[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 1.300 by root, Tue Jul 10 06:44:29 2007 UTC

…		…
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
24		24
		25	use JSON::XS 1.4 ();
25	use BDB ();	26	use BDB ();
26	use Data::Dumper;	27	use Data::Dumper;
27	use Digest::MD5;	28	use Digest::MD5;
28	use Fcntl;	29	use Fcntl;
29	use YAML::Syck ();	30	use YAML::Syck ();
…		…
49	our %COMMAND = ();	50	our %COMMAND = ();
50	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
51		52
52	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
56		58
57	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
58	our @EVENT;	60	our @EVENT;
…		…
206	}	208	}
207		209
208	$Event::DIED = sub {	210	$Event::DIED = sub {
209	warn "error in event callback: @_";	211	warn "error in event callback: @_";
210	};	212	};
		213
		214	#############################################################################
211		215
212	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
213		217
214	=over 4	218	=over 4
215		219
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	239	$d
236	} \|\| "[unable to dump $_[0]: '$@']";	240	} \|\| "[unable to dump $_[0]: '$@']";
237	}	241	}
238		242
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
242		244
243	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
244		246
245	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
246		248
247	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
		250
		251	=cut
		252
		253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		254
		255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
248		257
249	=item cf::lock_wait $string	258	=item cf::lock_wait $string
250		259
251	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
252		261
…		…
318		327
319	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
320		329
321	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
322		331
323	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
326		336
327	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
330	fast or be very important.	340	fast or be very important.
…		…
390	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
391		401
392	$coro	402	$coro
393	}	403	}
394		404
395	sub write_runtime {	405	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		406
398	# first touch the runtime file to show we are still running:	407	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
400		411
401	IO::AIO::aio_utime $runtime, undef, undef;	412	=cut
402		413
403	my $guard = cf::lock_acquire "write_runtime";	414	sub _store_scalar {
404		415	open my $fh, ">", \my $buf
405	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	416	or die "fork_call: cannot open fh-to-buf in child : $!";
406	or return;	417	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	418	close $fh;
423	or return;
424		419
425	aio_rename "$runtime~", $runtime	420	$buf
426	and return;	421	}
427		422
428	warn "runtime file written.\n";	423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
429		425
		426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		427	# or die "socketpair: $!";
		428	pipe my $fh1, my $fh2
		429	or die "pipe: $!";
		430
		431	if (my $pid = fork) {
		432	close $fh2;
		433
		434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		435	warn "pst<$res>" unless $res =~ /^pst/;
		436	$res = Coro::Storable::thaw $res;
		437
		438	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		439
		440	Carp::confess $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
430	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		498	my $key = "$_[0]/$_[1]";
		499
		500	cf::sync_job {
		501	BDB::db_get $DB, undef, $key, my $data;
		502
		503	$! ? ()
		504	: $data
		505	}
		506	}
		507
		508	sub db_put($$$) {
		509	BDB::dbreq_pri 4;
		510	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		511	}
		512
		513	=item cf::cache $id => [$paths...], $processversion => $process
		514
		515	Generic caching function that returns the value of the resource $id,
		516	caching and regenerating as required.
		517
		518	This function can block.
		519
		520	=cut
		521
		522	sub cache {
		523	my ($id, $src, $processversion, $process) = @_;
		524
		525	my $meta =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	aio_stat $_
		530	and Carp::croak "$_: $!";
		531
		532	($_, (stat _)[7,9])
		533	} @$src;
		534
		535	my $dbmeta = db_get cache => "$id/meta";
		536	if ($dbmeta ne $meta) {
		537	# changed, we may need to process
		538
		539	my @data;
		540	my $md5;
		541
		542	for (0 .. $#$src) {
		543	0 <= aio_load $src->[$_], $data[$_]
		544	or Carp::croak "$src->[$_]: $!";
		545	}
		546
		547	# if processing is expensive, check
		548	# checksum first
		549	if (1) {
		550	$md5 =
		551	join "\x00",
		552	$processversion,
		553	map {
		554	Coro::cede;
		555	($src->[$_], Digest::MD5::md5_hex $data[$_])
		556	} 0.. $#$src;
		557
		558
		559	my $dbmd5 = db_get cache => "$id/md5";
		560	if ($dbmd5 eq $md5) {
		561	db_put cache => "$id/meta", $meta;
		562
		563	return db_get cache => "$id/data";
		564	}
		565	}
		566
		567	my $t1 = Time::HiRes::time;
		568	my $data = $process->(\@data);
		569	my $t2 = Time::HiRes::time;
		570
		571	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		572
		573	db_put cache => "$id/data", $data;
		574	db_put cache => "$id/md5" , $md5;
		575	db_put cache => "$id/meta", $meta;
		576
		577	return $data;
		578	}
		579
		580	db_get cache => "$id/data"
431	}	581	}
432		582
433	=item cf::datalog type => key => value, ...	583	=item cf::datalog type => key => value, ...
434		584
435	Log a datalog packet of the given type with the given key-value pairs.	585	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")	603	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
455		605
456	In the following description, CLASS can be any of C<global>, C<object>	606	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	607	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	608	Crossfire TRT).
459		609
460	=over 4	610	=over 4
461		611
462	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
463		613
…		…
665	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
666	}	816	}
667		817
668	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
669	} else {	819	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	821	}
672		822
673	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
674	}	824	}
675		825
…		…
877	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av \|\| []};	1028	$filename, length $data, scalar @{$av \|\| []};
879	return ($data, $av);	1029	return ($data, $av);
880	}	1030	}
881		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
		1037
882	#############################################################################	1038	#############################################################################
883	# command handling &c	1039	# command handling &c
884		1040
885	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
886		1042
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1055	}
900		1056
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1058
903	Register a callbackf ro execution when the client sends an extcmd packet.	1059	Register a callback for execution when the client sends an (synchronous)
		1060	extcmd packet. Ext commands will be processed in the order they are
		1061	received by the server, like other user commands. The first argument is
		1062	the logged-in player. Ext commands can only be processed after a player
		1063	has logged in successfully.
904		1064
905	If the callback returns something, it is sent back as if reply was being	1065	If the callback returns something, it is sent back as if reply was being
906	called.	1066	called.
907		1067
		1068	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1069
		1070	Register a callback for execution when the client sends an (asynchronous)
		1071	exticmd packet. Exti commands are processed by the server as soon as they
		1072	are received, i.e. out of order w.r.t. other commands. The first argument
		1073	is a client socket. Exti commands can be received anytime, even before
		1074	log-in.
		1075
		1076	If the callback returns something, it is sent back as if reply was being
		1077	called.
		1078
908	=cut	1079	=cut
909		1080
910	sub register_extcmd {	1081	sub register_extcmd {
911	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
912		1083
913	$EXTCMD{$name} = $cb;	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
914	}	1091	}
915		1092
916	cf::player->attach (	1093	cf::player->attach (
917	on_command => sub {	1094	on_command => sub {
918	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1104	cf::override;
928	},	1105	},
929	on_extcmd => sub {	1106	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
931		1108
932	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1110
934	if (ref $msg) {	1111	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
967	path => $path,	1144	path => $path,
968	base => $base,	1145	base => $base,
969	pkg => $pkg,	1146	pkg => $pkg,
970	);	1147	);
971		1148
972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }	1149	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
973	if $source =~ /^#!.?perl.?#\s(.)$/;	1150	if $source =~ /\A#!.?perl.?#\s(.)$/m;
974		1151
975	$ext{source} =	1152	$ext{source} =
976	"package $pkg; use strict; use utf8;\n"	1153	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"	1154	. "#line 1 \"$path\"\n{\n"
978	. $source	1155	. $source
…		…
984	my %done;	1161	my %done;
985	while (%todo) {	1162	while (%todo) {
986	my $progress;	1163	my $progress;
987		1164
988	while (my ($k, $v) = each %todo) {	1165	while (my ($k, $v) = each %todo) {
989	for (split /,\s*/, $ext{meta}{depends}) {	1166	for (split /,\s*/, $v->{meta}{depends}) {
990	goto skip	1167	goto skip
991	unless exists $done{$_};	1168	unless exists $done{$_};
992	}	1169	}
993		1170
994	warn "... loading '$k' into '$v->{pkg}'\n";	1171	warn "... loading '$k' into '$v->{pkg}'\n";
995		1172
996	unless (eval $v->{source}) {	1173	unless (eval $v->{source}) {
997	my $msg = $@ ? "$v->{path}: $@\n"	1174	my $msg = $@ ? "$v->{path}: $@\n"
998	: "extension disabled.\n";	1175	: "$v->{base}: extension inactive.\n";
999		1176
1000	if (exists $v->{meta}{mandatory}) {	1177	if (exists $v->{meta}{mandatory}) {
1001	warn $msg;	1178	warn $msg;
1002	warn "mandatory extension failed to load, exiting.\n";	1179	warn "mandatory extension failed to load, exiting.\n";
1003	exit 1;	1180	exit 1;
1004	}	1181	}
1005		1182
1006	die $msg;	1183	warn $msg;
1007	}	1184	}
1008		1185
1009	$done{$k} = delete $todo{$k};	1186	$done{$k} = delete $todo{$k};
1010	push @EXTS, $v->{pkg};	1187	push @EXTS, $v->{pkg};
		1188	$progress = 1;
1011	}	1189	}
1012		1190
1013	skip:	1191	skip:
1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"	1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1015	unless $progress;	1193	unless $progress;
1016	}	1194	}
1017	};	1195	};
1018	}	1196	}
1019		1197
1020	#############################################################################	1198	#############################################################################
		1199
		1200	=back
1021		1201
1022	=head2 CORE EXTENSIONS	1202	=head2 CORE EXTENSIONS
1023		1203
1024	Functions and methods that extend core crossfire objects.	1204	Functions and methods that extend core crossfire objects.
1025		1205
…		…
1213	}	1393	}
1214		1394
1215	\@paths	1395	\@paths
1216	}	1396	}
1217		1397
		1398	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1399
		1400	Expand crossfire pod fragments into protocol xml.
		1401
		1402	=cut
		1403
		1404	sub expand_cfpod {
		1405	((my $self), (local $_)) = @_;
		1406
		1407	# escape & and <
		1408	s/&/&/g;
		1409	s/(?<![BIUGH])</</g;
		1410
		1411	# this is buggy, it needs to properly take care of nested <'s
		1412
		1413	1 while
		1414	# replace B<>, I<>, U<> etc.
		1415	s/B<([^\>]*)>/<b>$1<\/b>/
		1416	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1417	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1418	# replace G<male\|female> tags
		1419	\|\| s{G<([^>\|])\\|([^>])>}{
		1420	$self->gender ? $2 : $1
		1421	}ge
		1422	# replace H<hint text>
		1423	\|\| s{H<([^\>]*)>}
		1424	{
		1425	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1426	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1427	"")
		1428	[$self->{hintmode}]
		1429	}ge;
		1430
		1431	# create single paragraphs (very hackish)
		1432	s/(?<=\S)\n(?=\w)/ /g;
		1433
		1434	# compress some whitespace
		1435	s/\s+\n/\n/g; # ws line-ends
		1436	s/\n\n+/\n/g; # double lines
		1437	s/^\n+//; # beginning lines
		1438	s/\n+$//; # ending lines
		1439
		1440	warn $_;#d#
		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) = @_;
…		…
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 $client->async (\&cb)
2238		2551
2239	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
…		…
2288		2601
2289	=pod	2602	=pod
2290		2603
2291	The following functions and methods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
2292		2605
2293	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
2294	cf::object::player player	2610	cf::object::player
2295	cf::player peaceful	2611	player
2296	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
2297		2618
2298	=cut	2619	=cut
2299		2620
2300	for (	2621	for (
2301	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
2302	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
2303	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
2304	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
2305	) {	2627	) {
2306	no strict 'refs';	2628	no strict 'refs';
…		…
2375	}	2697	}
2376		2698
2377	=back	2699	=back
2378		2700
2379	=cut	2701	=cut
2380
2381	#############################################################################
2382
2383	=head2 EXTENSION DATABASE SUPPORT
2384
2385	Crossfire maintains a very simple database for extension use. It can
2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2387	convert to/from binary).
2388
2389	The parameter C<$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 $@;
2549	_exit 0;
2550	}
2551	}
2552		2702
2553	#############################################################################	2703	#############################################################################
2554	# the server's init and main functions	2704	# the server's init and main functions
2555		2705
2556	sub load_facedata($) {	2706	sub load_facedata($) {
…		…
2614	load_facedata "$DATADIR/facedata"	2764	load_facedata "$DATADIR/facedata"
2615	or die "unable to load facedata\n";	2765	or die "unable to load facedata\n";
2616	}	2766	}
2617		2767
2618	sub reload_archetypes {	2768	sub reload_archetypes {
		2769	load_resource_file "$DATADIR/archetypes"
		2770	or die "unable to load archetypes\n";
		2771	#d# NEED to laod twice to resolve forward references
		2772	# this really needs to be done in an extra post-pass
		2773	# (which needs to be synchronous, so solve it differently)
2619	load_resource_file "$DATADIR/archetypes"	2774	load_resource_file "$DATADIR/archetypes"
2620	or die "unable to load archetypes\n";	2775	or die "unable to load archetypes\n";
2621	}	2776	}
2622		2777
2623	sub reload_treasures {	2778	sub reload_treasures {
…		…
2695	},	2850	},
2696	);	2851	);
2697	}	2852	}
2698	}	2853	}
2699		2854
		2855	sub write_runtime {
		2856	my $runtime = "$LOCALDIR/runtime";
		2857
		2858	# first touch the runtime file to show we are still running:
		2859	# the fsync below can take a very very long time.
		2860
		2861	IO::AIO::aio_utime $runtime, undef, undef;
		2862
		2863	my $guard = cf::lock_acquire "write_runtime";
		2864
		2865	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2866	or return;
		2867
		2868	my $value = $cf::RUNTIME + 90 + 10;
		2869	# 10 is the runtime save interval, for a monotonic clock
		2870	# 60 allows for the watchdog to kill the server.
		2871
		2872	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2873	and return;
		2874
		2875	# always fsync - this file is important
		2876	aio_fsync $fh
		2877	and return;
		2878
		2879	# touch it again to show we are up-to-date
		2880	aio_utime $fh, undef, undef;
		2881
		2882	close $fh
		2883	or return;
		2884
		2885	aio_rename "$runtime~", $runtime
		2886	and return;
		2887
		2888	warn "runtime file written.\n";
		2889
		2890	1
		2891	}
		2892
2700	sub emergency_save() {	2893	sub emergency_save() {
2701	my $freeze_guard = cf::freeze_mainloop;	2894	my $freeze_guard = cf::freeze_mainloop;
2702		2895
2703	warn "enter emergency perl save\n";	2896	warn "enter emergency perl save\n";
2704		2897
…		…
2779	%EXT_CORO = ();	2972	%EXT_CORO = ();
2780		2973
2781	warn "removing commands";	2974	warn "removing commands";
2782	%COMMAND = ();	2975	%COMMAND = ();
2783		2976
2784	warn "removing ext commands";	2977	warn "removing ext/exti commands";
2785	%EXTCMD = ();	2978	%EXTCMD = ();
		2979	%EXTICMD = ();
2786		2980
2787	warn "unloading/nuking all extensions";	2981	warn "unloading/nuking all extensions";
2788	for my $pkg (@EXTS) {	2982	for my $pkg (@EXTS) {
2789	warn "... unloading $pkg";	2983	warn "... unloading $pkg";
2790		2984

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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 1.300 by root, Tue Jul 10 06:44:29 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 1.300 by root, Tue Jul 10 06:44:29 2007 UTC