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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.277 by root, Sun Jun 10 04:24:50 2007 UTC vs.
Revision 1.355 by root, Sun Sep 2 12:45:44 2007 UTC

…		…
10	use Event;	10	use Event;
11	use Opcode;	11	use Opcode;
12	use Safe;	12	use Safe;
13	use Safe::Hole;	13	use Safe::Hole;
14		14
15	use Coro 3.61 ();	15	use Coro 3.64 ();
16	use Coro::State;	16	use Coro::State;
17	use Coro::Handle;	17	use Coro::Handle;
18	use Coro::Event;	18	use Coro::Event;
19	use Coro::Timer;	19	use Coro::Timer;
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
		24	use Coro::Util ();
24		25
		26	use JSON::XS ();
25	use BDB ();	27	use BDB ();
26	use Data::Dumper;	28	use Data::Dumper;
27	use Digest::MD5;	29	use Digest::MD5;
28	use Fcntl;	30	use Fcntl;
29	use YAML::Syck ();	31	use YAML::Syck ();
30	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
31	use Time::HiRes;	33	use Time::HiRes;
32	use Compress::LZF;	34	use Compress::LZF;
		35	use Digest::MD5 ();
33		36
34	# configure various modules to our taste	37	# configure various modules to our taste
35	#	38	#
36	$Storable::canonical = 1; # reduce rsync transfers	39	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	52	our %COMMAND = ();
50	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
51		54
52	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
56		60
57	our $RELOAD; # number of reloads so far	61	our $RELOAD; # number of reloads so far
58	our @EVENT;	62	our @EVENT;
…		…
164		168
165	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
166	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
167	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.
168		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
169	=back	179	=back
170		180
171	=cut	181	=cut
172		182
173	BEGIN {	183	BEGIN {
…		…
206	}	216	}
207		217
208	$Event::DIED = sub {	218	$Event::DIED = sub {
209	warn "error in event callback: @_";	219	warn "error in event callback: @_";
210	};	220	};
		221
		222	#############################################################################
211		223
212	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
213		225
214	=over 4	226	=over 4
215		227
…		…
234	$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;
235	$d	247	$d
236	} || "[unable to dump $_[0]: '$@']";	248	} || "[unable to dump $_[0]: '$@']";
237	}	249	}
238		250
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
242		252
243	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
244		254
245	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
246		256
247	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]) }
248		265
249	=item cf::lock_wait $string	266	=item cf::lock_wait $string
250		267
251	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
252		269
…		…
254		271
255	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
257	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
258	returned.	275	returned.
		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
259		279
260	Lock names should begin with a unique identifier (for example, cf::map::find	280	Lock names should begin with a unique identifier (for example, cf::map::find
261	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
262		282
263	=item $locked = cf::lock_active $string	283	=item $locked = cf::lock_active $string
…		…
306	};	326	};
307	$TICK_WATCHER->stop;	327	$TICK_WATCHER->stop;
308	$guard	328	$guard
309	}	329	}
310		330
		331	=item cf::get_slot $time[, $priority[, $name]]
		332
		333	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		334	This call blocks and returns only when you have at least C<$time> seconds
		335	of cpu time till the next tick. The slot is only valid till the next cede.
		336
		337	The optional C<$name> can be used to identify the job to run. It might be
		338	used for statistical purposes and should identify the same time-class.
		339
		340	Useful for short background jobs.
		341
		342	=cut
		343
		344	our @SLOT_QUEUE;
		345	our $SLOT_QUEUE;
		346
		347	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		348	$SLOT_QUEUE = Coro::async {
		349	my $signal = new Coro::Signal;
		350
		351	while () {
		352	next_job:
		353	my $avail = cf::till_tick;
		354	if ($avail > 0.01) {
		355	for (0 .. $#SLOT_QUEUE) {
		356	if ($SLOT_QUEUE[$_][0] < $avail) {
		357	my $job = splice @SLOT_QUEUE, $_, 1, ();
		358	$job->[2]->send;
		359	Coro::cede;
		360	goto next_job;
		361	}
		362	}
		363	}
		364
		365	if (@SLOT_QUEUE) {
		366	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		367	push @cf::WAIT_FOR_TICK, $signal;
		368	$signal->wait;
		369	} else {
		370	Coro::schedule;
		371	}
		372	}
		373	};
		374
		375	sub get_slot($;$$) {
		376	my ($time, $pri, $name) = @_;
		377
		378	$time = $TICK * .6 if $time > $TICK * .6;
		379	my $sig = new Coro::Signal;
		380
		381	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		382	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		383	$SLOT_QUEUE->ready;
		384	$sig->wait;
		385	}
		386
311	=item cf::async { BLOCK }	387	=item cf::async { BLOCK }
312		388
313	Currently the same as Coro::async_pool, meaning you cannot use	389	Currently the same as Coro::async_pool, meaning you cannot use
314	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only	390	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
315	thing you are allowed to do is call C<prio> on it.	391	thing you are allowed to do is call C<prio> on it.
…		…
318		394
319	BEGIN { *async = \&Coro::async_pool }	395	BEGIN { *async = \&Coro::async_pool }
320		396
321	=item cf::sync_job { BLOCK }	397	=item cf::sync_job { BLOCK }
322		398
323	The design of crossfire+ requires that the main coro ($Coro::main) is	399	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	400	is always able to handle events or runnable, as Crossfire TRT is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	401	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		402	acceptable.
326		403
327	If it must be done, put the blocking parts into C<sync_job>. This will run	404	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	405	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	406	server will be frozen during this time, so the block should either finish
330	fast or be very important.	407	fast or be very important.
…		…
390	$EXT_CORO{$coro+0} = $coro;	467	$EXT_CORO{$coro+0} = $coro;
391		468
392	$coro	469	$coro
393	}	470	}
394		471
395	sub write_runtime {	472	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		473
398	# first touch the runtime file to show we are still running:	474	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	475	process, returning the results. Everything must be serialisable with
		476	Coro::Storable. May, of course, block. Note that the executed sub may
		477	never block itself or use any form of Event handling.
400		478
401	IO::AIO::aio_utime $runtime, undef, undef;	479	=cut
402		480
403	my $guard = cf::lock_acquire "write_runtime";	481	sub fork_call(&@) {
		482	my ($cb, @args) = @_;
404		483
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	484	# we seemingly have to make a local copy of the whole thing,
406	or return;	485	# otherwise perl prematurely frees the stuff :/
		486	# TODO: investigate and fix (likely this will be rather laborious)
407		487
408	my $value = $cf::RUNTIME + 90 + 10;	488	my @res = Coro::Util::fork_eval {
409	# 10 is the runtime save interval, for a monotonic clock	489	reset_signals;
410	# 60 allows for the watchdog to kill the server.	490	&$cb
		491	}, @args;
411		492
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	493	wantarray ? @res : $res[-1]
413	and return;	494	}
414		495
415	# always fsync - this file is important	496	=item $value = cf::db_get $family => $key
416	aio_fsync $fh
417	and return;
418		497
419	# touch it again to show we are up-to-date	498	Returns a single value from the environment database.
420	aio_utime $fh, undef, undef;
421		499
422	close $fh	500	=item cf::db_put $family => $key => $value
423	or return;
424		501
425	aio_rename "$runtime~", $runtime	502	Stores the given C<$value> in the family. It can currently store binary
426	and return;	503	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
427		504
428	warn "runtime file written.\n";	505	=cut
429		506
		507	our $DB;
		508
		509	sub db_init {
		510	unless ($DB) {
		511	$DB = BDB::db_create $DB_ENV;
		512
		513	cf::sync_job {
		514	eval {
		515	$DB->set_flags (BDB::CHKSUM);
		516
		517	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		518	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		519	cf::cleanup "db_open(db): $!" if $!;
		520	};
		521	cf::cleanup "db_open(db): $@" if $@;
		522	};
430	1	523	}
		524	}
		525
		526	sub db_get($$) {
		527	my $key = "$_[0]/$_[1]";
		528
		529	cf::sync_job {
		530	BDB::db_get $DB, undef, $key, my $data;
		531
		532	$! ? ()
		533	: $data
		534	}
		535	}
		536
		537	sub db_put($$$) {
		538	BDB::dbreq_pri 4;
		539	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		540	}
		541
		542	=item cf::cache $id => [$paths...], $processversion => $process
		543
		544	Generic caching function that returns the value of the resource $id,
		545	caching and regenerating as required.
		546
		547	This function can block.
		548
		549	=cut
		550
		551	sub cache {
		552	my ($id, $src, $processversion, $process) = @_;
		553
		554	my $meta =
		555	join "\x00",
		556	$processversion,
		557	map {
		558	aio_stat $_
		559	and Carp::croak "$_: $!";
		560
		561	($_, (stat _)[7,9])
		562	} @$src;
		563
		564	my $dbmeta = db_get cache => "$id/meta";
		565	if ($dbmeta ne $meta) {
		566	# changed, we may need to process
		567
		568	my @data;
		569	my $md5;
		570
		571	for (0 .. $#$src) {
		572	0 <= aio_load $src->[$_], $data[$_]
		573	or Carp::croak "$src->[$_]: $!";
		574	}
		575
		576	# if processing is expensive, check
		577	# checksum first
		578	if (1) {
		579	$md5 =
		580	join "\x00",
		581	$processversion,
		582	map {
		583	cf::cede_to_tick;
		584	($src->[$_], Digest::MD5::md5_hex $data[$_])
		585	} 0.. $#$src;
		586
		587
		588	my $dbmd5 = db_get cache => "$id/md5";
		589	if ($dbmd5 eq $md5) {
		590	db_put cache => "$id/meta", $meta;
		591
		592	return db_get cache => "$id/data";
		593	}
		594	}
		595
		596	my $t1 = Time::HiRes::time;
		597	my $data = $process->(\@data);
		598	my $t2 = Time::HiRes::time;
		599
		600	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		601
		602	db_put cache => "$id/data", $data;
		603	db_put cache => "$id/md5" , $md5;
		604	db_put cache => "$id/meta", $meta;
		605
		606	return $data;
		607	}
		608
		609	db_get cache => "$id/data"
431	}	610	}
432		611
433	=item cf::datalog type => key => value, ...	612	=item cf::datalog type => key => value, ...
434		613
435	Log a datalog packet of the given type with the given key-value pairs.	614	Log a datalog packet of the given type with the given key-value pairs.
…		…
453	attach callbacks/event handlers (a collection of which is called an "attachment")	632	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	633	to it. All such attachable objects support the following methods.
455		634
456	In the following description, CLASS can be any of C<global>, C<object>	635	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	636	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	637	Crossfire TRT).
459		638
460	=over 4	639	=over 4
461		640
462	=item $attachable->attach ($attachment, key => $value...)	641	=item $attachable->attach ($attachment, key => $value...)
463		642
…		…
665	_attach $registry, $klass, @attach;	844	_attach $registry, $klass, @attach;
666	}	845	}
667		846
668	$obj->{$name} = \%arg;	847	$obj->{$name} = \%arg;
669	} else {	848	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	849	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	850	}
672		851
673	$obj->{_attachment}{$name} = undef;	852	$obj->{_attachment}{$name} = undef;
674	}	853	}
675		854
…		…
715	";	894	";
716	die if $@;	895	die if $@;
717	}	896	}
718		897
719	our $override;	898	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	899	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		900
722	sub override {	901	sub override {
723	$override = 1;	902	$override = 1;
724	@invoke_results = ();	903	@INVOKE_RESULTS = (@_);
725	}	904	}
726		905
727	sub do_invoke {	906	sub do_invoke {
728	my $event = shift;	907	my $event = shift;
729	my $callbacks = shift;	908	my $callbacks = shift;
730		909
731	@invoke_results = ();	910	@INVOKE_RESULTS = ();
732		911
733	local $override;	912	local $override;
734		913
735	for (@$callbacks) {	914	for (@$callbacks) {
736	eval { &{$_->[1]} };	915	eval { &{$_->[1]} };
…		…
753		932
754	Generate an object-specific event with the given arguments.	933	Generate an object-specific event with the given arguments.
755		934
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	935	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	936	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	937	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		938
760	=back	939	=back
761		940
762	=cut	941	=cut
763		942
764	#############################################################################	943	#############################################################################
765	# object support	944	# object support
		945	#
		946
		947	sub _can_merge {
		948	my ($ob1, $ob2) = @_;
		949
		950	local $Storable::canonical = 1;
		951	my $fob1 = Storable::freeze $ob1;
		952	my $fob2 = Storable::freeze $ob2;
		953
		954	$fob1 eq $fob2
		955	}
766		956
767	sub reattach {	957	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	958	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	959	my ($obj) = @_;
770		960
…		…
877	warn sprintf "loading %s (%d)\n",	1067	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av || []};	1068	$filename, length $data, scalar @{$av || []};
879	return ($data, $av);	1069	return ($data, $av);
880	}	1070	}
881		1071
		1072	=head2 COMMAND CALLBACKS
		1073
		1074	=over 4
		1075
		1076	=cut
		1077
882	#############################################################################	1078	#############################################################################
883	# command handling &c	1079	# command handling &c
884		1080
885	=item cf::register_command $name => \&callback($ob,$args);	1081	=item cf::register_command $name => \&callback($ob,$args);
886		1082
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1094	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1095	}
900		1096
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1097	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1098
903	Register a callbackf ro execution when the client sends an extcmd packet.	1099	Register a callback for execution when the client sends an (synchronous)
		1100	extcmd packet. Ext commands will be processed in the order they are
		1101	received by the server, like other user commands. The first argument is
		1102	the logged-in player. Ext commands can only be processed after a player
		1103	has logged in successfully.
904		1104
905	If the callback returns something, it is sent back as if reply was being	1105	If the callback returns something, it is sent back as if reply was being
906	called.	1106	called.
907		1107
		1108	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1109
		1110	Register a callback for execution when the client sends an (asynchronous)
		1111	exticmd packet. Exti commands are processed by the server as soon as they
		1112	are received, i.e. out of order w.r.t. other commands. The first argument
		1113	is a client socket. Exti commands can be received anytime, even before
		1114	log-in.
		1115
		1116	If the callback returns something, it is sent back as if reply was being
		1117	called.
		1118
908	=cut	1119	=cut
909		1120
910	sub register_extcmd {	1121	sub register_extcmd {
911	my ($name, $cb) = @_;	1122	my ($name, $cb) = @_;
912		1123
913	$EXTCMD{$name} = $cb;	1124	$EXTCMD{$name} = $cb;
		1125	}
		1126
		1127	sub register_exticmd {
		1128	my ($name, $cb) = @_;
		1129
		1130	$EXTICMD{$name} = $cb;
914	}	1131	}
915		1132
916	cf::player->attach (	1133	cf::player->attach (
917	on_command => sub {	1134	on_command => sub {
918	my ($pl, $name, $params) = @_;	1135	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1144	cf::override;
928	},	1145	},
929	on_extcmd => sub {	1146	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1147	my ($pl, $buf) = @_;
931		1148
932	my $msg = eval { from_json $buf };	1149	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1150
934	if (ref $msg) {	1151	if (ref $msg) {
		1152	my ($type, $reply, @payload) =
		1153	"ARRAY" eq ref $msg
		1154	? @$msg
		1155	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1156
		1157	my @reply;
		1158
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1159	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1160	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1161	}
		1162
		1163	$pl->ext_reply ($reply, @reply)
		1164	if $reply;
		1165
940	} else {	1166	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1167	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1168	}
943		1169
944	cf::override;	1170	cf::override;
945	},	1171	},
946	);	1172	);
947		1173
948	sub load_extension {
949	my ($path) = @_;
950
951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
952	my $base = $1;
953	my $pkg = $1;
954	$pkg =~ s/[^[:word:]]/_/g;
955	$pkg = "ext::$pkg";
956
957	warn "... loading '$path' into '$pkg'\n";
958
959	open my $fh, "<:utf8", $path
960	or die "$path: $!";
961
962	my $source =
963	"package $pkg; use strict; use utf8;\n"
964	. "#line 1 \"$path\"\n{\n"
965	. (do { local $/; <$fh> })
966	. "\n};\n1";
967
968	unless (eval $source) {
969	my $msg = $@ ? "$path: $@\n"
970	: "extension disabled.\n";
971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
972	warn $@;
973	warn "mandatory extension failed to load, exiting.\n";
974	exit 1;
975	}
976	die $@;
977	}
978
979	push @EXTS, $pkg;
980	}
981
982	sub load_extensions {	1174	sub load_extensions {
		1175	cf::sync_job {
		1176	my %todo;
		1177
983	for my $ext (<$LIBDIR/*.ext>) {	1178	for my $path (<$LIBDIR/*.ext>) {
984	next unless -r $ext;	1179	next unless -r $path;
985	eval {	1180
986	load_extension $ext;	1181	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1182	my $base = $1;
		1183	my $pkg = $1;
		1184	$pkg =~ s/[^[:word:]]/_/g;
		1185	$pkg = "ext::$pkg";
		1186
		1187	open my $fh, "<:utf8", $path
		1188	or die "$path: $!";
		1189
		1190	my $source = do { local $/; <$fh> };
		1191
		1192	my %ext = (
		1193	path => $path,
		1194	base => $base,
		1195	pkg => $pkg,
		1196	);
		1197
		1198	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1199	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1200
		1201	$ext{source} =
		1202	"package $pkg; use strict; use utf8;\n"
		1203	. "#line 1 \"$path\"\n{\n"
		1204	. $source
		1205	. "\n};\n1";
		1206
		1207	$todo{$base} = \%ext;
		1208	}
		1209
		1210	my %done;
		1211	while (%todo) {
		1212	my $progress;
		1213
		1214	while (my ($k, $v) = each %todo) {
		1215	for (split /,\s*/, $v->{meta}{depends}) {
		1216	goto skip
		1217	unless exists $done{$_};
		1218	}
		1219
		1220	warn "... loading '$k' into '$v->{pkg}'\n";
		1221
		1222	unless (eval $v->{source}) {
		1223	my $msg = $@ ? "$v->{path}: $@\n"
		1224	: "$v->{base}: extension inactive.\n";
		1225
		1226	if (exists $v->{meta}{mandatory}) {
		1227	warn $msg;
		1228	warn "mandatory extension failed to load, exiting.\n";
		1229	exit 1;
		1230	}
		1231
		1232	warn $msg;
		1233	}
		1234
		1235	$done{$k} = delete $todo{$k};
		1236	push @EXTS, $v->{pkg};
		1237	$progress = 1;
987	1	1238	}
988	} or warn "$ext not loaded: $@";	1239
		1240	skip:
		1241	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1242	unless $progress;
		1243	}
989	}	1244	};
990	}	1245	}
991		1246
992	#############################################################################	1247	#############################################################################
		1248
		1249	=back
993		1250
994	=head2 CORE EXTENSIONS	1251	=head2 CORE EXTENSIONS
995		1252
996	Functions and methods that extend core crossfire objects.	1253	Functions and methods that extend core crossfire objects.
997		1254
…		…
1068		1325
1069	aio_mkdir playerdir $pl, 0770;	1326	aio_mkdir playerdir $pl, 0770;
1070	$pl->{last_save} = $cf::RUNTIME;	1327	$pl->{last_save} = $cf::RUNTIME;
1071		1328
1072	$pl->save_pl ($path);	1329	$pl->save_pl ($path);
1073	Coro::cede;	1330	cf::cede_to_tick;
1074	}	1331	}
1075		1332
1076	sub new($) {	1333	sub new($) {
1077	my ($login) = @_;	1334	my ($login) = @_;
1078		1335
…		…
1082	$self->{deny_save} = 1;	1339	$self->{deny_save} = 1;
1083		1340
1084	$cf::PLAYER{$login} = $self;	1341	$cf::PLAYER{$login} = $self;
1085		1342
1086	$self	1343	$self
		1344	}
		1345
		1346	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1347
		1348	=cut
		1349
		1350	sub send_msg {
		1351	my $ns = shift->ns
		1352	or return;
		1353	$ns->send_msg (@_);
1087	}	1354	}
1088		1355
1089	=item $pl->quit_character	1356	=item $pl->quit_character
1090		1357
1091	Nukes the player without looking back. If logged in, the connection will	1358	Nukes the player without looking back. If logged in, the connection will
…		…
1146	or return [];	1413	or return [];
1147		1414
1148	my @logins;	1415	my @logins;
1149		1416
1150	for my $login (@$dirs) {	1417	for my $login (@$dirs) {
		1418	my $path = path $login;
		1419
		1420	# a .pst is a dead give-away for a valid player
		1421	unless (-e "$path.pst") {
1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1422	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1152	aio_read $fh, 0, 512, my $buf, 0 or next;	1423	aio_read $fh, 0, 512, my $buf, 0 or next;
1153	$buf !~ /^password -------------$/m or next; # official not-valid tag	1424	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1425	}
1154		1426
1155	utf8::decode $login;	1427	utf8::decode $login;
1156	push @logins, $login;	1428	push @logins, $login;
1157	}	1429	}
1158		1430
…		…
1185	}	1457	}
1186		1458
1187	\@paths	1459	\@paths
1188	}	1460	}
1189		1461
		1462	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1463
		1464	Expand crossfire pod fragments into protocol xml.
		1465
		1466	=cut
		1467
		1468	sub expand_cfpod {
		1469	((my $self), (local $_)) = @_;
		1470
		1471	# escape & and <
		1472	s/&/&amp;/g;
		1473	s/(?<![BIUGHT])</&lt;/g;
		1474
		1475	# this is buggy, it needs to properly take care of nested <'s
		1476
		1477	1 while
		1478	# replace B<>, I<>, U<> etc.
		1479	s/B<([^\>]*)>/<b>$1<\/b>/
		1480	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1481	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1482	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1483	# replace G<male|female> tags
		1484	|| s{G<([^>|]*)\|([^>]*)>}{
		1485	$self->gender ? $2 : $1
		1486	}ge
		1487	# replace H<hint text>
		1488	|| s{H<([^\>]*)>}
		1489	{
		1490	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1491	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1492	"")
		1493	[$self->{hintmode}]
		1494	}ge;
		1495
		1496	# create single paragraphs (very hackish)
		1497	s/(?<=\S)\n(?=\w)/ /g;
		1498
		1499	# compress some whitespace
		1500	s/\s+\n/\n/g; # ws line-ends
		1501	s/\n\n+/\n/g; # double lines
		1502	s/^\n+//; # beginning lines
		1503	s/\n+$//; # ending lines
		1504
		1505	$_
		1506	}
		1507
		1508	sub hintmode {
		1509	$_[0]{hintmode} = $_[1] if @_ > 1;
		1510	$_[0]{hintmode}
		1511	}
		1512
1190	=item $player->ext_reply ($msgid, %msg)	1513	=item $player->ext_reply ($msgid, @msg)
1191		1514
1192	Sends an ext reply to the player.	1515	Sends an ext reply to the player.
1193		1516
1194	=cut	1517	=cut
1195		1518
1196	sub ext_reply($$%) {	1519	sub ext_reply($$@) {
1197	my ($self, $id, %msg) = @_;	1520	my ($self, $id, @msg) = @_;
1198		1521
1199	$msg{msgid} = $id;	1522	$self->ns->ext_reply ($id, @msg)
1200
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1523	}
1203		1524
1204	=item $player->ext_event ($type, %msg)	1525	=item $player->ext_msg ($type, @msg)
1205		1526
1206	Sends an ext event to the client.	1527	Sends an ext event to the client.
1207		1528
1208	=cut	1529	=cut
1209		1530
1210	sub ext_event($$%) {	1531	sub ext_msg($$@) {
1211	my ($self, $type, %msg) = @_;	1532	my ($self, $type, @msg) = @_;
1212		1533
1213	$self->ns->ext_event ($type, %msg);	1534	$self->ns->ext_msg ($type, @msg);
1214	}	1535	}
1215		1536
1216	=head3 cf::region	1537	=head3 cf::region
1217		1538
1218	=over 4	1539	=over 4
…		…
1221		1542
1222	package cf::region;	1543	package cf::region;
1223		1544
1224	=item cf::region::find_by_path $path	1545	=item cf::region::find_by_path $path
1225		1546
1226	Tries to decuce the probable region for a map knowing only its path.	1547	Tries to decuce the likely region for a map knowing only its path.
1227		1548
1228	=cut	1549	=cut
1229		1550
1230	sub find_by_path($) {	1551	sub find_by_path($) {
1231	my ($path) = @_;	1552	my ($path) = @_;
1232		1553
1233	my ($match, $specificity);	1554	my ($match, $specificity);
1234		1555
1235	for my $region (list) {	1556	for my $region (list) {
1236	if ($region->match && $path =~ $region->match) {	1557	if ($region->{match} && $path =~ $region->{match}) {
1237	($match, $specificity) = ($region, $region->specificity)	1558	($match, $specificity) = ($region, $region->specificity)
1238	if $region->specificity > $specificity;	1559	if $region->specificity > $specificity;
1239	}	1560	}
1240	}	1561	}
1241		1562
…		…
1361	$self->init; # pass $1 etc.	1682	$self->init; # pass $1 etc.
1362	return $self;	1683	return $self;
1363	}	1684	}
1364	}	1685	}
1365		1686
1366	Carp::carp "unable to resolve path '$path' (base '$base').";	1687	Carp::cluck "unable to resolve path '$path' (base '$base').";
1367	()	1688	()
1368	}	1689	}
1369		1690
1370	sub init {	1691	sub init {
1371	my ($self) = @_;	1692	my ($self) = @_;
…		…
1537	local $self->{deny_reset} = 1; # loading can take a long time	1858	local $self->{deny_reset} = 1; # loading can take a long time
1538		1859
1539	my $path = $self->{path};	1860	my $path = $self->{path};
1540		1861
1541	{	1862	{
		1863	my $guard1 = cf::lock_acquire "map_data:$path";
1542	my $guard = cf::lock_acquire "map_load:$path";	1864	my $guard2 = cf::lock_acquire "map_load:$path";
1543		1865
1544	return if $self->in_memory != cf::MAP_SWAPPED;	1866	return if $self->in_memory != cf::MAP_SWAPPED;
1545		1867
1546	$self->in_memory (cf::MAP_LOADING);	1868	$self->in_memory (cf::MAP_LOADING);
1547		1869
1548	$self->alloc;	1870	$self->alloc;
1549		1871
1550	$self->pre_load;	1872	$self->pre_load;
1551	Coro::cede;	1873	cf::cede_to_tick;
1552		1874
1553	$self->_load_objects ($self->{load_path}, 1)	1875	$self->_load_objects ($self->{load_path}, 1)
1554	or return;	1876	or return;
1555		1877
1556	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1878	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
…		…
1562	$self->clear_unique_items;	1884	$self->clear_unique_items;
1563	$self->_load_objects ($uniq, 0);	1885	$self->_load_objects ($uniq, 0);
1564	}	1886	}
1565	}	1887	}
1566		1888
1567	Coro::cede;	1889	cf::cede_to_tick;
1568	# now do the right thing for maps	1890	# now do the right thing for maps
1569	$self->link_multipart_objects;	1891	$self->link_multipart_objects;
1570	$self->difficulty ($self->estimate_difficulty)	1892	$self->difficulty ($self->estimate_difficulty)
1571	unless $self->difficulty;	1893	unless $self->difficulty;
1572	Coro::cede;	1894	cf::cede_to_tick;
1573		1895
1574	unless ($self->{deny_activate}) {	1896	unless ($self->{deny_activate}) {
1575	$self->decay_objects;	1897	$self->decay_objects;
1576	$self->fix_auto_apply;	1898	$self->fix_auto_apply;
1577	$self->update_buttons;	1899	$self->update_buttons;
1578	Coro::cede;	1900	cf::cede_to_tick;
1579	$self->set_darkness_map;	1901	$self->set_darkness_map;
1580	Coro::cede;	1902	cf::cede_to_tick;
1581	$self->activate;	1903	$self->activate;
1582	}	1904	}
		1905
		1906	$self->{last_save} = $cf::RUNTIME;
		1907	$self->last_access ($cf::RUNTIME);
1583		1908
1584	$self->in_memory (cf::MAP_IN_MEMORY);	1909	$self->in_memory (cf::MAP_IN_MEMORY);
1585	}	1910	}
1586		1911
1587	$self->post_load;	1912	$self->post_load;
…		…
1598		1923
1599	$self	1924	$self
1600	}	1925	}
1601		1926
1602	# find and load all maps in the 3x3 area around a map	1927	# find and load all maps in the 3x3 area around a map
1603	sub load_diag {	1928	sub load_neighbours {
1604	my ($map) = @_;	1929	my ($map) = @_;
1605		1930
1606	my @diag; # diagonal neighbours	1931	my @neigh; # diagonal neighbours
1607		1932
1608	for (0 .. 3) {	1933	for (0 .. 3) {
1609	my $neigh = $map->tile_path ($_)	1934	my $neigh = $map->tile_path ($_)
1610	or next;	1935	or next;
1611	$neigh = find $neigh, $map	1936	$neigh = find $neigh, $map
1612	or next;	1937	or next;
1613	$neigh->load;	1938	$neigh->load;
1614		1939
		1940	push @neigh,
1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1941	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1942	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1617	}	1943	}
1618		1944
1619	for (@diag) {	1945	for (grep defined $_->[0], @neigh) {
		1946	my ($path, $origin) = @$_;
1620	my $neigh = find @$_	1947	my $neigh = find $path, $origin
1621	or next;	1948	or next;
1622	$neigh->load;	1949	$neigh->load;
1623	}	1950	}
1624	}	1951	}
1625		1952
…		…
1630	}	1957	}
1631		1958
1632	sub do_load_sync {	1959	sub do_load_sync {
1633	my ($map) = @_;	1960	my ($map) = @_;
1634		1961
		1962	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		1963	if $Coro::current == $Coro::main;
		1964
1635	cf::sync_job { $map->load };	1965	cf::sync_job { $map->load };
1636	}	1966	}
1637		1967
1638	our %MAP_PREFETCH;	1968	our %MAP_PREFETCH;
1639	our $MAP_PREFETCHER = undef;	1969	our $MAP_PREFETCHER = undef;
1640		1970
1641	sub find_async {	1971	sub find_async {
1642	my ($path, $origin) = @_;	1972	my ($path, $origin, $load) = @_;
1643		1973
1644	$path = normalise $path, $origin && $origin->{path};	1974	$path = normalise $path, $origin && $origin->{path};
1645		1975
1646	if (my $map = $cf::MAP{$path}) {	1976	if (my $map = $cf::MAP{$path}) {
1647	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1977	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1648	}	1978	}
1649		1979
1650	undef $MAP_PREFETCH{$path};	1980	$MAP_PREFETCH{$path} |= $load;
		1981
1651	$MAP_PREFETCHER ||= cf::async {	1982	$MAP_PREFETCHER ||= cf::async {
1652	while (%MAP_PREFETCH) {	1983	while (%MAP_PREFETCH) {
1653	for my $path (keys %MAP_PREFETCH) {	1984	while (my ($k, $v) = each %MAP_PREFETCH) {
1654	my $map = find $path	1985	if (my $map = find $k) {
1655	or next;
1656	$map->load;	1986	$map->load if $v;
		1987	}
1657		1988
1658	delete $MAP_PREFETCH{$path};	1989	delete $MAP_PREFETCH{$k};
1659	}	1990	}
1660	}	1991	}
1661	undef $MAP_PREFETCHER;	1992	undef $MAP_PREFETCHER;
1662	};	1993	};
1663	$MAP_PREFETCHER->prio (6);	1994	$MAP_PREFETCHER->prio (6);
…		…
1666	}	1997	}
1667		1998
1668	sub save {	1999	sub save {
1669	my ($self) = @_;	2000	my ($self) = @_;
1670		2001
1671	my $lock = cf::lock_acquire "map_data:" . $self->path;	2002	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2003
1673	$self->{last_save} = $cf::RUNTIME;	2004	$self->{last_save} = $cf::RUNTIME;
1674		2005
1675	return unless $self->dirty;	2006	return unless $self->dirty;
1676		2007
…		…
1699	my ($self) = @_;	2030	my ($self) = @_;
1700		2031
1701	# save first because save cedes	2032	# save first because save cedes
1702	$self->save;	2033	$self->save;
1703		2034
1704	my $lock = cf::lock_acquire "map_data:" . $self->path;	2035	my $lock = cf::lock_acquire "map_data:$self->{path}";
1705		2036
1706	return if $self->players;	2037	return if $self->players;
1707	return if $self->in_memory != cf::MAP_IN_MEMORY;	2038	return if $self->in_memory != cf::MAP_IN_MEMORY;
1708	return if $self->{deny_save};	2039	return if $self->{deny_save};
1709		2040
…		…
1761	my $nuke_counter = "aaaa";	2092	my $nuke_counter = "aaaa";
1762		2093
1763	sub nuke {	2094	sub nuke {
1764	my ($self) = @_;	2095	my ($self) = @_;
1765		2096
		2097	{
		2098	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2099
1766	delete $cf::MAP{$self->path};	2100	delete $cf::MAP{$self->path};
1767		2101
1768	$self->unlink_save;	2102	$self->unlink_save;
1769		2103
1770	bless $self, "cf::map";	2104	bless $self, "cf::map";
1771	delete $self->{deny_reset};	2105	delete $self->{deny_reset};
1772	$self->{deny_save} = 1;	2106	$self->{deny_save} = 1;
1773	$self->reset_timeout (1);	2107	$self->reset_timeout (1);
1774	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2108	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1775		2109
1776	$cf::MAP{$self->path} = $self;	2110	$cf::MAP{$self->path} = $self;
		2111	}
1777		2112
1778	$self->reset; # polite request, might not happen	2113	$self->reset; # polite request, might not happen
1779	}	2114	}
1780		2115
1781	=item $maps = cf::map::tmp_maps	2116	=item $maps = cf::map::tmp_maps
…		…
1883		2218
1884	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2219	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1885		2220
1886	if ($self->{record_replies}) {	2221	if ($self->{record_replies}) {
1887	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2222	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2223
1888	} else {	2224	} else {
		2225	my $pl = $self->contr;
		2226
		2227	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2228	my $dialog = $pl->{npc_dialog};
		2229	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2230
		2231	} else {
1889	$msg = $npc->name . " says: $msg" if $npc;	2232	$msg = $npc->name . " says: $msg" if $npc;
1890	$self->message ($msg, $flags);	2233	$self->message ($msg, $flags);
		2234	}
1891	}	2235	}
		2236	}
		2237
		2238	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2239
		2240	=cut
		2241
		2242	sub cf::object::send_msg {
		2243	my $pl = shift->contr
		2244	or return;
		2245	$pl->send_msg (@_);
1892	}	2246	}
1893		2247
1894	=item $player_object->may ("access")	2248	=item $player_object->may ("access")
1895		2249
1896	Returns wether the given player is authorized to access resource "access"	2250	Returns wether the given player is authorized to access resource "access"
…		…
1975	# use -1 or undef as default coordinates, not 0, 0	2329	# use -1 or undef as default coordinates, not 0, 0
1976	($x, $y) = ($map->enter_x, $map->enter_y)	2330	($x, $y) = ($map->enter_x, $map->enter_y)
1977	if $x <=0 && $y <= 0;	2331	if $x <=0 && $y <= 0;
1978		2332
1979	$map->load;	2333	$map->load;
1980	$map->load_diag;	2334	$map->load_neighbours;
1981		2335
1982	return unless $self->contr->active;	2336	return unless $self->contr->active;
1983	$self->activate_recursive;	2337	$self->activate_recursive;
1984		2338
1985	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2339	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1986	$self->enter_map ($map, $x, $y);	2340	$self->enter_map ($map, $x, $y);
1987	}	2341	}
1988		2342
1989	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2343	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1990		2344
1991	Moves the player to the given map-path and coordinates by first freezing	2345	Moves the player to the given map-path and coordinates by first freezing
1992	her, loading and preparing them map, calling the provided $check callback	2346	her, loading and preparing them map, calling the provided $check callback
1993	that has to return the map if sucecssful, and then unfreezes the player on	2347	that has to return the map if sucecssful, and then unfreezes the player on
1994	the new (success) or old (failed) map position.	2348	the new (success) or old (failed) map position. In either case, $done will
		2349	be called at the end of this process.
1995		2350
1996	=cut	2351	=cut
1997		2352
1998	our $GOTOGEN;	2353	our $GOTOGEN;
1999		2354
2000	sub cf::object::player::goto {	2355	sub cf::object::player::goto {
2001	my ($self, $path, $x, $y, $check) = @_;	2356	my ($self, $path, $x, $y, $check, $done) = @_;
2002		2357
2003	# do generation counting so two concurrent goto's will be executed in-order	2358	# do generation counting so two concurrent goto's will be executed in-order
2004	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2359	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2005		2360
2006	$self->enter_link;	2361	$self->enter_link;
…		…
2026		2381
2027	if ($gen == $self->{_goto_generation}) {	2382	if ($gen == $self->{_goto_generation}) {
2028	delete $self->{_goto_generation};	2383	delete $self->{_goto_generation};
2029	$self->leave_link ($map, $x, $y);	2384	$self->leave_link ($map, $x, $y);
2030	}	2385	}
		2386
		2387	$done->() if $done;
2031	})->prio (1);	2388	})->prio (1);
2032	}	2389	}
2033		2390
2034	=item $player_object->enter_exit ($exit_object)	2391	=item $player_object->enter_exit ($exit_object)
2035		2392
…		…
2104	my $hp = $exit->stats->hp;	2461	my $hp = $exit->stats->hp;
2105	my $sp = $exit->stats->sp;	2462	my $sp = $exit->stats->sp;
2106		2463
2107	$self->enter_link;	2464	$self->enter_link;
2108		2465
		2466	# if exit is damned, update players death & WoR home-position
		2467	$self->contr->savebed ($slaying, $hp, $sp)
		2468	if $exit->flag (FLAG_DAMNED);
		2469
2109	(async {	2470	(async {
2110	$self->deactivate_recursive; # just to be sure	2471	$self->deactivate_recursive; # just to be sure
2111	unless (eval {	2472	unless (eval {
2112	$self->goto ($slaying, $hp, $sp);	2473	$self->goto ($slaying, $hp, $sp);
2113		2474
…		…
2140		2501
2141	utf8::encode $text;	2502	utf8::encode $text;
2142	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2503	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2143	}	2504	}
2144		2505
		2506	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	Send a drawinfo or msg packet to the client, formatting the msg for the
		2509	client if neccessary. C<$type> should be a string identifying the type of
		2510	the message, with C<log> being the default. If C<$color> is negative, suppress
		2511	the message unless the client supports the msg packet.
		2512
		2513	=cut
		2514
		2515	our %CHANNEL = (
		2516	"c/identify" => {
		2517	id => "identify",
		2518	title => "Identify",
		2519	reply => undef,
		2520	tooltip => "Items recently identified",
		2521	},
		2522	"c/examine" => {
		2523	id => "examine",
		2524	title => "Examine",
		2525	reply => undef,
		2526	tooltip => "Signs and other items you examined",
		2527	},
		2528	);
		2529
		2530	sub cf::client::send_msg {
		2531	my ($self, $channel, $msg, $color, @extra) = @_;
		2532
		2533	$msg = $self->pl->expand_cfpod ($msg);
		2534
		2535	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2536
		2537	# check predefined channels, for the benefit of C
		2538	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2539
		2540	if (ref $channel) {
		2541	# send meta info to client, if not yet sent
		2542	unless (exists $self->{channel}{$channel->{id}}) {
		2543	$self->{channel}{$channel->{id}} = $channel;
		2544	$self->ext_msg (channel_info => $channel)
		2545	if $self->can_msg;
		2546	}
		2547
		2548	$channel = $channel->{id};
		2549	}
		2550
		2551	return unless @extra || length $msg;
		2552
		2553	if ($self->can_msg) {
		2554	# default colour, mask it out
		2555	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2556	if $color & cf::NDI_DEF;
		2557
		2558	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2559	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2560	} else {
		2561	if ($color >= 0) {
		2562	# replace some tags by gcfclient-compatible ones
		2563	for ($msg) {
		2564	1 while
		2565	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2566	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2567	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2568	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2569	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2570	}
		2571
		2572	$color &= cf::NDI_COLOR_MASK;
		2573
		2574	utf8::encode $msg;
		2575
		2576	if (0 && $msg =~ /\[/) {
		2577	# COMMAND/INFO
		2578	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2579	} else {
		2580	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2581	$self->send_packet ("drawinfo $color $msg")
		2582	}
		2583	}
		2584	}
		2585	}
		2586
2145	=item $client->ext_event ($type, %msg)	2587	=item $client->ext_msg ($type, @msg)
2146		2588
2147	Sends an exti event to the client.	2589	Sends an ext event to the client.
2148		2590
2149	=cut	2591	=cut
2150		2592
2151	sub cf::client::ext_event($$%) {	2593	sub cf::client::ext_msg($$@) {
2152	my ($self, $type, %msg) = @_;	2594	my ($self, $type, @msg) = @_;
2153		2595
		2596	if ($self->extcmd == 2) {
		2597	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2598	} elsif ($self->extcmd == 1) { # TODO: remove
2154	$msg{msgtype} = "event_$type";	2599	push @msg, msgtype => "event_$type";
2155	$self->send_packet ("ext " . cf::to_json \%msg);	2600	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2601	}
		2602	}
		2603
		2604	=item $client->ext_reply ($msgid, @msg)
		2605
		2606	Sends an ext reply to the client.
		2607
		2608	=cut
		2609
		2610	sub cf::client::ext_reply($$@) {
		2611	my ($self, $id, @msg) = @_;
		2612
		2613	if ($self->extcmd == 2) {
		2614	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2615	} elsif ($self->extcmd == 1) {
		2616	#TODO: version 1, remove
		2617	unshift @msg, msgtype => "reply", msgid => $id;
		2618	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2619	}
2156	}	2620	}
2157		2621
2158	=item $success = $client->query ($flags, "text", \&cb)	2622	=item $success = $client->query ($flags, "text", \&cb)
2159		2623
2160	Queues a query to the client, calling the given callback with	2624	Queues a query to the client, calling the given callback with
2161	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2625	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2162	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2626	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2163		2627
2164	Queries can fail, so check the return code. Or don't, as queries will become	2628	Queries can fail, so check the return code. Or don't, as queries will
2165	reliable at some point in the future.	2629	become reliable at some point in the future.
2166		2630
2167	=cut	2631	=cut
2168		2632
2169	sub cf::client::query {	2633	sub cf::client::query {
2170	my ($self, $flags, $text, $cb) = @_;	2634	my ($self, $flags, $text, $cb) = @_;
…		…
2178	utf8::encode $text;	2642	utf8::encode $text;
2179	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2643	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2180		2644
2181	$self->send_packet ($self->{query_queue}[0][0])	2645	$self->send_packet ($self->{query_queue}[0][0])
2182	if @{ $self->{query_queue} } == 1;	2646	if @{ $self->{query_queue} } == 1;
		2647
		2648	1
2183	}	2649	}
2184		2650
2185	cf::client->attach (	2651	cf::client->attach (
		2652	on_connect => sub {
		2653	my ($ns) = @_;
		2654
		2655	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2656	},
2186	on_reply => sub {	2657	on_reply => sub {
2187	my ($ns, $msg) = @_;	2658	my ($ns, $msg) = @_;
2188		2659
2189	# this weird shuffling is so that direct followup queries	2660	# this weird shuffling is so that direct followup queries
2190	# get handled first	2661	# get handled first
…		…
2202	} else {	2673	} else {
2203	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2674	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2204	}	2675	}
2205	}	2676	}
2206	},	2677	},
		2678	on_exticmd => sub {
		2679	my ($ns, $buf) = @_;
		2680
		2681	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2682
		2683	if (ref $msg) {
		2684	my ($type, $reply, @payload) =
		2685	"ARRAY" eq ref $msg
		2686	? @$msg
		2687	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2688
		2689	my @reply;
		2690
		2691	if (my $cb = $EXTICMD{$type}) {
		2692	@reply = $cb->($ns, @payload);
		2693	}
		2694
		2695	$ns->ext_reply ($reply, @reply)
		2696	if $reply;
		2697
		2698	} else {
		2699	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2700	}
		2701
		2702	cf::override;
		2703	},
2207	);	2704	);
2208		2705
2209	=item $client->async (\&cb)	2706	=item $client->async (\&cb)
2210		2707
2211	Create a new coroutine, running the specified callback. The coroutine will	2708	Create a new coroutine, running the specified callback. The coroutine will
…		…
2252	our $safe = new Safe "safe";	2749	our $safe = new Safe "safe";
2253	our $safe_hole = new Safe::Hole;	2750	our $safe_hole = new Safe::Hole;
2254		2751
2255	$SIG{FPE} = 'IGNORE';	2752	$SIG{FPE} = 'IGNORE';
2256		2753
2257	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2754	$safe->permit_only (Opcode::opset qw(
		2755	:base_core :base_mem :base_orig :base_math
		2756	grepstart grepwhile mapstart mapwhile
		2757	sort time
		2758	));
2258		2759
2259	# here we export the classes and methods available to script code	2760	# here we export the classes and methods available to script code
2260		2761
2261	=pod	2762	=pod
2262		2763
2263	The following functions and methods are available within a safe environment:	2764	The following functions and methods are available within a safe environment:
2264		2765
2265	cf::object contr pay_amount pay_player map	2766	cf::object
		2767	contr pay_amount pay_player map x y force_find force_add
		2768	insert remove name archname title slaying race decrease_ob_nr
		2769
2266	cf::object::player player	2770	cf::object::player
2267	cf::player peaceful	2771	player
2268	cf::map trigger	2772
		2773	cf::player
		2774	peaceful
		2775
		2776	cf::map
		2777	trigger
2269		2778
2270	=cut	2779	=cut
2271		2780
2272	for (	2781	for (
2273	["cf::object" => qw(contr pay_amount pay_player map)],	2782	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2783	insert remove inv name archname title slaying race
		2784	decrease_ob_nr)],
2274	["cf::object::player" => qw(player)],	2785	["cf::object::player" => qw(player)],
2275	["cf::player" => qw(peaceful)],	2786	["cf::player" => qw(peaceful)],
2276	["cf::map" => qw(trigger)],	2787	["cf::map" => qw(trigger)],
2277	) {	2788	) {
2278	no strict 'refs';	2789	no strict 'refs';
…		…
2349	=back	2860	=back
2350		2861
2351	=cut	2862	=cut
2352		2863
2353	#############################################################################	2864	#############################################################################
2354
2355	=head2 EXTENSION DATABASE SUPPORT
2356
2357	Crossfire maintains a very simple database for extension use. It can
2358	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2359	convert to/from binary).
2360
2361	The parameter C<$family> should best start with the name of the extension
2362	using it, it should be unique.
2363
2364	=over 4
2365
2366	=item $value = cf::db_get $family => $key
2367
2368	Returns a single value from the database.
2369
2370	=item cf::db_put $family => $key => $value
2371
2372	Stores the given C<$value> in the family.
2373
2374	=cut
2375
2376	our $DB;
2377
2378	sub db_init {
2379	unless ($DB) {
2380	$DB = BDB::db_create $DB_ENV;
2381
2382	cf::sync_job {
2383	eval {
2384	$DB->set_flags (BDB::CHKSUM);
2385
2386	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2387	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2388	cf::cleanup "db_open(db): $!" if $!;
2389	};
2390	cf::cleanup "db_open(db): $@" if $@;
2391	};
2392	}
2393	}
2394
2395	sub db_get($$) {
2396	my $key = "$_[0]/$_[1]";
2397
2398	cf::sync_job {
2399	BDB::db_get $DB, undef, $key, my $data;
2400
2401	$! ? ()
2402	: $data
2403	}
2404	}
2405
2406	sub db_put($$$) {
2407	BDB::dbreq_pri 4;
2408	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2409	}
2410
2411	=item cf::cache $id => [$paths...], $processversion => $process
2412
2413	Generic caching function that returns the value of the resource $id,
2414	caching and regenerating as required.
2415
2416	This function can block.
2417
2418	=cut
2419
2420	sub cache {
2421	my ($id, $src, $processversion, $process) = @_;
2422
2423	my $meta =
2424	join "\x00",
2425	$processversion,
2426	map {
2427	aio_stat $_
2428	and Carp::croak "$_: $!";
2429
2430	($_, (stat _)[7,9])
2431	} @$src;
2432
2433	my $dbmeta = db_get cache => "$id/meta";
2434	if ($dbmeta ne $meta) {
2435	# changed, we may need to process
2436
2437	my @data;
2438	my $md5;
2439
2440	for (0 .. $#$src) {
2441	0 <= aio_load $src->[$_], $data[$_]
2442	or Carp::croak "$src->[$_]: $!";
2443	}
2444
2445	# if processing is expensive, check
2446	# checksum first
2447	if (1) {
2448	$md5 =
2449	join "\x00",
2450	$processversion,
2451	map {
2452	Coro::cede;
2453	($src->[$_], Digest::MD5::md5_hex $data[$_])
2454	} 0.. $#$src;
2455
2456
2457	my $dbmd5 = db_get cache => "$id/md5";
2458	if ($dbmd5 eq $md5) {
2459	db_put cache => "$id/meta", $meta;
2460
2461	return db_get cache => "$id/data";
2462	}
2463	}
2464
2465	my $t1 = Time::HiRes::time;
2466	my $data = $process->(\@data);
2467	my $t2 = Time::HiRes::time;
2468
2469	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2470
2471	db_put cache => "$id/data", $data;
2472	db_put cache => "$id/md5" , $md5;
2473	db_put cache => "$id/meta", $meta;
2474
2475	return $data;
2476	}
2477
2478	db_get cache => "$id/data"
2479	}
2480
2481	=item fork_call { }, $args
2482
2483	Executes the given code block with the given arguments in a seperate
2484	process, returning the results. Everything must be serialisable with
2485	Coro::Storable. May, of course, block. Note that the executed sub may
2486	never block itself or use any form of Event handling.
2487
2488	=cut
2489
2490	sub fork_call(&@) {
2491	my ($cb, @args) = @_;
2492
2493	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2494	# or die "socketpair: $!";
2495	pipe my $fh1, my $fh2
2496	or die "pipe: $!";
2497
2498	if (my $pid = fork) {
2499	close $fh2;
2500
2501	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2502	$res = Coro::Storable::thaw $res;
2503
2504	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2505
2506	die $$res unless "ARRAY" eq ref $res;
2507
2508	return wantarray ? @$res : $res->[-1];
2509	} else {
2510	reset_signals;
2511	local $SIG{__WARN__};
2512	local $SIG{__DIE__};
2513	eval {
2514	close $fh1;
2515
2516	my @res = eval { $cb->(@args) };
2517	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2518	};
2519
2520	warn $@ if $@;
2521	_exit 0;
2522	}
2523	}
2524
2525	#############################################################################
2526	# the server's init and main functions	2865	# the server's init and main functions
2527		2866
2528	sub load_facedata($) {	2867	sub load_facedata($) {
2529	my ($path) = @_;	2868	my ($path) = @_;
		2869
		2870	# HACK to clear player env face cache, we need some signal framework
		2871	# for this (global event?)
		2872	%ext::player_env::MUSIC_FACE_CACHE = ();
		2873
		2874	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2530		2875
2531	warn "loading facedata from $path\n";	2876	warn "loading facedata from $path\n";
2532		2877
2533	my $facedata;	2878	my $facedata;
2534	0 < aio_load $path, $facedata	2879	0 < aio_load $path, $facedata
…		…
2537	$facedata = Coro::Storable::thaw $facedata;	2882	$facedata = Coro::Storable::thaw $facedata;
2538		2883
2539	$facedata->{version} == 2	2884	$facedata->{version} == 2
2540	or cf::cleanup "$path: version mismatch, cannot proceed.";	2885	or cf::cleanup "$path: version mismatch, cannot proceed.";
2541		2886
		2887	# patch in the exptable
		2888	$facedata->{resource}{"res/exp_table"} = {
		2889	type => FT_RSRC,
		2890	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		2891	};
		2892	cf::cede_to_tick;
		2893
2542	{	2894	{
2543	my $faces = $facedata->{faceinfo};	2895	my $faces = $facedata->{faceinfo};
2544		2896
2545	while (my ($face, $info) = each %$faces) {	2897	while (my ($face, $info) = each %$faces) {
2546	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2898	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2547	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2899	cf::face::set_visibility $idx, $info->{visibility};
		2900	cf::face::set_magicmap $idx, $info->{magicmap};
2548	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2901	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2549	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2902	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2550	Coro::cede;	2903
		2904	cf::cede_to_tick;
2551	}	2905	}
2552		2906
2553	while (my ($face, $info) = each %$faces) {	2907	while (my ($face, $info) = each %$faces) {
2554	next unless $info->{smooth};	2908	next unless $info->{smooth};
2555	my $idx = cf::face::find $face	2909	my $idx = cf::face::find $face
2556	or next;	2910	or next;
2557	if (my $smooth = cf::face::find $info->{smooth}) {	2911	if (my $smooth = cf::face::find $info->{smooth}) {
		2912	cf::face::set_smooth $idx, $smooth;
2558	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2913	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2559	} else {	2914	} else {
2560	warn "smooth face '$info->{smooth}' not found for face '$face'";	2915	warn "smooth face '$info->{smooth}' not found for face '$face'";
2561	}	2916	}
2562	Coro::cede;	2917
		2918	cf::cede_to_tick;
2563	}	2919	}
2564	}	2920	}
2565		2921
2566	{	2922	{
2567	my $anims = $facedata->{animinfo};	2923	my $anims = $facedata->{animinfo};
2568		2924
2569	while (my ($anim, $info) = each %$anims) {	2925	while (my ($anim, $info) = each %$anims) {
2570	cf::anim::set $anim, $info->{frames}, $info->{facings};	2926	cf::anim::set $anim, $info->{frames}, $info->{facings};
2571	Coro::cede;	2927	cf::cede_to_tick;
2572	}	2928	}
2573		2929
2574	cf::anim::invalidate_all; # d'oh	2930	cf::anim::invalidate_all; # d'oh
2575	}	2931	}
2576		2932
		2933	{
		2934	# TODO: for gcfclient pleasure, we should give resources
		2935	# that gcfclient doesn't grok a >10000 face index.
		2936	my $res = $facedata->{resource};
		2937
		2938	my $soundconf = delete $res->{"res/sound.conf"};
		2939
		2940	while (my ($name, $info) = each %$res) {
		2941	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2942	my $data;
		2943
		2944	if ($info->{type} & 1) {
		2945	# prepend meta info
		2946
		2947	my $meta = $enc->encode ({
		2948	name => $name,
		2949	%{ $info->{meta} || {} },
		2950	});
		2951
		2952	$data = pack "(w/a*)*", $meta, $info->{data};
		2953	} else {
		2954	$data = $info->{data};
		2955	}
		2956
		2957	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2958	cf::face::set_type $idx, $info->{type};
		2959
		2960	cf::cede_to_tick;
		2961	}
		2962
		2963	if ($soundconf) {
		2964	$soundconf = $enc->decode (delete $soundconf->{data});
		2965
		2966	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2967	my $sound = $soundconf->{compat}[$_]
		2968	or next;
		2969
		2970	my $face = cf::face::find "sound/$sound->[1]";
		2971	cf::sound::set $sound->[0] => $face;
		2972	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2973	}
		2974
		2975	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2976	my $face = cf::face::find "sound/$v";
		2977	cf::sound::set $k => $face;
		2978	}
		2979	}
		2980	}
		2981
2577	1	2982	1
2578	}	2983	}
2579		2984
		2985	register_exticmd fx_want => sub {
		2986	my ($ns, $want) = @_;
		2987
		2988	while (my ($k, $v) = each %$want) {
		2989	$ns->fx_want ($k, $v);
		2990	}
		2991	};
		2992
2580	sub reload_regions {	2993	sub reload_regions {
		2994	# HACK to clear player env face cache, we need some signal framework
		2995	# for this (global event?)
		2996	%ext::player_env::MUSIC_FACE_CACHE = ();
		2997
2581	load_resource_file "$MAPDIR/regions"	2998	load_resource_file "$MAPDIR/regions"
2582	or die "unable to load regions file\n";	2999	or die "unable to load regions file\n";
		3000
		3001	for (cf::region::list) {
		3002	$_->{match} = qr/$_->{match}/
		3003	if exists $_->{match};
		3004	}
2583	}	3005	}
2584		3006
2585	sub reload_facedata {	3007	sub reload_facedata {
2586	load_facedata "$DATADIR/facedata"	3008	load_facedata "$DATADIR/facedata"
2587	or die "unable to load facedata\n";	3009	or die "unable to load facedata\n";
2588	}	3010	}
2589		3011
2590	sub reload_archetypes {	3012	sub reload_archetypes {
		3013	load_resource_file "$DATADIR/archetypes"
		3014	or die "unable to load archetypes\n";
		3015	#d# NEED to laod twice to resolve forward references
		3016	# this really needs to be done in an extra post-pass
		3017	# (which needs to be synchronous, so solve it differently)
2591	load_resource_file "$DATADIR/archetypes"	3018	load_resource_file "$DATADIR/archetypes"
2592	or die "unable to load archetypes\n";	3019	or die "unable to load archetypes\n";
2593	}	3020	}
2594		3021
2595	sub reload_treasures {	3022	sub reload_treasures {
…		…
2611		3038
2612	sub init {	3039	sub init {
2613	reload_resources;	3040	reload_resources;
2614	}	3041	}
2615		3042
2616	sub cfg_load {	3043	sub reload_config {
2617	open my $fh, "<:utf8", "$CONFDIR/config"	3044	open my $fh, "<:utf8", "$CONFDIR/config"
2618	or return;	3045	or return;
2619		3046
2620	local $/;	3047	local $/;
2621	*CFG = YAML::Syck::Load <$fh>;	3048	*CFG = YAML::Syck::Load <$fh>;
…		…
2641	(async {	3068	(async {
2642	Event::one_event;	3069	Event::one_event;
2643	})->prio (Coro::PRIO_MAX);	3070	})->prio (Coro::PRIO_MAX);
2644	};	3071	};
2645		3072
2646	cfg_load;	3073	reload_config;
2647	db_init;	3074	db_init;
2648	load_extensions;	3075	load_extensions;
2649		3076
2650	$TICK_WATCHER->start;	3077	$TICK_WATCHER->start;
2651	Event::loop;	3078	Event::loop;
…		…
2667	},	3094	},
2668	);	3095	);
2669	}	3096	}
2670	}	3097	}
2671		3098
		3099	sub write_runtime {
		3100	my $runtime = "$LOCALDIR/runtime";
		3101
		3102	# first touch the runtime file to show we are still running:
		3103	# the fsync below can take a very very long time.
		3104
		3105	IO::AIO::aio_utime $runtime, undef, undef;
		3106
		3107	my $guard = cf::lock_acquire "write_runtime";
		3108
		3109	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3110	or return;
		3111
		3112	my $value = $cf::RUNTIME + 90 + 10;
		3113	# 10 is the runtime save interval, for a monotonic clock
		3114	# 60 allows for the watchdog to kill the server.
		3115
		3116	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3117	and return;
		3118
		3119	# always fsync - this file is important
		3120	aio_fsync $fh
		3121	and return;
		3122
		3123	# touch it again to show we are up-to-date
		3124	aio_utime $fh, undef, undef;
		3125
		3126	close $fh
		3127	or return;
		3128
		3129	aio_rename "$runtime~", $runtime
		3130	and return;
		3131
		3132	warn "runtime file written.\n";
		3133
		3134	1
		3135	}
		3136
2672	sub emergency_save() {	3137	sub emergency_save() {
2673	my $freeze_guard = cf::freeze_mainloop;	3138	my $freeze_guard = cf::freeze_mainloop;
2674		3139
2675	warn "enter emergency perl save\n";	3140	warn "enter emergency perl save\n";
2676		3141
…		…
2751	%EXT_CORO = ();	3216	%EXT_CORO = ();
2752		3217
2753	warn "removing commands";	3218	warn "removing commands";
2754	%COMMAND = ();	3219	%COMMAND = ();
2755		3220
2756	warn "removing ext commands";	3221	warn "removing ext/exti commands";
2757	%EXTCMD = ();	3222	%EXTCMD = ();
		3223	%EXTICMD = ();
2758		3224
2759	warn "unloading/nuking all extensions";	3225	warn "unloading/nuking all extensions";
2760	for my $pkg (@EXTS) {	3226	for my $pkg (@EXTS) {
2761	warn "... unloading $pkg";	3227	warn "... unloading $pkg";
2762		3228
…		…
2805	warn "reloading cf.pm";	3271	warn "reloading cf.pm";
2806	require cf;	3272	require cf;
2807	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3273	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2808		3274
2809	warn "loading config and database again";	3275	warn "loading config and database again";
2810	cf::cfg_load;	3276	cf::reload_config;
2811		3277
2812	warn "loading extensions";	3278	warn "loading extensions";
2813	cf::load_extensions;	3279	cf::load_extensions;
2814		3280
2815	warn "reattaching attachments to objects/players";	3281	warn "reattaching attachments to objects/players";

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