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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.254 by root, Thu Apr 19 11:12:45 2007 UTC vs.
Revision 1.338 by root, Tue Aug 21 01:07:47 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
		1154	my @reply;
		1155
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1156	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1157	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1158	}
		1159
		1160	$pl->ext_reply ($reply, @reply)
		1161	if $reply;
		1162
904	} else {	1163	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1164	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1165	}
907		1166
908	cf::override;	1167	cf::override;
909	},	1168	},
910	);	1169	);
911		1170
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 {	1171	sub load_extensions {
		1172	cf::sync_job {
		1173	my %todo;
		1174
947	for my $ext (<$LIBDIR/*.ext>) {	1175	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1176	next unless -r $path;
949	eval {	1177
950	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;
951	1	1235	}
952	} or warn "$ext not loaded: $@";	1236
		1237	skip:
		1238	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1239	unless $progress;
		1240	}
953	}	1241	};
954	}	1242	}
955		1243
956	#############################################################################	1244	#############################################################################
		1245
		1246	=back
957		1247
958	=head2 CORE EXTENSIONS	1248	=head2 CORE EXTENSIONS
959		1249
960	Functions and methods that extend core crossfire objects.	1250	Functions and methods that extend core crossfire objects.
961		1251
…		…
1048	$cf::PLAYER{$login} = $self;	1338	$cf::PLAYER{$login} = $self;
1049		1339
1050	$self	1340	$self
1051	}	1341	}
1052		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
1053	=item $pl->quit_character	1353	=item $pl->quit_character
1054		1354
1055	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
1056	be destroyed. May block for a long time.	1356	be destroyed. May block for a long time.
1057		1357
…		…
1149	}	1449	}
1150		1450
1151	\@paths	1451	\@paths
1152	}	1452	}
1153		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
1154	=item $player->ext_reply ($msgid, %msg)	1504	=item $player->ext_reply ($msgid, @msg)
1155		1505
1156	Sends an ext reply to the player.	1506	Sends an ext reply to the player.
1157		1507
1158	=cut	1508	=cut
1159		1509
1160	sub ext_reply($$%) {	1510	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1511	my ($self, $id, @msg) = @_;
1162		1512
1163	$msg{msgid} = $id;	1513	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1514	}
1167		1515
1168	=item $player->ext_event ($type, %msg)	1516	=item $player->ext_msg ($type, @msg)
1169		1517
1170	Sends an ext event to the client.	1518	Sends an ext event to the client.
1171		1519
1172	=cut	1520	=cut
1173		1521
1174	sub ext_event($$%) {	1522	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1523	my ($self, $type, @msg) = @_;
1176		1524
1177	$self->ns->ext_event ($type, %msg);	1525	$self->ns->ext_msg ($type, @msg);
1178	}	1526	}
1179		1527
1180	=head3 cf::region	1528	=head3 cf::region
1181		1529
1182	=over 4	1530	=over 4
…		…
1185		1533
1186	package cf::region;	1534	package cf::region;
1187		1535
1188	=item cf::region::find_by_path $path	1536	=item cf::region::find_by_path $path
1189		1537
1190	Tries to decuce the probable region for a map knowing only its path.	1538	Tries to decuce the likely region for a map knowing only its path.
1191		1539
1192	=cut	1540	=cut
1193		1541
1194	sub find_by_path($) {	1542	sub find_by_path($) {
1195	my ($path) = @_;	1543	my ($path) = @_;
1196		1544
1197	my ($match, $specificity);	1545	my ($match, $specificity);
1198		1546
1199	for my $region (list) {	1547	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1548	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1549	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1550	if $region->specificity > $specificity;
1203	}	1551	}
1204	}	1552	}
1205		1553
…		…
1269	my ($self, $merge) = @_;	1617	my ($self, $merge) = @_;
1270		1618
1271	# we have to keep some variables in memory intact	1619	# we have to keep some variables in memory intact
1272	local $self->{path};	1620	local $self->{path};
1273	local $self->{load_path};	1621	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1622
1277	$self->SUPER::thawer_merge ($merge);	1623	$self->SUPER::thawer_merge ($merge);
1278	}	1624	}
1279		1625
1280	sub normalise {	1626	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1673	$self->init; # pass $1 etc.
1328	return $self;	1674	return $self;
1329	}	1675	}
1330	}	1676	}
1331		1677
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1678	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1679	()
1334	}	1680	}
1335		1681
1336	sub init {	1682	sub init {
1337	my ($self) = @_;	1683	my ($self) = @_;
…		…
1378	sub change_all_map_light {	1724	sub change_all_map_light {
1379	my ($change) = @_;	1725	my ($change) = @_;
1380		1726
1381	$_->change_map_light ($change)	1727	$_->change_map_light ($change)
1382	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	$self->do_decay_objects;
1383	}	1737	}
1384		1738
1385	sub unlink_save {	1739	sub unlink_save {
1386	my ($self) = @_;	1740	my ($self) = @_;
1387		1741
…		…
1445	$self->load_header_orig	1799	$self->load_header_orig
1446	or return;	1800	or return;
1447	$self->prepare_orig;	1801	$self->prepare_orig;
1448	}	1802	}
1449		1803
		1804	$self->{deny_reset} = 1
		1805	if $self->no_reset;
		1806
1450	$self->default_region (cf::region::find_by_path $self->{path})	1807	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1808	unless $self->default_region;
1452		1809
1453	1	1810	1
1454	}	1811	}
…		…
1469	$map->{last_save} = $cf::RUNTIME;	1826	$map->{last_save} = $cf::RUNTIME;
1470		1827
1471	$map->load_header	1828	$map->load_header
1472	or return;	1829	or return;
1473		1830
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1831	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1832	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1833	#$cf::WAIT_FOR_TICK->wait;
1477	$map->reset;	1834	$map->reset;
1478	undef $guard;	1835	undef $guard;
1479	return find $path;	1836	return find $path;
…		…
1490	my ($self) = @_;	1847	my ($self) = @_;
1491		1848
1492	local $self->{deny_reset} = 1; # loading can take a long time	1849	local $self->{deny_reset} = 1; # loading can take a long time
1493		1850
1494	my $path = $self->{path};	1851	my $path = $self->{path};
		1852
		1853	{
1495	my $guard = cf::lock_acquire "map_load:$path";	1854	my $guard = cf::lock_acquire "map_load:$path";
1496		1855
1497	return if $self->in_memory != cf::MAP_SWAPPED;	1856	return if $self->in_memory != cf::MAP_SWAPPED;
1498		1857
1499	$self->in_memory (cf::MAP_LOADING);	1858	$self->in_memory (cf::MAP_LOADING);
1500		1859
1501	$self->alloc;	1860	$self->alloc;
1502		1861
1503	$self->pre_load;	1862	$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;	1863	Coro::cede;
1530	$self->set_darkness_map;	1864
		1865	$self->_load_objects ($self->{load_path}, 1)
		1866	or return;
		1867
		1868	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1869	if delete $self->{load_original};
		1870
		1871	if (my $uniq = $self->uniq_path) {
		1872	utf8::encode $uniq;
		1873	if (aio_open $uniq, O_RDONLY, 0) {
		1874	$self->clear_unique_items;
		1875	$self->_load_objects ($uniq, 0);
		1876	}
		1877	}
		1878
		1879	Coro::cede;
		1880	# now do the right thing for maps
		1881	$self->link_multipart_objects;
1531	$self->difficulty ($self->estimate_difficulty)	1882	$self->difficulty ($self->estimate_difficulty)
1532	unless $self->difficulty;	1883	unless $self->difficulty;
1533	Coro::cede;	1884	Coro::cede;
		1885
		1886	unless ($self->{deny_activate}) {
		1887	$self->decay_objects;
		1888	$self->fix_auto_apply;
		1889	$self->update_buttons;
		1890	Coro::cede;
		1891	$self->set_darkness_map;
		1892	Coro::cede;
1534	$self->activate;	1893	$self->activate;
1535	Coro::cede;	1894	}
		1895
		1896	$self->{last_save} = $cf::RUNTIME;
		1897	$self->last_access ($cf::RUNTIME);
		1898
		1899	$self->in_memory (cf::MAP_IN_MEMORY);
1536	}	1900	}
1537		1901
1538	$self->post_load;	1902	$self->post_load;
1539	Coro::cede;
1540
1541	$self->in_memory (cf::MAP_IN_MEMORY);
1542	}	1903	}
1543		1904
1544	sub customise_for {	1905	sub customise_for {
1545	my ($self, $ob) = @_;	1906	my ($self, $ob) = @_;
1546		1907
1547	return find "~" . $ob->name . "/" . $self->{path}	1908	return find "~" . $ob->name . "/" . $self->{path}
1548	if $self->per_player;	1909	if $self->per_player;
1549		1910
		1911	# return find "?party/" . $ob->name . "/" . $self->{path}
		1912	# if $self->per_party;
		1913
1550	$self	1914	$self
1551	}	1915	}
1552		1916
1553	# find and load all maps in the 3x3 area around a map	1917	# find and load all maps in the 3x3 area around a map
1554	sub load_diag {	1918	sub load_neighbours {
1555	my ($map) = @_;	1919	my ($map) = @_;
1556		1920
1557	my @diag; # diagonal neighbours	1921	my @neigh; # diagonal neighbours
1558		1922
1559	for (0 .. 3) {	1923	for (0 .. 3) {
1560	my $neigh = $map->tile_path ($_)	1924	my $neigh = $map->tile_path ($_)
1561	or next;	1925	or next;
1562	$neigh = find $neigh, $map	1926	$neigh = find $neigh, $map
1563	or next;	1927	or next;
1564	$neigh->load;	1928	$neigh->load;
1565		1929
		1930	push @neigh,
1566	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1931	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1567	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1932	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1568	}	1933	}
1569		1934
1570	for (@diag) {	1935	for (grep defined $_->[0], @neigh) {
		1936	my ($path, $origin) = @$_;
1571	my $neigh = find @$_	1937	my $neigh = find $path, $origin
1572	or next;	1938	or next;
1573	$neigh->load;	1939	$neigh->load;
1574	}	1940	}
1575	}	1941	}
1576		1942
…		…
1600		1966
1601	undef $MAP_PREFETCH{$path};	1967	undef $MAP_PREFETCH{$path};
1602	$MAP_PREFETCHER ||= cf::async {	1968	$MAP_PREFETCHER ||= cf::async {
1603	while (%MAP_PREFETCH) {	1969	while (%MAP_PREFETCH) {
1604	for my $path (keys %MAP_PREFETCH) {	1970	for my $path (keys %MAP_PREFETCH) {
1605	my $map = find $path	1971	if (my $map = find $path) {
1606	or next;
1607	$map->load;	1972	$map->load;
		1973	}
1608		1974
1609	delete $MAP_PREFETCH{$path};	1975	delete $MAP_PREFETCH{$path};
1610	}	1976	}
1611	}	1977	}
1612	undef $MAP_PREFETCHER;	1978	undef $MAP_PREFETCHER;
…		…
1664		2030
1665	sub reset_at {	2031	sub reset_at {
1666	my ($self) = @_;	2032	my ($self) = @_;
1667		2033
1668	# TODO: safety, remove and allow resettable per-player maps	2034	# 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};	2035	return 1e99 if $self->{deny_reset};
1671		2036
1672	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2037	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1673	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2038	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1674		2039
…		…
1685	my ($self) = @_;	2050	my ($self) = @_;
1686		2051
1687	my $lock = cf::lock_acquire "map_data:$self->{path}";	2052	my $lock = cf::lock_acquire "map_data:$self->{path}";
1688		2053
1689	return if $self->players;	2054	return if $self->players;
1690	return if $self->isa ("ext::map_per_player");#d#
1691		2055
1692	warn "resetting map ", $self->path;#d#	2056	warn "resetting map ", $self->path;
1693		2057
1694	$self->in_memory (cf::MAP_SWAPPED);	2058	$self->in_memory (cf::MAP_SWAPPED);
1695		2059
1696	# need to save uniques path	2060	# need to save uniques path
1697	unless ($self->{deny_save}) {	2061	unless ($self->{deny_save}) {
…		…
1729	$cf::MAP{$self->path} = $self;	2093	$cf::MAP{$self->path} = $self;
1730		2094
1731	$self->reset; # polite request, might not happen	2095	$self->reset; # polite request, might not happen
1732	}	2096	}
1733		2097
		2098	=item $maps = cf::map::tmp_maps
		2099
		2100	Returns an arrayref with all map paths of currently instantiated and saved
		2101	maps. May block.
		2102
		2103	=cut
		2104
		2105	sub tmp_maps() {
		2106	[
		2107	map {
		2108	utf8::decode $_;
		2109	/\.map$/
		2110	? normalise $_
		2111	: ()
		2112	} @{ aio_readdir $TMPDIR or [] }
		2113	]
		2114	}
		2115
		2116	=item $maps = cf::map::random_maps
		2117
		2118	Returns an arrayref with all map paths of currently instantiated and saved
		2119	random maps. May block.
		2120
		2121	=cut
		2122
		2123	sub random_maps() {
		2124	[
		2125	map {
		2126	utf8::decode $_;
		2127	/\.map$/
		2128	? normalise "?random/$_"
		2129	: ()
		2130	} @{ aio_readdir $RANDOMDIR or [] }
		2131	]
		2132	}
		2133
1734	=item cf::map::unique_maps	2134	=item cf::map::unique_maps
1735		2135
1736	Returns an arrayref of paths of all shared maps that have	2136	Returns an arrayref of paths of all shared maps that have
1737	instantiated unique items. May block.	2137	instantiated unique items. May block.
1738		2138
1739	=cut	2139	=cut
1740		2140
1741	sub unique_maps() {	2141	sub unique_maps() {
1742	my $files = aio_readdir $UNIQUEDIR	2142	[
1743	or return;	2143	map {
1744
1745	my @paths;
1746
1747	for (@$files) {
1748	utf8::decode $_;	2144	utf8::decode $_;
1749	next if /\.pst$/;	2145	/\.map$/
1750	next unless /^$PATH_SEP/o;	2146	? normalise $_
1751		2147	: ()
1752	push @paths, cf::map::normalise $_;	2148	} @{ aio_readdir $UNIQUEDIR or [] }
1753	}	2149	]
1754
1755	\@paths
1756	}	2150	}
1757		2151
1758	package cf;	2152	package cf;
1759		2153
1760	=back	2154	=back
…		…
1806		2200
1807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2201	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1808		2202
1809	if ($self->{record_replies}) {	2203	if ($self->{record_replies}) {
1810	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2204	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2205
1811	} else {	2206	} else {
		2207	my $pl = $self->contr;
		2208
		2209	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2210	my $dialog = $pl->{npc_dialog};
		2211	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2212
		2213	} else {
1812	$msg = $npc->name . " says: $msg" if $npc;	2214	$msg = $npc->name . " says: $msg" if $npc;
1813	$self->message ($msg, $flags);	2215	$self->message ($msg, $flags);
		2216	}
1814	}	2217	}
		2218	}
		2219
		2220	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2221
		2222	=cut
		2223
		2224	sub cf::object::send_msg {
		2225	my $pl = shift->contr
		2226	or return;
		2227	$pl->send_msg (@_);
1815	}	2228	}
1816		2229
1817	=item $player_object->may ("access")	2230	=item $player_object->may ("access")
1818		2231
1819	Returns wether the given player is authorized to access resource "access"	2232	Returns wether the given player is authorized to access resource "access"
…		…
1866	$self->deactivate_recursive;	2279	$self->deactivate_recursive;
1867		2280
1868	return if UNIVERSAL::isa $self->map, "ext::map_link";	2281	return if UNIVERSAL::isa $self->map, "ext::map_link";
1869		2282
1870	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2283	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1871	if $self->map;	2284	if $self->map && $self->map->{path} ne "{link}";
1872		2285
1873	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2286	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1874	}	2287	}
1875		2288
1876	sub cf::object::player::leave_link {	2289	sub cf::object::player::leave_link {
1877	my ($self, $map, $x, $y) = @_;	2290	my ($self, $map, $x, $y) = @_;
		2291
		2292	return unless $self->contr->active;
1878		2293
1879	my $link_pos = delete $self->{_link_pos};	2294	my $link_pos = delete $self->{_link_pos};
1880		2295
1881	unless ($map) {	2296	unless ($map) {
1882	# restore original map position	2297	# restore original map position
…		…
1896	# use -1 or undef as default coordinates, not 0, 0	2311	# use -1 or undef as default coordinates, not 0, 0
1897	($x, $y) = ($map->enter_x, $map->enter_y)	2312	($x, $y) = ($map->enter_x, $map->enter_y)
1898	if $x <=0 && $y <= 0;	2313	if $x <=0 && $y <= 0;
1899		2314
1900	$map->load;	2315	$map->load;
1901	$map->load_diag;	2316	$map->load_neighbours;
1902		2317
1903	return unless $self->contr->active;	2318	return unless $self->contr->active;
1904	$self->activate_recursive;	2319	$self->activate_recursive;
1905		2320
1906	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2321	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1907	$self->enter_map ($map, $x, $y);	2322	$self->enter_map ($map, $x, $y);
1908	}	2323	}
1909		2324
1910	cf::player->attach (	2325	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1911	on_logout => sub {
1912	my ($pl) = @_;
1913		2326
1914	# abort map switching before logout	2327	Moves the player to the given map-path and coordinates by first freezing
1915	if ($pl->ob->{_link_pos}) {	2328	her, loading and preparing them map, calling the provided $check callback
1916	cf::sync_job {	2329	that has to return the map if sucecssful, and then unfreezes the player on
1917	$pl->ob->leave_link	2330	the new (success) or old (failed) map position. In either case, $done will
1918	};	2331	be called at the end of this process.
1919	}
1920	},
1921	on_login => sub {
1922	my ($pl) = @_;
1923		2332
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	2333	=cut
		2334
		2335	our $GOTOGEN;
1945		2336
1946	sub cf::object::player::goto {	2337	sub cf::object::player::goto {
1947	my ($self, $path, $x, $y) = @_;	2338	my ($self, $path, $x, $y, $check, $done) = @_;
		2339
		2340	# do generation counting so two concurrent goto's will be executed in-order
		2341	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1948		2342
1949	$self->enter_link;	2343	$self->enter_link;
1950		2344
1951	(async {	2345	(async {
1952	my $map = eval {	2346	my $map = eval {
1953	my $map = cf::map::find $path;	2347	my $map = cf::map::find $path;
		2348
		2349	if ($map) {
1954	$map = $map->customise_for ($self) if $map;	2350	$map = $map->customise_for ($self);
		2351	$map = $check->($map) if $check && $map;
		2352	} else {
		2353	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2354	}
		2355
1955	$map	2356	$map
		2357	};
		2358
		2359	if ($@) {
		2360	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2361	LOG llevError | logBacktrace, Carp::longmess $@;
1956	} or	2362	}
1957	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1958		2363
		2364	if ($gen == $self->{_goto_generation}) {
		2365	delete $self->{_goto_generation};
1959	$self->leave_link ($map, $x, $y);	2366	$self->leave_link ($map, $x, $y);
		2367	}
		2368
		2369	$done->() if $done;
1960	})->prio (1);	2370	})->prio (1);
1961	}	2371	}
1962		2372
1963	=item $player_object->enter_exit ($exit_object)	2373	=item $player_object->enter_exit ($exit_object)
1964		2374
…		…
2033	my $hp = $exit->stats->hp;	2443	my $hp = $exit->stats->hp;
2034	my $sp = $exit->stats->sp;	2444	my $sp = $exit->stats->sp;
2035		2445
2036	$self->enter_link;	2446	$self->enter_link;
2037		2447
		2448	# if exit is damned, update players death & WoR home-position
		2449	$self->contr->savebed ($slaying, $hp, $sp)
		2450	if $exit->flag (FLAG_DAMNED);
		2451
2038	(async {	2452	(async {
2039	$self->deactivate_recursive; # just to be sure	2453	$self->deactivate_recursive; # just to be sure
2040	unless (eval {	2454	unless (eval {
2041	$self->goto ($slaying, $hp, $sp);	2455	$self->goto ($slaying, $hp, $sp);
2042		2456
…		…
2069		2483
2070	utf8::encode $text;	2484	utf8::encode $text;
2071	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2485	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2072	}	2486	}
2073		2487
		2488	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2489
		2490	Send a drawinfo or msg packet to the client, formatting the msg for the
		2491	client if neccessary. C<$type> should be a string identifying the type of
		2492	the message, with C<log> being the default. If C<$color> is negative, suppress
		2493	the message unless the client supports the msg packet.
		2494
		2495	=cut
		2496
		2497	sub cf::client::send_msg {
		2498	my ($self, $channel, $msg, $color, @extra) = @_;
		2499
		2500	$msg = $self->pl->expand_cfpod ($msg);
		2501
		2502	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2503
		2504	if (ref $channel) {
		2505	# send meta info to client, if not yet sent
		2506	unless (exists $self->{channel}{$channel->{id}}) {
		2507	$self->{channel}{$channel->{id}} = $channel;
		2508	$self->ext_msg (channel_info => $channel);
		2509	}
		2510
		2511	$channel = $channel->{id};
		2512	}
		2513
		2514	return unless @extra || length $msg;
		2515
		2516	if ($self->can_msg) {
		2517	# default colour, mask it out
		2518	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2519	if $color & cf::NDI_DEF;
		2520
		2521	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2522	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2523	} else {
		2524	if ($color >= 0) {
		2525	# replace some tags by gcfclient-compatible ones
		2526	for ($msg) {
		2527	1 while
		2528	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2529	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2530	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2531	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2532	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2533	}
		2534
		2535	$color &= cf::NDI_COLOR_MASK;
		2536
		2537	utf8::encode $msg;
		2538
		2539	if (0 && $msg =~ /\[/) {
		2540	# COMMAND/INFO
		2541	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2542	} else {
		2543	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2544	$self->send_packet ("drawinfo $color $msg")
		2545	}
		2546	}
		2547	}
		2548	}
		2549
2074	=item $client->ext_event ($type, %msg)	2550	=item $client->ext_msg ($type, @msg)
2075		2551
2076	Sends an exti event to the client.	2552	Sends an ext event to the client.
2077		2553
2078	=cut	2554	=cut
2079		2555
2080	sub cf::client::ext_event($$%) {	2556	sub cf::client::ext_msg($$@) {
2081	my ($self, $type, %msg) = @_;	2557	my ($self, $type, @msg) = @_;
2082		2558
		2559	my $extcmd = $self->extcmd;
		2560
		2561	if ($extcmd == 2) {
		2562	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2563	} elsif ($extcmd == 1) { # TODO: remove
2083	$msg{msgtype} = "event_$type";	2564	push @msg, msgtype => "event_$type";
2084	$self->send_packet ("ext " . cf::to_json \%msg);	2565	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2566	}
		2567	}
		2568
		2569	=item $client->ext_reply ($msgid, @msg)
		2570
		2571	Sends an ext reply to the client.
		2572
		2573	=cut
		2574
		2575	sub cf::client::ext_reply($$@) {
		2576	my ($self, $id, @msg) = @_;
		2577
		2578	if ($self->extcmd == 2) {
		2579	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2580	} elsif ($self->ns->extcmd == 1) {
		2581	#TODO: version 1, remove
		2582	unshift @msg, msgtype => "reply", msgid => $id;
		2583	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2584	}
2085	}	2585	}
2086		2586
2087	=item $success = $client->query ($flags, "text", \&cb)	2587	=item $success = $client->query ($flags, "text", \&cb)
2088		2588
2089	Queues a query to the client, calling the given callback with	2589	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>,	2590	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>.	2591	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2092		2592
2093	Queries can fail, so check the return code. Or don't, as queries will become	2593	Queries can fail, so check the return code. Or don't, as queries will
2094	reliable at some point in the future.	2594	become reliable at some point in the future.
2095		2595
2096	=cut	2596	=cut
2097		2597
2098	sub cf::client::query {	2598	sub cf::client::query {
2099	my ($self, $flags, $text, $cb) = @_;	2599	my ($self, $flags, $text, $cb) = @_;
…		…
2107	utf8::encode $text;	2607	utf8::encode $text;
2108	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2608	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2109		2609
2110	$self->send_packet ($self->{query_queue}[0][0])	2610	$self->send_packet ($self->{query_queue}[0][0])
2111	if @{ $self->{query_queue} } == 1;	2611	if @{ $self->{query_queue} } == 1;
		2612
		2613	1
2112	}	2614	}
2113		2615
2114	cf::client->attach (	2616	cf::client->attach (
		2617	on_connect => sub {
		2618	my ($ns) = @_;
		2619
		2620	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2621	},
2115	on_reply => sub {	2622	on_reply => sub {
2116	my ($ns, $msg) = @_;	2623	my ($ns, $msg) = @_;
2117		2624
2118	# this weird shuffling is so that direct followup queries	2625	# this weird shuffling is so that direct followup queries
2119	# get handled first	2626	# get handled first
…		…
2131	} else {	2638	} else {
2132	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2639	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2133	}	2640	}
2134	}	2641	}
2135	},	2642	},
		2643	on_exticmd => sub {
		2644	my ($ns, $buf) = @_;
		2645
		2646	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2647
		2648	if (ref $msg) {
		2649	my ($type, $reply, @payload) =
		2650	"ARRAY" eq ref $msg
		2651	? @$msg
		2652	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2653
		2654	my @reply;
		2655
		2656	if (my $cb = $EXTICMD{$type}) {
		2657	@reply = $cb->($ns, @payload);
		2658	}
		2659
		2660	$ns->ext_reply ($reply, @reply)
		2661	if $reply;
		2662
		2663	} else {
		2664	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2665	}
		2666
		2667	cf::override;
		2668	},
2136	);	2669	);
2137		2670
2138	=item $client->async (\&cb)	2671	=item $client->async (\&cb)
2139		2672
2140	Create a new coroutine, running the specified callback. The coroutine will	2673	Create a new coroutine, running the specified callback. The coroutine will
…		…
2181	our $safe = new Safe "safe";	2714	our $safe = new Safe "safe";
2182	our $safe_hole = new Safe::Hole;	2715	our $safe_hole = new Safe::Hole;
2183		2716
2184	$SIG{FPE} = 'IGNORE';	2717	$SIG{FPE} = 'IGNORE';
2185		2718
2186	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2719	$safe->permit_only (Opcode::opset qw(
		2720	:base_core :base_mem :base_orig :base_math
		2721	grepstart grepwhile mapstart mapwhile
		2722	sort time
		2723	));
2187		2724
2188	# here we export the classes and methods available to script code	2725	# here we export the classes and methods available to script code
2189		2726
2190	=pod	2727	=pod
2191		2728
2192	The following functions and methods are available within a safe environment:	2729	The following functions and methods are available within a safe environment:
2193		2730
2194	cf::object contr pay_amount pay_player map	2731	cf::object
		2732	contr pay_amount pay_player map x y force_find force_add
		2733	insert remove name archname title slaying race
		2734
2195	cf::object::player player	2735	cf::object::player
2196	cf::player peaceful	2736	player
2197	cf::map trigger	2737
		2738	cf::player
		2739	peaceful
		2740
		2741	cf::map
		2742	trigger
2198		2743
2199	=cut	2744	=cut
2200		2745
2201	for (	2746	for (
2202	["cf::object" => qw(contr pay_amount pay_player map)],	2747	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2748	insert remove inv name archname title slaying race)],
2203	["cf::object::player" => qw(player)],	2749	["cf::object::player" => qw(player)],
2204	["cf::player" => qw(peaceful)],	2750	["cf::player" => qw(peaceful)],
2205	["cf::map" => qw(trigger)],	2751	["cf::map" => qw(trigger)],
2206	) {	2752	) {
2207	no strict 'refs';	2753	no strict 'refs';
…		…
2278	=back	2824	=back
2279		2825
2280	=cut	2826	=cut
2281		2827
2282	#############################################################################	2828	#############################################################################
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 $@;
2449	_exit 0;
2450	}
2451	}
2452
2453
2454
2455	#############################################################################
2456	# the server's init and main functions	2829	# the server's init and main functions
2457		2830
2458	sub load_facedata($) {	2831	sub load_facedata($) {
2459	my ($path) = @_;	2832	my ($path) = @_;
		2833
		2834	my $enc = JSON::XS->new->utf8->canonical;
2460		2835
2461	warn "loading facedata from $path\n";	2836	warn "loading facedata from $path\n";
2462		2837
2463	my $facedata;	2838	my $facedata;
2464	0 < aio_load $path, $facedata	2839	0 < aio_load $path, $facedata
…		…
2467	$facedata = Coro::Storable::thaw $facedata;	2842	$facedata = Coro::Storable::thaw $facedata;
2468		2843
2469	$facedata->{version} == 2	2844	$facedata->{version} == 2
2470	or cf::cleanup "$path: version mismatch, cannot proceed.";	2845	or cf::cleanup "$path: version mismatch, cannot proceed.";
2471		2846
		2847	# patch in the exptable
		2848	$facedata->{resource}{"res/exp_table"} = {
		2849	type => FT_RSRC,
		2850	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		2851	};
		2852	cf::cede_to_tick;
		2853
2472	{	2854	{
2473	my $faces = $facedata->{faceinfo};	2855	my $faces = $facedata->{faceinfo};
2474		2856
2475	while (my ($face, $info) = each %$faces) {	2857	while (my ($face, $info) = each %$faces) {
2476	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2858	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2477	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2859	cf::face::set_visibility $idx, $info->{visibility};
		2860	cf::face::set_magicmap $idx, $info->{magicmap};
2478	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2861	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2479	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2862	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2480	Coro::cede;	2863
		2864	cf::cede_to_tick;
2481	}	2865	}
2482		2866
2483	while (my ($face, $info) = each %$faces) {	2867	while (my ($face, $info) = each %$faces) {
2484	next unless $info->{smooth};	2868	next unless $info->{smooth};
2485	my $idx = cf::face::find $face	2869	my $idx = cf::face::find $face
2486	or next;	2870	or next;
2487	if (my $smooth = cf::face::find $info->{smooth}) {	2871	if (my $smooth = cf::face::find $info->{smooth}) {
		2872	cf::face::set_smooth $idx, $smooth;
2488	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2873	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2489	} else {	2874	} else {
2490	warn "smooth face '$info->{smooth}' not found for face '$face'";	2875	warn "smooth face '$info->{smooth}' not found for face '$face'";
2491	}	2876	}
2492	Coro::cede;	2877
		2878	cf::cede_to_tick;
2493	}	2879	}
2494	}	2880	}
2495		2881
2496	{	2882	{
2497	my $anims = $facedata->{animinfo};	2883	my $anims = $facedata->{animinfo};
2498		2884
2499	while (my ($anim, $info) = each %$anims) {	2885	while (my ($anim, $info) = each %$anims) {
2500	cf::anim::set $anim, $info->{frames}, $info->{facings};	2886	cf::anim::set $anim, $info->{frames}, $info->{facings};
2501	Coro::cede;	2887	cf::cede_to_tick;
2502	}	2888	}
2503		2889
2504	cf::anim::invalidate_all; # d'oh	2890	cf::anim::invalidate_all; # d'oh
2505	}	2891	}
2506		2892
		2893	{
		2894	# TODO: for gcfclient pleasure, we should give resources
		2895	# that gcfclient doesn't grok a >10000 face index.
		2896	my $res = $facedata->{resource};
		2897
		2898	my $soundconf = delete $res->{"res/sound.conf"};
		2899
		2900	while (my ($name, $info) = each %$res) {
		2901	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2902	my $data;
		2903
		2904	if ($info->{type} & 1) {
		2905	# prepend meta info
		2906
		2907	my $meta = $enc->encode ({
		2908	name => $name,
		2909	%{ $info->{meta} || {} },
		2910	});
		2911
		2912	$data = pack "(w/a*)*", $meta, $info->{data};
		2913	} else {
		2914	$data = $info->{data};
		2915	}
		2916
		2917	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2918	cf::face::set_type $idx, $info->{type};
		2919
		2920	cf::cede_to_tick;
		2921	}
		2922
		2923	if ($soundconf) {
		2924	$soundconf = $enc->decode (delete $soundconf->{data});
		2925
		2926	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2927	my $sound = $soundconf->{compat}[$_]
		2928	or next;
		2929
		2930	my $face = cf::face::find "sound/$sound->[1]";
		2931	cf::sound::set $sound->[0] => $face;
		2932	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2933	}
		2934
		2935	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2936	my $face = cf::face::find "sound/$v";
		2937	cf::sound::set $k => $face;
		2938	}
		2939	}
		2940	}
		2941
2507	1	2942	1
2508	}	2943	}
		2944
		2945	register_exticmd fx_want => sub {
		2946	my ($ns, $want) = @_;
		2947
		2948	while (my ($k, $v) = each %$want) {
		2949	$ns->fx_want ($k, $v);
		2950	}
		2951	};
2509		2952
2510	sub reload_regions {	2953	sub reload_regions {
2511	load_resource_file "$MAPDIR/regions"	2954	load_resource_file "$MAPDIR/regions"
2512	or die "unable to load regions file\n";	2955	or die "unable to load regions file\n";
		2956
		2957	for (cf::region::list) {
		2958	$_->{match} = qr/$_->{match}/
		2959	if exists $_->{match};
		2960	}
2513	}	2961	}
2514		2962
2515	sub reload_facedata {	2963	sub reload_facedata {
2516	load_facedata "$DATADIR/facedata"	2964	load_facedata "$DATADIR/facedata"
2517	or die "unable to load facedata\n";	2965	or die "unable to load facedata\n";
2518	}	2966	}
2519		2967
2520	sub reload_archetypes {	2968	sub reload_archetypes {
2521	load_resource_file "$DATADIR/archetypes"	2969	load_resource_file "$DATADIR/archetypes"
2522	or die "unable to load archetypes\n";	2970	or die "unable to load archetypes\n";
		2971	#d# NEED to laod twice to resolve forward references
		2972	# this really needs to be done in an extra post-pass
		2973	# (which needs to be synchronous, so solve it differently)
		2974	load_resource_file "$DATADIR/archetypes"
		2975	or die "unable to load archetypes\n";
2523	}	2976	}
2524		2977
2525	sub reload_treasures {	2978	sub reload_treasures {
2526	load_resource_file "$DATADIR/treasures"	2979	load_resource_file "$DATADIR/treasures"
2527	or die "unable to load treasurelists\n";	2980	or die "unable to load treasurelists\n";
…		…
2530	sub reload_resources {	2983	sub reload_resources {
2531	warn "reloading resource files...\n";	2984	warn "reloading resource files...\n";
2532		2985
2533	reload_regions;	2986	reload_regions;
2534	reload_facedata;	2987	reload_facedata;
		2988	#reload_archetypes;#d#
2535	reload_archetypes;	2989	reload_archetypes;
2536	reload_treasures;	2990	reload_treasures;
2537		2991
2538	warn "finished reloading resource files\n";	2992	warn "finished reloading resource files\n";
2539	}	2993	}
…		…
2596	},	3050	},
2597	);	3051	);
2598	}	3052	}
2599	}	3053	}
2600		3054
		3055	sub write_runtime {
		3056	my $runtime = "$LOCALDIR/runtime";
		3057
		3058	# first touch the runtime file to show we are still running:
		3059	# the fsync below can take a very very long time.
		3060
		3061	IO::AIO::aio_utime $runtime, undef, undef;
		3062
		3063	my $guard = cf::lock_acquire "write_runtime";
		3064
		3065	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3066	or return;
		3067
		3068	my $value = $cf::RUNTIME + 90 + 10;
		3069	# 10 is the runtime save interval, for a monotonic clock
		3070	# 60 allows for the watchdog to kill the server.
		3071
		3072	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3073	and return;
		3074
		3075	# always fsync - this file is important
		3076	aio_fsync $fh
		3077	and return;
		3078
		3079	# touch it again to show we are up-to-date
		3080	aio_utime $fh, undef, undef;
		3081
		3082	close $fh
		3083	or return;
		3084
		3085	aio_rename "$runtime~", $runtime
		3086	and return;
		3087
		3088	warn "runtime file written.\n";
		3089
		3090	1
		3091	}
		3092
2601	sub emergency_save() {	3093	sub emergency_save() {
2602	my $freeze_guard = cf::freeze_mainloop;	3094	my $freeze_guard = cf::freeze_mainloop;
2603		3095
2604	warn "enter emergency perl save\n";	3096	warn "enter emergency perl save\n";
2605		3097
…		…
2680	%EXT_CORO = ();	3172	%EXT_CORO = ();
2681		3173
2682	warn "removing commands";	3174	warn "removing commands";
2683	%COMMAND = ();	3175	%COMMAND = ();
2684		3176
2685	warn "removing ext commands";	3177	warn "removing ext/exti commands";
2686	%EXTCMD = ();	3178	%EXTCMD = ();
		3179	%EXTICMD = ();
2687		3180
2688	warn "unloading/nuking all extensions";	3181	warn "unloading/nuking all extensions";
2689	for my $pkg (@EXTS) {	3182	for my $pkg (@EXTS) {
2690	warn "... unloading $pkg";	3183	warn "... unloading $pkg";
2691		3184
…		…
2809	my $signal = new Coro::Signal;	3302	my $signal = new Coro::Signal;
2810	push @WAIT_FOR_TICK_BEGIN, $signal;	3303	push @WAIT_FOR_TICK_BEGIN, $signal;
2811	$signal->wait;	3304	$signal->wait;
2812	}	3305	}
2813		3306
		3307	my $min = 1e6;#d#
		3308	my $avg = 10;
2814	$TICK_WATCHER = Event->timer (	3309	$TICK_WATCHER = Event->timer (
2815	reentrant => 0,	3310	reentrant => 0,
2816	parked => 1,	3311	parked => 1,
2817	prio => 0,	3312	prio => 0,
2818	at => $NEXT_TICK || $TICK,	3313	at => $NEXT_TICK || $TICK,
…		…
2822	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3317	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2823	unless ++$bug_warning > 10;	3318	unless ++$bug_warning > 10;
2824	return;	3319	return;
2825	}	3320	}
2826		3321
2827	$NOW = Event::time;	3322	$NOW = $tick_start = Event::time;
2828		3323
2829	cf::server_tick; # one server iteration	3324	cf::server_tick; # one server iteration
		3325
		3326	0 && sync_job {#d#
		3327	for(1..10) {
		3328	my $t = Event::time;
		3329	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3330	or die;
		3331
		3332	$map->width (50);
		3333	$map->height (50);
		3334	$map->alloc;
		3335	$map->_load_objects ("/tmp/x.map", 1);
		3336	my $t = Event::time - $t;
		3337
		3338	#next unless $t < 0.0013;#d#
		3339	if ($t < $min) {
		3340	$min = $t;
		3341	}
		3342	$avg = $avg * 0.99 + $t * 0.01;
		3343	}
		3344	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3345	exit 0;
		3346	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3347	};
2830		3348
2831	$RUNTIME += $TICK;	3349	$RUNTIME += $TICK;
2832	$NEXT_TICK += $TICK;	3350	$NEXT_TICK += $TICK;
2833		3351
2834	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3352	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2840	}	3358	}
2841		3359
2842	# my $AFTER = Event::time;	3360	# my $AFTER = Event::time;
2843	# warn $AFTER - $NOW;#d#	3361	# warn $AFTER - $NOW;#d#
2844		3362
		3363	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3364	$sig->send;
		3365	}
		3366	while (my $sig = shift @WAIT_FOR_TICK) {
		3367	$sig->send;
		3368	}
		3369
		3370	$NOW = Event::time;
		3371
2845	# if we are delayed by four ticks or more, skip them all	3372	# if we are delayed by four ticks or more, skip them all
2846	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3373	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2847		3374
2848	$TICK_WATCHER->at ($NEXT_TICK);	3375	$TICK_WATCHER->at ($NEXT_TICK);
2849	$TICK_WATCHER->start;	3376	$TICK_WATCHER->start;
2850		3377
2851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3378	$LOAD = ($NOW - $tick_start) / $TICK;
2852	$sig->send;	3379	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2853	}
2854	while (my $sig = shift @WAIT_FOR_TICK) {
2855	$sig->send;
2856	}
2857		3380
2858	_post_tick;	3381	_post_tick;
		3382
		3383
2859	},	3384	},
2860	);	3385	);
2861		3386
2862	{	3387	{
2863	BDB::max_poll_time $TICK * 0.1;	3388	BDB::max_poll_time $TICK * 0.1;
…		…
2922	prio => 6,	3447	prio => 6,
2923	cb => \&IO::AIO::poll_cb,	3448	cb => \&IO::AIO::poll_cb,
2924	);	3449	);
2925	}	3450	}
2926		3451
		3452	my $_log_backtrace;
		3453
		3454	sub _log_backtrace {
		3455	my ($msg, @addr) = @_;
		3456
		3457	$msg =~ s/\n//;
		3458
		3459	# limit the # of concurrent backtraces
		3460	if ($_log_backtrace < 2) {
		3461	++$_log_backtrace;
		3462	async {
		3463	my @bt = fork_call {
		3464	@addr = map { sprintf "%x", $_ } @addr;
		3465	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3466	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3467	or die "addr2line: $!";
		3468
		3469	my @funcs;
		3470	my @res = <$fh>;
		3471	chomp for @res;
		3472	while (@res) {
		3473	my ($func, $line) = splice @res, 0, 2, ();
		3474	push @funcs, "[$func] $line";
		3475	}
		3476
		3477	@funcs
		3478	};
		3479
		3480	LOG llevInfo, "[ABT] $msg\n";
		3481	LOG llevInfo, "[ABT] $_\n" for @bt;
		3482	--$_log_backtrace;
		3483	};
		3484	} else {
		3485	LOG llevInfo, "[ABT] $msg\n";
		3486	LOG llevInfo, "[ABT] [suppressed]\n";
		3487	}
		3488	}
		3489
2927	# load additional modules	3490	# load additional modules
2928	use cf::pod;	3491	use cf::pod;
2929		3492
2930	END { cf::emergency_save }	3493	END { cf::emergency_save }
2931		3494

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