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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.270 by root, Sat May 26 15:44:06 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 2007 UTC

…		…
49	our %COMMAND = ();	49	our %COMMAND = ();
50	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
51		51
52	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	55	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	56	our %EXT_MAP = (); # pluggable maps
56		57
57	our $RELOAD; # number of reloads so far	58	our $RELOAD; # number of reloads so far
58	our @EVENT;	59	our @EVENT;
…		…
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		195
194	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	197	# within the Safe compartment.
196	for my $pkg (qw(	198	for my $pkg (qw(
197	cf::global cf::attachable	199	cf::global cf::attachable
…		…
205	}	207	}
206		208
207	$Event::DIED = sub {	209	$Event::DIED = sub {
208	warn "error in event callback: @_";	210	warn "error in event callback: @_";
209	};	211	};
		212
		213	#############################################################################
210		214
211	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
212		216
213	=over 4	217	=over 4
214		218
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	238	$d
235	} \|\| "[unable to dump $_[0]: '$@']";	239	} \|\| "[unable to dump $_[0]: '$@']";
236	}	240	}
237		241
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	242	use JSON::XS ();
239		243
240	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
241		245
242	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
243		247
244	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
245		249
246	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
		251
		252	=cut
		253
		254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
		255
		256	sub to_json ($) { $json_coder->encode ($_[0]) }
		257	sub from_json ($) { $json_coder->decode ($_[0]) }
247		258
248	=item cf::lock_wait $string	259	=item cf::lock_wait $string
249		260
250	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
251		262
…		…
317		328
318	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
319		330
320	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
321		332
322	The design of crossfire+ requires that the main coro ($Coro::main) is	333	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	334	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.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
325		337
326	If it must be done, put the blocking parts into C<sync_job>. This will run	338	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	339	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	340	server will be frozen during this time, so the block should either finish
329	fast or be very important.	341	fast or be very important.
…		…
389	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
390		402
391	$coro	403	$coro
392	}	404	}
393		405
394	sub write_runtime {	406	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		407
397	# first touch the runtime file to show we are still running:	408	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
399		412
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	413	=cut
401	utime undef, undef, $fh;
402	}
403		414
404	my $guard = cf::lock_acquire "write_runtime";	415	sub fork_call(&@) {
		416	my ($cb, @args) = @_;
405		417
406	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
407	or return;	419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
408		422
409	my $value = $cf::RUNTIME + 90 + 10;	423	if (my $pid = fork) {
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	424	close $fh2;
424	or return;
425		425
426	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
427	and return;	427	$res = Coro::Storable::thaw $res;
428		428
429	warn "runtime file written.\n";#d#	429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
430		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
431	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
432	}	564	}
433		565
434	=item cf::datalog type => key => value, ...	566	=item cf::datalog type => key => value, ...
435		567
436	Log a datalog packet of the given type with the given key-value pairs.	568	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")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
456		588
457	In the following description, CLASS can be any of C<global>, C<object>	589	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	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	591	Crossfire TRT).
460		592
461	=over 4	593	=over 4
462		594
463	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
464		596
…		…
666	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
667	}	799	}
668		800
669	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
670	} else {	802	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	804	}
673		805
674	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
675	}	807	}
676		808
…		…
874	or return;	1006	or return;
875	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
876	}	1008	}
877		1009
878	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
879	$filename, length $data, scalar @{$av \|\| []};#d#	1011	$filename, length $data, scalar @{$av \|\| []};
880	return ($data, $av);	1012	return ($data, $av);
881	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
882		1020
883	#############################################################################	1021	#############################################################################
884	# command handling &c	1022	# command handling &c
885		1023
886	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1038	}
901		1039
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1041
904	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
905		1047
906	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
907	called.	1049	called.
908		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
909	=cut	1062	=cut
910		1063
911	sub register_extcmd {	1064	sub register_extcmd {
912	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
913		1066
914	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
915	}	1074	}
916		1075
917	cf::player->attach (	1076	cf::player->attach (
918	on_command => sub {	1077	on_command => sub {
919	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
944		1103
945	cf::override;	1104	cf::override;
946	},	1105	},
947	);	1106	);
948		1107
949	sub load_extension {
950	my ($path) = @_;
951
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
953	my $base = $1;
954	my $pkg = $1;
955	$pkg =~ s/[^[:word:]]/_/g;
956	$pkg = "ext::$pkg";
957
958	warn "... loading '$path' into '$pkg'\n";
959
960	open my $fh, "<:utf8", $path
961	or die "$path: $!";
962
963	my $source =
964	"package $pkg; use strict; use utf8;\n"
965	. "#line 1 \"$path\"\n{\n"
966	. (do { local $/; <$fh> })
967	. "\n};\n1";
968
969	unless (eval $source) {
970	my $msg = $@ ? "$path: $@\n"
971	: "extension disabled.\n";
972	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
973	warn $@;
974	warn "mandatory extension failed to load, exiting.\n";
975	exit 1;
976	}
977	die $@;
978	}
979
980	push @EXTS, $pkg;
981	}
982
983	sub load_extensions {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
984	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1113	next unless -r $path;
986	eval {	1114
987	load_extension $ext;	1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
988	1	1172	}
989	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
990	}	1178	};
991	}	1179	}
992		1180
993	#############################################################################	1181	#############################################################################
		1182
		1183	=back
994		1184
995	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
996		1186
997	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
998		1188
…		…
1186	}	1376	}
1187		1377
1188	\@paths	1378	\@paths
1189	}	1379	}
1190		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&/g;
		1392	s/(?<![BIUGH])</</g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male\|female> tags
		1402	\|\| s{G<([^>\|])\\|([^>])>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	\|\| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
1191	=item $player->ext_reply ($msgid, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1192		1415
1193	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1194		1417
1195	=cut	1418	=cut
1196		1419
1197	sub ext_reply($$%) {	1420	sub ext_reply($$%) {
1198	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1199		1422
1200	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1201
1202	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1203	}	1425	}
1204		1426
1205	=item $player->ext_event ($type, %msg)	1427	=item $player->ext_event ($type, %msg)
1206		1428
…		…
1222		1444
1223	package cf::region;	1445	package cf::region;
1224		1446
1225	=item cf::region::find_by_path $path	1447	=item cf::region::find_by_path $path
1226		1448
1227	Tries to decuce the probable region for a map knowing only its path.	1449	Tries to decuce the likely region for a map knowing only its path.
1228		1450
1229	=cut	1451	=cut
1230		1452
1231	sub find_by_path($) {	1453	sub find_by_path($) {
1232	my ($path) = @_;	1454	my ($path) = @_;
…		…
1306	my ($self, $merge) = @_;	1528	my ($self, $merge) = @_;
1307		1529
1308	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1309	local $self->{path};	1531	local $self->{path};
1310	local $self->{load_path};	1532	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1533
1314	$self->SUPER::thawer_merge ($merge);	1534	$self->SUPER::thawer_merge ($merge);
1315	}	1535	}
1316		1536
1317	sub normalise {	1537	sub normalise {
…		…
1417		1637
1418	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1419	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
1420	}	1640	}
1421		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
		1648	}
		1649
1422	sub unlink_save {	1650	sub unlink_save {
1423	my ($self) = @_;	1651	my ($self) = @_;
1424		1652
1425	utf8::encode (my $save = $self->save_path);	1653	utf8::encode (my $save = $self->save_path);
1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1482	$self->load_header_orig	1710	$self->load_header_orig
1483	or return;	1711	or return;
1484	$self->prepare_orig;	1712	$self->prepare_orig;
1485	}	1713	}
1486		1714
		1715	$self->{deny_reset} = 1
		1716	if $self->no_reset;
		1717
1487	$self->default_region (cf::region::find_by_path $self->{path})	1718	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	1719	unless $self->default_region;
1489		1720
1490	1	1721	1
1491	}	1722	}
…		…
1506	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1507		1738
1508	$map->load_header	1739	$map->load_header
1509	or return;	1740	or return;
1510		1741
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	1743	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	1744	#$cf::WAIT_FOR_TICK->wait;
1514	$map->reset;	1745	$map->reset;
1515	undef $guard;	1746	undef $guard;
1516	return find $path;	1747	return find $path;
…		…
1583	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1584		1815
1585	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	1817	if $self->per_player;
1587		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
		1821
1588	$self	1822	$self
1589	}	1823	}
1590		1824
1591	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	1826	sub load_diag {
…		…
1702		1936
1703	sub reset_at {	1937	sub reset_at {
1704	my ($self) = @_;	1938	my ($self) = @_;
1705		1939
1706	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1708	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1709		1942
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1712		1945
…		…
1723	my ($self) = @_;	1956	my ($self) = @_;
1724		1957
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		1959
1727	return if $self->players;	1960	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		1961
1730	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
1731		1963
1732	$self->in_memory (cf::MAP_SWAPPED);	1964	$self->in_memory (cf::MAP_SWAPPED);
1733		1965
1734	# need to save uniques path	1966	# need to save uniques path
1735	unless ($self->{deny_save}) {	1967	unless ($self->{deny_save}) {
…		…
1767	$cf::MAP{$self->path} = $self;	1999	$cf::MAP{$self->path} = $self;
1768		2000
1769	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1770	}	2002	}
1771		2003
		2004	=item $maps = cf::map::tmp_maps
		2005
		2006	Returns an arrayref with all map paths of currently instantiated and saved
		2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
		2012	[
		2013	map {
		2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
		2020	}
		2021
		2022	=item $maps = cf::map::random_maps
		2023
		2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
		2026
		2027	=cut
		2028
		2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
		2038	}
		2039
1772	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1773		2041
1774	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2043	instantiated unique items. May block.
1776		2044
1777	=cut	2045	=cut
1778		2046
1779	sub unique_maps() {	2047	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2048	[
1781	or return;	2049	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2050	utf8::decode $_;
1787	next if /\.pst$/;	2051	/\.map$/
1788	next unless /^$PATH_SEP/o;	2052	? normalise $_
1789		2053	: ()
1790	push @paths, cf::map::normalise $_;	2054	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2055	]
1792
1793	\@paths
1794	}	2056	}
1795		2057
1796	package cf;	2058	package cf;
1797		2059
1798	=back	2060	=back
…		…
1844		2106
1845	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1846		2108
1847	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1849	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1852	}	2128	}
1853	}	2129	}
1854		2130
1855	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1856		2132
…		…
2101		2377
2102	utf8::encode $text;	2378	utf8::encode $text;
2103	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2104	}	2380	}
2105		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
2106	=item $client->ext_event ($type, %msg)	2420	=item $client->ext_event ($type, %msg)
2107		2421
2108	Sends an exti event to the client.	2422	Sends an ext event to the client.
2109		2423
2110	=cut	2424	=cut
2111		2425
2112	sub cf::client::ext_event($$%) {	2426	sub cf::client::ext_event($$%) {
2113	my ($self, $type, %msg) = @_;	2427	my ($self, $type, %msg) = @_;
…		…
2120		2434
2121	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
2122	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2123	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2124		2438
2125	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
2126	reliable at some point in the future.	2440	become reliable at some point in the future.
2127		2441
2128	=cut	2442	=cut
2129		2443
2130	sub cf::client::query {	2444	sub cf::client::query {
2131	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
2139	utf8::encode $text;	2453	utf8::encode $text;
2140	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2141		2455
2142	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
2143	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
2144	}	2460	}
2145		2461
2146	cf::client->attach (	2462	cf::client->attach (
2147	on_reply => sub {	2463	on_reply => sub {
2148	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
2162	$ns->send_packet ($ns->{query_queue}[0][0]);	2478	$ns->send_packet ($ns->{query_queue}[0][0]);
2163	} else {	2479	} else {
2164	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2165	}	2481	}
2166	}	2482	}
		2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
2167	},	2501	},
2168	);	2502	);
2169		2503
2170	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
2171		2505
…		…
2310	=back	2644	=back
2311		2645
2312	=cut	2646	=cut
2313		2647
2314	#############################################################################	2648	#############################################################################
2315
2316	=head2 EXTENSION DATABASE SUPPORT
2317
2318	Crossfire maintains a very simple database for extension use. It can
2319	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2320	convert to/from binary).
2321
2322	The parameter C<$family> should best start with the name of the extension
2323	using it, it should be unique.
2324
2325	=over 4
2326
2327	=item $value = cf::db_get $family => $key
2328
2329	Returns a single value from the database.
2330
2331	=item cf::db_put $family => $key => $value
2332
2333	Stores the given C<$value> in the family.
2334
2335	=cut
2336
2337	our $DB;
2338
2339	sub db_init {
2340	unless ($DB) {
2341	$DB = BDB::db_create $DB_ENV;
2342
2343	cf::sync_job {
2344	eval {
2345	$DB->set_flags (BDB::CHKSUM);
2346
2347	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2348	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2349	cf::cleanup "db_open(db): $!" if $!;
2350	};
2351	cf::cleanup "db_open(db): $@" if $@;
2352	};
2353	}
2354	}
2355
2356	sub db_get($$) {
2357	my $key = "$_[0]/$_[1]";
2358
2359	cf::sync_job {
2360	BDB::db_get $DB, undef, $key, my $data;
2361
2362	$! ? ()
2363	: $data
2364	}
2365	}
2366
2367	sub db_put($$$) {
2368	BDB::dbreq_pri 4;
2369	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2370	}
2371
2372	=item cf::cache $id => [$paths...], $processversion => $process
2373
2374	Generic caching function that returns the value of the resource $id,
2375	caching and regenerating as required.
2376
2377	This function can block.
2378
2379	=cut
2380
2381	sub cache {
2382	my ($id, $src, $processversion, $process) = @_;
2383
2384	my $meta =
2385	join "\x00",
2386	$processversion,
2387	map {
2388	aio_stat $_
2389	and Carp::croak "$_: $!";
2390
2391	($_, (stat _)[7,9])
2392	} @$src;
2393
2394	my $dbmeta = db_get cache => "$id/meta";
2395	if ($dbmeta ne $meta) {
2396	# changed, we may need to process
2397
2398	my @data;
2399	my $md5;
2400
2401	for (0 .. $#$src) {
2402	0 <= aio_load $src->[$_], $data[$_]
2403	or Carp::croak "$src->[$_]: $!";
2404	}
2405
2406	# if processing is expensive, check
2407	# checksum first
2408	if (1) {
2409	$md5 =
2410	join "\x00",
2411	$processversion,
2412	map {
2413	Coro::cede;
2414	($src->[$_], Digest::MD5::md5_hex $data[$_])
2415	} 0.. $#$src;
2416
2417
2418	my $dbmd5 = db_get cache => "$id/md5";
2419	if ($dbmd5 eq $md5) {
2420	db_put cache => "$id/meta", $meta;
2421
2422	return db_get cache => "$id/data";
2423	}
2424	}
2425
2426	my $t1 = Time::HiRes::time;
2427	my $data = $process->(\@data);
2428	my $t2 = Time::HiRes::time;
2429
2430	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2431
2432	db_put cache => "$id/data", $data;
2433	db_put cache => "$id/md5" , $md5;
2434	db_put cache => "$id/meta", $meta;
2435
2436	return $data;
2437	}
2438
2439	db_get cache => "$id/data"
2440	}
2441
2442	=item fork_call { }, $args
2443
2444	Executes the given code block with the given arguments in a seperate
2445	process, returning the results. Everything must be serialisable with
2446	Coro::Storable. May, of course, block. Note that the executed sub may
2447	never block itself or use any form of Event handling.
2448
2449	=cut
2450
2451	sub fork_call(&@) {
2452	my ($cb, @args) = @_;
2453
2454	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2455	# or die "socketpair: $!";
2456	pipe my $fh1, my $fh2
2457	or die "pipe: $!";
2458
2459	if (my $pid = fork) {
2460	close $fh2;
2461
2462	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2463	$res = Coro::Storable::thaw $res;
2464
2465	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2466
2467	die $$res unless "ARRAY" eq ref $res;
2468
2469	return wantarray ? @$res : $res->[-1];
2470	} else {
2471	reset_signals;
2472	local $SIG{__WARN__};
2473	local $SIG{__DIE__};
2474	eval {
2475	close $fh1;
2476
2477	my @res = eval { $cb->(@args) };
2478	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2479	};
2480
2481	warn $@ if $@;
2482	_exit 0;
2483	}
2484	}
2485
2486
2487
2488	#############################################################################
2489	# the server's init and main functions	2649	# the server's init and main functions
2490		2650
2491	sub load_facedata($) {	2651	sub load_facedata($) {
2492	my ($path) = @_;	2652	my ($path) = @_;
2493		2653
…		…
2563	sub reload_resources {	2723	sub reload_resources {
2564	warn "reloading resource files...\n";	2724	warn "reloading resource files...\n";
2565		2725
2566	reload_regions;	2726	reload_regions;
2567	reload_facedata;	2727	reload_facedata;
		2728	#reload_archetypes;#d#
2568	reload_archetypes;	2729	reload_archetypes;
2569	reload_treasures;	2730	reload_treasures;
2570		2731
2571	warn "finished reloading resource files\n";	2732	warn "finished reloading resource files\n";
2572	}	2733	}
…		…
2629	},	2790	},
2630	);	2791	);
2631	}	2792	}
2632	}	2793	}
2633		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
		2831	}
		2832
2634	sub emergency_save() {	2833	sub emergency_save() {
2635	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2636		2835
2637	warn "enter emergency perl save\n";	2836	warn "enter emergency perl save\n";
2638		2837
…		…
2713	%EXT_CORO = ();	2912	%EXT_CORO = ();
2714		2913
2715	warn "removing commands";	2914	warn "removing commands";
2716	%COMMAND = ();	2915	%COMMAND = ();
2717		2916
2718	warn "removing ext commands";	2917	warn "removing ext/exti commands";
2719	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2720		2920
2721	warn "unloading/nuking all extensions";	2921	warn "unloading/nuking all extensions";
2722	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2723	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2724		2924

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.270 by root, Sat May 26 15:44:06 2007 UTC vs. Revision 1.287 by root, Mon Jun 25 05:43:45 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.270 by root, Sat May 26 15:44:06 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 2007 UTC