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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.278 by root, Mon Jun 11 21:38:14 2007 UTC vs.
Revision 1.304 by root, Wed Jul 11 16:55:18 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);
…		…
967	path => $path,	1145	path => $path,
968	base => $base,	1146	base => $base,
969	pkg => $pkg,	1147	pkg => $pkg,
970	);	1148	);
971		1149
972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }	1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
973	if $source =~ /^#!.?perl.?#\s(.)$/;	1151	if $source =~ /\A#!.?perl.?#\s(.)$/m;
974		1152
975	$ext{source} =	1153	$ext{source} =
976	"package $pkg; use strict; use utf8;\n"	1154	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	1155	. "#line 1 \"$path\"\n{\n"
978	. $source	1156	. $source
…		…
984	my %done;	1162	my %done;
985	while (%todo) {	1163	while (%todo) {
986	my $progress;	1164	my $progress;
987		1165
988	while (my ($k, $v) = each %todo) {	1166	while (my ($k, $v) = each %todo) {
989	for (split /,\s*/, $ext{meta}{depends}) {	1167	for (split /,\s*/, $v->{meta}{depends}) {
990	goto skip	1168	goto skip
991	unless exists $done{$_};	1169	unless exists $done{$_};
992	}	1170	}
993		1171
994	warn "... loading '$k' into '$v->{pkg}'\n";	1172	warn "... loading '$k' into '$v->{pkg}'\n";
995		1173
996	unless (eval $v->{source}) {	1174	unless (eval $v->{source}) {
997	my $msg = $@ ? "$v->{path}: $@\n"	1175	my $msg = $@ ? "$v->{path}: $@\n"
998	: "extension disabled.\n";	1176	: "$v->{base}: extension inactive.\n";
999		1177
1000	if (exists $v->{meta}{mandatory}) {	1178	if (exists $v->{meta}{mandatory}) {
1001	warn $msg;	1179	warn $msg;
1002	warn "mandatory extension failed to load, exiting.\n";	1180	warn "mandatory extension failed to load, exiting.\n";
1003	exit 1;	1181	exit 1;
1004	}	1182	}
1005		1183
1006	die $msg;	1184	warn $msg;
1007	}	1185	}
1008		1186
1009	$done{$k} = delete $todo{$k};	1187	$done{$k} = delete $todo{$k};
1010	push @EXTS, $v->{pkg};	1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
1011	}	1190	}
1012		1191
1013	skip:	1192	skip:
1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"	1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1015	unless $progress;	1194	unless $progress;
1016	}	1195	}
1017	};	1196	};
1018	}	1197	}
1019		1198
1020	#############################################################################	1199	#############################################################################
		1200
		1201	=back
1021		1202
1022	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
1023		1204
1024	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
1025		1206
…		…
1213	}	1394	}
1214		1395
1215	\@paths	1396	\@paths
1216	}	1397	}
1217		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
1218	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1219		1450
1220	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1221		1452
1222	=cut	1453	=cut
1223		1454
1224	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1225	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1226		1457
1227	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1228		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1229	$self->send ("ext " . cf::to_json \%msg);
1230	}	1460	}
1231		1461
1232	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1233		1463
1234	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1249		1479
1250	package cf::region;	1480	package cf::region;
1251		1481
1252	=item cf::region::find_by_path $path	1482	=item cf::region::find_by_path $path
1253		1483
1254	Tries to decuce the probable region for a map knowing only its path.	1484	Tries to decuce the likely region for a map knowing only its path.
1255		1485
1256	=cut	1486	=cut
1257		1487
1258	sub find_by_path($) {	1488	sub find_by_path($) {
1259	my ($path) = @_;	1489	my ($path) = @_;
1260		1490
1261	my ($match, $specificity);	1491	my ($match, $specificity);
1262		1492
1263	for my $region (list) {	1493	for my $region (list) {
1264	if ($region->match && $path =~ $region->match) {	1494	if ($region->{match} && $path =~ $region->{match}) {
1265	($match, $specificity) = ($region, $region->specificity)	1495	($match, $specificity) = ($region, $region->specificity)
1266	if $region->specificity > $specificity;	1496	if $region->specificity > $specificity;
1267	}	1497	}
1268	}	1498	}
1269		1499
…		…
1911		2141
1912	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1913		2143
1914	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1915	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1916	} 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 {
1917	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1918	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1919	}	2163	}
1920	}	2164	}
1921		2165
1922	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1923		2167
…		…
2132	my $hp = $exit->stats->hp;	2376	my $hp = $exit->stats->hp;
2133	my $sp = $exit->stats->sp;	2377	my $sp = $exit->stats->sp;
2134		2378
2135	$self->enter_link;	2379	$self->enter_link;
2136		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
2137	(async {	2385	(async {
2138	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
2139	unless (eval {	2387	unless (eval {
2140	$self->goto ($slaying, $hp, $sp);	2388	$self->goto ($slaying, $hp, $sp);
2141		2389
…		…
2168		2416
2169	utf8::encode $text;	2417	utf8::encode $text;
2170	$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);
2171	}	2419	}
2172		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
2173	=item $client->ext_event ($type, %msg)	2461	=item $client->ext_event ($type, %msg)
2174		2462
2175	Sends an exti event to the client.	2463	Sends an ext event to the client.
2176		2464
2177	=cut	2465	=cut
2178		2466
2179	sub cf::client::ext_event($$%) {	2467	sub cf::client::ext_event($$%) {
2180	my ($self, $type, %msg) = @_;	2468	my ($self, $type, %msg) = @_;
2181		2469
2182	$msg{msgtype} = "event_$type";	2470	$msg{msgtype} = "event_$type";
2183	$self->send_packet ("ext " . cf::to_json \%msg);	2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2184	}	2472	}
2185		2473
2186	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
2187		2475
2188	Queues a query to the client, calling the given callback with	2476	Queues a query to the client, calling the given callback with
2189	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>,
2190	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>.
2191		2479
2192	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
2193	reliable at some point in the future.	2481	become reliable at some point in the future.
2194		2482
2195	=cut	2483	=cut
2196		2484
2197	sub cf::client::query {	2485	sub cf::client::query {
2198	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
2206	utf8::encode $text;	2494	utf8::encode $text;
2207	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2208		2496
2209	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
2210	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
2211	}	2501	}
2212		2502
2213	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
2214	on_reply => sub {	2509	on_reply => sub {
2215	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
2216		2511
2217	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
2218	# get handled first	2513	# get handled first
…		…
2230	} else {	2525	} else {
2231	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2232	}	2527	}
2233	}	2528	}
2234	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($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	},
2235	);	2548	);
2236		2549
2237	=item $client->async (\&cb)	2550	=item $client->async (\&cb)
2238		2551
2239	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
…		…
2288		2601
2289	=pod	2602	=pod
2290		2603
2291	The following functions and methods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
2292		2605
2293	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
2294	cf::object::player player	2610	cf::object::player
2295	cf::player peaceful	2611	player
2296	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
2297		2618
2298	=cut	2619	=cut
2299		2620
2300	for (	2621	for (
2301	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
2302	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
2303	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
2304	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
2305	) {	2627	) {
2306	no strict 'refs';	2628	no strict 'refs';
…		…
2377	=back	2699	=back
2378		2700
2379	=cut	2701	=cut
2380		2702
2381	#############################################################################	2703	#############################################################################
2382
2383	=head2 EXTENSION DATABASE SUPPORT
2384
2385	Crossfire maintains a very simple database for extension use. It can
2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2387	convert to/from binary).
2388
2389	The parameter C<$family> should best start with the name of the extension
2390	using it, it should be unique.
2391
2392	=over 4
2393
2394	=item $value = cf::db_get $family => $key
2395
2396	Returns a single value from the database.
2397
2398	=item cf::db_put $family => $key => $value
2399
2400	Stores the given C<$value> in the family.
2401
2402	=cut
2403
2404	our $DB;
2405
2406	sub db_init {
2407	unless ($DB) {
2408	$DB = BDB::db_create $DB_ENV;
2409
2410	cf::sync_job {
2411	eval {
2412	$DB->set_flags (BDB::CHKSUM);
2413
2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2415	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2416	cf::cleanup "db_open(db): $!" if $!;
2417	};
2418	cf::cleanup "db_open(db): $@" if $@;
2419	};
2420	}
2421	}
2422
2423	sub db_get($$) {
2424	my $key = "$_[0]/$_[1]";
2425
2426	cf::sync_job {
2427	BDB::db_get $DB, undef, $key, my $data;
2428
2429	$! ? ()
2430	: $data
2431	}
2432	}
2433
2434	sub db_put($$$) {
2435	BDB::dbreq_pri 4;
2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2437	}
2438
2439	=item cf::cache $id => [$paths...], $processversion => $process
2440
2441	Generic caching function that returns the value of the resource $id,
2442	caching and regenerating as required.
2443
2444	This function can block.
2445
2446	=cut
2447
2448	sub cache {
2449	my ($id, $src, $processversion, $process) = @_;
2450
2451	my $meta =
2452	join "\x00",
2453	$processversion,
2454	map {
2455	aio_stat $_
2456	and Carp::croak "$_: $!";
2457
2458	($_, (stat _)[7,9])
2459	} @$src;
2460
2461	my $dbmeta = db_get cache => "$id/meta";
2462	if ($dbmeta ne $meta) {
2463	# changed, we may need to process
2464
2465	my @data;
2466	my $md5;
2467
2468	for (0 .. $#$src) {
2469	0 <= aio_load $src->[$_], $data[$_]
2470	or Carp::croak "$src->[$_]: $!";
2471	}
2472
2473	# if processing is expensive, check
2474	# checksum first
2475	if (1) {
2476	$md5 =
2477	join "\x00",
2478	$processversion,
2479	map {
2480	Coro::cede;
2481	($src->[$_], Digest::MD5::md5_hex $data[$_])
2482	} 0.. $#$src;
2483
2484
2485	my $dbmd5 = db_get cache => "$id/md5";
2486	if ($dbmd5 eq $md5) {
2487	db_put cache => "$id/meta", $meta;
2488
2489	return db_get cache => "$id/data";
2490	}
2491	}
2492
2493	my $t1 = Time::HiRes::time;
2494	my $data = $process->(\@data);
2495	my $t2 = Time::HiRes::time;
2496
2497	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2498
2499	db_put cache => "$id/data", $data;
2500	db_put cache => "$id/md5" , $md5;
2501	db_put cache => "$id/meta", $meta;
2502
2503	return $data;
2504	}
2505
2506	db_get cache => "$id/data"
2507	}
2508
2509	=item fork_call { }, $args
2510
2511	Executes the given code block with the given arguments in a seperate
2512	process, returning the results. Everything must be serialisable with
2513	Coro::Storable. May, of course, block. Note that the executed sub may
2514	never block itself or use any form of Event handling.
2515
2516	=cut
2517
2518	sub fork_call(&@) {
2519	my ($cb, @args) = @_;
2520
2521	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2522	# or die "socketpair: $!";
2523	pipe my $fh1, my $fh2
2524	or die "pipe: $!";
2525
2526	if (my $pid = fork) {
2527	close $fh2;
2528
2529	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2530	$res = Coro::Storable::thaw $res;
2531
2532	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2533
2534	die $$res unless "ARRAY" eq ref $res;
2535
2536	return wantarray ? @$res : $res->[-1];
2537	} else {
2538	reset_signals;
2539	local $SIG{__WARN__};
2540	local $SIG{__DIE__};
2541	eval {
2542	close $fh1;
2543
2544	my @res = eval { $cb->(@args) };
2545	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2546	};
2547
2548	warn $@ if $@;
2549	_exit 0;
2550	}
2551	}
2552
2553	#############################################################################
2554	# the server's init and main functions	2704	# the server's init and main functions
2555		2705
2556	sub load_facedata($) {	2706	sub load_facedata($) {
2557	my ($path) = @_;	2707	my ($path) = @_;
2558		2708
…		…
2570	{	2720	{
2571	my $faces = $facedata->{faceinfo};	2721	my $faces = $facedata->{faceinfo};
2572		2722
2573	while (my ($face, $info) = each %$faces) {	2723	while (my ($face, $info) = each %$faces) {
2574	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;	2724	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;
2575	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2725	cf::face::set_visibility $idx, $info->{visibility};
		2726	cf::face::set_magicmap $idx, $info->{magicmap};
2576	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2727	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2577	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2728	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2578	Coro::cede;	2729
		2730	cf::cede_to_tick;
2579	}	2731	}
2580		2732
2581	while (my ($face, $info) = each %$faces) {	2733	while (my ($face, $info) = each %$faces) {
2582	next unless $info->{smooth};	2734	next unless $info->{smooth};
2583	my $idx = cf::face::find $face	2735	my $idx = cf::face::find $face
2584	or next;	2736	or next;
2585	if (my $smooth = cf::face::find $info->{smooth}) {	2737	if (my $smooth = cf::face::find $info->{smooth}) {
		2738	cf::face::set_smooth $idx, $smooth;
2586	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2739	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2587	} else {	2740	} else {
2588	warn "smooth face '$info->{smooth}' not found for face '$face'";	2741	warn "smooth face '$info->{smooth}' not found for face '$face'";
2589	}	2742	}
2590	Coro::cede;	2743
		2744	cf::cede_to_tick;
2591	}	2745	}
2592	}	2746	}
2593		2747
2594	{	2748	{
2595	my $anims = $facedata->{animinfo};	2749	my $anims = $facedata->{animinfo};
2596		2750
2597	while (my ($anim, $info) = each %$anims) {	2751	while (my ($anim, $info) = each %$anims) {
2598	cf::anim::set $anim, $info->{frames}, $info->{facings};	2752	cf::anim::set $anim, $info->{frames}, $info->{facings};
2599	Coro::cede;	2753	cf::cede_to_tick;
2600	}	2754	}
2601		2755
2602	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, $chk;
		2777
		2778	cf::cede_to_tick;
		2779	}
2603	}	2780	}
2604		2781
2605	1	2782	1
2606	}	2783	}
2607		2784
2608	sub reload_regions {	2785	sub reload_regions {
2609	load_resource_file "$MAPDIR/regions"	2786	load_resource_file "$MAPDIR/regions"
2610	or die "unable to load regions file\n";	2787	or die "unable to load regions file\n";
		2788
		2789	for (cf::region::list) {
		2790	$_->{match} = qr/$_->{match}/
		2791	if exists $_->{match};
		2792	}
2611	}	2793	}
2612		2794
2613	sub reload_facedata {	2795	sub reload_facedata {
2614	load_facedata "$DATADIR/facedata"	2796	load_facedata "$DATADIR/facedata"
2615	or die "unable to load facedata\n";	2797	or die "unable to load facedata\n";
2616	}	2798	}
2617		2799
2618	sub reload_archetypes {	2800	sub reload_archetypes {
		2801	load_resource_file "$DATADIR/archetypes"
		2802	or die "unable to load archetypes\n";
		2803	#d# NEED to laod twice to resolve forward references
		2804	# this really needs to be done in an extra post-pass
		2805	# (which needs to be synchronous, so solve it differently)
2619	load_resource_file "$DATADIR/archetypes"	2806	load_resource_file "$DATADIR/archetypes"
2620	or die "unable to load archetypes\n";	2807	or die "unable to load archetypes\n";
2621	}	2808	}
2622		2809
2623	sub reload_treasures {	2810	sub reload_treasures {
…		…
2695	},	2882	},
2696	);	2883	);
2697	}	2884	}
2698	}	2885	}
2699		2886
		2887	sub write_runtime {
		2888	my $runtime = "$LOCALDIR/runtime";
		2889
		2890	# first touch the runtime file to show we are still running:
		2891	# the fsync below can take a very very long time.
		2892
		2893	IO::AIO::aio_utime $runtime, undef, undef;
		2894
		2895	my $guard = cf::lock_acquire "write_runtime";
		2896
		2897	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2898	or return;
		2899
		2900	my $value = $cf::RUNTIME + 90 + 10;
		2901	# 10 is the runtime save interval, for a monotonic clock
		2902	# 60 allows for the watchdog to kill the server.
		2903
		2904	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2905	and return;
		2906
		2907	# always fsync - this file is important
		2908	aio_fsync $fh
		2909	and return;
		2910
		2911	# touch it again to show we are up-to-date
		2912	aio_utime $fh, undef, undef;
		2913
		2914	close $fh
		2915	or return;
		2916
		2917	aio_rename "$runtime~", $runtime
		2918	and return;
		2919
		2920	warn "runtime file written.\n";
		2921
		2922	1
		2923	}
		2924
2700	sub emergency_save() {	2925	sub emergency_save() {
2701	my $freeze_guard = cf::freeze_mainloop;	2926	my $freeze_guard = cf::freeze_mainloop;
2702		2927
2703	warn "enter emergency perl save\n";	2928	warn "enter emergency perl save\n";
2704		2929
…		…
2779	%EXT_CORO = ();	3004	%EXT_CORO = ();
2780		3005
2781	warn "removing commands";	3006	warn "removing commands";
2782	%COMMAND = ();	3007	%COMMAND = ();
2783		3008
2784	warn "removing ext commands";	3009	warn "removing ext/exti commands";
2785	%EXTCMD = ();	3010	%EXTCMD = ();
		3011	%EXTICMD = ();
2786		3012
2787	warn "unloading/nuking all extensions";	3013	warn "unloading/nuking all extensions";
2788	for my $pkg (@EXTS) {	3014	for my $pkg (@EXTS) {
2789	warn "... unloading $pkg";	3015	warn "... unloading $pkg";
2790		3016

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.278 by root, Mon Jun 11 21:38:14 2007 UTC vs. Revision 1.304 by root, Wed Jul 11 16:55:18 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.278 by root, Mon Jun 11 21:38:14 2007 UTC vs.
Revision 1.304 by root, Wed Jul 11 16:55:18 2007 UTC