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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.267 by root, Sat May 19 00:08:11 2007 UTC vs.
Revision 1.313 by root, Sun Jul 22 14:17:58 2007 UTC

…		…
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		24
		25	use JSON::XS 1.4 ();
25	use BDB ();	26	use BDB ();
26	use Data::Dumper;	27	use Data::Dumper;
27	use Digest::MD5;	28	use Digest::MD5;
28	use Fcntl;	29	use Fcntl;
29	use YAML::Syck ();	30	use YAML::Syck ();
30	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
31	use Time::HiRes;	32	use Time::HiRes;
32	use Compress::LZF;	33	use Compress::LZF;
		34	use Digest::MD5 ();
33		35
34	# configure various modules to our taste	36	# configure various modules to our taste
35	#	37	#
36	$Storable::canonical = 1; # reduce rsync transfers	38	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	51	our %COMMAND = ();
50	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
51		53
52	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
56		59
57	our $RELOAD; # number of reloads so far	60	our $RELOAD; # number of reloads so far
58	our @EVENT;	61	our @EVENT;
…		…
164		167
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	168	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	169	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.	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
		177
169	=back	178	=back
170		179
171	=cut	180	=cut
172		181
173	BEGIN {	182	BEGIN {
…		…
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		203
194	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	205	# within the Safe compartment.
196	for my $pkg (qw(	206	for my $pkg (qw(
197	cf::global cf::attachable	207	cf::global cf::attachable
…		…
205	}	215	}
206		216
207	$Event::DIED = sub {	217	$Event::DIED = sub {
208	warn "error in event callback: @_";	218	warn "error in event callback: @_";
209	};	219	};
		220
		221	#############################################################################
210		222
211	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
212		224
213	=over 4	225	=over 4
214		226
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	246	$d
235	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
236	}	248	}
237		249
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
241		251
242	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
243		253
244	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
245		255
246	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
		257
		258	=cut
		259
		260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		261
		262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
247		264
248	=item cf::lock_wait $string	265	=item cf::lock_wait $string
249		266
250	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
251		268
…		…
317		334
318	BEGIN { *async = \&Coro::async_pool }	335	BEGIN { *async = \&Coro::async_pool }
319		336
320	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
321		338
322	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
325		343
326	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
329	fast or be very important.	347	fast or be very important.
…		…
389	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
390		408
391	$coro	409	$coro
392	}	410	}
393		411
394	sub write_runtime {	412	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		413
397	# first touch the runtime file to show we are still running:	414	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
399		418
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	419	=cut
401	utime undef, undef, $fh;
402	}
403		420
404	my $guard = cf::lock_acquire "write_runtime";	421	sub _store_scalar {
405		422	open my $fh, ">", \my $buf
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	423	or die "fork_call: cannot open fh-to-buf in child : $!";
407	or return;	424	Storable::store_fd $_[0], $fh;
408
409	my $value = $cf::RUNTIME + 90 + 10;
410	# 10 is the runtime save interval, for a monotonic clock
411	# 60 allows for the watchdog to kill the server.
412
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
414	and return;
415
416	# always fsync - this file is important
417	aio_fsync $fh
418	and return;
419
420	# touch it again to show we are up-to-date
421	utime undef, undef, $fh;
422
423	close $fh	425	close $fh;
424	or return;
425		426
426	aio_rename "$runtime~", $runtime	427	$buf
427	and return;	428	}
428		429
429	warn "runtime file written.\n";#d#	430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
430		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
431	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
432	}	588	}
433		589
434	=item cf::datalog type => key => value, ...	590	=item cf::datalog type => key => value, ...
435		591
436	Log a datalog packet of the given type with the given key-value pairs.	592	Log a datalog packet of the given type with the given key-value pairs.
…		…
454	attach callbacks/event handlers (a collection of which is called an "attachment")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
456		612
457	In the following description, CLASS can be any of C<global>, C<object>	613	In the following description, CLASS can be any of C<global>, C<object>
458	C<player>, C<client> or C<map> (i.e. the attachable objects in	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	615	Crossfire TRT).
460		616
461	=over 4	617	=over 4
462		618
463	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
464		620
…		…
666	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
667	}	823	}
668		824
669	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
670	} else {	826	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	828	}
673		829
674	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
675	}	831	}
676		832
…		…
716	";	872	";
717	die if $@;	873	die if $@;
718	}	874	}
719		875
720	our $override;	876	our $override;
721	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
722		878
723	sub override {	879	sub override {
724	$override = 1;	880	$override = 1;
725	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
726	}	882	}
727		883
728	sub do_invoke {	884	sub do_invoke {
729	my $event = shift;	885	my $event = shift;
730	my $callbacks = shift;	886	my $callbacks = shift;
731		887
732	@invoke_results = ();	888	@INVOKE_RESULTS = ();
733		889
734	local $override;	890	local $override;
735		891
736	for (@$callbacks) {	892	for (@$callbacks) {
737	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
754		910
755	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
756		912
757	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
758	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
759	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
760		916
761	=back	917	=back
762		918
763	=cut	919	=cut
764		920
765	#############################################################################	921	#############################################################################
766	# object support	922	# object support
		923	#
		924
		925	sub _can_merge {
		926	my ($ob1, $ob2) = @_;
		927
		928	local $Storable::canonical = 1;
		929	my $fob1 = Storable::freeze $ob1;
		930	my $fob2 = Storable::freeze $ob2;
		931
		932	$fob1 eq $fob2
		933	}
767		934
768	sub reattach {	935	sub reattach {
769	# basically do the same as instantiate, without calling instantiate	936	# basically do the same as instantiate, without calling instantiate
770	my ($obj) = @_;	937	my ($obj) = @_;
771		938
…		…
874	or return;	1041	or return;
875	$av = eval { (Storable::thaw $av)->{objs} };	1042	$av = eval { (Storable::thaw $av)->{objs} };
876	}	1043	}
877		1044
878	warn sprintf "loading %s (%d)\n",	1045	warn sprintf "loading %s (%d)\n",
879	$filename, length $data, scalar @{$av || []};#d#	1046	$filename, length $data, scalar @{$av || []};
880	return ($data, $av);	1047	return ($data, $av);
881	}	1048	}
		1049
		1050	=head2 COMMAND CALLBACKS
		1051
		1052	=over 4
		1053
		1054	=cut
882		1055
883	#############################################################################	1056	#############################################################################
884	# command handling &c	1057	# command handling &c
885		1058
886	=item cf::register_command $name => \&callback($ob,$args);	1059	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1072	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1073	}
901		1074
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1075	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1076
904	Register a callbackf ro execution when the client sends an extcmd packet.	1077	Register a callback for execution when the client sends an (synchronous)
		1078	extcmd packet. Ext commands will be processed in the order they are
		1079	received by the server, like other user commands. The first argument is
		1080	the logged-in player. Ext commands can only be processed after a player
		1081	has logged in successfully.
905		1082
906	If the callback returns something, it is sent back as if reply was being	1083	If the callback returns something, it is sent back as if reply was being
907	called.	1084	called.
908		1085
		1086	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1087
		1088	Register a callback for execution when the client sends an (asynchronous)
		1089	exticmd packet. Exti commands are processed by the server as soon as they
		1090	are received, i.e. out of order w.r.t. other commands. The first argument
		1091	is a client socket. Exti commands can be received anytime, even before
		1092	log-in.
		1093
		1094	If the callback returns something, it is sent back as if reply was being
		1095	called.
		1096
909	=cut	1097	=cut
910		1098
911	sub register_extcmd {	1099	sub register_extcmd {
912	my ($name, $cb) = @_;	1100	my ($name, $cb) = @_;
913		1101
914	$EXTCMD{$name} = $cb;	1102	$EXTCMD{$name} = $cb;
		1103	}
		1104
		1105	sub register_exticmd {
		1106	my ($name, $cb) = @_;
		1107
		1108	$EXTICMD{$name} = $cb;
915	}	1109	}
916		1110
917	cf::player->attach (	1111	cf::player->attach (
918	on_command => sub {	1112	on_command => sub {
919	my ($pl, $name, $params) = @_;	1113	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1122	cf::override;
929	},	1123	},
930	on_extcmd => sub {	1124	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1125	my ($pl, $buf) = @_;
932		1126
933	my $msg = eval { from_json $buf };	1127	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1128
935	if (ref $msg) {	1129	if (ref $msg) {
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1130	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
937	if (my %reply = $cb->($pl, $msg)) {	1131	if (my %reply = $cb->($pl, $msg)) {
938	$pl->ext_reply ($msg->{msgid}, %reply);	1132	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
944		1138
945	cf::override;	1139	cf::override;
946	},	1140	},
947	);	1141	);
948		1142
949	sub load_extension {
950	my ($path) = @_;
951
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
953	my $base = $1;
954	my $pkg = $1;
955	$pkg =~ s/[^[:word:]]/_/g;
956	$pkg = "ext::$pkg";
957
958	warn "... loading '$path' into '$pkg'\n";
959
960	open my $fh, "<:utf8", $path
961	or die "$path: $!";
962
963	my $source =
964	"package $pkg; use strict; use utf8;\n"
965	. "#line 1 \"$path\"\n{\n"
966	. (do { local $/; <$fh> })
967	. "\n};\n1";
968
969	unless (eval $source) {
970	my $msg = $@ ? "$path: $@\n"
971	: "extension disabled.\n";
972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
973	warn $@;
974	warn "mandatory extension failed to load, exiting.\n";
975	exit 1;
976	}
977	die $@;
978	}
979
980	push @EXTS, $pkg;
981	}
982
983	sub load_extensions {	1143	sub load_extensions {
		1144	cf::sync_job {
		1145	my %todo;
		1146
984	for my $ext (<$LIBDIR/*.ext>) {	1147	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1148	next unless -r $path;
986	eval {	1149
987	load_extension $ext;	1150	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1151	my $base = $1;
		1152	my $pkg = $1;
		1153	$pkg =~ s/[^[:word:]]/_/g;
		1154	$pkg = "ext::$pkg";
		1155
		1156	open my $fh, "<:utf8", $path
		1157	or die "$path: $!";
		1158
		1159	my $source = do { local $/; <$fh> };
		1160
		1161	my %ext = (
		1162	path => $path,
		1163	base => $base,
		1164	pkg => $pkg,
		1165	);
		1166
		1167	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1168	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1169
		1170	$ext{source} =
		1171	"package $pkg; use strict; use utf8;\n"
		1172	. "#line 1 \"$path\"\n{\n"
		1173	. $source
		1174	. "\n};\n1";
		1175
		1176	$todo{$base} = \%ext;
		1177	}
		1178
		1179	my %done;
		1180	while (%todo) {
		1181	my $progress;
		1182
		1183	while (my ($k, $v) = each %todo) {
		1184	for (split /,\s*/, $v->{meta}{depends}) {
		1185	goto skip
		1186	unless exists $done{$_};
		1187	}
		1188
		1189	warn "... loading '$k' into '$v->{pkg}'\n";
		1190
		1191	unless (eval $v->{source}) {
		1192	my $msg = $@ ? "$v->{path}: $@\n"
		1193	: "$v->{base}: extension inactive.\n";
		1194
		1195	if (exists $v->{meta}{mandatory}) {
		1196	warn $msg;
		1197	warn "mandatory extension failed to load, exiting.\n";
		1198	exit 1;
		1199	}
		1200
		1201	warn $msg;
		1202	}
		1203
		1204	$done{$k} = delete $todo{$k};
		1205	push @EXTS, $v->{pkg};
		1206	$progress = 1;
988	1	1207	}
989	} or warn "$ext not loaded: $@";	1208
		1209	skip:
		1210	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1211	unless $progress;
		1212	}
990	}	1213	};
991	}	1214	}
992		1215
993	#############################################################################	1216	#############################################################################
		1217
		1218	=back
994		1219
995	=head2 CORE EXTENSIONS	1220	=head2 CORE EXTENSIONS
996		1221
997	Functions and methods that extend core crossfire objects.	1222	Functions and methods that extend core crossfire objects.
998		1223
…		…
1186	}	1411	}
1187		1412
1188	\@paths	1413	\@paths
1189	}	1414	}
1190		1415
		1416	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1417
		1418	Expand crossfire pod fragments into protocol xml.
		1419
		1420	=cut
		1421
		1422	sub expand_cfpod {
		1423	((my $self), (local $_)) = @_;
		1424
		1425	# escape & and <
		1426	s/&/&amp;/g;
		1427	s/(?<![BIUGH])</&lt;/g;
		1428
		1429	# this is buggy, it needs to properly take care of nested <'s
		1430
		1431	1 while
		1432	# replace B<>, I<>, U<> etc.
		1433	s/B<([^\>]*)>/<b>$1<\/b>/
		1434	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1435	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1436	# replace G<male|female> tags
		1437	|| s{G<([^>|]*)\|([^>]*)>}{
		1438	$self->gender ? $2 : $1
		1439	}ge
		1440	# replace H<hint text>
		1441	|| s{H<([^\>]*)>}
		1442	{
		1443	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1444	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1445	"")
		1446	[$self->{hintmode}]
		1447	}ge;
		1448
		1449	# create single paragraphs (very hackish)
		1450	s/(?<=\S)\n(?=\w)/ /g;
		1451
		1452	# compress some whitespace
		1453	s/\s+\n/\n/g; # ws line-ends
		1454	s/\n\n+/\n/g; # double lines
		1455	s/^\n+//; # beginning lines
		1456	s/\n+$//; # ending lines
		1457
		1458	$_
		1459	}
		1460
		1461	sub hintmode {
		1462	$_[0]{hintmode} = $_[1] if @_ > 1;
		1463	$_[0]{hintmode}
		1464	}
		1465
1191	=item $player->ext_reply ($msgid, %msg)	1466	=item $player->ext_reply ($msgid, %msg)
1192		1467
1193	Sends an ext reply to the player.	1468	Sends an ext reply to the player.
1194		1469
1195	=cut	1470	=cut
1196		1471
1197	sub ext_reply($$%) {	1472	sub ext_reply($$%) {
1198	my ($self, $id, %msg) = @_;	1473	my ($self, $id, %msg) = @_;
1199		1474
1200	$msg{msgid} = $id;	1475	$msg{msgid} = $id;
1201		1476	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1202	$self->send ("ext " . cf::to_json \%msg);
1203	}	1477	}
1204		1478
1205	=item $player->ext_event ($type, %msg)	1479	=item $player->ext_event ($type, %msg)
1206		1480
1207	Sends an ext event to the client.	1481	Sends an ext event to the client.
…		…
1222		1496
1223	package cf::region;	1497	package cf::region;
1224		1498
1225	=item cf::region::find_by_path $path	1499	=item cf::region::find_by_path $path
1226		1500
1227	Tries to decuce the probable region for a map knowing only its path.	1501	Tries to decuce the likely region for a map knowing only its path.
1228		1502
1229	=cut	1503	=cut
1230		1504
1231	sub find_by_path($) {	1505	sub find_by_path($) {
1232	my ($path) = @_;	1506	my ($path) = @_;
1233		1507
1234	my ($match, $specificity);	1508	my ($match, $specificity);
1235		1509
1236	for my $region (list) {	1510	for my $region (list) {
1237	if ($region->match && $path =~ $region->match) {	1511	if ($region->{match} && $path =~ $region->{match}) {
1238	($match, $specificity) = ($region, $region->specificity)	1512	($match, $specificity) = ($region, $region->specificity)
1239	if $region->specificity > $specificity;	1513	if $region->specificity > $specificity;
1240	}	1514	}
1241	}	1515	}
1242		1516
…		…
1306	my ($self, $merge) = @_;	1580	my ($self, $merge) = @_;
1307		1581
1308	# we have to keep some variables in memory intact	1582	# we have to keep some variables in memory intact
1309	local $self->{path};	1583	local $self->{path};
1310	local $self->{load_path};	1584	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1585
1314	$self->SUPER::thawer_merge ($merge);	1586	$self->SUPER::thawer_merge ($merge);
1315	}	1587	}
1316		1588
1317	sub normalise {	1589	sub normalise {
…		…
1364	$self->init; # pass $1 etc.	1636	$self->init; # pass $1 etc.
1365	return $self;	1637	return $self;
1366	}	1638	}
1367	}	1639	}
1368		1640
1369	Carp::carp "unable to resolve path '$path' (base '$base').";	1641	Carp::cluck "unable to resolve path '$path' (base '$base').";
1370	()	1642	()
1371	}	1643	}
1372		1644
1373	sub init {	1645	sub init {
1374	my ($self) = @_;	1646	my ($self) = @_;
…		…
1415	sub change_all_map_light {	1687	sub change_all_map_light {
1416	my ($change) = @_;	1688	my ($change) = @_;
1417		1689
1418	$_->change_map_light ($change)	1690	$_->change_map_light ($change)
1419	for grep $_->outdoor, values %cf::MAP;	1691	for grep $_->outdoor, values %cf::MAP;
		1692	}
		1693
		1694	sub decay_objects {
		1695	my ($self) = @_;
		1696
		1697	return if $self->{deny_reset};
		1698
		1699	$self->do_decay_objects;
1420	}	1700	}
1421		1701
1422	sub unlink_save {	1702	sub unlink_save {
1423	my ($self) = @_;	1703	my ($self) = @_;
1424		1704
…		…
1482	$self->load_header_orig	1762	$self->load_header_orig
1483	or return;	1763	or return;
1484	$self->prepare_orig;	1764	$self->prepare_orig;
1485	}	1765	}
1486		1766
		1767	$self->{deny_reset} = 1
		1768	if $self->no_reset;
		1769
1487	$self->default_region (cf::region::find_by_path $self->{path})	1770	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	1771	unless $self->default_region;
1489		1772
1490	1	1773	1
1491	}	1774	}
…		…
1506	$map->{last_save} = $cf::RUNTIME;	1789	$map->{last_save} = $cf::RUNTIME;
1507		1790
1508	$map->load_header	1791	$map->load_header
1509	or return;	1792	or return;
1510		1793
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1794	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	1795	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	1796	#$cf::WAIT_FOR_TICK->wait;
1514	$map->reset;	1797	$map->reset;
1515	undef $guard;	1798	undef $guard;
1516	return find $path;	1799	return find $path;
…		…
1583	my ($self, $ob) = @_;	1866	my ($self, $ob) = @_;
1584		1867
1585	return find "~" . $ob->name . "/" . $self->{path}	1868	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	1869	if $self->per_player;
1587		1870
		1871	# return find "?party/" . $ob->name . "/" . $self->{path}
		1872	# if $self->per_party;
		1873
1588	$self	1874	$self
1589	}	1875	}
1590		1876
1591	# find and load all maps in the 3x3 area around a map	1877	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	1878	sub load_diag {
…		…
1638		1924
1639	undef $MAP_PREFETCH{$path};	1925	undef $MAP_PREFETCH{$path};
1640	$MAP_PREFETCHER ||= cf::async {	1926	$MAP_PREFETCHER ||= cf::async {
1641	while (%MAP_PREFETCH) {	1927	while (%MAP_PREFETCH) {
1642	for my $path (keys %MAP_PREFETCH) {	1928	for my $path (keys %MAP_PREFETCH) {
1643	my $map = find $path	1929	if (my $map = find $path) {
1644	or next;
1645	$map->load;	1930	$map->load;
		1931	}
1646		1932
1647	delete $MAP_PREFETCH{$path};	1933	delete $MAP_PREFETCH{$path};
1648	}	1934	}
1649	}	1935	}
1650	undef $MAP_PREFETCHER;	1936	undef $MAP_PREFETCHER;
…		…
1702		1988
1703	sub reset_at {	1989	sub reset_at {
1704	my ($self) = @_;	1990	my ($self) = @_;
1705		1991
1706	# TODO: safety, remove and allow resettable per-player maps	1992	# TODO: safety, remove and allow resettable per-player maps
1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1708	return 1e99 if $self->{deny_reset};	1993	return 1e99 if $self->{deny_reset};
1709		1994
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1995	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1996	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1712		1997
…		…
1723	my ($self) = @_;	2008	my ($self) = @_;
1724		2009
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	2010	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		2011
1727	return if $self->players;	2012	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		2013
1730	warn "resetting map ", $self->path;#d#	2014	warn "resetting map ", $self->path;
1731		2015
1732	$self->in_memory (cf::MAP_SWAPPED);	2016	$self->in_memory (cf::MAP_SWAPPED);
1733		2017
1734	# need to save uniques path	2018	# need to save uniques path
1735	unless ($self->{deny_save}) {	2019	unless ($self->{deny_save}) {
…		…
1767	$cf::MAP{$self->path} = $self;	2051	$cf::MAP{$self->path} = $self;
1768		2052
1769	$self->reset; # polite request, might not happen	2053	$self->reset; # polite request, might not happen
1770	}	2054	}
1771		2055
		2056	=item $maps = cf::map::tmp_maps
		2057
		2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	maps. May block.
		2060
		2061	=cut
		2062
		2063	sub tmp_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $TMPDIR or [] }
		2071	]
		2072	}
		2073
		2074	=item $maps = cf::map::random_maps
		2075
		2076	Returns an arrayref with all map paths of currently instantiated and saved
		2077	random maps. May block.
		2078
		2079	=cut
		2080
		2081	sub random_maps() {
		2082	[
		2083	map {
		2084	utf8::decode $_;
		2085	/\.map$/
		2086	? normalise "?random/$_"
		2087	: ()
		2088	} @{ aio_readdir $RANDOMDIR or [] }
		2089	]
		2090	}
		2091
1772	=item cf::map::unique_maps	2092	=item cf::map::unique_maps
1773		2093
1774	Returns an arrayref of paths of all shared maps that have	2094	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2095	instantiated unique items. May block.
1776		2096
1777	=cut	2097	=cut
1778		2098
1779	sub unique_maps() {	2099	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2100	[
1781	or return;	2101	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2102	utf8::decode $_;
1787	next if /\.pst$/;	2103	/\.map$/
1788	next unless /^$PATH_SEP/o;	2104	? normalise $_
1789		2105	: ()
1790	push @paths, cf::map::normalise $_;	2106	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2107	]
1792
1793	\@paths
1794	}	2108	}
1795		2109
1796	package cf;	2110	package cf;
1797		2111
1798	=back	2112	=back
…		…
1844		2158
1845	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2159	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1846		2160
1847	if ($self->{record_replies}) {	2161	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2162	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2163
1849	} else {	2164	} else {
		2165	my $pl = $self->contr;
		2166
		2167	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2168	my $diag = $pl->{npc_dialog};
		2169	$diag->{pl}->ext_reply (
		2170	$diag->{id},
		2171	msgtype => "reply",
		2172	msg => $diag->{pl}->expand_cfpod ($msg),
		2173	add_topics => []
		2174	);
		2175
		2176	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2177	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2178	$self->message ($msg, $flags);
		2179	}
1852	}	2180	}
1853	}	2181	}
1854		2182
1855	=item $player_object->may ("access")	2183	=item $player_object->may ("access")
1856		2184
…		…
1904	$self->deactivate_recursive;	2232	$self->deactivate_recursive;
1905		2233
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2234	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2235
1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2236	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2237	if $self->map && $self->map->{path} ne "{link}";
1910		2238
1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2239	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1912	}	2240	}
1913		2241
1914	sub cf::object::player::leave_link {	2242	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2243	my ($self, $map, $x, $y) = @_;
		2244
		2245	return unless $self->contr->active;
1916		2246
1917	my $link_pos = delete $self->{_link_pos};	2247	my $link_pos = delete $self->{_link_pos};
1918		2248
1919	unless ($map) {	2249	unless ($map) {
1920	# restore original map position	2250	# restore original map position
…		…
1943		2273
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2274	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2275	$self->enter_map ($map, $x, $y);
1946	}	2276	}
1947		2277
1948	cf::player->attach (	2278	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1949	on_logout => sub {
1950	my ($pl) = @_;
1951		2279
1952	# abort map switching before logout	2280	Moves the player to the given map-path and coordinates by first freezing
1953	if ($pl->ob->{_link_pos}) {	2281	her, loading and preparing them map, calling the provided $check callback
1954	cf::sync_job {	2282	that has to return the map if sucecssful, and then unfreezes the player on
1955	$pl->ob->leave_link	2283	the new (success) or old (failed) map position. In either case, $done will
1956	};	2284	be called at the end of this process.
1957	}
1958	},
1959	on_login => sub {
1960	my ($pl) = @_;
1961		2285
1962	# try to abort aborted map switching on player login :)
1963	# should happen only on crashes
1964	if ($pl->ob->{_link_pos}) {
1965	$pl->ob->enter_link;
1966	(async {
1967	$pl->ob->reply (undef,
1968	"There was an internal problem at your last logout, "
1969	. "the server will try to bring you to your intended destination in a second.",
1970	cf::NDI_RED);
1971	# we need this sleep as the login has a concurrent enter_exit running
1972	# and this sleep increases chances of the player not ending up in scorn
1973	Coro::Timer::sleep 1;
1974	$pl->ob->leave_link;
1975	})->prio (2);
1976	}
1977	},
1978	);
1979
1980	=item $player_object->goto ($path, $x, $y)
1981
1982	=cut	2286	=cut
		2287
		2288	our $GOTOGEN;
1983		2289
1984	sub cf::object::player::goto {	2290	sub cf::object::player::goto {
1985	my ($self, $path, $x, $y) = @_;	2291	my ($self, $path, $x, $y, $check, $done) = @_;
		2292
		2293	# do generation counting so two concurrent goto's will be executed in-order
		2294	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1986		2295
1987	$self->enter_link;	2296	$self->enter_link;
1988		2297
1989	(async {	2298	(async {
1990	my $map = eval {	2299	my $map = eval {
1991	my $map = cf::map::find $path;	2300	my $map = cf::map::find $path;
		2301
		2302	if ($map) {
1992	$map = $map->customise_for ($self) if $map;	2303	$map = $map->customise_for ($self);
		2304	$map = $check->($map) if $check && $map;
		2305	} else {
		2306	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2307	}
		2308
1993	$map	2309	$map
		2310	};
		2311
		2312	if ($@) {
		2313	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2314	LOG llevError | logBacktrace, Carp::longmess $@;
1994	} or	2315	}
1995	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1996		2316
		2317	if ($gen == $self->{_goto_generation}) {
		2318	delete $self->{_goto_generation};
1997	$self->leave_link ($map, $x, $y);	2319	$self->leave_link ($map, $x, $y);
		2320	}
		2321
		2322	$done->() if $done;
1998	})->prio (1);	2323	})->prio (1);
1999	}	2324	}
2000		2325
2001	=item $player_object->enter_exit ($exit_object)	2326	=item $player_object->enter_exit ($exit_object)
2002		2327
…		…
2071	my $hp = $exit->stats->hp;	2396	my $hp = $exit->stats->hp;
2072	my $sp = $exit->stats->sp;	2397	my $sp = $exit->stats->sp;
2073		2398
2074	$self->enter_link;	2399	$self->enter_link;
2075		2400
		2401	# if exit is damned, update players death & WoR home-position
		2402	$self->contr->savebed ($slaying, $hp, $sp)
		2403	if $exit->flag (FLAG_DAMNED);
		2404
2076	(async {	2405	(async {
2077	$self->deactivate_recursive; # just to be sure	2406	$self->deactivate_recursive; # just to be sure
2078	unless (eval {	2407	unless (eval {
2079	$self->goto ($slaying, $hp, $sp);	2408	$self->goto ($slaying, $hp, $sp);
2080		2409
…		…
2107		2436
2108	utf8::encode $text;	2437	utf8::encode $text;
2109	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2438	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2110	}	2439	}
2111		2440
		2441	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2442
		2443	Send a drawinfo or msg packet to the client, formatting the msg for the
		2444	client if neccessary. C<$type> should be a string identifying the type of
		2445	the message, with C<log> being the default. If C<$color> is negative, suppress
		2446	the message unless the client supports the msg packet.
		2447
		2448	=cut
		2449
		2450	sub cf::client::send_msg {
		2451	my ($self, $channel, $msg, $color, @extra) = @_;
		2452
		2453	$msg = $self->pl->expand_cfpod ($msg);
		2454
		2455	$color &= ~cf::NDI_UNIQUE; # just in case...
		2456
		2457	if (ref $channel) {
		2458	# send meta info to client, if not yet sent
		2459	unless (exists $self->{channel}{$channel->{id}}) {
		2460	$self->{channel}{$channel->{id}} = $channel;
		2461	$self->ext_event (channel_info => %$channel);
		2462	}
		2463
		2464	$channel = $channel->{id};
		2465	}
		2466
		2467	return unless @extra || length $msg;
		2468
		2469	if ($self->can_msg) {
		2470	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2471	} else {
		2472	# replace some tags by gcfclient-compatible ones
		2473	for ($msg) {
		2474	1 while
		2475	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2476	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2477	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2478	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2479	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2480	}
		2481
		2482	if ($color >= 0) {
		2483	if (0 && $msg =~ /\[/) {
		2484	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2485	} else {
		2486	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2487	$self->send_packet ("drawinfo $color $msg")
		2488	}
		2489	}
		2490	}
		2491	}
		2492
2112	=item $client->ext_event ($type, %msg)	2493	=item $client->ext_event ($type, %msg)
2113		2494
2114	Sends an exti event to the client.	2495	Sends an ext event to the client.
2115		2496
2116	=cut	2497	=cut
2117		2498
2118	sub cf::client::ext_event($$%) {	2499	sub cf::client::ext_event($$%) {
2119	my ($self, $type, %msg) = @_;	2500	my ($self, $type, %msg) = @_;
2120		2501
		2502	return unless $self->extcmd;
		2503
2121	$msg{msgtype} = "event_$type";	2504	$msg{msgtype} = "event_$type";
2122	$self->send_packet ("ext " . cf::to_json \%msg);	2505	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2123	}	2506	}
2124		2507
2125	=item $success = $client->query ($flags, "text", \&cb)	2508	=item $success = $client->query ($flags, "text", \&cb)
2126		2509
2127	Queues a query to the client, calling the given callback with	2510	Queues a query to the client, calling the given callback with
2128	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2511	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2129	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2512	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2130		2513
2131	Queries can fail, so check the return code. Or don't, as queries will become	2514	Queries can fail, so check the return code. Or don't, as queries will
2132	reliable at some point in the future.	2515	become reliable at some point in the future.
2133		2516
2134	=cut	2517	=cut
2135		2518
2136	sub cf::client::query {	2519	sub cf::client::query {
2137	my ($self, $flags, $text, $cb) = @_;	2520	my ($self, $flags, $text, $cb) = @_;
…		…
2145	utf8::encode $text;	2528	utf8::encode $text;
2146	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2529	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2147		2530
2148	$self->send_packet ($self->{query_queue}[0][0])	2531	$self->send_packet ($self->{query_queue}[0][0])
2149	if @{ $self->{query_queue} } == 1;	2532	if @{ $self->{query_queue} } == 1;
		2533
		2534	1
2150	}	2535	}
2151		2536
2152	cf::client->attach (	2537	cf::client->attach (
		2538	on_connect => sub {
		2539	my ($ns) = @_;
		2540
		2541	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2542	},
2153	on_reply => sub {	2543	on_reply => sub {
2154	my ($ns, $msg) = @_;	2544	my ($ns, $msg) = @_;
2155		2545
2156	# this weird shuffling is so that direct followup queries	2546	# this weird shuffling is so that direct followup queries
2157	# get handled first	2547	# get handled first
…		…
2169	} else {	2559	} else {
2170	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2560	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2171	}	2561	}
2172	}	2562	}
2173	},	2563	},
		2564	on_exticmd => sub {
		2565	my ($ns, $buf) = @_;
		2566
		2567	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2568
		2569	if (ref $msg) {
		2570	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2571	if (my %reply = $cb->($ns, $msg)) {
		2572	$reply{msgid} = $msg->{msgid};
		2573	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2574	}
		2575	}
		2576	} else {
		2577	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2578	}
		2579
		2580	cf::override;
		2581	},
2174	);	2582	);
2175		2583
2176	=item $client->async (\&cb)	2584	=item $client->async (\&cb)
2177		2585
2178	Create a new coroutine, running the specified callback. The coroutine will	2586	Create a new coroutine, running the specified callback. The coroutine will
…		…
2227		2635
2228	=pod	2636	=pod
2229		2637
2230	The following functions and methods are available within a safe environment:	2638	The following functions and methods are available within a safe environment:
2231		2639
2232	cf::object contr pay_amount pay_player map	2640	cf::object
		2641	contr pay_amount pay_player map x y force_find force_add
		2642	insert remove
		2643
2233	cf::object::player player	2644	cf::object::player
2234	cf::player peaceful	2645	player
2235	cf::map trigger	2646
		2647	cf::player
		2648	peaceful
		2649
		2650	cf::map
		2651	trigger
2236		2652
2237	=cut	2653	=cut
2238		2654
2239	for (	2655	for (
2240	["cf::object" => qw(contr pay_amount pay_player map)],	2656	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2657	insert remove)],
2241	["cf::object::player" => qw(player)],	2658	["cf::object::player" => qw(player)],
2242	["cf::player" => qw(peaceful)],	2659	["cf::player" => qw(peaceful)],
2243	["cf::map" => qw(trigger)],	2660	["cf::map" => qw(trigger)],
2244	) {	2661	) {
2245	no strict 'refs';	2662	no strict 'refs';
…		…
2316	=back	2733	=back
2317		2734
2318	=cut	2735	=cut
2319		2736
2320	#############################################################################	2737	#############################################################################
2321
2322	=head2 EXTENSION DATABASE SUPPORT
2323
2324	Crossfire maintains a very simple database for extension use. It can
2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2326	convert to/from binary).
2327
2328	The parameter C<$family> should best start with the name of the extension
2329	using it, it should be unique.
2330
2331	=over 4
2332
2333	=item $value = cf::db_get $family => $key
2334
2335	Returns a single value from the database.
2336
2337	=item cf::db_put $family => $key => $value
2338
2339	Stores the given C<$value> in the family.
2340
2341	=cut
2342
2343	our $DB;
2344
2345	sub db_init {
2346	unless ($DB) {
2347	$DB = BDB::db_create $DB_ENV;
2348
2349	cf::sync_job {
2350	eval {
2351	$DB->set_flags (BDB::CHKSUM);
2352
2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2354	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2355	cf::cleanup "db_open(db): $!" if $!;
2356	};
2357	cf::cleanup "db_open(db): $@" if $@;
2358	};
2359	}
2360	}
2361
2362	sub db_get($$) {
2363	my $key = "$_[0]/$_[1]";
2364
2365	cf::sync_job {
2366	BDB::db_get $DB, undef, $key, my $data;
2367
2368	$! ? ()
2369	: $data
2370	}
2371	}
2372
2373	sub db_put($$$) {
2374	BDB::dbreq_pri 4;
2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2376	}
2377
2378	=item cf::cache $id => [$paths...], $processversion => $process
2379
2380	Generic caching function that returns the value of the resource $id,
2381	caching and regenerating as required.
2382
2383	This function can block.
2384
2385	=cut
2386
2387	sub cache {
2388	my ($id, $src, $processversion, $process) = @_;
2389
2390	my $meta =
2391	join "\x00",
2392	$processversion,
2393	map {
2394	aio_stat $_
2395	and Carp::croak "$_: $!";
2396
2397	($_, (stat _)[7,9])
2398	} @$src;
2399
2400	my $dbmeta = db_get cache => "$id/meta";
2401	if ($dbmeta ne $meta) {
2402	# changed, we may need to process
2403
2404	my @data;
2405	my $md5;
2406
2407	for (0 .. $#$src) {
2408	0 <= aio_load $src->[$_], $data[$_]
2409	or Carp::croak "$src->[$_]: $!";
2410	}
2411
2412	# if processing is expensive, check
2413	# checksum first
2414	if (1) {
2415	$md5 =
2416	join "\x00",
2417	$processversion,
2418	map {
2419	Coro::cede;
2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
2421	} 0.. $#$src;
2422
2423
2424	my $dbmd5 = db_get cache => "$id/md5";
2425	if ($dbmd5 eq $md5) {
2426	db_put cache => "$id/meta", $meta;
2427
2428	return db_get cache => "$id/data";
2429	}
2430	}
2431
2432	my $t1 = Time::HiRes::time;
2433	my $data = $process->(\@data);
2434	my $t2 = Time::HiRes::time;
2435
2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2437
2438	db_put cache => "$id/data", $data;
2439	db_put cache => "$id/md5" , $md5;
2440	db_put cache => "$id/meta", $meta;
2441
2442	return $data;
2443	}
2444
2445	db_get cache => "$id/data"
2446	}
2447
2448	=item fork_call { }, $args
2449
2450	Executes the given code block with the given arguments in a seperate
2451	process, returning the results. Everything must be serialisable with
2452	Coro::Storable. May, of course, block. Note that the executed sub may
2453	never block itself or use any form of Event handling.
2454
2455	=cut
2456
2457	sub fork_call(&@) {
2458	my ($cb, @args) = @_;
2459
2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2461	# or die "socketpair: $!";
2462	pipe my $fh1, my $fh2
2463	or die "pipe: $!";
2464
2465	if (my $pid = fork) {
2466	close $fh2;
2467
2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2469	$res = Coro::Storable::thaw $res;
2470
2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2472
2473	die $$res unless "ARRAY" eq ref $res;
2474
2475	return wantarray ? @$res : $res->[-1];
2476	} else {
2477	reset_signals;
2478	local $SIG{__WARN__};
2479	local $SIG{__DIE__};
2480	eval {
2481	close $fh1;
2482
2483	my @res = eval { $cb->(@args) };
2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2485	};
2486
2487	warn $@ if $@;
2488	_exit 0;
2489	}
2490	}
2491
2492
2493
2494	#############################################################################
2495	# the server's init and main functions	2738	# the server's init and main functions
2496		2739
2497	sub load_facedata($) {	2740	sub load_facedata($) {
2498	my ($path) = @_;	2741	my ($path) = @_;
2499		2742
…		…
2511	{	2754	{
2512	my $faces = $facedata->{faceinfo};	2755	my $faces = $facedata->{faceinfo};
2513		2756
2514	while (my ($face, $info) = each %$faces) {	2757	while (my ($face, $info) = each %$faces) {
2515	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2758	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2516	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2759	cf::face::set_visibility $idx, $info->{visibility};
		2760	cf::face::set_magicmap $idx, $info->{magicmap};
2517	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2761	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2518	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2762	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2519	Coro::cede;	2763
		2764	cf::cede_to_tick;
2520	}	2765	}
2521		2766
2522	while (my ($face, $info) = each %$faces) {	2767	while (my ($face, $info) = each %$faces) {
2523	next unless $info->{smooth};	2768	next unless $info->{smooth};
2524	my $idx = cf::face::find $face	2769	my $idx = cf::face::find $face
2525	or next;	2770	or next;
2526	if (my $smooth = cf::face::find $info->{smooth}) {	2771	if (my $smooth = cf::face::find $info->{smooth}) {
		2772	cf::face::set_smooth $idx, $smooth;
2527	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2773	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2528	} else {	2774	} else {
2529	warn "smooth face '$info->{smooth}' not found for face '$face'";	2775	warn "smooth face '$info->{smooth}' not found for face '$face'";
2530	}	2776	}
2531	Coro::cede;	2777
		2778	cf::cede_to_tick;
2532	}	2779	}
2533	}	2780	}
2534		2781
2535	{	2782	{
2536	my $anims = $facedata->{animinfo};	2783	my $anims = $facedata->{animinfo};
2537		2784
2538	while (my ($anim, $info) = each %$anims) {	2785	while (my ($anim, $info) = each %$anims) {
2539	cf::anim::set $anim, $info->{frames}, $info->{facings};	2786	cf::anim::set $anim, $info->{frames}, $info->{facings};
2540	Coro::cede;	2787	cf::cede_to_tick;
2541	}	2788	}
2542		2789
2543	cf::anim::invalidate_all; # d'oh	2790	cf::anim::invalidate_all; # d'oh
		2791	}
		2792
		2793	{
		2794	# TODO: for gcfclient pleasure, we should give resources
		2795	# that gcfclient doesn't grok a >10000 face index.
		2796	my $res = $facedata->{resource};
		2797	my $enc = JSON::XS->new->utf8->canonical;
		2798
		2799	while (my ($name, $info) = each %$res) {
		2800	my $meta = $enc->encode ({
		2801	name => $name,
		2802	type => $info->{type},
		2803	copyright => $info->{copyright}, #TODO#
		2804	});
		2805
		2806	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2807
		2808	if ($name =~ /\.jpg$/) {
		2809	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2810	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2811	} else {
		2812	my $data = pack "(w/a*)*", $meta, $info->{data};
		2813	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2814
		2815	cf::face::set_type $idx, 1;
		2816	cf::face::set_data $idx, 0, $data, $chk;
		2817	}
		2818
		2819	cf::cede_to_tick;
		2820	}
2544	}	2821	}
2545		2822
2546	1	2823	1
2547	}	2824	}
2548		2825
2549	sub reload_regions {	2826	sub reload_regions {
2550	load_resource_file "$MAPDIR/regions"	2827	load_resource_file "$MAPDIR/regions"
2551	or die "unable to load regions file\n";	2828	or die "unable to load regions file\n";
		2829
		2830	for (cf::region::list) {
		2831	$_->{match} = qr/$_->{match}/
		2832	if exists $_->{match};
		2833	}
2552	}	2834	}
2553		2835
2554	sub reload_facedata {	2836	sub reload_facedata {
2555	load_facedata "$DATADIR/facedata"	2837	load_facedata "$DATADIR/facedata"
2556	or die "unable to load facedata\n";	2838	or die "unable to load facedata\n";
2557	}	2839	}
2558		2840
2559	sub reload_archetypes {	2841	sub reload_archetypes {
2560	load_resource_file "$DATADIR/archetypes"	2842	load_resource_file "$DATADIR/archetypes"
2561	or die "unable to load archetypes\n";	2843	or die "unable to load archetypes\n";
		2844	#d# NEED to laod twice to resolve forward references
		2845	# this really needs to be done in an extra post-pass
		2846	# (which needs to be synchronous, so solve it differently)
		2847	load_resource_file "$DATADIR/archetypes"
		2848	or die "unable to load archetypes\n";
2562	}	2849	}
2563		2850
2564	sub reload_treasures {	2851	sub reload_treasures {
2565	load_resource_file "$DATADIR/treasures"	2852	load_resource_file "$DATADIR/treasures"
2566	or die "unable to load treasurelists\n";	2853	or die "unable to load treasurelists\n";
…		…
2569	sub reload_resources {	2856	sub reload_resources {
2570	warn "reloading resource files...\n";	2857	warn "reloading resource files...\n";
2571		2858
2572	reload_regions;	2859	reload_regions;
2573	reload_facedata;	2860	reload_facedata;
		2861	#reload_archetypes;#d#
2574	reload_archetypes;	2862	reload_archetypes;
2575	reload_treasures;	2863	reload_treasures;
2576		2864
2577	warn "finished reloading resource files\n";	2865	warn "finished reloading resource files\n";
2578	}	2866	}
…		…
2635	},	2923	},
2636	);	2924	);
2637	}	2925	}
2638	}	2926	}
2639		2927
		2928	sub write_runtime {
		2929	my $runtime = "$LOCALDIR/runtime";
		2930
		2931	# first touch the runtime file to show we are still running:
		2932	# the fsync below can take a very very long time.
		2933
		2934	IO::AIO::aio_utime $runtime, undef, undef;
		2935
		2936	my $guard = cf::lock_acquire "write_runtime";
		2937
		2938	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2939	or return;
		2940
		2941	my $value = $cf::RUNTIME + 90 + 10;
		2942	# 10 is the runtime save interval, for a monotonic clock
		2943	# 60 allows for the watchdog to kill the server.
		2944
		2945	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2946	and return;
		2947
		2948	# always fsync - this file is important
		2949	aio_fsync $fh
		2950	and return;
		2951
		2952	# touch it again to show we are up-to-date
		2953	aio_utime $fh, undef, undef;
		2954
		2955	close $fh
		2956	or return;
		2957
		2958	aio_rename "$runtime~", $runtime
		2959	and return;
		2960
		2961	warn "runtime file written.\n";
		2962
		2963	1
		2964	}
		2965
2640	sub emergency_save() {	2966	sub emergency_save() {
2641	my $freeze_guard = cf::freeze_mainloop;	2967	my $freeze_guard = cf::freeze_mainloop;
2642		2968
2643	warn "enter emergency perl save\n";	2969	warn "enter emergency perl save\n";
2644		2970
…		…
2719	%EXT_CORO = ();	3045	%EXT_CORO = ();
2720		3046
2721	warn "removing commands";	3047	warn "removing commands";
2722	%COMMAND = ();	3048	%COMMAND = ();
2723		3049
2724	warn "removing ext commands";	3050	warn "removing ext/exti commands";
2725	%EXTCMD = ();	3051	%EXTCMD = ();
		3052	%EXTICMD = ();
2726		3053
2727	warn "unloading/nuking all extensions";	3054	warn "unloading/nuking all extensions";
2728	for my $pkg (@EXTS) {	3055	for my $pkg (@EXTS) {
2729	warn "... unloading $pkg";	3056	warn "... unloading $pkg";
2730		3057
…		…
2848	my $signal = new Coro::Signal;	3175	my $signal = new Coro::Signal;
2849	push @WAIT_FOR_TICK_BEGIN, $signal;	3176	push @WAIT_FOR_TICK_BEGIN, $signal;
2850	$signal->wait;	3177	$signal->wait;
2851	}	3178	}
2852		3179
		3180	my $min = 1e6;#d#
		3181	my $avg = 10;
2853	$TICK_WATCHER = Event->timer (	3182	$TICK_WATCHER = Event->timer (
2854	reentrant => 0,	3183	reentrant => 0,
2855	parked => 1,	3184	parked => 1,
2856	prio => 0,	3185	prio => 0,
2857	at => $NEXT_TICK || $TICK,	3186	at => $NEXT_TICK || $TICK,
…		…
2864	}	3193	}
2865		3194
2866	$NOW = $tick_start = Event::time;	3195	$NOW = $tick_start = Event::time;
2867		3196
2868	cf::server_tick; # one server iteration	3197	cf::server_tick; # one server iteration
		3198
		3199	0 && sync_job {#d#
		3200	for(1..10) {
		3201	my $t = Event::time;
		3202	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3203	or die;
		3204
		3205	$map->width (50);
		3206	$map->height (50);
		3207	$map->alloc;
		3208	$map->_load_objects ("/tmp/x.map", 1);
		3209	my $t = Event::time - $t;
		3210
		3211	#next unless $t < 0.0013;#d#
		3212	if ($t < $min) {
		3213	$min = $t;
		3214	}
		3215	$avg = $avg * 0.99 + $t * 0.01;
		3216	}
		3217	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3218	exit 0;
		3219	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3220	};
2869		3221
2870	$RUNTIME += $TICK;	3222	$RUNTIME += $TICK;
2871	$NEXT_TICK += $TICK;	3223	$NEXT_TICK += $TICK;
2872		3224
2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3225	if ($NOW >= $NEXT_RUNTIME_WRITE) {

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