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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.275 by root, Thu Jun 7 19:12:22 2007 UTC vs.
Revision 1.290 by root, Mon Jul 2 03:15:30 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<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
1190	=item $player->ext_reply ($msgid, %msg)	1413	=item $player->ext_reply ($msgid, %msg)
1191		1414
1192	Sends an ext reply to the player.	1415	Sends an ext reply to the player.
1193		1416
1194	=cut	1417	=cut
1195		1418
1196	sub ext_reply($$%) {	1419	sub ext_reply($$%) {
1197	my ($self, $id, %msg) = @_;	1420	my ($self, $id, %msg) = @_;
1198		1421
1199	$msg{msgid} = $id;	1422	$msg{msgid} = $id;
1200		1423	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1424	}
1203		1425
1204	=item $player->ext_event ($type, %msg)	1426	=item $player->ext_event ($type, %msg)
1205		1427
1206	Sends an ext event to the client.	1428	Sends an ext event to the client.
…		…
1221		1443
1222	package cf::region;	1444	package cf::region;
1223		1445
1224	=item cf::region::find_by_path $path	1446	=item cf::region::find_by_path $path
1225		1447
1226	Tries to decuce the probable region for a map knowing only its path.	1448	Tries to decuce the likely region for a map knowing only its path.
1227		1449
1228	=cut	1450	=cut
1229		1451
1230	sub find_by_path($) {	1452	sub find_by_path($) {
1231	my ($path) = @_;	1453	my ($path) = @_;
…		…
1776	$cf::MAP{$self->path} = $self;	1998	$cf::MAP{$self->path} = $self;
1777		1999
1778	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1779	}	2001	}
1780		2002
		2003	=item $maps = cf::map::tmp_maps
		2004
		2005	Returns an arrayref with all map paths of currently instantiated and saved
		2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
		2011	[
		2012	map {
		2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
		2019	}
		2020
		2021	=item $maps = cf::map::random_maps
		2022
		2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
		2025
		2026	=cut
		2027
		2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
1781	=item cf::map::unique_maps	2039	=item cf::map::unique_maps
1782		2040
1783	Returns an arrayref of paths of all shared maps that have	2041	Returns an arrayref of paths of all shared maps that have
1784	instantiated unique items. May block.	2042	instantiated unique items. May block.
1785		2043
1786	=cut	2044	=cut
1787		2045
1788	sub unique_maps() {	2046	sub unique_maps() {
1789	my $files = aio_readdir $UNIQUEDIR	2047	[
1790	or return;	2048	map {
1791
1792	my @paths;
1793
1794	for (@$files) {
1795	utf8::decode $_;	2049	utf8::decode $_;
1796	next if /\.pst$/;	2050	/\.map$/
1797	next unless /^$PATH_SEP/o;	2051	? normalise $_
1798		2052	: ()
1799	push @paths, cf::map::normalise $_;	2053	} @{ aio_readdir $UNIQUEDIR or [] }
1800	}	2054	]
1801
1802	\@paths
1803	}	2055	}
1804		2056
1805	package cf;	2057	package cf;
1806		2058
1807	=back	2059	=back
…		…
1853		2105
1854	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1855		2107
1856	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1857	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1858	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1859	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1860	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1861	}	2127	}
1862	}	2128	}
1863		2129
1864	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1865		2131
…		…
2110		2376
2111	utf8::encode $text;	2377	utf8::encode $text;
2112	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2113	}	2379	}
2114		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
2115	=item $client->ext_event ($type, %msg)	2419	=item $client->ext_event ($type, %msg)
2116		2420
2117	Sends an exti event to the client.	2421	Sends an ext event to the client.
2118		2422
2119	=cut	2423	=cut
2120		2424
2121	sub cf::client::ext_event($$%) {	2425	sub cf::client::ext_event($$%) {
2122	my ($self, $type, %msg) = @_;	2426	my ($self, $type, %msg) = @_;
2123		2427
2124	$msg{msgtype} = "event_$type";	2428	$msg{msgtype} = "event_$type";
2125	$self->send_packet ("ext " . cf::to_json \%msg);	2429	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2126	}	2430	}
2127		2431
2128	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
2129		2433
2130	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
2131	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2132	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2133		2437
2134	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
2135	reliable at some point in the future.	2439	become reliable at some point in the future.
2136		2440
2137	=cut	2441	=cut
2138		2442
2139	sub cf::client::query {	2443	sub cf::client::query {
2140	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
2148	utf8::encode $text;	2452	utf8::encode $text;
2149	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2150		2454
2151	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
2152	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
2153	}	2459	}
2154		2460
2155	cf::client->attach (	2461	cf::client->attach (
		2462	on_connect => sub {
		2463	my ($ns) = @_;
		2464
		2465	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2466	},
2156	on_reply => sub {	2467	on_reply => sub {
2157	my ($ns, $msg) = @_;	2468	my ($ns, $msg) = @_;
2158		2469
2159	# this weird shuffling is so that direct followup queries	2470	# this weird shuffling is so that direct followup queries
2160	# get handled first	2471	# get handled first
…		…
2171	$ns->send_packet ($ns->{query_queue}[0][0]);	2482	$ns->send_packet ($ns->{query_queue}[0][0]);
2172	} else {	2483	} else {
2173	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2484	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2174	}	2485	}
2175	}	2486	}
		2487	},
		2488	on_exticmd => sub {
		2489	my ($ns, $buf) = @_;
		2490
		2491	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2492
		2493	if (ref $msg) {
		2494	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2495	if (my %reply = $cb->($ns, $msg)) {
		2496	$reply{msgid} = $msg->{msgid};
		2497	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2498	}
		2499	}
		2500	} else {
		2501	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2502	}
		2503
		2504	cf::override;
2176	},	2505	},
2177	);	2506	);
2178		2507
2179	=item $client->async (\&cb)	2508	=item $client->async (\&cb)
2180		2509
…		…
2319	=back	2648	=back
2320		2649
2321	=cut	2650	=cut
2322		2651
2323	#############################################################################	2652	#############################################################################
2324
2325	=head2 EXTENSION DATABASE SUPPORT
2326
2327	Crossfire maintains a very simple database for extension use. It can
2328	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2329	convert to/from binary).
2330
2331	The parameter C<$family> should best start with the name of the extension
2332	using it, it should be unique.
2333
2334	=over 4
2335
2336	=item $value = cf::db_get $family => $key
2337
2338	Returns a single value from the database.
2339
2340	=item cf::db_put $family => $key => $value
2341
2342	Stores the given C<$value> in the family.
2343
2344	=cut
2345
2346	our $DB;
2347
2348	sub db_init {
2349	unless ($DB) {
2350	$DB = BDB::db_create $DB_ENV;
2351
2352	cf::sync_job {
2353	eval {
2354	$DB->set_flags (BDB::CHKSUM);
2355
2356	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2357	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2358	cf::cleanup "db_open(db): $!" if $!;
2359	};
2360	cf::cleanup "db_open(db): $@" if $@;
2361	};
2362	}
2363	}
2364
2365	sub db_get($$) {
2366	my $key = "$_[0]/$_[1]";
2367
2368	cf::sync_job {
2369	BDB::db_get $DB, undef, $key, my $data;
2370
2371	$! ? ()
2372	: $data
2373	}
2374	}
2375
2376	sub db_put($$$) {
2377	BDB::dbreq_pri 4;
2378	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2379	}
2380
2381	=item cf::cache $id => [$paths...], $processversion => $process
2382
2383	Generic caching function that returns the value of the resource $id,
2384	caching and regenerating as required.
2385
2386	This function can block.
2387
2388	=cut
2389
2390	sub cache {
2391	my ($id, $src, $processversion, $process) = @_;
2392
2393	my $meta =
2394	join "\x00",
2395	$processversion,
2396	map {
2397	aio_stat $_
2398	and Carp::croak "$_: $!";
2399
2400	($_, (stat _)[7,9])
2401	} @$src;
2402
2403	my $dbmeta = db_get cache => "$id/meta";
2404	if ($dbmeta ne $meta) {
2405	# changed, we may need to process
2406
2407	my @data;
2408	my $md5;
2409
2410	for (0 .. $#$src) {
2411	0 <= aio_load $src->[$_], $data[$_]
2412	or Carp::croak "$src->[$_]: $!";
2413	}
2414
2415	# if processing is expensive, check
2416	# checksum first
2417	if (1) {
2418	$md5 =
2419	join "\x00",
2420	$processversion,
2421	map {
2422	Coro::cede;
2423	($src->[$_], Digest::MD5::md5_hex $data[$_])
2424	} 0.. $#$src;
2425
2426
2427	my $dbmd5 = db_get cache => "$id/md5";
2428	if ($dbmd5 eq $md5) {
2429	db_put cache => "$id/meta", $meta;
2430
2431	return db_get cache => "$id/data";
2432	}
2433	}
2434
2435	my $t1 = Time::HiRes::time;
2436	my $data = $process->(\@data);
2437	my $t2 = Time::HiRes::time;
2438
2439	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2440
2441	db_put cache => "$id/data", $data;
2442	db_put cache => "$id/md5" , $md5;
2443	db_put cache => "$id/meta", $meta;
2444
2445	return $data;
2446	}
2447
2448	db_get cache => "$id/data"
2449	}
2450
2451	=item fork_call { }, $args
2452
2453	Executes the given code block with the given arguments in a seperate
2454	process, returning the results. Everything must be serialisable with
2455	Coro::Storable. May, of course, block. Note that the executed sub may
2456	never block itself or use any form of Event handling.
2457
2458	=cut
2459
2460	sub fork_call(&@) {
2461	my ($cb, @args) = @_;
2462
2463	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2464	# or die "socketpair: $!";
2465	pipe my $fh1, my $fh2
2466	or die "pipe: $!";
2467
2468	if (my $pid = fork) {
2469	close $fh2;
2470
2471	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2472	$res = Coro::Storable::thaw $res;
2473
2474	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2475
2476	die $$res unless "ARRAY" eq ref $res;
2477
2478	return wantarray ? @$res : $res->[-1];
2479	} else {
2480	reset_signals;
2481	local $SIG{__WARN__};
2482	local $SIG{__DIE__};
2483	eval {
2484	close $fh1;
2485
2486	my @res = eval { $cb->(@args) };
2487	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2488	};
2489
2490	warn $@ if $@;
2491	_exit 0;
2492	}
2493	}
2494
2495	#############################################################################
2496	# the server's init and main functions	2653	# the server's init and main functions
2497		2654
2498	sub load_facedata($) {	2655	sub load_facedata($) {
2499	my ($path) = @_;	2656	my ($path) = @_;
2500		2657
…		…
2556	load_facedata "$DATADIR/facedata"	2713	load_facedata "$DATADIR/facedata"
2557	or die "unable to load facedata\n";	2714	or die "unable to load facedata\n";
2558	}	2715	}
2559		2716
2560	sub reload_archetypes {	2717	sub reload_archetypes {
		2718	load_resource_file "$DATADIR/archetypes"
		2719	or die "unable to load archetypes\n";
		2720	#d# NEED to laod twice to resolve forward references
		2721	# this really needs to be done in an extra post-pass
		2722	# (which needs to be synchronous, so solve it differently)
2561	load_resource_file "$DATADIR/archetypes"	2723	load_resource_file "$DATADIR/archetypes"
2562	or die "unable to load archetypes\n";	2724	or die "unable to load archetypes\n";
2563	}	2725	}
2564		2726
2565	sub reload_treasures {	2727	sub reload_treasures {
…		…
2637	},	2799	},
2638	);	2800	);
2639	}	2801	}
2640	}	2802	}
2641		2803
		2804	sub write_runtime {
		2805	my $runtime = "$LOCALDIR/runtime";
		2806
		2807	# first touch the runtime file to show we are still running:
		2808	# the fsync below can take a very very long time.
		2809
		2810	IO::AIO::aio_utime $runtime, undef, undef;
		2811
		2812	my $guard = cf::lock_acquire "write_runtime";
		2813
		2814	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2815	or return;
		2816
		2817	my $value = $cf::RUNTIME + 90 + 10;
		2818	# 10 is the runtime save interval, for a monotonic clock
		2819	# 60 allows for the watchdog to kill the server.
		2820
		2821	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2822	and return;
		2823
		2824	# always fsync - this file is important
		2825	aio_fsync $fh
		2826	and return;
		2827
		2828	# touch it again to show we are up-to-date
		2829	aio_utime $fh, undef, undef;
		2830
		2831	close $fh
		2832	or return;
		2833
		2834	aio_rename "$runtime~", $runtime
		2835	and return;
		2836
		2837	warn "runtime file written.\n";
		2838
		2839	1
		2840	}
		2841
2642	sub emergency_save() {	2842	sub emergency_save() {
2643	my $freeze_guard = cf::freeze_mainloop;	2843	my $freeze_guard = cf::freeze_mainloop;
2644		2844
2645	warn "enter emergency perl save\n";	2845	warn "enter emergency perl save\n";
2646		2846
…		…
2721	%EXT_CORO = ();	2921	%EXT_CORO = ();
2722		2922
2723	warn "removing commands";	2923	warn "removing commands";
2724	%COMMAND = ();	2924	%COMMAND = ();
2725		2925
2726	warn "removing ext commands";	2926	warn "removing ext/exti commands";
2727	%EXTCMD = ();	2927	%EXTCMD = ();
		2928	%EXTICMD = ();
2728		2929
2729	warn "unloading/nuking all extensions";	2930	warn "unloading/nuking all extensions";
2730	for my $pkg (@EXTS) {	2931	for my $pkg (@EXTS) {
2731	warn "... unloading $pkg";	2932	warn "... unloading $pkg";
2732		2933

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.275 by root, Thu Jun 7 19:12:22 2007 UTC vs. Revision 1.290 by root, Mon Jul 2 03:15:30 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.275 by root, Thu Jun 7 19:12:22 2007 UTC vs.
Revision 1.290 by root, Mon Jul 2 03:15:30 2007 UTC