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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.253 by root, Wed Apr 18 17:32:07 2007 UTC vs.
Revision 1.335 by root, Mon Aug 20 22:21:48 2007 UTC

…		…
10	use Event;	10	use Event;
11	use Opcode;	11	use Opcode;
12	use Safe;	12	use Safe;
13	use Safe::Hole;	13	use Safe::Hole;
14		14
15	use Coro 3.61 ();	15	use Coro 3.64 ();
16	use Coro::State;	16	use Coro::State;
17	use Coro::Handle;	17	use Coro::Handle;
18	use Coro::Event;	18	use Coro::Event;
19	use Coro::Timer;	19	use Coro::Timer;
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
		24	use Coro::Util ();
24		25
		26	use JSON::XS 1.4 ();
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
…		…
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.
154		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.
		178
155	=back	179	=back
156		180
157	=cut	181	=cut
158		182
159	BEGIN {	183	BEGIN {
…		…
161	my $msg = join "", @_;	185	my $msg = join "", @_;
162		186
163	$msg .= "\n"	187	$msg .= "\n"
164	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
165		189
166	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		191
168	utf8::encode $msg;	192	utf8::encode $msg;
169	LOG llevError, $msg;	193	LOG llevError, $msg;
170	};	194	};
171	}	195	}
…		…
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	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	476	=cut
377	or return;
378		477
379	my $value = $cf::RUNTIME + 90 + 10;	478	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	479	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		480
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	481	# we seemingly have to make a local copy of the whole thing,
384	and return;	482	# otherwise perl prematurely frees the stuff :/
		483	# TODO: investigate and fix (liekly this will be rather laborious)
385		484
386	# always fsync - this file is important	485	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	486	reset_signals;
388	and return;	487	&$cb
		488	}, @args;
389		489
390	close $fh	490	wantarray ? @res : $res[-1]
391	or return;	491	}
392		492
393	aio_rename "$runtime~", $runtime	493	=item $value = cf::db_get $family => $key
394	and return;
395		494
		495	Returns a single value from the environment database.
		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	};
396	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"
397	}	607	}
398		608
399	=item cf::datalog type => key => value, ...	609	=item cf::datalog type => key => value, ...
400		610
401	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.
…		…
419	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")
420	to it. All such attachable objects support the following methods.	630	to it. All such attachable objects support the following methods.
421		631
422	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>
423	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
424	crossfire+).	634	Crossfire TRT).
425		635
426	=over 4	636	=over 4
427		637
428	=item $attachable->attach ($attachment, key => $value...)	638	=item $attachable->attach ($attachment, key => $value...)
429		639
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	802	$registry = $CB_TYPE[$object_type] ||= [];
593		803
594	} elsif ($type eq "subtype") {	804	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	805	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	806	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	807	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		808
599	} elsif ($type eq "package") {	809	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	810	my $pkg = shift @arg;
601		811
602	while (my ($name, $id) = each %cb_id) {	812	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	841	_attach $registry, $klass, @attach;
632	}	842	}
633		843
634	$obj->{$name} = \%arg;	844	$obj->{$name} = \%arg;
635	} else {	845	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	846	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	847	}
638		848
639	$obj->{_attachment}{$name} = undef;	849	$obj->{_attachment}{$name} = undef;
640	}	850	}
641		851
…		…
643	if (ref $_[0]) {	853	if (ref $_[0]) {
644	_object_attach @_;	854	_object_attach @_;
645	} else {	855	} else {
646	_attach shift->_attach_registry, @_;	856	_attach shift->_attach_registry, @_;
647	}	857	}
		858	_recalc_want;
648	};	859	};
649		860
650	# all those should be optimised	861	# all those should be optimised
651	sub cf::attachable::detach {	862	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	863	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	866	delete $obj->{_attachment}{$name};
656	reattach ($obj);	867	reattach ($obj);
657	} else {	868	} else {
658	Carp::croak "cannot, currently, detach class attachments";	869	Carp::croak "cannot, currently, detach class attachments";
659	}	870	}
		871	_recalc_want;
660	};	872	};
661		873
662	sub cf::attachable::attached {	874	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	875	my ($obj, $name) = @_;
664		876
…		…
679	";	891	";
680	die if $@;	892	die if $@;
681	}	893	}
682		894
683	our $override;	895	our $override;
684	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?
685		897
686	sub override {	898	sub override {
687	$override = 1;	899	$override = 1;
688	@invoke_results = ();	900	@INVOKE_RESULTS = (@_);
689	}	901	}
690		902
691	sub do_invoke {	903	sub do_invoke {
692	my $event = shift;	904	my $event = shift;
693	my $callbacks = shift;	905	my $callbacks = shift;
694		906
695	@invoke_results = ();	907	@INVOKE_RESULTS = ();
696		908
697	local $override;	909	local $override;
698		910
699	for (@$callbacks) {	911	for (@$callbacks) {
700	eval { &{$_->[1]} };	912	eval { &{$_->[1]} };
…		…
717		929
718	Generate an object-specific event with the given arguments.	930	Generate an object-specific event with the given arguments.
719		931
720	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
721	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
722	results (if you must, access C<@cf::invoke_results> directly).	934	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		935
724	=back	936	=back
725		937
726	=cut	938	=cut
727		939
728	#############################################################################	940	#############################################################################
729	# 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	}
730		953
731	sub reattach {	954	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	955	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	956	my ($obj) = @_;
734		957
…		…
837	or return;	1060	or return;
838	$av = eval { (Storable::thaw $av)->{objs} };	1061	$av = eval { (Storable::thaw $av)->{objs} };
839	}	1062	}
840		1063
841	warn sprintf "loading %s (%d)\n",	1064	warn sprintf "loading %s (%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1065	$filename, length $data, scalar @{$av || []};
843	return ($data, $av);	1066	return ($data, $av);
844	}	1067	}
		1068
		1069	=head2 COMMAND CALLBACKS
		1070
		1071	=over 4
		1072
		1073	=cut
845		1074
846	#############################################################################	1075	#############################################################################
847	# command handling &c	1076	# command handling &c
848		1077
849	=item cf::register_command $name => \&callback($ob,$args);	1078	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1091	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1092	}
864		1093
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1094	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1095
867	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.
868		1101
869	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
870	called.	1103	called.
871		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
872	=cut	1116	=cut
873		1117
874	sub register_extcmd {	1118	sub register_extcmd {
875	my ($name, $cb) = @_;	1119	my ($name, $cb) = @_;
876		1120
877	$EXTCMD{$name} = $cb;	1121	$EXTCMD{$name} = $cb;
		1122	}
		1123
		1124	sub register_exticmd {
		1125	my ($name, $cb) = @_;
		1126
		1127	$EXTICMD{$name} = $cb;
878	}	1128	}
879		1129
880	cf::player->attach (	1130	cf::player->attach (
881	on_command => sub {	1131	on_command => sub {
882	my ($pl, $name, $params) = @_;	1132	my ($pl, $name, $params) = @_;
…		…
891	cf::override;	1141	cf::override;
892	},	1142	},
893	on_extcmd => sub {	1143	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1144	my ($pl, $buf) = @_;
895		1145
896	my $msg = eval { from_json $buf };	1146	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1147
898	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
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1154	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1155	my @reply = $cb->($pl, @payload);
		1156
901	$pl->ext_reply ($msg->{msgid}, %reply);	1157	$pl->ext_reply ($reply, @reply)
902	}	1158	if $reply;
903	}	1159	}
904	} else {	1160	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1161	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1162	}
907		1163
908	cf::override;	1164	cf::override;
909	},	1165	},
910	);	1166	);
911		1167
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 {	1168	sub load_extensions {
		1169	cf::sync_job {
		1170	my %todo;
		1171
947	for my $ext (<$LIBDIR/*.ext>) {	1172	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1173	next unless -r $path;
949	eval {	1174
950	load_extension $ext;	1175	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1176	my $base = $1;
		1177	my $pkg = $1;
		1178	$pkg =~ s/[^[:word:]]/_/g;
		1179	$pkg = "ext::$pkg";
		1180
		1181	open my $fh, "<:utf8", $path
		1182	or die "$path: $!";
		1183
		1184	my $source = do { local $/; <$fh> };
		1185
		1186	my %ext = (
		1187	path => $path,
		1188	base => $base,
		1189	pkg => $pkg,
		1190	);
		1191
		1192	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1193	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1194
		1195	$ext{source} =
		1196	"package $pkg; use strict; use utf8;\n"
		1197	. "#line 1 \"$path\"\n{\n"
		1198	. $source
		1199	. "\n};\n1";
		1200
		1201	$todo{$base} = \%ext;
		1202	}
		1203
		1204	my %done;
		1205	while (%todo) {
		1206	my $progress;
		1207
		1208	while (my ($k, $v) = each %todo) {
		1209	for (split /,\s*/, $v->{meta}{depends}) {
		1210	goto skip
		1211	unless exists $done{$_};
		1212	}
		1213
		1214	warn "... loading '$k' into '$v->{pkg}'\n";
		1215
		1216	unless (eval $v->{source}) {
		1217	my $msg = $@ ? "$v->{path}: $@\n"
		1218	: "$v->{base}: extension inactive.\n";
		1219
		1220	if (exists $v->{meta}{mandatory}) {
		1221	warn $msg;
		1222	warn "mandatory extension failed to load, exiting.\n";
		1223	exit 1;
		1224	}
		1225
		1226	warn $msg;
		1227	}
		1228
		1229	$done{$k} = delete $todo{$k};
		1230	push @EXTS, $v->{pkg};
		1231	$progress = 1;
951	1	1232	}
952	} or warn "$ext not loaded: $@";	1233
		1234	skip:
		1235	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1236	unless $progress;
		1237	}
953	}	1238	};
954	}	1239	}
955		1240
956	#############################################################################	1241	#############################################################################
		1242
		1243	=back
957		1244
958	=head2 CORE EXTENSIONS	1245	=head2 CORE EXTENSIONS
959		1246
960	Functions and methods that extend core crossfire objects.	1247	Functions and methods that extend core crossfire objects.
961		1248
…		…
1048	$cf::PLAYER{$login} = $self;	1335	$cf::PLAYER{$login} = $self;
1049		1336
1050	$self	1337	$self
1051	}	1338	}
1052		1339
		1340	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1341
		1342	=cut
		1343
		1344	sub send_msg {
		1345	my $ns = shift->ns
		1346	or return;
		1347	$ns->send_msg (@_);
		1348	}
		1349
1053	=item $pl->quit_character	1350	=item $pl->quit_character
1054		1351
1055	Nukes the player without looking back. If logged in, the connection will	1352	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1353	be destroyed. May block for a long time.
1057		1354
…		…
1149	}	1446	}
1150		1447
1151	\@paths	1448	\@paths
1152	}	1449	}
1153		1450
		1451	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1452
		1453	Expand crossfire pod fragments into protocol xml.
		1454
		1455	=cut
		1456
		1457	sub expand_cfpod {
		1458	((my $self), (local $_)) = @_;
		1459
		1460	# escape & and <
		1461	s/&/&amp;/g;
		1462	s/(?<![BIUGH])</&lt;/g;
		1463
		1464	# this is buggy, it needs to properly take care of nested <'s
		1465
		1466	1 while
		1467	# replace B<>, I<>, U<> etc.
		1468	s/B<([^\>]*)>/<b>$1<\/b>/
		1469	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1470	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1471	# replace G<male|female> tags
		1472	|| s{G<([^>|]*)\|([^>]*)>}{
		1473	$self->gender ? $2 : $1
		1474	}ge
		1475	# replace H<hint text>
		1476	|| s{H<([^\>]*)>}
		1477	{
		1478	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1479	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1480	"")
		1481	[$self->{hintmode}]
		1482	}ge;
		1483
		1484	# create single paragraphs (very hackish)
		1485	s/(?<=\S)\n(?=\w)/ /g;
		1486
		1487	# compress some whitespace
		1488	s/\s+\n/\n/g; # ws line-ends
		1489	s/\n\n+/\n/g; # double lines
		1490	s/^\n+//; # beginning lines
		1491	s/\n+$//; # ending lines
		1492
		1493	$_
		1494	}
		1495
		1496	sub hintmode {
		1497	$_[0]{hintmode} = $_[1] if @_ > 1;
		1498	$_[0]{hintmode}
		1499	}
		1500
1154	=item $player->ext_reply ($msgid, %msg)	1501	=item $player->ext_reply ($msgid, @msg)
1155		1502
1156	Sends an ext reply to the player.	1503	Sends an ext reply to the player.
1157		1504
1158	=cut	1505	=cut
1159		1506
1160	sub ext_reply($$%) {	1507	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1508	my ($self, $id, @msg) = @_;
1162		1509
1163	$msg{msgid} = $id;	1510	if ($self->ns->extcmd == 2) {
1164		1511	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
1165	$self->send ("ext " . cf::to_json \%msg);	1512	} elsif ($self->ns->extcmd == 1) {
		1513	#TODO: version 1, remove
		1514	unshift @msg, msgtype => "reply", msgid => $id;
		1515	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1516	}
1166	}	1517	}
1167		1518
1168	=item $player->ext_event ($type, %msg)	1519	=item $player->ext_msg ($type, @msg)
1169		1520
1170	Sends an ext event to the client.	1521	Sends an ext event to the client.
1171		1522
1172	=cut	1523	=cut
1173		1524
1174	sub ext_event($$%) {	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 ($self) = @_;
…		…
1352		1701
1353	# the original (read-only) location	1702	# the original (read-only) location
1354	sub load_path {	1703	sub load_path {
1355	my ($self) = @_;	1704	my ($self) = @_;
1356		1705
1357	"$MAPDIR($self->{path}"	1706	"$MAPDIR/$self->{path}.map"
1358	}	1707	}
1359		1708
1360	# the temporary/swap location	1709	# the temporary/swap location
1361	sub save_path {	1710	sub save_path {
1362	my ($self) = @_;	1711	my ($self) = @_;
1363		1712
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1713	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1365	"$TMPDIR/$path"	1714	"$TMPDIR/$path.map"
1366	}	1715	}
1367		1716
1368	# the unique path, undef == no special unique path	1717	# the unique path, undef == no special unique path
1369	sub uniq_path {	1718	sub uniq_path {
1370	my ($self) = @_;	1719	my ($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 $path;
…		…
1490	my ($self) = @_;	1850	my ($self) = @_;
1491		1851
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};
		1855
		1856	{
1495	my $guard = cf::lock_acquire "map_load:$path";	1857	my $guard = cf::lock_acquire "map_load:$path";
1496		1858
1497	return if $self->in_memory != cf::MAP_SWAPPED;	1859	return if $self->in_memory != cf::MAP_SWAPPED;
1498		1860
1499	$self->in_memory (cf::MAP_LOADING);	1861	$self->in_memory (cf::MAP_LOADING);
1500		1862
1501	$self->alloc;	1863	$self->alloc;
1502		1864
1503	$self->pre_load;	1865	$self->pre_load;
1504	Coro::cede;
1505
1506	$self->_load_objects ($self->{load_path}, 1)
1507	or return;
1508
1509	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1510	if delete $self->{load_original};
1511
1512	if (my $uniq = $self->uniq_path) {
1513	utf8::encode $uniq;
1514	if (aio_open $uniq, O_RDONLY, 0) {
1515	$self->clear_unique_items;
1516	$self->_load_objects ($uniq, 0);
1517	}
1518	}
1519
1520	Coro::cede;
1521	# now do the right thing for maps
1522	$self->link_multipart_objects;
1523	Coro::cede;
1524
1525	unless ($self->{deny_activate}) {
1526	$self->decay_objects;
1527	$self->fix_auto_apply;
1528	$self->update_buttons;
1529	Coro::cede;	1866	Coro::cede;
1530	$self->set_darkness_map;	1867
		1868	$self->_load_objects ($self->{load_path}, 1)
		1869	or return;
		1870
		1871	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1872	if delete $self->{load_original};
		1873
		1874	if (my $uniq = $self->uniq_path) {
		1875	utf8::encode $uniq;
		1876	if (aio_open $uniq, O_RDONLY, 0) {
		1877	$self->clear_unique_items;
		1878	$self->_load_objects ($uniq, 0);
		1879	}
		1880	}
		1881
		1882	Coro::cede;
		1883	# now do the right thing for maps
		1884	$self->link_multipart_objects;
1531	$self->difficulty ($self->estimate_difficulty)	1885	$self->difficulty ($self->estimate_difficulty)
1532	unless $self->difficulty;	1886	unless $self->difficulty;
1533	Coro::cede;	1887	Coro::cede;
		1888
		1889	unless ($self->{deny_activate}) {
		1890	$self->decay_objects;
		1891	$self->fix_auto_apply;
		1892	$self->update_buttons;
		1893	Coro::cede;
		1894	$self->set_darkness_map;
		1895	Coro::cede;
1534	$self->activate;	1896	$self->activate;
1535	Coro::cede;	1897	}
		1898
		1899	$self->{last_save} = $cf::RUNTIME;
		1900	$self->last_access ($cf::RUNTIME);
		1901
		1902	$self->in_memory (cf::MAP_IN_MEMORY);
1536	}	1903	}
1537		1904
1538	$self->post_load;	1905	$self->post_load;
1539	Coro::cede;
1540
1541	$self->in_memory (cf::MAP_IN_MEMORY);
1542	}	1906	}
1543		1907
1544	sub customise_for {	1908	sub customise_for {
1545	my ($self, $ob) = @_;	1909	my ($self, $ob) = @_;
1546		1910
1547	return find "~" . $ob->name . "/" . $self->{path}	1911	return find "~" . $ob->name . "/" . $self->{path}
1548	if $self->per_player;	1912	if $self->per_player;
1549		1913
		1914	# return find "?party/" . $ob->name . "/" . $self->{path}
		1915	# if $self->per_party;
		1916
1550	$self	1917	$self
1551	}	1918	}
1552		1919
1553	# find and load all maps in the 3x3 area around a map	1920	# find and load all maps in the 3x3 area around a map
1554	sub load_diag {	1921	sub load_neighbours {
1555	my ($map) = @_;	1922	my ($map) = @_;
1556		1923
1557	my @diag; # diagonal neighbours	1924	my @neigh; # diagonal neighbours
1558		1925
1559	for (0 .. 3) {	1926	for (0 .. 3) {
1560	my $neigh = $map->tile_path ($_)	1927	my $neigh = $map->tile_path ($_)
1561	or next;	1928	or next;
1562	$neigh = find $neigh, $map	1929	$neigh = find $neigh, $map
1563	or next;	1930	or next;
1564	$neigh->load;	1931	$neigh->load;
1565		1932
		1933	push @neigh,
1566	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1934	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1567	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1935	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1568	}	1936	}
1569		1937
1570	for (@diag) {	1938	for (grep defined $_->[0], @neigh) {
		1939	my ($path, $origin) = @$_;
1571	my $neigh = find @$_	1940	my $neigh = find $path, $origin
1572	or next;	1941	or next;
1573	$neigh->load;	1942	$neigh->load;
1574	}	1943	}
1575	}	1944	}
1576		1945
…		…
1600		1969
1601	undef $MAP_PREFETCH{$path};	1970	undef $MAP_PREFETCH{$path};
1602	$MAP_PREFETCHER ||= cf::async {	1971	$MAP_PREFETCHER ||= cf::async {
1603	while (%MAP_PREFETCH) {	1972	while (%MAP_PREFETCH) {
1604	for my $path (keys %MAP_PREFETCH) {	1973	for my $path (keys %MAP_PREFETCH) {
1605	my $map = find $path	1974	if (my $map = find $path) {
1606	or next;
1607	$map->load;	1975	$map->load;
		1976	}
1608		1977
1609	delete $MAP_PREFETCH{$path};	1978	delete $MAP_PREFETCH{$path};
1610	}	1979	}
1611	}	1980	}
1612	undef $MAP_PREFETCHER;	1981	undef $MAP_PREFETCHER;
…		…
1664		2033
1665	sub reset_at {	2034	sub reset_at {
1666	my ($self) = @_;	2035	my ($self) = @_;
1667		2036
1668	# TODO: safety, remove and allow resettable per-player maps	2037	# TODO: safety, remove and allow resettable per-player maps
1669	return 1e99 if $self->isa ("ext::map_per_player");#d#
1670	return 1e99 if $self->{deny_reset};	2038	return 1e99 if $self->{deny_reset};
1671		2039
1672	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2040	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1673	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2041	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1674		2042
…		…
1685	my ($self) = @_;	2053	my ($self) = @_;
1686		2054
1687	my $lock = cf::lock_acquire "map_data:$self->{path}";	2055	my $lock = cf::lock_acquire "map_data:$self->{path}";
1688		2056
1689	return if $self->players;	2057	return if $self->players;
1690	return if $self->isa ("ext::map_per_player");#d#
1691		2058
1692	warn "resetting map ", $self->path;#d#	2059	warn "resetting map ", $self->path;
1693		2060
1694	$self->in_memory (cf::MAP_SWAPPED);	2061	$self->in_memory (cf::MAP_SWAPPED);
1695		2062
1696	# need to save uniques path	2063	# need to save uniques path
1697	unless ($self->{deny_save}) {	2064	unless ($self->{deny_save}) {
…		…
1729	$cf::MAP{$self->path} = $self;	2096	$cf::MAP{$self->path} = $self;
1730		2097
1731	$self->reset; # polite request, might not happen	2098	$self->reset; # polite request, might not happen
1732	}	2099	}
1733		2100
		2101	=item $maps = cf::map::tmp_maps
		2102
		2103	Returns an arrayref with all map paths of currently instantiated and saved
		2104	maps. May block.
		2105
		2106	=cut
		2107
		2108	sub tmp_maps() {
		2109	[
		2110	map {
		2111	utf8::decode $_;
		2112	/\.map$/
		2113	? normalise $_
		2114	: ()
		2115	} @{ aio_readdir $TMPDIR or [] }
		2116	]
		2117	}
		2118
		2119	=item $maps = cf::map::random_maps
		2120
		2121	Returns an arrayref with all map paths of currently instantiated and saved
		2122	random maps. May block.
		2123
		2124	=cut
		2125
		2126	sub random_maps() {
		2127	[
		2128	map {
		2129	utf8::decode $_;
		2130	/\.map$/
		2131	? normalise "?random/$_"
		2132	: ()
		2133	} @{ aio_readdir $RANDOMDIR or [] }
		2134	]
		2135	}
		2136
1734	=item cf::map::unique_maps	2137	=item cf::map::unique_maps
1735		2138
1736	Returns an arrayref of paths of all shared maps that have	2139	Returns an arrayref of paths of all shared maps that have
1737	instantiated unique items. May block.	2140	instantiated unique items. May block.
1738		2141
1739	=cut	2142	=cut
1740		2143
1741	sub unique_maps() {	2144	sub unique_maps() {
1742	my $files = aio_readdir $UNIQUEDIR	2145	[
1743	or return;	2146	map {
1744
1745	my @paths;
1746
1747	for (@$files) {
1748	utf8::decode $_;	2147	utf8::decode $_;
1749	next if /\.pst$/;	2148	/\.map$/
1750	next unless /^$PATH_SEP/o;	2149	? normalise $_
1751		2150	: ()
1752	push @paths, cf::map::normalise $_;	2151	} @{ aio_readdir $UNIQUEDIR or [] }
1753	}	2152	]
1754
1755	\@paths
1756	}	2153	}
1757		2154
1758	package cf;	2155	package cf;
1759		2156
1760	=back	2157	=back
…		…
1806		2203
1807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2204	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1808		2205
1809	if ($self->{record_replies}) {	2206	if ($self->{record_replies}) {
1810	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2207	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2208
1811	} else {	2209	} else {
		2210	my $pl = $self->contr;
		2211
		2212	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2213	my $dialog = $pl->{npc_dialog};
		2214	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2215
		2216	} else {
1812	$msg = $npc->name . " says: $msg" if $npc;	2217	$msg = $npc->name . " says: $msg" if $npc;
1813	$self->message ($msg, $flags);	2218	$self->message ($msg, $flags);
		2219	}
1814	}	2220	}
		2221	}
		2222
		2223	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2224
		2225	=cut
		2226
		2227	sub cf::object::send_msg {
		2228	my $pl = shift->contr
		2229	or return;
		2230	$pl->send_msg (@_);
1815	}	2231	}
1816		2232
1817	=item $player_object->may ("access")	2233	=item $player_object->may ("access")
1818		2234
1819	Returns wether the given player is authorized to access resource "access"	2235	Returns wether the given player is authorized to access resource "access"
…		…
1866	$self->deactivate_recursive;	2282	$self->deactivate_recursive;
1867		2283
1868	return if UNIVERSAL::isa $self->map, "ext::map_link";	2284	return if UNIVERSAL::isa $self->map, "ext::map_link";
1869		2285
1870	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2286	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1871	if $self->map;	2287	if $self->map && $self->map->{path} ne "{link}";
1872		2288
1873	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2289	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1874	}	2290	}
1875		2291
1876	sub cf::object::player::leave_link {	2292	sub cf::object::player::leave_link {
1877	my ($self, $map, $x, $y) = @_;	2293	my ($self, $map, $x, $y) = @_;
		2294
		2295	return unless $self->contr->active;
1878		2296
1879	my $link_pos = delete $self->{_link_pos};	2297	my $link_pos = delete $self->{_link_pos};
1880		2298
1881	unless ($map) {	2299	unless ($map) {
1882	# restore original map position	2300	# restore original map position
…		…
1896	# use -1 or undef as default coordinates, not 0, 0	2314	# use -1 or undef as default coordinates, not 0, 0
1897	($x, $y) = ($map->enter_x, $map->enter_y)	2315	($x, $y) = ($map->enter_x, $map->enter_y)
1898	if $x <=0 && $y <= 0;	2316	if $x <=0 && $y <= 0;
1899		2317
1900	$map->load;	2318	$map->load;
1901	$map->load_diag;	2319	$map->load_neighbours;
1902		2320
1903	return unless $self->contr->active;	2321	return unless $self->contr->active;
1904	$self->activate_recursive;	2322	$self->activate_recursive;
1905		2323
1906	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2324	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1907	$self->enter_map ($map, $x, $y);	2325	$self->enter_map ($map, $x, $y);
1908	}	2326	}
1909		2327
1910	cf::player->attach (	2328	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1911	on_logout => sub {
1912	my ($pl) = @_;
1913		2329
1914	# abort map switching before logout	2330	Moves the player to the given map-path and coordinates by first freezing
1915	if ($pl->ob->{_link_pos}) {	2331	her, loading and preparing them map, calling the provided $check callback
1916	cf::sync_job {	2332	that has to return the map if sucecssful, and then unfreezes the player on
1917	$pl->ob->leave_link	2333	the new (success) or old (failed) map position. In either case, $done will
1918	};	2334	be called at the end of this process.
1919	}
1920	},
1921	on_login => sub {
1922	my ($pl) = @_;
1923		2335
1924	# try to abort aborted map switching on player login :)
1925	# should happen only on crashes
1926	if ($pl->ob->{_link_pos}) {
1927	$pl->ob->enter_link;
1928	(async {
1929	$pl->ob->reply (undef,
1930	"There was an internal problem at your last logout, "
1931	. "the server will try to bring you to your intended destination in a second.",
1932	cf::NDI_RED);
1933	# we need this sleep as the login has a concurrent enter_exit running
1934	# and this sleep increases chances of the player not ending up in scorn
1935	Coro::Timer::sleep 1;
1936	$pl->ob->leave_link;
1937	})->prio (2);
1938	}
1939	},
1940	);
1941
1942	=item $player_object->goto ($path, $x, $y)
1943
1944	=cut	2336	=cut
		2337
		2338	our $GOTOGEN;
1945		2339
1946	sub cf::object::player::goto {	2340	sub cf::object::player::goto {
1947	my ($self, $path, $x, $y) = @_;	2341	my ($self, $path, $x, $y, $check, $done) = @_;
		2342
		2343	# do generation counting so two concurrent goto's will be executed in-order
		2344	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1948		2345
1949	$self->enter_link;	2346	$self->enter_link;
1950		2347
1951	(async {	2348	(async {
1952	my $map = eval {	2349	my $map = eval {
1953	my $map = cf::map::find $path;	2350	my $map = cf::map::find $path;
		2351
		2352	if ($map) {
1954	$map = $map->customise_for ($self) if $map;	2353	$map = $map->customise_for ($self);
		2354	$map = $check->($map) if $check && $map;
		2355	} else {
		2356	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2357	}
		2358
1955	$map	2359	$map
		2360	};
		2361
		2362	if ($@) {
		2363	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2364	LOG llevError | logBacktrace, Carp::longmess $@;
1956	} or	2365	}
1957	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1958		2366
		2367	if ($gen == $self->{_goto_generation}) {
		2368	delete $self->{_goto_generation};
1959	$self->leave_link ($map, $x, $y);	2369	$self->leave_link ($map, $x, $y);
		2370	}
		2371
		2372	$done->() if $done;
1960	})->prio (1);	2373	})->prio (1);
1961	}	2374	}
1962		2375
1963	=item $player_object->enter_exit ($exit_object)	2376	=item $player_object->enter_exit ($exit_object)
1964		2377
…		…
2033	my $hp = $exit->stats->hp;	2446	my $hp = $exit->stats->hp;
2034	my $sp = $exit->stats->sp;	2447	my $sp = $exit->stats->sp;
2035		2448
2036	$self->enter_link;	2449	$self->enter_link;
2037		2450
		2451	# if exit is damned, update players death & WoR home-position
		2452	$self->contr->savebed ($slaying, $hp, $sp)
		2453	if $exit->flag (FLAG_DAMNED);
		2454
2038	(async {	2455	(async {
2039	$self->deactivate_recursive; # just to be sure	2456	$self->deactivate_recursive; # just to be sure
2040	unless (eval {	2457	unless (eval {
2041	$self->goto ($slaying, $hp, $sp);	2458	$self->goto ($slaying, $hp, $sp);
2042		2459
…		…
2069		2486
2070	utf8::encode $text;	2487	utf8::encode $text;
2071	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2488	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2072	}	2489	}
2073		2490
		2491	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2492
		2493	Send a drawinfo or msg packet to the client, formatting the msg for the
		2494	client if neccessary. C<$type> should be a string identifying the type of
		2495	the message, with C<log> being the default. If C<$color> is negative, suppress
		2496	the message unless the client supports the msg packet.
		2497
		2498	=cut
		2499
		2500	sub cf::client::send_msg {
		2501	my ($self, $channel, $msg, $color, @extra) = @_;
		2502
		2503	$msg = $self->pl->expand_cfpod ($msg);
		2504
		2505	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2506
		2507	if (ref $channel) {
		2508	# send meta info to client, if not yet sent
		2509	unless (exists $self->{channel}{$channel->{id}}) {
		2510	$self->{channel}{$channel->{id}} = $channel;
		2511	$self->ext_msg (channel_info => $channel);
		2512	}
		2513
		2514	$channel = $channel->{id};
		2515	}
		2516
		2517	return unless @extra || length $msg;
		2518
		2519	if ($self->can_msg) {
		2520	# default colour, mask it out
		2521	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2522	if $color & cf::NDI_DEF;
		2523
		2524	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2525	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2526	} else {
		2527	if ($color >= 0) {
		2528	# replace some tags by gcfclient-compatible ones
		2529	for ($msg) {
		2530	1 while
		2531	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2532	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2533	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2534	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2535	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2536	}
		2537
		2538	$color &= cf::NDI_COLOR_MASK;
		2539
		2540	utf8::encode $msg;
		2541
		2542	if (0 && $msg =~ /\[/) {
		2543	# COMMAND/INFO
		2544	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2545	} else {
		2546	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2547	$self->send_packet ("drawinfo $color $msg")
		2548	}
		2549	}
		2550	}
		2551	}
		2552
2074	=item $client->ext_event ($type, %msg)	2553	=item $client->ext_msg ($type, @msg)
2075		2554
2076	Sends an exti event to the client.	2555	Sends an ext event to the client.
2077		2556
2078	=cut	2557	=cut
2079		2558
2080	sub cf::client::ext_event($$%) {	2559	sub cf::client::ext_msg($$@) {
2081	my ($self, $type, %msg) = @_;	2560	my ($self, $type, @msg) = @_;
2082		2561
		2562	my $extcmd = $self->extcmd;
		2563
		2564	if ($extcmd == 2) {
		2565	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2566	} elsif ($extcmd == 1) { # TODO: remove
2083	$msg{msgtype} = "event_$type";	2567	push @msg, msgtype => "event_$type";
2084	$self->send_packet ("ext " . cf::to_json \%msg);	2568	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2569	}
2085	}	2570	}
2086		2571
2087	=item $success = $client->query ($flags, "text", \&cb)	2572	=item $success = $client->query ($flags, "text", \&cb)
2088		2573
2089	Queues a query to the client, calling the given callback with	2574	Queues a query to the client, calling the given callback with
2090	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2575	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2091	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2576	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2092		2577
2093	Queries can fail, so check the return code. Or don't, as queries will become	2578	Queries can fail, so check the return code. Or don't, as queries will
2094	reliable at some point in the future.	2579	become reliable at some point in the future.
2095		2580
2096	=cut	2581	=cut
2097		2582
2098	sub cf::client::query {	2583	sub cf::client::query {
2099	my ($self, $flags, $text, $cb) = @_;	2584	my ($self, $flags, $text, $cb) = @_;
…		…
2107	utf8::encode $text;	2592	utf8::encode $text;
2108	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2593	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2109		2594
2110	$self->send_packet ($self->{query_queue}[0][0])	2595	$self->send_packet ($self->{query_queue}[0][0])
2111	if @{ $self->{query_queue} } == 1;	2596	if @{ $self->{query_queue} } == 1;
		2597
		2598	1
2112	}	2599	}
2113		2600
2114	cf::client->attach (	2601	cf::client->attach (
		2602	on_connect => sub {
		2603	my ($ns) = @_;
		2604
		2605	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2606	},
2115	on_reply => sub {	2607	on_reply => sub {
2116	my ($ns, $msg) = @_;	2608	my ($ns, $msg) = @_;
2117		2609
2118	# this weird shuffling is so that direct followup queries	2610	# this weird shuffling is so that direct followup queries
2119	# get handled first	2611	# get handled first
…		…
2131	} else {	2623	} else {
2132	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2624	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2133	}	2625	}
2134	}	2626	}
2135	},	2627	},
		2628	on_exticmd => sub {
		2629	my ($ns, $buf) = @_;
		2630
		2631	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2632
		2633	if (ref $msg) {
		2634	my ($type, $reply, @payload) =
		2635	"ARRAY" eq ref $msg
		2636	? @$msg
		2637	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2638
		2639	if (my $cb = $EXTICMD{$type}) {
		2640	my @reply = $cb->($ns, @payload);
		2641
		2642	$ns->ext_reply ($reply, @reply)
		2643	if $reply;
		2644	}
		2645	} else {
		2646	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2647	}
		2648
		2649	cf::override;
		2650	},
2136	);	2651	);
2137		2652
2138	=item $client->async (\&cb)	2653	=item $client->async (\&cb)
2139		2654
2140	Create a new coroutine, running the specified callback. The coroutine will	2655	Create a new coroutine, running the specified callback. The coroutine will
…		…
2181	our $safe = new Safe "safe";	2696	our $safe = new Safe "safe";
2182	our $safe_hole = new Safe::Hole;	2697	our $safe_hole = new Safe::Hole;
2183		2698
2184	$SIG{FPE} = 'IGNORE';	2699	$SIG{FPE} = 'IGNORE';
2185		2700
2186	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2701	$safe->permit_only (Opcode::opset qw(
		2702	:base_core :base_mem :base_orig :base_math
		2703	grepstart grepwhile mapstart mapwhile
		2704	sort time
		2705	));
2187		2706
2188	# here we export the classes and methods available to script code	2707	# here we export the classes and methods available to script code
2189		2708
2190	=pod	2709	=pod
2191		2710
2192	The following functions and methods are available within a safe environment:	2711	The following functions and methods are available within a safe environment:
2193		2712
2194	cf::object contr pay_amount pay_player map	2713	cf::object
		2714	contr pay_amount pay_player map x y force_find force_add
		2715	insert remove name archname title slaying race
		2716
2195	cf::object::player player	2717	cf::object::player
2196	cf::player peaceful	2718	player
2197	cf::map trigger	2719
		2720	cf::player
		2721	peaceful
		2722
		2723	cf::map
		2724	trigger
2198		2725
2199	=cut	2726	=cut
2200		2727
2201	for (	2728	for (
2202	["cf::object" => qw(contr pay_amount pay_player map)],	2729	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2730	insert remove inv name archname title slaying race)],
2203	["cf::object::player" => qw(player)],	2731	["cf::object::player" => qw(player)],
2204	["cf::player" => qw(peaceful)],	2732	["cf::player" => qw(peaceful)],
2205	["cf::map" => qw(trigger)],	2733	["cf::map" => qw(trigger)],
2206	) {	2734	) {
2207	no strict 'refs';	2735	no strict 'refs';
…		…
2278	=back	2806	=back
2279		2807
2280	=cut	2808	=cut
2281		2809
2282	#############################################################################	2810	#############################################################################
2283
2284	=head2 EXTENSION DATABASE SUPPORT
2285
2286	Crossfire maintains a very simple database for extension use. It can
2287	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2288	convert to/from binary).
2289
2290	The parameter C<$family> should best start with the name of the extension
2291	using it, it should be unique.
2292
2293	=over 4
2294
2295	=item $value = cf::db_get $family => $key
2296
2297	Returns a single value from the database.
2298
2299	=item cf::db_put $family => $key => $value
2300
2301	Stores the given C<$value> in the family.
2302
2303	=cut
2304
2305	our $DB;
2306
2307	sub db_init {
2308	unless ($DB) {
2309	$DB = BDB::db_create $DB_ENV;
2310
2311	cf::sync_job {
2312	eval {
2313	$DB->set_flags (BDB::CHKSUM);
2314
2315	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2316	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2317	cf::cleanup "db_open(db): $!" if $!;
2318	};
2319	cf::cleanup "db_open(db): $@" if $@;
2320	};
2321	}
2322	}
2323
2324	sub db_get($$) {
2325	my $key = "$_[0]/$_[1]";
2326
2327	cf::sync_job {
2328	BDB::db_get $DB, undef, $key, my $data;
2329
2330	$! ? ()
2331	: $data
2332	}
2333	}
2334
2335	sub db_put($$$) {
2336	BDB::dbreq_pri 4;
2337	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2338	}
2339
2340	=item cf::cache $id => [$paths...], $processversion => $process
2341
2342	Generic caching function that returns the value of the resource $id,
2343	caching and regenerating as required.
2344
2345	This function can block.
2346
2347	=cut
2348
2349	sub cache {
2350	my ($id, $src, $processversion, $process) = @_;
2351
2352	my $meta =
2353	join "\x00",
2354	$processversion,
2355	map {
2356	aio_stat $_
2357	and Carp::croak "$_: $!";
2358
2359	($_, (stat _)[7,9])
2360	} @$src;
2361
2362	my $dbmeta = db_get cache => "$id/meta";
2363	if ($dbmeta ne $meta) {
2364	# changed, we may need to process
2365
2366	my @data;
2367	my $md5;
2368
2369	for (0 .. $#$src) {
2370	0 <= aio_load $src->[$_], $data[$_]
2371	or Carp::croak "$src->[$_]: $!";
2372	}
2373
2374	# if processing is expensive, check
2375	# checksum first
2376	if (1) {
2377	$md5 =
2378	join "\x00",
2379	$processversion,
2380	map {
2381	Coro::cede;
2382	($src->[$_], Digest::MD5::md5_hex $data[$_])
2383	} 0.. $#$src;
2384
2385
2386	my $dbmd5 = db_get cache => "$id/md5";
2387	if ($dbmd5 eq $md5) {
2388	db_put cache => "$id/meta", $meta;
2389
2390	return db_get cache => "$id/data";
2391	}
2392	}
2393
2394	my $t1 = Time::HiRes::time;
2395	my $data = $process->(\@data);
2396	my $t2 = Time::HiRes::time;
2397
2398	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2399
2400	db_put cache => "$id/data", $data;
2401	db_put cache => "$id/md5" , $md5;
2402	db_put cache => "$id/meta", $meta;
2403
2404	return $data;
2405	}
2406
2407	db_get cache => "$id/data"
2408	}
2409
2410	=item fork_call { }, $args
2411
2412	Executes the given code block with the given arguments in a seperate
2413	process, returning the results. Everything must be serialisable with
2414	Coro::Storable. May, of course, block. Note that the executed sub may
2415	never block itself or use any form of Event handling.
2416
2417	=cut
2418
2419	sub fork_call(&@) {
2420	my ($cb, @args) = @_;
2421
2422	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2423	# or die "socketpair: $!";
2424	pipe my $fh1, my $fh2
2425	or die "pipe: $!";
2426
2427	if (my $pid = fork) {
2428	close $fh2;
2429
2430	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2431	$res = Coro::Storable::thaw $res;
2432
2433	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2434
2435	die $$res unless "ARRAY" eq ref $res;
2436
2437	return wantarray ? @$res : $res->[-1];
2438	} else {
2439	local $SIG{__WARN__};
2440	eval {
2441	local $SIG{__DIE__};
2442	close $fh1;
2443
2444	my @res = eval { $cb->(@args) };
2445	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2446	};
2447
2448	warn $@ if $@;
2449	_exit 0;
2450	}
2451	}
2452
2453
2454
2455	#############################################################################
2456	# the server's init and main functions	2811	# the server's init and main functions
2457		2812
2458	sub load_facedata($) {	2813	sub load_facedata($) {
2459	my ($path) = @_;	2814	my ($path) = @_;
		2815
		2816	my $enc = JSON::XS->new->utf8->canonical;
2460		2817
2461	warn "loading facedata from $path\n";	2818	warn "loading facedata from $path\n";
2462		2819
2463	my $facedata;	2820	my $facedata;
2464	0 < aio_load $path, $facedata	2821	0 < aio_load $path, $facedata
…		…
2467	$facedata = Coro::Storable::thaw $facedata;	2824	$facedata = Coro::Storable::thaw $facedata;
2468		2825
2469	$facedata->{version} == 2	2826	$facedata->{version} == 2
2470	or cf::cleanup "$path: version mismatch, cannot proceed.";	2827	or cf::cleanup "$path: version mismatch, cannot proceed.";
2471		2828
		2829	# patch in the exptable
		2830	$facedata->{resource}{"res/exp_table"} = {
		2831	type => FT_RSRC,
		2832	data => $enc->encode ([map cf::level_to_min_exp $_, 0 .. cf::settings->max_level]),
		2833	};
		2834	cf::cede_to_tick;
		2835
2472	{	2836	{
2473	my $faces = $facedata->{faceinfo};	2837	my $faces = $facedata->{faceinfo};
2474		2838
2475	while (my ($face, $info) = each %$faces) {	2839	while (my ($face, $info) = each %$faces) {
2476	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2840	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2477	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2841	cf::face::set_visibility $idx, $info->{visibility};
		2842	cf::face::set_magicmap $idx, $info->{magicmap};
2478	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2843	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2479	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2844	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2480	Coro::cede;	2845
		2846	cf::cede_to_tick;
2481	}	2847	}
2482		2848
2483	while (my ($face, $info) = each %$faces) {	2849	while (my ($face, $info) = each %$faces) {
2484	next unless $info->{smooth};	2850	next unless $info->{smooth};
2485	my $idx = cf::face::find $face	2851	my $idx = cf::face::find $face
2486	or next;	2852	or next;
2487	if (my $smooth = cf::face::find $info->{smooth}) {	2853	if (my $smooth = cf::face::find $info->{smooth}) {
		2854	cf::face::set_smooth $idx, $smooth;
2488	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2855	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2489	} else {	2856	} else {
2490	warn "smooth face '$info->{smooth}' not found for face '$face'";	2857	warn "smooth face '$info->{smooth}' not found for face '$face'";
2491	}	2858	}
2492	Coro::cede;	2859
		2860	cf::cede_to_tick;
2493	}	2861	}
2494	}	2862	}
2495		2863
2496	{	2864	{
2497	my $anims = $facedata->{animinfo};	2865	my $anims = $facedata->{animinfo};
2498		2866
2499	while (my ($anim, $info) = each %$anims) {	2867	while (my ($anim, $info) = each %$anims) {
2500	cf::anim::set $anim, $info->{frames}, $info->{facings};	2868	cf::anim::set $anim, $info->{frames}, $info->{facings};
2501	Coro::cede;	2869	cf::cede_to_tick;
2502	}	2870	}
2503		2871
2504	cf::anim::invalidate_all; # d'oh	2872	cf::anim::invalidate_all; # d'oh
2505	}	2873	}
2506		2874
		2875	{
		2876	# TODO: for gcfclient pleasure, we should give resources
		2877	# that gcfclient doesn't grok a >10000 face index.
		2878	my $res = $facedata->{resource};
		2879
		2880	my $soundconf = delete $res->{"res/sound.conf"};
		2881
		2882	while (my ($name, $info) = each %$res) {
		2883	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2884	my $data;
		2885
		2886	if ($info->{type} & 1) {
		2887	# prepend meta info
		2888
		2889	my $meta = $enc->encode ({
		2890	name => $name,
		2891	%{ $info->{meta} || {} },
		2892	});
		2893
		2894	$data = pack "(w/a*)*", $meta, $info->{data};
		2895	}
		2896
		2897	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2898	cf::face::set_type $idx, $info->{type};
		2899
		2900	cf::cede_to_tick;
		2901	}
		2902
		2903	if ($soundconf) {
		2904	$soundconf = $enc->decode (delete $soundconf->{data});
		2905
		2906	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2907	my $sound = $soundconf->{compat}[$_]
		2908	or next;
		2909
		2910	my $face = cf::face::find "sound/$sound->[1]";
		2911	cf::sound::set $sound->[0] => $face;
		2912	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2913	}
		2914
		2915	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2916	my $face = cf::face::find "sound/$v";
		2917	cf::sound::set $k => $face;
		2918	}
		2919	}
		2920	}
		2921
2507	1	2922	1
2508	}	2923	}
		2924
		2925	register_exticmd fx_want => sub {
		2926	my ($ns, $want) = @_;
		2927
		2928	while (my ($k, $v) = each %$want) {
		2929	$ns->fx_want ($k, $v);
		2930	}
		2931	};
2509		2932
2510	sub reload_regions {	2933	sub reload_regions {
2511	load_resource_file "$MAPDIR/regions"	2934	load_resource_file "$MAPDIR/regions"
2512	or die "unable to load regions file\n";	2935	or die "unable to load regions file\n";
		2936
		2937	for (cf::region::list) {
		2938	$_->{match} = qr/$_->{match}/
		2939	if exists $_->{match};
		2940	}
2513	}	2941	}
2514		2942
2515	sub reload_facedata {	2943	sub reload_facedata {
2516	load_facedata "$DATADIR/facedata"	2944	load_facedata "$DATADIR/facedata"
2517	or die "unable to load facedata\n";	2945	or die "unable to load facedata\n";
2518	}	2946	}
2519		2947
2520	sub reload_archetypes {	2948	sub reload_archetypes {
2521	load_resource_file "$DATADIR/archetypes"	2949	load_resource_file "$DATADIR/archetypes"
2522	or die "unable to load archetypes\n";	2950	or die "unable to load archetypes\n";
		2951	#d# NEED to laod twice to resolve forward references
		2952	# this really needs to be done in an extra post-pass
		2953	# (which needs to be synchronous, so solve it differently)
		2954	load_resource_file "$DATADIR/archetypes"
		2955	or die "unable to load archetypes\n";
2523	}	2956	}
2524		2957
2525	sub reload_treasures {	2958	sub reload_treasures {
2526	load_resource_file "$DATADIR/treasures"	2959	load_resource_file "$DATADIR/treasures"
2527	or die "unable to load treasurelists\n";	2960	or die "unable to load treasurelists\n";
…		…
2530	sub reload_resources {	2963	sub reload_resources {
2531	warn "reloading resource files...\n";	2964	warn "reloading resource files...\n";
2532		2965
2533	reload_regions;	2966	reload_regions;
2534	reload_facedata;	2967	reload_facedata;
		2968	#reload_archetypes;#d#
2535	reload_archetypes;	2969	reload_archetypes;
2536	reload_treasures;	2970	reload_treasures;
2537		2971
2538	warn "finished reloading resource files\n";	2972	warn "finished reloading resource files\n";
2539	}	2973	}
…		…
2596	},	3030	},
2597	);	3031	);
2598	}	3032	}
2599	}	3033	}
2600		3034
		3035	sub write_runtime {
		3036	my $runtime = "$LOCALDIR/runtime";
		3037
		3038	# first touch the runtime file to show we are still running:
		3039	# the fsync below can take a very very long time.
		3040
		3041	IO::AIO::aio_utime $runtime, undef, undef;
		3042
		3043	my $guard = cf::lock_acquire "write_runtime";
		3044
		3045	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3046	or return;
		3047
		3048	my $value = $cf::RUNTIME + 90 + 10;
		3049	# 10 is the runtime save interval, for a monotonic clock
		3050	# 60 allows for the watchdog to kill the server.
		3051
		3052	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3053	and return;
		3054
		3055	# always fsync - this file is important
		3056	aio_fsync $fh
		3057	and return;
		3058
		3059	# touch it again to show we are up-to-date
		3060	aio_utime $fh, undef, undef;
		3061
		3062	close $fh
		3063	or return;
		3064
		3065	aio_rename "$runtime~", $runtime
		3066	and return;
		3067
		3068	warn "runtime file written.\n";
		3069
		3070	1
		3071	}
		3072
2601	sub emergency_save() {	3073	sub emergency_save() {
2602	my $freeze_guard = cf::freeze_mainloop;	3074	my $freeze_guard = cf::freeze_mainloop;
2603		3075
2604	warn "enter emergency perl save\n";	3076	warn "enter emergency perl save\n";
2605		3077
…		…
2680	%EXT_CORO = ();	3152	%EXT_CORO = ();
2681		3153
2682	warn "removing commands";	3154	warn "removing commands";
2683	%COMMAND = ();	3155	%COMMAND = ();
2684		3156
2685	warn "removing ext commands";	3157	warn "removing ext/exti commands";
2686	%EXTCMD = ();	3158	%EXTCMD = ();
		3159	%EXTICMD = ();
2687		3160
2688	warn "unloading/nuking all extensions";	3161	warn "unloading/nuking all extensions";
2689	for my $pkg (@EXTS) {	3162	for my $pkg (@EXTS) {
2690	warn "... unloading $pkg";	3163	warn "... unloading $pkg";
2691		3164
…		…
2809	my $signal = new Coro::Signal;	3282	my $signal = new Coro::Signal;
2810	push @WAIT_FOR_TICK_BEGIN, $signal;	3283	push @WAIT_FOR_TICK_BEGIN, $signal;
2811	$signal->wait;	3284	$signal->wait;
2812	}	3285	}
2813		3286
		3287	my $min = 1e6;#d#
		3288	my $avg = 10;
2814	$TICK_WATCHER = Event->timer (	3289	$TICK_WATCHER = Event->timer (
2815	reentrant => 0,	3290	reentrant => 0,
2816	parked => 1,	3291	parked => 1,
2817	prio => 0,	3292	prio => 0,
2818	at => $NEXT_TICK || $TICK,	3293	at => $NEXT_TICK || $TICK,
…		…
2822	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3297	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2823	unless ++$bug_warning > 10;	3298	unless ++$bug_warning > 10;
2824	return;	3299	return;
2825	}	3300	}
2826		3301
2827	$NOW = Event::time;	3302	$NOW = $tick_start = Event::time;
2828		3303
2829	cf::server_tick; # one server iteration	3304	cf::server_tick; # one server iteration
		3305
		3306	0 && sync_job {#d#
		3307	for(1..10) {
		3308	my $t = Event::time;
		3309	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3310	or die;
		3311
		3312	$map->width (50);
		3313	$map->height (50);
		3314	$map->alloc;
		3315	$map->_load_objects ("/tmp/x.map", 1);
		3316	my $t = Event::time - $t;
		3317
		3318	#next unless $t < 0.0013;#d#
		3319	if ($t < $min) {
		3320	$min = $t;
		3321	}
		3322	$avg = $avg * 0.99 + $t * 0.01;
		3323	}
		3324	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3325	exit 0;
		3326	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3327	};
2830		3328
2831	$RUNTIME += $TICK;	3329	$RUNTIME += $TICK;
2832	$NEXT_TICK += $TICK;	3330	$NEXT_TICK += $TICK;
2833		3331
2834	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3332	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2840	}	3338	}
2841		3339
2842	# my $AFTER = Event::time;	3340	# my $AFTER = Event::time;
2843	# warn $AFTER - $NOW;#d#	3341	# warn $AFTER - $NOW;#d#
2844		3342
		3343	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3344	$sig->send;
		3345	}
		3346	while (my $sig = shift @WAIT_FOR_TICK) {
		3347	$sig->send;
		3348	}
		3349
		3350	$NOW = Event::time;
		3351
2845	# if we are delayed by four ticks or more, skip them all	3352	# if we are delayed by four ticks or more, skip them all
2846	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3353	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2847		3354
2848	$TICK_WATCHER->at ($NEXT_TICK);	3355	$TICK_WATCHER->at ($NEXT_TICK);
2849	$TICK_WATCHER->start;	3356	$TICK_WATCHER->start;
2850		3357
2851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3358	$LOAD = ($NOW - $tick_start) / $TICK;
2852	$sig->send;	3359	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2853	}
2854	while (my $sig = shift @WAIT_FOR_TICK) {
2855	$sig->send;
2856	}
2857		3360
2858	_post_tick;	3361	_post_tick;
		3362
		3363
2859	},	3364	},
2860	);	3365	);
2861		3366
2862	{	3367	{
2863	BDB::max_poll_time $TICK * 0.1;	3368	BDB::max_poll_time $TICK * 0.1;
…		…
2922	prio => 6,	3427	prio => 6,
2923	cb => \&IO::AIO::poll_cb,	3428	cb => \&IO::AIO::poll_cb,
2924	);	3429	);
2925	}	3430	}
2926		3431
		3432	my $_log_backtrace;
		3433
		3434	sub _log_backtrace {
		3435	my ($msg, @addr) = @_;
		3436
		3437	$msg =~ s/\n//;
		3438
		3439	# limit the # of concurrent backtraces
		3440	if ($_log_backtrace < 2) {
		3441	++$_log_backtrace;
		3442	async {
		3443	my @bt = fork_call {
		3444	@addr = map { sprintf "%x", $_ } @addr;
		3445	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3446	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3447	or die "addr2line: $!";
		3448
		3449	my @funcs;
		3450	my @res = <$fh>;
		3451	chomp for @res;
		3452	while (@res) {
		3453	my ($func, $line) = splice @res, 0, 2, ();
		3454	push @funcs, "[$func] $line";
		3455	}
		3456
		3457	@funcs
		3458	};
		3459
		3460	LOG llevInfo, "[ABT] $msg\n";
		3461	LOG llevInfo, "[ABT] $_\n" for @bt;
		3462	--$_log_backtrace;
		3463	};
		3464	} else {
		3465	LOG llevInfo, "[ABT] $msg\n";
		3466	LOG llevInfo, "[ABT] [suppressed]\n";
		3467	}
		3468	}
		3469
2927	# load additional modules	3470	# load additional modules
2928	use cf::pod;	3471	use cf::pod;
2929		3472
2930	END { cf::emergency_save }	3473	END { cf::emergency_save }
2931		3474

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