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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.256 by root, Sat Apr 21 16:56:32 2007 UTC vs.
Revision 1.352 by root, Sun Sep 2 04:57:14 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;
…		…
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
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
		102
95	binmode STDOUT;	103	binmode STDOUT;
96	binmode STDERR;	104	binmode STDERR;
97		105
98	# read virtual server time, if available	106	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
…		…
139		147
140	=item $cf::TICK	148	=item $cf::TICK
141		149
142	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
143		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
		161
144	=item %cf::CFG	162	=item %cf::CFG
145		163
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
147	from wherever your confdir points to.	165	from wherever your confdir points to.
148		166
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	167	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		168
151	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
152	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
153	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.
154		178
155	=back	179	=back
156		180
157	=cut	181	=cut
158		182
…		…
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		204
180	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	206	# within the Safe compartment.
182	for my $pkg (qw(	207	for my $pkg (qw(
183	cf::global cf::attachable	208	cf::global cf::attachable
…		…
191	}	216	}
192		217
193	$Event::DIED = sub {	218	$Event::DIED = sub {
194	warn "error in event callback: @_";	219	warn "error in event callback: @_";
195	};	220	};
		221
		222	#############################################################################
196		223
197	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
198		225
199	=over 4	226	=over 4
200		227
…		…
219	$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;
220	$d	247	$d
221	} || "[unable to dump $_[0]: '$@']";	248	} || "[unable to dump $_[0]: '$@']";
222	}	249	}
223		250
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
227		252
228	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
229		254
230	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
231		256
232	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]) }
233		265
234	=item cf::lock_wait $string	266	=item cf::lock_wait $string
235		267
236	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
237		269
…		…
239		271
240	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
241	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,
242	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
243	returned.	275	returned.
		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
244		279
245	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
246	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
247		282
248	=item $locked = cf::lock_active $string	283	=item $locked = cf::lock_active $string
…		…
291	};	326	};
292	$TICK_WATCHER->stop;	327	$TICK_WATCHER->stop;
293	$guard	328	$guard
294	}	329	}
295		330
		331	=item cf::get_slot $time[, $priority[, $name]]
		332
		333	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		334	This call blocks and returns only when you have at least C<$time> seconds
		335	of cpu time till the next tick. The slot is only valid till the next cede.
		336
		337	The optional C<$name> can be used to identify the job to run. It might be
		338	used for statistical purposes and should identify the same time-class.
		339
		340	Useful for short background jobs.
		341
		342	=cut
		343
		344	our @SLOT_QUEUE;
		345	our $SLOT_QUEUE;
		346
		347	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		348	$SLOT_QUEUE = Coro::async {
		349	my $signal = new Coro::Signal;
		350
		351	while () {
		352	next_job:
		353	my $avail = cf::till_tick;
		354	if ($avail > 0.01) {
		355	for (0 .. $#SLOT_QUEUE) {
		356	if ($SLOT_QUEUE[$_][0] < $avail) {
		357	my $job = splice @SLOT_QUEUE, $_, 1, ();
		358	$job->[2]->send;
		359	Coro::cede;
		360	goto next_job;
		361	}
		362	}
		363	}
		364
		365	if (@SLOT_QUEUE) {
		366	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		367	push @cf::WAIT_FOR_TICK, $signal;
		368	$signal->wait;
		369	} else {
		370	Coro::schedule;
		371	}
		372	}
		373	};
		374
		375	sub get_slot($;$$) {
		376	my ($time, $pri, $name) = @_;
		377
		378	$time = $TICK * .6 if $time > $TICK * .6;
		379	my $sig = new Coro::Signal;
		380
		381	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		382	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		383	$SLOT_QUEUE->ready;
		384	$sig->wait;
		385	}
		386
296	=item cf::async { BLOCK }	387	=item cf::async { BLOCK }
297		388
298	Currently the same as Coro::async_pool, meaning you cannot use	389	Currently the same as Coro::async_pool, meaning you cannot use
299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	390	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
300	thing you are allowed to do is call C<prio> on it.	391	thing you are allowed to do is call C<prio> on it.
…		…
303		394
304	BEGIN { *async = \&Coro::async_pool }	395	BEGIN { *async = \&Coro::async_pool }
305		396
306	=item cf::sync_job { BLOCK }	397	=item cf::sync_job { BLOCK }
307		398
308	The design of crossfire+ requires that the main coro ($Coro::main) is	399	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	400	is always able to handle events or runnable, as Crossfire TRT is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	401	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		402	acceptable.
311		403
312	If it must be done, put the blocking parts into C<sync_job>. This will run	404	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	405	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	406	server will be frozen during this time, so the block should either finish
315	fast or be very important.	407	fast or be very important.
…		…
318		410
319	sub sync_job(&) {	411	sub sync_job(&) {
320	my ($job) = @_;	412	my ($job) = @_;
321		413
322	if ($Coro::current == $Coro::main) {	414	if ($Coro::current == $Coro::main) {
		415	my $time = Event::time;
		416
323	# this is the main coro, too bad, we have to block	417	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	418	# till the operation succeeds, freezing the server :/
325		419
326	# TODO: use suspend/resume instead	420	# TODO: use suspend/resume instead
327	# (but this is cancel-safe)	421	# (but this is cancel-safe)
…		…
338		432
339	while ($busy) {	433	while ($busy) {
340	Coro::cede or Event::one_event;	434	Coro::cede or Event::one_event;
341	}	435	}
342		436
		437	$time = Event::time - $time;
		438
		439	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		440	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		441
		442	$tick_start += $time; # do not account sync jobs to server load
		443
343	wantarray ? @res : $res[0]	444	wantarray ? @res : $res[0]
344	} else {	445	} else {
345	# we are in another coroutine, how wonderful, everything just works	446	# we are in another coroutine, how wonderful, everything just works
346		447
347	$job->()	448	$job->()
…		…
366	$EXT_CORO{$coro+0} = $coro;	467	$EXT_CORO{$coro+0} = $coro;
367		468
368	$coro	469	$coro
369	}	470	}
370		471
371	sub write_runtime {	472	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		473
374	my $runtime = "$LOCALDIR/runtime";	474	Executes the given code block with the given arguments in a seperate
		475	process, returning the results. Everything must be serialisable with
		476	Coro::Storable. May, of course, block. Note that the executed sub may
		477	never block itself or use any form of Event handling.
375		478
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	479	=cut
377	or return;
378		480
379	my $value = $cf::RUNTIME + 90 + 10;	481	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	482	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		483
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	484	# we seemingly have to make a local copy of the whole thing,
384	and return;	485	# otherwise perl prematurely frees the stuff :/
		486	# TODO: investigate and fix (liekly this will be rather laborious)
385		487
386	# always fsync - this file is important	488	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	489	reset_signals;
388	and return;	490	&$cb
		491	}, @args;
389		492
390	close $fh	493	wantarray ? @res : $res[-1]
391	or return;	494	}
392		495
393	aio_rename "$runtime~", $runtime	496	=item $value = cf::db_get $family => $key
394	and return;
395		497
		498	Returns a single value from the environment database.
		499
		500	=item cf::db_put $family => $key => $value
		501
		502	Stores the given C<$value> in the family. It can currently store binary
		503	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		504
		505	=cut
		506
		507	our $DB;
		508
		509	sub db_init {
		510	unless ($DB) {
		511	$DB = BDB::db_create $DB_ENV;
		512
		513	cf::sync_job {
		514	eval {
		515	$DB->set_flags (BDB::CHKSUM);
		516
		517	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		518	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		519	cf::cleanup "db_open(db): $!" if $!;
		520	};
		521	cf::cleanup "db_open(db): $@" if $@;
		522	};
396	1	523	}
		524	}
		525
		526	sub db_get($$) {
		527	my $key = "$_[0]/$_[1]";
		528
		529	cf::sync_job {
		530	BDB::db_get $DB, undef, $key, my $data;
		531
		532	$! ? ()
		533	: $data
		534	}
		535	}
		536
		537	sub db_put($$$) {
		538	BDB::dbreq_pri 4;
		539	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		540	}
		541
		542	=item cf::cache $id => [$paths...], $processversion => $process
		543
		544	Generic caching function that returns the value of the resource $id,
		545	caching and regenerating as required.
		546
		547	This function can block.
		548
		549	=cut
		550
		551	sub cache {
		552	my ($id, $src, $processversion, $process) = @_;
		553
		554	my $meta =
		555	join "\x00",
		556	$processversion,
		557	map {
		558	aio_stat $_
		559	and Carp::croak "$_: $!";
		560
		561	($_, (stat _)[7,9])
		562	} @$src;
		563
		564	my $dbmeta = db_get cache => "$id/meta";
		565	if ($dbmeta ne $meta) {
		566	# changed, we may need to process
		567
		568	my @data;
		569	my $md5;
		570
		571	for (0 .. $#$src) {
		572	0 <= aio_load $src->[$_], $data[$_]
		573	or Carp::croak "$src->[$_]: $!";
		574	}
		575
		576	# if processing is expensive, check
		577	# checksum first
		578	if (1) {
		579	$md5 =
		580	join "\x00",
		581	$processversion,
		582	map {
		583	cf::cede_to_tick;
		584	($src->[$_], Digest::MD5::md5_hex $data[$_])
		585	} 0.. $#$src;
		586
		587
		588	my $dbmd5 = db_get cache => "$id/md5";
		589	if ($dbmd5 eq $md5) {
		590	db_put cache => "$id/meta", $meta;
		591
		592	return db_get cache => "$id/data";
		593	}
		594	}
		595
		596	my $t1 = Time::HiRes::time;
		597	my $data = $process->(\@data);
		598	my $t2 = Time::HiRes::time;
		599
		600	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		601
		602	db_put cache => "$id/data", $data;
		603	db_put cache => "$id/md5" , $md5;
		604	db_put cache => "$id/meta", $meta;
		605
		606	return $data;
		607	}
		608
		609	db_get cache => "$id/data"
397	}	610	}
398		611
399	=item cf::datalog type => key => value, ...	612	=item cf::datalog type => key => value, ...
400		613
401	Log a datalog packet of the given type with the given key-value pairs.	614	Log a datalog packet of the given type with the given key-value pairs.
…		…
419	attach callbacks/event handlers (a collection of which is called an "attachment")	632	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	633	to it. All such attachable objects support the following methods.
421		634
422	In the following description, CLASS can be any of C<global>, C<object>	635	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	636	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	637	Crossfire TRT).
425		638
426	=over 4	639	=over 4
427		640
428	=item $attachable->attach ($attachment, key => $value...)	641	=item $attachable->attach ($attachment, key => $value...)
429		642
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	805	$registry = $CB_TYPE[$object_type] ||= [];
593		806
594	} elsif ($type eq "subtype") {	807	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	808	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	809	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	810	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		811
599	} elsif ($type eq "package") {	812	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	813	my $pkg = shift @arg;
601		814
602	while (my ($name, $id) = each %cb_id) {	815	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	844	_attach $registry, $klass, @attach;
632	}	845	}
633		846
634	$obj->{$name} = \%arg;	847	$obj->{$name} = \%arg;
635	} else {	848	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	849	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	850	}
638		851
639	$obj->{_attachment}{$name} = undef;	852	$obj->{_attachment}{$name} = undef;
640	}	853	}
641		854
…		…
643	if (ref $_[0]) {	856	if (ref $_[0]) {
644	_object_attach @_;	857	_object_attach @_;
645	} else {	858	} else {
646	_attach shift->_attach_registry, @_;	859	_attach shift->_attach_registry, @_;
647	}	860	}
		861	_recalc_want;
648	};	862	};
649		863
650	# all those should be optimised	864	# all those should be optimised
651	sub cf::attachable::detach {	865	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	866	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	869	delete $obj->{_attachment}{$name};
656	reattach ($obj);	870	reattach ($obj);
657	} else {	871	} else {
658	Carp::croak "cannot, currently, detach class attachments";	872	Carp::croak "cannot, currently, detach class attachments";
659	}	873	}
		874	_recalc_want;
660	};	875	};
661		876
662	sub cf::attachable::attached {	877	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	878	my ($obj, $name) = @_;
664		879
…		…
679	";	894	";
680	die if $@;	895	die if $@;
681	}	896	}
682		897
683	our $override;	898	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	899	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		900
686	sub override {	901	sub override {
687	$override = 1;	902	$override = 1;
688	@invoke_results = ();	903	@INVOKE_RESULTS = (@_);
689	}	904	}
690		905
691	sub do_invoke {	906	sub do_invoke {
692	my $event = shift;	907	my $event = shift;
693	my $callbacks = shift;	908	my $callbacks = shift;
694		909
695	@invoke_results = ();	910	@INVOKE_RESULTS = ();
696		911
697	local $override;	912	local $override;
698		913
699	for (@$callbacks) {	914	for (@$callbacks) {
700	eval { &{$_->[1]} };	915	eval { &{$_->[1]} };
…		…
717		932
718	Generate an object-specific event with the given arguments.	933	Generate an object-specific event with the given arguments.
719		934
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	935	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	936	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	937	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		938
724	=back	939	=back
725		940
726	=cut	941	=cut
727		942
728	#############################################################################	943	#############################################################################
729	# object support	944	# object support
		945	#
		946
		947	sub _can_merge {
		948	my ($ob1, $ob2) = @_;
		949
		950	local $Storable::canonical = 1;
		951	my $fob1 = Storable::freeze $ob1;
		952	my $fob2 = Storable::freeze $ob2;
		953
		954	$fob1 eq $fob2
		955	}
730		956
731	sub reattach {	957	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	958	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	959	my ($obj) = @_;
734		960
…		…
837	or return;	1063	or return;
838	$av = eval { (Storable::thaw $av)->{objs} };	1064	$av = eval { (Storable::thaw $av)->{objs} };
839	}	1065	}
840		1066
841	warn sprintf "loading %s (%d)\n",	1067	warn sprintf "loading %s (%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1068	$filename, length $data, scalar @{$av || []};
843	return ($data, $av);	1069	return ($data, $av);
844	}	1070	}
		1071
		1072	=head2 COMMAND CALLBACKS
		1073
		1074	=over 4
		1075
		1076	=cut
845		1077
846	#############################################################################	1078	#############################################################################
847	# command handling &c	1079	# command handling &c
848		1080
849	=item cf::register_command $name => \&callback($ob,$args);	1081	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1094	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1095	}
864		1096
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1097	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1098
867	Register a callbackf ro execution when the client sends an extcmd packet.	1099	Register a callback for execution when the client sends an (synchronous)
		1100	extcmd packet. Ext commands will be processed in the order they are
		1101	received by the server, like other user commands. The first argument is
		1102	the logged-in player. Ext commands can only be processed after a player
		1103	has logged in successfully.
868		1104
869	If the callback returns something, it is sent back as if reply was being	1105	If the callback returns something, it is sent back as if reply was being
870	called.	1106	called.
871		1107
		1108	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1109
		1110	Register a callback for execution when the client sends an (asynchronous)
		1111	exticmd packet. Exti commands are processed by the server as soon as they
		1112	are received, i.e. out of order w.r.t. other commands. The first argument
		1113	is a client socket. Exti commands can be received anytime, even before
		1114	log-in.
		1115
		1116	If the callback returns something, it is sent back as if reply was being
		1117	called.
		1118
872	=cut	1119	=cut
873		1120
874	sub register_extcmd {	1121	sub register_extcmd {
875	my ($name, $cb) = @_;	1122	my ($name, $cb) = @_;
876		1123
877	$EXTCMD{$name} = $cb;	1124	$EXTCMD{$name} = $cb;
		1125	}
		1126
		1127	sub register_exticmd {
		1128	my ($name, $cb) = @_;
		1129
		1130	$EXTICMD{$name} = $cb;
878	}	1131	}
879		1132
880	cf::player->attach (	1133	cf::player->attach (
881	on_command => sub {	1134	on_command => sub {
882	my ($pl, $name, $params) = @_;	1135	my ($pl, $name, $params) = @_;
…		…
891	cf::override;	1144	cf::override;
892	},	1145	},
893	on_extcmd => sub {	1146	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1147	my ($pl, $buf) = @_;
895		1148
896	my $msg = eval { from_json $buf };	1149	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1150
898	if (ref $msg) {	1151	if (ref $msg) {
		1152	my ($type, $reply, @payload) =
		1153	"ARRAY" eq ref $msg
		1154	? @$msg
		1155	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1156
		1157	my @reply;
		1158
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1159	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1160	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1161	}
		1162
		1163	$pl->ext_reply ($reply, @reply)
		1164	if $reply;
		1165
904	} else {	1166	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1167	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1168	}
907		1169
908	cf::override;	1170	cf::override;
909	},	1171	},
910	);	1172	);
911		1173
912	sub load_extension {
913	my ($path) = @_;
914
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
916	my $base = $1;
917	my $pkg = $1;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}
940	die $@;
941	}
942
943	push @EXTS, $pkg;
944	}
945
946	sub load_extensions {	1174	sub load_extensions {
		1175	cf::sync_job {
		1176	my %todo;
		1177
947	for my $ext (<$LIBDIR/*.ext>) {	1178	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1179	next unless -r $path;
949	eval {	1180
950	load_extension $ext;	1181	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1182	my $base = $1;
		1183	my $pkg = $1;
		1184	$pkg =~ s/[^[:word:]]/_/g;
		1185	$pkg = "ext::$pkg";
		1186
		1187	open my $fh, "<:utf8", $path
		1188	or die "$path: $!";
		1189
		1190	my $source = do { local $/; <$fh> };
		1191
		1192	my %ext = (
		1193	path => $path,
		1194	base => $base,
		1195	pkg => $pkg,
		1196	);
		1197
		1198	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1199	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1200
		1201	$ext{source} =
		1202	"package $pkg; use strict; use utf8;\n"
		1203	. "#line 1 \"$path\"\n{\n"
		1204	. $source
		1205	. "\n};\n1";
		1206
		1207	$todo{$base} = \%ext;
		1208	}
		1209
		1210	my %done;
		1211	while (%todo) {
		1212	my $progress;
		1213
		1214	while (my ($k, $v) = each %todo) {
		1215	for (split /,\s*/, $v->{meta}{depends}) {
		1216	goto skip
		1217	unless exists $done{$_};
		1218	}
		1219
		1220	warn "... loading '$k' into '$v->{pkg}'\n";
		1221
		1222	unless (eval $v->{source}) {
		1223	my $msg = $@ ? "$v->{path}: $@\n"
		1224	: "$v->{base}: extension inactive.\n";
		1225
		1226	if (exists $v->{meta}{mandatory}) {
		1227	warn $msg;
		1228	warn "mandatory extension failed to load, exiting.\n";
		1229	exit 1;
		1230	}
		1231
		1232	warn $msg;
		1233	}
		1234
		1235	$done{$k} = delete $todo{$k};
		1236	push @EXTS, $v->{pkg};
		1237	$progress = 1;
951	1	1238	}
952	} or warn "$ext not loaded: $@";	1239
		1240	skip:
		1241	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1242	unless $progress;
		1243	}
953	}	1244	};
954	}	1245	}
955		1246
956	#############################################################################	1247	#############################################################################
		1248
		1249	=back
957		1250
958	=head2 CORE EXTENSIONS	1251	=head2 CORE EXTENSIONS
959		1252
960	Functions and methods that extend core crossfire objects.	1253	Functions and methods that extend core crossfire objects.
961		1254
…		…
1032		1325
1033	aio_mkdir playerdir $pl, 0770;	1326	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1327	$pl->{last_save} = $cf::RUNTIME;
1035		1328
1036	$pl->save_pl ($path);	1329	$pl->save_pl ($path);
1037	Coro::cede;	1330	cf::cede_to_tick;
1038	}	1331	}
1039		1332
1040	sub new($) {	1333	sub new($) {
1041	my ($login) = @_;	1334	my ($login) = @_;
1042		1335
…		…
1046	$self->{deny_save} = 1;	1339	$self->{deny_save} = 1;
1047		1340
1048	$cf::PLAYER{$login} = $self;	1341	$cf::PLAYER{$login} = $self;
1049		1342
1050	$self	1343	$self
		1344	}
		1345
		1346	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1347
		1348	=cut
		1349
		1350	sub send_msg {
		1351	my $ns = shift->ns
		1352	or return;
		1353	$ns->send_msg (@_);
1051	}	1354	}
1052		1355
1053	=item $pl->quit_character	1356	=item $pl->quit_character
1054		1357
1055	Nukes the player without looking back. If logged in, the connection will	1358	Nukes the player without looking back. If logged in, the connection will
…		…
1149	}	1452	}
1150		1453
1151	\@paths	1454	\@paths
1152	}	1455	}
1153		1456
		1457	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1458
		1459	Expand crossfire pod fragments into protocol xml.
		1460
		1461	=cut
		1462
		1463	sub expand_cfpod {
		1464	((my $self), (local $_)) = @_;
		1465
		1466	# escape & and <
		1467	s/&/&amp;/g;
		1468	s/(?<![BIUGHT])</&lt;/g;
		1469
		1470	# this is buggy, it needs to properly take care of nested <'s
		1471
		1472	1 while
		1473	# replace B<>, I<>, U<> etc.
		1474	s/B<([^\>]*)>/<b>$1<\/b>/
		1475	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1476	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1477	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1478	# replace G<male|female> tags
		1479	|| s{G<([^>|]*)\|([^>]*)>}{
		1480	$self->gender ? $2 : $1
		1481	}ge
		1482	# replace H<hint text>
		1483	|| s{H<([^\>]*)>}
		1484	{
		1485	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1486	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1487	"")
		1488	[$self->{hintmode}]
		1489	}ge;
		1490
		1491	# create single paragraphs (very hackish)
		1492	s/(?<=\S)\n(?=\w)/ /g;
		1493
		1494	# compress some whitespace
		1495	s/\s+\n/\n/g; # ws line-ends
		1496	s/\n\n+/\n/g; # double lines
		1497	s/^\n+//; # beginning lines
		1498	s/\n+$//; # ending lines
		1499
		1500	$_
		1501	}
		1502
		1503	sub hintmode {
		1504	$_[0]{hintmode} = $_[1] if @_ > 1;
		1505	$_[0]{hintmode}
		1506	}
		1507
1154	=item $player->ext_reply ($msgid, %msg)	1508	=item $player->ext_reply ($msgid, @msg)
1155		1509
1156	Sends an ext reply to the player.	1510	Sends an ext reply to the player.
1157		1511
1158	=cut	1512	=cut
1159		1513
1160	sub ext_reply($$%) {	1514	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1515	my ($self, $id, @msg) = @_;
1162		1516
1163	$msg{msgid} = $id;	1517	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1518	}
1167		1519
1168	=item $player->ext_event ($type, %msg)	1520	=item $player->ext_msg ($type, @msg)
1169		1521
1170	Sends an ext event to the client.	1522	Sends an ext event to the client.
1171		1523
1172	=cut	1524	=cut
1173		1525
1174	sub ext_event($$%) {	1526	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1527	my ($self, $type, @msg) = @_;
1176		1528
1177	$self->ns->ext_event ($type, %msg);	1529	$self->ns->ext_msg ($type, @msg);
1178	}	1530	}
1179		1531
1180	=head3 cf::region	1532	=head3 cf::region
1181		1533
1182	=over 4	1534	=over 4
…		…
1185		1537
1186	package cf::region;	1538	package cf::region;
1187		1539
1188	=item cf::region::find_by_path $path	1540	=item cf::region::find_by_path $path
1189		1541
1190	Tries to decuce the probable region for a map knowing only its path.	1542	Tries to decuce the likely region for a map knowing only its path.
1191		1543
1192	=cut	1544	=cut
1193		1545
1194	sub find_by_path($) {	1546	sub find_by_path($) {
1195	my ($path) = @_;	1547	my ($path) = @_;
1196		1548
1197	my ($match, $specificity);	1549	my ($match, $specificity);
1198		1550
1199	for my $region (list) {	1551	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1552	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1553	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1554	if $region->specificity > $specificity;
1203	}	1555	}
1204	}	1556	}
1205		1557
…		…
1269	my ($self, $merge) = @_;	1621	my ($self, $merge) = @_;
1270		1622
1271	# we have to keep some variables in memory intact	1623	# we have to keep some variables in memory intact
1272	local $self->{path};	1624	local $self->{path};
1273	local $self->{load_path};	1625	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1626
1277	$self->SUPER::thawer_merge ($merge);	1627	$self->SUPER::thawer_merge ($merge);
1278	}	1628	}
1279		1629
1280	sub normalise {	1630	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1677	$self->init; # pass $1 etc.
1328	return $self;	1678	return $self;
1329	}	1679	}
1330	}	1680	}
1331		1681
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1682	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1683	()
1334	}	1684	}
1335		1685
1336	sub init {	1686	sub init {
1337	my ($self) = @_;	1687	my ($self) = @_;
…		…
1378	sub change_all_map_light {	1728	sub change_all_map_light {
1379	my ($change) = @_;	1729	my ($change) = @_;
1380		1730
1381	$_->change_map_light ($change)	1731	$_->change_map_light ($change)
1382	for grep $_->outdoor, values %cf::MAP;	1732	for grep $_->outdoor, values %cf::MAP;
		1733	}
		1734
		1735	sub decay_objects {
		1736	my ($self) = @_;
		1737
		1738	return if $self->{deny_reset};
		1739
		1740	$self->do_decay_objects;
1383	}	1741	}
1384		1742
1385	sub unlink_save {	1743	sub unlink_save {
1386	my ($self) = @_;	1744	my ($self) = @_;
1387		1745
…		…
1445	$self->load_header_orig	1803	$self->load_header_orig
1446	or return;	1804	or return;
1447	$self->prepare_orig;	1805	$self->prepare_orig;
1448	}	1806	}
1449		1807
		1808	$self->{deny_reset} = 1
		1809	if $self->no_reset;
		1810
1450	$self->default_region (cf::region::find_by_path $self->{path})	1811	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1812	unless $self->default_region;
1452		1813
1453	1	1814	1
1454	}	1815	}
…		…
1469	$map->{last_save} = $cf::RUNTIME;	1830	$map->{last_save} = $cf::RUNTIME;
1470		1831
1471	$map->load_header	1832	$map->load_header
1472	or return;	1833	or return;
1473		1834
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1835	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1836	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1837	#$cf::WAIT_FOR_TICK->wait;
1477	$map->reset;	1838	$map->reset;
1478	undef $guard;	1839	undef $guard;
1479	return find $path;	1840	return find $path;
…		…
1492	local $self->{deny_reset} = 1; # loading can take a long time	1853	local $self->{deny_reset} = 1; # loading can take a long time
1493		1854
1494	my $path = $self->{path};	1855	my $path = $self->{path};
1495		1856
1496	{	1857	{
		1858	my $guard1 = cf::lock_acquire "map_data:$path";
1497	my $guard = cf::lock_acquire "map_load:$path";	1859	my $guard2 = cf::lock_acquire "map_load:$path";
1498		1860
1499	return if $self->in_memory != cf::MAP_SWAPPED;	1861	return if $self->in_memory != cf::MAP_SWAPPED;
1500		1862
1501	$self->in_memory (cf::MAP_LOADING);	1863	$self->in_memory (cf::MAP_LOADING);
1502		1864
1503	$self->alloc;	1865	$self->alloc;
1504		1866
1505	$self->pre_load;	1867	$self->pre_load;
1506	Coro::cede;	1868	cf::cede_to_tick;
1507		1869
1508	$self->_load_objects ($self->{load_path}, 1)	1870	$self->_load_objects ($self->{load_path}, 1)
1509	or return;	1871	or return;
1510		1872
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1873	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
…		…
1517	$self->clear_unique_items;	1879	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	1880	$self->_load_objects ($uniq, 0);
1519	}	1881	}
1520	}	1882	}
1521		1883
1522	Coro::cede;	1884	cf::cede_to_tick;
1523	# now do the right thing for maps	1885	# now do the right thing for maps
1524	$self->link_multipart_objects;	1886	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	1887	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	1888	unless $self->difficulty;
1527	Coro::cede;	1889	cf::cede_to_tick;
1528		1890
1529	unless ($self->{deny_activate}) {	1891	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	1892	$self->decay_objects;
1531	$self->fix_auto_apply;	1893	$self->fix_auto_apply;
1532	$self->update_buttons;	1894	$self->update_buttons;
1533	Coro::cede;	1895	cf::cede_to_tick;
1534	$self->set_darkness_map;	1896	$self->set_darkness_map;
1535	Coro::cede;	1897	cf::cede_to_tick;
1536	$self->activate;	1898	$self->activate;
1537	}	1899	}
1538		1900
		1901	$self->{last_save} = $cf::RUNTIME;
		1902	$self->last_access ($cf::RUNTIME);
		1903
1539	$self->in_memory (cf::MAP_IN_MEMORY);	1904	$self->in_memory (cf::MAP_IN_MEMORY);
1540
1541	undef $guard;
1542	}	1905	}
1543		1906
1544	$self->post_load;	1907	$self->post_load;
1545	}	1908	}
1546		1909
…		…
1548	my ($self, $ob) = @_;	1911	my ($self, $ob) = @_;
1549		1912
1550	return find "~" . $ob->name . "/" . $self->{path}	1913	return find "~" . $ob->name . "/" . $self->{path}
1551	if $self->per_player;	1914	if $self->per_player;
1552		1915
		1916	# return find "?party/" . $ob->name . "/" . $self->{path}
		1917	# if $self->per_party;
		1918
1553	$self	1919	$self
1554	}	1920	}
1555		1921
1556	# find and load all maps in the 3x3 area around a map	1922	# find and load all maps in the 3x3 area around a map
1557	sub load_diag {	1923	sub load_neighbours {
1558	my ($map) = @_;	1924	my ($map) = @_;
1559		1925
1560	my @diag; # diagonal neighbours	1926	my @neigh; # diagonal neighbours
1561		1927
1562	for (0 .. 3) {	1928	for (0 .. 3) {
1563	my $neigh = $map->tile_path ($_)	1929	my $neigh = $map->tile_path ($_)
1564	or next;	1930	or next;
1565	$neigh = find $neigh, $map	1931	$neigh = find $neigh, $map
1566	or next;	1932	or next;
1567	$neigh->load;	1933	$neigh->load;
1568		1934
		1935	push @neigh,
1569	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1936	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1570	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1937	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1571	}	1938	}
1572		1939
1573	for (@diag) {	1940	for (grep defined $_->[0], @neigh) {
		1941	my ($path, $origin) = @$_;
1574	my $neigh = find @$_	1942	my $neigh = find $path, $origin
1575	or next;	1943	or next;
1576	$neigh->load;	1944	$neigh->load;
1577	}	1945	}
1578	}	1946	}
1579		1947
…		…
1584	}	1952	}
1585		1953
1586	sub do_load_sync {	1954	sub do_load_sync {
1587	my ($map) = @_;	1955	my ($map) = @_;
1588		1956
		1957	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		1958	if $Coro::current == $Coro::main;
		1959
1589	cf::sync_job { $map->load };	1960	cf::sync_job { $map->load };
1590	}	1961	}
1591		1962
1592	our %MAP_PREFETCH;	1963	our %MAP_PREFETCH;
1593	our $MAP_PREFETCHER = undef;	1964	our $MAP_PREFETCHER = undef;
1594		1965
1595	sub find_async {	1966	sub find_async {
1596	my ($path, $origin) = @_;	1967	my ($path, $origin, $load) = @_;
1597		1968
1598	$path = normalise $path, $origin && $origin->{path};	1969	$path = normalise $path, $origin && $origin->{path};
1599		1970
1600	if (my $map = $cf::MAP{$path}) {	1971	if (my $map = $cf::MAP{$path}) {
1601	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1972	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1602	}	1973	}
1603		1974
1604	undef $MAP_PREFETCH{$path};	1975	$MAP_PREFETCH{$path} |= $load;
		1976
1605	$MAP_PREFETCHER ||= cf::async {	1977	$MAP_PREFETCHER ||= cf::async {
1606	while (%MAP_PREFETCH) {	1978	while (%MAP_PREFETCH) {
1607	for my $path (keys %MAP_PREFETCH) {	1979	while (my ($k, $v) = each %MAP_PREFETCH) {
1608	my $map = find $path	1980	if (my $map = find $k) {
1609	or next;
1610	$map->load;	1981	$map->load if $v;
		1982	}
1611		1983
1612	delete $MAP_PREFETCH{$path};	1984	delete $MAP_PREFETCH{$k};
1613	}	1985	}
1614	}	1986	}
1615	undef $MAP_PREFETCHER;	1987	undef $MAP_PREFETCHER;
1616	};	1988	};
1617	$MAP_PREFETCHER->prio (6);	1989	$MAP_PREFETCHER->prio (6);
…		…
1620	}	1992	}
1621		1993
1622	sub save {	1994	sub save {
1623	my ($self) = @_;	1995	my ($self) = @_;
1624		1996
1625	my $lock = cf::lock_acquire "map_data:" . $self->path;	1997	my $lock = cf::lock_acquire "map_data:$self->{path}";
1626		1998
1627	$self->{last_save} = $cf::RUNTIME;	1999	$self->{last_save} = $cf::RUNTIME;
1628		2000
1629	return unless $self->dirty;	2001	return unless $self->dirty;
1630		2002
…		…
1653	my ($self) = @_;	2025	my ($self) = @_;
1654		2026
1655	# save first because save cedes	2027	# save first because save cedes
1656	$self->save;	2028	$self->save;
1657		2029
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;	2030	my $lock = cf::lock_acquire "map_data:$self->{path}";
1659		2031
1660	return if $self->players;	2032	return if $self->players;
1661	return if $self->in_memory != cf::MAP_IN_MEMORY;	2033	return if $self->in_memory != cf::MAP_IN_MEMORY;
1662	return if $self->{deny_save};	2034	return if $self->{deny_save};
1663		2035
…		…
1667		2039
1668	sub reset_at {	2040	sub reset_at {
1669	my ($self) = @_;	2041	my ($self) = @_;
1670		2042
1671	# TODO: safety, remove and allow resettable per-player maps	2043	# TODO: safety, remove and allow resettable per-player maps
1672	return 1e99 if $self->isa ("ext::map_per_player");#d#
1673	return 1e99 if $self->{deny_reset};	2044	return 1e99 if $self->{deny_reset};
1674		2045
1675	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2046	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1676	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2047	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1677		2048
…		…
1688	my ($self) = @_;	2059	my ($self) = @_;
1689		2060
1690	my $lock = cf::lock_acquire "map_data:$self->{path}";	2061	my $lock = cf::lock_acquire "map_data:$self->{path}";
1691		2062
1692	return if $self->players;	2063	return if $self->players;
1693	return if $self->isa ("ext::map_per_player");#d#
1694		2064
1695	warn "resetting map ", $self->path;#d#	2065	warn "resetting map ", $self->path;
1696		2066
1697	$self->in_memory (cf::MAP_SWAPPED);	2067	$self->in_memory (cf::MAP_SWAPPED);
1698		2068
1699	# need to save uniques path	2069	# need to save uniques path
1700	unless ($self->{deny_save}) {	2070	unless ($self->{deny_save}) {
…		…
1717	my $nuke_counter = "aaaa";	2087	my $nuke_counter = "aaaa";
1718		2088
1719	sub nuke {	2089	sub nuke {
1720	my ($self) = @_;	2090	my ($self) = @_;
1721		2091
		2092	{
		2093	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2094
1722	delete $cf::MAP{$self->path};	2095	delete $cf::MAP{$self->path};
1723		2096
1724	$self->unlink_save;	2097	$self->unlink_save;
1725		2098
1726	bless $self, "cf::map";	2099	bless $self, "cf::map";
1727	delete $self->{deny_reset};	2100	delete $self->{deny_reset};
1728	$self->{deny_save} = 1;	2101	$self->{deny_save} = 1;
1729	$self->reset_timeout (1);	2102	$self->reset_timeout (1);
1730	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2103	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1731		2104
1732	$cf::MAP{$self->path} = $self;	2105	$cf::MAP{$self->path} = $self;
		2106	}
1733		2107
1734	$self->reset; # polite request, might not happen	2108	$self->reset; # polite request, might not happen
		2109	}
		2110
		2111	=item $maps = cf::map::tmp_maps
		2112
		2113	Returns an arrayref with all map paths of currently instantiated and saved
		2114	maps. May block.
		2115
		2116	=cut
		2117
		2118	sub tmp_maps() {
		2119	[
		2120	map {
		2121	utf8::decode $_;
		2122	/\.map$/
		2123	? normalise $_
		2124	: ()
		2125	} @{ aio_readdir $TMPDIR or [] }
		2126	]
		2127	}
		2128
		2129	=item $maps = cf::map::random_maps
		2130
		2131	Returns an arrayref with all map paths of currently instantiated and saved
		2132	random maps. May block.
		2133
		2134	=cut
		2135
		2136	sub random_maps() {
		2137	[
		2138	map {
		2139	utf8::decode $_;
		2140	/\.map$/
		2141	? normalise "?random/$_"
		2142	: ()
		2143	} @{ aio_readdir $RANDOMDIR or [] }
		2144	]
1735	}	2145	}
1736		2146
1737	=item cf::map::unique_maps	2147	=item cf::map::unique_maps
1738		2148
1739	Returns an arrayref of paths of all shared maps that have	2149	Returns an arrayref of paths of all shared maps that have
1740	instantiated unique items. May block.	2150	instantiated unique items. May block.
1741		2151
1742	=cut	2152	=cut
1743		2153
1744	sub unique_maps() {	2154	sub unique_maps() {
1745	my $files = aio_readdir $UNIQUEDIR	2155	[
1746	or return;	2156	map {
1747
1748	my @paths;
1749
1750	for (@$files) {
1751	utf8::decode $_;	2157	utf8::decode $_;
1752	next if /\.pst$/;	2158	/\.map$/
1753	next unless /^$PATH_SEP/o;	2159	? normalise $_
1754		2160	: ()
1755	push @paths, cf::map::normalise $_;	2161	} @{ aio_readdir $UNIQUEDIR or [] }
1756	}	2162	]
1757
1758	\@paths
1759	}	2163	}
1760		2164
1761	package cf;	2165	package cf;
1762		2166
1763	=back	2167	=back
…		…
1809		2213
1810	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2214	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1811		2215
1812	if ($self->{record_replies}) {	2216	if ($self->{record_replies}) {
1813	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2217	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2218
1814	} else {	2219	} else {
		2220	my $pl = $self->contr;
		2221
		2222	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2223	my $dialog = $pl->{npc_dialog};
		2224	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2225
		2226	} else {
1815	$msg = $npc->name . " says: $msg" if $npc;	2227	$msg = $npc->name . " says: $msg" if $npc;
1816	$self->message ($msg, $flags);	2228	$self->message ($msg, $flags);
		2229	}
1817	}	2230	}
		2231	}
		2232
		2233	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2234
		2235	=cut
		2236
		2237	sub cf::object::send_msg {
		2238	my $pl = shift->contr
		2239	or return;
		2240	$pl->send_msg (@_);
1818	}	2241	}
1819		2242
1820	=item $player_object->may ("access")	2243	=item $player_object->may ("access")
1821		2244
1822	Returns wether the given player is authorized to access resource "access"	2245	Returns wether the given player is authorized to access resource "access"
…		…
1869	$self->deactivate_recursive;	2292	$self->deactivate_recursive;
1870		2293
1871	return if UNIVERSAL::isa $self->map, "ext::map_link";	2294	return if UNIVERSAL::isa $self->map, "ext::map_link";
1872		2295
1873	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2296	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1874	if $self->map;	2297	if $self->map && $self->map->{path} ne "{link}";
1875		2298
1876	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2299	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1877	}	2300	}
1878		2301
1879	sub cf::object::player::leave_link {	2302	sub cf::object::player::leave_link {
1880	my ($self, $map, $x, $y) = @_;	2303	my ($self, $map, $x, $y) = @_;
		2304
		2305	return unless $self->contr->active;
1881		2306
1882	my $link_pos = delete $self->{_link_pos};	2307	my $link_pos = delete $self->{_link_pos};
1883		2308
1884	unless ($map) {	2309	unless ($map) {
1885	# restore original map position	2310	# restore original map position
…		…
1899	# use -1 or undef as default coordinates, not 0, 0	2324	# use -1 or undef as default coordinates, not 0, 0
1900	($x, $y) = ($map->enter_x, $map->enter_y)	2325	($x, $y) = ($map->enter_x, $map->enter_y)
1901	if $x <=0 && $y <= 0;	2326	if $x <=0 && $y <= 0;
1902		2327
1903	$map->load;	2328	$map->load;
1904	$map->load_diag;	2329	$map->load_neighbours;
1905		2330
1906	return unless $self->contr->active;	2331	return unless $self->contr->active;
1907	$self->activate_recursive;	2332	$self->activate_recursive;
1908		2333
1909	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2334	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1910	$self->enter_map ($map, $x, $y);	2335	$self->enter_map ($map, $x, $y);
1911	}	2336	}
1912		2337
1913	cf::player->attach (	2338	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1914	on_logout => sub {
1915	my ($pl) = @_;
1916		2339
1917	# abort map switching before logout	2340	Moves the player to the given map-path and coordinates by first freezing
1918	if ($pl->ob->{_link_pos}) {	2341	her, loading and preparing them map, calling the provided $check callback
1919	cf::sync_job {	2342	that has to return the map if sucecssful, and then unfreezes the player on
1920	$pl->ob->leave_link	2343	the new (success) or old (failed) map position. In either case, $done will
1921	};	2344	be called at the end of this process.
1922	}
1923	},
1924	on_login => sub {
1925	my ($pl) = @_;
1926		2345
1927	# try to abort aborted map switching on player login :)
1928	# should happen only on crashes
1929	if ($pl->ob->{_link_pos}) {
1930	$pl->ob->enter_link;
1931	(async {
1932	$pl->ob->reply (undef,
1933	"There was an internal problem at your last logout, "
1934	. "the server will try to bring you to your intended destination in a second.",
1935	cf::NDI_RED);
1936	# we need this sleep as the login has a concurrent enter_exit running
1937	# and this sleep increases chances of the player not ending up in scorn
1938	Coro::Timer::sleep 1;
1939	$pl->ob->leave_link;
1940	})->prio (2);
1941	}
1942	},
1943	);
1944
1945	=item $player_object->goto ($path, $x, $y)
1946
1947	=cut	2346	=cut
		2347
		2348	our $GOTOGEN;
1948		2349
1949	sub cf::object::player::goto {	2350	sub cf::object::player::goto {
1950	my ($self, $path, $x, $y) = @_;	2351	my ($self, $path, $x, $y, $check, $done) = @_;
		2352
		2353	# do generation counting so two concurrent goto's will be executed in-order
		2354	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1951		2355
1952	$self->enter_link;	2356	$self->enter_link;
1953		2357
1954	(async {	2358	(async {
1955	my $map = eval {	2359	my $map = eval {
1956	my $map = cf::map::find $path;	2360	my $map = cf::map::find $path;
		2361
		2362	if ($map) {
1957	$map = $map->customise_for ($self) if $map;	2363	$map = $map->customise_for ($self);
		2364	$map = $check->($map) if $check && $map;
		2365	} else {
		2366	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2367	}
		2368
1958	$map	2369	$map
		2370	};
		2371
		2372	if ($@) {
		2373	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2374	LOG llevError | logBacktrace, Carp::longmess $@;
1959	} or	2375	}
1960	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1961		2376
		2377	if ($gen == $self->{_goto_generation}) {
		2378	delete $self->{_goto_generation};
1962	$self->leave_link ($map, $x, $y);	2379	$self->leave_link ($map, $x, $y);
		2380	}
		2381
		2382	$done->() if $done;
1963	})->prio (1);	2383	})->prio (1);
1964	}	2384	}
1965		2385
1966	=item $player_object->enter_exit ($exit_object)	2386	=item $player_object->enter_exit ($exit_object)
1967		2387
…		…
2036	my $hp = $exit->stats->hp;	2456	my $hp = $exit->stats->hp;
2037	my $sp = $exit->stats->sp;	2457	my $sp = $exit->stats->sp;
2038		2458
2039	$self->enter_link;	2459	$self->enter_link;
2040		2460
		2461	# if exit is damned, update players death & WoR home-position
		2462	$self->contr->savebed ($slaying, $hp, $sp)
		2463	if $exit->flag (FLAG_DAMNED);
		2464
2041	(async {	2465	(async {
2042	$self->deactivate_recursive; # just to be sure	2466	$self->deactivate_recursive; # just to be sure
2043	unless (eval {	2467	unless (eval {
2044	$self->goto ($slaying, $hp, $sp);	2468	$self->goto ($slaying, $hp, $sp);
2045		2469
…		…
2072		2496
2073	utf8::encode $text;	2497	utf8::encode $text;
2074	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2498	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2075	}	2499	}
2076		2500
		2501	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2502
		2503	Send a drawinfo or msg packet to the client, formatting the msg for the
		2504	client if neccessary. C<$type> should be a string identifying the type of
		2505	the message, with C<log> being the default. If C<$color> is negative, suppress
		2506	the message unless the client supports the msg packet.
		2507
		2508	=cut
		2509
		2510	our %CHANNEL = (
		2511	"c/identify" => {
		2512	id => "identify",
		2513	title => "Identify",
		2514	reply => undef,
		2515	tooltip => "Items recently identified",
		2516	},
		2517	"c/examine" => {
		2518	id => "examine",
		2519	title => "Examine",
		2520	reply => undef,
		2521	tooltip => "Signs and other items you examined",
		2522	},
		2523	);
		2524
		2525	sub cf::client::send_msg {
		2526	my ($self, $channel, $msg, $color, @extra) = @_;
		2527
		2528	$msg = $self->pl->expand_cfpod ($msg);
		2529
		2530	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2531
		2532	# check predefined channels, for the benefit of C
		2533	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2534
		2535	if (ref $channel) {
		2536	# send meta info to client, if not yet sent
		2537	unless (exists $self->{channel}{$channel->{id}}) {
		2538	$self->{channel}{$channel->{id}} = $channel;
		2539	$self->ext_msg (channel_info => $channel);
		2540	}
		2541
		2542	$channel = $channel->{id};
		2543	}
		2544
		2545	return unless @extra || length $msg;
		2546
		2547	if ($self->can_msg) {
		2548	# default colour, mask it out
		2549	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2550	if $color & cf::NDI_DEF;
		2551
		2552	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2553	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2554	} else {
		2555	if ($color >= 0) {
		2556	# replace some tags by gcfclient-compatible ones
		2557	for ($msg) {
		2558	1 while
		2559	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2560	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2561	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2562	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2563	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2564	}
		2565
		2566	$color &= cf::NDI_COLOR_MASK;
		2567
		2568	utf8::encode $msg;
		2569
		2570	if (0 && $msg =~ /\[/) {
		2571	# COMMAND/INFO
		2572	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2573	} else {
		2574	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2575	$self->send_packet ("drawinfo $color $msg")
		2576	}
		2577	}
		2578	}
		2579	}
		2580
2077	=item $client->ext_event ($type, %msg)	2581	=item $client->ext_msg ($type, @msg)
2078		2582
2079	Sends an exti event to the client.	2583	Sends an ext event to the client.
2080		2584
2081	=cut	2585	=cut
2082		2586
2083	sub cf::client::ext_event($$%) {	2587	sub cf::client::ext_msg($$@) {
2084	my ($self, $type, %msg) = @_;	2588	my ($self, $type, @msg) = @_;
2085		2589
		2590	if ($self->extcmd == 2) {
		2591	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2592	} elsif ($self->extcmd == 1) { # TODO: remove
2086	$msg{msgtype} = "event_$type";	2593	push @msg, msgtype => "event_$type";
2087	$self->send_packet ("ext " . cf::to_json \%msg);	2594	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2595	}
		2596	}
		2597
		2598	=item $client->ext_reply ($msgid, @msg)
		2599
		2600	Sends an ext reply to the client.
		2601
		2602	=cut
		2603
		2604	sub cf::client::ext_reply($$@) {
		2605	my ($self, $id, @msg) = @_;
		2606
		2607	if ($self->extcmd == 2) {
		2608	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2609	} elsif ($self->extcmd == 1) {
		2610	#TODO: version 1, remove
		2611	unshift @msg, msgtype => "reply", msgid => $id;
		2612	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2613	}
2088	}	2614	}
2089		2615
2090	=item $success = $client->query ($flags, "text", \&cb)	2616	=item $success = $client->query ($flags, "text", \&cb)
2091		2617
2092	Queues a query to the client, calling the given callback with	2618	Queues a query to the client, calling the given callback with
2093	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2619	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2094	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2620	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2095		2621
2096	Queries can fail, so check the return code. Or don't, as queries will become	2622	Queries can fail, so check the return code. Or don't, as queries will
2097	reliable at some point in the future.	2623	become reliable at some point in the future.
2098		2624
2099	=cut	2625	=cut
2100		2626
2101	sub cf::client::query {	2627	sub cf::client::query {
2102	my ($self, $flags, $text, $cb) = @_;	2628	my ($self, $flags, $text, $cb) = @_;
…		…
2110	utf8::encode $text;	2636	utf8::encode $text;
2111	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2637	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2112		2638
2113	$self->send_packet ($self->{query_queue}[0][0])	2639	$self->send_packet ($self->{query_queue}[0][0])
2114	if @{ $self->{query_queue} } == 1;	2640	if @{ $self->{query_queue} } == 1;
		2641
		2642	1
2115	}	2643	}
2116		2644
2117	cf::client->attach (	2645	cf::client->attach (
		2646	on_connect => sub {
		2647	my ($ns) = @_;
		2648
		2649	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2650	},
2118	on_reply => sub {	2651	on_reply => sub {
2119	my ($ns, $msg) = @_;	2652	my ($ns, $msg) = @_;
2120		2653
2121	# this weird shuffling is so that direct followup queries	2654	# this weird shuffling is so that direct followup queries
2122	# get handled first	2655	# get handled first
…		…
2134	} else {	2667	} else {
2135	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2668	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2136	}	2669	}
2137	}	2670	}
2138	},	2671	},
		2672	on_exticmd => sub {
		2673	my ($ns, $buf) = @_;
		2674
		2675	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2676
		2677	if (ref $msg) {
		2678	my ($type, $reply, @payload) =
		2679	"ARRAY" eq ref $msg
		2680	? @$msg
		2681	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2682
		2683	my @reply;
		2684
		2685	if (my $cb = $EXTICMD{$type}) {
		2686	@reply = $cb->($ns, @payload);
		2687	}
		2688
		2689	$ns->ext_reply ($reply, @reply)
		2690	if $reply;
		2691
		2692	} else {
		2693	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2694	}
		2695
		2696	cf::override;
		2697	},
2139	);	2698	);
2140		2699
2141	=item $client->async (\&cb)	2700	=item $client->async (\&cb)
2142		2701
2143	Create a new coroutine, running the specified callback. The coroutine will	2702	Create a new coroutine, running the specified callback. The coroutine will
…		…
2184	our $safe = new Safe "safe";	2743	our $safe = new Safe "safe";
2185	our $safe_hole = new Safe::Hole;	2744	our $safe_hole = new Safe::Hole;
2186		2745
2187	$SIG{FPE} = 'IGNORE';	2746	$SIG{FPE} = 'IGNORE';
2188		2747
2189	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2748	$safe->permit_only (Opcode::opset qw(
		2749	:base_core :base_mem :base_orig :base_math
		2750	grepstart grepwhile mapstart mapwhile
		2751	sort time
		2752	));
2190		2753
2191	# here we export the classes and methods available to script code	2754	# here we export the classes and methods available to script code
2192		2755
2193	=pod	2756	=pod
2194		2757
2195	The following functions and methods are available within a safe environment:	2758	The following functions and methods are available within a safe environment:
2196		2759
2197	cf::object contr pay_amount pay_player map	2760	cf::object
		2761	contr pay_amount pay_player map x y force_find force_add
		2762	insert remove name archname title slaying race decrease_ob_nr
		2763
2198	cf::object::player player	2764	cf::object::player
2199	cf::player peaceful	2765	player
2200	cf::map trigger	2766
		2767	cf::player
		2768	peaceful
		2769
		2770	cf::map
		2771	trigger
2201		2772
2202	=cut	2773	=cut
2203		2774
2204	for (	2775	for (
2205	["cf::object" => qw(contr pay_amount pay_player map)],	2776	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2777	insert remove inv name archname title slaying race
		2778	decrease_ob_nr)],
2206	["cf::object::player" => qw(player)],	2779	["cf::object::player" => qw(player)],
2207	["cf::player" => qw(peaceful)],	2780	["cf::player" => qw(peaceful)],
2208	["cf::map" => qw(trigger)],	2781	["cf::map" => qw(trigger)],
2209	) {	2782	) {
2210	no strict 'refs';	2783	no strict 'refs';
…		…
2281	=back	2854	=back
2282		2855
2283	=cut	2856	=cut
2284		2857
2285	#############################################################################	2858	#############################################################################
2286
2287	=head2 EXTENSION DATABASE SUPPORT
2288
2289	Crossfire maintains a very simple database for extension use. It can
2290	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2291	convert to/from binary).
2292
2293	The parameter C<$family> should best start with the name of the extension
2294	using it, it should be unique.
2295
2296	=over 4
2297
2298	=item $value = cf::db_get $family => $key
2299
2300	Returns a single value from the database.
2301
2302	=item cf::db_put $family => $key => $value
2303
2304	Stores the given C<$value> in the family.
2305
2306	=cut
2307
2308	our $DB;
2309
2310	sub db_init {
2311	unless ($DB) {
2312	$DB = BDB::db_create $DB_ENV;
2313
2314	cf::sync_job {
2315	eval {
2316	$DB->set_flags (BDB::CHKSUM);
2317
2318	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2319	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2320	cf::cleanup "db_open(db): $!" if $!;
2321	};
2322	cf::cleanup "db_open(db): $@" if $@;
2323	};
2324	}
2325	}
2326
2327	sub db_get($$) {
2328	my $key = "$_[0]/$_[1]";
2329
2330	cf::sync_job {
2331	BDB::db_get $DB, undef, $key, my $data;
2332
2333	$! ? ()
2334	: $data
2335	}
2336	}
2337
2338	sub db_put($$$) {
2339	BDB::dbreq_pri 4;
2340	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2341	}
2342
2343	=item cf::cache $id => [$paths...], $processversion => $process
2344
2345	Generic caching function that returns the value of the resource $id,
2346	caching and regenerating as required.
2347
2348	This function can block.
2349
2350	=cut
2351
2352	sub cache {
2353	my ($id, $src, $processversion, $process) = @_;
2354
2355	my $meta =
2356	join "\x00",
2357	$processversion,
2358	map {
2359	aio_stat $_
2360	and Carp::croak "$_: $!";
2361
2362	($_, (stat _)[7,9])
2363	} @$src;
2364
2365	my $dbmeta = db_get cache => "$id/meta";
2366	if ($dbmeta ne $meta) {
2367	# changed, we may need to process
2368
2369	my @data;
2370	my $md5;
2371
2372	for (0 .. $#$src) {
2373	0 <= aio_load $src->[$_], $data[$_]
2374	or Carp::croak "$src->[$_]: $!";
2375	}
2376
2377	# if processing is expensive, check
2378	# checksum first
2379	if (1) {
2380	$md5 =
2381	join "\x00",
2382	$processversion,
2383	map {
2384	Coro::cede;
2385	($src->[$_], Digest::MD5::md5_hex $data[$_])
2386	} 0.. $#$src;
2387
2388
2389	my $dbmd5 = db_get cache => "$id/md5";
2390	if ($dbmd5 eq $md5) {
2391	db_put cache => "$id/meta", $meta;
2392
2393	return db_get cache => "$id/data";
2394	}
2395	}
2396
2397	my $t1 = Time::HiRes::time;
2398	my $data = $process->(\@data);
2399	my $t2 = Time::HiRes::time;
2400
2401	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2402
2403	db_put cache => "$id/data", $data;
2404	db_put cache => "$id/md5" , $md5;
2405	db_put cache => "$id/meta", $meta;
2406
2407	return $data;
2408	}
2409
2410	db_get cache => "$id/data"
2411	}
2412
2413	=item fork_call { }, $args
2414
2415	Executes the given code block with the given arguments in a seperate
2416	process, returning the results. Everything must be serialisable with
2417	Coro::Storable. May, of course, block. Note that the executed sub may
2418	never block itself or use any form of Event handling.
2419
2420	=cut
2421
2422	sub fork_call(&@) {
2423	my ($cb, @args) = @_;
2424
2425	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2426	# or die "socketpair: $!";
2427	pipe my $fh1, my $fh2
2428	or die "pipe: $!";
2429
2430	if (my $pid = fork) {
2431	close $fh2;
2432
2433	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2434	$res = Coro::Storable::thaw $res;
2435
2436	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2437
2438	die $$res unless "ARRAY" eq ref $res;
2439
2440	return wantarray ? @$res : $res->[-1];
2441	} else {
2442	local $SIG{__WARN__};
2443	eval {
2444	local $SIG{__DIE__};
2445	close $fh1;
2446
2447	my @res = eval { $cb->(@args) };
2448	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2449	};
2450
2451	warn $@ if $@;
2452	_exit 0;
2453	}
2454	}
2455
2456
2457
2458	#############################################################################
2459	# the server's init and main functions	2859	# the server's init and main functions
2460		2860
2461	sub load_facedata($) {	2861	sub load_facedata($) {
2462	my ($path) = @_;	2862	my ($path) = @_;
		2863
		2864	# HACK to clear player env face cache, we need some signal framework
		2865	# for this (global event?)
		2866	%ext::player_env::MUSIC_FACE_CACHE = ();
		2867
		2868	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2463		2869
2464	warn "loading facedata from $path\n";	2870	warn "loading facedata from $path\n";
2465		2871
2466	my $facedata;	2872	my $facedata;
2467	0 < aio_load $path, $facedata	2873	0 < aio_load $path, $facedata
…		…
2470	$facedata = Coro::Storable::thaw $facedata;	2876	$facedata = Coro::Storable::thaw $facedata;
2471		2877
2472	$facedata->{version} == 2	2878	$facedata->{version} == 2
2473	or cf::cleanup "$path: version mismatch, cannot proceed.";	2879	or cf::cleanup "$path: version mismatch, cannot proceed.";
2474		2880
		2881	# patch in the exptable
		2882	$facedata->{resource}{"res/exp_table"} = {
		2883	type => FT_RSRC,
		2884	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		2885	};
		2886	cf::cede_to_tick;
		2887
2475	{	2888	{
2476	my $faces = $facedata->{faceinfo};	2889	my $faces = $facedata->{faceinfo};
2477		2890
2478	while (my ($face, $info) = each %$faces) {	2891	while (my ($face, $info) = each %$faces) {
2479	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2892	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2480	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2893	cf::face::set_visibility $idx, $info->{visibility};
		2894	cf::face::set_magicmap $idx, $info->{magicmap};
2481	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2895	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2482	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2896	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2483	Coro::cede;	2897
		2898	cf::cede_to_tick;
2484	}	2899	}
2485		2900
2486	while (my ($face, $info) = each %$faces) {	2901	while (my ($face, $info) = each %$faces) {
2487	next unless $info->{smooth};	2902	next unless $info->{smooth};
2488	my $idx = cf::face::find $face	2903	my $idx = cf::face::find $face
2489	or next;	2904	or next;
2490	if (my $smooth = cf::face::find $info->{smooth}) {	2905	if (my $smooth = cf::face::find $info->{smooth}) {
		2906	cf::face::set_smooth $idx, $smooth;
2491	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2907	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2492	} else {	2908	} else {
2493	warn "smooth face '$info->{smooth}' not found for face '$face'";	2909	warn "smooth face '$info->{smooth}' not found for face '$face'";
2494	}	2910	}
2495	Coro::cede;	2911
		2912	cf::cede_to_tick;
2496	}	2913	}
2497	}	2914	}
2498		2915
2499	{	2916	{
2500	my $anims = $facedata->{animinfo};	2917	my $anims = $facedata->{animinfo};
2501		2918
2502	while (my ($anim, $info) = each %$anims) {	2919	while (my ($anim, $info) = each %$anims) {
2503	cf::anim::set $anim, $info->{frames}, $info->{facings};	2920	cf::anim::set $anim, $info->{frames}, $info->{facings};
2504	Coro::cede;	2921	cf::cede_to_tick;
2505	}	2922	}
2506		2923
2507	cf::anim::invalidate_all; # d'oh	2924	cf::anim::invalidate_all; # d'oh
2508	}	2925	}
2509		2926
		2927	{
		2928	# TODO: for gcfclient pleasure, we should give resources
		2929	# that gcfclient doesn't grok a >10000 face index.
		2930	my $res = $facedata->{resource};
		2931
		2932	my $soundconf = delete $res->{"res/sound.conf"};
		2933
		2934	while (my ($name, $info) = each %$res) {
		2935	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2936	my $data;
		2937
		2938	if ($info->{type} & 1) {
		2939	# prepend meta info
		2940
		2941	my $meta = $enc->encode ({
		2942	name => $name,
		2943	%{ $info->{meta} || {} },
		2944	});
		2945
		2946	$data = pack "(w/a*)*", $meta, $info->{data};
		2947	} else {
		2948	$data = $info->{data};
		2949	}
		2950
		2951	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2952	cf::face::set_type $idx, $info->{type};
		2953
		2954	cf::cede_to_tick;
		2955	}
		2956
		2957	if ($soundconf) {
		2958	$soundconf = $enc->decode (delete $soundconf->{data});
		2959
		2960	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2961	my $sound = $soundconf->{compat}[$_]
		2962	or next;
		2963
		2964	my $face = cf::face::find "sound/$sound->[1]";
		2965	cf::sound::set $sound->[0] => $face;
		2966	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2967	}
		2968
		2969	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2970	my $face = cf::face::find "sound/$v";
		2971	cf::sound::set $k => $face;
		2972	}
		2973	}
		2974	}
		2975
2510	1	2976	1
2511	}	2977	}
2512		2978
		2979	register_exticmd fx_want => sub {
		2980	my ($ns, $want) = @_;
		2981
		2982	while (my ($k, $v) = each %$want) {
		2983	$ns->fx_want ($k, $v);
		2984	}
		2985	};
		2986
2513	sub reload_regions {	2987	sub reload_regions {
		2988	# HACK to clear player env face cache, we need some signal framework
		2989	# for this (global event?)
		2990	%ext::player_env::MUSIC_FACE_CACHE = ();
		2991
2514	load_resource_file "$MAPDIR/regions"	2992	load_resource_file "$MAPDIR/regions"
2515	or die "unable to load regions file\n";	2993	or die "unable to load regions file\n";
		2994
		2995	for (cf::region::list) {
		2996	$_->{match} = qr/$_->{match}/
		2997	if exists $_->{match};
		2998	}
2516	}	2999	}
2517		3000
2518	sub reload_facedata {	3001	sub reload_facedata {
2519	load_facedata "$DATADIR/facedata"	3002	load_facedata "$DATADIR/facedata"
2520	or die "unable to load facedata\n";	3003	or die "unable to load facedata\n";
2521	}	3004	}
2522		3005
2523	sub reload_archetypes {	3006	sub reload_archetypes {
2524	load_resource_file "$DATADIR/archetypes"	3007	load_resource_file "$DATADIR/archetypes"
2525	or die "unable to load archetypes\n";	3008	or die "unable to load archetypes\n";
		3009	#d# NEED to laod twice to resolve forward references
		3010	# this really needs to be done in an extra post-pass
		3011	# (which needs to be synchronous, so solve it differently)
		3012	load_resource_file "$DATADIR/archetypes"
		3013	or die "unable to load archetypes\n";
2526	}	3014	}
2527		3015
2528	sub reload_treasures {	3016	sub reload_treasures {
2529	load_resource_file "$DATADIR/treasures"	3017	load_resource_file "$DATADIR/treasures"
2530	or die "unable to load treasurelists\n";	3018	or die "unable to load treasurelists\n";
…		…
2533	sub reload_resources {	3021	sub reload_resources {
2534	warn "reloading resource files...\n";	3022	warn "reloading resource files...\n";
2535		3023
2536	reload_regions;	3024	reload_regions;
2537	reload_facedata;	3025	reload_facedata;
		3026	#reload_archetypes;#d#
2538	reload_archetypes;	3027	reload_archetypes;
2539	reload_treasures;	3028	reload_treasures;
2540		3029
2541	warn "finished reloading resource files\n";	3030	warn "finished reloading resource files\n";
2542	}	3031	}
2543		3032
2544	sub init {	3033	sub init {
2545	reload_resources;	3034	reload_resources;
2546	}	3035	}
2547		3036
2548	sub cfg_load {	3037	sub reload_config {
2549	open my $fh, "<:utf8", "$CONFDIR/config"	3038	open my $fh, "<:utf8", "$CONFDIR/config"
2550	or return;	3039	or return;
2551		3040
2552	local $/;	3041	local $/;
2553	*CFG = YAML::Syck::Load <$fh>;	3042	*CFG = YAML::Syck::Load <$fh>;
…		…
2573	(async {	3062	(async {
2574	Event::one_event;	3063	Event::one_event;
2575	})->prio (Coro::PRIO_MAX);	3064	})->prio (Coro::PRIO_MAX);
2576	};	3065	};
2577		3066
2578	cfg_load;	3067	reload_config;
2579	db_init;	3068	db_init;
2580	load_extensions;	3069	load_extensions;
2581		3070
2582	$TICK_WATCHER->start;	3071	$TICK_WATCHER->start;
2583	Event::loop;	3072	Event::loop;
…		…
2599	},	3088	},
2600	);	3089	);
2601	}	3090	}
2602	}	3091	}
2603		3092
		3093	sub write_runtime {
		3094	my $runtime = "$LOCALDIR/runtime";
		3095
		3096	# first touch the runtime file to show we are still running:
		3097	# the fsync below can take a very very long time.
		3098
		3099	IO::AIO::aio_utime $runtime, undef, undef;
		3100
		3101	my $guard = cf::lock_acquire "write_runtime";
		3102
		3103	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3104	or return;
		3105
		3106	my $value = $cf::RUNTIME + 90 + 10;
		3107	# 10 is the runtime save interval, for a monotonic clock
		3108	# 60 allows for the watchdog to kill the server.
		3109
		3110	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3111	and return;
		3112
		3113	# always fsync - this file is important
		3114	aio_fsync $fh
		3115	and return;
		3116
		3117	# touch it again to show we are up-to-date
		3118	aio_utime $fh, undef, undef;
		3119
		3120	close $fh
		3121	or return;
		3122
		3123	aio_rename "$runtime~", $runtime
		3124	and return;
		3125
		3126	warn "runtime file written.\n";
		3127
		3128	1
		3129	}
		3130
2604	sub emergency_save() {	3131	sub emergency_save() {
2605	my $freeze_guard = cf::freeze_mainloop;	3132	my $freeze_guard = cf::freeze_mainloop;
2606		3133
2607	warn "enter emergency perl save\n";	3134	warn "enter emergency perl save\n";
2608		3135
…		…
2683	%EXT_CORO = ();	3210	%EXT_CORO = ();
2684		3211
2685	warn "removing commands";	3212	warn "removing commands";
2686	%COMMAND = ();	3213	%COMMAND = ();
2687		3214
2688	warn "removing ext commands";	3215	warn "removing ext/exti commands";
2689	%EXTCMD = ();	3216	%EXTCMD = ();
		3217	%EXTICMD = ();
2690		3218
2691	warn "unloading/nuking all extensions";	3219	warn "unloading/nuking all extensions";
2692	for my $pkg (@EXTS) {	3220	for my $pkg (@EXTS) {
2693	warn "... unloading $pkg";	3221	warn "... unloading $pkg";
2694		3222
…		…
2737	warn "reloading cf.pm";	3265	warn "reloading cf.pm";
2738	require cf;	3266	require cf;
2739	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3267	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2740		3268
2741	warn "loading config and database again";	3269	warn "loading config and database again";
2742	cf::cfg_load;	3270	cf::reload_config;
2743		3271
2744	warn "loading extensions";	3272	warn "loading extensions";
2745	cf::load_extensions;	3273	cf::load_extensions;
2746		3274
2747	warn "reattaching attachments to objects/players";	3275	warn "reattaching attachments to objects/players";
…		…
2812	my $signal = new Coro::Signal;	3340	my $signal = new Coro::Signal;
2813	push @WAIT_FOR_TICK_BEGIN, $signal;	3341	push @WAIT_FOR_TICK_BEGIN, $signal;
2814	$signal->wait;	3342	$signal->wait;
2815	}	3343	}
2816		3344
		3345	my $min = 1e6;#d#
		3346	my $avg = 10;
2817	$TICK_WATCHER = Event->timer (	3347	$TICK_WATCHER = Event->timer (
2818	reentrant => 0,	3348	reentrant => 0,
2819	parked => 1,	3349	parked => 1,
2820	prio => 0,	3350	prio => 0,
2821	at => $NEXT_TICK || $TICK,	3351	at => $NEXT_TICK || $TICK,
…		…
2825	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3355	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2826	unless ++$bug_warning > 10;	3356	unless ++$bug_warning > 10;
2827	return;	3357	return;
2828	}	3358	}
2829		3359
2830	$NOW = Event::time;	3360	$NOW = $tick_start = Event::time;
2831		3361
2832	cf::server_tick; # one server iteration	3362	cf::server_tick; # one server iteration
		3363
		3364	0 && sync_job {#d#
		3365	for(1..10) {
		3366	my $t = Event::time;
		3367	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3368	or die;
		3369
		3370	$map->width (50);
		3371	$map->height (50);
		3372	$map->alloc;
		3373	$map->_load_objects ("/tmp/x.map", 1);
		3374	my $t = Event::time - $t;
		3375
		3376	#next unless $t < 0.0013;#d#
		3377	if ($t < $min) {
		3378	$min = $t;
		3379	}
		3380	$avg = $avg * 0.99 + $t * 0.01;
		3381	}
		3382	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3383	exit 0;
		3384	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3385	};
2833		3386
2834	$RUNTIME += $TICK;	3387	$RUNTIME += $TICK;
2835	$NEXT_TICK += $TICK;	3388	$NEXT_TICK += $TICK;
2836		3389
2837	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3390	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2843	}	3396	}
2844		3397
2845	# my $AFTER = Event::time;	3398	# my $AFTER = Event::time;
2846	# warn $AFTER - $NOW;#d#	3399	# warn $AFTER - $NOW;#d#
2847		3400
		3401	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3402	$sig->send;
		3403	}
		3404	while (my $sig = shift @WAIT_FOR_TICK) {
		3405	$sig->send;
		3406	}
		3407
		3408	$NOW = Event::time;
		3409
2848	# if we are delayed by four ticks or more, skip them all	3410	# if we are delayed by four ticks or more, skip them all
2849	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3411	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2850		3412
2851	$TICK_WATCHER->at ($NEXT_TICK);	3413	$TICK_WATCHER->at ($NEXT_TICK);
2852	$TICK_WATCHER->start;	3414	$TICK_WATCHER->start;
2853		3415
2854	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3416	$LOAD = ($NOW - $tick_start) / $TICK;
2855	$sig->send;	3417	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2856	}
2857	while (my $sig = shift @WAIT_FOR_TICK) {
2858	$sig->send;
2859	}
2860		3418
2861	_post_tick;	3419	_post_tick;
		3420
		3421
2862	},	3422	},
2863	);	3423	);
2864		3424
2865	{	3425	{
2866	BDB::max_poll_time $TICK * 0.1;	3426	BDB::max_poll_time $TICK * 0.1;
…		…
2925	prio => 6,	3485	prio => 6,
2926	cb => \&IO::AIO::poll_cb,	3486	cb => \&IO::AIO::poll_cb,
2927	);	3487	);
2928	}	3488	}
2929		3489
		3490	my $_log_backtrace;
		3491
		3492	sub _log_backtrace {
		3493	my ($msg, @addr) = @_;
		3494
		3495	$msg =~ s/\n//;
		3496
		3497	# limit the # of concurrent backtraces
		3498	if ($_log_backtrace < 2) {
		3499	++$_log_backtrace;
		3500	async {
		3501	my @bt = fork_call {
		3502	@addr = map { sprintf "%x", $_ } @addr;
		3503	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3504	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3505	or die "addr2line: $!";
		3506
		3507	my @funcs;
		3508	my @res = <$fh>;
		3509	chomp for @res;
		3510	while (@res) {
		3511	my ($func, $line) = splice @res, 0, 2, ();
		3512	push @funcs, "[$func] $line";
		3513	}
		3514
		3515	@funcs
		3516	};
		3517
		3518	LOG llevInfo, "[ABT] $msg\n";
		3519	LOG llevInfo, "[ABT] $_\n" for @bt;
		3520	--$_log_backtrace;
		3521	};
		3522	} else {
		3523	LOG llevInfo, "[ABT] $msg\n";
		3524	LOG llevInfo, "[ABT] [suppressed]\n";
		3525	}
		3526	}
		3527
2930	# load additional modules	3528	# load additional modules
2931	use cf::pod;	3529	use cf::pod;
2932		3530
2933	END { cf::emergency_save }	3531	END { cf::emergency_save }
2934		3532

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