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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.239 by root, Mon Apr 16 06:23:42 2007 UTC vs.
Revision 1.283 by root, Sun Jun 24 04:09:29 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
9	use Event;	10	use Event;
10	use Opcode;	11	use Opcode;
11	use Safe;	12	use Safe;
12	use Safe::Hole;	13	use Safe::Hole;
13		14
14	use Coro 3.52 ();	15	use Coro 3.61 ();
15	use Coro::State;	16	use Coro::State;
		17	use Coro::Handle;
16	use Coro::Event;	18	use Coro::Event;
17	use Coro::Timer;	19	use Coro::Timer;
18	use Coro::Signal;	20	use Coro::Signal;
19	use Coro::Semaphore;	21	use Coro::Semaphore;
20	use Coro::AIO;	22	use Coro::AIO;
…		…
52	our %EXT_CORO = (); # coroutines bound to extensions	54	our %EXT_CORO = (); # coroutines bound to extensions
53	our %EXT_MAP = (); # pluggable maps	55	our %EXT_MAP = (); # pluggable maps
54		56
55	our $RELOAD; # number of reloads so far	57	our $RELOAD; # number of reloads so far
56	our @EVENT;	58	our @EVENT;
57	our $LIBDIR = datadir . "/ext";
58		59
59	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $TICK_WATCHER;	73	our $TICK_WATCHER;
61	our $AIO_POLL_WATCHER;	74	our $AIO_POLL_WATCHER;
62	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
63	our $NEXT_TICK;	76	our $NEXT_TICK;
64	our $NOW;	77	our $NOW;
…		…
73	our $RUNTIME;	86	our $RUNTIME;
74		87
75	our %PLAYER; # all users	88	our %PLAYER; # all users
76	our %MAP; # all maps	89	our %MAP; # all maps
77	our $LINK_MAP; # the special {link} map, which is always available	90	our $LINK_MAP; # the special {link} map, which is always available
78	our $RANDOM_MAPS = cf::localdir . "/random";
79	our $BDB_ENV_DIR = cf::localdir . "/db";
80		91
81	# used to convert map paths into valid unix filenames by replacing / by ∕	92	# used to convert map paths into valid unix filenames by replacing / by ∕
82	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
83		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
		98
84	binmode STDOUT;	99	binmode STDOUT;
85	binmode STDERR;	100	binmode STDERR;
86		101
87	# read virtual server time, if available	102	# read virtual server time, if available
88	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
89	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
90	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
91	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
92	}	107	}
93		108
94	mkdir cf::localdir;	109	mkdir $_
95	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
96	mkdir cf::localdir . "/" . cf::tmpdir;
97	mkdir cf::localdir . "/" . cf::uniquedir;
98	mkdir $RANDOM_MAPS;
99	mkdir $BDB_ENV_DIR;
100		111
101	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
102		113
103	sub cf::map::normalise;	114	sub cf::map::normalise;
104		115
…		…
115	=item $cf::RUNTIME	126	=item $cf::RUNTIME
116		127
117	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
118	every server tick.	129	every server tick.
119		130
120	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
121		134
122	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
123	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
124		139
125	=item $cf::NOW	140	=item $cf::NOW
126		141
127	The time of the last (current) server tick.	142	The time of the last (current) server tick.
128		143
129	=item $cf::TICK	144	=item $cf::TICK
130		145
131	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
132		157
133	=item %cf::CFG	158	=item %cf::CFG
134		159
135	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
136	from wherever your confdir points to.	161	from wherever your confdir points to.
…		…
146	=cut	171	=cut
147		172
148	BEGIN {	173	BEGIN {
149	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
150	my $msg = join "", @_;	175	my $msg = join "", @_;
151	utf8::encode $msg;
152		176
153	$msg .= "\n"	177	$msg .= "\n"
154	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
155		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
156	LOG llevError, $msg;	183	LOG llevError, $msg;
157	};	184	};
158	}	185	}
159		186
160	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
161	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
162	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
163	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
164	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		192	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
165	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	193	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
166		194
167	# we bless all objects into (empty) derived classes to force a method lookup	195	# we bless all objects into (empty) derived classes to force a method lookup
168	# within the Safe compartment.	196	# within the Safe compartment.
169	for my $pkg (qw(	197	for my $pkg (qw(
170	cf::global cf::attachable	198	cf::global cf::attachable
…		…
178	}	206	}
179		207
180	$Event::DIED = sub {	208	$Event::DIED = sub {
181	warn "error in event callback: @_";	209	warn "error in event callback: @_";
182	};	210	};
		211
		212	#############################################################################
183		213
184	=head2 UTILITY FUNCTIONS	214	=head2 UTILITY FUNCTIONS
185		215
186	=over 4	216	=over 4
187		217
…		…
230	returned.	260	returned.
231		261
232	Lock names should begin with a unique identifier (for example, cf::map::find	262	Lock names should begin with a unique identifier (for example, cf::map::find
233	uses map_find and cf::map::load uses map_load).	263	uses map_find and cf::map::load uses map_load).
234		264
		265	=item $locked = cf::lock_active $string
		266
		267	Return true if the lock is currently active, i.e. somebody has locked it.
		268
235	=cut	269	=cut
236		270
237	our %LOCK;	271	our %LOCK;
238		272
239	sub lock_wait($) {	273	sub lock_wait($) {
…		…
256		290
257	Coro::guard {	291	Coro::guard {
258	# wake up all waiters, to be on the safe side	292	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	293	$_->ready for @{ delete $LOCK{$key} };
260	}	294	}
		295	}
		296
		297	sub lock_active($) {
		298	my ($key) = @_;
		299
		300	! ! $LOCK{$key}
261	}	301	}
262		302
263	sub freeze_mainloop {	303	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	304	return unless $TICK_WATCHER->is_active;
265		305
…		…
280		320
281	BEGIN { *async = \&Coro::async_pool }	321	BEGIN { *async = \&Coro::async_pool }
282		322
283	=item cf::sync_job { BLOCK }	323	=item cf::sync_job { BLOCK }
284		324
285	The design of crossfire+ requires that the main coro ($Coro::main) is	325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	326	is always able to handle events or runnable, as Crossfire TRT is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		328	acceptable.
288		329
289	If it must be done, put the blocking parts into C<sync_job>. This will run	330	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	331	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	332	server will be frozen during this time, so the block should either finish
292	fast or be very important.	333	fast or be very important.
…		…
295		336
296	sub sync_job(&) {	337	sub sync_job(&) {
297	my ($job) = @_;	338	my ($job) = @_;
298		339
299	if ($Coro::current == $Coro::main) {	340	if ($Coro::current == $Coro::main) {
		341	my $time = Event::time;
		342
300	# this is the main coro, too bad, we have to block	343	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	344	# till the operation succeeds, freezing the server :/
302		345
303	# TODO: use suspend/resume instead	346	# TODO: use suspend/resume instead
304	# (but this is cancel-safe)	347	# (but this is cancel-safe)
…		…
315		358
316	while ($busy) {	359	while ($busy) {
317	Coro::cede or Event::one_event;	360	Coro::cede or Event::one_event;
318	}	361	}
319		362
		363	$time = Event::time - $time;
		364
		365	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		366	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		367
		368	$tick_start += $time; # do not account sync jobs to server load
		369
320	wantarray ? @res : $res[0]	370	wantarray ? @res : $res[0]
321	} else {	371	} else {
322	# we are in another coroutine, how wonderful, everything just works	372	# we are in another coroutine, how wonderful, everything just works
323		373
324	$job->()	374	$job->()
…		…
343	$EXT_CORO{$coro+0} = $coro;	393	$EXT_CORO{$coro+0} = $coro;
344		394
345	$coro	395	$coro
346	}	396	}
347		397
348	sub write_runtime {	398	=item fork_call { }, $args
349	my $guard = cf::lock_acquire "write_runtime";
350		399
351	my $runtime = cf::localdir . "/runtime";	400	Executes the given code block with the given arguments in a seperate
		401	process, returning the results. Everything must be serialisable with
		402	Coro::Storable. May, of course, block. Note that the executed sub may
		403	never block itself or use any form of Event handling.
352		404
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	405	=cut
354	or return;
355		406
356	my $value = $cf::RUNTIME + 90 + 10;	407	sub fork_call(&@) {
357	# 10 is the runtime save interval, for a monotonic clock	408	my ($cb, @args) = @_;
358	# 60 allows for the watchdog to kill the server.
359		409
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
361	and return;	411	# or die "socketpair: $!";
		412	pipe my $fh1, my $fh2
		413	or die "pipe: $!";
362		414
363	# always fsync - this file is important	415	if (my $pid = fork) {
364	aio_fsync $fh
365	and return;
366
367	close $fh	416	close $fh2;
368	or return;
369		417
370	aio_rename "$runtime~", $runtime	418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
371	and return;	419	$res = Coro::Storable::thaw $res;
372		420
		421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		422
		423	die $$res unless "ARRAY" eq ref $res;
		424
		425	return wantarray ? @$res : $res->[-1];
		426	} else {
		427	reset_signals;
		428	local $SIG{__WARN__};
		429	local $SIG{__DIE__};
		430	eval {
		431	close $fh1;
		432
		433	my @res = eval { $cb->(@args) };
		434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		435	};
		436
		437	warn $@ if $@;
		438	_exit 0;
373	1	439	}
		440	}
		441
		442	=item $value = cf::db_get $family => $key
		443
		444	Returns a single value from the environment database.
		445
		446	=item cf::db_put $family => $key => $value
		447
		448	Stores the given C<$value> in the family. It can currently store binary
		449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		450
		451	=cut
		452
		453	our $DB;
		454
		455	sub db_init {
		456	unless ($DB) {
		457	$DB = BDB::db_create $DB_ENV;
		458
		459	cf::sync_job {
		460	eval {
		461	$DB->set_flags (BDB::CHKSUM);
		462
		463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		465	cf::cleanup "db_open(db): $!" if $!;
		466	};
		467	cf::cleanup "db_open(db): $@" if $@;
		468	};
		469	}
		470	}
		471
		472	sub db_get($$) {
		473	my $key = "$_[0]/$_[1]";
		474
		475	cf::sync_job {
		476	BDB::db_get $DB, undef, $key, my $data;
		477
		478	$! ? ()
		479	: $data
		480	}
		481	}
		482
		483	sub db_put($$$) {
		484	BDB::dbreq_pri 4;
		485	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		486	}
		487
		488	=item cf::cache $id => [$paths...], $processversion => $process
		489
		490	Generic caching function that returns the value of the resource $id,
		491	caching and regenerating as required.
		492
		493	This function can block.
		494
		495	=cut
		496
		497	sub cache {
		498	my ($id, $src, $processversion, $process) = @_;
		499
		500	my $meta =
		501	join "\x00",
		502	$processversion,
		503	map {
		504	aio_stat $_
		505	and Carp::croak "$_: $!";
		506
		507	($_, (stat _)[7,9])
		508	} @$src;
		509
		510	my $dbmeta = db_get cache => "$id/meta";
		511	if ($dbmeta ne $meta) {
		512	# changed, we may need to process
		513
		514	my @data;
		515	my $md5;
		516
		517	for (0 .. $#$src) {
		518	0 <= aio_load $src->[$_], $data[$_]
		519	or Carp::croak "$src->[$_]: $!";
		520	}
		521
		522	# if processing is expensive, check
		523	# checksum first
		524	if (1) {
		525	$md5 =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	Coro::cede;
		530	($src->[$_], Digest::MD5::md5_hex $data[$_])
		531	} 0.. $#$src;
		532
		533
		534	my $dbmd5 = db_get cache => "$id/md5";
		535	if ($dbmd5 eq $md5) {
		536	db_put cache => "$id/meta", $meta;
		537
		538	return db_get cache => "$id/data";
		539	}
		540	}
		541
		542	my $t1 = Time::HiRes::time;
		543	my $data = $process->(\@data);
		544	my $t2 = Time::HiRes::time;
		545
		546	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		547
		548	db_put cache => "$id/data", $data;
		549	db_put cache => "$id/md5" , $md5;
		550	db_put cache => "$id/meta", $meta;
		551
		552	return $data;
		553	}
		554
		555	db_get cache => "$id/data"
374	}	556	}
375		557
376	=item cf::datalog type => key => value, ...	558	=item cf::datalog type => key => value, ...
377		559
378	Log a datalog packet of the given type with the given key-value pairs.	560	Log a datalog packet of the given type with the given key-value pairs.
…		…
396	attach callbacks/event handlers (a collection of which is called an "attachment")	578	attach callbacks/event handlers (a collection of which is called an "attachment")
397	to it. All such attachable objects support the following methods.	579	to it. All such attachable objects support the following methods.
398		580
399	In the following description, CLASS can be any of C<global>, C<object>	581	In the following description, CLASS can be any of C<global>, C<object>
400	C<player>, C<client> or C<map> (i.e. the attachable objects in	582	C<player>, C<client> or C<map> (i.e. the attachable objects in
401	crossfire+).	583	Crossfire TRT).
402		584
403	=over 4	585	=over 4
404		586
405	=item $attachable->attach ($attachment, key => $value...)	587	=item $attachable->attach ($attachment, key => $value...)
406		588
…		…
569	$registry = $CB_TYPE[$object_type] ||= [];	751	$registry = $CB_TYPE[$object_type] ||= [];
570		752
571	} elsif ($type eq "subtype") {	753	} elsif ($type eq "subtype") {
572	defined $object_type or Carp::croak "subtype specified without type";	754	defined $object_type or Carp::croak "subtype specified without type";
573	my $object_subtype = shift @arg;	755	my $object_subtype = shift @arg;
574	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	756	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
575		757
576	} elsif ($type eq "package") {	758	} elsif ($type eq "package") {
577	my $pkg = shift @arg;	759	my $pkg = shift @arg;
578		760
579	while (my ($name, $id) = each %cb_id) {	761	while (my ($name, $id) = each %cb_id) {
…		…
608	_attach $registry, $klass, @attach;	790	_attach $registry, $klass, @attach;
609	}	791	}
610		792
611	$obj->{$name} = \%arg;	793	$obj->{$name} = \%arg;
612	} else {	794	} else {
613	warn "object uses attachment '$name' that is not available, postponing.\n";	795	warn "object uses attachment '$name' which is not available, postponing.\n";
614	}	796	}
615		797
616	$obj->{_attachment}{$name} = undef;	798	$obj->{_attachment}{$name} = undef;
617	}	799	}
618		800
…		…
620	if (ref $_[0]) {	802	if (ref $_[0]) {
621	_object_attach @_;	803	_object_attach @_;
622	} else {	804	} else {
623	_attach shift->_attach_registry, @_;	805	_attach shift->_attach_registry, @_;
624	}	806	}
		807	_recalc_want;
625	};	808	};
626		809
627	# all those should be optimised	810	# all those should be optimised
628	sub cf::attachable::detach {	811	sub cf::attachable::detach {
629	my ($obj, $name) = @_;	812	my ($obj, $name) = @_;
…		…
632	delete $obj->{_attachment}{$name};	815	delete $obj->{_attachment}{$name};
633	reattach ($obj);	816	reattach ($obj);
634	} else {	817	} else {
635	Carp::croak "cannot, currently, detach class attachments";	818	Carp::croak "cannot, currently, detach class attachments";
636	}	819	}
		820	_recalc_want;
637	};	821	};
638		822
639	sub cf::attachable::attached {	823	sub cf::attachable::attached {
640	my ($obj, $name) = @_;	824	my ($obj, $name) = @_;
641		825
…		…
814	or return;	998	or return;
815	$av = eval { (Storable::thaw $av)->{objs} };	999	$av = eval { (Storable::thaw $av)->{objs} };
816	}	1000	}
817		1001
818	warn sprintf "loading %s (%d)\n",	1002	warn sprintf "loading %s (%d)\n",
819	$filename, length $data, scalar @{$av || []};#d#	1003	$filename, length $data, scalar @{$av || []};
820	return ($data, $av);	1004	return ($data, $av);
821	}	1005	}
		1006
		1007	=head2 COMMAND CALLBACKS
		1008
		1009	=over 4
		1010
		1011	=cut
822		1012
823	#############################################################################	1013	#############################################################################
824	# command handling &c	1014	# command handling &c
825		1015
826	=item cf::register_command $name => \&callback($ob,$args);	1016	=item cf::register_command $name => \&callback($ob,$args);
…		…
839	push @{ $COMMAND{$name} }, [$caller, $cb];	1029	push @{ $COMMAND{$name} }, [$caller, $cb];
840	}	1030	}
841		1031
842	=item cf::register_extcmd $name => \&callback($pl,$packet);	1032	=item cf::register_extcmd $name => \&callback($pl,$packet);
843		1033
844	Register a callbackf ro execution when the client sends an extcmd packet.	1034	Register a callback fro execution when the client sends an extcmd packet.
845		1035
846	If the callback returns something, it is sent back as if reply was being	1036	If the callback returns something, it is sent back as if reply was being
847	called.	1037	called.
848		1038
849	=cut	1039	=cut
…		…
884		1074
885	cf::override;	1075	cf::override;
886	},	1076	},
887	);	1077	);
888		1078
889	sub load_extension {
890	my ($path) = @_;
891
892	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
893	my $base = $1;
894	my $pkg = $1;
895	$pkg =~ s/[^[:word:]]/_/g;
896	$pkg = "ext::$pkg";
897
898	warn "... loading '$path' into '$pkg'\n";
899
900	open my $fh, "<:utf8", $path
901	or die "$path: $!";
902
903	my $source =
904	"package $pkg; use strict; use utf8;\n"
905	. "#line 1 \"$path\"\n{\n"
906	. (do { local $/; <$fh> })
907	. "\n};\n1";
908
909	unless (eval $source) {
910	my $msg = $@ ? "$path: $@\n"
911	: "extension disabled.\n";
912	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
913	warn $@;
914	warn "mandatory extension failed to load, exiting.\n";
915	exit 1;
916	}
917	die $@;
918	}
919
920	push @EXTS, $pkg;
921	}
922
923	sub load_extensions {	1079	sub load_extensions {
		1080	cf::sync_job {
		1081	my %todo;
		1082
924	for my $ext (<$LIBDIR/*.ext>) {	1083	for my $path (<$LIBDIR/*.ext>) {
925	next unless -r $ext;	1084	next unless -r $path;
926	eval {	1085
927	load_extension $ext;	1086	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1087	my $base = $1;
		1088	my $pkg = $1;
		1089	$pkg =~ s/[^[:word:]]/_/g;
		1090	$pkg = "ext::$pkg";
		1091
		1092	open my $fh, "<:utf8", $path
		1093	or die "$path: $!";
		1094
		1095	my $source = do { local $/; <$fh> };
		1096
		1097	my %ext = (
		1098	path => $path,
		1099	base => $base,
		1100	pkg => $pkg,
		1101	);
		1102
		1103	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1104	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1105
		1106	$ext{source} =
		1107	"package $pkg; use strict; use utf8;\n"
		1108	. "#line 1 \"$path\"\n{\n"
		1109	. $source
		1110	. "\n};\n1";
		1111
		1112	$todo{$base} = \%ext;
		1113	}
		1114
		1115	my %done;
		1116	while (%todo) {
		1117	my $progress;
		1118
		1119	while (my ($k, $v) = each %todo) {
		1120	for (split /,\s*/, $v->{meta}{depends}) {
		1121	goto skip
		1122	unless exists $done{$_};
		1123	}
		1124
		1125	warn "... loading '$k' into '$v->{pkg}'\n";
		1126
		1127	unless (eval $v->{source}) {
		1128	my $msg = $@ ? "$v->{path}: $@\n"
		1129	: "$v->{base}: extension inactive.\n";
		1130
		1131	if (exists $v->{meta}{mandatory}) {
		1132	warn $msg;
		1133	warn "mandatory extension failed to load, exiting.\n";
		1134	exit 1;
		1135	}
		1136
		1137	warn $msg;
		1138	}
		1139
		1140	$done{$k} = delete $todo{$k};
		1141	push @EXTS, $v->{pkg};
		1142	$progress = 1;
928	1	1143	}
929	} or warn "$ext not loaded: $@";	1144
		1145	skip:
		1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1147	unless $progress;
		1148	}
930	}	1149	};
931	}	1150	}
932		1151
933	#############################################################################	1152	#############################################################################
934		1153
		1154	=back
		1155
935	=head2 CORE EXTENSIONS	1156	=head2 CORE EXTENSIONS
936		1157
937	Functions and methods that extend core crossfire objects.	1158	Functions and methods that extend core crossfire objects.
938		1159
939	=cut	1160	=cut
…		…
951	Returns the given player object, loading it if necessary (might block).	1172	Returns the given player object, loading it if necessary (might block).
952		1173
953	=cut	1174	=cut
954		1175
955	sub playerdir($) {	1176	sub playerdir($) {
956	cf::localdir	1177	"$PLAYERDIR/"
957	. "/"
958	. cf::playerdir
959	. "/"
960	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1178	. (ref $_[0] ? $_[0]->ob->name : $_[0])
961	}	1179	}
962		1180
963	sub path($) {	1181	sub path($) {
964	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1182	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
1084	while and may block, so not sync_job-capable, ever.	1302	while and may block, so not sync_job-capable, ever.
1085		1303
1086	=cut	1304	=cut
1087		1305
1088	sub list_logins {	1306	sub list_logins {
1089	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1307	my $dirs = aio_readdir $PLAYERDIR
1090	or return [];	1308	or return [];
1091		1309
1092	my @logins;	1310	my @logins;
1093		1311
1094	for my $login (@$dirs) {	1312	for my $login (@$dirs) {
…		…
1129	}	1347	}
1130		1348
1131	\@paths	1349	\@paths
1132	}	1350	}
1133		1351
		1352	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1353
		1354	Expand crossfire pod fragments into protocol xml.
		1355
		1356	=cut
		1357
		1358	sub expand_cfpod {
		1359	((my $self), (local $_)) = @_;
		1360
		1361	# escape & and <
		1362	s/&/&amp;/g;
		1363	s/(?<![BIUGH])</&lt;/g;
		1364
		1365	# this is buggy, it needs to properly take care of nested <'s
		1366
		1367	1 while
		1368	# replace B<>, I<>, U<> etc.
		1369	s/B<([^\>]*)>/<b>$1<\/b>/
		1370	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1371	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1372	# replace G<male|female> tags
		1373	|| s{G<([^>|]*)\|([^>]*)>}{
		1374	$self->gender ? $2 : $1
		1375	}ge
		1376	# replace H<hint text>
		1377	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1378
		1379	# create single paragraphs (very hackish)
		1380	s/(?<=\S)\n(?=\w)/ /g;
		1381
		1382	$_
		1383	}
		1384
1134	=item $player->ext_reply ($msgid, %msg)	1385	=item $player->ext_reply ($msgid, %msg)
1135		1386
1136	Sends an ext reply to the player.	1387	Sends an ext reply to the player.
1137		1388
1138	=cut	1389	=cut
…		…
1165		1416
1166	package cf::region;	1417	package cf::region;
1167		1418
1168	=item cf::region::find_by_path $path	1419	=item cf::region::find_by_path $path
1169		1420
1170	Tries to decuce the probable region for a map knowing only its path.	1421	Tries to decuce the likely region for a map knowing only its path.
1171		1422
1172	=cut	1423	=cut
1173		1424
1174	sub find_by_path($) {	1425	sub find_by_path($) {
1175	my ($path) = @_;	1426	my ($path) = @_;
…		…
1249	my ($self, $merge) = @_;	1500	my ($self, $merge) = @_;
1250		1501
1251	# we have to keep some variables in memory intact	1502	# we have to keep some variables in memory intact
1252	local $self->{path};	1503	local $self->{path};
1253	local $self->{load_path};	1504	local $self->{load_path};
1254	local $self->{deny_save};
1255	local $self->{deny_reset};
1256		1505
1257	$self->SUPER::thawer_merge ($merge);	1506	$self->SUPER::thawer_merge ($merge);
1258	}	1507	}
1259		1508
1260	sub normalise {	1509	sub normalise {
…		…
1332		1581
1333	# the original (read-only) location	1582	# the original (read-only) location
1334	sub load_path {	1583	sub load_path {
1335	my ($self) = @_;	1584	my ($self) = @_;
1336		1585
1337	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1586	"$MAPDIR/$self->{path}.map"
1338	}	1587	}
1339		1588
1340	# the temporary/swap location	1589	# the temporary/swap location
1341	sub save_path {	1590	sub save_path {
1342	my ($self) = @_;	1591	my ($self) = @_;
1343		1592
1344	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1593	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1345	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1594	"$TMPDIR/$path.map"
1346	}	1595	}
1347		1596
1348	# the unique path, undef == no special unique path	1597	# the unique path, undef == no special unique path
1349	sub uniq_path {	1598	sub uniq_path {
1350	my ($self) = @_;	1599	my ($self) = @_;
1351		1600
1352	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1601	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1353	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1602	"$UNIQUEDIR/$path"
1354	}	1603	}
1355		1604
1356	# and all this just because we cannot iterate over	1605	# and all this just because we cannot iterate over
1357	# all maps in C++...	1606	# all maps in C++...
1358	sub change_all_map_light {	1607	sub change_all_map_light {
1359	my ($change) = @_;	1608	my ($change) = @_;
1360		1609
1361	$_->change_map_light ($change)	1610	$_->change_map_light ($change)
1362	for grep $_->outdoor, values %cf::MAP;	1611	for grep $_->outdoor, values %cf::MAP;
		1612	}
		1613
		1614	sub decay_objects {
		1615	my ($self) = @_;
		1616
		1617	return if $self->{deny_reset};
		1618
		1619	$self->do_decay_objects;
1363	}	1620	}
1364		1621
1365	sub unlink_save {	1622	sub unlink_save {
1366	my ($self) = @_;	1623	my ($self) = @_;
1367		1624
…		…
1425	$self->load_header_orig	1682	$self->load_header_orig
1426	or return;	1683	or return;
1427	$self->prepare_orig;	1684	$self->prepare_orig;
1428	}	1685	}
1429		1686
		1687	$self->{deny_reset} = 1
		1688	if $self->no_reset;
		1689
1430	$self->default_region (cf::region::find_by_path $self->{path})	1690	$self->default_region (cf::region::find_by_path $self->{path})
1431	unless $self->default_region;	1691	unless $self->default_region;
1432		1692
1433	1	1693	1
1434	}	1694	}
…		…
1449	$map->{last_save} = $cf::RUNTIME;	1709	$map->{last_save} = $cf::RUNTIME;
1450		1710
1451	$map->load_header	1711	$map->load_header
1452	or return;	1712	or return;
1453		1713
1454	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1714	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1455	# doing this can freeze the server in a sync job, obviously	1715	# doing this can freeze the server in a sync job, obviously
1456	#$cf::WAIT_FOR_TICK->wait;	1716	#$cf::WAIT_FOR_TICK->wait;
1457	$map->reset;	1717	$map->reset;
1458	undef $guard;	1718	undef $guard;
1459	return find $path;	1719	return find $path;
…		…
1470	my ($self) = @_;	1730	my ($self) = @_;
1471		1731
1472	local $self->{deny_reset} = 1; # loading can take a long time	1732	local $self->{deny_reset} = 1; # loading can take a long time
1473		1733
1474	my $path = $self->{path};	1734	my $path = $self->{path};
		1735
		1736	{
1475	my $guard = cf::lock_acquire "map_load:$path";	1737	my $guard = cf::lock_acquire "map_load:$path";
1476		1738
1477	return if $self->in_memory != cf::MAP_SWAPPED;	1739	return if $self->in_memory != cf::MAP_SWAPPED;
1478		1740
1479	$self->in_memory (cf::MAP_LOADING);	1741	$self->in_memory (cf::MAP_LOADING);
1480		1742
1481	$self->alloc;	1743	$self->alloc;
1482		1744
1483	$self->pre_load;	1745	$self->pre_load;
1484	Coro::cede;
1485
1486	$self->_load_objects ($self->{load_path}, 1)
1487	or return;
1488
1489	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1490	if delete $self->{load_original};
1491
1492	if (my $uniq = $self->uniq_path) {
1493	utf8::encode $uniq;
1494	if (aio_open $uniq, O_RDONLY, 0) {
1495	$self->clear_unique_items;
1496	$self->_load_objects ($uniq, 0);
1497	}
1498	}
1499
1500	Coro::cede;
1501	# now do the right thing for maps
1502	$self->link_multipart_objects;
1503	Coro::cede;
1504
1505	unless ($self->{deny_activate}) {
1506	$self->decay_objects;
1507	$self->fix_auto_apply;
1508	$self->update_buttons;
1509	Coro::cede;	1746	Coro::cede;
1510	$self->set_darkness_map;	1747
		1748	$self->_load_objects ($self->{load_path}, 1)
		1749	or return;
		1750
		1751	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1752	if delete $self->{load_original};
		1753
		1754	if (my $uniq = $self->uniq_path) {
		1755	utf8::encode $uniq;
		1756	if (aio_open $uniq, O_RDONLY, 0) {
		1757	$self->clear_unique_items;
		1758	$self->_load_objects ($uniq, 0);
		1759	}
		1760	}
		1761
		1762	Coro::cede;
		1763	# now do the right thing for maps
		1764	$self->link_multipart_objects;
1511	$self->difficulty ($self->estimate_difficulty)	1765	$self->difficulty ($self->estimate_difficulty)
1512	unless $self->difficulty;	1766	unless $self->difficulty;
1513	Coro::cede;	1767	Coro::cede;
		1768
		1769	unless ($self->{deny_activate}) {
		1770	$self->decay_objects;
		1771	$self->fix_auto_apply;
		1772	$self->update_buttons;
		1773	Coro::cede;
		1774	$self->set_darkness_map;
		1775	Coro::cede;
1514	$self->activate;	1776	$self->activate;
1515	Coro::cede;	1777	}
		1778
		1779	$self->in_memory (cf::MAP_IN_MEMORY);
1516	}	1780	}
1517		1781
1518	$self->post_load;	1782	$self->post_load;
1519	Coro::cede;
1520
1521	$self->in_memory (cf::MAP_IN_MEMORY);
1522	}	1783	}
1523		1784
1524	sub customise_for {	1785	sub customise_for {
1525	my ($self, $ob) = @_;	1786	my ($self, $ob) = @_;
1526		1787
1527	return find "~" . $ob->name . "/" . $self->{path}	1788	return find "~" . $ob->name . "/" . $self->{path}
1528	if $self->per_player;	1789	if $self->per_player;
		1790
		1791	# return find "?party/" . $ob->name . "/" . $self->{path}
		1792	# if $self->per_party;
1529		1793
1530	$self	1794	$self
1531	}	1795	}
1532		1796
1533	# find and load all maps in the 3x3 area around a map	1797	# find and load all maps in the 3x3 area around a map
…		…
1644		1908
1645	sub reset_at {	1909	sub reset_at {
1646	my ($self) = @_;	1910	my ($self) = @_;
1647		1911
1648	# TODO: safety, remove and allow resettable per-player maps	1912	# TODO: safety, remove and allow resettable per-player maps
1649	return 1e99 if $self->isa ("ext::map_per_player");#d#
1650	return 1e99 if $self->{deny_reset};	1913	return 1e99 if $self->{deny_reset};
1651		1914
1652	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1915	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1653	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1916	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1654		1917
…		…
1665	my ($self) = @_;	1928	my ($self) = @_;
1666		1929
1667	my $lock = cf::lock_acquire "map_data:$self->{path}";	1930	my $lock = cf::lock_acquire "map_data:$self->{path}";
1668		1931
1669	return if $self->players;	1932	return if $self->players;
1670	return if $self->isa ("ext::map_per_player");#d#
1671		1933
1672	warn "resetting map ", $self->path;#d#	1934	warn "resetting map ", $self->path;
1673		1935
1674	$self->in_memory (cf::MAP_SWAPPED);	1936	$self->in_memory (cf::MAP_SWAPPED);
1675		1937
1676	# need to save uniques path	1938	# need to save uniques path
1677	unless ($self->{deny_save}) {	1939	unless ($self->{deny_save}) {
…		…
1709	$cf::MAP{$self->path} = $self;	1971	$cf::MAP{$self->path} = $self;
1710		1972
1711	$self->reset; # polite request, might not happen	1973	$self->reset; # polite request, might not happen
1712	}	1974	}
1713		1975
		1976	=item $maps = cf::map::tmp_maps
		1977
		1978	Returns an arrayref with all map paths of currently instantiated and saved
		1979	maps. May block.
		1980
		1981	=cut
		1982
		1983	sub tmp_maps() {
		1984	[
		1985	map {
		1986	utf8::decode $_;
		1987	/\.map$/
		1988	? normalise $_
		1989	: ()
		1990	} @{ aio_readdir $TMPDIR or [] }
		1991	]
		1992	}
		1993
		1994	=item $maps = cf::map::random_maps
		1995
		1996	Returns an arrayref with all map paths of currently instantiated and saved
		1997	random maps. May block.
		1998
		1999	=cut
		2000
		2001	sub random_maps() {
		2002	[
		2003	map {
		2004	utf8::decode $_;
		2005	/\.map$/
		2006	? normalise "?random/$_"
		2007	: ()
		2008	} @{ aio_readdir $RANDOMDIR or [] }
		2009	]
		2010	}
		2011
1714	=item cf::map::unique_maps	2012	=item cf::map::unique_maps
1715		2013
1716	Returns an arrayref of paths of all shared maps that have	2014	Returns an arrayref of paths of all shared maps that have
1717	instantiated unique items. May block.	2015	instantiated unique items. May block.
1718		2016
1719	=cut	2017	=cut
1720		2018
1721	sub unique_maps() {	2019	sub unique_maps() {
1722	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2020	[
1723	or return;	2021	map {
1724
1725	my @paths;
1726
1727	for (@$files) {
1728	utf8::decode $_;	2022	utf8::decode $_;
1729	next if /\.pst$/;	2023	/\.map$/
1730	next unless /^$PATH_SEP/o;	2024	? normalise $_
1731		2025	: ()
1732	push @paths, cf::map::normalise $_;	2026	} @{ aio_readdir $UNIQUEDIR or [] }
1733	}	2027	]
1734
1735	\@paths
1736	}	2028	}
1737		2029
1738	package cf;	2030	package cf;
1739		2031
1740	=back	2032	=back
…		…
1786		2078
1787	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2079	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1788		2080
1789	if ($self->{record_replies}) {	2081	if ($self->{record_replies}) {
1790	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2082	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2083
1791	} else {	2084	} else {
		2085	my $pl = $self->contr;
		2086
		2087	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2088	my $diag = $pl->{npc_dialog};
		2089	$diag->{pl}->ext_reply (
		2090	$diag->{id},
		2091	msgtype => "reply",
		2092	msg => $diag->{pl}->expand_cfpod ($msg),
		2093	add_topics => []
		2094	);
		2095
		2096	} else {
1792	$msg = $npc->name . " says: $msg" if $npc;	2097	$msg = $npc->name . " says: $msg" if $npc;
1793	$self->message ($msg, $flags);	2098	$self->message ($msg, $flags);
		2099	}
1794	}	2100	}
1795	}	2101	}
1796		2102
1797	=item $player_object->may ("access")	2103	=item $player_object->may ("access")
1798		2104
…		…
1846	$self->deactivate_recursive;	2152	$self->deactivate_recursive;
1847		2153
1848	return if UNIVERSAL::isa $self->map, "ext::map_link";	2154	return if UNIVERSAL::isa $self->map, "ext::map_link";
1849		2155
1850	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2156	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1851	if $self->map;	2157	if $self->map && $self->map->{path} ne "{link}";
1852		2158
1853	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2159	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1854	}	2160	}
1855		2161
1856	sub cf::object::player::leave_link {	2162	sub cf::object::player::leave_link {
1857	my ($self, $map, $x, $y) = @_;	2163	my ($self, $map, $x, $y) = @_;
		2164
		2165	return unless $self->contr->active;
1858		2166
1859	my $link_pos = delete $self->{_link_pos};	2167	my $link_pos = delete $self->{_link_pos};
1860		2168
1861	unless ($map) {	2169	unless ($map) {
1862	# restore original map position	2170	# restore original map position
…		…
1885		2193
1886	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2194	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1887	$self->enter_map ($map, $x, $y);	2195	$self->enter_map ($map, $x, $y);
1888	}	2196	}
1889		2197
1890	cf::player->attach (
1891	on_logout => sub {
1892	my ($pl) = @_;
1893
1894	# abort map switching before logout
1895	if ($pl->ob->{_link_pos}) {
1896	cf::sync_job {
1897	$pl->ob->leave_link
1898	};
1899	}
1900	},
1901	on_login => sub {
1902	my ($pl) = @_;
1903
1904	# try to abort aborted map switching on player login :)
1905	# should happen only on crashes
1906	if ($pl->ob->{_link_pos}) {
1907	$pl->ob->enter_link;
1908	(async {
1909	$pl->ob->reply (undef,
1910	"There was an internal problem at your last logout, "
1911	. "the server will try to bring you to your intended destination in a second.",
1912	cf::NDI_RED);
1913	# we need this sleep as the login has a concurrent enter_exit running
1914	# and this sleep increases chances of the player not ending up in scorn
1915	Coro::Timer::sleep 1;
1916	$pl->ob->leave_link;
1917	})->prio (2);
1918	}
1919	},
1920	);
1921
1922	=item $player_object->goto ($path, $x, $y)	2198	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1923		2199
		2200	Moves the player to the given map-path and coordinates by first freezing
		2201	her, loading and preparing them map, calling the provided $check callback
		2202	that has to return the map if sucecssful, and then unfreezes the player on
		2203	the new (success) or old (failed) map position.
		2204
1924	=cut	2205	=cut
		2206
		2207	our $GOTOGEN;
1925		2208
1926	sub cf::object::player::goto {	2209	sub cf::object::player::goto {
1927	my ($self, $path, $x, $y) = @_;	2210	my ($self, $path, $x, $y, $check) = @_;
		2211
		2212	# do generation counting so two concurrent goto's will be executed in-order
		2213	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1928		2214
1929	$self->enter_link;	2215	$self->enter_link;
1930		2216
1931	(async {	2217	(async {
1932	my $map = eval {	2218	my $map = eval {
1933	my $map = cf::map::find $path;	2219	my $map = cf::map::find $path;
		2220
		2221	if ($map) {
1934	$map = $map->customise_for ($self) if $map;	2222	$map = $map->customise_for ($self);
		2223	$map = $check->($map) if $check && $map;
		2224	} else {
		2225	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2226	}
		2227
1935	$map	2228	$map
		2229	};
		2230
		2231	if ($@) {
		2232	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2233	LOG llevError | logBacktrace, Carp::longmess $@;
1936	} or	2234	}
1937	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1938		2235
		2236	if ($gen == $self->{_goto_generation}) {
		2237	delete $self->{_goto_generation};
1939	$self->leave_link ($map, $x, $y);	2238	$self->leave_link ($map, $x, $y);
		2239	}
1940	})->prio (1);	2240	})->prio (1);
1941	}	2241	}
1942		2242
1943	=item $player_object->enter_exit ($exit_object)	2243	=item $player_object->enter_exit ($exit_object)
1944		2244
…		…
1983		2283
1984	$rmp->{random_seed} ||= $exit->random_seed;	2284	$rmp->{random_seed} ||= $exit->random_seed;
1985		2285
1986	my $data = cf::to_json $rmp;	2286	my $data = cf::to_json $rmp;
1987	my $md5 = Digest::MD5::md5_hex $data;	2287	my $md5 = Digest::MD5::md5_hex $data;
1988	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2288	my $meta = "$RANDOMDIR/$md5.meta";
1989		2289
1990	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2290	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1991	aio_write $fh, 0, (length $data), $data, 0;	2291	aio_write $fh, 0, (length $data), $data, 0;
1992	undef $fh;	2292	undef $fh;
1993	aio_rename "$meta~", $meta;	2293	aio_rename "$meta~", $meta;
…		…
2047	sub cf::client::send_drawinfo {	2347	sub cf::client::send_drawinfo {
2048	my ($self, $text, $flags) = @_;	2348	my ($self, $text, $flags) = @_;
2049		2349
2050	utf8::encode $text;	2350	utf8::encode $text;
2051	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2351	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
		2352	}
		2353
		2354	=item $client->send_msg ($color, $type, $msg, [extra...])
		2355
		2356	Send a drawinfo or msg packet to the client, formatting the msg for the
		2357	client if neccessary. C<$type> should be a string identifying the type of
		2358	the message, with C<log> being the default. If C<$color> is negative, suppress
		2359	the message unless the client supports the msg packet.
		2360
		2361	=cut
		2362
		2363	sub cf::client::send_msg {
		2364	my ($self, $color, $type, $msg, @extra) = @_;
		2365
		2366	$msg = $self->pl->expand_cfpod ($msg);
		2367
		2368	if ($self->can_msg) {
		2369	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2370	} else {
		2371	# replace some tags by gcfclient-compatible ones
		2372	for ($msg) {
		2373	1 while
		2374	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2375	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2376	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2377	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2378	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${1}[\/color]/;
		2379	}
		2380
		2381	if ($color >= 0) {
		2382	if ($msg =~ /\[/) {
		2383	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2384	} else {
		2385	$self->send_packet ("drawinfo $color $msg")
		2386	}
		2387	}
		2388	}
2052	}	2389	}
2053		2390
2054	=item $client->ext_event ($type, %msg)	2391	=item $client->ext_event ($type, %msg)
2055		2392
2056	Sends an exti event to the client.	2393	Sends an exti event to the client.
…		…
2258	=back	2595	=back
2259		2596
2260	=cut	2597	=cut
2261		2598
2262	#############################################################################	2599	#############################################################################
2263
2264	=head2 EXTENSION DATABASE SUPPORT
2265
2266	Crossfire maintains a very simple database for extension use. It can
2267	currently store anything that can be serialised using Storable, which
2268	excludes objects.
2269
2270	The parameter C<$family> should best start with the name of the extension
2271	using it, it should be unique.
2272
2273	=over 4
2274
2275	=item $value = cf::db_get $family => $key
2276
2277	Returns a single value from the database.
2278
2279	=item cf::db_put $family => $key => $value
2280
2281	Stores the given C<$value> in the family.
2282
2283	=cut
2284
2285	our $DB;
2286
2287	sub db_init {
2288	unless ($DB) {
2289	$DB = BDB::db_create $DB_ENV;
2290
2291	cf::sync_job {
2292	eval {
2293	$DB->set_flags (BDB::CHKSUM);
2294
2295	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2296	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2297	cf::cleanup "db_open(db): $!" if $!;
2298	};
2299	cf::cleanup "db_open(db): $@" if $@;
2300	};
2301
2302	my $path = cf::localdir . "/database.pst";
2303	if (stat $path) {
2304	cf::sync_job {
2305	my $pst = Storable::retrieve $path;
2306
2307	cf::db_put (board => data => $pst->{board});
2308	cf::db_put (guildrules => data => $pst->{guildrules});
2309	cf::db_put (rent => balance => $pst->{rent}{balance});
2310	BDB::db_env_txn_checkpoint $DB_ENV;
2311
2312	unlink $path;
2313	};
2314	}
2315	}
2316	}
2317
2318	sub db_get($$) {
2319	my $key = "$_[0]/$_[1]";
2320
2321	cf::sync_job {
2322	BDB::db_get $DB, undef, $key, my $data;
2323
2324	$! ? ()
2325	: Compress::LZF::sthaw $data
2326	}
2327	}
2328
2329	sub db_put($$$) {
2330	BDB::dbreq_pri 4;
2331	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2332	}
2333
2334	#############################################################################
2335	# the server's init and main functions	2600	# the server's init and main functions
2336		2601
2337	sub load_facedata {	2602	sub load_facedata($) {
2338	my $path = sprintf "%s/facedata", cf::datadir;	2603	my ($path) = @_;
2339		2604
2340	warn "loading facedata from $path\n";	2605	warn "loading facedata from $path\n";
2341		2606
2342	my $facedata;	2607	my $facedata;
2343	0 < aio_load $path, $facedata	2608	0 < aio_load $path, $facedata
…		…
2384	}	2649	}
2385		2650
2386	1	2651	1
2387	}	2652	}
2388		2653
		2654	sub reload_regions {
		2655	load_resource_file "$MAPDIR/regions"
		2656	or die "unable to load regions file\n";
		2657	}
		2658
		2659	sub reload_facedata {
		2660	load_facedata "$DATADIR/facedata"
		2661	or die "unable to load facedata\n";
		2662	}
		2663
		2664	sub reload_archetypes {
		2665	load_resource_file "$DATADIR/archetypes"
		2666	or die "unable to load archetypes\n";
		2667	}
		2668
		2669	sub reload_treasures {
		2670	load_resource_file "$DATADIR/treasures"
		2671	or die "unable to load treasurelists\n";
		2672	}
		2673
2389	sub reload_resources {	2674	sub reload_resources {
2390	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2675	warn "reloading resource files...\n";
2391	or die "unable to load regions file\n";#d#	2676
		2677	reload_regions;
2392	load_facedata	2678	reload_facedata;
2393	or die "unable to load facedata\n";#d#	2679	#reload_archetypes;#d#
		2680	reload_archetypes;
		2681	reload_treasures;
		2682
		2683	warn "finished reloading resource files\n";
2394	}	2684	}
2395		2685
2396	sub init {	2686	sub init {
2397	reload_resources;	2687	reload_resources;
2398	}	2688	}
2399		2689
2400	sub cfg_load {	2690	sub cfg_load {
2401	open my $fh, "<:utf8", cf::confdir . "/config"	2691	open my $fh, "<:utf8", "$CONFDIR/config"
2402	or return;	2692	or return;
2403		2693
2404	local $/;	2694	local $/;
2405	*CFG = YAML::Syck::Load <$fh>;	2695	*CFG = YAML::Syck::Load <$fh>;
2406		2696
…		…
2451	},	2741	},
2452	);	2742	);
2453	}	2743	}
2454	}	2744	}
2455		2745
		2746	sub write_runtime {
		2747	my $runtime = "$LOCALDIR/runtime";
		2748
		2749	# first touch the runtime file to show we are still running:
		2750	# the fsync below can take a very very long time.
		2751
		2752	IO::AIO::aio_utime $runtime, undef, undef;
		2753
		2754	my $guard = cf::lock_acquire "write_runtime";
		2755
		2756	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2757	or return;
		2758
		2759	my $value = $cf::RUNTIME + 90 + 10;
		2760	# 10 is the runtime save interval, for a monotonic clock
		2761	# 60 allows for the watchdog to kill the server.
		2762
		2763	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2764	and return;
		2765
		2766	# always fsync - this file is important
		2767	aio_fsync $fh
		2768	and return;
		2769
		2770	# touch it again to show we are up-to-date
		2771	aio_utime $fh, undef, undef;
		2772
		2773	close $fh
		2774	or return;
		2775
		2776	aio_rename "$runtime~", $runtime
		2777	and return;
		2778
		2779	warn "runtime file written.\n";
		2780
		2781	1
		2782	}
		2783
2456	sub emergency_save() {	2784	sub emergency_save() {
2457	my $freeze_guard = cf::freeze_mainloop;	2785	my $freeze_guard = cf::freeze_mainloop;
2458		2786
2459	warn "enter emergency perl save\n";	2787	warn "enter emergency perl save\n";
2460		2788
…		…
2491		2819
2492	warn Carp::longmess "post_cleanup backtrace"	2820	warn Carp::longmess "post_cleanup backtrace"
2493	if $make_core;	2821	if $make_core;
2494	}	2822	}
2495		2823
2496	sub reload() {	2824	sub do_reload_perl() {
2497	# can/must only be called in main	2825	# can/must only be called in main
2498	if ($Coro::current != $Coro::main) {	2826	if ($Coro::current != $Coro::main) {
2499	warn "can only reload from main coroutine";	2827	warn "can only reload from main coroutine";
2500	return;	2828	return;
2501	}	2829	}
…		…
2576	Symbol::delete_package "safe::$_"	2904	Symbol::delete_package "safe::$_"
2577	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2905	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2578		2906
2579	warn "unloading cf.pm \"a bit\"";	2907	warn "unloading cf.pm \"a bit\"";
2580	delete $INC{"cf.pm"};	2908	delete $INC{"cf.pm"};
		2909	delete $INC{"cf/pod.pm"};
2581		2910
2582	# don't, removes xs symbols, too,	2911	# don't, removes xs symbols, too,
2583	# and global variables created in xs	2912	# and global variables created in xs
2584	#Symbol::delete_package __PACKAGE__;	2913	#Symbol::delete_package __PACKAGE__;
2585		2914
…		…
2600	warn "reattaching attachments to maps";	2929	warn "reattaching attachments to maps";
2601	reattach $_ for values %MAP;	2930	reattach $_ for values %MAP;
2602	warn "reattaching attachments to players";	2931	warn "reattaching attachments to players";
2603	reattach $_ for values %PLAYER;	2932	reattach $_ for values %PLAYER;
2604		2933
2605	warn "loading reloadable resources";
2606	reload_resources;
2607
2608	warn "leaving sync_job";	2934	warn "leaving sync_job";
2609		2935
2610	1	2936	1
2611	} or do {	2937	} or do {
2612	warn $@;	2938	warn $@;
…		…
2617	warn "reloaded";	2943	warn "reloaded";
2618	};	2944	};
2619		2945
2620	our $RELOAD_WATCHER; # used only during reload	2946	our $RELOAD_WATCHER; # used only during reload
2621		2947
		2948	sub reload_perl() {
		2949	# doing reload synchronously and two reloads happen back-to-back,
		2950	# coro crashes during coro_state_free->destroy here.
		2951
		2952	$RELOAD_WATCHER ||= Event->timer (
		2953	reentrant => 0,
		2954	after => 0,
		2955	data => WF_AUTOCANCEL,
		2956	cb => sub {
		2957	do_reload_perl;
		2958	undef $RELOAD_WATCHER;
		2959	},
		2960	);
		2961	}
		2962
2622	register_command "reload" => sub {	2963	register_command "reload" => sub {
2623	my ($who, $arg) = @_;	2964	my ($who, $arg) = @_;
2624		2965
2625	if ($who->flag (FLAG_WIZ)) {	2966	if ($who->flag (FLAG_WIZ)) {
2626	$who->message ("reloading server.");	2967	$who->message ("reloading server.");
2627		2968	async { reload_perl };
2628	# doing reload synchronously and two reloads happen back-to-back,
2629	# coro crashes during coro_state_free->destroy here.
2630
2631	$RELOAD_WATCHER ||= Event->timer (
2632	reentrant => 0,
2633	after => 0,
2634	data => WF_AUTOCANCEL,
2635	cb => sub {
2636	reload;
2637	undef $RELOAD_WATCHER;
2638	},
2639	);
2640	}	2969	}
2641	};	2970	};
2642		2971
2643	unshift @INC, $LIBDIR;	2972	unshift @INC, $LIBDIR;
2644		2973
…		…
2646		2975
2647	our @WAIT_FOR_TICK;	2976	our @WAIT_FOR_TICK;
2648	our @WAIT_FOR_TICK_BEGIN;	2977	our @WAIT_FOR_TICK_BEGIN;
2649		2978
2650	sub wait_for_tick {	2979	sub wait_for_tick {
		2980	return unless $TICK_WATCHER->is_active;
		2981	return if $Coro::current == $Coro::main;
		2982
2651	my $signal = new Coro::Signal;	2983	my $signal = new Coro::Signal;
2652	push @WAIT_FOR_TICK, $signal;	2984	push @WAIT_FOR_TICK, $signal;
2653	$signal->wait;	2985	$signal->wait;
2654	}	2986	}
2655		2987
2656	sub wait_for_tick_begin {	2988	sub wait_for_tick_begin {
		2989	return unless $TICK_WATCHER->is_active;
		2990	return if $Coro::current == $Coro::main;
		2991
2657	my $signal = new Coro::Signal;	2992	my $signal = new Coro::Signal;
2658	push @WAIT_FOR_TICK_BEGIN, $signal;	2993	push @WAIT_FOR_TICK_BEGIN, $signal;
2659	$signal->wait;	2994	$signal->wait;
2660	}	2995	}
2661		2996
		2997	my $min = 1e6;#d#
		2998	my $avg = 10;
2662	$TICK_WATCHER = Event->timer (	2999	$TICK_WATCHER = Event->timer (
2663	reentrant => 0,	3000	reentrant => 0,
2664	parked => 1,	3001	parked => 1,
2665	prio => 0,	3002	prio => 0,
2666	at => $NEXT_TICK || $TICK,	3003	at => $NEXT_TICK || $TICK,
…		…
2670	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3007	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2671	unless ++$bug_warning > 10;	3008	unless ++$bug_warning > 10;
2672	return;	3009	return;
2673	}	3010	}
2674		3011
2675	$NOW = Event::time;	3012	$NOW = $tick_start = Event::time;
2676		3013
2677	cf::server_tick; # one server iteration	3014	cf::server_tick; # one server iteration
		3015
		3016	0 && sync_job {#d#
		3017	for(1..10) {
		3018	my $t = Event::time;
		3019	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3020	or die;
		3021
		3022	$map->width (50);
		3023	$map->height (50);
		3024	$map->alloc;
		3025	$map->_load_objects ("/tmp/x.map", 1);
		3026	my $t = Event::time - $t;
		3027
		3028	#next unless $t < 0.0013;#d#
		3029	if ($t < $min) {
		3030	$min = $t;
		3031	}
		3032	$avg = $avg * 0.99 + $t * 0.01;
		3033	}
		3034	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3035	exit 0;
		3036	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3037	};
		3038
2678	$RUNTIME += $TICK;	3039	$RUNTIME += $TICK;
2679	$NEXT_TICK += $TICK;	3040	$NEXT_TICK += $TICK;
2680		3041
2681	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3042	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2682	$NEXT_RUNTIME_WRITE = $NOW + 10;	3043	$NEXT_RUNTIME_WRITE = $NOW + 10;
…		…
2684	write_runtime	3045	write_runtime
2685	or warn "ERROR: unable to write runtime file: $!";	3046	or warn "ERROR: unable to write runtime file: $!";
2686	};	3047	};
2687	}	3048	}
2688		3049
		3050	# my $AFTER = Event::time;
		3051	# warn $AFTER - $NOW;#d#
		3052
2689	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3053	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2690	$sig->send;	3054	$sig->send;
2691	}	3055	}
2692	while (my $sig = shift @WAIT_FOR_TICK) {	3056	while (my $sig = shift @WAIT_FOR_TICK) {
2693	$sig->send;	3057	$sig->send;
2694	}	3058	}
2695		3059
2696	# my $AFTER = Event::time;	3060	$NOW = Event::time;
2697	# warn $AFTER - $NOW;#d#
2698		3061
2699	# if we are delayed by four ticks or more, skip them all	3062	# if we are delayed by four ticks or more, skip them all
2700	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3063	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2701		3064
2702	$TICK_WATCHER->at ($NEXT_TICK);	3065	$TICK_WATCHER->at ($NEXT_TICK);
2703	$TICK_WATCHER->start;	3066	$TICK_WATCHER->start;
		3067
		3068	$LOAD = ($NOW - $tick_start) / $TICK;
		3069	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3070
		3071	_post_tick;
		3072
		3073
2704	},	3074	},
2705	);	3075	);
2706		3076
2707	{	3077	{
2708	BDB::max_poll_time $TICK * 0.1;	3078	BDB::max_poll_time $TICK * 0.1;
…		…
2736		3106
2737	cf::sync_job {	3107	cf::sync_job {
2738	eval {	3108	eval {
2739	BDB::db_env_open	3109	BDB::db_env_open
2740	$DB_ENV,	3110	$DB_ENV,
2741	$BDB_ENV_DIR,	3111	$BDBDIR,
2742	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3112	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2743	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3113	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2744	0666;	3114	0666;
2745		3115
2746	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3116	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2747		3117
2748	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3118	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2749	$DB_ENV->set_lk_detect;	3119	$DB_ENV->set_lk_detect;
2750	};	3120	};
2751		3121
…		…
2767	prio => 6,	3137	prio => 6,
2768	cb => \&IO::AIO::poll_cb,	3138	cb => \&IO::AIO::poll_cb,
2769	);	3139	);
2770	}	3140	}
2771		3141
		3142	my $_log_backtrace;
		3143
		3144	sub _log_backtrace {
		3145	my ($msg, @addr) = @_;
		3146
		3147	$msg =~ s/\n//;
		3148
		3149	# limit the # of concurrent backtraces
		3150	if ($_log_backtrace < 2) {
		3151	++$_log_backtrace;
		3152	async {
		3153	my @bt = fork_call {
		3154	@addr = map { sprintf "%x", $_ } @addr;
		3155	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3156	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3157	or die "addr2line: $!";
		3158
		3159	my @funcs;
		3160	my @res = <$fh>;
		3161	chomp for @res;
		3162	while (@res) {
		3163	my ($func, $line) = splice @res, 0, 2, ();
		3164	push @funcs, "[$func] $line";
		3165	}
		3166
		3167	@funcs
		3168	};
		3169
		3170	LOG llevInfo, "[ABT] $msg\n";
		3171	LOG llevInfo, "[ABT] $_\n" for @bt;
		3172	--$_log_backtrace;
		3173	};
		3174	} else {
		3175	LOG llevInfo, "[ABT] $msg\n";
		3176	LOG llevInfo, "[ABT] [suppressed]\n";
		3177	}
		3178	}
		3179
		3180	# load additional modules
		3181	use cf::pod;
		3182
2772	END { cf::emergency_save }	3183	END { cf::emergency_save }
2773		3184
2774	1	3185	1
2775		3186

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