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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.278 by root, Mon Jun 11 21:38:14 2007 UTC vs.
Revision 1.361 by root, Sun Sep 9 12:52:48 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;
…		…
83	our %CFG;	87	our %CFG;
84		88
85	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	90	our $RUNTIME;
87		91
88	our %PLAYER; # all users	92	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	93	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	94	our $LINK_MAP; # the special {link} map, which is always available
91		95
92	# used to convert map paths into valid unix filenames by replacing / by ∕	96	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		98
…		…
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	167	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		168
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	170	returns directly I<after> the tick processing (and consequently, can only wake one process
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
168		178
169	=back	179	=back
170		180
171	=cut	181	=cut
172		182
…		…
206	}	216	}
207		217
208	$Event::DIED = sub {	218	$Event::DIED = sub {
209	warn "error in event callback: @_";	219	warn "error in event callback: @_";
210	};	220	};
		221
		222	#############################################################################
211		223
212	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
213		225
214	=over 4	226	=over 4
215		227
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	247	$d
236	} || "[unable to dump $_[0]: '$@']";	248	} || "[unable to dump $_[0]: '$@']";
237	}	249	}
238		250
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
242		252
243	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
244		254
245	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
246		256
247	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
		258
		259	=cut
		260
		261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		262
		263	sub to_json ($) { $json_coder->encode ($_[0]) }
		264	sub from_json ($) { $json_coder->decode ($_[0]) }
248		265
249	=item cf::lock_wait $string	266	=item cf::lock_wait $string
250		267
251	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
252		269
…		…
255	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
257	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
258	returned.	275	returned.
259		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
260	Lock names should begin with a unique identifier (for example, cf::map::find	280	Lock names should begin with a unique identifier (for example, cf::map::find
261	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
262		282
263	=item $locked = cf::lock_active $string	283	=item $locked = cf::lock_active $string
264		284
265	Return true if the lock is currently active, i.e. somebody has locked it.	285	Return true if the lock is currently active, i.e. somebody has locked it.
266		286
267	=cut	287	=cut
268		288
269	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
270		291
271	sub lock_wait($) {	292	sub lock_wait($) {
272	my ($key) = @_;	293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
273		299
274	# wait for lock, if any	300	# wait for lock, if any
275	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
276	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
277	Coro::schedule;	303	Coro::schedule;
…		…
283		309
284	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
285	lock_wait $key;	311	lock_wait $key;
286		312
287	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
288		315
289	Coro::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
290	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
291	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
292	}	320	}
293	}	321	}
294		322
…		…
306	};	334	};
307	$TICK_WATCHER->stop;	335	$TICK_WATCHER->stop;
308	$guard	336	$guard
309	}	337	}
310		338
		339	=item cf::get_slot $time[, $priority[, $name]]
		340
		341	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		342	This call blocks and returns only when you have at least C<$time> seconds
		343	of cpu time till the next tick. The slot is only valid till the next cede.
		344
		345	The optional C<$name> can be used to identify the job to run. It might be
		346	used for statistical purposes and should identify the same time-class.
		347
		348	Useful for short background jobs.
		349
		350	=cut
		351
		352	our @SLOT_QUEUE;
		353	our $SLOT_QUEUE;
		354
		355	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		356	$SLOT_QUEUE = Coro::async {
		357	my $signal = new Coro::Signal;
		358
		359	while () {
		360	next_job:
		361	my $avail = cf::till_tick;
		362	if ($avail > 0.01) {
		363	for (0 .. $#SLOT_QUEUE) {
		364	if ($SLOT_QUEUE[$_][0] < $avail) {
		365	my $job = splice @SLOT_QUEUE, $_, 1, ();
		366	$job->[2]->send;
		367	Coro::cede;
		368	goto next_job;
		369	}
		370	}
		371	}
		372
		373	if (@SLOT_QUEUE) {
		374	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		375	push @cf::WAIT_FOR_TICK, $signal;
		376	$signal->wait;
		377	} else {
		378	Coro::schedule;
		379	}
		380	}
		381	};
		382
		383	sub get_slot($;$$) {
		384	my ($time, $pri, $name) = @_;
		385
		386	$time = $TICK * .6 if $time > $TICK * .6;
		387	my $sig = new Coro::Signal;
		388
		389	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		390	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		391	$SLOT_QUEUE->ready;
		392	$sig->wait;
		393	}
		394
311	=item cf::async { BLOCK }	395	=item cf::async { BLOCK }
312		396
313	Currently the same as Coro::async_pool, meaning you cannot use	397	Currently the same as Coro::async_pool, meaning you cannot use
314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	398	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
315	thing you are allowed to do is call C<prio> on it.	399	thing you are allowed to do is call C<prio> on it.
…		…
318		402
319	BEGIN { *async = \&Coro::async_pool }	403	BEGIN { *async = \&Coro::async_pool }
320		404
321	=item cf::sync_job { BLOCK }	405	=item cf::sync_job { BLOCK }
322		406
323	The design of crossfire+ requires that the main coro ($Coro::main) is	407	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	408	is always able to handle events or runnable, as Crossfire TRT is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	409	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		410	acceptable.
326		411
327	If it must be done, put the blocking parts into C<sync_job>. This will run	412	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	413	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	414	server will be frozen during this time, so the block should either finish
330	fast or be very important.	415	fast or be very important.
…		…
390	$EXT_CORO{$coro+0} = $coro;	475	$EXT_CORO{$coro+0} = $coro;
391		476
392	$coro	477	$coro
393	}	478	}
394		479
395	sub write_runtime {	480	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		481
398	# first touch the runtime file to show we are still running:	482	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	483	process, returning the results. Everything must be serialisable with
		484	Coro::Storable. May, of course, block. Note that the executed sub may
		485	never block itself or use any form of Event handling.
400		486
401	IO::AIO::aio_utime $runtime, undef, undef;	487	=cut
402		488
403	my $guard = cf::lock_acquire "write_runtime";	489	sub fork_call(&@) {
		490	my ($cb, @args) = @_;
404		491
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	492	# we seemingly have to make a local copy of the whole thing,
406	or return;	493	# otherwise perl prematurely frees the stuff :/
		494	# TODO: investigate and fix (likely this will be rather laborious)
407		495
408	my $value = $cf::RUNTIME + 90 + 10;	496	my @res = Coro::Util::fork_eval {
409	# 10 is the runtime save interval, for a monotonic clock	497	reset_signals;
410	# 60 allows for the watchdog to kill the server.	498	&$cb
		499	}, @args;
411		500
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	501	wantarray ? @res : $res[-1]
413	and return;	502	}
414		503
415	# always fsync - this file is important	504	=item $value = cf::db_get $family => $key
416	aio_fsync $fh
417	and return;
418		505
419	# touch it again to show we are up-to-date	506	Returns a single value from the environment database.
420	aio_utime $fh, undef, undef;
421		507
422	close $fh	508	=item cf::db_put $family => $key => $value
423	or return;
424		509
425	aio_rename "$runtime~", $runtime	510	Stores the given C<$value> in the family. It can currently store binary
426	and return;	511	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
427		512
428	warn "runtime file written.\n";	513	=cut
429		514
		515	our $DB;
		516
		517	sub db_init {
		518	unless ($DB) {
		519	$DB = BDB::db_create $DB_ENV;
		520
		521	cf::sync_job {
		522	eval {
		523	$DB->set_flags (BDB::CHKSUM);
		524
		525	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		526	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		527	cf::cleanup "db_open(db): $!" if $!;
		528	};
		529	cf::cleanup "db_open(db): $@" if $@;
		530	};
430	1	531	}
		532	}
		533
		534	sub db_get($$) {
		535	my $key = "$_[0]/$_[1]";
		536
		537	cf::sync_job {
		538	BDB::db_get $DB, undef, $key, my $data;
		539
		540	$! ? ()
		541	: $data
		542	}
		543	}
		544
		545	sub db_put($$$) {
		546	BDB::dbreq_pri 4;
		547	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		548	}
		549
		550	=item cf::cache $id => [$paths...], $processversion => $process
		551
		552	Generic caching function that returns the value of the resource $id,
		553	caching and regenerating as required.
		554
		555	This function can block.
		556
		557	=cut
		558
		559	sub cache {
		560	my ($id, $src, $processversion, $process) = @_;
		561
		562	my $meta =
		563	join "\x00",
		564	$processversion,
		565	map {
		566	aio_stat $_
		567	and Carp::croak "$_: $!";
		568
		569	($_, (stat _)[7,9])
		570	} @$src;
		571
		572	my $dbmeta = db_get cache => "$id/meta";
		573	if ($dbmeta ne $meta) {
		574	# changed, we may need to process
		575
		576	my @data;
		577	my $md5;
		578
		579	for (0 .. $#$src) {
		580	0 <= aio_load $src->[$_], $data[$_]
		581	or Carp::croak "$src->[$_]: $!";
		582	}
		583
		584	# if processing is expensive, check
		585	# checksum first
		586	if (1) {
		587	$md5 =
		588	join "\x00",
		589	$processversion,
		590	map {
		591	cf::cede_to_tick;
		592	($src->[$_], Digest::MD5::md5_hex $data[$_])
		593	} 0.. $#$src;
		594
		595
		596	my $dbmd5 = db_get cache => "$id/md5";
		597	if ($dbmd5 eq $md5) {
		598	db_put cache => "$id/meta", $meta;
		599
		600	return db_get cache => "$id/data";
		601	}
		602	}
		603
		604	my $t1 = Time::HiRes::time;
		605	my $data = $process->(\@data);
		606	my $t2 = Time::HiRes::time;
		607
		608	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		609
		610	db_put cache => "$id/data", $data;
		611	db_put cache => "$id/md5" , $md5;
		612	db_put cache => "$id/meta", $meta;
		613
		614	return $data;
		615	}
		616
		617	db_get cache => "$id/data"
431	}	618	}
432		619
433	=item cf::datalog type => key => value, ...	620	=item cf::datalog type => key => value, ...
434		621
435	Log a datalog packet of the given type with the given key-value pairs.	622	Log a datalog packet of the given type with the given key-value pairs.
…		…
453	attach callbacks/event handlers (a collection of which is called an "attachment")	640	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	641	to it. All such attachable objects support the following methods.
455		642
456	In the following description, CLASS can be any of C<global>, C<object>	643	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	644	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	645	Crossfire TRT).
459		646
460	=over 4	647	=over 4
461		648
462	=item $attachable->attach ($attachment, key => $value...)	649	=item $attachable->attach ($attachment, key => $value...)
463		650
…		…
665	_attach $registry, $klass, @attach;	852	_attach $registry, $klass, @attach;
666	}	853	}
667		854
668	$obj->{$name} = \%arg;	855	$obj->{$name} = \%arg;
669	} else {	856	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	857	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	858	}
672		859
673	$obj->{_attachment}{$name} = undef;	860	$obj->{_attachment}{$name} = undef;
674	}	861	}
675		862
…		…
715	";	902	";
716	die if $@;	903	die if $@;
717	}	904	}
718		905
719	our $override;	906	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	907	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		908
722	sub override {	909	sub override {
723	$override = 1;	910	$override = 1;
724	@invoke_results = ();	911	@INVOKE_RESULTS = (@_);
725	}	912	}
726		913
727	sub do_invoke {	914	sub do_invoke {
728	my $event = shift;	915	my $event = shift;
729	my $callbacks = shift;	916	my $callbacks = shift;
730		917
731	@invoke_results = ();	918	@INVOKE_RESULTS = ();
732		919
733	local $override;	920	local $override;
734		921
735	for (@$callbacks) {	922	for (@$callbacks) {
736	eval { &{$_->[1]} };	923	eval { &{$_->[1]} };
…		…
753		940
754	Generate an object-specific event with the given arguments.	941	Generate an object-specific event with the given arguments.
755		942
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	943	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	944	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	945	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		946
760	=back	947	=back
761		948
762	=cut	949	=cut
763		950
764	#############################################################################	951	#############################################################################
765	# object support	952	# object support
		953	#
		954
		955	sub _can_merge {
		956	my ($ob1, $ob2) = @_;
		957
		958	local $Storable::canonical = 1;
		959	my $fob1 = Storable::freeze $ob1;
		960	my $fob2 = Storable::freeze $ob2;
		961
		962	$fob1 eq $fob2
		963	}
766		964
767	sub reattach {	965	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	966	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	967	my ($obj) = @_;
770		968
…		…
814	},	1012	},
815	);	1013	);
816		1014
817	sub object_freezer_save {	1015	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1016	my ($filename, $rdata, $objs) = @_;
		1017
		1018	my $guard = cf::lock_acquire "io";
819		1019
820	sync_job {	1020	sync_job {
821	if (length $$rdata) {	1021	if (length $$rdata) {
822	warn sprintf "saving %s (%d,%d)\n",	1022	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1023	$filename, length $$rdata, scalar @$objs;
…		…
847	}	1047	}
848	} else {	1048	} else {
849	aio_unlink $filename;	1049	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1050	aio_unlink "$filename.pst";
851	}	1051	}
852	}	1052	};
		1053
		1054	undef $guard;
853	}	1055	}
854		1056
855	sub object_freezer_as_string {	1057	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1058	my ($rdata, $objs) = @_;
857		1059
…		…
862		1064
863	sub object_thawer_load {	1065	sub object_thawer_load {
864	my ($filename) = @_;	1066	my ($filename) = @_;
865		1067
866	my ($data, $av);	1068	my ($data, $av);
		1069
		1070	my $guard = cf::lock_acquire "io";
867		1071
868	(aio_load $filename, $data) >= 0	1072	(aio_load $filename, $data) >= 0
869	or return;	1073	or return;
870		1074
871	unless (aio_stat "$filename.pst") {	1075	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1076	(aio_load "$filename.pst", $av) >= 0
873	or return;	1077	or return;
		1078
		1079	undef $guard;
874	$av = eval { (Storable::thaw $av)->{objs} };	1080	$av = eval { (Storable::thaw $av)->{objs} };
875	}	1081	}
876		1082
877	warn sprintf "loading %s (%d)\n",	1083	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av || []};	1084	$filename, length $data, scalar @{$av || []};
		1085
879	return ($data, $av);	1086	($data, $av)
880	}	1087	}
		1088
		1089	=head2 COMMAND CALLBACKS
		1090
		1091	=over 4
		1092
		1093	=cut
881		1094
882	#############################################################################	1095	#############################################################################
883	# command handling &c	1096	# command handling &c
884		1097
885	=item cf::register_command $name => \&callback($ob,$args);	1098	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1111	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1112	}
900		1113
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1114	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1115
903	Register a callbackf ro execution when the client sends an extcmd packet.	1116	Register a callback for execution when the client sends an (synchronous)
		1117	extcmd packet. Ext commands will be processed in the order they are
		1118	received by the server, like other user commands. The first argument is
		1119	the logged-in player. Ext commands can only be processed after a player
		1120	has logged in successfully.
904		1121
905	If the callback returns something, it is sent back as if reply was being	1122	If the callback returns something, it is sent back as if reply was being
906	called.	1123	called.
907		1124
		1125	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1126
		1127	Register a callback for execution when the client sends an (asynchronous)
		1128	exticmd packet. Exti commands are processed by the server as soon as they
		1129	are received, i.e. out of order w.r.t. other commands. The first argument
		1130	is a client socket. Exti commands can be received anytime, even before
		1131	log-in.
		1132
		1133	If the callback returns something, it is sent back as if reply was being
		1134	called.
		1135
908	=cut	1136	=cut
909		1137
910	sub register_extcmd {	1138	sub register_extcmd {
911	my ($name, $cb) = @_;	1139	my ($name, $cb) = @_;
912		1140
913	$EXTCMD{$name} = $cb;	1141	$EXTCMD{$name} = $cb;
		1142	}
		1143
		1144	sub register_exticmd {
		1145	my ($name, $cb) = @_;
		1146
		1147	$EXTICMD{$name} = $cb;
914	}	1148	}
915		1149
916	cf::player->attach (	1150	cf::player->attach (
917	on_command => sub {	1151	on_command => sub {
918	my ($pl, $name, $params) = @_;	1152	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1161	cf::override;
928	},	1162	},
929	on_extcmd => sub {	1163	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1164	my ($pl, $buf) = @_;
931		1165
932	my $msg = eval { from_json $buf };	1166	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1167
934	if (ref $msg) {	1168	if (ref $msg) {
		1169	my ($type, $reply, @payload) =
		1170	"ARRAY" eq ref $msg
		1171	? @$msg
		1172	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1173
		1174	my @reply;
		1175
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1176	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1177	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1178	}
		1179
		1180	$pl->ext_reply ($reply, @reply)
		1181	if $reply;
		1182
940	} else {	1183	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1184	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1185	}
943		1186
944	cf::override;	1187	cf::override;
…		…
967	path => $path,	1210	path => $path,
968	base => $base,	1211	base => $base,
969	pkg => $pkg,	1212	pkg => $pkg,
970	);	1213	);
971		1214
972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }	1215	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
973	if $source =~ /^#!.*?perl.*?#\s*(.*)$/;	1216	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
974		1217
975	$ext{source} =	1218	$ext{source} =
976	"package $pkg; use strict; use utf8;\n"	1219	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	1220	. "#line 1 \"$path\"\n{\n"
978	. $source	1221	. $source
…		…
984	my %done;	1227	my %done;
985	while (%todo) {	1228	while (%todo) {
986	my $progress;	1229	my $progress;
987		1230
988	while (my ($k, $v) = each %todo) {	1231	while (my ($k, $v) = each %todo) {
989	for (split /,\s*/, $ext{meta}{depends}) {	1232	for (split /,\s*/, $v->{meta}{depends}) {
990	goto skip	1233	goto skip
991	unless exists $done{$_};	1234	unless exists $done{$_};
992	}	1235	}
993		1236
994	warn "... loading '$k' into '$v->{pkg}'\n";	1237	warn "... loading '$k' into '$v->{pkg}'\n";
995		1238
996	unless (eval $v->{source}) {	1239	unless (eval $v->{source}) {
997	my $msg = $@ ? "$v->{path}: $@\n"	1240	my $msg = $@ ? "$v->{path}: $@\n"
998	: "extension disabled.\n";	1241	: "$v->{base}: extension inactive.\n";
999		1242
1000	if (exists $v->{meta}{mandatory}) {	1243	if (exists $v->{meta}{mandatory}) {
1001	warn $msg;	1244	warn $msg;
1002	warn "mandatory extension failed to load, exiting.\n";	1245	warn "mandatory extension failed to load, exiting.\n";
1003	exit 1;	1246	exit 1;
1004	}	1247	}
1005		1248
1006	die $msg;	1249	warn $msg;
1007	}	1250	}
1008		1251
1009	$done{$k} = delete $todo{$k};	1252	$done{$k} = delete $todo{$k};
1010	push @EXTS, $v->{pkg};	1253	push @EXTS, $v->{pkg};
		1254	$progress = 1;
1011	}	1255	}
1012		1256
1013	skip:	1257	skip:
1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"	1258	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1015	unless $progress;	1259	unless $progress;
…		…
1017	};	1261	};
1018	}	1262	}
1019		1263
1020	#############################################################################	1264	#############################################################################
1021		1265
		1266	=back
		1267
1022	=head2 CORE EXTENSIONS	1268	=head2 CORE EXTENSIONS
1023		1269
1024	Functions and methods that extend core crossfire objects.	1270	Functions and methods that extend core crossfire objects.
1025		1271
1026	=cut	1272	=cut
…		…
1030	use Coro::AIO;	1276	use Coro::AIO;
1031		1277
1032	=head3 cf::player	1278	=head3 cf::player
1033		1279
1034	=over 4	1280	=over 4
		1281
		1282	=item cf::player::num_playing
		1283
		1284	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1285
		1286	=cut
		1287
		1288	sub num_playing {
		1289	scalar grep
		1290	$_->ob->map
		1291	&& !$_->hidden
		1292	&& !$_->ob->flag (cf::FLAG_WIZ),
		1293	cf::player::list
		1294	}
1035		1295
1036	=item cf::player::find $login	1296	=item cf::player::find $login
1037		1297
1038	Returns the given player object, loading it if necessary (might block).	1298	Returns the given player object, loading it if necessary (might block).
1039		1299
…		…
1075	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1076	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1077	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1078	aio_unlink +(playerdir $login) . "/$login.pl";	1338	aio_unlink +(playerdir $login) . "/$login.pl";
1079		1339
1080	my $pl = load_pl path $login	1340	my $f = new_from_file cf::object::thawer path $login
1081	or return;	1341	or return;
		1342
		1343	$f->next;
		1344	my $pl = cf::player::load_pl $f
		1345	or return;
		1346	local $cf::PLAYER_LOADING{$login} = $pl;
		1347	$f->resolve_delayed_derefs;
1082	$cf::PLAYER{$login} = $pl	1348	$cf::PLAYER{$login} = $pl
1083	}	1349	}
1084	}	1350	}
1085	}	1351	}
1086		1352
…		…
1096		1362
1097	aio_mkdir playerdir $pl, 0770;	1363	aio_mkdir playerdir $pl, 0770;
1098	$pl->{last_save} = $cf::RUNTIME;	1364	$pl->{last_save} = $cf::RUNTIME;
1099		1365
1100	$pl->save_pl ($path);	1366	$pl->save_pl ($path);
1101	Coro::cede;	1367	cf::cede_to_tick;
1102	}	1368	}
1103		1369
1104	sub new($) {	1370	sub new($) {
1105	my ($login) = @_;	1371	my ($login) = @_;
1106		1372
…		…
1110	$self->{deny_save} = 1;	1376	$self->{deny_save} = 1;
1111		1377
1112	$cf::PLAYER{$login} = $self;	1378	$cf::PLAYER{$login} = $self;
1113		1379
1114	$self	1380	$self
		1381	}
		1382
		1383	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1384
		1385	=cut
		1386
		1387	sub send_msg {
		1388	my $ns = shift->ns
		1389	or return;
		1390	$ns->send_msg (@_);
1115	}	1391	}
1116		1392
1117	=item $pl->quit_character	1393	=item $pl->quit_character
1118		1394
1119	Nukes the player without looking back. If logged in, the connection will	1395	Nukes the player without looking back. If logged in, the connection will
…		…
1174	or return [];	1450	or return [];
1175		1451
1176	my @logins;	1452	my @logins;
1177		1453
1178	for my $login (@$dirs) {	1454	for my $login (@$dirs) {
		1455	my $path = path $login;
		1456
		1457	# a .pst is a dead give-away for a valid player
		1458	unless (-e "$path.pst") {
1179	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1459	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1180	aio_read $fh, 0, 512, my $buf, 0 or next;	1460	aio_read $fh, 0, 512, my $buf, 0 or next;
1181	$buf !~ /^password -------------$/m or next; # official not-valid tag	1461	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1462	}
1182		1463
1183	utf8::decode $login;	1464	utf8::decode $login;
1184	push @logins, $login;	1465	push @logins, $login;
1185	}	1466	}
1186		1467
…		…
1213	}	1494	}
1214		1495
1215	\@paths	1496	\@paths
1216	}	1497	}
1217		1498
		1499	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1500
		1501	Expand crossfire pod fragments into protocol xml.
		1502
		1503	=cut
		1504
		1505	sub expand_cfpod {
		1506	((my $self), (local $_)) = @_;
		1507
		1508	# escape & and <
		1509	s/&/&amp;/g;
		1510	s/(?<![BIUGHT])</&lt;/g;
		1511
		1512	# this is buggy, it needs to properly take care of nested <'s
		1513
		1514	1 while
		1515	# replace B<>, I<>, U<> etc.
		1516	s/B<([^\>]*)>/<b>$1<\/b>/
		1517	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1518	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1519	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1520	# replace G<male|female> tags
		1521	|| s{G<([^>|]*)\|([^>]*)>}{
		1522	$self->gender ? $2 : $1
		1523	}ge
		1524	# replace H<hint text>
		1525	|| s{H<([^\>]*)>}
		1526	{
		1527	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1528	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1529	"")
		1530	[$self->{hintmode}]
		1531	}ge;
		1532
		1533	# create single paragraphs (very hackish)
		1534	s/(?<=\S)\n(?=\w)/ /g;
		1535
		1536	# compress some whitespace
		1537	s/\s+\n/\n/g; # ws line-ends
		1538	s/\n\n+/\n/g; # double lines
		1539	s/^\n+//; # beginning lines
		1540	s/\n+$//; # ending lines
		1541
		1542	$_
		1543	}
		1544
		1545	sub hintmode {
		1546	$_[0]{hintmode} = $_[1] if @_ > 1;
		1547	$_[0]{hintmode}
		1548	}
		1549
1218	=item $player->ext_reply ($msgid, %msg)	1550	=item $player->ext_reply ($msgid, @msg)
1219		1551
1220	Sends an ext reply to the player.	1552	Sends an ext reply to the player.
1221		1553
1222	=cut	1554	=cut
1223		1555
1224	sub ext_reply($$%) {	1556	sub ext_reply($$@) {
1225	my ($self, $id, %msg) = @_;	1557	my ($self, $id, @msg) = @_;
1226		1558
1227	$msg{msgid} = $id;	1559	$self->ns->ext_reply ($id, @msg)
1228
1229	$self->send ("ext " . cf::to_json \%msg);
1230	}	1560	}
1231		1561
1232	=item $player->ext_event ($type, %msg)	1562	=item $player->ext_msg ($type, @msg)
1233		1563
1234	Sends an ext event to the client.	1564	Sends an ext event to the client.
1235		1565
1236	=cut	1566	=cut
1237		1567
1238	sub ext_event($$%) {	1568	sub ext_msg($$@) {
1239	my ($self, $type, %msg) = @_;	1569	my ($self, $type, @msg) = @_;
1240		1570
1241	$self->ns->ext_event ($type, %msg);	1571	$self->ns->ext_msg ($type, @msg);
1242	}	1572	}
1243		1573
1244	=head3 cf::region	1574	=head3 cf::region
1245		1575
1246	=over 4	1576	=over 4
…		…
1249		1579
1250	package cf::region;	1580	package cf::region;
1251		1581
1252	=item cf::region::find_by_path $path	1582	=item cf::region::find_by_path $path
1253		1583
1254	Tries to decuce the probable region for a map knowing only its path.	1584	Tries to decuce the likely region for a map knowing only its path.
1255		1585
1256	=cut	1586	=cut
1257		1587
1258	sub find_by_path($) {	1588	sub find_by_path($) {
1259	my ($path) = @_;	1589	my ($path) = @_;
1260		1590
1261	my ($match, $specificity);	1591	my ($match, $specificity);
1262		1592
1263	for my $region (list) {	1593	for my $region (list) {
1264	if ($region->match && $path =~ $region->match) {	1594	if ($region->{match} && $path =~ $region->{match}) {
1265	($match, $specificity) = ($region, $region->specificity)	1595	($match, $specificity) = ($region, $region->specificity)
1266	if $region->specificity > $specificity;	1596	if $region->specificity > $specificity;
1267	}	1597	}
1268	}	1598	}
1269		1599
…		…
1389	$self->init; # pass $1 etc.	1719	$self->init; # pass $1 etc.
1390	return $self;	1720	return $self;
1391	}	1721	}
1392	}	1722	}
1393		1723
1394	Carp::carp "unable to resolve path '$path' (base '$base').";	1724	Carp::cluck "unable to resolve path '$path' (base '$base').";
1395	()	1725	()
1396	}	1726	}
1397		1727
1398	sub init {	1728	sub init {
1399	my ($self) = @_;	1729	my ($self) = @_;
…		…
1462		1792
1463	sub load_header_from($) {	1793	sub load_header_from($) {
1464	my ($self, $path) = @_;	1794	my ($self, $path) = @_;
1465		1795
1466	utf8::encode $path;	1796	utf8::encode $path;
1467	#aio_open $path, O_RDONLY, 0	1797	my $f = new_from_file cf::object::thawer $path
1468	# or return;
1469
1470	$self->_load_header ($path)
1471	or return;	1798	or return;
		1799
		1800	$self->_load_header ($f)
		1801	or return;
		1802
		1803	local $MAP_LOADING{$self->{path}} = $self;
		1804	$f->resolve_delayed_derefs;
1472		1805
1473	$self->{load_path} = $path;	1806	$self->{load_path} = $path;
1474		1807
1475	1	1808	1
1476	}	1809	}
…		…
1530	sub find {	1863	sub find {
1531	my ($path, $origin) = @_;	1864	my ($path, $origin) = @_;
1532		1865
1533	$path = normalise $path, $origin && $origin->path;	1866	$path = normalise $path, $origin && $origin->path;
1534		1867
		1868	cf::lock_wait "map_data:$path";#d#remove
1535	cf::lock_wait "map_find:$path";	1869	cf::lock_wait "map_find:$path";
1536		1870
1537	$cf::MAP{$path} || do {	1871	$cf::MAP{$path} || do {
1538	my $guard = cf::lock_acquire "map_find:$path";	1872	my $guard1 = cf::lock_acquire "map_find:$path";
		1873	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1874
1539	my $map = new_from_path cf::map $path	1875	my $map = new_from_path cf::map $path
1540	or return;	1876	or return;
1541		1877
1542	$map->{last_save} = $cf::RUNTIME;	1878	$map->{last_save} = $cf::RUNTIME;
1543		1879
…		…
1545	or return;	1881	or return;
1546		1882
1547	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)	1883	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1548	# doing this can freeze the server in a sync job, obviously	1884	# doing this can freeze the server in a sync job, obviously
1549	#$cf::WAIT_FOR_TICK->wait;	1885	#$cf::WAIT_FOR_TICK->wait;
		1886	undef $guard1;
		1887	undef $guard2;
1550	$map->reset;	1888	$map->reset;
1551	undef $guard;
1552	return find $path;	1889	return find $path;
1553	}	1890	}
1554		1891
1555	$cf::MAP{$path} = $map	1892	$cf::MAP{$path} = $map
1556	}	1893	}
…		…
1565	local $self->{deny_reset} = 1; # loading can take a long time	1902	local $self->{deny_reset} = 1; # loading can take a long time
1566		1903
1567	my $path = $self->{path};	1904	my $path = $self->{path};
1568		1905
1569	{	1906	{
1570	my $guard = cf::lock_acquire "map_load:$path";	1907	my $guard = cf::lock_acquire "map_data:$path";
1571		1908
		1909	return unless $self->valid;
1572	return if $self->in_memory != cf::MAP_SWAPPED;	1910	return unless $self->in_memory == cf::MAP_SWAPPED;
1573		1911
1574	$self->in_memory (cf::MAP_LOADING);	1912	$self->in_memory (cf::MAP_LOADING);
1575		1913
1576	$self->alloc;	1914	$self->alloc;
1577		1915
1578	$self->pre_load;	1916	$self->pre_load;
1579	Coro::cede;	1917	cf::cede_to_tick;
1580		1918
		1919	my $f = new_from_file cf::object::thawer $self->{load_path};
		1920	$f->skip_block;
1581	$self->_load_objects ($self->{load_path}, 1)	1921	$self->_load_objects ($f)
1582	or return;	1922	or return;
1583		1923
1584	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1924	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1585	if delete $self->{load_original};	1925	if delete $self->{load_original};
1586		1926
1587	if (my $uniq = $self->uniq_path) {	1927	if (my $uniq = $self->uniq_path) {
1588	utf8::encode $uniq;	1928	utf8::encode $uniq;
1589	if (aio_open $uniq, O_RDONLY, 0) {	1929	unless (aio_stat $uniq) {
		1930	if (my $f = new_from_file cf::object::thawer $uniq) {
1590	$self->clear_unique_items;	1931	$self->clear_unique_items;
1591	$self->_load_objects ($uniq, 0);	1932	$self->_load_objects ($f);
		1933	$f->resolve_delayed_derefs;
		1934	}
1592	}	1935	}
1593	}	1936	}
1594		1937
1595	Coro::cede;	1938	$f->resolve_delayed_derefs;
		1939
		1940	cf::cede_to_tick;
1596	# now do the right thing for maps	1941	# now do the right thing for maps
1597	$self->link_multipart_objects;	1942	$self->link_multipart_objects;
1598	$self->difficulty ($self->estimate_difficulty)	1943	$self->difficulty ($self->estimate_difficulty)
1599	unless $self->difficulty;	1944	unless $self->difficulty;
1600	Coro::cede;	1945	cf::cede_to_tick;
1601		1946
1602	unless ($self->{deny_activate}) {	1947	unless ($self->{deny_activate}) {
1603	$self->decay_objects;	1948	$self->decay_objects;
1604	$self->fix_auto_apply;	1949	$self->fix_auto_apply;
1605	$self->update_buttons;	1950	$self->update_buttons;
1606	Coro::cede;	1951	cf::cede_to_tick;
1607	$self->set_darkness_map;	1952	$self->set_darkness_map;
1608	Coro::cede;	1953	cf::cede_to_tick;
1609	$self->activate;	1954	$self->activate;
1610	}	1955	}
		1956
		1957	$self->{last_save} = $cf::RUNTIME;
		1958	$self->last_access ($cf::RUNTIME);
1611		1959
1612	$self->in_memory (cf::MAP_IN_MEMORY);	1960	$self->in_memory (cf::MAP_IN_MEMORY);
1613	}	1961	}
1614		1962
1615	$self->post_load;	1963	$self->post_load;
…		…
1626		1974
1627	$self	1975	$self
1628	}	1976	}
1629		1977
1630	# find and load all maps in the 3x3 area around a map	1978	# find and load all maps in the 3x3 area around a map
1631	sub load_diag {	1979	sub load_neighbours {
1632	my ($map) = @_;	1980	my ($map) = @_;
1633		1981
1634	my @diag; # diagonal neighbours	1982	my @neigh; # diagonal neighbours
1635		1983
1636	for (0 .. 3) {	1984	for (0 .. 3) {
1637	my $neigh = $map->tile_path ($_)	1985	my $neigh = $map->tile_path ($_)
1638	or next;	1986	or next;
1639	$neigh = find $neigh, $map	1987	$neigh = find $neigh, $map
1640	or next;	1988	or next;
1641	$neigh->load;	1989	$neigh->load;
1642		1990
		1991	push @neigh,
1643	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1992	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1644	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1993	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1645	}	1994	}
1646		1995
1647	for (@diag) {	1996	for (grep defined $_->[0], @neigh) {
		1997	my ($path, $origin) = @$_;
1648	my $neigh = find @$_	1998	my $neigh = find $path, $origin
1649	or next;	1999	or next;
1650	$neigh->load;	2000	$neigh->load;
1651	}	2001	}
1652	}	2002	}
1653		2003
…		…
1658	}	2008	}
1659		2009
1660	sub do_load_sync {	2010	sub do_load_sync {
1661	my ($map) = @_;	2011	my ($map) = @_;
1662		2012
		2013	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2014	if $Coro::current == $Coro::main;
		2015
1663	cf::sync_job { $map->load };	2016	cf::sync_job { $map->load };
1664	}	2017	}
1665		2018
1666	our %MAP_PREFETCH;	2019	our %MAP_PREFETCH;
1667	our $MAP_PREFETCHER = undef;	2020	our $MAP_PREFETCHER = undef;
1668		2021
1669	sub find_async {	2022	sub find_async {
1670	my ($path, $origin) = @_;	2023	my ($path, $origin, $load) = @_;
1671		2024
1672	$path = normalise $path, $origin && $origin->{path};	2025	$path = normalise $path, $origin && $origin->{path};
1673		2026
1674	if (my $map = $cf::MAP{$path}) {	2027	if (my $map = $cf::MAP{$path}) {
1675	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2028	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1676	}	2029	}
1677		2030
1678	undef $MAP_PREFETCH{$path};	2031	$MAP_PREFETCH{$path} |= $load;
		2032
1679	$MAP_PREFETCHER ||= cf::async {	2033	$MAP_PREFETCHER ||= cf::async {
1680	while (%MAP_PREFETCH) {	2034	while (%MAP_PREFETCH) {
1681	for my $path (keys %MAP_PREFETCH) {	2035	while (my ($k, $v) = each %MAP_PREFETCH) {
1682	my $map = find $path	2036	if (my $map = find $k) {
1683	or next;
1684	$map->load;	2037	$map->load if $v;
		2038	}
1685		2039
1686	delete $MAP_PREFETCH{$path};	2040	delete $MAP_PREFETCH{$k};
1687	}	2041	}
1688	}	2042	}
1689	undef $MAP_PREFETCHER;	2043	undef $MAP_PREFETCHER;
1690	};	2044	};
1691	$MAP_PREFETCHER->prio (6);	2045	$MAP_PREFETCHER->prio (6);
…		…
1694	}	2048	}
1695		2049
1696	sub save {	2050	sub save {
1697	my ($self) = @_;	2051	my ($self) = @_;
1698		2052
1699	my $lock = cf::lock_acquire "map_data:" . $self->path;	2053	my $lock = cf::lock_acquire "map_data:$self->{path}";
1700		2054
1701	$self->{last_save} = $cf::RUNTIME;	2055	$self->{last_save} = $cf::RUNTIME;
1702		2056
1703	return unless $self->dirty;	2057	return unless $self->dirty;
1704		2058
…		…
1727	my ($self) = @_;	2081	my ($self) = @_;
1728		2082
1729	# save first because save cedes	2083	# save first because save cedes
1730	$self->save;	2084	$self->save;
1731		2085
1732	my $lock = cf::lock_acquire "map_data:" . $self->path;	2086	my $lock = cf::lock_acquire "map_data:$self->{path}";
1733		2087
1734	return if $self->players;	2088	return if $self->players;
1735	return if $self->in_memory != cf::MAP_IN_MEMORY;	2089	return if $self->in_memory != cf::MAP_IN_MEMORY;
1736	return if $self->{deny_save};	2090	return if $self->{deny_save};
1737		2091
		2092	$self->in_memory (cf::MAP_SWAPPED);
		2093
		2094	$self->deactivate;
		2095	$_->clear_links_to ($self) for values %cf::MAP;
1738	$self->clear;	2096	$self->clear;
1739	$self->in_memory (cf::MAP_SWAPPED);
1740	}	2097	}
1741		2098
1742	sub reset_at {	2099	sub reset_at {
1743	my ($self) = @_;	2100	my ($self) = @_;
1744		2101
…		…
1776	if $uniq;	2133	if $uniq;
1777	}	2134	}
1778		2135
1779	delete $cf::MAP{$self->path};	2136	delete $cf::MAP{$self->path};
1780		2137
		2138	$self->deactivate;
		2139	$_->clear_links_to ($self) for values %cf::MAP;
1781	$self->clear;	2140	$self->clear;
1782
1783	$_->clear_links_to ($self) for values %cf::MAP;
1784		2141
1785	$self->unlink_save;	2142	$self->unlink_save;
1786	$self->destroy;	2143	$self->destroy;
1787	}	2144	}
1788		2145
1789	my $nuke_counter = "aaaa";	2146	my $nuke_counter = "aaaa";
1790		2147
1791	sub nuke {	2148	sub nuke {
1792	my ($self) = @_;	2149	my ($self) = @_;
1793		2150
		2151	{
		2152	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2153
1794	delete $cf::MAP{$self->path};	2154	delete $cf::MAP{$self->path};
1795		2155
1796	$self->unlink_save;	2156	$self->unlink_save;
1797		2157
1798	bless $self, "cf::map";	2158	bless $self, "cf::map";
1799	delete $self->{deny_reset};	2159	delete $self->{deny_reset};
1800	$self->{deny_save} = 1;	2160	$self->{deny_save} = 1;
1801	$self->reset_timeout (1);	2161	$self->reset_timeout (1);
1802	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2162	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1803		2163
1804	$cf::MAP{$self->path} = $self;	2164	$cf::MAP{$self->path} = $self;
		2165	}
1805		2166
1806	$self->reset; # polite request, might not happen	2167	$self->reset; # polite request, might not happen
1807	}	2168	}
1808		2169
1809	=item $maps = cf::map::tmp_maps	2170	=item $maps = cf::map::tmp_maps
…		…
1885		2246
1886	sub inv_recursive {	2247	sub inv_recursive {
1887	inv_recursive_ inv $_[0]	2248	inv_recursive_ inv $_[0]
1888	}	2249	}
1889		2250
		2251	=item $ref = $ob->ref
		2252
		2253	creates and returns a persistent reference to an objetc that can be stored as a string.
		2254
		2255	=item $ob = cf::object::deref ($refstring)
		2256
		2257	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2258	even if the object actually exists. May block.
		2259
		2260	=cut
		2261
		2262	sub deref {
		2263	my ($ref) = @_;
		2264
		2265	# temporary compatibility#TODO#remove
		2266	$ref =~ s{^<}{player/<};
		2267
		2268	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2269	my ($uuid, $name) = ($1, $2);
		2270	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2271	or return;
		2272	$pl->ob->uuid eq $uuid
		2273	or return;
		2274
		2275	$pl->ob
		2276	} else {
		2277	warn "$ref: cannot resolve object reference\n";
		2278	undef
		2279	}
		2280	}
		2281
1890	package cf;	2282	package cf;
1891		2283
1892	=back	2284	=back
1893		2285
1894	=head3 cf::object::player	2286	=head3 cf::object::player
…		…
1911		2303
1912	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2304	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1913		2305
1914	if ($self->{record_replies}) {	2306	if ($self->{record_replies}) {
1915	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2307	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2308
1916	} else {	2309	} else {
		2310	my $pl = $self->contr;
		2311
		2312	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2313	my $dialog = $pl->{npc_dialog};
		2314	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2315
		2316	} else {
1917	$msg = $npc->name . " says: $msg" if $npc;	2317	$msg = $npc->name . " says: $msg" if $npc;
1918	$self->message ($msg, $flags);	2318	$self->message ($msg, $flags);
		2319	}
1919	}	2320	}
		2321	}
		2322
		2323	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2324
		2325	=cut
		2326
		2327	sub cf::object::send_msg {
		2328	my $pl = shift->contr
		2329	or return;
		2330	$pl->send_msg (@_);
1920	}	2331	}
1921		2332
1922	=item $player_object->may ("access")	2333	=item $player_object->may ("access")
1923		2334
1924	Returns wether the given player is authorized to access resource "access"	2335	Returns wether the given player is authorized to access resource "access"
…		…
2003	# use -1 or undef as default coordinates, not 0, 0	2414	# use -1 or undef as default coordinates, not 0, 0
2004	($x, $y) = ($map->enter_x, $map->enter_y)	2415	($x, $y) = ($map->enter_x, $map->enter_y)
2005	if $x <=0 && $y <= 0;	2416	if $x <=0 && $y <= 0;
2006		2417
2007	$map->load;	2418	$map->load;
2008	$map->load_diag;	2419	$map->load_neighbours;
2009		2420
2010	return unless $self->contr->active;	2421	return unless $self->contr->active;
2011	$self->activate_recursive;	2422	$self->activate_recursive;
2012		2423
2013	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2424	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2014	$self->enter_map ($map, $x, $y);	2425	$self->enter_map ($map, $x, $y);
2015	}	2426	}
2016		2427
2017	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2428	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
2018		2429
2019	Moves the player to the given map-path and coordinates by first freezing	2430	Moves the player to the given map-path and coordinates by first freezing
2020	her, loading and preparing them map, calling the provided $check callback	2431	her, loading and preparing them map, calling the provided $check callback
2021	that has to return the map if sucecssful, and then unfreezes the player on	2432	that has to return the map if sucecssful, and then unfreezes the player on
2022	the new (success) or old (failed) map position.	2433	the new (success) or old (failed) map position. In either case, $done will
		2434	be called at the end of this process.
2023		2435
2024	=cut	2436	=cut
2025		2437
2026	our $GOTOGEN;	2438	our $GOTOGEN;
2027		2439
2028	sub cf::object::player::goto {	2440	sub cf::object::player::goto {
2029	my ($self, $path, $x, $y, $check) = @_;	2441	my ($self, $path, $x, $y, $check, $done) = @_;
2030		2442
2031	# do generation counting so two concurrent goto's will be executed in-order	2443	# do generation counting so two concurrent goto's will be executed in-order
2032	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2444	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2033		2445
2034	$self->enter_link;	2446	$self->enter_link;
…		…
2054		2466
2055	if ($gen == $self->{_goto_generation}) {	2467	if ($gen == $self->{_goto_generation}) {
2056	delete $self->{_goto_generation};	2468	delete $self->{_goto_generation};
2057	$self->leave_link ($map, $x, $y);	2469	$self->leave_link ($map, $x, $y);
2058	}	2470	}
		2471
		2472	$done->() if $done;
2059	})->prio (1);	2473	})->prio (1);
2060	}	2474	}
2061		2475
2062	=item $player_object->enter_exit ($exit_object)	2476	=item $player_object->enter_exit ($exit_object)
2063		2477
…		…
2132	my $hp = $exit->stats->hp;	2546	my $hp = $exit->stats->hp;
2133	my $sp = $exit->stats->sp;	2547	my $sp = $exit->stats->sp;
2134		2548
2135	$self->enter_link;	2549	$self->enter_link;
2136		2550
		2551	# if exit is damned, update players death & WoR home-position
		2552	$self->contr->savebed ($slaying, $hp, $sp)
		2553	if $exit->flag (FLAG_DAMNED);
		2554
2137	(async {	2555	(async {
2138	$self->deactivate_recursive; # just to be sure	2556	$self->deactivate_recursive; # just to be sure
2139	unless (eval {	2557	unless (eval {
2140	$self->goto ($slaying, $hp, $sp);	2558	$self->goto ($slaying, $hp, $sp);
2141		2559
…		…
2168		2586
2169	utf8::encode $text;	2587	utf8::encode $text;
2170	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2588	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2171	}	2589	}
2172		2590
		2591	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2592
		2593	Send a drawinfo or msg packet to the client, formatting the msg for the
		2594	client if neccessary. C<$type> should be a string identifying the type of
		2595	the message, with C<log> being the default. If C<$color> is negative, suppress
		2596	the message unless the client supports the msg packet.
		2597
		2598	=cut
		2599
		2600	our %CHANNEL = (
		2601	"c/identify" => {
		2602	id => "identify",
		2603	title => "Identify",
		2604	reply => undef,
		2605	tooltip => "Items recently identified",
		2606	},
		2607	"c/examine" => {
		2608	id => "examine",
		2609	title => "Examine",
		2610	reply => undef,
		2611	tooltip => "Signs and other items you examined",
		2612	},
		2613	);
		2614
		2615	sub cf::client::send_msg {
		2616	my ($self, $channel, $msg, $color, @extra) = @_;
		2617
		2618	$msg = $self->pl->expand_cfpod ($msg);
		2619
		2620	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2621
		2622	# check predefined channels, for the benefit of C
		2623	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2624
		2625	if (ref $channel) {
		2626	# send meta info to client, if not yet sent
		2627	unless (exists $self->{channel}{$channel->{id}}) {
		2628	$self->{channel}{$channel->{id}} = $channel;
		2629	$self->ext_msg (channel_info => $channel)
		2630	if $self->can_msg;
		2631	}
		2632
		2633	$channel = $channel->{id};
		2634	}
		2635
		2636	return unless @extra || length $msg;
		2637
		2638	if ($self->can_msg) {
		2639	# default colour, mask it out
		2640	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2641	if $color & cf::NDI_DEF;
		2642
		2643	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2644	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2645	} else {
		2646	if ($color >= 0) {
		2647	# replace some tags by gcfclient-compatible ones
		2648	for ($msg) {
		2649	1 while
		2650	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2651	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2652	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2653	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2654	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2655	}
		2656
		2657	$color &= cf::NDI_COLOR_MASK;
		2658
		2659	utf8::encode $msg;
		2660
		2661	if (0 && $msg =~ /\[/) {
		2662	# COMMAND/INFO
		2663	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2664	} else {
		2665	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2666	$self->send_packet ("drawinfo $color $msg")
		2667	}
		2668	}
		2669	}
		2670	}
		2671
2173	=item $client->ext_event ($type, %msg)	2672	=item $client->ext_msg ($type, @msg)
2174		2673
2175	Sends an exti event to the client.	2674	Sends an ext event to the client.
2176		2675
2177	=cut	2676	=cut
2178		2677
2179	sub cf::client::ext_event($$%) {	2678	sub cf::client::ext_msg($$@) {
2180	my ($self, $type, %msg) = @_;	2679	my ($self, $type, @msg) = @_;
2181		2680
		2681	if ($self->extcmd == 2) {
		2682	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2683	} elsif ($self->extcmd == 1) { # TODO: remove
2182	$msg{msgtype} = "event_$type";	2684	push @msg, msgtype => "event_$type";
2183	$self->send_packet ("ext " . cf::to_json \%msg);	2685	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2686	}
		2687	}
		2688
		2689	=item $client->ext_reply ($msgid, @msg)
		2690
		2691	Sends an ext reply to the client.
		2692
		2693	=cut
		2694
		2695	sub cf::client::ext_reply($$@) {
		2696	my ($self, $id, @msg) = @_;
		2697
		2698	if ($self->extcmd == 2) {
		2699	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2700	} elsif ($self->extcmd == 1) {
		2701	#TODO: version 1, remove
		2702	unshift @msg, msgtype => "reply", msgid => $id;
		2703	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2704	}
2184	}	2705	}
2185		2706
2186	=item $success = $client->query ($flags, "text", \&cb)	2707	=item $success = $client->query ($flags, "text", \&cb)
2187		2708
2188	Queues a query to the client, calling the given callback with	2709	Queues a query to the client, calling the given callback with
2189	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2710	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2190	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2711	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2191		2712
2192	Queries can fail, so check the return code. Or don't, as queries will become	2713	Queries can fail, so check the return code. Or don't, as queries will
2193	reliable at some point in the future.	2714	become reliable at some point in the future.
2194		2715
2195	=cut	2716	=cut
2196		2717
2197	sub cf::client::query {	2718	sub cf::client::query {
2198	my ($self, $flags, $text, $cb) = @_;	2719	my ($self, $flags, $text, $cb) = @_;
…		…
2206	utf8::encode $text;	2727	utf8::encode $text;
2207	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2728	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2208		2729
2209	$self->send_packet ($self->{query_queue}[0][0])	2730	$self->send_packet ($self->{query_queue}[0][0])
2210	if @{ $self->{query_queue} } == 1;	2731	if @{ $self->{query_queue} } == 1;
		2732
		2733	1
2211	}	2734	}
2212		2735
2213	cf::client->attach (	2736	cf::client->attach (
		2737	on_connect => sub {
		2738	my ($ns) = @_;
		2739
		2740	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2741	},
2214	on_reply => sub {	2742	on_reply => sub {
2215	my ($ns, $msg) = @_;	2743	my ($ns, $msg) = @_;
2216		2744
2217	# this weird shuffling is so that direct followup queries	2745	# this weird shuffling is so that direct followup queries
2218	# get handled first	2746	# get handled first
…		…
2230	} else {	2758	} else {
2231	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2759	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2232	}	2760	}
2233	}	2761	}
2234	},	2762	},
		2763	on_exticmd => sub {
		2764	my ($ns, $buf) = @_;
		2765
		2766	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2767
		2768	if (ref $msg) {
		2769	my ($type, $reply, @payload) =
		2770	"ARRAY" eq ref $msg
		2771	? @$msg
		2772	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2773
		2774	my @reply;
		2775
		2776	if (my $cb = $EXTICMD{$type}) {
		2777	@reply = $cb->($ns, @payload);
		2778	}
		2779
		2780	$ns->ext_reply ($reply, @reply)
		2781	if $reply;
		2782
		2783	} else {
		2784	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2785	}
		2786
		2787	cf::override;
		2788	},
2235	);	2789	);
2236		2790
2237	=item $client->async (\&cb)	2791	=item $client->async (\&cb)
2238		2792
2239	Create a new coroutine, running the specified callback. The coroutine will	2793	Create a new coroutine, running the specified callback. The coroutine will
…		…
2280	our $safe = new Safe "safe";	2834	our $safe = new Safe "safe";
2281	our $safe_hole = new Safe::Hole;	2835	our $safe_hole = new Safe::Hole;
2282		2836
2283	$SIG{FPE} = 'IGNORE';	2837	$SIG{FPE} = 'IGNORE';
2284		2838
2285	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2839	$safe->permit_only (Opcode::opset qw(
		2840	:base_core :base_mem :base_orig :base_math
		2841	grepstart grepwhile mapstart mapwhile
		2842	sort time
		2843	));
2286		2844
2287	# here we export the classes and methods available to script code	2845	# here we export the classes and methods available to script code
2288		2846
2289	=pod	2847	=pod
2290		2848
2291	The following functions and methods are available within a safe environment:	2849	The following functions and methods are available within a safe environment:
2292		2850
2293	cf::object contr pay_amount pay_player map	2851	cf::object
		2852	contr pay_amount pay_player map x y force_find force_add
		2853	insert remove name archname title slaying race decrease_ob_nr
		2854
2294	cf::object::player player	2855	cf::object::player
2295	cf::player peaceful	2856	player
2296	cf::map trigger	2857
		2858	cf::player
		2859	peaceful
		2860
		2861	cf::map
		2862	trigger
2297		2863
2298	=cut	2864	=cut
2299		2865
2300	for (	2866	for (
2301	["cf::object" => qw(contr pay_amount pay_player map)],	2867	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2868	insert remove inv name archname title slaying race
		2869	decrease_ob_nr)],
2302	["cf::object::player" => qw(player)],	2870	["cf::object::player" => qw(player)],
2303	["cf::player" => qw(peaceful)],	2871	["cf::player" => qw(peaceful)],
2304	["cf::map" => qw(trigger)],	2872	["cf::map" => qw(trigger)],
2305	) {	2873	) {
2306	no strict 'refs';	2874	no strict 'refs';
…		…
2377	=back	2945	=back
2378		2946
2379	=cut	2947	=cut
2380		2948
2381	#############################################################################	2949	#############################################################################
2382
2383	=head2 EXTENSION DATABASE SUPPORT
2384
2385	Crossfire maintains a very simple database for extension use. It can
2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2387	convert to/from binary).
2388
2389	The parameter C<$family> should best start with the name of the extension
2390	using it, it should be unique.
2391
2392	=over 4
2393
2394	=item $value = cf::db_get $family => $key
2395
2396	Returns a single value from the database.
2397
2398	=item cf::db_put $family => $key => $value
2399
2400	Stores the given C<$value> in the family.
2401
2402	=cut
2403
2404	our $DB;
2405
2406	sub db_init {
2407	unless ($DB) {
2408	$DB = BDB::db_create $DB_ENV;
2409
2410	cf::sync_job {
2411	eval {
2412	$DB->set_flags (BDB::CHKSUM);
2413
2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2415	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2416	cf::cleanup "db_open(db): $!" if $!;
2417	};
2418	cf::cleanup "db_open(db): $@" if $@;
2419	};
2420	}
2421	}
2422
2423	sub db_get($$) {
2424	my $key = "$_[0]/$_[1]";
2425
2426	cf::sync_job {
2427	BDB::db_get $DB, undef, $key, my $data;
2428
2429	$! ? ()
2430	: $data
2431	}
2432	}
2433
2434	sub db_put($$$) {
2435	BDB::dbreq_pri 4;
2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2437	}
2438
2439	=item cf::cache $id => [$paths...], $processversion => $process
2440
2441	Generic caching function that returns the value of the resource $id,
2442	caching and regenerating as required.
2443
2444	This function can block.
2445
2446	=cut
2447
2448	sub cache {
2449	my ($id, $src, $processversion, $process) = @_;
2450
2451	my $meta =
2452	join "\x00",
2453	$processversion,
2454	map {
2455	aio_stat $_
2456	and Carp::croak "$_: $!";
2457
2458	($_, (stat _)[7,9])
2459	} @$src;
2460
2461	my $dbmeta = db_get cache => "$id/meta";
2462	if ($dbmeta ne $meta) {
2463	# changed, we may need to process
2464
2465	my @data;
2466	my $md5;
2467
2468	for (0 .. $#$src) {
2469	0 <= aio_load $src->[$_], $data[$_]
2470	or Carp::croak "$src->[$_]: $!";
2471	}
2472
2473	# if processing is expensive, check
2474	# checksum first
2475	if (1) {
2476	$md5 =
2477	join "\x00",
2478	$processversion,
2479	map {
2480	Coro::cede;
2481	($src->[$_], Digest::MD5::md5_hex $data[$_])
2482	} 0.. $#$src;
2483
2484
2485	my $dbmd5 = db_get cache => "$id/md5";
2486	if ($dbmd5 eq $md5) {
2487	db_put cache => "$id/meta", $meta;
2488
2489	return db_get cache => "$id/data";
2490	}
2491	}
2492
2493	my $t1 = Time::HiRes::time;
2494	my $data = $process->(\@data);
2495	my $t2 = Time::HiRes::time;
2496
2497	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2498
2499	db_put cache => "$id/data", $data;
2500	db_put cache => "$id/md5" , $md5;
2501	db_put cache => "$id/meta", $meta;
2502
2503	return $data;
2504	}
2505
2506	db_get cache => "$id/data"
2507	}
2508
2509	=item fork_call { }, $args
2510
2511	Executes the given code block with the given arguments in a seperate
2512	process, returning the results. Everything must be serialisable with
2513	Coro::Storable. May, of course, block. Note that the executed sub may
2514	never block itself or use any form of Event handling.
2515
2516	=cut
2517
2518	sub fork_call(&@) {
2519	my ($cb, @args) = @_;
2520
2521	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2522	# or die "socketpair: $!";
2523	pipe my $fh1, my $fh2
2524	or die "pipe: $!";
2525
2526	if (my $pid = fork) {
2527	close $fh2;
2528
2529	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2530	$res = Coro::Storable::thaw $res;
2531
2532	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2533
2534	die $$res unless "ARRAY" eq ref $res;
2535
2536	return wantarray ? @$res : $res->[-1];
2537	} else {
2538	reset_signals;
2539	local $SIG{__WARN__};
2540	local $SIG{__DIE__};
2541	eval {
2542	close $fh1;
2543
2544	my @res = eval { $cb->(@args) };
2545	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2546	};
2547
2548	warn $@ if $@;
2549	_exit 0;
2550	}
2551	}
2552
2553	#############################################################################
2554	# the server's init and main functions	2950	# the server's init and main functions
2555		2951
2556	sub load_facedata($) {	2952	sub load_facedata($) {
2557	my ($path) = @_;	2953	my ($path) = @_;
		2954
		2955	# HACK to clear player env face cache, we need some signal framework
		2956	# for this (global event?)
		2957	%ext::player_env::MUSIC_FACE_CACHE = ();
		2958
		2959	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2558		2960
2559	warn "loading facedata from $path\n";	2961	warn "loading facedata from $path\n";
2560		2962
2561	my $facedata;	2963	my $facedata;
2562	0 < aio_load $path, $facedata	2964	0 < aio_load $path, $facedata
…		…
2565	$facedata = Coro::Storable::thaw $facedata;	2967	$facedata = Coro::Storable::thaw $facedata;
2566		2968
2567	$facedata->{version} == 2	2969	$facedata->{version} == 2
2568	or cf::cleanup "$path: version mismatch, cannot proceed.";	2970	or cf::cleanup "$path: version mismatch, cannot proceed.";
2569		2971
		2972	# patch in the exptable
		2973	$facedata->{resource}{"res/exp_table"} = {
		2974	type => FT_RSRC,
		2975	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		2976	};
		2977	cf::cede_to_tick;
		2978
2570	{	2979	{
2571	my $faces = $facedata->{faceinfo};	2980	my $faces = $facedata->{faceinfo};
2572		2981
2573	while (my ($face, $info) = each %$faces) {	2982	while (my ($face, $info) = each %$faces) {
2574	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2983	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2575	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2984	cf::face::set_visibility $idx, $info->{visibility};
		2985	cf::face::set_magicmap $idx, $info->{magicmap};
2576	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2986	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2577	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2987	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2578	Coro::cede;	2988
		2989	cf::cede_to_tick;
2579	}	2990	}
2580		2991
2581	while (my ($face, $info) = each %$faces) {	2992	while (my ($face, $info) = each %$faces) {
2582	next unless $info->{smooth};	2993	next unless $info->{smooth};
2583	my $idx = cf::face::find $face	2994	my $idx = cf::face::find $face
2584	or next;	2995	or next;
2585	if (my $smooth = cf::face::find $info->{smooth}) {	2996	if (my $smooth = cf::face::find $info->{smooth}) {
		2997	cf::face::set_smooth $idx, $smooth;
2586	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2998	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2587	} else {	2999	} else {
2588	warn "smooth face '$info->{smooth}' not found for face '$face'";	3000	warn "smooth face '$info->{smooth}' not found for face '$face'";
2589	}	3001	}
2590	Coro::cede;	3002
		3003	cf::cede_to_tick;
2591	}	3004	}
2592	}	3005	}
2593		3006
2594	{	3007	{
2595	my $anims = $facedata->{animinfo};	3008	my $anims = $facedata->{animinfo};
2596		3009
2597	while (my ($anim, $info) = each %$anims) {	3010	while (my ($anim, $info) = each %$anims) {
2598	cf::anim::set $anim, $info->{frames}, $info->{facings};	3011	cf::anim::set $anim, $info->{frames}, $info->{facings};
2599	Coro::cede;	3012	cf::cede_to_tick;
2600	}	3013	}
2601		3014
2602	cf::anim::invalidate_all; # d'oh	3015	cf::anim::invalidate_all; # d'oh
2603	}	3016	}
2604		3017
		3018	{
		3019	# TODO: for gcfclient pleasure, we should give resources
		3020	# that gcfclient doesn't grok a >10000 face index.
		3021	my $res = $facedata->{resource};
		3022
		3023	my $soundconf = delete $res->{"res/sound.conf"};
		3024
		3025	while (my ($name, $info) = each %$res) {
		3026	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3027	my $data;
		3028
		3029	if ($info->{type} & 1) {
		3030	# prepend meta info
		3031
		3032	my $meta = $enc->encode ({
		3033	name => $name,
		3034	%{ $info->{meta} || {} },
		3035	});
		3036
		3037	$data = pack "(w/a*)*", $meta, $info->{data};
		3038	} else {
		3039	$data = $info->{data};
		3040	}
		3041
		3042	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3043	cf::face::set_type $idx, $info->{type};
		3044
		3045	cf::cede_to_tick;
		3046	}
		3047
		3048	if ($soundconf) {
		3049	$soundconf = $enc->decode (delete $soundconf->{data});
		3050
		3051	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3052	my $sound = $soundconf->{compat}[$_]
		3053	or next;
		3054
		3055	my $face = cf::face::find "sound/$sound->[1]";
		3056	cf::sound::set $sound->[0] => $face;
		3057	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3058	}
		3059
		3060	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3061	my $face = cf::face::find "sound/$v";
		3062	cf::sound::set $k => $face;
		3063	}
		3064	}
		3065	}
		3066
2605	1	3067	1
2606	}	3068	}
2607		3069
		3070	register_exticmd fx_want => sub {
		3071	my ($ns, $want) = @_;
		3072
		3073	while (my ($k, $v) = each %$want) {
		3074	$ns->fx_want ($k, $v);
		3075	}
		3076	};
		3077
2608	sub reload_regions {	3078	sub reload_regions {
		3079	# HACK to clear player env face cache, we need some signal framework
		3080	# for this (global event?)
		3081	%ext::player_env::MUSIC_FACE_CACHE = ();
		3082
2609	load_resource_file "$MAPDIR/regions"	3083	load_resource_file "$MAPDIR/regions"
2610	or die "unable to load regions file\n";	3084	or die "unable to load regions file\n";
		3085
		3086	for (cf::region::list) {
		3087	$_->{match} = qr/$_->{match}/
		3088	if exists $_->{match};
		3089	}
2611	}	3090	}
2612		3091
2613	sub reload_facedata {	3092	sub reload_facedata {
2614	load_facedata "$DATADIR/facedata"	3093	load_facedata "$DATADIR/facedata"
2615	or die "unable to load facedata\n";	3094	or die "unable to load facedata\n";
2616	}	3095	}
2617		3096
2618	sub reload_archetypes {	3097	sub reload_archetypes {
		3098	load_resource_file "$DATADIR/archetypes"
		3099	or die "unable to load archetypes\n";
		3100	#d# NEED to laod twice to resolve forward references
		3101	# this really needs to be done in an extra post-pass
		3102	# (which needs to be synchronous, so solve it differently)
2619	load_resource_file "$DATADIR/archetypes"	3103	load_resource_file "$DATADIR/archetypes"
2620	or die "unable to load archetypes\n";	3104	or die "unable to load archetypes\n";
2621	}	3105	}
2622		3106
2623	sub reload_treasures {	3107	sub reload_treasures {
…		…
2639		3123
2640	sub init {	3124	sub init {
2641	reload_resources;	3125	reload_resources;
2642	}	3126	}
2643		3127
2644	sub cfg_load {	3128	sub reload_config {
2645	open my $fh, "<:utf8", "$CONFDIR/config"	3129	open my $fh, "<:utf8", "$CONFDIR/config"
2646	or return;	3130	or return;
2647		3131
2648	local $/;	3132	local $/;
2649	*CFG = YAML::Syck::Load <$fh>;	3133	*CFG = YAML::Syck::Load <$fh>;
…		…
2669	(async {	3153	(async {
2670	Event::one_event;	3154	Event::one_event;
2671	})->prio (Coro::PRIO_MAX);	3155	})->prio (Coro::PRIO_MAX);
2672	};	3156	};
2673		3157
2674	cfg_load;	3158	reload_config;
2675	db_init;	3159	db_init;
2676	load_extensions;	3160	load_extensions;
2677		3161
2678	$TICK_WATCHER->start;	3162	$TICK_WATCHER->start;
2679	Event::loop;	3163	Event::loop;
…		…
2695	},	3179	},
2696	);	3180	);
2697	}	3181	}
2698	}	3182	}
2699		3183
		3184	sub write_runtime {
		3185	my $runtime = "$LOCALDIR/runtime";
		3186
		3187	# first touch the runtime file to show we are still running:
		3188	# the fsync below can take a very very long time.
		3189
		3190	IO::AIO::aio_utime $runtime, undef, undef;
		3191
		3192	my $guard = cf::lock_acquire "write_runtime";
		3193
		3194	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3195	or return;
		3196
		3197	my $value = $cf::RUNTIME + 90 + 10;
		3198	# 10 is the runtime save interval, for a monotonic clock
		3199	# 60 allows for the watchdog to kill the server.
		3200
		3201	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3202	and return;
		3203
		3204	# always fsync - this file is important
		3205	aio_fsync $fh
		3206	and return;
		3207
		3208	# touch it again to show we are up-to-date
		3209	aio_utime $fh, undef, undef;
		3210
		3211	close $fh
		3212	or return;
		3213
		3214	aio_rename "$runtime~", $runtime
		3215	and return;
		3216
		3217	warn "runtime file written.\n";
		3218
		3219	1
		3220	}
		3221
2700	sub emergency_save() {	3222	sub emergency_save() {
2701	my $freeze_guard = cf::freeze_mainloop;	3223	my $freeze_guard = cf::freeze_mainloop;
2702		3224
2703	warn "enter emergency perl save\n";	3225	warn "enter emergency perl save\n";
2704		3226
…		…
2779	%EXT_CORO = ();	3301	%EXT_CORO = ();
2780		3302
2781	warn "removing commands";	3303	warn "removing commands";
2782	%COMMAND = ();	3304	%COMMAND = ();
2783		3305
2784	warn "removing ext commands";	3306	warn "removing ext/exti commands";
2785	%EXTCMD = ();	3307	%EXTCMD = ();
		3308	%EXTICMD = ();
2786		3309
2787	warn "unloading/nuking all extensions";	3310	warn "unloading/nuking all extensions";
2788	for my $pkg (@EXTS) {	3311	for my $pkg (@EXTS) {
2789	warn "... unloading $pkg";	3312	warn "... unloading $pkg";
2790		3313
…		…
2833	warn "reloading cf.pm";	3356	warn "reloading cf.pm";
2834	require cf;	3357	require cf;
2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3358	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2836		3359
2837	warn "loading config and database again";	3360	warn "loading config and database again";
2838	cf::cfg_load;	3361	cf::reload_config;
2839		3362
2840	warn "loading extensions";	3363	warn "loading extensions";
2841	cf::load_extensions;	3364	cf::load_extensions;
2842		3365
2843	warn "reattaching attachments to objects/players";	3366	warn "reattaching attachments to objects/players";
…		…
2936	or die;	3459	or die;
2937		3460
2938	$map->width (50);	3461	$map->width (50);
2939	$map->height (50);	3462	$map->height (50);
2940	$map->alloc;	3463	$map->alloc;
2941	$map->_load_objects ("/tmp/x.map", 1);	3464	$map->_load_objects ("/tmp/x.map", 1); #TODO: does not work
2942	my $t = Event::time - $t;	3465	my $t = Event::time - $t;
2943		3466
2944	#next unless $t < 0.0013;#d#	3467	#next unless $t < 0.0013;#d#
2945	if ($t < $min) {	3468	if ($t < $min) {
2946	$min = $t;	3469	$min = $t;

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