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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC vs.
Revision 1.345 by root, Tue Aug 28 19:30:11 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
…		…
291	};	323	};
292	$TICK_WATCHER->stop;	324	$TICK_WATCHER->stop;
293	$guard	325	$guard
294	}	326	}
295		327
		328	=item cf::get_slot $time[, $priority[, $name]]
		329
		330	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		331	This call blocks and returns only when you have at least C<$time> seconds
		332	of cpu time till the next tick. The slot is only valid till the next cede.
		333
		334	The optional C<$name> can be used to identify the job to run. It might be
		335	used for statistical purposes and should identify the same time-class.
		336
		337	Useful for short background jobs.
		338
		339	=cut
		340
		341	our @SLOT_QUEUE;
		342	our $SLOT_QUEUE;
		343
		344	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		345	$SLOT_QUEUE = Coro::async {
		346	my $signal = new Coro::Signal;
		347
		348	while () {
		349	next_job:
		350	my $avail = cf::till_tick;
		351	if ($avail > 0.01) {
		352	for (0 .. $#SLOT_QUEUE) {
		353	if ($SLOT_QUEUE[$_][0] < $avail) {
		354	my $job = splice @SLOT_QUEUE, $_, 1, ();
		355	$job->[2]->send;
		356	Coro::cede;
		357	goto next_job;
		358	}
		359	}
		360	}
		361
		362	if (@SLOT_QUEUE) {
		363	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		364	push @cf::WAIT_FOR_TICK, $signal;
		365	$signal->wait;
		366	} else {
		367	Coro::schedule;
		368	}
		369	}
		370	};
		371
		372	sub get_slot($;$$) {
		373	my ($time, $pri, $name) = @_;
		374
		375	$time = $TICK * .6 if $time > $TICK * .6;
		376	my $sig = new Coro::Signal;
		377
		378	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		379	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		380	$SLOT_QUEUE->ready;
		381	$sig->wait;
		382	}
		383
296	=item cf::async { BLOCK }	384	=item cf::async { BLOCK }
297		385
298	Currently the same as Coro::async_pool, meaning you cannot use	386	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	387	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.	388	thing you are allowed to do is call C<prio> on it.
…		…
303		391
304	BEGIN { *async = \&Coro::async_pool }	392	BEGIN { *async = \&Coro::async_pool }
305		393
306	=item cf::sync_job { BLOCK }	394	=item cf::sync_job { BLOCK }
307		395
308	The design of crossfire+ requires that the main coro ($Coro::main) is	396	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	397	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.	398	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		399	acceptable.
311		400
312	If it must be done, put the blocking parts into C<sync_job>. This will run	401	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	402	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	403	server will be frozen during this time, so the block should either finish
315	fast or be very important.	404	fast or be very important.
…		…
318		407
319	sub sync_job(&) {	408	sub sync_job(&) {
320	my ($job) = @_;	409	my ($job) = @_;
321		410
322	if ($Coro::current == $Coro::main) {	411	if ($Coro::current == $Coro::main) {
		412	my $time = Event::time;
		413
323	# this is the main coro, too bad, we have to block	414	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	415	# till the operation succeeds, freezing the server :/
325		416
326	# TODO: use suspend/resume instead	417	# TODO: use suspend/resume instead
327	# (but this is cancel-safe)	418	# (but this is cancel-safe)
…		…
338		429
339	while ($busy) {	430	while ($busy) {
340	Coro::cede or Event::one_event;	431	Coro::cede or Event::one_event;
341	}	432	}
342		433
		434	$time = Event::time - $time;
		435
		436	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		437	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		438
		439	$tick_start += $time; # do not account sync jobs to server load
		440
343	wantarray ? @res : $res[0]	441	wantarray ? @res : $res[0]
344	} else {	442	} else {
345	# we are in another coroutine, how wonderful, everything just works	443	# we are in another coroutine, how wonderful, everything just works
346		444
347	$job->()	445	$job->()
…		…
366	$EXT_CORO{$coro+0} = $coro;	464	$EXT_CORO{$coro+0} = $coro;
367		465
368	$coro	466	$coro
369	}	467	}
370		468
371	sub write_runtime {	469	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		470
374	my $runtime = "$LOCALDIR/runtime";	471	Executes the given code block with the given arguments in a seperate
		472	process, returning the results. Everything must be serialisable with
		473	Coro::Storable. May, of course, block. Note that the executed sub may
		474	never block itself or use any form of Event handling.
375		475
376	warn "starting to write runtime...\n";#d#	476	=cut
377	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
378	or return;
379		477
380	my $value = $cf::RUNTIME + 90 + 10;	478	sub fork_call(&@) {
381	# 10 is the runtime save interval, for a monotonic clock	479	my ($cb, @args) = @_;
382	# 60 allows for the watchdog to kill the server.
383		480
384	(aio_write $fh, 0, (length $value), $value, 0) <= 0	481	# we seemingly have to make a local copy of the whole thing,
385	and return;	482	# otherwise perl prematurely frees the stuff :/
		483	# TODO: investigate and fix (liekly this will be rather laborious)
386		484
387	# always fsync - this file is important	485	my @res = Coro::Util::fork_eval {
388	aio_fsync $fh	486	reset_signals;
389	and return;	487	&$cb
		488	}, @args;
390		489
391	close $fh	490	wantarray ? @res : $res[-1]
392	or return;	491	}
393		492
394	aio_rename "$runtime~", $runtime	493	=item $value = cf::db_get $family => $key
395	and return;
396		494
397	warn "... done writing runtime.\n";#d#	495	Returns a single value from the environment database.
398		496
		497	=item cf::db_put $family => $key => $value
		498
		499	Stores the given C<$value> in the family. It can currently store binary
		500	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		501
		502	=cut
		503
		504	our $DB;
		505
		506	sub db_init {
		507	unless ($DB) {
		508	$DB = BDB::db_create $DB_ENV;
		509
		510	cf::sync_job {
		511	eval {
		512	$DB->set_flags (BDB::CHKSUM);
		513
		514	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		515	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		516	cf::cleanup "db_open(db): $!" if $!;
		517	};
		518	cf::cleanup "db_open(db): $@" if $@;
		519	};
399	1	520	}
		521	}
		522
		523	sub db_get($$) {
		524	my $key = "$_[0]/$_[1]";
		525
		526	cf::sync_job {
		527	BDB::db_get $DB, undef, $key, my $data;
		528
		529	$! ? ()
		530	: $data
		531	}
		532	}
		533
		534	sub db_put($$$) {
		535	BDB::dbreq_pri 4;
		536	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		537	}
		538
		539	=item cf::cache $id => [$paths...], $processversion => $process
		540
		541	Generic caching function that returns the value of the resource $id,
		542	caching and regenerating as required.
		543
		544	This function can block.
		545
		546	=cut
		547
		548	sub cache {
		549	my ($id, $src, $processversion, $process) = @_;
		550
		551	my $meta =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	aio_stat $_
		556	and Carp::croak "$_: $!";
		557
		558	($_, (stat _)[7,9])
		559	} @$src;
		560
		561	my $dbmeta = db_get cache => "$id/meta";
		562	if ($dbmeta ne $meta) {
		563	# changed, we may need to process
		564
		565	my @data;
		566	my $md5;
		567
		568	for (0 .. $#$src) {
		569	0 <= aio_load $src->[$_], $data[$_]
		570	or Carp::croak "$src->[$_]: $!";
		571	}
		572
		573	# if processing is expensive, check
		574	# checksum first
		575	if (1) {
		576	$md5 =
		577	join "\x00",
		578	$processversion,
		579	map {
		580	Coro::cede;
		581	($src->[$_], Digest::MD5::md5_hex $data[$_])
		582	} 0.. $#$src;
		583
		584
		585	my $dbmd5 = db_get cache => "$id/md5";
		586	if ($dbmd5 eq $md5) {
		587	db_put cache => "$id/meta", $meta;
		588
		589	return db_get cache => "$id/data";
		590	}
		591	}
		592
		593	my $t1 = Time::HiRes::time;
		594	my $data = $process->(\@data);
		595	my $t2 = Time::HiRes::time;
		596
		597	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		598
		599	db_put cache => "$id/data", $data;
		600	db_put cache => "$id/md5" , $md5;
		601	db_put cache => "$id/meta", $meta;
		602
		603	return $data;
		604	}
		605
		606	db_get cache => "$id/data"
400	}	607	}
401		608
402	=item cf::datalog type => key => value, ...	609	=item cf::datalog type => key => value, ...
403		610
404	Log a datalog packet of the given type with the given key-value pairs.	611	Log a datalog packet of the given type with the given key-value pairs.
…		…
422	attach callbacks/event handlers (a collection of which is called an "attachment")	629	attach callbacks/event handlers (a collection of which is called an "attachment")
423	to it. All such attachable objects support the following methods.	630	to it. All such attachable objects support the following methods.
424		631
425	In the following description, CLASS can be any of C<global>, C<object>	632	In the following description, CLASS can be any of C<global>, C<object>
426	C<player>, C<client> or C<map> (i.e. the attachable objects in	633	C<player>, C<client> or C<map> (i.e. the attachable objects in
427	crossfire+).	634	Crossfire TRT).
428		635
429	=over 4	636	=over 4
430		637
431	=item $attachable->attach ($attachment, key => $value...)	638	=item $attachable->attach ($attachment, key => $value...)
432		639
…		…
595	$registry = $CB_TYPE[$object_type] ||= [];	802	$registry = $CB_TYPE[$object_type] ||= [];
596		803
597	} elsif ($type eq "subtype") {	804	} elsif ($type eq "subtype") {
598	defined $object_type or Carp::croak "subtype specified without type";	805	defined $object_type or Carp::croak "subtype specified without type";
599	my $object_subtype = shift @arg;	806	my $object_subtype = shift @arg;
600	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	807	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
601		808
602	} elsif ($type eq "package") {	809	} elsif ($type eq "package") {
603	my $pkg = shift @arg;	810	my $pkg = shift @arg;
604		811
605	while (my ($name, $id) = each %cb_id) {	812	while (my ($name, $id) = each %cb_id) {
…		…
634	_attach $registry, $klass, @attach;	841	_attach $registry, $klass, @attach;
635	}	842	}
636		843
637	$obj->{$name} = \%arg;	844	$obj->{$name} = \%arg;
638	} else {	845	} else {
639	warn "object uses attachment '$name' that is not available, postponing.\n";	846	warn "object uses attachment '$name' which is not available, postponing.\n";
640	}	847	}
641		848
642	$obj->{_attachment}{$name} = undef;	849	$obj->{_attachment}{$name} = undef;
643	}	850	}
644		851
…		…
646	if (ref $_[0]) {	853	if (ref $_[0]) {
647	_object_attach @_;	854	_object_attach @_;
648	} else {	855	} else {
649	_attach shift->_attach_registry, @_;	856	_attach shift->_attach_registry, @_;
650	}	857	}
		858	_recalc_want;
651	};	859	};
652		860
653	# all those should be optimised	861	# all those should be optimised
654	sub cf::attachable::detach {	862	sub cf::attachable::detach {
655	my ($obj, $name) = @_;	863	my ($obj, $name) = @_;
…		…
658	delete $obj->{_attachment}{$name};	866	delete $obj->{_attachment}{$name};
659	reattach ($obj);	867	reattach ($obj);
660	} else {	868	} else {
661	Carp::croak "cannot, currently, detach class attachments";	869	Carp::croak "cannot, currently, detach class attachments";
662	}	870	}
		871	_recalc_want;
663	};	872	};
664		873
665	sub cf::attachable::attached {	874	sub cf::attachable::attached {
666	my ($obj, $name) = @_;	875	my ($obj, $name) = @_;
667		876
…		…
682	";	891	";
683	die if $@;	892	die if $@;
684	}	893	}
685		894
686	our $override;	895	our $override;
687	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	896	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
688		897
689	sub override {	898	sub override {
690	$override = 1;	899	$override = 1;
691	@invoke_results = ();	900	@INVOKE_RESULTS = (@_);
692	}	901	}
693		902
694	sub do_invoke {	903	sub do_invoke {
695	my $event = shift;	904	my $event = shift;
696	my $callbacks = shift;	905	my $callbacks = shift;
697		906
698	@invoke_results = ();	907	@INVOKE_RESULTS = ();
699		908
700	local $override;	909	local $override;
701		910
702	for (@$callbacks) {	911	for (@$callbacks) {
703	eval { &{$_->[1]} };	912	eval { &{$_->[1]} };
…		…
720		929
721	Generate an object-specific event with the given arguments.	930	Generate an object-specific event with the given arguments.
722		931
723	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	932	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
724	removed in future versions), and there is no public API to access override	933	removed in future versions), and there is no public API to access override
725	results (if you must, access C<@cf::invoke_results> directly).	934	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
726		935
727	=back	936	=back
728		937
729	=cut	938	=cut
730		939
731	#############################################################################	940	#############################################################################
732	# object support	941	# object support
		942	#
		943
		944	sub _can_merge {
		945	my ($ob1, $ob2) = @_;
		946
		947	local $Storable::canonical = 1;
		948	my $fob1 = Storable::freeze $ob1;
		949	my $fob2 = Storable::freeze $ob2;
		950
		951	$fob1 eq $fob2
		952	}
733		953
734	sub reattach {	954	sub reattach {
735	# basically do the same as instantiate, without calling instantiate	955	# basically do the same as instantiate, without calling instantiate
736	my ($obj) = @_;	956	my ($obj) = @_;
737		957
…		…
840	or return;	1060	or return;
841	$av = eval { (Storable::thaw $av)->{objs} };	1061	$av = eval { (Storable::thaw $av)->{objs} };
842	}	1062	}
843		1063
844	warn sprintf "loading %s (%d)\n",	1064	warn sprintf "loading %s (%d)\n",
845	$filename, length $data, scalar @{$av || []};#d#	1065	$filename, length $data, scalar @{$av || []};
846	return ($data, $av);	1066	return ($data, $av);
847	}	1067	}
		1068
		1069	=head2 COMMAND CALLBACKS
		1070
		1071	=over 4
		1072
		1073	=cut
848		1074
849	#############################################################################	1075	#############################################################################
850	# command handling &c	1076	# command handling &c
851		1077
852	=item cf::register_command $name => \&callback($ob,$args);	1078	=item cf::register_command $name => \&callback($ob,$args);
…		…
865	push @{ $COMMAND{$name} }, [$caller, $cb];	1091	push @{ $COMMAND{$name} }, [$caller, $cb];
866	}	1092	}
867		1093
868	=item cf::register_extcmd $name => \&callback($pl,$packet);	1094	=item cf::register_extcmd $name => \&callback($pl,$packet);
869		1095
870	Register a callbackf ro execution when the client sends an extcmd packet.	1096	Register a callback for execution when the client sends an (synchronous)
		1097	extcmd packet. Ext commands will be processed in the order they are
		1098	received by the server, like other user commands. The first argument is
		1099	the logged-in player. Ext commands can only be processed after a player
		1100	has logged in successfully.
871		1101
872	If the callback returns something, it is sent back as if reply was being	1102	If the callback returns something, it is sent back as if reply was being
873	called.	1103	called.
874		1104
		1105	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1106
		1107	Register a callback for execution when the client sends an (asynchronous)
		1108	exticmd packet. Exti commands are processed by the server as soon as they
		1109	are received, i.e. out of order w.r.t. other commands. The first argument
		1110	is a client socket. Exti commands can be received anytime, even before
		1111	log-in.
		1112
		1113	If the callback returns something, it is sent back as if reply was being
		1114	called.
		1115
875	=cut	1116	=cut
876		1117
877	sub register_extcmd {	1118	sub register_extcmd {
878	my ($name, $cb) = @_;	1119	my ($name, $cb) = @_;
879		1120
880	$EXTCMD{$name} = $cb;	1121	$EXTCMD{$name} = $cb;
		1122	}
		1123
		1124	sub register_exticmd {
		1125	my ($name, $cb) = @_;
		1126
		1127	$EXTICMD{$name} = $cb;
881	}	1128	}
882		1129
883	cf::player->attach (	1130	cf::player->attach (
884	on_command => sub {	1131	on_command => sub {
885	my ($pl, $name, $params) = @_;	1132	my ($pl, $name, $params) = @_;
…		…
894	cf::override;	1141	cf::override;
895	},	1142	},
896	on_extcmd => sub {	1143	on_extcmd => sub {
897	my ($pl, $buf) = @_;	1144	my ($pl, $buf) = @_;
898		1145
899	my $msg = eval { from_json $buf };	1146	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
900		1147
901	if (ref $msg) {	1148	if (ref $msg) {
		1149	my ($type, $reply, @payload) =
		1150	"ARRAY" eq ref $msg
		1151	? @$msg
		1152	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1153
		1154	my @reply;
		1155
902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1156	if (my $cb = $EXTCMD{$type}) {
903	if (my %reply = $cb->($pl, $msg)) {	1157	@reply = $cb->($pl, @payload);
904	$pl->ext_reply ($msg->{msgid}, %reply);
905	}
906	}	1158	}
		1159
		1160	$pl->ext_reply ($reply, @reply)
		1161	if $reply;
		1162
907	} else {	1163	} else {
908	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1164	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
909	}	1165	}
910		1166
911	cf::override;	1167	cf::override;
912	},	1168	},
913	);	1169	);
914		1170
915	sub load_extension {
916	my ($path) = @_;
917
918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
919	my $base = $1;
920	my $pkg = $1;
921	$pkg =~ s/[^[:word:]]/_/g;
922	$pkg = "ext::$pkg";
923
924	warn "... loading '$path' into '$pkg'\n";
925
926	open my $fh, "<:utf8", $path
927	or die "$path: $!";
928
929	my $source =
930	"package $pkg; use strict; use utf8;\n"
931	. "#line 1 \"$path\"\n{\n"
932	. (do { local $/; <$fh> })
933	. "\n};\n1";
934
935	unless (eval $source) {
936	my $msg = $@ ? "$path: $@\n"
937	: "extension disabled.\n";
938	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
939	warn $@;
940	warn "mandatory extension failed to load, exiting.\n";
941	exit 1;
942	}
943	die $@;
944	}
945
946	push @EXTS, $pkg;
947	}
948
949	sub load_extensions {	1171	sub load_extensions {
		1172	cf::sync_job {
		1173	my %todo;
		1174
950	for my $ext (<$LIBDIR/*.ext>) {	1175	for my $path (<$LIBDIR/*.ext>) {
951	next unless -r $ext;	1176	next unless -r $path;
952	eval {	1177
953	load_extension $ext;	1178	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1179	my $base = $1;
		1180	my $pkg = $1;
		1181	$pkg =~ s/[^[:word:]]/_/g;
		1182	$pkg = "ext::$pkg";
		1183
		1184	open my $fh, "<:utf8", $path
		1185	or die "$path: $!";
		1186
		1187	my $source = do { local $/; <$fh> };
		1188
		1189	my %ext = (
		1190	path => $path,
		1191	base => $base,
		1192	pkg => $pkg,
		1193	);
		1194
		1195	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1196	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1197
		1198	$ext{source} =
		1199	"package $pkg; use strict; use utf8;\n"
		1200	. "#line 1 \"$path\"\n{\n"
		1201	. $source
		1202	. "\n};\n1";
		1203
		1204	$todo{$base} = \%ext;
		1205	}
		1206
		1207	my %done;
		1208	while (%todo) {
		1209	my $progress;
		1210
		1211	while (my ($k, $v) = each %todo) {
		1212	for (split /,\s*/, $v->{meta}{depends}) {
		1213	goto skip
		1214	unless exists $done{$_};
		1215	}
		1216
		1217	warn "... loading '$k' into '$v->{pkg}'\n";
		1218
		1219	unless (eval $v->{source}) {
		1220	my $msg = $@ ? "$v->{path}: $@\n"
		1221	: "$v->{base}: extension inactive.\n";
		1222
		1223	if (exists $v->{meta}{mandatory}) {
		1224	warn $msg;
		1225	warn "mandatory extension failed to load, exiting.\n";
		1226	exit 1;
		1227	}
		1228
		1229	warn $msg;
		1230	}
		1231
		1232	$done{$k} = delete $todo{$k};
		1233	push @EXTS, $v->{pkg};
		1234	$progress = 1;
954	1	1235	}
955	} or warn "$ext not loaded: $@";	1236
		1237	skip:
		1238	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1239	unless $progress;
		1240	}
956	}	1241	};
957	}	1242	}
958		1243
959	#############################################################################	1244	#############################################################################
		1245
		1246	=back
960		1247
961	=head2 CORE EXTENSIONS	1248	=head2 CORE EXTENSIONS
962		1249
963	Functions and methods that extend core crossfire objects.	1250	Functions and methods that extend core crossfire objects.
964		1251
…		…
1051	$cf::PLAYER{$login} = $self;	1338	$cf::PLAYER{$login} = $self;
1052		1339
1053	$self	1340	$self
1054	}	1341	}
1055		1342
		1343	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1344
		1345	=cut
		1346
		1347	sub send_msg {
		1348	my $ns = shift->ns
		1349	or return;
		1350	$ns->send_msg (@_);
		1351	}
		1352
1056	=item $pl->quit_character	1353	=item $pl->quit_character
1057		1354
1058	Nukes the player without looking back. If logged in, the connection will	1355	Nukes the player without looking back. If logged in, the connection will
1059	be destroyed. May block for a long time.	1356	be destroyed. May block for a long time.
1060		1357
…		…
1152	}	1449	}
1153		1450
1154	\@paths	1451	\@paths
1155	}	1452	}
1156		1453
		1454	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1455
		1456	Expand crossfire pod fragments into protocol xml.
		1457
		1458	=cut
		1459
		1460	sub expand_cfpod {
		1461	((my $self), (local $_)) = @_;
		1462
		1463	# escape & and <
		1464	s/&/&amp;/g;
		1465	s/(?<![BIUGH])</&lt;/g;
		1466
		1467	# this is buggy, it needs to properly take care of nested <'s
		1468
		1469	1 while
		1470	# replace B<>, I<>, U<> etc.
		1471	s/B<([^\>]*)>/<b>$1<\/b>/
		1472	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1473	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1474	# replace G<male|female> tags
		1475	|| s{G<([^>|]*)\|([^>]*)>}{
		1476	$self->gender ? $2 : $1
		1477	}ge
		1478	# replace H<hint text>
		1479	|| s{H<([^\>]*)>}
		1480	{
		1481	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1482	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1483	"")
		1484	[$self->{hintmode}]
		1485	}ge;
		1486
		1487	# create single paragraphs (very hackish)
		1488	s/(?<=\S)\n(?=\w)/ /g;
		1489
		1490	# compress some whitespace
		1491	s/\s+\n/\n/g; # ws line-ends
		1492	s/\n\n+/\n/g; # double lines
		1493	s/^\n+//; # beginning lines
		1494	s/\n+$//; # ending lines
		1495
		1496	$_
		1497	}
		1498
		1499	sub hintmode {
		1500	$_[0]{hintmode} = $_[1] if @_ > 1;
		1501	$_[0]{hintmode}
		1502	}
		1503
1157	=item $player->ext_reply ($msgid, %msg)	1504	=item $player->ext_reply ($msgid, @msg)
1158		1505
1159	Sends an ext reply to the player.	1506	Sends an ext reply to the player.
1160		1507
1161	=cut	1508	=cut
1162		1509
1163	sub ext_reply($$%) {	1510	sub ext_reply($$@) {
1164	my ($self, $id, %msg) = @_;	1511	my ($self, $id, @msg) = @_;
1165		1512
1166	$msg{msgid} = $id;	1513	$self->ns->ext_reply ($id, @msg)
1167
1168	$self->send ("ext " . cf::to_json \%msg);
1169	}	1514	}
1170		1515
1171	=item $player->ext_event ($type, %msg)	1516	=item $player->ext_msg ($type, @msg)
1172		1517
1173	Sends an ext event to the client.	1518	Sends an ext event to the client.
1174		1519
1175	=cut	1520	=cut
1176		1521
1177	sub ext_event($$%) {	1522	sub ext_msg($$@) {
1178	my ($self, $type, %msg) = @_;	1523	my ($self, $type, @msg) = @_;
1179		1524
1180	$self->ns->ext_event ($type, %msg);	1525	$self->ns->ext_msg ($type, @msg);
1181	}	1526	}
1182		1527
1183	=head3 cf::region	1528	=head3 cf::region
1184		1529
1185	=over 4	1530	=over 4
…		…
1188		1533
1189	package cf::region;	1534	package cf::region;
1190		1535
1191	=item cf::region::find_by_path $path	1536	=item cf::region::find_by_path $path
1192		1537
1193	Tries to decuce the probable region for a map knowing only its path.	1538	Tries to decuce the likely region for a map knowing only its path.
1194		1539
1195	=cut	1540	=cut
1196		1541
1197	sub find_by_path($) {	1542	sub find_by_path($) {
1198	my ($path) = @_;	1543	my ($path) = @_;
1199		1544
1200	my ($match, $specificity);	1545	my ($match, $specificity);
1201		1546
1202	for my $region (list) {	1547	for my $region (list) {
1203	if ($region->match && $path =~ $region->match) {	1548	if ($region->{match} && $path =~ $region->{match}) {
1204	($match, $specificity) = ($region, $region->specificity)	1549	($match, $specificity) = ($region, $region->specificity)
1205	if $region->specificity > $specificity;	1550	if $region->specificity > $specificity;
1206	}	1551	}
1207	}	1552	}
1208		1553
…		…
1272	my ($self, $merge) = @_;	1617	my ($self, $merge) = @_;
1273		1618
1274	# we have to keep some variables in memory intact	1619	# we have to keep some variables in memory intact
1275	local $self->{path};	1620	local $self->{path};
1276	local $self->{load_path};	1621	local $self->{load_path};
1277	local $self->{deny_save};
1278	local $self->{deny_reset};
1279		1622
1280	$self->SUPER::thawer_merge ($merge);	1623	$self->SUPER::thawer_merge ($merge);
1281	}	1624	}
1282		1625
1283	sub normalise {	1626	sub normalise {
…		…
1330	$self->init; # pass $1 etc.	1673	$self->init; # pass $1 etc.
1331	return $self;	1674	return $self;
1332	}	1675	}
1333	}	1676	}
1334		1677
1335	Carp::carp "unable to resolve path '$path' (base '$base').";	1678	Carp::cluck "unable to resolve path '$path' (base '$base').";
1336	()	1679	()
1337	}	1680	}
1338		1681
1339	sub init {	1682	sub init {
1340	my ($self) = @_;	1683	my ($self) = @_;
…		…
1381	sub change_all_map_light {	1724	sub change_all_map_light {
1382	my ($change) = @_;	1725	my ($change) = @_;
1383		1726
1384	$_->change_map_light ($change)	1727	$_->change_map_light ($change)
1385	for grep $_->outdoor, values %cf::MAP;	1728	for grep $_->outdoor, values %cf::MAP;
		1729	}
		1730
		1731	sub decay_objects {
		1732	my ($self) = @_;
		1733
		1734	return if $self->{deny_reset};
		1735
		1736	$self->do_decay_objects;
1386	}	1737	}
1387		1738
1388	sub unlink_save {	1739	sub unlink_save {
1389	my ($self) = @_;	1740	my ($self) = @_;
1390		1741
…		…
1448	$self->load_header_orig	1799	$self->load_header_orig
1449	or return;	1800	or return;
1450	$self->prepare_orig;	1801	$self->prepare_orig;
1451	}	1802	}
1452		1803
		1804	$self->{deny_reset} = 1
		1805	if $self->no_reset;
		1806
1453	$self->default_region (cf::region::find_by_path $self->{path})	1807	$self->default_region (cf::region::find_by_path $self->{path})
1454	unless $self->default_region;	1808	unless $self->default_region;
1455		1809
1456	1	1810	1
1457	}	1811	}
…		…
1472	$map->{last_save} = $cf::RUNTIME;	1826	$map->{last_save} = $cf::RUNTIME;
1473		1827
1474	$map->load_header	1828	$map->load_header
1475	or return;	1829	or return;
1476		1830
1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1831	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1478	# doing this can freeze the server in a sync job, obviously	1832	# doing this can freeze the server in a sync job, obviously
1479	#$cf::WAIT_FOR_TICK->wait;	1833	#$cf::WAIT_FOR_TICK->wait;
1480	$map->reset;	1834	$map->reset;
1481	undef $guard;	1835	undef $guard;
1482	return find $path;	1836	return find $path;
…		…
1495	local $self->{deny_reset} = 1; # loading can take a long time	1849	local $self->{deny_reset} = 1; # loading can take a long time
1496		1850
1497	my $path = $self->{path};	1851	my $path = $self->{path};
1498		1852
1499	{	1853	{
		1854	my $guard1 = cf::lock_acquire "map_data:$path";
1500	my $guard = cf::lock_acquire "map_load:$path";	1855	my $guard2 = cf::lock_acquire "map_load:$path";
1501		1856
1502	return if $self->in_memory != cf::MAP_SWAPPED;	1857	return if $self->in_memory != cf::MAP_SWAPPED;
1503		1858
1504	$self->in_memory (cf::MAP_LOADING);	1859	$self->in_memory (cf::MAP_LOADING);
1505		1860
…		…
1537	$self->set_darkness_map;	1892	$self->set_darkness_map;
1538	Coro::cede;	1893	Coro::cede;
1539	$self->activate;	1894	$self->activate;
1540	}	1895	}
1541		1896
		1897	$self->{last_save} = $cf::RUNTIME;
		1898	$self->last_access ($cf::RUNTIME);
		1899
1542	$self->in_memory (cf::MAP_IN_MEMORY);	1900	$self->in_memory (cf::MAP_IN_MEMORY);
1543	}	1901	}
1544		1902
1545	$self->post_load;	1903	$self->post_load;
1546	}	1904	}
…		…
1549	my ($self, $ob) = @_;	1907	my ($self, $ob) = @_;
1550		1908
1551	return find "~" . $ob->name . "/" . $self->{path}	1909	return find "~" . $ob->name . "/" . $self->{path}
1552	if $self->per_player;	1910	if $self->per_player;
1553		1911
		1912	# return find "?party/" . $ob->name . "/" . $self->{path}
		1913	# if $self->per_party;
		1914
1554	$self	1915	$self
1555	}	1916	}
1556		1917
1557	# find and load all maps in the 3x3 area around a map	1918	# find and load all maps in the 3x3 area around a map
1558	sub load_diag {	1919	sub load_neighbours {
1559	my ($map) = @_;	1920	my ($map) = @_;
1560		1921
1561	my @diag; # diagonal neighbours	1922	my @neigh; # diagonal neighbours
1562		1923
1563	for (0 .. 3) {	1924	for (0 .. 3) {
1564	my $neigh = $map->tile_path ($_)	1925	my $neigh = $map->tile_path ($_)
1565	or next;	1926	or next;
1566	$neigh = find $neigh, $map	1927	$neigh = find $neigh, $map
1567	or next;	1928	or next;
1568	$neigh->load;	1929	$neigh->load;
1569		1930
		1931	push @neigh,
1570	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1932	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1571	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1933	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1572	}	1934	}
1573		1935
1574	for (@diag) {	1936	for (grep defined $_->[0], @neigh) {
		1937	my ($path, $origin) = @$_;
1575	my $neigh = find @$_	1938	my $neigh = find $path, $origin
1576	or next;	1939	or next;
1577	$neigh->load;	1940	$neigh->load;
1578	}	1941	}
1579	}	1942	}
1580		1943
…		…
1585	}	1948	}
1586		1949
1587	sub do_load_sync {	1950	sub do_load_sync {
1588	my ($map) = @_;	1951	my ($map) = @_;
1589		1952
		1953	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		1954	if $Coro::current == $Coro::main;
		1955
1590	cf::sync_job { $map->load };	1956	cf::sync_job { $map->load };
1591	}	1957	}
1592		1958
1593	our %MAP_PREFETCH;	1959	our %MAP_PREFETCH;
1594	our $MAP_PREFETCHER = undef;	1960	our $MAP_PREFETCHER = undef;
1595		1961
1596	sub find_async {	1962	sub find_async {
1597	my ($path, $origin) = @_;	1963	my ($path, $origin, $load) = @_;
1598		1964
1599	$path = normalise $path, $origin && $origin->{path};	1965	$path = normalise $path, $origin && $origin->{path};
1600		1966
1601	if (my $map = $cf::MAP{$path}) {	1967	if (my $map = $cf::MAP{$path}) {
1602	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1968	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1603	}	1969	}
1604		1970
1605	undef $MAP_PREFETCH{$path};	1971	$MAP_PREFETCH{$path} |= $load;
		1972
1606	$MAP_PREFETCHER ||= cf::async {	1973	$MAP_PREFETCHER ||= cf::async {
1607	while (%MAP_PREFETCH) {	1974	while (%MAP_PREFETCH) {
1608	for my $path (keys %MAP_PREFETCH) {	1975	while (my ($k, $v) = each %MAP_PREFETCH) {
1609	my $map = find $path	1976	if (my $map = find $k) {
1610	or next;
1611	$map->load;	1977	$map->load if $v;
		1978	}
1612		1979
1613	delete $MAP_PREFETCH{$path};	1980	delete $MAP_PREFETCH{$k};
1614	}	1981	}
1615	}	1982	}
1616	undef $MAP_PREFETCHER;	1983	undef $MAP_PREFETCHER;
1617	};	1984	};
1618	$MAP_PREFETCHER->prio (6);	1985	$MAP_PREFETCHER->prio (6);
…		…
1621	}	1988	}
1622		1989
1623	sub save {	1990	sub save {
1624	my ($self) = @_;	1991	my ($self) = @_;
1625		1992
1626	my $lock = cf::lock_acquire "map_data:" . $self->path;	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1627		1994
1628	$self->{last_save} = $cf::RUNTIME;	1995	$self->{last_save} = $cf::RUNTIME;
1629		1996
1630	return unless $self->dirty;	1997	return unless $self->dirty;
1631		1998
…		…
1654	my ($self) = @_;	2021	my ($self) = @_;
1655		2022
1656	# save first because save cedes	2023	# save first because save cedes
1657	$self->save;	2024	$self->save;
1658		2025
1659	my $lock = cf::lock_acquire "map_data:" . $self->path;	2026	my $lock = cf::lock_acquire "map_data:$self->{path}";
1660		2027
1661	return if $self->players;	2028	return if $self->players;
1662	return if $self->in_memory != cf::MAP_IN_MEMORY;	2029	return if $self->in_memory != cf::MAP_IN_MEMORY;
1663	return if $self->{deny_save};	2030	return if $self->{deny_save};
1664		2031
…		…
1668		2035
1669	sub reset_at {	2036	sub reset_at {
1670	my ($self) = @_;	2037	my ($self) = @_;
1671		2038
1672	# TODO: safety, remove and allow resettable per-player maps	2039	# TODO: safety, remove and allow resettable per-player maps
1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1674	return 1e99 if $self->{deny_reset};	2040	return 1e99 if $self->{deny_reset};
1675		2041
1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2042	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2043	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1678		2044
…		…
1689	my ($self) = @_;	2055	my ($self) = @_;
1690		2056
1691	my $lock = cf::lock_acquire "map_data:$self->{path}";	2057	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2058
1693	return if $self->players;	2059	return if $self->players;
1694	return if $self->isa ("ext::map_per_player");#d#
1695		2060
1696	warn "resetting map ", $self->path;#d#	2061	warn "resetting map ", $self->path;
1697		2062
1698	$self->in_memory (cf::MAP_SWAPPED);	2063	$self->in_memory (cf::MAP_SWAPPED);
1699		2064
1700	# need to save uniques path	2065	# need to save uniques path
1701	unless ($self->{deny_save}) {	2066	unless ($self->{deny_save}) {
…		…
1733	$cf::MAP{$self->path} = $self;	2098	$cf::MAP{$self->path} = $self;
1734		2099
1735	$self->reset; # polite request, might not happen	2100	$self->reset; # polite request, might not happen
1736	}	2101	}
1737		2102
		2103	=item $maps = cf::map::tmp_maps
		2104
		2105	Returns an arrayref with all map paths of currently instantiated and saved
		2106	maps. May block.
		2107
		2108	=cut
		2109
		2110	sub tmp_maps() {
		2111	[
		2112	map {
		2113	utf8::decode $_;
		2114	/\.map$/
		2115	? normalise $_
		2116	: ()
		2117	} @{ aio_readdir $TMPDIR or [] }
		2118	]
		2119	}
		2120
		2121	=item $maps = cf::map::random_maps
		2122
		2123	Returns an arrayref with all map paths of currently instantiated and saved
		2124	random maps. May block.
		2125
		2126	=cut
		2127
		2128	sub random_maps() {
		2129	[
		2130	map {
		2131	utf8::decode $_;
		2132	/\.map$/
		2133	? normalise "?random/$_"
		2134	: ()
		2135	} @{ aio_readdir $RANDOMDIR or [] }
		2136	]
		2137	}
		2138
1738	=item cf::map::unique_maps	2139	=item cf::map::unique_maps
1739		2140
1740	Returns an arrayref of paths of all shared maps that have	2141	Returns an arrayref of paths of all shared maps that have
1741	instantiated unique items. May block.	2142	instantiated unique items. May block.
1742		2143
1743	=cut	2144	=cut
1744		2145
1745	sub unique_maps() {	2146	sub unique_maps() {
1746	my $files = aio_readdir $UNIQUEDIR	2147	[
1747	or return;	2148	map {
1748
1749	my @paths;
1750
1751	for (@$files) {
1752	utf8::decode $_;	2149	utf8::decode $_;
1753	next if /\.pst$/;	2150	/\.map$/
1754	next unless /^$PATH_SEP/o;	2151	? normalise $_
1755		2152	: ()
1756	push @paths, cf::map::normalise $_;	2153	} @{ aio_readdir $UNIQUEDIR or [] }
1757	}	2154	]
1758
1759	\@paths
1760	}	2155	}
1761		2156
1762	package cf;	2157	package cf;
1763		2158
1764	=back	2159	=back
…		…
1810		2205
1811	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2206	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1812		2207
1813	if ($self->{record_replies}) {	2208	if ($self->{record_replies}) {
1814	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2209	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2210
1815	} else {	2211	} else {
		2212	my $pl = $self->contr;
		2213
		2214	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2215	my $dialog = $pl->{npc_dialog};
		2216	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2217
		2218	} else {
1816	$msg = $npc->name . " says: $msg" if $npc;	2219	$msg = $npc->name . " says: $msg" if $npc;
1817	$self->message ($msg, $flags);	2220	$self->message ($msg, $flags);
		2221	}
1818	}	2222	}
		2223	}
		2224
		2225	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2226
		2227	=cut
		2228
		2229	sub cf::object::send_msg {
		2230	my $pl = shift->contr
		2231	or return;
		2232	$pl->send_msg (@_);
1819	}	2233	}
1820		2234
1821	=item $player_object->may ("access")	2235	=item $player_object->may ("access")
1822		2236
1823	Returns wether the given player is authorized to access resource "access"	2237	Returns wether the given player is authorized to access resource "access"
…		…
1870	$self->deactivate_recursive;	2284	$self->deactivate_recursive;
1871		2285
1872	return if UNIVERSAL::isa $self->map, "ext::map_link";	2286	return if UNIVERSAL::isa $self->map, "ext::map_link";
1873		2287
1874	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2288	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1875	if $self->map;	2289	if $self->map && $self->map->{path} ne "{link}";
1876		2290
1877	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2291	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1878	}	2292	}
1879		2293
1880	sub cf::object::player::leave_link {	2294	sub cf::object::player::leave_link {
1881	my ($self, $map, $x, $y) = @_;	2295	my ($self, $map, $x, $y) = @_;
		2296
		2297	return unless $self->contr->active;
1882		2298
1883	my $link_pos = delete $self->{_link_pos};	2299	my $link_pos = delete $self->{_link_pos};
1884		2300
1885	unless ($map) {	2301	unless ($map) {
1886	# restore original map position	2302	# restore original map position
…		…
1900	# use -1 or undef as default coordinates, not 0, 0	2316	# use -1 or undef as default coordinates, not 0, 0
1901	($x, $y) = ($map->enter_x, $map->enter_y)	2317	($x, $y) = ($map->enter_x, $map->enter_y)
1902	if $x <=0 && $y <= 0;	2318	if $x <=0 && $y <= 0;
1903		2319
1904	$map->load;	2320	$map->load;
1905	$map->load_diag;	2321	$map->load_neighbours;
1906		2322
1907	return unless $self->contr->active;	2323	return unless $self->contr->active;
1908	$self->activate_recursive;	2324	$self->activate_recursive;
1909		2325
1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2326	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1911	$self->enter_map ($map, $x, $y);	2327	$self->enter_map ($map, $x, $y);
1912	}	2328	}
1913		2329
1914	cf::player->attach (	2330	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1915	on_logout => sub {
1916	my ($pl) = @_;
1917		2331
1918	# abort map switching before logout	2332	Moves the player to the given map-path and coordinates by first freezing
1919	if ($pl->ob->{_link_pos}) {	2333	her, loading and preparing them map, calling the provided $check callback
1920	cf::sync_job {	2334	that has to return the map if sucecssful, and then unfreezes the player on
1921	$pl->ob->leave_link	2335	the new (success) or old (failed) map position. In either case, $done will
1922	};	2336	be called at the end of this process.
1923	}
1924	},
1925	on_login => sub {
1926	my ($pl) = @_;
1927		2337
1928	# try to abort aborted map switching on player login :)
1929	# should happen only on crashes
1930	if ($pl->ob->{_link_pos}) {
1931	$pl->ob->enter_link;
1932	(async {
1933	$pl->ob->reply (undef,
1934	"There was an internal problem at your last logout, "
1935	. "the server will try to bring you to your intended destination in a second.",
1936	cf::NDI_RED);
1937	# we need this sleep as the login has a concurrent enter_exit running
1938	# and this sleep increases chances of the player not ending up in scorn
1939	Coro::Timer::sleep 1;
1940	$pl->ob->leave_link;
1941	})->prio (2);
1942	}
1943	},
1944	);
1945
1946	=item $player_object->goto ($path, $x, $y)
1947
1948	=cut	2338	=cut
		2339
		2340	our $GOTOGEN;
1949		2341
1950	sub cf::object::player::goto {	2342	sub cf::object::player::goto {
1951	my ($self, $path, $x, $y) = @_;	2343	my ($self, $path, $x, $y, $check, $done) = @_;
		2344
		2345	# do generation counting so two concurrent goto's will be executed in-order
		2346	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1952		2347
1953	$self->enter_link;	2348	$self->enter_link;
1954		2349
1955	(async {	2350	(async {
1956	my $map = eval {	2351	my $map = eval {
1957	my $map = cf::map::find $path;	2352	my $map = cf::map::find $path;
		2353
		2354	if ($map) {
1958	$map = $map->customise_for ($self) if $map;	2355	$map = $map->customise_for ($self);
		2356	$map = $check->($map) if $check && $map;
		2357	} else {
		2358	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2359	}
		2360
1959	$map	2361	$map
		2362	};
		2363
		2364	if ($@) {
		2365	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2366	LOG llevError | logBacktrace, Carp::longmess $@;
1960	} or	2367	}
1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1962		2368
		2369	if ($gen == $self->{_goto_generation}) {
		2370	delete $self->{_goto_generation};
1963	$self->leave_link ($map, $x, $y);	2371	$self->leave_link ($map, $x, $y);
		2372	}
		2373
		2374	$done->() if $done;
1964	})->prio (1);	2375	})->prio (1);
1965	}	2376	}
1966		2377
1967	=item $player_object->enter_exit ($exit_object)	2378	=item $player_object->enter_exit ($exit_object)
1968		2379
…		…
2037	my $hp = $exit->stats->hp;	2448	my $hp = $exit->stats->hp;
2038	my $sp = $exit->stats->sp;	2449	my $sp = $exit->stats->sp;
2039		2450
2040	$self->enter_link;	2451	$self->enter_link;
2041		2452
		2453	# if exit is damned, update players death & WoR home-position
		2454	$self->contr->savebed ($slaying, $hp, $sp)
		2455	if $exit->flag (FLAG_DAMNED);
		2456
2042	(async {	2457	(async {
2043	$self->deactivate_recursive; # just to be sure	2458	$self->deactivate_recursive; # just to be sure
2044	unless (eval {	2459	unless (eval {
2045	$self->goto ($slaying, $hp, $sp);	2460	$self->goto ($slaying, $hp, $sp);
2046		2461
…		…
2073		2488
2074	utf8::encode $text;	2489	utf8::encode $text;
2075	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2490	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2076	}	2491	}
2077		2492
		2493	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2494
		2495	Send a drawinfo or msg packet to the client, formatting the msg for the
		2496	client if neccessary. C<$type> should be a string identifying the type of
		2497	the message, with C<log> being the default. If C<$color> is negative, suppress
		2498	the message unless the client supports the msg packet.
		2499
		2500	=cut
		2501
		2502	sub cf::client::send_msg {
		2503	my ($self, $channel, $msg, $color, @extra) = @_;
		2504
		2505	$msg = $self->pl->expand_cfpod ($msg);
		2506
		2507	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2508
		2509	if (ref $channel) {
		2510	# send meta info to client, if not yet sent
		2511	unless (exists $self->{channel}{$channel->{id}}) {
		2512	$self->{channel}{$channel->{id}} = $channel;
		2513	$self->ext_msg (channel_info => $channel);
		2514	}
		2515
		2516	$channel = $channel->{id};
		2517	}
		2518
		2519	return unless @extra || length $msg;
		2520
		2521	if ($self->can_msg) {
		2522	# default colour, mask it out
		2523	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2524	if $color & cf::NDI_DEF;
		2525
		2526	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2527	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2528	} else {
		2529	if ($color >= 0) {
		2530	# replace some tags by gcfclient-compatible ones
		2531	for ($msg) {
		2532	1 while
		2533	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2534	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2535	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2536	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2537	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2538	}
		2539
		2540	$color &= cf::NDI_COLOR_MASK;
		2541
		2542	utf8::encode $msg;
		2543
		2544	if (0 && $msg =~ /\[/) {
		2545	# COMMAND/INFO
		2546	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2547	} else {
		2548	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2549	$self->send_packet ("drawinfo $color $msg")
		2550	}
		2551	}
		2552	}
		2553	}
		2554
2078	=item $client->ext_event ($type, %msg)	2555	=item $client->ext_msg ($type, @msg)
2079		2556
2080	Sends an exti event to the client.	2557	Sends an ext event to the client.
2081		2558
2082	=cut	2559	=cut
2083		2560
2084	sub cf::client::ext_event($$%) {	2561	sub cf::client::ext_msg($$@) {
2085	my ($self, $type, %msg) = @_;	2562	my ($self, $type, @msg) = @_;
2086		2563
		2564	if ($self->extcmd == 2) {
		2565	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2566	} elsif ($self->extcmd == 1) { # TODO: remove
2087	$msg{msgtype} = "event_$type";	2567	push @msg, msgtype => "event_$type";
2088	$self->send_packet ("ext " . cf::to_json \%msg);	2568	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2569	}
		2570	}
		2571
		2572	=item $client->ext_reply ($msgid, @msg)
		2573
		2574	Sends an ext reply to the client.
		2575
		2576	=cut
		2577
		2578	sub cf::client::ext_reply($$@) {
		2579	my ($self, $id, @msg) = @_;
		2580
		2581	if ($self->extcmd == 2) {
		2582	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2583	} elsif ($self->extcmd == 1) {
		2584	#TODO: version 1, remove
		2585	unshift @msg, msgtype => "reply", msgid => $id;
		2586	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2587	}
2089	}	2588	}
2090		2589
2091	=item $success = $client->query ($flags, "text", \&cb)	2590	=item $success = $client->query ($flags, "text", \&cb)
2092		2591
2093	Queues a query to the client, calling the given callback with	2592	Queues a query to the client, calling the given callback with
2094	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2593	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2095	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2594	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2096		2595
2097	Queries can fail, so check the return code. Or don't, as queries will become	2596	Queries can fail, so check the return code. Or don't, as queries will
2098	reliable at some point in the future.	2597	become reliable at some point in the future.
2099		2598
2100	=cut	2599	=cut
2101		2600
2102	sub cf::client::query {	2601	sub cf::client::query {
2103	my ($self, $flags, $text, $cb) = @_;	2602	my ($self, $flags, $text, $cb) = @_;
…		…
2111	utf8::encode $text;	2610	utf8::encode $text;
2112	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2611	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2113		2612
2114	$self->send_packet ($self->{query_queue}[0][0])	2613	$self->send_packet ($self->{query_queue}[0][0])
2115	if @{ $self->{query_queue} } == 1;	2614	if @{ $self->{query_queue} } == 1;
		2615
		2616	1
2116	}	2617	}
2117		2618
2118	cf::client->attach (	2619	cf::client->attach (
		2620	on_connect => sub {
		2621	my ($ns) = @_;
		2622
		2623	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2624	},
2119	on_reply => sub {	2625	on_reply => sub {
2120	my ($ns, $msg) = @_;	2626	my ($ns, $msg) = @_;
2121		2627
2122	# this weird shuffling is so that direct followup queries	2628	# this weird shuffling is so that direct followup queries
2123	# get handled first	2629	# get handled first
…		…
2135	} else {	2641	} else {
2136	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2642	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2137	}	2643	}
2138	}	2644	}
2139	},	2645	},
		2646	on_exticmd => sub {
		2647	my ($ns, $buf) = @_;
		2648
		2649	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2650
		2651	if (ref $msg) {
		2652	my ($type, $reply, @payload) =
		2653	"ARRAY" eq ref $msg
		2654	? @$msg
		2655	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2656
		2657	my @reply;
		2658
		2659	if (my $cb = $EXTICMD{$type}) {
		2660	@reply = $cb->($ns, @payload);
		2661	}
		2662
		2663	$ns->ext_reply ($reply, @reply)
		2664	if $reply;
		2665
		2666	} else {
		2667	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2668	}
		2669
		2670	cf::override;
		2671	},
2140	);	2672	);
2141		2673
2142	=item $client->async (\&cb)	2674	=item $client->async (\&cb)
2143		2675
2144	Create a new coroutine, running the specified callback. The coroutine will	2676	Create a new coroutine, running the specified callback. The coroutine will
…		…
2185	our $safe = new Safe "safe";	2717	our $safe = new Safe "safe";
2186	our $safe_hole = new Safe::Hole;	2718	our $safe_hole = new Safe::Hole;
2187		2719
2188	$SIG{FPE} = 'IGNORE';	2720	$SIG{FPE} = 'IGNORE';
2189		2721
2190	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2722	$safe->permit_only (Opcode::opset qw(
		2723	:base_core :base_mem :base_orig :base_math
		2724	grepstart grepwhile mapstart mapwhile
		2725	sort time
		2726	));
2191		2727
2192	# here we export the classes and methods available to script code	2728	# here we export the classes and methods available to script code
2193		2729
2194	=pod	2730	=pod
2195		2731
2196	The following functions and methods are available within a safe environment:	2732	The following functions and methods are available within a safe environment:
2197		2733
2198	cf::object contr pay_amount pay_player map	2734	cf::object
		2735	contr pay_amount pay_player map x y force_find force_add
		2736	insert remove name archname title slaying race decrease_ob_nr
		2737
2199	cf::object::player player	2738	cf::object::player
2200	cf::player peaceful	2739	player
2201	cf::map trigger	2740
		2741	cf::player
		2742	peaceful
		2743
		2744	cf::map
		2745	trigger
2202		2746
2203	=cut	2747	=cut
2204		2748
2205	for (	2749	for (
2206	["cf::object" => qw(contr pay_amount pay_player map)],	2750	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2751	insert remove inv name archname title slaying race
		2752	decrease_ob_nr)],
2207	["cf::object::player" => qw(player)],	2753	["cf::object::player" => qw(player)],
2208	["cf::player" => qw(peaceful)],	2754	["cf::player" => qw(peaceful)],
2209	["cf::map" => qw(trigger)],	2755	["cf::map" => qw(trigger)],
2210	) {	2756	) {
2211	no strict 'refs';	2757	no strict 'refs';
…		…
2282	=back	2828	=back
2283		2829
2284	=cut	2830	=cut
2285		2831
2286	#############################################################################	2832	#############################################################################
2287
2288	=head2 EXTENSION DATABASE SUPPORT
2289
2290	Crossfire maintains a very simple database for extension use. It can
2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2292	convert to/from binary).
2293
2294	The parameter C<$family> should best start with the name of the extension
2295	using it, it should be unique.
2296
2297	=over 4
2298
2299	=item $value = cf::db_get $family => $key
2300
2301	Returns a single value from the database.
2302
2303	=item cf::db_put $family => $key => $value
2304
2305	Stores the given C<$value> in the family.
2306
2307	=cut
2308
2309	our $DB;
2310
2311	sub db_init {
2312	unless ($DB) {
2313	$DB = BDB::db_create $DB_ENV;
2314
2315	cf::sync_job {
2316	eval {
2317	$DB->set_flags (BDB::CHKSUM);
2318
2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2320	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2321	cf::cleanup "db_open(db): $!" if $!;
2322	};
2323	cf::cleanup "db_open(db): $@" if $@;
2324	};
2325	}
2326	}
2327
2328	sub db_get($$) {
2329	my $key = "$_[0]/$_[1]";
2330
2331	cf::sync_job {
2332	BDB::db_get $DB, undef, $key, my $data;
2333
2334	$! ? ()
2335	: $data
2336	}
2337	}
2338
2339	sub db_put($$$) {
2340	BDB::dbreq_pri 4;
2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2342	}
2343
2344	=item cf::cache $id => [$paths...], $processversion => $process
2345
2346	Generic caching function that returns the value of the resource $id,
2347	caching and regenerating as required.
2348
2349	This function can block.
2350
2351	=cut
2352
2353	sub cache {
2354	my ($id, $src, $processversion, $process) = @_;
2355
2356	my $meta =
2357	join "\x00",
2358	$processversion,
2359	map {
2360	aio_stat $_
2361	and Carp::croak "$_: $!";
2362
2363	($_, (stat _)[7,9])
2364	} @$src;
2365
2366	my $dbmeta = db_get cache => "$id/meta";
2367	if ($dbmeta ne $meta) {
2368	# changed, we may need to process
2369
2370	my @data;
2371	my $md5;
2372
2373	for (0 .. $#$src) {
2374	0 <= aio_load $src->[$_], $data[$_]
2375	or Carp::croak "$src->[$_]: $!";
2376	}
2377
2378	# if processing is expensive, check
2379	# checksum first
2380	if (1) {
2381	$md5 =
2382	join "\x00",
2383	$processversion,
2384	map {
2385	Coro::cede;
2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
2387	} 0.. $#$src;
2388
2389
2390	my $dbmd5 = db_get cache => "$id/md5";
2391	if ($dbmd5 eq $md5) {
2392	db_put cache => "$id/meta", $meta;
2393
2394	return db_get cache => "$id/data";
2395	}
2396	}
2397
2398	my $t1 = Time::HiRes::time;
2399	my $data = $process->(\@data);
2400	my $t2 = Time::HiRes::time;
2401
2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2403
2404	db_put cache => "$id/data", $data;
2405	db_put cache => "$id/md5" , $md5;
2406	db_put cache => "$id/meta", $meta;
2407
2408	return $data;
2409	}
2410
2411	db_get cache => "$id/data"
2412	}
2413
2414	=item fork_call { }, $args
2415
2416	Executes the given code block with the given arguments in a seperate
2417	process, returning the results. Everything must be serialisable with
2418	Coro::Storable. May, of course, block. Note that the executed sub may
2419	never block itself or use any form of Event handling.
2420
2421	=cut
2422
2423	sub fork_call(&@) {
2424	my ($cb, @args) = @_;
2425
2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2427	# or die "socketpair: $!";
2428	pipe my $fh1, my $fh2
2429	or die "pipe: $!";
2430
2431	if (my $pid = fork) {
2432	close $fh2;
2433
2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2435	$res = Coro::Storable::thaw $res;
2436
2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2438
2439	die $$res unless "ARRAY" eq ref $res;
2440
2441	return wantarray ? @$res : $res->[-1];
2442	} else {
2443	reset_signals;
2444	local $SIG{__WARN__};
2445	local $SIG{__DIE__};
2446	eval {
2447	close $fh1;
2448
2449	my @res = eval { $cb->(@args) };
2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2451	};
2452
2453	warn $@ if $@;
2454	_exit 0;
2455	}
2456	}
2457
2458
2459
2460	#############################################################################
2461	# the server's init and main functions	2833	# the server's init and main functions
2462		2834
2463	sub load_facedata($) {	2835	sub load_facedata($) {
2464	my ($path) = @_;	2836	my ($path) = @_;
		2837
		2838	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2465		2839
2466	warn "loading facedata from $path\n";	2840	warn "loading facedata from $path\n";
2467		2841
2468	my $facedata;	2842	my $facedata;
2469	0 < aio_load $path, $facedata	2843	0 < aio_load $path, $facedata
…		…
2472	$facedata = Coro::Storable::thaw $facedata;	2846	$facedata = Coro::Storable::thaw $facedata;
2473		2847
2474	$facedata->{version} == 2	2848	$facedata->{version} == 2
2475	or cf::cleanup "$path: version mismatch, cannot proceed.";	2849	or cf::cleanup "$path: version mismatch, cannot proceed.";
2476		2850
		2851	# patch in the exptable
		2852	$facedata->{resource}{"res/exp_table"} = {
		2853	type => FT_RSRC,
		2854	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		2855	};
		2856	cf::cede_to_tick;
		2857
2477	{	2858	{
2478	my $faces = $facedata->{faceinfo};	2859	my $faces = $facedata->{faceinfo};
2479		2860
2480	while (my ($face, $info) = each %$faces) {	2861	while (my ($face, $info) = each %$faces) {
2481	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2862	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2482	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2863	cf::face::set_visibility $idx, $info->{visibility};
		2864	cf::face::set_magicmap $idx, $info->{magicmap};
2483	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2865	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2484	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2866	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2485	Coro::cede;	2867
		2868	cf::cede_to_tick;
2486	}	2869	}
2487		2870
2488	while (my ($face, $info) = each %$faces) {	2871	while (my ($face, $info) = each %$faces) {
2489	next unless $info->{smooth};	2872	next unless $info->{smooth};
2490	my $idx = cf::face::find $face	2873	my $idx = cf::face::find $face
2491	or next;	2874	or next;
2492	if (my $smooth = cf::face::find $info->{smooth}) {	2875	if (my $smooth = cf::face::find $info->{smooth}) {
		2876	cf::face::set_smooth $idx, $smooth;
2493	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2877	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2494	} else {	2878	} else {
2495	warn "smooth face '$info->{smooth}' not found for face '$face'";	2879	warn "smooth face '$info->{smooth}' not found for face '$face'";
2496	}	2880	}
2497	Coro::cede;	2881
		2882	cf::cede_to_tick;
2498	}	2883	}
2499	}	2884	}
2500		2885
2501	{	2886	{
2502	my $anims = $facedata->{animinfo};	2887	my $anims = $facedata->{animinfo};
2503		2888
2504	while (my ($anim, $info) = each %$anims) {	2889	while (my ($anim, $info) = each %$anims) {
2505	cf::anim::set $anim, $info->{frames}, $info->{facings};	2890	cf::anim::set $anim, $info->{frames}, $info->{facings};
2506	Coro::cede;	2891	cf::cede_to_tick;
2507	}	2892	}
2508		2893
2509	cf::anim::invalidate_all; # d'oh	2894	cf::anim::invalidate_all; # d'oh
2510	}	2895	}
2511		2896
		2897	{
		2898	# TODO: for gcfclient pleasure, we should give resources
		2899	# that gcfclient doesn't grok a >10000 face index.
		2900	my $res = $facedata->{resource};
		2901
		2902	my $soundconf = delete $res->{"res/sound.conf"};
		2903
		2904	while (my ($name, $info) = each %$res) {
		2905	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2906	my $data;
		2907
		2908	if ($info->{type} & 1) {
		2909	# prepend meta info
		2910
		2911	my $meta = $enc->encode ({
		2912	name => $name,
		2913	%{ $info->{meta} || {} },
		2914	});
		2915
		2916	$data = pack "(w/a*)*", $meta, $info->{data};
		2917	} else {
		2918	$data = $info->{data};
		2919	}
		2920
		2921	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2922	cf::face::set_type $idx, $info->{type};
		2923
		2924	cf::cede_to_tick;
		2925	}
		2926
		2927	if ($soundconf) {
		2928	$soundconf = $enc->decode (delete $soundconf->{data});
		2929
		2930	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2931	my $sound = $soundconf->{compat}[$_]
		2932	or next;
		2933
		2934	my $face = cf::face::find "sound/$sound->[1]";
		2935	cf::sound::set $sound->[0] => $face;
		2936	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2937	}
		2938
		2939	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2940	my $face = cf::face::find "sound/$v";
		2941	cf::sound::set $k => $face;
		2942	}
		2943	}
		2944	}
		2945
2512	1	2946	1
2513	}	2947	}
		2948
		2949	register_exticmd fx_want => sub {
		2950	my ($ns, $want) = @_;
		2951
		2952	while (my ($k, $v) = each %$want) {
		2953	$ns->fx_want ($k, $v);
		2954	}
		2955	};
2514		2956
2515	sub reload_regions {	2957	sub reload_regions {
2516	load_resource_file "$MAPDIR/regions"	2958	load_resource_file "$MAPDIR/regions"
2517	or die "unable to load regions file\n";	2959	or die "unable to load regions file\n";
		2960
		2961	for (cf::region::list) {
		2962	$_->{match} = qr/$_->{match}/
		2963	if exists $_->{match};
		2964	}
2518	}	2965	}
2519		2966
2520	sub reload_facedata {	2967	sub reload_facedata {
2521	load_facedata "$DATADIR/facedata"	2968	load_facedata "$DATADIR/facedata"
2522	or die "unable to load facedata\n";	2969	or die "unable to load facedata\n";
2523	}	2970	}
2524		2971
2525	sub reload_archetypes {	2972	sub reload_archetypes {
2526	load_resource_file "$DATADIR/archetypes"	2973	load_resource_file "$DATADIR/archetypes"
2527	or die "unable to load archetypes\n";	2974	or die "unable to load archetypes\n";
		2975	#d# NEED to laod twice to resolve forward references
		2976	# this really needs to be done in an extra post-pass
		2977	# (which needs to be synchronous, so solve it differently)
		2978	load_resource_file "$DATADIR/archetypes"
		2979	or die "unable to load archetypes\n";
2528	}	2980	}
2529		2981
2530	sub reload_treasures {	2982	sub reload_treasures {
2531	load_resource_file "$DATADIR/treasures"	2983	load_resource_file "$DATADIR/treasures"
2532	or die "unable to load treasurelists\n";	2984	or die "unable to load treasurelists\n";
…		…
2535	sub reload_resources {	2987	sub reload_resources {
2536	warn "reloading resource files...\n";	2988	warn "reloading resource files...\n";
2537		2989
2538	reload_regions;	2990	reload_regions;
2539	reload_facedata;	2991	reload_facedata;
		2992	#reload_archetypes;#d#
2540	reload_archetypes;	2993	reload_archetypes;
2541	reload_treasures;	2994	reload_treasures;
2542		2995
2543	warn "finished reloading resource files\n";	2996	warn "finished reloading resource files\n";
2544	}	2997	}
2545		2998
2546	sub init {	2999	sub init {
2547	reload_resources;	3000	reload_resources;
2548	}	3001	}
2549		3002
2550	sub cfg_load {	3003	sub reload_config {
2551	open my $fh, "<:utf8", "$CONFDIR/config"	3004	open my $fh, "<:utf8", "$CONFDIR/config"
2552	or return;	3005	or return;
2553		3006
2554	local $/;	3007	local $/;
2555	*CFG = YAML::Syck::Load <$fh>;	3008	*CFG = YAML::Syck::Load <$fh>;
…		…
2575	(async {	3028	(async {
2576	Event::one_event;	3029	Event::one_event;
2577	})->prio (Coro::PRIO_MAX);	3030	})->prio (Coro::PRIO_MAX);
2578	};	3031	};
2579		3032
2580	cfg_load;	3033	reload_config;
2581	db_init;	3034	db_init;
2582	load_extensions;	3035	load_extensions;
2583		3036
2584	$TICK_WATCHER->start;	3037	$TICK_WATCHER->start;
2585	Event::loop;	3038	Event::loop;
…		…
2601	},	3054	},
2602	);	3055	);
2603	}	3056	}
2604	}	3057	}
2605		3058
		3059	sub write_runtime {
		3060	my $runtime = "$LOCALDIR/runtime";
		3061
		3062	# first touch the runtime file to show we are still running:
		3063	# the fsync below can take a very very long time.
		3064
		3065	IO::AIO::aio_utime $runtime, undef, undef;
		3066
		3067	my $guard = cf::lock_acquire "write_runtime";
		3068
		3069	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3070	or return;
		3071
		3072	my $value = $cf::RUNTIME + 90 + 10;
		3073	# 10 is the runtime save interval, for a monotonic clock
		3074	# 60 allows for the watchdog to kill the server.
		3075
		3076	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3077	and return;
		3078
		3079	# always fsync - this file is important
		3080	aio_fsync $fh
		3081	and return;
		3082
		3083	# touch it again to show we are up-to-date
		3084	aio_utime $fh, undef, undef;
		3085
		3086	close $fh
		3087	or return;
		3088
		3089	aio_rename "$runtime~", $runtime
		3090	and return;
		3091
		3092	warn "runtime file written.\n";
		3093
		3094	1
		3095	}
		3096
2606	sub emergency_save() {	3097	sub emergency_save() {
2607	my $freeze_guard = cf::freeze_mainloop;	3098	my $freeze_guard = cf::freeze_mainloop;
2608		3099
2609	warn "enter emergency perl save\n";	3100	warn "enter emergency perl save\n";
2610		3101
…		…
2685	%EXT_CORO = ();	3176	%EXT_CORO = ();
2686		3177
2687	warn "removing commands";	3178	warn "removing commands";
2688	%COMMAND = ();	3179	%COMMAND = ();
2689		3180
2690	warn "removing ext commands";	3181	warn "removing ext/exti commands";
2691	%EXTCMD = ();	3182	%EXTCMD = ();
		3183	%EXTICMD = ();
2692		3184
2693	warn "unloading/nuking all extensions";	3185	warn "unloading/nuking all extensions";
2694	for my $pkg (@EXTS) {	3186	for my $pkg (@EXTS) {
2695	warn "... unloading $pkg";	3187	warn "... unloading $pkg";
2696		3188
…		…
2739	warn "reloading cf.pm";	3231	warn "reloading cf.pm";
2740	require cf;	3232	require cf;
2741	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3233	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2742		3234
2743	warn "loading config and database again";	3235	warn "loading config and database again";
2744	cf::cfg_load;	3236	cf::reload_config;
2745		3237
2746	warn "loading extensions";	3238	warn "loading extensions";
2747	cf::load_extensions;	3239	cf::load_extensions;
2748		3240
2749	warn "reattaching attachments to objects/players";	3241	warn "reattaching attachments to objects/players";
…		…
2814	my $signal = new Coro::Signal;	3306	my $signal = new Coro::Signal;
2815	push @WAIT_FOR_TICK_BEGIN, $signal;	3307	push @WAIT_FOR_TICK_BEGIN, $signal;
2816	$signal->wait;	3308	$signal->wait;
2817	}	3309	}
2818		3310
		3311	my $min = 1e6;#d#
		3312	my $avg = 10;
2819	$TICK_WATCHER = Event->timer (	3313	$TICK_WATCHER = Event->timer (
2820	reentrant => 0,	3314	reentrant => 0,
2821	parked => 1,	3315	parked => 1,
2822	prio => 0,	3316	prio => 0,
2823	at => $NEXT_TICK || $TICK,	3317	at => $NEXT_TICK || $TICK,
…		…
2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3321	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2828	unless ++$bug_warning > 10;	3322	unless ++$bug_warning > 10;
2829	return;	3323	return;
2830	}	3324	}
2831		3325
2832	$NOW = Event::time;	3326	$NOW = $tick_start = Event::time;
2833		3327
2834	cf::server_tick; # one server iteration	3328	cf::server_tick; # one server iteration
		3329
		3330	0 && sync_job {#d#
		3331	for(1..10) {
		3332	my $t = Event::time;
		3333	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3334	or die;
		3335
		3336	$map->width (50);
		3337	$map->height (50);
		3338	$map->alloc;
		3339	$map->_load_objects ("/tmp/x.map", 1);
		3340	my $t = Event::time - $t;
		3341
		3342	#next unless $t < 0.0013;#d#
		3343	if ($t < $min) {
		3344	$min = $t;
		3345	}
		3346	$avg = $avg * 0.99 + $t * 0.01;
		3347	}
		3348	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3349	exit 0;
		3350	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3351	};
2835		3352
2836	$RUNTIME += $TICK;	3353	$RUNTIME += $TICK;
2837	$NEXT_TICK += $TICK;	3354	$NEXT_TICK += $TICK;
2838		3355
2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3356	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2845	}	3362	}
2846		3363
2847	# my $AFTER = Event::time;	3364	# my $AFTER = Event::time;
2848	# warn $AFTER - $NOW;#d#	3365	# warn $AFTER - $NOW;#d#
2849		3366
		3367	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3368	$sig->send;
		3369	}
		3370	while (my $sig = shift @WAIT_FOR_TICK) {
		3371	$sig->send;
		3372	}
		3373
		3374	$NOW = Event::time;
		3375
2850	# if we are delayed by four ticks or more, skip them all	3376	# if we are delayed by four ticks or more, skip them all
2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3377	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2852		3378
2853	$TICK_WATCHER->at ($NEXT_TICK);	3379	$TICK_WATCHER->at ($NEXT_TICK);
2854	$TICK_WATCHER->start;	3380	$TICK_WATCHER->start;
2855		3381
2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3382	$LOAD = ($NOW - $tick_start) / $TICK;
2857	$sig->send;	3383	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2858	}
2859	while (my $sig = shift @WAIT_FOR_TICK) {
2860	$sig->send;
2861	}
2862		3384
2863	_post_tick;	3385	_post_tick;
		3386
		3387
2864	},	3388	},
2865	);	3389	);
2866		3390
2867	{	3391	{
2868	BDB::max_poll_time $TICK * 0.1;	3392	BDB::max_poll_time $TICK * 0.1;

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