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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.235 by root, Tue Apr 10 09:35:23 2007 UTC vs.
Revision 1.366 by root, Tue Sep 11 16:05:35 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.52 ();	15	use Coro 3.64 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
21		25
		26	use JSON::XS ();
22	use BDB ();	27	use BDB ();
23	use Data::Dumper;	28	use Data::Dumper;
24	use Digest::MD5;	29	use Digest::MD5;
25	use Fcntl;	30	use Fcntl;
26	use YAML::Syck ();	31	use YAML::Syck ();
27	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
28	use Time::HiRes;	33	use Time::HiRes;
29	use Compress::LZF;	34	use Compress::LZF;
		35	use Digest::MD5 ();
30		36
31	# configure various modules to our taste	37	# configure various modules to our taste
32	#	38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
33	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
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		42
36	$Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
37		44
…		…
45	our %COMMAND = ();	52	our %COMMAND = ();
46	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
47		54
48	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
52		60
53	our $RELOAD; # number of reloads so far	61	our $RELOAD; # number of reloads so far
54	our @EVENT;	62	our @EVENT;
55	our $LIBDIR = datadir . "/ext";
56		63
57	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
58	our $TICK_WATCHER;	77	our $TICK_WATCHER;
59	our $AIO_POLL_WATCHER;	78	our $AIO_POLL_WATCHER;
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	80	our $NEXT_TICK;
62	our $NOW;	81	our $NOW;
63	our $USE_FSYNC = 1; # use fsync to write maps - default off	82	our $USE_FSYNC = 1; # use fsync to write maps - default off
64		83
65	our $BDB_POLL_WATCHER;	84	our $BDB_POLL_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
66	our $DB_ENV;	87	our $DB_ENV;
67		88
68	our %CFG;	89	our %CFG;
69		90
70	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
71	our $RUNTIME;	92	our $RUNTIME;
72		93
73	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
74	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	96	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		97
82	# used to convert map paths into valid unix filenames by replacing / by ∕	98	# used to convert map paths into valid unix filenames by replacing / by ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
		104
85	binmode STDOUT;	105	binmode STDOUT;
86	binmode STDERR;	106	binmode STDERR;
87		107
88	# read virtual server time, if available	108	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
90	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
91	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
92	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
93	}	113	}
94		114
95	mkdir cf::localdir;	115	mkdir $_
96	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
97	mkdir cf::localdir . "/" . cf::tmpdir;
98	mkdir cf::localdir . "/" . cf::uniquedir;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		117
102	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
103		119
104	sub cf::map::normalise;	120	sub cf::map::normalise;
105		121
…		…
116	=item $cf::RUNTIME	132	=item $cf::RUNTIME
117		133
118	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
119	every server tick.	135	every server tick.
120		136
121	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
122		140
123	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
124	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
125		145
126	=item $cf::NOW	146	=item $cf::NOW
127		147
128	The time of the last (current) server tick.	148	The time of the last (current) server tick.
129		149
130	=item $cf::TICK	150	=item $cf::TICK
131		151
132	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
133		163
134	=item %cf::CFG	164	=item %cf::CFG
135		165
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
137	from wherever your confdir points to.	167	from wherever your confdir points to.
138		168
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		170
141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	172	returns directly I<after> the tick processing (and consequently, can only wake one process
143	processing has been done. Call C<< ->wait >> on them to maximise the	173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
144	window of cpu time available, or simply to synchronise to the server tick.	174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
145		180
146	=back	181	=back
147		182
148	=cut	183	=cut
149		184
150	BEGIN {	185	BEGIN {
151	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	187	my $msg = join "", @_;
153	utf8::encode $msg;
154		188
155	$msg .= "\n"	189	$msg .= "\n"
156	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
157		193
158	LOG llevError, $msg;	194	LOG llevError, $msg;
159	};	195	};
160	}	196	}
161		197
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
167	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
168		205
169	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
170	# within the Safe compartment.	207	# within the Safe compartment.
171	for my $pkg (qw(	208	for my $pkg (qw(
172	cf::global cf::attachable	209	cf::global cf::attachable
…		…
180	}	217	}
181		218
182	$Event::DIED = sub {	219	$Event::DIED = sub {
183	warn "error in event callback: @_";	220	warn "error in event callback: @_";
184	};	221	};
		222
		223	#############################################################################
185		224
186	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
187		226
188	=over 4	227	=over 4
189		228
…		…
208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209	$d	248	$d
210	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
211	}	250	}
212		251
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
214
215	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
216		253
217	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
218		255
219	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
220		257
221	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
		259
		260	=cut
		261
		262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		263
		264	sub to_json ($) { $json_coder->encode ($_[0]) }
		265	sub from_json ($) { $json_coder->decode ($_[0]) }
222		266
223	=item cf::lock_wait $string	267	=item cf::lock_wait $string
224		268
225	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
226		270
…		…
229	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
230	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
231	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
232	returned.	276	returned.
233		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
234	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
235	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
236		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
237	=cut	288	=cut
238		289
239	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
240		292
241	sub lock_wait($) {	293	sub lock_wait($) {
242	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
243		300
244	# wait for lock, if any	301	# wait for lock, if any
245	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
246	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
247	Coro::schedule;	304	Coro::schedule;
…		…
253		310
254	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
255	lock_wait $key;	312	lock_wait $key;
256		313
257	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
258		316
259	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
260	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
262	}	321	}
		322	}
		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
263	}	328	}
264		329
265	sub freeze_mainloop {	330	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
267		332
…		…
270	};	335	};
271	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
272	$guard	337	$guard
273	}	338	}
274		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
		394	}
		395
275	=item cf::async { BLOCK }	396	=item cf::async { BLOCK }
276		397
277	Currently the same as Coro::async_pool, meaning you cannot use	398	Currently the same as Coro::async_pool, meaning you cannot use
278	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	399	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
279	thing you are allowed to do is call C<prio> on it.	400	thing you are allowed to do is call C<prio> on it.
…		…
282		403
283	BEGIN { *async = \&Coro::async_pool }	404	BEGIN { *async = \&Coro::async_pool }
284		405
285	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
286		407
287	The design of crossfire+ requires that the main coro ($Coro::main) is	408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	409	is always able to handle events or runnable, as Crossfire TRT is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
290		412
291	If it must be done, put the blocking parts into C<sync_job>. This will run	413	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	414	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	415	server will be frozen during this time, so the block should either finish
294	fast or be very important.	416	fast or be very important.
…		…
297		419
298	sub sync_job(&) {	420	sub sync_job(&) {
299	my ($job) = @_;	421	my ($job) = @_;
300		422
301	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
302	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
304		428
305	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	430	# (but this is cancel-safe)
…		…
317		441
318	while ($busy) {	442	while ($busy) {
319	Coro::cede or Event::one_event;	443	Coro::cede or Event::one_event;
320	}	444	}
321		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
		452
322	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
323	} else {	454	} else {
324	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
325		456
326	$job->()	457	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
346		477
347	$coro	478	$coro
348	}	479	}
349		480
350	sub write_runtime {	481	=item fork_call { }, $args
351	my $guard = cf::lock_acquire "write_runtime";
352		482
353	my $runtime = cf::localdir . "/runtime";	483	Executes the given code block with the given arguments in a seperate
		484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
354		487
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	488	=cut
356	or return;
357		489
358	my $value = $cf::RUNTIME + 90 + 10;	490	sub fork_call(&@) {
359	# 10 is the runtime save interval, for a monotonic clock	491	my ($cb, @args) = @_;
360	# 60 allows for the watchdog to kill the server.
361		492
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	493	# we seemingly have to make a local copy of the whole thing,
363	and return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
364		496
365	# always fsync - this file is important	497	my @res = Coro::Util::fork_eval {
366	aio_fsync $fh	498	reset_signals;
367	and return;	499	&$cb
		500	}, @args;
368		501
369	close $fh	502	wantarray ? @res : $res[-1]
370	or return;	503	}
371		504
372	aio_rename "$runtime~", $runtime	505	=item $value = cf::db_get $family => $key
373	and return;
374		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
375	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
376	}	630	}
377		631
378	=item cf::datalog type => key => value, ...	632	=item cf::datalog type => key => value, ...
379		633
380	Log a datalog packet of the given type with the given key-value pairs.	634	Log a datalog packet of the given type with the given key-value pairs.
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
400		654
401	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	657	Crossfire TRT).
404		658
405	=over 4	659	=over 4
406		660
407	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
408		662
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
572		826
573	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		831
578	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	833	my $pkg = shift @arg;
580		834
581	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
611	}	865	}
612		866
613	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
614	} else {	868	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	870	}
617		871
618	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
619	}	873	}
620		874
…		…
622	if (ref $_[0]) {	876	if (ref $_[0]) {
623	_object_attach @_;	877	_object_attach @_;
624	} else {	878	} else {
625	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
626	}	880	}
		881	_recalc_want;
627	};	882	};
628		883
629	# all those should be optimised	884	# all those should be optimised
630	sub cf::attachable::detach {	885	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
635	reattach ($obj);	890	reattach ($obj);
636	} else {	891	} else {
637	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
638	}	893	}
		894	_recalc_want;
639	};	895	};
640		896
641	sub cf::attachable::attached {	897	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
643		899
…		…
658	";	914	";
659	die if $@;	915	die if $@;
660	}	916	}
661		917
662	our $override;	918	our $override;
663	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
664		920
665	sub override {	921	sub override {
666	$override = 1;	922	$override = 1;
667	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
668	}	924	}
669		925
670	sub do_invoke {	926	sub do_invoke {
671	my $event = shift;	927	my $event = shift;
672	my $callbacks = shift;	928	my $callbacks = shift;
673		929
674	@invoke_results = ();	930	@INVOKE_RESULTS = ();
675		931
676	local $override;	932	local $override;
677		933
678	for (@$callbacks) {	934	for (@$callbacks) {
679	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
696		952
697	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
698		954
699	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
700	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
701	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		958
703	=back	959	=back
704		960
705	=cut	961	=cut
706		962
707	#############################################################################	963	#############################################################################
708	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
709		976
710	sub reattach {	977	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	979	my ($obj) = @_;
713		980
…		…
758	);	1025	);
759		1026
760	sub object_freezer_save {	1027	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
762		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
763	sync_job {	1032	sync_job {
764	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
767		1037
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	aio_fsync $fh if $cf::USE_FSYNC;	1041	aio_fsync $fh if $cf::USE_FSYNC;
…		…
790	}	1060	}
791	} else {	1061	} else {
792	aio_unlink $filename;	1062	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
794	}	1064	}
795	}	1065	};
		1066
		1067	undef $guard;
796	}	1068	}
797		1069
798	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
800		1072
…		…
805		1077
806	sub object_thawer_load {	1078	sub object_thawer_load {
807	my ($filename) = @_;	1079	my ($filename) = @_;
808		1080
809	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
810		1084
811	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
812	or return;	1086	or return;
813		1087
814	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
816	or return;	1090	or return;
		1091
		1092	undef $guard;
817	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
818	}	1094	}
819		1095
		1096	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
822	return ($data, $av);	1100	($data, $av)
823	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
824		1108
825	#############################################################################	1109	#############################################################################
826	# command handling &c	1110	# command handling &c
827		1111
828	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1126	}
843		1127
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1129
846	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
847		1135
848	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
849	called.	1137	called.
850		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
851	=cut	1150	=cut
852		1151
853	sub register_extcmd {	1152	sub register_extcmd {
854	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
855		1154
856	$EXTCMD{$name} = $cb;	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
857	}	1162	}
858		1163
859	cf::player->attach (	1164	cf::player->attach (
860	on_command => sub {	1165	on_command => sub {
861	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
870	cf::override;	1175	cf::override;
871	},	1176	},
872	on_extcmd => sub {	1177	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
874		1179
875	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1181
877	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
880	$pl->ext_reply ($msg->{msgid}, %reply);
881	}
882	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
883	} else {	1197	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1199	}
886		1200
887	cf::override;	1201	cf::override;
888	},	1202	},
889	);	1203	);
890		1204
891	sub load_extension {
892	my ($path) = @_;
893
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
895	my $base = $1;
896	my $pkg = $1;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}
919	die $@;
920	}
921
922	push @EXTS, $pkg;
923	}
924
925	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
926	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1210	next unless -r $path;
928	eval {	1211
929	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
930	1	1269	}
931	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
932	}	1275	};
933	}	1276	}
934		1277
935	#############################################################################	1278	#############################################################################
936		1279
		1280	=back
		1281
937	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
938		1283
939	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
940		1285
941	=cut	1286	=cut
…		…
946		1291
947	=head3 cf::player	1292	=head3 cf::player
948		1293
949	=over 4	1294	=over 4
950		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
951	=item cf::player::find $login	1310	=item cf::player::find $login
952		1311
953	Returns the given player object, loading it if necessary (might block).	1312	Returns the given player object, loading it if necessary (might block).
954		1313
955	=cut	1314	=cut
956		1315
957	sub playerdir($) {	1316	sub playerdir($) {
958	cf::localdir	1317	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1319	}
964		1320
965	sub path($) {	1321	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
993	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
994	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
995	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
996	aio_unlink +(playerdir $login) . "/$login.pl";	1352	aio_unlink +(playerdir $login) . "/$login.pl";
997		1353
998	my $pl = load_pl path $login	1354	my $f = new_from_file cf::object::thawer path $login
999	or return;	1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
1000	$cf::PLAYER{$login} = $pl	1362	$cf::PLAYER{$login} = $pl
1001	}	1363	}
1002	}	1364	}
1003	}	1365	}
1004		1366
…		…
1014		1376
1015	aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
1016	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
1017		1379
1018	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
1019	Coro::cede;	1381	cf::cede_to_tick;
1020	}	1382	}
1021		1383
1022	sub new($) {	1384	sub new($) {
1023	my ($login) = @_;	1385	my ($login) = @_;
1024		1386
…		…
1028	$self->{deny_save} = 1;	1390	$self->{deny_save} = 1;
1029		1391
1030	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1031		1393
1032	$self	1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
1033	}	1405	}
1034		1406
1035	=item $pl->quit_character	1407	=item $pl->quit_character
1036		1408
1037	Nukes the player without looking back. If logged in, the connection will	1409	Nukes the player without looking back. If logged in, the connection will
…		…
1086	while and may block, so not sync_job-capable, ever.	1458	while and may block, so not sync_job-capable, ever.
1087		1459
1088	=cut	1460	=cut
1089		1461
1090	sub list_logins {	1462	sub list_logins {
1091	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1463	my $dirs = aio_readdir $PLAYERDIR
1092	or return [];	1464	or return [];
1093		1465
1094	my @logins;	1466	my @logins;
1095		1467
1096	for my $login (@$dirs) {	1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
1097	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1098	aio_read $fh, 0, 512, my $buf, 0 or next;	1474	aio_read $fh, 0, 512, my $buf, 0 or next;
1099	$buf !~ /^password -------------$/m or next; # official not-valid tag	1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
1100		1477
1101	utf8::decode $login;	1478	utf8::decode $login;
1102	push @logins, $login;	1479	push @logins, $login;
1103	}	1480	}
1104		1481
…		…
1131	}	1508	}
1132		1509
1133	\@paths	1510	\@paths
1134	}	1511	}
1135		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
1136	=item $player->ext_reply ($msgid, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1137		1565
1138	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1139		1567
1140	=cut	1568	=cut
1141		1569
1142	sub ext_reply($$%) {	1570	sub ext_reply($$@) {
1143	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1144		1572
1145	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1146
1147	$self->send ("ext " . cf::to_json \%msg);
1148	}	1574	}
1149		1575
1150	=item $player->ext_event ($type, %msg)	1576	=item $player->ext_msg ($type, @msg)
1151		1577
1152	Sends an ext event to the client.	1578	Sends an ext event to the client.
1153		1579
1154	=cut	1580	=cut
1155		1581
1156	sub ext_event($$%) {	1582	sub ext_msg($$@) {
1157	my ($self, $type, %msg) = @_;	1583	my ($self, $type, @msg) = @_;
1158		1584
1159	$self->ns->ext_event ($type, %msg);	1585	$self->ns->ext_msg ($type, @msg);
1160	}	1586	}
1161		1587
1162	package cf;	1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
		1603	my ($path) = @_;
		1604
		1605	my ($match, $specificity);
		1606
		1607	for my $region (list) {
		1608	if ($region->{match} && $path =~ $region->{match}) {
		1609	($match, $specificity) = ($region, $region->specificity)
		1610	if $region->specificity > $specificity;
		1611	}
		1612	}
		1613
		1614	$match
		1615	}
1163		1616
1164	=back	1617	=back
1165
1166		1618
1167	=head3 cf::map	1619	=head3 cf::map
1168		1620
1169	=over 4	1621	=over 4
1170		1622
…		…
1225	my ($self, $merge) = @_;	1677	my ($self, $merge) = @_;
1226		1678
1227	# we have to keep some variables in memory intact	1679	# we have to keep some variables in memory intact
1228	local $self->{path};	1680	local $self->{path};
1229	local $self->{load_path};	1681	local $self->{load_path};
1230	local $self->{deny_save};
1231	local $self->{deny_reset};
1232		1682
1233	$self->SUPER::thawer_merge ($merge);	1683	$self->SUPER::thawer_merge ($merge);
1234	}	1684	}
1235		1685
1236	sub normalise {	1686	sub normalise {
…		…
1283	$self->init; # pass $1 etc.	1733	$self->init; # pass $1 etc.
1284	return $self;	1734	return $self;
1285	}	1735	}
1286	}	1736	}
1287		1737
1288	Carp::carp "unable to resolve path '$path' (base '$base').";	1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
1289	()	1739	()
1290	}	1740	}
1291		1741
1292	sub init {	1742	sub init {
1293	my ($self) = @_;	1743	my ($self) = @_;
…		…
1308		1758
1309	# the original (read-only) location	1759	# the original (read-only) location
1310	sub load_path {	1760	sub load_path {
1311	my ($self) = @_;	1761	my ($self) = @_;
1312		1762
1313	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1763	"$MAPDIR/$self->{path}.map"
1314	}	1764	}
1315		1765
1316	# the temporary/swap location	1766	# the temporary/swap location
1317	sub save_path {	1767	sub save_path {
1318	my ($self) = @_;	1768	my ($self) = @_;
1319		1769
1320	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1321	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1771	"$TMPDIR/$path.map"
1322	}	1772	}
1323		1773
1324	# the unique path, undef == no special unique path	1774	# the unique path, undef == no special unique path
1325	sub uniq_path {	1775	sub uniq_path {
1326	my ($self) = @_;	1776	my ($self) = @_;
1327		1777
1328	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1329	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1779	"$UNIQUEDIR/$path"
1330	}	1780	}
1331		1781
1332	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1333	# all maps in C++...	1783	# all maps in C++...
1334	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1336		1786
1337	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1338	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1339	}	1789	}
1340		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
1341	sub unlink_save {	1799	sub unlink_save {
1342	my ($self) = @_;	1800	my ($self) = @_;
1343		1801
1344	utf8::encode (my $save = $self->save_path);	1802	utf8::encode (my $save = $self->save_path);
1345	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1348		1806
1349	sub load_header_from($) {	1807	sub load_header_from($) {
1350	my ($self, $path) = @_;	1808	my ($self, $path) = @_;
1351		1809
1352	utf8::encode $path;	1810	utf8::encode $path;
1353	#aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1354	# or return;
1355
1356	$self->_load_header ($path)
1357	or return;	1812	or return;
		1813
		1814	$self->_load_header ($f)
		1815	or return;
		1816
		1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
1358		1819
1359	$self->{load_path} = $path;	1820	$self->{load_path} = $path;
1360		1821
1361	1	1822	1
1362	}	1823	}
…		…
1401	$self->load_header_orig	1862	$self->load_header_orig
1402	or return;	1863	or return;
1403	$self->prepare_orig;	1864	$self->prepare_orig;
1404	}	1865	}
1405		1866
		1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
		1869
		1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
1406	1	1873	1
1407	}	1874	}
1408		1875
1409	sub find;	1876	sub find;
1410	sub find {	1877	sub find {
1411	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1412		1879
1413	$path = normalise $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1414		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1415	cf::lock_wait "map_find:$path";	1883	cf::lock_wait "map_find:$path";
1416		1884
1417	$cf::MAP{$path} || do {	1885	$cf::MAP{$path} || do {
1418	my $guard = cf::lock_acquire "map_find:$path";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1888
1419	my $map = new_from_path cf::map $path	1889	my $map = new_from_path cf::map $path
1420	or return;	1890	or return;
1421		1891
1422	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1423		1893
1424	$map->load_header	1894	$map->load_header
1425	or return;	1895	or return;
1426		1896
1427	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1428	# doing this can freeze the server in a sync job, obviously	1898	# doing this can freeze the server in a sync job, obviously
1429	#$cf::WAIT_FOR_TICK->wait;	1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1430	$map->reset;	1902	$map->reset;
1431	undef $guard;
1432	return find $path;	1903	return find $path;
1433	}	1904	}
1434		1905
1435	$cf::MAP{$path} = $map	1906	$cf::MAP{$path} = $map
1436	}	1907	}
…		…
1443	my ($self) = @_;	1914	my ($self) = @_;
1444		1915
1445	local $self->{deny_reset} = 1; # loading can take a long time	1916	local $self->{deny_reset} = 1; # loading can take a long time
1446		1917
1447	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1448	my $guard = cf::lock_acquire "map_load:$path";	1921	my $guard = cf::lock_acquire "map_data:$path";
1449		1922
		1923	return unless $self->valid;
1450	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1451		1925
1452	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1453		1927
1454	$self->alloc;	1928	$self->alloc;
1455		1929
1456	$self->pre_load;	1930	$self->pre_load;
		1931	cf::cede_to_tick;
1457		1932
1458	$self->_load_objects ($self->{load_path}, 1)	1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1459	or return;	1936	or return;
1460		1937
1461	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1462	if delete $self->{load_original};	1939	if delete $self->{load_original};
1463		1940
1464	if (my $uniq = $self->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1465	utf8::encode $uniq;	1942	utf8::encode $uniq;
1466	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1467	$self->clear_unique_items;	1945	$self->clear_unique_items;
1468	$self->_load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1469	}	1949	}
1470	}	1950	}
1471		1951
1472	Coro::cede;	1952	$f->resolve_delayed_derefs;
1473		1953
		1954	cf::cede_to_tick;
1474	# now do the right thing for maps	1955	# now do the right thing for maps
1475	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1476
1477	unless ($self->{deny_activate}) {
1478	$self->decay_objects;
1479	$self->fix_auto_apply;
1480	$self->update_buttons;
1481	Coro::cede;
1482	$self->set_darkness_map;
1483	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1484	unless $self->difficulty;	1958	unless $self->difficulty;
1485	Coro::cede;	1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1486	$self->activate;	1968	$self->activate;
		1969	}
		1970
		1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
		1974	$self->in_memory (cf::MAP_IN_MEMORY);
1487	}	1975	}
1488		1976
1489	$self->post_load;	1977	$self->post_load;
1490
1491	$self->in_memory (cf::MAP_IN_MEMORY);
1492	}	1978	}
1493		1979
1494	sub customise_for {	1980	sub customise_for {
1495	my ($self, $ob) = @_;	1981	my ($self, $ob) = @_;
1496		1982
1497	return find "~" . $ob->name . "/" . $self->{path}	1983	return find "~" . $ob->name . "/" . $self->{path}
1498	if $self->per_player;	1984	if $self->per_player;
1499		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
1500	$self	1989	$self
1501	}	1990	}
1502		1991
1503	# find and load all maps in the 3x3 area around a map	1992	# find and load all maps in the 3x3 area around a map
1504	sub load_diag {	1993	sub load_neighbours {
1505	my ($map) = @_;	1994	my ($map) = @_;
1506		1995
1507	my @diag; # diagonal neighbours	1996	my @neigh; # diagonal neighbours
1508		1997
1509	for (0 .. 3) {	1998	for (0 .. 3) {
1510	my $neigh = $map->tile_path ($_)	1999	my $neigh = $map->tile_path ($_)
1511	or next;	2000	or next;
1512	$neigh = find $neigh, $map	2001	$neigh = find $neigh, $map
1513	or next;	2002	or next;
1514	$neigh->load;	2003	$neigh->load;
1515		2004
		2005	push @neigh,
1516	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1517	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1518	}	2008	}
1519		2009
1520	for (@diag) {	2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
1521	my $neigh = find @$_	2012	my $neigh = find $path, $origin
1522	or next;	2013	or next;
1523	$neigh->load;	2014	$neigh->load;
1524	}	2015	}
1525	}	2016	}
1526		2017
…		…
1531	}	2022	}
1532		2023
1533	sub do_load_sync {	2024	sub do_load_sync {
1534	my ($map) = @_;	2025	my ($map) = @_;
1535		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1536	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
1537	}	2031	}
1538		2032
1539	our %MAP_PREFETCH;	2033	our %MAP_PREFETCH;
1540	our $MAP_PREFETCHER = undef;	2034	our $MAP_PREFETCHER = undef;
1541		2035
1542	sub find_async {	2036	sub find_async {
1543	my ($path, $origin) = @_;	2037	my ($path, $origin, $load) = @_;
1544		2038
1545	$path = normalise $path, $origin && $origin->{path};	2039	$path = normalise $path, $origin && $origin->{path};
1546		2040
1547	if (my $map = $cf::MAP{$path}) {	2041	if (my $map = $cf::MAP{$path}) {
1548	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1549	}	2043	}
1550		2044
1551	undef $MAP_PREFETCH{$path};	2045	$MAP_PREFETCH{$path} |= $load;
		2046
1552	$MAP_PREFETCHER ||= cf::async {	2047	$MAP_PREFETCHER ||= cf::async {
1553	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1554	for my $path (keys %MAP_PREFETCH) {	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1555	my $map = find $path	2050	if (my $map = find $k) {
1556	or next;
1557	$map->load;	2051	$map->load if $v;
		2052	}
1558		2053
1559	delete $MAP_PREFETCH{$path};	2054	delete $MAP_PREFETCH{$k};
1560	}	2055	}
1561	}	2056	}
1562	undef $MAP_PREFETCHER;	2057	undef $MAP_PREFETCHER;
1563	};	2058	};
1564	$MAP_PREFETCHER->prio (6);	2059	$MAP_PREFETCHER->prio (6);
…		…
1567	}	2062	}
1568		2063
1569	sub save {	2064	sub save {
1570	my ($self) = @_;	2065	my ($self) = @_;
1571		2066
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2068
1574	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1575		2070
1576	return unless $self->dirty;	2071	return unless $self->dirty;
1577		2072
…		…
1600	my ($self) = @_;	2095	my ($self) = @_;
1601		2096
1602	# save first because save cedes	2097	# save first because save cedes
1603	$self->save;	2098	$self->save;
1604		2099
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2101
1607	return if $self->players;	2102	return if $self->players;
1608	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1609	return if $self->{deny_save};	2104	return if $self->{deny_save};
1610		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1611	$self->clear;	2110	$self->clear;
1612	$self->in_memory (cf::MAP_SWAPPED);
1613	}	2111	}
1614		2112
1615	sub reset_at {	2113	sub reset_at {
1616	my ($self) = @_;	2114	my ($self) = @_;
1617		2115
1618	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1619	return 1e99 if $self->isa ("ext::map_per_player");#d#
1620	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1621		2118
1622	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1623	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1624		2121
…		…
1635	my ($self) = @_;	2132	my ($self) = @_;
1636		2133
1637	my $lock = cf::lock_acquire "map_data:$self->{path}";	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1638		2135
1639	return if $self->players;	2136	return if $self->players;
1640	return if $self->isa ("ext::map_per_player");#d#
1641		2137
1642	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
1643		2139
1644	$self->in_memory (cf::MAP_SWAPPED);	2140	$self->in_memory (cf::MAP_SWAPPED);
1645		2141
1646	# need to save uniques path	2142	# need to save uniques path
1647	unless ($self->{deny_save}) {	2143	unless ($self->{deny_save}) {
…		…
1651	if $uniq;	2147	if $uniq;
1652	}	2148	}
1653		2149
1654	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1655		2151
		2152	$self->deactivate;
		2153	$_->clear_links_to ($self) for values %cf::MAP;
1656	$self->clear;	2154	$self->clear;
1657
1658	$_->clear_links_to ($self) for values %cf::MAP;
1659		2155
1660	$self->unlink_save;	2156	$self->unlink_save;
1661	$self->destroy;	2157	$self->destroy;
1662	}	2158	}
1663		2159
1664	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1665		2161
1666	sub nuke {	2162	sub nuke {
1667	my ($self) = @_;	2163	my ($self) = @_;
1668		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
1669	delete $cf::MAP{$self->path};	2168	delete $cf::MAP{$self->path};
1670		2169
1671	$self->unlink_save;	2170	$self->unlink_save;
1672		2171
1673	bless $self, "cf::map";	2172	bless $self, "cf::map";
1674	delete $self->{deny_reset};	2173	delete $self->{deny_reset};
1675	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1676	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1677	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1678		2177
1679	$cf::MAP{$self->path} = $self;	2178	$cf::MAP{$self->path} = $self;
		2179	}
1680		2180
1681	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
		2182	}
		2183
		2184	=item $maps = cf::map::tmp_maps
		2185
		2186	Returns an arrayref with all map paths of currently instantiated and saved
		2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
		2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
		2201
		2202	=item $maps = cf::map::random_maps
		2203
		2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
		2206
		2207	=cut
		2208
		2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
1682	}	2218	}
1683		2219
1684	=item cf::map::unique_maps	2220	=item cf::map::unique_maps
1685		2221
1686	Returns an arrayref of paths of all shared maps that have	2222	Returns an arrayref of paths of all shared maps that have
1687	instantiated unique items. May block.	2223	instantiated unique items. May block.
1688		2224
1689	=cut	2225	=cut
1690		2226
1691	sub unique_maps() {	2227	sub unique_maps() {
1692	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2228	[
1693	or return;	2229	map {
1694
1695	my @paths;
1696
1697	for (@$files) {
1698	utf8::decode $_;	2230	utf8::decode $_;
1699	next if /\.pst$/;	2231	/\.map$/
1700	next unless /^$PATH_SEP/o;	2232	? normalise $_
1701		2233	: ()
1702	push @paths, cf::map::normalise $_;	2234	} @{ aio_readdir $UNIQUEDIR or [] }
1703	}	2235	]
1704
1705	\@paths
1706	}	2236	}
1707		2237
1708	package cf;	2238	package cf;
1709		2239
1710	=back	2240	=back
…		…
1728	map { $_, inv_recursive_ $_->inv } @_	2258	map { $_, inv_recursive_ $_->inv } @_
1729	}	2259	}
1730		2260
1731	sub inv_recursive {	2261	sub inv_recursive {
1732	inv_recursive_ inv $_[0]	2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
1733	}	2294	}
1734		2295
1735	package cf;	2296	package cf;
1736		2297
1737	=back	2298	=back
…		…
1756		2317
1757	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1758		2319
1759	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1760	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1761	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1762	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1763	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1764	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1765	}	2345	}
1766		2346
1767	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1768		2348
1769	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1816	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1817		2397
1818	return if UNIVERSAL::isa $self->map, "ext::map_link";	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1819		2399
1820	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1821	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1822		2402
1823	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1824	}	2404	}
1825		2405
1826	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1827	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1828		2410
1829	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1830		2412
1831	unless ($map) {	2413	unless ($map) {
1832	# restore original map position	2414	# restore original map position
…		…
1846	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1847	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1848	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1849		2431
1850	$map->load;	2432	$map->load;
1851	$map->load_diag;	2433	$map->load_neighbours;
1852		2434
1853	return unless $self->contr->active;	2435	return unless $self->contr->active;
1854	$self->activate_recursive;	2436	$self->activate_recursive;
1855		2437
1856	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1857	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1858	}	2440	}
1859		2441
1860	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1861	on_logout => sub {
1862	my ($pl) = @_;
1863		2443
1864	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1865	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1866	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1867	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1868	};	2448	be called at the end of this process.
1869	}
1870	},
1871	on_login => sub {
1872	my ($pl) = @_;
1873		2449
1874	# try to abort aborted map switching on player login :)
1875	# should happen only on crashes
1876	if ($pl->ob->{_link_pos}) {
1877	$pl->ob->enter_link;
1878	(async {
1879	$pl->ob->reply (undef,
1880	"There was an internal problem at your last logout, "
1881	. "the server will try to bring you to your intended destination in a second.",
1882	cf::NDI_RED);
1883	# we need this sleep as the login has a concurrent enter_exit running
1884	# and this sleep increases chances of the player not ending up in scorn
1885	Coro::Timer::sleep 1;
1886	$pl->ob->leave_link;
1887	})->prio (2);
1888	}
1889	},
1890	);
1891
1892	=item $player_object->goto ($path, $x, $y)
1893
1894	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1895		2453
1896	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1897	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1898		2459
1899	$self->enter_link;	2460	$self->enter_link;
1900		2461
1901	(async {	2462	(async {
		2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# todo: use ob_blocked to check all tiles of the destination "object"
		2469	# for suitability.
		2470
		2471	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2472	}
		2473	}
		2474
1902	my $map = eval {	2475	my $map = eval {
1903	my $map = cf::map::find $path;	2476	my $map = cf::map::find $path;
		2477
		2478	if ($map) {
1904	$map = $map->customise_for ($self) if $map;	2479	$map = $map->customise_for ($self);
		2480	$map = $check->($map) if $check && $map;
		2481	} else {
		2482	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2483	}
		2484
1905	$map	2485	$map
		2486	};
		2487
		2488	if ($@) {
		2489	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	LOG llevError | logBacktrace, Carp::longmess $@;
1906	} or	2491	}
1907	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1908		2492
		2493	if ($gen == $self->{_goto_generation}) {
		2494	delete $self->{_goto_generation};
1909	$self->leave_link ($map, $x, $y);	2495	$self->leave_link ($map, $x, $y);
		2496	}
		2497
		2498	$done->() if $done;
1910	})->prio (1);	2499	})->prio (1);
1911	}	2500	}
1912		2501
1913	=item $player_object->enter_exit ($exit_object)	2502	=item $player_object->enter_exit ($exit_object)
1914		2503
…		…
1953		2542
1954	$rmp->{random_seed} ||= $exit->random_seed;	2543	$rmp->{random_seed} ||= $exit->random_seed;
1955		2544
1956	my $data = cf::to_json $rmp;	2545	my $data = cf::to_json $rmp;
1957	my $md5 = Digest::MD5::md5_hex $data;	2546	my $md5 = Digest::MD5::md5_hex $data;
1958	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2547	my $meta = "$RANDOMDIR/$md5.meta";
1959		2548
1960	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2549	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1961	aio_write $fh, 0, (length $data), $data, 0;	2550	aio_write $fh, 0, (length $data), $data, 0;
1962	undef $fh;	2551	undef $fh;
1963	aio_rename "$meta~", $meta;	2552	aio_rename "$meta~", $meta;
…		…
1982	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2571	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1983	my $hp = $exit->stats->hp;	2572	my $hp = $exit->stats->hp;
1984	my $sp = $exit->stats->sp;	2573	my $sp = $exit->stats->sp;
1985		2574
1986	$self->enter_link;	2575	$self->enter_link;
		2576
		2577	# if exit is damned, update players death & WoR home-position
		2578	$self->contr->savebed ($slaying, $hp, $sp)
		2579	if $exit->flag (FLAG_DAMNED);
1987		2580
1988	(async {	2581	(async {
1989	$self->deactivate_recursive; # just to be sure	2582	$self->deactivate_recursive; # just to be sure
1990	unless (eval {	2583	unless (eval {
1991	$self->goto ($slaying, $hp, $sp);	2584	$self->goto ($slaying, $hp, $sp);
…		…
2019		2612
2020	utf8::encode $text;	2613	utf8::encode $text;
2021	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2614	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2022	}	2615	}
2023		2616
		2617	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2618
		2619	Send a drawinfo or msg packet to the client, formatting the msg for the
		2620	client if neccessary. C<$type> should be a string identifying the type of
		2621	the message, with C<log> being the default. If C<$color> is negative, suppress
		2622	the message unless the client supports the msg packet.
		2623
		2624	=cut
		2625
		2626	our %CHANNEL = (
		2627	"c/identify" => {
		2628	id => "identify",
		2629	title => "Identify",
		2630	reply => undef,
		2631	tooltip => "Items recently identified",
		2632	},
		2633	"c/examine" => {
		2634	id => "examine",
		2635	title => "Examine",
		2636	reply => undef,
		2637	tooltip => "Signs and other items you examined",
		2638	},
		2639	);
		2640
		2641	sub cf::client::send_msg {
		2642	my ($self, $channel, $msg, $color, @extra) = @_;
		2643
		2644	$msg = $self->pl->expand_cfpod ($msg);
		2645
		2646	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2647
		2648	# check predefined channels, for the benefit of C
		2649	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2650
		2651	if (ref $channel) {
		2652	# send meta info to client, if not yet sent
		2653	unless (exists $self->{channel}{$channel->{id}}) {
		2654	$self->{channel}{$channel->{id}} = $channel;
		2655	$self->ext_msg (channel_info => $channel)
		2656	if $self->can_msg;
		2657	}
		2658
		2659	$channel = $channel->{id};
		2660	}
		2661
		2662	return unless @extra || length $msg;
		2663
		2664	if ($self->can_msg) {
		2665	# default colour, mask it out
		2666	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2667	if $color & cf::NDI_DEF;
		2668
		2669	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2670	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2671	} else {
		2672	if ($color >= 0) {
		2673	# replace some tags by gcfclient-compatible ones
		2674	for ($msg) {
		2675	1 while
		2676	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2677	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2678	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2679	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2680	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2681	}
		2682
		2683	$color &= cf::NDI_COLOR_MASK;
		2684
		2685	utf8::encode $msg;
		2686
		2687	if (0 && $msg =~ /\[/) {
		2688	# COMMAND/INFO
		2689	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2690	} else {
		2691	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2692	$self->send_packet ("drawinfo $color $msg")
		2693	}
		2694	}
		2695	}
		2696	}
		2697
2024	=item $client->ext_event ($type, %msg)	2698	=item $client->ext_msg ($type, @msg)
2025		2699
2026	Sends an exti event to the client.	2700	Sends an ext event to the client.
2027		2701
2028	=cut	2702	=cut
2029		2703
2030	sub cf::client::ext_event($$%) {	2704	sub cf::client::ext_msg($$@) {
2031	my ($self, $type, %msg) = @_;	2705	my ($self, $type, @msg) = @_;
2032		2706
		2707	if ($self->extcmd == 2) {
		2708	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2709	} elsif ($self->extcmd == 1) { # TODO: remove
2033	$msg{msgtype} = "event_$type";	2710	push @msg, msgtype => "event_$type";
2034	$self->send_packet ("ext " . cf::to_json \%msg);	2711	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2712	}
		2713	}
		2714
		2715	=item $client->ext_reply ($msgid, @msg)
		2716
		2717	Sends an ext reply to the client.
		2718
		2719	=cut
		2720
		2721	sub cf::client::ext_reply($$@) {
		2722	my ($self, $id, @msg) = @_;
		2723
		2724	if ($self->extcmd == 2) {
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2726	} elsif ($self->extcmd == 1) {
		2727	#TODO: version 1, remove
		2728	unshift @msg, msgtype => "reply", msgid => $id;
		2729	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2730	}
2035	}	2731	}
2036		2732
2037	=item $success = $client->query ($flags, "text", \&cb)	2733	=item $success = $client->query ($flags, "text", \&cb)
2038		2734
2039	Queues a query to the client, calling the given callback with	2735	Queues a query to the client, calling the given callback with
2040	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2736	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2041	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2737	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2042		2738
2043	Queries can fail, so check the return code. Or don't, as queries will become	2739	Queries can fail, so check the return code. Or don't, as queries will
2044	reliable at some point in the future.	2740	become reliable at some point in the future.
2045		2741
2046	=cut	2742	=cut
2047		2743
2048	sub cf::client::query {	2744	sub cf::client::query {
2049	my ($self, $flags, $text, $cb) = @_;	2745	my ($self, $flags, $text, $cb) = @_;
…		…
2057	utf8::encode $text;	2753	utf8::encode $text;
2058	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2754	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2059		2755
2060	$self->send_packet ($self->{query_queue}[0][0])	2756	$self->send_packet ($self->{query_queue}[0][0])
2061	if @{ $self->{query_queue} } == 1;	2757	if @{ $self->{query_queue} } == 1;
		2758
		2759	1
2062	}	2760	}
2063		2761
2064	cf::client->attach (	2762	cf::client->attach (
		2763	on_connect => sub {
		2764	my ($ns) = @_;
		2765
		2766	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2767	},
2065	on_reply => sub {	2768	on_reply => sub {
2066	my ($ns, $msg) = @_;	2769	my ($ns, $msg) = @_;
2067		2770
2068	# this weird shuffling is so that direct followup queries	2771	# this weird shuffling is so that direct followup queries
2069	# get handled first	2772	# get handled first
…		…
2081	} else {	2784	} else {
2082	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2785	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2083	}	2786	}
2084	}	2787	}
2085	},	2788	},
		2789	on_exticmd => sub {
		2790	my ($ns, $buf) = @_;
		2791
		2792	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2793
		2794	if (ref $msg) {
		2795	my ($type, $reply, @payload) =
		2796	"ARRAY" eq ref $msg
		2797	? @$msg
		2798	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2799
		2800	my @reply;
		2801
		2802	if (my $cb = $EXTICMD{$type}) {
		2803	@reply = $cb->($ns, @payload);
		2804	}
		2805
		2806	$ns->ext_reply ($reply, @reply)
		2807	if $reply;
		2808
		2809	} else {
		2810	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2811	}
		2812
		2813	cf::override;
		2814	},
2086	);	2815	);
2087		2816
2088	=item $client->async (\&cb)	2817	=item $client->async (\&cb)
2089		2818
2090	Create a new coroutine, running the specified callback. The coroutine will	2819	Create a new coroutine, running the specified callback. The coroutine will
…		…
2131	our $safe = new Safe "safe";	2860	our $safe = new Safe "safe";
2132	our $safe_hole = new Safe::Hole;	2861	our $safe_hole = new Safe::Hole;
2133		2862
2134	$SIG{FPE} = 'IGNORE';	2863	$SIG{FPE} = 'IGNORE';
2135		2864
2136	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2865	$safe->permit_only (Opcode::opset qw(
		2866	:base_core :base_mem :base_orig :base_math
		2867	grepstart grepwhile mapstart mapwhile
		2868	sort time
		2869	));
2137		2870
2138	# here we export the classes and methods available to script code	2871	# here we export the classes and methods available to script code
2139		2872
2140	=pod	2873	=pod
2141		2874
2142	The following functions and methods are available within a safe environment:	2875	The following functions and methods are available within a safe environment:
2143		2876
2144	cf::object contr pay_amount pay_player map	2877	cf::object
		2878	contr pay_amount pay_player map x y force_find force_add
		2879	insert remove name archname title slaying race decrease_ob_nr
		2880
2145	cf::object::player player	2881	cf::object::player
2146	cf::player peaceful	2882	player
2147	cf::map trigger	2883
		2884	cf::player
		2885	peaceful
		2886
		2887	cf::map
		2888	trigger
2148		2889
2149	=cut	2890	=cut
2150		2891
2151	for (	2892	for (
2152	["cf::object" => qw(contr pay_amount pay_player map)],	2893	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2894	insert remove inv name archname title slaying race
		2895	decrease_ob_nr)],
2153	["cf::object::player" => qw(player)],	2896	["cf::object::player" => qw(player)],
2154	["cf::player" => qw(peaceful)],	2897	["cf::player" => qw(peaceful)],
2155	["cf::map" => qw(trigger)],	2898	["cf::map" => qw(trigger)],
2156	) {	2899	) {
2157	no strict 'refs';	2900	no strict 'refs';
…		…
2228	=back	2971	=back
2229		2972
2230	=cut	2973	=cut
2231		2974
2232	#############################################################################	2975	#############################################################################
2233
2234	=head2 EXTENSION DATABASE SUPPORT
2235
2236	Crossfire maintains a very simple database for extension use. It can
2237	currently store anything that can be serialised using Storable, which
2238	excludes objects.
2239
2240	The parameter C<$family> should best start with the name of the extension
2241	using it, it should be unique.
2242
2243	=over 4
2244
2245	=item $value = cf::db_get $family => $key
2246
2247	Returns a single value from the database.
2248
2249	=item cf::db_put $family => $key => $value
2250
2251	Stores the given C<$value> in the family.
2252
2253	=cut
2254
2255	our $DB;
2256
2257	sub db_init {
2258	unless ($DB) {
2259	$DB = BDB::db_create $DB_ENV;
2260
2261	cf::sync_job {
2262	eval {
2263	$DB->set_flags (BDB::CHKSUM);
2264
2265	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2266	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2267	cf::cleanup "db_open(db): $!" if $!;
2268	};
2269	cf::cleanup "db_open(db): $@" if $@;
2270	};
2271
2272	my $path = cf::localdir . "/database.pst";
2273	if (stat $path) {
2274	cf::sync_job {
2275	my $pst = Storable::retrieve $path;
2276
2277	cf::db_put (board => data => $pst->{board});
2278	cf::db_put (guildrules => data => $pst->{guildrules});
2279	cf::db_put (rent => balance => $pst->{rent}{balance});
2280	BDB::db_env_txn_checkpoint $DB_ENV;
2281
2282	unlink $path;
2283	};
2284	}
2285	}
2286	}
2287
2288	sub db_get($$) {
2289	my $key = "$_[0]/$_[1]";
2290
2291	cf::sync_job {
2292	BDB::db_get $DB, undef, $key, my $data;
2293
2294	$! ? ()
2295	: Compress::LZF::sthaw $data
2296	}
2297	}
2298
2299	sub db_put($$$) {
2300	BDB::dbreq_pri 4;
2301	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2302	}
2303
2304	#############################################################################
2305	# the server's init and main functions	2976	# the server's init and main functions
2306		2977
2307	sub load_facedata {	2978	sub load_facedata($) {
2308	my $path = sprintf "%s/facedata", cf::datadir;	2979	my ($path) = @_;
		2980
		2981	# HACK to clear player env face cache, we need some signal framework
		2982	# for this (global event?)
		2983	%ext::player_env::MUSIC_FACE_CACHE = ();
		2984
		2985	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2309		2986
2310	warn "loading facedata from $path\n";	2987	warn "loading facedata from $path\n";
2311		2988
2312	my $faces;	2989	my $facedata;
2313	0 < aio_load $path, $faces	2990	0 < aio_load $path, $facedata
2314	or die "$path: $!";	2991	or die "$path: $!";
2315		2992
2316	Coro::cede;
2317	$faces = Storable::thaw $faces;	2993	$facedata = Coro::Storable::thaw $facedata;
2318	Coro::cede;
2319		2994
2320	my $meta = delete $faces->{""};
2321	$meta->{version} == 1	2995	$facedata->{version} == 2
2322	or cf::cleanup "$path: version mismatch, cannot proceed.";	2996	or cf::cleanup "$path: version mismatch, cannot proceed.";
2323		2997
		2998	# patch in the exptable
		2999	$facedata->{resource}{"res/exp_table"} = {
		3000	type => FT_RSRC,
		3001	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3002	};
		3003	cf::cede_to_tick;
		3004
		3005	{
		3006	my $faces = $facedata->{faceinfo};
		3007
2324	while (my ($face, $info) = each %$faces) {	3008	while (my ($face, $info) = each %$faces) {
2325	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3009	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2326	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3010	cf::face::set_visibility $idx, $info->{visibility};
		3011	cf::face::set_magicmap $idx, $info->{magicmap};
2327	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3012	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2328	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3013	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2329	Coro::cede;
2330	}
2331		3014
		3015	cf::cede_to_tick;
		3016	}
		3017
2332	while (my ($face, $info) = each %$faces) {	3018	while (my ($face, $info) = each %$faces) {
2333	next unless $info->{smooth};	3019	next unless $info->{smooth};
2334	my $idx = cf::face::find $face	3020	my $idx = cf::face::find $face
2335	or next;	3021	or next;
2336	if (my $smooth = cf::face::find $info->{smooth}) {	3022	if (my $smooth = cf::face::find $info->{smooth}) {
		3023	cf::face::set_smooth $idx, $smooth;
2337	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3024	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2338	} else {	3025	} else {
2339	warn "smooth face '$info->{smooth}' not found for face '$face'";	3026	warn "smooth face '$info->{smooth}' not found for face '$face'";
2340	}	3027	}
2341	Coro::cede;	3028
		3029	cf::cede_to_tick;
		3030	}
		3031	}
		3032
		3033	{
		3034	my $anims = $facedata->{animinfo};
		3035
		3036	while (my ($anim, $info) = each %$anims) {
		3037	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3038	cf::cede_to_tick;
		3039	}
		3040
		3041	cf::anim::invalidate_all; # d'oh
		3042	}
		3043
		3044	{
		3045	# TODO: for gcfclient pleasure, we should give resources
		3046	# that gcfclient doesn't grok a >10000 face index.
		3047	my $res = $facedata->{resource};
		3048
		3049	my $soundconf = delete $res->{"res/sound.conf"};
		3050
		3051	while (my ($name, $info) = each %$res) {
		3052	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3053	my $data;
		3054
		3055	if ($info->{type} & 1) {
		3056	# prepend meta info
		3057
		3058	my $meta = $enc->encode ({
		3059	name => $name,
		3060	%{ $info->{meta} || {} },
		3061	});
		3062
		3063	$data = pack "(w/a*)*", $meta, $info->{data};
		3064	} else {
		3065	$data = $info->{data};
		3066	}
		3067
		3068	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3069	cf::face::set_type $idx, $info->{type};
		3070
		3071	cf::cede_to_tick;
		3072	}
		3073
		3074	if ($soundconf) {
		3075	$soundconf = $enc->decode (delete $soundconf->{data});
		3076
		3077	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3078	my $sound = $soundconf->{compat}[$_]
		3079	or next;
		3080
		3081	my $face = cf::face::find "sound/$sound->[1]";
		3082	cf::sound::set $sound->[0] => $face;
		3083	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3084	}
		3085
		3086	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3087	my $face = cf::face::find "sound/$v";
		3088	cf::sound::set $k => $face;
		3089	}
		3090	}
2342	}	3091	}
2343		3092
2344	1	3093	1
2345	}	3094	}
2346		3095
		3096	register_exticmd fx_want => sub {
		3097	my ($ns, $want) = @_;
		3098
		3099	while (my ($k, $v) = each %$want) {
		3100	$ns->fx_want ($k, $v);
		3101	}
		3102	};
		3103
		3104	sub reload_regions {
		3105	# HACK to clear player env face cache, we need some signal framework
		3106	# for this (global event?)
		3107	%ext::player_env::MUSIC_FACE_CACHE = ();
		3108
		3109	load_resource_file "$MAPDIR/regions"
		3110	or die "unable to load regions file\n";
		3111
		3112	for (cf::region::list) {
		3113	$_->{match} = qr/$_->{match}/
		3114	if exists $_->{match};
		3115	}
		3116	}
		3117
		3118	sub reload_facedata {
		3119	load_facedata "$DATADIR/facedata"
		3120	or die "unable to load facedata\n";
		3121	}
		3122
		3123	sub reload_archetypes {
		3124	load_resource_file "$DATADIR/archetypes"
		3125	or die "unable to load archetypes\n";
		3126	#d# NEED to laod twice to resolve forward references
		3127	# this really needs to be done in an extra post-pass
		3128	# (which needs to be synchronous, so solve it differently)
		3129	load_resource_file "$DATADIR/archetypes"
		3130	or die "unable to load archetypes\n";
		3131	}
		3132
		3133	sub reload_treasures {
		3134	load_resource_file "$DATADIR/treasures"
		3135	or die "unable to load treasurelists\n";
		3136	}
		3137
2347	sub reload_resources {	3138	sub reload_resources {
2348	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3139	warn "reloading resource files...\n";
2349	or die "unable to load regions file\n";#d#	3140
		3141	reload_regions;
2350	load_facedata	3142	reload_facedata;
2351	or die "unable to load facedata\n";#d#	3143	#reload_archetypes;#d#
		3144	reload_archetypes;
		3145	reload_treasures;
		3146
		3147	warn "finished reloading resource files\n";
2352	}	3148	}
2353		3149
2354	sub init {	3150	sub init {
2355	reload_resources;	3151	reload_resources;
2356	}	3152	}
2357		3153
2358	sub cfg_load {	3154	sub reload_config {
2359	open my $fh, "<:utf8", cf::confdir . "/config"	3155	open my $fh, "<:utf8", "$CONFDIR/config"
2360	or return;	3156	or return;
2361		3157
2362	local $/;	3158	local $/;
2363	*CFG = YAML::Syck::Load <$fh>;	3159	*CFG = YAML::Syck::Load <$fh>;
2364		3160
…		…
2383	(async {	3179	(async {
2384	Event::one_event;	3180	Event::one_event;
2385	})->prio (Coro::PRIO_MAX);	3181	})->prio (Coro::PRIO_MAX);
2386	};	3182	};
2387		3183
2388	cfg_load;	3184	reload_config;
2389	db_init;	3185	db_init;
2390	load_extensions;	3186	load_extensions;
2391		3187
2392	$TICK_WATCHER->start;	3188	$TICK_WATCHER->start;
2393	Event::loop;	3189	Event::loop;
…		…
2409	},	3205	},
2410	);	3206	);
2411	}	3207	}
2412	}	3208	}
2413		3209
		3210	sub write_runtime {
		3211	my $runtime = "$LOCALDIR/runtime";
		3212
		3213	# first touch the runtime file to show we are still running:
		3214	# the fsync below can take a very very long time.
		3215
		3216	IO::AIO::aio_utime $runtime, undef, undef;
		3217
		3218	my $guard = cf::lock_acquire "write_runtime";
		3219
		3220	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3221	or return;
		3222
		3223	my $value = $cf::RUNTIME + 90 + 10;
		3224	# 10 is the runtime save interval, for a monotonic clock
		3225	# 60 allows for the watchdog to kill the server.
		3226
		3227	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3228	and return;
		3229
		3230	# always fsync - this file is important
		3231	aio_fsync $fh
		3232	and return;
		3233
		3234	# touch it again to show we are up-to-date
		3235	aio_utime $fh, undef, undef;
		3236
		3237	close $fh
		3238	or return;
		3239
		3240	aio_rename "$runtime~", $runtime
		3241	and return;
		3242
		3243	warn "runtime file written.\n";
		3244
		3245	1
		3246	}
		3247
2414	sub emergency_save() {	3248	sub emergency_save() {
2415	my $freeze_guard = cf::freeze_mainloop;	3249	my $freeze_guard = cf::freeze_mainloop;
2416		3250
2417	warn "enter emergency perl save\n";	3251	warn "enter emergency perl save\n";
2418		3252
…		…
2449		3283
2450	warn Carp::longmess "post_cleanup backtrace"	3284	warn Carp::longmess "post_cleanup backtrace"
2451	if $make_core;	3285	if $make_core;
2452	}	3286	}
2453		3287
2454	sub reload() {	3288	sub do_reload_perl() {
2455	# can/must only be called in main	3289	# can/must only be called in main
2456	if ($Coro::current != $Coro::main) {	3290	if ($Coro::current != $Coro::main) {
2457	warn "can only reload from main coroutine";	3291	warn "can only reload from main coroutine";
2458	return;	3292	return;
2459	}	3293	}
…		…
2493	%EXT_CORO = ();	3327	%EXT_CORO = ();
2494		3328
2495	warn "removing commands";	3329	warn "removing commands";
2496	%COMMAND = ();	3330	%COMMAND = ();
2497		3331
2498	warn "removing ext commands";	3332	warn "removing ext/exti commands";
2499	%EXTCMD = ();	3333	%EXTCMD = ();
		3334	%EXTICMD = ();
2500		3335
2501	warn "unloading/nuking all extensions";	3336	warn "unloading/nuking all extensions";
2502	for my $pkg (@EXTS) {	3337	for my $pkg (@EXTS) {
2503	warn "... unloading $pkg";	3338	warn "... unloading $pkg";
2504		3339
…		…
2534	Symbol::delete_package "safe::$_"	3369	Symbol::delete_package "safe::$_"
2535	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3370	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2536		3371
2537	warn "unloading cf.pm \"a bit\"";	3372	warn "unloading cf.pm \"a bit\"";
2538	delete $INC{"cf.pm"};	3373	delete $INC{"cf.pm"};
		3374	delete $INC{"cf/pod.pm"};
2539		3375
2540	# don't, removes xs symbols, too,	3376	# don't, removes xs symbols, too,
2541	# and global variables created in xs	3377	# and global variables created in xs
2542	#Symbol::delete_package __PACKAGE__;	3378	#Symbol::delete_package __PACKAGE__;
2543		3379
…		…
2546	warn "reloading cf.pm";	3382	warn "reloading cf.pm";
2547	require cf;	3383	require cf;
2548	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3384	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2549		3385
2550	warn "loading config and database again";	3386	warn "loading config and database again";
2551	cf::cfg_load;	3387	cf::reload_config;
2552		3388
2553	warn "loading extensions";	3389	warn "loading extensions";
2554	cf::load_extensions;	3390	cf::load_extensions;
2555		3391
2556	warn "reattaching attachments to objects/players";	3392	warn "reattaching attachments to objects/players";
…		…
2558	warn "reattaching attachments to maps";	3394	warn "reattaching attachments to maps";
2559	reattach $_ for values %MAP;	3395	reattach $_ for values %MAP;
2560	warn "reattaching attachments to players";	3396	warn "reattaching attachments to players";
2561	reattach $_ for values %PLAYER;	3397	reattach $_ for values %PLAYER;
2562		3398
2563	warn "loading reloadable resources";
2564	reload_resources;
2565
2566	warn "leaving sync_job";	3399	warn "leaving sync_job";
2567		3400
2568	1	3401	1
2569	} or do {	3402	} or do {
2570	warn $@;	3403	warn $@;
…		…
2575	warn "reloaded";	3408	warn "reloaded";
2576	};	3409	};
2577		3410
2578	our $RELOAD_WATCHER; # used only during reload	3411	our $RELOAD_WATCHER; # used only during reload
2579		3412
		3413	sub reload_perl() {
		3414	# doing reload synchronously and two reloads happen back-to-back,
		3415	# coro crashes during coro_state_free->destroy here.
		3416
		3417	$RELOAD_WATCHER ||= Event->timer (
		3418	reentrant => 0,
		3419	after => 0,
		3420	data => WF_AUTOCANCEL,
		3421	cb => sub {
		3422	do_reload_perl;
		3423	undef $RELOAD_WATCHER;
		3424	},
		3425	);
		3426	}
		3427
2580	register_command "reload" => sub {	3428	register_command "reload" => sub {
2581	my ($who, $arg) = @_;	3429	my ($who, $arg) = @_;
2582		3430
2583	if ($who->flag (FLAG_WIZ)) {	3431	if ($who->flag (FLAG_WIZ)) {
2584	$who->message ("reloading server.");	3432	$who->message ("reloading server.");
2585		3433	async { reload_perl };
2586	# doing reload synchronously and two reloads happen back-to-back,
2587	# coro crashes during coro_state_free->destroy here.
2588
2589	$RELOAD_WATCHER ||= Event->timer (
2590	reentrant => 0,
2591	after => 0,
2592	data => WF_AUTOCANCEL,
2593	cb => sub {
2594	reload;
2595	undef $RELOAD_WATCHER;
2596	},
2597	);
2598	}	3434	}
2599	};	3435	};
2600		3436
2601	unshift @INC, $LIBDIR;	3437	unshift @INC, $LIBDIR;
2602		3438
2603	my $bug_warning = 0;	3439	my $bug_warning = 0;
		3440
		3441	our @WAIT_FOR_TICK;
		3442	our @WAIT_FOR_TICK_BEGIN;
		3443
		3444	sub wait_for_tick {
		3445	return unless $TICK_WATCHER->is_active;
		3446	return if $Coro::current == $Coro::main;
		3447
		3448	my $signal = new Coro::Signal;
		3449	push @WAIT_FOR_TICK, $signal;
		3450	$signal->wait;
		3451	}
		3452
		3453	sub wait_for_tick_begin {
		3454	return unless $TICK_WATCHER->is_active;
		3455	return if $Coro::current == $Coro::main;
		3456
		3457	my $signal = new Coro::Signal;
		3458	push @WAIT_FOR_TICK_BEGIN, $signal;
		3459	$signal->wait;
		3460	}
		3461
		3462	our $stat_fh;
		3463	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
2604		3464
2605	$TICK_WATCHER = Event->timer (	3465	$TICK_WATCHER = Event->timer (
2606	reentrant => 0,	3466	reentrant => 0,
2607	parked => 1,	3467	parked => 1,
2608	prio => 0,	3468	prio => 0,
…		…
2613	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3473	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2614	unless ++$bug_warning > 10;	3474	unless ++$bug_warning > 10;
2615	return;	3475	return;
2616	}	3476	}
2617		3477
		3478	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3479
2618	$NOW = Event::time;	3480	$NOW = $tick_start = Event::time;
2619		3481
2620	cf::server_tick; # one server iteration	3482	cf::server_tick; # one server iteration
		3483
2621	$RUNTIME += $TICK;	3484	$RUNTIME += $TICK;
2622	$NEXT_TICK += $TICK;	3485	$NEXT_TICK += $TICK;
2623		3486
2624	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3487	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2625	$NEXT_RUNTIME_WRITE = $NOW + 10;	3488	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2627	write_runtime	3490	write_runtime
2628	or warn "ERROR: unable to write runtime file: $!";	3491	or warn "ERROR: unable to write runtime file: $!";
2629	};	3492	};
2630	}	3493	}
2631		3494
2632	$WAIT_FOR_TICK->broadcast;
2633	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2634
2635	# my $AFTER = Event::time;	3495	# my $AFTER = Event::time;
2636	# warn $AFTER - $NOW;#d#	3496	# warn $AFTER - $NOW;#d#
2637		3497
		3498	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3499	$sig->send;
		3500	}
		3501	while (my $sig = shift @WAIT_FOR_TICK) {
		3502	$sig->send;
		3503	}
		3504
		3505	$NOW = Event::time;
		3506
2638	# if we are delayed by four ticks or more, skip them all	3507	# if we are delayed by four ticks or more, skip them all
2639	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3508	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2640		3509
2641	$TICK_WATCHER->at ($NEXT_TICK);	3510	$TICK_WATCHER->at ($NEXT_TICK);
2642	$TICK_WATCHER->start;	3511	$TICK_WATCHER->start;
		3512
		3513	$LOAD = ($NOW - $tick_start) / $TICK;
		3514	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3515
		3516	_post_tick;
		3517
		3518	# gather some statistics#d#
		3519	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3520	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2643	},	3521	},
2644	);	3522	);
2645		3523
2646	{	3524	{
		3525	BDB::min_parallel 8;
2647	BDB::max_poll_time $TICK * 0.1;	3526	BDB::max_poll_time $TICK * 0.1;
2648	$BDB_POLL_WATCHER = Event->io (	3527	$BDB_POLL_WATCHER = Event->io (
2649	reentrant => 0,	3528	reentrant => 0,
2650	fd => BDB::poll_fileno,	3529	fd => BDB::poll_fileno,
2651	poll => 'r',	3530	poll => 'r',
2652	prio => 0,	3531	prio => 0,
2653	data => WF_AUTOCANCEL,	3532	data => WF_AUTOCANCEL,
2654	cb => \&BDB::poll_cb,	3533	cb => \&BDB::poll_cb,
2655	);	3534	);
2656	BDB::min_parallel 8;
2657		3535
2658	BDB::set_sync_prepare {	3536	BDB::set_sync_prepare {
2659	my $status;	3537	my $status;
2660	my $current = $Coro::current;	3538	my $current = $Coro::current;
2661	(	3539	(
…		…
2675		3553
2676	cf::sync_job {	3554	cf::sync_job {
2677	eval {	3555	eval {
2678	BDB::db_env_open	3556	BDB::db_env_open
2679	$DB_ENV,	3557	$DB_ENV,
2680	$BDB_ENV_DIR,	3558	$BDBDIR,
2681	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3559	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2682	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3560	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2683	0666;	3561	0666;
2684		3562
2685	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3563	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2686		3564
2687	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3565	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3566	| BDB::LOG_AUTOREMOVE, 1);
2688	$DB_ENV->set_lk_detect;	3567	$DB_ENV->set_lk_detect;
2689	};	3568	};
2690		3569
2691	cf::cleanup "db_env_open(db): $@" if $@;	3570	cf::cleanup "db_env_open(db): $@" if $@;
2692	};	3571	};
2693	}	3572	}
		3573
		3574	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3575	after => 11,
		3576	interval => 60,
		3577	hard => 1,
		3578	prio => 0,
		3579	data => WF_AUTOCANCEL,
		3580	cb => sub {
		3581	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3582	},
		3583	);
		3584	$BDB_TRICKLE_WATCHER = Event->timer (
		3585	after => 5,
		3586	interval => 10,
		3587	hard => 1,
		3588	prio => 0,
		3589	data => WF_AUTOCANCEL,
		3590	cb => sub {
		3591	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3592	},
		3593	);
2694	}	3594	}
2695		3595
2696	{	3596	{
2697	IO::AIO::min_parallel 8;	3597	IO::AIO::min_parallel 8;
2698		3598
…		…
2706	prio => 6,	3606	prio => 6,
2707	cb => \&IO::AIO::poll_cb,	3607	cb => \&IO::AIO::poll_cb,
2708	);	3608	);
2709	}	3609	}
2710		3610
		3611	my $_log_backtrace;
		3612
		3613	sub _log_backtrace {
		3614	my ($msg, @addr) = @_;
		3615
		3616	$msg =~ s/\n//;
		3617
		3618	# limit the # of concurrent backtraces
		3619	if ($_log_backtrace < 2) {
		3620	++$_log_backtrace;
		3621	async {
		3622	my @bt = fork_call {
		3623	@addr = map { sprintf "%x", $_ } @addr;
		3624	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3625	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3626	or die "addr2line: $!";
		3627
		3628	my @funcs;
		3629	my @res = <$fh>;
		3630	chomp for @res;
		3631	while (@res) {
		3632	my ($func, $line) = splice @res, 0, 2, ();
		3633	push @funcs, "[$func] $line";
		3634	}
		3635
		3636	@funcs
		3637	};
		3638
		3639	LOG llevInfo, "[ABT] $msg\n";
		3640	LOG llevInfo, "[ABT] $_\n" for @bt;
		3641	--$_log_backtrace;
		3642	};
		3643	} else {
		3644	LOG llevInfo, "[ABT] $msg\n";
		3645	LOG llevInfo, "[ABT] [suppressed]\n";
		3646	}
		3647	}
		3648
		3649	# load additional modules
		3650	use cf::pod;
		3651
2711	END { cf::emergency_save }	3652	END { cf::emergency_save }
2712		3653
2713	1	3654	1
2714		3655

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