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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 2007 UTC

…		…
49	our %COMMAND = ();	49	our %COMMAND = ();
50	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
51		51
52	our @EXTS = (); # list of extension package names	52	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	55	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	56	our %EXT_MAP = (); # pluggable maps
56		57
57	our $RELOAD; # number of reloads so far	58	our $RELOAD; # number of reloads so far
58	our @EVENT;	59	our @EVENT;
…		…
90	our $LINK_MAP; # the special {link} map, which is always available	91	our $LINK_MAP; # the special {link} map, which is always available
91		92
92	# used to convert map paths into valid unix filenames by replacing / by ∕	93	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		95
		96	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		97	our $LOADAVG; # same thing, but with alpha-smoothing
		98	our $tick_start; # for load detecting purposes
		99
95	binmode STDOUT;	100	binmode STDOUT;
96	binmode STDERR;	101	binmode STDERR;
97		102
98	# read virtual server time, if available	103	# read virtual server time, if available
99	unless ($RUNTIME \|\| !-e "$LOCALDIR/runtime") {	104	unless ($RUNTIME \|\| !-e "$LOCALDIR/runtime") {
…		…
139		144
140	=item $cf::TICK	145	=item $cf::TICK
141		146
142	The interval between server ticks, in seconds.	147	The interval between server ticks, in seconds.
143		148
		149	=item $cf::LOADAVG
		150
		151	The current CPU load on the server (alpha-smoothed), as a value between 0
		152	(none) and 1 (overloaded), indicating how much time is spent on processing
		153	objects per tick. Healthy values are < 0.5.
		154
		155	=item $cf::LOAD
		156
		157	The raw value load value from the last tick.
		158
144	=item %cf::CFG	159	=item %cf::CFG
145		160
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
147	from wherever your confdir points to.	162	from wherever your confdir points to.
148		163
…		…
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		195
180	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	197	# within the Safe compartment.
182	for my $pkg (qw(	198	for my $pkg (qw(
183	cf::global cf::attachable	199	cf::global cf::attachable
…		…
191	}	207	}
192		208
193	$Event::DIED = sub {	209	$Event::DIED = sub {
194	warn "error in event callback: @_";	210	warn "error in event callback: @_";
195	};	211	};
		212
		213	#############################################################################
196		214
197	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
198		216
199	=over 4	217	=over 4
200		218
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	238	$d
221	} \|\| "[unable to dump $_[0]: '$@']";	239	} \|\| "[unable to dump $_[0]: '$@']";
222	}	240	}
223		241
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	242	use JSON::XS ();
225		243
226	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
227		245
228	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
229		247
230	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
231		249
232	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
		251
		252	=cut
		253
		254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
		255
		256	sub to_json ($) { $json_coder->encode ($_[0]) }
		257	sub from_json ($) { $json_coder->decode ($_[0]) }
233		258
234	=item cf::lock_wait $string	259	=item cf::lock_wait $string
235		260
236	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
237		262
…		…
303		328
304	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
305		330
306	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
307		332
308	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
311		337
312	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
315	fast or be very important.	341	fast or be very important.
…		…
318		344
319	sub sync_job(&) {	345	sub sync_job(&) {
320	my ($job) = @_;	346	my ($job) = @_;
321		347
322	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
323	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
325		353
326	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
327	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
338		366
339	while ($busy) {	367	while ($busy) {
340	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
341	}	369	}
342		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError \| logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
		377
343	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
344	} else {	379	} else {
345	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
346		381
347	$job->()	382	$job->()
…		…
366	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
367		402
368	$coro	403	$coro
369	}	404	}
370		405
371	sub write_runtime {	406	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		407
374	my $runtime = "$LOCALDIR/runtime";	408	Executes the given code block with the given arguments in a seperate
		409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
375		412
376	warn "starting to write runtime...\n";#d#	413	=cut
377	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
378	or return;
379		414
380	my $value = $cf::RUNTIME + 90 + 10;	415	sub fork_call(&@) {
381	# 10 is the runtime save interval, for a monotonic clock	416	my ($cb, @args) = @_;
382	# 60 allows for the watchdog to kill the server.
383		417
384	(aio_write $fh, 0, (length $value), $value, 0) <= 0	418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
385	and return;	419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
386		422
387	# always fsync - this file is important	423	if (my $pid = fork) {
388	aio_fsync $fh
389	and return;
390
391	close $fh	424	close $fh2;
392	or return;
393		425
394	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
395	and return;	427	$res = Coro::Storable::thaw $res;
396		428
397	warn "... done writing runtime.\n";#d#	429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
398		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
399	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
400	}	564	}
401		565
402	=item cf::datalog type => key => value, ...	566	=item cf::datalog type => key => value, ...
403		567
404	Log a datalog packet of the given type with the given key-value pairs.	568	Log a datalog packet of the given type with the given key-value pairs.
…		…
422	attach callbacks/event handlers (a collection of which is called an "attachment")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
423	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
424		588
425	In the following description, CLASS can be any of C<global>, C<object>	589	In the following description, CLASS can be any of C<global>, C<object>
426	C<player>, C<client> or C<map> (i.e. the attachable objects in	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
427	crossfire+).	591	Crossfire TRT).
428		592
429	=over 4	593	=over 4
430		594
431	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
432		596
…		…
595	$registry = $CB_TYPE[$object_type] \|\|= [];	759	$registry = $CB_TYPE[$object_type] \|\|= [];
596		760
597	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
598	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
599	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
600	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] \|\|= [];
601		765
602	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
603	my $pkg = shift @arg;	767	my $pkg = shift @arg;
604		768
605	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
634	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
635	}	799	}
636		800
637	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
638	} else {	802	} else {
639	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
640	}	804	}
641		805
642	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
643	}	807	}
644		808
…		…
646	if (ref $_[0]) {	810	if (ref $_[0]) {
647	_object_attach @_;	811	_object_attach @_;
648	} else {	812	} else {
649	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
650	}	814	}
		815	_recalc_want;
651	};	816	};
652		817
653	# all those should be optimised	818	# all those should be optimised
654	sub cf::attachable::detach {	819	sub cf::attachable::detach {
655	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
658	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
659	reattach ($obj);	824	reattach ($obj);
660	} else {	825	} else {
661	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
662	}	827	}
		828	_recalc_want;
663	};	829	};
664		830
665	sub cf::attachable::attached {	831	sub cf::attachable::attached {
666	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
667		833
…		…
840	or return;	1006	or return;
841	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
842	}	1008	}
843		1009
844	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
845	$filename, length $data, scalar @{$av \|\| []};#d#	1011	$filename, length $data, scalar @{$av \|\| []};
846	return ($data, $av);	1012	return ($data, $av);
847	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
848		1020
849	#############################################################################	1021	#############################################################################
850	# command handling &c	1022	# command handling &c
851		1023
852	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
865	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
866	}	1038	}
867		1039
868	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
869		1041
870	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
871		1047
872	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
873	called.	1049	called.
874		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
875	=cut	1062	=cut
876		1063
877	sub register_extcmd {	1064	sub register_extcmd {
878	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
879		1066
880	$EXTCMD{$name} = $cb;	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
881	}	1074	}
882		1075
883	cf::player->attach (	1076	cf::player->attach (
884	on_command => sub {	1077	on_command => sub {
885	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
910		1103
911	cf::override;	1104	cf::override;
912	},	1105	},
913	);	1106	);
914		1107
915	sub load_extension {
916	my ($path) = @_;
917
918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
919	my $base = $1;
920	my $pkg = $1;
921	$pkg =~ s/[^[:word:]]/_/g;
922	$pkg = "ext::$pkg";
923
924	warn "... loading '$path' into '$pkg'\n";
925
926	open my $fh, "<:utf8", $path
927	or die "$path: $!";
928
929	my $source =
930	"package $pkg; use strict; use utf8;\n"
931	. "#line 1 \"$path\"\n{\n"
932	. (do { local $/; <$fh> })
933	. "\n};\n1";
934
935	unless (eval $source) {
936	my $msg = $@ ? "$path: $@\n"
937	: "extension disabled.\n";
938	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
939	warn $@;
940	warn "mandatory extension failed to load, exiting.\n";
941	exit 1;
942	}
943	die $@;
944	}
945
946	push @EXTS, $pkg;
947	}
948
949	sub load_extensions {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
950	for my $ext (<$LIBDIR/*.ext>) {	1112	for my $path (<$LIBDIR/*.ext>) {
951	next unless -r $ext;	1113	next unless -r $path;
952	eval {	1114
953	load_extension $ext;	1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
954	1	1172	}
955	} or warn "$ext not loaded: $@";	1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
956	}	1178	};
957	}	1179	}
958		1180
959	#############################################################################	1181	#############################################################################
		1182
		1183	=back
960		1184
961	=head2 CORE EXTENSIONS	1185	=head2 CORE EXTENSIONS
962		1186
963	Functions and methods that extend core crossfire objects.	1187	Functions and methods that extend core crossfire objects.
964		1188
…		…
1152	}	1376	}
1153		1377
1154	\@paths	1378	\@paths
1155	}	1379	}
1156		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&/g;
		1392	s/(?<![BIUGH])</</g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male\|female> tags
		1402	\|\| s{G<([^>\|])\\|([^>])>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	\|\| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
1157	=item $player->ext_reply ($msgid, %msg)	1414	=item $player->ext_reply ($msgid, %msg)
1158		1415
1159	Sends an ext reply to the player.	1416	Sends an ext reply to the player.
1160		1417
1161	=cut	1418	=cut
1162		1419
1163	sub ext_reply($$%) {	1420	sub ext_reply($$%) {
1164	my ($self, $id, %msg) = @_;	1421	my ($self, $id, %msg) = @_;
1165		1422
1166	$msg{msgid} = $id;	1423	$msg{msgid} = $id;
1167
1168	$self->send ("ext " . cf::to_json \%msg);	1424	$self->send ("ext " . cf::to_json \%msg);
1169	}	1425	}
1170		1426
1171	=item $player->ext_event ($type, %msg)	1427	=item $player->ext_event ($type, %msg)
1172		1428
…		…
1188		1444
1189	package cf::region;	1445	package cf::region;
1190		1446
1191	=item cf::region::find_by_path $path	1447	=item cf::region::find_by_path $path
1192		1448
1193	Tries to decuce the probable region for a map knowing only its path.	1449	Tries to decuce the likely region for a map knowing only its path.
1194		1450
1195	=cut	1451	=cut
1196		1452
1197	sub find_by_path($) {	1453	sub find_by_path($) {
1198	my ($path) = @_;	1454	my ($path) = @_;
…		…
1272	my ($self, $merge) = @_;	1528	my ($self, $merge) = @_;
1273		1529
1274	# we have to keep some variables in memory intact	1530	# we have to keep some variables in memory intact
1275	local $self->{path};	1531	local $self->{path};
1276	local $self->{load_path};	1532	local $self->{load_path};
1277	local $self->{deny_save};
1278	local $self->{deny_reset};
1279		1533
1280	$self->SUPER::thawer_merge ($merge);	1534	$self->SUPER::thawer_merge ($merge);
1281	}	1535	}
1282		1536
1283	sub normalise {	1537	sub normalise {
…		…
1383		1637
1384	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1385	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
1386	}	1640	}
1387		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
		1648	}
		1649
1388	sub unlink_save {	1650	sub unlink_save {
1389	my ($self) = @_;	1651	my ($self) = @_;
1390		1652
1391	utf8::encode (my $save = $self->save_path);	1653	utf8::encode (my $save = $self->save_path);
1392	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1448	$self->load_header_orig	1710	$self->load_header_orig
1449	or return;	1711	or return;
1450	$self->prepare_orig;	1712	$self->prepare_orig;
1451	}	1713	}
1452		1714
		1715	$self->{deny_reset} = 1
		1716	if $self->no_reset;
		1717
1453	$self->default_region (cf::region::find_by_path $self->{path})	1718	$self->default_region (cf::region::find_by_path $self->{path})
1454	unless $self->default_region;	1719	unless $self->default_region;
1455		1720
1456	1	1721	1
1457	}	1722	}
…		…
1472	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1473		1738
1474	$map->load_header	1739	$map->load_header
1475	or return;	1740	or return;
1476		1741
1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1478	# doing this can freeze the server in a sync job, obviously	1743	# doing this can freeze the server in a sync job, obviously
1479	#$cf::WAIT_FOR_TICK->wait;	1744	#$cf::WAIT_FOR_TICK->wait;
1480	$map->reset;	1745	$map->reset;
1481	undef $guard;	1746	undef $guard;
1482	return find $path;	1747	return find $path;
…		…
1549	my ($self, $ob) = @_;	1814	my ($self, $ob) = @_;
1550		1815
1551	return find "~" . $ob->name . "/" . $self->{path}	1816	return find "~" . $ob->name . "/" . $self->{path}
1552	if $self->per_player;	1817	if $self->per_player;
1553		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
		1821
1554	$self	1822	$self
1555	}	1823	}
1556		1824
1557	# find and load all maps in the 3x3 area around a map	1825	# find and load all maps in the 3x3 area around a map
1558	sub load_diag {	1826	sub load_diag {
…		…
1668		1936
1669	sub reset_at {	1937	sub reset_at {
1670	my ($self) = @_;	1938	my ($self) = @_;
1671		1939
1672	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1674	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1675		1942
1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1678		1945
…		…
1689	my ($self) = @_;	1956	my ($self) = @_;
1690		1957
1691	my $lock = cf::lock_acquire "map_data:$self->{path}";	1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		1959
1693	return if $self->players;	1960	return if $self->players;
1694	return if $self->isa ("ext::map_per_player");#d#
1695		1961
1696	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
1697		1963
1698	$self->in_memory (cf::MAP_SWAPPED);	1964	$self->in_memory (cf::MAP_SWAPPED);
1699		1965
1700	# need to save uniques path	1966	# need to save uniques path
1701	unless ($self->{deny_save}) {	1967	unless ($self->{deny_save}) {
…		…
1733	$cf::MAP{$self->path} = $self;	1999	$cf::MAP{$self->path} = $self;
1734		2000
1735	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1736	}	2002	}
1737		2003
		2004	=item $maps = cf::map::tmp_maps
		2005
		2006	Returns an arrayref with all map paths of currently instantiated and saved
		2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
		2012	[
		2013	map {
		2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
		2020	}
		2021
		2022	=item $maps = cf::map::random_maps
		2023
		2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
		2026
		2027	=cut
		2028
		2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
		2038	}
		2039
1738	=item cf::map::unique_maps	2040	=item cf::map::unique_maps
1739		2041
1740	Returns an arrayref of paths of all shared maps that have	2042	Returns an arrayref of paths of all shared maps that have
1741	instantiated unique items. May block.	2043	instantiated unique items. May block.
1742		2044
1743	=cut	2045	=cut
1744		2046
1745	sub unique_maps() {	2047	sub unique_maps() {
1746	my $files = aio_readdir $UNIQUEDIR	2048	[
1747	or return;	2049	map {
1748
1749	my @paths;
1750
1751	for (@$files) {
1752	utf8::decode $_;	2050	utf8::decode $_;
1753	next if /\.pst$/;	2051	/\.map$/
1754	next unless /^$PATH_SEP/o;	2052	? normalise $_
1755		2053	: ()
1756	push @paths, cf::map::normalise $_;	2054	} @{ aio_readdir $UNIQUEDIR or [] }
1757	}	2055	]
1758
1759	\@paths
1760	}	2056	}
1761		2057
1762	package cf;	2058	package cf;
1763		2059
1764	=back	2060	=back
…		…
1810		2106
1811	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1812		2108
1813	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1814	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1815	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1816	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1817	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1818	}	2128	}
1819	}	2129	}
1820		2130
1821	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1822		2132
…		…
1870	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1871		2181
1872	return if UNIVERSAL::isa $self->map, "ext::map_link";	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1873		2183
1874	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1875	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1876		2186
1877	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2187	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1878	}	2188	}
1879		2189
1880	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1881	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1882		2194
1883	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1884		2196
1885	unless ($map) {	2197	unless ($map) {
1886	# restore original map position	2198	# restore original map position
…		…
1909		2221
1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1911	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1912	}	2224	}
1913		2225
1914	cf::player->attach (
1915	on_logout => sub {
1916	my ($pl) = @_;
1917
1918	# abort map switching before logout
1919	if ($pl->ob->{_link_pos}) {
1920	cf::sync_job {
1921	$pl->ob->leave_link
1922	};
1923	}
1924	},
1925	on_login => sub {
1926	my ($pl) = @_;
1927
1928	# try to abort aborted map switching on player login :)
1929	# should happen only on crashes
1930	if ($pl->ob->{_link_pos}) {
1931	$pl->ob->enter_link;
1932	(async {
1933	$pl->ob->reply (undef,
1934	"There was an internal problem at your last logout, "
1935	. "the server will try to bring you to your intended destination in a second.",
1936	cf::NDI_RED);
1937	# we need this sleep as the login has a concurrent enter_exit running
1938	# and this sleep increases chances of the player not ending up in scorn
1939	Coro::Timer::sleep 1;
1940	$pl->ob->leave_link;
1941	})->prio (2);
1942	}
1943	},
1944	);
1945
1946	=item $player_object->goto ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1947		2227
		2228	Moves the player to the given map-path and coordinates by first freezing
		2229	her, loading and preparing them map, calling the provided $check callback
		2230	that has to return the map if sucecssful, and then unfreezes the player on
		2231	the new (success) or old (failed) map position.
		2232
1948	=cut	2233	=cut
		2234
		2235	our $GOTOGEN;
1949		2236
1950	sub cf::object::player::goto {	2237	sub cf::object::player::goto {
1951	my ($self, $path, $x, $y) = @_;	2238	my ($self, $path, $x, $y, $check) = @_;
		2239
		2240	# do generation counting so two concurrent goto's will be executed in-order
		2241	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1952		2242
1953	$self->enter_link;	2243	$self->enter_link;
1954		2244
1955	(async {	2245	(async {
1956	my $map = eval {	2246	my $map = eval {
1957	my $map = cf::map::find $path;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1958	$map = $map->customise_for ($self) if $map;	2250	$map = $map->customise_for ($self);
		2251	$map = $check->($map) if $check && $map;
		2252	} else {
		2253	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		2254	}
		2255
1959	$map	2256	$map
		2257	};
		2258
		2259	if ($@) {
		2260	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
		2261	LOG llevError \| logBacktrace, Carp::longmess $@;
1960	} or	2262	}
1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
1962		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1963	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1964	})->prio (1);	2268	})->prio (1);
1965	}	2269	}
1966		2270
1967	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1968		2272
…		…
2073		2377
2074	utf8::encode $text;	2378	utf8::encode $text;
2075	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2076	}	2380	}
2077		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
2078	=item $client->ext_event ($type, %msg)	2420	=item $client->ext_event ($type, %msg)
2079		2421
2080	Sends an exti event to the client.	2422	Sends an ext event to the client.
2081		2423
2082	=cut	2424	=cut
2083		2425
2084	sub cf::client::ext_event($$%) {	2426	sub cf::client::ext_event($$%) {
2085	my ($self, $type, %msg) = @_;	2427	my ($self, $type, %msg) = @_;
…		…
2092		2434
2093	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
2094	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2095	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2096		2438
2097	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
2098	reliable at some point in the future.	2440	become reliable at some point in the future.
2099		2441
2100	=cut	2442	=cut
2101		2443
2102	sub cf::client::query {	2444	sub cf::client::query {
2103	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
2111	utf8::encode $text;	2453	utf8::encode $text;
2112	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2113		2455
2114	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
2115	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
2116	}	2460	}
2117		2461
2118	cf::client->attach (	2462	cf::client->attach (
2119	on_reply => sub {	2463	on_reply => sub {
2120	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
2134	$ns->send_packet ($ns->{query_queue}[0][0]);	2478	$ns->send_packet ($ns->{query_queue}[0][0]);
2135	} else {	2479	} else {
2136	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2137	}	2481	}
2138	}	2482	}
		2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
2139	},	2501	},
2140	);	2502	);
2141		2503
2142	=item $client->async (\&cb)	2504	=item $client->async (\&cb)
2143		2505
…		…
2282	=back	2644	=back
2283		2645
2284	=cut	2646	=cut
2285		2647
2286	#############################################################################	2648	#############################################################################
2287
2288	=head2 EXTENSION DATABASE SUPPORT
2289
2290	Crossfire maintains a very simple database for extension use. It can
2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2292	convert to/from binary).
2293
2294	The parameter C<$family> should best start with the name of the extension
2295	using it, it should be unique.
2296
2297	=over 4
2298
2299	=item $value = cf::db_get $family => $key
2300
2301	Returns a single value from the database.
2302
2303	=item cf::db_put $family => $key => $value
2304
2305	Stores the given C<$value> in the family.
2306
2307	=cut
2308
2309	our $DB;
2310
2311	sub db_init {
2312	unless ($DB) {
2313	$DB = BDB::db_create $DB_ENV;
2314
2315	cf::sync_job {
2316	eval {
2317	$DB->set_flags (BDB::CHKSUM);
2318
2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2320	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2321	cf::cleanup "db_open(db): $!" if $!;
2322	};
2323	cf::cleanup "db_open(db): $@" if $@;
2324	};
2325	}
2326	}
2327
2328	sub db_get($$) {
2329	my $key = "$_[0]/$_[1]";
2330
2331	cf::sync_job {
2332	BDB::db_get $DB, undef, $key, my $data;
2333
2334	$! ? ()
2335	: $data
2336	}
2337	}
2338
2339	sub db_put($$$) {
2340	BDB::dbreq_pri 4;
2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2342	}
2343
2344	=item cf::cache $id => [$paths...], $processversion => $process
2345
2346	Generic caching function that returns the value of the resource $id,
2347	caching and regenerating as required.
2348
2349	This function can block.
2350
2351	=cut
2352
2353	sub cache {
2354	my ($id, $src, $processversion, $process) = @_;
2355
2356	my $meta =
2357	join "\x00",
2358	$processversion,
2359	map {
2360	aio_stat $_
2361	and Carp::croak "$_: $!";
2362
2363	($_, (stat _)[7,9])
2364	} @$src;
2365
2366	my $dbmeta = db_get cache => "$id/meta";
2367	if ($dbmeta ne $meta) {
2368	# changed, we may need to process
2369
2370	my @data;
2371	my $md5;
2372
2373	for (0 .. $#$src) {
2374	0 <= aio_load $src->[$_], $data[$_]
2375	or Carp::croak "$src->[$_]: $!";
2376	}
2377
2378	# if processing is expensive, check
2379	# checksum first
2380	if (1) {
2381	$md5 =
2382	join "\x00",
2383	$processversion,
2384	map {
2385	Coro::cede;
2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
2387	} 0.. $#$src;
2388
2389
2390	my $dbmd5 = db_get cache => "$id/md5";
2391	if ($dbmd5 eq $md5) {
2392	db_put cache => "$id/meta", $meta;
2393
2394	return db_get cache => "$id/data";
2395	}
2396	}
2397
2398	my $t1 = Time::HiRes::time;
2399	my $data = $process->(\@data);
2400	my $t2 = Time::HiRes::time;
2401
2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2403
2404	db_put cache => "$id/data", $data;
2405	db_put cache => "$id/md5" , $md5;
2406	db_put cache => "$id/meta", $meta;
2407
2408	return $data;
2409	}
2410
2411	db_get cache => "$id/data"
2412	}
2413
2414	=item fork_call { }, $args
2415
2416	Executes the given code block with the given arguments in a seperate
2417	process, returning the results. Everything must be serialisable with
2418	Coro::Storable. May, of course, block. Note that the executed sub may
2419	never block itself or use any form of Event handling.
2420
2421	=cut
2422
2423	sub fork_call(&@) {
2424	my ($cb, @args) = @_;
2425
2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2427	# or die "socketpair: $!";
2428	pipe my $fh1, my $fh2
2429	or die "pipe: $!";
2430
2431	if (my $pid = fork) {
2432	close $fh2;
2433
2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2435	$res = Coro::Storable::thaw $res;
2436
2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2438
2439	die $$res unless "ARRAY" eq ref $res;
2440
2441	return wantarray ? @$res : $res->[-1];
2442	} else {
2443	reset_signals;
2444	local $SIG{__WARN__};
2445	local $SIG{__DIE__};
2446	eval {
2447	close $fh1;
2448
2449	my @res = eval { $cb->(@args) };
2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2451	};
2452
2453	warn $@ if $@;
2454	_exit 0;
2455	}
2456	}
2457
2458
2459
2460	#############################################################################
2461	# the server's init and main functions	2649	# the server's init and main functions
2462		2650
2463	sub load_facedata($) {	2651	sub load_facedata($) {
2464	my ($path) = @_;	2652	my ($path) = @_;
2465		2653
…		…
2535	sub reload_resources {	2723	sub reload_resources {
2536	warn "reloading resource files...\n";	2724	warn "reloading resource files...\n";
2537		2725
2538	reload_regions;	2726	reload_regions;
2539	reload_facedata;	2727	reload_facedata;
		2728	#reload_archetypes;#d#
2540	reload_archetypes;	2729	reload_archetypes;
2541	reload_treasures;	2730	reload_treasures;
2542		2731
2543	warn "finished reloading resource files\n";	2732	warn "finished reloading resource files\n";
2544	}	2733	}
…		…
2601	},	2790	},
2602	);	2791	);
2603	}	2792	}
2604	}	2793	}
2605		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
		2831	}
		2832
2606	sub emergency_save() {	2833	sub emergency_save() {
2607	my $freeze_guard = cf::freeze_mainloop;	2834	my $freeze_guard = cf::freeze_mainloop;
2608		2835
2609	warn "enter emergency perl save\n";	2836	warn "enter emergency perl save\n";
2610		2837
…		…
2685	%EXT_CORO = ();	2912	%EXT_CORO = ();
2686		2913
2687	warn "removing commands";	2914	warn "removing commands";
2688	%COMMAND = ();	2915	%COMMAND = ();
2689		2916
2690	warn "removing ext commands";	2917	warn "removing ext/exti commands";
2691	%EXTCMD = ();	2918	%EXTCMD = ();
		2919	%EXTICMD = ();
2692		2920
2693	warn "unloading/nuking all extensions";	2921	warn "unloading/nuking all extensions";
2694	for my $pkg (@EXTS) {	2922	for my $pkg (@EXTS) {
2695	warn "... unloading $pkg";	2923	warn "... unloading $pkg";
2696		2924
…		…
2814	my $signal = new Coro::Signal;	3042	my $signal = new Coro::Signal;
2815	push @WAIT_FOR_TICK_BEGIN, $signal;	3043	push @WAIT_FOR_TICK_BEGIN, $signal;
2816	$signal->wait;	3044	$signal->wait;
2817	}	3045	}
2818		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2819	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2820	reentrant => 0,	3050	reentrant => 0,
2821	parked => 1,	3051	parked => 1,
2822	prio => 0,	3052	prio => 0,
2823	at => $NEXT_TICK \|\| $TICK,	3053	at => $NEXT_TICK \|\| $TICK,
…		…
2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2828	unless ++$bug_warning > 10;	3058	unless ++$bug_warning > 10;
2829	return;	3059	return;
2830	}	3060	}
2831		3061
2832	$NOW = Event::time;	3062	$NOW = $tick_start = Event::time;
2833		3063
2834	cf::server_tick; # one server iteration	3064	cf::server_tick; # one server iteration
		3065
		3066	0 && sync_job {#d#
		3067	for(1..10) {
		3068	my $t = Event::time;
		3069	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3070	or die;
		3071
		3072	$map->width (50);
		3073	$map->height (50);
		3074	$map->alloc;
		3075	$map->_load_objects ("/tmp/x.map", 1);
		3076	my $t = Event::time - $t;
		3077
		3078	#next unless $t < 0.0013;#d#
		3079	if ($t < $min) {
		3080	$min = $t;
		3081	}
		3082	$avg = $avg * 0.99 + $t * 0.01;
		3083	}
		3084	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3085	exit 0;
		3086	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3087	};
2835		3088
2836	$RUNTIME += $TICK;	3089	$RUNTIME += $TICK;
2837	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2838		3091
2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2845	}	3098	}
2846		3099
2847	# my $AFTER = Event::time;	3100	# my $AFTER = Event::time;
2848	# warn $AFTER - $NOW;#d#	3101	# warn $AFTER - $NOW;#d#
2849		3102
		3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3104	$sig->send;
		3105	}
		3106	while (my $sig = shift @WAIT_FOR_TICK) {
		3107	$sig->send;
		3108	}
		3109
		3110	$NOW = Event::time;
		3111
2850	# if we are delayed by four ticks or more, skip them all	3112	# if we are delayed by four ticks or more, skip them all
2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2852		3114
2853	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2854	$TICK_WATCHER->start;	3116	$TICK_WATCHER->start;
2855		3117
2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3118	$LOAD = ($NOW - $tick_start) / $TICK;
2857	$sig->send;	3119	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2858	}
2859	while (my $sig = shift @WAIT_FOR_TICK) {
2860	$sig->send;
2861	}
2862		3120
2863	_post_tick;	3121	_post_tick;
		3122
		3123
2864	},	3124	},
2865	);	3125	);
2866		3126
2867	{	3127	{
2868	BDB::max_poll_time $TICK * 0.1;	3128	BDB::max_poll_time $TICK * 0.1;

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC vs. Revision 1.287 by root, Mon Jun 25 05:43:45 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 2007 UTC