[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.266 by root, Fri May 18 01:01:02 2007 UTC vs.
Revision 1.311 by root, Fri Jul 20 16:11:10 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
…		…
872	or return;	1030	or return;
873	$av = eval { (Storable::thaw $av)->{objs} };	1031	$av = eval { (Storable::thaw $av)->{objs} };
874	}	1032	}
875		1033
876	warn sprintf "loading %s (%d)\n",	1034	warn sprintf "loading %s (%d)\n",
877	$filename, length $data, scalar @{$av \|\| []};#d#	1035	$filename, length $data, scalar @{$av \|\| []};
878	return ($data, $av);	1036	return ($data, $av);
879	}	1037	}
		1038
		1039	=head2 COMMAND CALLBACKS
		1040
		1041	=over 4
		1042
		1043	=cut
880		1044
881	#############################################################################	1045	#############################################################################
882	# command handling &c	1046	# command handling &c
883		1047
884	=item cf::register_command $name => \&callback($ob,$args);	1048	=item cf::register_command $name => \&callback($ob,$args);
…		…
897	push @{ $COMMAND{$name} }, [$caller, $cb];	1061	push @{ $COMMAND{$name} }, [$caller, $cb];
898	}	1062	}
899		1063
900	=item cf::register_extcmd $name => \&callback($pl,$packet);	1064	=item cf::register_extcmd $name => \&callback($pl,$packet);
901		1065
902	Register a callbackf ro execution when the client sends an extcmd packet.	1066	Register a callback for execution when the client sends an (synchronous)
		1067	extcmd packet. Ext commands will be processed in the order they are
		1068	received by the server, like other user commands. The first argument is
		1069	the logged-in player. Ext commands can only be processed after a player
		1070	has logged in successfully.
903		1071
904	If the callback returns something, it is sent back as if reply was being	1072	If the callback returns something, it is sent back as if reply was being
905	called.	1073	called.
906		1074
		1075	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1076
		1077	Register a callback for execution when the client sends an (asynchronous)
		1078	exticmd packet. Exti commands are processed by the server as soon as they
		1079	are received, i.e. out of order w.r.t. other commands. The first argument
		1080	is a client socket. Exti commands can be received anytime, even before
		1081	log-in.
		1082
		1083	If the callback returns something, it is sent back as if reply was being
		1084	called.
		1085
907	=cut	1086	=cut
908		1087
909	sub register_extcmd {	1088	sub register_extcmd {
910	my ($name, $cb) = @_;	1089	my ($name, $cb) = @_;
911		1090
912	$EXTCMD{$name} = $cb;	1091	$EXTCMD{$name} = $cb;
		1092	}
		1093
		1094	sub register_exticmd {
		1095	my ($name, $cb) = @_;
		1096
		1097	$EXTICMD{$name} = $cb;
913	}	1098	}
914		1099
915	cf::player->attach (	1100	cf::player->attach (
916	on_command => sub {	1101	on_command => sub {
917	my ($pl, $name, $params) = @_;	1102	my ($pl, $name, $params) = @_;
…		…
926	cf::override;	1111	cf::override;
927	},	1112	},
928	on_extcmd => sub {	1113	on_extcmd => sub {
929	my ($pl, $buf) = @_;	1114	my ($pl, $buf) = @_;
930		1115
931	my $msg = eval { from_json $buf };	1116	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
932		1117
933	if (ref $msg) {	1118	if (ref $msg) {
934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1119	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
935	if (my %reply = $cb->($pl, $msg)) {	1120	if (my %reply = $cb->($pl, $msg)) {
936	$pl->ext_reply ($msg->{msgid}, %reply);	1121	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
942		1127
943	cf::override;	1128	cf::override;
944	},	1129	},
945	);	1130	);
946		1131
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 {	1132	sub load_extensions {
		1133	cf::sync_job {
		1134	my %todo;
		1135
982	for my $ext (<$LIBDIR/*.ext>) {	1136	for my $path (<$LIBDIR/*.ext>) {
983	next unless -r $ext;	1137	next unless -r $path;
984	eval {	1138
985	load_extension $ext;	1139	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1140	my $base = $1;
		1141	my $pkg = $1;
		1142	$pkg =~ s/[^[:word:]]/_/g;
		1143	$pkg = "ext::$pkg";
		1144
		1145	open my $fh, "<:utf8", $path
		1146	or die "$path: $!";
		1147
		1148	my $source = do { local $/; <$fh> };
		1149
		1150	my %ext = (
		1151	path => $path,
		1152	base => $base,
		1153	pkg => $pkg,
		1154	);
		1155
		1156	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1157	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1158
		1159	$ext{source} =
		1160	"package $pkg; use strict; use utf8;\n"
		1161	. "#line 1 \"$path\"\n{\n"
		1162	. $source
		1163	. "\n};\n1";
		1164
		1165	$todo{$base} = \%ext;
		1166	}
		1167
		1168	my %done;
		1169	while (%todo) {
		1170	my $progress;
		1171
		1172	while (my ($k, $v) = each %todo) {
		1173	for (split /,\s*/, $v->{meta}{depends}) {
		1174	goto skip
		1175	unless exists $done{$_};
		1176	}
		1177
		1178	warn "... loading '$k' into '$v->{pkg}'\n";
		1179
		1180	unless (eval $v->{source}) {
		1181	my $msg = $@ ? "$v->{path}: $@\n"
		1182	: "$v->{base}: extension inactive.\n";
		1183
		1184	if (exists $v->{meta}{mandatory}) {
		1185	warn $msg;
		1186	warn "mandatory extension failed to load, exiting.\n";
		1187	exit 1;
		1188	}
		1189
		1190	warn $msg;
		1191	}
		1192
		1193	$done{$k} = delete $todo{$k};
		1194	push @EXTS, $v->{pkg};
		1195	$progress = 1;
986	1	1196	}
987	} or warn "$ext not loaded: $@";	1197
		1198	skip:
		1199	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1200	unless $progress;
		1201	}
988	}	1202	};
989	}	1203	}
990		1204
991	#############################################################################	1205	#############################################################################
		1206
		1207	=back
992		1208
993	=head2 CORE EXTENSIONS	1209	=head2 CORE EXTENSIONS
994		1210
995	Functions and methods that extend core crossfire objects.	1211	Functions and methods that extend core crossfire objects.
996		1212
…		…
1184	}	1400	}
1185		1401
1186	\@paths	1402	\@paths
1187	}	1403	}
1188		1404
		1405	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1406
		1407	Expand crossfire pod fragments into protocol xml.
		1408
		1409	=cut
		1410
		1411	sub expand_cfpod {
		1412	((my $self), (local $_)) = @_;
		1413
		1414	# escape & and <
		1415	s/&/&/g;
		1416	s/(?<![BIUGH])</</g;
		1417
		1418	# this is buggy, it needs to properly take care of nested <'s
		1419
		1420	1 while
		1421	# replace B<>, I<>, U<> etc.
		1422	s/B<([^\>]*)>/<b>$1<\/b>/
		1423	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1424	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1425	# replace G<male\|female> tags
		1426	\|\| s{G<([^>\|])\\|([^>])>}{
		1427	$self->gender ? $2 : $1
		1428	}ge
		1429	# replace H<hint text>
		1430	\|\| s{H<([^\>]*)>}
		1431	{
		1432	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1433	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1434	"")
		1435	[$self->{hintmode}]
		1436	}ge;
		1437
		1438	# create single paragraphs (very hackish)
		1439	s/(?<=\S)\n(?=\w)/ /g;
		1440
		1441	# compress some whitespace
		1442	s/\s+\n/\n/g; # ws line-ends
		1443	s/\n\n+/\n/g; # double lines
		1444	s/^\n+//; # beginning lines
		1445	s/\n+$//; # ending lines
		1446
		1447	$_
		1448	}
		1449
		1450	sub hintmode {
		1451	$_[0]{hintmode} = $_[1] if @_ > 1;
		1452	$_[0]{hintmode}
		1453	}
		1454
1189	=item $player->ext_reply ($msgid, %msg)	1455	=item $player->ext_reply ($msgid, %msg)
1190		1456
1191	Sends an ext reply to the player.	1457	Sends an ext reply to the player.
1192		1458
1193	=cut	1459	=cut
1194		1460
1195	sub ext_reply($$%) {	1461	sub ext_reply($$%) {
1196	my ($self, $id, %msg) = @_;	1462	my ($self, $id, %msg) = @_;
1197		1463
1198	$msg{msgid} = $id;	1464	$msg{msgid} = $id;
1199		1465	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1200	$self->send ("ext " . cf::to_json \%msg);
1201	}	1466	}
1202		1467
1203	=item $player->ext_event ($type, %msg)	1468	=item $player->ext_event ($type, %msg)
1204		1469
1205	Sends an ext event to the client.	1470	Sends an ext event to the client.
…		…
1220		1485
1221	package cf::region;	1486	package cf::region;
1222		1487
1223	=item cf::region::find_by_path $path	1488	=item cf::region::find_by_path $path
1224		1489
1225	Tries to decuce the probable region for a map knowing only its path.	1490	Tries to decuce the likely region for a map knowing only its path.
1226		1491
1227	=cut	1492	=cut
1228		1493
1229	sub find_by_path($) {	1494	sub find_by_path($) {
1230	my ($path) = @_;	1495	my ($path) = @_;
1231		1496
1232	my ($match, $specificity);	1497	my ($match, $specificity);
1233		1498
1234	for my $region (list) {	1499	for my $region (list) {
1235	if ($region->match && $path =~ $region->match) {	1500	if ($region->{match} && $path =~ $region->{match}) {
1236	($match, $specificity) = ($region, $region->specificity)	1501	($match, $specificity) = ($region, $region->specificity)
1237	if $region->specificity > $specificity;	1502	if $region->specificity > $specificity;
1238	}	1503	}
1239	}	1504	}
1240		1505
…		…
1304	my ($self, $merge) = @_;	1569	my ($self, $merge) = @_;
1305		1570
1306	# we have to keep some variables in memory intact	1571	# we have to keep some variables in memory intact
1307	local $self->{path};	1572	local $self->{path};
1308	local $self->{load_path};	1573	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		1574
1312	$self->SUPER::thawer_merge ($merge);	1575	$self->SUPER::thawer_merge ($merge);
1313	}	1576	}
1314		1577
1315	sub normalise {	1578	sub normalise {
…		…
1362	$self->init; # pass $1 etc.	1625	$self->init; # pass $1 etc.
1363	return $self;	1626	return $self;
1364	}	1627	}
1365	}	1628	}
1366		1629
1367	Carp::carp "unable to resolve path '$path' (base '$base').";	1630	Carp::cluck "unable to resolve path '$path' (base '$base').";
1368	()	1631	()
1369	}	1632	}
1370		1633
1371	sub init {	1634	sub init {
1372	my ($self) = @_;	1635	my ($self) = @_;
…		…
1413	sub change_all_map_light {	1676	sub change_all_map_light {
1414	my ($change) = @_;	1677	my ($change) = @_;
1415		1678
1416	$_->change_map_light ($change)	1679	$_->change_map_light ($change)
1417	for grep $_->outdoor, values %cf::MAP;	1680	for grep $_->outdoor, values %cf::MAP;
		1681	}
		1682
		1683	sub decay_objects {
		1684	my ($self) = @_;
		1685
		1686	return if $self->{deny_reset};
		1687
		1688	$self->do_decay_objects;
1418	}	1689	}
1419		1690
1420	sub unlink_save {	1691	sub unlink_save {
1421	my ($self) = @_;	1692	my ($self) = @_;
1422		1693
…		…
1480	$self->load_header_orig	1751	$self->load_header_orig
1481	or return;	1752	or return;
1482	$self->prepare_orig;	1753	$self->prepare_orig;
1483	}	1754	}
1484		1755
		1756	$self->{deny_reset} = 1
		1757	if $self->no_reset;
		1758
1485	$self->default_region (cf::region::find_by_path $self->{path})	1759	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	1760	unless $self->default_region;
1487		1761
1488	1	1762	1
1489	}	1763	}
…		…
1504	$map->{last_save} = $cf::RUNTIME;	1778	$map->{last_save} = $cf::RUNTIME;
1505		1779
1506	$map->load_header	1780	$map->load_header
1507	or return;	1781	or return;
1508		1782
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1783	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	1784	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	1785	#$cf::WAIT_FOR_TICK->wait;
1512	$map->reset;	1786	$map->reset;
1513	undef $guard;	1787	undef $guard;
1514	return find $path;	1788	return find $path;
…		…
1581	my ($self, $ob) = @_;	1855	my ($self, $ob) = @_;
1582		1856
1583	return find "~" . $ob->name . "/" . $self->{path}	1857	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	1858	if $self->per_player;
1585		1859
		1860	# return find "?party/" . $ob->name . "/" . $self->{path}
		1861	# if $self->per_party;
		1862
1586	$self	1863	$self
1587	}	1864	}
1588		1865
1589	# find and load all maps in the 3x3 area around a map	1866	# find and load all maps in the 3x3 area around a map
1590	sub load_diag {	1867	sub load_diag {
…		…
1636		1913
1637	undef $MAP_PREFETCH{$path};	1914	undef $MAP_PREFETCH{$path};
1638	$MAP_PREFETCHER \|\|= cf::async {	1915	$MAP_PREFETCHER \|\|= cf::async {
1639	while (%MAP_PREFETCH) {	1916	while (%MAP_PREFETCH) {
1640	for my $path (keys %MAP_PREFETCH) {	1917	for my $path (keys %MAP_PREFETCH) {
1641	my $map = find $path	1918	if (my $map = find $path) {
1642	or next;
1643	$map->load;	1919	$map->load;
		1920	}
1644		1921
1645	delete $MAP_PREFETCH{$path};	1922	delete $MAP_PREFETCH{$path};
1646	}	1923	}
1647	}	1924	}
1648	undef $MAP_PREFETCHER;	1925	undef $MAP_PREFETCHER;
…		…
1700		1977
1701	sub reset_at {	1978	sub reset_at {
1702	my ($self) = @_;	1979	my ($self) = @_;
1703		1980
1704	# TODO: safety, remove and allow resettable per-player maps	1981	# 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};	1982	return 1e99 if $self->{deny_reset};
1707		1983
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1984	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1985	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1710		1986
…		…
1721	my ($self) = @_;	1997	my ($self) = @_;
1722		1998
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	1999	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		2000
1725	return if $self->players;	2001	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		2002
1728	warn "resetting map ", $self->path;#d#	2003	warn "resetting map ", $self->path;
1729		2004
1730	$self->in_memory (cf::MAP_SWAPPED);	2005	$self->in_memory (cf::MAP_SWAPPED);
1731		2006
1732	# need to save uniques path	2007	# need to save uniques path
1733	unless ($self->{deny_save}) {	2008	unless ($self->{deny_save}) {
…		…
1765	$cf::MAP{$self->path} = $self;	2040	$cf::MAP{$self->path} = $self;
1766		2041
1767	$self->reset; # polite request, might not happen	2042	$self->reset; # polite request, might not happen
1768	}	2043	}
1769		2044
		2045	=item $maps = cf::map::tmp_maps
		2046
		2047	Returns an arrayref with all map paths of currently instantiated and saved
		2048	maps. May block.
		2049
		2050	=cut
		2051
		2052	sub tmp_maps() {
		2053	[
		2054	map {
		2055	utf8::decode $_;
		2056	/\.map$/
		2057	? normalise $_
		2058	: ()
		2059	} @{ aio_readdir $TMPDIR or [] }
		2060	]
		2061	}
		2062
		2063	=item $maps = cf::map::random_maps
		2064
		2065	Returns an arrayref with all map paths of currently instantiated and saved
		2066	random maps. May block.
		2067
		2068	=cut
		2069
		2070	sub random_maps() {
		2071	[
		2072	map {
		2073	utf8::decode $_;
		2074	/\.map$/
		2075	? normalise "?random/$_"
		2076	: ()
		2077	} @{ aio_readdir $RANDOMDIR or [] }
		2078	]
		2079	}
		2080
1770	=item cf::map::unique_maps	2081	=item cf::map::unique_maps
1771		2082
1772	Returns an arrayref of paths of all shared maps that have	2083	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	2084	instantiated unique items. May block.
1774		2085
1775	=cut	2086	=cut
1776		2087
1777	sub unique_maps() {	2088	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	2089	[
1779	or return;	2090	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	2091	utf8::decode $_;
1785	next if /\.pst$/;	2092	/\.map$/
1786	next unless /^$PATH_SEP/o;	2093	? normalise $_
1787		2094	: ()
1788	push @paths, cf::map::normalise $_;	2095	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	2096	]
1790
1791	\@paths
1792	}	2097	}
1793		2098
1794	package cf;	2099	package cf;
1795		2100
1796	=back	2101	=back
…		…
1842		2147
1843	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2148	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1844		2149
1845	if ($self->{record_replies}) {	2150	if ($self->{record_replies}) {
1846	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2151	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2152
1847	} else {	2153	} else {
		2154	my $pl = $self->contr;
		2155
		2156	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2157	my $diag = $pl->{npc_dialog};
		2158	$diag->{pl}->ext_reply (
		2159	$diag->{id},
		2160	msgtype => "reply",
		2161	msg => $diag->{pl}->expand_cfpod ($msg),
		2162	add_topics => []
		2163	);
		2164
		2165	} else {
1848	$msg = $npc->name . " says: $msg" if $npc;	2166	$msg = $npc->name . " says: $msg" if $npc;
1849	$self->message ($msg, $flags);	2167	$self->message ($msg, $flags);
		2168	}
1850	}	2169	}
1851	}	2170	}
1852		2171
1853	=item $player_object->may ("access")	2172	=item $player_object->may ("access")
1854		2173
…		…
1902	$self->deactivate_recursive;	2221	$self->deactivate_recursive;
1903		2222
1904	return if UNIVERSAL::isa $self->map, "ext::map_link";	2223	return if UNIVERSAL::isa $self->map, "ext::map_link";
1905		2224
1906	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2225	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1907	if $self->map;	2226	if $self->map && $self->map->{path} ne "{link}";
1908		2227
1909	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2228	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1910	}	2229	}
1911		2230
1912	sub cf::object::player::leave_link {	2231	sub cf::object::player::leave_link {
1913	my ($self, $map, $x, $y) = @_;	2232	my ($self, $map, $x, $y) = @_;
		2233
		2234	return unless $self->contr->active;
1914		2235
1915	my $link_pos = delete $self->{_link_pos};	2236	my $link_pos = delete $self->{_link_pos};
1916		2237
1917	unless ($map) {	2238	unless ($map) {
1918	# restore original map position	2239	# restore original map position
…		…
1941		2262
1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2263	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1943	$self->enter_map ($map, $x, $y);	2264	$self->enter_map ($map, $x, $y);
1944	}	2265	}
1945		2266
1946	cf::player->attach (	2267	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1947	on_logout => sub {
1948	my ($pl) = @_;
1949		2268
1950	# abort map switching before logout	2269	Moves the player to the given map-path and coordinates by first freezing
1951	if ($pl->ob->{_link_pos}) {	2270	her, loading and preparing them map, calling the provided $check callback
1952	cf::sync_job {	2271	that has to return the map if sucecssful, and then unfreezes the player on
1953	$pl->ob->leave_link	2272	the new (success) or old (failed) map position. In either case, $done will
1954	};	2273	be called at the end of this process.
1955	}
1956	},
1957	on_login => sub {
1958	my ($pl) = @_;
1959		2274
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	2275	=cut
		2276
		2277	our $GOTOGEN;
1981		2278
1982	sub cf::object::player::goto {	2279	sub cf::object::player::goto {
1983	my ($self, $path, $x, $y) = @_;	2280	my ($self, $path, $x, $y, $check, $done) = @_;
		2281
		2282	# do generation counting so two concurrent goto's will be executed in-order
		2283	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1984		2284
1985	$self->enter_link;	2285	$self->enter_link;
1986		2286
1987	(async {	2287	(async {
1988	my $map = eval {	2288	my $map = eval {
1989	my $map = cf::map::find $path;	2289	my $map = cf::map::find $path;
		2290
		2291	if ($map) {
1990	$map = $map->customise_for ($self) if $map;	2292	$map = $map->customise_for ($self);
		2293	$map = $check->($map) if $check && $map;
		2294	} else {
		2295	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		2296	}
		2297
1991	$map	2298	$map
		2299	};
		2300
		2301	if ($@) {
		2302	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
		2303	LOG llevError \| logBacktrace, Carp::longmess $@;
1992	} or	2304	}
1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
1994		2305
		2306	if ($gen == $self->{_goto_generation}) {
		2307	delete $self->{_goto_generation};
1995	$self->leave_link ($map, $x, $y);	2308	$self->leave_link ($map, $x, $y);
		2309	}
		2310
		2311	$done->() if $done;
1996	})->prio (1);	2312	})->prio (1);
1997	}	2313	}
1998		2314
1999	=item $player_object->enter_exit ($exit_object)	2315	=item $player_object->enter_exit ($exit_object)
2000		2316
…		…
2069	my $hp = $exit->stats->hp;	2385	my $hp = $exit->stats->hp;
2070	my $sp = $exit->stats->sp;	2386	my $sp = $exit->stats->sp;
2071		2387
2072	$self->enter_link;	2388	$self->enter_link;
2073		2389
		2390	# if exit is damned, update players death & WoR home-position
		2391	$self->contr->savebed ($slaying, $hp, $sp)
		2392	if $exit->flag (FLAG_DAMNED);
		2393
2074	(async {	2394	(async {
2075	$self->deactivate_recursive; # just to be sure	2395	$self->deactivate_recursive; # just to be sure
2076	unless (eval {	2396	unless (eval {
2077	$self->goto ($slaying, $hp, $sp);	2397	$self->goto ($slaying, $hp, $sp);
2078		2398
…		…
2105		2425
2106	utf8::encode $text;	2426	utf8::encode $text;
2107	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2427	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2108	}	2428	}
2109		2429
		2430	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2431
		2432	Send a drawinfo or msg packet to the client, formatting the msg for the
		2433	client if neccessary. C<$type> should be a string identifying the type of
		2434	the message, with C<log> being the default. If C<$color> is negative, suppress
		2435	the message unless the client supports the msg packet.
		2436
		2437	=cut
		2438
		2439	sub cf::client::send_msg {
		2440	my ($self, $channel, $msg, $color, @extra) = @_;
		2441
		2442	$msg = $self->pl->expand_cfpod ($msg);
		2443
		2444	return unless @extra \|\| length $msg;
		2445
		2446	$color &= ~cf::NDI_UNIQUE; # just in case...
		2447
		2448	if (ref $channel) {
		2449	# send meta info to client, if not yet sent
		2450	unless (exists $self->{channel}{$channel->{id}}) {
		2451	$self->{channel}{$channel->{id}} = $channel;
		2452	$self->ext_event (channel_info => %$channel);
		2453	}
		2454
		2455	$channel = $channel->{id};
		2456	}
		2457
		2458	if ($self->can_msg) {
		2459	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2460	} else {
		2461	# replace some tags by gcfclient-compatible ones
		2462	for ($msg) {
		2463	1 while
		2464	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2465	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2466	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2467	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2468	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2469	}
		2470
		2471	if ($color >= 0) {
		2472	if (0 && $msg =~ /\[/) {
		2473	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2474	} else {
		2475	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2476	$self->send_packet ("drawinfo $color $msg")
		2477	}
		2478	}
		2479	}
		2480	}
		2481
2110	=item $client->ext_event ($type, %msg)	2482	=item $client->ext_event ($type, %msg)
2111		2483
2112	Sends an exti event to the client.	2484	Sends an ext event to the client.
2113		2485
2114	=cut	2486	=cut
2115		2487
2116	sub cf::client::ext_event($$%) {	2488	sub cf::client::ext_event($$%) {
2117	my ($self, $type, %msg) = @_;	2489	my ($self, $type, %msg) = @_;
2118		2490
		2491	return unless $self->extcmd;
		2492
2119	$msg{msgtype} = "event_$type";	2493	$msg{msgtype} = "event_$type";
2120	$self->send_packet ("ext " . cf::to_json \%msg);	2494	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2121	}	2495	}
2122		2496
2123	=item $success = $client->query ($flags, "text", \&cb)	2497	=item $success = $client->query ($flags, "text", \&cb)
2124		2498
2125	Queues a query to the client, calling the given callback with	2499	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>,	2500	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>.	2501	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2128		2502
2129	Queries can fail, so check the return code. Or don't, as queries will become	2503	Queries can fail, so check the return code. Or don't, as queries will
2130	reliable at some point in the future.	2504	become reliable at some point in the future.
2131		2505
2132	=cut	2506	=cut
2133		2507
2134	sub cf::client::query {	2508	sub cf::client::query {
2135	my ($self, $flags, $text, $cb) = @_;	2509	my ($self, $flags, $text, $cb) = @_;
…		…
2143	utf8::encode $text;	2517	utf8::encode $text;
2144	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2518	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2145		2519
2146	$self->send_packet ($self->{query_queue}[0][0])	2520	$self->send_packet ($self->{query_queue}[0][0])
2147	if @{ $self->{query_queue} } == 1;	2521	if @{ $self->{query_queue} } == 1;
		2522
		2523	1
2148	}	2524	}
2149		2525
2150	cf::client->attach (	2526	cf::client->attach (
		2527	on_connect => sub {
		2528	my ($ns) = @_;
		2529
		2530	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2531	},
2151	on_reply => sub {	2532	on_reply => sub {
2152	my ($ns, $msg) = @_;	2533	my ($ns, $msg) = @_;
2153		2534
2154	# this weird shuffling is so that direct followup queries	2535	# this weird shuffling is so that direct followup queries
2155	# get handled first	2536	# get handled first
…		…
2167	} else {	2548	} else {
2168	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2549	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2169	}	2550	}
2170	}	2551	}
2171	},	2552	},
		2553	on_exticmd => sub {
		2554	my ($ns, $buf) = @_;
		2555
		2556	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2557
		2558	if (ref $msg) {
		2559	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2560	if (my %reply = $cb->($ns, $msg)) {
		2561	$reply{msgid} = $msg->{msgid};
		2562	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2563	}
		2564	}
		2565	} else {
		2566	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2567	}
		2568
		2569	cf::override;
		2570	},
2172	);	2571	);
2173		2572
2174	=item $client->async (\&cb)	2573	=item $client->async (\&cb)
2175		2574
2176	Create a new coroutine, running the specified callback. The coroutine will	2575	Create a new coroutine, running the specified callback. The coroutine will
…		…
2225		2624
2226	=pod	2625	=pod
2227		2626
2228	The following functions and methods are available within a safe environment:	2627	The following functions and methods are available within a safe environment:
2229		2628
2230	cf::object contr pay_amount pay_player map	2629	cf::object
		2630	contr pay_amount pay_player map x y force_find force_add
		2631	insert remove
		2632
2231	cf::object::player player	2633	cf::object::player
2232	cf::player peaceful	2634	player
2233	cf::map trigger	2635
		2636	cf::player
		2637	peaceful
		2638
		2639	cf::map
		2640	trigger
2234		2641
2235	=cut	2642	=cut
2236		2643
2237	for (	2644	for (
2238	["cf::object" => qw(contr pay_amount pay_player map)],	2645	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2646	insert remove)],
2239	["cf::object::player" => qw(player)],	2647	["cf::object::player" => qw(player)],
2240	["cf::player" => qw(peaceful)],	2648	["cf::player" => qw(peaceful)],
2241	["cf::map" => qw(trigger)],	2649	["cf::map" => qw(trigger)],
2242	) {	2650	) {
2243	no strict 'refs';	2651	no strict 'refs';
…		…
2314	=back	2722	=back
2315		2723
2316	=cut	2724	=cut
2317		2725
2318	#############################################################################	2726	#############################################################################
2319
2320	=head2 EXTENSION DATABASE SUPPORT
2321
2322	Crossfire maintains a very simple database for extension use. It can
2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2324	convert to/from binary).
2325
2326	The parameter C<$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 $@;
2486	_exit 0;
2487	}
2488	}
2489
2490
2491
2492	#############################################################################
2493	# the server's init and main functions	2727	# the server's init and main functions
2494		2728
2495	sub load_facedata($) {	2729	sub load_facedata($) {
2496	my ($path) = @_;	2730	my ($path) = @_;
2497		2731
…		…
2509	{	2743	{
2510	my $faces = $facedata->{faceinfo};	2744	my $faces = $facedata->{faceinfo};
2511		2745
2512	while (my ($face, $info) = each %$faces) {	2746	while (my ($face, $info) = each %$faces) {
2513	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;	2747	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;
2514	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2748	cf::face::set_visibility $idx, $info->{visibility};
		2749	cf::face::set_magicmap $idx, $info->{magicmap};
2515	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2750	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2516	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2751	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2517	Coro::cede;	2752
		2753	cf::cede_to_tick;
2518	}	2754	}
2519		2755
2520	while (my ($face, $info) = each %$faces) {	2756	while (my ($face, $info) = each %$faces) {
2521	next unless $info->{smooth};	2757	next unless $info->{smooth};
2522	my $idx = cf::face::find $face	2758	my $idx = cf::face::find $face
2523	or next;	2759	or next;
2524	if (my $smooth = cf::face::find $info->{smooth}) {	2760	if (my $smooth = cf::face::find $info->{smooth}) {
		2761	cf::face::set_smooth $idx, $smooth;
2525	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2762	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2526	} else {	2763	} else {
2527	warn "smooth face '$info->{smooth}' not found for face '$face'";	2764	warn "smooth face '$info->{smooth}' not found for face '$face'";
2528	}	2765	}
2529	Coro::cede;	2766
		2767	cf::cede_to_tick;
2530	}	2768	}
2531	}	2769	}
2532		2770
2533	{	2771	{
2534	my $anims = $facedata->{animinfo};	2772	my $anims = $facedata->{animinfo};
2535		2773
2536	while (my ($anim, $info) = each %$anims) {	2774	while (my ($anim, $info) = each %$anims) {
2537	cf::anim::set $anim, $info->{frames}, $info->{facings};	2775	cf::anim::set $anim, $info->{frames}, $info->{facings};
2538	Coro::cede;	2776	cf::cede_to_tick;
2539	}	2777	}
2540		2778
2541	cf::anim::invalidate_all; # d'oh	2779	cf::anim::invalidate_all; # d'oh
		2780	}
		2781
		2782	{
		2783	# TODO: for gcfclient pleasure, we should give resources
		2784	# that gcfclient doesn't grok a >10000 face index.
		2785	my $res = $facedata->{resource};
		2786	my $enc = JSON::XS->new->utf8->canonical;
		2787
		2788	while (my ($name, $info) = each %$res) {
		2789	my $meta = $enc->encode ({
		2790	name => $name,
		2791	type => $info->{type},
		2792	copyright => $info->{copyright}, #TODO#
		2793	});
		2794
		2795	my $idx = (cf::face::find $name) \|\| cf::face::alloc $name;
		2796
		2797	if ($name =~ /\.jpg$/) {
		2798	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2799	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2800	} else {
		2801	my $data = pack "(w/a)", $meta, $info->{data};
		2802	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2803
		2804	cf::face::set_type $idx, 1;
		2805	cf::face::set_data $idx, 0, $data, $chk;
		2806	}
		2807
		2808	cf::cede_to_tick;
		2809	}
2542	}	2810	}
2543		2811
2544	1	2812	1
2545	}	2813	}
2546		2814
2547	sub reload_regions {	2815	sub reload_regions {
2548	load_resource_file "$MAPDIR/regions"	2816	load_resource_file "$MAPDIR/regions"
2549	or die "unable to load regions file\n";	2817	or die "unable to load regions file\n";
		2818
		2819	for (cf::region::list) {
		2820	$_->{match} = qr/$_->{match}/
		2821	if exists $_->{match};
		2822	}
2550	}	2823	}
2551		2824
2552	sub reload_facedata {	2825	sub reload_facedata {
2553	load_facedata "$DATADIR/facedata"	2826	load_facedata "$DATADIR/facedata"
2554	or die "unable to load facedata\n";	2827	or die "unable to load facedata\n";
2555	}	2828	}
2556		2829
2557	sub reload_archetypes {	2830	sub reload_archetypes {
2558	load_resource_file "$DATADIR/archetypes"	2831	load_resource_file "$DATADIR/archetypes"
2559	or die "unable to load archetypes\n";	2832	or die "unable to load archetypes\n";
		2833	#d# NEED to laod twice to resolve forward references
		2834	# this really needs to be done in an extra post-pass
		2835	# (which needs to be synchronous, so solve it differently)
		2836	load_resource_file "$DATADIR/archetypes"
		2837	or die "unable to load archetypes\n";
2560	}	2838	}
2561		2839
2562	sub reload_treasures {	2840	sub reload_treasures {
2563	load_resource_file "$DATADIR/treasures"	2841	load_resource_file "$DATADIR/treasures"
2564	or die "unable to load treasurelists\n";	2842	or die "unable to load treasurelists\n";
…		…
2567	sub reload_resources {	2845	sub reload_resources {
2568	warn "reloading resource files...\n";	2846	warn "reloading resource files...\n";
2569		2847
2570	reload_regions;	2848	reload_regions;
2571	reload_facedata;	2849	reload_facedata;
		2850	#reload_archetypes;#d#
2572	reload_archetypes;	2851	reload_archetypes;
2573	reload_treasures;	2852	reload_treasures;
2574		2853
2575	warn "finished reloading resource files\n";	2854	warn "finished reloading resource files\n";
2576	}	2855	}
…		…
2633	},	2912	},
2634	);	2913	);
2635	}	2914	}
2636	}	2915	}
2637		2916
		2917	sub write_runtime {
		2918	my $runtime = "$LOCALDIR/runtime";
		2919
		2920	# first touch the runtime file to show we are still running:
		2921	# the fsync below can take a very very long time.
		2922
		2923	IO::AIO::aio_utime $runtime, undef, undef;
		2924
		2925	my $guard = cf::lock_acquire "write_runtime";
		2926
		2927	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2928	or return;
		2929
		2930	my $value = $cf::RUNTIME + 90 + 10;
		2931	# 10 is the runtime save interval, for a monotonic clock
		2932	# 60 allows for the watchdog to kill the server.
		2933
		2934	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2935	and return;
		2936
		2937	# always fsync - this file is important
		2938	aio_fsync $fh
		2939	and return;
		2940
		2941	# touch it again to show we are up-to-date
		2942	aio_utime $fh, undef, undef;
		2943
		2944	close $fh
		2945	or return;
		2946
		2947	aio_rename "$runtime~", $runtime
		2948	and return;
		2949
		2950	warn "runtime file written.\n";
		2951
		2952	1
		2953	}
		2954
2638	sub emergency_save() {	2955	sub emergency_save() {
2639	my $freeze_guard = cf::freeze_mainloop;	2956	my $freeze_guard = cf::freeze_mainloop;
2640		2957
2641	warn "enter emergency perl save\n";	2958	warn "enter emergency perl save\n";
2642		2959
…		…
2717	%EXT_CORO = ();	3034	%EXT_CORO = ();
2718		3035
2719	warn "removing commands";	3036	warn "removing commands";
2720	%COMMAND = ();	3037	%COMMAND = ();
2721		3038
2722	warn "removing ext commands";	3039	warn "removing ext/exti commands";
2723	%EXTCMD = ();	3040	%EXTCMD = ();
		3041	%EXTICMD = ();
2724		3042
2725	warn "unloading/nuking all extensions";	3043	warn "unloading/nuking all extensions";
2726	for my $pkg (@EXTS) {	3044	for my $pkg (@EXTS) {
2727	warn "... unloading $pkg";	3045	warn "... unloading $pkg";
2728		3046
…		…
2846	my $signal = new Coro::Signal;	3164	my $signal = new Coro::Signal;
2847	push @WAIT_FOR_TICK_BEGIN, $signal;	3165	push @WAIT_FOR_TICK_BEGIN, $signal;
2848	$signal->wait;	3166	$signal->wait;
2849	}	3167	}
2850		3168
		3169	my $min = 1e6;#d#
		3170	my $avg = 10;
2851	$TICK_WATCHER = Event->timer (	3171	$TICK_WATCHER = Event->timer (
2852	reentrant => 0,	3172	reentrant => 0,
2853	parked => 1,	3173	parked => 1,
2854	prio => 0,	3174	prio => 0,
2855	at => $NEXT_TICK \|\| $TICK,	3175	at => $NEXT_TICK \|\| $TICK,
…		…
2862	}	3182	}
2863		3183
2864	$NOW = $tick_start = Event::time;	3184	$NOW = $tick_start = Event::time;
2865		3185
2866	cf::server_tick; # one server iteration	3186	cf::server_tick; # one server iteration
		3187
		3188	0 && sync_job {#d#
		3189	for(1..10) {
		3190	my $t = Event::time;
		3191	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3192	or die;
		3193
		3194	$map->width (50);
		3195	$map->height (50);
		3196	$map->alloc;
		3197	$map->_load_objects ("/tmp/x.map", 1);
		3198	my $t = Event::time - $t;
		3199
		3200	#next unless $t < 0.0013;#d#
		3201	if ($t < $min) {
		3202	$min = $t;
		3203	}
		3204	$avg = $avg * 0.99 + $t * 0.01;
		3205	}
		3206	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3207	exit 0;
		3208	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3209	};
2867		3210
2868	$RUNTIME += $TICK;	3211	$RUNTIME += $TICK;
2869	$NEXT_TICK += $TICK;	3212	$NEXT_TICK += $TICK;
2870		3213
2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3214	if ($NOW >= $NEXT_RUNTIME_WRITE) {

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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 1.311 by root, Fri Jul 20 16:11:10 2007 UTC

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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 1.311 by root, Fri Jul 20 16:11:10 2007 UTC