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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.265 by root, Fri May 11 08:00:00 2007 UTC vs.
Revision 1.281 by root, Sat Jun 16 23:22:59 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.
…		…
356	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
357	}	361	}
358		362
359	$time = Event::time - $time;	363	$time = Event::time - $time;
360		364
361	LOG llevError \| logBacktrace, "long sync job\n"	365	LOG llevError \| logBacktrace, Carp::longmess "long sync job"
362	if $time > $TICK * 0.5;	366	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
363		367
364	$tick_start += $time; # do not account sync jobs to server load	368	$tick_start += $time; # do not account sync jobs to server load
365		369
366	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
367	} else {	371	} else {
…		…
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
…		…
627	$registry = $CB_TYPE[$object_type] \|\|= [];	751	$registry = $CB_TYPE[$object_type] \|\|= [];
628		752
629	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] \|\|= [];
633		757
634	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	759	my $pkg = shift @arg;
636		760
637	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
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
…		…
678	if (ref $_[0]) {	802	if (ref $_[0]) {
679	_object_attach @_;	803	_object_attach @_;
680	} else {	804	} else {
681	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
682	}	806	}
		807	_recalc_want;
683	};	808	};
684		809
685	# all those should be optimised	810	# all those should be optimised
686	sub cf::attachable::detach {	811	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
691	reattach ($obj);	816	reattach ($obj);
692	} else {	817	} else {
693	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
694	}	819	}
		820	_recalc_want;
695	};	821	};
696		822
697	sub cf::attachable::attached {	823	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
699		825
…		…
872	or return;	998	or return;
873	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
874	}	1000	}
875		1001
876	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
877	$filename, length $data, scalar @{$av \|\| []};#d#	1003	$filename, length $data, scalar @{$av \|\| []};
878	return ($data, $av);	1004	return ($data, $av);
879	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
880		1012
881	#############################################################################	1013	#############################################################################
882	# command handling &c	1014	# command handling &c
883		1015
884	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
897	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
898	}	1030	}
899		1031
900	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
901		1033
902	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.
903		1035
904	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
905	called.	1037	called.
906		1038
907	=cut	1039	=cut
…		…
942		1074
943	cf::override;	1075	cf::override;
944	},	1076	},
945	);	1077	);
946		1078
947	sub load_extension {
948	my ($path) = @_;
949
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
951	my $base = $1;
952	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "... loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	unless (eval $source) {
968	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
971	warn $@;
972	warn "mandatory extension failed to load, exiting.\n";
973	exit 1;
974	}
975	die $@;
976	}
977
978	push @EXTS, $pkg;
979	}
980
981	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
982	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
983	next unless -r $ext;	1084	next unless -r $path;
984	eval {	1085
985	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;
986	1	1143	}
987	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
988	}	1149	};
989	}	1150	}
990		1151
991	#############################################################################	1152	#############################################################################
		1153
		1154	=back
992		1155
993	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
994		1157
995	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
996		1159
…		…
1220		1383
1221	package cf::region;	1384	package cf::region;
1222		1385
1223	=item cf::region::find_by_path $path	1386	=item cf::region::find_by_path $path
1224		1387
1225	Tries to decuce the probable region for a map knowing only its path.	1388	Tries to decuce the likely region for a map knowing only its path.
1226		1389
1227	=cut	1390	=cut
1228		1391
1229	sub find_by_path($) {	1392	sub find_by_path($) {
1230	my ($path) = @_;	1393	my ($path) = @_;
…		…
1304	my ($self, $merge) = @_;	1467	my ($self, $merge) = @_;
1305		1468
1306	# we have to keep some variables in memory intact	1469	# we have to keep some variables in memory intact
1307	local $self->{path};	1470	local $self->{path};
1308	local $self->{load_path};	1471	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		1472
1312	$self->SUPER::thawer_merge ($merge);	1473	$self->SUPER::thawer_merge ($merge);
1313	}	1474	}
1314		1475
1315	sub normalise {	1476	sub normalise {
…		…
1415		1576
1416	$_->change_map_light ($change)	1577	$_->change_map_light ($change)
1417	for grep $_->outdoor, values %cf::MAP;	1578	for grep $_->outdoor, values %cf::MAP;
1418	}	1579	}
1419		1580
		1581	sub decay_objects {
		1582	my ($self) = @_;
		1583
		1584	return if $self->{deny_reset};
		1585
		1586	$self->do_decay_objects;
		1587	}
		1588
1420	sub unlink_save {	1589	sub unlink_save {
1421	my ($self) = @_;	1590	my ($self) = @_;
1422		1591
1423	utf8::encode (my $save = $self->save_path);	1592	utf8::encode (my $save = $self->save_path);
1424	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1593	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1480	$self->load_header_orig	1649	$self->load_header_orig
1481	or return;	1650	or return;
1482	$self->prepare_orig;	1651	$self->prepare_orig;
1483	}	1652	}
1484		1653
		1654	$self->{deny_reset} = 1
		1655	if $self->no_reset;
		1656
1485	$self->default_region (cf::region::find_by_path $self->{path})	1657	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	1658	unless $self->default_region;
1487		1659
1488	1	1660	1
1489	}	1661	}
…		…
1504	$map->{last_save} = $cf::RUNTIME;	1676	$map->{last_save} = $cf::RUNTIME;
1505		1677
1506	$map->load_header	1678	$map->load_header
1507	or return;	1679	or return;
1508		1680
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	1682	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	1683	#$cf::WAIT_FOR_TICK->wait;
1512	$map->reset;	1684	$map->reset;
1513	undef $guard;	1685	undef $guard;
1514	return find $path;	1686	return find $path;
…		…
1581	my ($self, $ob) = @_;	1753	my ($self, $ob) = @_;
1582		1754
1583	return find "~" . $ob->name . "/" . $self->{path}	1755	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	1756	if $self->per_player;
1585		1757
		1758	# return find "?party/" . $ob->name . "/" . $self->{path}
		1759	# if $self->per_party;
		1760
1586	$self	1761	$self
1587	}	1762	}
1588		1763
1589	# find and load all maps in the 3x3 area around a map	1764	# find and load all maps in the 3x3 area around a map
1590	sub load_diag {	1765	sub load_diag {
…		…
1700		1875
1701	sub reset_at {	1876	sub reset_at {
1702	my ($self) = @_;	1877	my ($self) = @_;
1703		1878
1704	# TODO: safety, remove and allow resettable per-player maps	1879	# TODO: safety, remove and allow resettable per-player maps
1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1706	return 1e99 if $self->{deny_reset};	1880	return 1e99 if $self->{deny_reset};
1707		1881
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1882	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1883	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1710		1884
…		…
1721	my ($self) = @_;	1895	my ($self) = @_;
1722		1896
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	1897	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		1898
1725	return if $self->players;	1899	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		1900
1728	warn "resetting map ", $self->path;#d#	1901	warn "resetting map ", $self->path;
1729		1902
1730	$self->in_memory (cf::MAP_SWAPPED);	1903	$self->in_memory (cf::MAP_SWAPPED);
1731		1904
1732	# need to save uniques path	1905	# need to save uniques path
1733	unless ($self->{deny_save}) {	1906	unless ($self->{deny_save}) {
…		…
1765	$cf::MAP{$self->path} = $self;	1938	$cf::MAP{$self->path} = $self;
1766		1939
1767	$self->reset; # polite request, might not happen	1940	$self->reset; # polite request, might not happen
1768	}	1941	}
1769		1942
		1943	=item $maps = cf::map::tmp_maps
		1944
		1945	Returns an arrayref with all map paths of currently instantiated and saved
		1946	maps. May block.
		1947
		1948	=cut
		1949
		1950	sub tmp_maps() {
		1951	[
		1952	map {
		1953	utf8::decode $_;
		1954	/\.map$/
		1955	? normalise $_
		1956	: ()
		1957	} @{ aio_readdir $TMPDIR or [] }
		1958	]
		1959	}
		1960
		1961	=item $maps = cf::map::random_maps
		1962
		1963	Returns an arrayref with all map paths of currently instantiated and saved
		1964	random maps. May block.
		1965
		1966	=cut
		1967
		1968	sub random_maps() {
		1969	[
		1970	map {
		1971	utf8::decode $_;
		1972	/\.map$/
		1973	? normalise "?random/$_"
		1974	: ()
		1975	} @{ aio_readdir $RANDOMDIR or [] }
		1976	]
		1977	}
		1978
1770	=item cf::map::unique_maps	1979	=item cf::map::unique_maps
1771		1980
1772	Returns an arrayref of paths of all shared maps that have	1981	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	1982	instantiated unique items. May block.
1774		1983
1775	=cut	1984	=cut
1776		1985
1777	sub unique_maps() {	1986	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	1987	[
1779	or return;	1988	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	1989	utf8::decode $_;
1785	next if /\.pst$/;	1990	/\.map$/
1786	next unless /^$PATH_SEP/o;	1991	? normalise $_
1787		1992	: ()
1788	push @paths, cf::map::normalise $_;	1993	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	1994	]
1790
1791	\@paths
1792	}	1995	}
1793		1996
1794	package cf;	1997	package cf;
1795		1998
1796	=back	1999	=back
…		…
1902	$self->deactivate_recursive;	2105	$self->deactivate_recursive;
1903		2106
1904	return if UNIVERSAL::isa $self->map, "ext::map_link";	2107	return if UNIVERSAL::isa $self->map, "ext::map_link";
1905		2108
1906	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2109	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1907	if $self->map;	2110	if $self->map && $self->map->{path} ne "{link}";
1908		2111
1909	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2112	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1910	}	2113	}
1911		2114
1912	sub cf::object::player::leave_link {	2115	sub cf::object::player::leave_link {
1913	my ($self, $map, $x, $y) = @_;	2116	my ($self, $map, $x, $y) = @_;
		2117
		2118	return unless $self->contr->active;
1914		2119
1915	my $link_pos = delete $self->{_link_pos};	2120	my $link_pos = delete $self->{_link_pos};
1916		2121
1917	unless ($map) {	2122	unless ($map) {
1918	# restore original map position	2123	# restore original map position
…		…
1941		2146
1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2147	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1943	$self->enter_map ($map, $x, $y);	2148	$self->enter_map ($map, $x, $y);
1944	}	2149	}
1945		2150
1946	cf::player->attach (
1947	on_logout => sub {
1948	my ($pl) = @_;
1949
1950	# abort map switching before logout
1951	if ($pl->ob->{_link_pos}) {
1952	cf::sync_job {
1953	$pl->ob->leave_link
1954	};
1955	}
1956	},
1957	on_login => sub {
1958	my ($pl) = @_;
1959
1960	# try to abort aborted map switching on player login :)
1961	# should happen only on crashes
1962	if ($pl->ob->{_link_pos}) {
1963	$pl->ob->enter_link;
1964	(async {
1965	$pl->ob->reply (undef,
1966	"There was an internal problem at your last logout, "
1967	. "the server will try to bring you to your intended destination in a second.",
1968	cf::NDI_RED);
1969	# we need this sleep as the login has a concurrent enter_exit running
1970	# and this sleep increases chances of the player not ending up in scorn
1971	Coro::Timer::sleep 1;
1972	$pl->ob->leave_link;
1973	})->prio (2);
1974	}
1975	},
1976	);
1977
1978	=item $player_object->goto ($path, $x, $y)	2151	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1979		2152
		2153	Moves the player to the given map-path and coordinates by first freezing
		2154	her, loading and preparing them map, calling the provided $check callback
		2155	that has to return the map if sucecssful, and then unfreezes the player on
		2156	the new (success) or old (failed) map position.
		2157
1980	=cut	2158	=cut
		2159
		2160	our $GOTOGEN;
1981		2161
1982	sub cf::object::player::goto {	2162	sub cf::object::player::goto {
1983	my ($self, $path, $x, $y) = @_;	2163	my ($self, $path, $x, $y, $check) = @_;
		2164
		2165	# do generation counting so two concurrent goto's will be executed in-order
		2166	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1984		2167
1985	$self->enter_link;	2168	$self->enter_link;
1986		2169
1987	(async {	2170	(async {
1988	my $map = eval {	2171	my $map = eval {
1989	my $map = cf::map::find $path;	2172	my $map = cf::map::find $path;
		2173
		2174	if ($map) {
1990	$map = $map->customise_for ($self) if $map;	2175	$map = $map->customise_for ($self);
		2176	$map = $check->($map) if $check && $map;
		2177	} else {
		2178	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		2179	}
		2180
1991	$map	2181	$map
		2182	};
		2183
		2184	if ($@) {
		2185	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
		2186	LOG llevError \| logBacktrace, Carp::longmess $@;
1992	} or	2187	}
1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
1994		2188
		2189	if ($gen == $self->{_goto_generation}) {
		2190	delete $self->{_goto_generation};
1995	$self->leave_link ($map, $x, $y);	2191	$self->leave_link ($map, $x, $y);
		2192	}
1996	})->prio (1);	2193	})->prio (1);
1997	}	2194	}
1998		2195
1999	=item $player_object->enter_exit ($exit_object)	2196	=item $player_object->enter_exit ($exit_object)
2000		2197
…		…
2314	=back	2511	=back
2315		2512
2316	=cut	2513	=cut
2317		2514
2318	#############################################################################	2515	#############################################################################
2319
2320	=head2 EXTENSION DATABASE SUPPORT
2321
2322	Crossfire maintains a very simple database for extension use. It can
2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2324	convert to/from binary).
2325
2326	The parameter C<$family> should best start with the name of the extension
2327	using it, it should be unique.
2328
2329	=over 4
2330
2331	=item $value = cf::db_get $family => $key
2332
2333	Returns a single value from the database.
2334
2335	=item cf::db_put $family => $key => $value
2336
2337	Stores the given C<$value> in the family.
2338
2339	=cut
2340
2341	our $DB;
2342
2343	sub db_init {
2344	unless ($DB) {
2345	$DB = BDB::db_create $DB_ENV;
2346
2347	cf::sync_job {
2348	eval {
2349	$DB->set_flags (BDB::CHKSUM);
2350
2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2352	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2353	cf::cleanup "db_open(db): $!" if $!;
2354	};
2355	cf::cleanup "db_open(db): $@" if $@;
2356	};
2357	}
2358	}
2359
2360	sub db_get($$) {
2361	my $key = "$_[0]/$_[1]";
2362
2363	cf::sync_job {
2364	BDB::db_get $DB, undef, $key, my $data;
2365
2366	$! ? ()
2367	: $data
2368	}
2369	}
2370
2371	sub db_put($$$) {
2372	BDB::dbreq_pri 4;
2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2374	}
2375
2376	=item cf::cache $id => [$paths...], $processversion => $process
2377
2378	Generic caching function that returns the value of the resource $id,
2379	caching and regenerating as required.
2380
2381	This function can block.
2382
2383	=cut
2384
2385	sub cache {
2386	my ($id, $src, $processversion, $process) = @_;
2387
2388	my $meta =
2389	join "\x00",
2390	$processversion,
2391	map {
2392	aio_stat $_
2393	and Carp::croak "$_: $!";
2394
2395	($_, (stat _)[7,9])
2396	} @$src;
2397
2398	my $dbmeta = db_get cache => "$id/meta";
2399	if ($dbmeta ne $meta) {
2400	# changed, we may need to process
2401
2402	my @data;
2403	my $md5;
2404
2405	for (0 .. $#$src) {
2406	0 <= aio_load $src->[$_], $data[$_]
2407	or Carp::croak "$src->[$_]: $!";
2408	}
2409
2410	# if processing is expensive, check
2411	# checksum first
2412	if (1) {
2413	$md5 =
2414	join "\x00",
2415	$processversion,
2416	map {
2417	Coro::cede;
2418	($src->[$_], Digest::MD5::md5_hex $data[$_])
2419	} 0.. $#$src;
2420
2421
2422	my $dbmd5 = db_get cache => "$id/md5";
2423	if ($dbmd5 eq $md5) {
2424	db_put cache => "$id/meta", $meta;
2425
2426	return db_get cache => "$id/data";
2427	}
2428	}
2429
2430	my $t1 = Time::HiRes::time;
2431	my $data = $process->(\@data);
2432	my $t2 = Time::HiRes::time;
2433
2434	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2435
2436	db_put cache => "$id/data", $data;
2437	db_put cache => "$id/md5" , $md5;
2438	db_put cache => "$id/meta", $meta;
2439
2440	return $data;
2441	}
2442
2443	db_get cache => "$id/data"
2444	}
2445
2446	=item fork_call { }, $args
2447
2448	Executes the given code block with the given arguments in a seperate
2449	process, returning the results. Everything must be serialisable with
2450	Coro::Storable. May, of course, block. Note that the executed sub may
2451	never block itself or use any form of Event handling.
2452
2453	=cut
2454
2455	sub fork_call(&@) {
2456	my ($cb, @args) = @_;
2457
2458	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2459	# or die "socketpair: $!";
2460	pipe my $fh1, my $fh2
2461	or die "pipe: $!";
2462
2463	if (my $pid = fork) {
2464	close $fh2;
2465
2466	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2467	$res = Coro::Storable::thaw $res;
2468
2469	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2470
2471	die $$res unless "ARRAY" eq ref $res;
2472
2473	return wantarray ? @$res : $res->[-1];
2474	} else {
2475	reset_signals;
2476	local $SIG{__WARN__};
2477	local $SIG{__DIE__};
2478	eval {
2479	close $fh1;
2480
2481	my @res = eval { $cb->(@args) };
2482	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2483	};
2484
2485	warn $@ if $@;
2486	_exit 0;
2487	}
2488	}
2489
2490
2491
2492	#############################################################################
2493	# the server's init and main functions	2516	# the server's init and main functions
2494		2517
2495	sub load_facedata($) {	2518	sub load_facedata($) {
2496	my ($path) = @_;	2519	my ($path) = @_;
2497		2520
…		…
2567	sub reload_resources {	2590	sub reload_resources {
2568	warn "reloading resource files...\n";	2591	warn "reloading resource files...\n";
2569		2592
2570	reload_regions;	2593	reload_regions;
2571	reload_facedata;	2594	reload_facedata;
		2595	#reload_archetypes;#d#
2572	reload_archetypes;	2596	reload_archetypes;
2573	reload_treasures;	2597	reload_treasures;
2574		2598
2575	warn "finished reloading resource files\n";	2599	warn "finished reloading resource files\n";
2576	}	2600	}
…		…
2633	},	2657	},
2634	);	2658	);
2635	}	2659	}
2636	}	2660	}
2637		2661
		2662	sub write_runtime {
		2663	my $runtime = "$LOCALDIR/runtime";
		2664
		2665	# first touch the runtime file to show we are still running:
		2666	# the fsync below can take a very very long time.
		2667
		2668	IO::AIO::aio_utime $runtime, undef, undef;
		2669
		2670	my $guard = cf::lock_acquire "write_runtime";
		2671
		2672	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2673	or return;
		2674
		2675	my $value = $cf::RUNTIME + 90 + 10;
		2676	# 10 is the runtime save interval, for a monotonic clock
		2677	# 60 allows for the watchdog to kill the server.
		2678
		2679	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2680	and return;
		2681
		2682	# always fsync - this file is important
		2683	aio_fsync $fh
		2684	and return;
		2685
		2686	# touch it again to show we are up-to-date
		2687	aio_utime $fh, undef, undef;
		2688
		2689	close $fh
		2690	or return;
		2691
		2692	aio_rename "$runtime~", $runtime
		2693	and return;
		2694
		2695	warn "runtime file written.\n";
		2696
		2697	1
		2698	}
		2699
2638	sub emergency_save() {	2700	sub emergency_save() {
2639	my $freeze_guard = cf::freeze_mainloop;	2701	my $freeze_guard = cf::freeze_mainloop;
2640		2702
2641	warn "enter emergency perl save\n";	2703	warn "enter emergency perl save\n";
2642		2704
…		…
2846	my $signal = new Coro::Signal;	2908	my $signal = new Coro::Signal;
2847	push @WAIT_FOR_TICK_BEGIN, $signal;	2909	push @WAIT_FOR_TICK_BEGIN, $signal;
2848	$signal->wait;	2910	$signal->wait;
2849	}	2911	}
2850		2912
		2913	my $min = 1e6;#d#
		2914	my $avg = 10;
2851	$TICK_WATCHER = Event->timer (	2915	$TICK_WATCHER = Event->timer (
2852	reentrant => 0,	2916	reentrant => 0,
2853	parked => 1,	2917	parked => 1,
2854	prio => 0,	2918	prio => 0,
2855	at => $NEXT_TICK \|\| $TICK,	2919	at => $NEXT_TICK \|\| $TICK,
…		…
2862	}	2926	}
2863		2927
2864	$NOW = $tick_start = Event::time;	2928	$NOW = $tick_start = Event::time;
2865		2929
2866	cf::server_tick; # one server iteration	2930	cf::server_tick; # one server iteration
		2931
		2932	0 && sync_job {#d#
		2933	for(1..10) {
		2934	my $t = Event::time;
		2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2936	or die;
		2937
		2938	$map->width (50);
		2939	$map->height (50);
		2940	$map->alloc;
		2941	$map->_load_objects ("/tmp/x.map", 1);
		2942	my $t = Event::time - $t;
		2943
		2944	#next unless $t < 0.0013;#d#
		2945	if ($t < $min) {
		2946	$min = $t;
		2947	}
		2948	$avg = $avg * 0.99 + $t * 0.01;
		2949	}
		2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2951	exit 0;
		2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2953	};
2867		2954
2868	$RUNTIME += $TICK;	2955	$RUNTIME += $TICK;
2869	$NEXT_TICK += $TICK;	2956	$NEXT_TICK += $TICK;
2870		2957
2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {	2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.265 by root, Fri May 11 08:00:00 2007 UTC vs. Revision 1.281 by root, Sat Jun 16 23:22:59 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.265 by root, Fri May 11 08:00:00 2007 UTC vs.
Revision 1.281 by root, Sat Jun 16 23:22:59 2007 UTC