[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 1.303 by root, Wed Jul 11 15:57:31 2007 UTC

…		…
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
24		24
		25	use JSON::XS 1.4 ();
25	use BDB ();	26	use BDB ();
26	use Data::Dumper;	27	use Data::Dumper;
27	use Digest::MD5;	28	use Digest::MD5;
28	use Fcntl;	29	use Fcntl;
29	use YAML::Syck ();	30	use YAML::Syck ();
30	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
31	use Time::HiRes;	32	use Time::HiRes;
32	use Compress::LZF;	33	use Compress::LZF;
		34	use Digest::MD5 ();
33		35
34	# configure various modules to our taste	36	# configure various modules to our taste
35	#	37	#
36	$Storable::canonical = 1; # reduce rsync transfers	38	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
…		…
49	our %COMMAND = ();	51	our %COMMAND = ();
50	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
51		53
52	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
56		59
57	our $RELOAD; # number of reloads so far	60	our $RELOAD; # number of reloads so far
58	our @EVENT;	61	our @EVENT;
…		…
206	}	209	}
207		210
208	$Event::DIED = sub {	211	$Event::DIED = sub {
209	warn "error in event callback: @_";	212	warn "error in event callback: @_";
210	};	213	};
		214
		215	#############################################################################
211		216
212	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
213		218
214	=over 4	219	=over 4
215		220
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	239	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	240	$d
236	} \|\| "[unable to dump $_[0]: '$@']";	241	} \|\| "[unable to dump $_[0]: '$@']";
237	}	242	}
238		243
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
242		245
243	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
244		247
245	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
246		249
247	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 $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		255
		256	sub to_json ($) { $json_coder->encode ($_[0]) }
		257	sub from_json ($) { $json_coder->decode ($_[0]) }
248		258
249	=item cf::lock_wait $string	259	=item cf::lock_wait $string
250		260
251	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
252		262
…		…
318		328
319	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
320		330
321	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
322		332
323	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
324	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
325	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.
326		337
327	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
328	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
329	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
330	fast or be very important.	341	fast or be very important.
…		…
390	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
391		402
392	$coro	403	$coro
393	}	404	}
394		405
395	sub write_runtime {	406	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		407
398	# first touch the runtime file to show we are still running:	408	Executes the given code block with the given arguments in a seperate
399	# 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.
400		412
401	IO::AIO::aio_utime $runtime, undef, undef;	413	=cut
402		414
403	my $guard = cf::lock_acquire "write_runtime";	415	sub _store_scalar {
404		416	open my $fh, ">", \my $buf
405	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	417	or die "fork_call: cannot open fh-to-buf in child : $!";
406	or return;	418	Storable::store_fd $_[0], $fh;
407
408	my $value = $cf::RUNTIME + 90 + 10;
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	419	close $fh;
423	or return;
424		420
425	aio_rename "$runtime~", $runtime	421	$buf
426	and return;	422	}
427		423
428	warn "runtime file written.\n";	424	sub fork_call(&@) {
		425	my ($cb, @args) = @_;
429		426
		427	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		428	# or die "socketpair: $!";
		429	pipe my $fh1, my $fh2
		430	or die "pipe: $!";
		431
		432	if (my $pid = fork) {
		433	close $fh2;
		434
		435	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		436	warn "pst<$res>" unless $res =~ /^pst/;
		437	$res = Coro::Storable::thaw $res;
		438
		439	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		440
		441	Carp::confess $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
430	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		499	my $key = "$_[0]/$_[1]";
		500
		501	cf::sync_job {
		502	BDB::db_get $DB, undef, $key, my $data;
		503
		504	$! ? ()
		505	: $data
		506	}
		507	}
		508
		509	sub db_put($$$) {
		510	BDB::dbreq_pri 4;
		511	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		512	}
		513
		514	=item cf::cache $id => [$paths...], $processversion => $process
		515
		516	Generic caching function that returns the value of the resource $id,
		517	caching and regenerating as required.
		518
		519	This function can block.
		520
		521	=cut
		522
		523	sub cache {
		524	my ($id, $src, $processversion, $process) = @_;
		525
		526	my $meta =
		527	join "\x00",
		528	$processversion,
		529	map {
		530	aio_stat $_
		531	and Carp::croak "$_: $!";
		532
		533	($_, (stat _)[7,9])
		534	} @$src;
		535
		536	my $dbmeta = db_get cache => "$id/meta";
		537	if ($dbmeta ne $meta) {
		538	# changed, we may need to process
		539
		540	my @data;
		541	my $md5;
		542
		543	for (0 .. $#$src) {
		544	0 <= aio_load $src->[$_], $data[$_]
		545	or Carp::croak "$src->[$_]: $!";
		546	}
		547
		548	# if processing is expensive, check
		549	# checksum first
		550	if (1) {
		551	$md5 =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	Coro::cede;
		556	($src->[$_], Digest::MD5::md5_hex $data[$_])
		557	} 0.. $#$src;
		558
		559
		560	my $dbmd5 = db_get cache => "$id/md5";
		561	if ($dbmd5 eq $md5) {
		562	db_put cache => "$id/meta", $meta;
		563
		564	return db_get cache => "$id/data";
		565	}
		566	}
		567
		568	my $t1 = Time::HiRes::time;
		569	my $data = $process->(\@data);
		570	my $t2 = Time::HiRes::time;
		571
		572	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		573
		574	db_put cache => "$id/data", $data;
		575	db_put cache => "$id/md5" , $md5;
		576	db_put cache => "$id/meta", $meta;
		577
		578	return $data;
		579	}
		580
		581	db_get cache => "$id/data"
431	}	582	}
432		583
433	=item cf::datalog type => key => value, ...	584	=item cf::datalog type => key => value, ...
434		585
435	Log a datalog packet of the given type with the given key-value pairs.	586	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")	604	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
455		606
456	In the following description, CLASS can be any of C<global>, C<object>	607	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	608	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	609	Crossfire TRT).
459		610
460	=over 4	611	=over 4
461		612
462	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
463		614
…		…
665	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
666	}	817	}
667		818
668	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
669	} else {	820	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	822	}
672		823
673	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
674	}	825	}
675		826
…		…
877	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av \|\| []};	1029	$filename, length $data, scalar @{$av \|\| []};
879	return ($data, $av);	1030	return ($data, $av);
880	}	1031	}
881		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
		1038
882	#############################################################################	1039	#############################################################################
883	# command handling &c	1040	# command handling &c
884		1041
885	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
886		1043
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1056	}
900		1057
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1059
903	Register a callbackf ro execution when the client sends an extcmd packet.	1060	Register a callback for execution when the client sends an (synchronous)
		1061	extcmd packet. Ext commands will be processed in the order they are
		1062	received by the server, like other user commands. The first argument is
		1063	the logged-in player. Ext commands can only be processed after a player
		1064	has logged in successfully.
904		1065
905	If the callback returns something, it is sent back as if reply was being	1066	If the callback returns something, it is sent back as if reply was being
906	called.	1067	called.
907		1068
		1069	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1070
		1071	Register a callback for execution when the client sends an (asynchronous)
		1072	exticmd packet. Exti commands are processed by the server as soon as they
		1073	are received, i.e. out of order w.r.t. other commands. The first argument
		1074	is a client socket. Exti commands can be received anytime, even before
		1075	log-in.
		1076
		1077	If the callback returns something, it is sent back as if reply was being
		1078	called.
		1079
908	=cut	1080	=cut
909		1081
910	sub register_extcmd {	1082	sub register_extcmd {
911	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
912		1084
913	$EXTCMD{$name} = $cb;	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
914	}	1092	}
915		1093
916	cf::player->attach (	1094	cf::player->attach (
917	on_command => sub {	1095	on_command => sub {
918	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1105	cf::override;
928	},	1106	},
929	on_extcmd => sub {	1107	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
931		1109
932	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1111
934	if (ref $msg) {	1112	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
943		1121
944	cf::override;	1122	cf::override;
945	},	1123	},
946	);	1124	);
947		1125
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 {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
983	for my $ext (<$LIBDIR/*.ext>) {	1130	for my $path (<$LIBDIR/*.ext>) {
984	next unless -r $ext;	1131	next unless -r $path;
985	eval {	1132
986	load_extension $ext;	1133	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1134	my $base = $1;
		1135	my $pkg = $1;
		1136	$pkg =~ s/[^[:word:]]/_/g;
		1137	$pkg = "ext::$pkg";
		1138
		1139	open my $fh, "<:utf8", $path
		1140	or die "$path: $!";
		1141
		1142	my $source = do { local $/; <$fh> };
		1143
		1144	my %ext = (
		1145	path => $path,
		1146	base => $base,
		1147	pkg => $pkg,
		1148	);
		1149
		1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1151	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1152
		1153	$ext{source} =
		1154	"package $pkg; use strict; use utf8;\n"
		1155	. "#line 1 \"$path\"\n{\n"
		1156	. $source
		1157	. "\n};\n1";
		1158
		1159	$todo{$base} = \%ext;
		1160	}
		1161
		1162	my %done;
		1163	while (%todo) {
		1164	my $progress;
		1165
		1166	while (my ($k, $v) = each %todo) {
		1167	for (split /,\s*/, $v->{meta}{depends}) {
		1168	goto skip
		1169	unless exists $done{$_};
		1170	}
		1171
		1172	warn "... loading '$k' into '$v->{pkg}'\n";
		1173
		1174	unless (eval $v->{source}) {
		1175	my $msg = $@ ? "$v->{path}: $@\n"
		1176	: "$v->{base}: extension inactive.\n";
		1177
		1178	if (exists $v->{meta}{mandatory}) {
		1179	warn $msg;
		1180	warn "mandatory extension failed to load, exiting.\n";
		1181	exit 1;
		1182	}
		1183
		1184	warn $msg;
		1185	}
		1186
		1187	$done{$k} = delete $todo{$k};
		1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
987	1	1190	}
988	} or warn "$ext not loaded: $@";	1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
989	}	1196	};
990	}	1197	}
991		1198
992	#############################################################################	1199	#############################################################################
		1200
		1201	=back
993		1202
994	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
995		1204
996	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
997		1206
…		…
1185	}	1394	}
1186		1395
1187	\@paths	1396	\@paths
1188	}	1397	}
1189		1398
		1399	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1400
		1401	Expand crossfire pod fragments into protocol xml.
		1402
		1403	=cut
		1404
		1405	sub expand_cfpod {
		1406	((my $self), (local $_)) = @_;
		1407
		1408	# escape & and <
		1409	s/&/&/g;
		1410	s/(?<![BIUGH])</</g;
		1411
		1412	# this is buggy, it needs to properly take care of nested <'s
		1413
		1414	1 while
		1415	# replace B<>, I<>, U<> etc.
		1416	s/B<([^\>]*)>/<b>$1<\/b>/
		1417	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1418	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1419	# replace G<male\|female> tags
		1420	\|\| s{G<([^>\|])\\|([^>])>}{
		1421	$self->gender ? $2 : $1
		1422	}ge
		1423	# replace H<hint text>
		1424	\|\| s{H<([^\>]*)>}
		1425	{
		1426	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1427	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1428	"")
		1429	[$self->{hintmode}]
		1430	}ge;
		1431
		1432	# create single paragraphs (very hackish)
		1433	s/(?<=\S)\n(?=\w)/ /g;
		1434
		1435	# compress some whitespace
		1436	s/\s+\n/\n/g; # ws line-ends
		1437	s/\n\n+/\n/g; # double lines
		1438	s/^\n+//; # beginning lines
		1439	s/\n+$//; # ending lines
		1440
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
1190	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1191		1450
1192	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1193		1452
1194	=cut	1453	=cut
1195		1454
1196	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1197	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1198		1457
1199	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1200		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1460	}
1203		1461
1204	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1205		1463
1206	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1221		1479
1222	package cf::region;	1480	package cf::region;
1223		1481
1224	=item cf::region::find_by_path $path	1482	=item cf::region::find_by_path $path
1225		1483
1226	Tries to decuce the probable region for a map knowing only its path.	1484	Tries to decuce the likely region for a map knowing only its path.
1227		1485
1228	=cut	1486	=cut
1229		1487
1230	sub find_by_path($) {	1488	sub find_by_path($) {
1231	my ($path) = @_;	1489	my ($path) = @_;
…		…
1779	}	2037	}
1780		2038
1781	=item $maps = cf::map::tmp_maps	2039	=item $maps = cf::map::tmp_maps
1782		2040
1783	Returns an arrayref with all map paths of currently instantiated and saved	2041	Returns an arrayref with all map paths of currently instantiated and saved
1784	maps.	2042	maps. May block.
1785		2043
1786	=cut	2044	=cut
1787		2045
1788	sub tmp_maps() {	2046	sub tmp_maps() {
1789	[	2047	[
1790	map {	2048	map {
1791	utf8::decode $_;	2049	utf8::decode $_;
1792	!/\.(?:pst\|meta)$/ && /^$PATH_SEP/o	2050	/\.map$/
1793	? normalise $_	2051	? normalise $_
1794	: ()	2052	: ()
1795	} @{ aio_readdir $TMPDIR or [] }	2053	} @{ aio_readdir $TMPDIR or [] }
1796	]	2054	]
1797	}	2055	}
1798		2056
		2057	=item $maps = cf::map::random_maps
		2058
		2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
		2061
		2062	=cut
		2063
		2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
1799	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1800		2076
1801	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1802	instantiated unique items. May block.	2078	instantiated unique items. May block.
1803		2079
…		…
1805		2081
1806	sub unique_maps() {	2082	sub unique_maps() {
1807	[	2083	[
1808	map {	2084	map {
1809	utf8::decode $_;	2085	utf8::decode $_;
1810	!/\.(?:pst\|meta)$/ && /^$PATH_SEP/o	2086	/\.map$/
1811	? normalise $_	2087	? normalise $_
1812	: ()	2088	: ()
1813	} @{ aio_readdir $UNIQUEDIR or [] }	2089	} @{ aio_readdir $UNIQUEDIR or [] }
1814	]	2090	]
1815	}	2091	}
…		…
1865		2141
1866	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1867		2143
1868	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1869	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1870	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1871	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1872	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1873	}	2163	}
1874	}	2164	}
1875		2165
1876	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1877		2167
…		…
2086	my $hp = $exit->stats->hp;	2376	my $hp = $exit->stats->hp;
2087	my $sp = $exit->stats->sp;	2377	my $sp = $exit->stats->sp;
2088		2378
2089	$self->enter_link;	2379	$self->enter_link;
2090		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
		2384
2091	(async {	2385	(async {
2092	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
2093	unless (eval {	2387	unless (eval {
2094	$self->goto ($slaying, $hp, $sp);	2388	$self->goto ($slaying, $hp, $sp);
2095		2389
…		…
2122		2416
2123	utf8::encode $text;	2417	utf8::encode $text;
2124	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2125	}	2419	}
2126		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra \|\| length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
2127	=item $client->ext_event ($type, %msg)	2461	=item $client->ext_event ($type, %msg)
2128		2462
2129	Sends an exti event to the client.	2463	Sends an ext event to the client.
2130		2464
2131	=cut	2465	=cut
2132		2466
2133	sub cf::client::ext_event($$%) {	2467	sub cf::client::ext_event($$%) {
2134	my ($self, $type, %msg) = @_;	2468	my ($self, $type, %msg) = @_;
2135		2469
2136	$msg{msgtype} = "event_$type";	2470	$msg{msgtype} = "event_$type";
2137	$self->send_packet ("ext " . cf::to_json \%msg);	2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2138	}	2472	}
2139		2473
2140	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
2141		2475
2142	Queues a query to the client, calling the given callback with	2476	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>,	2477	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>.	2478	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2145		2479
2146	Queries can fail, so check the return code. Or don't, as queries will become	2480	Queries can fail, so check the return code. Or don't, as queries will
2147	reliable at some point in the future.	2481	become reliable at some point in the future.
2148		2482
2149	=cut	2483	=cut
2150		2484
2151	sub cf::client::query {	2485	sub cf::client::query {
2152	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
2160	utf8::encode $text;	2494	utf8::encode $text;
2161	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2162		2496
2163	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
2164	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
2165	}	2501	}
2166		2502
2167	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
2168	on_reply => sub {	2509	on_reply => sub {
2169	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
2170		2511
2171	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
2172	# get handled first	2513	# get handled first
…		…
2184	} else {	2525	} else {
2185	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2186	}	2527	}
2187	}	2528	}
2188	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($ns, $buf) = @_;
		2532
		2533	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2534
		2535	if (ref $msg) {
		2536	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2537	if (my %reply = $cb->($ns, $msg)) {
		2538	$reply{msgid} = $msg->{msgid};
		2539	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2540	}
		2541	}
		2542	} else {
		2543	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2544	}
		2545
		2546	cf::override;
		2547	},
2189	);	2548	);
2190		2549
2191	=item $client->async (\&cb)	2550	=item $client->async (\&cb)
2192		2551
2193	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
…		…
2242		2601
2243	=pod	2602	=pod
2244		2603
2245	The following functions and methods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
2246		2605
2247	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
2248	cf::object::player player	2610	cf::object::player
2249	cf::player peaceful	2611	player
2250	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
2251		2618
2252	=cut	2619	=cut
2253		2620
2254	for (	2621	for (
2255	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
2256	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
2257	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
2258	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
2259	) {	2627	) {
2260	no strict 'refs';	2628	no strict 'refs';
…		…
2331	=back	2699	=back
2332		2700
2333	=cut	2701	=cut
2334		2702
2335	#############################################################################	2703	#############################################################################
2336
2337	=head2 EXTENSION DATABASE SUPPORT
2338
2339	Crossfire maintains a very simple database for extension use. It can
2340	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2341	convert to/from binary).
2342
2343	The parameter C<$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 $@;
2503	_exit 0;
2504	}
2505	}
2506
2507	#############################################################################
2508	# the server's init and main functions	2704	# the server's init and main functions
2509		2705
2510	sub load_facedata($) {	2706	sub load_facedata($) {
2511	my ($path) = @_;	2707	my ($path) = @_;
2512		2708
…		…
2524	{	2720	{
2525	my $faces = $facedata->{faceinfo};	2721	my $faces = $facedata->{faceinfo};
2526		2722
2527	while (my ($face, $info) = each %$faces) {	2723	while (my ($face, $info) = each %$faces) {
2528	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;	2724	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;
2529	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2725	cf::face::set_visibility $idx, $info->{visibility};
		2726	cf::face::set_magicmap $idx, $info->{magicmap};
2530	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2727	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2531	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2728	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2532	Coro::cede;	2729
		2730	cf::cede_to_tick;
2533	}	2731	}
2534		2732
2535	while (my ($face, $info) = each %$faces) {	2733	while (my ($face, $info) = each %$faces) {
2536	next unless $info->{smooth};	2734	next unless $info->{smooth};
2537	my $idx = cf::face::find $face	2735	my $idx = cf::face::find $face
2538	or next;	2736	or next;
2539	if (my $smooth = cf::face::find $info->{smooth}) {	2737	if (my $smooth = cf::face::find $info->{smooth}) {
		2738	cf::face::set_smooth $idx, $smooth;
2540	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2739	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2541	} else {	2740	} else {
2542	warn "smooth face '$info->{smooth}' not found for face '$face'";	2741	warn "smooth face '$info->{smooth}' not found for face '$face'";
2543	}	2742	}
2544	Coro::cede;	2743
		2744	cf::cede_to_tick;
2545	}	2745	}
2546	}	2746	}
2547		2747
2548	{	2748	{
2549	my $anims = $facedata->{animinfo};	2749	my $anims = $facedata->{animinfo};
2550		2750
2551	while (my ($anim, $info) = each %$anims) {	2751	while (my ($anim, $info) = each %$anims) {
2552	cf::anim::set $anim, $info->{frames}, $info->{facings};	2752	cf::anim::set $anim, $info->{frames}, $info->{facings};
2553	Coro::cede;	2753	cf::cede_to_tick;
2554	}	2754	}
2555		2755
2556	cf::anim::invalidate_all; # d'oh	2756	cf::anim::invalidate_all; # d'oh
		2757	}
		2758
		2759	{
		2760	# TODO: for gcfclient pleasure, we should give resources
		2761	# that gcfclient doesn't grok a >10000 face index.
		2762	my $res = $facedata->{resource};
		2763	my $enc = JSON::XS->new->utf8->canonical;
		2764
		2765	while (my ($name, $info) = each %$res) {
		2766	my $meta = $enc->encode ({
		2767	name => $name,
		2768	type => $info->{type},
		2769	copyright => $info->{copyright}, #TODO#
		2770	});
		2771	my $data = pack "(w/a)", $meta, $info->{data};
		2772	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2773
		2774	my $idx = (cf::face::find $name) \|\| cf::face::alloc $name;
		2775	cf::face::set_type $idx, 1;
		2776	cf::face::set_data $idx, 0, $data, $chk;
		2777
		2778	cf::cede_to_tick;
		2779	}
2557	}	2780	}
2558		2781
2559	1	2782	1
2560	}	2783	}
2561		2784
…		…
2568	load_facedata "$DATADIR/facedata"	2791	load_facedata "$DATADIR/facedata"
2569	or die "unable to load facedata\n";	2792	or die "unable to load facedata\n";
2570	}	2793	}
2571		2794
2572	sub reload_archetypes {	2795	sub reload_archetypes {
		2796	load_resource_file "$DATADIR/archetypes"
		2797	or die "unable to load archetypes\n";
		2798	#d# NEED to laod twice to resolve forward references
		2799	# this really needs to be done in an extra post-pass
		2800	# (which needs to be synchronous, so solve it differently)
2573	load_resource_file "$DATADIR/archetypes"	2801	load_resource_file "$DATADIR/archetypes"
2574	or die "unable to load archetypes\n";	2802	or die "unable to load archetypes\n";
2575	}	2803	}
2576		2804
2577	sub reload_treasures {	2805	sub reload_treasures {
…		…
2649	},	2877	},
2650	);	2878	);
2651	}	2879	}
2652	}	2880	}
2653		2881
		2882	sub write_runtime {
		2883	my $runtime = "$LOCALDIR/runtime";
		2884
		2885	# first touch the runtime file to show we are still running:
		2886	# the fsync below can take a very very long time.
		2887
		2888	IO::AIO::aio_utime $runtime, undef, undef;
		2889
		2890	my $guard = cf::lock_acquire "write_runtime";
		2891
		2892	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2893	or return;
		2894
		2895	my $value = $cf::RUNTIME + 90 + 10;
		2896	# 10 is the runtime save interval, for a monotonic clock
		2897	# 60 allows for the watchdog to kill the server.
		2898
		2899	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2900	and return;
		2901
		2902	# always fsync - this file is important
		2903	aio_fsync $fh
		2904	and return;
		2905
		2906	# touch it again to show we are up-to-date
		2907	aio_utime $fh, undef, undef;
		2908
		2909	close $fh
		2910	or return;
		2911
		2912	aio_rename "$runtime~", $runtime
		2913	and return;
		2914
		2915	warn "runtime file written.\n";
		2916
		2917	1
		2918	}
		2919
2654	sub emergency_save() {	2920	sub emergency_save() {
2655	my $freeze_guard = cf::freeze_mainloop;	2921	my $freeze_guard = cf::freeze_mainloop;
2656		2922
2657	warn "enter emergency perl save\n";	2923	warn "enter emergency perl save\n";
2658		2924
…		…
2733	%EXT_CORO = ();	2999	%EXT_CORO = ();
2734		3000
2735	warn "removing commands";	3001	warn "removing commands";
2736	%COMMAND = ();	3002	%COMMAND = ();
2737		3003
2738	warn "removing ext commands";	3004	warn "removing ext/exti commands";
2739	%EXTCMD = ();	3005	%EXTCMD = ();
		3006	%EXTICMD = ();
2740		3007
2741	warn "unloading/nuking all extensions";	3008	warn "unloading/nuking all extensions";
2742	for my $pkg (@EXTS) {	3009	for my $pkg (@EXTS) {
2743	warn "... unloading $pkg";	3010	warn "... unloading $pkg";
2744		3011

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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 1.303 by root, Wed Jul 11 15:57:31 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 1.303 by root, Wed Jul 11 15:57:31 2007 UTC