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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.279 by root, Mon Jun 11 22:16:53 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);
…		…
1018	};	1196	};
1019	}	1197	}
1020		1198
1021	#############################################################################	1199	#############################################################################
1022		1200
		1201	=back
		1202
1023	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
1024		1204
1025	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
1026		1206
1027	=cut	1207	=cut
…		…
1214	}	1394	}
1215		1395
1216	\@paths	1396	\@paths
1217	}	1397	}
1218		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
1219	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1220		1450
1221	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1222		1452
1223	=cut	1453	=cut
1224		1454
1225	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1226	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1227		1457
1228	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1229		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1230	$self->send ("ext " . cf::to_json \%msg);
1231	}	1460	}
1232		1461
1233	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1234		1463
1235	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1250		1479
1251	package cf::region;	1480	package cf::region;
1252		1481
1253	=item cf::region::find_by_path $path	1482	=item cf::region::find_by_path $path
1254		1483
1255	Tries to decuce the probable region for a map knowing only its path.	1484	Tries to decuce the likely region for a map knowing only its path.
1256		1485
1257	=cut	1486	=cut
1258		1487
1259	sub find_by_path($) {	1488	sub find_by_path($) {
1260	my ($path) = @_;	1489	my ($path) = @_;
…		…
1912		2141
1913	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1914		2143
1915	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1916	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1917	} 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 {
1918	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1919	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1920	}	2163	}
1921	}	2164	}
1922		2165
1923	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1924		2167
…		…
2133	my $hp = $exit->stats->hp;	2376	my $hp = $exit->stats->hp;
2134	my $sp = $exit->stats->sp;	2377	my $sp = $exit->stats->sp;
2135		2378
2136	$self->enter_link;	2379	$self->enter_link;
2137		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
2138	(async {	2385	(async {
2139	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
2140	unless (eval {	2387	unless (eval {
2141	$self->goto ($slaying, $hp, $sp);	2388	$self->goto ($slaying, $hp, $sp);
2142		2389
…		…
2169		2416
2170	utf8::encode $text;	2417	utf8::encode $text;
2171	$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);
2172	}	2419	}
2173		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
2174	=item $client->ext_event ($type, %msg)	2461	=item $client->ext_event ($type, %msg)
2175		2462
2176	Sends an exti event to the client.	2463	Sends an ext event to the client.
2177		2464
2178	=cut	2465	=cut
2179		2466
2180	sub cf::client::ext_event($$%) {	2467	sub cf::client::ext_event($$%) {
2181	my ($self, $type, %msg) = @_;	2468	my ($self, $type, %msg) = @_;
2182		2469
2183	$msg{msgtype} = "event_$type";	2470	$msg{msgtype} = "event_$type";
2184	$self->send_packet ("ext " . cf::to_json \%msg);	2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2185	}	2472	}
2186		2473
2187	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
2188		2475
2189	Queues a query to the client, calling the given callback with	2476	Queues a query to the client, calling the given callback with
2190	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>,
2191	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>.
2192		2479
2193	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
2194	reliable at some point in the future.	2481	become reliable at some point in the future.
2195		2482
2196	=cut	2483	=cut
2197		2484
2198	sub cf::client::query {	2485	sub cf::client::query {
2199	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
2207	utf8::encode $text;	2494	utf8::encode $text;
2208	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2209		2496
2210	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
2211	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
2212	}	2501	}
2213		2502
2214	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
2215	on_reply => sub {	2509	on_reply => sub {
2216	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
2217		2511
2218	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
2219	# get handled first	2513	# get handled first
…		…
2231	} else {	2525	} else {
2232	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2233	}	2527	}
2234	}	2528	}
2235	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($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	},
2236	);	2548	);
2237		2549
2238	=item $client->async (\&cb)	2550	=item $client->async (\&cb)
2239		2551
2240	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
…		…
2289		2601
2290	=pod	2602	=pod
2291		2603
2292	The following functions and methods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
2293		2605
2294	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
2295	cf::object::player player	2610	cf::object::player
2296	cf::player peaceful	2611	player
2297	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
2298		2618
2299	=cut	2619	=cut
2300		2620
2301	for (	2621	for (
2302	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
2303	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
2304	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
2305	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
2306	) {	2627	) {
2307	no strict 'refs';	2628	no strict 'refs';
…		…
2378	=back	2699	=back
2379		2700
2380	=cut	2701	=cut
2381		2702
2382	#############################################################################	2703	#############################################################################
2383
2384	=head2 EXTENSION DATABASE SUPPORT
2385
2386	Crossfire maintains a very simple database for extension use. It can
2387	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2388	convert to/from binary).
2389
2390	The parameter C<$family> should best start with the name of the extension
2391	using it, it should be unique.
2392
2393	=over 4
2394
2395	=item $value = cf::db_get $family => $key
2396
2397	Returns a single value from the database.
2398
2399	=item cf::db_put $family => $key => $value
2400
2401	Stores the given C<$value> in the family.
2402
2403	=cut
2404
2405	our $DB;
2406
2407	sub db_init {
2408	unless ($DB) {
2409	$DB = BDB::db_create $DB_ENV;
2410
2411	cf::sync_job {
2412	eval {
2413	$DB->set_flags (BDB::CHKSUM);
2414
2415	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2416	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2417	cf::cleanup "db_open(db): $!" if $!;
2418	};
2419	cf::cleanup "db_open(db): $@" if $@;
2420	};
2421	}
2422	}
2423
2424	sub db_get($$) {
2425	my $key = "$_[0]/$_[1]";
2426
2427	cf::sync_job {
2428	BDB::db_get $DB, undef, $key, my $data;
2429
2430	$! ? ()
2431	: $data
2432	}
2433	}
2434
2435	sub db_put($$$) {
2436	BDB::dbreq_pri 4;
2437	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2438	}
2439
2440	=item cf::cache $id => [$paths...], $processversion => $process
2441
2442	Generic caching function that returns the value of the resource $id,
2443	caching and regenerating as required.
2444
2445	This function can block.
2446
2447	=cut
2448
2449	sub cache {
2450	my ($id, $src, $processversion, $process) = @_;
2451
2452	my $meta =
2453	join "\x00",
2454	$processversion,
2455	map {
2456	aio_stat $_
2457	and Carp::croak "$_: $!";
2458
2459	($_, (stat _)[7,9])
2460	} @$src;
2461
2462	my $dbmeta = db_get cache => "$id/meta";
2463	if ($dbmeta ne $meta) {
2464	# changed, we may need to process
2465
2466	my @data;
2467	my $md5;
2468
2469	for (0 .. $#$src) {
2470	0 <= aio_load $src->[$_], $data[$_]
2471	or Carp::croak "$src->[$_]: $!";
2472	}
2473
2474	# if processing is expensive, check
2475	# checksum first
2476	if (1) {
2477	$md5 =
2478	join "\x00",
2479	$processversion,
2480	map {
2481	Coro::cede;
2482	($src->[$_], Digest::MD5::md5_hex $data[$_])
2483	} 0.. $#$src;
2484
2485
2486	my $dbmd5 = db_get cache => "$id/md5";
2487	if ($dbmd5 eq $md5) {
2488	db_put cache => "$id/meta", $meta;
2489
2490	return db_get cache => "$id/data";
2491	}
2492	}
2493
2494	my $t1 = Time::HiRes::time;
2495	my $data = $process->(\@data);
2496	my $t2 = Time::HiRes::time;
2497
2498	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2499
2500	db_put cache => "$id/data", $data;
2501	db_put cache => "$id/md5" , $md5;
2502	db_put cache => "$id/meta", $meta;
2503
2504	return $data;
2505	}
2506
2507	db_get cache => "$id/data"
2508	}
2509
2510	=item fork_call { }, $args
2511
2512	Executes the given code block with the given arguments in a seperate
2513	process, returning the results. Everything must be serialisable with
2514	Coro::Storable. May, of course, block. Note that the executed sub may
2515	never block itself or use any form of Event handling.
2516
2517	=cut
2518
2519	sub fork_call(&@) {
2520	my ($cb, @args) = @_;
2521
2522	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2523	# or die "socketpair: $!";
2524	pipe my $fh1, my $fh2
2525	or die "pipe: $!";
2526
2527	if (my $pid = fork) {
2528	close $fh2;
2529
2530	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2531	$res = Coro::Storable::thaw $res;
2532
2533	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2534
2535	die $$res unless "ARRAY" eq ref $res;
2536
2537	return wantarray ? @$res : $res->[-1];
2538	} else {
2539	reset_signals;
2540	local $SIG{__WARN__};
2541	local $SIG{__DIE__};
2542	eval {
2543	close $fh1;
2544
2545	my @res = eval { $cb->(@args) };
2546	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2547	};
2548
2549	warn $@ if $@;
2550	_exit 0;
2551	}
2552	}
2553
2554	#############################################################################
2555	# the server's init and main functions	2704	# the server's init and main functions
2556		2705
2557	sub load_facedata($) {	2706	sub load_facedata($) {
2558	my ($path) = @_;	2707	my ($path) = @_;
2559		2708
…		…
2571	{	2720	{
2572	my $faces = $facedata->{faceinfo};	2721	my $faces = $facedata->{faceinfo};
2573		2722
2574	while (my ($face, $info) = each %$faces) {	2723	while (my ($face, $info) = each %$faces) {
2575	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;	2724	my $idx = (cf::face::find $face) \|\| cf::face::alloc $face;
2576	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	2725	cf::face::set_visibility $idx, $info->{visibility};
		2726	cf::face::set_magicmap $idx, $info->{magicmap};
2577	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	2727	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2578	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	2728	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2579	Coro::cede;	2729
		2730	cf::cede_to_tick;
2580	}	2731	}
2581		2732
2582	while (my ($face, $info) = each %$faces) {	2733	while (my ($face, $info) = each %$faces) {
2583	next unless $info->{smooth};	2734	next unless $info->{smooth};
2584	my $idx = cf::face::find $face	2735	my $idx = cf::face::find $face
2585	or next;	2736	or next;
2586	if (my $smooth = cf::face::find $info->{smooth}) {	2737	if (my $smooth = cf::face::find $info->{smooth}) {
		2738	cf::face::set_smooth $idx, $smooth;
2587	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	2739	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2588	} else {	2740	} else {
2589	warn "smooth face '$info->{smooth}' not found for face '$face'";	2741	warn "smooth face '$info->{smooth}' not found for face '$face'";
2590	}	2742	}
2591	Coro::cede;	2743
		2744	cf::cede_to_tick;
2592	}	2745	}
2593	}	2746	}
2594		2747
2595	{	2748	{
2596	my $anims = $facedata->{animinfo};	2749	my $anims = $facedata->{animinfo};
2597		2750
2598	while (my ($anim, $info) = each %$anims) {	2751	while (my ($anim, $info) = each %$anims) {
2599	cf::anim::set $anim, $info->{frames}, $info->{facings};	2752	cf::anim::set $anim, $info->{frames}, $info->{facings};
2600	Coro::cede;	2753	cf::cede_to_tick;
2601	}	2754	}
2602		2755
2603	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, $chk;
		2777
		2778	cf::cede_to_tick;
		2779	}
2604	}	2780	}
2605		2781
2606	1	2782	1
2607	}	2783	}
2608		2784
…		…
2615	load_facedata "$DATADIR/facedata"	2791	load_facedata "$DATADIR/facedata"
2616	or die "unable to load facedata\n";	2792	or die "unable to load facedata\n";
2617	}	2793	}
2618		2794
2619	sub reload_archetypes {	2795	sub reload_archetypes {
		2796	load_resource_file "$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)
2620	load_resource_file "$DATADIR/archetypes"	2801	load_resource_file "$DATADIR/archetypes"
2621	or die "unable to load archetypes\n";	2802	or die "unable to load archetypes\n";
2622	}	2803	}
2623		2804
2624	sub reload_treasures {	2805	sub reload_treasures {
…		…
2696	},	2877	},
2697	);	2878	);
2698	}	2879	}
2699	}	2880	}
2700		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
2701	sub emergency_save() {	2920	sub emergency_save() {
2702	my $freeze_guard = cf::freeze_mainloop;	2921	my $freeze_guard = cf::freeze_mainloop;
2703		2922
2704	warn "enter emergency perl save\n";	2923	warn "enter emergency perl save\n";
2705		2924
…		…
2780	%EXT_CORO = ();	2999	%EXT_CORO = ();
2781		3000
2782	warn "removing commands";	3001	warn "removing commands";
2783	%COMMAND = ();	3002	%COMMAND = ();
2784		3003
2785	warn "removing ext commands";	3004	warn "removing ext/exti commands";
2786	%EXTCMD = ();	3005	%EXTCMD = ();
		3006	%EXTICMD = ();
2787		3007
2788	warn "unloading/nuking all extensions";	3008	warn "unloading/nuking all extensions";
2789	for my $pkg (@EXTS) {	3009	for my $pkg (@EXTS) {
2790	warn "... unloading $pkg";	3010	warn "... unloading $pkg";
2791		3011

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.279 by root, Mon Jun 11 22:16:53 2007 UTC vs. Revision 1.303 by root, Wed Jul 11 15:57:31 2007 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.279 by root, Mon Jun 11 22:16:53 2007 UTC vs.
Revision 1.303 by root, Wed Jul 11 15:57:31 2007 UTC