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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.280 by root, Sat Jun 16 14:35:41 2007 UTC vs.
Revision 1.371 by root, Thu Sep 13 16:16:01 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;
…		…
76	our $NEXT_TICK;	80	our $NEXT_TICK;
77	our $NOW;	81	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	82	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		83
80	our $BDB_POLL_WATCHER;	84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	88	our $DB_ENV;
82		89
83	our %CFG;	90	our %CFG;
84		91
85	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	93	our $RUNTIME;
87		94
88	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	97	our $LINK_MAP; # the special {link} map, which is always available
91		98
92	# 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 ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		101
…		…
164		171
165	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
166	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
167	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.
168		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
169	=back	182	=back
170		183
171	=cut	184	=cut
172		185
173	BEGIN {	186	BEGIN {
…		…
177	$msg .= "\n"	190	$msg .= "\n"
178	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
179		192
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		194
182	utf8::encode $msg;
183	LOG llevError, $msg;	195	LOG llevError, $msg;
184	};	196	};
185	}	197	}
186		198
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
206	}	218	}
207		219
208	$Event::DIED = sub {	220	$Event::DIED = sub {
209	warn "error in event callback: @_";	221	warn "error in event callback: @_";
210	};	222	};
		223
		224	#############################################################################
211		225
212	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
213		227
214	=over 4	228	=over 4
215		229
…		…
234	$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;
235	$d	249	$d
236	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
237	}	251	}
238		252
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
242		254
243	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
244		256
245	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
246		258
247	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]) }
248		267
249	=item cf::lock_wait $string	268	=item cf::lock_wait $string
250		269
251	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
252		271
…		…
255	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
256	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,
257	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
258	returned.	277	returned.
259		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
260	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
261	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
262		284
263	=item $locked = cf::lock_active $string	285	=item $locked = cf::lock_active $string
264		286
265	Return true if the lock is currently active, i.e. somebody has locked it.	287	Return true if the lock is currently active, i.e. somebody has locked it.
266		288
267	=cut	289	=cut
268		290
269	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
270		293
271	sub lock_wait($) {	294	sub lock_wait($) {
272	my ($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#
273		301
274	# wait for lock, if any	302	# wait for lock, if any
275	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
276	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
277	Coro::schedule;	305	Coro::schedule;
…		…
283		311
284	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
285	lock_wait $key;	313	lock_wait $key;
286		314
287	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
288		317
289	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
290	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
291	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
292	}	322	}
293	}	323	}
294		324
…		…
306	};	336	};
307	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
308	$guard	338	$guard
309	}	339	}
310		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
311	=item cf::async { BLOCK }	397	=item cf::async { BLOCK }
312		398
313	Currently the same as Coro::async_pool, meaning you cannot use	399	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	400	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.	401	thing you are allowed to do is call C<prio> on it.
…		…
318		404
319	BEGIN { *async = \&Coro::async_pool }	405	BEGIN { *async = \&Coro::async_pool }
320		406
321	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
322		408
323	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)
324	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
325	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.
326		413
327	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
328	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
329	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
330	fast or be very important.	417	fast or be very important.
…		…
390	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
391		478
392	$coro	479	$coro
393	}	480	}
394		481
395	sub write_runtime {	482	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		483
398	# first touch the runtime file to show we are still running:	484	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	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.
400		488
401	IO::AIO::aio_utime $runtime, undef, undef;	489	=cut
402		490
403	my $guard = cf::lock_acquire "write_runtime";	491	sub fork_call(&@) {
		492	my ($cb, @args) = @_;
404		493
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	494	# we seemingly have to make a local copy of the whole thing,
406	or return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
407		497
408	my $value = $cf::RUNTIME + 90 + 10;	498	my @res = Coro::Util::fork_eval {
409	# 10 is the runtime save interval, for a monotonic clock	499	reset_signals;
410	# 60 allows for the watchdog to kill the server.	500	&$cb
		501	}, @args;
411		502
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	503	wantarray ? @res : $res[-1]
413	and return;	504	}
414		505
415	# always fsync - this file is important	506	=item $value = cf::db_get $family => $key
416	aio_fsync $fh
417	and return;
418		507
419	# touch it again to show we are up-to-date	508	Returns a single value from the environment database.
420	aio_utime $fh, undef, undef;
421		509
422	close $fh	510	=item cf::db_put $family => $key => $value
423	or return;
424		511
425	aio_rename "$runtime~", $runtime	512	Stores the given C<$value> in the family. It can currently store binary
426	and return;	513	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
427		514
428	warn "runtime file written.\n";	515	=item $db = cf::db_table "name"
429		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
430	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"
431	}	631	}
432		632
433	=item cf::datalog type => key => value, ...	633	=item cf::datalog type => key => value, ...
434		634
435	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.
…		…
453	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")
454	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
455		655
456	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>
457	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
458	crossfire+).	658	Crossfire TRT).
459		659
460	=over 4	660	=over 4
461		661
462	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
463		663
…		…
715	";	915	";
716	die if $@;	916	die if $@;
717	}	917	}
718		918
719	our $override;	919	our $override;
720	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?
721		921
722	sub override {	922	sub override {
723	$override = 1;	923	$override = 1;
724	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
725	}	925	}
726		926
727	sub do_invoke {	927	sub do_invoke {
728	my $event = shift;	928	my $event = shift;
729	my $callbacks = shift;	929	my $callbacks = shift;
730		930
731	@invoke_results = ();	931	@INVOKE_RESULTS = ();
732		932
733	local $override;	933	local $override;
734		934
735	for (@$callbacks) {	935	for (@$callbacks) {
736	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
753		953
754	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
755		955
756	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
757	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
758	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		959
760	=back	960	=back
761		961
762	=cut	962	=cut
763		963
764	#############################################################################	964	#############################################################################
765	# 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	}
766		977
767	sub reattach {	978	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	980	my ($obj) = @_;
770		981
…		…
815	);	1026	);
816		1027
817	sub object_freezer_save {	1028	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
819		1030
		1031	my $guard = cf::lock_acquire "io";
		1032
820	sync_job {	1033	sync_job {
821	if (length $$rdata) {	1034	if (length $$rdata) {
		1035	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1036	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1037	$decname, length $$rdata, scalar @$objs;
824		1038
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1039	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1040	chmod SAVE_MODE, $fh;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1041	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh if $cf::USE_FSYNC;	1042	aio_fsync $fh if $cf::USE_FSYNC;
…		…
847	}	1061	}
848	} else {	1062	} else {
849	aio_unlink $filename;	1063	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1064	aio_unlink "$filename.pst";
851	}	1065	}
852	}	1066	};
		1067
		1068	undef $guard;
853	}	1069	}
854		1070
855	sub object_freezer_as_string {	1071	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1072	my ($rdata, $objs) = @_;
857		1073
…		…
862		1078
863	sub object_thawer_load {	1079	sub object_thawer_load {
864	my ($filename) = @_;	1080	my ($filename) = @_;
865		1081
866	my ($data, $av);	1082	my ($data, $av);
		1083
		1084	my $guard = cf::lock_acquire "io";
867		1085
868	(aio_load $filename, $data) >= 0	1086	(aio_load $filename, $data) >= 0
869	or return;	1087	or return;
870		1088
871	unless (aio_stat "$filename.pst") {	1089	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1090	(aio_load "$filename.pst", $av) >= 0
873	or return;	1091	or return;
		1092
		1093	undef $guard;
874	$av = eval { (Storable::thaw $av)->{objs} };	1094	$av = eval { (Storable::thaw $av)->{objs} };
875	}	1095	}
876		1096
		1097	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1098	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};	1099	$decname, length $data, scalar @{$av || []};
		1100
879	return ($data, $av);	1101	($data, $av)
880	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
881		1109
882	#############################################################################	1110	#############################################################################
883	# command handling &c	1111	# command handling &c
884		1112
885	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1127	}
900		1128
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1130
903	Register a callbackf ro execution when the client sends an extcmd packet.	1131	Register a callback for execution when the client sends an (synchronous)
		1132	extcmd packet. Ext commands will be processed in the order they are
		1133	received by the server, like other user commands. The first argument is
		1134	the logged-in player. Ext commands can only be processed after a player
		1135	has logged in successfully.
904		1136
905	If the callback returns something, it is sent back as if reply was being	1137	If the callback returns something, it is sent back as if reply was being
906	called.	1138	called.
907		1139
		1140	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1141
		1142	Register a callback for execution when the client sends an (asynchronous)
		1143	exticmd packet. Exti commands are processed by the server as soon as they
		1144	are received, i.e. out of order w.r.t. other commands. The first argument
		1145	is a client socket. Exti commands can be received anytime, even before
		1146	log-in.
		1147
		1148	If the callback returns something, it is sent back as if reply was being
		1149	called.
		1150
908	=cut	1151	=cut
909		1152
910	sub register_extcmd {	1153	sub register_extcmd {
911	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
912		1155
913	$EXTCMD{$name} = $cb;	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
914	}	1163	}
915		1164
916	cf::player->attach (	1165	cf::player->attach (
917	on_command => sub {	1166	on_command => sub {
918	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1176	cf::override;
928	},	1177	},
929	on_extcmd => sub {	1178	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
931		1180
932	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1182
934	if (ref $msg) {	1183	if (ref $msg) {
		1184	my ($type, $reply, @payload) =
		1185	"ARRAY" eq ref $msg
		1186	? @$msg
		1187	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1188
		1189	my @reply;
		1190
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
940	} else {	1198	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1200	}
943		1201
944	cf::override;	1202	cf::override;
…		…
1018	};	1276	};
1019	}	1277	}
1020		1278
1021	#############################################################################	1279	#############################################################################
1022		1280
		1281	=back
		1282
1023	=head2 CORE EXTENSIONS	1283	=head2 CORE EXTENSIONS
1024		1284
1025	Functions and methods that extend core crossfire objects.	1285	Functions and methods that extend core crossfire objects.
1026		1286
1027	=cut	1287	=cut
…		…
1031	use Coro::AIO;	1291	use Coro::AIO;
1032		1292
1033	=head3 cf::player	1293	=head3 cf::player
1034		1294
1035	=over 4	1295	=over 4
		1296
		1297	=item cf::player::num_playing
		1298
		1299	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1300
		1301	=cut
		1302
		1303	sub num_playing {
		1304	scalar grep
		1305	$_->ob->map
		1306	&& !$_->hidden
		1307	&& !$_->ob->flag (cf::FLAG_WIZ),
		1308	cf::player::list
		1309	}
1036		1310
1037	=item cf::player::find $login	1311	=item cf::player::find $login
1038		1312
1039	Returns the given player object, loading it if necessary (might block).	1313	Returns the given player object, loading it if necessary (might block).
1040		1314
…		…
1076	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1350	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1077	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1351	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1078	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1352	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1079	aio_unlink +(playerdir $login) . "/$login.pl";	1353	aio_unlink +(playerdir $login) . "/$login.pl";
1080		1354
1081	my $pl = load_pl path $login	1355	my $f = new_from_file cf::object::thawer path $login
1082	or return;	1356	or return;
		1357
		1358	$f->next;
		1359	my $pl = cf::player::load_pl $f
		1360	or return;
		1361	local $cf::PLAYER_LOADING{$login} = $pl;
		1362	$f->resolve_delayed_derefs;
1083	$cf::PLAYER{$login} = $pl	1363	$cf::PLAYER{$login} = $pl
1084	}	1364	}
1085	}	1365	}
1086	}	1366	}
1087		1367
…		…
1097		1377
1098	aio_mkdir playerdir $pl, 0770;	1378	aio_mkdir playerdir $pl, 0770;
1099	$pl->{last_save} = $cf::RUNTIME;	1379	$pl->{last_save} = $cf::RUNTIME;
1100		1380
1101	$pl->save_pl ($path);	1381	$pl->save_pl ($path);
1102	Coro::cede;	1382	cf::cede_to_tick;
1103	}	1383	}
1104		1384
1105	sub new($) {	1385	sub new($) {
1106	my ($login) = @_;	1386	my ($login) = @_;
1107		1387
…		…
1111	$self->{deny_save} = 1;	1391	$self->{deny_save} = 1;
1112		1392
1113	$cf::PLAYER{$login} = $self;	1393	$cf::PLAYER{$login} = $self;
1114		1394
1115	$self	1395	$self
		1396	}
		1397
		1398	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1399
		1400	=cut
		1401
		1402	sub send_msg {
		1403	my $ns = shift->ns
		1404	or return;
		1405	$ns->send_msg (@_);
1116	}	1406	}
1117		1407
1118	=item $pl->quit_character	1408	=item $pl->quit_character
1119		1409
1120	Nukes the player without looking back. If logged in, the connection will	1410	Nukes the player without looking back. If logged in, the connection will
…		…
1175	or return [];	1465	or return [];
1176		1466
1177	my @logins;	1467	my @logins;
1178		1468
1179	for my $login (@$dirs) {	1469	for my $login (@$dirs) {
		1470	my $path = path $login;
		1471
		1472	# a .pst is a dead give-away for a valid player
		1473	unless (-e "$path.pst") {
1180	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1474	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1181	aio_read $fh, 0, 512, my $buf, 0 or next;	1475	aio_read $fh, 0, 512, my $buf, 0 or next;
1182	$buf !~ /^password -------------$/m or next; # official not-valid tag	1476	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1477	}
1183		1478
1184	utf8::decode $login;	1479	utf8::decode $login;
1185	push @logins, $login;	1480	push @logins, $login;
1186	}	1481	}
1187		1482
…		…
1214	}	1509	}
1215		1510
1216	\@paths	1511	\@paths
1217	}	1512	}
1218		1513
		1514	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1515
		1516	Expand crossfire pod fragments into protocol xml.
		1517
		1518	=cut
		1519
		1520	sub expand_cfpod {
		1521	((my $self), (local $_)) = @_;
		1522
		1523	# escape & and <
		1524	s/&/&amp;/g;
		1525	s/(?<![BIUGHT])</&lt;/g;
		1526
		1527	# this is buggy, it needs to properly take care of nested <'s
		1528
		1529	1 while
		1530	# replace B<>, I<>, U<> etc.
		1531	s/B<([^\>]*)>/<b>$1<\/b>/
		1532	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1533	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1534	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1535	# replace G<male|female> tags
		1536	|| s{G<([^>|]*)\|([^>]*)>}{
		1537	$self->gender ? $2 : $1
		1538	}ge
		1539	# replace H<hint text>
		1540	|| s{H<([^\>]*)>}
		1541	{
		1542	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1543	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1544	"")
		1545	[$self->{hintmode}]
		1546	}ge;
		1547
		1548	# create single paragraphs (very hackish)
		1549	s/(?<=\S)\n(?=\w)/ /g;
		1550
		1551	# compress some whitespace
		1552	s/\s+\n/\n/g; # ws line-ends
		1553	s/\n\n+/\n/g; # double lines
		1554	s/^\n+//; # beginning lines
		1555	s/\n+$//; # ending lines
		1556
		1557	$_
		1558	}
		1559
		1560	sub hintmode {
		1561	$_[0]{hintmode} = $_[1] if @_ > 1;
		1562	$_[0]{hintmode}
		1563	}
		1564
1219	=item $player->ext_reply ($msgid, %msg)	1565	=item $player->ext_reply ($msgid, @msg)
1220		1566
1221	Sends an ext reply to the player.	1567	Sends an ext reply to the player.
1222		1568
1223	=cut	1569	=cut
1224		1570
1225	sub ext_reply($$%) {	1571	sub ext_reply($$@) {
1226	my ($self, $id, %msg) = @_;	1572	my ($self, $id, @msg) = @_;
1227		1573
1228	$msg{msgid} = $id;	1574	$self->ns->ext_reply ($id, @msg)
1229
1230	$self->send ("ext " . cf::to_json \%msg);
1231	}	1575	}
1232		1576
1233	=item $player->ext_event ($type, %msg)	1577	=item $player->ext_msg ($type, @msg)
1234		1578
1235	Sends an ext event to the client.	1579	Sends an ext event to the client.
1236		1580
1237	=cut	1581	=cut
1238		1582
1239	sub ext_event($$%) {	1583	sub ext_msg($$@) {
1240	my ($self, $type, %msg) = @_;	1584	my ($self, $type, @msg) = @_;
1241		1585
1242	$self->ns->ext_event ($type, %msg);	1586	$self->ns->ext_msg ($type, @msg);
1243	}	1587	}
1244		1588
1245	=head3 cf::region	1589	=head3 cf::region
1246		1590
1247	=over 4	1591	=over 4
…		…
1250		1594
1251	package cf::region;	1595	package cf::region;
1252		1596
1253	=item cf::region::find_by_path $path	1597	=item cf::region::find_by_path $path
1254		1598
1255	Tries to decuce the probable region for a map knowing only its path.	1599	Tries to decuce the likely region for a map knowing only its path.
1256		1600
1257	=cut	1601	=cut
1258		1602
1259	sub find_by_path($) {	1603	sub find_by_path($) {
1260	my ($path) = @_;	1604	my ($path) = @_;
1261		1605
1262	my ($match, $specificity);	1606	my ($match, $specificity);
1263		1607
1264	for my $region (list) {	1608	for my $region (list) {
1265	if ($region->match && $path =~ $region->match) {	1609	if ($region->{match} && $path =~ $region->{match}) {
1266	($match, $specificity) = ($region, $region->specificity)	1610	($match, $specificity) = ($region, $region->specificity)
1267	if $region->specificity > $specificity;	1611	if $region->specificity > $specificity;
1268	}	1612	}
1269	}	1613	}
1270		1614
…		…
1390	$self->init; # pass $1 etc.	1734	$self->init; # pass $1 etc.
1391	return $self;	1735	return $self;
1392	}	1736	}
1393	}	1737	}
1394		1738
1395	Carp::carp "unable to resolve path '$path' (base '$base').";	1739	Carp::cluck "unable to resolve path '$path' (base '$base').";
1396	()	1740	()
1397	}	1741	}
1398		1742
1399	sub init {	1743	sub init {
1400	my ($self) = @_;	1744	my ($self) = @_;
…		…
1463		1807
1464	sub load_header_from($) {	1808	sub load_header_from($) {
1465	my ($self, $path) = @_;	1809	my ($self, $path) = @_;
1466		1810
1467	utf8::encode $path;	1811	utf8::encode $path;
1468	#aio_open $path, O_RDONLY, 0	1812	my $f = new_from_file cf::object::thawer $path
1469	# or return;
1470
1471	$self->_load_header ($path)
1472	or return;	1813	or return;
		1814
		1815	$self->_load_header ($f)
		1816	or return;
		1817
		1818	local $MAP_LOADING{$self->{path}} = $self;
		1819	$f->resolve_delayed_derefs;
1473		1820
1474	$self->{load_path} = $path;	1821	$self->{load_path} = $path;
1475		1822
1476	1	1823	1
1477	}	1824	}
…		…
1531	sub find {	1878	sub find {
1532	my ($path, $origin) = @_;	1879	my ($path, $origin) = @_;
1533		1880
1534	$path = normalise $path, $origin && $origin->path;	1881	$path = normalise $path, $origin && $origin->path;
1535		1882
		1883	cf::lock_wait "map_data:$path";#d#remove
1536	cf::lock_wait "map_find:$path";	1884	cf::lock_wait "map_find:$path";
1537		1885
1538	$cf::MAP{$path} || do {	1886	$cf::MAP{$path} || do {
1539	my $guard = cf::lock_acquire "map_find:$path";	1887	my $guard1 = cf::lock_acquire "map_find:$path";
		1888	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1889
1540	my $map = new_from_path cf::map $path	1890	my $map = new_from_path cf::map $path
1541	or return;	1891	or return;
1542		1892
1543	$map->{last_save} = $cf::RUNTIME;	1893	$map->{last_save} = $cf::RUNTIME;
1544		1894
…		…
1546	or return;	1896	or return;
1547		1897
1548	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)	1898	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1549	# doing this can freeze the server in a sync job, obviously	1899	# doing this can freeze the server in a sync job, obviously
1550	#$cf::WAIT_FOR_TICK->wait;	1900	#$cf::WAIT_FOR_TICK->wait;
		1901	undef $guard1;
		1902	undef $guard2;
1551	$map->reset;	1903	$map->reset;
1552	undef $guard;
1553	return find $path;	1904	return find $path;
1554	}	1905	}
1555		1906
1556	$cf::MAP{$path} = $map	1907	$cf::MAP{$path} = $map
1557	}	1908	}
…		…
1566	local $self->{deny_reset} = 1; # loading can take a long time	1917	local $self->{deny_reset} = 1; # loading can take a long time
1567		1918
1568	my $path = $self->{path};	1919	my $path = $self->{path};
1569		1920
1570	{	1921	{
1571	my $guard = cf::lock_acquire "map_load:$path";	1922	my $guard = cf::lock_acquire "map_data:$path";
1572		1923
		1924	return unless $self->valid;
1573	return if $self->in_memory != cf::MAP_SWAPPED;	1925	return unless $self->in_memory == cf::MAP_SWAPPED;
1574		1926
1575	$self->in_memory (cf::MAP_LOADING);	1927	$self->in_memory (cf::MAP_LOADING);
1576		1928
1577	$self->alloc;	1929	$self->alloc;
1578		1930
1579	$self->pre_load;	1931	$self->pre_load;
1580	Coro::cede;	1932	cf::cede_to_tick;
1581		1933
		1934	my $f = new_from_file cf::object::thawer $self->{load_path};
		1935	$f->skip_block;
1582	$self->_load_objects ($self->{load_path}, 1)	1936	$self->_load_objects ($f)
1583	or return;	1937	or return;
1584		1938
1585	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1939	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1586	if delete $self->{load_original};	1940	if delete $self->{load_original};
1587		1941
1588	if (my $uniq = $self->uniq_path) {	1942	if (my $uniq = $self->uniq_path) {
1589	utf8::encode $uniq;	1943	utf8::encode $uniq;
1590	if (aio_open $uniq, O_RDONLY, 0) {	1944	unless (aio_stat $uniq) {
		1945	if (my $f = new_from_file cf::object::thawer $uniq) {
1591	$self->clear_unique_items;	1946	$self->clear_unique_items;
1592	$self->_load_objects ($uniq, 0);	1947	$self->_load_objects ($f);
		1948	$f->resolve_delayed_derefs;
		1949	}
1593	}	1950	}
1594	}	1951	}
1595		1952
1596	Coro::cede;	1953	$f->resolve_delayed_derefs;
		1954
		1955	cf::cede_to_tick;
1597	# now do the right thing for maps	1956	# now do the right thing for maps
1598	$self->link_multipart_objects;	1957	$self->link_multipart_objects;
1599	$self->difficulty ($self->estimate_difficulty)	1958	$self->difficulty ($self->estimate_difficulty)
1600	unless $self->difficulty;	1959	unless $self->difficulty;
1601	Coro::cede;	1960	cf::cede_to_tick;
1602		1961
1603	unless ($self->{deny_activate}) {	1962	unless ($self->{deny_activate}) {
1604	$self->decay_objects;	1963	$self->decay_objects;
1605	$self->fix_auto_apply;	1964	$self->fix_auto_apply;
1606	$self->update_buttons;	1965	$self->update_buttons;
1607	Coro::cede;	1966	cf::cede_to_tick;
1608	$self->set_darkness_map;	1967	$self->set_darkness_map;
1609	Coro::cede;	1968	cf::cede_to_tick;
1610	$self->activate;	1969	$self->activate;
1611	}	1970	}
		1971
		1972	$self->{last_save} = $cf::RUNTIME;
		1973	$self->last_access ($cf::RUNTIME);
1612		1974
1613	$self->in_memory (cf::MAP_IN_MEMORY);	1975	$self->in_memory (cf::MAP_IN_MEMORY);
1614	}	1976	}
1615		1977
1616	$self->post_load;	1978	$self->post_load;
…		…
1627		1989
1628	$self	1990	$self
1629	}	1991	}
1630		1992
1631	# find and load all maps in the 3x3 area around a map	1993	# find and load all maps in the 3x3 area around a map
1632	sub load_diag {	1994	sub load_neighbours {
1633	my ($map) = @_;	1995	my ($map) = @_;
1634		1996
1635	my @diag; # diagonal neighbours	1997	my @neigh; # diagonal neighbours
1636		1998
1637	for (0 .. 3) {	1999	for (0 .. 3) {
1638	my $neigh = $map->tile_path ($_)	2000	my $neigh = $map->tile_path ($_)
1639	or next;	2001	or next;
1640	$neigh = find $neigh, $map	2002	$neigh = find $neigh, $map
1641	or next;	2003	or next;
1642	$neigh->load;	2004	$neigh->load;
1643		2005
		2006	push @neigh,
1644	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2007	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1645	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2008	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1646	}	2009	}
1647		2010
1648	for (@diag) {	2011	for (grep defined $_->[0], @neigh) {
		2012	my ($path, $origin) = @$_;
1649	my $neigh = find @$_	2013	my $neigh = find $path, $origin
1650	or next;	2014	or next;
1651	$neigh->load;	2015	$neigh->load;
1652	}	2016	}
1653	}	2017	}
1654		2018
…		…
1659	}	2023	}
1660		2024
1661	sub do_load_sync {	2025	sub do_load_sync {
1662	my ($map) = @_;	2026	my ($map) = @_;
1663		2027
		2028	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2029	if $Coro::current == $Coro::main;
		2030
1664	cf::sync_job { $map->load };	2031	cf::sync_job { $map->load };
1665	}	2032	}
1666		2033
1667	our %MAP_PREFETCH;	2034	our %MAP_PREFETCH;
1668	our $MAP_PREFETCHER = undef;	2035	our $MAP_PREFETCHER = undef;
1669		2036
1670	sub find_async {	2037	sub find_async {
1671	my ($path, $origin) = @_;	2038	my ($path, $origin, $load) = @_;
1672		2039
1673	$path = normalise $path, $origin && $origin->{path};	2040	$path = normalise $path, $origin && $origin->{path};
1674		2041
1675	if (my $map = $cf::MAP{$path}) {	2042	if (my $map = $cf::MAP{$path}) {
1676	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2043	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1677	}	2044	}
1678		2045
1679	undef $MAP_PREFETCH{$path};	2046	$MAP_PREFETCH{$path} |= $load;
		2047
1680	$MAP_PREFETCHER ||= cf::async {	2048	$MAP_PREFETCHER ||= cf::async {
1681	while (%MAP_PREFETCH) {	2049	while (%MAP_PREFETCH) {
1682	for my $path (keys %MAP_PREFETCH) {	2050	while (my ($k, $v) = each %MAP_PREFETCH) {
1683	my $map = find $path	2051	if (my $map = find $k) {
1684	or next;
1685	$map->load;	2052	$map->load if $v;
		2053	}
1686		2054
1687	delete $MAP_PREFETCH{$path};	2055	delete $MAP_PREFETCH{$k};
1688	}	2056	}
1689	}	2057	}
1690	undef $MAP_PREFETCHER;	2058	undef $MAP_PREFETCHER;
1691	};	2059	};
1692	$MAP_PREFETCHER->prio (6);	2060	$MAP_PREFETCHER->prio (6);
…		…
1695	}	2063	}
1696		2064
1697	sub save {	2065	sub save {
1698	my ($self) = @_;	2066	my ($self) = @_;
1699		2067
1700	my $lock = cf::lock_acquire "map_data:" . $self->path;	2068	my $lock = cf::lock_acquire "map_data:$self->{path}";
1701		2069
1702	$self->{last_save} = $cf::RUNTIME;	2070	$self->{last_save} = $cf::RUNTIME;
1703		2071
1704	return unless $self->dirty;	2072	return unless $self->dirty;
1705		2073
…		…
1728	my ($self) = @_;	2096	my ($self) = @_;
1729		2097
1730	# save first because save cedes	2098	# save first because save cedes
1731	$self->save;	2099	$self->save;
1732		2100
1733	my $lock = cf::lock_acquire "map_data:" . $self->path;	2101	my $lock = cf::lock_acquire "map_data:$self->{path}";
1734		2102
1735	return if $self->players;	2103	return if $self->players;
1736	return if $self->in_memory != cf::MAP_IN_MEMORY;	2104	return if $self->in_memory != cf::MAP_IN_MEMORY;
1737	return if $self->{deny_save};	2105	return if $self->{deny_save};
1738		2106
		2107	$self->in_memory (cf::MAP_SWAPPED);
		2108
		2109	$self->deactivate;
		2110	$_->clear_links_to ($self) for values %cf::MAP;
1739	$self->clear;	2111	$self->clear;
1740	$self->in_memory (cf::MAP_SWAPPED);
1741	}	2112	}
1742		2113
1743	sub reset_at {	2114	sub reset_at {
1744	my ($self) = @_;	2115	my ($self) = @_;
1745		2116
…		…
1777	if $uniq;	2148	if $uniq;
1778	}	2149	}
1779		2150
1780	delete $cf::MAP{$self->path};	2151	delete $cf::MAP{$self->path};
1781		2152
		2153	$self->deactivate;
		2154	$_->clear_links_to ($self) for values %cf::MAP;
1782	$self->clear;	2155	$self->clear;
1783
1784	$_->clear_links_to ($self) for values %cf::MAP;
1785		2156
1786	$self->unlink_save;	2157	$self->unlink_save;
1787	$self->destroy;	2158	$self->destroy;
1788	}	2159	}
1789		2160
1790	my $nuke_counter = "aaaa";	2161	my $nuke_counter = "aaaa";
1791		2162
1792	sub nuke {	2163	sub nuke {
1793	my ($self) = @_;	2164	my ($self) = @_;
1794		2165
		2166	{
		2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2168
1795	delete $cf::MAP{$self->path};	2169	delete $cf::MAP{$self->path};
1796		2170
1797	$self->unlink_save;	2171	$self->unlink_save;
1798		2172
1799	bless $self, "cf::map";	2173	bless $self, "cf::map";
1800	delete $self->{deny_reset};	2174	delete $self->{deny_reset};
1801	$self->{deny_save} = 1;	2175	$self->{deny_save} = 1;
1802	$self->reset_timeout (1);	2176	$self->reset_timeout (1);
1803	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2177	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1804		2178
1805	$cf::MAP{$self->path} = $self;	2179	$cf::MAP{$self->path} = $self;
		2180	}
1806		2181
1807	$self->reset; # polite request, might not happen	2182	$self->reset; # polite request, might not happen
1808	}	2183	}
1809		2184
1810	=item $maps = cf::map::tmp_maps	2185	=item $maps = cf::map::tmp_maps
…		…
1886		2261
1887	sub inv_recursive {	2262	sub inv_recursive {
1888	inv_recursive_ inv $_[0]	2263	inv_recursive_ inv $_[0]
1889	}	2264	}
1890		2265
		2266	=item $ref = $ob->ref
		2267
		2268	creates and returns a persistent reference to an objetc that can be stored as a string.
		2269
		2270	=item $ob = cf::object::deref ($refstring)
		2271
		2272	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2273	even if the object actually exists. May block.
		2274
		2275	=cut
		2276
		2277	sub deref {
		2278	my ($ref) = @_;
		2279
		2280	# temporary compatibility#TODO#remove
		2281	$ref =~ s{^<}{player/<};
		2282
		2283	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2284	my ($uuid, $name) = ($1, $2);
		2285	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2286	or return;
		2287	$pl->ob->uuid eq $uuid
		2288	or return;
		2289
		2290	$pl->ob
		2291	} else {
		2292	warn "$ref: cannot resolve object reference\n";
		2293	undef
		2294	}
		2295	}
		2296
1891	package cf;	2297	package cf;
1892		2298
1893	=back	2299	=back
1894		2300
1895	=head3 cf::object::player	2301	=head3 cf::object::player
…		…
1912		2318
1913	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1914		2320
1915	if ($self->{record_replies}) {	2321	if ($self->{record_replies}) {
1916	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2323
1917	} else {	2324	} else {
		2325	my $pl = $self->contr;
		2326
		2327	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2328	my $dialog = $pl->{npc_dialog};
		2329	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2330
		2331	} else {
1918	$msg = $npc->name . " says: $msg" if $npc;	2332	$msg = $npc->name . " says: $msg" if $npc;
1919	$self->message ($msg, $flags);	2333	$self->message ($msg, $flags);
		2334	}
1920	}	2335	}
		2336	}
		2337
		2338	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2339
		2340	=cut
		2341
		2342	sub cf::object::send_msg {
		2343	my $pl = shift->contr
		2344	or return;
		2345	$pl->send_msg (@_);
1921	}	2346	}
1922		2347
1923	=item $player_object->may ("access")	2348	=item $player_object->may ("access")
1924		2349
1925	Returns wether the given player is authorized to access resource "access"	2350	Returns wether the given player is authorized to access resource "access"
…		…
2004	# use -1 or undef as default coordinates, not 0, 0	2429	# use -1 or undef as default coordinates, not 0, 0
2005	($x, $y) = ($map->enter_x, $map->enter_y)	2430	($x, $y) = ($map->enter_x, $map->enter_y)
2006	if $x <=0 && $y <= 0;	2431	if $x <=0 && $y <= 0;
2007		2432
2008	$map->load;	2433	$map->load;
2009	$map->load_diag;	2434	$map->load_neighbours;
2010		2435
2011	return unless $self->contr->active;	2436	return unless $self->contr->active;
2012	$self->activate_recursive;	2437	$self->activate_recursive;
2013		2438
2014	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2439	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2015	$self->enter_map ($map, $x, $y);	2440	$self->enter_map ($map, $x, $y);
2016	}	2441	}
2017		2442
2018	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2443	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
2019		2444
2020	Moves the player to the given map-path and coordinates by first freezing	2445	Moves the player to the given map-path and coordinates by first freezing
2021	her, loading and preparing them map, calling the provided $check callback	2446	her, loading and preparing them map, calling the provided $check callback
2022	that has to return the map if sucecssful, and then unfreezes the player on	2447	that has to return the map if sucecssful, and then unfreezes the player on
2023	the new (success) or old (failed) map position.	2448	the new (success) or old (failed) map position. In either case, $done will
		2449	be called at the end of this process.
2024		2450
2025	=cut	2451	=cut
2026		2452
2027	our $GOTOGEN;	2453	our $GOTOGEN;
2028		2454
2029	sub cf::object::player::goto {	2455	sub cf::object::player::goto {
2030	my ($self, $path, $x, $y, $check) = @_;	2456	my ($self, $path, $x, $y, $check, $done) = @_;
2031		2457
2032	# do generation counting so two concurrent goto's will be executed in-order	2458	# do generation counting so two concurrent goto's will be executed in-order
2033	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2459	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2034		2460
2035	$self->enter_link;	2461	$self->enter_link;
2036		2462
2037	(async {	2463	(async {
		2464	# *tag paths override both path and x|y
		2465	if ($path =~ /^\*(.*)$/) {
		2466	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2467	my $ob = $obs[rand @obs];
		2468
		2469	# see if we actually can go there
		2470	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2471	$ob = $obs[rand @obs];
		2472	} else {
		2473	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2474	}
		2475	# else put us there anyways for now #d#
		2476
		2477	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2478	} else {
		2479	($path, $x, $y) = (undef, undef, undef);
		2480	}
		2481	}
		2482
2038	my $map = eval {	2483	my $map = eval {
2039	my $map = cf::map::find $path;	2484	my $map = defined $path ? cf::map::find $path : undef;
2040		2485
2041	if ($map) {	2486	if ($map) {
2042	$map = $map->customise_for ($self);	2487	$map = $map->customise_for ($self);
2043	$map = $check->($map) if $check && $map;	2488	$map = $check->($map) if $check && $map;
2044	} else {	2489	} else {
2045	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2490	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2046	}	2491	}
2047		2492
2048	$map	2493	$map
2049	};	2494	};
2050		2495
…		…
2055		2500
2056	if ($gen == $self->{_goto_generation}) {	2501	if ($gen == $self->{_goto_generation}) {
2057	delete $self->{_goto_generation};	2502	delete $self->{_goto_generation};
2058	$self->leave_link ($map, $x, $y);	2503	$self->leave_link ($map, $x, $y);
2059	}	2504	}
		2505
		2506	$done->() if $done;
2060	})->prio (1);	2507	})->prio (1);
2061	}	2508	}
2062		2509
2063	=item $player_object->enter_exit ($exit_object)	2510	=item $player_object->enter_exit ($exit_object)
2064		2511
…		…
2133	my $hp = $exit->stats->hp;	2580	my $hp = $exit->stats->hp;
2134	my $sp = $exit->stats->sp;	2581	my $sp = $exit->stats->sp;
2135		2582
2136	$self->enter_link;	2583	$self->enter_link;
2137		2584
		2585	# if exit is damned, update players death & WoR home-position
		2586	$self->contr->savebed ($slaying, $hp, $sp)
		2587	if $exit->flag (FLAG_DAMNED);
		2588
2138	(async {	2589	(async {
2139	$self->deactivate_recursive; # just to be sure	2590	$self->deactivate_recursive; # just to be sure
2140	unless (eval {	2591	unless (eval {
2141	$self->goto ($slaying, $hp, $sp);	2592	$self->goto ($slaying, $hp, $sp);
2142		2593
…		…
2169		2620
2170	utf8::encode $text;	2621	utf8::encode $text;
2171	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2622	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2172	}	2623	}
2173		2624
		2625	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2626
		2627	Send a drawinfo or msg packet to the client, formatting the msg for the
		2628	client if neccessary. C<$type> should be a string identifying the type of
		2629	the message, with C<log> being the default. If C<$color> is negative, suppress
		2630	the message unless the client supports the msg packet.
		2631
		2632	=cut
		2633
		2634	our %CHANNEL = (
		2635	"c/identify" => {
		2636	id => "identify",
		2637	title => "Identify",
		2638	reply => undef,
		2639	tooltip => "Items recently identified",
		2640	},
		2641	"c/examine" => {
		2642	id => "examine",
		2643	title => "Examine",
		2644	reply => undef,
		2645	tooltip => "Signs and other items you examined",
		2646	},
		2647	);
		2648
		2649	sub cf::client::send_msg {
		2650	my ($self, $channel, $msg, $color, @extra) = @_;
		2651
		2652	$msg = $self->pl->expand_cfpod ($msg);
		2653
		2654	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2655
		2656	# check predefined channels, for the benefit of C
		2657	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2658
		2659	if (ref $channel) {
		2660	# send meta info to client, if not yet sent
		2661	unless (exists $self->{channel}{$channel->{id}}) {
		2662	$self->{channel}{$channel->{id}} = $channel;
		2663	$self->ext_msg (channel_info => $channel)
		2664	if $self->can_msg;
		2665	}
		2666
		2667	$channel = $channel->{id};
		2668	}
		2669
		2670	return unless @extra || length $msg;
		2671
		2672	if ($self->can_msg) {
		2673	# default colour, mask it out
		2674	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2675	if $color & cf::NDI_DEF;
		2676
		2677	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2678	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2679	} else {
		2680	if ($color >= 0) {
		2681	# replace some tags by gcfclient-compatible ones
		2682	for ($msg) {
		2683	1 while
		2684	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2685	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2686	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2687	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2688	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2689	}
		2690
		2691	$color &= cf::NDI_COLOR_MASK;
		2692
		2693	utf8::encode $msg;
		2694
		2695	if (0 && $msg =~ /\[/) {
		2696	# COMMAND/INFO
		2697	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2698	} else {
		2699	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2700	$self->send_packet ("drawinfo $color $msg")
		2701	}
		2702	}
		2703	}
		2704	}
		2705
2174	=item $client->ext_event ($type, %msg)	2706	=item $client->ext_msg ($type, @msg)
2175		2707
2176	Sends an exti event to the client.	2708	Sends an ext event to the client.
2177		2709
2178	=cut	2710	=cut
2179		2711
2180	sub cf::client::ext_event($$%) {	2712	sub cf::client::ext_msg($$@) {
2181	my ($self, $type, %msg) = @_;	2713	my ($self, $type, @msg) = @_;
2182		2714
		2715	if ($self->extcmd == 2) {
		2716	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2717	} elsif ($self->extcmd == 1) { # TODO: remove
2183	$msg{msgtype} = "event_$type";	2718	push @msg, msgtype => "event_$type";
2184	$self->send_packet ("ext " . cf::to_json \%msg);	2719	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2720	}
		2721	}
		2722
		2723	=item $client->ext_reply ($msgid, @msg)
		2724
		2725	Sends an ext reply to the client.
		2726
		2727	=cut
		2728
		2729	sub cf::client::ext_reply($$@) {
		2730	my ($self, $id, @msg) = @_;
		2731
		2732	if ($self->extcmd == 2) {
		2733	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2734	} elsif ($self->extcmd == 1) {
		2735	#TODO: version 1, remove
		2736	unshift @msg, msgtype => "reply", msgid => $id;
		2737	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2738	}
2185	}	2739	}
2186		2740
2187	=item $success = $client->query ($flags, "text", \&cb)	2741	=item $success = $client->query ($flags, "text", \&cb)
2188		2742
2189	Queues a query to the client, calling the given callback with	2743	Queues a query to the client, calling the given callback with
2190	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2744	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2191	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2745	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2192		2746
2193	Queries can fail, so check the return code. Or don't, as queries will become	2747	Queries can fail, so check the return code. Or don't, as queries will
2194	reliable at some point in the future.	2748	become reliable at some point in the future.
2195		2749
2196	=cut	2750	=cut
2197		2751
2198	sub cf::client::query {	2752	sub cf::client::query {
2199	my ($self, $flags, $text, $cb) = @_;	2753	my ($self, $flags, $text, $cb) = @_;
…		…
2207	utf8::encode $text;	2761	utf8::encode $text;
2208	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2762	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2209		2763
2210	$self->send_packet ($self->{query_queue}[0][0])	2764	$self->send_packet ($self->{query_queue}[0][0])
2211	if @{ $self->{query_queue} } == 1;	2765	if @{ $self->{query_queue} } == 1;
		2766
		2767	1
2212	}	2768	}
2213		2769
2214	cf::client->attach (	2770	cf::client->attach (
		2771	on_connect => sub {
		2772	my ($ns) = @_;
		2773
		2774	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2775	},
2215	on_reply => sub {	2776	on_reply => sub {
2216	my ($ns, $msg) = @_;	2777	my ($ns, $msg) = @_;
2217		2778
2218	# this weird shuffling is so that direct followup queries	2779	# this weird shuffling is so that direct followup queries
2219	# get handled first	2780	# get handled first
…		…
2231	} else {	2792	} else {
2232	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2793	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2233	}	2794	}
2234	}	2795	}
2235	},	2796	},
		2797	on_exticmd => sub {
		2798	my ($ns, $buf) = @_;
		2799
		2800	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2801
		2802	if (ref $msg) {
		2803	my ($type, $reply, @payload) =
		2804	"ARRAY" eq ref $msg
		2805	? @$msg
		2806	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2807
		2808	my @reply;
		2809
		2810	if (my $cb = $EXTICMD{$type}) {
		2811	@reply = $cb->($ns, @payload);
		2812	}
		2813
		2814	$ns->ext_reply ($reply, @reply)
		2815	if $reply;
		2816
		2817	} else {
		2818	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2819	}
		2820
		2821	cf::override;
		2822	},
2236	);	2823	);
2237		2824
2238	=item $client->async (\&cb)	2825	=item $client->async (\&cb)
2239		2826
2240	Create a new coroutine, running the specified callback. The coroutine will	2827	Create a new coroutine, running the specified callback. The coroutine will
…		…
2281	our $safe = new Safe "safe";	2868	our $safe = new Safe "safe";
2282	our $safe_hole = new Safe::Hole;	2869	our $safe_hole = new Safe::Hole;
2283		2870
2284	$SIG{FPE} = 'IGNORE';	2871	$SIG{FPE} = 'IGNORE';
2285		2872
2286	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2873	$safe->permit_only (Opcode::opset qw(
		2874	:base_core :base_mem :base_orig :base_math
		2875	grepstart grepwhile mapstart mapwhile
		2876	sort time
		2877	));
2287		2878
2288	# here we export the classes and methods available to script code	2879	# here we export the classes and methods available to script code
2289		2880
2290	=pod	2881	=pod
2291		2882
2292	The following functions and methods are available within a safe environment:	2883	The following functions and methods are available within a safe environment:
2293		2884
2294	cf::object contr pay_amount pay_player map	2885	cf::object
		2886	contr pay_amount pay_player map x y force_find force_add
		2887	insert remove name archname title slaying race decrease_ob_nr
		2888
2295	cf::object::player player	2889	cf::object::player
2296	cf::player peaceful	2890	player
2297	cf::map trigger	2891
		2892	cf::player
		2893	peaceful
		2894
		2895	cf::map
		2896	trigger
2298		2897
2299	=cut	2898	=cut
2300		2899
2301	for (	2900	for (
2302	["cf::object" => qw(contr pay_amount pay_player map)],	2901	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2902	insert remove inv name archname title slaying race
		2903	decrease_ob_nr)],
2303	["cf::object::player" => qw(player)],	2904	["cf::object::player" => qw(player)],
2304	["cf::player" => qw(peaceful)],	2905	["cf::player" => qw(peaceful)],
2305	["cf::map" => qw(trigger)],	2906	["cf::map" => qw(trigger)],
2306	) {	2907	) {
2307	no strict 'refs';	2908	no strict 'refs';
…		…
2378	=back	2979	=back
2379		2980
2380	=cut	2981	=cut
2381		2982
2382	#############################################################################	2983	#############################################################################
2383
2384	=head2 EXTENSION DATABASE SUPPORT
2385
2386	Crossfire maintains a very simple database for extension use. It can
2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2388	convert to/from binary).
2389
2390	The parameter C<$family> should best start with the name of the extension
2391	using it, it should be unique.
2392
2393	=over 4
2394
2395	=item $value = cf::db_get $family => $key
2396
2397	Returns a single value from the database.
2398
2399	=item cf::db_put $family => $key => $value
2400
2401	Stores the given C<$value> in the family.
2402
2403	=cut
2404
2405	our $DB;
2406
2407	sub db_init {
2408	unless ($DB) {
2409	$DB = BDB::db_create $DB_ENV;
2410
2411	cf::sync_job {
2412	eval {
2413	$DB->set_flags (BDB::CHKSUM);
2414
2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2416	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2417	cf::cleanup "db_open(db): $!" if $!;
2418	};
2419	cf::cleanup "db_open(db): $@" if $@;
2420	};
2421	}
2422	}
2423
2424	sub db_get($$) {
2425	my $key = "$_[0]/$_[1]";
2426
2427	cf::sync_job {
2428	BDB::db_get $DB, undef, $key, my $data;
2429
2430	$! ? ()
2431	: $data
2432	}
2433	}
2434
2435	sub db_put($$$) {
2436	BDB::dbreq_pri 4;
2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2438	}
2439
2440	=item cf::cache $id => [$paths...], $processversion => $process
2441
2442	Generic caching function that returns the value of the resource $id,
2443	caching and regenerating as required.
2444
2445	This function can block.
2446
2447	=cut
2448
2449	sub cache {
2450	my ($id, $src, $processversion, $process) = @_;
2451
2452	my $meta =
2453	join "\x00",
2454	$processversion,
2455	map {
2456	aio_stat $_
2457	and Carp::croak "$_: $!";
2458
2459	($_, (stat _)[7,9])
2460	} @$src;
2461
2462	my $dbmeta = db_get cache => "$id/meta";
2463	if ($dbmeta ne $meta) {
2464	# changed, we may need to process
2465
2466	my @data;
2467	my $md5;
2468
2469	for (0 .. $#$src) {
2470	0 <= aio_load $src->[$_], $data[$_]
2471	or Carp::croak "$src->[$_]: $!";
2472	}
2473
2474	# if processing is expensive, check
2475	# checksum first
2476	if (1) {
2477	$md5 =
2478	join "\x00",
2479	$processversion,
2480	map {
2481	Coro::cede;
2482	($src->[$_], Digest::MD5::md5_hex $data[$_])
2483	} 0.. $#$src;
2484
2485
2486	my $dbmd5 = db_get cache => "$id/md5";
2487	if ($dbmd5 eq $md5) {
2488	db_put cache => "$id/meta", $meta;
2489
2490	return db_get cache => "$id/data";
2491	}
2492	}
2493
2494	my $t1 = Time::HiRes::time;
2495	my $data = $process->(\@data);
2496	my $t2 = Time::HiRes::time;
2497
2498	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2499
2500	db_put cache => "$id/data", $data;
2501	db_put cache => "$id/md5" , $md5;
2502	db_put cache => "$id/meta", $meta;
2503
2504	return $data;
2505	}
2506
2507	db_get cache => "$id/data"
2508	}
2509
2510	=item fork_call { }, $args
2511
2512	Executes the given code block with the given arguments in a seperate
2513	process, returning the results. Everything must be serialisable with
2514	Coro::Storable. May, of course, block. Note that the executed sub may
2515	never block itself or use any form of Event handling.
2516
2517	=cut
2518
2519	sub fork_call(&@) {
2520	my ($cb, @args) = @_;
2521
2522	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2523	# or die "socketpair: $!";
2524	pipe my $fh1, my $fh2
2525	or die "pipe: $!";
2526
2527	if (my $pid = fork) {
2528	close $fh2;
2529
2530	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2531	$res = Coro::Storable::thaw $res;
2532
2533	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2534
2535	die $$res unless "ARRAY" eq ref $res;
2536
2537	return wantarray ? @$res : $res->[-1];
2538	} else {
2539	reset_signals;
2540	local $SIG{__WARN__};
2541	local $SIG{__DIE__};
2542	eval {
2543	close $fh1;
2544
2545	my @res = eval { $cb->(@args) };
2546	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2547	};
2548
2549	warn $@ if $@;
2550	_exit 0;
2551	}
2552	}
2553
2554	#############################################################################
2555	# the server's init and main functions	2984	# the server's init and main functions
2556		2985
2557	sub load_facedata($) {	2986	sub load_facedata($) {
2558	my ($path) = @_;	2987	my ($path) = @_;
		2988
		2989	# HACK to clear player env face cache, we need some signal framework
		2990	# for this (global event?)
		2991	%ext::player_env::MUSIC_FACE_CACHE = ();
		2992
		2993	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2559		2994
2560	warn "loading facedata from $path\n";	2995	warn "loading facedata from $path\n";
2561		2996
2562	my $facedata;	2997	my $facedata;
2563	0 < aio_load $path, $facedata	2998	0 < aio_load $path, $facedata
…		…
2566	$facedata = Coro::Storable::thaw $facedata;	3001	$facedata = Coro::Storable::thaw $facedata;
2567		3002
2568	$facedata->{version} == 2	3003	$facedata->{version} == 2
2569	or cf::cleanup "$path: version mismatch, cannot proceed.";	3004	or cf::cleanup "$path: version mismatch, cannot proceed.";
2570		3005
		3006	# patch in the exptable
		3007	$facedata->{resource}{"res/exp_table"} = {
		3008	type => FT_RSRC,
		3009	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3010	};
		3011	cf::cede_to_tick;
		3012
2571	{	3013	{
2572	my $faces = $facedata->{faceinfo};	3014	my $faces = $facedata->{faceinfo};
2573		3015
2574	while (my ($face, $info) = each %$faces) {	3016	while (my ($face, $info) = each %$faces) {
2575	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3017	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2576	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3018	cf::face::set_visibility $idx, $info->{visibility};
		3019	cf::face::set_magicmap $idx, $info->{magicmap};
2577	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3020	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2578	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3021	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2579	Coro::cede;	3022
		3023	cf::cede_to_tick;
2580	}	3024	}
2581		3025
2582	while (my ($face, $info) = each %$faces) {	3026	while (my ($face, $info) = each %$faces) {
2583	next unless $info->{smooth};	3027	next unless $info->{smooth};
2584	my $idx = cf::face::find $face	3028	my $idx = cf::face::find $face
2585	or next;	3029	or next;
2586	if (my $smooth = cf::face::find $info->{smooth}) {	3030	if (my $smooth = cf::face::find $info->{smooth}) {
		3031	cf::face::set_smooth $idx, $smooth;
2587	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3032	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2588	} else {	3033	} else {
2589	warn "smooth face '$info->{smooth}' not found for face '$face'";	3034	warn "smooth face '$info->{smooth}' not found for face '$face'";
2590	}	3035	}
2591	Coro::cede;	3036
		3037	cf::cede_to_tick;
2592	}	3038	}
2593	}	3039	}
2594		3040
2595	{	3041	{
2596	my $anims = $facedata->{animinfo};	3042	my $anims = $facedata->{animinfo};
2597		3043
2598	while (my ($anim, $info) = each %$anims) {	3044	while (my ($anim, $info) = each %$anims) {
2599	cf::anim::set $anim, $info->{frames}, $info->{facings};	3045	cf::anim::set $anim, $info->{frames}, $info->{facings};
2600	Coro::cede;	3046	cf::cede_to_tick;
2601	}	3047	}
2602		3048
2603	cf::anim::invalidate_all; # d'oh	3049	cf::anim::invalidate_all; # d'oh
2604	}	3050	}
2605		3051
		3052	{
		3053	# TODO: for gcfclient pleasure, we should give resources
		3054	# that gcfclient doesn't grok a >10000 face index.
		3055	my $res = $facedata->{resource};
		3056
		3057	my $soundconf = delete $res->{"res/sound.conf"};
		3058
		3059	while (my ($name, $info) = each %$res) {
		3060	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3061	my $data;
		3062
		3063	if ($info->{type} & 1) {
		3064	# prepend meta info
		3065
		3066	my $meta = $enc->encode ({
		3067	name => $name,
		3068	%{ $info->{meta} || {} },
		3069	});
		3070
		3071	$data = pack "(w/a*)*", $meta, $info->{data};
		3072	} else {
		3073	$data = $info->{data};
		3074	}
		3075
		3076	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3077	cf::face::set_type $idx, $info->{type};
		3078
		3079	cf::cede_to_tick;
		3080	}
		3081
		3082	if ($soundconf) {
		3083	$soundconf = $enc->decode (delete $soundconf->{data});
		3084
		3085	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3086	my $sound = $soundconf->{compat}[$_]
		3087	or next;
		3088
		3089	my $face = cf::face::find "sound/$sound->[1]";
		3090	cf::sound::set $sound->[0] => $face;
		3091	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3092	}
		3093
		3094	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3095	my $face = cf::face::find "sound/$v";
		3096	cf::sound::set $k => $face;
		3097	}
		3098	}
		3099	}
		3100
2606	1	3101	1
2607	}	3102	}
2608		3103
		3104	register_exticmd fx_want => sub {
		3105	my ($ns, $want) = @_;
		3106
		3107	while (my ($k, $v) = each %$want) {
		3108	$ns->fx_want ($k, $v);
		3109	}
		3110	};
		3111
2609	sub reload_regions {	3112	sub reload_regions {
		3113	# HACK to clear player env face cache, we need some signal framework
		3114	# for this (global event?)
		3115	%ext::player_env::MUSIC_FACE_CACHE = ();
		3116
2610	load_resource_file "$MAPDIR/regions"	3117	load_resource_file "$MAPDIR/regions"
2611	or die "unable to load regions file\n";	3118	or die "unable to load regions file\n";
		3119
		3120	for (cf::region::list) {
		3121	$_->{match} = qr/$_->{match}/
		3122	if exists $_->{match};
		3123	}
2612	}	3124	}
2613		3125
2614	sub reload_facedata {	3126	sub reload_facedata {
2615	load_facedata "$DATADIR/facedata"	3127	load_facedata "$DATADIR/facedata"
2616	or die "unable to load facedata\n";	3128	or die "unable to load facedata\n";
2617	}	3129	}
2618		3130
2619	sub reload_archetypes {	3131	sub reload_archetypes {
		3132	load_resource_file "$DATADIR/archetypes"
		3133	or die "unable to load archetypes\n";
		3134	#d# NEED to laod twice to resolve forward references
		3135	# this really needs to be done in an extra post-pass
		3136	# (which needs to be synchronous, so solve it differently)
2620	load_resource_file "$DATADIR/archetypes"	3137	load_resource_file "$DATADIR/archetypes"
2621	or die "unable to load archetypes\n";	3138	or die "unable to load archetypes\n";
2622	}	3139	}
2623		3140
2624	sub reload_treasures {	3141	sub reload_treasures {
…		…
2640		3157
2641	sub init {	3158	sub init {
2642	reload_resources;	3159	reload_resources;
2643	}	3160	}
2644		3161
2645	sub cfg_load {	3162	sub reload_config {
2646	open my $fh, "<:utf8", "$CONFDIR/config"	3163	open my $fh, "<:utf8", "$CONFDIR/config"
2647	or return;	3164	or return;
2648		3165
2649	local $/;	3166	local $/;
2650	*CFG = YAML::Syck::Load <$fh>;	3167	*CFG = YAML::Syck::Load <$fh>;
…		…
2670	(async {	3187	(async {
2671	Event::one_event;	3188	Event::one_event;
2672	})->prio (Coro::PRIO_MAX);	3189	})->prio (Coro::PRIO_MAX);
2673	};	3190	};
2674		3191
2675	cfg_load;	3192	reload_config;
2676	db_init;	3193	db_init;
2677	load_extensions;	3194	load_extensions;
2678		3195
2679	$TICK_WATCHER->start;	3196	$TICK_WATCHER->start;
2680	Event::loop;	3197	Event::loop;
…		…
2696	},	3213	},
2697	);	3214	);
2698	}	3215	}
2699	}	3216	}
2700		3217
		3218	sub write_runtime {
		3219	my $runtime = "$LOCALDIR/runtime";
		3220
		3221	# first touch the runtime file to show we are still running:
		3222	# the fsync below can take a very very long time.
		3223
		3224	IO::AIO::aio_utime $runtime, undef, undef;
		3225
		3226	my $guard = cf::lock_acquire "write_runtime";
		3227
		3228	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3229	or return;
		3230
		3231	my $value = $cf::RUNTIME + 90 + 10;
		3232	# 10 is the runtime save interval, for a monotonic clock
		3233	# 60 allows for the watchdog to kill the server.
		3234
		3235	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3236	and return;
		3237
		3238	# always fsync - this file is important
		3239	aio_fsync $fh
		3240	and return;
		3241
		3242	# touch it again to show we are up-to-date
		3243	aio_utime $fh, undef, undef;
		3244
		3245	close $fh
		3246	or return;
		3247
		3248	aio_rename "$runtime~", $runtime
		3249	and return;
		3250
		3251	warn "runtime file written.\n";
		3252
		3253	1
		3254	}
		3255
2701	sub emergency_save() {	3256	sub emergency_save() {
2702	my $freeze_guard = cf::freeze_mainloop;	3257	my $freeze_guard = cf::freeze_mainloop;
2703		3258
2704	warn "enter emergency perl save\n";	3259	warn "enter emergency perl save\n";
2705		3260
…		…
2780	%EXT_CORO = ();	3335	%EXT_CORO = ();
2781		3336
2782	warn "removing commands";	3337	warn "removing commands";
2783	%COMMAND = ();	3338	%COMMAND = ();
2784		3339
2785	warn "removing ext commands";	3340	warn "removing ext/exti commands";
2786	%EXTCMD = ();	3341	%EXTCMD = ();
		3342	%EXTICMD = ();
2787		3343
2788	warn "unloading/nuking all extensions";	3344	warn "unloading/nuking all extensions";
2789	for my $pkg (@EXTS) {	3345	for my $pkg (@EXTS) {
2790	warn "... unloading $pkg";	3346	warn "... unloading $pkg";
2791		3347
…		…
2834	warn "reloading cf.pm";	3390	warn "reloading cf.pm";
2835	require cf;	3391	require cf;
2836	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3392	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2837		3393
2838	warn "loading config and database again";	3394	warn "loading config and database again";
2839	cf::cfg_load;	3395	cf::reload_config;
2840		3396
2841	warn "loading extensions";	3397	warn "loading extensions";
2842	cf::load_extensions;	3398	cf::load_extensions;
2843		3399
2844	warn "reattaching attachments to objects/players";	3400	warn "reattaching attachments to objects/players";
…		…
2909	my $signal = new Coro::Signal;	3465	my $signal = new Coro::Signal;
2910	push @WAIT_FOR_TICK_BEGIN, $signal;	3466	push @WAIT_FOR_TICK_BEGIN, $signal;
2911	$signal->wait;	3467	$signal->wait;
2912	}	3468	}
2913		3469
2914	my $min = 1e6;#d#
2915	my $avg = 10;
2916	$TICK_WATCHER = Event->timer (	3470	$TICK_WATCHER = Event->timer (
2917	reentrant => 0,	3471	reentrant => 0,
2918	parked => 1,	3472	parked => 1,
2919	prio => 0,	3473	prio => 0,
2920	at => $NEXT_TICK || $TICK,	3474	at => $NEXT_TICK || $TICK,
…		…
2928		3482
2929	$NOW = $tick_start = Event::time;	3483	$NOW = $tick_start = Event::time;
2930		3484
2931	cf::server_tick; # one server iteration	3485	cf::server_tick; # one server iteration
2932		3486
2933	0 && sync_job {#d#
2934	for(1..10) {
2935	my $t = Event::time;
2936	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2937	or die;
2938
2939	$map->width (50);
2940	$map->height (50);
2941	$map->alloc;
2942	$map->_load_objects ("/tmp/x.map", 1);
2943	my $t = Event::time - $t;
2944
2945	#next unless $t < 0.0013;#d#
2946	if ($t < $min) {
2947	$min = $t;
2948	}
2949	$avg = $avg * 0.99 + $t * 0.01;
2950	}
2951	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2952	exit 0;
2953	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2954	};
2955
2956	$RUNTIME += $TICK;	3487	$RUNTIME += $TICK;
2957	$NEXT_TICK += $TICK;	3488	$NEXT_TICK += $TICK;
2958		3489
2959	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3490	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2960	$NEXT_RUNTIME_WRITE = $NOW + 10;	3491	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2962	write_runtime	3493	write_runtime
2963	or warn "ERROR: unable to write runtime file: $!";	3494	or warn "ERROR: unable to write runtime file: $!";
2964	};	3495	};
2965	}	3496	}
2966		3497
2967	# my $AFTER = Event::time;
2968	# warn $AFTER - $NOW;#d#
2969
2970	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3498	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2971	$sig->send;	3499	$sig->send;
2972	}	3500	}
2973	while (my $sig = shift @WAIT_FOR_TICK) {	3501	while (my $sig = shift @WAIT_FOR_TICK) {
2974	$sig->send;	3502	$sig->send;
…		…
2984		3512
2985	$LOAD = ($NOW - $tick_start) / $TICK;	3513	$LOAD = ($NOW - $tick_start) / $TICK;
2986	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3514	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2987		3515
2988	_post_tick;	3516	_post_tick;
2989
2990
2991	},	3517	},
2992	);	3518	);
2993		3519
2994	{	3520	{
		3521	BDB::min_parallel 8;
2995	BDB::max_poll_time $TICK * 0.1;	3522	BDB::max_poll_time $TICK * 0.1;
2996	$BDB_POLL_WATCHER = Event->io (	3523	$BDB_POLL_WATCHER = Event->io (
2997	reentrant => 0,	3524	reentrant => 0,
2998	fd => BDB::poll_fileno,	3525	fd => BDB::poll_fileno,
2999	poll => 'r',	3526	poll => 'r',
3000	prio => 0,	3527	prio => 0,
3001	data => WF_AUTOCANCEL,	3528	data => WF_AUTOCANCEL,
3002	cb => \&BDB::poll_cb,	3529	cb => \&BDB::poll_cb,
3003	);	3530	);
3004	BDB::min_parallel 8;
3005		3531
3006	BDB::set_sync_prepare {	3532	BDB::set_sync_prepare {
3007	my $status;	3533	my $status;
3008	my $current = $Coro::current;	3534	my $current = $Coro::current;
3009	(	3535	(
…		…
3018	)	3544	)
3019	};	3545	};
3020		3546
3021	unless ($DB_ENV) {	3547	unless ($DB_ENV) {
3022	$DB_ENV = BDB::db_env_create;	3548	$DB_ENV = BDB::db_env_create;
		3549	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3550	| BDB::LOG_AUTOREMOVE, 1);
		3551	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3552	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
3023		3553
3024	cf::sync_job {	3554	cf::sync_job {
3025	eval {	3555	eval {
3026	BDB::db_env_open	3556	BDB::db_env_open
3027	$DB_ENV,	3557	$DB_ENV,
…		…
3029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3559	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3560	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3031	0666;	3561	0666;
3032		3562
3033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3563	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3034
3035	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
3036	$DB_ENV->set_lk_detect;
3037	};	3564	};
3038		3565
3039	cf::cleanup "db_env_open(db): $@" if $@;	3566	cf::cleanup "db_env_open(db): $@" if $@;
3040	};	3567	};
3041	}	3568	}
		3569
		3570	$BDB_DEADLOCK_WATCHER = Event->timer (
		3571	after => 3,
		3572	interval => 1,
		3573	hard => 1,
		3574	prio => 0,
		3575	data => WF_AUTOCANCEL,
		3576	cb => sub {
		3577	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3578	},
		3579	);
		3580	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3581	after => 11,
		3582	interval => 60,
		3583	hard => 1,
		3584	prio => 0,
		3585	data => WF_AUTOCANCEL,
		3586	cb => sub {
		3587	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3588	},
		3589	);
		3590	$BDB_TRICKLE_WATCHER = Event->timer (
		3591	after => 5,
		3592	interval => 10,
		3593	hard => 1,
		3594	prio => 0,
		3595	data => WF_AUTOCANCEL,
		3596	cb => sub {
		3597	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3598	},
		3599	);
3042	}	3600	}
3043		3601
3044	{	3602	{
3045	IO::AIO::min_parallel 8;	3603	IO::AIO::min_parallel 8;
3046		3604

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