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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.276 by root, Sun Jun 10 04:05:47 2007 UTC vs.
Revision 1.338 by root, Tue Aug 21 01:07:47 2007 UTC

…		…
10	use Event;	10	use Event;
11	use Opcode;	11	use Opcode;
12	use Safe;	12	use Safe;
13	use Safe::Hole;	13	use Safe::Hole;
14		14
15	use Coro 3.61 ();	15	use Coro 3.64 ();
16	use Coro::State;	16	use Coro::State;
17	use Coro::Handle;	17	use Coro::Handle;
18	use Coro::Event;	18	use Coro::Event;
19	use Coro::Timer;	19	use Coro::Timer;
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
		24	use Coro::Util ();
24		25
		26	use JSON::XS 1.4 ();
25	use BDB ();	27	use BDB ();
26	use Data::Dumper;	28	use Data::Dumper;
27	use Digest::MD5;	29	use Digest::MD5;
28	use Fcntl;	30	use Fcntl;
29	use YAML::Syck ();	31	use YAML::Syck ();
30	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
31	use Time::HiRes;	33	use Time::HiRes;
32	use Compress::LZF;	34	use Compress::LZF;
		35	use Digest::MD5 ();
33		36
34	# configure various modules to our taste	37	# configure various modules to our taste
35	#	38	#
36	$Storable::canonical = 1; # reduce rsync transfers	39	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	52	our %COMMAND = ();
50	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
51		54
52	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
56		60
57	our $RELOAD; # number of reloads so far	61	our $RELOAD; # number of reloads so far
58	our @EVENT;	62	our @EVENT;
…		…
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
		1154	my @reply;
		1155
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1156	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1157	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1158	}
		1159
		1160	$pl->ext_reply ($reply, @reply)
		1161	if $reply;
		1162
940	} else {	1163	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1164	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1165	}
943		1166
944	cf::override;	1167	cf::override;
945	},	1168	},
946	);	1169	);
947		1170
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 {	1171	sub load_extensions {
		1172	cf::sync_job {
		1173	my %todo;
		1174
983	for my $ext (<$LIBDIR/*.ext>) {	1175	for my $path (<$LIBDIR/*.ext>) {
984	next unless -r $ext;	1176	next unless -r $path;
985	eval {	1177
986	load_extension $ext;	1178	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1179	my $base = $1;
		1180	my $pkg = $1;
		1181	$pkg =~ s/[^[:word:]]/_/g;
		1182	$pkg = "ext::$pkg";
		1183
		1184	open my $fh, "<:utf8", $path
		1185	or die "$path: $!";
		1186
		1187	my $source = do { local $/; <$fh> };
		1188
		1189	my %ext = (
		1190	path => $path,
		1191	base => $base,
		1192	pkg => $pkg,
		1193	);
		1194
		1195	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1196	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1197
		1198	$ext{source} =
		1199	"package $pkg; use strict; use utf8;\n"
		1200	. "#line 1 \"$path\"\n{\n"
		1201	. $source
		1202	. "\n};\n1";
		1203
		1204	$todo{$base} = \%ext;
		1205	}
		1206
		1207	my %done;
		1208	while (%todo) {
		1209	my $progress;
		1210
		1211	while (my ($k, $v) = each %todo) {
		1212	for (split /,\s*/, $v->{meta}{depends}) {
		1213	goto skip
		1214	unless exists $done{$_};
		1215	}
		1216
		1217	warn "... loading '$k' into '$v->{pkg}'\n";
		1218
		1219	unless (eval $v->{source}) {
		1220	my $msg = $@ ? "$v->{path}: $@\n"
		1221	: "$v->{base}: extension inactive.\n";
		1222
		1223	if (exists $v->{meta}{mandatory}) {
		1224	warn $msg;
		1225	warn "mandatory extension failed to load, exiting.\n";
		1226	exit 1;
		1227	}
		1228
		1229	warn $msg;
		1230	}
		1231
		1232	$done{$k} = delete $todo{$k};
		1233	push @EXTS, $v->{pkg};
		1234	$progress = 1;
987	1	1235	}
988	} or warn "$ext not loaded: $@";	1236
		1237	skip:
		1238	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1239	unless $progress;
		1240	}
989	}	1241	};
990	}	1242	}
991		1243
992	#############################################################################	1244	#############################################################################
		1245
		1246	=back
993		1247
994	=head2 CORE EXTENSIONS	1248	=head2 CORE EXTENSIONS
995		1249
996	Functions and methods that extend core crossfire objects.	1250	Functions and methods that extend core crossfire objects.
997		1251
…		…
1084	$cf::PLAYER{$login} = $self;	1338	$cf::PLAYER{$login} = $self;
1085		1339
1086	$self	1340	$self
1087	}	1341	}
1088		1342
		1343	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1344
		1345	=cut
		1346
		1347	sub send_msg {
		1348	my $ns = shift->ns
		1349	or return;
		1350	$ns->send_msg (@_);
		1351	}
		1352
1089	=item $pl->quit_character	1353	=item $pl->quit_character
1090		1354
1091	Nukes the player without looking back. If logged in, the connection will	1355	Nukes the player without looking back. If logged in, the connection will
1092	be destroyed. May block for a long time.	1356	be destroyed. May block for a long time.
1093		1357
…		…
1185	}	1449	}
1186		1450
1187	\@paths	1451	\@paths
1188	}	1452	}
1189		1453
		1454	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1455
		1456	Expand crossfire pod fragments into protocol xml.
		1457
		1458	=cut
		1459
		1460	sub expand_cfpod {
		1461	((my $self), (local $_)) = @_;
		1462
		1463	# escape & and <
		1464	s/&/&amp;/g;
		1465	s/(?<![BIUGH])</&lt;/g;
		1466
		1467	# this is buggy, it needs to properly take care of nested <'s
		1468
		1469	1 while
		1470	# replace B<>, I<>, U<> etc.
		1471	s/B<([^\>]*)>/<b>$1<\/b>/
		1472	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1473	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1474	# replace G<male|female> tags
		1475	|| s{G<([^>|]*)\|([^>]*)>}{
		1476	$self->gender ? $2 : $1
		1477	}ge
		1478	# replace H<hint text>
		1479	|| s{H<([^\>]*)>}
		1480	{
		1481	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1482	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1483	"")
		1484	[$self->{hintmode}]
		1485	}ge;
		1486
		1487	# create single paragraphs (very hackish)
		1488	s/(?<=\S)\n(?=\w)/ /g;
		1489
		1490	# compress some whitespace
		1491	s/\s+\n/\n/g; # ws line-ends
		1492	s/\n\n+/\n/g; # double lines
		1493	s/^\n+//; # beginning lines
		1494	s/\n+$//; # ending lines
		1495
		1496	$_
		1497	}
		1498
		1499	sub hintmode {
		1500	$_[0]{hintmode} = $_[1] if @_ > 1;
		1501	$_[0]{hintmode}
		1502	}
		1503
1190	=item $player->ext_reply ($msgid, %msg)	1504	=item $player->ext_reply ($msgid, @msg)
1191		1505
1192	Sends an ext reply to the player.	1506	Sends an ext reply to the player.
1193		1507
1194	=cut	1508	=cut
1195		1509
1196	sub ext_reply($$%) {	1510	sub ext_reply($$@) {
1197	my ($self, $id, %msg) = @_;	1511	my ($self, $id, @msg) = @_;
1198		1512
1199	$msg{msgid} = $id;	1513	$self->ns->ext_reply ($id, @msg)
1200
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1514	}
1203		1515
1204	=item $player->ext_event ($type, %msg)	1516	=item $player->ext_msg ($type, @msg)
1205		1517
1206	Sends an ext event to the client.	1518	Sends an ext event to the client.
1207		1519
1208	=cut	1520	=cut
1209		1521
1210	sub ext_event($$%) {	1522	sub ext_msg($$@) {
1211	my ($self, $type, %msg) = @_;	1523	my ($self, $type, @msg) = @_;
1212		1524
1213	$self->ns->ext_event ($type, %msg);	1525	$self->ns->ext_msg ($type, @msg);
1214	}	1526	}
1215		1527
1216	=head3 cf::region	1528	=head3 cf::region
1217		1529
1218	=over 4	1530	=over 4
…		…
1221		1533
1222	package cf::region;	1534	package cf::region;
1223		1535
1224	=item cf::region::find_by_path $path	1536	=item cf::region::find_by_path $path
1225		1537
1226	Tries to decuce the probable region for a map knowing only its path.	1538	Tries to decuce the likely region for a map knowing only its path.
1227		1539
1228	=cut	1540	=cut
1229		1541
1230	sub find_by_path($) {	1542	sub find_by_path($) {
1231	my ($path) = @_;	1543	my ($path) = @_;
1232		1544
1233	my ($match, $specificity);	1545	my ($match, $specificity);
1234		1546
1235	for my $region (list) {	1547	for my $region (list) {
1236	if ($region->match && $path =~ $region->match) {	1548	if ($region->{match} && $path =~ $region->{match}) {
1237	($match, $specificity) = ($region, $region->specificity)	1549	($match, $specificity) = ($region, $region->specificity)
1238	if $region->specificity > $specificity;	1550	if $region->specificity > $specificity;
1239	}	1551	}
1240	}	1552	}
1241		1553
…		…
1361	$self->init; # pass $1 etc.	1673	$self->init; # pass $1 etc.
1362	return $self;	1674	return $self;
1363	}	1675	}
1364	}	1676	}
1365		1677
1366	Carp::carp "unable to resolve path '$path' (base '$base').";	1678	Carp::cluck "unable to resolve path '$path' (base '$base').";
1367	()	1679	()
1368	}	1680	}
1369		1681
1370	sub init {	1682	sub init {
1371	my ($self) = @_;	1683	my ($self) = @_;
…		…
1579	$self->set_darkness_map;	1891	$self->set_darkness_map;
1580	Coro::cede;	1892	Coro::cede;
1581	$self->activate;	1893	$self->activate;
1582	}	1894	}
1583		1895
		1896	$self->{last_save} = $cf::RUNTIME;
		1897	$self->last_access ($cf::RUNTIME);
		1898
1584	$self->in_memory (cf::MAP_IN_MEMORY);	1899	$self->in_memory (cf::MAP_IN_MEMORY);
1585	}	1900	}
1586		1901
1587	$self->post_load;	1902	$self->post_load;
1588	}	1903	}
…		…
1598		1913
1599	$self	1914	$self
1600	}	1915	}
1601		1916
1602	# find and load all maps in the 3x3 area around a map	1917	# find and load all maps in the 3x3 area around a map
1603	sub load_diag {	1918	sub load_neighbours {
1604	my ($map) = @_;	1919	my ($map) = @_;
1605		1920
1606	my @diag; # diagonal neighbours	1921	my @neigh; # diagonal neighbours
1607		1922
1608	for (0 .. 3) {	1923	for (0 .. 3) {
1609	my $neigh = $map->tile_path ($_)	1924	my $neigh = $map->tile_path ($_)
1610	or next;	1925	or next;
1611	$neigh = find $neigh, $map	1926	$neigh = find $neigh, $map
1612	or next;	1927	or next;
1613	$neigh->load;	1928	$neigh->load;
1614		1929
		1930	push @neigh,
1615	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1931	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1616	[$neigh->tile_path (($_ + 1) % 4), $neigh];	1932	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1617	}	1933	}
1618		1934
1619	for (@diag) {	1935	for (grep defined $_->[0], @neigh) {
		1936	my ($path, $origin) = @$_;
1620	my $neigh = find @$_	1937	my $neigh = find $path, $origin
1621	or next;	1938	or next;
1622	$neigh->load;	1939	$neigh->load;
1623	}	1940	}
1624	}	1941	}
1625		1942
…		…
1649		1966
1650	undef $MAP_PREFETCH{$path};	1967	undef $MAP_PREFETCH{$path};
1651	$MAP_PREFETCHER ||= cf::async {	1968	$MAP_PREFETCHER ||= cf::async {
1652	while (%MAP_PREFETCH) {	1969	while (%MAP_PREFETCH) {
1653	for my $path (keys %MAP_PREFETCH) {	1970	for my $path (keys %MAP_PREFETCH) {
1654	my $map = find $path	1971	if (my $map = find $path) {
1655	or next;
1656	$map->load;	1972	$map->load;
		1973	}
1657		1974
1658	delete $MAP_PREFETCH{$path};	1975	delete $MAP_PREFETCH{$path};
1659	}	1976	}
1660	}	1977	}
1661	undef $MAP_PREFETCHER;	1978	undef $MAP_PREFETCHER;
…		…
1779	}	2096	}
1780		2097
1781	=item $maps = cf::map::tmp_maps	2098	=item $maps = cf::map::tmp_maps
1782		2099
1783	Returns an arrayref with all map paths of currently instantiated and saved	2100	Returns an arrayref with all map paths of currently instantiated and saved
1784	maps.	2101	maps. May block.
1785		2102
1786	=cut	2103	=cut
1787		2104
1788	sub tmp_maps() {	2105	sub tmp_maps() {
1789	[	2106	[
1790	map {	2107	map {
1791	utf8::decode $_;	2108	utf8::decode $_;
1792	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o	2109	/\.map$/
1793	? normalise $_	2110	? normalise $_
1794	: ()	2111	: ()
1795	} @{ aio_readdir $TMPDIR or [] }	2112	} @{ aio_readdir $TMPDIR or [] }
1796	]	2113	]
1797	}	2114	}
1798		2115
		2116	=item $maps = cf::map::random_maps
		2117
		2118	Returns an arrayref with all map paths of currently instantiated and saved
		2119	random maps. May block.
		2120
		2121	=cut
		2122
		2123	sub random_maps() {
		2124	[
		2125	map {
		2126	utf8::decode $_;
		2127	/\.map$/
		2128	? normalise "?random/$_"
		2129	: ()
		2130	} @{ aio_readdir $RANDOMDIR or [] }
		2131	]
		2132	}
		2133
1799	=item cf::map::unique_maps	2134	=item cf::map::unique_maps
1800		2135
1801	Returns an arrayref of paths of all shared maps that have	2136	Returns an arrayref of paths of all shared maps that have
1802	instantiated unique items. May block.	2137	instantiated unique items. May block.
1803		2138
…		…
1805		2140
1806	sub unique_maps() {	2141	sub unique_maps() {
1807	[	2142	[
1808	map {	2143	map {
1809	utf8::decode $_;	2144	utf8::decode $_;
1810	!/\.(?:pst|meta)$/ && /^$PATH_SEP/o	2145	/\.map$/
1811	? normalise $_	2146	? normalise $_
1812	: ()	2147	: ()
1813	} @{ aio_readdir $UNIQUEDIR or [] }	2148	} @{ aio_readdir $UNIQUEDIR or [] }
1814	]	2149	]
1815	}	2150	}
…		…
1865		2200
1866	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2201	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1867		2202
1868	if ($self->{record_replies}) {	2203	if ($self->{record_replies}) {
1869	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2204	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2205
1870	} else {	2206	} else {
		2207	my $pl = $self->contr;
		2208
		2209	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2210	my $dialog = $pl->{npc_dialog};
		2211	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2212
		2213	} else {
1871	$msg = $npc->name . " says: $msg" if $npc;	2214	$msg = $npc->name . " says: $msg" if $npc;
1872	$self->message ($msg, $flags);	2215	$self->message ($msg, $flags);
		2216	}
1873	}	2217	}
		2218	}
		2219
		2220	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2221
		2222	=cut
		2223
		2224	sub cf::object::send_msg {
		2225	my $pl = shift->contr
		2226	or return;
		2227	$pl->send_msg (@_);
1874	}	2228	}
1875		2229
1876	=item $player_object->may ("access")	2230	=item $player_object->may ("access")
1877		2231
1878	Returns wether the given player is authorized to access resource "access"	2232	Returns wether the given player is authorized to access resource "access"
…		…
1957	# use -1 or undef as default coordinates, not 0, 0	2311	# use -1 or undef as default coordinates, not 0, 0
1958	($x, $y) = ($map->enter_x, $map->enter_y)	2312	($x, $y) = ($map->enter_x, $map->enter_y)
1959	if $x <=0 && $y <= 0;	2313	if $x <=0 && $y <= 0;
1960		2314
1961	$map->load;	2315	$map->load;
1962	$map->load_diag;	2316	$map->load_neighbours;
1963		2317
1964	return unless $self->contr->active;	2318	return unless $self->contr->active;
1965	$self->activate_recursive;	2319	$self->activate_recursive;
1966		2320
1967	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2321	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1968	$self->enter_map ($map, $x, $y);	2322	$self->enter_map ($map, $x, $y);
1969	}	2323	}
1970		2324
1971	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2325	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1972		2326
1973	Moves the player to the given map-path and coordinates by first freezing	2327	Moves the player to the given map-path and coordinates by first freezing
1974	her, loading and preparing them map, calling the provided $check callback	2328	her, loading and preparing them map, calling the provided $check callback
1975	that has to return the map if sucecssful, and then unfreezes the player on	2329	that has to return the map if sucecssful, and then unfreezes the player on
1976	the new (success) or old (failed) map position.	2330	the new (success) or old (failed) map position. In either case, $done will
		2331	be called at the end of this process.
1977		2332
1978	=cut	2333	=cut
1979		2334
1980	our $GOTOGEN;	2335	our $GOTOGEN;
1981		2336
1982	sub cf::object::player::goto {	2337	sub cf::object::player::goto {
1983	my ($self, $path, $x, $y, $check) = @_;	2338	my ($self, $path, $x, $y, $check, $done) = @_;
1984		2339
1985	# do generation counting so two concurrent goto's will be executed in-order	2340	# do generation counting so two concurrent goto's will be executed in-order
1986	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2341	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1987		2342
1988	$self->enter_link;	2343	$self->enter_link;
…		…
2008		2363
2009	if ($gen == $self->{_goto_generation}) {	2364	if ($gen == $self->{_goto_generation}) {
2010	delete $self->{_goto_generation};	2365	delete $self->{_goto_generation};
2011	$self->leave_link ($map, $x, $y);	2366	$self->leave_link ($map, $x, $y);
2012	}	2367	}
		2368
		2369	$done->() if $done;
2013	})->prio (1);	2370	})->prio (1);
2014	}	2371	}
2015		2372
2016	=item $player_object->enter_exit ($exit_object)	2373	=item $player_object->enter_exit ($exit_object)
2017		2374
…		…
2086	my $hp = $exit->stats->hp;	2443	my $hp = $exit->stats->hp;
2087	my $sp = $exit->stats->sp;	2444	my $sp = $exit->stats->sp;
2088		2445
2089	$self->enter_link;	2446	$self->enter_link;
2090		2447
		2448	# if exit is damned, update players death & WoR home-position
		2449	$self->contr->savebed ($slaying, $hp, $sp)
		2450	if $exit->flag (FLAG_DAMNED);
		2451
2091	(async {	2452	(async {
2092	$self->deactivate_recursive; # just to be sure	2453	$self->deactivate_recursive; # just to be sure
2093	unless (eval {	2454	unless (eval {
2094	$self->goto ($slaying, $hp, $sp);	2455	$self->goto ($slaying, $hp, $sp);
2095		2456
…		…
2122		2483
2123	utf8::encode $text;	2484	utf8::encode $text;
2124	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2485	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2125	}	2486	}
2126		2487
		2488	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2489
		2490	Send a drawinfo or msg packet to the client, formatting the msg for the
		2491	client if neccessary. C<$type> should be a string identifying the type of
		2492	the message, with C<log> being the default. If C<$color> is negative, suppress
		2493	the message unless the client supports the msg packet.
		2494
		2495	=cut
		2496
		2497	sub cf::client::send_msg {
		2498	my ($self, $channel, $msg, $color, @extra) = @_;
		2499
		2500	$msg = $self->pl->expand_cfpod ($msg);
		2501
		2502	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2503
		2504	if (ref $channel) {
		2505	# send meta info to client, if not yet sent
		2506	unless (exists $self->{channel}{$channel->{id}}) {
		2507	$self->{channel}{$channel->{id}} = $channel;
		2508	$self->ext_msg (channel_info => $channel);
		2509	}
		2510
		2511	$channel = $channel->{id};
		2512	}
		2513
		2514	return unless @extra || length $msg;
		2515
		2516	if ($self->can_msg) {
		2517	# default colour, mask it out
		2518	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2519	if $color & cf::NDI_DEF;
		2520
		2521	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2522	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2523	} else {
		2524	if ($color >= 0) {
		2525	# replace some tags by gcfclient-compatible ones
		2526	for ($msg) {
		2527	1 while
		2528	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2529	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2530	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2531	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2532	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2533	}
		2534
		2535	$color &= cf::NDI_COLOR_MASK;
		2536
		2537	utf8::encode $msg;
		2538
		2539	if (0 && $msg =~ /\[/) {
		2540	# COMMAND/INFO
		2541	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2542	} else {
		2543	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2544	$self->send_packet ("drawinfo $color $msg")
		2545	}
		2546	}
		2547	}
		2548	}
		2549
2127	=item $client->ext_event ($type, %msg)	2550	=item $client->ext_msg ($type, @msg)
2128		2551
2129	Sends an exti event to the client.	2552	Sends an ext event to the client.
2130		2553
2131	=cut	2554	=cut
2132		2555
2133	sub cf::client::ext_event($$%) {	2556	sub cf::client::ext_msg($$@) {
2134	my ($self, $type, %msg) = @_;	2557	my ($self, $type, @msg) = @_;
2135		2558
		2559	my $extcmd = $self->extcmd;
		2560
		2561	if ($extcmd == 2) {
		2562	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2563	} elsif ($extcmd == 1) { # TODO: remove
2136	$msg{msgtype} = "event_$type";	2564	push @msg, msgtype => "event_$type";
2137	$self->send_packet ("ext " . cf::to_json \%msg);	2565	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2566	}
		2567	}
		2568
		2569	=item $client->ext_reply ($msgid, @msg)
		2570
		2571	Sends an ext reply to the client.
		2572
		2573	=cut
		2574
		2575	sub cf::client::ext_reply($$@) {
		2576	my ($self, $id, @msg) = @_;
		2577
		2578	if ($self->extcmd == 2) {
		2579	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2580	} elsif ($self->ns->extcmd == 1) {
		2581	#TODO: version 1, remove
		2582	unshift @msg, msgtype => "reply", msgid => $id;
		2583	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2584	}
2138	}	2585	}
2139		2586
2140	=item $success = $client->query ($flags, "text", \&cb)	2587	=item $success = $client->query ($flags, "text", \&cb)
2141		2588
2142	Queues a query to the client, calling the given callback with	2589	Queues a query to the client, calling the given callback with
2143	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2590	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2144	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2591	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2145		2592
2146	Queries can fail, so check the return code. Or don't, as queries will become	2593	Queries can fail, so check the return code. Or don't, as queries will
2147	reliable at some point in the future.	2594	become reliable at some point in the future.
2148		2595
2149	=cut	2596	=cut
2150		2597
2151	sub cf::client::query {	2598	sub cf::client::query {
2152	my ($self, $flags, $text, $cb) = @_;	2599	my ($self, $flags, $text, $cb) = @_;
…		…
2160	utf8::encode $text;	2607	utf8::encode $text;
2161	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2608	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2162		2609
2163	$self->send_packet ($self->{query_queue}[0][0])	2610	$self->send_packet ($self->{query_queue}[0][0])
2164	if @{ $self->{query_queue} } == 1;	2611	if @{ $self->{query_queue} } == 1;
		2612
		2613	1
2165	}	2614	}
2166		2615
2167	cf::client->attach (	2616	cf::client->attach (
		2617	on_connect => sub {
		2618	my ($ns) = @_;
		2619
		2620	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2621	},
2168	on_reply => sub {	2622	on_reply => sub {
2169	my ($ns, $msg) = @_;	2623	my ($ns, $msg) = @_;
2170		2624
2171	# this weird shuffling is so that direct followup queries	2625	# this weird shuffling is so that direct followup queries
2172	# get handled first	2626	# get handled first
…		…
2184	} else {	2638	} else {
2185	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2639	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2186	}	2640	}
2187	}	2641	}
2188	},	2642	},
		2643	on_exticmd => sub {
		2644	my ($ns, $buf) = @_;
		2645
		2646	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2647
		2648	if (ref $msg) {
		2649	my ($type, $reply, @payload) =
		2650	"ARRAY" eq ref $msg
		2651	? @$msg
		2652	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2653
		2654	my @reply;
		2655
		2656	if (my $cb = $EXTICMD{$type}) {
		2657	@reply = $cb->($ns, @payload);
		2658	}
		2659
		2660	$ns->ext_reply ($reply, @reply)
		2661	if $reply;
		2662
		2663	} else {
		2664	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2665	}
		2666
		2667	cf::override;
		2668	},
2189	);	2669	);
2190		2670
2191	=item $client->async (\&cb)	2671	=item $client->async (\&cb)
2192		2672
2193	Create a new coroutine, running the specified callback. The coroutine will	2673	Create a new coroutine, running the specified callback. The coroutine will
…		…
2234	our $safe = new Safe "safe";	2714	our $safe = new Safe "safe";
2235	our $safe_hole = new Safe::Hole;	2715	our $safe_hole = new Safe::Hole;
2236		2716
2237	$SIG{FPE} = 'IGNORE';	2717	$SIG{FPE} = 'IGNORE';
2238		2718
2239	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2719	$safe->permit_only (Opcode::opset qw(
		2720	:base_core :base_mem :base_orig :base_math
		2721	grepstart grepwhile mapstart mapwhile
		2722	sort time
		2723	));
2240		2724
2241	# here we export the classes and methods available to script code	2725	# here we export the classes and methods available to script code
2242		2726
2243	=pod	2727	=pod
2244		2728
2245	The following functions and methods are available within a safe environment:	2729	The following functions and methods are available within a safe environment:
2246		2730
2247	cf::object contr pay_amount pay_player map	2731	cf::object
		2732	contr pay_amount pay_player map x y force_find force_add
		2733	insert remove name archname title slaying race
		2734
2248	cf::object::player player	2735	cf::object::player
2249	cf::player peaceful	2736	player
2250	cf::map trigger	2737
		2738	cf::player
		2739	peaceful
		2740
		2741	cf::map
		2742	trigger
2251		2743
2252	=cut	2744	=cut
2253		2745
2254	for (	2746	for (
2255	["cf::object" => qw(contr pay_amount pay_player map)],	2747	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2748	insert remove inv name archname title slaying race)],
2256	["cf::object::player" => qw(player)],	2749	["cf::object::player" => qw(player)],
2257	["cf::player" => qw(peaceful)],	2750	["cf::player" => qw(peaceful)],
2258	["cf::map" => qw(trigger)],	2751	["cf::map" => qw(trigger)],
2259	) {	2752	) {
2260	no strict 'refs';	2753	no strict 'refs';
…		…
2331	=back	2824	=back
2332		2825
2333	=cut	2826	=cut
2334		2827
2335	#############################################################################	2828	#############################################################################
2336
2337	=head2 EXTENSION DATABASE SUPPORT
2338
2339	Crossfire maintains a very simple database for extension use. It can
2340	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2341	convert to/from binary).
2342
2343	The parameter C<$family> should best start with the name of the extension
2344	using it, it should be unique.
2345
2346	=over 4
2347
2348	=item $value = cf::db_get $family => $key
2349
2350	Returns a single value from the database.
2351
2352	=item cf::db_put $family => $key => $value
2353
2354	Stores the given C<$value> in the family.
2355
2356	=cut
2357
2358	our $DB;
2359
2360	sub db_init {
2361	unless ($DB) {
2362	$DB = BDB::db_create $DB_ENV;
2363
2364	cf::sync_job {
2365	eval {
2366	$DB->set_flags (BDB::CHKSUM);
2367
2368	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2369	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2370	cf::cleanup "db_open(db): $!" if $!;
2371	};
2372	cf::cleanup "db_open(db): $@" if $@;
2373	};
2374	}
2375	}
2376
2377	sub db_get($$) {
2378	my $key = "$_[0]/$_[1]";
2379
2380	cf::sync_job {
2381	BDB::db_get $DB, undef, $key, my $data;
2382
2383	$! ? ()
2384	: $data
2385	}
2386	}
2387
2388	sub db_put($$$) {
2389	BDB::dbreq_pri 4;
2390	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2391	}
2392
2393	=item cf::cache $id => [$paths...], $processversion => $process
2394
2395	Generic caching function that returns the value of the resource $id,
2396	caching and regenerating as required.
2397
2398	This function can block.
2399
2400	=cut
2401
2402	sub cache {
2403	my ($id, $src, $processversion, $process) = @_;
2404
2405	my $meta =
2406	join "\x00",
2407	$processversion,
2408	map {
2409	aio_stat $_
2410	and Carp::croak "$_: $!";
2411
2412	($_, (stat _)[7,9])
2413	} @$src;
2414
2415	my $dbmeta = db_get cache => "$id/meta";
2416	if ($dbmeta ne $meta) {
2417	# changed, we may need to process
2418
2419	my @data;
2420	my $md5;
2421
2422	for (0 .. $#$src) {
2423	0 <= aio_load $src->[$_], $data[$_]
2424	or Carp::croak "$src->[$_]: $!";
2425	}
2426
2427	# if processing is expensive, check
2428	# checksum first
2429	if (1) {
2430	$md5 =
2431	join "\x00",
2432	$processversion,
2433	map {
2434	Coro::cede;
2435	($src->[$_], Digest::MD5::md5_hex $data[$_])
2436	} 0.. $#$src;
2437
2438
2439	my $dbmd5 = db_get cache => "$id/md5";
2440	if ($dbmd5 eq $md5) {
2441	db_put cache => "$id/meta", $meta;
2442
2443	return db_get cache => "$id/data";
2444	}
2445	}
2446
2447	my $t1 = Time::HiRes::time;
2448	my $data = $process->(\@data);
2449	my $t2 = Time::HiRes::time;
2450
2451	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2452
2453	db_put cache => "$id/data", $data;
2454	db_put cache => "$id/md5" , $md5;
2455	db_put cache => "$id/meta", $meta;
2456
2457	return $data;
2458	}
2459
2460	db_get cache => "$id/data"
2461	}
2462
2463	=item fork_call { }, $args
2464
2465	Executes the given code block with the given arguments in a seperate
2466	process, returning the results. Everything must be serialisable with
2467	Coro::Storable. May, of course, block. Note that the executed sub may
2468	never block itself or use any form of Event handling.
2469
2470	=cut
2471
2472	sub fork_call(&@) {
2473	my ($cb, @args) = @_;
2474
2475	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2476	# or die "socketpair: $!";
2477	pipe my $fh1, my $fh2
2478	or die "pipe: $!";
2479
2480	if (my $pid = fork) {
2481	close $fh2;
2482
2483	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2484	$res = Coro::Storable::thaw $res;
2485
2486	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2487
2488	die $$res unless "ARRAY" eq ref $res;
2489
2490	return wantarray ? @$res : $res->[-1];
2491	} else {
2492	reset_signals;
2493	local $SIG{__WARN__};
2494	local $SIG{__DIE__};
2495	eval {
2496	close $fh1;
2497
2498	my @res = eval { $cb->(@args) };
2499	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2500	};
2501
2502	warn $@ if $@;
2503	_exit 0;
2504	}
2505	}
2506
2507	#############################################################################
2508	# the server's init and main functions	2829	# the server's init and main functions
2509		2830
2510	sub load_facedata($) {	2831	sub load_facedata($) {
2511	my ($path) = @_;	2832	my ($path) = @_;
		2833
		2834	my $enc = JSON::XS->new->utf8->canonical;
2512		2835
2513	warn "loading facedata from $path\n";	2836	warn "loading facedata from $path\n";
2514		2837
2515	my $facedata;	2838	my $facedata;
2516	0 < aio_load $path, $facedata	2839	0 < aio_load $path, $facedata
…		…
2519	$facedata = Coro::Storable::thaw $facedata;	2842	$facedata = Coro::Storable::thaw $facedata;
2520		2843
2521	$facedata->{version} == 2	2844	$facedata->{version} == 2
2522	or cf::cleanup "$path: version mismatch, cannot proceed.";	2845	or cf::cleanup "$path: version mismatch, cannot proceed.";
2523		2846
		2847	# patch in the exptable
		2848	$facedata->{resource}{"res/exp_table"} = {
		2849	type => FT_RSRC,
		2850	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		2851	};
		2852	cf::cede_to_tick;
		2853
2524	{	2854	{
2525	my $faces = $facedata->{faceinfo};	2855	my $faces = $facedata->{faceinfo};
2526		2856
2527	while (my ($face, $info) = each %$faces) {	2857	while (my ($face, $info) = each %$faces) {
2528	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2858	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2529	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2859	cf::face::set_visibility $idx, $info->{visibility};
		2860	cf::face::set_magicmap $idx, $info->{magicmap};
2530	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2861	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2531	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2862	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2532	Coro::cede;	2863
		2864	cf::cede_to_tick;
2533	}	2865	}
2534		2866
2535	while (my ($face, $info) = each %$faces) {	2867	while (my ($face, $info) = each %$faces) {
2536	next unless $info->{smooth};	2868	next unless $info->{smooth};
2537	my $idx = cf::face::find $face	2869	my $idx = cf::face::find $face
2538	or next;	2870	or next;
2539	if (my $smooth = cf::face::find $info->{smooth}) {	2871	if (my $smooth = cf::face::find $info->{smooth}) {
		2872	cf::face::set_smooth $idx, $smooth;
2540	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2873	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2541	} else {	2874	} else {
2542	warn "smooth face '$info->{smooth}' not found for face '$face'";	2875	warn "smooth face '$info->{smooth}' not found for face '$face'";
2543	}	2876	}
2544	Coro::cede;	2877
		2878	cf::cede_to_tick;
2545	}	2879	}
2546	}	2880	}
2547		2881
2548	{	2882	{
2549	my $anims = $facedata->{animinfo};	2883	my $anims = $facedata->{animinfo};
2550		2884
2551	while (my ($anim, $info) = each %$anims) {	2885	while (my ($anim, $info) = each %$anims) {
2552	cf::anim::set $anim, $info->{frames}, $info->{facings};	2886	cf::anim::set $anim, $info->{frames}, $info->{facings};
2553	Coro::cede;	2887	cf::cede_to_tick;
2554	}	2888	}
2555		2889
2556	cf::anim::invalidate_all; # d'oh	2890	cf::anim::invalidate_all; # d'oh
2557	}	2891	}
2558		2892
		2893	{
		2894	# TODO: for gcfclient pleasure, we should give resources
		2895	# that gcfclient doesn't grok a >10000 face index.
		2896	my $res = $facedata->{resource};
		2897
		2898	my $soundconf = delete $res->{"res/sound.conf"};
		2899
		2900	while (my ($name, $info) = each %$res) {
		2901	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2902	my $data;
		2903
		2904	if ($info->{type} & 1) {
		2905	# prepend meta info
		2906
		2907	my $meta = $enc->encode ({
		2908	name => $name,
		2909	%{ $info->{meta} || {} },
		2910	});
		2911
		2912	$data = pack "(w/a*)*", $meta, $info->{data};
		2913	} else {
		2914	$data = $info->{data};
		2915	}
		2916
		2917	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2918	cf::face::set_type $idx, $info->{type};
		2919
		2920	cf::cede_to_tick;
		2921	}
		2922
		2923	if ($soundconf) {
		2924	$soundconf = $enc->decode (delete $soundconf->{data});
		2925
		2926	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2927	my $sound = $soundconf->{compat}[$_]
		2928	or next;
		2929
		2930	my $face = cf::face::find "sound/$sound->[1]";
		2931	cf::sound::set $sound->[0] => $face;
		2932	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2933	}
		2934
		2935	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2936	my $face = cf::face::find "sound/$v";
		2937	cf::sound::set $k => $face;
		2938	}
		2939	}
		2940	}
		2941
2559	1	2942	1
2560	}	2943	}
		2944
		2945	register_exticmd fx_want => sub {
		2946	my ($ns, $want) = @_;
		2947
		2948	while (my ($k, $v) = each %$want) {
		2949	$ns->fx_want ($k, $v);
		2950	}
		2951	};
2561		2952
2562	sub reload_regions {	2953	sub reload_regions {
2563	load_resource_file "$MAPDIR/regions"	2954	load_resource_file "$MAPDIR/regions"
2564	or die "unable to load regions file\n";	2955	or die "unable to load regions file\n";
		2956
		2957	for (cf::region::list) {
		2958	$_->{match} = qr/$_->{match}/
		2959	if exists $_->{match};
		2960	}
2565	}	2961	}
2566		2962
2567	sub reload_facedata {	2963	sub reload_facedata {
2568	load_facedata "$DATADIR/facedata"	2964	load_facedata "$DATADIR/facedata"
2569	or die "unable to load facedata\n";	2965	or die "unable to load facedata\n";
2570	}	2966	}
2571		2967
2572	sub reload_archetypes {	2968	sub reload_archetypes {
		2969	load_resource_file "$DATADIR/archetypes"
		2970	or die "unable to load archetypes\n";
		2971	#d# NEED to laod twice to resolve forward references
		2972	# this really needs to be done in an extra post-pass
		2973	# (which needs to be synchronous, so solve it differently)
2573	load_resource_file "$DATADIR/archetypes"	2974	load_resource_file "$DATADIR/archetypes"
2574	or die "unable to load archetypes\n";	2975	or die "unable to load archetypes\n";
2575	}	2976	}
2576		2977
2577	sub reload_treasures {	2978	sub reload_treasures {
…		…
2649	},	3050	},
2650	);	3051	);
2651	}	3052	}
2652	}	3053	}
2653		3054
		3055	sub write_runtime {
		3056	my $runtime = "$LOCALDIR/runtime";
		3057
		3058	# first touch the runtime file to show we are still running:
		3059	# the fsync below can take a very very long time.
		3060
		3061	IO::AIO::aio_utime $runtime, undef, undef;
		3062
		3063	my $guard = cf::lock_acquire "write_runtime";
		3064
		3065	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3066	or return;
		3067
		3068	my $value = $cf::RUNTIME + 90 + 10;
		3069	# 10 is the runtime save interval, for a monotonic clock
		3070	# 60 allows for the watchdog to kill the server.
		3071
		3072	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3073	and return;
		3074
		3075	# always fsync - this file is important
		3076	aio_fsync $fh
		3077	and return;
		3078
		3079	# touch it again to show we are up-to-date
		3080	aio_utime $fh, undef, undef;
		3081
		3082	close $fh
		3083	or return;
		3084
		3085	aio_rename "$runtime~", $runtime
		3086	and return;
		3087
		3088	warn "runtime file written.\n";
		3089
		3090	1
		3091	}
		3092
2654	sub emergency_save() {	3093	sub emergency_save() {
2655	my $freeze_guard = cf::freeze_mainloop;	3094	my $freeze_guard = cf::freeze_mainloop;
2656		3095
2657	warn "enter emergency perl save\n";	3096	warn "enter emergency perl save\n";
2658		3097
…		…
2733	%EXT_CORO = ();	3172	%EXT_CORO = ();
2734		3173
2735	warn "removing commands";	3174	warn "removing commands";
2736	%COMMAND = ();	3175	%COMMAND = ();
2737		3176
2738	warn "removing ext commands";	3177	warn "removing ext/exti commands";
2739	%EXTCMD = ();	3178	%EXTCMD = ();
		3179	%EXTICMD = ();
2740		3180
2741	warn "unloading/nuking all extensions";	3181	warn "unloading/nuking all extensions";
2742	for my $pkg (@EXTS) {	3182	for my $pkg (@EXTS) {
2743	warn "... unloading $pkg";	3183	warn "... unloading $pkg";
2744		3184

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