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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.251 by root, Wed Apr 18 14:45:13 2007 UTC vs.
Revision 1.374 by root, Wed Sep 19 22:07:16 2007 UTC

…		…
10	use Event;	10	use Event;
11	use Opcode;	11	use Opcode;
12	use Safe;	12	use Safe;
13	use Safe::Hole;	13	use Safe::Hole;
14		14
15	use Coro 3.61 ();	15	use Coro 3.64 ();
16	use Coro::State;	16	use Coro::State;
17	use Coro::Handle;	17	use Coro::Handle;
18	use Coro::Event;	18	use Coro::Event;
19	use Coro::Timer;	19	use Coro::Timer;
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
		24	use Coro::Util ();
24		25
		26	use JSON::XS ();
25	use BDB ();	27	use BDB ();
26	use Data::Dumper;	28	use Data::Dumper;
27	use Digest::MD5;	29	use Digest::MD5;
28	use Fcntl;	30	use Fcntl;
29	use YAML::Syck ();	31	use YAML::Syck ();
30	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
31	use Time::HiRes;	33	use Time::HiRes;
32	use Compress::LZF;	34	use Compress::LZF;
		35	use Digest::MD5 ();
33		36
34	# configure various modules to our taste	37	# configure various modules to our taste
35	#	38	#
36	$Storable::canonical = 1; # reduce rsync transfers	39	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	52	our %COMMAND = ();
50	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
51		54
52	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
56		60
57	our $RELOAD; # number of reloads so far	61	our $RELOAD; # number of reloads so far
58	our @EVENT;	62	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	63
		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";
60		75
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;	77	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;	78	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	80	our $NEXT_TICK;
66	our $NOW;	81	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	82	our $USE_FSYNC = 1; # use fsync to write maps - default off
68		83
69	our $BDB_POLL_WATCHER;	84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	88	our $DB_ENV;
71		89
72	our %CFG;	90	our %CFG;
73		91
74	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	93	our $RUNTIME;
76		94
77	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	97	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		98
83	# used to convert map paths into valid unix filenames by replacing / by ∕	99	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
		105
86	binmode STDOUT;	106	binmode STDOUT;
87	binmode STDERR;	107	binmode STDERR;
88		108
89	# read virtual server time, if available	109	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
91	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
92	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
93	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
94	}	114	}
95		115
96	mkdir cf::localdir;	116	mkdir $_
97	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir cf::localdir . "/" . cf::tmpdir;
99	mkdir cf::localdir . "/" . cf::uniquedir;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		118
103	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
104		120
105	sub cf::map::normalise;	121	sub cf::map::normalise;
106		122
…		…
117	=item $cf::RUNTIME	133	=item $cf::RUNTIME
118		134
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	136	every server tick.
121		137
122	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		141
124	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
126		146
127	=item $cf::NOW	147	=item $cf::NOW
128		148
129	The time of the last (current) server tick.	149	The time of the last (current) server tick.
130		150
131	=item $cf::TICK	151	=item $cf::TICK
132		152
133	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
134		164
135	=item %cf::CFG	165	=item %cf::CFG
136		166
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
138	from wherever your confdir points to.	168	from wherever your confdir points to.
…		…
141		171
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	173	returns directly I<after> the tick processing (and consequently, can only wake one process
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
		181
146	=back	182	=back
147		183
148	=cut	184	=cut
149		185
150	BEGIN {	186	BEGIN {
…		…
152	my $msg = join "", @_;	188	my $msg = join "", @_;
153		189
154	$msg .= "\n"	190	$msg .= "\n"
155	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
156		192
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		194
159	utf8::encode $msg;
160	LOG llevError, $msg;	195	LOG llevError, $msg;
161	};	196	};
162	}	197	}
163		198
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		206
171	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	208	# within the Safe compartment.
173	for my $pkg (qw(	209	for my $pkg (qw(
174	cf::global cf::attachable	210	cf::global cf::attachable
…		…
182	}	218	}
183		219
184	$Event::DIED = sub {	220	$Event::DIED = sub {
185	warn "error in event callback: @_";	221	warn "error in event callback: @_";
186	};	222	};
		223
		224	#############################################################################
187		225
188	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
189		227
190	=over 4	228	=over 4
191		229
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	249	$d
212	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
213	}	251	}
214		252
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
218		254
219	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
220		256
221	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
222		258
223	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
		260
		261	=cut
		262
		263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		264
		265	sub to_json ($) { $json_coder->encode ($_[0]) }
		266	sub from_json ($) { $json_coder->decode ($_[0]) }
224		267
225	=item cf::lock_wait $string	268	=item cf::lock_wait $string
226		269
227	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
228		271
…		…
231	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
232	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
233	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
234	returned.	277	returned.
235		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
236	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
238		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
239	=cut	289	=cut
240		290
241	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
242		293
243	sub lock_wait($) {	294	sub lock_wait($) {
244	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
245		301
246	# wait for lock, if any	302	# wait for lock, if any
247	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;	305	Coro::schedule;
…		…
255		311
256	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
257	lock_wait $key;	313	lock_wait $key;
258		314
259	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
260		317
261	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
262	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
264	}	322	}
		323	}
		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
265	}	329	}
266		330
267	sub freeze_mainloop {	331	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
269		333
…		…
272	};	336	};
273	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
274	$guard	338	$guard
275	}	339	}
276		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
277	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
278		400
279	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
280	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
281	thing you are allowed to do is call C<prio> on it.	403	thing you are allowed to do is call C<prio> on it.
…		…
284		406
285	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
286		408
287	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
288		410
289	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
292		415
293	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
296	fast or be very important.	419	fast or be very important.
…		…
299		422
300	sub sync_job(&) {	423	sub sync_job(&) {
301	my ($job) = @_;	424	my ($job) = @_;
302		425
303	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
304	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
306		431
307	# TODO: use suspend/resume instead	432	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	433	# (but this is cancel-safe)
…		…
310		435
311	my $busy = 1;	436	my $busy = 1;
312	my @res;	437	my @res;
313		438
314	(async {	439	(async {
		440	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	441	@res = eval { $job->() };
316	warn $@ if $@;	442	warn $@ if $@;
317	undef $busy;	443	undef $busy;
318	})->prio (Coro::PRIO_MAX);	444	})->prio (Coro::PRIO_MAX);
319		445
320	while ($busy) {	446	while ($busy) {
321	Coro::cede or Event::one_event;	447	Coro::cede or Event::one_event;
322	}	448	}
		449
		450	$time = Event::time - $time;
		451
		452	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		453	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		454
		455	$tick_start += $time; # do not account sync jobs to server load
323		456
324	wantarray ? @res : $res[0]	457	wantarray ? @res : $res[0]
325	} else {	458	} else {
326	# we are in another coroutine, how wonderful, everything just works	459	# we are in another coroutine, how wonderful, everything just works
327		460
…		…
347	$EXT_CORO{$coro+0} = $coro;	480	$EXT_CORO{$coro+0} = $coro;
348		481
349	$coro	482	$coro
350	}	483	}
351		484
352	sub write_runtime {	485	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		486
355	my $runtime = cf::localdir . "/runtime";	487	Executes the given code block with the given arguments in a seperate
		488	process, returning the results. Everything must be serialisable with
		489	Coro::Storable. May, of course, block. Note that the executed sub may
		490	never block itself or use any form of Event handling.
356		491
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	492	=cut
358	or return;
359		493
360	my $value = $cf::RUNTIME + 90 + 10;	494	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	495	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		496
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	497	# we seemingly have to make a local copy of the whole thing,
365	and return;	498	# otherwise perl prematurely frees the stuff :/
		499	# TODO: investigate and fix (likely this will be rather laborious)
366		500
367	# always fsync - this file is important	501	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	502	reset_signals;
369	and return;	503	&$cb
		504	}, @args;
370		505
371	close $fh	506	wantarray ? @res : $res[-1]
372	or return;	507	}
373		508
374	aio_rename "$runtime~", $runtime	509	=item $value = cf::db_get $family => $key
375	and return;
376		510
		511	Returns a single value from the environment database.
		512
		513	=item cf::db_put $family => $key => $value
		514
		515	Stores the given C<$value> in the family. It can currently store binary
		516	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		517
		518	=item $db = cf::db_table "name"
		519
		520	Create and/or open a new database table. The string must not be "db" and must be unique
		521	within each server.
		522
		523	=cut
		524
		525	sub db_table($) {
		526	my ($name) = @_;
		527	my $db = BDB::db_create $DB_ENV;
		528
		529	eval {
		530	$db->set_flags (BDB::CHKSUM);
		531
		532	utf8::encode $name;
		533	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		534	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		535	cf::cleanup "db_open(db): $!" if $!;
		536	};
		537	cf::cleanup "db_open(db): $@" if $@;
		538
		539	$db
		540	}
		541
		542	our $DB;
		543
		544	sub db_init {
		545	cf::sync_job {
		546	$DB ||= db_table "db";
		547	};
		548	}
		549
		550	sub db_get($$) {
		551	my $key = "$_[0]/$_[1]";
		552
		553	cf::sync_job {
		554	BDB::db_get $DB, undef, $key, my $data;
		555
		556	$! ? ()
		557	: $data
377	1	558	}
		559	}
		560
		561	sub db_put($$$) {
		562	BDB::dbreq_pri 4;
		563	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		564	}
		565
		566	=item cf::cache $id => [$paths...], $processversion => $process
		567
		568	Generic caching function that returns the value of the resource $id,
		569	caching and regenerating as required.
		570
		571	This function can block.
		572
		573	=cut
		574
		575	sub cache {
		576	my ($id, $src, $processversion, $process) = @_;
		577
		578	my $meta =
		579	join "\x00",
		580	$processversion,
		581	map {
		582	aio_stat $_
		583	and Carp::croak "$_: $!";
		584
		585	($_, (stat _)[7,9])
		586	} @$src;
		587
		588	my $dbmeta = db_get cache => "$id/meta";
		589	if ($dbmeta ne $meta) {
		590	# changed, we may need to process
		591
		592	my @data;
		593	my $md5;
		594
		595	for (0 .. $#$src) {
		596	0 <= aio_load $src->[$_], $data[$_]
		597	or Carp::croak "$src->[$_]: $!";
		598	}
		599
		600	# if processing is expensive, check
		601	# checksum first
		602	if (1) {
		603	$md5 =
		604	join "\x00",
		605	$processversion,
		606	map {
		607	cf::cede_to_tick;
		608	($src->[$_], Digest::MD5::md5_hex $data[$_])
		609	} 0.. $#$src;
		610
		611
		612	my $dbmd5 = db_get cache => "$id/md5";
		613	if ($dbmd5 eq $md5) {
		614	db_put cache => "$id/meta", $meta;
		615
		616	return db_get cache => "$id/data";
		617	}
		618	}
		619
		620	my $t1 = Time::HiRes::time;
		621	my $data = $process->(\@data);
		622	my $t2 = Time::HiRes::time;
		623
		624	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		625
		626	db_put cache => "$id/data", $data;
		627	db_put cache => "$id/md5" , $md5;
		628	db_put cache => "$id/meta", $meta;
		629
		630	return $data;
		631	}
		632
		633	db_get cache => "$id/data"
378	}	634	}
379		635
380	=item cf::datalog type => key => value, ...	636	=item cf::datalog type => key => value, ...
381		637
382	Log a datalog packet of the given type with the given key-value pairs.	638	Log a datalog packet of the given type with the given key-value pairs.
…		…
400	attach callbacks/event handlers (a collection of which is called an "attachment")	656	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	657	to it. All such attachable objects support the following methods.
402		658
403	In the following description, CLASS can be any of C<global>, C<object>	659	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	660	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	661	Crossfire TRT).
406		662
407	=over 4	663	=over 4
408		664
409	=item $attachable->attach ($attachment, key => $value...)	665	=item $attachable->attach ($attachment, key => $value...)
410		666
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	829	$registry = $CB_TYPE[$object_type] ||= [];
574		830
575	} elsif ($type eq "subtype") {	831	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	832	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	833	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	834	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		835
580	} elsif ($type eq "package") {	836	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	837	my $pkg = shift @arg;
582		838
583	while (my ($name, $id) = each %cb_id) {	839	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	868	_attach $registry, $klass, @attach;
613	}	869	}
614		870
615	$obj->{$name} = \%arg;	871	$obj->{$name} = \%arg;
616	} else {	872	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	873	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	874	}
619		875
620	$obj->{_attachment}{$name} = undef;	876	$obj->{_attachment}{$name} = undef;
621	}	877	}
622		878
…		…
624	if (ref $_[0]) {	880	if (ref $_[0]) {
625	_object_attach @_;	881	_object_attach @_;
626	} else {	882	} else {
627	_attach shift->_attach_registry, @_;	883	_attach shift->_attach_registry, @_;
628	}	884	}
		885	_recalc_want;
629	};	886	};
630		887
631	# all those should be optimised	888	# all those should be optimised
632	sub cf::attachable::detach {	889	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	890	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	893	delete $obj->{_attachment}{$name};
637	reattach ($obj);	894	reattach ($obj);
638	} else {	895	} else {
639	Carp::croak "cannot, currently, detach class attachments";	896	Carp::croak "cannot, currently, detach class attachments";
640	}	897	}
		898	_recalc_want;
641	};	899	};
642		900
643	sub cf::attachable::attached {	901	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	902	my ($obj, $name) = @_;
645		903
…		…
660	";	918	";
661	die if $@;	919	die if $@;
662	}	920	}
663		921
664	our $override;	922	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	923	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		924
667	sub override {	925	sub override {
668	$override = 1;	926	$override = 1;
669	@invoke_results = ();	927	@INVOKE_RESULTS = (@_);
670	}	928	}
671		929
672	sub do_invoke {	930	sub do_invoke {
673	my $event = shift;	931	my $event = shift;
674	my $callbacks = shift;	932	my $callbacks = shift;
675		933
676	@invoke_results = ();	934	@INVOKE_RESULTS = ();
677		935
678	local $override;	936	local $override;
679		937
680	for (@$callbacks) {	938	for (@$callbacks) {
681	eval { &{$_->[1]} };	939	eval { &{$_->[1]} };
…		…
698		956
699	Generate an object-specific event with the given arguments.	957	Generate an object-specific event with the given arguments.
700		958
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	959	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	960	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	961	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		962
705	=back	963	=back
706		964
707	=cut	965	=cut
708		966
709	#############################################################################	967	#############################################################################
710	# object support	968	# object support
		969	#
		970
		971	sub _can_merge {
		972	my ($ob1, $ob2) = @_;
		973
		974	local $Storable::canonical = 1;
		975	my $fob1 = Storable::freeze $ob1;
		976	my $fob2 = Storable::freeze $ob2;
		977
		978	$fob1 eq $fob2
		979	}
711		980
712	sub reattach {	981	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	982	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	983	my ($obj) = @_;
715		984
…		…
762	sub object_freezer_save {	1031	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1032	my ($filename, $rdata, $objs) = @_;
764		1033
765	sync_job {	1034	sync_job {
766	if (length $$rdata) {	1035	if (length $$rdata) {
		1036	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1037	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1038	$decname, length $$rdata, scalar @$objs;
769		1039
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1040	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1041	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1042	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1043	aio_fsync $fh if $cf::USE_FSYNC;
…		…
792	}	1062	}
793	} else {	1063	} else {
794	aio_unlink $filename;	1064	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
796	}	1066	}
797	}	1067	};
798	}	1068	}
799		1069
800	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
802		1072
…		…
814	or return;	1084	or return;
815		1085
816	unless (aio_stat "$filename.pst") {	1086	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1087	(aio_load "$filename.pst", $av) >= 0
818	or return;	1088	or return;
		1089
819	$av = eval { (Storable::thaw $av)->{objs} };	1090	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1091	}
821		1092
		1093	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1094	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1095	$decname, length $data, scalar @{$av || []};
		1096
824	return ($data, $av);	1097	($data, $av)
825	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
826		1105
827	#############################################################################	1106	#############################################################################
828	# command handling &c	1107	# command handling &c
829		1108
830	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1123	}
845		1124
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1126
848	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
849		1132
850	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
851	called.	1134	called.
852		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
853	=cut	1147	=cut
854		1148
855	sub register_extcmd {	1149	sub register_extcmd {
856	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
857		1151
858	$EXTCMD{$name} = $cb;	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
859	}	1159	}
860		1160
861	cf::player->attach (	1161	cf::player->attach (
862	on_command => sub {	1162	on_command => sub {
863	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1172	cf::override;
873	},	1173	},
874	on_extcmd => sub {	1174	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
876		1176
877	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1178
879	if (ref $msg) {	1179	if (ref $msg) {
		1180	my ($type, $reply, @payload) =
		1181	"ARRAY" eq ref $msg
		1182	? @$msg
		1183	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1184
		1185	my @reply;
		1186
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1187	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1188	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1189	}
		1190
		1191	$pl->ext_reply ($reply, @reply)
		1192	if $reply;
		1193
885	} else {	1194	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1195	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1196	}
888		1197
889	cf::override;	1198	cf::override;
890	},	1199	},
891	);	1200	);
892		1201
893	sub load_extension {
894	my ($path) = @_;
895
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
897	my $base = $1;
898	my $pkg = $1;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}
921	die $@;
922	}
923
924	push @EXTS, $pkg;
925	}
926
927	sub load_extensions {	1202	sub load_extensions {
		1203	cf::sync_job {
		1204	my %todo;
		1205
928	for my $ext (<$LIBDIR/*.ext>) {	1206	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1207	next unless -r $path;
930	eval {	1208
931	load_extension $ext;	1209	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1210	my $base = $1;
		1211	my $pkg = $1;
		1212	$pkg =~ s/[^[:word:]]/_/g;
		1213	$pkg = "ext::$pkg";
		1214
		1215	open my $fh, "<:utf8", $path
		1216	or die "$path: $!";
		1217
		1218	my $source = do { local $/; <$fh> };
		1219
		1220	my %ext = (
		1221	path => $path,
		1222	base => $base,
		1223	pkg => $pkg,
		1224	);
		1225
		1226	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1227	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1228
		1229	$ext{source} =
		1230	"package $pkg; use strict; use utf8;\n"
		1231	. "#line 1 \"$path\"\n{\n"
		1232	. $source
		1233	. "\n};\n1";
		1234
		1235	$todo{$base} = \%ext;
		1236	}
		1237
		1238	my %done;
		1239	while (%todo) {
		1240	my $progress;
		1241
		1242	while (my ($k, $v) = each %todo) {
		1243	for (split /,\s*/, $v->{meta}{depends}) {
		1244	goto skip
		1245	unless exists $done{$_};
		1246	}
		1247
		1248	warn "... loading '$k' into '$v->{pkg}'\n";
		1249
		1250	unless (eval $v->{source}) {
		1251	my $msg = $@ ? "$v->{path}: $@\n"
		1252	: "$v->{base}: extension inactive.\n";
		1253
		1254	if (exists $v->{meta}{mandatory}) {
		1255	warn $msg;
		1256	warn "mandatory extension failed to load, exiting.\n";
		1257	exit 1;
		1258	}
		1259
		1260	warn $msg;
		1261	}
		1262
		1263	$done{$k} = delete $todo{$k};
		1264	push @EXTS, $v->{pkg};
		1265	$progress = 1;
932	1	1266	}
933	} or warn "$ext not loaded: $@";	1267
		1268	skip:
		1269	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1270	unless $progress;
		1271	}
934	}	1272	};
935	}	1273	}
936		1274
937	#############################################################################	1275	#############################################################################
938		1276
		1277	=back
		1278
939	=head2 CORE EXTENSIONS	1279	=head2 CORE EXTENSIONS
940		1280
941	Functions and methods that extend core crossfire objects.	1281	Functions and methods that extend core crossfire objects.
942		1282
943	=cut	1283	=cut
…		…
948		1288
949	=head3 cf::player	1289	=head3 cf::player
950		1290
951	=over 4	1291	=over 4
952		1292
		1293	=item cf::player::num_playing
		1294
		1295	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1296
		1297	=cut
		1298
		1299	sub num_playing {
		1300	scalar grep
		1301	$_->ob->map
		1302	&& !$_->hidden
		1303	&& !$_->ob->flag (cf::FLAG_WIZ),
		1304	cf::player::list
		1305	}
		1306
953	=item cf::player::find $login	1307	=item cf::player::find $login
954		1308
955	Returns the given player object, loading it if necessary (might block).	1309	Returns the given player object, loading it if necessary (might block).
956		1310
957	=cut	1311	=cut
958		1312
959	sub playerdir($) {	1313	sub playerdir($) {
960	cf::localdir	1314	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1315	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1316	}
966		1317
967	sub path($) {	1318	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1319	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1346	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1347	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1348	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1349	aio_unlink +(playerdir $login) . "/$login.pl";
999		1350
1000	my $pl = load_pl path $login	1351	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1352	or return;
		1353
		1354	my $pl = cf::player::load_pl $f
		1355	or return;
		1356	local $cf::PLAYER_LOADING{$login} = $pl;
		1357	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1358	$cf::PLAYER{$login} = $pl
1003	}	1359	}
1004	}	1360	}
1005	}	1361	}
1006		1362
…		…
1016		1372
1017	aio_mkdir playerdir $pl, 0770;	1373	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1374	$pl->{last_save} = $cf::RUNTIME;
1019		1375
1020	$pl->save_pl ($path);	1376	$pl->save_pl ($path);
1021	Coro::cede;	1377	cf::cede_to_tick;
1022	}	1378	}
1023		1379
1024	sub new($) {	1380	sub new($) {
1025	my ($login) = @_;	1381	my ($login) = @_;
1026		1382
…		…
1030	$self->{deny_save} = 1;	1386	$self->{deny_save} = 1;
1031		1387
1032	$cf::PLAYER{$login} = $self;	1388	$cf::PLAYER{$login} = $self;
1033		1389
1034	$self	1390	$self
		1391	}
		1392
		1393	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1394
		1395	=cut
		1396
		1397	sub send_msg {
		1398	my $ns = shift->ns
		1399	or return;
		1400	$ns->send_msg (@_);
1035	}	1401	}
1036		1402
1037	=item $pl->quit_character	1403	=item $pl->quit_character
1038		1404
1039	Nukes the player without looking back. If logged in, the connection will	1405	Nukes the player without looking back. If logged in, the connection will
…		…
1088	while and may block, so not sync_job-capable, ever.	1454	while and may block, so not sync_job-capable, ever.
1089		1455
1090	=cut	1456	=cut
1091		1457
1092	sub list_logins {	1458	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1459	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1460	or return [];
1095		1461
1096	my @logins;	1462	my @logins;
1097		1463
1098	for my $login (@$dirs) {	1464	for my $login (@$dirs) {
		1465	my $path = path $login;
		1466
		1467	# a .pst is a dead give-away for a valid player
		1468	unless (-e "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1469	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1470	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1471	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1472	}
1102		1473
1103	utf8::decode $login;	1474	utf8::decode $login;
1104	push @logins, $login;	1475	push @logins, $login;
1105	}	1476	}
1106		1477
…		…
1133	}	1504	}
1134		1505
1135	\@paths	1506	\@paths
1136	}	1507	}
1137		1508
		1509	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1510
		1511	Expand crossfire pod fragments into protocol xml.
		1512
		1513	=cut
		1514
		1515	sub expand_cfpod {
		1516	((my $self), (local $_)) = @_;
		1517
		1518	# escape & and <
		1519	s/&/&amp;/g;
		1520	s/(?<![BIUGHT])</&lt;/g;
		1521
		1522	# this is buggy, it needs to properly take care of nested <'s
		1523
		1524	1 while
		1525	# replace B<>, I<>, U<> etc.
		1526	s/B<([^\>]*)>/<b>$1<\/b>/
		1527	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1528	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1529	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1530	# replace G<male|female> tags
		1531	|| s{G<([^>|]*)\|([^>]*)>}{
		1532	$self->gender ? $2 : $1
		1533	}ge
		1534	# replace H<hint text>
		1535	|| s{H<([^\>]*)>}
		1536	{
		1537	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1538	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1539	"")
		1540	[$self->{hintmode}]
		1541	}ge;
		1542
		1543	# create single paragraphs (very hackish)
		1544	s/(?<=\S)\n(?=\w)/ /g;
		1545
		1546	# compress some whitespace
		1547	s/\s+\n/\n/g; # ws line-ends
		1548	s/\n\n+/\n/g; # double lines
		1549	s/^\n+//; # beginning lines
		1550	s/\n+$//; # ending lines
		1551
		1552	$_
		1553	}
		1554
		1555	sub hintmode {
		1556	$_[0]{hintmode} = $_[1] if @_ > 1;
		1557	$_[0]{hintmode}
		1558	}
		1559
1138	=item $player->ext_reply ($msgid, %msg)	1560	=item $player->ext_reply ($msgid, @msg)
1139		1561
1140	Sends an ext reply to the player.	1562	Sends an ext reply to the player.
1141		1563
1142	=cut	1564	=cut
1143		1565
1144	sub ext_reply($$%) {	1566	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1567	my ($self, $id, @msg) = @_;
1146		1568
1147	$msg{msgid} = $id;	1569	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1570	}
1151		1571
1152	=item $player->ext_event ($type, %msg)	1572	=item $player->ext_msg ($type, @msg)
1153		1573
1154	Sends an ext event to the client.	1574	Sends an ext event to the client.
1155		1575
1156	=cut	1576	=cut
1157		1577
1158	sub ext_event($$%) {	1578	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1579	my ($self, $type, @msg) = @_;
1160		1580
1161	$self->ns->ext_event ($type, %msg);	1581	$self->ns->ext_msg ($type, @msg);
1162	}	1582	}
1163		1583
1164	=head3 cf::region	1584	=head3 cf::region
1165		1585
1166	=over 4	1586	=over 4
…		…
1169		1589
1170	package cf::region;	1590	package cf::region;
1171		1591
1172	=item cf::region::find_by_path $path	1592	=item cf::region::find_by_path $path
1173		1593
1174	Tries to decuce the probable region for a map knowing only its path.	1594	Tries to decuce the likely region for a map knowing only its path.
1175		1595
1176	=cut	1596	=cut
1177		1597
1178	sub find_by_path($) {	1598	sub find_by_path($) {
1179	my ($path) = @_;	1599	my ($path) = @_;
1180		1600
1181	my ($match, $specificity);	1601	my ($match, $specificity);
1182		1602
1183	for my $region (list) {	1603	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1604	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1605	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1606	if $region->specificity > $specificity;
1187	}	1607	}
1188	}	1608	}
1189		1609
…		…
1253	my ($self, $merge) = @_;	1673	my ($self, $merge) = @_;
1254		1674
1255	# we have to keep some variables in memory intact	1675	# we have to keep some variables in memory intact
1256	local $self->{path};	1676	local $self->{path};
1257	local $self->{load_path};	1677	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1678
1261	$self->SUPER::thawer_merge ($merge);	1679	$self->SUPER::thawer_merge ($merge);
1262	}	1680	}
1263		1681
1264	sub normalise {	1682	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1729	$self->init; # pass $1 etc.
1312	return $self;	1730	return $self;
1313	}	1731	}
1314	}	1732	}
1315		1733
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1734	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1735	()
1318	}	1736	}
1319		1737
1320	sub init {	1738	sub init {
1321	my ($self) = @_;	1739	my ($self) = @_;
…		…
1336		1754
1337	# the original (read-only) location	1755	# the original (read-only) location
1338	sub load_path {	1756	sub load_path {
1339	my ($self) = @_;	1757	my ($self) = @_;
1340		1758
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1759	"$MAPDIR/$self->{path}.map"
1342	}	1760	}
1343		1761
1344	# the temporary/swap location	1762	# the temporary/swap location
1345	sub save_path {	1763	sub save_path {
1346	my ($self) = @_;	1764	my ($self) = @_;
1347		1765
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1766	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1767	"$TMPDIR/$path.map"
1350	}	1768	}
1351		1769
1352	# the unique path, undef == no special unique path	1770	# the unique path, undef == no special unique path
1353	sub uniq_path {	1771	sub uniq_path {
1354	my ($self) = @_;	1772	my ($self) = @_;
1355		1773
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1774	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1775	"$UNIQUEDIR/$path"
1358	}	1776	}
1359		1777
1360	# and all this just because we cannot iterate over	1778	# and all this just because we cannot iterate over
1361	# all maps in C++...	1779	# all maps in C++...
1362	sub change_all_map_light {	1780	sub change_all_map_light {
…		…
1364		1782
1365	$_->change_map_light ($change)	1783	$_->change_map_light ($change)
1366	for grep $_->outdoor, values %cf::MAP;	1784	for grep $_->outdoor, values %cf::MAP;
1367	}	1785	}
1368		1786
		1787	sub decay_objects {
		1788	my ($self) = @_;
		1789
		1790	return if $self->{deny_reset};
		1791
		1792	$self->do_decay_objects;
		1793	}
		1794
1369	sub unlink_save {	1795	sub unlink_save {
1370	my ($self) = @_;	1796	my ($self) = @_;
1371		1797
1372	utf8::encode (my $save = $self->save_path);	1798	utf8::encode (my $save = $self->save_path);
1373	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1799	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1376		1802
1377	sub load_header_from($) {	1803	sub load_header_from($) {
1378	my ($self, $path) = @_;	1804	my ($self, $path) = @_;
1379		1805
1380	utf8::encode $path;	1806	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1807	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1808	or return;
		1809
		1810	$self->_load_header ($f)
		1811	or return;
		1812
		1813	local $MAP_LOADING{$self->{path}} = $self;
		1814	$f->resolve_delayed_derefs;
1386		1815
1387	$self->{load_path} = $path;	1816	$self->{load_path} = $path;
1388		1817
1389	1	1818	1
1390	}	1819	}
…		…
1429	$self->load_header_orig	1858	$self->load_header_orig
1430	or return;	1859	or return;
1431	$self->prepare_orig;	1860	$self->prepare_orig;
1432	}	1861	}
1433		1862
		1863	$self->{deny_reset} = 1
		1864	if $self->no_reset;
		1865
1434	$self->default_region (cf::region::find_by_path $self->{path})	1866	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1867	unless $self->default_region;
1436		1868
1437	1	1869	1
1438	}	1870	}
…		…
1441	sub find {	1873	sub find {
1442	my ($path, $origin) = @_;	1874	my ($path, $origin) = @_;
1443		1875
1444	$path = normalise $path, $origin && $origin->path;	1876	$path = normalise $path, $origin && $origin->path;
1445		1877
		1878	cf::lock_wait "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1879	cf::lock_wait "map_find:$path";
1447		1880
1448	$cf::MAP{$path} || do {	1881	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";	1882	my $guard1 = cf::lock_acquire "map_find:$path";
		1883	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1884
1450	my $map = new_from_path cf::map $path	1885	my $map = new_from_path cf::map $path
1451	or return;	1886	or return;
1452		1887
1453	$map->{last_save} = $cf::RUNTIME;	1888	$map->{last_save} = $cf::RUNTIME;
1454		1889
1455	$map->load_header	1890	$map->load_header
1456	or return;	1891	or return;
1457		1892
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1893	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1894	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1895	#$cf::WAIT_FOR_TICK->wait;
		1896	undef $guard1;
		1897	undef $guard2;
1461	$map->reset;	1898	$map->reset;
1462	undef $guard;
1463	return find $path;	1899	return find $path;
1464	}	1900	}
1465		1901
1466	$cf::MAP{$path} = $map	1902	$cf::MAP{$path} = $map
1467	}	1903	}
…		…
1474	my ($self) = @_;	1910	my ($self) = @_;
1475		1911
1476	local $self->{deny_reset} = 1; # loading can take a long time	1912	local $self->{deny_reset} = 1; # loading can take a long time
1477		1913
1478	my $path = $self->{path};	1914	my $path = $self->{path};
		1915
		1916	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1917	my $guard = cf::lock_acquire "map_data:$path";
1480		1918
		1919	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1920	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		1921
1483	$self->in_memory (cf::MAP_LOADING);	1922	$self->in_memory (cf::MAP_LOADING);
1484		1923
1485	$self->alloc;	1924	$self->alloc;
1486		1925
1487	$self->pre_load;	1926	$self->pre_load;
1488	Coro::cede;	1927	cf::cede_to_tick;
1489		1928
1490	$self->_load_objects ($self->{load_path}, 1)	1929	my $f = new_from_file cf::object::thawer $self->{load_path};
		1930	$f->skip_block;
		1931	$self->_load_objects ($f)
1491	or return;	1932	or return;
1492		1933
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1934	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1494	if delete $self->{load_original};	1935	if delete $self->{load_original};
1495		1936
1496	if (my $uniq = $self->uniq_path) {	1937	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	1938	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	1939	unless (aio_stat $uniq) {
		1940	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	1941	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	1942	$self->_load_objects ($f);
		1943	$f->resolve_delayed_derefs;
		1944	}
1501	}	1945	}
1502	}	1946	}
1503		1947
1504	Coro::cede;	1948	$f->resolve_delayed_derefs;
		1949
		1950	cf::cede_to_tick;
1505	# now do the right thing for maps	1951	# now do the right thing for maps
1506	$self->link_multipart_objects;	1952	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	1953	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	1954	unless $self->difficulty;
1517	Coro::cede;	1955	cf::cede_to_tick;
		1956
		1957	unless ($self->{deny_activate}) {
		1958	$self->decay_objects;
		1959	$self->fix_auto_apply;
		1960	$self->update_buttons;
		1961	cf::cede_to_tick;
		1962	$self->set_darkness_map;
		1963	cf::cede_to_tick;
1518	$self->activate;	1964	$self->activate;
1519	Coro::cede;	1965	}
		1966
		1967	$self->{last_save} = $cf::RUNTIME;
		1968	$self->last_access ($cf::RUNTIME);
		1969
		1970	$self->in_memory (cf::MAP_IN_MEMORY);
1520	}	1971	}
1521		1972
1522	$self->post_load;	1973	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	1974	}
1527		1975
1528	sub customise_for {	1976	sub customise_for {
1529	my ($self, $ob) = @_;	1977	my ($self, $ob) = @_;
1530		1978
1531	return find "~" . $ob->name . "/" . $self->{path}	1979	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	1980	if $self->per_player;
1533		1981
		1982	# return find "?party/" . $ob->name . "/" . $self->{path}
		1983	# if $self->per_party;
		1984
1534	$self	1985	$self
1535	}	1986	}
1536		1987
1537	# find and load all maps in the 3x3 area around a map	1988	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	1989	sub load_neighbours {
1539	my ($map) = @_;	1990	my ($map) = @_;
1540		1991
1541	my @diag; # diagonal neighbours	1992	my @neigh; # diagonal neighbours
1542		1993
1543	for (0 .. 3) {	1994	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	1995	my $neigh = $map->tile_path ($_)
1545	or next;	1996	or next;
1546	$neigh = find $neigh, $map	1997	$neigh = find $neigh, $map
1547	or next;	1998	or next;
1548	$neigh->load;	1999	$neigh->load;
1549		2000
		2001	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2002	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2003	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2004	}
1553		2005
1554	for (@diag) {	2006	for (grep defined $_->[0], @neigh) {
		2007	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2008	my $neigh = find $path, $origin
1556	or next;	2009	or next;
1557	$neigh->load;	2010	$neigh->load;
1558	}	2011	}
1559	}	2012	}
1560		2013
…		…
1565	}	2018	}
1566		2019
1567	sub do_load_sync {	2020	sub do_load_sync {
1568	my ($map) = @_;	2021	my ($map) = @_;
1569		2022
		2023	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2024	if $Coro::current == $Coro::main;
		2025
1570	cf::sync_job { $map->load };	2026	cf::sync_job { $map->load };
1571	}	2027	}
1572		2028
1573	our %MAP_PREFETCH;	2029	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2030	our $MAP_PREFETCHER = undef;
1575		2031
1576	sub find_async {	2032	sub find_async {
1577	my ($path, $origin) = @_;	2033	my ($path, $origin, $load) = @_;
1578		2034
1579	$path = normalise $path, $origin && $origin->{path};	2035	$path = normalise $path, $origin && $origin->{path};
1580		2036
1581	if (my $map = $cf::MAP{$path}) {	2037	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2038	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1583	}	2039	}
1584		2040
1585	undef $MAP_PREFETCH{$path};	2041	$MAP_PREFETCH{$path} |= $load;
		2042
1586	$MAP_PREFETCHER ||= cf::async {	2043	$MAP_PREFETCHER ||= cf::async {
		2044	$Coro::current->{desc} = "map prefetcher";
		2045
1587	while (%MAP_PREFETCH) {	2046	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2047	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2048	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2049	$map->load if $v;
		2050	}
1592		2051
1593	delete $MAP_PREFETCH{$path};	2052	delete $MAP_PREFETCH{$k};
1594	}	2053	}
1595	}	2054	}
1596	undef $MAP_PREFETCHER;	2055	undef $MAP_PREFETCHER;
1597	};	2056	};
1598	$MAP_PREFETCHER->prio (6);	2057	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2060	}
1602		2061
1603	sub save {	2062	sub save {
1604	my ($self) = @_;	2063	my ($self) = @_;
1605		2064
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2065	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2066
1608	$self->{last_save} = $cf::RUNTIME;	2067	$self->{last_save} = $cf::RUNTIME;
1609		2068
1610	return unless $self->dirty;	2069	return unless $self->dirty;
1611		2070
…		…
1617	return if $self->{deny_save};	2076	return if $self->{deny_save};
1618		2077
1619	local $self->{last_access} = $self->last_access;#d#	2078	local $self->{last_access} = $self->last_access;#d#
1620		2079
1621	cf::async {	2080	cf::async {
		2081	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2082	$_->contr->save for $self->players;
1623	};	2083	};
1624		2084
1625	if ($uniq) {	2085	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2086	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1634	my ($self) = @_;	2094	my ($self) = @_;
1635		2095
1636	# save first because save cedes	2096	# save first because save cedes
1637	$self->save;	2097	$self->save;
1638		2098
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2099	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2100
1641	return if $self->players;	2101	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2102	return if $self->in_memory != cf::MAP_IN_MEMORY;
1643	return if $self->{deny_save};	2103	return if $self->{deny_save};
1644		2104
		2105	$self->in_memory (cf::MAP_SWAPPED);
		2106
		2107	$self->deactivate;
		2108	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2109	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2110	}
1648		2111
1649	sub reset_at {	2112	sub reset_at {
1650	my ($self) = @_;	2113	my ($self) = @_;
1651		2114
1652	# TODO: safety, remove and allow resettable per-player maps	2115	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2116	return 1e99 if $self->{deny_reset};
1655		2117
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2118	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2119	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2120
…		…
1669	my ($self) = @_;	2131	my ($self) = @_;
1670		2132
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2133	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2134
1673	return if $self->players;	2135	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2136
1676	warn "resetting map ", $self->path;#d#	2137	warn "resetting map ", $self->path;
1677		2138
1678	$self->in_memory (cf::MAP_SWAPPED);	2139	$self->in_memory (cf::MAP_SWAPPED);
1679		2140
1680	# need to save uniques path	2141	# need to save uniques path
1681	unless ($self->{deny_save}) {	2142	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2146	if $uniq;
1686	}	2147	}
1687		2148
1688	delete $cf::MAP{$self->path};	2149	delete $cf::MAP{$self->path};
1689		2150
		2151	$self->deactivate;
		2152	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2153	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2154
1694	$self->unlink_save;	2155	$self->unlink_save;
1695	$self->destroy;	2156	$self->destroy;
1696	}	2157	}
1697		2158
1698	my $nuke_counter = "aaaa";	2159	my $nuke_counter = "aaaa";
1699		2160
1700	sub nuke {	2161	sub nuke {
1701	my ($self) = @_;	2162	my ($self) = @_;
1702		2163
		2164	{
		2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2166
1703	delete $cf::MAP{$self->path};	2167	delete $cf::MAP{$self->path};
1704		2168
1705	$self->unlink_save;	2169	$self->unlink_save;
1706		2170
1707	bless $self, "cf::map";	2171	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2172	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2173	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2174	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2175	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2176
1713	$cf::MAP{$self->path} = $self;	2177	$cf::MAP{$self->path} = $self;
		2178	}
1714		2179
1715	$self->reset; # polite request, might not happen	2180	$self->reset; # polite request, might not happen
		2181	}
		2182
		2183	=item $maps = cf::map::tmp_maps
		2184
		2185	Returns an arrayref with all map paths of currently instantiated and saved
		2186	maps. May block.
		2187
		2188	=cut
		2189
		2190	sub tmp_maps() {
		2191	[
		2192	map {
		2193	utf8::decode $_;
		2194	/\.map$/
		2195	? normalise $_
		2196	: ()
		2197	} @{ aio_readdir $TMPDIR or [] }
		2198	]
		2199	}
		2200
		2201	=item $maps = cf::map::random_maps
		2202
		2203	Returns an arrayref with all map paths of currently instantiated and saved
		2204	random maps. May block.
		2205
		2206	=cut
		2207
		2208	sub random_maps() {
		2209	[
		2210	map {
		2211	utf8::decode $_;
		2212	/\.map$/
		2213	? normalise "?random/$_"
		2214	: ()
		2215	} @{ aio_readdir $RANDOMDIR or [] }
		2216	]
1716	}	2217	}
1717		2218
1718	=item cf::map::unique_maps	2219	=item cf::map::unique_maps
1719		2220
1720	Returns an arrayref of paths of all shared maps that have	2221	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2222	instantiated unique items. May block.
1722		2223
1723	=cut	2224	=cut
1724		2225
1725	sub unique_maps() {	2226	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2227	[
1727	or return;	2228	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2229	utf8::decode $_;
1733	next if /\.pst$/;	2230	/\.map$/
1734	next unless /^$PATH_SEP/o;	2231	? normalise $_
1735		2232	: ()
1736	push @paths, cf::map::normalise $_;	2233	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2234	]
1738
1739	\@paths
1740	}	2235	}
1741		2236
1742	package cf;	2237	package cf;
1743		2238
1744	=back	2239	=back
…		…
1762	map { $_, inv_recursive_ $_->inv } @_	2257	map { $_, inv_recursive_ $_->inv } @_
1763	}	2258	}
1764		2259
1765	sub inv_recursive {	2260	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2261	inv_recursive_ inv $_[0]
		2262	}
		2263
		2264	=item $ref = $ob->ref
		2265
		2266	creates and returns a persistent reference to an objetc that can be stored as a string.
		2267
		2268	=item $ob = cf::object::deref ($refstring)
		2269
		2270	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2271	even if the object actually exists. May block.
		2272
		2273	=cut
		2274
		2275	sub deref {
		2276	my ($ref) = @_;
		2277
		2278	# temporary compatibility#TODO#remove
		2279	$ref =~ s{^<}{player/<};
		2280
		2281	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2282	my ($uuid, $name) = ($1, $2);
		2283	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2284	or return;
		2285	$pl->ob->uuid eq $uuid
		2286	or return;
		2287
		2288	$pl->ob
		2289	} else {
		2290	warn "$ref: cannot resolve object reference\n";
		2291	undef
		2292	}
1767	}	2293	}
1768		2294
1769	package cf;	2295	package cf;
1770		2296
1771	=back	2297	=back
…		…
1790		2316
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2317	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2318
1793	if ($self->{record_replies}) {	2319	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2320	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2321
1795	} else {	2322	} else {
		2323	my $pl = $self->contr;
		2324
		2325	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2326	my $dialog = $pl->{npc_dialog};
		2327	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2328
		2329	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2330	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2331	$self->message ($msg, $flags);
		2332	}
1798	}	2333	}
		2334	}
		2335
		2336	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2337
		2338	=cut
		2339
		2340	sub cf::object::send_msg {
		2341	my $pl = shift->contr
		2342	or return;
		2343	$pl->send_msg (@_);
1799	}	2344	}
1800		2345
1801	=item $player_object->may ("access")	2346	=item $player_object->may ("access")
1802		2347
1803	Returns wether the given player is authorized to access resource "access"	2348	Returns wether the given player is authorized to access resource "access"
…		…
1850	$self->deactivate_recursive;	2395	$self->deactivate_recursive;
1851		2396
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2397	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2398
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2399	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2400	if $self->map && $self->map->{path} ne "{link}";
1856		2401
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2402	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2403	}
1859		2404
1860	sub cf::object::player::leave_link {	2405	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2406	my ($self, $map, $x, $y) = @_;
		2407
		2408	return unless $self->contr->active;
1862		2409
1863	my $link_pos = delete $self->{_link_pos};	2410	my $link_pos = delete $self->{_link_pos};
1864		2411
1865	unless ($map) {	2412	unless ($map) {
1866	# restore original map position	2413	# restore original map position
…		…
1880	# use -1 or undef as default coordinates, not 0, 0	2427	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2428	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2429	if $x <=0 && $y <= 0;
1883		2430
1884	$map->load;	2431	$map->load;
1885	$map->load_diag;	2432	$map->load_neighbours;
1886		2433
1887	return unless $self->contr->active;	2434	return unless $self->contr->active;
1888	$self->activate_recursive;	2435	$self->activate_recursive;
1889		2436
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2437	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2438	$self->enter_map ($map, $x, $y);
1892	}	2439	}
1893		2440
1894	cf::player->attach (	2441	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	on_logout => sub {
1896	my ($pl) = @_;
1897		2442
1898	# abort map switching before logout	2443	Moves the player to the given map-path and coordinates by first freezing
1899	if ($pl->ob->{_link_pos}) {	2444	her, loading and preparing them map, calling the provided $check callback
1900	cf::sync_job {	2445	that has to return the map if sucecssful, and then unfreezes the player on
1901	$pl->ob->leave_link	2446	the new (success) or old (failed) map position. In either case, $done will
1902	};	2447	be called at the end of this process.
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2448
1908	# try to abort aborted map switching on player login :)
1909	# should happen only on crashes
1910	if ($pl->ob->{_link_pos}) {
1911	$pl->ob->enter_link;
1912	(async {
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925
1926	=item $player_object->goto ($path, $x, $y)
1927
1928	=cut	2449	=cut
		2450
		2451	our $GOTOGEN;
1929		2452
1930	sub cf::object::player::goto {	2453	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2454	my ($self, $path, $x, $y, $check, $done) = @_;
		2455
		2456	# do generation counting so two concurrent goto's will be executed in-order
		2457	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2458
1933	$self->enter_link;	2459	$self->enter_link;
1934		2460
1935	(async {	2461	(async {
		2462	$Coro::current->{desc} = "player::goto $path $x $y";
		2463
		2464	# *tag paths override both path and x|y
		2465	if ($path =~ /^\*(.*)$/) {
		2466	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2467	my $ob = $obs[rand @obs];
		2468
		2469	# see if we actually can go there
		2470	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2471	$ob = $obs[rand @obs];
		2472	} else {
		2473	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2474	}
		2475	# else put us there anyways for now #d#
		2476
		2477	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2478	} else {
		2479	($path, $x, $y) = (undef, undef, undef);
		2480	}
		2481	}
		2482
1936	my $map = eval {	2483	my $map = eval {
1937	my $map = cf::map::find $path;	2484	my $map = defined $path ? cf::map::find $path : undef;
		2485
		2486	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2487	$map = $map->customise_for ($self);
		2488	$map = $check->($map) if $check && $map;
		2489	} else {
		2490	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2491	}
		2492
1939	$map	2493	$map
		2494	};
		2495
		2496	if ($@) {
		2497	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2498	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2499	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2500
		2501	if ($gen == $self->{_goto_generation}) {
		2502	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2503	$self->leave_link ($map, $x, $y);
		2504	}
		2505
		2506	$done->() if $done;
1944	})->prio (1);	2507	})->prio (1);
1945	}	2508	}
1946		2509
1947	=item $player_object->enter_exit ($exit_object)	2510	=item $player_object->enter_exit ($exit_object)
1948		2511
…		…
1987		2550
1988	$rmp->{random_seed} ||= $exit->random_seed;	2551	$rmp->{random_seed} ||= $exit->random_seed;
1989		2552
1990	my $data = cf::to_json $rmp;	2553	my $data = cf::to_json $rmp;
1991	my $md5 = Digest::MD5::md5_hex $data;	2554	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2555	my $meta = "$RANDOMDIR/$md5.meta";
1993		2556
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2557	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2558	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2559	undef $fh;
1997	aio_rename "$meta~", $meta;	2560	aio_rename "$meta~", $meta;
…		…
2017	my $hp = $exit->stats->hp;	2580	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;	2581	my $sp = $exit->stats->sp;
2019		2582
2020	$self->enter_link;	2583	$self->enter_link;
2021		2584
		2585	# if exit is damned, update players death & WoR home-position
		2586	$self->contr->savebed ($slaying, $hp, $sp)
		2587	if $exit->flag (FLAG_DAMNED);
		2588
2022	(async {	2589	(async {
		2590	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2591
2023	$self->deactivate_recursive; # just to be sure	2592	$self->deactivate_recursive; # just to be sure
2024	unless (eval {	2593	unless (eval {
2025	$self->goto ($slaying, $hp, $sp);	2594	$self->goto ($slaying, $hp, $sp);
2026		2595
2027	1;	2596	1;
…		…
2053		2622
2054	utf8::encode $text;	2623	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2624	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2625	}
2057		2626
		2627	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2628
		2629	Send a drawinfo or msg packet to the client, formatting the msg for the
		2630	client if neccessary. C<$type> should be a string identifying the type of
		2631	the message, with C<log> being the default. If C<$color> is negative, suppress
		2632	the message unless the client supports the msg packet.
		2633
		2634	=cut
		2635
		2636	our %CHANNEL = (
		2637	"c/identify" => {
		2638	id => "identify",
		2639	title => "Identify",
		2640	reply => undef,
		2641	tooltip => "Items recently identified",
		2642	},
		2643	"c/examine" => {
		2644	id => "examine",
		2645	title => "Examine",
		2646	reply => undef,
		2647	tooltip => "Signs and other items you examined",
		2648	},
		2649	);
		2650
		2651	sub cf::client::send_msg {
		2652	my ($self, $channel, $msg, $color, @extra) = @_;
		2653
		2654	$msg = $self->pl->expand_cfpod ($msg);
		2655
		2656	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2657
		2658	# check predefined channels, for the benefit of C
		2659	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2660
		2661	if (ref $channel) {
		2662	# send meta info to client, if not yet sent
		2663	unless (exists $self->{channel}{$channel->{id}}) {
		2664	$self->{channel}{$channel->{id}} = $channel;
		2665	$self->ext_msg (channel_info => $channel)
		2666	if $self->can_msg;
		2667	}
		2668
		2669	$channel = $channel->{id};
		2670	}
		2671
		2672	return unless @extra || length $msg;
		2673
		2674	if ($self->can_msg) {
		2675	# default colour, mask it out
		2676	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2677	if $color & cf::NDI_DEF;
		2678
		2679	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2680	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2681	} else {
		2682	if ($color >= 0) {
		2683	# replace some tags by gcfclient-compatible ones
		2684	for ($msg) {
		2685	1 while
		2686	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2687	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2688	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2689	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2690	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2691	}
		2692
		2693	$color &= cf::NDI_COLOR_MASK;
		2694
		2695	utf8::encode $msg;
		2696
		2697	if (0 && $msg =~ /\[/) {
		2698	# COMMAND/INFO
		2699	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2700	} else {
		2701	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2702	$self->send_packet ("drawinfo $color $msg")
		2703	}
		2704	}
		2705	}
		2706	}
		2707
2058	=item $client->ext_event ($type, %msg)	2708	=item $client->ext_msg ($type, @msg)
2059		2709
2060	Sends an exti event to the client.	2710	Sends an ext event to the client.
2061		2711
2062	=cut	2712	=cut
2063		2713
2064	sub cf::client::ext_event($$%) {	2714	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2715	my ($self, $type, @msg) = @_;
2066		2716
		2717	if ($self->extcmd == 2) {
		2718	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2719	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2720	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2721	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2722	}
		2723	}
		2724
		2725	=item $client->ext_reply ($msgid, @msg)
		2726
		2727	Sends an ext reply to the client.
		2728
		2729	=cut
		2730
		2731	sub cf::client::ext_reply($$@) {
		2732	my ($self, $id, @msg) = @_;
		2733
		2734	if ($self->extcmd == 2) {
		2735	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2736	} elsif ($self->extcmd == 1) {
		2737	#TODO: version 1, remove
		2738	unshift @msg, msgtype => "reply", msgid => $id;
		2739	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2740	}
2069	}	2741	}
2070		2742
2071	=item $success = $client->query ($flags, "text", \&cb)	2743	=item $success = $client->query ($flags, "text", \&cb)
2072		2744
2073	Queues a query to the client, calling the given callback with	2745	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2746	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2747	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2748
2077	Queries can fail, so check the return code. Or don't, as queries will become	2749	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2750	become reliable at some point in the future.
2079		2751
2080	=cut	2752	=cut
2081		2753
2082	sub cf::client::query {	2754	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2755	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2763	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2764	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2765
2094	$self->send_packet ($self->{query_queue}[0][0])	2766	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2767	if @{ $self->{query_queue} } == 1;
		2768
		2769	1
2096	}	2770	}
2097		2771
2098	cf::client->attach (	2772	cf::client->attach (
		2773	on_connect => sub {
		2774	my ($ns) = @_;
		2775
		2776	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2777	},
2099	on_reply => sub {	2778	on_reply => sub {
2100	my ($ns, $msg) = @_;	2779	my ($ns, $msg) = @_;
2101		2780
2102	# this weird shuffling is so that direct followup queries	2781	# this weird shuffling is so that direct followup queries
2103	# get handled first	2782	# get handled first
…		…
2115	} else {	2794	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2795	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2796	}
2118	}	2797	}
2119	},	2798	},
		2799	on_exticmd => sub {
		2800	my ($ns, $buf) = @_;
		2801
		2802	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2803
		2804	if (ref $msg) {
		2805	my ($type, $reply, @payload) =
		2806	"ARRAY" eq ref $msg
		2807	? @$msg
		2808	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2809
		2810	my @reply;
		2811
		2812	if (my $cb = $EXTICMD{$type}) {
		2813	@reply = $cb->($ns, @payload);
		2814	}
		2815
		2816	$ns->ext_reply ($reply, @reply)
		2817	if $reply;
		2818
		2819	} else {
		2820	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2821	}
		2822
		2823	cf::override;
		2824	},
2120	);	2825	);
2121		2826
2122	=item $client->async (\&cb)	2827	=item $client->async (\&cb)
2123		2828
2124	Create a new coroutine, running the specified callback. The coroutine will	2829	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	2870	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	2871	our $safe_hole = new Safe::Hole;
2167		2872
2168	$SIG{FPE} = 'IGNORE';	2873	$SIG{FPE} = 'IGNORE';
2169		2874
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2875	$safe->permit_only (Opcode::opset qw(
		2876	:base_core :base_mem :base_orig :base_math
		2877	grepstart grepwhile mapstart mapwhile
		2878	sort time
		2879	));
2171		2880
2172	# here we export the classes and methods available to script code	2881	# here we export the classes and methods available to script code
2173		2882
2174	=pod	2883	=pod
2175		2884
2176	The following functions and methods are available within a safe environment:	2885	The following functions and methods are available within a safe environment:
2177		2886
2178	cf::object contr pay_amount pay_player map	2887	cf::object
		2888	contr pay_amount pay_player map x y force_find force_add
		2889	insert remove name archname title slaying race decrease_ob_nr
		2890
2179	cf::object::player player	2891	cf::object::player
2180	cf::player peaceful	2892	player
2181	cf::map trigger	2893
		2894	cf::player
		2895	peaceful
		2896
		2897	cf::map
		2898	trigger
2182		2899
2183	=cut	2900	=cut
2184		2901
2185	for (	2902	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	2903	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2904	insert remove inv name archname title slaying race
		2905	decrease_ob_nr)],
2187	["cf::object::player" => qw(player)],	2906	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	2907	["cf::player" => qw(peaceful)],
2189	["cf::map" => qw(trigger)],	2908	["cf::map" => qw(trigger)],
2190	) {	2909	) {
2191	no strict 'refs';	2910	no strict 'refs';
…		…
2262	=back	2981	=back
2263		2982
2264	=cut	2983	=cut
2265		2984
2266	#############################################################################	2985	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434
2435	#############################################################################
2436	# the server's init and main functions	2986	# the server's init and main functions
2437		2987
2438	sub load_facedata($) {	2988	sub load_facedata($) {
2439	my ($path) = @_;	2989	my ($path) = @_;
		2990
		2991	# HACK to clear player env face cache, we need some signal framework
		2992	# for this (global event?)
		2993	%ext::player_env::MUSIC_FACE_CACHE = ();
		2994
		2995	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2440		2996
2441	warn "loading facedata from $path\n";	2997	warn "loading facedata from $path\n";
2442		2998
2443	my $facedata;	2999	my $facedata;
2444	0 < aio_load $path, $facedata	3000	0 < aio_load $path, $facedata
…		…
2447	$facedata = Coro::Storable::thaw $facedata;	3003	$facedata = Coro::Storable::thaw $facedata;
2448		3004
2449	$facedata->{version} == 2	3005	$facedata->{version} == 2
2450	or cf::cleanup "$path: version mismatch, cannot proceed.";	3006	or cf::cleanup "$path: version mismatch, cannot proceed.";
2451		3007
		3008	# patch in the exptable
		3009	$facedata->{resource}{"res/exp_table"} = {
		3010	type => FT_RSRC,
		3011	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3012	};
		3013	cf::cede_to_tick;
		3014
2452	{	3015	{
2453	my $faces = $facedata->{faceinfo};	3016	my $faces = $facedata->{faceinfo};
2454		3017
2455	while (my ($face, $info) = each %$faces) {	3018	while (my ($face, $info) = each %$faces) {
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3019	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3020	cf::face::set_visibility $idx, $info->{visibility};
		3021	cf::face::set_magicmap $idx, $info->{magicmap};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3022	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3023	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2460	Coro::cede;	3024
		3025	cf::cede_to_tick;
2461	}	3026	}
2462		3027
2463	while (my ($face, $info) = each %$faces) {	3028	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	3029	next unless $info->{smooth};
2465	my $idx = cf::face::find $face	3030	my $idx = cf::face::find $face
2466	or next;	3031	or next;
2467	if (my $smooth = cf::face::find $info->{smooth}) {	3032	if (my $smooth = cf::face::find $info->{smooth}) {
		3033	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3034	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	3035	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	3036	warn "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	3037	}
2472	Coro::cede;	3038
		3039	cf::cede_to_tick;
2473	}	3040	}
2474	}	3041	}
2475		3042
2476	{	3043	{
2477	my $anims = $facedata->{animinfo};	3044	my $anims = $facedata->{animinfo};
2478		3045
2479	while (my ($anim, $info) = each %$anims) {	3046	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	3047	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;	3048	cf::cede_to_tick;
2482	}	3049	}
2483		3050
2484	cf::anim::invalidate_all; # d'oh	3051	cf::anim::invalidate_all; # d'oh
2485	}	3052	}
2486		3053
		3054	{
		3055	# TODO: for gcfclient pleasure, we should give resources
		3056	# that gcfclient doesn't grok a >10000 face index.
		3057	my $res = $facedata->{resource};
		3058
		3059	my $soundconf = delete $res->{"res/sound.conf"};
		3060
		3061	while (my ($name, $info) = each %$res) {
		3062	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3063	my $data;
		3064
		3065	if ($info->{type} & 1) {
		3066	# prepend meta info
		3067
		3068	my $meta = $enc->encode ({
		3069	name => $name,
		3070	%{ $info->{meta} || {} },
		3071	});
		3072
		3073	$data = pack "(w/a*)*", $meta, $info->{data};
		3074	} else {
		3075	$data = $info->{data};
		3076	}
		3077
		3078	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3079	cf::face::set_type $idx, $info->{type};
		3080
		3081	cf::cede_to_tick;
		3082	}
		3083
		3084	if ($soundconf) {
		3085	$soundconf = $enc->decode (delete $soundconf->{data});
		3086
		3087	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3088	my $sound = $soundconf->{compat}[$_]
		3089	or next;
		3090
		3091	my $face = cf::face::find "sound/$sound->[1]";
		3092	cf::sound::set $sound->[0] => $face;
		3093	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3094	}
		3095
		3096	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3097	my $face = cf::face::find "sound/$v";
		3098	cf::sound::set $k => $face;
		3099	}
		3100	}
		3101	}
		3102
2487	1	3103	1
2488	}	3104	}
2489		3105
		3106	register_exticmd fx_want => sub {
		3107	my ($ns, $want) = @_;
		3108
		3109	while (my ($k, $v) = each %$want) {
		3110	$ns->fx_want ($k, $v);
		3111	}
		3112	};
		3113
		3114	sub reload_regions {
		3115	# HACK to clear player env face cache, we need some signal framework
		3116	# for this (global event?)
		3117	%ext::player_env::MUSIC_FACE_CACHE = ();
		3118
		3119	load_resource_file "$MAPDIR/regions"
		3120	or die "unable to load regions file\n";
		3121
		3122	for (cf::region::list) {
		3123	$_->{match} = qr/$_->{match}/
		3124	if exists $_->{match};
		3125	}
		3126	}
		3127
2490	sub reload_facedata {	3128	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	3129	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	3130	or die "unable to load facedata\n";
2493	}	3131	}
2494		3132
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	3133	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	3134	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	3135	or die "unable to load archetypes\n";
		3136	#d# NEED to laod twice to resolve forward references
		3137	# this really needs to be done in an extra post-pass
		3138	# (which needs to be synchronous, so solve it differently)
		3139	load_resource_file "$DATADIR/archetypes"
		3140	or die "unable to load archetypes\n";
2503	}	3141	}
2504		3142
2505	sub reload_treasures {	3143	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	3144	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	3145	or die "unable to load treasurelists\n";
2508	}	3146	}
2509		3147
2510	sub reload_resources {	3148	sub reload_resources {
2511	warn "reloading resource files...\n";	3149	warn "reloading resource files...\n";
2512		3150
2513	reload_regions;	3151	reload_regions;
2514	reload_facedata;	3152	reload_facedata;
		3153	#reload_archetypes;#d#
2515	reload_archetypes;	3154	reload_archetypes;
2516	reload_treasures;	3155	reload_treasures;
2517		3156
2518	warn "finished reloading resource files\n";	3157	warn "finished reloading resource files\n";
2519	}	3158	}
2520		3159
2521	sub init {	3160	sub init {
2522	reload_resources;	3161	reload_resources;
2523	}	3162	}
2524		3163
2525	sub cfg_load {	3164	sub reload_config {
2526	open my $fh, "<:utf8", cf::confdir . "/config"	3165	open my $fh, "<:utf8", "$CONFDIR/config"
2527	or return;	3166	or return;
2528		3167
2529	local $/;	3168	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;	3169	*CFG = YAML::Syck::Load <$fh>;
2531		3170
…		…
2546	sub main {	3185	sub main {
2547	# we must not ever block the main coroutine	3186	# we must not ever block the main coroutine
2548	local $Coro::idle = sub {	3187	local $Coro::idle = sub {
2549	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3188	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2550	(async {	3189	(async {
		3190	$Coro::current->{desc} = "IDLE BUG HANDLER";
2551	Event::one_event;	3191	Event::one_event;
2552	})->prio (Coro::PRIO_MAX);	3192	})->prio (Coro::PRIO_MAX);
2553	};	3193	};
2554		3194
2555	cfg_load;	3195	reload_config;
2556	db_init;	3196	db_init;
2557	load_extensions;	3197	load_extensions;
2558		3198
2559	$TICK_WATCHER->start;	3199	$TICK_WATCHER->start;
2560	Event::loop;	3200	Event::loop;
…		…
2576	},	3216	},
2577	);	3217	);
2578	}	3218	}
2579	}	3219	}
2580		3220
		3221	sub write_runtime {
		3222	my $runtime = "$LOCALDIR/runtime";
		3223
		3224	# first touch the runtime file to show we are still running:
		3225	# the fsync below can take a very very long time.
		3226
		3227	IO::AIO::aio_utime $runtime, undef, undef;
		3228
		3229	my $guard = cf::lock_acquire "write_runtime";
		3230
		3231	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3232	or return;
		3233
		3234	my $value = $cf::RUNTIME + 90 + 10;
		3235	# 10 is the runtime save interval, for a monotonic clock
		3236	# 60 allows for the watchdog to kill the server.
		3237
		3238	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3239	and return;
		3240
		3241	# always fsync - this file is important
		3242	aio_fsync $fh
		3243	and return;
		3244
		3245	# touch it again to show we are up-to-date
		3246	aio_utime $fh, undef, undef;
		3247
		3248	close $fh
		3249	or return;
		3250
		3251	aio_rename "$runtime~", $runtime
		3252	and return;
		3253
		3254	warn "runtime file written.\n";
		3255
		3256	1
		3257	}
		3258
2581	sub emergency_save() {	3259	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	3260	my $freeze_guard = cf::freeze_mainloop;
2583		3261
2584	warn "enter emergency perl save\n";	3262	warn "enter emergency perl save\n";
2585		3263
…		…
2660	%EXT_CORO = ();	3338	%EXT_CORO = ();
2661		3339
2662	warn "removing commands";	3340	warn "removing commands";
2663	%COMMAND = ();	3341	%COMMAND = ();
2664		3342
2665	warn "removing ext commands";	3343	warn "removing ext/exti commands";
2666	%EXTCMD = ();	3344	%EXTCMD = ();
		3345	%EXTICMD = ();
2667		3346
2668	warn "unloading/nuking all extensions";	3347	warn "unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {	3348	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";	3349	warn "... unloading $pkg";
2671		3350
…		…
2701	Symbol::delete_package "safe::$_"	3380	Symbol::delete_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3381	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		3382
2704	warn "unloading cf.pm \"a bit\"";	3383	warn "unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	3384	delete $INC{"cf.pm"};
		3385	delete $INC{"cf/pod.pm"};
2706		3386
2707	# don't, removes xs symbols, too,	3387	# don't, removes xs symbols, too,
2708	# and global variables created in xs	3388	# and global variables created in xs
2709	#Symbol::delete_package __PACKAGE__;	3389	#Symbol::delete_package __PACKAGE__;
2710		3390
…		…
2713	warn "reloading cf.pm";	3393	warn "reloading cf.pm";
2714	require cf;	3394	require cf;
2715	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3395	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2716		3396
2717	warn "loading config and database again";	3397	warn "loading config and database again";
2718	cf::cfg_load;	3398	cf::reload_config;
2719		3399
2720	warn "loading extensions";	3400	warn "loading extensions";
2721	cf::load_extensions;	3401	cf::load_extensions;
2722		3402
2723	warn "reattaching attachments to objects/players";	3403	warn "reattaching attachments to objects/players";
…		…
2759	register_command "reload" => sub {	3439	register_command "reload" => sub {
2760	my ($who, $arg) = @_;	3440	my ($who, $arg) = @_;
2761		3441
2762	if ($who->flag (FLAG_WIZ)) {	3442	if ($who->flag (FLAG_WIZ)) {
2763	$who->message ("reloading server.");	3443	$who->message ("reloading server.");
		3444	async {
		3445	$Coro::current->{desc} = "perl_reload";
2764	async { reload_perl };	3446	reload_perl;
		3447	};
2765	}	3448	}
2766	};	3449	};
2767		3450
2768	unshift @INC, $LIBDIR;	3451	unshift @INC, $LIBDIR;
2769		3452
…		…
2801	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3484	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2802	unless ++$bug_warning > 10;	3485	unless ++$bug_warning > 10;
2803	return;	3486	return;
2804	}	3487	}
2805		3488
2806	$NOW = Event::time;	3489	$NOW = $tick_start = Event::time;
2807		3490
2808	cf::server_tick; # one server iteration	3491	cf::server_tick; # one server iteration
2809		3492
2810	$RUNTIME += $TICK;	3493	$RUNTIME += $TICK;
2811	$NEXT_TICK += $TICK;	3494	$NEXT_TICK += $TICK;
2812		3495
2813	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3496	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2814	$NEXT_RUNTIME_WRITE = $NOW + 10;	3497	$NEXT_RUNTIME_WRITE = $NOW + 10;
2815	Coro::async_pool {	3498	Coro::async_pool {
		3499	$Coro::current->{desc} = "runtime saver";
2816	write_runtime	3500	write_runtime
2817	or warn "ERROR: unable to write runtime file: $!";	3501	or warn "ERROR: unable to write runtime file: $!";
2818	};	3502	};
2819	}	3503	}
2820		3504
2821	# my $AFTER = Event::time;	3505	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2822	# warn $AFTER - $NOW;#d#	3506	$sig->send;
		3507	}
		3508	while (my $sig = shift @WAIT_FOR_TICK) {
		3509	$sig->send;
		3510	}
		3511
		3512	$NOW = Event::time;
2823		3513
2824	# if we are delayed by four ticks or more, skip them all	3514	# if we are delayed by four ticks or more, skip them all
2825	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3515	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2826		3516
2827	$TICK_WATCHER->at ($NEXT_TICK);	3517	$TICK_WATCHER->at ($NEXT_TICK);
2828	$TICK_WATCHER->start;	3518	$TICK_WATCHER->start;
2829		3519
2830	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3520	$LOAD = ($NOW - $tick_start) / $TICK;
2831	$sig->send;	3521	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2832	}
2833	while (my $sig = shift @WAIT_FOR_TICK) {
2834	$sig->send;
2835	}
2836		3522
2837	_post_tick;	3523	_post_tick;
2838	},	3524	},
2839	);	3525	);
2840		3526
2841	{	3527	{
		3528	BDB::min_parallel 8;
2842	BDB::max_poll_time $TICK * 0.1;	3529	BDB::max_poll_time $TICK * 0.1;
2843	$BDB_POLL_WATCHER = Event->io (	3530	$BDB_POLL_WATCHER = Event->io (
2844	reentrant => 0,	3531	reentrant => 0,
2845	fd => BDB::poll_fileno,	3532	fd => BDB::poll_fileno,
2846	poll => 'r',	3533	poll => 'r',
2847	prio => 0,	3534	prio => 0,
2848	data => WF_AUTOCANCEL,	3535	data => WF_AUTOCANCEL,
2849	cb => \&BDB::poll_cb,	3536	cb => \&BDB::poll_cb,
2850	);	3537	);
2851	BDB::min_parallel 8;
2852		3538
2853	BDB::set_sync_prepare {	3539	BDB::set_sync_prepare {
2854	my $status;	3540	my $status;
2855	my $current = $Coro::current;	3541	my $current = $Coro::current;
2856	(	3542	(
…		…
2865	)	3551	)
2866	};	3552	};
2867		3553
2868	unless ($DB_ENV) {	3554	unless ($DB_ENV) {
2869	$DB_ENV = BDB::db_env_create;	3555	$DB_ENV = BDB::db_env_create;
		3556	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3557	| BDB::LOG_AUTOREMOVE, 1);
		3558	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3559	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2870		3560
2871	cf::sync_job {	3561	cf::sync_job {
2872	eval {	3562	eval {
2873	BDB::db_env_open	3563	BDB::db_env_open
2874	$DB_ENV,	3564	$DB_ENV,
2875	$BDB_ENV_DIR,	3565	$BDBDIR,
2876	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3566	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2877	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3567	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2878	0666;	3568	0666;
2879		3569
2880	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3570	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2881
2882	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2883	$DB_ENV->set_lk_detect;
2884	};	3571	};
2885		3572
2886	cf::cleanup "db_env_open(db): $@" if $@;	3573	cf::cleanup "db_env_open(db): $@" if $@;
2887	};	3574	};
2888	}	3575	}
		3576
		3577	$BDB_DEADLOCK_WATCHER = Event->timer (
		3578	after => 3,
		3579	interval => 1,
		3580	hard => 1,
		3581	prio => 0,
		3582	data => WF_AUTOCANCEL,
		3583	cb => sub {
		3584	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3585	},
		3586	);
		3587	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3588	after => 11,
		3589	interval => 60,
		3590	hard => 1,
		3591	prio => 0,
		3592	data => WF_AUTOCANCEL,
		3593	cb => sub {
		3594	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3595	},
		3596	);
		3597	$BDB_TRICKLE_WATCHER = Event->timer (
		3598	after => 5,
		3599	interval => 10,
		3600	hard => 1,
		3601	prio => 0,
		3602	data => WF_AUTOCANCEL,
		3603	cb => sub {
		3604	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3605	},
		3606	);
2889	}	3607	}
2890		3608
2891	{	3609	{
2892	IO::AIO::min_parallel 8;	3610	IO::AIO::min_parallel 8;
2893		3611
…		…
2901	prio => 6,	3619	prio => 6,
2902	cb => \&IO::AIO::poll_cb,	3620	cb => \&IO::AIO::poll_cb,
2903	);	3621	);
2904	}	3622	}
2905		3623
		3624	my $_log_backtrace;
		3625
		3626	sub _log_backtrace {
		3627	my ($msg, @addr) = @_;
		3628
		3629	$msg =~ s/\n//;
		3630
		3631	# limit the # of concurrent backtraces
		3632	if ($_log_backtrace < 2) {
		3633	++$_log_backtrace;
		3634	async {
		3635	$Coro::current->{desc} = "abt $msg";
		3636
		3637	my @bt = fork_call {
		3638	@addr = map { sprintf "%x", $_ } @addr;
		3639	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3640	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3641	or die "addr2line: $!";
		3642
		3643	my @funcs;
		3644	my @res = <$fh>;
		3645	chomp for @res;
		3646	while (@res) {
		3647	my ($func, $line) = splice @res, 0, 2, ();
		3648	push @funcs, "[$func] $line";
		3649	}
		3650
		3651	@funcs
		3652	};
		3653
		3654	LOG llevInfo, "[ABT] $msg\n";
		3655	LOG llevInfo, "[ABT] $_\n" for @bt;
		3656	--$_log_backtrace;
		3657	};
		3658	} else {
		3659	LOG llevInfo, "[ABT] $msg\n";
		3660	LOG llevInfo, "[ABT] [suppressed]\n";
		3661	}
		3662	}
		3663
2906	# load additional modules	3664	# load additional modules
2907	use cf::pod;	3665	use cf::pod;
2908		3666
2909	END { cf::emergency_save }	3667	END { cf::emergency_save }
2910		3668

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