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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.257 by root, Sat Apr 21 17:34:24 2007 UTC vs.
Revision 1.349 by root, Fri Aug 31 04:10:43 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/(?<![BIUGH])</&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	# replace G<male|female> tags
		1478	|| s{G<([^>|]*)\|([^>]*)>}{
		1479	$self->gender ? $2 : $1
		1480	}ge
		1481	# replace H<hint text>
		1482	|| s{H<([^\>]*)>}
		1483	{
		1484	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1485	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1486	"")
		1487	[$self->{hintmode}]
		1488	}ge;
		1489
		1490	# create single paragraphs (very hackish)
		1491	s/(?<=\S)\n(?=\w)/ /g;
		1492
		1493	# compress some whitespace
		1494	s/\s+\n/\n/g; # ws line-ends
		1495	s/\n\n+/\n/g; # double lines
		1496	s/^\n+//; # beginning lines
		1497	s/\n+$//; # ending lines
		1498
		1499	$_
		1500	}
		1501
		1502	sub hintmode {
		1503	$_[0]{hintmode} = $_[1] if @_ > 1;
		1504	$_[0]{hintmode}
		1505	}
		1506
1154	=item $player->ext_reply ($msgid, %msg)	1507	=item $player->ext_reply ($msgid, @msg)
1155		1508
1156	Sends an ext reply to the player.	1509	Sends an ext reply to the player.
1157		1510
1158	=cut	1511	=cut
1159		1512
1160	sub ext_reply($$%) {	1513	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1514	my ($self, $id, @msg) = @_;
1162		1515
1163	$msg{msgid} = $id;	1516	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1517	}
1167		1518
1168	=item $player->ext_event ($type, %msg)	1519	=item $player->ext_msg ($type, @msg)
1169		1520
1170	Sends an ext event to the client.	1521	Sends an ext event to the client.
1171		1522
1172	=cut	1523	=cut
1173		1524
1174	sub ext_event($$%) {	1525	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1526	my ($self, $type, @msg) = @_;
1176		1527
1177	$self->ns->ext_event ($type, %msg);	1528	$self->ns->ext_msg ($type, @msg);
1178	}	1529	}
1179		1530
1180	=head3 cf::region	1531	=head3 cf::region
1181		1532
1182	=over 4	1533	=over 4
…		…
1185		1536
1186	package cf::region;	1537	package cf::region;
1187		1538
1188	=item cf::region::find_by_path $path	1539	=item cf::region::find_by_path $path
1189		1540
1190	Tries to decuce the probable region for a map knowing only its path.	1541	Tries to decuce the likely region for a map knowing only its path.
1191		1542
1192	=cut	1543	=cut
1193		1544
1194	sub find_by_path($) {	1545	sub find_by_path($) {
1195	my ($path) = @_;	1546	my ($path) = @_;
1196		1547
1197	my ($match, $specificity);	1548	my ($match, $specificity);
1198		1549
1199	for my $region (list) {	1550	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1551	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1552	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1553	if $region->specificity > $specificity;
1203	}	1554	}
1204	}	1555	}
1205		1556
…		…
1269	my ($self, $merge) = @_;	1620	my ($self, $merge) = @_;
1270		1621
1271	# we have to keep some variables in memory intact	1622	# we have to keep some variables in memory intact
1272	local $self->{path};	1623	local $self->{path};
1273	local $self->{load_path};	1624	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1625
1277	$self->SUPER::thawer_merge ($merge);	1626	$self->SUPER::thawer_merge ($merge);
1278	}	1627	}
1279		1628
1280	sub normalise {	1629	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1676	$self->init; # pass $1 etc.
1328	return $self;	1677	return $self;
1329	}	1678	}
1330	}	1679	}
1331		1680
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1681	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1682	()
1334	}	1683	}
1335		1684
1336	sub init {	1685	sub init {
1337	my ($self) = @_;	1686	my ($self) = @_;
…		…
1378	sub change_all_map_light {	1727	sub change_all_map_light {
1379	my ($change) = @_;	1728	my ($change) = @_;
1380		1729
1381	$_->change_map_light ($change)	1730	$_->change_map_light ($change)
1382	for grep $_->outdoor, values %cf::MAP;	1731	for grep $_->outdoor, values %cf::MAP;
		1732	}
		1733
		1734	sub decay_objects {
		1735	my ($self) = @_;
		1736
		1737	return if $self->{deny_reset};
		1738
		1739	$self->do_decay_objects;
1383	}	1740	}
1384		1741
1385	sub unlink_save {	1742	sub unlink_save {
1386	my ($self) = @_;	1743	my ($self) = @_;
1387		1744
…		…
1445	$self->load_header_orig	1802	$self->load_header_orig
1446	or return;	1803	or return;
1447	$self->prepare_orig;	1804	$self->prepare_orig;
1448	}	1805	}
1449		1806
		1807	$self->{deny_reset} = 1
		1808	if $self->no_reset;
		1809
1450	$self->default_region (cf::region::find_by_path $self->{path})	1810	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1811	unless $self->default_region;
1452		1812
1453	1	1813	1
1454	}	1814	}
…		…
1469	$map->{last_save} = $cf::RUNTIME;	1829	$map->{last_save} = $cf::RUNTIME;
1470		1830
1471	$map->load_header	1831	$map->load_header
1472	or return;	1832	or return;
1473		1833
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1834	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1835	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1836	#$cf::WAIT_FOR_TICK->wait;
1477	$map->reset;	1837	$map->reset;
1478	undef $guard;	1838	undef $guard;
1479	return find $path;	1839	return find $path;
…		…
1492	local $self->{deny_reset} = 1; # loading can take a long time	1852	local $self->{deny_reset} = 1; # loading can take a long time
1493		1853
1494	my $path = $self->{path};	1854	my $path = $self->{path};
1495		1855
1496	{	1856	{
		1857	my $guard1 = cf::lock_acquire "map_data:$path";
1497	my $guard = cf::lock_acquire "map_load:$path";	1858	my $guard2 = cf::lock_acquire "map_load:$path";
1498		1859
1499	return if $self->in_memory != cf::MAP_SWAPPED;	1860	return if $self->in_memory != cf::MAP_SWAPPED;
1500		1861
1501	$self->in_memory (cf::MAP_LOADING);	1862	$self->in_memory (cf::MAP_LOADING);
1502		1863
1503	$self->alloc;	1864	$self->alloc;
1504		1865
1505	$self->pre_load;	1866	$self->pre_load;
1506	Coro::cede;	1867	cf::cede_to_tick;
1507		1868
1508	$self->_load_objects ($self->{load_path}, 1)	1869	$self->_load_objects ($self->{load_path}, 1)
1509	or return;	1870	or return;
1510		1871
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1872	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
…		…
1517	$self->clear_unique_items;	1878	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	1879	$self->_load_objects ($uniq, 0);
1519	}	1880	}
1520	}	1881	}
1521		1882
1522	Coro::cede;	1883	cf::cede_to_tick;
1523	# now do the right thing for maps	1884	# now do the right thing for maps
1524	$self->link_multipart_objects;	1885	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	1886	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	1887	unless $self->difficulty;
1527	Coro::cede;	1888	cf::cede_to_tick;
1528		1889
1529	unless ($self->{deny_activate}) {	1890	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	1891	$self->decay_objects;
1531	$self->fix_auto_apply;	1892	$self->fix_auto_apply;
1532	$self->update_buttons;	1893	$self->update_buttons;
1533	Coro::cede;	1894	cf::cede_to_tick;
1534	$self->set_darkness_map;	1895	$self->set_darkness_map;
1535	Coro::cede;	1896	cf::cede_to_tick;
1536	$self->activate;	1897	$self->activate;
1537	}	1898	}
		1899
		1900	$self->{last_save} = $cf::RUNTIME;
		1901	$self->last_access ($cf::RUNTIME);
1538		1902
1539	$self->in_memory (cf::MAP_IN_MEMORY);	1903	$self->in_memory (cf::MAP_IN_MEMORY);
1540	}	1904	}
1541		1905
1542	$self->post_load;	1906	$self->post_load;
…		…
1546	my ($self, $ob) = @_;	1910	my ($self, $ob) = @_;
1547		1911
1548	return find "~" . $ob->name . "/" . $self->{path}	1912	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	1913	if $self->per_player;
1550		1914
		1915	# return find "?party/" . $ob->name . "/" . $self->{path}
		1916	# if $self->per_party;
		1917
1551	$self	1918	$self
1552	}	1919	}
1553		1920
1554	# find and load all maps in the 3x3 area around a map	1921	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	1922	sub load_neighbours {
1556	my ($map) = @_;	1923	my ($map) = @_;
1557		1924
1558	my @diag; # diagonal neighbours	1925	my @neigh; # diagonal neighbours
1559		1926
1560	for (0 .. 3) {	1927	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	1928	my $neigh = $map->tile_path ($_)
1562	or next;	1929	or next;
1563	$neigh = find $neigh, $map	1930	$neigh = find $neigh, $map
1564	or next;	1931	or next;
1565	$neigh->load;	1932	$neigh->load;
1566		1933
		1934	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1935	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1936	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	1937	}
1570		1938
1571	for (@diag) {	1939	for (grep defined $_->[0], @neigh) {
		1940	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	1941	my $neigh = find $path, $origin
1573	or next;	1942	or next;
1574	$neigh->load;	1943	$neigh->load;
1575	}	1944	}
1576	}	1945	}
1577		1946
…		…
1582	}	1951	}
1583		1952
1584	sub do_load_sync {	1953	sub do_load_sync {
1585	my ($map) = @_;	1954	my ($map) = @_;
1586		1955
		1956	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		1957	if $Coro::current == $Coro::main;
		1958
1587	cf::sync_job { $map->load };	1959	cf::sync_job { $map->load };
1588	}	1960	}
1589		1961
1590	our %MAP_PREFETCH;	1962	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	1963	our $MAP_PREFETCHER = undef;
1592		1964
1593	sub find_async {	1965	sub find_async {
1594	my ($path, $origin) = @_;	1966	my ($path, $origin, $load) = @_;
1595		1967
1596	$path = normalise $path, $origin && $origin->{path};	1968	$path = normalise $path, $origin && $origin->{path};
1597		1969
1598	if (my $map = $cf::MAP{$path}) {	1970	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1971	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1600	}	1972	}
1601		1973
1602	undef $MAP_PREFETCH{$path};	1974	$MAP_PREFETCH{$path} |= $load;
		1975
1603	$MAP_PREFETCHER ||= cf::async {	1976	$MAP_PREFETCHER ||= cf::async {
1604	while (%MAP_PREFETCH) {	1977	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	1978	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	1979	if (my $map = find $k) {
1607	or next;
1608	$map->load;	1980	$map->load if $v;
		1981	}
1609		1982
1610	delete $MAP_PREFETCH{$path};	1983	delete $MAP_PREFETCH{$k};
1611	}	1984	}
1612	}	1985	}
1613	undef $MAP_PREFETCHER;	1986	undef $MAP_PREFETCHER;
1614	};	1987	};
1615	$MAP_PREFETCHER->prio (6);	1988	$MAP_PREFETCHER->prio (6);
…		…
1618	}	1991	}
1619		1992
1620	sub save {	1993	sub save {
1621	my ($self) = @_;	1994	my ($self) = @_;
1622		1995
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;	1996	my $lock = cf::lock_acquire "map_data:$self->{path}";
1624		1997
1625	$self->{last_save} = $cf::RUNTIME;	1998	$self->{last_save} = $cf::RUNTIME;
1626		1999
1627	return unless $self->dirty;	2000	return unless $self->dirty;
1628		2001
…		…
1651	my ($self) = @_;	2024	my ($self) = @_;
1652		2025
1653	# save first because save cedes	2026	# save first because save cedes
1654	$self->save;	2027	$self->save;
1655		2028
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2029	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2030
1658	return if $self->players;	2031	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;	2032	return if $self->in_memory != cf::MAP_IN_MEMORY;
1660	return if $self->{deny_save};	2033	return if $self->{deny_save};
1661		2034
…		…
1665		2038
1666	sub reset_at {	2039	sub reset_at {
1667	my ($self) = @_;	2040	my ($self) = @_;
1668		2041
1669	# TODO: safety, remove and allow resettable per-player maps	2042	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2043	return 1e99 if $self->{deny_reset};
1672		2044
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2045	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2046	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2047
…		…
1686	my ($self) = @_;	2058	my ($self) = @_;
1687		2059
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2061
1690	return if $self->players;	2062	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2063
1693	warn "resetting map ", $self->path;#d#	2064	warn "resetting map ", $self->path;
1694		2065
1695	$self->in_memory (cf::MAP_SWAPPED);	2066	$self->in_memory (cf::MAP_SWAPPED);
1696		2067
1697	# need to save uniques path	2068	# need to save uniques path
1698	unless ($self->{deny_save}) {	2069	unless ($self->{deny_save}) {
…		…
1715	my $nuke_counter = "aaaa";	2086	my $nuke_counter = "aaaa";
1716		2087
1717	sub nuke {	2088	sub nuke {
1718	my ($self) = @_;	2089	my ($self) = @_;
1719		2090
		2091	{
		2092	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2093
1720	delete $cf::MAP{$self->path};	2094	delete $cf::MAP{$self->path};
1721		2095
1722	$self->unlink_save;
1723
1724	bless $self, "cf::map";	2096	bless $self, "cf::map";
1725	delete $self->{deny_reset};	2097	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2098	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2099	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2100	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2101
		2102	$self->unlink_save;
		2103
1730	$cf::MAP{$self->path} = $self;	2104	$cf::MAP{$self->path} = $self;
		2105	}
1731		2106
1732	$self->reset; # polite request, might not happen	2107	$self->reset; # polite request, might not happen
		2108	}
		2109
		2110	=item $maps = cf::map::tmp_maps
		2111
		2112	Returns an arrayref with all map paths of currently instantiated and saved
		2113	maps. May block.
		2114
		2115	=cut
		2116
		2117	sub tmp_maps() {
		2118	[
		2119	map {
		2120	utf8::decode $_;
		2121	/\.map$/
		2122	? normalise $_
		2123	: ()
		2124	} @{ aio_readdir $TMPDIR or [] }
		2125	]
		2126	}
		2127
		2128	=item $maps = cf::map::random_maps
		2129
		2130	Returns an arrayref with all map paths of currently instantiated and saved
		2131	random maps. May block.
		2132
		2133	=cut
		2134
		2135	sub random_maps() {
		2136	[
		2137	map {
		2138	utf8::decode $_;
		2139	/\.map$/
		2140	? normalise "?random/$_"
		2141	: ()
		2142	} @{ aio_readdir $RANDOMDIR or [] }
		2143	]
1733	}	2144	}
1734		2145
1735	=item cf::map::unique_maps	2146	=item cf::map::unique_maps
1736		2147
1737	Returns an arrayref of paths of all shared maps that have	2148	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2149	instantiated unique items. May block.
1739		2150
1740	=cut	2151	=cut
1741		2152
1742	sub unique_maps() {	2153	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2154	[
1744	or return;	2155	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2156	utf8::decode $_;
1750	next if /\.pst$/;	2157	/\.map$/
1751	next unless /^$PATH_SEP/o;	2158	? normalise $_
1752		2159	: ()
1753	push @paths, cf::map::normalise $_;	2160	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2161	]
1755
1756	\@paths
1757	}	2162	}
1758		2163
1759	package cf;	2164	package cf;
1760		2165
1761	=back	2166	=back
…		…
1807		2212
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2213	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2214
1810	if ($self->{record_replies}) {	2215	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2216	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2217
1812	} else {	2218	} else {
		2219	my $pl = $self->contr;
		2220
		2221	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2222	my $dialog = $pl->{npc_dialog};
		2223	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2224
		2225	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2226	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2227	$self->message ($msg, $flags);
		2228	}
1815	}	2229	}
		2230	}
		2231
		2232	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2233
		2234	=cut
		2235
		2236	sub cf::object::send_msg {
		2237	my $pl = shift->contr
		2238	or return;
		2239	$pl->send_msg (@_);
1816	}	2240	}
1817		2241
1818	=item $player_object->may ("access")	2242	=item $player_object->may ("access")
1819		2243
1820	Returns wether the given player is authorized to access resource "access"	2244	Returns wether the given player is authorized to access resource "access"
…		…
1862	}	2286	}
1863		2287
1864	sub cf::object::player::enter_link {	2288	sub cf::object::player::enter_link {
1865	my ($self) = @_;	2289	my ($self) = @_;
1866		2290
		2291	$self->deactivate_recursive;
		2292
1867	return if UNIVERSAL::isa $self->map, "ext::map_link";	2293	return if UNIVERSAL::isa $self->map, "ext::map_link";
1868		2294
1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2295	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1870	if $self->map;	2296	if $self->map && $self->map->{path} ne "{link}";
1871		2297
1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2298	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1873	}	2299	}
1874		2300
1875	sub cf::object::player::leave_link {	2301	sub cf::object::player::leave_link {
1876	my ($self, $map, $x, $y) = @_;	2302	my ($self, $map, $x, $y) = @_;
		2303
		2304	return unless $self->contr->active;
1877		2305
1878	my $link_pos = delete $self->{_link_pos};	2306	my $link_pos = delete $self->{_link_pos};
1879		2307
1880	unless ($map) {	2308	unless ($map) {
1881	# restore original map position	2309	# restore original map position
…		…
1895	# use -1 or undef as default coordinates, not 0, 0	2323	# use -1 or undef as default coordinates, not 0, 0
1896	($x, $y) = ($map->enter_x, $map->enter_y)	2324	($x, $y) = ($map->enter_x, $map->enter_y)
1897	if $x <=0 && $y <= 0;	2325	if $x <=0 && $y <= 0;
1898		2326
1899	$map->load;	2327	$map->load;
1900	$map->load_diag;	2328	$map->load_neighbours;
1901		2329
1902	return unless $self->contr->active;	2330	return unless $self->contr->active;
1903	$self->activate_recursive;	2331	$self->activate_recursive;
1904		2332
1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2333	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1906	$self->enter_map ($map, $x, $y);	2334	$self->enter_map ($map, $x, $y);
1907	}	2335	}
1908		2336
1909	cf::player->attach (	2337	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1910	on_logout => sub {
1911	my ($pl) = @_;
1912		2338
1913	# abort map switching before logout	2339	Moves the player to the given map-path and coordinates by first freezing
1914	if ($pl->ob->{_link_pos}) {	2340	her, loading and preparing them map, calling the provided $check callback
1915	cf::sync_job {	2341	that has to return the map if sucecssful, and then unfreezes the player on
1916	$pl->ob->leave_link	2342	the new (success) or old (failed) map position. In either case, $done will
1917	};	2343	be called at the end of this process.
1918	}
1919	},
1920	on_login => sub {
1921	my ($pl) = @_;
1922		2344
1923	# try to abort aborted map switching on player login :)
1924	# should happen only on crashes
1925	if ($pl->ob->{_link_pos}) {
1926	$pl->ob->enter_link;
1927	(async {
1928	$pl->ob->reply (undef,
1929	"There was an internal problem at your last logout, "
1930	. "the server will try to bring you to your intended destination in a second.",
1931	cf::NDI_RED);
1932	# we need this sleep as the login has a concurrent enter_exit running
1933	# and this sleep increases chances of the player not ending up in scorn
1934	Coro::Timer::sleep 1;
1935	$pl->ob->leave_link;
1936	})->prio (2);
1937	}
1938	},
1939	);
1940
1941	=item $player_object->goto ($path, $x, $y)
1942
1943	=cut	2345	=cut
		2346
		2347	our $GOTOGEN;
1944		2348
1945	sub cf::object::player::goto {	2349	sub cf::object::player::goto {
1946	my ($self, $path, $x, $y) = @_;	2350	my ($self, $path, $x, $y, $check, $done) = @_;
		2351
		2352	# do generation counting so two concurrent goto's will be executed in-order
		2353	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1947		2354
1948	$self->enter_link;	2355	$self->enter_link;
1949		2356
1950	(async {	2357	(async {
1951	my $map = eval {	2358	my $map = eval {
1952	my $map = cf::map::find $path;	2359	my $map = cf::map::find $path;
		2360
		2361	if ($map) {
1953	$map = $map->customise_for ($self) if $map;	2362	$map = $map->customise_for ($self);
		2363	$map = $check->($map) if $check && $map;
		2364	} else {
		2365	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2366	}
		2367
1954	$map	2368	$map
		2369	};
		2370
		2371	if ($@) {
		2372	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2373	LOG llevError | logBacktrace, Carp::longmess $@;
1955	} or	2374	}
1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1957		2375
		2376	if ($gen == $self->{_goto_generation}) {
		2377	delete $self->{_goto_generation};
1958	$self->leave_link ($map, $x, $y);	2378	$self->leave_link ($map, $x, $y);
		2379	}
		2380
		2381	$done->() if $done;
1959	})->prio (1);	2382	})->prio (1);
1960	}	2383	}
1961		2384
1962	=item $player_object->enter_exit ($exit_object)	2385	=item $player_object->enter_exit ($exit_object)
1963		2386
…		…
2032	my $hp = $exit->stats->hp;	2455	my $hp = $exit->stats->hp;
2033	my $sp = $exit->stats->sp;	2456	my $sp = $exit->stats->sp;
2034		2457
2035	$self->enter_link;	2458	$self->enter_link;
2036		2459
		2460	# if exit is damned, update players death & WoR home-position
		2461	$self->contr->savebed ($slaying, $hp, $sp)
		2462	if $exit->flag (FLAG_DAMNED);
		2463
2037	(async {	2464	(async {
2038	$self->deactivate_recursive; # just to be sure	2465	$self->deactivate_recursive; # just to be sure
2039	unless (eval {	2466	unless (eval {
2040	$self->goto ($slaying, $hp, $sp);	2467	$self->goto ($slaying, $hp, $sp);
2041		2468
…		…
2068		2495
2069	utf8::encode $text;	2496	utf8::encode $text;
2070	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2497	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2071	}	2498	}
2072		2499
		2500	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2501
		2502	Send a drawinfo or msg packet to the client, formatting the msg for the
		2503	client if neccessary. C<$type> should be a string identifying the type of
		2504	the message, with C<log> being the default. If C<$color> is negative, suppress
		2505	the message unless the client supports the msg packet.
		2506
		2507	=cut
		2508
		2509	sub cf::client::send_msg {
		2510	my ($self, $channel, $msg, $color, @extra) = @_;
		2511
		2512	$msg = $self->pl->expand_cfpod ($msg);
		2513
		2514	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2515
		2516	if (ref $channel) {
		2517	# send meta info to client, if not yet sent
		2518	unless (exists $self->{channel}{$channel->{id}}) {
		2519	$self->{channel}{$channel->{id}} = $channel;
		2520	$self->ext_msg (channel_info => $channel);
		2521	}
		2522
		2523	$channel = $channel->{id};
		2524	}
		2525
		2526	return unless @extra || length $msg;
		2527
		2528	if ($self->can_msg) {
		2529	# default colour, mask it out
		2530	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2531	if $color & cf::NDI_DEF;
		2532
		2533	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2534	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2535	} else {
		2536	if ($color >= 0) {
		2537	# replace some tags by gcfclient-compatible ones
		2538	for ($msg) {
		2539	1 while
		2540	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2541	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2542	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2543	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2544	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2545	}
		2546
		2547	$color &= cf::NDI_COLOR_MASK;
		2548
		2549	utf8::encode $msg;
		2550
		2551	if (0 && $msg =~ /\[/) {
		2552	# COMMAND/INFO
		2553	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2554	} else {
		2555	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2556	$self->send_packet ("drawinfo $color $msg")
		2557	}
		2558	}
		2559	}
		2560	}
		2561
2073	=item $client->ext_event ($type, %msg)	2562	=item $client->ext_msg ($type, @msg)
2074		2563
2075	Sends an exti event to the client.	2564	Sends an ext event to the client.
2076		2565
2077	=cut	2566	=cut
2078		2567
2079	sub cf::client::ext_event($$%) {	2568	sub cf::client::ext_msg($$@) {
2080	my ($self, $type, %msg) = @_;	2569	my ($self, $type, @msg) = @_;
2081		2570
		2571	if ($self->extcmd == 2) {
		2572	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2573	} elsif ($self->extcmd == 1) { # TODO: remove
2082	$msg{msgtype} = "event_$type";	2574	push @msg, msgtype => "event_$type";
2083	$self->send_packet ("ext " . cf::to_json \%msg);	2575	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2576	}
		2577	}
		2578
		2579	=item $client->ext_reply ($msgid, @msg)
		2580
		2581	Sends an ext reply to the client.
		2582
		2583	=cut
		2584
		2585	sub cf::client::ext_reply($$@) {
		2586	my ($self, $id, @msg) = @_;
		2587
		2588	if ($self->extcmd == 2) {
		2589	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2590	} elsif ($self->extcmd == 1) {
		2591	#TODO: version 1, remove
		2592	unshift @msg, msgtype => "reply", msgid => $id;
		2593	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2594	}
2084	}	2595	}
2085		2596
2086	=item $success = $client->query ($flags, "text", \&cb)	2597	=item $success = $client->query ($flags, "text", \&cb)
2087		2598
2088	Queues a query to the client, calling the given callback with	2599	Queues a query to the client, calling the given callback with
2089	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2600	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2090	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2601	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2091		2602
2092	Queries can fail, so check the return code. Or don't, as queries will become	2603	Queries can fail, so check the return code. Or don't, as queries will
2093	reliable at some point in the future.	2604	become reliable at some point in the future.
2094		2605
2095	=cut	2606	=cut
2096		2607
2097	sub cf::client::query {	2608	sub cf::client::query {
2098	my ($self, $flags, $text, $cb) = @_;	2609	my ($self, $flags, $text, $cb) = @_;
…		…
2106	utf8::encode $text;	2617	utf8::encode $text;
2107	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2618	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2108		2619
2109	$self->send_packet ($self->{query_queue}[0][0])	2620	$self->send_packet ($self->{query_queue}[0][0])
2110	if @{ $self->{query_queue} } == 1;	2621	if @{ $self->{query_queue} } == 1;
		2622
		2623	1
2111	}	2624	}
2112		2625
2113	cf::client->attach (	2626	cf::client->attach (
		2627	on_connect => sub {
		2628	my ($ns) = @_;
		2629
		2630	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2631	},
2114	on_reply => sub {	2632	on_reply => sub {
2115	my ($ns, $msg) = @_;	2633	my ($ns, $msg) = @_;
2116		2634
2117	# this weird shuffling is so that direct followup queries	2635	# this weird shuffling is so that direct followup queries
2118	# get handled first	2636	# get handled first
…		…
2130	} else {	2648	} else {
2131	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2649	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2132	}	2650	}
2133	}	2651	}
2134	},	2652	},
		2653	on_exticmd => sub {
		2654	my ($ns, $buf) = @_;
		2655
		2656	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2657
		2658	if (ref $msg) {
		2659	my ($type, $reply, @payload) =
		2660	"ARRAY" eq ref $msg
		2661	? @$msg
		2662	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2663
		2664	my @reply;
		2665
		2666	if (my $cb = $EXTICMD{$type}) {
		2667	@reply = $cb->($ns, @payload);
		2668	}
		2669
		2670	$ns->ext_reply ($reply, @reply)
		2671	if $reply;
		2672
		2673	} else {
		2674	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2675	}
		2676
		2677	cf::override;
		2678	},
2135	);	2679	);
2136		2680
2137	=item $client->async (\&cb)	2681	=item $client->async (\&cb)
2138		2682
2139	Create a new coroutine, running the specified callback. The coroutine will	2683	Create a new coroutine, running the specified callback. The coroutine will
…		…
2180	our $safe = new Safe "safe";	2724	our $safe = new Safe "safe";
2181	our $safe_hole = new Safe::Hole;	2725	our $safe_hole = new Safe::Hole;
2182		2726
2183	$SIG{FPE} = 'IGNORE';	2727	$SIG{FPE} = 'IGNORE';
2184		2728
2185	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2729	$safe->permit_only (Opcode::opset qw(
		2730	:base_core :base_mem :base_orig :base_math
		2731	grepstart grepwhile mapstart mapwhile
		2732	sort time
		2733	));
2186		2734
2187	# here we export the classes and methods available to script code	2735	# here we export the classes and methods available to script code
2188		2736
2189	=pod	2737	=pod
2190		2738
2191	The following functions and methods are available within a safe environment:	2739	The following functions and methods are available within a safe environment:
2192		2740
2193	cf::object contr pay_amount pay_player map	2741	cf::object
		2742	contr pay_amount pay_player map x y force_find force_add
		2743	insert remove name archname title slaying race decrease_ob_nr
		2744
2194	cf::object::player player	2745	cf::object::player
2195	cf::player peaceful	2746	player
2196	cf::map trigger	2747
		2748	cf::player
		2749	peaceful
		2750
		2751	cf::map
		2752	trigger
2197		2753
2198	=cut	2754	=cut
2199		2755
2200	for (	2756	for (
2201	["cf::object" => qw(contr pay_amount pay_player map)],	2757	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2758	insert remove inv name archname title slaying race
		2759	decrease_ob_nr)],
2202	["cf::object::player" => qw(player)],	2760	["cf::object::player" => qw(player)],
2203	["cf::player" => qw(peaceful)],	2761	["cf::player" => qw(peaceful)],
2204	["cf::map" => qw(trigger)],	2762	["cf::map" => qw(trigger)],
2205	) {	2763	) {
2206	no strict 'refs';	2764	no strict 'refs';
…		…
2277	=back	2835	=back
2278		2836
2279	=cut	2837	=cut
2280		2838
2281	#############################################################################	2839	#############################################################################
2282
2283	=head2 EXTENSION DATABASE SUPPORT
2284
2285	Crossfire maintains a very simple database for extension use. It can
2286	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2287	convert to/from binary).
2288
2289	The parameter C<$family> should best start with the name of the extension
2290	using it, it should be unique.
2291
2292	=over 4
2293
2294	=item $value = cf::db_get $family => $key
2295
2296	Returns a single value from the database.
2297
2298	=item cf::db_put $family => $key => $value
2299
2300	Stores the given C<$value> in the family.
2301
2302	=cut
2303
2304	our $DB;
2305
2306	sub db_init {
2307	unless ($DB) {
2308	$DB = BDB::db_create $DB_ENV;
2309
2310	cf::sync_job {
2311	eval {
2312	$DB->set_flags (BDB::CHKSUM);
2313
2314	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2315	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2316	cf::cleanup "db_open(db): $!" if $!;
2317	};
2318	cf::cleanup "db_open(db): $@" if $@;
2319	};
2320	}
2321	}
2322
2323	sub db_get($$) {
2324	my $key = "$_[0]/$_[1]";
2325
2326	cf::sync_job {
2327	BDB::db_get $DB, undef, $key, my $data;
2328
2329	$! ? ()
2330	: $data
2331	}
2332	}
2333
2334	sub db_put($$$) {
2335	BDB::dbreq_pri 4;
2336	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2337	}
2338
2339	=item cf::cache $id => [$paths...], $processversion => $process
2340
2341	Generic caching function that returns the value of the resource $id,
2342	caching and regenerating as required.
2343
2344	This function can block.
2345
2346	=cut
2347
2348	sub cache {
2349	my ($id, $src, $processversion, $process) = @_;
2350
2351	my $meta =
2352	join "\x00",
2353	$processversion,
2354	map {
2355	aio_stat $_
2356	and Carp::croak "$_: $!";
2357
2358	($_, (stat _)[7,9])
2359	} @$src;
2360
2361	my $dbmeta = db_get cache => "$id/meta";
2362	if ($dbmeta ne $meta) {
2363	# changed, we may need to process
2364
2365	my @data;
2366	my $md5;
2367
2368	for (0 .. $#$src) {
2369	0 <= aio_load $src->[$_], $data[$_]
2370	or Carp::croak "$src->[$_]: $!";
2371	}
2372
2373	# if processing is expensive, check
2374	# checksum first
2375	if (1) {
2376	$md5 =
2377	join "\x00",
2378	$processversion,
2379	map {
2380	Coro::cede;
2381	($src->[$_], Digest::MD5::md5_hex $data[$_])
2382	} 0.. $#$src;
2383
2384
2385	my $dbmd5 = db_get cache => "$id/md5";
2386	if ($dbmd5 eq $md5) {
2387	db_put cache => "$id/meta", $meta;
2388
2389	return db_get cache => "$id/data";
2390	}
2391	}
2392
2393	my $t1 = Time::HiRes::time;
2394	my $data = $process->(\@data);
2395	my $t2 = Time::HiRes::time;
2396
2397	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2398
2399	db_put cache => "$id/data", $data;
2400	db_put cache => "$id/md5" , $md5;
2401	db_put cache => "$id/meta", $meta;
2402
2403	return $data;
2404	}
2405
2406	db_get cache => "$id/data"
2407	}
2408
2409	=item fork_call { }, $args
2410
2411	Executes the given code block with the given arguments in a seperate
2412	process, returning the results. Everything must be serialisable with
2413	Coro::Storable. May, of course, block. Note that the executed sub may
2414	never block itself or use any form of Event handling.
2415
2416	=cut
2417
2418	sub fork_call(&@) {
2419	my ($cb, @args) = @_;
2420
2421	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2422	# or die "socketpair: $!";
2423	pipe my $fh1, my $fh2
2424	or die "pipe: $!";
2425
2426	if (my $pid = fork) {
2427	close $fh2;
2428
2429	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2430	$res = Coro::Storable::thaw $res;
2431
2432	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2433
2434	die $$res unless "ARRAY" eq ref $res;
2435
2436	return wantarray ? @$res : $res->[-1];
2437	} else {
2438	local $SIG{__WARN__};
2439	eval {
2440	local $SIG{__DIE__};
2441	close $fh1;
2442
2443	my @res = eval { $cb->(@args) };
2444	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2445	};
2446
2447	warn $@ if $@;
2448	_exit 0;
2449	}
2450	}
2451
2452
2453
2454	#############################################################################
2455	# the server's init and main functions	2840	# the server's init and main functions
2456		2841
2457	sub load_facedata($) {	2842	sub load_facedata($) {
2458	my ($path) = @_;	2843	my ($path) = @_;
		2844
		2845	# HACK to clear player env face cache, we need some signal framework
		2846	# for this (global event?)
		2847	%ext::player_env::MUSIC_FACE_CACHE = ();
		2848
		2849	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2459		2850
2460	warn "loading facedata from $path\n";	2851	warn "loading facedata from $path\n";
2461		2852
2462	my $facedata;	2853	my $facedata;
2463	0 < aio_load $path, $facedata	2854	0 < aio_load $path, $facedata
…		…
2466	$facedata = Coro::Storable::thaw $facedata;	2857	$facedata = Coro::Storable::thaw $facedata;
2467		2858
2468	$facedata->{version} == 2	2859	$facedata->{version} == 2
2469	or cf::cleanup "$path: version mismatch, cannot proceed.";	2860	or cf::cleanup "$path: version mismatch, cannot proceed.";
2470		2861
		2862	# patch in the exptable
		2863	$facedata->{resource}{"res/exp_table"} = {
		2864	type => FT_RSRC,
		2865	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		2866	};
		2867	cf::cede_to_tick;
		2868
2471	{	2869	{
2472	my $faces = $facedata->{faceinfo};	2870	my $faces = $facedata->{faceinfo};
2473		2871
2474	while (my ($face, $info) = each %$faces) {	2872	while (my ($face, $info) = each %$faces) {
2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2873	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2874	cf::face::set_visibility $idx, $info->{visibility};
		2875	cf::face::set_magicmap $idx, $info->{magicmap};
2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2876	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2877	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2479	Coro::cede;	2878
		2879	cf::cede_to_tick;
2480	}	2880	}
2481		2881
2482	while (my ($face, $info) = each %$faces) {	2882	while (my ($face, $info) = each %$faces) {
2483	next unless $info->{smooth};	2883	next unless $info->{smooth};
2484	my $idx = cf::face::find $face	2884	my $idx = cf::face::find $face
2485	or next;	2885	or next;
2486	if (my $smooth = cf::face::find $info->{smooth}) {	2886	if (my $smooth = cf::face::find $info->{smooth}) {
		2887	cf::face::set_smooth $idx, $smooth;
2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2888	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2488	} else {	2889	} else {
2489	warn "smooth face '$info->{smooth}' not found for face '$face'";	2890	warn "smooth face '$info->{smooth}' not found for face '$face'";
2490	}	2891	}
2491	Coro::cede;	2892
		2893	cf::cede_to_tick;
2492	}	2894	}
2493	}	2895	}
2494		2896
2495	{	2897	{
2496	my $anims = $facedata->{animinfo};	2898	my $anims = $facedata->{animinfo};
2497		2899
2498	while (my ($anim, $info) = each %$anims) {	2900	while (my ($anim, $info) = each %$anims) {
2499	cf::anim::set $anim, $info->{frames}, $info->{facings};	2901	cf::anim::set $anim, $info->{frames}, $info->{facings};
2500	Coro::cede;	2902	cf::cede_to_tick;
2501	}	2903	}
2502		2904
2503	cf::anim::invalidate_all; # d'oh	2905	cf::anim::invalidate_all; # d'oh
2504	}	2906	}
2505		2907
		2908	{
		2909	# TODO: for gcfclient pleasure, we should give resources
		2910	# that gcfclient doesn't grok a >10000 face index.
		2911	my $res = $facedata->{resource};
		2912
		2913	my $soundconf = delete $res->{"res/sound.conf"};
		2914
		2915	while (my ($name, $info) = each %$res) {
		2916	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2917	my $data;
		2918
		2919	if ($info->{type} & 1) {
		2920	# prepend meta info
		2921
		2922	my $meta = $enc->encode ({
		2923	name => $name,
		2924	%{ $info->{meta} || {} },
		2925	});
		2926
		2927	$data = pack "(w/a*)*", $meta, $info->{data};
		2928	} else {
		2929	$data = $info->{data};
		2930	}
		2931
		2932	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2933	cf::face::set_type $idx, $info->{type};
		2934
		2935	cf::cede_to_tick;
		2936	}
		2937
		2938	if ($soundconf) {
		2939	$soundconf = $enc->decode (delete $soundconf->{data});
		2940
		2941	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2942	my $sound = $soundconf->{compat}[$_]
		2943	or next;
		2944
		2945	my $face = cf::face::find "sound/$sound->[1]";
		2946	cf::sound::set $sound->[0] => $face;
		2947	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2948	}
		2949
		2950	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2951	my $face = cf::face::find "sound/$v";
		2952	cf::sound::set $k => $face;
		2953	}
		2954	}
		2955	}
		2956
2506	1	2957	1
2507	}	2958	}
2508		2959
		2960	register_exticmd fx_want => sub {
		2961	my ($ns, $want) = @_;
		2962
		2963	while (my ($k, $v) = each %$want) {
		2964	$ns->fx_want ($k, $v);
		2965	}
		2966	};
		2967
2509	sub reload_regions {	2968	sub reload_regions {
		2969	# HACK to clear player env face cache, we need some signal framework
		2970	# for this (global event?)
		2971	%ext::player_env::MUSIC_FACE_CACHE = ();
		2972
2510	load_resource_file "$MAPDIR/regions"	2973	load_resource_file "$MAPDIR/regions"
2511	or die "unable to load regions file\n";	2974	or die "unable to load regions file\n";
		2975
		2976	for (cf::region::list) {
		2977	$_->{match} = qr/$_->{match}/
		2978	if exists $_->{match};
		2979	}
2512	}	2980	}
2513		2981
2514	sub reload_facedata {	2982	sub reload_facedata {
2515	load_facedata "$DATADIR/facedata"	2983	load_facedata "$DATADIR/facedata"
2516	or die "unable to load facedata\n";	2984	or die "unable to load facedata\n";
2517	}	2985	}
2518		2986
2519	sub reload_archetypes {	2987	sub reload_archetypes {
2520	load_resource_file "$DATADIR/archetypes"	2988	load_resource_file "$DATADIR/archetypes"
2521	or die "unable to load archetypes\n";	2989	or die "unable to load archetypes\n";
		2990	#d# NEED to laod twice to resolve forward references
		2991	# this really needs to be done in an extra post-pass
		2992	# (which needs to be synchronous, so solve it differently)
		2993	load_resource_file "$DATADIR/archetypes"
		2994	or die "unable to load archetypes\n";
2522	}	2995	}
2523		2996
2524	sub reload_treasures {	2997	sub reload_treasures {
2525	load_resource_file "$DATADIR/treasures"	2998	load_resource_file "$DATADIR/treasures"
2526	or die "unable to load treasurelists\n";	2999	or die "unable to load treasurelists\n";
…		…
2529	sub reload_resources {	3002	sub reload_resources {
2530	warn "reloading resource files...\n";	3003	warn "reloading resource files...\n";
2531		3004
2532	reload_regions;	3005	reload_regions;
2533	reload_facedata;	3006	reload_facedata;
		3007	#reload_archetypes;#d#
2534	reload_archetypes;	3008	reload_archetypes;
2535	reload_treasures;	3009	reload_treasures;
2536		3010
2537	warn "finished reloading resource files\n";	3011	warn "finished reloading resource files\n";
2538	}	3012	}
2539		3013
2540	sub init {	3014	sub init {
2541	reload_resources;	3015	reload_resources;
2542	}	3016	}
2543		3017
2544	sub cfg_load {	3018	sub reload_config {
2545	open my $fh, "<:utf8", "$CONFDIR/config"	3019	open my $fh, "<:utf8", "$CONFDIR/config"
2546	or return;	3020	or return;
2547		3021
2548	local $/;	3022	local $/;
2549	*CFG = YAML::Syck::Load <$fh>;	3023	*CFG = YAML::Syck::Load <$fh>;
…		…
2569	(async {	3043	(async {
2570	Event::one_event;	3044	Event::one_event;
2571	})->prio (Coro::PRIO_MAX);	3045	})->prio (Coro::PRIO_MAX);
2572	};	3046	};
2573		3047
2574	cfg_load;	3048	reload_config;
2575	db_init;	3049	db_init;
2576	load_extensions;	3050	load_extensions;
2577		3051
2578	$TICK_WATCHER->start;	3052	$TICK_WATCHER->start;
2579	Event::loop;	3053	Event::loop;
…		…
2595	},	3069	},
2596	);	3070	);
2597	}	3071	}
2598	}	3072	}
2599		3073
		3074	sub write_runtime {
		3075	my $runtime = "$LOCALDIR/runtime";
		3076
		3077	# first touch the runtime file to show we are still running:
		3078	# the fsync below can take a very very long time.
		3079
		3080	IO::AIO::aio_utime $runtime, undef, undef;
		3081
		3082	my $guard = cf::lock_acquire "write_runtime";
		3083
		3084	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3085	or return;
		3086
		3087	my $value = $cf::RUNTIME + 90 + 10;
		3088	# 10 is the runtime save interval, for a monotonic clock
		3089	# 60 allows for the watchdog to kill the server.
		3090
		3091	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3092	and return;
		3093
		3094	# always fsync - this file is important
		3095	aio_fsync $fh
		3096	and return;
		3097
		3098	# touch it again to show we are up-to-date
		3099	aio_utime $fh, undef, undef;
		3100
		3101	close $fh
		3102	or return;
		3103
		3104	aio_rename "$runtime~", $runtime
		3105	and return;
		3106
		3107	warn "runtime file written.\n";
		3108
		3109	1
		3110	}
		3111
2600	sub emergency_save() {	3112	sub emergency_save() {
2601	my $freeze_guard = cf::freeze_mainloop;	3113	my $freeze_guard = cf::freeze_mainloop;
2602		3114
2603	warn "enter emergency perl save\n";	3115	warn "enter emergency perl save\n";
2604		3116
…		…
2679	%EXT_CORO = ();	3191	%EXT_CORO = ();
2680		3192
2681	warn "removing commands";	3193	warn "removing commands";
2682	%COMMAND = ();	3194	%COMMAND = ();
2683		3195
2684	warn "removing ext commands";	3196	warn "removing ext/exti commands";
2685	%EXTCMD = ();	3197	%EXTCMD = ();
		3198	%EXTICMD = ();
2686		3199
2687	warn "unloading/nuking all extensions";	3200	warn "unloading/nuking all extensions";
2688	for my $pkg (@EXTS) {	3201	for my $pkg (@EXTS) {
2689	warn "... unloading $pkg";	3202	warn "... unloading $pkg";
2690		3203
…		…
2733	warn "reloading cf.pm";	3246	warn "reloading cf.pm";
2734	require cf;	3247	require cf;
2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3248	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2736		3249
2737	warn "loading config and database again";	3250	warn "loading config and database again";
2738	cf::cfg_load;	3251	cf::reload_config;
2739		3252
2740	warn "loading extensions";	3253	warn "loading extensions";
2741	cf::load_extensions;	3254	cf::load_extensions;
2742		3255
2743	warn "reattaching attachments to objects/players";	3256	warn "reattaching attachments to objects/players";
…		…
2808	my $signal = new Coro::Signal;	3321	my $signal = new Coro::Signal;
2809	push @WAIT_FOR_TICK_BEGIN, $signal;	3322	push @WAIT_FOR_TICK_BEGIN, $signal;
2810	$signal->wait;	3323	$signal->wait;
2811	}	3324	}
2812		3325
		3326	my $min = 1e6;#d#
		3327	my $avg = 10;
2813	$TICK_WATCHER = Event->timer (	3328	$TICK_WATCHER = Event->timer (
2814	reentrant => 0,	3329	reentrant => 0,
2815	parked => 1,	3330	parked => 1,
2816	prio => 0,	3331	prio => 0,
2817	at => $NEXT_TICK || $TICK,	3332	at => $NEXT_TICK || $TICK,
…		…
2821	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3336	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2822	unless ++$bug_warning > 10;	3337	unless ++$bug_warning > 10;
2823	return;	3338	return;
2824	}	3339	}
2825		3340
2826	$NOW = Event::time;	3341	$NOW = $tick_start = Event::time;
2827		3342
2828	cf::server_tick; # one server iteration	3343	cf::server_tick; # one server iteration
		3344
		3345	0 && sync_job {#d#
		3346	for(1..10) {
		3347	my $t = Event::time;
		3348	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3349	or die;
		3350
		3351	$map->width (50);
		3352	$map->height (50);
		3353	$map->alloc;
		3354	$map->_load_objects ("/tmp/x.map", 1);
		3355	my $t = Event::time - $t;
		3356
		3357	#next unless $t < 0.0013;#d#
		3358	if ($t < $min) {
		3359	$min = $t;
		3360	}
		3361	$avg = $avg * 0.99 + $t * 0.01;
		3362	}
		3363	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3364	exit 0;
		3365	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3366	};
2829		3367
2830	$RUNTIME += $TICK;	3368	$RUNTIME += $TICK;
2831	$NEXT_TICK += $TICK;	3369	$NEXT_TICK += $TICK;
2832		3370
2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3371	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2839	}	3377	}
2840		3378
2841	# my $AFTER = Event::time;	3379	# my $AFTER = Event::time;
2842	# warn $AFTER - $NOW;#d#	3380	# warn $AFTER - $NOW;#d#
2843		3381
		3382	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3383	$sig->send;
		3384	}
		3385	while (my $sig = shift @WAIT_FOR_TICK) {
		3386	$sig->send;
		3387	}
		3388
		3389	$NOW = Event::time;
		3390
2844	# if we are delayed by four ticks or more, skip them all	3391	# if we are delayed by four ticks or more, skip them all
2845	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3392	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2846		3393
2847	$TICK_WATCHER->at ($NEXT_TICK);	3394	$TICK_WATCHER->at ($NEXT_TICK);
2848	$TICK_WATCHER->start;	3395	$TICK_WATCHER->start;
2849		3396
2850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3397	$LOAD = ($NOW - $tick_start) / $TICK;
2851	$sig->send;	3398	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2852	}
2853	while (my $sig = shift @WAIT_FOR_TICK) {
2854	$sig->send;
2855	}
2856		3399
2857	_post_tick;	3400	_post_tick;
		3401
		3402
2858	},	3403	},
2859	);	3404	);
2860		3405
2861	{	3406	{
2862	BDB::max_poll_time $TICK * 0.1;	3407	BDB::max_poll_time $TICK * 0.1;
…		…
2921	prio => 6,	3466	prio => 6,
2922	cb => \&IO::AIO::poll_cb,	3467	cb => \&IO::AIO::poll_cb,
2923	);	3468	);
2924	}	3469	}
2925		3470
		3471	my $_log_backtrace;
		3472
		3473	sub _log_backtrace {
		3474	my ($msg, @addr) = @_;
		3475
		3476	$msg =~ s/\n//;
		3477
		3478	# limit the # of concurrent backtraces
		3479	if ($_log_backtrace < 2) {
		3480	++$_log_backtrace;
		3481	async {
		3482	my @bt = fork_call {
		3483	@addr = map { sprintf "%x", $_ } @addr;
		3484	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3485	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3486	or die "addr2line: $!";
		3487
		3488	my @funcs;
		3489	my @res = <$fh>;
		3490	chomp for @res;
		3491	while (@res) {
		3492	my ($func, $line) = splice @res, 0, 2, ();
		3493	push @funcs, "[$func] $line";
		3494	}
		3495
		3496	@funcs
		3497	};
		3498
		3499	LOG llevInfo, "[ABT] $msg\n";
		3500	LOG llevInfo, "[ABT] $_\n" for @bt;
		3501	--$_log_backtrace;
		3502	};
		3503	} else {
		3504	LOG llevInfo, "[ABT] $msg\n";
		3505	LOG llevInfo, "[ABT] [suppressed]\n";
		3506	}
		3507	}
		3508
2926	# load additional modules	3509	# load additional modules
2927	use cf::pod;	3510	use cf::pod;
2928		3511
2929	END { cf::emergency_save }	3512	END { cf::emergency_save }
2930		3513

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