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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.278 by root, Mon Jun 11 21:38:14 2007 UTC vs.
Revision 1.337 by root, Tue Aug 21 00:54:01 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;
…		…
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
…		…
306	};	323	};
307	$TICK_WATCHER->stop;	324	$TICK_WATCHER->stop;
308	$guard	325	$guard
309	}	326	}
310		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
311	=item cf::async { BLOCK }	384	=item cf::async { BLOCK }
312		385
313	Currently the same as Coro::async_pool, meaning you cannot use	386	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	387	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.	388	thing you are allowed to do is call C<prio> on it.
…		…
318		391
319	BEGIN { *async = \&Coro::async_pool }	392	BEGIN { *async = \&Coro::async_pool }
320		393
321	=item cf::sync_job { BLOCK }	394	=item cf::sync_job { BLOCK }
322		395
323	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)
324	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
325	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.
326		400
327	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
328	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
329	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
330	fast or be very important.	404	fast or be very important.
…		…
390	$EXT_CORO{$coro+0} = $coro;	464	$EXT_CORO{$coro+0} = $coro;
391		465
392	$coro	466	$coro
393	}	467	}
394		468
395	sub write_runtime {	469	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		470
398	# first touch the runtime file to show we are still running:	471	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	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.
400		475
401	IO::AIO::aio_utime $runtime, undef, undef;	476	=cut
402		477
403	my $guard = cf::lock_acquire "write_runtime";	478	sub fork_call(&@) {
		479	my ($cb, @args) = @_;
404		480
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	481	# we seemingly have to make a local copy of the whole thing,
406	or return;	482	# otherwise perl prematurely frees the stuff :/
		483	# TODO: investigate and fix (liekly this will be rather laborious)
407		484
408	my $value = $cf::RUNTIME + 90 + 10;	485	my @res = Coro::Util::fork_eval {
409	# 10 is the runtime save interval, for a monotonic clock	486	reset_signals;
410	# 60 allows for the watchdog to kill the server.	487	&$cb
		488	}, @args;
411		489
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	490	wantarray ? @res : $res[-1]
413	and return;	491	}
414		492
415	# always fsync - this file is important	493	=item $value = cf::db_get $family => $key
416	aio_fsync $fh
417	and return;
418		494
419	# touch it again to show we are up-to-date	495	Returns a single value from the environment database.
420	aio_utime $fh, undef, undef;
421		496
422	close $fh	497	=item cf::db_put $family => $key => $value
423	or return;
424		498
425	aio_rename "$runtime~", $runtime	499	Stores the given C<$value> in the family. It can currently store binary
426	and return;	500	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
427		501
428	warn "runtime file written.\n";	502	=cut
429		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	};
430	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"
431	}	607	}
432		608
433	=item cf::datalog type => key => value, ...	609	=item cf::datalog type => key => value, ...
434		610
435	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.
…		…
453	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")
454	to it. All such attachable objects support the following methods.	630	to it. All such attachable objects support the following methods.
455		631
456	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>
457	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
458	crossfire+).	634	Crossfire TRT).
459		635
460	=over 4	636	=over 4
461		637
462	=item $attachable->attach ($attachment, key => $value...)	638	=item $attachable->attach ($attachment, key => $value...)
463		639
…		…
665	_attach $registry, $klass, @attach;	841	_attach $registry, $klass, @attach;
666	}	842	}
667		843
668	$obj->{$name} = \%arg;	844	$obj->{$name} = \%arg;
669	} else {	845	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	846	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	847	}
672		848
673	$obj->{_attachment}{$name} = undef;	849	$obj->{_attachment}{$name} = undef;
674	}	850	}
675		851
…		…
715	";	891	";
716	die if $@;	892	die if $@;
717	}	893	}
718		894
719	our $override;	895	our $override;
720	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?
721		897
722	sub override {	898	sub override {
723	$override = 1;	899	$override = 1;
724	@invoke_results = ();	900	@INVOKE_RESULTS = (@_);
725	}	901	}
726		902
727	sub do_invoke {	903	sub do_invoke {
728	my $event = shift;	904	my $event = shift;
729	my $callbacks = shift;	905	my $callbacks = shift;
730		906
731	@invoke_results = ();	907	@INVOKE_RESULTS = ();
732		908
733	local $override;	909	local $override;
734		910
735	for (@$callbacks) {	911	for (@$callbacks) {
736	eval { &{$_->[1]} };	912	eval { &{$_->[1]} };
…		…
753		929
754	Generate an object-specific event with the given arguments.	930	Generate an object-specific event with the given arguments.
755		931
756	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
757	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
758	results (if you must, access C<@cf::invoke_results> directly).	934	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		935
760	=back	936	=back
761		937
762	=cut	938	=cut
763		939
764	#############################################################################	940	#############################################################################
765	# 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	}
766		953
767	sub reattach {	954	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	955	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	956	my ($obj) = @_;
770		957
…		…
877	warn sprintf "loading %s (%d)\n",	1064	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av || []};	1065	$filename, length $data, scalar @{$av || []};
879	return ($data, $av);	1066	return ($data, $av);
880	}	1067	}
881		1068
		1069	=head2 COMMAND CALLBACKS
		1070
		1071	=over 4
		1072
		1073	=cut
		1074
882	#############################################################################	1075	#############################################################################
883	# command handling &c	1076	# command handling &c
884		1077
885	=item cf::register_command $name => \&callback($ob,$args);	1078	=item cf::register_command $name => \&callback($ob,$args);
886		1079
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1091	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1092	}
900		1093
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1094	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1095
903	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.
904		1101
905	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
906	called.	1103	called.
907		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
908	=cut	1116	=cut
909		1117
910	sub register_extcmd {	1118	sub register_extcmd {
911	my ($name, $cb) = @_;	1119	my ($name, $cb) = @_;
912		1120
913	$EXTCMD{$name} = $cb;	1121	$EXTCMD{$name} = $cb;
		1122	}
		1123
		1124	sub register_exticmd {
		1125	my ($name, $cb) = @_;
		1126
		1127	$EXTICMD{$name} = $cb;
914	}	1128	}
915		1129
916	cf::player->attach (	1130	cf::player->attach (
917	on_command => sub {	1131	on_command => sub {
918	my ($pl, $name, $params) = @_;	1132	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1141	cf::override;
928	},	1142	},
929	on_extcmd => sub {	1143	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1144	my ($pl, $buf) = @_;
931		1145
932	my $msg = eval { from_json $buf };	1146	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1147
934	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
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1154	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1155	my @reply = $cb->($pl, @payload);
		1156
937	$pl->ext_reply ($msg->{msgid}, %reply);	1157	$pl->ext_reply ($reply, @reply)
938	}	1158	if $reply;
939	}	1159	}
940	} else {	1160	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1161	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1162	}
943		1163
…		…
967	path => $path,	1187	path => $path,
968	base => $base,	1188	base => $base,
969	pkg => $pkg,	1189	pkg => $pkg,
970	);	1190	);
971		1191
972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }	1192	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
973	if $source =~ /^#!.*?perl.*?#\s*(.*)$/;	1193	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
974		1194
975	$ext{source} =	1195	$ext{source} =
976	"package $pkg; use strict; use utf8;\n"	1196	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	1197	. "#line 1 \"$path\"\n{\n"
978	. $source	1198	. $source
…		…
984	my %done;	1204	my %done;
985	while (%todo) {	1205	while (%todo) {
986	my $progress;	1206	my $progress;
987		1207
988	while (my ($k, $v) = each %todo) {	1208	while (my ($k, $v) = each %todo) {
989	for (split /,\s*/, $ext{meta}{depends}) {	1209	for (split /,\s*/, $v->{meta}{depends}) {
990	goto skip	1210	goto skip
991	unless exists $done{$_};	1211	unless exists $done{$_};
992	}	1212	}
993		1213
994	warn "... loading '$k' into '$v->{pkg}'\n";	1214	warn "... loading '$k' into '$v->{pkg}'\n";
995		1215
996	unless (eval $v->{source}) {	1216	unless (eval $v->{source}) {
997	my $msg = $@ ? "$v->{path}: $@\n"	1217	my $msg = $@ ? "$v->{path}: $@\n"
998	: "extension disabled.\n";	1218	: "$v->{base}: extension inactive.\n";
999		1219
1000	if (exists $v->{meta}{mandatory}) {	1220	if (exists $v->{meta}{mandatory}) {
1001	warn $msg;	1221	warn $msg;
1002	warn "mandatory extension failed to load, exiting.\n";	1222	warn "mandatory extension failed to load, exiting.\n";
1003	exit 1;	1223	exit 1;
1004	}	1224	}
1005		1225
1006	die $msg;	1226	warn $msg;
1007	}	1227	}
1008		1228
1009	$done{$k} = delete $todo{$k};	1229	$done{$k} = delete $todo{$k};
1010	push @EXTS, $v->{pkg};	1230	push @EXTS, $v->{pkg};
		1231	$progress = 1;
1011	}	1232	}
1012		1233
1013	skip:	1234	skip:
1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"	1235	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1015	unless $progress;	1236	unless $progress;
1016	}	1237	}
1017	};	1238	};
1018	}	1239	}
1019		1240
1020	#############################################################################	1241	#############################################################################
		1242
		1243	=back
1021		1244
1022	=head2 CORE EXTENSIONS	1245	=head2 CORE EXTENSIONS
1023		1246
1024	Functions and methods that extend core crossfire objects.	1247	Functions and methods that extend core crossfire objects.
1025		1248
…		…
1112	$cf::PLAYER{$login} = $self;	1335	$cf::PLAYER{$login} = $self;
1113		1336
1114	$self	1337	$self
1115	}	1338	}
1116		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
1117	=item $pl->quit_character	1350	=item $pl->quit_character
1118		1351
1119	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
1120	be destroyed. May block for a long time.	1353	be destroyed. May block for a long time.
1121		1354
…		…
1213	}	1446	}
1214		1447
1215	\@paths	1448	\@paths
1216	}	1449	}
1217		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
1218	=item $player->ext_reply ($msgid, %msg)	1501	=item $player->ext_reply ($msgid, @msg)
1219		1502
1220	Sends an ext reply to the player.	1503	Sends an ext reply to the player.
1221		1504
1222	=cut	1505	=cut
1223		1506
1224	sub ext_reply($$%) {	1507	sub ext_reply($$@) {
1225	my ($self, $id, %msg) = @_;	1508	my ($self, $id, @msg) = @_;
1226		1509
1227	$msg{msgid} = $id;	1510	$self->ns->ext_reply ($id, @msg)
1228
1229	$self->send ("ext " . cf::to_json \%msg);
1230	}	1511	}
1231		1512
1232	=item $player->ext_event ($type, %msg)	1513	=item $player->ext_msg ($type, @msg)
1233		1514
1234	Sends an ext event to the client.	1515	Sends an ext event to the client.
1235		1516
1236	=cut	1517	=cut
1237		1518
1238	sub ext_event($$%) {	1519	sub ext_msg($$@) {
1239	my ($self, $type, %msg) = @_;	1520	my ($self, $type, @msg) = @_;
1240		1521
1241	$self->ns->ext_event ($type, %msg);	1522	$self->ns->ext_msg ($type, @msg);
1242	}	1523	}
1243		1524
1244	=head3 cf::region	1525	=head3 cf::region
1245		1526
1246	=over 4	1527	=over 4
…		…
1249		1530
1250	package cf::region;	1531	package cf::region;
1251		1532
1252	=item cf::region::find_by_path $path	1533	=item cf::region::find_by_path $path
1253		1534
1254	Tries to decuce the probable region for a map knowing only its path.	1535	Tries to decuce the likely region for a map knowing only its path.
1255		1536
1256	=cut	1537	=cut
1257		1538
1258	sub find_by_path($) {	1539	sub find_by_path($) {
1259	my ($path) = @_;	1540	my ($path) = @_;
1260		1541
1261	my ($match, $specificity);	1542	my ($match, $specificity);
1262		1543
1263	for my $region (list) {	1544	for my $region (list) {
1264	if ($region->match && $path =~ $region->match) {	1545	if ($region->{match} && $path =~ $region->{match}) {
1265	($match, $specificity) = ($region, $region->specificity)	1546	($match, $specificity) = ($region, $region->specificity)
1266	if $region->specificity > $specificity;	1547	if $region->specificity > $specificity;
1267	}	1548	}
1268	}	1549	}
1269		1550
…		…
1389	$self->init; # pass $1 etc.	1670	$self->init; # pass $1 etc.
1390	return $self;	1671	return $self;
1391	}	1672	}
1392	}	1673	}
1393		1674
1394	Carp::carp "unable to resolve path '$path' (base '$base').";	1675	Carp::cluck "unable to resolve path '$path' (base '$base').";
1395	()	1676	()
1396	}	1677	}
1397		1678
1398	sub init {	1679	sub init {
1399	my ($self) = @_;	1680	my ($self) = @_;
…		…
1607	$self->set_darkness_map;	1888	$self->set_darkness_map;
1608	Coro::cede;	1889	Coro::cede;
1609	$self->activate;	1890	$self->activate;
1610	}	1891	}
1611		1892
		1893	$self->{last_save} = $cf::RUNTIME;
		1894	$self->last_access ($cf::RUNTIME);
		1895
1612	$self->in_memory (cf::MAP_IN_MEMORY);	1896	$self->in_memory (cf::MAP_IN_MEMORY);
1613	}	1897	}
1614		1898
1615	$self->post_load;	1899	$self->post_load;
1616	}	1900	}
…		…
1626		1910
1627	$self	1911	$self
1628	}	1912	}
1629		1913
1630	# find and load all maps in the 3x3 area around a map	1914	# find and load all maps in the 3x3 area around a map
1631	sub load_diag {	1915	sub load_neighbours {
1632	my ($map) = @_;	1916	my ($map) = @_;
1633		1917
1634	my @diag; # diagonal neighbours	1918	my @neigh; # diagonal neighbours
1635		1919
1636	for (0 .. 3) {	1920	for (0 .. 3) {
1637	my $neigh = $map->tile_path ($_)	1921	my $neigh = $map->tile_path ($_)
1638	or next;	1922	or next;
1639	$neigh = find $neigh, $map	1923	$neigh = find $neigh, $map
1640	or next;	1924	or next;
1641	$neigh->load;	1925	$neigh->load;
1642		1926
		1927	push @neigh,
1643	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1928	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1644	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1929	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1645	}	1930	}
1646		1931
1647	for (@diag) {	1932	for (grep defined $_->[0], @neigh) {
		1933	my ($path, $origin) = @$_;
1648	my $neigh = find @$_	1934	my $neigh = find $path, $origin
1649	or next;	1935	or next;
1650	$neigh->load;	1936	$neigh->load;
1651	}	1937	}
1652	}	1938	}
1653		1939
…		…
1677		1963
1678	undef $MAP_PREFETCH{$path};	1964	undef $MAP_PREFETCH{$path};
1679	$MAP_PREFETCHER ||= cf::async {	1965	$MAP_PREFETCHER ||= cf::async {
1680	while (%MAP_PREFETCH) {	1966	while (%MAP_PREFETCH) {
1681	for my $path (keys %MAP_PREFETCH) {	1967	for my $path (keys %MAP_PREFETCH) {
1682	my $map = find $path	1968	if (my $map = find $path) {
1683	or next;
1684	$map->load;	1969	$map->load;
		1970	}
1685		1971
1686	delete $MAP_PREFETCH{$path};	1972	delete $MAP_PREFETCH{$path};
1687	}	1973	}
1688	}	1974	}
1689	undef $MAP_PREFETCHER;	1975	undef $MAP_PREFETCHER;
…		…
1911		2197
1912	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2198	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1913		2199
1914	if ($self->{record_replies}) {	2200	if ($self->{record_replies}) {
1915	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2201	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2202
1916	} 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 {
1917	$msg = $npc->name . " says: $msg" if $npc;	2211	$msg = $npc->name . " says: $msg" if $npc;
1918	$self->message ($msg, $flags);	2212	$self->message ($msg, $flags);
		2213	}
1919	}	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 (@_);
1920	}	2225	}
1921		2226
1922	=item $player_object->may ("access")	2227	=item $player_object->may ("access")
1923		2228
1924	Returns wether the given player is authorized to access resource "access"	2229	Returns wether the given player is authorized to access resource "access"
…		…
2003	# use -1 or undef as default coordinates, not 0, 0	2308	# use -1 or undef as default coordinates, not 0, 0
2004	($x, $y) = ($map->enter_x, $map->enter_y)	2309	($x, $y) = ($map->enter_x, $map->enter_y)
2005	if $x <=0 && $y <= 0;	2310	if $x <=0 && $y <= 0;
2006		2311
2007	$map->load;	2312	$map->load;
2008	$map->load_diag;	2313	$map->load_neighbours;
2009		2314
2010	return unless $self->contr->active;	2315	return unless $self->contr->active;
2011	$self->activate_recursive;	2316	$self->activate_recursive;
2012		2317
2013	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2318	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2014	$self->enter_map ($map, $x, $y);	2319	$self->enter_map ($map, $x, $y);
2015	}	2320	}
2016		2321
2017	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2322	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
2018		2323
2019	Moves the player to the given map-path and coordinates by first freezing	2324	Moves the player to the given map-path and coordinates by first freezing
2020	her, loading and preparing them map, calling the provided $check callback	2325	her, loading and preparing them map, calling the provided $check callback
2021	that has to return the map if sucecssful, and then unfreezes the player on	2326	that has to return the map if sucecssful, and then unfreezes the player on
2022	the new (success) or old (failed) map position.	2327	the new (success) or old (failed) map position. In either case, $done will
		2328	be called at the end of this process.
2023		2329
2024	=cut	2330	=cut
2025		2331
2026	our $GOTOGEN;	2332	our $GOTOGEN;
2027		2333
2028	sub cf::object::player::goto {	2334	sub cf::object::player::goto {
2029	my ($self, $path, $x, $y, $check) = @_;	2335	my ($self, $path, $x, $y, $check, $done) = @_;
2030		2336
2031	# do generation counting so two concurrent goto's will be executed in-order	2337	# do generation counting so two concurrent goto's will be executed in-order
2032	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2338	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2033		2339
2034	$self->enter_link;	2340	$self->enter_link;
…		…
2054		2360
2055	if ($gen == $self->{_goto_generation}) {	2361	if ($gen == $self->{_goto_generation}) {
2056	delete $self->{_goto_generation};	2362	delete $self->{_goto_generation};
2057	$self->leave_link ($map, $x, $y);	2363	$self->leave_link ($map, $x, $y);
2058	}	2364	}
		2365
		2366	$done->() if $done;
2059	})->prio (1);	2367	})->prio (1);
2060	}	2368	}
2061		2369
2062	=item $player_object->enter_exit ($exit_object)	2370	=item $player_object->enter_exit ($exit_object)
2063		2371
…		…
2132	my $hp = $exit->stats->hp;	2440	my $hp = $exit->stats->hp;
2133	my $sp = $exit->stats->sp;	2441	my $sp = $exit->stats->sp;
2134		2442
2135	$self->enter_link;	2443	$self->enter_link;
2136		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
2137	(async {	2449	(async {
2138	$self->deactivate_recursive; # just to be sure	2450	$self->deactivate_recursive; # just to be sure
2139	unless (eval {	2451	unless (eval {
2140	$self->goto ($slaying, $hp, $sp);	2452	$self->goto ($slaying, $hp, $sp);
2141		2453
…		…
2168		2480
2169	utf8::encode $text;	2481	utf8::encode $text;
2170	$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);
2171	}	2483	}
2172		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
2173	=item $client->ext_event ($type, %msg)	2547	=item $client->ext_msg ($type, @msg)
2174		2548
2175	Sends an exti event to the client.	2549	Sends an ext event to the client.
2176		2550
2177	=cut	2551	=cut
2178		2552
2179	sub cf::client::ext_event($$%) {	2553	sub cf::client::ext_msg($$@) {
2180	my ($self, $type, %msg) = @_;	2554	my ($self, $type, @msg) = @_;
2181		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
2182	$msg{msgtype} = "event_$type";	2561	push @msg, msgtype => "event_$type";
2183	$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	}
2184	}	2582	}
2185		2583
2186	=item $success = $client->query ($flags, "text", \&cb)	2584	=item $success = $client->query ($flags, "text", \&cb)
2187		2585
2188	Queues a query to the client, calling the given callback with	2586	Queues a query to the client, calling the given callback with
2189	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>,
2190	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>.
2191		2589
2192	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
2193	reliable at some point in the future.	2591	become reliable at some point in the future.
2194		2592
2195	=cut	2593	=cut
2196		2594
2197	sub cf::client::query {	2595	sub cf::client::query {
2198	my ($self, $flags, $text, $cb) = @_;	2596	my ($self, $flags, $text, $cb) = @_;
…		…
2206	utf8::encode $text;	2604	utf8::encode $text;
2207	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2605	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2208		2606
2209	$self->send_packet ($self->{query_queue}[0][0])	2607	$self->send_packet ($self->{query_queue}[0][0])
2210	if @{ $self->{query_queue} } == 1;	2608	if @{ $self->{query_queue} } == 1;
		2609
		2610	1
2211	}	2611	}
2212		2612
2213	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	},
2214	on_reply => sub {	2619	on_reply => sub {
2215	my ($ns, $msg) = @_;	2620	my ($ns, $msg) = @_;
2216		2621
2217	# this weird shuffling is so that direct followup queries	2622	# this weird shuffling is so that direct followup queries
2218	# get handled first	2623	# get handled first
…		…
2230	} else {	2635	} else {
2231	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2636	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2232	}	2637	}
2233	}	2638	}
2234	},	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	},
2235	);	2663	);
2236		2664
2237	=item $client->async (\&cb)	2665	=item $client->async (\&cb)
2238		2666
2239	Create a new coroutine, running the specified callback. The coroutine will	2667	Create a new coroutine, running the specified callback. The coroutine will
…		…
2280	our $safe = new Safe "safe";	2708	our $safe = new Safe "safe";
2281	our $safe_hole = new Safe::Hole;	2709	our $safe_hole = new Safe::Hole;
2282		2710
2283	$SIG{FPE} = 'IGNORE';	2711	$SIG{FPE} = 'IGNORE';
2284		2712
2285	$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	));
2286		2718
2287	# here we export the classes and methods available to script code	2719	# here we export the classes and methods available to script code
2288		2720
2289	=pod	2721	=pod
2290		2722
2291	The following functions and methods are available within a safe environment:	2723	The following functions and methods are available within a safe environment:
2292		2724
2293	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
2294	cf::object::player player	2729	cf::object::player
2295	cf::player peaceful	2730	player
2296	cf::map trigger	2731
		2732	cf::player
		2733	peaceful
		2734
		2735	cf::map
		2736	trigger
2297		2737
2298	=cut	2738	=cut
2299		2739
2300	for (	2740	for (
2301	["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)],
2302	["cf::object::player" => qw(player)],	2743	["cf::object::player" => qw(player)],
2303	["cf::player" => qw(peaceful)],	2744	["cf::player" => qw(peaceful)],
2304	["cf::map" => qw(trigger)],	2745	["cf::map" => qw(trigger)],
2305	) {	2746	) {
2306	no strict 'refs';	2747	no strict 'refs';
…		…
2377	=back	2818	=back
2378		2819
2379	=cut	2820	=cut
2380		2821
2381	#############################################################################	2822	#############################################################################
2382
2383	=head2 EXTENSION DATABASE SUPPORT
2384
2385	Crossfire maintains a very simple database for extension use. It can
2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2387	convert to/from binary).
2388
2389	The parameter C<$family> should best start with the name of the extension
2390	using it, it should be unique.
2391
2392	=over 4
2393
2394	=item $value = cf::db_get $family => $key
2395
2396	Returns a single value from the database.
2397
2398	=item cf::db_put $family => $key => $value
2399
2400	Stores the given C<$value> in the family.
2401
2402	=cut
2403
2404	our $DB;
2405
2406	sub db_init {
2407	unless ($DB) {
2408	$DB = BDB::db_create $DB_ENV;
2409
2410	cf::sync_job {
2411	eval {
2412	$DB->set_flags (BDB::CHKSUM);
2413
2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2415	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2416	cf::cleanup "db_open(db): $!" if $!;
2417	};
2418	cf::cleanup "db_open(db): $@" if $@;
2419	};
2420	}
2421	}
2422
2423	sub db_get($$) {
2424	my $key = "$_[0]/$_[1]";
2425
2426	cf::sync_job {
2427	BDB::db_get $DB, undef, $key, my $data;
2428
2429	$! ? ()
2430	: $data
2431	}
2432	}
2433
2434	sub db_put($$$) {
2435	BDB::dbreq_pri 4;
2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2437	}
2438
2439	=item cf::cache $id => [$paths...], $processversion => $process
2440
2441	Generic caching function that returns the value of the resource $id,
2442	caching and regenerating as required.
2443
2444	This function can block.
2445
2446	=cut
2447
2448	sub cache {
2449	my ($id, $src, $processversion, $process) = @_;
2450
2451	my $meta =
2452	join "\x00",
2453	$processversion,
2454	map {
2455	aio_stat $_
2456	and Carp::croak "$_: $!";
2457
2458	($_, (stat _)[7,9])
2459	} @$src;
2460
2461	my $dbmeta = db_get cache => "$id/meta";
2462	if ($dbmeta ne $meta) {
2463	# changed, we may need to process
2464
2465	my @data;
2466	my $md5;
2467
2468	for (0 .. $#$src) {
2469	0 <= aio_load $src->[$_], $data[$_]
2470	or Carp::croak "$src->[$_]: $!";
2471	}
2472
2473	# if processing is expensive, check
2474	# checksum first
2475	if (1) {
2476	$md5 =
2477	join "\x00",
2478	$processversion,
2479	map {
2480	Coro::cede;
2481	($src->[$_], Digest::MD5::md5_hex $data[$_])
2482	} 0.. $#$src;
2483
2484
2485	my $dbmd5 = db_get cache => "$id/md5";
2486	if ($dbmd5 eq $md5) {
2487	db_put cache => "$id/meta", $meta;
2488
2489	return db_get cache => "$id/data";
2490	}
2491	}
2492
2493	my $t1 = Time::HiRes::time;
2494	my $data = $process->(\@data);
2495	my $t2 = Time::HiRes::time;
2496
2497	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2498
2499	db_put cache => "$id/data", $data;
2500	db_put cache => "$id/md5" , $md5;
2501	db_put cache => "$id/meta", $meta;
2502
2503	return $data;
2504	}
2505
2506	db_get cache => "$id/data"
2507	}
2508
2509	=item fork_call { }, $args
2510
2511	Executes the given code block with the given arguments in a seperate
2512	process, returning the results. Everything must be serialisable with
2513	Coro::Storable. May, of course, block. Note that the executed sub may
2514	never block itself or use any form of Event handling.
2515
2516	=cut
2517
2518	sub fork_call(&@) {
2519	my ($cb, @args) = @_;
2520
2521	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2522	# or die "socketpair: $!";
2523	pipe my $fh1, my $fh2
2524	or die "pipe: $!";
2525
2526	if (my $pid = fork) {
2527	close $fh2;
2528
2529	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2530	$res = Coro::Storable::thaw $res;
2531
2532	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2533
2534	die $$res unless "ARRAY" eq ref $res;
2535
2536	return wantarray ? @$res : $res->[-1];
2537	} else {
2538	reset_signals;
2539	local $SIG{__WARN__};
2540	local $SIG{__DIE__};
2541	eval {
2542	close $fh1;
2543
2544	my @res = eval { $cb->(@args) };
2545	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2546	};
2547
2548	warn $@ if $@;
2549	_exit 0;
2550	}
2551	}
2552
2553	#############################################################################
2554	# the server's init and main functions	2823	# the server's init and main functions
2555		2824
2556	sub load_facedata($) {	2825	sub load_facedata($) {
2557	my ($path) = @_;	2826	my ($path) = @_;
		2827
		2828	my $enc = JSON::XS->new->utf8->canonical;
2558		2829
2559	warn "loading facedata from $path\n";	2830	warn "loading facedata from $path\n";
2560		2831
2561	my $facedata;	2832	my $facedata;
2562	0 < aio_load $path, $facedata	2833	0 < aio_load $path, $facedata
…		…
2565	$facedata = Coro::Storable::thaw $facedata;	2836	$facedata = Coro::Storable::thaw $facedata;
2566		2837
2567	$facedata->{version} == 2	2838	$facedata->{version} == 2
2568	or cf::cleanup "$path: version mismatch, cannot proceed.";	2839	or cf::cleanup "$path: version mismatch, cannot proceed.";
2569		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 $_, 1 .. cf::settings->max_level]),
		2845	};
		2846	cf::cede_to_tick;
		2847
2570	{	2848	{
2571	my $faces = $facedata->{faceinfo};	2849	my $faces = $facedata->{faceinfo};
2572		2850
2573	while (my ($face, $info) = each %$faces) {	2851	while (my ($face, $info) = each %$faces) {
2574	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2852	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2575	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2853	cf::face::set_visibility $idx, $info->{visibility};
		2854	cf::face::set_magicmap $idx, $info->{magicmap};
2576	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2855	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2577	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2856	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2578	Coro::cede;	2857
		2858	cf::cede_to_tick;
2579	}	2859	}
2580		2860
2581	while (my ($face, $info) = each %$faces) {	2861	while (my ($face, $info) = each %$faces) {
2582	next unless $info->{smooth};	2862	next unless $info->{smooth};
2583	my $idx = cf::face::find $face	2863	my $idx = cf::face::find $face
2584	or next;	2864	or next;
2585	if (my $smooth = cf::face::find $info->{smooth}) {	2865	if (my $smooth = cf::face::find $info->{smooth}) {
		2866	cf::face::set_smooth $idx, $smooth;
2586	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2867	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2587	} else {	2868	} else {
2588	warn "smooth face '$info->{smooth}' not found for face '$face'";	2869	warn "smooth face '$info->{smooth}' not found for face '$face'";
2589	}	2870	}
2590	Coro::cede;	2871
		2872	cf::cede_to_tick;
2591	}	2873	}
2592	}	2874	}
2593		2875
2594	{	2876	{
2595	my $anims = $facedata->{animinfo};	2877	my $anims = $facedata->{animinfo};
2596		2878
2597	while (my ($anim, $info) = each %$anims) {	2879	while (my ($anim, $info) = each %$anims) {
2598	cf::anim::set $anim, $info->{frames}, $info->{facings};	2880	cf::anim::set $anim, $info->{frames}, $info->{facings};
2599	Coro::cede;	2881	cf::cede_to_tick;
2600	}	2882	}
2601		2883
2602	cf::anim::invalidate_all; # d'oh	2884	cf::anim::invalidate_all; # d'oh
2603	}	2885	}
2604		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	} else {
		2908	$data = $info->{data};
		2909	}
		2910
		2911	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2912	cf::face::set_type $idx, $info->{type};
		2913
		2914	cf::cede_to_tick;
		2915	}
		2916
		2917	if ($soundconf) {
		2918	$soundconf = $enc->decode (delete $soundconf->{data});
		2919
		2920	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2921	my $sound = $soundconf->{compat}[$_]
		2922	or next;
		2923
		2924	my $face = cf::face::find "sound/$sound->[1]";
		2925	cf::sound::set $sound->[0] => $face;
		2926	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2927	}
		2928
		2929	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2930	my $face = cf::face::find "sound/$v";
		2931	cf::sound::set $k => $face;
		2932	}
		2933	}
		2934	}
		2935
2605	1	2936	1
2606	}	2937	}
		2938
		2939	register_exticmd fx_want => sub {
		2940	my ($ns, $want) = @_;
		2941
		2942	while (my ($k, $v) = each %$want) {
		2943	$ns->fx_want ($k, $v);
		2944	}
		2945	};
2607		2946
2608	sub reload_regions {	2947	sub reload_regions {
2609	load_resource_file "$MAPDIR/regions"	2948	load_resource_file "$MAPDIR/regions"
2610	or die "unable to load regions file\n";	2949	or die "unable to load regions file\n";
		2950
		2951	for (cf::region::list) {
		2952	$_->{match} = qr/$_->{match}/
		2953	if exists $_->{match};
		2954	}
2611	}	2955	}
2612		2956
2613	sub reload_facedata {	2957	sub reload_facedata {
2614	load_facedata "$DATADIR/facedata"	2958	load_facedata "$DATADIR/facedata"
2615	or die "unable to load facedata\n";	2959	or die "unable to load facedata\n";
2616	}	2960	}
2617		2961
2618	sub reload_archetypes {	2962	sub reload_archetypes {
		2963	load_resource_file "$DATADIR/archetypes"
		2964	or die "unable to load archetypes\n";
		2965	#d# NEED to laod twice to resolve forward references
		2966	# this really needs to be done in an extra post-pass
		2967	# (which needs to be synchronous, so solve it differently)
2619	load_resource_file "$DATADIR/archetypes"	2968	load_resource_file "$DATADIR/archetypes"
2620	or die "unable to load archetypes\n";	2969	or die "unable to load archetypes\n";
2621	}	2970	}
2622		2971
2623	sub reload_treasures {	2972	sub reload_treasures {
…		…
2695	},	3044	},
2696	);	3045	);
2697	}	3046	}
2698	}	3047	}
2699		3048
		3049	sub write_runtime {
		3050	my $runtime = "$LOCALDIR/runtime";
		3051
		3052	# first touch the runtime file to show we are still running:
		3053	# the fsync below can take a very very long time.
		3054
		3055	IO::AIO::aio_utime $runtime, undef, undef;
		3056
		3057	my $guard = cf::lock_acquire "write_runtime";
		3058
		3059	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3060	or return;
		3061
		3062	my $value = $cf::RUNTIME + 90 + 10;
		3063	# 10 is the runtime save interval, for a monotonic clock
		3064	# 60 allows for the watchdog to kill the server.
		3065
		3066	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3067	and return;
		3068
		3069	# always fsync - this file is important
		3070	aio_fsync $fh
		3071	and return;
		3072
		3073	# touch it again to show we are up-to-date
		3074	aio_utime $fh, undef, undef;
		3075
		3076	close $fh
		3077	or return;
		3078
		3079	aio_rename "$runtime~", $runtime
		3080	and return;
		3081
		3082	warn "runtime file written.\n";
		3083
		3084	1
		3085	}
		3086
2700	sub emergency_save() {	3087	sub emergency_save() {
2701	my $freeze_guard = cf::freeze_mainloop;	3088	my $freeze_guard = cf::freeze_mainloop;
2702		3089
2703	warn "enter emergency perl save\n";	3090	warn "enter emergency perl save\n";
2704		3091
…		…
2779	%EXT_CORO = ();	3166	%EXT_CORO = ();
2780		3167
2781	warn "removing commands";	3168	warn "removing commands";
2782	%COMMAND = ();	3169	%COMMAND = ();
2783		3170
2784	warn "removing ext commands";	3171	warn "removing ext/exti commands";
2785	%EXTCMD = ();	3172	%EXTCMD = ();
		3173	%EXTICMD = ();
2786		3174
2787	warn "unloading/nuking all extensions";	3175	warn "unloading/nuking all extensions";
2788	for my $pkg (@EXTS) {	3176	for my $pkg (@EXTS) {
2789	warn "... unloading $pkg";	3177	warn "... unloading $pkg";
2790		3178

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