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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.266 by root, Fri May 18 01:01:02 2007 UTC vs.
Revision 1.312 by root, Sat Jul 21 18:01:26 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
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
628		784
629	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		789
634	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	791	my $pkg = shift @arg;
636		792
637	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
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
…		…
678	if (ref $_[0]) {	834	if (ref $_[0]) {
679	_object_attach @_;	835	_object_attach @_;
680	} else {	836	} else {
681	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
682	}	838	}
		839	_recalc_want;
683	};	840	};
684		841
685	# all those should be optimised	842	# all those should be optimised
686	sub cf::attachable::detach {	843	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
691	reattach ($obj);	848	reattach ($obj);
692	} else {	849	} else {
693	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
694	}	851	}
		852	_recalc_want;
695	};	853	};
696		854
697	sub cf::attachable::attached {	855	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
699		857
…		…
714	";	872	";
715	die if $@;	873	die if $@;
716	}	874	}
717		875
718	our $override;	876	our $override;
719	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?
720		878
721	sub override {	879	sub override {
722	$override = 1;	880	$override = 1;
723	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
724	}	882	}
725		883
726	sub do_invoke {	884	sub do_invoke {
727	my $event = shift;	885	my $event = shift;
728	my $callbacks = shift;	886	my $callbacks = shift;
729		887
730	@invoke_results = ();	888	@INVOKE_RESULTS = ();
731		889
732	local $override;	890	local $override;
733		891
734	for (@$callbacks) {	892	for (@$callbacks) {
735	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
752		910
753	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
754		912
755	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
756	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
757	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		916
759	=back	917	=back
760		918
761	=cut	919	=cut
762		920
763	#############################################################################	921	#############################################################################
764	# 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	}
765		934
766	sub reattach {	935	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	936	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	937	my ($obj) = @_;
769		938
…		…
872	or return;	1041	or return;
873	$av = eval { (Storable::thaw $av)->{objs} };	1042	$av = eval { (Storable::thaw $av)->{objs} };
874	}	1043	}
875		1044
876	warn sprintf "loading %s (%d)\n",	1045	warn sprintf "loading %s (%d)\n",
877	$filename, length $data, scalar @{$av || []};#d#	1046	$filename, length $data, scalar @{$av || []};
878	return ($data, $av);	1047	return ($data, $av);
879	}	1048	}
		1049
		1050	=head2 COMMAND CALLBACKS
		1051
		1052	=over 4
		1053
		1054	=cut
880		1055
881	#############################################################################	1056	#############################################################################
882	# command handling &c	1057	# command handling &c
883		1058
884	=item cf::register_command $name => \&callback($ob,$args);	1059	=item cf::register_command $name => \&callback($ob,$args);
…		…
897	push @{ $COMMAND{$name} }, [$caller, $cb];	1072	push @{ $COMMAND{$name} }, [$caller, $cb];
898	}	1073	}
899		1074
900	=item cf::register_extcmd $name => \&callback($pl,$packet);	1075	=item cf::register_extcmd $name => \&callback($pl,$packet);
901		1076
902	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.
903		1082
904	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
905	called.	1084	called.
906		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
907	=cut	1097	=cut
908		1098
909	sub register_extcmd {	1099	sub register_extcmd {
910	my ($name, $cb) = @_;	1100	my ($name, $cb) = @_;
911		1101
912	$EXTCMD{$name} = $cb;	1102	$EXTCMD{$name} = $cb;
		1103	}
		1104
		1105	sub register_exticmd {
		1106	my ($name, $cb) = @_;
		1107
		1108	$EXTICMD{$name} = $cb;
913	}	1109	}
914		1110
915	cf::player->attach (	1111	cf::player->attach (
916	on_command => sub {	1112	on_command => sub {
917	my ($pl, $name, $params) = @_;	1113	my ($pl, $name, $params) = @_;
…		…
926	cf::override;	1122	cf::override;
927	},	1123	},
928	on_extcmd => sub {	1124	on_extcmd => sub {
929	my ($pl, $buf) = @_;	1125	my ($pl, $buf) = @_;
930		1126
931	my $msg = eval { from_json $buf };	1127	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
932		1128
933	if (ref $msg) {	1129	if (ref $msg) {
934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1130	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
935	if (my %reply = $cb->($pl, $msg)) {	1131	if (my %reply = $cb->($pl, $msg)) {
936	$pl->ext_reply ($msg->{msgid}, %reply);	1132	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
942		1138
943	cf::override;	1139	cf::override;
944	},	1140	},
945	);	1141	);
946		1142
947	sub load_extension {
948	my ($path) = @_;
949
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
951	my $base = $1;
952	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "... loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	unless (eval $source) {
968	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	warn $@;
972	warn "mandatory extension failed to load, exiting.\n";
973	exit 1;
974	}
975	die $@;
976	}
977
978	push @EXTS, $pkg;
979	}
980
981	sub load_extensions {	1143	sub load_extensions {
		1144	cf::sync_job {
		1145	my %todo;
		1146
982	for my $ext (<$LIBDIR/*.ext>) {	1147	for my $path (<$LIBDIR/*.ext>) {
983	next unless -r $ext;	1148	next unless -r $path;
984	eval {	1149
985	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;
986	1	1207	}
987	} or warn "$ext not loaded: $@";	1208
		1209	skip:
		1210	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1211	unless $progress;
		1212	}
988	}	1213	};
989	}	1214	}
990		1215
991	#############################################################################	1216	#############################################################################
		1217
		1218	=back
992		1219
993	=head2 CORE EXTENSIONS	1220	=head2 CORE EXTENSIONS
994		1221
995	Functions and methods that extend core crossfire objects.	1222	Functions and methods that extend core crossfire objects.
996		1223
…		…
1184	}	1411	}
1185		1412
1186	\@paths	1413	\@paths
1187	}	1414	}
1188		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
1189	=item $player->ext_reply ($msgid, %msg)	1466	=item $player->ext_reply ($msgid, %msg)
1190		1467
1191	Sends an ext reply to the player.	1468	Sends an ext reply to the player.
1192		1469
1193	=cut	1470	=cut
1194		1471
1195	sub ext_reply($$%) {	1472	sub ext_reply($$%) {
1196	my ($self, $id, %msg) = @_;	1473	my ($self, $id, %msg) = @_;
1197		1474
1198	$msg{msgid} = $id;	1475	$msg{msgid} = $id;
1199		1476	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1200	$self->send ("ext " . cf::to_json \%msg);
1201	}	1477	}
1202		1478
1203	=item $player->ext_event ($type, %msg)	1479	=item $player->ext_event ($type, %msg)
1204		1480
1205	Sends an ext event to the client.	1481	Sends an ext event to the client.
…		…
1220		1496
1221	package cf::region;	1497	package cf::region;
1222		1498
1223	=item cf::region::find_by_path $path	1499	=item cf::region::find_by_path $path
1224		1500
1225	Tries to decuce the probable region for a map knowing only its path.	1501	Tries to decuce the likely region for a map knowing only its path.
1226		1502
1227	=cut	1503	=cut
1228		1504
1229	sub find_by_path($) {	1505	sub find_by_path($) {
1230	my ($path) = @_;	1506	my ($path) = @_;
1231		1507
1232	my ($match, $specificity);	1508	my ($match, $specificity);
1233		1509
1234	for my $region (list) {	1510	for my $region (list) {
1235	if ($region->match && $path =~ $region->match) {	1511	if ($region->{match} && $path =~ $region->{match}) {
1236	($match, $specificity) = ($region, $region->specificity)	1512	($match, $specificity) = ($region, $region->specificity)
1237	if $region->specificity > $specificity;	1513	if $region->specificity > $specificity;
1238	}	1514	}
1239	}	1515	}
1240		1516
…		…
1304	my ($self, $merge) = @_;	1580	my ($self, $merge) = @_;
1305		1581
1306	# we have to keep some variables in memory intact	1582	# we have to keep some variables in memory intact
1307	local $self->{path};	1583	local $self->{path};
1308	local $self->{load_path};	1584	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		1585
1312	$self->SUPER::thawer_merge ($merge);	1586	$self->SUPER::thawer_merge ($merge);
1313	}	1587	}
1314		1588
1315	sub normalise {	1589	sub normalise {
…		…
1362	$self->init; # pass $1 etc.	1636	$self->init; # pass $1 etc.
1363	return $self;	1637	return $self;
1364	}	1638	}
1365	}	1639	}
1366		1640
1367	Carp::carp "unable to resolve path '$path' (base '$base').";	1641	Carp::cluck "unable to resolve path '$path' (base '$base').";
1368	()	1642	()
1369	}	1643	}
1370		1644
1371	sub init {	1645	sub init {
1372	my ($self) = @_;	1646	my ($self) = @_;
…		…
1413	sub change_all_map_light {	1687	sub change_all_map_light {
1414	my ($change) = @_;	1688	my ($change) = @_;
1415		1689
1416	$_->change_map_light ($change)	1690	$_->change_map_light ($change)
1417	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	$self->do_decay_objects;
1418	}	1700	}
1419		1701
1420	sub unlink_save {	1702	sub unlink_save {
1421	my ($self) = @_;	1703	my ($self) = @_;
1422		1704
…		…
1480	$self->load_header_orig	1762	$self->load_header_orig
1481	or return;	1763	or return;
1482	$self->prepare_orig;	1764	$self->prepare_orig;
1483	}	1765	}
1484		1766
		1767	$self->{deny_reset} = 1
		1768	if $self->no_reset;
		1769
1485	$self->default_region (cf::region::find_by_path $self->{path})	1770	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	1771	unless $self->default_region;
1487		1772
1488	1	1773	1
1489	}	1774	}
…		…
1504	$map->{last_save} = $cf::RUNTIME;	1789	$map->{last_save} = $cf::RUNTIME;
1505		1790
1506	$map->load_header	1791	$map->load_header
1507	or return;	1792	or return;
1508		1793
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1794	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	1795	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	1796	#$cf::WAIT_FOR_TICK->wait;
1512	$map->reset;	1797	$map->reset;
1513	undef $guard;	1798	undef $guard;
1514	return find $path;	1799	return find $path;
…		…
1581	my ($self, $ob) = @_;	1866	my ($self, $ob) = @_;
1582		1867
1583	return find "~" . $ob->name . "/" . $self->{path}	1868	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	1869	if $self->per_player;
1585		1870
		1871	# return find "?party/" . $ob->name . "/" . $self->{path}
		1872	# if $self->per_party;
		1873
1586	$self	1874	$self
1587	}	1875	}
1588		1876
1589	# 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
1590	sub load_diag {	1878	sub load_diag {
…		…
1636		1924
1637	undef $MAP_PREFETCH{$path};	1925	undef $MAP_PREFETCH{$path};
1638	$MAP_PREFETCHER ||= cf::async {	1926	$MAP_PREFETCHER ||= cf::async {
1639	while (%MAP_PREFETCH) {	1927	while (%MAP_PREFETCH) {
1640	for my $path (keys %MAP_PREFETCH) {	1928	for my $path (keys %MAP_PREFETCH) {
1641	my $map = find $path	1929	if (my $map = find $path) {
1642	or next;
1643	$map->load;	1930	$map->load;
		1931	}
1644		1932
1645	delete $MAP_PREFETCH{$path};	1933	delete $MAP_PREFETCH{$path};
1646	}	1934	}
1647	}	1935	}
1648	undef $MAP_PREFETCHER;	1936	undef $MAP_PREFETCHER;
…		…
1700		1988
1701	sub reset_at {	1989	sub reset_at {
1702	my ($self) = @_;	1990	my ($self) = @_;
1703		1991
1704	# TODO: safety, remove and allow resettable per-player maps	1992	# TODO: safety, remove and allow resettable per-player maps
1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1706	return 1e99 if $self->{deny_reset};	1993	return 1e99 if $self->{deny_reset};
1707		1994
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1995	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1996	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1710		1997
…		…
1721	my ($self) = @_;	2008	my ($self) = @_;
1722		2009
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	2010	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		2011
1725	return if $self->players;	2012	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		2013
1728	warn "resetting map ", $self->path;#d#	2014	warn "resetting map ", $self->path;
1729		2015
1730	$self->in_memory (cf::MAP_SWAPPED);	2016	$self->in_memory (cf::MAP_SWAPPED);
1731		2017
1732	# need to save uniques path	2018	# need to save uniques path
1733	unless ($self->{deny_save}) {	2019	unless ($self->{deny_save}) {
…		…
1765	$cf::MAP{$self->path} = $self;	2051	$cf::MAP{$self->path} = $self;
1766		2052
1767	$self->reset; # polite request, might not happen	2053	$self->reset; # polite request, might not happen
1768	}	2054	}
1769		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
1770	=item cf::map::unique_maps	2092	=item cf::map::unique_maps
1771		2093
1772	Returns an arrayref of paths of all shared maps that have	2094	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	2095	instantiated unique items. May block.
1774		2096
1775	=cut	2097	=cut
1776		2098
1777	sub unique_maps() {	2099	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	2100	[
1779	or return;	2101	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	2102	utf8::decode $_;
1785	next if /\.pst$/;	2103	/\.map$/
1786	next unless /^$PATH_SEP/o;	2104	? normalise $_
1787		2105	: ()
1788	push @paths, cf::map::normalise $_;	2106	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	2107	]
1790
1791	\@paths
1792	}	2108	}
1793		2109
1794	package cf;	2110	package cf;
1795		2111
1796	=back	2112	=back
…		…
1842		2158
1843	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2159	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1844		2160
1845	if ($self->{record_replies}) {	2161	if ($self->{record_replies}) {
1846	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2162	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2163
1847	} 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 {
1848	$msg = $npc->name . " says: $msg" if $npc;	2177	$msg = $npc->name . " says: $msg" if $npc;
1849	$self->message ($msg, $flags);	2178	$self->message ($msg, $flags);
		2179	}
1850	}	2180	}
1851	}	2181	}
1852		2182
1853	=item $player_object->may ("access")	2183	=item $player_object->may ("access")
1854		2184
…		…
1902	$self->deactivate_recursive;	2232	$self->deactivate_recursive;
1903		2233
1904	return if UNIVERSAL::isa $self->map, "ext::map_link";	2234	return if UNIVERSAL::isa $self->map, "ext::map_link";
1905		2235
1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2236	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1907	if $self->map;	2237	if $self->map && $self->map->{path} ne "{link}";
1908		2238
1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2239	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1910	}	2240	}
1911		2241
1912	sub cf::object::player::leave_link {	2242	sub cf::object::player::leave_link {
1913	my ($self, $map, $x, $y) = @_;	2243	my ($self, $map, $x, $y) = @_;
		2244
		2245	return unless $self->contr->active;
1914		2246
1915	my $link_pos = delete $self->{_link_pos};	2247	my $link_pos = delete $self->{_link_pos};
1916		2248
1917	unless ($map) {	2249	unless ($map) {
1918	# restore original map position	2250	# restore original map position
…		…
1941		2273
1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2274	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1943	$self->enter_map ($map, $x, $y);	2275	$self->enter_map ($map, $x, $y);
1944	}	2276	}
1945		2277
1946	cf::player->attach (	2278	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1947	on_logout => sub {
1948	my ($pl) = @_;
1949		2279
1950	# abort map switching before logout	2280	Moves the player to the given map-path and coordinates by first freezing
1951	if ($pl->ob->{_link_pos}) {	2281	her, loading and preparing them map, calling the provided $check callback
1952	cf::sync_job {	2282	that has to return the map if sucecssful, and then unfreezes the player on
1953	$pl->ob->leave_link	2283	the new (success) or old (failed) map position. In either case, $done will
1954	};	2284	be called at the end of this process.
1955	}
1956	},
1957	on_login => sub {
1958	my ($pl) = @_;
1959		2285
1960	# try to abort aborted map switching on player login :)
1961	# should happen only on crashes
1962	if ($pl->ob->{_link_pos}) {
1963	$pl->ob->enter_link;
1964	(async {
1965	$pl->ob->reply (undef,
1966	"There was an internal problem at your last logout, "
1967	. "the server will try to bring you to your intended destination in a second.",
1968	cf::NDI_RED);
1969	# we need this sleep as the login has a concurrent enter_exit running
1970	# and this sleep increases chances of the player not ending up in scorn
1971	Coro::Timer::sleep 1;
1972	$pl->ob->leave_link;
1973	})->prio (2);
1974	}
1975	},
1976	);
1977
1978	=item $player_object->goto ($path, $x, $y)
1979
1980	=cut	2286	=cut
		2287
		2288	our $GOTOGEN;
1981		2289
1982	sub cf::object::player::goto {	2290	sub cf::object::player::goto {
1983	my ($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;
1984		2295
1985	$self->enter_link;	2296	$self->enter_link;
1986		2297
1987	(async {	2298	(async {
1988	my $map = eval {	2299	my $map = eval {
1989	my $map = cf::map::find $path;	2300	my $map = cf::map::find $path;
		2301
		2302	if ($map) {
1990	$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
1991	$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 $@;
1992	} or	2315	}
1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1994		2316
		2317	if ($gen == $self->{_goto_generation}) {
		2318	delete $self->{_goto_generation};
1995	$self->leave_link ($map, $x, $y);	2319	$self->leave_link ($map, $x, $y);
		2320	}
		2321
		2322	$done->() if $done;
1996	})->prio (1);	2323	})->prio (1);
1997	}	2324	}
1998		2325
1999	=item $player_object->enter_exit ($exit_object)	2326	=item $player_object->enter_exit ($exit_object)
2000		2327
…		…
2069	my $hp = $exit->stats->hp;	2396	my $hp = $exit->stats->hp;
2070	my $sp = $exit->stats->sp;	2397	my $sp = $exit->stats->sp;
2071		2398
2072	$self->enter_link;	2399	$self->enter_link;
2073		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
2074	(async {	2405	(async {
2075	$self->deactivate_recursive; # just to be sure	2406	$self->deactivate_recursive; # just to be sure
2076	unless (eval {	2407	unless (eval {
2077	$self->goto ($slaying, $hp, $sp);	2408	$self->goto ($slaying, $hp, $sp);
2078		2409
…		…
2105		2436
2106	utf8::encode $text;	2437	utf8::encode $text;
2107	$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);
2108	}	2439	}
2109		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	return unless @extra || length $msg;
		2456
		2457	$color &= ~cf::NDI_UNIQUE; # just in case...
		2458
		2459	if (ref $channel) {
		2460	# send meta info to client, if not yet sent
		2461	unless (exists $self->{channel}{$channel->{id}}) {
		2462	$self->{channel}{$channel->{id}} = $channel;
		2463	$self->ext_event (channel_info => %$channel);
		2464	}
		2465
		2466	$channel = $channel->{id};
		2467	}
		2468
		2469	if ($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
2110	=item $client->ext_event ($type, %msg)	2493	=item $client->ext_event ($type, %msg)
2111		2494
2112	Sends an exti event to the client.	2495	Sends an ext event to the client.
2113		2496
2114	=cut	2497	=cut
2115		2498
2116	sub cf::client::ext_event($$%) {	2499	sub cf::client::ext_event($$%) {
2117	my ($self, $type, %msg) = @_;	2500	my ($self, $type, %msg) = @_;
2118		2501
		2502	return unless $self->extcmd;
		2503
2119	$msg{msgtype} = "event_$type";	2504	$msg{msgtype} = "event_$type";
2120	$self->send_packet ("ext " . cf::to_json \%msg);	2505	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2121	}	2506	}
2122		2507
2123	=item $success = $client->query ($flags, "text", \&cb)	2508	=item $success = $client->query ($flags, "text", \&cb)
2124		2509
2125	Queues a query to the client, calling the given callback with	2510	Queues a query to the client, calling the given callback with
2126	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>,
2127	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>.
2128		2513
2129	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
2130	reliable at some point in the future.	2515	become reliable at some point in the future.
2131		2516
2132	=cut	2517	=cut
2133		2518
2134	sub cf::client::query {	2519	sub cf::client::query {
2135	my ($self, $flags, $text, $cb) = @_;	2520	my ($self, $flags, $text, $cb) = @_;
…		…
2143	utf8::encode $text;	2528	utf8::encode $text;
2144	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2529	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2145		2530
2146	$self->send_packet ($self->{query_queue}[0][0])	2531	$self->send_packet ($self->{query_queue}[0][0])
2147	if @{ $self->{query_queue} } == 1;	2532	if @{ $self->{query_queue} } == 1;
		2533
		2534	1
2148	}	2535	}
2149		2536
2150	cf::client->attach (	2537	cf::client->attach (
		2538	on_connect => sub {
		2539	my ($ns) = @_;
		2540
		2541	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2542	},
2151	on_reply => sub {	2543	on_reply => sub {
2152	my ($ns, $msg) = @_;	2544	my ($ns, $msg) = @_;
2153		2545
2154	# this weird shuffling is so that direct followup queries	2546	# this weird shuffling is so that direct followup queries
2155	# get handled first	2547	# get handled first
…		…
2167	} else {	2559	} else {
2168	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2560	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2169	}	2561	}
2170	}	2562	}
2171	},	2563	},
		2564	on_exticmd => sub {
		2565	my ($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	},
2172	);	2582	);
2173		2583
2174	=item $client->async (\&cb)	2584	=item $client->async (\&cb)
2175		2585
2176	Create a new coroutine, running the specified callback. The coroutine will	2586	Create a new coroutine, running the specified callback. The coroutine will
…		…
2225		2635
2226	=pod	2636	=pod
2227		2637
2228	The following functions and methods are available within a safe environment:	2638	The following functions and methods are available within a safe environment:
2229		2639
2230	cf::object contr pay_amount pay_player map	2640	cf::object
		2641	contr pay_amount pay_player map x y force_find force_add
		2642	insert remove
		2643
2231	cf::object::player player	2644	cf::object::player
2232	cf::player peaceful	2645	player
2233	cf::map trigger	2646
		2647	cf::player
		2648	peaceful
		2649
		2650	cf::map
		2651	trigger
2234		2652
2235	=cut	2653	=cut
2236		2654
2237	for (	2655	for (
2238	["cf::object" => qw(contr pay_amount pay_player map)],	2656	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2657	insert remove)],
2239	["cf::object::player" => qw(player)],	2658	["cf::object::player" => qw(player)],
2240	["cf::player" => qw(peaceful)],	2659	["cf::player" => qw(peaceful)],
2241	["cf::map" => qw(trigger)],	2660	["cf::map" => qw(trigger)],
2242	) {	2661	) {
2243	no strict 'refs';	2662	no strict 'refs';
…		…
2314	=back	2733	=back
2315		2734
2316	=cut	2735	=cut
2317		2736
2318	#############################################################################	2737	#############################################################################
2319
2320	=head2 EXTENSION DATABASE SUPPORT
2321
2322	Crossfire maintains a very simple database for extension use. It can
2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2324	convert to/from binary).
2325
2326	The parameter C<$family> should best start with the name of the extension
2327	using it, it should be unique.
2328
2329	=over 4
2330
2331	=item $value = cf::db_get $family => $key
2332
2333	Returns a single value from the database.
2334
2335	=item cf::db_put $family => $key => $value
2336
2337	Stores the given C<$value> in the family.
2338
2339	=cut
2340
2341	our $DB;
2342
2343	sub db_init {
2344	unless ($DB) {
2345	$DB = BDB::db_create $DB_ENV;
2346
2347	cf::sync_job {
2348	eval {
2349	$DB->set_flags (BDB::CHKSUM);
2350
2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2353	cf::cleanup "db_open(db): $!" if $!;
2354	};
2355	cf::cleanup "db_open(db): $@" if $@;
2356	};
2357	}
2358	}
2359
2360	sub db_get($$) {
2361	my $key = "$_[0]/$_[1]";
2362
2363	cf::sync_job {
2364	BDB::db_get $DB, undef, $key, my $data;
2365
2366	$! ? ()
2367	: $data
2368	}
2369	}
2370
2371	sub db_put($$$) {
2372	BDB::dbreq_pri 4;
2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2374	}
2375
2376	=item cf::cache $id => [$paths...], $processversion => $process
2377
2378	Generic caching function that returns the value of the resource $id,
2379	caching and regenerating as required.
2380
2381	This function can block.
2382
2383	=cut
2384
2385	sub cache {
2386	my ($id, $src, $processversion, $process) = @_;
2387
2388	my $meta =
2389	join "\x00",
2390	$processversion,
2391	map {
2392	aio_stat $_
2393	and Carp::croak "$_: $!";
2394
2395	($_, (stat _)[7,9])
2396	} @$src;
2397
2398	my $dbmeta = db_get cache => "$id/meta";
2399	if ($dbmeta ne $meta) {
2400	# changed, we may need to process
2401
2402	my @data;
2403	my $md5;
2404
2405	for (0 .. $#$src) {
2406	0 <= aio_load $src->[$_], $data[$_]
2407	or Carp::croak "$src->[$_]: $!";
2408	}
2409
2410	# if processing is expensive, check
2411	# checksum first
2412	if (1) {
2413	$md5 =
2414	join "\x00",
2415	$processversion,
2416	map {
2417	Coro::cede;
2418	($src->[$_], Digest::MD5::md5_hex $data[$_])
2419	} 0.. $#$src;
2420
2421
2422	my $dbmd5 = db_get cache => "$id/md5";
2423	if ($dbmd5 eq $md5) {
2424	db_put cache => "$id/meta", $meta;
2425
2426	return db_get cache => "$id/data";
2427	}
2428	}
2429
2430	my $t1 = Time::HiRes::time;
2431	my $data = $process->(\@data);
2432	my $t2 = Time::HiRes::time;
2433
2434	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2435
2436	db_put cache => "$id/data", $data;
2437	db_put cache => "$id/md5" , $md5;
2438	db_put cache => "$id/meta", $meta;
2439
2440	return $data;
2441	}
2442
2443	db_get cache => "$id/data"
2444	}
2445
2446	=item fork_call { }, $args
2447
2448	Executes the given code block with the given arguments in a seperate
2449	process, returning the results. Everything must be serialisable with
2450	Coro::Storable. May, of course, block. Note that the executed sub may
2451	never block itself or use any form of Event handling.
2452
2453	=cut
2454
2455	sub fork_call(&@) {
2456	my ($cb, @args) = @_;
2457
2458	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2459	# or die "socketpair: $!";
2460	pipe my $fh1, my $fh2
2461	or die "pipe: $!";
2462
2463	if (my $pid = fork) {
2464	close $fh2;
2465
2466	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2467	$res = Coro::Storable::thaw $res;
2468
2469	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2470
2471	die $$res unless "ARRAY" eq ref $res;
2472
2473	return wantarray ? @$res : $res->[-1];
2474	} else {
2475	reset_signals;
2476	local $SIG{__WARN__};
2477	local $SIG{__DIE__};
2478	eval {
2479	close $fh1;
2480
2481	my @res = eval { $cb->(@args) };
2482	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2483	};
2484
2485	warn $@ if $@;
2486	_exit 0;
2487	}
2488	}
2489
2490
2491
2492	#############################################################################
2493	# the server's init and main functions	2738	# the server's init and main functions
2494		2739
2495	sub load_facedata($) {	2740	sub load_facedata($) {
2496	my ($path) = @_;	2741	my ($path) = @_;
2497		2742
…		…
2509	{	2754	{
2510	my $faces = $facedata->{faceinfo};	2755	my $faces = $facedata->{faceinfo};
2511		2756
2512	while (my ($face, $info) = each %$faces) {	2757	while (my ($face, $info) = each %$faces) {
2513	my $idx = (cf::face::find $face) || cf::face::alloc $face;	2758	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2514	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2759	cf::face::set_visibility $idx, $info->{visibility};
		2760	cf::face::set_magicmap $idx, $info->{magicmap};
2515	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2761	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2516	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2762	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2517	Coro::cede;	2763
		2764	cf::cede_to_tick;
2518	}	2765	}
2519		2766
2520	while (my ($face, $info) = each %$faces) {	2767	while (my ($face, $info) = each %$faces) {
2521	next unless $info->{smooth};	2768	next unless $info->{smooth};
2522	my $idx = cf::face::find $face	2769	my $idx = cf::face::find $face
2523	or next;	2770	or next;
2524	if (my $smooth = cf::face::find $info->{smooth}) {	2771	if (my $smooth = cf::face::find $info->{smooth}) {
		2772	cf::face::set_smooth $idx, $smooth;
2525	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2773	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2526	} else {	2774	} else {
2527	warn "smooth face '$info->{smooth}' not found for face '$face'";	2775	warn "smooth face '$info->{smooth}' not found for face '$face'";
2528	}	2776	}
2529	Coro::cede;	2777
		2778	cf::cede_to_tick;
2530	}	2779	}
2531	}	2780	}
2532		2781
2533	{	2782	{
2534	my $anims = $facedata->{animinfo};	2783	my $anims = $facedata->{animinfo};
2535		2784
2536	while (my ($anim, $info) = each %$anims) {	2785	while (my ($anim, $info) = each %$anims) {
2537	cf::anim::set $anim, $info->{frames}, $info->{facings};	2786	cf::anim::set $anim, $info->{frames}, $info->{facings};
2538	Coro::cede;	2787	cf::cede_to_tick;
2539	}	2788	}
2540		2789
2541	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, $chk;
		2817	}
		2818
		2819	cf::cede_to_tick;
		2820	}
2542	}	2821	}
2543		2822
2544	1	2823	1
2545	}	2824	}
2546		2825
2547	sub reload_regions {	2826	sub reload_regions {
2548	load_resource_file "$MAPDIR/regions"	2827	load_resource_file "$MAPDIR/regions"
2549	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 $_->{match};
		2833	}
2550	}	2834	}
2551		2835
2552	sub reload_facedata {	2836	sub reload_facedata {
2553	load_facedata "$DATADIR/facedata"	2837	load_facedata "$DATADIR/facedata"
2554	or die "unable to load facedata\n";	2838	or die "unable to load facedata\n";
2555	}	2839	}
2556		2840
2557	sub reload_archetypes {	2841	sub reload_archetypes {
2558	load_resource_file "$DATADIR/archetypes"	2842	load_resource_file "$DATADIR/archetypes"
2559	or die "unable to load archetypes\n";	2843	or die "unable to load archetypes\n";
		2844	#d# NEED to laod twice to resolve forward references
		2845	# this really needs to be done in an extra post-pass
		2846	# (which needs to be synchronous, so solve it differently)
		2847	load_resource_file "$DATADIR/archetypes"
		2848	or die "unable to load archetypes\n";
2560	}	2849	}
2561		2850
2562	sub reload_treasures {	2851	sub reload_treasures {
2563	load_resource_file "$DATADIR/treasures"	2852	load_resource_file "$DATADIR/treasures"
2564	or die "unable to load treasurelists\n";	2853	or die "unable to load treasurelists\n";
…		…
2567	sub reload_resources {	2856	sub reload_resources {
2568	warn "reloading resource files...\n";	2857	warn "reloading resource files...\n";
2569		2858
2570	reload_regions;	2859	reload_regions;
2571	reload_facedata;	2860	reload_facedata;
		2861	#reload_archetypes;#d#
2572	reload_archetypes;	2862	reload_archetypes;
2573	reload_treasures;	2863	reload_treasures;
2574		2864
2575	warn "finished reloading resource files\n";	2865	warn "finished reloading resource files\n";
2576	}	2866	}
…		…
2633	},	2923	},
2634	);	2924	);
2635	}	2925	}
2636	}	2926	}
2637		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
2638	sub emergency_save() {	2966	sub emergency_save() {
2639	my $freeze_guard = cf::freeze_mainloop;	2967	my $freeze_guard = cf::freeze_mainloop;
2640		2968
2641	warn "enter emergency perl save\n";	2969	warn "enter emergency perl save\n";
2642		2970
…		…
2717	%EXT_CORO = ();	3045	%EXT_CORO = ();
2718		3046
2719	warn "removing commands";	3047	warn "removing commands";
2720	%COMMAND = ();	3048	%COMMAND = ();
2721		3049
2722	warn "removing ext commands";	3050	warn "removing ext/exti commands";
2723	%EXTCMD = ();	3051	%EXTCMD = ();
		3052	%EXTICMD = ();
2724		3053
2725	warn "unloading/nuking all extensions";	3054	warn "unloading/nuking all extensions";
2726	for my $pkg (@EXTS) {	3055	for my $pkg (@EXTS) {
2727	warn "... unloading $pkg";	3056	warn "... unloading $pkg";
2728		3057
…		…
2846	my $signal = new Coro::Signal;	3175	my $signal = new Coro::Signal;
2847	push @WAIT_FOR_TICK_BEGIN, $signal;	3176	push @WAIT_FOR_TICK_BEGIN, $signal;
2848	$signal->wait;	3177	$signal->wait;
2849	}	3178	}
2850		3179
		3180	my $min = 1e6;#d#
		3181	my $avg = 10;
2851	$TICK_WATCHER = Event->timer (	3182	$TICK_WATCHER = Event->timer (
2852	reentrant => 0,	3183	reentrant => 0,
2853	parked => 1,	3184	parked => 1,
2854	prio => 0,	3185	prio => 0,
2855	at => $NEXT_TICK || $TICK,	3186	at => $NEXT_TICK || $TICK,
…		…
2862	}	3193	}
2863		3194
2864	$NOW = $tick_start = Event::time;	3195	$NOW = $tick_start = Event::time;
2865		3196
2866	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	};
2867		3221
2868	$RUNTIME += $TICK;	3222	$RUNTIME += $TICK;
2869	$NEXT_TICK += $TICK;	3223	$NEXT_TICK += $TICK;
2870		3224
2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3225	if ($NOW >= $NEXT_RUNTIME_WRITE) {

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