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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.267 by root, Sat May 19 00:08:11 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;
…		…
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		196
194	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	198	# within the Safe compartment.
196	for my $pkg (qw(	199	for my $pkg (qw(
197	cf::global cf::attachable	200	cf::global cf::attachable
…		…
205	}	208	}
206		209
207	$Event::DIED = sub {	210	$Event::DIED = sub {
208	warn "error in event callback: @_";	211	warn "error in event callback: @_";
209	};	212	};
		213
		214	#############################################################################
210		215
211	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
212		217
213	=over 4	218	=over 4
214		219
…		…
233	$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;
234	$d	239	$d
235	} \|\| "[unable to dump $_[0]: '$@']";	240	} \|\| "[unable to dump $_[0]: '$@']";
236	}	241	}
237		242
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
241		244
242	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
243		246
244	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
245		248
246	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]) }
247		257
248	=item cf::lock_wait $string	258	=item cf::lock_wait $string
249		259
250	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
251		261
…		…
317		327
318	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
319		329
320	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
321		331
322	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
323	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
324	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.
325		336
326	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
327	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
328	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
329	fast or be very important.	340	fast or be very important.
…		…
389	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
390		401
391	$coro	402	$coro
392	}	403	}
393		404
394	sub write_runtime {	405	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		406
397	# first touch the runtime file to show we are still running:	407	Executes the given code block with the given arguments in a seperate
398	# 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.
399		411
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	412	=cut
401	utime undef, undef, $fh;
402	}
403		413
404	my $guard = cf::lock_acquire "write_runtime";	414	sub _store_scalar {
405		415	open my $fh, ">", \my $buf
406	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	416	or die "fork_call: cannot open fh-to-buf in child : $!";
407	or return;	417	Storable::store_fd $_[0], $fh;
408
409	my $value = $cf::RUNTIME + 90 + 10;
410	# 10 is the runtime save interval, for a monotonic clock
411	# 60 allows for the watchdog to kill the server.
412
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
414	and return;
415
416	# always fsync - this file is important
417	aio_fsync $fh
418	and return;
419
420	# touch it again to show we are up-to-date
421	utime undef, undef, $fh;
422
423	close $fh	418	close $fh;
424	or return;
425		419
426	aio_rename "$runtime~", $runtime	420	$buf
427	and return;	421	}
428		422
429	warn "runtime file written.\n";#d#	423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
430		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 $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
431	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		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"
432	}	581	}
433		582
434	=item cf::datalog type => key => value, ...	583	=item cf::datalog type => key => value, ...
435		584
436	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.
…		…
454	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")
455	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
456		605
457	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>
458	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
459	crossfire+).	608	Crossfire TRT).
460		609
461	=over 4	610	=over 4
462		611
463	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
464		613
…		…
666	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
667	}	816	}
668		817
669	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
670	} else {	819	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	821	}
673		822
674	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
675	}	824	}
676		825
…		…
874	or return;	1023	or return;
875	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
876	}	1025	}
877		1026
878	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
879	$filename, length $data, scalar @{$av \|\| []};#d#	1028	$filename, length $data, scalar @{$av \|\| []};
880	return ($data, $av);	1029	return ($data, $av);
881	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
882		1037
883	#############################################################################	1038	#############################################################################
884	# command handling &c	1039	# command handling &c
885		1040
886	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1055	}
901		1056
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1058
904	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.
905		1064
906	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
907	called.	1066	called.
908		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
909	=cut	1079	=cut
910		1080
911	sub register_extcmd {	1081	sub register_extcmd {
912	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
913		1083
914	$EXTCMD{$name} = $cb;	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
915	}	1091	}
916		1092
917	cf::player->attach (	1093	cf::player->attach (
918	on_command => sub {	1094	on_command => sub {
919	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1104	cf::override;
929	},	1105	},
930	on_extcmd => sub {	1106	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
932		1108
933	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1110
935	if (ref $msg) {	1111	if (ref $msg) {
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
937	if (my %reply = $cb->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
938	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
944		1120
945	cf::override;	1121	cf::override;
946	},	1122	},
947	);	1123	);
948		1124
949	sub load_extension {
950	my ($path) = @_;
951
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
953	my $base = $1;
954	my $pkg = $1;
955	$pkg =~ s/[^[:word:]]/_/g;
956	$pkg = "ext::$pkg";
957
958	warn "... loading '$path' into '$pkg'\n";
959
960	open my $fh, "<:utf8", $path
961	or die "$path: $!";
962
963	my $source =
964	"package $pkg; use strict; use utf8;\n"
965	. "#line 1 \"$path\"\n{\n"
966	. (do { local $/; <$fh> })
967	. "\n};\n1";
968
969	unless (eval $source) {
970	my $msg = $@ ? "$path: $@\n"
971	: "extension disabled.\n";
972	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
973	warn $@;
974	warn "mandatory extension failed to load, exiting.\n";
975	exit 1;
976	}
977	die $@;
978	}
979
980	push @EXTS, $pkg;
981	}
982
983	sub load_extensions {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
984	for my $ext (<$LIBDIR/*.ext>) {	1129	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1130	next unless -r $path;
986	eval {	1131
987	load_extension $ext;	1132	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1133	my $base = $1;
		1134	my $pkg = $1;
		1135	$pkg =~ s/[^[:word:]]/_/g;
		1136	$pkg = "ext::$pkg";
		1137
		1138	open my $fh, "<:utf8", $path
		1139	or die "$path: $!";
		1140
		1141	my $source = do { local $/; <$fh> };
		1142
		1143	my %ext = (
		1144	path => $path,
		1145	base => $base,
		1146	pkg => $pkg,
		1147	);
		1148
		1149	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1150	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1151
		1152	$ext{source} =
		1153	"package $pkg; use strict; use utf8;\n"
		1154	. "#line 1 \"$path\"\n{\n"
		1155	. $source
		1156	. "\n};\n1";
		1157
		1158	$todo{$base} = \%ext;
		1159	}
		1160
		1161	my %done;
		1162	while (%todo) {
		1163	my $progress;
		1164
		1165	while (my ($k, $v) = each %todo) {
		1166	for (split /,\s*/, $v->{meta}{depends}) {
		1167	goto skip
		1168	unless exists $done{$_};
		1169	}
		1170
		1171	warn "... loading '$k' into '$v->{pkg}'\n";
		1172
		1173	unless (eval $v->{source}) {
		1174	my $msg = $@ ? "$v->{path}: $@\n"
		1175	: "$v->{base}: extension inactive.\n";
		1176
		1177	if (exists $v->{meta}{mandatory}) {
		1178	warn $msg;
		1179	warn "mandatory extension failed to load, exiting.\n";
		1180	exit 1;
		1181	}
		1182
		1183	warn $msg;
		1184	}
		1185
		1186	$done{$k} = delete $todo{$k};
		1187	push @EXTS, $v->{pkg};
		1188	$progress = 1;
988	1	1189	}
989	} or warn "$ext not loaded: $@";	1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
990	}	1195	};
991	}	1196	}
992		1197
993	#############################################################################	1198	#############################################################################
		1199
		1200	=back
994		1201
995	=head2 CORE EXTENSIONS	1202	=head2 CORE EXTENSIONS
996		1203
997	Functions and methods that extend core crossfire objects.	1204	Functions and methods that extend core crossfire objects.
998		1205
…		…
1186	}	1393	}
1187		1394
1188	\@paths	1395	\@paths
1189	}	1396	}
1190		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
1191	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1192		1450
1193	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1194		1452
1195	=cut	1453	=cut
1196		1454
1197	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1198	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1199		1457
1200	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1201		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1202	$self->send ("ext " . cf::to_json \%msg);
1203	}	1460	}
1204		1461
1205	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1206		1463
1207	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1222		1479
1223	package cf::region;	1480	package cf::region;
1224		1481
1225	=item cf::region::find_by_path $path	1482	=item cf::region::find_by_path $path
1226		1483
1227	Tries to decuce the probable region for a map knowing only its path.	1484	Tries to decuce the likely region for a map knowing only its path.
1228		1485
1229	=cut	1486	=cut
1230		1487
1231	sub find_by_path($) {	1488	sub find_by_path($) {
1232	my ($path) = @_;	1489	my ($path) = @_;
…		…
1306	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1307		1564
1308	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1309	local $self->{path};	1566	local $self->{path};
1310	local $self->{load_path};	1567	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1568
1314	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1315	}	1570	}
1316		1571
1317	sub normalise {	1572	sub normalise {
…		…
1417		1672
1418	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1419	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1420	}	1675	}
1421		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
1422	sub unlink_save {	1685	sub unlink_save {
1423	my ($self) = @_;	1686	my ($self) = @_;
1424		1687
1425	utf8::encode (my $save = $self->save_path);	1688	utf8::encode (my $save = $self->save_path);
1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1482	$self->load_header_orig	1745	$self->load_header_orig
1483	or return;	1746	or return;
1484	$self->prepare_orig;	1747	$self->prepare_orig;
1485	}	1748	}
1486		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
1487	$self->default_region (cf::region::find_by_path $self->{path})	1753	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	1754	unless $self->default_region;
1489		1755
1490	1	1756	1
1491	}	1757	}
…		…
1506	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1507		1773
1508	$map->load_header	1774	$map->load_header
1509	or return;	1775	or return;
1510		1776
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	1778	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1514	$map->reset;	1780	$map->reset;
1515	undef $guard;	1781	undef $guard;
1516	return find $path;	1782	return find $path;
…		…
1583	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1584		1850
1585	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	1852	if $self->per_player;
1587		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
		1856
1588	$self	1857	$self
1589	}	1858	}
1590		1859
1591	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	1861	sub load_diag {
…		…
1702		1971
1703	sub reset_at {	1972	sub reset_at {
1704	my ($self) = @_;	1973	my ($self) = @_;
1705		1974
1706	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1708	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1709		1977
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1712		1980
…		…
1723	my ($self) = @_;	1991	my ($self) = @_;
1724		1992
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		1994
1727	return if $self->players;	1995	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		1996
1730	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
1731		1998
1732	$self->in_memory (cf::MAP_SWAPPED);	1999	$self->in_memory (cf::MAP_SWAPPED);
1733		2000
1734	# need to save uniques path	2001	# need to save uniques path
1735	unless ($self->{deny_save}) {	2002	unless ($self->{deny_save}) {
…		…
1767	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1768		2035
1769	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1770	}	2037	}
1771		2038
		2039	=item $maps = cf::map::tmp_maps
		2040
		2041	Returns an arrayref with all map paths of currently instantiated and saved
		2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
		2055	}
		2056
		2057	=item $maps = cf::map::random_maps
		2058
		2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
		2061
		2062	=cut
		2063
		2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
1772	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1773		2076
1774	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2078	instantiated unique items. May block.
1776		2079
1777	=cut	2080	=cut
1778		2081
1779	sub unique_maps() {	2082	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2083	[
1781	or return;	2084	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2085	utf8::decode $_;
1787	next if /\.pst$/;	2086	/\.map$/
1788	next unless /^$PATH_SEP/o;	2087	? normalise $_
1789		2088	: ()
1790	push @paths, cf::map::normalise $_;	2089	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2090	]
1792
1793	\@paths
1794	}	2091	}
1795		2092
1796	package cf;	2093	package cf;
1797		2094
1798	=back	2095	=back
…		…
1844		2141
1845	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1846		2143
1847	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1849	} 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 {
1850	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1852	}	2163	}
1853	}	2164	}
1854		2165
1855	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1856		2167
…		…
1904	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1905		2216
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2218
1908	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1910		2221
1911	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2222	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1912	}	2223	}
1913		2224
1914	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1916		2229
1917	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1918		2231
1919	unless ($map) {	2232	unless ($map) {
1920	# restore original map position	2233	# restore original map position
…		…
1943		2256
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1946	}	2259	}
1947		2260
1948	cf::player->attach (
1949	on_logout => sub {
1950	my ($pl) = @_;
1951
1952	# abort map switching before logout
1953	if ($pl->ob->{_link_pos}) {
1954	cf::sync_job {
1955	$pl->ob->leave_link
1956	};
1957	}
1958	},
1959	on_login => sub {
1960	my ($pl) = @_;
1961
1962	# try to abort aborted map switching on player login :)
1963	# should happen only on crashes
1964	if ($pl->ob->{_link_pos}) {
1965	$pl->ob->enter_link;
1966	(async {
1967	$pl->ob->reply (undef,
1968	"There was an internal problem at your last logout, "
1969	. "the server will try to bring you to your intended destination in a second.",
1970	cf::NDI_RED);
1971	# we need this sleep as the login has a concurrent enter_exit running
1972	# and this sleep increases chances of the player not ending up in scorn
1973	Coro::Timer::sleep 1;
1974	$pl->ob->leave_link;
1975	})->prio (2);
1976	}
1977	},
1978	);
1979
1980	=item $player_object->goto ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1981		2262
		2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
		2267
1982	=cut	2268	=cut
		2269
		2270	our $GOTOGEN;
1983		2271
1984	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1985	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1986		2277
1987	$self->enter_link;	2278	$self->enter_link;
1988		2279
1989	(async {	2280	(async {
1990	my $map = eval {	2281	my $map = eval {
1991	my $map = cf::map::find $path;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1992	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
		2286	$map = $check->($map) if $check && $map;
		2287	} else {
		2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		2289	}
		2290
1993	$map	2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
		2296	LOG llevError \| logBacktrace, Carp::longmess $@;
1994	} or	2297	}
1995	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
1996		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1997	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1998	})->prio (1);	2303	})->prio (1);
1999	}	2304	}
2000		2305
2001	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
2002		2307
…		…
2071	my $hp = $exit->stats->hp;	2376	my $hp = $exit->stats->hp;
2072	my $sp = $exit->stats->sp;	2377	my $sp = $exit->stats->sp;
2073		2378
2074	$self->enter_link;	2379	$self->enter_link;
2075		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
2076	(async {	2385	(async {
2077	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
2078	unless (eval {	2387	unless (eval {
2079	$self->goto ($slaying, $hp, $sp);	2388	$self->goto ($slaying, $hp, $sp);
2080		2389
…		…
2107		2416
2108	utf8::encode $text;	2417	utf8::encode $text;
2109	$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);
2110	}	2419	}
2111		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
2112	=item $client->ext_event ($type, %msg)	2461	=item $client->ext_event ($type, %msg)
2113		2462
2114	Sends an exti event to the client.	2463	Sends an ext event to the client.
2115		2464
2116	=cut	2465	=cut
2117		2466
2118	sub cf::client::ext_event($$%) {	2467	sub cf::client::ext_event($$%) {
2119	my ($self, $type, %msg) = @_;	2468	my ($self, $type, %msg) = @_;
2120		2469
2121	$msg{msgtype} = "event_$type";	2470	$msg{msgtype} = "event_$type";
2122	$self->send_packet ("ext " . cf::to_json \%msg);	2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2123	}	2472	}
2124		2473
2125	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
2126		2475
2127	Queues a query to the client, calling the given callback with	2476	Queues a query to the client, calling the given callback with
2128	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>,
2129	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>.
2130		2479
2131	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
2132	reliable at some point in the future.	2481	become reliable at some point in the future.
2133		2482
2134	=cut	2483	=cut
2135		2484
2136	sub cf::client::query {	2485	sub cf::client::query {
2137	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
2145	utf8::encode $text;	2494	utf8::encode $text;
2146	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2147		2496
2148	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
2149	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
2150	}	2501	}
2151		2502
2152	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
2153	on_reply => sub {	2509	on_reply => sub {
2154	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
2155		2511
2156	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
2157	# get handled first	2513	# get handled first
…		…
2169	} else {	2525	} else {
2170	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2171	}	2527	}
2172	}	2528	}
2173	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($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	},
2174	);	2548	);
2175		2549
2176	=item $client->async (\&cb)	2550	=item $client->async (\&cb)
2177		2551
2178	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
…		…
2227		2601
2228	=pod	2602	=pod
2229		2603
2230	The following functions and methods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
2231		2605
2232	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
2233	cf::object::player player	2610	cf::object::player
2234	cf::player peaceful	2611	player
2235	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
2236		2618
2237	=cut	2619	=cut
2238		2620
2239	for (	2621	for (
2240	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
2241	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
2242	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
2243	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
2244	) {	2627	) {
2245	no strict 'refs';	2628	no strict 'refs';
…		…
2314	}	2697	}
2315		2698
2316	=back	2699	=back
2317		2700
2318	=cut	2701	=cut
2319
2320	#############################################################################
2321
2322	=head2 EXTENSION DATABASE SUPPORT
2323
2324	Crossfire maintains a very simple database for extension use. It can
2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2326	convert to/from binary).
2327
2328	The parameter C<$family> should best start with the name of the extension
2329	using it, it should be unique.
2330
2331	=over 4
2332
2333	=item $value = cf::db_get $family => $key
2334
2335	Returns a single value from the database.
2336
2337	=item cf::db_put $family => $key => $value
2338
2339	Stores the given C<$value> in the family.
2340
2341	=cut
2342
2343	our $DB;
2344
2345	sub db_init {
2346	unless ($DB) {
2347	$DB = BDB::db_create $DB_ENV;
2348
2349	cf::sync_job {
2350	eval {
2351	$DB->set_flags (BDB::CHKSUM);
2352
2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2354	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2355	cf::cleanup "db_open(db): $!" if $!;
2356	};
2357	cf::cleanup "db_open(db): $@" if $@;
2358	};
2359	}
2360	}
2361
2362	sub db_get($$) {
2363	my $key = "$_[0]/$_[1]";
2364
2365	cf::sync_job {
2366	BDB::db_get $DB, undef, $key, my $data;
2367
2368	$! ? ()
2369	: $data
2370	}
2371	}
2372
2373	sub db_put($$$) {
2374	BDB::dbreq_pri 4;
2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2376	}
2377
2378	=item cf::cache $id => [$paths...], $processversion => $process
2379
2380	Generic caching function that returns the value of the resource $id,
2381	caching and regenerating as required.
2382
2383	This function can block.
2384
2385	=cut
2386
2387	sub cache {
2388	my ($id, $src, $processversion, $process) = @_;
2389
2390	my $meta =
2391	join "\x00",
2392	$processversion,
2393	map {
2394	aio_stat $_
2395	and Carp::croak "$_: $!";
2396
2397	($_, (stat _)[7,9])
2398	} @$src;
2399
2400	my $dbmeta = db_get cache => "$id/meta";
2401	if ($dbmeta ne $meta) {
2402	# changed, we may need to process
2403
2404	my @data;
2405	my $md5;
2406
2407	for (0 .. $#$src) {
2408	0 <= aio_load $src->[$_], $data[$_]
2409	or Carp::croak "$src->[$_]: $!";
2410	}
2411
2412	# if processing is expensive, check
2413	# checksum first
2414	if (1) {
2415	$md5 =
2416	join "\x00",
2417	$processversion,
2418	map {
2419	Coro::cede;
2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
2421	} 0.. $#$src;
2422
2423
2424	my $dbmd5 = db_get cache => "$id/md5";
2425	if ($dbmd5 eq $md5) {
2426	db_put cache => "$id/meta", $meta;
2427
2428	return db_get cache => "$id/data";
2429	}
2430	}
2431
2432	my $t1 = Time::HiRes::time;
2433	my $data = $process->(\@data);
2434	my $t2 = Time::HiRes::time;
2435
2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2437
2438	db_put cache => "$id/data", $data;
2439	db_put cache => "$id/md5" , $md5;
2440	db_put cache => "$id/meta", $meta;
2441
2442	return $data;
2443	}
2444
2445	db_get cache => "$id/data"
2446	}
2447
2448	=item fork_call { }, $args
2449
2450	Executes the given code block with the given arguments in a seperate
2451	process, returning the results. Everything must be serialisable with
2452	Coro::Storable. May, of course, block. Note that the executed sub may
2453	never block itself or use any form of Event handling.
2454
2455	=cut
2456
2457	sub fork_call(&@) {
2458	my ($cb, @args) = @_;
2459
2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2461	# or die "socketpair: $!";
2462	pipe my $fh1, my $fh2
2463	or die "pipe: $!";
2464
2465	if (my $pid = fork) {
2466	close $fh2;
2467
2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2469	$res = Coro::Storable::thaw $res;
2470
2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2472
2473	die $$res unless "ARRAY" eq ref $res;
2474
2475	return wantarray ? @$res : $res->[-1];
2476	} else {
2477	reset_signals;
2478	local $SIG{__WARN__};
2479	local $SIG{__DIE__};
2480	eval {
2481	close $fh1;
2482
2483	my @res = eval { $cb->(@args) };
2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2485	};
2486
2487	warn $@ if $@;
2488	_exit 0;
2489	}
2490	}
2491
2492
2493		2702
2494	#############################################################################	2703	#############################################################################
2495	# the server's init and main functions	2704	# the server's init and main functions
2496		2705
2497	sub load_facedata($) {	2706	sub load_facedata($) {
…		…
2557	}	2766	}
2558		2767
2559	sub reload_archetypes {	2768	sub reload_archetypes {
2560	load_resource_file "$DATADIR/archetypes"	2769	load_resource_file "$DATADIR/archetypes"
2561	or die "unable to load archetypes\n";	2770	or die "unable to load archetypes\n";
		2771	#d# NEED to laod twice to resolve forward references
		2772	# this really needs to be done in an extra post-pass
		2773	# (which needs to be synchronous, so solve it differently)
		2774	load_resource_file "$DATADIR/archetypes"
		2775	or die "unable to load archetypes\n";
2562	}	2776	}
2563		2777
2564	sub reload_treasures {	2778	sub reload_treasures {
2565	load_resource_file "$DATADIR/treasures"	2779	load_resource_file "$DATADIR/treasures"
2566	or die "unable to load treasurelists\n";	2780	or die "unable to load treasurelists\n";
…		…
2569	sub reload_resources {	2783	sub reload_resources {
2570	warn "reloading resource files...\n";	2784	warn "reloading resource files...\n";
2571		2785
2572	reload_regions;	2786	reload_regions;
2573	reload_facedata;	2787	reload_facedata;
		2788	#reload_archetypes;#d#
2574	reload_archetypes;	2789	reload_archetypes;
2575	reload_treasures;	2790	reload_treasures;
2576		2791
2577	warn "finished reloading resource files\n";	2792	warn "finished reloading resource files\n";
2578	}	2793	}
…		…
2635	},	2850	},
2636	);	2851	);
2637	}	2852	}
2638	}	2853	}
2639		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
2640	sub emergency_save() {	2893	sub emergency_save() {
2641	my $freeze_guard = cf::freeze_mainloop;	2894	my $freeze_guard = cf::freeze_mainloop;
2642		2895
2643	warn "enter emergency perl save\n";	2896	warn "enter emergency perl save\n";
2644		2897
…		…
2719	%EXT_CORO = ();	2972	%EXT_CORO = ();
2720		2973
2721	warn "removing commands";	2974	warn "removing commands";
2722	%COMMAND = ();	2975	%COMMAND = ();
2723		2976
2724	warn "removing ext commands";	2977	warn "removing ext/exti commands";
2725	%EXTCMD = ();	2978	%EXTCMD = ();
		2979	%EXTICMD = ();
2726		2980
2727	warn "unloading/nuking all extensions";	2981	warn "unloading/nuking all extensions";
2728	for my $pkg (@EXTS) {	2982	for my $pkg (@EXTS) {
2729	warn "... unloading $pkg";	2983	warn "... unloading $pkg";
2730		2984
…		…
2848	my $signal = new Coro::Signal;	3102	my $signal = new Coro::Signal;
2849	push @WAIT_FOR_TICK_BEGIN, $signal;	3103	push @WAIT_FOR_TICK_BEGIN, $signal;
2850	$signal->wait;	3104	$signal->wait;
2851	}	3105	}
2852		3106
		3107	my $min = 1e6;#d#
		3108	my $avg = 10;
2853	$TICK_WATCHER = Event->timer (	3109	$TICK_WATCHER = Event->timer (
2854	reentrant => 0,	3110	reentrant => 0,
2855	parked => 1,	3111	parked => 1,
2856	prio => 0,	3112	prio => 0,
2857	at => $NEXT_TICK \|\| $TICK,	3113	at => $NEXT_TICK \|\| $TICK,
…		…
2864	}	3120	}
2865		3121
2866	$NOW = $tick_start = Event::time;	3122	$NOW = $tick_start = Event::time;
2867		3123
2868	cf::server_tick; # one server iteration	3124	cf::server_tick; # one server iteration
		3125
		3126	0 && sync_job {#d#
		3127	for(1..10) {
		3128	my $t = Event::time;
		3129	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3130	or die;
		3131
		3132	$map->width (50);
		3133	$map->height (50);
		3134	$map->alloc;
		3135	$map->_load_objects ("/tmp/x.map", 1);
		3136	my $t = Event::time - $t;
		3137
		3138	#next unless $t < 0.0013;#d#
		3139	if ($t < $min) {
		3140	$min = $t;
		3141	}
		3142	$avg = $avg * 0.99 + $t * 0.01;
		3143	}
		3144	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3145	exit 0;
		3146	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3147	};
2869		3148
2870	$RUNTIME += $TICK;	3149	$RUNTIME += $TICK;
2871	$NEXT_TICK += $TICK;	3150	$NEXT_TICK += $TICK;
2872		3151
2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3152	if ($NOW >= $NEXT_RUNTIME_WRITE) {

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.267 by root, Sat May 19 00:08:11 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 1.267 by root, Sat May 19 00:08:11 2007 UTC vs.
Revision 1.300 by root, Tue Jul 10 06:44:29 2007 UTC