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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.300 by root, Tue Jul 10 06:44:29 2007 UTC

…		…
20	use Coro::Signal;	20	use Coro::Signal;
21	use Coro::Semaphore;	21	use Coro::Semaphore;
22	use Coro::AIO;	22	use Coro::AIO;
23	use Coro::Storable;	23	use Coro::Storable;
24		24
		25	use JSON::XS 1.4 ();
25	use BDB ();	26	use BDB ();
26	use Data::Dumper;	27	use Data::Dumper;
27	use Digest::MD5;	28	use Digest::MD5;
28	use Fcntl;	29	use Fcntl;
29	use YAML::Syck ();	30	use YAML::Syck ();
…		…
49	our %COMMAND = ();	50	our %COMMAND = ();
50	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
51		52
52	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
56		58
57	our $RELOAD; # number of reloads so far	59	our $RELOAD; # number of reloads so far
58	our @EVENT;	60	our @EVENT;
…		…
90	our $LINK_MAP; # the special {link} map, which is always available	92	our $LINK_MAP; # the special {link} map, which is always available
91		93
92	# used to convert map paths into valid unix filenames by replacing / by ∕	94	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
		100
95	binmode STDOUT;	101	binmode STDOUT;
96	binmode STDERR;	102	binmode STDERR;
97		103
98	# read virtual server time, if available	104	# read virtual server time, if available
99	unless ($RUNTIME \|\| !-e "$LOCALDIR/runtime") {	105	unless ($RUNTIME \|\| !-e "$LOCALDIR/runtime") {
…		…
139		145
140	=item $cf::TICK	146	=item $cf::TICK
141		147
142	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
143		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
		159
144	=item %cf::CFG	160	=item %cf::CFG
145		161
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
147	from wherever your confdir points to.	163	from wherever your confdir points to.
148		164
…		…
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		196
180	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	198	# within the Safe compartment.
182	for my $pkg (qw(	199	for my $pkg (qw(
183	cf::global cf::attachable	200	cf::global cf::attachable
…		…
191	}	208	}
192		209
193	$Event::DIED = sub {	210	$Event::DIED = sub {
194	warn "error in event callback: @_";	211	warn "error in event callback: @_";
195	};	212	};
		213
		214	#############################################################################
196		215
197	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
198		217
199	=over 4	218	=over 4
200		219
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	239	$d
221	} \|\| "[unable to dump $_[0]: '$@']";	240	} \|\| "[unable to dump $_[0]: '$@']";
222	}	241	}
223		242
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
227		244
228	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
229		246
230	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
231		248
232	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
		250
		251	=cut
		252
		253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		254
		255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
233		257
234	=item cf::lock_wait $string	258	=item cf::lock_wait $string
235		259
236	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
237		261
…		…
303		327
304	BEGIN { *async = \&Coro::async_pool }	328	BEGIN { *async = \&Coro::async_pool }
305		329
306	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
307		331
308	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
311		336
312	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
315	fast or be very important.	340	fast or be very important.
…		…
318		343
319	sub sync_job(&) {	344	sub sync_job(&) {
320	my ($job) = @_;	345	my ($job) = @_;
321		346
322	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
323	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
325		352
326	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
327	# (but this is cancel-safe)	354	# (but this is cancel-safe)
…		…
338		365
339	while ($busy) {	366	while ($busy) {
340	Coro::cede or Event::one_event;	367	Coro::cede or Event::one_event;
341	}	368	}
342		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError \| logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
		376
343	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
344	} else {	378	} else {
345	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
346		380
347	$job->()	381	$job->()
…		…
366	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
367		401
368	$coro	402	$coro
369	}	403	}
370		404
371	sub write_runtime {	405	=item fork_call { }, $args
372	my $runtime = "$LOCALDIR/runtime";
373		406
374	# first touch the runtime file to show we are still running:	407	Executes the given code block with the given arguments in a seperate
375	# the fsync below can take a very very long time.	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
376		411
377	warn "touching runtime...\n";#d#	412	=cut
378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
379	utime undef, undef, $fh;
380	}
381		413
382	my $guard = cf::lock_acquire "write_runtime";	414	sub _store_scalar {
383		415	open my $fh, ">", \my $buf
384	warn "starting to write runtime...\n";#d#	416	or die "fork_call: cannot open fh-to-buf in child : $!";
385	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644	417	Storable::store_fd $_[0], $fh;
386	or return;
387
388	my $value = $cf::RUNTIME + 90 + 10;
389	# 10 is the runtime save interval, for a monotonic clock
390	# 60 allows for the watchdog to kill the server.
391
392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
393	and return;
394
395	# always fsync - this file is important
396	aio_fsync $fh
397	and return;
398
399	# touch it again to show we are up-to-date
400	utime undef, undef, $fh;
401
402	close $fh	418	close $fh;
403	or return;
404		419
405	aio_rename "$runtime~", $runtime	420	$buf
406	and return;	421	}
407		422
408	warn "... done writing runtime.\n";#d#	423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
409		425
		426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		427	# or die "socketpair: $!";
		428	pipe my $fh1, my $fh2
		429	or die "pipe: $!";
		430
		431	if (my $pid = fork) {
		432	close $fh2;
		433
		434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		435	warn "pst<$res>" unless $res =~ /^pst/;
		436	$res = Coro::Storable::thaw $res;
		437
		438	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		439
		440	Carp::confess $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
410	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		498	my $key = "$_[0]/$_[1]";
		499
		500	cf::sync_job {
		501	BDB::db_get $DB, undef, $key, my $data;
		502
		503	$! ? ()
		504	: $data
		505	}
		506	}
		507
		508	sub db_put($$$) {
		509	BDB::dbreq_pri 4;
		510	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		511	}
		512
		513	=item cf::cache $id => [$paths...], $processversion => $process
		514
		515	Generic caching function that returns the value of the resource $id,
		516	caching and regenerating as required.
		517
		518	This function can block.
		519
		520	=cut
		521
		522	sub cache {
		523	my ($id, $src, $processversion, $process) = @_;
		524
		525	my $meta =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	aio_stat $_
		530	and Carp::croak "$_: $!";
		531
		532	($_, (stat _)[7,9])
		533	} @$src;
		534
		535	my $dbmeta = db_get cache => "$id/meta";
		536	if ($dbmeta ne $meta) {
		537	# changed, we may need to process
		538
		539	my @data;
		540	my $md5;
		541
		542	for (0 .. $#$src) {
		543	0 <= aio_load $src->[$_], $data[$_]
		544	or Carp::croak "$src->[$_]: $!";
		545	}
		546
		547	# if processing is expensive, check
		548	# checksum first
		549	if (1) {
		550	$md5 =
		551	join "\x00",
		552	$processversion,
		553	map {
		554	Coro::cede;
		555	($src->[$_], Digest::MD5::md5_hex $data[$_])
		556	} 0.. $#$src;
		557
		558
		559	my $dbmd5 = db_get cache => "$id/md5";
		560	if ($dbmd5 eq $md5) {
		561	db_put cache => "$id/meta", $meta;
		562
		563	return db_get cache => "$id/data";
		564	}
		565	}
		566
		567	my $t1 = Time::HiRes::time;
		568	my $data = $process->(\@data);
		569	my $t2 = Time::HiRes::time;
		570
		571	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		572
		573	db_put cache => "$id/data", $data;
		574	db_put cache => "$id/md5" , $md5;
		575	db_put cache => "$id/meta", $meta;
		576
		577	return $data;
		578	}
		579
		580	db_get cache => "$id/data"
411	}	581	}
412		582
413	=item cf::datalog type => key => value, ...	583	=item cf::datalog type => key => value, ...
414		584
415	Log a datalog packet of the given type with the given key-value pairs.	585	Log a datalog packet of the given type with the given key-value pairs.
…		…
433	attach callbacks/event handlers (a collection of which is called an "attachment")	603	attach callbacks/event handlers (a collection of which is called an "attachment")
434	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
435		605
436	In the following description, CLASS can be any of C<global>, C<object>	606	In the following description, CLASS can be any of C<global>, C<object>
437	C<player>, C<client> or C<map> (i.e. the attachable objects in	607	C<player>, C<client> or C<map> (i.e. the attachable objects in
438	crossfire+).	608	Crossfire TRT).
439		609
440	=over 4	610	=over 4
441		611
442	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
443		613
…		…
606	$registry = $CB_TYPE[$object_type] \|\|= [];	776	$registry = $CB_TYPE[$object_type] \|\|= [];
607		777
608	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
609	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
610	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
611	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] \|\|= [];
612		782
613	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
614	my $pkg = shift @arg;	784	my $pkg = shift @arg;
615		785
616	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
645	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
646	}	816	}
647		817
648	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
649	} else {	819	} else {
650	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
651	}	821	}
652		822
653	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
654	}	824	}
655		825
…		…
657	if (ref $_[0]) {	827	if (ref $_[0]) {
658	_object_attach @_;	828	_object_attach @_;
659	} else {	829	} else {
660	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
661	}	831	}
		832	_recalc_want;
662	};	833	};
663		834
664	# all those should be optimised	835	# all those should be optimised
665	sub cf::attachable::detach {	836	sub cf::attachable::detach {
666	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
669	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
670	reattach ($obj);	841	reattach ($obj);
671	} else {	842	} else {
672	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
673	}	844	}
		845	_recalc_want;
674	};	846	};
675		847
676	sub cf::attachable::attached {	848	sub cf::attachable::attached {
677	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
678		850
…		…
851	or return;	1023	or return;
852	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
853	}	1025	}
854		1026
855	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
856	$filename, length $data, scalar @{$av \|\| []};#d#	1028	$filename, length $data, scalar @{$av \|\| []};
857	return ($data, $av);	1029	return ($data, $av);
858	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
859		1037
860	#############################################################################	1038	#############################################################################
861	# command handling &c	1039	# command handling &c
862		1040
863	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
876	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
877	}	1055	}
878		1056
879	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
880		1058
881	Register a callbackf ro execution when the client sends an extcmd packet.	1059	Register a callback for execution when the client sends an (synchronous)
		1060	extcmd packet. Ext commands will be processed in the order they are
		1061	received by the server, like other user commands. The first argument is
		1062	the logged-in player. Ext commands can only be processed after a player
		1063	has logged in successfully.
882		1064
883	If the callback returns something, it is sent back as if reply was being	1065	If the callback returns something, it is sent back as if reply was being
884	called.	1066	called.
885		1067
		1068	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1069
		1070	Register a callback for execution when the client sends an (asynchronous)
		1071	exticmd packet. Exti commands are processed by the server as soon as they
		1072	are received, i.e. out of order w.r.t. other commands. The first argument
		1073	is a client socket. Exti commands can be received anytime, even before
		1074	log-in.
		1075
		1076	If the callback returns something, it is sent back as if reply was being
		1077	called.
		1078
886	=cut	1079	=cut
887		1080
888	sub register_extcmd {	1081	sub register_extcmd {
889	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
890		1083
891	$EXTCMD{$name} = $cb;	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
892	}	1091	}
893		1092
894	cf::player->attach (	1093	cf::player->attach (
895	on_command => sub {	1094	on_command => sub {
896	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
905	cf::override;	1104	cf::override;
906	},	1105	},
907	on_extcmd => sub {	1106	on_extcmd => sub {
908	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
909		1108
910	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
911		1110
912	if (ref $msg) {	1111	if (ref $msg) {
913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
914	if (my %reply = $cb->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
915	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
921		1120
922	cf::override;	1121	cf::override;
923	},	1122	},
924	);	1123	);
925		1124
926	sub load_extension {
927	my ($path) = @_;
928
929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
930	my $base = $1;
931	my $pkg = $1;
932	$pkg =~ s/[^[:word:]]/_/g;
933	$pkg = "ext::$pkg";
934
935	warn "... loading '$path' into '$pkg'\n";
936
937	open my $fh, "<:utf8", $path
938	or die "$path: $!";
939
940	my $source =
941	"package $pkg; use strict; use utf8;\n"
942	. "#line 1 \"$path\"\n{\n"
943	. (do { local $/; <$fh> })
944	. "\n};\n1";
945
946	unless (eval $source) {
947	my $msg = $@ ? "$path: $@\n"
948	: "extension disabled.\n";
949	if ($source =~ /^#!.perl.#.*MANDATORY/m) { # ugly match
950	warn $@;
951	warn "mandatory extension failed to load, exiting.\n";
952	exit 1;
953	}
954	die $@;
955	}
956
957	push @EXTS, $pkg;
958	}
959
960	sub load_extensions {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
961	for my $ext (<$LIBDIR/*.ext>) {	1129	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1130	next unless -r $path;
963	eval {	1131
964	load_extension $ext;	1132	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1133	my $base = $1;
		1134	my $pkg = $1;
		1135	$pkg =~ s/[^[:word:]]/_/g;
		1136	$pkg = "ext::$pkg";
		1137
		1138	open my $fh, "<:utf8", $path
		1139	or die "$path: $!";
		1140
		1141	my $source = do { local $/; <$fh> };
		1142
		1143	my %ext = (
		1144	path => $path,
		1145	base => $base,
		1146	pkg => $pkg,
		1147	);
		1148
		1149	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1150	if $source =~ /\A#!.?perl.?#\s(.)$/m;
		1151
		1152	$ext{source} =
		1153	"package $pkg; use strict; use utf8;\n"
		1154	. "#line 1 \"$path\"\n{\n"
		1155	. $source
		1156	. "\n};\n1";
		1157
		1158	$todo{$base} = \%ext;
		1159	}
		1160
		1161	my %done;
		1162	while (%todo) {
		1163	my $progress;
		1164
		1165	while (my ($k, $v) = each %todo) {
		1166	for (split /,\s*/, $v->{meta}{depends}) {
		1167	goto skip
		1168	unless exists $done{$_};
		1169	}
		1170
		1171	warn "... loading '$k' into '$v->{pkg}'\n";
		1172
		1173	unless (eval $v->{source}) {
		1174	my $msg = $@ ? "$v->{path}: $@\n"
		1175	: "$v->{base}: extension inactive.\n";
		1176
		1177	if (exists $v->{meta}{mandatory}) {
		1178	warn $msg;
		1179	warn "mandatory extension failed to load, exiting.\n";
		1180	exit 1;
		1181	}
		1182
		1183	warn $msg;
		1184	}
		1185
		1186	$done{$k} = delete $todo{$k};
		1187	push @EXTS, $v->{pkg};
		1188	$progress = 1;
965	1	1189	}
966	} or warn "$ext not loaded: $@";	1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
967	}	1195	};
968	}	1196	}
969		1197
970	#############################################################################	1198	#############################################################################
		1199
		1200	=back
971		1201
972	=head2 CORE EXTENSIONS	1202	=head2 CORE EXTENSIONS
973		1203
974	Functions and methods that extend core crossfire objects.	1204	Functions and methods that extend core crossfire objects.
975		1205
…		…
1163	}	1393	}
1164		1394
1165	\@paths	1395	\@paths
1166	}	1396	}
1167		1397
		1398	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1399
		1400	Expand crossfire pod fragments into protocol xml.
		1401
		1402	=cut
		1403
		1404	sub expand_cfpod {
		1405	((my $self), (local $_)) = @_;
		1406
		1407	# escape & and <
		1408	s/&/&/g;
		1409	s/(?<![BIUGH])</</g;
		1410
		1411	# this is buggy, it needs to properly take care of nested <'s
		1412
		1413	1 while
		1414	# replace B<>, I<>, U<> etc.
		1415	s/B<([^\>]*)>/<b>$1<\/b>/
		1416	\|\| s/I<([^\>]*)>/<i>$1<\/i>/
		1417	\|\| s/U<([^\>]*)>/<u>$1<\/u>/
		1418	# replace G<male\|female> tags
		1419	\|\| s{G<([^>\|])\\|([^>])>}{
		1420	$self->gender ? $2 : $1
		1421	}ge
		1422	# replace H<hint text>
		1423	\|\| s{H<([^\>]*)>}
		1424	{
		1425	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1426	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1427	"")
		1428	[$self->{hintmode}]
		1429	}ge;
		1430
		1431	# create single paragraphs (very hackish)
		1432	s/(?<=\S)\n(?=\w)/ /g;
		1433
		1434	# compress some whitespace
		1435	s/\s+\n/\n/g; # ws line-ends
		1436	s/\n\n+/\n/g; # double lines
		1437	s/^\n+//; # beginning lines
		1438	s/\n+$//; # ending lines
		1439
		1440	warn $_;#d#
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
1168	=item $player->ext_reply ($msgid, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1169		1450
1170	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1171		1452
1172	=cut	1453	=cut
1173		1454
1174	sub ext_reply($$%) {	1455	sub ext_reply($$%) {
1175	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1176		1457
1177	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1178		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1179	$self->send ("ext " . cf::to_json \%msg);
1180	}	1460	}
1181		1461
1182	=item $player->ext_event ($type, %msg)	1462	=item $player->ext_event ($type, %msg)
1183		1463
1184	Sends an ext event to the client.	1464	Sends an ext event to the client.
…		…
1199		1479
1200	package cf::region;	1480	package cf::region;
1201		1481
1202	=item cf::region::find_by_path $path	1482	=item cf::region::find_by_path $path
1203		1483
1204	Tries to decuce the probable region for a map knowing only its path.	1484	Tries to decuce the likely region for a map knowing only its path.
1205		1485
1206	=cut	1486	=cut
1207		1487
1208	sub find_by_path($) {	1488	sub find_by_path($) {
1209	my ($path) = @_;	1489	my ($path) = @_;
…		…
1283	my ($self, $merge) = @_;	1563	my ($self, $merge) = @_;
1284		1564
1285	# we have to keep some variables in memory intact	1565	# we have to keep some variables in memory intact
1286	local $self->{path};	1566	local $self->{path};
1287	local $self->{load_path};	1567	local $self->{load_path};
1288	local $self->{deny_save};
1289	local $self->{deny_reset};
1290		1568
1291	$self->SUPER::thawer_merge ($merge);	1569	$self->SUPER::thawer_merge ($merge);
1292	}	1570	}
1293		1571
1294	sub normalise {	1572	sub normalise {
…		…
1394		1672
1395	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1396	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1397	}	1675	}
1398		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
1399	sub unlink_save {	1685	sub unlink_save {
1400	my ($self) = @_;	1686	my ($self) = @_;
1401		1687
1402	utf8::encode (my $save = $self->save_path);	1688	utf8::encode (my $save = $self->save_path);
1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1459	$self->load_header_orig	1745	$self->load_header_orig
1460	or return;	1746	or return;
1461	$self->prepare_orig;	1747	$self->prepare_orig;
1462	}	1748	}
1463		1749
		1750	$self->{deny_reset} = 1
		1751	if $self->no_reset;
		1752
1464	$self->default_region (cf::region::find_by_path $self->{path})	1753	$self->default_region (cf::region::find_by_path $self->{path})
1465	unless $self->default_region;	1754	unless $self->default_region;
1466		1755
1467	1	1756	1
1468	}	1757	}
…		…
1483	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1484		1773
1485	$map->load_header	1774	$map->load_header
1486	or return;	1775	or return;
1487		1776
1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489	# doing this can freeze the server in a sync job, obviously	1778	# doing this can freeze the server in a sync job, obviously
1490	#$cf::WAIT_FOR_TICK->wait;	1779	#$cf::WAIT_FOR_TICK->wait;
1491	$map->reset;	1780	$map->reset;
1492	undef $guard;	1781	undef $guard;
1493	return find $path;	1782	return find $path;
…		…
1560	my ($self, $ob) = @_;	1849	my ($self, $ob) = @_;
1561		1850
1562	return find "~" . $ob->name . "/" . $self->{path}	1851	return find "~" . $ob->name . "/" . $self->{path}
1563	if $self->per_player;	1852	if $self->per_player;
1564		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
		1856
1565	$self	1857	$self
1566	}	1858	}
1567		1859
1568	# find and load all maps in the 3x3 area around a map	1860	# find and load all maps in the 3x3 area around a map
1569	sub load_diag {	1861	sub load_diag {
…		…
1679		1971
1680	sub reset_at {	1972	sub reset_at {
1681	my ($self) = @_;	1973	my ($self) = @_;
1682		1974
1683	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1685	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1686		1977
1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1689		1980
…		…
1700	my ($self) = @_;	1991	my ($self) = @_;
1701		1992
1702	my $lock = cf::lock_acquire "map_data:$self->{path}";	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1703		1994
1704	return if $self->players;	1995	return if $self->players;
1705	return if $self->isa ("ext::map_per_player");#d#
1706		1996
1707	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
1708		1998
1709	$self->in_memory (cf::MAP_SWAPPED);	1999	$self->in_memory (cf::MAP_SWAPPED);
1710		2000
1711	# need to save uniques path	2001	# need to save uniques path
1712	unless ($self->{deny_save}) {	2002	unless ($self->{deny_save}) {
…		…
1744	$cf::MAP{$self->path} = $self;	2034	$cf::MAP{$self->path} = $self;
1745		2035
1746	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1747	}	2037	}
1748		2038
		2039	=item $maps = cf::map::tmp_maps
		2040
		2041	Returns an arrayref with all map paths of currently instantiated and saved
		2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
		2055	}
		2056
		2057	=item $maps = cf::map::random_maps
		2058
		2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
		2061
		2062	=cut
		2063
		2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
1749	=item cf::map::unique_maps	2075	=item cf::map::unique_maps
1750		2076
1751	Returns an arrayref of paths of all shared maps that have	2077	Returns an arrayref of paths of all shared maps that have
1752	instantiated unique items. May block.	2078	instantiated unique items. May block.
1753		2079
1754	=cut	2080	=cut
1755		2081
1756	sub unique_maps() {	2082	sub unique_maps() {
1757	my $files = aio_readdir $UNIQUEDIR	2083	[
1758	or return;	2084	map {
1759
1760	my @paths;
1761
1762	for (@$files) {
1763	utf8::decode $_;	2085	utf8::decode $_;
1764	next if /\.pst$/;	2086	/\.map$/
1765	next unless /^$PATH_SEP/o;	2087	? normalise $_
1766		2088	: ()
1767	push @paths, cf::map::normalise $_;	2089	} @{ aio_readdir $UNIQUEDIR or [] }
1768	}	2090	]
1769
1770	\@paths
1771	}	2091	}
1772		2092
1773	package cf;	2093	package cf;
1774		2094
1775	=back	2095	=back
…		…
1821		2141
1822	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1823		2143
1824	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1825	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1826	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1827	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1828	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1829	}	2163	}
1830	}	2164	}
1831		2165
1832	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1833		2167
…		…
1881	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1882		2216
1883	return if UNIVERSAL::isa $self->map, "ext::map_link";	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1884		2218
1885	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1886	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1887		2221
1888	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2222	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1889	}	2223	}
1890		2224
1891	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1892	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1893		2229
1894	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1895		2231
1896	unless ($map) {	2232	unless ($map) {
1897	# restore original map position	2233	# restore original map position
…		…
1920		2256
1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1923	}	2259	}
1924		2260
1925	cf::player->attach (
1926	on_logout => sub {
1927	my ($pl) = @_;
1928
1929	# abort map switching before logout
1930	if ($pl->ob->{_link_pos}) {
1931	cf::sync_job {
1932	$pl->ob->leave_link
1933	};
1934	}
1935	},
1936	on_login => sub {
1937	my ($pl) = @_;
1938
1939	# try to abort aborted map switching on player login :)
1940	# should happen only on crashes
1941	if ($pl->ob->{_link_pos}) {
1942	$pl->ob->enter_link;
1943	(async {
1944	$pl->ob->reply (undef,
1945	"There was an internal problem at your last logout, "
1946	. "the server will try to bring you to your intended destination in a second.",
1947	cf::NDI_RED);
1948	# we need this sleep as the login has a concurrent enter_exit running
1949	# and this sleep increases chances of the player not ending up in scorn
1950	Coro::Timer::sleep 1;
1951	$pl->ob->leave_link;
1952	})->prio (2);
1953	}
1954	},
1955	);
1956
1957	=item $player_object->goto ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1958		2262
		2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
		2267
1959	=cut	2268	=cut
		2269
		2270	our $GOTOGEN;
1960		2271
1961	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1962	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963		2277
1964	$self->enter_link;	2278	$self->enter_link;
1965		2279
1966	(async {	2280	(async {
1967	my $map = eval {	2281	my $map = eval {
1968	my $map = cf::map::find $path;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1969	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
		2286	$map = $check->($map) if $check && $map;
		2287	} else {
		2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		2289	}
		2290
1970	$map	2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
		2296	LOG llevError \| logBacktrace, Carp::longmess $@;
1971	} or	2297	}
1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
1973		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1974	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1975	})->prio (1);	2303	})->prio (1);
1976	}	2304	}
1977		2305
1978	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1979		2307
…		…
2048	my $hp = $exit->stats->hp;	2376	my $hp = $exit->stats->hp;
2049	my $sp = $exit->stats->sp;	2377	my $sp = $exit->stats->sp;
2050		2378
2051	$self->enter_link;	2379	$self->enter_link;
2052		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
		2384
2053	(async {	2385	(async {
2054	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
2055	unless (eval {	2387	unless (eval {
2056	$self->goto ($slaying, $hp, $sp);	2388	$self->goto ($slaying, $hp, $sp);
2057		2389
…		…
2084		2416
2085	utf8::encode $text;	2417	utf8::encode $text;
2086	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2087	}	2419	}
2088		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra \|\| length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
2089	=item $client->ext_event ($type, %msg)	2461	=item $client->ext_event ($type, %msg)
2090		2462
2091	Sends an exti event to the client.	2463	Sends an ext event to the client.
2092		2464
2093	=cut	2465	=cut
2094		2466
2095	sub cf::client::ext_event($$%) {	2467	sub cf::client::ext_event($$%) {
2096	my ($self, $type, %msg) = @_;	2468	my ($self, $type, %msg) = @_;
2097		2469
2098	$msg{msgtype} = "event_$type";	2470	$msg{msgtype} = "event_$type";
2099	$self->send_packet ("ext " . cf::to_json \%msg);	2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2100	}	2472	}
2101		2473
2102	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
2103		2475
2104	Queues a query to the client, calling the given callback with	2476	Queues a query to the client, calling the given callback with
2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2477	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2106	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2478	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2107		2479
2108	Queries can fail, so check the return code. Or don't, as queries will become	2480	Queries can fail, so check the return code. Or don't, as queries will
2109	reliable at some point in the future.	2481	become reliable at some point in the future.
2110		2482
2111	=cut	2483	=cut
2112		2484
2113	sub cf::client::query {	2485	sub cf::client::query {
2114	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
2122	utf8::encode $text;	2494	utf8::encode $text;
2123	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2124		2496
2125	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
2126	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
2127	}	2501	}
2128		2502
2129	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
2130	on_reply => sub {	2509	on_reply => sub {
2131	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
2132		2511
2133	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
2134	# get handled first	2513	# get handled first
…		…
2146	} else {	2525	} else {
2147	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2148	}	2527	}
2149	}	2528	}
2150	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($ns, $buf) = @_;
		2532
		2533	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2534
		2535	if (ref $msg) {
		2536	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2537	if (my %reply = $cb->($ns, $msg)) {
		2538	$reply{msgid} = $msg->{msgid};
		2539	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2540	}
		2541	}
		2542	} else {
		2543	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2544	}
		2545
		2546	cf::override;
		2547	},
2151	);	2548	);
2152		2549
2153	=item $client->async (\&cb)	2550	=item $client->async (\&cb)
2154		2551
2155	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
…		…
2204		2601
2205	=pod	2602	=pod
2206		2603
2207	The following functions and methods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
2208		2605
2209	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
2210	cf::object::player player	2610	cf::object::player
2211	cf::player peaceful	2611	player
2212	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
2213		2618
2214	=cut	2619	=cut
2215		2620
2216	for (	2621	for (
2217	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
2218	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
2219	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
2220	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
2221	) {	2627	) {
2222	no strict 'refs';	2628	no strict 'refs';
…		…
2291	}	2697	}
2292		2698
2293	=back	2699	=back
2294		2700
2295	=cut	2701	=cut
2296
2297	#############################################################################
2298
2299	=head2 EXTENSION DATABASE SUPPORT
2300
2301	Crossfire maintains a very simple database for extension use. It can
2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2303	convert to/from binary).
2304
2305	The parameter C<$family> should best start with the name of the extension
2306	using it, it should be unique.
2307
2308	=over 4
2309
2310	=item $value = cf::db_get $family => $key
2311
2312	Returns a single value from the database.
2313
2314	=item cf::db_put $family => $key => $value
2315
2316	Stores the given C<$value> in the family.
2317
2318	=cut
2319
2320	our $DB;
2321
2322	sub db_init {
2323	unless ($DB) {
2324	$DB = BDB::db_create $DB_ENV;
2325
2326	cf::sync_job {
2327	eval {
2328	$DB->set_flags (BDB::CHKSUM);
2329
2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2331	BDB::CREATE \| BDB::AUTO_COMMIT, 0666;
2332	cf::cleanup "db_open(db): $!" if $!;
2333	};
2334	cf::cleanup "db_open(db): $@" if $@;
2335	};
2336	}
2337	}
2338
2339	sub db_get($$) {
2340	my $key = "$_[0]/$_[1]";
2341
2342	cf::sync_job {
2343	BDB::db_get $DB, undef, $key, my $data;
2344
2345	$! ? ()
2346	: $data
2347	}
2348	}
2349
2350	sub db_put($$$) {
2351	BDB::dbreq_pri 4;
2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2353	}
2354
2355	=item cf::cache $id => [$paths...], $processversion => $process
2356
2357	Generic caching function that returns the value of the resource $id,
2358	caching and regenerating as required.
2359
2360	This function can block.
2361
2362	=cut
2363
2364	sub cache {
2365	my ($id, $src, $processversion, $process) = @_;
2366
2367	my $meta =
2368	join "\x00",
2369	$processversion,
2370	map {
2371	aio_stat $_
2372	and Carp::croak "$_: $!";
2373
2374	($_, (stat _)[7,9])
2375	} @$src;
2376
2377	my $dbmeta = db_get cache => "$id/meta";
2378	if ($dbmeta ne $meta) {
2379	# changed, we may need to process
2380
2381	my @data;
2382	my $md5;
2383
2384	for (0 .. $#$src) {
2385	0 <= aio_load $src->[$_], $data[$_]
2386	or Carp::croak "$src->[$_]: $!";
2387	}
2388
2389	# if processing is expensive, check
2390	# checksum first
2391	if (1) {
2392	$md5 =
2393	join "\x00",
2394	$processversion,
2395	map {
2396	Coro::cede;
2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
2398	} 0.. $#$src;
2399
2400
2401	my $dbmd5 = db_get cache => "$id/md5";
2402	if ($dbmd5 eq $md5) {
2403	db_put cache => "$id/meta", $meta;
2404
2405	return db_get cache => "$id/data";
2406	}
2407	}
2408
2409	my $t1 = Time::HiRes::time;
2410	my $data = $process->(\@data);
2411	my $t2 = Time::HiRes::time;
2412
2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2414
2415	db_put cache => "$id/data", $data;
2416	db_put cache => "$id/md5" , $md5;
2417	db_put cache => "$id/meta", $meta;
2418
2419	return $data;
2420	}
2421
2422	db_get cache => "$id/data"
2423	}
2424
2425	=item fork_call { }, $args
2426
2427	Executes the given code block with the given arguments in a seperate
2428	process, returning the results. Everything must be serialisable with
2429	Coro::Storable. May, of course, block. Note that the executed sub may
2430	never block itself or use any form of Event handling.
2431
2432	=cut
2433
2434	sub fork_call(&@) {
2435	my ($cb, @args) = @_;
2436
2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2438	# or die "socketpair: $!";
2439	pipe my $fh1, my $fh2
2440	or die "pipe: $!";
2441
2442	if (my $pid = fork) {
2443	close $fh2;
2444
2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2446	$res = Coro::Storable::thaw $res;
2447
2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2449
2450	die $$res unless "ARRAY" eq ref $res;
2451
2452	return wantarray ? @$res : $res->[-1];
2453	} else {
2454	reset_signals;
2455	local $SIG{__WARN__};
2456	local $SIG{__DIE__};
2457	eval {
2458	close $fh1;
2459
2460	my @res = eval { $cb->(@args) };
2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2462	};
2463
2464	warn $@ if $@;
2465	_exit 0;
2466	}
2467	}
2468
2469
2470		2702
2471	#############################################################################	2703	#############################################################################
2472	# the server's init and main functions	2704	# the server's init and main functions
2473		2705
2474	sub load_facedata($) {	2706	sub load_facedata($) {
…		…
2534	}	2766	}
2535		2767
2536	sub reload_archetypes {	2768	sub reload_archetypes {
2537	load_resource_file "$DATADIR/archetypes"	2769	load_resource_file "$DATADIR/archetypes"
2538	or die "unable to load archetypes\n";	2770	or die "unable to load archetypes\n";
		2771	#d# NEED to laod twice to resolve forward references
		2772	# this really needs to be done in an extra post-pass
		2773	# (which needs to be synchronous, so solve it differently)
		2774	load_resource_file "$DATADIR/archetypes"
		2775	or die "unable to load archetypes\n";
2539	}	2776	}
2540		2777
2541	sub reload_treasures {	2778	sub reload_treasures {
2542	load_resource_file "$DATADIR/treasures"	2779	load_resource_file "$DATADIR/treasures"
2543	or die "unable to load treasurelists\n";	2780	or die "unable to load treasurelists\n";
…		…
2546	sub reload_resources {	2783	sub reload_resources {
2547	warn "reloading resource files...\n";	2784	warn "reloading resource files...\n";
2548		2785
2549	reload_regions;	2786	reload_regions;
2550	reload_facedata;	2787	reload_facedata;
		2788	#reload_archetypes;#d#
2551	reload_archetypes;	2789	reload_archetypes;
2552	reload_treasures;	2790	reload_treasures;
2553		2791
2554	warn "finished reloading resource files\n";	2792	warn "finished reloading resource files\n";
2555	}	2793	}
…		…
2612	},	2850	},
2613	);	2851	);
2614	}	2852	}
2615	}	2853	}
2616		2854
		2855	sub write_runtime {
		2856	my $runtime = "$LOCALDIR/runtime";
		2857
		2858	# first touch the runtime file to show we are still running:
		2859	# the fsync below can take a very very long time.
		2860
		2861	IO::AIO::aio_utime $runtime, undef, undef;
		2862
		2863	my $guard = cf::lock_acquire "write_runtime";
		2864
		2865	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2866	or return;
		2867
		2868	my $value = $cf::RUNTIME + 90 + 10;
		2869	# 10 is the runtime save interval, for a monotonic clock
		2870	# 60 allows for the watchdog to kill the server.
		2871
		2872	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2873	and return;
		2874
		2875	# always fsync - this file is important
		2876	aio_fsync $fh
		2877	and return;
		2878
		2879	# touch it again to show we are up-to-date
		2880	aio_utime $fh, undef, undef;
		2881
		2882	close $fh
		2883	or return;
		2884
		2885	aio_rename "$runtime~", $runtime
		2886	and return;
		2887
		2888	warn "runtime file written.\n";
		2889
		2890	1
		2891	}
		2892
2617	sub emergency_save() {	2893	sub emergency_save() {
2618	my $freeze_guard = cf::freeze_mainloop;	2894	my $freeze_guard = cf::freeze_mainloop;
2619		2895
2620	warn "enter emergency perl save\n";	2896	warn "enter emergency perl save\n";
2621		2897
…		…
2696	%EXT_CORO = ();	2972	%EXT_CORO = ();
2697		2973
2698	warn "removing commands";	2974	warn "removing commands";
2699	%COMMAND = ();	2975	%COMMAND = ();
2700		2976
2701	warn "removing ext commands";	2977	warn "removing ext/exti commands";
2702	%EXTCMD = ();	2978	%EXTCMD = ();
		2979	%EXTICMD = ();
2703		2980
2704	warn "unloading/nuking all extensions";	2981	warn "unloading/nuking all extensions";
2705	for my $pkg (@EXTS) {	2982	for my $pkg (@EXTS) {
2706	warn "... unloading $pkg";	2983	warn "... unloading $pkg";
2707		2984
…		…
2825	my $signal = new Coro::Signal;	3102	my $signal = new Coro::Signal;
2826	push @WAIT_FOR_TICK_BEGIN, $signal;	3103	push @WAIT_FOR_TICK_BEGIN, $signal;
2827	$signal->wait;	3104	$signal->wait;
2828	}	3105	}
2829		3106
		3107	my $min = 1e6;#d#
		3108	my $avg = 10;
2830	$TICK_WATCHER = Event->timer (	3109	$TICK_WATCHER = Event->timer (
2831	reentrant => 0,	3110	reentrant => 0,
2832	parked => 1,	3111	parked => 1,
2833	prio => 0,	3112	prio => 0,
2834	at => $NEXT_TICK \|\| $TICK,	3113	at => $NEXT_TICK \|\| $TICK,
…		…
2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3117	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839	unless ++$bug_warning > 10;	3118	unless ++$bug_warning > 10;
2840	return;	3119	return;
2841	}	3120	}
2842		3121
2843	$NOW = Event::time;	3122	$NOW = $tick_start = Event::time;
2844		3123
2845	cf::server_tick; # one server iteration	3124	cf::server_tick; # one server iteration
		3125
		3126	0 && sync_job {#d#
		3127	for(1..10) {
		3128	my $t = Event::time;
		3129	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3130	or die;
		3131
		3132	$map->width (50);
		3133	$map->height (50);
		3134	$map->alloc;
		3135	$map->_load_objects ("/tmp/x.map", 1);
		3136	my $t = Event::time - $t;
		3137
		3138	#next unless $t < 0.0013;#d#
		3139	if ($t < $min) {
		3140	$min = $t;
		3141	}
		3142	$avg = $avg * 0.99 + $t * 0.01;
		3143	}
		3144	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3145	exit 0;
		3146	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3147	};
2846		3148
2847	$RUNTIME += $TICK;	3149	$RUNTIME += $TICK;
2848	$NEXT_TICK += $TICK;	3150	$NEXT_TICK += $TICK;
2849		3151
2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3152	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2856	}	3158	}
2857		3159
2858	# my $AFTER = Event::time;	3160	# my $AFTER = Event::time;
2859	# warn $AFTER - $NOW;#d#	3161	# warn $AFTER - $NOW;#d#
2860		3162
		3163	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3164	$sig->send;
		3165	}
		3166	while (my $sig = shift @WAIT_FOR_TICK) {
		3167	$sig->send;
		3168	}
		3169
		3170	$NOW = Event::time;
		3171
2861	# if we are delayed by four ticks or more, skip them all	3172	# if we are delayed by four ticks or more, skip them all
2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3173	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2863		3174
2864	$TICK_WATCHER->at ($NEXT_TICK);	3175	$TICK_WATCHER->at ($NEXT_TICK);
2865	$TICK_WATCHER->start;	3176	$TICK_WATCHER->start;
2866		3177
2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3178	$LOAD = ($NOW - $tick_start) / $TICK;
2868	$sig->send;	3179	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2869	}
2870	while (my $sig = shift @WAIT_FOR_TICK) {
2871	$sig->send;
2872	}
2873		3180
2874	_post_tick;	3181	_post_tick;
		3182
		3183
2875	},	3184	},
2876	);	3185	);
2877		3186
2878	{	3187	{
2879	BDB::max_poll_time $TICK * 0.1;	3188	BDB::max_poll_time $TICK * 0.1;

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs. Revision 1.300 by root, Tue Jul 10 06:44:29 2007 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.300 by root, Tue Jul 10 06:44:29 2007 UTC