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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.276 by root, Sun Jun 10 04:05:47 2007 UTC vs.
Revision 1.294 by root, Tue Jul 3 06:00:48 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 ();
…		…
49	our %COMMAND = ();	50	our %COMMAND = ();
50	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
51		52
52	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
56		58
57	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
58	our @EVENT;	60	our @EVENT;
…		…
206	}	208	}
207		209
208	$Event::DIED = sub {	210	$Event::DIED = sub {
209	warn "error in event callback: @_";	211	warn "error in event callback: @_";
210	};	212	};
		213
		214	#############################################################################
211		215
212	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
213		217
214	=over 4	218	=over 4
215		219
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	239	$d
236	} \|\| "[unable to dump $_[0]: '$@']";	240	} \|\| "[unable to dump $_[0]: '$@']";
237	}	241	}
238		242
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
242		244
243	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
244		246
245	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
246		248
247	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
		250
		251	=cut
		252
		253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		254
		255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
248		257
249	=item cf::lock_wait $string	258	=item cf::lock_wait $string
250		259
251	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
252		261
…		…
318		327
319	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
320		329
321	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
322		331
323	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
326		336
327	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
330	fast or be very important.	340	fast or be very important.
…		…
390	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
391		401
392	$coro	402	$coro
393	}	403	}
394		404
395	sub write_runtime {	405	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		406
398	# first touch the runtime file to show we are still running:	407	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
400		411
401	IO::AIO::aio_utime $runtime, undef, undef;	412	=cut
402		413
403	my $guard = cf::lock_acquire "write_runtime";	414	sub fork_call(&@) {
		415	my ($cb, @args) = @_;
404		416
405	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
406	or return;	418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
407		421
408	my $value = $cf::RUNTIME + 90 + 10;	422	if (my $pid = fork) {
409	# 10 is the runtime save interval, for a monotonic clock
410	# 60 allows for the watchdog to kill the server.
411
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0
413	and return;
414
415	# always fsync - this file is important
416	aio_fsync $fh
417	and return;
418
419	# touch it again to show we are up-to-date
420	aio_utime $fh, undef, undef;
421
422	close $fh	423	close $fh2;
423	or return;
424		424
425	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
426	and return;	426	$res = Coro::Storable::thaw $res;
427		427
428	warn "runtime file written.\n";	428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
429		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
430	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
431	}	563	}
432		564
433	=item cf::datalog type => key => value, ...	565	=item cf::datalog type => key => value, ...
434		566
435	Log a datalog packet of the given type with the given key-value pairs.	567	Log a datalog packet of the given type with the given key-value pairs.
…		…
453	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
455		587
456	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	590	Crossfire TRT).
459		591
460	=over 4	592	=over 4
461		593
462	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
463		595
…		…
665	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
666	}	798	}
667		799
668	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
669	} else {	801	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	803	}
672		804
673	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
674	}	806	}
675		807
…		…
877	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av \|\| []};	1010	$filename, length $data, scalar @{$av \|\| []};
879	return ($data, $av);	1011	return ($data, $av);
880	}	1012	}
881		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
		1019
882	#############################################################################	1020	#############################################################################
883	# command handling &c	1021	# command handling &c
884		1022
885	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
886		1024
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1037	}
900		1038
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1040
903	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
904		1046
905	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
906	called.	1048	called.
907		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
908	=cut	1061	=cut
909		1062
910	sub register_extcmd {	1063	sub register_extcmd {
911	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
912		1065
913	$EXTCMD{$name} = $cb;	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
914	}	1073	}
915		1074
916	cf::player->attach (	1075	cf::player->attach (
917	on_command => sub {	1076	on_command => sub {
918	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1086	cf::override;
928	},	1087	},
929	on_extcmd => sub {	1088	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
931		1090
932	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1092
934	if (ref $msg) {	1093	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
943		1102
944	cf::override;	1103	cf::override;
945	},	1104	},
946	);	1105	);
947		1106
948	sub load_extension {
949	my ($path) = @_;
950
951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
952	my $base = $1;
953	my $pkg = $1;
954	$pkg =~ s/[^[:word:]]/_/g;
955	$pkg = "ext::$pkg";
956
957	warn "... loading '$path' into '$pkg'\n";
958
959	open my $fh, "<:utf8", $path
960	or die "$path: $!";
961
962	my $source =
963	"package $pkg; use strict; use utf8;\n"
964	. "#line 1 \"$path\"\n{\n"
965	. (do { local $/; <$fh> })
966	. "\n};\n1";
967
968	unless (eval $source) {
969	my $msg = $@ ? "$path: $@\n"
970	: "extension disabled.\n";
971	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
972	warn $@;
973	warn "mandatory extension failed to load, exiting.\n";
974	exit 1;
975	}
976	die $@;
977	}
978
979	push @EXTS, $pkg;
980	}
981
982	sub load_extensions {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
983	for my $ext (<$LIBDIR/*.ext>) {	1111	for my $path (<$LIBDIR/*.ext>) {
984	next unless -r $ext;	1112	next unless -r $path;
985	eval {	1113
986	load_extension $ext;	1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
987	1	1171	}
988	} or warn "$ext not loaded: $@";	1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
989	}	1177	};
990	}	1178	}
991		1179
992	#############################################################################	1180	#############################################################################
		1181
		1182	=back
993		1183
994	=head2 CORE EXTENSIONS	1184	=head2 CORE EXTENSIONS
995		1185
996	Functions and methods that extend core crossfire objects.	1186	Functions and methods that extend core crossfire objects.
997		1187
…		…
1185	}	1375	}
1186		1376
1187	\@paths	1377	\@paths
1188	}	1378	}
1189		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&/g;
		1391	s/(?<![BIUGH])</</g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male\|female> tags
		1401	\|\| s{G<([^>\|])\\|([^>])>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	\|\| s{H<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	1 while s/\s\n\s\n\s*/\n/;
		1418
		1419	s/^\s+//;
		1420	s/\s+$//;
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
1190	=item $player->ext_reply ($msgid, %msg)	1430	=item $player->ext_reply ($msgid, %msg)
1191		1431
1192	Sends an ext reply to the player.	1432	Sends an ext reply to the player.
1193		1433
1194	=cut	1434	=cut
1195		1435
1196	sub ext_reply($$%) {	1436	sub ext_reply($$%) {
1197	my ($self, $id, %msg) = @_;	1437	my ($self, $id, %msg) = @_;
1198		1438
1199	$msg{msgid} = $id;	1439	$msg{msgid} = $id;
1200		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1441	}
1203		1442
1204	=item $player->ext_event ($type, %msg)	1443	=item $player->ext_event ($type, %msg)
1205		1444
1206	Sends an ext event to the client.	1445	Sends an ext event to the client.
…		…
1221		1460
1222	package cf::region;	1461	package cf::region;
1223		1462
1224	=item cf::region::find_by_path $path	1463	=item cf::region::find_by_path $path
1225		1464
1226	Tries to decuce the probable region for a map knowing only its path.	1465	Tries to decuce the likely region for a map knowing only its path.
1227		1466
1228	=cut	1467	=cut
1229		1468
1230	sub find_by_path($) {	1469	sub find_by_path($) {
1231	my ($path) = @_;	1470	my ($path) = @_;
…		…
1779	}	2018	}
1780		2019
1781	=item $maps = cf::map::tmp_maps	2020	=item $maps = cf::map::tmp_maps
1782		2021
1783	Returns an arrayref with all map paths of currently instantiated and saved	2022	Returns an arrayref with all map paths of currently instantiated and saved
1784	maps.	2023	maps. May block.
1785		2024
1786	=cut	2025	=cut
1787		2026
1788	sub tmp_maps() {	2027	sub tmp_maps() {
1789	[	2028	[
1790	map {	2029	map {
1791	utf8::decode $_;	2030	utf8::decode $_;
1792	!/\.(?:pst\|meta)$/ && /^$PATH_SEP/o	2031	/\.map$/
1793	? normalise $_	2032	? normalise $_
1794	: ()	2033	: ()
1795	} @{ aio_readdir $TMPDIR or [] }	2034	} @{ aio_readdir $TMPDIR or [] }
1796	]	2035	]
1797	}	2036	}
1798		2037
		2038	=item $maps = cf::map::random_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
		2042
		2043	=cut
		2044
		2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
		2054	}
		2055
1799	=item cf::map::unique_maps	2056	=item cf::map::unique_maps
1800		2057
1801	Returns an arrayref of paths of all shared maps that have	2058	Returns an arrayref of paths of all shared maps that have
1802	instantiated unique items. May block.	2059	instantiated unique items. May block.
1803		2060
…		…
1805		2062
1806	sub unique_maps() {	2063	sub unique_maps() {
1807	[	2064	[
1808	map {	2065	map {
1809	utf8::decode $_;	2066	utf8::decode $_;
1810	!/\.(?:pst\|meta)$/ && /^$PATH_SEP/o	2067	/\.map$/
1811	? normalise $_	2068	? normalise $_
1812	: ()	2069	: ()
1813	} @{ aio_readdir $UNIQUEDIR or [] }	2070	} @{ aio_readdir $UNIQUEDIR or [] }
1814	]	2071	]
1815	}	2072	}
…		…
1865		2122
1866	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1867		2124
1868	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1869	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1870	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1871	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1872	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1873	}	2144	}
1874	}	2145	}
1875		2146
1876	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1877		2148
…		…
2122		2393
2123	utf8::encode $text;	2394	utf8::encode $text;
2124	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2395	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2125	}	2396	}
2126		2397
		2398	=item $client->send_msg ($color, $type, $msg, [extra...])
		2399
		2400	Send a drawinfo or msg packet to the client, formatting the msg for the
		2401	client if neccessary. C<$type> should be a string identifying the type of
		2402	the message, with C<log> being the default. If C<$color> is negative, suppress
		2403	the message unless the client supports the msg packet.
		2404
		2405	=cut
		2406
		2407	sub cf::client::send_msg {
		2408	my ($self, $color, $type, $msg, @extra) = @_;
		2409
		2410	$msg = $self->pl->expand_cfpod ($msg);
		2411
		2412	return unless @extra \|\| length $msg;
		2413
		2414	if ($self->can_msg) {
		2415	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2416	} else {
		2417	# replace some tags by gcfclient-compatible ones
		2418	for ($msg) {
		2419	1 while
		2420	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2421	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2422	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2423	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2424	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2425	}
		2426
		2427	if ($color >= 0) {
		2428	if (0 && $msg =~ /\[/) {
		2429	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2430	} else {
		2431	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2432	$self->send_packet ("drawinfo $color $msg")
		2433	}
		2434	}
		2435	}
		2436	}
		2437
2127	=item $client->ext_event ($type, %msg)	2438	=item $client->ext_event ($type, %msg)
2128		2439
2129	Sends an exti event to the client.	2440	Sends an ext event to the client.
2130		2441
2131	=cut	2442	=cut
2132		2443
2133	sub cf::client::ext_event($$%) {	2444	sub cf::client::ext_event($$%) {
2134	my ($self, $type, %msg) = @_;	2445	my ($self, $type, %msg) = @_;
2135		2446
2136	$msg{msgtype} = "event_$type";	2447	$msg{msgtype} = "event_$type";
2137	$self->send_packet ("ext " . cf::to_json \%msg);	2448	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2138	}	2449	}
2139		2450
2140	=item $success = $client->query ($flags, "text", \&cb)	2451	=item $success = $client->query ($flags, "text", \&cb)
2141		2452
2142	Queues a query to the client, calling the given callback with	2453	Queues a query to the client, calling the given callback with
2143	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2454	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2144	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2455	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2145		2456
2146	Queries can fail, so check the return code. Or don't, as queries will become	2457	Queries can fail, so check the return code. Or don't, as queries will
2147	reliable at some point in the future.	2458	become reliable at some point in the future.
2148		2459
2149	=cut	2460	=cut
2150		2461
2151	sub cf::client::query {	2462	sub cf::client::query {
2152	my ($self, $flags, $text, $cb) = @_;	2463	my ($self, $flags, $text, $cb) = @_;
…		…
2160	utf8::encode $text;	2471	utf8::encode $text;
2161	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2472	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2162		2473
2163	$self->send_packet ($self->{query_queue}[0][0])	2474	$self->send_packet ($self->{query_queue}[0][0])
2164	if @{ $self->{query_queue} } == 1;	2475	if @{ $self->{query_queue} } == 1;
		2476
		2477	1
2165	}	2478	}
2166		2479
2167	cf::client->attach (	2480	cf::client->attach (
		2481	on_connect => sub {
		2482	my ($ns) = @_;
		2483
		2484	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2485	},
2168	on_reply => sub {	2486	on_reply => sub {
2169	my ($ns, $msg) = @_;	2487	my ($ns, $msg) = @_;
2170		2488
2171	# this weird shuffling is so that direct followup queries	2489	# this weird shuffling is so that direct followup queries
2172	# get handled first	2490	# get handled first
…		…
2183	$ns->send_packet ($ns->{query_queue}[0][0]);	2501	$ns->send_packet ($ns->{query_queue}[0][0]);
2184	} else {	2502	} else {
2185	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2503	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2186	}	2504	}
2187	}	2505	}
		2506	},
		2507	on_exticmd => sub {
		2508	my ($ns, $buf) = @_;
		2509
		2510	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2511
		2512	if (ref $msg) {
		2513	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2514	if (my %reply = $cb->($ns, $msg)) {
		2515	$reply{msgid} = $msg->{msgid};
		2516	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2517	}
		2518	}
		2519	} else {
		2520	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2521	}
		2522
		2523	cf::override;
2188	},	2524	},
2189	);	2525	);
2190		2526
2191	=item $client->async (\&cb)	2527	=item $client->async (\&cb)
2192		2528
…		…
2331	=back	2667	=back
2332		2668
2333	=cut	2669	=cut
2334		2670
2335	#############################################################################	2671	#############################################################################
2336
2337	=head2 EXTENSION DATABASE SUPPORT
2338
2339	Crossfire maintains a very simple database for extension use. It can
2340	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2341	convert to/from binary).
2342
2343	The parameter C<$family> should best start with the name of the extension
2344	using it, it should be unique.
2345
2346	=over 4
2347
2348	=item $value = cf::db_get $family => $key
2349
2350	Returns a single value from the database.
2351
2352	=item cf::db_put $family => $key => $value
2353
2354	Stores the given C<$value> in the family.
2355
2356	=cut
2357
2358	our $DB;
2359
2360	sub db_init {
2361	unless ($DB) {
2362	$DB = BDB::db_create $DB_ENV;
2363
2364	cf::sync_job {
2365	eval {
2366	$DB->set_flags (BDB::CHKSUM);
2367
2368	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2369	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2370	cf::cleanup "db_open(db): $!" if $!;
2371	};
2372	cf::cleanup "db_open(db): $@" if $@;
2373	};
2374	}
2375	}
2376
2377	sub db_get($$) {
2378	my $key = "$_[0]/$_[1]";
2379
2380	cf::sync_job {
2381	BDB::db_get $DB, undef, $key, my $data;
2382
2383	$! ? ()
2384	: $data
2385	}
2386	}
2387
2388	sub db_put($$$) {
2389	BDB::dbreq_pri 4;
2390	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2391	}
2392
2393	=item cf::cache $id => [$paths...], $processversion => $process
2394
2395	Generic caching function that returns the value of the resource $id,
2396	caching and regenerating as required.
2397
2398	This function can block.
2399
2400	=cut
2401
2402	sub cache {
2403	my ($id, $src, $processversion, $process) = @_;
2404
2405	my $meta =
2406	join "\x00",
2407	$processversion,
2408	map {
2409	aio_stat $_
2410	and Carp::croak "$_: $!";
2411
2412	($_, (stat _)[7,9])
2413	} @$src;
2414
2415	my $dbmeta = db_get cache => "$id/meta";
2416	if ($dbmeta ne $meta) {
2417	# changed, we may need to process
2418
2419	my @data;
2420	my $md5;
2421
2422	for (0 .. $#$src) {
2423	0 <= aio_load $src->[$_], $data[$_]
2424	or Carp::croak "$src->[$_]: $!";
2425	}
2426
2427	# if processing is expensive, check
2428	# checksum first
2429	if (1) {
2430	$md5 =
2431	join "\x00",
2432	$processversion,
2433	map {
2434	Coro::cede;
2435	($src->[$_], Digest::MD5::md5_hex $data[$_])
2436	} 0.. $#$src;
2437
2438
2439	my $dbmd5 = db_get cache => "$id/md5";
2440	if ($dbmd5 eq $md5) {
2441	db_put cache => "$id/meta", $meta;
2442
2443	return db_get cache => "$id/data";
2444	}
2445	}
2446
2447	my $t1 = Time::HiRes::time;
2448	my $data = $process->(\@data);
2449	my $t2 = Time::HiRes::time;
2450
2451	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2452
2453	db_put cache => "$id/data", $data;
2454	db_put cache => "$id/md5" , $md5;
2455	db_put cache => "$id/meta", $meta;
2456
2457	return $data;
2458	}
2459
2460	db_get cache => "$id/data"
2461	}
2462
2463	=item fork_call { }, $args
2464
2465	Executes the given code block with the given arguments in a seperate
2466	process, returning the results. Everything must be serialisable with
2467	Coro::Storable. May, of course, block. Note that the executed sub may
2468	never block itself or use any form of Event handling.
2469
2470	=cut
2471
2472	sub fork_call(&@) {
2473	my ($cb, @args) = @_;
2474
2475	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2476	# or die "socketpair: $!";
2477	pipe my $fh1, my $fh2
2478	or die "pipe: $!";
2479
2480	if (my $pid = fork) {
2481	close $fh2;
2482
2483	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2484	$res = Coro::Storable::thaw $res;
2485
2486	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2487
2488	die $$res unless "ARRAY" eq ref $res;
2489
2490	return wantarray ? @$res : $res->[-1];
2491	} else {
2492	reset_signals;
2493	local $SIG{__WARN__};
2494	local $SIG{__DIE__};
2495	eval {
2496	close $fh1;
2497
2498	my @res = eval { $cb->(@args) };
2499	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2500	};
2501
2502	warn $@ if $@;
2503	_exit 0;
2504	}
2505	}
2506
2507	#############################################################################
2508	# the server's init and main functions	2672	# the server's init and main functions
2509		2673
2510	sub load_facedata($) {	2674	sub load_facedata($) {
2511	my ($path) = @_;	2675	my ($path) = @_;
2512		2676
…		…
2568	load_facedata "$DATADIR/facedata"	2732	load_facedata "$DATADIR/facedata"
2569	or die "unable to load facedata\n";	2733	or die "unable to load facedata\n";
2570	}	2734	}
2571		2735
2572	sub reload_archetypes {	2736	sub reload_archetypes {
		2737	load_resource_file "$DATADIR/archetypes"
		2738	or die "unable to load archetypes\n";
		2739	#d# NEED to laod twice to resolve forward references
		2740	# this really needs to be done in an extra post-pass
		2741	# (which needs to be synchronous, so solve it differently)
2573	load_resource_file "$DATADIR/archetypes"	2742	load_resource_file "$DATADIR/archetypes"
2574	or die "unable to load archetypes\n";	2743	or die "unable to load archetypes\n";
2575	}	2744	}
2576		2745
2577	sub reload_treasures {	2746	sub reload_treasures {
…		…
2649	},	2818	},
2650	);	2819	);
2651	}	2820	}
2652	}	2821	}
2653		2822
		2823	sub write_runtime {
		2824	my $runtime = "$LOCALDIR/runtime";
		2825
		2826	# first touch the runtime file to show we are still running:
		2827	# the fsync below can take a very very long time.
		2828
		2829	IO::AIO::aio_utime $runtime, undef, undef;
		2830
		2831	my $guard = cf::lock_acquire "write_runtime";
		2832
		2833	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2834	or return;
		2835
		2836	my $value = $cf::RUNTIME + 90 + 10;
		2837	# 10 is the runtime save interval, for a monotonic clock
		2838	# 60 allows for the watchdog to kill the server.
		2839
		2840	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2841	and return;
		2842
		2843	# always fsync - this file is important
		2844	aio_fsync $fh
		2845	and return;
		2846
		2847	# touch it again to show we are up-to-date
		2848	aio_utime $fh, undef, undef;
		2849
		2850	close $fh
		2851	or return;
		2852
		2853	aio_rename "$runtime~", $runtime
		2854	and return;
		2855
		2856	warn "runtime file written.\n";
		2857
		2858	1
		2859	}
		2860
2654	sub emergency_save() {	2861	sub emergency_save() {
2655	my $freeze_guard = cf::freeze_mainloop;	2862	my $freeze_guard = cf::freeze_mainloop;
2656		2863
2657	warn "enter emergency perl save\n";	2864	warn "enter emergency perl save\n";
2658		2865
…		…
2733	%EXT_CORO = ();	2940	%EXT_CORO = ();
2734		2941
2735	warn "removing commands";	2942	warn "removing commands";
2736	%COMMAND = ();	2943	%COMMAND = ();
2737		2944
2738	warn "removing ext commands";	2945	warn "removing ext/exti commands";
2739	%EXTCMD = ();	2946	%EXTCMD = ();
		2947	%EXTICMD = ();
2740		2948
2741	warn "unloading/nuking all extensions";	2949	warn "unloading/nuking all extensions";
2742	for my $pkg (@EXTS) {	2950	for my $pkg (@EXTS) {
2743	warn "... unloading $pkg";	2951	warn "... unloading $pkg";
2744		2952

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.276 by root, Sun Jun 10 04:05:47 2007 UTC vs. Revision 1.294 by root, Tue Jul 3 06:00:48 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.276 by root, Sun Jun 10 04:05:47 2007 UTC vs.
Revision 1.294 by root, Tue Jul 3 06:00:48 2007 UTC