3538
2205	1	3539	1
2206		3540

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