[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 1.299 by root, Sun Jul 8 14:56:05 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	$_
		1441	}
		1442
		1443	sub hintmode {
		1444	$_[0]{hintmode} = $_[1] if @_ > 1;
		1445	$_[0]{hintmode}
		1446	}
		1447
1168	=item $player->ext_reply ($msgid, %msg)	1448	=item $player->ext_reply ($msgid, %msg)
1169		1449
1170	Sends an ext reply to the player.	1450	Sends an ext reply to the player.
1171		1451
1172	=cut	1452	=cut
1173		1453
1174	sub ext_reply($$%) {	1454	sub ext_reply($$%) {
1175	my ($self, $id, %msg) = @_;	1455	my ($self, $id, %msg) = @_;
1176		1456
1177	$msg{msgid} = $id;	1457	$msg{msgid} = $id;
1178		1458	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1179	$self->send ("ext " . cf::to_json \%msg);
1180	}	1459	}
1181		1460
1182	=item $player->ext_event ($type, %msg)	1461	=item $player->ext_event ($type, %msg)
1183		1462
1184	Sends an ext event to the client.	1463	Sends an ext event to the client.
…		…
1199		1478
1200	package cf::region;	1479	package cf::region;
1201		1480
1202	=item cf::region::find_by_path $path	1481	=item cf::region::find_by_path $path
1203		1482
1204	Tries to decuce the probable region for a map knowing only its path.	1483	Tries to decuce the likely region for a map knowing only its path.
1205		1484
1206	=cut	1485	=cut
1207		1486
1208	sub find_by_path($) {	1487	sub find_by_path($) {
1209	my ($path) = @_;	1488	my ($path) = @_;
…		…
1283	my ($self, $merge) = @_;	1562	my ($self, $merge) = @_;
1284		1563
1285	# we have to keep some variables in memory intact	1564	# we have to keep some variables in memory intact
1286	local $self->{path};	1565	local $self->{path};
1287	local $self->{load_path};	1566	local $self->{load_path};
1288	local $self->{deny_save};
1289	local $self->{deny_reset};
1290		1567
1291	$self->SUPER::thawer_merge ($merge);	1568	$self->SUPER::thawer_merge ($merge);
1292	}	1569	}
1293		1570
1294	sub normalise {	1571	sub normalise {
…		…
1394		1671
1395	$_->change_map_light ($change)	1672	$_->change_map_light ($change)
1396	for grep $_->outdoor, values %cf::MAP;	1673	for grep $_->outdoor, values %cf::MAP;
1397	}	1674	}
1398		1675
		1676	sub decay_objects {
		1677	my ($self) = @_;
		1678
		1679	return if $self->{deny_reset};
		1680
		1681	$self->do_decay_objects;
		1682	}
		1683
1399	sub unlink_save {	1684	sub unlink_save {
1400	my ($self) = @_;	1685	my ($self) = @_;
1401		1686
1402	utf8::encode (my $save = $self->save_path);	1687	utf8::encode (my $save = $self->save_path);
1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1688	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1459	$self->load_header_orig	1744	$self->load_header_orig
1460	or return;	1745	or return;
1461	$self->prepare_orig;	1746	$self->prepare_orig;
1462	}	1747	}
1463		1748
		1749	$self->{deny_reset} = 1
		1750	if $self->no_reset;
		1751
1464	$self->default_region (cf::region::find_by_path $self->{path})	1752	$self->default_region (cf::region::find_by_path $self->{path})
1465	unless $self->default_region;	1753	unless $self->default_region;
1466		1754
1467	1	1755	1
1468	}	1756	}
…		…
1483	$map->{last_save} = $cf::RUNTIME;	1771	$map->{last_save} = $cf::RUNTIME;
1484		1772
1485	$map->load_header	1773	$map->load_header
1486	or return;	1774	or return;
1487		1775
1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1776	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489	# doing this can freeze the server in a sync job, obviously	1777	# doing this can freeze the server in a sync job, obviously
1490	#$cf::WAIT_FOR_TICK->wait;	1778	#$cf::WAIT_FOR_TICK->wait;
1491	$map->reset;	1779	$map->reset;
1492	undef $guard;	1780	undef $guard;
1493	return find $path;	1781	return find $path;
…		…
1560	my ($self, $ob) = @_;	1848	my ($self, $ob) = @_;
1561		1849
1562	return find "~" . $ob->name . "/" . $self->{path}	1850	return find "~" . $ob->name . "/" . $self->{path}
1563	if $self->per_player;	1851	if $self->per_player;
1564		1852
		1853	# return find "?party/" . $ob->name . "/" . $self->{path}
		1854	# if $self->per_party;
		1855
1565	$self	1856	$self
1566	}	1857	}
1567		1858
1568	# find and load all maps in the 3x3 area around a map	1859	# find and load all maps in the 3x3 area around a map
1569	sub load_diag {	1860	sub load_diag {
…		…
1679		1970
1680	sub reset_at {	1971	sub reset_at {
1681	my ($self) = @_;	1972	my ($self) = @_;
1682		1973
1683	# TODO: safety, remove and allow resettable per-player maps	1974	# 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};	1975	return 1e99 if $self->{deny_reset};
1686		1976
1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1977	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;	1978	my $to = List::Util::min $MAX_RESET, $self->reset_timeout \|\| $DEFAULT_RESET;
1689		1979
…		…
1700	my ($self) = @_;	1990	my ($self) = @_;
1701		1991
1702	my $lock = cf::lock_acquire "map_data:$self->{path}";	1992	my $lock = cf::lock_acquire "map_data:$self->{path}";
1703		1993
1704	return if $self->players;	1994	return if $self->players;
1705	return if $self->isa ("ext::map_per_player");#d#
1706		1995
1707	warn "resetting map ", $self->path;#d#	1996	warn "resetting map ", $self->path;
1708		1997
1709	$self->in_memory (cf::MAP_SWAPPED);	1998	$self->in_memory (cf::MAP_SWAPPED);
1710		1999
1711	# need to save uniques path	2000	# need to save uniques path
1712	unless ($self->{deny_save}) {	2001	unless ($self->{deny_save}) {
…		…
1744	$cf::MAP{$self->path} = $self;	2033	$cf::MAP{$self->path} = $self;
1745		2034
1746	$self->reset; # polite request, might not happen	2035	$self->reset; # polite request, might not happen
1747	}	2036	}
1748		2037
		2038	=item $maps = cf::map::tmp_maps
		2039
		2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	maps. May block.
		2042
		2043	=cut
		2044
		2045	sub tmp_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise $_
		2051	: ()
		2052	} @{ aio_readdir $TMPDIR or [] }
		2053	]
		2054	}
		2055
		2056	=item $maps = cf::map::random_maps
		2057
		2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	random maps. May block.
		2060
		2061	=cut
		2062
		2063	sub random_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise "?random/$_"
		2069	: ()
		2070	} @{ aio_readdir $RANDOMDIR or [] }
		2071	]
		2072	}
		2073
1749	=item cf::map::unique_maps	2074	=item cf::map::unique_maps
1750		2075
1751	Returns an arrayref of paths of all shared maps that have	2076	Returns an arrayref of paths of all shared maps that have
1752	instantiated unique items. May block.	2077	instantiated unique items. May block.
1753		2078
1754	=cut	2079	=cut
1755		2080
1756	sub unique_maps() {	2081	sub unique_maps() {
1757	my $files = aio_readdir $UNIQUEDIR	2082	[
1758	or return;	2083	map {
1759
1760	my @paths;
1761
1762	for (@$files) {
1763	utf8::decode $_;	2084	utf8::decode $_;
1764	next if /\.pst$/;	2085	/\.map$/
1765	next unless /^$PATH_SEP/o;	2086	? normalise $_
1766		2087	: ()
1767	push @paths, cf::map::normalise $_;	2088	} @{ aio_readdir $UNIQUEDIR or [] }
1768	}	2089	]
1769
1770	\@paths
1771	}	2090	}
1772		2091
1773	package cf;	2092	package cf;
1774		2093
1775	=back	2094	=back
…		…
1821		2140
1822	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	2141	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
1823		2142
1824	if ($self->{record_replies}) {	2143	if ($self->{record_replies}) {
1825	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2144	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2145
1826	} else {	2146	} else {
		2147	my $pl = $self->contr;
		2148
		2149	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2150	my $diag = $pl->{npc_dialog};
		2151	$diag->{pl}->ext_reply (
		2152	$diag->{id},
		2153	msgtype => "reply",
		2154	msg => $diag->{pl}->expand_cfpod ($msg),
		2155	add_topics => []
		2156	);
		2157
		2158	} else {
1827	$msg = $npc->name . " says: $msg" if $npc;	2159	$msg = $npc->name . " says: $msg" if $npc;
1828	$self->message ($msg, $flags);	2160	$self->message ($msg, $flags);
		2161	}
1829	}	2162	}
1830	}	2163	}
1831		2164
1832	=item $player_object->may ("access")	2165	=item $player_object->may ("access")
1833		2166
…		…
1881	$self->deactivate_recursive;	2214	$self->deactivate_recursive;
1882		2215
1883	return if UNIVERSAL::isa $self->map, "ext::map_link";	2216	return if UNIVERSAL::isa $self->map, "ext::map_link";
1884		2217
1885	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]	2218	$self->{_link_pos} \|\|= [$self->map->{path}, $self->x, $self->y]
1886	if $self->map;	2219	if $self->map && $self->map->{path} ne "{link}";
1887		2220
1888	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);	2221	$self->enter_map ($LINK_MAP \|\| link_map, 10, 10);
1889	}	2222	}
1890		2223
1891	sub cf::object::player::leave_link {	2224	sub cf::object::player::leave_link {
1892	my ($self, $map, $x, $y) = @_;	2225	my ($self, $map, $x, $y) = @_;
		2226
		2227	return unless $self->contr->active;
1893		2228
1894	my $link_pos = delete $self->{_link_pos};	2229	my $link_pos = delete $self->{_link_pos};
1895		2230
1896	unless ($map) {	2231	unless ($map) {
1897	# restore original map position	2232	# restore original map position
…		…
1920		2255
1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2256	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922	$self->enter_map ($map, $x, $y);	2257	$self->enter_map ($map, $x, $y);
1923	}	2258	}
1924		2259
1925	cf::player->attach (
1926	on_logout => sub {
1927	my ($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)	2260	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1958		2261
		2262	Moves the player to the given map-path and coordinates by first freezing
		2263	her, loading and preparing them map, calling the provided $check callback
		2264	that has to return the map if sucecssful, and then unfreezes the player on
		2265	the new (success) or old (failed) map position.
		2266
1959	=cut	2267	=cut
		2268
		2269	our $GOTOGEN;
1960		2270
1961	sub cf::object::player::goto {	2271	sub cf::object::player::goto {
1962	my ($self, $path, $x, $y) = @_;	2272	my ($self, $path, $x, $y, $check) = @_;
		2273
		2274	# do generation counting so two concurrent goto's will be executed in-order
		2275	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963		2276
1964	$self->enter_link;	2277	$self->enter_link;
1965		2278
1966	(async {	2279	(async {
1967	my $map = eval {	2280	my $map = eval {
1968	my $map = cf::map::find $path;	2281	my $map = cf::map::find $path;
		2282
		2283	if ($map) {
1969	$map = $map->customise_for ($self) if $map;	2284	$map = $map->customise_for ($self);
		2285	$map = $check->($map) if $check && $map;
		2286	} else {
		2287	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
		2288	}
		2289
1970	$map	2290	$map
		2291	};
		2292
		2293	if ($@) {
		2294	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE \| cf::NDI_RED);
		2295	LOG llevError \| logBacktrace, Carp::longmess $@;
1971	} or	2296	}
1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE \| cf::NDI_RED);
1973		2297
		2298	if ($gen == $self->{_goto_generation}) {
		2299	delete $self->{_goto_generation};
1974	$self->leave_link ($map, $x, $y);	2300	$self->leave_link ($map, $x, $y);
		2301	}
1975	})->prio (1);	2302	})->prio (1);
1976	}	2303	}
1977		2304
1978	=item $player_object->enter_exit ($exit_object)	2305	=item $player_object->enter_exit ($exit_object)
1979		2306
…		…
2048	my $hp = $exit->stats->hp;	2375	my $hp = $exit->stats->hp;
2049	my $sp = $exit->stats->sp;	2376	my $sp = $exit->stats->sp;
2050		2377
2051	$self->enter_link;	2378	$self->enter_link;
2052		2379
		2380	# if exit is damned, update players death & WoR home-position
		2381	$self->contr->savebed ($slaying, $hp, $sp)
		2382	if $exit->flag (FLAG_DAMNED);
		2383
2053	(async {	2384	(async {
2054	$self->deactivate_recursive; # just to be sure	2385	$self->deactivate_recursive; # just to be sure
2055	unless (eval {	2386	unless (eval {
2056	$self->goto ($slaying, $hp, $sp);	2387	$self->goto ($slaying, $hp, $sp);
2057		2388
…		…
2084		2415
2085	utf8::encode $text;	2416	utf8::encode $text;
2086	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);	2417	$self->send_packet (sprintf "drawinfo %d %s", $flags \|\| cf::NDI_BLACK, $text);
2087	}	2418	}
2088		2419
		2420	=item $client->send_msg ($color, $type, $msg, [extra...])
		2421
		2422	Send a drawinfo or msg packet to the client, formatting the msg for the
		2423	client if neccessary. C<$type> should be a string identifying the type of
		2424	the message, with C<log> being the default. If C<$color> is negative, suppress
		2425	the message unless the client supports the msg packet.
		2426
		2427	=cut
		2428
		2429	sub cf::client::send_msg {
		2430	my ($self, $color, $type, $msg, @extra) = @_;
		2431
		2432	$msg = $self->pl->expand_cfpod ($msg);
		2433
		2434	return unless @extra \|\| length $msg;
		2435
		2436	if ($self->can_msg) {
		2437	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2438	} else {
		2439	# replace some tags by gcfclient-compatible ones
		2440	for ($msg) {
		2441	1 while
		2442	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2443	\|\| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2444	\|\| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2445	\|\| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2446	\|\| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2447	}
		2448
		2449	if ($color >= 0) {
		2450	if (0 && $msg =~ /\[/) {
		2451	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2452	} else {
		2453	$msg =~ s/\[\/?(?:b\|i\|u\|fixed\|color)[^\]]*\]//g;
		2454	$self->send_packet ("drawinfo $color $msg")
		2455	}
		2456	}
		2457	}
		2458	}
		2459
2089	=item $client->ext_event ($type, %msg)	2460	=item $client->ext_event ($type, %msg)
2090		2461
2091	Sends an exti event to the client.	2462	Sends an ext event to the client.
2092		2463
2093	=cut	2464	=cut
2094		2465
2095	sub cf::client::ext_event($$%) {	2466	sub cf::client::ext_event($$%) {
2096	my ($self, $type, %msg) = @_;	2467	my ($self, $type, %msg) = @_;
2097		2468
2098	$msg{msgtype} = "event_$type";	2469	$msg{msgtype} = "event_$type";
2099	$self->send_packet ("ext " . cf::to_json \%msg);	2470	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
2100	}	2471	}
2101		2472
2102	=item $success = $client->query ($flags, "text", \&cb)	2473	=item $success = $client->query ($flags, "text", \&cb)
2103		2474
2104	Queues a query to the client, calling the given callback with	2475	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>,	2476	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>.	2477	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2107		2478
2108	Queries can fail, so check the return code. Or don't, as queries will become	2479	Queries can fail, so check the return code. Or don't, as queries will
2109	reliable at some point in the future.	2480	become reliable at some point in the future.
2110		2481
2111	=cut	2482	=cut
2112		2483
2113	sub cf::client::query {	2484	sub cf::client::query {
2114	my ($self, $flags, $text, $cb) = @_;	2485	my ($self, $flags, $text, $cb) = @_;
…		…
2122	utf8::encode $text;	2493	utf8::encode $text;
2123	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2494	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2124		2495
2125	$self->send_packet ($self->{query_queue}[0][0])	2496	$self->send_packet ($self->{query_queue}[0][0])
2126	if @{ $self->{query_queue} } == 1;	2497	if @{ $self->{query_queue} } == 1;
		2498
		2499	1
2127	}	2500	}
2128		2501
2129	cf::client->attach (	2502	cf::client->attach (
		2503	on_connect => sub {
		2504	my ($ns) = @_;
		2505
		2506	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2507	},
2130	on_reply => sub {	2508	on_reply => sub {
2131	my ($ns, $msg) = @_;	2509	my ($ns, $msg) = @_;
2132		2510
2133	# this weird shuffling is so that direct followup queries	2511	# this weird shuffling is so that direct followup queries
2134	# get handled first	2512	# get handled first
…		…
2146	} else {	2524	} else {
2147	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2525	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2148	}	2526	}
2149	}	2527	}
2150	},	2528	},
		2529	on_exticmd => sub {
		2530	my ($ns, $buf) = @_;
		2531
		2532	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2533
		2534	if (ref $msg) {
		2535	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2536	if (my %reply = $cb->($ns, $msg)) {
		2537	$reply{msgid} = $msg->{msgid};
		2538	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2539	}
		2540	}
		2541	} else {
		2542	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2543	}
		2544
		2545	cf::override;
		2546	},
2151	);	2547	);
2152		2548
2153	=item $client->async (\&cb)	2549	=item $client->async (\&cb)
2154		2550
2155	Create a new coroutine, running the specified callback. The coroutine will	2551	Create a new coroutine, running the specified callback. The coroutine will
…		…
2204		2600
2205	=pod	2601	=pod
2206		2602
2207	The following functions and methods are available within a safe environment:	2603	The following functions and methods are available within a safe environment:
2208		2604
2209	cf::object contr pay_amount pay_player map	2605	cf::object
		2606	contr pay_amount pay_player map x y force_find force_add
		2607	insert remove
		2608
2210	cf::object::player player	2609	cf::object::player
2211	cf::player peaceful	2610	player
2212	cf::map trigger	2611
		2612	cf::player
		2613	peaceful
		2614
		2615	cf::map
		2616	trigger
2213		2617
2214	=cut	2618	=cut
2215		2619
2216	for (	2620	for (
2217	["cf::object" => qw(contr pay_amount pay_player map)],	2621	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2622	insert remove)],
2218	["cf::object::player" => qw(player)],	2623	["cf::object::player" => qw(player)],
2219	["cf::player" => qw(peaceful)],	2624	["cf::player" => qw(peaceful)],
2220	["cf::map" => qw(trigger)],	2625	["cf::map" => qw(trigger)],
2221	) {	2626	) {
2222	no strict 'refs';	2627	no strict 'refs';
…		…
2291	}	2696	}
2292		2697
2293	=back	2698	=back
2294		2699
2295	=cut	2700	=cut
2296
2297	#############################################################################
2298
2299	=head2 EXTENSION DATABASE SUPPORT
2300
2301	Crossfire maintains a very simple database for extension use. It can
2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2303	convert to/from binary).
2304
2305	The parameter C<$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 $@;
2465	_exit 0;
2466	}
2467	}
2468
2469
2470		2701
2471	#############################################################################	2702	#############################################################################
2472	# the server's init and main functions	2703	# the server's init and main functions
2473		2704
2474	sub load_facedata($) {	2705	sub load_facedata($) {
…		…
2534	}	2765	}
2535		2766
2536	sub reload_archetypes {	2767	sub reload_archetypes {
2537	load_resource_file "$DATADIR/archetypes"	2768	load_resource_file "$DATADIR/archetypes"
2538	or die "unable to load archetypes\n";	2769	or die "unable to load archetypes\n";
		2770	#d# NEED to laod twice to resolve forward references
		2771	# this really needs to be done in an extra post-pass
		2772	# (which needs to be synchronous, so solve it differently)
		2773	load_resource_file "$DATADIR/archetypes"
		2774	or die "unable to load archetypes\n";
2539	}	2775	}
2540		2776
2541	sub reload_treasures {	2777	sub reload_treasures {
2542	load_resource_file "$DATADIR/treasures"	2778	load_resource_file "$DATADIR/treasures"
2543	or die "unable to load treasurelists\n";	2779	or die "unable to load treasurelists\n";
…		…
2546	sub reload_resources {	2782	sub reload_resources {
2547	warn "reloading resource files...\n";	2783	warn "reloading resource files...\n";
2548		2784
2549	reload_regions;	2785	reload_regions;
2550	reload_facedata;	2786	reload_facedata;
		2787	#reload_archetypes;#d#
2551	reload_archetypes;	2788	reload_archetypes;
2552	reload_treasures;	2789	reload_treasures;
2553		2790
2554	warn "finished reloading resource files\n";	2791	warn "finished reloading resource files\n";
2555	}	2792	}
…		…
2612	},	2849	},
2613	);	2850	);
2614	}	2851	}
2615	}	2852	}
2616		2853
		2854	sub write_runtime {
		2855	my $runtime = "$LOCALDIR/runtime";
		2856
		2857	# first touch the runtime file to show we are still running:
		2858	# the fsync below can take a very very long time.
		2859
		2860	IO::AIO::aio_utime $runtime, undef, undef;
		2861
		2862	my $guard = cf::lock_acquire "write_runtime";
		2863
		2864	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		2865	or return;
		2866
		2867	my $value = $cf::RUNTIME + 90 + 10;
		2868	# 10 is the runtime save interval, for a monotonic clock
		2869	# 60 allows for the watchdog to kill the server.
		2870
		2871	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2872	and return;
		2873
		2874	# always fsync - this file is important
		2875	aio_fsync $fh
		2876	and return;
		2877
		2878	# touch it again to show we are up-to-date
		2879	aio_utime $fh, undef, undef;
		2880
		2881	close $fh
		2882	or return;
		2883
		2884	aio_rename "$runtime~", $runtime
		2885	and return;
		2886
		2887	warn "runtime file written.\n";
		2888
		2889	1
		2890	}
		2891
2617	sub emergency_save() {	2892	sub emergency_save() {
2618	my $freeze_guard = cf::freeze_mainloop;	2893	my $freeze_guard = cf::freeze_mainloop;
2619		2894
2620	warn "enter emergency perl save\n";	2895	warn "enter emergency perl save\n";
2621		2896
…		…
2696	%EXT_CORO = ();	2971	%EXT_CORO = ();
2697		2972
2698	warn "removing commands";	2973	warn "removing commands";
2699	%COMMAND = ();	2974	%COMMAND = ();
2700		2975
2701	warn "removing ext commands";	2976	warn "removing ext/exti commands";
2702	%EXTCMD = ();	2977	%EXTCMD = ();
		2978	%EXTICMD = ();
2703		2979
2704	warn "unloading/nuking all extensions";	2980	warn "unloading/nuking all extensions";
2705	for my $pkg (@EXTS) {	2981	for my $pkg (@EXTS) {
2706	warn "... unloading $pkg";	2982	warn "... unloading $pkg";
2707		2983
…		…
2825	my $signal = new Coro::Signal;	3101	my $signal = new Coro::Signal;
2826	push @WAIT_FOR_TICK_BEGIN, $signal;	3102	push @WAIT_FOR_TICK_BEGIN, $signal;
2827	$signal->wait;	3103	$signal->wait;
2828	}	3104	}
2829		3105
		3106	my $min = 1e6;#d#
		3107	my $avg = 10;
2830	$TICK_WATCHER = Event->timer (	3108	$TICK_WATCHER = Event->timer (
2831	reentrant => 0,	3109	reentrant => 0,
2832	parked => 1,	3110	parked => 1,
2833	prio => 0,	3111	prio => 0,
2834	at => $NEXT_TICK \|\| $TICK,	3112	at => $NEXT_TICK \|\| $TICK,
…		…
2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3116	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839	unless ++$bug_warning > 10;	3117	unless ++$bug_warning > 10;
2840	return;	3118	return;
2841	}	3119	}
2842		3120
2843	$NOW = Event::time;	3121	$NOW = $tick_start = Event::time;
2844		3122
2845	cf::server_tick; # one server iteration	3123	cf::server_tick; # one server iteration
		3124
		3125	0 && sync_job {#d#
		3126	for(1..10) {
		3127	my $t = Event::time;
		3128	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3129	or die;
		3130
		3131	$map->width (50);
		3132	$map->height (50);
		3133	$map->alloc;
		3134	$map->_load_objects ("/tmp/x.map", 1);
		3135	my $t = Event::time - $t;
		3136
		3137	#next unless $t < 0.0013;#d#
		3138	if ($t < $min) {
		3139	$min = $t;
		3140	}
		3141	$avg = $avg * 0.99 + $t * 0.01;
		3142	}
		3143	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3144	exit 0;
		3145	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3146	};
2846		3147
2847	$RUNTIME += $TICK;	3148	$RUNTIME += $TICK;
2848	$NEXT_TICK += $TICK;	3149	$NEXT_TICK += $TICK;
2849		3150
2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3151	if ($NOW >= $NEXT_RUNTIME_WRITE) {
…		…
2856	}	3157	}
2857		3158
2858	# my $AFTER = Event::time;	3159	# my $AFTER = Event::time;
2859	# warn $AFTER - $NOW;#d#	3160	# warn $AFTER - $NOW;#d#
2860		3161
		3162	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3163	$sig->send;
		3164	}
		3165	while (my $sig = shift @WAIT_FOR_TICK) {
		3166	$sig->send;
		3167	}
		3168
		3169	$NOW = Event::time;
		3170
2861	# if we are delayed by four ticks or more, skip them all	3171	# if we are delayed by four ticks or more, skip them all
2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3172	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2863		3173
2864	$TICK_WATCHER->at ($NEXT_TICK);	3174	$TICK_WATCHER->at ($NEXT_TICK);
2865	$TICK_WATCHER->start;	3175	$TICK_WATCHER->start;
2866		3176
2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3177	$LOAD = ($NOW - $tick_start) / $TICK;
2868	$sig->send;	3178	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2869	}
2870	while (my $sig = shift @WAIT_FOR_TICK) {
2871	$sig->send;
2872	}
2873		3179
2874	_post_tick;	3180	_post_tick;
		3181
		3182
2875	},	3183	},
2876	);	3184	);
2877		3185
2878	{	3186	{
2879	BDB::max_poll_time $TICK * 0.1;	3187	BDB::max_poll_time $TICK * 0.1;

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs. Revision 1.299 by root, Sun Jul 8 14:56:05 2007 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.299 by root, Sun Jul 8 14:56:05 2007 UTC