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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.237 by root, Fri Apr 13 05:08:51 2007 UTC vs.
Revision 1.365 by root, Tue Sep 11 13:27:56 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;
21	use Coro::Storable;	23	use Coro::Storable;
		24	use Coro::Util ();
22		25
		26	use JSON::XS ();
23	use BDB ();	27	use BDB ();
24	use Data::Dumper;	28	use Data::Dumper;
25	use Digest::MD5;	29	use Digest::MD5;
26	use Fcntl;	30	use Fcntl;
27	use YAML::Syck ();	31	use YAML::Syck ();
28	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
29	use Time::HiRes;	33	use Time::HiRes;
30	use Compress::LZF;	34	use Compress::LZF;
		35	use Digest::MD5 ();
31		36
32	# configure various modules to our taste	37	# configure various modules to our taste
33	#	38	#
34	$Storable::canonical = 1; # reduce rsync transfers	39	$Storable::canonical = 1; # reduce rsync transfers
35	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
…		…
47	our %COMMAND = ();	52	our %COMMAND = ();
48	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
49		54
50	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
51	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
52	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
54		60
55	our $RELOAD; # number of reloads so far	61	our $RELOAD; # number of reloads so far
56	our @EVENT;	62	our @EVENT;
57	our $LIBDIR = datadir . "/ext";
58		63
59	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(!)
60	our $TICK_WATCHER;	77	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;	78	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	80	our $NEXT_TICK;
64	our $NOW;	81	our $NOW;
65	our $USE_FSYNC = 1; # use fsync to write maps - default off	82	our $USE_FSYNC = 1; # use fsync to write maps - default off
66		83
67	our $BDB_POLL_WATCHER;	84	our $BDB_POLL_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
68	our $DB_ENV;	87	our $DB_ENV;
69		88
70	our %CFG;	89	our %CFG;
71		90
72	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
73	our $RUNTIME;	92	our $RUNTIME;
74		93
75	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
76	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	96	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80
81	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
82	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
83		97
84	# 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 ∕
85	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
86		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 $tick_start; # for load detecting purposes
		104
87	binmode STDOUT;	105	binmode STDOUT;
88	binmode STDERR;	106	binmode STDERR;
89		107
90	# read virtual server time, if available	108	# read virtual server time, if available
91	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
92	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
93	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
94	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
95	}	113	}
96		114
97	mkdir cf::localdir;	115	mkdir $_
98	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir cf::localdir . "/" . cf::tmpdir;
100	mkdir cf::localdir . "/" . cf::uniquedir;
101	mkdir $RANDOM_MAPS;
102	mkdir $BDB_ENV_DIR;
103		117
104	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
105		119
106	sub cf::map::normalise;	120	sub cf::map::normalise;
107		121
…		…
118	=item $cf::RUNTIME	132	=item $cf::RUNTIME
119		133
120	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
121	every server tick.	135	every server tick.
122		136
123	=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
124		140
125	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
126	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.
127		145
128	=item $cf::NOW	146	=item $cf::NOW
129		147
130	The time of the last (current) server tick.	148	The time of the last (current) server tick.
131		149
132	=item $cf::TICK	150	=item $cf::TICK
133		151
134	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.
135		163
136	=item %cf::CFG	164	=item %cf::CFG
137		165
138	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
139	from wherever your confdir points to.	167	from wherever your confdir points to.
140		168
141	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
142		170
143	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
144	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
145	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.
146	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.
147		180
148	=back	181	=back
149		182
150	=cut	183	=cut
151		184
152	BEGIN {	185	BEGIN {
153	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
154	my $msg = join "", @_;	187	my $msg = join "", @_;
155	utf8::encode $msg;
156		188
157	$msg .= "\n"	189	$msg .= "\n"
158	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
159		193
160	LOG llevError, $msg;	194	LOG llevError, $msg;
161	};	195	};
162	}	196	}
163		197
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@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';
169	@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)
170		205
171	# 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
172	# within the Safe compartment.	207	# within the Safe compartment.
173	for my $pkg (qw(	208	for my $pkg (qw(
174	cf::global cf::attachable	209	cf::global cf::attachable
…		…
182	}	217	}
183		218
184	$Event::DIED = sub {	219	$Event::DIED = sub {
185	warn "error in event callback: @_";	220	warn "error in event callback: @_";
186	};	221	};
		222
		223	#############################################################################
187		224
188	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
189		226
190	=over 4	227	=over 4
191		228
…		…
210	$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;
211	$d	248	$d
212	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
213	}	250	}
214		251
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
218		253
219	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
220		255
221	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
222		257
223	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]) }
224		266
225	=item cf::lock_wait $string	267	=item cf::lock_wait $string
226		268
227	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
228		270
…		…
231	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
232	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,
233	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
234	returned.	276	returned.
235		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
236	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
237	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
238		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
239	=cut	288	=cut
240		289
241	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
242		292
243	sub lock_wait($) {	293	sub lock_wait($) {
244	my ($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#
245		300
246	# wait for lock, if any	301	# wait for lock, if any
247	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;	304	Coro::schedule;
…		…
255		310
256	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
257	lock_wait $key;	312	lock_wait $key;
258		313
259	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
260		316
261	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
262	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
264	}	321	}
		322	}
		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
265	}	328	}
266		329
267	sub freeze_mainloop {	330	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
269		332
…		…
272	};	335	};
273	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
274	$guard	337	$guard
275	}	338	}
276		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
277	=item cf::async { BLOCK }	396	=item cf::async { BLOCK }
278		397
279	Currently the same as Coro::async_pool, meaning you cannot use	398	Currently the same as Coro::async_pool, meaning you cannot use
280	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	399	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
281	thing you are allowed to do is call C<prio> on it.	400	thing you are allowed to do is call C<prio> on it.
…		…
284		403
285	BEGIN { *async = \&Coro::async_pool }	404	BEGIN { *async = \&Coro::async_pool }
286		405
287	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
288		407
289	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)
290	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
291	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.
292		412
293	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
294	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
295	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
296	fast or be very important.	416	fast or be very important.
…		…
299		419
300	sub sync_job(&) {	420	sub sync_job(&) {
301	my ($job) = @_;	421	my ($job) = @_;
302		422
303	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
304	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
306		428
307	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	430	# (but this is cancel-safe)
…		…
319		441
320	while ($busy) {	442	while ($busy) {
321	Coro::cede or Event::one_event;	443	Coro::cede or Event::one_event;
322	}	444	}
323		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
324	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
325	} else {	454	} else {
326	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
327		456
328	$job->()	457	$job->()
…		…
347	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
348		477
349	$coro	478	$coro
350	}	479	}
351		480
352	sub write_runtime {	481	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		482
355	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.
356		487
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	488	=cut
358	or return;
359		489
360	my $value = $cf::RUNTIME + 90 + 10;	490	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	491	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		492
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	493	# we seemingly have to make a local copy of the whole thing,
365	and return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
366		496
367	# always fsync - this file is important	497	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	498	reset_signals;
369	and return;	499	&$cb
		500	}, @args;
370		501
371	close $fh	502	wantarray ? @res : $res[-1]
372	or return;	503	}
373		504
374	aio_rename "$runtime~", $runtime	505	=item $value = cf::db_get $family => $key
375	and return;
376		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
377	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"
378	}	630	}
379		631
380	=item cf::datalog type => key => value, ...	632	=item cf::datalog type => key => value, ...
381		633
382	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.
…		…
400	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")
401	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
402		654
403	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>
404	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
405	crossfire+).	657	Crossfire TRT).
406		658
407	=over 4	659	=over 4
408		660
409	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
410		662
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
574		826
575	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		831
580	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	833	my $pkg = shift @arg;
582		834
583	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
613	}	865	}
614		866
615	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
616	} else {	868	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	870	}
619		871
620	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
621	}	873	}
622		874
…		…
624	if (ref $_[0]) {	876	if (ref $_[0]) {
625	_object_attach @_;	877	_object_attach @_;
626	} else {	878	} else {
627	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
628	}	880	}
		881	_recalc_want;
629	};	882	};
630		883
631	# all those should be optimised	884	# all those should be optimised
632	sub cf::attachable::detach {	885	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
637	reattach ($obj);	890	reattach ($obj);
638	} else {	891	} else {
639	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
640	}	893	}
		894	_recalc_want;
641	};	895	};
642		896
643	sub cf::attachable::attached {	897	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
645		899
…		…
660	";	914	";
661	die if $@;	915	die if $@;
662	}	916	}
663		917
664	our $override;	918	our $override;
665	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?
666		920
667	sub override {	921	sub override {
668	$override = 1;	922	$override = 1;
669	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
670	}	924	}
671		925
672	sub do_invoke {	926	sub do_invoke {
673	my $event = shift;	927	my $event = shift;
674	my $callbacks = shift;	928	my $callbacks = shift;
675		929
676	@invoke_results = ();	930	@INVOKE_RESULTS = ();
677		931
678	local $override;	932	local $override;
679		933
680	for (@$callbacks) {	934	for (@$callbacks) {
681	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
698		952
699	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
700		954
701	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
702	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
703	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		958
705	=back	959	=back
706		960
707	=cut	961	=cut
708		962
709	#############################################################################	963	#############################################################################
710	# 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	}
711		976
712	sub reattach {	977	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	979	my ($obj) = @_;
715		980
…		…
760	);	1025	);
761		1026
762	sub object_freezer_save {	1027	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
764		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
765	sync_job {	1032	sync_job {
766	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
769		1037
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1041	aio_fsync $fh if $cf::USE_FSYNC;
…		…
792	}	1060	}
793	} else {	1061	} else {
794	aio_unlink $filename;	1062	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
796	}	1064	}
797	}	1065	};
		1066
		1067	undef $guard;
798	}	1068	}
799		1069
800	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
802		1072
…		…
807		1077
808	sub object_thawer_load {	1078	sub object_thawer_load {
809	my ($filename) = @_;	1079	my ($filename) = @_;
810		1080
811	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
812		1084
813	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
814	or return;	1086	or return;
815		1087
816	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
818	or return;	1090	or return;
		1091
		1092	undef $guard;
819	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1094	}
821		1095
		1096	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
824	return ($data, $av);	1100	($data, $av)
825	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
826		1108
827	#############################################################################	1109	#############################################################################
828	# command handling &c	1110	# command handling &c
829		1111
830	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1126	}
845		1127
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1129
848	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.
849		1135
850	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
851	called.	1137	called.
852		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
853	=cut	1150	=cut
854		1151
855	sub register_extcmd {	1152	sub register_extcmd {
856	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
857		1154
858	$EXTCMD{$name} = $cb;	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
859	}	1162	}
860		1163
861	cf::player->attach (	1164	cf::player->attach (
862	on_command => sub {	1165	on_command => sub {
863	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1175	cf::override;
873	},	1176	},
874	on_extcmd => sub {	1177	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
876		1179
877	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1181
879	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
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
885	} else {	1197	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1199	}
888		1200
889	cf::override;	1201	cf::override;
890	},	1202	},
891	);	1203	);
892		1204
893	sub load_extension {
894	my ($path) = @_;
895
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
897	my $base = $1;
898	my $pkg = $1;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}
921	die $@;
922	}
923
924	push @EXTS, $pkg;
925	}
926
927	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
928	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1210	next unless -r $path;
930	eval {	1211
931	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;
932	1	1269	}
933	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
934	}	1275	};
935	}	1276	}
936		1277
937	#############################################################################	1278	#############################################################################
938		1279
		1280	=back
		1281
939	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
940		1283
941	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
942		1285
943	=cut	1286	=cut
…		…
948		1291
949	=head3 cf::player	1292	=head3 cf::player
950		1293
951	=over 4	1294	=over 4
952		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
953	=item cf::player::find $login	1310	=item cf::player::find $login
954		1311
955	Returns the given player object, loading it if necessary (might block).	1312	Returns the given player object, loading it if necessary (might block).
956		1313
957	=cut	1314	=cut
958		1315
959	sub playerdir($) {	1316	sub playerdir($) {
960	cf::localdir	1317	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1319	}
966		1320
967	sub path($) {	1321	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1352	aio_unlink +(playerdir $login) . "/$login.pl";
999		1353
1000	my $pl = load_pl path $login	1354	my $f = new_from_file cf::object::thawer path $login
1001	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;
1002	$cf::PLAYER{$login} = $pl	1362	$cf::PLAYER{$login} = $pl
1003	}	1363	}
1004	}	1364	}
1005	}	1365	}
1006		1366
…		…
1016		1376
1017	aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
1019		1379
1020	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
1021	Coro::cede;	1381	cf::cede_to_tick;
1022	}	1382	}
1023		1383
1024	sub new($) {	1384	sub new($) {
1025	my ($login) = @_;	1385	my ($login) = @_;
1026		1386
…		…
1030	$self->{deny_save} = 1;	1390	$self->{deny_save} = 1;
1031		1391
1032	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1033		1393
1034	$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 (@_);
1035	}	1405	}
1036		1406
1037	=item $pl->quit_character	1407	=item $pl->quit_character
1038		1408
1039	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
…		…
1088	while and may block, so not sync_job-capable, ever.	1458	while and may block, so not sync_job-capable, ever.
1089		1459
1090	=cut	1460	=cut
1091		1461
1092	sub list_logins {	1462	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1463	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1464	or return [];
1095		1465
1096	my @logins;	1466	my @logins;
1097		1467
1098	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") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1474	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
1102		1477
1103	utf8::decode $login;	1478	utf8::decode $login;
1104	push @logins, $login;	1479	push @logins, $login;
1105	}	1480	}
1106		1481
…		…
1133	}	1508	}
1134		1509
1135	\@paths	1510	\@paths
1136	}	1511	}
1137		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
1138	=item $player->ext_reply ($msgid, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1139		1565
1140	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1141		1567
1142	=cut	1568	=cut
1143		1569
1144	sub ext_reply($$%) {	1570	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1146		1572
1147	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1574	}
1151		1575
1152	=item $player->ext_event ($type, %msg)	1576	=item $player->ext_msg ($type, @msg)
1153		1577
1154	Sends an ext event to the client.	1578	Sends an ext event to the client.
1155		1579
1156	=cut	1580	=cut
1157		1581
1158	sub ext_event($$%) {	1582	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1583	my ($self, $type, @msg) = @_;
1160		1584
1161	$self->ns->ext_event ($type, %msg);	1585	$self->ns->ext_msg ($type, @msg);
1162	}	1586	}
1163		1587
1164	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	$match
		1615	}
1165		1616
1166	=back	1617	=back
1167
1168		1618
1169	=head3 cf::map	1619	=head3 cf::map
1170		1620
1171	=over 4	1621	=over 4
1172		1622
…		…
1227	my ($self, $merge) = @_;	1677	my ($self, $merge) = @_;
1228		1678
1229	# we have to keep some variables in memory intact	1679	# we have to keep some variables in memory intact
1230	local $self->{path};	1680	local $self->{path};
1231	local $self->{load_path};	1681	local $self->{load_path};
1232	local $self->{deny_save};
1233	local $self->{deny_reset};
1234		1682
1235	$self->SUPER::thawer_merge ($merge);	1683	$self->SUPER::thawer_merge ($merge);
1236	}	1684	}
1237		1685
1238	sub normalise {	1686	sub normalise {
…		…
1285	$self->init; # pass $1 etc.	1733	$self->init; # pass $1 etc.
1286	return $self;	1734	return $self;
1287	}	1735	}
1288	}	1736	}
1289		1737
1290	Carp::carp "unable to resolve path '$path' (base '$base').";	1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
1291	()	1739	()
1292	}	1740	}
1293		1741
1294	sub init {	1742	sub init {
1295	my ($self) = @_;	1743	my ($self) = @_;
…		…
1310		1758
1311	# the original (read-only) location	1759	# the original (read-only) location
1312	sub load_path {	1760	sub load_path {
1313	my ($self) = @_;	1761	my ($self) = @_;
1314		1762
1315	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1763	"$MAPDIR/$self->{path}.map"
1316	}	1764	}
1317		1765
1318	# the temporary/swap location	1766	# the temporary/swap location
1319	sub save_path {	1767	sub save_path {
1320	my ($self) = @_;	1768	my ($self) = @_;
1321		1769
1322	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1323	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1771	"$TMPDIR/$path.map"
1324	}	1772	}
1325		1773
1326	# the unique path, undef == no special unique path	1774	# the unique path, undef == no special unique path
1327	sub uniq_path {	1775	sub uniq_path {
1328	my ($self) = @_;	1776	my ($self) = @_;
1329		1777
1330	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1331	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1779	"$UNIQUEDIR/$path"
1332	}	1780	}
1333		1781
1334	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1335	# all maps in C++...	1783	# all maps in C++...
1336	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1338		1786
1339	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1340	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1341	}	1789	}
1342		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
1343	sub unlink_save {	1799	sub unlink_save {
1344	my ($self) = @_;	1800	my ($self) = @_;
1345		1801
1346	utf8::encode (my $save = $self->save_path);	1802	utf8::encode (my $save = $self->save_path);
1347	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1350		1806
1351	sub load_header_from($) {	1807	sub load_header_from($) {
1352	my ($self, $path) = @_;	1808	my ($self, $path) = @_;
1353		1809
1354	utf8::encode $path;	1810	utf8::encode $path;
1355	#aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1356	# or return;
1357
1358	$self->_load_header ($path)
1359	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;
1360		1819
1361	$self->{load_path} = $path;	1820	$self->{load_path} = $path;
1362		1821
1363	1	1822	1
1364	}	1823	}
…		…
1403	$self->load_header_orig	1862	$self->load_header_orig
1404	or return;	1863	or return;
1405	$self->prepare_orig;	1864	$self->prepare_orig;
1406	}	1865	}
1407		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 $self->default_region;
		1872
1408	1	1873	1
1409	}	1874	}
1410		1875
1411	sub find;	1876	sub find;
1412	sub find {	1877	sub find {
1413	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1414		1879
1415	$path = normalise $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1416		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1417	cf::lock_wait "map_find:$path";	1883	cf::lock_wait "map_find:$path";
1418		1884
1419	$cf::MAP{$path} || do {	1885	$cf::MAP{$path} || do {
1420	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
1421	my $map = new_from_path cf::map $path	1889	my $map = new_from_path cf::map $path
1422	or return;	1890	or return;
1423		1891
1424	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1425		1893
1426	$map->load_header	1894	$map->load_header
1427	or return;	1895	or return;
1428		1896
1429	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1430	# doing this can freeze the server in a sync job, obviously	1898	# doing this can freeze the server in a sync job, obviously
1431	#$cf::WAIT_FOR_TICK->wait;	1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1432	$map->reset;	1902	$map->reset;
1433	undef $guard;
1434	return find $path;	1903	return find $path;
1435	}	1904	}
1436		1905
1437	$cf::MAP{$path} = $map	1906	$cf::MAP{$path} = $map
1438	}	1907	}
…		…
1445	my ($self) = @_;	1914	my ($self) = @_;
1446		1915
1447	local $self->{deny_reset} = 1; # loading can take a long time	1916	local $self->{deny_reset} = 1; # loading can take a long time
1448		1917
1449	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1450	my $guard = cf::lock_acquire "map_load:$path";	1921	my $guard = cf::lock_acquire "map_data:$path";
1451		1922
		1923	return unless $self->valid;
1452	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1453		1925
1454	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1455		1927
1456	$self->alloc;	1928	$self->alloc;
1457		1929
1458	$self->pre_load;	1930	$self->pre_load;
		1931	cf::cede_to_tick;
1459		1932
1460	$self->_load_objects ($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)
1461	or return;	1936	or return;
1462		1937
1463	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1464	if delete $self->{load_original};	1939	if delete $self->{load_original};
1465		1940
1466	if (my $uniq = $self->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1467	utf8::encode $uniq;	1942	utf8::encode $uniq;
1468	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1469	$self->clear_unique_items;	1945	$self->clear_unique_items;
1470	$self->_load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1471	}	1949	}
1472	}	1950	}
1473		1951
1474	Coro::cede;	1952	$f->resolve_delayed_derefs;
1475		1953
		1954	cf::cede_to_tick;
1476	# now do the right thing for maps	1955	# now do the right thing for maps
1477	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1478
1479	unless ($self->{deny_activate}) {
1480	$self->decay_objects;
1481	$self->fix_auto_apply;
1482	$self->update_buttons;
1483	Coro::cede;
1484	$self->set_darkness_map;
1485	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1486	unless $self->difficulty;	1958	unless $self->difficulty;
1487	Coro::cede;	1959	cf::cede_to_tick;
		1960
		1961	unless ($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;
1488	$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);
1489	}	1975	}
1490		1976
1491	$self->post_load;	1977	$self->post_load;
1492
1493	$self->in_memory (cf::MAP_IN_MEMORY);
1494	}	1978	}
1495		1979
1496	sub customise_for {	1980	sub customise_for {
1497	my ($self, $ob) = @_;	1981	my ($self, $ob) = @_;
1498		1982
1499	return find "~" . $ob->name . "/" . $self->{path}	1983	return find "~" . $ob->name . "/" . $self->{path}
1500	if $self->per_player;	1984	if $self->per_player;
1501		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
1502	$self	1989	$self
1503	}	1990	}
1504		1991
1505	# find and load all maps in the 3x3 area around a map	1992	# find and load all maps in the 3x3 area around a map
1506	sub load_diag {	1993	sub load_neighbours {
1507	my ($map) = @_;	1994	my ($map) = @_;
1508		1995
1509	my @diag; # diagonal neighbours	1996	my @neigh; # diagonal neighbours
1510		1997
1511	for (0 .. 3) {	1998	for (0 .. 3) {
1512	my $neigh = $map->tile_path ($_)	1999	my $neigh = $map->tile_path ($_)
1513	or next;	2000	or next;
1514	$neigh = find $neigh, $map	2001	$neigh = find $neigh, $map
1515	or next;	2002	or next;
1516	$neigh->load;	2003	$neigh->load;
1517		2004
		2005	push @neigh,
1518	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1519	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1520	}	2008	}
1521		2009
1522	for (@diag) {	2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
1523	my $neigh = find @$_	2012	my $neigh = find $path, $origin
1524	or next;	2013	or next;
1525	$neigh->load;	2014	$neigh->load;
1526	}	2015	}
1527	}	2016	}
1528		2017
…		…
1533	}	2022	}
1534		2023
1535	sub do_load_sync {	2024	sub do_load_sync {
1536	my ($map) = @_;	2025	my ($map) = @_;
1537		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1538	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
1539	}	2031	}
1540		2032
1541	our %MAP_PREFETCH;	2033	our %MAP_PREFETCH;
1542	our $MAP_PREFETCHER = undef;	2034	our $MAP_PREFETCHER = undef;
1543		2035
1544	sub find_async {	2036	sub find_async {
1545	my ($path, $origin) = @_;	2037	my ($path, $origin, $load) = @_;
1546		2038
1547	$path = normalise $path, $origin && $origin->{path};	2039	$path = normalise $path, $origin && $origin->{path};
1548		2040
1549	if (my $map = $cf::MAP{$path}) {	2041	if (my $map = $cf::MAP{$path}) {
1550	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1551	}	2043	}
1552		2044
1553	undef $MAP_PREFETCH{$path};	2045	$MAP_PREFETCH{$path} |= $load;
		2046
1554	$MAP_PREFETCHER ||= cf::async {	2047	$MAP_PREFETCHER ||= cf::async {
1555	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1556	for my $path (keys %MAP_PREFETCH) {	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1557	my $map = find $path	2050	if (my $map = find $k) {
1558	or next;
1559	$map->load;	2051	$map->load if $v;
		2052	}
1560		2053
1561	delete $MAP_PREFETCH{$path};	2054	delete $MAP_PREFETCH{$k};
1562	}	2055	}
1563	}	2056	}
1564	undef $MAP_PREFETCHER;	2057	undef $MAP_PREFETCHER;
1565	};	2058	};
1566	$MAP_PREFETCHER->prio (6);	2059	$MAP_PREFETCHER->prio (6);
…		…
1569	}	2062	}
1570		2063
1571	sub save {	2064	sub save {
1572	my ($self) = @_;	2065	my ($self) = @_;
1573		2066
1574	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1575		2068
1576	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1577		2070
1578	return unless $self->dirty;	2071	return unless $self->dirty;
1579		2072
…		…
1602	my ($self) = @_;	2095	my ($self) = @_;
1603		2096
1604	# save first because save cedes	2097	# save first because save cedes
1605	$self->save;	2098	$self->save;
1606		2099
1607	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1608		2101
1609	return if $self->players;	2102	return if $self->players;
1610	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1611	return if $self->{deny_save};	2104	return if $self->{deny_save};
1612		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1613	$self->clear;	2110	$self->clear;
1614	$self->in_memory (cf::MAP_SWAPPED);
1615	}	2111	}
1616		2112
1617	sub reset_at {	2113	sub reset_at {
1618	my ($self) = @_;	2114	my ($self) = @_;
1619		2115
1620	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1621	return 1e99 if $self->isa ("ext::map_per_player");#d#
1622	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1623		2118
1624	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1625	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1626		2121
…		…
1637	my ($self) = @_;	2132	my ($self) = @_;
1638		2133
1639	my $lock = cf::lock_acquire "map_data:$self->{path}";	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2135
1641	return if $self->players;	2136	return if $self->players;
1642	return if $self->isa ("ext::map_per_player");#d#
1643		2137
1644	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
1645		2139
1646	$self->in_memory (cf::MAP_SWAPPED);	2140	$self->in_memory (cf::MAP_SWAPPED);
1647		2141
1648	# need to save uniques path	2142	# need to save uniques path
1649	unless ($self->{deny_save}) {	2143	unless ($self->{deny_save}) {
…		…
1653	if $uniq;	2147	if $uniq;
1654	}	2148	}
1655		2149
1656	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1657		2151
		2152	$self->deactivate;
		2153	$_->clear_links_to ($self) for values %cf::MAP;
1658	$self->clear;	2154	$self->clear;
1659
1660	$_->clear_links_to ($self) for values %cf::MAP;
1661		2155
1662	$self->unlink_save;	2156	$self->unlink_save;
1663	$self->destroy;	2157	$self->destroy;
1664	}	2158	}
1665		2159
1666	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1667		2161
1668	sub nuke {	2162	sub nuke {
1669	my ($self) = @_;	2163	my ($self) = @_;
1670		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
1671	delete $cf::MAP{$self->path};	2168	delete $cf::MAP{$self->path};
1672		2169
1673	$self->unlink_save;	2170	$self->unlink_save;
1674		2171
1675	bless $self, "cf::map";	2172	bless $self, "cf::map";
1676	delete $self->{deny_reset};	2173	delete $self->{deny_reset};
1677	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1678	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1679	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1680		2177
1681	$cf::MAP{$self->path} = $self;	2178	$cf::MAP{$self->path} = $self;
		2179	}
1682		2180
1683	$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	]
1684	}	2218	}
1685		2219
1686	=item cf::map::unique_maps	2220	=item cf::map::unique_maps
1687		2221
1688	Returns an arrayref of paths of all shared maps that have	2222	Returns an arrayref of paths of all shared maps that have
1689	instantiated unique items. May block.	2223	instantiated unique items. May block.
1690		2224
1691	=cut	2225	=cut
1692		2226
1693	sub unique_maps() {	2227	sub unique_maps() {
1694	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2228	[
1695	or return;	2229	map {
1696
1697	my @paths;
1698
1699	for (@$files) {
1700	utf8::decode $_;	2230	utf8::decode $_;
1701	next if /\.pst$/;	2231	/\.map$/
1702	next unless /^$PATH_SEP/o;	2232	? normalise $_
1703		2233	: ()
1704	push @paths, cf::map::normalise $_;	2234	} @{ aio_readdir $UNIQUEDIR or [] }
1705	}	2235	]
1706
1707	\@paths
1708	}	2236	}
1709		2237
1710	package cf;	2238	package cf;
1711		2239
1712	=back	2240	=back
…		…
1730	map { $_, inv_recursive_ $_->inv } @_	2258	map { $_, inv_recursive_ $_->inv } @_
1731	}	2259	}
1732		2260
1733	sub inv_recursive {	2261	sub inv_recursive {
1734	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	}
1735	}	2294	}
1736		2295
1737	package cf;	2296	package cf;
1738		2297
1739	=back	2298	=back
…		…
1758		2317
1759	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1760		2319
1761	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1762	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1763	} 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 {
1764	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1765	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1766	}	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 (@_);
1767	}	2345	}
1768		2346
1769	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1770		2348
1771	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1818	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1819		2397
1820	return if UNIVERSAL::isa $self->map, "ext::map_link";	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1821		2399
1822	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1823	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1824		2402
1825	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1826	}	2404	}
1827		2405
1828	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1829	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1830		2410
1831	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1832		2412
1833	unless ($map) {	2413	unless ($map) {
1834	# restore original map position	2414	# restore original map position
…		…
1848	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1849	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1850	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1851		2431
1852	$map->load;	2432	$map->load;
1853	$map->load_diag;	2433	$map->load_neighbours;
1854		2434
1855	return unless $self->contr->active;	2435	return unless $self->contr->active;
1856	$self->activate_recursive;	2436	$self->activate_recursive;
1857		2437
1858	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1859	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1860	}	2440	}
1861		2441
1862	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1863	on_logout => sub {
1864	my ($pl) = @_;
1865		2443
1866	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1867	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1868	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1869	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1870	};	2448	be called at the end of this process.
1871	}
1872	},
1873	on_login => sub {
1874	my ($pl) = @_;
1875		2449
1876	# try to abort aborted map switching on player login :)
1877	# should happen only on crashes
1878	if ($pl->ob->{_link_pos}) {
1879	$pl->ob->enter_link;
1880	(async {
1881	$pl->ob->reply (undef,
1882	"There was an internal problem at your last logout, "
1883	. "the server will try to bring you to your intended destination in a second.",
1884	cf::NDI_RED);
1885	# we need this sleep as the login has a concurrent enter_exit running
1886	# and this sleep increases chances of the player not ending up in scorn
1887	Coro::Timer::sleep 1;
1888	$pl->ob->leave_link;
1889	})->prio (2);
1890	}
1891	},
1892	);
1893
1894	=item $player_object->goto ($path, $x, $y)
1895
1896	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1897		2453
1898	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1899	my ($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;
1900		2459
1901	$self->enter_link;	2460	$self->enter_link;
1902		2461
1903	(async {	2462	(async {
		2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2468	}
		2469	}
		2470
1904	my $map = eval {	2471	my $map = eval {
1905	my $map = cf::map::find $path;	2472	my $map = cf::map::find $path;
		2473
		2474	if ($map) {
1906	$map = $map->customise_for ($self) if $map;	2475	$map = $map->customise_for ($self);
		2476	$map = $check->($map) if $check && $map;
		2477	} else {
		2478	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2479	}
		2480
1907	$map	2481	$map
		2482	};
		2483
		2484	if ($@) {
		2485	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2486	LOG llevError | logBacktrace, Carp::longmess $@;
1908	} or	2487	}
1909	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1910		2488
		2489	if ($gen == $self->{_goto_generation}) {
		2490	delete $self->{_goto_generation};
1911	$self->leave_link ($map, $x, $y);	2491	$self->leave_link ($map, $x, $y);
		2492	}
		2493
		2494	$done->() if $done;
1912	})->prio (1);	2495	})->prio (1);
1913	}	2496	}
1914		2497
1915	=item $player_object->enter_exit ($exit_object)	2498	=item $player_object->enter_exit ($exit_object)
1916		2499
…		…
1955		2538
1956	$rmp->{random_seed} ||= $exit->random_seed;	2539	$rmp->{random_seed} ||= $exit->random_seed;
1957		2540
1958	my $data = cf::to_json $rmp;	2541	my $data = cf::to_json $rmp;
1959	my $md5 = Digest::MD5::md5_hex $data;	2542	my $md5 = Digest::MD5::md5_hex $data;
1960	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2543	my $meta = "$RANDOMDIR/$md5.meta";
1961		2544
1962	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2545	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1963	aio_write $fh, 0, (length $data), $data, 0;	2546	aio_write $fh, 0, (length $data), $data, 0;
1964	undef $fh;	2547	undef $fh;
1965	aio_rename "$meta~", $meta;	2548	aio_rename "$meta~", $meta;
…		…
1984	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2567	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1985	my $hp = $exit->stats->hp;	2568	my $hp = $exit->stats->hp;
1986	my $sp = $exit->stats->sp;	2569	my $sp = $exit->stats->sp;
1987		2570
1988	$self->enter_link;	2571	$self->enter_link;
		2572
		2573	# if exit is damned, update players death & WoR home-position
		2574	$self->contr->savebed ($slaying, $hp, $sp)
		2575	if $exit->flag (FLAG_DAMNED);
1989		2576
1990	(async {	2577	(async {
1991	$self->deactivate_recursive; # just to be sure	2578	$self->deactivate_recursive; # just to be sure
1992	unless (eval {	2579	unless (eval {
1993	$self->goto ($slaying, $hp, $sp);	2580	$self->goto ($slaying, $hp, $sp);
…		…
2021		2608
2022	utf8::encode $text;	2609	utf8::encode $text;
2023	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2610	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2024	}	2611	}
2025		2612
		2613	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2614
		2615	Send a drawinfo or msg packet to the client, formatting the msg for the
		2616	client if neccessary. C<$type> should be a string identifying the type of
		2617	the message, with C<log> being the default. If C<$color> is negative, suppress
		2618	the message unless the client supports the msg packet.
		2619
		2620	=cut
		2621
		2622	our %CHANNEL = (
		2623	"c/identify" => {
		2624	id => "identify",
		2625	title => "Identify",
		2626	reply => undef,
		2627	tooltip => "Items recently identified",
		2628	},
		2629	"c/examine" => {
		2630	id => "examine",
		2631	title => "Examine",
		2632	reply => undef,
		2633	tooltip => "Signs and other items you examined",
		2634	},
		2635	);
		2636
		2637	sub cf::client::send_msg {
		2638	my ($self, $channel, $msg, $color, @extra) = @_;
		2639
		2640	$msg = $self->pl->expand_cfpod ($msg);
		2641
		2642	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2643
		2644	# check predefined channels, for the benefit of C
		2645	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2646
		2647	if (ref $channel) {
		2648	# send meta info to client, if not yet sent
		2649	unless (exists $self->{channel}{$channel->{id}}) {
		2650	$self->{channel}{$channel->{id}} = $channel;
		2651	$self->ext_msg (channel_info => $channel)
		2652	if $self->can_msg;
		2653	}
		2654
		2655	$channel = $channel->{id};
		2656	}
		2657
		2658	return unless @extra || length $msg;
		2659
		2660	if ($self->can_msg) {
		2661	# default colour, mask it out
		2662	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2663	if $color & cf::NDI_DEF;
		2664
		2665	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2666	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2667	} else {
		2668	if ($color >= 0) {
		2669	# replace some tags by gcfclient-compatible ones
		2670	for ($msg) {
		2671	1 while
		2672	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2673	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2674	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2675	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2676	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2677	}
		2678
		2679	$color &= cf::NDI_COLOR_MASK;
		2680
		2681	utf8::encode $msg;
		2682
		2683	if (0 && $msg =~ /\[/) {
		2684	# COMMAND/INFO
		2685	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2686	} else {
		2687	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2688	$self->send_packet ("drawinfo $color $msg")
		2689	}
		2690	}
		2691	}
		2692	}
		2693
2026	=item $client->ext_event ($type, %msg)	2694	=item $client->ext_msg ($type, @msg)
2027		2695
2028	Sends an exti event to the client.	2696	Sends an ext event to the client.
2029		2697
2030	=cut	2698	=cut
2031		2699
2032	sub cf::client::ext_event($$%) {	2700	sub cf::client::ext_msg($$@) {
2033	my ($self, $type, %msg) = @_;	2701	my ($self, $type, @msg) = @_;
2034		2702
		2703	if ($self->extcmd == 2) {
		2704	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2705	} elsif ($self->extcmd == 1) { # TODO: remove
2035	$msg{msgtype} = "event_$type";	2706	push @msg, msgtype => "event_$type";
2036	$self->send_packet ("ext " . cf::to_json \%msg);	2707	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2708	}
		2709	}
		2710
		2711	=item $client->ext_reply ($msgid, @msg)
		2712
		2713	Sends an ext reply to the client.
		2714
		2715	=cut
		2716
		2717	sub cf::client::ext_reply($$@) {
		2718	my ($self, $id, @msg) = @_;
		2719
		2720	if ($self->extcmd == 2) {
		2721	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2722	} elsif ($self->extcmd == 1) {
		2723	#TODO: version 1, remove
		2724	unshift @msg, msgtype => "reply", msgid => $id;
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2726	}
2037	}	2727	}
2038		2728
2039	=item $success = $client->query ($flags, "text", \&cb)	2729	=item $success = $client->query ($flags, "text", \&cb)
2040		2730
2041	Queues a query to the client, calling the given callback with	2731	Queues a query to the client, calling the given callback with
2042	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2732	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2043	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2733	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2044		2734
2045	Queries can fail, so check the return code. Or don't, as queries will become	2735	Queries can fail, so check the return code. Or don't, as queries will
2046	reliable at some point in the future.	2736	become reliable at some point in the future.
2047		2737
2048	=cut	2738	=cut
2049		2739
2050	sub cf::client::query {	2740	sub cf::client::query {
2051	my ($self, $flags, $text, $cb) = @_;	2741	my ($self, $flags, $text, $cb) = @_;
…		…
2059	utf8::encode $text;	2749	utf8::encode $text;
2060	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2750	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2061		2751
2062	$self->send_packet ($self->{query_queue}[0][0])	2752	$self->send_packet ($self->{query_queue}[0][0])
2063	if @{ $self->{query_queue} } == 1;	2753	if @{ $self->{query_queue} } == 1;
		2754
		2755	1
2064	}	2756	}
2065		2757
2066	cf::client->attach (	2758	cf::client->attach (
		2759	on_connect => sub {
		2760	my ($ns) = @_;
		2761
		2762	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2763	},
2067	on_reply => sub {	2764	on_reply => sub {
2068	my ($ns, $msg) = @_;	2765	my ($ns, $msg) = @_;
2069		2766
2070	# this weird shuffling is so that direct followup queries	2767	# this weird shuffling is so that direct followup queries
2071	# get handled first	2768	# get handled first
…		…
2083	} else {	2780	} else {
2084	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2781	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2085	}	2782	}
2086	}	2783	}
2087	},	2784	},
		2785	on_exticmd => sub {
		2786	my ($ns, $buf) = @_;
		2787
		2788	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2789
		2790	if (ref $msg) {
		2791	my ($type, $reply, @payload) =
		2792	"ARRAY" eq ref $msg
		2793	? @$msg
		2794	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2795
		2796	my @reply;
		2797
		2798	if (my $cb = $EXTICMD{$type}) {
		2799	@reply = $cb->($ns, @payload);
		2800	}
		2801
		2802	$ns->ext_reply ($reply, @reply)
		2803	if $reply;
		2804
		2805	} else {
		2806	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2807	}
		2808
		2809	cf::override;
		2810	},
2088	);	2811	);
2089		2812
2090	=item $client->async (\&cb)	2813	=item $client->async (\&cb)
2091		2814
2092	Create a new coroutine, running the specified callback. The coroutine will	2815	Create a new coroutine, running the specified callback. The coroutine will
…		…
2133	our $safe = new Safe "safe";	2856	our $safe = new Safe "safe";
2134	our $safe_hole = new Safe::Hole;	2857	our $safe_hole = new Safe::Hole;
2135		2858
2136	$SIG{FPE} = 'IGNORE';	2859	$SIG{FPE} = 'IGNORE';
2137		2860
2138	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2861	$safe->permit_only (Opcode::opset qw(
		2862	:base_core :base_mem :base_orig :base_math
		2863	grepstart grepwhile mapstart mapwhile
		2864	sort time
		2865	));
2139		2866
2140	# here we export the classes and methods available to script code	2867	# here we export the classes and methods available to script code
2141		2868
2142	=pod	2869	=pod
2143		2870
2144	The following functions and methods are available within a safe environment:	2871	The following functions and methods are available within a safe environment:
2145		2872
2146	cf::object contr pay_amount pay_player map	2873	cf::object
		2874	contr pay_amount pay_player map x y force_find force_add
		2875	insert remove name archname title slaying race decrease_ob_nr
		2876
2147	cf::object::player player	2877	cf::object::player
2148	cf::player peaceful	2878	player
2149	cf::map trigger	2879
		2880	cf::player
		2881	peaceful
		2882
		2883	cf::map
		2884	trigger
2150		2885
2151	=cut	2886	=cut
2152		2887
2153	for (	2888	for (
2154	["cf::object" => qw(contr pay_amount pay_player map)],	2889	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2890	insert remove inv name archname title slaying race
		2891	decrease_ob_nr)],
2155	["cf::object::player" => qw(player)],	2892	["cf::object::player" => qw(player)],
2156	["cf::player" => qw(peaceful)],	2893	["cf::player" => qw(peaceful)],
2157	["cf::map" => qw(trigger)],	2894	["cf::map" => qw(trigger)],
2158	) {	2895	) {
2159	no strict 'refs';	2896	no strict 'refs';
…		…
2230	=back	2967	=back
2231		2968
2232	=cut	2969	=cut
2233		2970
2234	#############################################################################	2971	#############################################################################
2235
2236	=head2 EXTENSION DATABASE SUPPORT
2237
2238	Crossfire maintains a very simple database for extension use. It can
2239	currently store anything that can be serialised using Storable, which
2240	excludes objects.
2241
2242	The parameter C<$family> should best start with the name of the extension
2243	using it, it should be unique.
2244
2245	=over 4
2246
2247	=item $value = cf::db_get $family => $key
2248
2249	Returns a single value from the database.
2250
2251	=item cf::db_put $family => $key => $value
2252
2253	Stores the given C<$value> in the family.
2254
2255	=cut
2256
2257	our $DB;
2258
2259	sub db_init {
2260	unless ($DB) {
2261	$DB = BDB::db_create $DB_ENV;
2262
2263	cf::sync_job {
2264	eval {
2265	$DB->set_flags (BDB::CHKSUM);
2266
2267	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2268	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2269	cf::cleanup "db_open(db): $!" if $!;
2270	};
2271	cf::cleanup "db_open(db): $@" if $@;
2272	};
2273
2274	my $path = cf::localdir . "/database.pst";
2275	if (stat $path) {
2276	cf::sync_job {
2277	my $pst = Storable::retrieve $path;
2278
2279	cf::db_put (board => data => $pst->{board});
2280	cf::db_put (guildrules => data => $pst->{guildrules});
2281	cf::db_put (rent => balance => $pst->{rent}{balance});
2282	BDB::db_env_txn_checkpoint $DB_ENV;
2283
2284	unlink $path;
2285	};
2286	}
2287	}
2288	}
2289
2290	sub db_get($$) {
2291	my $key = "$_[0]/$_[1]";
2292
2293	cf::sync_job {
2294	BDB::db_get $DB, undef, $key, my $data;
2295
2296	$! ? ()
2297	: Compress::LZF::sthaw $data
2298	}
2299	}
2300
2301	sub db_put($$$) {
2302	BDB::dbreq_pri 4;
2303	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2304	}
2305
2306	#############################################################################
2307	# the server's init and main functions	2972	# the server's init and main functions
2308		2973
2309	sub load_facedata {	2974	sub load_facedata($) {
2310	my $path = sprintf "%s/facedata", cf::datadir;	2975	my ($path) = @_;
		2976
		2977	# HACK to clear player env face cache, we need some signal framework
		2978	# for this (global event?)
		2979	%ext::player_env::MUSIC_FACE_CACHE = ();
		2980
		2981	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2311		2982
2312	warn "loading facedata from $path\n";	2983	warn "loading facedata from $path\n";
2313		2984
2314	my $facedata;	2985	my $facedata;
2315	0 < aio_load $path, $facedata	2986	0 < aio_load $path, $facedata
…		…
2318	$facedata = Coro::Storable::thaw $facedata;	2989	$facedata = Coro::Storable::thaw $facedata;
2319		2990
2320	$facedata->{version} == 2	2991	$facedata->{version} == 2
2321	or cf::cleanup "$path: version mismatch, cannot proceed.";	2992	or cf::cleanup "$path: version mismatch, cannot proceed.";
2322		2993
		2994	# patch in the exptable
		2995	$facedata->{resource}{"res/exp_table"} = {
		2996	type => FT_RSRC,
		2997	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		2998	};
		2999	cf::cede_to_tick;
		3000
2323	{	3001	{
2324	my $faces = $facedata->{faceinfo};	3002	my $faces = $facedata->{faceinfo};
2325		3003
2326	while (my ($face, $info) = each %$faces) {	3004	while (my ($face, $info) = each %$faces) {
2327	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3005	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2328	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3006	cf::face::set_visibility $idx, $info->{visibility};
		3007	cf::face::set_magicmap $idx, $info->{magicmap};
2329	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3008	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2330	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3009	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2331	Coro::cede;	3010
		3011	cf::cede_to_tick;
2332	}	3012	}
2333		3013
2334	while (my ($face, $info) = each %$faces) {	3014	while (my ($face, $info) = each %$faces) {
2335	next unless $info->{smooth};	3015	next unless $info->{smooth};
2336	my $idx = cf::face::find $face	3016	my $idx = cf::face::find $face
2337	or next;	3017	or next;
2338	if (my $smooth = cf::face::find $info->{smooth}) {	3018	if (my $smooth = cf::face::find $info->{smooth}) {
		3019	cf::face::set_smooth $idx, $smooth;
2339	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3020	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2340	} else {	3021	} else {
2341	warn "smooth face '$info->{smooth}' not found for face '$face'";	3022	warn "smooth face '$info->{smooth}' not found for face '$face'";
2342	}	3023	}
2343	Coro::cede;	3024
		3025	cf::cede_to_tick;
2344	}	3026	}
2345	}	3027	}
2346		3028
2347	{	3029	{
2348	my $anims = $facedata->{animinfo};	3030	my $anims = $facedata->{animinfo};
2349		3031
2350	while (my ($anim, $info) = each %$anims) {	3032	while (my ($anim, $info) = each %$anims) {
2351	cf::anim::set $anim, $info->{frames}, $info->{facings};	3033	cf::anim::set $anim, $info->{frames}, $info->{facings};
2352	Coro::cede;	3034	cf::cede_to_tick;
2353	}	3035	}
2354		3036
2355	cf::anim::invalidate_all; # d'oh	3037	cf::anim::invalidate_all; # d'oh
2356	}	3038	}
2357		3039
		3040	{
		3041	# TODO: for gcfclient pleasure, we should give resources
		3042	# that gcfclient doesn't grok a >10000 face index.
		3043	my $res = $facedata->{resource};
		3044
		3045	my $soundconf = delete $res->{"res/sound.conf"};
		3046
		3047	while (my ($name, $info) = each %$res) {
		3048	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3049	my $data;
		3050
		3051	if ($info->{type} & 1) {
		3052	# prepend meta info
		3053
		3054	my $meta = $enc->encode ({
		3055	name => $name,
		3056	%{ $info->{meta} || {} },
		3057	});
		3058
		3059	$data = pack "(w/a*)*", $meta, $info->{data};
		3060	} else {
		3061	$data = $info->{data};
		3062	}
		3063
		3064	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3065	cf::face::set_type $idx, $info->{type};
		3066
		3067	cf::cede_to_tick;
		3068	}
		3069
		3070	if ($soundconf) {
		3071	$soundconf = $enc->decode (delete $soundconf->{data});
		3072
		3073	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3074	my $sound = $soundconf->{compat}[$_]
		3075	or next;
		3076
		3077	my $face = cf::face::find "sound/$sound->[1]";
		3078	cf::sound::set $sound->[0] => $face;
		3079	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3080	}
		3081
		3082	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3083	my $face = cf::face::find "sound/$v";
		3084	cf::sound::set $k => $face;
		3085	}
		3086	}
		3087	}
		3088
2358	1	3089	1
2359	}	3090	}
2360		3091
		3092	register_exticmd fx_want => sub {
		3093	my ($ns, $want) = @_;
		3094
		3095	while (my ($k, $v) = each %$want) {
		3096	$ns->fx_want ($k, $v);
		3097	}
		3098	};
		3099
		3100	sub reload_regions {
		3101	# HACK to clear player env face cache, we need some signal framework
		3102	# for this (global event?)
		3103	%ext::player_env::MUSIC_FACE_CACHE = ();
		3104
		3105	load_resource_file "$MAPDIR/regions"
		3106	or die "unable to load regions file\n";
		3107
		3108	for (cf::region::list) {
		3109	$_->{match} = qr/$_->{match}/
		3110	if exists $_->{match};
		3111	}
		3112	}
		3113
		3114	sub reload_facedata {
		3115	load_facedata "$DATADIR/facedata"
		3116	or die "unable to load facedata\n";
		3117	}
		3118
		3119	sub reload_archetypes {
		3120	load_resource_file "$DATADIR/archetypes"
		3121	or die "unable to load archetypes\n";
		3122	#d# NEED to laod twice to resolve forward references
		3123	# this really needs to be done in an extra post-pass
		3124	# (which needs to be synchronous, so solve it differently)
		3125	load_resource_file "$DATADIR/archetypes"
		3126	or die "unable to load archetypes\n";
		3127	}
		3128
		3129	sub reload_treasures {
		3130	load_resource_file "$DATADIR/treasures"
		3131	or die "unable to load treasurelists\n";
		3132	}
		3133
2361	sub reload_resources {	3134	sub reload_resources {
2362	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3135	warn "reloading resource files...\n";
2363	or die "unable to load regions file\n";#d#	3136
		3137	reload_regions;
2364	load_facedata	3138	reload_facedata;
2365	or die "unable to load facedata\n";#d#	3139	#reload_archetypes;#d#
		3140	reload_archetypes;
		3141	reload_treasures;
		3142
		3143	warn "finished reloading resource files\n";
2366	}	3144	}
2367		3145
2368	sub init {	3146	sub init {
2369	reload_resources;	3147	reload_resources;
2370	}	3148	}
2371		3149
2372	sub cfg_load {	3150	sub reload_config {
2373	open my $fh, "<:utf8", cf::confdir . "/config"	3151	open my $fh, "<:utf8", "$CONFDIR/config"
2374	or return;	3152	or return;
2375		3153
2376	local $/;	3154	local $/;
2377	*CFG = YAML::Syck::Load <$fh>;	3155	*CFG = YAML::Syck::Load <$fh>;
2378		3156
…		…
2397	(async {	3175	(async {
2398	Event::one_event;	3176	Event::one_event;
2399	})->prio (Coro::PRIO_MAX);	3177	})->prio (Coro::PRIO_MAX);
2400	};	3178	};
2401		3179
2402	cfg_load;	3180	reload_config;
2403	db_init;	3181	db_init;
2404	load_extensions;	3182	load_extensions;
2405		3183
2406	$TICK_WATCHER->start;	3184	$TICK_WATCHER->start;
2407	Event::loop;	3185	Event::loop;
…		…
2423	},	3201	},
2424	);	3202	);
2425	}	3203	}
2426	}	3204	}
2427		3205
		3206	sub write_runtime {
		3207	my $runtime = "$LOCALDIR/runtime";
		3208
		3209	# first touch the runtime file to show we are still running:
		3210	# the fsync below can take a very very long time.
		3211
		3212	IO::AIO::aio_utime $runtime, undef, undef;
		3213
		3214	my $guard = cf::lock_acquire "write_runtime";
		3215
		3216	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3217	or return;
		3218
		3219	my $value = $cf::RUNTIME + 90 + 10;
		3220	# 10 is the runtime save interval, for a monotonic clock
		3221	# 60 allows for the watchdog to kill the server.
		3222
		3223	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3224	and return;
		3225
		3226	# always fsync - this file is important
		3227	aio_fsync $fh
		3228	and return;
		3229
		3230	# touch it again to show we are up-to-date
		3231	aio_utime $fh, undef, undef;
		3232
		3233	close $fh
		3234	or return;
		3235
		3236	aio_rename "$runtime~", $runtime
		3237	and return;
		3238
		3239	warn "runtime file written.\n";
		3240
		3241	1
		3242	}
		3243
2428	sub emergency_save() {	3244	sub emergency_save() {
2429	my $freeze_guard = cf::freeze_mainloop;	3245	my $freeze_guard = cf::freeze_mainloop;
2430		3246
2431	warn "enter emergency perl save\n";	3247	warn "enter emergency perl save\n";
2432		3248
…		…
2463		3279
2464	warn Carp::longmess "post_cleanup backtrace"	3280	warn Carp::longmess "post_cleanup backtrace"
2465	if $make_core;	3281	if $make_core;
2466	}	3282	}
2467		3283
2468	sub reload() {	3284	sub do_reload_perl() {
2469	# can/must only be called in main	3285	# can/must only be called in main
2470	if ($Coro::current != $Coro::main) {	3286	if ($Coro::current != $Coro::main) {
2471	warn "can only reload from main coroutine";	3287	warn "can only reload from main coroutine";
2472	return;	3288	return;
2473	}	3289	}
…		…
2507	%EXT_CORO = ();	3323	%EXT_CORO = ();
2508		3324
2509	warn "removing commands";	3325	warn "removing commands";
2510	%COMMAND = ();	3326	%COMMAND = ();
2511		3327
2512	warn "removing ext commands";	3328	warn "removing ext/exti commands";
2513	%EXTCMD = ();	3329	%EXTCMD = ();
		3330	%EXTICMD = ();
2514		3331
2515	warn "unloading/nuking all extensions";	3332	warn "unloading/nuking all extensions";
2516	for my $pkg (@EXTS) {	3333	for my $pkg (@EXTS) {
2517	warn "... unloading $pkg";	3334	warn "... unloading $pkg";
2518		3335
…		…
2548	Symbol::delete_package "safe::$_"	3365	Symbol::delete_package "safe::$_"
2549	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3366	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2550		3367
2551	warn "unloading cf.pm \"a bit\"";	3368	warn "unloading cf.pm \"a bit\"";
2552	delete $INC{"cf.pm"};	3369	delete $INC{"cf.pm"};
		3370	delete $INC{"cf/pod.pm"};
2553		3371
2554	# don't, removes xs symbols, too,	3372	# don't, removes xs symbols, too,
2555	# and global variables created in xs	3373	# and global variables created in xs
2556	#Symbol::delete_package __PACKAGE__;	3374	#Symbol::delete_package __PACKAGE__;
2557		3375
…		…
2560	warn "reloading cf.pm";	3378	warn "reloading cf.pm";
2561	require cf;	3379	require cf;
2562	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3380	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2563		3381
2564	warn "loading config and database again";	3382	warn "loading config and database again";
2565	cf::cfg_load;	3383	cf::reload_config;
2566		3384
2567	warn "loading extensions";	3385	warn "loading extensions";
2568	cf::load_extensions;	3386	cf::load_extensions;
2569		3387
2570	warn "reattaching attachments to objects/players";	3388	warn "reattaching attachments to objects/players";
…		…
2572	warn "reattaching attachments to maps";	3390	warn "reattaching attachments to maps";
2573	reattach $_ for values %MAP;	3391	reattach $_ for values %MAP;
2574	warn "reattaching attachments to players";	3392	warn "reattaching attachments to players";
2575	reattach $_ for values %PLAYER;	3393	reattach $_ for values %PLAYER;
2576		3394
2577	warn "loading reloadable resources";
2578	reload_resources;
2579
2580	warn "leaving sync_job";	3395	warn "leaving sync_job";
2581		3396
2582	1	3397	1
2583	} or do {	3398	} or do {
2584	warn $@;	3399	warn $@;
…		…
2589	warn "reloaded";	3404	warn "reloaded";
2590	};	3405	};
2591		3406
2592	our $RELOAD_WATCHER; # used only during reload	3407	our $RELOAD_WATCHER; # used only during reload
2593		3408
		3409	sub reload_perl() {
		3410	# doing reload synchronously and two reloads happen back-to-back,
		3411	# coro crashes during coro_state_free->destroy here.
		3412
		3413	$RELOAD_WATCHER ||= Event->timer (
		3414	reentrant => 0,
		3415	after => 0,
		3416	data => WF_AUTOCANCEL,
		3417	cb => sub {
		3418	do_reload_perl;
		3419	undef $RELOAD_WATCHER;
		3420	},
		3421	);
		3422	}
		3423
2594	register_command "reload" => sub {	3424	register_command "reload" => sub {
2595	my ($who, $arg) = @_;	3425	my ($who, $arg) = @_;
2596		3426
2597	if ($who->flag (FLAG_WIZ)) {	3427	if ($who->flag (FLAG_WIZ)) {
2598	$who->message ("reloading server.");	3428	$who->message ("reloading server.");
2599		3429	async { reload_perl };
2600	# doing reload synchronously and two reloads happen back-to-back,
2601	# coro crashes during coro_state_free->destroy here.
2602
2603	$RELOAD_WATCHER ||= Event->timer (
2604	reentrant => 0,
2605	after => 0,
2606	data => WF_AUTOCANCEL,
2607	cb => sub {
2608	reload;
2609	undef $RELOAD_WATCHER;
2610	},
2611	);
2612	}	3430	}
2613	};	3431	};
2614		3432
2615	unshift @INC, $LIBDIR;	3433	unshift @INC, $LIBDIR;
2616		3434
2617	my $bug_warning = 0;	3435	my $bug_warning = 0;
		3436
		3437	our @WAIT_FOR_TICK;
		3438	our @WAIT_FOR_TICK_BEGIN;
		3439
		3440	sub wait_for_tick {
		3441	return unless $TICK_WATCHER->is_active;
		3442	return if $Coro::current == $Coro::main;
		3443
		3444	my $signal = new Coro::Signal;
		3445	push @WAIT_FOR_TICK, $signal;
		3446	$signal->wait;
		3447	}
		3448
		3449	sub wait_for_tick_begin {
		3450	return unless $TICK_WATCHER->is_active;
		3451	return if $Coro::current == $Coro::main;
		3452
		3453	my $signal = new Coro::Signal;
		3454	push @WAIT_FOR_TICK_BEGIN, $signal;
		3455	$signal->wait;
		3456	}
		3457
		3458	our $stat_fh;
		3459	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
2618		3460
2619	$TICK_WATCHER = Event->timer (	3461	$TICK_WATCHER = Event->timer (
2620	reentrant => 0,	3462	reentrant => 0,
2621	parked => 1,	3463	parked => 1,
2622	prio => 0,	3464	prio => 0,
…		…
2627	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3469	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2628	unless ++$bug_warning > 10;	3470	unless ++$bug_warning > 10;
2629	return;	3471	return;
2630	}	3472	}
2631		3473
		3474	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3475
2632	$NOW = Event::time;	3476	$NOW = $tick_start = Event::time;
2633		3477
2634	cf::server_tick; # one server iteration	3478	cf::server_tick; # one server iteration
		3479
2635	$RUNTIME += $TICK;	3480	$RUNTIME += $TICK;
2636	$NEXT_TICK += $TICK;	3481	$NEXT_TICK += $TICK;
2637		3482
2638	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3483	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2639	$NEXT_RUNTIME_WRITE = $NOW + 10;	3484	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2641	write_runtime	3486	write_runtime
2642	or warn "ERROR: unable to write runtime file: $!";	3487	or warn "ERROR: unable to write runtime file: $!";
2643	};	3488	};
2644	}	3489	}
2645		3490
2646	$WAIT_FOR_TICK->broadcast;
2647	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2648
2649	# my $AFTER = Event::time;	3491	# my $AFTER = Event::time;
2650	# warn $AFTER - $NOW;#d#	3492	# warn $AFTER - $NOW;#d#
2651		3493
		3494	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3495	$sig->send;
		3496	}
		3497	while (my $sig = shift @WAIT_FOR_TICK) {
		3498	$sig->send;
		3499	}
		3500
		3501	$NOW = Event::time;
		3502
2652	# if we are delayed by four ticks or more, skip them all	3503	# if we are delayed by four ticks or more, skip them all
2653	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3504	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2654		3505
2655	$TICK_WATCHER->at ($NEXT_TICK);	3506	$TICK_WATCHER->at ($NEXT_TICK);
2656	$TICK_WATCHER->start;	3507	$TICK_WATCHER->start;
		3508
		3509	$LOAD = ($NOW - $tick_start) / $TICK;
		3510	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3511
		3512	_post_tick;
		3513
		3514	# gather some statistics#d#
		3515	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3516	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2657	},	3517	},
2658	);	3518	);
2659		3519
2660	{	3520	{
		3521	BDB::min_parallel 8;
2661	BDB::max_poll_time $TICK * 0.1;	3522	BDB::max_poll_time $TICK * 0.1;
2662	$BDB_POLL_WATCHER = Event->io (	3523	$BDB_POLL_WATCHER = Event->io (
2663	reentrant => 0,	3524	reentrant => 0,
2664	fd => BDB::poll_fileno,	3525	fd => BDB::poll_fileno,
2665	poll => 'r',	3526	poll => 'r',
2666	prio => 0,	3527	prio => 0,
2667	data => WF_AUTOCANCEL,	3528	data => WF_AUTOCANCEL,
2668	cb => \&BDB::poll_cb,	3529	cb => \&BDB::poll_cb,
2669	);	3530	);
2670	BDB::min_parallel 8;
2671		3531
2672	BDB::set_sync_prepare {	3532	BDB::set_sync_prepare {
2673	my $status;	3533	my $status;
2674	my $current = $Coro::current;	3534	my $current = $Coro::current;
2675	(	3535	(
…		…
2689		3549
2690	cf::sync_job {	3550	cf::sync_job {
2691	eval {	3551	eval {
2692	BDB::db_env_open	3552	BDB::db_env_open
2693	$DB_ENV,	3553	$DB_ENV,
2694	$BDB_ENV_DIR,	3554	$BDBDIR,
2695	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3555	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2696	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3556	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2697	0666;	3557	0666;
2698		3558
2699	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3559	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2700		3560
2701	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3561	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3562	| BDB::LOG_AUTOREMOVE, 1);
2702	$DB_ENV->set_lk_detect;	3563	$DB_ENV->set_lk_detect;
2703	};	3564	};
2704		3565
2705	cf::cleanup "db_env_open(db): $@" if $@;	3566	cf::cleanup "db_env_open(db): $@" if $@;
2706	};	3567	};
2707	}	3568	}
		3569
		3570	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3571	after => 11,
		3572	interval => 60,
		3573	hard => 1,
		3574	prio => 0,
		3575	data => WF_AUTOCANCEL,
		3576	cb => sub {
		3577	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3578	},
		3579	);
		3580	$BDB_TRICKLE_WATCHER = Event->timer (
		3581	after => 5,
		3582	interval => 10,
		3583	hard => 1,
		3584	prio => 0,
		3585	data => WF_AUTOCANCEL,
		3586	cb => sub {
		3587	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3588	},
		3589	);
2708	}	3590	}
2709		3591
2710	{	3592	{
2711	IO::AIO::min_parallel 8;	3593	IO::AIO::min_parallel 8;
2712		3594
…		…
2720	prio => 6,	3602	prio => 6,
2721	cb => \&IO::AIO::poll_cb,	3603	cb => \&IO::AIO::poll_cb,
2722	);	3604	);
2723	}	3605	}
2724		3606
		3607	my $_log_backtrace;
		3608
		3609	sub _log_backtrace {
		3610	my ($msg, @addr) = @_;
		3611
		3612	$msg =~ s/\n//;
		3613
		3614	# limit the # of concurrent backtraces
		3615	if ($_log_backtrace < 2) {
		3616	++$_log_backtrace;
		3617	async {
		3618	my @bt = fork_call {
		3619	@addr = map { sprintf "%x", $_ } @addr;
		3620	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3621	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3622	or die "addr2line: $!";
		3623
		3624	my @funcs;
		3625	my @res = <$fh>;
		3626	chomp for @res;
		3627	while (@res) {
		3628	my ($func, $line) = splice @res, 0, 2, ();
		3629	push @funcs, "[$func] $line";
		3630	}
		3631
		3632	@funcs
		3633	};
		3634
		3635	LOG llevInfo, "[ABT] $msg\n";
		3636	LOG llevInfo, "[ABT] $_\n" for @bt;
		3637	--$_log_backtrace;
		3638	};
		3639	} else {
		3640	LOG llevInfo, "[ABT] $msg\n";
		3641	LOG llevInfo, "[ABT] [suppressed]\n";
		3642	}
		3643	}
		3644
		3645	# load additional modules
		3646	use cf::pod;
		3647
2725	END { cf::emergency_save }	3648	END { cf::emergency_save }
2726		3649
2727	1	3650	1
2728		3651

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