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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 1.336 by root, Tue Aug 21 00:31:18 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($$@) {
1161	my ($self, $id, %msg) = @_;	1508	my ($self, $id, @msg) = @_;
1162		1509
1163	$msg{msgid} = $id;	1510	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1511	}
1167		1512
1168	=item $player->ext_event ($type, %msg)	1513	=item $player->ext_msg ($type, @msg)
1169		1514
1170	Sends an ext event to the client.	1515	Sends an ext event to the client.
1171		1516
1172	=cut	1517	=cut
1173		1518
1174	sub ext_event($$%) {	1519	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1520	my ($self, $type, @msg) = @_;
1176		1521
1177	$self->ns->ext_event ($type, %msg);	1522	$self->ns->ext_msg ($type, @msg);
1178	}	1523	}
1179		1524
1180	=head3 cf::region	1525	=head3 cf::region
1181		1526
1182	=over 4	1527	=over 4
…		…
1185		1530
1186	package cf::region;	1531	package cf::region;
1187		1532
1188	=item cf::region::find_by_path $path	1533	=item cf::region::find_by_path $path
1189		1534
1190	Tries to decuce the probable region for a map knowing only its path.	1535	Tries to decuce the likely region for a map knowing only its path.
1191		1536
1192	=cut	1537	=cut
1193		1538
1194	sub find_by_path($) {	1539	sub find_by_path($) {
1195	my ($path) = @_;	1540	my ($path) = @_;
1196		1541
1197	my ($match, $specificity);	1542	my ($match, $specificity);
1198		1543
1199	for my $region (list) {	1544	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1545	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1546	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1547	if $region->specificity > $specificity;
1203	}	1548	}
1204	}	1549	}
1205		1550
…		…
1269	my ($self, $merge) = @_;	1614	my ($self, $merge) = @_;
1270		1615
1271	# we have to keep some variables in memory intact	1616	# we have to keep some variables in memory intact
1272	local $self->{path};	1617	local $self->{path};
1273	local $self->{load_path};	1618	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1619
1277	$self->SUPER::thawer_merge ($merge);	1620	$self->SUPER::thawer_merge ($merge);
1278	}	1621	}
1279		1622
1280	sub normalise {	1623	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1670	$self->init; # pass $1 etc.
1328	return $self;	1671	return $self;
1329	}	1672	}
1330	}	1673	}
1331		1674
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1675	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1676	()
1334	}	1677	}
1335		1678
1336	sub init {	1679	sub init {
1337	my ($self) = @_;	1680	my ($self) = @_;
…		…
1378	sub change_all_map_light {	1721	sub change_all_map_light {
1379	my ($change) = @_;	1722	my ($change) = @_;
1380		1723
1381	$_->change_map_light ($change)	1724	$_->change_map_light ($change)
1382	for grep $_->outdoor, values %cf::MAP;	1725	for grep $_->outdoor, values %cf::MAP;
		1726	}
		1727
		1728	sub decay_objects {
		1729	my ($self) = @_;
		1730
		1731	return if $self->{deny_reset};
		1732
		1733	$self->do_decay_objects;
1383	}	1734	}
1384		1735
1385	sub unlink_save {	1736	sub unlink_save {
1386	my ($self) = @_;	1737	my ($self) = @_;
1387		1738
…		…
1445	$self->load_header_orig	1796	$self->load_header_orig
1446	or return;	1797	or return;
1447	$self->prepare_orig;	1798	$self->prepare_orig;
1448	}	1799	}
1449		1800
		1801	$self->{deny_reset} = 1
		1802	if $self->no_reset;
		1803
1450	$self->default_region (cf::region::find_by_path $self->{path})	1804	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1805	unless $self->default_region;
1452		1806
1453	1	1807	1
1454	}	1808	}
…		…
1469	$map->{last_save} = $cf::RUNTIME;	1823	$map->{last_save} = $cf::RUNTIME;
1470		1824
1471	$map->load_header	1825	$map->load_header
1472	or return;	1826	or return;
1473		1827
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1828	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1829	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1830	#$cf::WAIT_FOR_TICK->wait;
1477	$map->reset;	1831	$map->reset;
1478	undef $guard;	1832	undef $guard;
1479	return find $path;	1833	return find $path;
…		…
1490	my ($self) = @_;	1844	my ($self) = @_;
1491		1845
1492	local $self->{deny_reset} = 1; # loading can take a long time	1846	local $self->{deny_reset} = 1; # loading can take a long time
1493		1847
1494	my $path = $self->{path};	1848	my $path = $self->{path};
		1849
		1850	{
1495	my $guard = cf::lock_acquire "map_load:$path";	1851	my $guard = cf::lock_acquire "map_load:$path";
1496		1852
1497	return if $self->in_memory != cf::MAP_SWAPPED;	1853	return if $self->in_memory != cf::MAP_SWAPPED;
1498		1854
1499	$self->in_memory (cf::MAP_LOADING);	1855	$self->in_memory (cf::MAP_LOADING);
1500		1856
1501	$self->alloc;	1857	$self->alloc;
1502		1858
1503	$self->pre_load;	1859	$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;	1860	Coro::cede;
1530	$self->set_darkness_map;	1861
		1862	$self->_load_objects ($self->{load_path}, 1)
		1863	or return;
		1864
		1865	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1866	if delete $self->{load_original};
		1867
		1868	if (my $uniq = $self->uniq_path) {
		1869	utf8::encode $uniq;
		1870	if (aio_open $uniq, O_RDONLY, 0) {
		1871	$self->clear_unique_items;
		1872	$self->_load_objects ($uniq, 0);
		1873	}
		1874	}
		1875
		1876	Coro::cede;
		1877	# now do the right thing for maps
		1878	$self->link_multipart_objects;
1531	$self->difficulty ($self->estimate_difficulty)	1879	$self->difficulty ($self->estimate_difficulty)
1532	unless $self->difficulty;	1880	unless $self->difficulty;
1533	Coro::cede;	1881	Coro::cede;
		1882
		1883	unless ($self->{deny_activate}) {
		1884	$self->decay_objects;
		1885	$self->fix_auto_apply;
		1886	$self->update_buttons;
		1887	Coro::cede;
		1888	$self->set_darkness_map;
		1889	Coro::cede;
1534	$self->activate;	1890	$self->activate;
1535	Coro::cede;	1891	}
		1892
		1893	$self->{last_save} = $cf::RUNTIME;
		1894	$self->last_access ($cf::RUNTIME);
		1895
		1896	$self->in_memory (cf::MAP_IN_MEMORY);
1536	}	1897	}
1537		1898
1538	$self->post_load;	1899	$self->post_load;
1539	Coro::cede;
1540
1541	$self->in_memory (cf::MAP_IN_MEMORY);
1542	}	1900	}
1543		1901
1544	sub customise_for {	1902	sub customise_for {
1545	my ($self, $ob) = @_;	1903	my ($self, $ob) = @_;
1546		1904
1547	return find "~" . $ob->name . "/" . $self->{path}	1905	return find "~" . $ob->name . "/" . $self->{path}
1548	if $self->per_player;	1906	if $self->per_player;
1549		1907
		1908	# return find "?party/" . $ob->name . "/" . $self->{path}
		1909	# if $self->per_party;
		1910
1550	$self	1911	$self
1551	}	1912	}
1552		1913
1553	# find and load all maps in the 3x3 area around a map	1914	# find and load all maps in the 3x3 area around a map
1554	sub load_diag {	1915	sub load_neighbours {
1555	my ($map) = @_;	1916	my ($map) = @_;
1556		1917
1557	my @diag; # diagonal neighbours	1918	my @neigh; # diagonal neighbours
1558		1919
1559	for (0 .. 3) {	1920	for (0 .. 3) {
1560	my $neigh = $map->tile_path ($_)	1921	my $neigh = $map->tile_path ($_)
1561	or next;	1922	or next;
1562	$neigh = find $neigh, $map	1923	$neigh = find $neigh, $map
1563	or next;	1924	or next;
1564	$neigh->load;	1925	$neigh->load;
1565		1926
		1927	push @neigh,
1566	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1928	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1567	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1929	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1568	}	1930	}
1569		1931
1570	for (@diag) {	1932	for (grep defined $_->[0], @neigh) {
		1933	my ($path, $origin) = @$_;
1571	my $neigh = find @$_	1934	my $neigh = find $path, $origin
1572	or next;	1935	or next;
1573	$neigh->load;	1936	$neigh->load;
1574	}	1937	}
1575	}	1938	}
1576		1939
…		…
1600		1963
1601	undef $MAP_PREFETCH{$path};	1964	undef $MAP_PREFETCH{$path};
1602	$MAP_PREFETCHER ||= cf::async {	1965	$MAP_PREFETCHER ||= cf::async {
1603	while (%MAP_PREFETCH) {	1966	while (%MAP_PREFETCH) {
1604	for my $path (keys %MAP_PREFETCH) {	1967	for my $path (keys %MAP_PREFETCH) {
1605	my $map = find $path	1968	if (my $map = find $path) {
1606	or next;
1607	$map->load;	1969	$map->load;
		1970	}
1608		1971
1609	delete $MAP_PREFETCH{$path};	1972	delete $MAP_PREFETCH{$path};
1610	}	1973	}
1611	}	1974	}
1612	undef $MAP_PREFETCHER;	1975	undef $MAP_PREFETCHER;
…		…
1664		2027
1665	sub reset_at {	2028	sub reset_at {
1666	my ($self) = @_;	2029	my ($self) = @_;
1667		2030
1668	# TODO: safety, remove and allow resettable per-player maps	2031	# 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};	2032	return 1e99 if $self->{deny_reset};
1671		2033
1672	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2034	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1673	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2035	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1674		2036
…		…
1685	my ($self) = @_;	2047	my ($self) = @_;
1686		2048
1687	my $lock = cf::lock_acquire "map_data:$self->{path}";	2049	my $lock = cf::lock_acquire "map_data:$self->{path}";
1688		2050
1689	return if $self->players;	2051	return if $self->players;
1690	return if $self->isa ("ext::map_per_player");#d#
1691		2052
1692	warn "resetting map ", $self->path;#d#	2053	warn "resetting map ", $self->path;
1693		2054
1694	$self->in_memory (cf::MAP_SWAPPED);	2055	$self->in_memory (cf::MAP_SWAPPED);
1695		2056
1696	# need to save uniques path	2057	# need to save uniques path
1697	unless ($self->{deny_save}) {	2058	unless ($self->{deny_save}) {
…		…
1729	$cf::MAP{$self->path} = $self;	2090	$cf::MAP{$self->path} = $self;
1730		2091
1731	$self->reset; # polite request, might not happen	2092	$self->reset; # polite request, might not happen
1732	}	2093	}
1733		2094
		2095	=item $maps = cf::map::tmp_maps
		2096
		2097	Returns an arrayref with all map paths of currently instantiated and saved
		2098	maps. May block.
		2099
		2100	=cut
		2101
		2102	sub tmp_maps() {
		2103	[
		2104	map {
		2105	utf8::decode $_;
		2106	/\.map$/
		2107	? normalise $_
		2108	: ()
		2109	} @{ aio_readdir $TMPDIR or [] }
		2110	]
		2111	}
		2112
		2113	=item $maps = cf::map::random_maps
		2114
		2115	Returns an arrayref with all map paths of currently instantiated and saved
		2116	random maps. May block.
		2117
		2118	=cut
		2119
		2120	sub random_maps() {
		2121	[
		2122	map {
		2123	utf8::decode $_;
		2124	/\.map$/
		2125	? normalise "?random/$_"
		2126	: ()
		2127	} @{ aio_readdir $RANDOMDIR or [] }
		2128	]
		2129	}
		2130
1734	=item cf::map::unique_maps	2131	=item cf::map::unique_maps
1735		2132
1736	Returns an arrayref of paths of all shared maps that have	2133	Returns an arrayref of paths of all shared maps that have
1737	instantiated unique items. May block.	2134	instantiated unique items. May block.
1738		2135
1739	=cut	2136	=cut
1740		2137
1741	sub unique_maps() {	2138	sub unique_maps() {
1742	my $files = aio_readdir $UNIQUEDIR	2139	[
1743	or return;	2140	map {
1744
1745	my @paths;
1746
1747	for (@$files) {
1748	utf8::decode $_;	2141	utf8::decode $_;
1749	next if /\.pst$/;	2142	/\.map$/
1750	next unless /^$PATH_SEP/o;	2143	? normalise $_
1751		2144	: ()
1752	push @paths, cf::map::normalise $_;	2145	} @{ aio_readdir $UNIQUEDIR or [] }
1753	}	2146	]
1754
1755	\@paths
1756	}	2147	}
1757		2148
1758	package cf;	2149	package cf;
1759		2150
1760	=back	2151	=back
…		…
1806		2197
1807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2198	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1808		2199
1809	if ($self->{record_replies}) {	2200	if ($self->{record_replies}) {
1810	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2201	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2202
1811	} else {	2203	} else {
		2204	my $pl = $self->contr;
		2205
		2206	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2207	my $dialog = $pl->{npc_dialog};
		2208	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2209
		2210	} else {
1812	$msg = $npc->name . " says: $msg" if $npc;	2211	$msg = $npc->name . " says: $msg" if $npc;
1813	$self->message ($msg, $flags);	2212	$self->message ($msg, $flags);
		2213	}
1814	}	2214	}
		2215	}
		2216
		2217	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2218
		2219	=cut
		2220
		2221	sub cf::object::send_msg {
		2222	my $pl = shift->contr
		2223	or return;
		2224	$pl->send_msg (@_);
1815	}	2225	}
1816		2226
1817	=item $player_object->may ("access")	2227	=item $player_object->may ("access")
1818		2228
1819	Returns wether the given player is authorized to access resource "access"	2229	Returns wether the given player is authorized to access resource "access"
…		…
1866	$self->deactivate_recursive;	2276	$self->deactivate_recursive;
1867		2277
1868	return if UNIVERSAL::isa $self->map, "ext::map_link";	2278	return if UNIVERSAL::isa $self->map, "ext::map_link";
1869		2279
1870	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2280	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1871	if $self->map;	2281	if $self->map && $self->map->{path} ne "{link}";
1872		2282
1873	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2283	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1874	}	2284	}
1875		2285
1876	sub cf::object::player::leave_link {	2286	sub cf::object::player::leave_link {
1877	my ($self, $map, $x, $y) = @_;	2287	my ($self, $map, $x, $y) = @_;
		2288
		2289	return unless $self->contr->active;
1878		2290
1879	my $link_pos = delete $self->{_link_pos};	2291	my $link_pos = delete $self->{_link_pos};
1880		2292
1881	unless ($map) {	2293	unless ($map) {
1882	# restore original map position	2294	# restore original map position
…		…
1896	# use -1 or undef as default coordinates, not 0, 0	2308	# use -1 or undef as default coordinates, not 0, 0
1897	($x, $y) = ($map->enter_x, $map->enter_y)	2309	($x, $y) = ($map->enter_x, $map->enter_y)
1898	if $x <=0 && $y <= 0;	2310	if $x <=0 && $y <= 0;
1899		2311
1900	$map->load;	2312	$map->load;
1901	$map->load_diag;	2313	$map->load_neighbours;
1902		2314
1903	return unless $self->contr->active;	2315	return unless $self->contr->active;
1904	$self->activate_recursive;	2316	$self->activate_recursive;
1905		2317
1906	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2318	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1907	$self->enter_map ($map, $x, $y);	2319	$self->enter_map ($map, $x, $y);
1908	}	2320	}
1909		2321
1910	cf::player->attach (	2322	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1911	on_logout => sub {
1912	my ($pl) = @_;
1913		2323
1914	# abort map switching before logout	2324	Moves the player to the given map-path and coordinates by first freezing
1915	if ($pl->ob->{_link_pos}) {	2325	her, loading and preparing them map, calling the provided $check callback
1916	cf::sync_job {	2326	that has to return the map if sucecssful, and then unfreezes the player on
1917	$pl->ob->leave_link	2327	the new (success) or old (failed) map position. In either case, $done will
1918	};	2328	be called at the end of this process.
1919	}
1920	},
1921	on_login => sub {
1922	my ($pl) = @_;
1923		2329
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	2330	=cut
		2331
		2332	our $GOTOGEN;
1945		2333
1946	sub cf::object::player::goto {	2334	sub cf::object::player::goto {
1947	my ($self, $path, $x, $y) = @_;	2335	my ($self, $path, $x, $y, $check, $done) = @_;
		2336
		2337	# do generation counting so two concurrent goto's will be executed in-order
		2338	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1948		2339
1949	$self->enter_link;	2340	$self->enter_link;
1950		2341
1951	(async {	2342	(async {
1952	my $map = eval {	2343	my $map = eval {
1953	my $map = cf::map::find $path;	2344	my $map = cf::map::find $path;
		2345
		2346	if ($map) {
1954	$map = $map->customise_for ($self) if $map;	2347	$map = $map->customise_for ($self);
		2348	$map = $check->($map) if $check && $map;
		2349	} else {
		2350	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2351	}
		2352
1955	$map	2353	$map
		2354	};
		2355
		2356	if ($@) {
		2357	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2358	LOG llevError | logBacktrace, Carp::longmess $@;
1956	} or	2359	}
1957	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1958		2360
		2361	if ($gen == $self->{_goto_generation}) {
		2362	delete $self->{_goto_generation};
1959	$self->leave_link ($map, $x, $y);	2363	$self->leave_link ($map, $x, $y);
		2364	}
		2365
		2366	$done->() if $done;
1960	})->prio (1);	2367	})->prio (1);
1961	}	2368	}
1962		2369
1963	=item $player_object->enter_exit ($exit_object)	2370	=item $player_object->enter_exit ($exit_object)
1964		2371
…		…
2033	my $hp = $exit->stats->hp;	2440	my $hp = $exit->stats->hp;
2034	my $sp = $exit->stats->sp;	2441	my $sp = $exit->stats->sp;
2035		2442
2036	$self->enter_link;	2443	$self->enter_link;
2037		2444
		2445	# if exit is damned, update players death & WoR home-position
		2446	$self->contr->savebed ($slaying, $hp, $sp)
		2447	if $exit->flag (FLAG_DAMNED);
		2448
2038	(async {	2449	(async {
2039	$self->deactivate_recursive; # just to be sure	2450	$self->deactivate_recursive; # just to be sure
2040	unless (eval {	2451	unless (eval {
2041	$self->goto ($slaying, $hp, $sp);	2452	$self->goto ($slaying, $hp, $sp);
2042		2453
…		…
2069		2480
2070	utf8::encode $text;	2481	utf8::encode $text;
2071	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2482	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2072	}	2483	}
2073		2484
		2485	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2486
		2487	Send a drawinfo or msg packet to the client, formatting the msg for the
		2488	client if neccessary. C<$type> should be a string identifying the type of
		2489	the message, with C<log> being the default. If C<$color> is negative, suppress
		2490	the message unless the client supports the msg packet.
		2491
		2492	=cut
		2493
		2494	sub cf::client::send_msg {
		2495	my ($self, $channel, $msg, $color, @extra) = @_;
		2496
		2497	$msg = $self->pl->expand_cfpod ($msg);
		2498
		2499	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2500
		2501	if (ref $channel) {
		2502	# send meta info to client, if not yet sent
		2503	unless (exists $self->{channel}{$channel->{id}}) {
		2504	$self->{channel}{$channel->{id}} = $channel;
		2505	$self->ext_msg (channel_info => $channel);
		2506	}
		2507
		2508	$channel = $channel->{id};
		2509	}
		2510
		2511	return unless @extra || length $msg;
		2512
		2513	if ($self->can_msg) {
		2514	# default colour, mask it out
		2515	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2516	if $color & cf::NDI_DEF;
		2517
		2518	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2519	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2520	} else {
		2521	if ($color >= 0) {
		2522	# replace some tags by gcfclient-compatible ones
		2523	for ($msg) {
		2524	1 while
		2525	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2526	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2527	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2528	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2529	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2530	}
		2531
		2532	$color &= cf::NDI_COLOR_MASK;
		2533
		2534	utf8::encode $msg;
		2535
		2536	if (0 && $msg =~ /\[/) {
		2537	# COMMAND/INFO
		2538	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2539	} else {
		2540	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2541	$self->send_packet ("drawinfo $color $msg")
		2542	}
		2543	}
		2544	}
		2545	}
		2546
2074	=item $client->ext_event ($type, %msg)	2547	=item $client->ext_msg ($type, @msg)
2075		2548
2076	Sends an exti event to the client.	2549	Sends an ext event to the client.
2077		2550
2078	=cut	2551	=cut
2079		2552
2080	sub cf::client::ext_event($$%) {	2553	sub cf::client::ext_msg($$@) {
2081	my ($self, $type, %msg) = @_;	2554	my ($self, $type, @msg) = @_;
2082		2555
		2556	my $extcmd = $self->extcmd;
		2557
		2558	if ($extcmd == 2) {
		2559	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2560	} elsif ($extcmd == 1) { # TODO: remove
2083	$msg{msgtype} = "event_$type";	2561	push @msg, msgtype => "event_$type";
2084	$self->send_packet ("ext " . cf::to_json \%msg);	2562	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2563	}
		2564	}
		2565
		2566	=item $client->ext_reply ($msgid, @msg)
		2567
		2568	Sends an ext reply to the client.
		2569
		2570	=cut
		2571
		2572	sub cf::client::ext_reply($$@) {
		2573	my ($self, $id, @msg) = @_;
		2574
		2575	if ($self->extcmd == 2) {
		2576	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2577	} elsif ($self->ns->extcmd == 1) {
		2578	#TODO: version 1, remove
		2579	unshift @msg, msgtype => "reply", msgid => $id;
		2580	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2581	}
2085	}	2582	}
2086		2583
2087	=item $success = $client->query ($flags, "text", \&cb)	2584	=item $success = $client->query ($flags, "text", \&cb)
2088		2585
2089	Queues a query to the client, calling the given callback with	2586	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>,	2587	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>.	2588	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2092		2589
2093	Queries can fail, so check the return code. Or don't, as queries will become	2590	Queries can fail, so check the return code. Or don't, as queries will
2094	reliable at some point in the future.	2591	become reliable at some point in the future.
2095		2592
2096	=cut	2593	=cut
2097		2594
2098	sub cf::client::query {	2595	sub cf::client::query {
2099	my ($self, $flags, $text, $cb) = @_;	2596	my ($self, $flags, $text, $cb) = @_;
…		…
2107	utf8::encode $text;	2604	utf8::encode $text;
2108	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2605	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2109		2606
2110	$self->send_packet ($self->{query_queue}[0][0])	2607	$self->send_packet ($self->{query_queue}[0][0])
2111	if @{ $self->{query_queue} } == 1;	2608	if @{ $self->{query_queue} } == 1;
		2609
		2610	1
2112	}	2611	}
2113		2612
2114	cf::client->attach (	2613	cf::client->attach (
		2614	on_connect => sub {
		2615	my ($ns) = @_;
		2616
		2617	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2618	},
2115	on_reply => sub {	2619	on_reply => sub {
2116	my ($ns, $msg) = @_;	2620	my ($ns, $msg) = @_;
2117		2621
2118	# this weird shuffling is so that direct followup queries	2622	# this weird shuffling is so that direct followup queries
2119	# get handled first	2623	# get handled first
…		…
2131	} else {	2635	} else {
2132	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2636	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2133	}	2637	}
2134	}	2638	}
2135	},	2639	},
		2640	on_exticmd => sub {
		2641	my ($ns, $buf) = @_;
		2642
		2643	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2644
		2645	if (ref $msg) {
		2646	my ($type, $reply, @payload) =
		2647	"ARRAY" eq ref $msg
		2648	? @$msg
		2649	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2650
		2651	if (my $cb = $EXTICMD{$type}) {
		2652	my @reply = $cb->($ns, @payload);
		2653
		2654	$ns->ext_reply ($reply, @reply)
		2655	if $reply;
		2656	}
		2657	} else {
		2658	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2659	}
		2660
		2661	cf::override;
		2662	},
2136	);	2663	);
2137		2664
2138	=item $client->async (\&cb)	2665	=item $client->async (\&cb)
2139		2666
2140	Create a new coroutine, running the specified callback. The coroutine will	2667	Create a new coroutine, running the specified callback. The coroutine will
…		…
2181	our $safe = new Safe "safe";	2708	our $safe = new Safe "safe";
2182	our $safe_hole = new Safe::Hole;	2709	our $safe_hole = new Safe::Hole;
2183		2710
2184	$SIG{FPE} = 'IGNORE';	2711	$SIG{FPE} = 'IGNORE';
2185		2712
2186	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2713	$safe->permit_only (Opcode::opset qw(
		2714	:base_core :base_mem :base_orig :base_math
		2715	grepstart grepwhile mapstart mapwhile
		2716	sort time
		2717	));
2187		2718
2188	# here we export the classes and methods available to script code	2719	# here we export the classes and methods available to script code
2189		2720
2190	=pod	2721	=pod
2191		2722
2192	The following functions and methods are available within a safe environment:	2723	The following functions and methods are available within a safe environment:
2193		2724
2194	cf::object contr pay_amount pay_player map	2725	cf::object
		2726	contr pay_amount pay_player map x y force_find force_add
		2727	insert remove name archname title slaying race
		2728
2195	cf::object::player player	2729	cf::object::player
2196	cf::player peaceful	2730	player
2197	cf::map trigger	2731
		2732	cf::player
		2733	peaceful
		2734
		2735	cf::map
		2736	trigger
2198		2737
2199	=cut	2738	=cut
2200		2739
2201	for (	2740	for (
2202	["cf::object" => qw(contr pay_amount pay_player map)],	2741	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2742	insert remove inv name archname title slaying race)],
2203	["cf::object::player" => qw(player)],	2743	["cf::object::player" => qw(player)],
2204	["cf::player" => qw(peaceful)],	2744	["cf::player" => qw(peaceful)],
2205	["cf::map" => qw(trigger)],	2745	["cf::map" => qw(trigger)],
2206	) {	2746	) {
2207	no strict 'refs';	2747	no strict 'refs';
…		…
2278	=back	2818	=back
2279		2819
2280	=cut	2820	=cut
2281		2821
2282	#############################################################################	2822	#############################################################################
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 $@;
2449	_exit 0;
2450	}
2451	}
2452
2453
2454
2455	#############################################################################
2456	# the server's init and main functions	2823	# the server's init and main functions
2457		2824
2458	sub load_facedata($) {	2825	sub load_facedata($) {
2459	my ($path) = @_;	2826	my ($path) = @_;
		2827
		2828	my $enc = JSON::XS->new->utf8->canonical;
2460		2829
2461	warn "loading facedata from $path\n";	2830	warn "loading facedata from $path\n";
2462		2831
2463	my $facedata;	2832	my $facedata;
2464	0 < aio_load $path, $facedata	2833	0 < aio_load $path, $facedata
…		…
2467	$facedata = Coro::Storable::thaw $facedata;	2836	$facedata = Coro::Storable::thaw $facedata;
2468		2837
2469	$facedata->{version} == 2	2838	$facedata->{version} == 2
2470	or cf::cleanup "$path: version mismatch, cannot proceed.";	2839	or cf::cleanup "$path: version mismatch, cannot proceed.";
2471		2840
		2841	# patch in the exptable
		2842	$facedata->{resource}{"res/exp_table"} = {
		2843	type => FT_RSRC,
		2844	data => $enc->encode ([map cf::level_to_min_exp $_, 0 .. cf::settings->max_level]),
		2845	};
		2846	cf::cede_to_tick;
		2847
2472	{	2848	{
2473	my $faces = $facedata->{faceinfo};	2849	my $faces = $facedata->{faceinfo};
2474		2850
2475	while (my ($face, $info) = each %$faces) {	2851	while (my ($face, $info) = each %$faces) {
2476	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2852	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2477	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2853	cf::face::set_visibility $idx, $info->{visibility};
		2854	cf::face::set_magicmap $idx, $info->{magicmap};
2478	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2855	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2479	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2856	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2480	Coro::cede;	2857
		2858	cf::cede_to_tick;
2481	}	2859	}
2482		2860
2483	while (my ($face, $info) = each %$faces) {	2861	while (my ($face, $info) = each %$faces) {
2484	next unless $info->{smooth};	2862	next unless $info->{smooth};
2485	my $idx = cf::face::find $face	2863	my $idx = cf::face::find $face
2486	or next;	2864	or next;
2487	if (my $smooth = cf::face::find $info->{smooth}) {	2865	if (my $smooth = cf::face::find $info->{smooth}) {
		2866	cf::face::set_smooth $idx, $smooth;
2488	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2867	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2489	} else {	2868	} else {
2490	warn "smooth face '$info->{smooth}' not found for face '$face'";	2869	warn "smooth face '$info->{smooth}' not found for face '$face'";
2491	}	2870	}
2492	Coro::cede;	2871
		2872	cf::cede_to_tick;
2493	}	2873	}
2494	}	2874	}
2495		2875
2496	{	2876	{
2497	my $anims = $facedata->{animinfo};	2877	my $anims = $facedata->{animinfo};
2498		2878
2499	while (my ($anim, $info) = each %$anims) {	2879	while (my ($anim, $info) = each %$anims) {
2500	cf::anim::set $anim, $info->{frames}, $info->{facings};	2880	cf::anim::set $anim, $info->{frames}, $info->{facings};
2501	Coro::cede;	2881	cf::cede_to_tick;
2502	}	2882	}
2503		2883
2504	cf::anim::invalidate_all; # d'oh	2884	cf::anim::invalidate_all; # d'oh
2505	}	2885	}
2506		2886
		2887	{
		2888	# TODO: for gcfclient pleasure, we should give resources
		2889	# that gcfclient doesn't grok a >10000 face index.
		2890	my $res = $facedata->{resource};
		2891
		2892	my $soundconf = delete $res->{"res/sound.conf"};
		2893
		2894	while (my ($name, $info) = each %$res) {
		2895	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2896	my $data;
		2897
		2898	if ($info->{type} & 1) {
		2899	# prepend meta info
		2900
		2901	my $meta = $enc->encode ({
		2902	name => $name,
		2903	%{ $info->{meta} || {} },
		2904	});
		2905
		2906	$data = pack "(w/a*)*", $meta, $info->{data};
		2907	}
		2908
		2909	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2910	cf::face::set_type $idx, $info->{type};
		2911
		2912	cf::cede_to_tick;
		2913	}
		2914
		2915	if ($soundconf) {
		2916	$soundconf = $enc->decode (delete $soundconf->{data});
		2917
		2918	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2919	my $sound = $soundconf->{compat}[$_]
		2920	or next;
		2921
		2922	my $face = cf::face::find "sound/$sound->[1]";
		2923	cf::sound::set $sound->[0] => $face;
		2924	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2925	}
		2926
		2927	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2928	my $face = cf::face::find "sound/$v";
		2929	cf::sound::set $k => $face;
		2930	}
		2931	}
		2932	}
		2933
2507	1	2934	1
2508	}	2935	}
		2936
		2937	register_exticmd fx_want => sub {
		2938	my ($ns, $want) = @_;
		2939
		2940	while (my ($k, $v) = each %$want) {
		2941	$ns->fx_want ($k, $v);
		2942	}
		2943	};
2509		2944
2510	sub reload_regions {	2945	sub reload_regions {
2511	load_resource_file "$MAPDIR/regions"	2946	load_resource_file "$MAPDIR/regions"
2512	or die "unable to load regions file\n";	2947	or die "unable to load regions file\n";
		2948
		2949	for (cf::region::list) {
		2950	$_->{match} = qr/$_->{match}/
		2951	if exists $_->{match};
		2952	}
2513	}	2953	}
2514		2954
2515	sub reload_facedata {	2955	sub reload_facedata {
2516	load_facedata "$DATADIR/facedata"	2956	load_facedata "$DATADIR/facedata"
2517	or die "unable to load facedata\n";	2957	or die "unable to load facedata\n";
2518	}	2958	}
2519		2959
2520	sub reload_archetypes {	2960	sub reload_archetypes {
2521	load_resource_file "$DATADIR/archetypes"	2961	load_resource_file "$DATADIR/archetypes"
2522	or die "unable to load archetypes\n";	2962	or die "unable to load archetypes\n";
		2963	#d# NEED to laod twice to resolve forward references
		2964	# this really needs to be done in an extra post-pass
		2965	# (which needs to be synchronous, so solve it differently)
		2966	load_resource_file "$DATADIR/archetypes"
		2967	or die "unable to load archetypes\n";
2523	}	2968	}
2524		2969
2525	sub reload_treasures {	2970	sub reload_treasures {
2526	load_resource_file "$DATADIR/treasures"	2971	load_resource_file "$DATADIR/treasures"
2527	or die "unable to load treasurelists\n";	2972	or die "unable to load treasurelists\n";
…		…
2530	sub reload_resources {	2975	sub reload_resources {
2531	warn "reloading resource files...\n";	2976	warn "reloading resource files...\n";
2532		2977
2533	reload_regions;	2978	reload_regions;
2534	reload_facedata;	2979	reload_facedata;
		2980	#reload_archetypes;#d#
2535	reload_archetypes;	2981	reload_archetypes;
2536	reload_treasures;	2982	reload_treasures;
2537		2983
2538	warn "finished reloading resource files\n";	2984	warn "finished reloading resource files\n";
2539	}	2985	}
…		…
2596	},	3042	},
2597	);	3043	);
2598	}	3044	}
2599	}	3045	}
2600		3046
		3047	sub write_runtime {
		3048	my $runtime = "$LOCALDIR/runtime";
		3049
		3050	# first touch the runtime file to show we are still running:
		3051	# the fsync below can take a very very long time.
		3052
		3053	IO::AIO::aio_utime $runtime, undef, undef;
		3054
		3055	my $guard = cf::lock_acquire "write_runtime";
		3056
		3057	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3058	or return;
		3059
		3060	my $value = $cf::RUNTIME + 90 + 10;
		3061	# 10 is the runtime save interval, for a monotonic clock
		3062	# 60 allows for the watchdog to kill the server.
		3063
		3064	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3065	and return;
		3066
		3067	# always fsync - this file is important
		3068	aio_fsync $fh
		3069	and return;
		3070
		3071	# touch it again to show we are up-to-date
		3072	aio_utime $fh, undef, undef;
		3073
		3074	close $fh
		3075	or return;
		3076
		3077	aio_rename "$runtime~", $runtime
		3078	and return;
		3079
		3080	warn "runtime file written.\n";
		3081
		3082	1
		3083	}
		3084
2601	sub emergency_save() {	3085	sub emergency_save() {
2602	my $freeze_guard = cf::freeze_mainloop;	3086	my $freeze_guard = cf::freeze_mainloop;
2603		3087
2604	warn "enter emergency perl save\n";	3088	warn "enter emergency perl save\n";
2605		3089
…		…
2680	%EXT_CORO = ();	3164	%EXT_CORO = ();
2681		3165
2682	warn "removing commands";	3166	warn "removing commands";
2683	%COMMAND = ();	3167	%COMMAND = ();
2684		3168
2685	warn "removing ext commands";	3169	warn "removing ext/exti commands";
2686	%EXTCMD = ();	3170	%EXTCMD = ();
		3171	%EXTICMD = ();
2687		3172
2688	warn "unloading/nuking all extensions";	3173	warn "unloading/nuking all extensions";
2689	for my $pkg (@EXTS) {	3174	for my $pkg (@EXTS) {
2690	warn "... unloading $pkg";	3175	warn "... unloading $pkg";
2691		3176
…		…
2809	my $signal = new Coro::Signal;	3294	my $signal = new Coro::Signal;
2810	push @WAIT_FOR_TICK_BEGIN, $signal;	3295	push @WAIT_FOR_TICK_BEGIN, $signal;
2811	$signal->wait;	3296	$signal->wait;
2812	}	3297	}
2813		3298
		3299	my $min = 1e6;#d#
		3300	my $avg = 10;
2814	$TICK_WATCHER = Event->timer (	3301	$TICK_WATCHER = Event->timer (
2815	reentrant => 0,	3302	reentrant => 0,
2816	parked => 1,	3303	parked => 1,
2817	prio => 0,	3304	prio => 0,
2818	at => $NEXT_TICK || $TICK,	3305	at => $NEXT_TICK || $TICK,
…		…
2822	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3309	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2823	unless ++$bug_warning > 10;	3310	unless ++$bug_warning > 10;
2824	return;	3311	return;
2825	}	3312	}
2826		3313
2827	$NOW = Event::time;	3314	$NOW = $tick_start = Event::time;
2828		3315
2829	cf::server_tick; # one server iteration	3316	cf::server_tick; # one server iteration
		3317
		3318	0 && sync_job {#d#
		3319	for(1..10) {
		3320	my $t = Event::time;
		3321	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3322	or die;
		3323
		3324	$map->width (50);
		3325	$map->height (50);
		3326	$map->alloc;
		3327	$map->_load_objects ("/tmp/x.map", 1);
		3328	my $t = Event::time - $t;
		3329
		3330	#next unless $t < 0.0013;#d#
		3331	if ($t < $min) {
		3332	$min = $t;
		3333	}
		3334	$avg = $avg * 0.99 + $t * 0.01;
		3335	}
		3336	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3337	exit 0;
		3338	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3339	};
2830		3340
2831	$RUNTIME += $TICK;	3341	$RUNTIME += $TICK;
2832	$NEXT_TICK += $TICK;	3342	$NEXT_TICK += $TICK;
2833		3343
2834	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3344	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2840	}	3350	}
2841		3351
2842	# my $AFTER = Event::time;	3352	# my $AFTER = Event::time;
2843	# warn $AFTER - $NOW;#d#	3353	# warn $AFTER - $NOW;#d#
2844		3354
		3355	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3356	$sig->send;
		3357	}
		3358	while (my $sig = shift @WAIT_FOR_TICK) {
		3359	$sig->send;
		3360	}
		3361
		3362	$NOW = Event::time;
		3363
2845	# if we are delayed by four ticks or more, skip them all	3364	# if we are delayed by four ticks or more, skip them all
2846	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3365	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2847		3366
2848	$TICK_WATCHER->at ($NEXT_TICK);	3367	$TICK_WATCHER->at ($NEXT_TICK);
2849	$TICK_WATCHER->start;	3368	$TICK_WATCHER->start;
2850		3369
2851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3370	$LOAD = ($NOW - $tick_start) / $TICK;
2852	$sig->send;	3371	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2853	}
2854	while (my $sig = shift @WAIT_FOR_TICK) {
2855	$sig->send;
2856	}
2857		3372
2858	_post_tick;	3373	_post_tick;
		3374
		3375
2859	},	3376	},
2860	);	3377	);
2861		3378
2862	{	3379	{
2863	BDB::max_poll_time $TICK * 0.1;	3380	BDB::max_poll_time $TICK * 0.1;
…		…
2922	prio => 6,	3439	prio => 6,
2923	cb => \&IO::AIO::poll_cb,	3440	cb => \&IO::AIO::poll_cb,
2924	);	3441	);
2925	}	3442	}
2926		3443
		3444	my $_log_backtrace;
		3445
		3446	sub _log_backtrace {
		3447	my ($msg, @addr) = @_;
		3448
		3449	$msg =~ s/\n//;
		3450
		3451	# limit the # of concurrent backtraces
		3452	if ($_log_backtrace < 2) {
		3453	++$_log_backtrace;
		3454	async {
		3455	my @bt = fork_call {
		3456	@addr = map { sprintf "%x", $_ } @addr;
		3457	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3458	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3459	or die "addr2line: $!";
		3460
		3461	my @funcs;
		3462	my @res = <$fh>;
		3463	chomp for @res;
		3464	while (@res) {
		3465	my ($func, $line) = splice @res, 0, 2, ();
		3466	push @funcs, "[$func] $line";
		3467	}
		3468
		3469	@funcs
		3470	};
		3471
		3472	LOG llevInfo, "[ABT] $msg\n";
		3473	LOG llevInfo, "[ABT] $_\n" for @bt;
		3474	--$_log_backtrace;
		3475	};
		3476	} else {
		3477	LOG llevInfo, "[ABT] $msg\n";
		3478	LOG llevInfo, "[ABT] [suppressed]\n";
		3479	}
		3480	}
		3481
2927	# load additional modules	3482	# load additional modules
2928	use cf::pod;	3483	use cf::pod;
2929		3484
2930	END { cf::emergency_save }	3485	END { cf::emergency_save }
2931		3486

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