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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.268 by root, Tue May 22 10:50:00 2007 UTC vs.
Revision 1.284 by root, Sun Jun 24 04:15:42 2007 UTC

…		…
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		194
194	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	196	# within the Safe compartment.
196	for my $pkg (qw(	197	for my $pkg (qw(
197	cf::global cf::attachable	198	cf::global cf::attachable
…		…
205	}	206	}
206		207
207	$Event::DIED = sub {	208	$Event::DIED = sub {
208	warn "error in event callback: @_";	209	warn "error in event callback: @_";
209	};	210	};
		211
		212	#############################################################################
210		213
211	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
212		215
213	=over 4	216	=over 4
214		217
…		…
317		320
318	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
319		322
320	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
321		324
322	The design of crossfire+ requires that the main coro ($Coro::main) is	325	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	326	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.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
325		329
326	If it must be done, put the blocking parts into C<sync_job>. This will run	330	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	331	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	332	server will be frozen during this time, so the block should either finish
329	fast or be very important.	333	fast or be very important.
…		…
389	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
390		394
391	$coro	395	$coro
392	}	396	}
393		397
394	sub write_runtime {	398	=item fork_call { }, $args
395	my $runtime = "$LOCALDIR/runtime";
396		399
397	# first touch the runtime file to show we are still running:	400	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	401	process, returning the results. Everything must be serialisable with
		402	Coro::Storable. May, of course, block. Note that the executed sub may
		403	never block itself or use any form of Event handling.
399		404
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	405	=cut
401	utime undef, undef, $fh;
402	}
403		406
404	my $guard = cf::lock_acquire "write_runtime";	407	sub fork_call(&@) {
		408	my ($cb, @args) = @_;
405		409
406	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
407	or return;	411	# or die "socketpair: $!";
		412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
408		414
409	my $value = $cf::RUNTIME + 90 + 10;	415	if (my $pid = fork) {
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	416	close $fh2;
424	or return;
425		417
426	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
427	and return;	419	$res = Coro::Storable::thaw $res;
428		420
429	warn "runtime file written.\n";#d#	421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
430		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
431	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		473	my $key = "$_[0]/$_[1]";
		474
		475	cf::sync_job {
		476	BDB::db_get $DB, undef, $key, my $data;
		477
		478	$! ? ()
		479	: $data
		480	}
		481	}
		482
		483	sub db_put($$$) {
		484	BDB::dbreq_pri 4;
		485	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		486	}
		487
		488	=item cf::cache $id => [$paths...], $processversion => $process
		489
		490	Generic caching function that returns the value of the resource $id,
		491	caching and regenerating as required.
		492
		493	This function can block.
		494
		495	=cut
		496
		497	sub cache {
		498	my ($id, $src, $processversion, $process) = @_;
		499
		500	my $meta =
		501	join "\x00",
		502	$processversion,
		503	map {
		504	aio_stat $_
		505	and Carp::croak "$_: $!";
		506
		507	($_, (stat _)[7,9])
		508	} @$src;
		509
		510	my $dbmeta = db_get cache => "$id/meta";
		511	if ($dbmeta ne $meta) {
		512	# changed, we may need to process
		513
		514	my @data;
		515	my $md5;
		516
		517	for (0 .. $#$src) {
		518	0 <= aio_load $src->[$_], $data[$_]
		519	or Carp::croak "$src->[$_]: $!";
		520	}
		521
		522	# if processing is expensive, check
		523	# checksum first
		524	if (1) {
		525	$md5 =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	Coro::cede;
		530	($src->[$_], Digest::MD5::md5_hex $data[$_])
		531	} 0.. $#$src;
		532
		533
		534	my $dbmd5 = db_get cache => "$id/md5";
		535	if ($dbmd5 eq $md5) {
		536	db_put cache => "$id/meta", $meta;
		537
		538	return db_get cache => "$id/data";
		539	}
		540	}
		541
		542	my $t1 = Time::HiRes::time;
		543	my $data = $process->(\@data);
		544	my $t2 = Time::HiRes::time;
		545
		546	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		547
		548	db_put cache => "$id/data", $data;
		549	db_put cache => "$id/md5" , $md5;
		550	db_put cache => "$id/meta", $meta;
		551
		552	return $data;
		553	}
		554
		555	db_get cache => "$id/data"
432	}	556	}
433		557
434	=item cf::datalog type => key => value, ...	558	=item cf::datalog type => key => value, ...
435		559
436	Log a datalog packet of the given type with the given key-value pairs.	560	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")	578	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
456		580
457	In the following description, CLASS can be any of C<global>, C<object>	581	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	582	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	583	Crossfire TRT).
460		584
461	=over 4	585	=over 4
462		586
463	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
464		588
…		…
666	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
667	}	791	}
668		792
669	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
670	} else {	794	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	796	}
673		797
674	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
675	}	799	}
676		800
…		…
874	or return;	998	or return;
875	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
876	}	1000	}
877		1001
878	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
879	$filename, length $data, scalar @{$av \|\| []};#d#	1003	$filename, length $data, scalar @{$av \|\| []};
880	return ($data, $av);	1004	return ($data, $av);
881	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
882		1012
883	#############################################################################	1013	#############################################################################
884	# command handling &c	1014	# command handling &c
885		1015
886	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1030	}
901		1031
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1033
904	Register a callbackf ro execution when the client sends an extcmd packet.	1034	Register a callback fro execution when the client sends an extcmd packet.
905		1035
906	If the callback returns something, it is sent back as if reply was being	1036	If the callback returns something, it is sent back as if reply was being
907	called.	1037	called.
908		1038
909	=cut	1039	=cut
…		…
944		1074
945	cf::override;	1075	cf::override;
946	},	1076	},
947	);	1077	);
948		1078
949	sub load_extension {
950	my ($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 {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
984	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1084	next unless -r $path;
986	eval {	1085
987	load_extension $ext;	1086	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1087	my $base = $1;
		1088	my $pkg = $1;
		1089	$pkg =~ s/[^[:word:]]/_/g;
		1090	$pkg = "ext::$pkg";
		1091
		1092	open my $fh, "<:utf8", $path
		1093	or die "$path: $!";
		1094
		1095	my $source = do { local $/; <$fh> };
		1096
		1097	my %ext = (
		1098	path => $path,
		1099	base => $base,
		1100	pkg => $pkg,
		1101	);
		1102
		1103	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1104	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1105
		1106	$ext{source} =
		1107	"package $pkg; use strict; use utf8;\n"
		1108	. "#line 1 \"$path\"\n{\n"
		1109	. $source
		1110	. "\n};\n1";
		1111
		1112	$todo{$base} = \%ext;
		1113	}
		1114
		1115	my %done;
		1116	while (%todo) {
		1117	my $progress;
		1118
		1119	while (my ($k, $v) = each %todo) {
		1120	for (split /,\s*/, $v->{meta}{depends}) {
		1121	goto skip
		1122	unless exists $done{$_};
		1123	}
		1124
		1125	warn "... loading '$k' into '$v->{pkg}'\n";
		1126
		1127	unless (eval $v->{source}) {
		1128	my $msg = $@ ? "$v->{path}: $@\n"
		1129	: "$v->{base}: extension inactive.\n";
		1130
		1131	if (exists $v->{meta}{mandatory}) {
		1132	warn $msg;
		1133	warn "mandatory extension failed to load, exiting.\n";
		1134	exit 1;
		1135	}
		1136
		1137	warn $msg;
		1138	}
		1139
		1140	$done{$k} = delete $todo{$k};
		1141	push @EXTS, $v->{pkg};
		1142	$progress = 1;
988	1	1143	}
989	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
990	}	1149	};
991	}	1150	}
992		1151
993	#############################################################################	1152	#############################################################################
		1153
		1154	=back
994		1155
995	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
996		1157
997	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
998		1159
…		…
1186	}	1347	}
1187		1348
1188	\@paths	1349	\@paths
1189	}	1350	}
1190		1351
		1352	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1353
		1354	Expand crossfire pod fragments into protocol xml.
		1355
		1356	=cut
		1357
		1358	sub expand_cfpod {
		1359	((my $self), (local $_)) = @_;
		1360
		1361	# escape & and <
		1362	s/&/&/g;
		1363	s/(?<![BIUGH])</</g;
		1364
		1365	# this is buggy, it needs to properly take care of nested <'s
		1366
		1367	1 while
		1368	# replace B<>, I<>, U<> etc.
		1369	s/B<([^\>]*)>/<b>$1<\/b>/
		1370	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1371	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1372	# replace G<male\|female> tags
		1373	\|\| s{G<([^>\|])\\|([^>])>}{
		1374	$self->gender ? $2 : $1
		1375	}ge
		1376	# replace H<hint text>
		1377	\|\| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1378
		1379	# create single paragraphs (very hackish)
		1380	s/(?<=\S)\n(?=\w)/ /g;
		1381
		1382	$_
		1383	}
		1384
1191	=item $player->ext_reply ($msgid, %msg)	1385	=item $player->ext_reply ($msgid, %msg)
1192		1386
1193	Sends an ext reply to the player.	1387	Sends an ext reply to the player.
1194		1388
1195	=cut	1389	=cut
…		…
1222		1416
1223	package cf::region;	1417	package cf::region;
1224		1418
1225	=item cf::region::find_by_path $path	1419	=item cf::region::find_by_path $path
1226		1420
1227	Tries to decuce the probable region for a map knowing only its path.	1421	Tries to decuce the likely region for a map knowing only its path.
1228		1422
1229	=cut	1423	=cut
1230		1424
1231	sub find_by_path($) {	1425	sub find_by_path($) {
1232	my ($path) = @_;	1426	my ($path) = @_;
…		…
1306	my ($self, $merge) = @_;	1500	my ($self, $merge) = @_;
1307		1501
1308	# we have to keep some variables in memory intact	1502	# we have to keep some variables in memory intact
1309	local $self->{path};	1503	local $self->{path};
1310	local $self->{load_path};	1504	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1505
1314	$self->SUPER::thawer_merge ($merge);	1506	$self->SUPER::thawer_merge ($merge);
1315	}	1507	}
1316		1508
1317	sub normalise {	1509	sub normalise {
…		…
1417		1609
1418	$_->change_map_light ($change)	1610	$_->change_map_light ($change)
1419	for grep $_->outdoor, values %cf::MAP;	1611	for grep $_->outdoor, values %cf::MAP;
1420	}	1612	}
1421		1613
		1614	sub decay_objects {
		1615	my ($self) = @_;
		1616
		1617	return if $self->{deny_reset};
		1618
		1619	$self->do_decay_objects;
		1620	}
		1621
1422	sub unlink_save {	1622	sub unlink_save {
1423	my ($self) = @_;	1623	my ($self) = @_;
1424		1624
1425	utf8::encode (my $save = $self->save_path);	1625	utf8::encode (my $save = $self->save_path);
1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1626	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1482	$self->load_header_orig	1682	$self->load_header_orig
1483	or return;	1683	or return;
1484	$self->prepare_orig;	1684	$self->prepare_orig;
1485	}	1685	}
1486		1686
		1687	$self->{deny_reset} = 1
		1688	if $self->no_reset;
		1689
1487	$self->default_region (cf::region::find_by_path $self->{path})	1690	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	1691	unless $self->default_region;
1489		1692
1490	1	1693	1
1491	}	1694	}
…		…
1506	$map->{last_save} = $cf::RUNTIME;	1709	$map->{last_save} = $cf::RUNTIME;
1507		1710
1508	$map->load_header	1711	$map->load_header
1509	or return;	1712	or return;
1510		1713
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1714	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	1715	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	1716	#$cf::WAIT_FOR_TICK->wait;
1514	$map->reset;	1717	$map->reset;
1515	undef $guard;	1718	undef $guard;
1516	return find $path;	1719	return find $path;
…		…
1583	my ($self, $ob) = @_;	1786	my ($self, $ob) = @_;
1584		1787
1585	return find "~" . $ob->name . "/" . $self->{path}	1788	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	1789	if $self->per_player;
1587		1790
		1791	# return find "?party/" . $ob->name . "/" . $self->{path}
		1792	# if $self->per_party;
		1793
1588	$self	1794	$self
1589	}	1795	}
1590		1796
1591	# find and load all maps in the 3x3 area around a map	1797	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	1798	sub load_diag {
…		…
1702		1908
1703	sub reset_at {	1909	sub reset_at {
1704	my ($self) = @_;	1910	my ($self) = @_;
1705		1911
1706	# TODO: safety, remove and allow resettable per-player maps	1912	# 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};	1913	return 1e99 if $self->{deny_reset};
1709		1914
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1915	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1916	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1712		1917
…		…
1723	my ($self) = @_;	1928	my ($self) = @_;
1724		1929
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	1930	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		1931
1727	return if $self->players;	1932	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		1933
1730	warn "resetting map ", $self->path;#d#	1934	warn "resetting map ", $self->path;
1731		1935
1732	$self->in_memory (cf::MAP_SWAPPED);	1936	$self->in_memory (cf::MAP_SWAPPED);
1733		1937
1734	# need to save uniques path	1938	# need to save uniques path
1735	unless ($self->{deny_save}) {	1939	unless ($self->{deny_save}) {
…		…
1767	$cf::MAP{$self->path} = $self;	1971	$cf::MAP{$self->path} = $self;
1768		1972
1769	$self->reset; # polite request, might not happen	1973	$self->reset; # polite request, might not happen
1770	}	1974	}
1771		1975
		1976	=item $maps = cf::map::tmp_maps
		1977
		1978	Returns an arrayref with all map paths of currently instantiated and saved
		1979	maps. May block.
		1980
		1981	=cut
		1982
		1983	sub tmp_maps() {
		1984	[
		1985	map {
		1986	utf8::decode $_;
		1987	/\.map$/
		1988	? normalise $_
		1989	: ()
		1990	} @{ aio_readdir $TMPDIR or [] }
		1991	]
		1992	}
		1993
		1994	=item $maps = cf::map::random_maps
		1995
		1996	Returns an arrayref with all map paths of currently instantiated and saved
		1997	random maps. May block.
		1998
		1999	=cut
		2000
		2001	sub random_maps() {
		2002	[
		2003	map {
		2004	utf8::decode $_;
		2005	/\.map$/
		2006	? normalise "?random/$_"
		2007	: ()
		2008	} @{ aio_readdir $RANDOMDIR or [] }
		2009	]
		2010	}
		2011
1772	=item cf::map::unique_maps	2012	=item cf::map::unique_maps
1773		2013
1774	Returns an arrayref of paths of all shared maps that have	2014	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2015	instantiated unique items. May block.
1776		2016
1777	=cut	2017	=cut
1778		2018
1779	sub unique_maps() {	2019	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2020	[
1781	or return;	2021	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2022	utf8::decode $_;
1787	next if /\.pst$/;	2023	/\.map$/
1788	next unless /^$PATH_SEP/o;	2024	? normalise $_
1789		2025	: ()
1790	push @paths, cf::map::normalise $_;	2026	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2027	]
1792
1793	\@paths
1794	}	2028	}
1795		2029
1796	package cf;	2030	package cf;
1797		2031
1798	=back	2032	=back
…		…
1844		2078
1845	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2079	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1846		2080
1847	if ($self->{record_replies}) {	2081	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2082	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2083
1849	} else {	2084	} else {
		2085	my $pl = $self->contr;
		2086
		2087	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2088	my $diag = $pl->{npc_dialog};
		2089	$diag->{pl}->ext_reply (
		2090	$diag->{id},
		2091	msgtype => "reply",
		2092	msg => $diag->{pl}->expand_cfpod ($msg),
		2093	add_topics => []
		2094	);
		2095
		2096	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2097	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2098	$self->message ($msg, $flags);
		2099	}
1852	}	2100	}
1853	}	2101	}
1854		2102
1855	=item $player_object->may ("access")	2103	=item $player_object->may ("access")
1856		2104
…		…
1904	$self->deactivate_recursive;	2152	$self->deactivate_recursive;
1905		2153
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2154	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2155
1908	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2156	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2157	if $self->map && $self->map->{path} ne "{link}";
1910		2158
1911	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2159	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1912	}	2160	}
1913		2161
1914	sub cf::object::player::leave_link {	2162	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2163	my ($self, $map, $x, $y) = @_;
		2164
		2165	return unless $self->contr->active;
1916		2166
1917	my $link_pos = delete $self->{_link_pos};	2167	my $link_pos = delete $self->{_link_pos};
1918		2168
1919	unless ($map) {	2169	unless ($map) {
1920	# restore original map position	2170	# restore original map position
…		…
1943		2193
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2194	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2195	$self->enter_map ($map, $x, $y);
1946	}	2196	}
1947		2197
1948	cf::player->attach (
1949	on_logout => sub {
1950	my ($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[, $check->($map)])	2198	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1981		2199
1982	Moves the player to the given map-path and coordinates by first freezing	2200	Moves the player to the given map-path and coordinates by first freezing
1983	her, loading and preparing them map, calling the provided $check callback	2201	her, loading and preparing them map, calling the provided $check callback
1984	that has to return the map if sucecssful, and then unfreezes the player on	2202	that has to return the map if sucecssful, and then unfreezes the player on
1985	the new (success) or old (failed) map position.	2203	the new (success) or old (failed) map position.
1986		2204
1987	=cut	2205	=cut
1988		2206
		2207	our $GOTOGEN;
		2208
1989	sub cf::object::player::goto {	2209	sub cf::object::player::goto {
1990	my ($self, $path, $x, $y, $check) = @_;	2210	my ($self, $path, $x, $y, $check) = @_;
1991		2211
1992	#d# #TODO#	2212	# do generation counting so two concurrent goto's will be executed in-order
1993	if ($check && !ref $check) {	2213	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1994	warn Carp::longmess "goto called with non-ref check argument";#d#
1995	undef $check;
1996	}
1997		2214
1998	$self->enter_link;	2215	$self->enter_link;
1999		2216
2000	(async {	2217	(async {
2001	my $map = eval {	2218	my $map = eval {
…		…
2014	if ($@) {	2231	if ($@) {
2015	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);	2232	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
2016	LOG llevError \| logBacktrace, Carp::longmess $@;	2233	LOG llevError \| logBacktrace, Carp::longmess $@;
2017	}	2234	}
2018		2235
		2236	if ($gen == $self->{_goto_generation}) {
		2237	delete $self->{_goto_generation};
2019	$self->leave_link ($map, $x, $y);	2238	$self->leave_link ($map, $x, $y);
		2239	}
2020	})->prio (1);	2240	})->prio (1);
2021	}	2241	}
2022		2242
2023	=item $player_object->enter_exit ($exit_object)	2243	=item $player_object->enter_exit ($exit_object)
2024		2244
…		…
2127	sub cf::client::send_drawinfo {	2347	sub cf::client::send_drawinfo {
2128	my ($self, $text, $flags) = @_;	2348	my ($self, $text, $flags) = @_;
2129		2349
2130	utf8::encode $text;	2350	utf8::encode $text;
2131	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2351	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
		2352	}
		2353
		2354	=item $client->send_msg ($color, $type, $msg, [extra...])
		2355
		2356	Send a drawinfo or msg packet to the client, formatting the msg for the
		2357	client if neccessary. C<$type> should be a string identifying the type of
		2358	the message, with C<log> being the default. If C<$color> is negative, suppress
		2359	the message unless the client supports the msg packet.
		2360
		2361	=cut
		2362
		2363	sub cf::client::send_msg {
		2364	my ($self, $color, $type, $msg, @extra) = @_;
		2365
		2366	$msg = $self->pl->expand_cfpod ($msg);
		2367
		2368	if ($self->can_msg) {
		2369	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2370	} else {
		2371	# replace some tags by gcfclient-compatible ones
		2372	for ($msg) {
		2373	1 while
		2374	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2375	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2376	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2377	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2378	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${1}[\/color]/;
		2379	}
		2380
		2381	if ($color >= 0) {
		2382	if (0 && $msg =~ /\[/) {
		2383	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2384	} else {
		2385	s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2386	$self->send_packet ("drawinfo $color $msg")
		2387	}
		2388	}
		2389	}
2132	}	2390	}
2133		2391
2134	=item $client->ext_event ($type, %msg)	2392	=item $client->ext_event ($type, %msg)
2135		2393
2136	Sends an exti event to the client.	2394	Sends an exti event to the client.
…		…
2338	=back	2596	=back
2339		2597
2340	=cut	2598	=cut
2341		2599
2342	#############################################################################	2600	#############################################################################
2343
2344	=head2 EXTENSION DATABASE SUPPORT
2345
2346	Crossfire maintains a very simple database for extension use. It can
2347	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2348	convert to/from binary).
2349
2350	The parameter C<$family> should best start with the name of the extension
2351	using it, it should be unique.
2352
2353	=over 4
2354
2355	=item $value = cf::db_get $family => $key
2356
2357	Returns a single value from the database.
2358
2359	=item cf::db_put $family => $key => $value
2360
2361	Stores the given C<$value> in the family.
2362
2363	=cut
2364
2365	our $DB;
2366
2367	sub db_init {
2368	unless ($DB) {
2369	$DB = BDB::db_create $DB_ENV;
2370
2371	cf::sync_job {
2372	eval {
2373	$DB->set_flags (BDB::CHKSUM);
2374
2375	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2376	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2377	cf::cleanup "db_open(db): $!" if $!;
2378	};
2379	cf::cleanup "db_open(db): $@" if $@;
2380	};
2381	}
2382	}
2383
2384	sub db_get($$) {
2385	my $key = "$_[0]/$_[1]";
2386
2387	cf::sync_job {
2388	BDB::db_get $DB, undef, $key, my $data;
2389
2390	$! ? ()
2391	: $data
2392	}
2393	}
2394
2395	sub db_put($$$) {
2396	BDB::dbreq_pri 4;
2397	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2398	}
2399
2400	=item cf::cache $id => [$paths...], $processversion => $process
2401
2402	Generic caching function that returns the value of the resource $id,
2403	caching and regenerating as required.
2404
2405	This function can block.
2406
2407	=cut
2408
2409	sub cache {
2410	my ($id, $src, $processversion, $process) = @_;
2411
2412	my $meta =
2413	join "\x00",
2414	$processversion,
2415	map {
2416	aio_stat $_
2417	and Carp::croak "$_: $!";
2418
2419	($_, (stat _)[7,9])
2420	} @$src;
2421
2422	my $dbmeta = db_get cache => "$id/meta";
2423	if ($dbmeta ne $meta) {
2424	# changed, we may need to process
2425
2426	my @data;
2427	my $md5;
2428
2429	for (0 .. $#$src) {
2430	0 <= aio_load $src->[$_], $data[$_]
2431	or Carp::croak "$src->[$_]: $!";
2432	}
2433
2434	# if processing is expensive, check
2435	# checksum first
2436	if (1) {
2437	$md5 =
2438	join "\x00",
2439	$processversion,
2440	map {
2441	Coro::cede;
2442	($src->[$_], Digest::MD5::md5_hex $data[$_])
2443	} 0.. $#$src;
2444
2445
2446	my $dbmd5 = db_get cache => "$id/md5";
2447	if ($dbmd5 eq $md5) {
2448	db_put cache => "$id/meta", $meta;
2449
2450	return db_get cache => "$id/data";
2451	}
2452	}
2453
2454	my $t1 = Time::HiRes::time;
2455	my $data = $process->(\@data);
2456	my $t2 = Time::HiRes::time;
2457
2458	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2459
2460	db_put cache => "$id/data", $data;
2461	db_put cache => "$id/md5" , $md5;
2462	db_put cache => "$id/meta", $meta;
2463
2464	return $data;
2465	}
2466
2467	db_get cache => "$id/data"
2468	}
2469
2470	=item fork_call { }, $args
2471
2472	Executes the given code block with the given arguments in a seperate
2473	process, returning the results. Everything must be serialisable with
2474	Coro::Storable. May, of course, block. Note that the executed sub may
2475	never block itself or use any form of Event handling.
2476
2477	=cut
2478
2479	sub fork_call(&@) {
2480	my ($cb, @args) = @_;
2481
2482	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2483	# or die "socketpair: $!";
2484	pipe my $fh1, my $fh2
2485	or die "pipe: $!";
2486
2487	if (my $pid = fork) {
2488	close $fh2;
2489
2490	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2491	$res = Coro::Storable::thaw $res;
2492
2493	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2494
2495	die $$res unless "ARRAY" eq ref $res;
2496
2497	return wantarray ? @$res : $res->[-1];
2498	} else {
2499	reset_signals;
2500	local $SIG{__WARN__};
2501	local $SIG{__DIE__};
2502	eval {
2503	close $fh1;
2504
2505	my @res = eval { $cb->(@args) };
2506	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2507	};
2508
2509	warn $@ if $@;
2510	_exit 0;
2511	}
2512	}
2513
2514
2515
2516	#############################################################################
2517	# the server's init and main functions	2601	# the server's init and main functions
2518		2602
2519	sub load_facedata($) {	2603	sub load_facedata($) {
2520	my ($path) = @_;	2604	my ($path) = @_;
2521		2605
…		…
2591	sub reload_resources {	2675	sub reload_resources {
2592	warn "reloading resource files...\n";	2676	warn "reloading resource files...\n";
2593		2677
2594	reload_regions;	2678	reload_regions;
2595	reload_facedata;	2679	reload_facedata;
		2680	#reload_archetypes;#d#
2596	reload_archetypes;	2681	reload_archetypes;
2597	reload_treasures;	2682	reload_treasures;
2598		2683
2599	warn "finished reloading resource files\n";	2684	warn "finished reloading resource files\n";
2600	}	2685	}
…		…
2655	cb => sub {	2740	cb => sub {
2656	cf::cleanup "SIG$signal";	2741	cf::cleanup "SIG$signal";
2657	},	2742	},
2658	);	2743	);
2659	}	2744	}
		2745	}
		2746
		2747	sub write_runtime {
		2748	my $runtime = "$LOCALDIR/runtime";
		2749
		2750	# first touch the runtime file to show we are still running:
		2751	# the fsync below can take a very very long time.
		2752
		2753	IO::AIO::aio_utime $runtime, undef, undef;
		2754
		2755	my $guard = cf::lock_acquire "write_runtime";
		2756
		2757	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2758	or return;
		2759
		2760	my $value = $cf::RUNTIME + 90 + 10;
		2761	# 10 is the runtime save interval, for a monotonic clock
		2762	# 60 allows for the watchdog to kill the server.
		2763
		2764	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2765	and return;
		2766
		2767	# always fsync - this file is important
		2768	aio_fsync $fh
		2769	and return;
		2770
		2771	# touch it again to show we are up-to-date
		2772	aio_utime $fh, undef, undef;
		2773
		2774	close $fh
		2775	or return;
		2776
		2777	aio_rename "$runtime~", $runtime
		2778	and return;
		2779
		2780	warn "runtime file written.\n";
		2781
		2782	1
2660	}	2783	}
2661		2784
2662	sub emergency_save() {	2785	sub emergency_save() {
2663	my $freeze_guard = cf::freeze_mainloop;	2786	my $freeze_guard = cf::freeze_mainloop;
2664		2787

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.268 by root, Tue May 22 10:50:00 2007 UTC vs. Revision 1.284 by root, Sun Jun 24 04:15:42 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.268 by root, Tue May 22 10:50:00 2007 UTC vs.
Revision 1.284 by root, Sun Jun 24 04:15:42 2007 UTC