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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.250 by root, Wed Apr 18 14:24:10 2007 UTC vs.
Revision 1.373 by root, Sat Sep 15 15:58:06 2007 UTC

…		…
10	use Event;	10	use Event;
11	use Opcode;	11	use Opcode;
12	use Safe;	12	use Safe;
13	use Safe::Hole;	13	use Safe::Hole;
14		14
15	use Coro 3.61 ();	15	use Coro 3.64 ();
16	use Coro::State;	16	use Coro::State;
17	use Coro::Handle;	17	use Coro::Handle;
18	use Coro::Event;	18	use Coro::Event;
19	use Coro::Timer;	19	use Coro::Timer;
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
		24	use Coro::Util ();
24		25
		26	use JSON::XS ();
25	use BDB ();	27	use BDB ();
26	use Data::Dumper;	28	use Data::Dumper;
27	use Digest::MD5;	29	use Digest::MD5;
28	use Fcntl;	30	use Fcntl;
29	use YAML::Syck ();	31	use YAML::Syck ();
30	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
31	use Time::HiRes;	33	use Time::HiRes;
32	use Compress::LZF;	34	use Compress::LZF;
		35	use Digest::MD5 ();
33		36
34	# configure various modules to our taste	37	# configure various modules to our taste
35	#	38	#
36	$Storable::canonical = 1; # reduce rsync transfers	39	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	52	our %COMMAND = ();
50	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
51		54
52	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
56		60
57	our $RELOAD; # number of reloads so far	61	our $RELOAD; # number of reloads so far
58	our @EVENT;	62	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	63
		64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
60		75
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;	77	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;	78	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	80	our $NEXT_TICK;
66	our $NOW;	81	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	82	our $USE_FSYNC = 1; # use fsync to write maps - default off
68		83
69	our $BDB_POLL_WATCHER;	84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	88	our $DB_ENV;
71		89
72	our %CFG;	90	our %CFG;
73		91
74	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	93	our $RUNTIME;
76		94
77	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	97	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		98
83	# used to convert map paths into valid unix filenames by replacing / by ∕	99	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
		105
86	binmode STDOUT;	106	binmode STDOUT;
87	binmode STDERR;	107	binmode STDERR;
88		108
89	# read virtual server time, if available	109	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
91	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
92	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
93	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
94	}	114	}
95		115
96	mkdir cf::localdir;	116	mkdir $_
97	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
98	mkdir cf::localdir . "/" . cf::tmpdir;
99	mkdir cf::localdir . "/" . cf::uniquedir;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		118
103	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
104		120
105	sub cf::map::normalise;	121	sub cf::map::normalise;
106		122
…		…
117	=item $cf::RUNTIME	133	=item $cf::RUNTIME
118		134
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	136	every server tick.
121		137
122	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		141
124	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
126		146
127	=item $cf::NOW	147	=item $cf::NOW
128		148
129	The time of the last (current) server tick.	149	The time of the last (current) server tick.
130		150
131	=item $cf::TICK	151	=item $cf::TICK
132		152
133	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
134		164
135	=item %cf::CFG	165	=item %cf::CFG
136		166
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
138	from wherever your confdir points to.	168	from wherever your confdir points to.
…		…
141		171
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	173	returns directly I<after> the tick processing (and consequently, can only wake one process
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
		181
146	=back	182	=back
147		183
148	=cut	184	=cut
149		185
150	BEGIN {	186	BEGIN {
…		…
152	my $msg = join "", @_;	188	my $msg = join "", @_;
153		189
154	$msg .= "\n"	190	$msg .= "\n"
155	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
156		192
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		194
159	utf8::encode $msg;
160	LOG llevError, $msg;	195	LOG llevError, $msg;
161	};	196	};
162	}	197	}
163		198
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		206
171	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	208	# within the Safe compartment.
173	for my $pkg (qw(	209	for my $pkg (qw(
174	cf::global cf::attachable	210	cf::global cf::attachable
…		…
182	}	218	}
183		219
184	$Event::DIED = sub {	220	$Event::DIED = sub {
185	warn "error in event callback: @_";	221	warn "error in event callback: @_";
186	};	222	};
		223
		224	#############################################################################
187		225
188	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
189		227
190	=over 4	228	=over 4
191		229
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	249	$d
212	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
213	}	251	}
214		252
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
218		254
219	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
220		256
221	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
222		258
223	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
		260
		261	=cut
		262
		263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		264
		265	sub to_json ($) { $json_coder->encode ($_[0]) }
		266	sub from_json ($) { $json_coder->decode ($_[0]) }
224		267
225	=item cf::lock_wait $string	268	=item cf::lock_wait $string
226		269
227	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
228		271
…		…
231	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
232	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
233	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
234	returned.	277	returned.
235		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
236	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
238		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
239	=cut	289	=cut
240		290
241	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
242		293
243	sub lock_wait($) {	294	sub lock_wait($) {
244	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
245		301
246	# wait for lock, if any	302	# wait for lock, if any
247	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;	305	Coro::schedule;
…		…
255		311
256	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
257	lock_wait $key;	313	lock_wait $key;
258		314
259	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
260		317
261	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
262	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
264	}	322	}
		323	}
		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
265	}	329	}
266		330
267	sub freeze_mainloop {	331	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
269		333
…		…
272	};	336	};
273	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
274	$guard	338	$guard
275	}	339	}
276		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	my $signal = new Coro::Signal;
		360
		361	while () {
		362	next_job:
		363	my $avail = cf::till_tick;
		364	if ($avail > 0.01) {
		365	for (0 .. $#SLOT_QUEUE) {
		366	if ($SLOT_QUEUE[$_][0] < $avail) {
		367	my $job = splice @SLOT_QUEUE, $_, 1, ();
		368	$job->[2]->send;
		369	Coro::cede;
		370	goto next_job;
		371	}
		372	}
		373	}
		374
		375	if (@SLOT_QUEUE) {
		376	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		377	push @cf::WAIT_FOR_TICK, $signal;
		378	$signal->wait;
		379	} else {
		380	Coro::schedule;
		381	}
		382	}
		383	};
		384
		385	sub get_slot($;$$) {
		386	my ($time, $pri, $name) = @_;
		387
		388	$time = $TICK * .6 if $time > $TICK * .6;
		389	my $sig = new Coro::Signal;
		390
		391	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		392	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		393	$SLOT_QUEUE->ready;
		394	$sig->wait;
		395	}
		396
277	=item cf::async { BLOCK }	397	=item cf::async { BLOCK }
278		398
279	Currently the same as Coro::async_pool, meaning you cannot use	399	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	400	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.	401	thing you are allowed to do is call C<prio> on it.
…		…
284		404
285	BEGIN { *async = \&Coro::async_pool }	405	BEGIN { *async = \&Coro::async_pool }
286		406
287	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
288		408
289	The design of crossfire+ requires that the main coro ($Coro::main) is	409	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	410	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.	411	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		412	acceptable.
292		413
293	If it must be done, put the blocking parts into C<sync_job>. This will run	414	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	415	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	416	server will be frozen during this time, so the block should either finish
296	fast or be very important.	417	fast or be very important.
…		…
299		420
300	sub sync_job(&) {	421	sub sync_job(&) {
301	my ($job) = @_;	422	my ($job) = @_;
302		423
303	if ($Coro::current == $Coro::main) {	424	if ($Coro::current == $Coro::main) {
		425	my $time = Event::time;
		426
304	# this is the main coro, too bad, we have to block	427	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	428	# till the operation succeeds, freezing the server :/
306		429
307	# TODO: use suspend/resume instead	430	# TODO: use suspend/resume instead
308	# (but this is cancel-safe)	431	# (but this is cancel-safe)
…		…
319		442
320	while ($busy) {	443	while ($busy) {
321	Coro::cede or Event::one_event;	444	Coro::cede or Event::one_event;
322	}	445	}
323		446
		447	$time = Event::time - $time;
		448
		449	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		450	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		451
		452	$tick_start += $time; # do not account sync jobs to server load
		453
324	wantarray ? @res : $res[0]	454	wantarray ? @res : $res[0]
325	} else {	455	} else {
326	# we are in another coroutine, how wonderful, everything just works	456	# we are in another coroutine, how wonderful, everything just works
327		457
328	$job->()	458	$job->()
…		…
347	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
348		478
349	$coro	479	$coro
350	}	480	}
351		481
352	sub write_runtime {	482	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		483
355	my $runtime = cf::localdir . "/runtime";	484	Executes the given code block with the given arguments in a seperate
		485	process, returning the results. Everything must be serialisable with
		486	Coro::Storable. May, of course, block. Note that the executed sub may
		487	never block itself or use any form of Event handling.
356		488
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	=cut
358	or return;
359		490
360	my $value = $cf::RUNTIME + 90 + 10;	491	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	492	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		493
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	494	# we seemingly have to make a local copy of the whole thing,
365	and return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
366		497
367	# always fsync - this file is important	498	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	499	reset_signals;
369	and return;	500	&$cb
		501	}, @args;
370		502
371	close $fh	503	wantarray ? @res : $res[-1]
372	or return;	504	}
373		505
374	aio_rename "$runtime~", $runtime	506	=item $value = cf::db_get $family => $key
375	and return;
376		507
		508	Returns a single value from the environment database.
		509
		510	=item cf::db_put $family => $key => $value
		511
		512	Stores the given C<$value> in the family. It can currently store binary
		513	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		514
		515	=item $db = cf::db_table "name"
		516
		517	Create and/or open a new database table. The string must not be "db" and must be unique
		518	within each server.
		519
		520	=cut
		521
		522	sub db_table($) {
		523	my ($name) = @_;
		524	my $db = BDB::db_create $DB_ENV;
		525
		526	eval {
		527	$db->set_flags (BDB::CHKSUM);
		528
		529	utf8::encode $name;
		530	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		531	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		532	cf::cleanup "db_open(db): $!" if $!;
		533	};
		534	cf::cleanup "db_open(db): $@" if $@;
		535
		536	$db
		537	}
		538
		539	our $DB;
		540
		541	sub db_init {
		542	cf::sync_job {
		543	$DB ||= db_table "db";
		544	};
		545	}
		546
		547	sub db_get($$) {
		548	my $key = "$_[0]/$_[1]";
		549
		550	cf::sync_job {
		551	BDB::db_get $DB, undef, $key, my $data;
		552
		553	$! ? ()
		554	: $data
377	1	555	}
		556	}
		557
		558	sub db_put($$$) {
		559	BDB::dbreq_pri 4;
		560	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		561	}
		562
		563	=item cf::cache $id => [$paths...], $processversion => $process
		564
		565	Generic caching function that returns the value of the resource $id,
		566	caching and regenerating as required.
		567
		568	This function can block.
		569
		570	=cut
		571
		572	sub cache {
		573	my ($id, $src, $processversion, $process) = @_;
		574
		575	my $meta =
		576	join "\x00",
		577	$processversion,
		578	map {
		579	aio_stat $_
		580	and Carp::croak "$_: $!";
		581
		582	($_, (stat _)[7,9])
		583	} @$src;
		584
		585	my $dbmeta = db_get cache => "$id/meta";
		586	if ($dbmeta ne $meta) {
		587	# changed, we may need to process
		588
		589	my @data;
		590	my $md5;
		591
		592	for (0 .. $#$src) {
		593	0 <= aio_load $src->[$_], $data[$_]
		594	or Carp::croak "$src->[$_]: $!";
		595	}
		596
		597	# if processing is expensive, check
		598	# checksum first
		599	if (1) {
		600	$md5 =
		601	join "\x00",
		602	$processversion,
		603	map {
		604	cf::cede_to_tick;
		605	($src->[$_], Digest::MD5::md5_hex $data[$_])
		606	} 0.. $#$src;
		607
		608
		609	my $dbmd5 = db_get cache => "$id/md5";
		610	if ($dbmd5 eq $md5) {
		611	db_put cache => "$id/meta", $meta;
		612
		613	return db_get cache => "$id/data";
		614	}
		615	}
		616
		617	my $t1 = Time::HiRes::time;
		618	my $data = $process->(\@data);
		619	my $t2 = Time::HiRes::time;
		620
		621	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		622
		623	db_put cache => "$id/data", $data;
		624	db_put cache => "$id/md5" , $md5;
		625	db_put cache => "$id/meta", $meta;
		626
		627	return $data;
		628	}
		629
		630	db_get cache => "$id/data"
378	}	631	}
379		632
380	=item cf::datalog type => key => value, ...	633	=item cf::datalog type => key => value, ...
381		634
382	Log a datalog packet of the given type with the given key-value pairs.	635	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")	653	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
402		655
403	In the following description, CLASS can be any of C<global>, C<object>	656	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	657	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	658	Crossfire TRT).
406		659
407	=over 4	660	=over 4
408		661
409	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
410		663
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	826	$registry = $CB_TYPE[$object_type] ||= [];
574		827
575	} elsif ($type eq "subtype") {	828	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	829	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	830	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	831	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		832
580	} elsif ($type eq "package") {	833	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	834	my $pkg = shift @arg;
582		835
583	while (my ($name, $id) = each %cb_id) {	836	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	865	_attach $registry, $klass, @attach;
613	}	866	}
614		867
615	$obj->{$name} = \%arg;	868	$obj->{$name} = \%arg;
616	} else {	869	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	870	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	871	}
619		872
620	$obj->{_attachment}{$name} = undef;	873	$obj->{_attachment}{$name} = undef;
621	}	874	}
622		875
…		…
624	if (ref $_[0]) {	877	if (ref $_[0]) {
625	_object_attach @_;	878	_object_attach @_;
626	} else {	879	} else {
627	_attach shift->_attach_registry, @_;	880	_attach shift->_attach_registry, @_;
628	}	881	}
		882	_recalc_want;
629	};	883	};
630		884
631	# all those should be optimised	885	# all those should be optimised
632	sub cf::attachable::detach {	886	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	887	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	890	delete $obj->{_attachment}{$name};
637	reattach ($obj);	891	reattach ($obj);
638	} else {	892	} else {
639	Carp::croak "cannot, currently, detach class attachments";	893	Carp::croak "cannot, currently, detach class attachments";
640	}	894	}
		895	_recalc_want;
641	};	896	};
642		897
643	sub cf::attachable::attached {	898	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	899	my ($obj, $name) = @_;
645		900
…		…
660	";	915	";
661	die if $@;	916	die if $@;
662	}	917	}
663		918
664	our $override;	919	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	920	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		921
667	sub override {	922	sub override {
668	$override = 1;	923	$override = 1;
669	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
670	}	925	}
671		926
672	sub do_invoke {	927	sub do_invoke {
673	my $event = shift;	928	my $event = shift;
674	my $callbacks = shift;	929	my $callbacks = shift;
675		930
676	@invoke_results = ();	931	@INVOKE_RESULTS = ();
677		932
678	local $override;	933	local $override;
679		934
680	for (@$callbacks) {	935	for (@$callbacks) {
681	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
698		953
699	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
700		955
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	956	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	957	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		959
705	=back	960	=back
706		961
707	=cut	962	=cut
708		963
709	#############################################################################	964	#############################################################################
710	# object support	965	# object support
		966	#
		967
		968	sub _can_merge {
		969	my ($ob1, $ob2) = @_;
		970
		971	local $Storable::canonical = 1;
		972	my $fob1 = Storable::freeze $ob1;
		973	my $fob2 = Storable::freeze $ob2;
		974
		975	$fob1 eq $fob2
		976	}
711		977
712	sub reattach {	978	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	980	my ($obj) = @_;
715		981
…		…
762	sub object_freezer_save {	1028	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
764		1030
765	sync_job {	1031	sync_job {
766	if (length $$rdata) {	1032	if (length $$rdata) {
		1033	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1034	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1035	$decname, length $$rdata, scalar @$objs;
769		1036
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1037	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1038	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1039	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1040	aio_fsync $fh if $cf::USE_FSYNC;
…		…
792	}	1059	}
793	} else {	1060	} else {
794	aio_unlink $filename;	1061	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1062	aio_unlink "$filename.pst";
796	}	1063	}
797	}	1064	};
798	}	1065	}
799		1066
800	sub object_freezer_as_string {	1067	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1068	my ($rdata, $objs) = @_;
802		1069
…		…
814	or return;	1081	or return;
815		1082
816	unless (aio_stat "$filename.pst") {	1083	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1084	(aio_load "$filename.pst", $av) >= 0
818	or return;	1085	or return;
		1086
819	$av = eval { (Storable::thaw $av)->{objs} };	1087	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1088	}
821		1089
		1090	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1091	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1092	$decname, length $data, scalar @{$av || []};
		1093
824	return ($data, $av);	1094	($data, $av)
825	}	1095	}
		1096
		1097	=head2 COMMAND CALLBACKS
		1098
		1099	=over 4
		1100
		1101	=cut
826		1102
827	#############################################################################	1103	#############################################################################
828	# command handling &c	1104	# command handling &c
829		1105
830	=item cf::register_command $name => \&callback($ob,$args);	1106	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1119	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1120	}
845		1121
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1122	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1123
848	Register a callbackf ro execution when the client sends an extcmd packet.	1124	Register a callback for execution when the client sends an (synchronous)
		1125	extcmd packet. Ext commands will be processed in the order they are
		1126	received by the server, like other user commands. The first argument is
		1127	the logged-in player. Ext commands can only be processed after a player
		1128	has logged in successfully.
849		1129
850	If the callback returns something, it is sent back as if reply was being	1130	If the callback returns something, it is sent back as if reply was being
851	called.	1131	called.
852		1132
		1133	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1134
		1135	Register a callback for execution when the client sends an (asynchronous)
		1136	exticmd packet. Exti commands are processed by the server as soon as they
		1137	are received, i.e. out of order w.r.t. other commands. The first argument
		1138	is a client socket. Exti commands can be received anytime, even before
		1139	log-in.
		1140
		1141	If the callback returns something, it is sent back as if reply was being
		1142	called.
		1143
853	=cut	1144	=cut
854		1145
855	sub register_extcmd {	1146	sub register_extcmd {
856	my ($name, $cb) = @_;	1147	my ($name, $cb) = @_;
857		1148
858	$EXTCMD{$name} = $cb;	1149	$EXTCMD{$name} = $cb;
		1150	}
		1151
		1152	sub register_exticmd {
		1153	my ($name, $cb) = @_;
		1154
		1155	$EXTICMD{$name} = $cb;
859	}	1156	}
860		1157
861	cf::player->attach (	1158	cf::player->attach (
862	on_command => sub {	1159	on_command => sub {
863	my ($pl, $name, $params) = @_;	1160	my ($pl, $name, $params) = @_;
…		…
872	cf::override;	1169	cf::override;
873	},	1170	},
874	on_extcmd => sub {	1171	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1172	my ($pl, $buf) = @_;
876		1173
877	my $msg = eval { from_json $buf };	1174	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1175
879	if (ref $msg) {	1176	if (ref $msg) {
		1177	my ($type, $reply, @payload) =
		1178	"ARRAY" eq ref $msg
		1179	? @$msg
		1180	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1181
		1182	my @reply;
		1183
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1184	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1185	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1186	}
		1187
		1188	$pl->ext_reply ($reply, @reply)
		1189	if $reply;
		1190
885	} else {	1191	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1192	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1193	}
888		1194
889	cf::override;	1195	cf::override;
890	},	1196	},
891	);	1197	);
892		1198
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 {	1199	sub load_extensions {
		1200	cf::sync_job {
		1201	my %todo;
		1202
928	for my $ext (<$LIBDIR/*.ext>) {	1203	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1204	next unless -r $path;
930	eval {	1205
931	load_extension $ext;	1206	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1207	my $base = $1;
		1208	my $pkg = $1;
		1209	$pkg =~ s/[^[:word:]]/_/g;
		1210	$pkg = "ext::$pkg";
		1211
		1212	open my $fh, "<:utf8", $path
		1213	or die "$path: $!";
		1214
		1215	my $source = do { local $/; <$fh> };
		1216
		1217	my %ext = (
		1218	path => $path,
		1219	base => $base,
		1220	pkg => $pkg,
		1221	);
		1222
		1223	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1224	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1225
		1226	$ext{source} =
		1227	"package $pkg; use strict; use utf8;\n"
		1228	. "#line 1 \"$path\"\n{\n"
		1229	. $source
		1230	. "\n};\n1";
		1231
		1232	$todo{$base} = \%ext;
		1233	}
		1234
		1235	my %done;
		1236	while (%todo) {
		1237	my $progress;
		1238
		1239	while (my ($k, $v) = each %todo) {
		1240	for (split /,\s*/, $v->{meta}{depends}) {
		1241	goto skip
		1242	unless exists $done{$_};
		1243	}
		1244
		1245	warn "... loading '$k' into '$v->{pkg}'\n";
		1246
		1247	unless (eval $v->{source}) {
		1248	my $msg = $@ ? "$v->{path}: $@\n"
		1249	: "$v->{base}: extension inactive.\n";
		1250
		1251	if (exists $v->{meta}{mandatory}) {
		1252	warn $msg;
		1253	warn "mandatory extension failed to load, exiting.\n";
		1254	exit 1;
		1255	}
		1256
		1257	warn $msg;
		1258	}
		1259
		1260	$done{$k} = delete $todo{$k};
		1261	push @EXTS, $v->{pkg};
		1262	$progress = 1;
932	1	1263	}
933	} or warn "$ext not loaded: $@";	1264
		1265	skip:
		1266	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1267	unless $progress;
		1268	}
934	}	1269	};
935	}	1270	}
936		1271
937	#############################################################################	1272	#############################################################################
938		1273
		1274	=back
		1275
939	=head2 CORE EXTENSIONS	1276	=head2 CORE EXTENSIONS
940		1277
941	Functions and methods that extend core crossfire objects.	1278	Functions and methods that extend core crossfire objects.
942		1279
943	=cut	1280	=cut
…		…
948		1285
949	=head3 cf::player	1286	=head3 cf::player
950		1287
951	=over 4	1288	=over 4
952		1289
		1290	=item cf::player::num_playing
		1291
		1292	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1293
		1294	=cut
		1295
		1296	sub num_playing {
		1297	scalar grep
		1298	$_->ob->map
		1299	&& !$_->hidden
		1300	&& !$_->ob->flag (cf::FLAG_WIZ),
		1301	cf::player::list
		1302	}
		1303
953	=item cf::player::find $login	1304	=item cf::player::find $login
954		1305
955	Returns the given player object, loading it if necessary (might block).	1306	Returns the given player object, loading it if necessary (might block).
956		1307
957	=cut	1308	=cut
958		1309
959	sub playerdir($) {	1310	sub playerdir($) {
960	cf::localdir	1311	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1312	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1313	}
966		1314
967	sub path($) {	1315	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1316	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1343	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1344	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1345	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1346	aio_unlink +(playerdir $login) . "/$login.pl";
999		1347
1000	my $pl = load_pl path $login	1348	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1349	or return;
		1350
		1351	my $pl = cf::player::load_pl $f
		1352	or return;
		1353	local $cf::PLAYER_LOADING{$login} = $pl;
		1354	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1355	$cf::PLAYER{$login} = $pl
1003	}	1356	}
1004	}	1357	}
1005	}	1358	}
1006		1359
…		…
1016		1369
1017	aio_mkdir playerdir $pl, 0770;	1370	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1371	$pl->{last_save} = $cf::RUNTIME;
1019		1372
1020	$pl->save_pl ($path);	1373	$pl->save_pl ($path);
1021	Coro::cede;	1374	cf::cede_to_tick;
1022	}	1375	}
1023		1376
1024	sub new($) {	1377	sub new($) {
1025	my ($login) = @_;	1378	my ($login) = @_;
1026		1379
…		…
1030	$self->{deny_save} = 1;	1383	$self->{deny_save} = 1;
1031		1384
1032	$cf::PLAYER{$login} = $self;	1385	$cf::PLAYER{$login} = $self;
1033		1386
1034	$self	1387	$self
		1388	}
		1389
		1390	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1391
		1392	=cut
		1393
		1394	sub send_msg {
		1395	my $ns = shift->ns
		1396	or return;
		1397	$ns->send_msg (@_);
1035	}	1398	}
1036		1399
1037	=item $pl->quit_character	1400	=item $pl->quit_character
1038		1401
1039	Nukes the player without looking back. If logged in, the connection will	1402	Nukes the player without looking back. If logged in, the connection will
…		…
1088	while and may block, so not sync_job-capable, ever.	1451	while and may block, so not sync_job-capable, ever.
1089		1452
1090	=cut	1453	=cut
1091		1454
1092	sub list_logins {	1455	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1456	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1457	or return [];
1095		1458
1096	my @logins;	1459	my @logins;
1097		1460
1098	for my $login (@$dirs) {	1461	for my $login (@$dirs) {
		1462	my $path = path $login;
		1463
		1464	# a .pst is a dead give-away for a valid player
		1465	unless (-e "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1466	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1467	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1468	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1469	}
1102		1470
1103	utf8::decode $login;	1471	utf8::decode $login;
1104	push @logins, $login;	1472	push @logins, $login;
1105	}	1473	}
1106		1474
…		…
1133	}	1501	}
1134		1502
1135	\@paths	1503	\@paths
1136	}	1504	}
1137		1505
		1506	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1507
		1508	Expand crossfire pod fragments into protocol xml.
		1509
		1510	=cut
		1511
		1512	sub expand_cfpod {
		1513	((my $self), (local $_)) = @_;
		1514
		1515	# escape & and <
		1516	s/&/&amp;/g;
		1517	s/(?<![BIUGHT])</&lt;/g;
		1518
		1519	# this is buggy, it needs to properly take care of nested <'s
		1520
		1521	1 while
		1522	# replace B<>, I<>, U<> etc.
		1523	s/B<([^\>]*)>/<b>$1<\/b>/
		1524	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1525	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1526	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1527	# replace G<male|female> tags
		1528	|| s{G<([^>|]*)\|([^>]*)>}{
		1529	$self->gender ? $2 : $1
		1530	}ge
		1531	# replace H<hint text>
		1532	|| s{H<([^\>]*)>}
		1533	{
		1534	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1535	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1536	"")
		1537	[$self->{hintmode}]
		1538	}ge;
		1539
		1540	# create single paragraphs (very hackish)
		1541	s/(?<=\S)\n(?=\w)/ /g;
		1542
		1543	# compress some whitespace
		1544	s/\s+\n/\n/g; # ws line-ends
		1545	s/\n\n+/\n/g; # double lines
		1546	s/^\n+//; # beginning lines
		1547	s/\n+$//; # ending lines
		1548
		1549	$_
		1550	}
		1551
		1552	sub hintmode {
		1553	$_[0]{hintmode} = $_[1] if @_ > 1;
		1554	$_[0]{hintmode}
		1555	}
		1556
1138	=item $player->ext_reply ($msgid, %msg)	1557	=item $player->ext_reply ($msgid, @msg)
1139		1558
1140	Sends an ext reply to the player.	1559	Sends an ext reply to the player.
1141		1560
1142	=cut	1561	=cut
1143		1562
1144	sub ext_reply($$%) {	1563	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1564	my ($self, $id, @msg) = @_;
1146		1565
1147	$msg{msgid} = $id;	1566	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1567	}
1151		1568
1152	=item $player->ext_event ($type, %msg)	1569	=item $player->ext_msg ($type, @msg)
1153		1570
1154	Sends an ext event to the client.	1571	Sends an ext event to the client.
1155		1572
1156	=cut	1573	=cut
1157		1574
1158	sub ext_event($$%) {	1575	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1576	my ($self, $type, @msg) = @_;
1160		1577
1161	$self->ns->ext_event ($type, %msg);	1578	$self->ns->ext_msg ($type, @msg);
1162	}	1579	}
1163		1580
1164	=head3 cf::region	1581	=head3 cf::region
1165		1582
1166	=over 4	1583	=over 4
…		…
1169		1586
1170	package cf::region;	1587	package cf::region;
1171		1588
1172	=item cf::region::find_by_path $path	1589	=item cf::region::find_by_path $path
1173		1590
1174	Tries to decuce the probable region for a map knowing only its path.	1591	Tries to decuce the likely region for a map knowing only its path.
1175		1592
1176	=cut	1593	=cut
1177		1594
1178	sub find_by_path($) {	1595	sub find_by_path($) {
1179	my ($path) = @_;	1596	my ($path) = @_;
1180		1597
1181	my ($match, $specificity);	1598	my ($match, $specificity);
1182		1599
1183	for my $region (list) {	1600	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1601	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1602	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1603	if $region->specificity > $specificity;
1187	}	1604	}
1188	}	1605	}
1189		1606
…		…
1253	my ($self, $merge) = @_;	1670	my ($self, $merge) = @_;
1254		1671
1255	# we have to keep some variables in memory intact	1672	# we have to keep some variables in memory intact
1256	local $self->{path};	1673	local $self->{path};
1257	local $self->{load_path};	1674	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1675
1261	$self->SUPER::thawer_merge ($merge);	1676	$self->SUPER::thawer_merge ($merge);
1262	}	1677	}
1263		1678
1264	sub normalise {	1679	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1726	$self->init; # pass $1 etc.
1312	return $self;	1727	return $self;
1313	}	1728	}
1314	}	1729	}
1315		1730
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1731	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1732	()
1318	}	1733	}
1319		1734
1320	sub init {	1735	sub init {
1321	my ($self) = @_;	1736	my ($self) = @_;
…		…
1336		1751
1337	# the original (read-only) location	1752	# the original (read-only) location
1338	sub load_path {	1753	sub load_path {
1339	my ($self) = @_;	1754	my ($self) = @_;
1340		1755
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1756	"$MAPDIR/$self->{path}.map"
1342	}	1757	}
1343		1758
1344	# the temporary/swap location	1759	# the temporary/swap location
1345	sub save_path {	1760	sub save_path {
1346	my ($self) = @_;	1761	my ($self) = @_;
1347		1762
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1763	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1764	"$TMPDIR/$path.map"
1350	}	1765	}
1351		1766
1352	# the unique path, undef == no special unique path	1767	# the unique path, undef == no special unique path
1353	sub uniq_path {	1768	sub uniq_path {
1354	my ($self) = @_;	1769	my ($self) = @_;
1355		1770
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1771	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1772	"$UNIQUEDIR/$path"
1358	}	1773	}
1359		1774
1360	# and all this just because we cannot iterate over	1775	# and all this just because we cannot iterate over
1361	# all maps in C++...	1776	# all maps in C++...
1362	sub change_all_map_light {	1777	sub change_all_map_light {
…		…
1364		1779
1365	$_->change_map_light ($change)	1780	$_->change_map_light ($change)
1366	for grep $_->outdoor, values %cf::MAP;	1781	for grep $_->outdoor, values %cf::MAP;
1367	}	1782	}
1368		1783
		1784	sub decay_objects {
		1785	my ($self) = @_;
		1786
		1787	return if $self->{deny_reset};
		1788
		1789	$self->do_decay_objects;
		1790	}
		1791
1369	sub unlink_save {	1792	sub unlink_save {
1370	my ($self) = @_;	1793	my ($self) = @_;
1371		1794
1372	utf8::encode (my $save = $self->save_path);	1795	utf8::encode (my $save = $self->save_path);
1373	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1796	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1376		1799
1377	sub load_header_from($) {	1800	sub load_header_from($) {
1378	my ($self, $path) = @_;	1801	my ($self, $path) = @_;
1379		1802
1380	utf8::encode $path;	1803	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1804	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1805	or return;
		1806
		1807	$self->_load_header ($f)
		1808	or return;
		1809
		1810	local $MAP_LOADING{$self->{path}} = $self;
		1811	$f->resolve_delayed_derefs;
1386		1812
1387	$self->{load_path} = $path;	1813	$self->{load_path} = $path;
1388		1814
1389	1	1815	1
1390	}	1816	}
…		…
1429	$self->load_header_orig	1855	$self->load_header_orig
1430	or return;	1856	or return;
1431	$self->prepare_orig;	1857	$self->prepare_orig;
1432	}	1858	}
1433		1859
		1860	$self->{deny_reset} = 1
		1861	if $self->no_reset;
		1862
1434	$self->default_region (cf::region::find_by_path $self->{path})	1863	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1864	unless $self->default_region;
1436		1865
1437	1	1866	1
1438	}	1867	}
…		…
1441	sub find {	1870	sub find {
1442	my ($path, $origin) = @_;	1871	my ($path, $origin) = @_;
1443		1872
1444	$path = normalise $path, $origin && $origin->path;	1873	$path = normalise $path, $origin && $origin->path;
1445		1874
		1875	cf::lock_wait "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1876	cf::lock_wait "map_find:$path";
1447		1877
1448	$cf::MAP{$path} || do {	1878	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";	1879	my $guard1 = cf::lock_acquire "map_find:$path";
		1880	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1881
1450	my $map = new_from_path cf::map $path	1882	my $map = new_from_path cf::map $path
1451	or return;	1883	or return;
1452		1884
1453	$map->{last_save} = $cf::RUNTIME;	1885	$map->{last_save} = $cf::RUNTIME;
1454		1886
1455	$map->load_header	1887	$map->load_header
1456	or return;	1888	or return;
1457		1889
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1890	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1891	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1892	#$cf::WAIT_FOR_TICK->wait;
		1893	undef $guard1;
		1894	undef $guard2;
1461	$map->reset;	1895	$map->reset;
1462	undef $guard;
1463	return find $path;	1896	return find $path;
1464	}	1897	}
1465		1898
1466	$cf::MAP{$path} = $map	1899	$cf::MAP{$path} = $map
1467	}	1900	}
…		…
1474	my ($self) = @_;	1907	my ($self) = @_;
1475		1908
1476	local $self->{deny_reset} = 1; # loading can take a long time	1909	local $self->{deny_reset} = 1; # loading can take a long time
1477		1910
1478	my $path = $self->{path};	1911	my $path = $self->{path};
		1912
		1913	{
1479	my $guard = cf::lock_acquire "map_load:$path";	1914	my $guard = cf::lock_acquire "map_data:$path";
1480		1915
		1916	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	1917	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		1918
1483	$self->in_memory (cf::MAP_LOADING);	1919	$self->in_memory (cf::MAP_LOADING);
1484		1920
1485	$self->alloc;	1921	$self->alloc;
1486		1922
1487	$self->pre_load;	1923	$self->pre_load;
1488	Coro::cede;	1924	cf::cede_to_tick;
1489		1925
1490	$self->_load_objects ($self->{load_path}, 1)	1926	my $f = new_from_file cf::object::thawer $self->{load_path};
		1927	$f->skip_block;
		1928	$self->_load_objects ($f)
1491	or return;	1929	or return;
1492		1930
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1931	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1494	if delete $self->{load_original};	1932	if delete $self->{load_original};
1495		1933
1496	if (my $uniq = $self->uniq_path) {	1934	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	1935	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	1936	unless (aio_stat $uniq) {
		1937	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	1938	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	1939	$self->_load_objects ($f);
		1940	$f->resolve_delayed_derefs;
		1941	}
1501	}	1942	}
1502	}	1943	}
1503		1944
1504	Coro::cede;	1945	$f->resolve_delayed_derefs;
		1946
		1947	cf::cede_to_tick;
1505	# now do the right thing for maps	1948	# now do the right thing for maps
1506	$self->link_multipart_objects;	1949	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	1950	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	1951	unless $self->difficulty;
1517	Coro::cede;	1952	cf::cede_to_tick;
		1953
		1954	unless ($self->{deny_activate}) {
		1955	$self->decay_objects;
		1956	$self->fix_auto_apply;
		1957	$self->update_buttons;
		1958	cf::cede_to_tick;
		1959	$self->set_darkness_map;
		1960	cf::cede_to_tick;
1518	$self->activate;	1961	$self->activate;
1519	Coro::cede;	1962	}
		1963
		1964	$self->{last_save} = $cf::RUNTIME;
		1965	$self->last_access ($cf::RUNTIME);
		1966
		1967	$self->in_memory (cf::MAP_IN_MEMORY);
1520	}	1968	}
1521		1969
1522	$self->post_load;	1970	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	1971	}
1527		1972
1528	sub customise_for {	1973	sub customise_for {
1529	my ($self, $ob) = @_;	1974	my ($self, $ob) = @_;
1530		1975
1531	return find "~" . $ob->name . "/" . $self->{path}	1976	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	1977	if $self->per_player;
1533		1978
		1979	# return find "?party/" . $ob->name . "/" . $self->{path}
		1980	# if $self->per_party;
		1981
1534	$self	1982	$self
1535	}	1983	}
1536		1984
1537	# find and load all maps in the 3x3 area around a map	1985	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	1986	sub load_neighbours {
1539	my ($map) = @_;	1987	my ($map) = @_;
1540		1988
1541	my @diag; # diagonal neighbours	1989	my @neigh; # diagonal neighbours
1542		1990
1543	for (0 .. 3) {	1991	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	1992	my $neigh = $map->tile_path ($_)
1545	or next;	1993	or next;
1546	$neigh = find $neigh, $map	1994	$neigh = find $neigh, $map
1547	or next;	1995	or next;
1548	$neigh->load;	1996	$neigh->load;
1549		1997
		1998	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1999	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2000	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2001	}
1553		2002
1554	for (@diag) {	2003	for (grep defined $_->[0], @neigh) {
		2004	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2005	my $neigh = find $path, $origin
1556	or next;	2006	or next;
1557	$neigh->load;	2007	$neigh->load;
1558	}	2008	}
1559	}	2009	}
1560		2010
…		…
1565	}	2015	}
1566		2016
1567	sub do_load_sync {	2017	sub do_load_sync {
1568	my ($map) = @_;	2018	my ($map) = @_;
1569		2019
		2020	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2021	if $Coro::current == $Coro::main;
		2022
1570	cf::sync_job { $map->load };	2023	cf::sync_job { $map->load };
1571	}	2024	}
1572		2025
1573	our %MAP_PREFETCH;	2026	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2027	our $MAP_PREFETCHER = undef;
1575		2028
1576	sub find_async {	2029	sub find_async {
1577	my ($path, $origin) = @_;	2030	my ($path, $origin, $load) = @_;
1578		2031
1579	$path = normalise $path, $origin && $origin->{path};	2032	$path = normalise $path, $origin && $origin->{path};
1580		2033
1581	if (my $map = $cf::MAP{$path}) {	2034	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2035	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1583	}	2036	}
1584		2037
1585	undef $MAP_PREFETCH{$path};	2038	$MAP_PREFETCH{$path} |= $load;
		2039
1586	$MAP_PREFETCHER ||= cf::async {	2040	$MAP_PREFETCHER ||= cf::async {
1587	while (%MAP_PREFETCH) {	2041	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2042	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2043	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2044	$map->load if $v;
		2045	}
1592		2046
1593	delete $MAP_PREFETCH{$path};	2047	delete $MAP_PREFETCH{$k};
1594	}	2048	}
1595	}	2049	}
1596	undef $MAP_PREFETCHER;	2050	undef $MAP_PREFETCHER;
1597	};	2051	};
1598	$MAP_PREFETCHER->prio (6);	2052	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2055	}
1602		2056
1603	sub save {	2057	sub save {
1604	my ($self) = @_;	2058	my ($self) = @_;
1605		2059
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2061
1608	$self->{last_save} = $cf::RUNTIME;	2062	$self->{last_save} = $cf::RUNTIME;
1609		2063
1610	return unless $self->dirty;	2064	return unless $self->dirty;
1611		2065
…		…
1634	my ($self) = @_;	2088	my ($self) = @_;
1635		2089
1636	# save first because save cedes	2090	# save first because save cedes
1637	$self->save;	2091	$self->save;
1638		2092
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2093	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2094
1641	return if $self->players;	2095	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2096	return if $self->in_memory != cf::MAP_IN_MEMORY;
1643	return if $self->{deny_save};	2097	return if $self->{deny_save};
1644		2098
		2099	$self->in_memory (cf::MAP_SWAPPED);
		2100
		2101	$self->deactivate;
		2102	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2103	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2104	}
1648		2105
1649	sub reset_at {	2106	sub reset_at {
1650	my ($self) = @_;	2107	my ($self) = @_;
1651		2108
1652	# TODO: safety, remove and allow resettable per-player maps	2109	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2110	return 1e99 if $self->{deny_reset};
1655		2111
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2112	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2113	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2114
…		…
1669	my ($self) = @_;	2125	my ($self) = @_;
1670		2126
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2127	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2128
1673	return if $self->players;	2129	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2130
1676	warn "resetting map ", $self->path;#d#	2131	warn "resetting map ", $self->path;
1677		2132
1678	$self->in_memory (cf::MAP_SWAPPED);	2133	$self->in_memory (cf::MAP_SWAPPED);
1679		2134
1680	# need to save uniques path	2135	# need to save uniques path
1681	unless ($self->{deny_save}) {	2136	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2140	if $uniq;
1686	}	2141	}
1687		2142
1688	delete $cf::MAP{$self->path};	2143	delete $cf::MAP{$self->path};
1689		2144
		2145	$self->deactivate;
		2146	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2147	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2148
1694	$self->unlink_save;	2149	$self->unlink_save;
1695	$self->destroy;	2150	$self->destroy;
1696	}	2151	}
1697		2152
1698	my $nuke_counter = "aaaa";	2153	my $nuke_counter = "aaaa";
1699		2154
1700	sub nuke {	2155	sub nuke {
1701	my ($self) = @_;	2156	my ($self) = @_;
1702		2157
		2158	{
		2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2160
1703	delete $cf::MAP{$self->path};	2161	delete $cf::MAP{$self->path};
1704		2162
1705	$self->unlink_save;	2163	$self->unlink_save;
1706		2164
1707	bless $self, "cf::map";	2165	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2166	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2167	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2168	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2169	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2170
1713	$cf::MAP{$self->path} = $self;	2171	$cf::MAP{$self->path} = $self;
		2172	}
1714		2173
1715	$self->reset; # polite request, might not happen	2174	$self->reset; # polite request, might not happen
		2175	}
		2176
		2177	=item $maps = cf::map::tmp_maps
		2178
		2179	Returns an arrayref with all map paths of currently instantiated and saved
		2180	maps. May block.
		2181
		2182	=cut
		2183
		2184	sub tmp_maps() {
		2185	[
		2186	map {
		2187	utf8::decode $_;
		2188	/\.map$/
		2189	? normalise $_
		2190	: ()
		2191	} @{ aio_readdir $TMPDIR or [] }
		2192	]
		2193	}
		2194
		2195	=item $maps = cf::map::random_maps
		2196
		2197	Returns an arrayref with all map paths of currently instantiated and saved
		2198	random maps. May block.
		2199
		2200	=cut
		2201
		2202	sub random_maps() {
		2203	[
		2204	map {
		2205	utf8::decode $_;
		2206	/\.map$/
		2207	? normalise "?random/$_"
		2208	: ()
		2209	} @{ aio_readdir $RANDOMDIR or [] }
		2210	]
1716	}	2211	}
1717		2212
1718	=item cf::map::unique_maps	2213	=item cf::map::unique_maps
1719		2214
1720	Returns an arrayref of paths of all shared maps that have	2215	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2216	instantiated unique items. May block.
1722		2217
1723	=cut	2218	=cut
1724		2219
1725	sub unique_maps() {	2220	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2221	[
1727	or return;	2222	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2223	utf8::decode $_;
1733	next if /\.pst$/;	2224	/\.map$/
1734	next unless /^$PATH_SEP/o;	2225	? normalise $_
1735		2226	: ()
1736	push @paths, cf::map::normalise $_;	2227	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2228	]
1738
1739	\@paths
1740	}	2229	}
1741		2230
1742	package cf;	2231	package cf;
1743		2232
1744	=back	2233	=back
…		…
1762	map { $_, inv_recursive_ $_->inv } @_	2251	map { $_, inv_recursive_ $_->inv } @_
1763	}	2252	}
1764		2253
1765	sub inv_recursive {	2254	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2255	inv_recursive_ inv $_[0]
		2256	}
		2257
		2258	=item $ref = $ob->ref
		2259
		2260	creates and returns a persistent reference to an objetc that can be stored as a string.
		2261
		2262	=item $ob = cf::object::deref ($refstring)
		2263
		2264	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2265	even if the object actually exists. May block.
		2266
		2267	=cut
		2268
		2269	sub deref {
		2270	my ($ref) = @_;
		2271
		2272	# temporary compatibility#TODO#remove
		2273	$ref =~ s{^<}{player/<};
		2274
		2275	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2276	my ($uuid, $name) = ($1, $2);
		2277	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2278	or return;
		2279	$pl->ob->uuid eq $uuid
		2280	or return;
		2281
		2282	$pl->ob
		2283	} else {
		2284	warn "$ref: cannot resolve object reference\n";
		2285	undef
		2286	}
1767	}	2287	}
1768		2288
1769	package cf;	2289	package cf;
1770		2290
1771	=back	2291	=back
…		…
1790		2310
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2311	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2312
1793	if ($self->{record_replies}) {	2313	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2314	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2315
1795	} else {	2316	} else {
		2317	my $pl = $self->contr;
		2318
		2319	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2320	my $dialog = $pl->{npc_dialog};
		2321	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2322
		2323	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2324	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2325	$self->message ($msg, $flags);
		2326	}
1798	}	2327	}
		2328	}
		2329
		2330	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2331
		2332	=cut
		2333
		2334	sub cf::object::send_msg {
		2335	my $pl = shift->contr
		2336	or return;
		2337	$pl->send_msg (@_);
1799	}	2338	}
1800		2339
1801	=item $player_object->may ("access")	2340	=item $player_object->may ("access")
1802		2341
1803	Returns wether the given player is authorized to access resource "access"	2342	Returns wether the given player is authorized to access resource "access"
…		…
1850	$self->deactivate_recursive;	2389	$self->deactivate_recursive;
1851		2390
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2391	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2392
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2393	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2394	if $self->map && $self->map->{path} ne "{link}";
1856		2395
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2396	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2397	}
1859		2398
1860	sub cf::object::player::leave_link {	2399	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2400	my ($self, $map, $x, $y) = @_;
		2401
		2402	return unless $self->contr->active;
1862		2403
1863	my $link_pos = delete $self->{_link_pos};	2404	my $link_pos = delete $self->{_link_pos};
1864		2405
1865	unless ($map) {	2406	unless ($map) {
1866	# restore original map position	2407	# restore original map position
…		…
1880	# use -1 or undef as default coordinates, not 0, 0	2421	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2422	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2423	if $x <=0 && $y <= 0;
1883		2424
1884	$map->load;	2425	$map->load;
1885	$map->load_diag;	2426	$map->load_neighbours;
1886		2427
1887	return unless $self->contr->active;	2428	return unless $self->contr->active;
1888	$self->activate_recursive;	2429	$self->activate_recursive;
1889		2430
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2431	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2432	$self->enter_map ($map, $x, $y);
1892	}	2433	}
1893		2434
1894	cf::player->attach (	2435	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1895	on_logout => sub {
1896	my ($pl) = @_;
1897		2436
1898	# abort map switching before logout	2437	Moves the player to the given map-path and coordinates by first freezing
1899	if ($pl->ob->{_link_pos}) {	2438	her, loading and preparing them map, calling the provided $check callback
1900	cf::sync_job {	2439	that has to return the map if sucecssful, and then unfreezes the player on
1901	$pl->ob->leave_link	2440	the new (success) or old (failed) map position. In either case, $done will
1902	};	2441	be called at the end of this process.
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2442
1908	# try to abort aborted map switching on player login :)
1909	# should happen only on crashes
1910	if ($pl->ob->{_link_pos}) {
1911	$pl->ob->enter_link;
1912	(async {
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925
1926	=item $player_object->goto ($path, $x, $y)
1927
1928	=cut	2443	=cut
		2444
		2445	our $GOTOGEN;
1929		2446
1930	sub cf::object::player::goto {	2447	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2448	my ($self, $path, $x, $y, $check, $done) = @_;
		2449
		2450	# do generation counting so two concurrent goto's will be executed in-order
		2451	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2452
1933	$self->enter_link;	2453	$self->enter_link;
1934		2454
1935	(async {	2455	(async {
		2456	# *tag paths override both path and x|y
		2457	if ($path =~ /^\*(.*)$/) {
		2458	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2459	my $ob = $obs[rand @obs];
		2460
		2461	# see if we actually can go there
		2462	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2463	$ob = $obs[rand @obs];
		2464	} else {
		2465	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2466	}
		2467	# else put us there anyways for now #d#
		2468
		2469	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2470	} else {
		2471	($path, $x, $y) = (undef, undef, undef);
		2472	}
		2473	}
		2474
1936	my $map = eval {	2475	my $map = eval {
1937	my $map = cf::map::find $path;	2476	my $map = defined $path ? cf::map::find $path : undef;
		2477
		2478	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2479	$map = $map->customise_for ($self);
		2480	$map = $check->($map) if $check && $map;
		2481	} else {
		2482	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2483	}
		2484
1939	$map	2485	$map
		2486	};
		2487
		2488	if ($@) {
		2489	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2491	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2492
		2493	if ($gen == $self->{_goto_generation}) {
		2494	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2495	$self->leave_link ($map, $x, $y);
		2496	}
		2497
		2498	$done->() if $done;
1944	})->prio (1);	2499	})->prio (1);
1945	}	2500	}
1946		2501
1947	=item $player_object->enter_exit ($exit_object)	2502	=item $player_object->enter_exit ($exit_object)
1948		2503
…		…
1987		2542
1988	$rmp->{random_seed} ||= $exit->random_seed;	2543	$rmp->{random_seed} ||= $exit->random_seed;
1989		2544
1990	my $data = cf::to_json $rmp;	2545	my $data = cf::to_json $rmp;
1991	my $md5 = Digest::MD5::md5_hex $data;	2546	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2547	my $meta = "$RANDOMDIR/$md5.meta";
1993		2548
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2549	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2550	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2551	undef $fh;
1997	aio_rename "$meta~", $meta;	2552	aio_rename "$meta~", $meta;
…		…
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2571	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;	2572	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;	2573	my $sp = $exit->stats->sp;
2019		2574
2020	$self->enter_link;	2575	$self->enter_link;
		2576
		2577	# if exit is damned, update players death & WoR home-position
		2578	$self->contr->savebed ($slaying, $hp, $sp)
		2579	if $exit->flag (FLAG_DAMNED);
2021		2580
2022	(async {	2581	(async {
2023	$self->deactivate_recursive; # just to be sure	2582	$self->deactivate_recursive; # just to be sure
2024	unless (eval {	2583	unless (eval {
2025	$self->goto ($slaying, $hp, $sp);	2584	$self->goto ($slaying, $hp, $sp);
…		…
2053		2612
2054	utf8::encode $text;	2613	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2614	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2615	}
2057		2616
		2617	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2618
		2619	Send a drawinfo or msg packet to the client, formatting the msg for the
		2620	client if neccessary. C<$type> should be a string identifying the type of
		2621	the message, with C<log> being the default. If C<$color> is negative, suppress
		2622	the message unless the client supports the msg packet.
		2623
		2624	=cut
		2625
		2626	our %CHANNEL = (
		2627	"c/identify" => {
		2628	id => "identify",
		2629	title => "Identify",
		2630	reply => undef,
		2631	tooltip => "Items recently identified",
		2632	},
		2633	"c/examine" => {
		2634	id => "examine",
		2635	title => "Examine",
		2636	reply => undef,
		2637	tooltip => "Signs and other items you examined",
		2638	},
		2639	);
		2640
		2641	sub cf::client::send_msg {
		2642	my ($self, $channel, $msg, $color, @extra) = @_;
		2643
		2644	$msg = $self->pl->expand_cfpod ($msg);
		2645
		2646	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2647
		2648	# check predefined channels, for the benefit of C
		2649	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2650
		2651	if (ref $channel) {
		2652	# send meta info to client, if not yet sent
		2653	unless (exists $self->{channel}{$channel->{id}}) {
		2654	$self->{channel}{$channel->{id}} = $channel;
		2655	$self->ext_msg (channel_info => $channel)
		2656	if $self->can_msg;
		2657	}
		2658
		2659	$channel = $channel->{id};
		2660	}
		2661
		2662	return unless @extra || length $msg;
		2663
		2664	if ($self->can_msg) {
		2665	# default colour, mask it out
		2666	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2667	if $color & cf::NDI_DEF;
		2668
		2669	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2670	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2671	} else {
		2672	if ($color >= 0) {
		2673	# replace some tags by gcfclient-compatible ones
		2674	for ($msg) {
		2675	1 while
		2676	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2677	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2678	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2679	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2680	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2681	}
		2682
		2683	$color &= cf::NDI_COLOR_MASK;
		2684
		2685	utf8::encode $msg;
		2686
		2687	if (0 && $msg =~ /\[/) {
		2688	# COMMAND/INFO
		2689	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2690	} else {
		2691	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2692	$self->send_packet ("drawinfo $color $msg")
		2693	}
		2694	}
		2695	}
		2696	}
		2697
2058	=item $client->ext_event ($type, %msg)	2698	=item $client->ext_msg ($type, @msg)
2059		2699
2060	Sends an exti event to the client.	2700	Sends an ext event to the client.
2061		2701
2062	=cut	2702	=cut
2063		2703
2064	sub cf::client::ext_event($$%) {	2704	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2705	my ($self, $type, @msg) = @_;
2066		2706
		2707	if ($self->extcmd == 2) {
		2708	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2709	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2710	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2711	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2712	}
		2713	}
		2714
		2715	=item $client->ext_reply ($msgid, @msg)
		2716
		2717	Sends an ext reply to the client.
		2718
		2719	=cut
		2720
		2721	sub cf::client::ext_reply($$@) {
		2722	my ($self, $id, @msg) = @_;
		2723
		2724	if ($self->extcmd == 2) {
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2726	} elsif ($self->extcmd == 1) {
		2727	#TODO: version 1, remove
		2728	unshift @msg, msgtype => "reply", msgid => $id;
		2729	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2730	}
2069	}	2731	}
2070		2732
2071	=item $success = $client->query ($flags, "text", \&cb)	2733	=item $success = $client->query ($flags, "text", \&cb)
2072		2734
2073	Queues a query to the client, calling the given callback with	2735	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2736	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2737	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2738
2077	Queries can fail, so check the return code. Or don't, as queries will become	2739	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2740	become reliable at some point in the future.
2079		2741
2080	=cut	2742	=cut
2081		2743
2082	sub cf::client::query {	2744	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2745	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2753	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2754	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2755
2094	$self->send_packet ($self->{query_queue}[0][0])	2756	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2757	if @{ $self->{query_queue} } == 1;
		2758
		2759	1
2096	}	2760	}
2097		2761
2098	cf::client->attach (	2762	cf::client->attach (
		2763	on_connect => sub {
		2764	my ($ns) = @_;
		2765
		2766	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2767	},
2099	on_reply => sub {	2768	on_reply => sub {
2100	my ($ns, $msg) = @_;	2769	my ($ns, $msg) = @_;
2101		2770
2102	# this weird shuffling is so that direct followup queries	2771	# this weird shuffling is so that direct followup queries
2103	# get handled first	2772	# get handled first
…		…
2115	} else {	2784	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2785	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2786	}
2118	}	2787	}
2119	},	2788	},
		2789	on_exticmd => sub {
		2790	my ($ns, $buf) = @_;
		2791
		2792	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2793
		2794	if (ref $msg) {
		2795	my ($type, $reply, @payload) =
		2796	"ARRAY" eq ref $msg
		2797	? @$msg
		2798	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2799
		2800	my @reply;
		2801
		2802	if (my $cb = $EXTICMD{$type}) {
		2803	@reply = $cb->($ns, @payload);
		2804	}
		2805
		2806	$ns->ext_reply ($reply, @reply)
		2807	if $reply;
		2808
		2809	} else {
		2810	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2811	}
		2812
		2813	cf::override;
		2814	},
2120	);	2815	);
2121		2816
2122	=item $client->async (\&cb)	2817	=item $client->async (\&cb)
2123		2818
2124	Create a new coroutine, running the specified callback. The coroutine will	2819	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	2860	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	2861	our $safe_hole = new Safe::Hole;
2167		2862
2168	$SIG{FPE} = 'IGNORE';	2863	$SIG{FPE} = 'IGNORE';
2169		2864
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2865	$safe->permit_only (Opcode::opset qw(
		2866	:base_core :base_mem :base_orig :base_math
		2867	grepstart grepwhile mapstart mapwhile
		2868	sort time
		2869	));
2171		2870
2172	# here we export the classes and methods available to script code	2871	# here we export the classes and methods available to script code
2173		2872
2174	=pod	2873	=pod
2175		2874
2176	The following functions and methods are available within a safe environment:	2875	The following functions and methods are available within a safe environment:
2177		2876
2178	cf::object contr pay_amount pay_player map	2877	cf::object
		2878	contr pay_amount pay_player map x y force_find force_add
		2879	insert remove name archname title slaying race decrease_ob_nr
		2880
2179	cf::object::player player	2881	cf::object::player
2180	cf::player peaceful	2882	player
2181	cf::map trigger	2883
		2884	cf::player
		2885	peaceful
		2886
		2887	cf::map
		2888	trigger
2182		2889
2183	=cut	2890	=cut
2184		2891
2185	for (	2892	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	2893	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2894	insert remove inv name archname title slaying race
		2895	decrease_ob_nr)],
2187	["cf::object::player" => qw(player)],	2896	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	2897	["cf::player" => qw(peaceful)],
2189	["cf::map" => qw(trigger)],	2898	["cf::map" => qw(trigger)],
2190	) {	2899	) {
2191	no strict 'refs';	2900	no strict 'refs';
…		…
2262	=back	2971	=back
2263		2972
2264	=cut	2973	=cut
2265		2974
2266	#############################################################################	2975	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	eval {
2420	local $SIG{__DIE__};
2421	local $SIG{__WARN__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	_exit 0;
2429	}
2430	}
2431
2432
2433
2434	#############################################################################
2435	# the server's init and main functions	2976	# the server's init and main functions
2436		2977
2437	sub load_facedata($) {	2978	sub load_facedata($) {
2438	my ($path) = @_;	2979	my ($path) = @_;
		2980
		2981	# HACK to clear player env face cache, we need some signal framework
		2982	# for this (global event?)
		2983	%ext::player_env::MUSIC_FACE_CACHE = ();
		2984
		2985	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2439		2986
2440	warn "loading facedata from $path\n";	2987	warn "loading facedata from $path\n";
2441		2988
2442	my $facedata;	2989	my $facedata;
2443	0 < aio_load $path, $facedata	2990	0 < aio_load $path, $facedata
…		…
2446	$facedata = Coro::Storable::thaw $facedata;	2993	$facedata = Coro::Storable::thaw $facedata;
2447		2994
2448	$facedata->{version} == 2	2995	$facedata->{version} == 2
2449	or cf::cleanup "$path: version mismatch, cannot proceed.";	2996	or cf::cleanup "$path: version mismatch, cannot proceed.";
2450		2997
		2998	# patch in the exptable
		2999	$facedata->{resource}{"res/exp_table"} = {
		3000	type => FT_RSRC,
		3001	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3002	};
		3003	cf::cede_to_tick;
		3004
2451	{	3005	{
2452	my $faces = $facedata->{faceinfo};	3006	my $faces = $facedata->{faceinfo};
2453		3007
2454	while (my ($face, $info) = each %$faces) {	3008	while (my ($face, $info) = each %$faces) {
2455	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3009	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2456	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3010	cf::face::set_visibility $idx, $info->{visibility};
		3011	cf::face::set_magicmap $idx, $info->{magicmap};
2457	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3012	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2458	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3013	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2459	Coro::cede;	3014
		3015	cf::cede_to_tick;
2460	}	3016	}
2461		3017
2462	while (my ($face, $info) = each %$faces) {	3018	while (my ($face, $info) = each %$faces) {
2463	next unless $info->{smooth};	3019	next unless $info->{smooth};
2464	my $idx = cf::face::find $face	3020	my $idx = cf::face::find $face
2465	or next;	3021	or next;
2466	if (my $smooth = cf::face::find $info->{smooth}) {	3022	if (my $smooth = cf::face::find $info->{smooth}) {
		3023	cf::face::set_smooth $idx, $smooth;
2467	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3024	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2468	} else {	3025	} else {
2469	warn "smooth face '$info->{smooth}' not found for face '$face'";	3026	warn "smooth face '$info->{smooth}' not found for face '$face'";
2470	}	3027	}
2471	Coro::cede;	3028
		3029	cf::cede_to_tick;
2472	}	3030	}
2473	}	3031	}
2474		3032
2475	{	3033	{
2476	my $anims = $facedata->{animinfo};	3034	my $anims = $facedata->{animinfo};
2477		3035
2478	while (my ($anim, $info) = each %$anims) {	3036	while (my ($anim, $info) = each %$anims) {
2479	cf::anim::set $anim, $info->{frames}, $info->{facings};	3037	cf::anim::set $anim, $info->{frames}, $info->{facings};
2480	Coro::cede;	3038	cf::cede_to_tick;
2481	}	3039	}
2482		3040
2483	cf::anim::invalidate_all; # d'oh	3041	cf::anim::invalidate_all; # d'oh
2484	}	3042	}
2485		3043
		3044	{
		3045	# TODO: for gcfclient pleasure, we should give resources
		3046	# that gcfclient doesn't grok a >10000 face index.
		3047	my $res = $facedata->{resource};
		3048
		3049	my $soundconf = delete $res->{"res/sound.conf"};
		3050
		3051	while (my ($name, $info) = each %$res) {
		3052	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3053	my $data;
		3054
		3055	if ($info->{type} & 1) {
		3056	# prepend meta info
		3057
		3058	my $meta = $enc->encode ({
		3059	name => $name,
		3060	%{ $info->{meta} || {} },
		3061	});
		3062
		3063	$data = pack "(w/a*)*", $meta, $info->{data};
		3064	} else {
		3065	$data = $info->{data};
		3066	}
		3067
		3068	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3069	cf::face::set_type $idx, $info->{type};
		3070
		3071	cf::cede_to_tick;
		3072	}
		3073
		3074	if ($soundconf) {
		3075	$soundconf = $enc->decode (delete $soundconf->{data});
		3076
		3077	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3078	my $sound = $soundconf->{compat}[$_]
		3079	or next;
		3080
		3081	my $face = cf::face::find "sound/$sound->[1]";
		3082	cf::sound::set $sound->[0] => $face;
		3083	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3084	}
		3085
		3086	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3087	my $face = cf::face::find "sound/$v";
		3088	cf::sound::set $k => $face;
		3089	}
		3090	}
		3091	}
		3092
2486	1	3093	1
2487	}	3094	}
2488		3095
		3096	register_exticmd fx_want => sub {
		3097	my ($ns, $want) = @_;
		3098
		3099	while (my ($k, $v) = each %$want) {
		3100	$ns->fx_want ($k, $v);
		3101	}
		3102	};
		3103
		3104	sub reload_regions {
		3105	# HACK to clear player env face cache, we need some signal framework
		3106	# for this (global event?)
		3107	%ext::player_env::MUSIC_FACE_CACHE = ();
		3108
		3109	load_resource_file "$MAPDIR/regions"
		3110	or die "unable to load regions file\n";
		3111
		3112	for (cf::region::list) {
		3113	$_->{match} = qr/$_->{match}/
		3114	if exists $_->{match};
		3115	}
		3116	}
		3117
2489	sub reload_facedata {	3118	sub reload_facedata {
2490	load_facedata sprintf "%s/facedata", cf::datadir	3119	load_facedata "$DATADIR/facedata"
2491	or die "unable to load facedata\n";	3120	or die "unable to load facedata\n";
2492	}	3121	}
2493		3122
2494	sub reload_regions {
2495	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2496	or die "unable to load regions file\n";
2497	}
2498
2499	sub reload_archetypes {	3123	sub reload_archetypes {
2500	load_resource_file sprintf "%s/archetypes", cf::datadir	3124	load_resource_file "$DATADIR/archetypes"
2501	or die "unable to load archetypes\n";	3125	or die "unable to load archetypes\n";
		3126	#d# NEED to laod twice to resolve forward references
		3127	# this really needs to be done in an extra post-pass
		3128	# (which needs to be synchronous, so solve it differently)
		3129	load_resource_file "$DATADIR/archetypes"
		3130	or die "unable to load archetypes\n";
2502	}	3131	}
2503		3132
2504	sub reload_treasures {	3133	sub reload_treasures {
2505	load_resource_file sprintf "%s/treasures", cf::datadir	3134	load_resource_file "$DATADIR/treasures"
2506	or die "unable to load treasurelists\n";	3135	or die "unable to load treasurelists\n";
2507	}	3136	}
2508		3137
2509	sub reload_resources {	3138	sub reload_resources {
2510	warn "reloading resource files...\n";	3139	warn "reloading resource files...\n";
2511		3140
2512	reload_regions;	3141	reload_regions;
2513	reload_facedata;	3142	reload_facedata;
		3143	#reload_archetypes;#d#
2514	reload_archetypes;	3144	reload_archetypes;
2515	reload_treasures;	3145	reload_treasures;
2516		3146
2517	warn "finished reloading resource files\n";	3147	warn "finished reloading resource files\n";
2518	}	3148	}
2519		3149
2520	sub init {	3150	sub init {
2521	reload_resources;	3151	reload_resources;
2522	}	3152	}
2523		3153
2524	sub cfg_load {	3154	sub reload_config {
2525	open my $fh, "<:utf8", cf::confdir . "/config"	3155	open my $fh, "<:utf8", "$CONFDIR/config"
2526	or return;	3156	or return;
2527		3157
2528	local $/;	3158	local $/;
2529	*CFG = YAML::Syck::Load <$fh>;	3159	*CFG = YAML::Syck::Load <$fh>;
2530		3160
…		…
2549	(async {	3179	(async {
2550	Event::one_event;	3180	Event::one_event;
2551	})->prio (Coro::PRIO_MAX);	3181	})->prio (Coro::PRIO_MAX);
2552	};	3182	};
2553		3183
2554	cfg_load;	3184	reload_config;
2555	db_init;	3185	db_init;
2556	load_extensions;	3186	load_extensions;
2557		3187
2558	$TICK_WATCHER->start;	3188	$TICK_WATCHER->start;
2559	Event::loop;	3189	Event::loop;
…		…
2575	},	3205	},
2576	);	3206	);
2577	}	3207	}
2578	}	3208	}
2579		3209
		3210	sub write_runtime {
		3211	my $runtime = "$LOCALDIR/runtime";
		3212
		3213	# first touch the runtime file to show we are still running:
		3214	# the fsync below can take a very very long time.
		3215
		3216	IO::AIO::aio_utime $runtime, undef, undef;
		3217
		3218	my $guard = cf::lock_acquire "write_runtime";
		3219
		3220	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3221	or return;
		3222
		3223	my $value = $cf::RUNTIME + 90 + 10;
		3224	# 10 is the runtime save interval, for a monotonic clock
		3225	# 60 allows for the watchdog to kill the server.
		3226
		3227	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3228	and return;
		3229
		3230	# always fsync - this file is important
		3231	aio_fsync $fh
		3232	and return;
		3233
		3234	# touch it again to show we are up-to-date
		3235	aio_utime $fh, undef, undef;
		3236
		3237	close $fh
		3238	or return;
		3239
		3240	aio_rename "$runtime~", $runtime
		3241	and return;
		3242
		3243	warn "runtime file written.\n";
		3244
		3245	1
		3246	}
		3247
2580	sub emergency_save() {	3248	sub emergency_save() {
2581	my $freeze_guard = cf::freeze_mainloop;	3249	my $freeze_guard = cf::freeze_mainloop;
2582		3250
2583	warn "enter emergency perl save\n";	3251	warn "enter emergency perl save\n";
2584		3252
…		…
2659	%EXT_CORO = ();	3327	%EXT_CORO = ();
2660		3328
2661	warn "removing commands";	3329	warn "removing commands";
2662	%COMMAND = ();	3330	%COMMAND = ();
2663		3331
2664	warn "removing ext commands";	3332	warn "removing ext/exti commands";
2665	%EXTCMD = ();	3333	%EXTCMD = ();
		3334	%EXTICMD = ();
2666		3335
2667	warn "unloading/nuking all extensions";	3336	warn "unloading/nuking all extensions";
2668	for my $pkg (@EXTS) {	3337	for my $pkg (@EXTS) {
2669	warn "... unloading $pkg";	3338	warn "... unloading $pkg";
2670		3339
…		…
2700	Symbol::delete_package "safe::$_"	3369	Symbol::delete_package "safe::$_"
2701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3370	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2702		3371
2703	warn "unloading cf.pm \"a bit\"";	3372	warn "unloading cf.pm \"a bit\"";
2704	delete $INC{"cf.pm"};	3373	delete $INC{"cf.pm"};
		3374	delete $INC{"cf/pod.pm"};
2705		3375
2706	# don't, removes xs symbols, too,	3376	# don't, removes xs symbols, too,
2707	# and global variables created in xs	3377	# and global variables created in xs
2708	#Symbol::delete_package __PACKAGE__;	3378	#Symbol::delete_package __PACKAGE__;
2709		3379
…		…
2712	warn "reloading cf.pm";	3382	warn "reloading cf.pm";
2713	require cf;	3383	require cf;
2714	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3384	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2715		3385
2716	warn "loading config and database again";	3386	warn "loading config and database again";
2717	cf::cfg_load;	3387	cf::reload_config;
2718		3388
2719	warn "loading extensions";	3389	warn "loading extensions";
2720	cf::load_extensions;	3390	cf::load_extensions;
2721		3391
2722	warn "reattaching attachments to objects/players";	3392	warn "reattaching attachments to objects/players";
…		…
2800	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3470	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2801	unless ++$bug_warning > 10;	3471	unless ++$bug_warning > 10;
2802	return;	3472	return;
2803	}	3473	}
2804		3474
2805	$NOW = Event::time;	3475	$NOW = $tick_start = Event::time;
2806		3476
2807	cf::server_tick; # one server iteration	3477	cf::server_tick; # one server iteration
2808		3478
2809	$RUNTIME += $TICK;	3479	$RUNTIME += $TICK;
2810	$NEXT_TICK += $TICK;	3480	$NEXT_TICK += $TICK;
…		…
2815	write_runtime	3485	write_runtime
2816	or warn "ERROR: unable to write runtime file: $!";	3486	or warn "ERROR: unable to write runtime file: $!";
2817	};	3487	};
2818	}	3488	}
2819		3489
2820	# my $AFTER = Event::time;	3490	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2821	# warn $AFTER - $NOW;#d#	3491	$sig->send;
		3492	}
		3493	while (my $sig = shift @WAIT_FOR_TICK) {
		3494	$sig->send;
		3495	}
		3496
		3497	$NOW = Event::time;
2822		3498
2823	# if we are delayed by four ticks or more, skip them all	3499	# if we are delayed by four ticks or more, skip them all
2824	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3500	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2825		3501
2826	$TICK_WATCHER->at ($NEXT_TICK);	3502	$TICK_WATCHER->at ($NEXT_TICK);
2827	$TICK_WATCHER->start;	3503	$TICK_WATCHER->start;
2828		3504
2829	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3505	$LOAD = ($NOW - $tick_start) / $TICK;
2830	$sig->send;	3506	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2831	}
2832	while (my $sig = shift @WAIT_FOR_TICK) {
2833	$sig->send;
2834	}
2835		3507
2836	_post_tick;	3508	_post_tick;
2837	},	3509	},
2838	);	3510	);
2839		3511
2840	{	3512	{
		3513	BDB::min_parallel 8;
2841	BDB::max_poll_time $TICK * 0.1;	3514	BDB::max_poll_time $TICK * 0.1;
2842	$BDB_POLL_WATCHER = Event->io (	3515	$BDB_POLL_WATCHER = Event->io (
2843	reentrant => 0,	3516	reentrant => 0,
2844	fd => BDB::poll_fileno,	3517	fd => BDB::poll_fileno,
2845	poll => 'r',	3518	poll => 'r',
2846	prio => 0,	3519	prio => 0,
2847	data => WF_AUTOCANCEL,	3520	data => WF_AUTOCANCEL,
2848	cb => \&BDB::poll_cb,	3521	cb => \&BDB::poll_cb,
2849	);	3522	);
2850	BDB::min_parallel 8;
2851		3523
2852	BDB::set_sync_prepare {	3524	BDB::set_sync_prepare {
2853	my $status;	3525	my $status;
2854	my $current = $Coro::current;	3526	my $current = $Coro::current;
2855	(	3527	(
…		…
2864	)	3536	)
2865	};	3537	};
2866		3538
2867	unless ($DB_ENV) {	3539	unless ($DB_ENV) {
2868	$DB_ENV = BDB::db_env_create;	3540	$DB_ENV = BDB::db_env_create;
		3541	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3542	| BDB::LOG_AUTOREMOVE, 1);
		3543	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3544	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2869		3545
2870	cf::sync_job {	3546	cf::sync_job {
2871	eval {	3547	eval {
2872	BDB::db_env_open	3548	BDB::db_env_open
2873	$DB_ENV,	3549	$DB_ENV,
2874	$BDB_ENV_DIR,	3550	$BDBDIR,
2875	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3551	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2876	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3552	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2877	0666;	3553	0666;
2878		3554
2879	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3555	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2880
2881	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2882	$DB_ENV->set_lk_detect;
2883	};	3556	};
2884		3557
2885	cf::cleanup "db_env_open(db): $@" if $@;	3558	cf::cleanup "db_env_open(db): $@" if $@;
2886	};	3559	};
2887	}	3560	}
		3561
		3562	$BDB_DEADLOCK_WATCHER = Event->timer (
		3563	after => 3,
		3564	interval => 1,
		3565	hard => 1,
		3566	prio => 0,
		3567	data => WF_AUTOCANCEL,
		3568	cb => sub {
		3569	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3570	},
		3571	);
		3572	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3573	after => 11,
		3574	interval => 60,
		3575	hard => 1,
		3576	prio => 0,
		3577	data => WF_AUTOCANCEL,
		3578	cb => sub {
		3579	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3580	},
		3581	);
		3582	$BDB_TRICKLE_WATCHER = Event->timer (
		3583	after => 5,
		3584	interval => 10,
		3585	hard => 1,
		3586	prio => 0,
		3587	data => WF_AUTOCANCEL,
		3588	cb => sub {
		3589	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3590	},
		3591	);
2888	}	3592	}
2889		3593
2890	{	3594	{
2891	IO::AIO::min_parallel 8;	3595	IO::AIO::min_parallel 8;
2892		3596
…		…
2900	prio => 6,	3604	prio => 6,
2901	cb => \&IO::AIO::poll_cb,	3605	cb => \&IO::AIO::poll_cb,
2902	);	3606	);
2903	}	3607	}
2904		3608
		3609	my $_log_backtrace;
		3610
		3611	sub _log_backtrace {
		3612	my ($msg, @addr) = @_;
		3613
		3614	$msg =~ s/\n//;
		3615
		3616	# limit the # of concurrent backtraces
		3617	if ($_log_backtrace < 2) {
		3618	++$_log_backtrace;
		3619	async {
		3620	my @bt = fork_call {
		3621	@addr = map { sprintf "%x", $_ } @addr;
		3622	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3623	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3624	or die "addr2line: $!";
		3625
		3626	my @funcs;
		3627	my @res = <$fh>;
		3628	chomp for @res;
		3629	while (@res) {
		3630	my ($func, $line) = splice @res, 0, 2, ();
		3631	push @funcs, "[$func] $line";
		3632	}
		3633
		3634	@funcs
		3635	};
		3636
		3637	LOG llevInfo, "[ABT] $msg\n";
		3638	LOG llevInfo, "[ABT] $_\n" for @bt;
		3639	--$_log_backtrace;
		3640	};
		3641	} else {
		3642	LOG llevInfo, "[ABT] $msg\n";
		3643	LOG llevInfo, "[ABT] [suppressed]\n";
		3644	}
		3645	}
		3646
2905	# load additional modules	3647	# load additional modules
2906	use cf::pod;	3648	use cf::pod;
2907		3649
2908	END { cf::emergency_save }	3650	END { cf::emergency_save }
2909		3651

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