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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.101 by root, Mon Dec 25 14:43:23 2006 UTC vs.
Revision 1.335 by root, Mon Aug 20 22:21:48 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;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro;	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
		22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
18		25
19	use IO::AIO 2.3;	26	use JSON::XS 1.4 ();
		27	use BDB ();
		28	use Data::Dumper;
		29	use Digest::MD5;
		30	use Fcntl;
20	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
21	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
22		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
24		44
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
26	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
27		47
28	$Coro::main->prio (Coro::PRIO_MIN);	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
29		49
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		51
32	our %COMMAND = ();	52	our %COMMAND = ();
33	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
35		60
		61	our $RELOAD; # number of reloads so far
36	our @EVENT;	62	our @EVENT;
37	our $LIBDIR = datadir . "/ext";
38		63
39	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
40	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	80	our $NEXT_TICK;
		81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $DB_ENV;
42		86
43	our %CFG;	87	our %CFG;
44		88
45	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
		90	our $RUNTIME;
		91
		92	our %PLAYER; # all users
		93	our %MAP; # all maps
		94	our $LINK_MAP; # the special {link} map, which is always available
		95
		96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
		102
		103	binmode STDOUT;
		104	binmode STDERR;
		105
		106	# read virtual server time, if available
		107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
		108	open my $fh, "<", "$LOCALDIR/runtime"
		109	or die "unable to read runtime file: $!";
		110	$RUNTIME = <$fh> + 0.;
		111	}
		112
		113	mkdir $_
		114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		115
		116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
46		119
47	#############################################################################	120	#############################################################################
48		121
49	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
50		123
…		…
52		125
53	=item $cf::UPTIME	126	=item $cf::UPTIME
54		127
55	The timestamp of the server start (so not actually an uptime).	128	The timestamp of the server start (so not actually an uptime).
56		129
57	=item $cf::LIBDIR	130	=item $cf::RUNTIME
58		131
59	The perl library directory, where extensions and cf-specific modules can	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
60	be found. It will be added to C<@INC> automatically.	133	every server tick.
		134
		135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		138
		139	Various directories - "/etc", read-only install directory, perl-library
		140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
		143
		144	=item $cf::NOW
		145
		146	The time of the last (current) server tick.
61		147
62	=item $cf::TICK	148	=item $cf::TICK
63		149
64	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
65		161
66	=item %cf::CFG	162	=item %cf::CFG
67		163
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
69	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
70		178
71	=back	179	=back
72		180
73	=cut	181	=cut
74		182
75	BEGIN {	183	BEGIN {
76	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	185	my $msg = join "", @_;
		186
78	$msg .= "\n"	187	$msg .= "\n"
79	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
80		189
81	print STDERR "cfperl: $msg";	190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
82	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
83	};	194	};
84	}	195	}
85		196
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
88	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
89	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
90	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
91	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
92		204
93	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
94	# within the Safe compartment.	206	# within the Safe compartment.
95	for my $pkg (qw(	207	for my $pkg (qw(
96	cf::global cf::attachable	208	cf::global cf::attachable
…		…
105		217
106	$Event::DIED = sub {	218	$Event::DIED = sub {
107	warn "error in event callback: @_";	219	warn "error in event callback: @_";
108	};	220	};
109		221
110	my %ext_pkg;	222	#############################################################################
111	my @exts;
112	my @hook;
113		223
114	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
115		225
116	=over 4	226	=over 4
117		227
118	=cut	228	=item dumpval $ref
119		229
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
121		250
122	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
123		252
124	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
125		254
126	=cut
127
128	sub from_json($) {
129	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
130	JSON::Syck::Load $_[0]
131	}
132
133	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
134		256
135	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
136		258
137	=cut	259	=cut
138		260
139	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
141	JSON::Syck::Dump $_[0]	263	sub to_json ($) { $json_coder->encode ($_[0]) }
		264	sub from_json ($) { $json_coder->decode ($_[0]) }
		265
		266	=item cf::lock_wait $string
		267
		268	Wait until the given lock is available. See cf::lock_acquire.
		269
		270	=item my $lock = cf::lock_acquire $string
		271
		272	Wait until the given lock is available and then acquires it and returns
		273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		274	for example when the coroutine gets canceled), the lock is automatically
		275	returned.
		276
		277	Lock names should begin with a unique identifier (for example, cf::map::find
		278	uses map_find and cf::map::load uses map_load).
		279
		280	=item $locked = cf::lock_active $string
		281
		282	Return true if the lock is currently active, i.e. somebody has locked it.
		283
		284	=cut
		285
		286	our %LOCK;
		287
		288	sub lock_wait($) {
		289	my ($key) = @_;
		290
		291	# wait for lock, if any
		292	while ($LOCK{$key}) {
		293	push @{ $LOCK{$key} }, $Coro::current;
		294	Coro::schedule;
		295	}
		296	}
		297
		298	sub lock_acquire($) {
		299	my ($key) = @_;
		300
		301	# wait, to be sure we are not locked
		302	lock_wait $key;
		303
		304	$LOCK{$key} = [];
		305
		306	Coro::guard {
		307	# wake up all waiters, to be on the safe side
		308	$_->ready for @{ delete $LOCK{$key} };
		309	}
		310	}
		311
		312	sub lock_active($) {
		313	my ($key) = @_;
		314
		315	! ! $LOCK{$key}
		316	}
		317
		318	sub freeze_mainloop {
		319	return unless $TICK_WATCHER->is_active;
		320
		321	my $guard = Coro::guard {
		322	$TICK_WATCHER->start;
		323	};
		324	$TICK_WATCHER->stop;
		325	$guard
		326	}
		327
		328	=item cf::get_slot $time[, $priority[, $name]]
		329
		330	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		331	This call blocks and returns only when you have at least C<$time> seconds
		332	of cpu time till the next tick. The slot is only valid till the next cede.
		333
		334	The optional C<$name> can be used to identify the job to run. It might be
		335	used for statistical purposes and should identify the same time-class.
		336
		337	Useful for short background jobs.
		338
		339	=cut
		340
		341	our @SLOT_QUEUE;
		342	our $SLOT_QUEUE;
		343
		344	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		345	$SLOT_QUEUE = Coro::async {
		346	my $signal = new Coro::Signal;
		347
		348	while () {
		349	next_job:
		350	my $avail = cf::till_tick;
		351	if ($avail > 0.01) {
		352	for (0 .. $#SLOT_QUEUE) {
		353	if ($SLOT_QUEUE[$_][0] < $avail) {
		354	my $job = splice @SLOT_QUEUE, $_, 1, ();
		355	$job->[2]->send;
		356	Coro::cede;
		357	goto next_job;
		358	}
		359	}
		360	}
		361
		362	if (@SLOT_QUEUE) {
		363	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		364	push @cf::WAIT_FOR_TICK, $signal;
		365	$signal->wait;
		366	} else {
		367	Coro::schedule;
		368	}
		369	}
		370	};
		371
		372	sub get_slot($;$$) {
		373	my ($time, $pri, $name) = @_;
		374
		375	$time = $TICK * .6 if $time > $TICK * .6;
		376	my $sig = new Coro::Signal;
		377
		378	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		379	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		380	$SLOT_QUEUE->ready;
		381	$sig->wait;
		382	}
		383
		384	=item cf::async { BLOCK }
		385
		386	Currently the same as Coro::async_pool, meaning you cannot use
		387	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		388	thing you are allowed to do is call C<prio> on it.
		389
		390	=cut
		391
		392	BEGIN { *async = \&Coro::async_pool }
		393
		394	=item cf::sync_job { BLOCK }
		395
		396	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		397	is always able to handle events or runnable, as Crossfire TRT is only
		398	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		399	acceptable.
		400
		401	If it must be done, put the blocking parts into C<sync_job>. This will run
		402	the given BLOCK in another coroutine while waiting for the result. The
		403	server will be frozen during this time, so the block should either finish
		404	fast or be very important.
		405
		406	=cut
		407
		408	sub sync_job(&) {
		409	my ($job) = @_;
		410
		411	if ($Coro::current == $Coro::main) {
		412	my $time = Event::time;
		413
		414	# this is the main coro, too bad, we have to block
		415	# till the operation succeeds, freezing the server :/
		416
		417	# TODO: use suspend/resume instead
		418	# (but this is cancel-safe)
		419	my $freeze_guard = freeze_mainloop;
		420
		421	my $busy = 1;
		422	my @res;
		423
		424	(async {
		425	@res = eval { $job->() };
		426	warn $@ if $@;
		427	undef $busy;
		428	})->prio (Coro::PRIO_MAX);
		429
		430	while ($busy) {
		431	Coro::cede or Event::one_event;
		432	}
		433
		434	$time = Event::time - $time;
		435
		436	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		437	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		438
		439	$tick_start += $time; # do not account sync jobs to server load
		440
		441	wantarray ? @res : $res[0]
		442	} else {
		443	# we are in another coroutine, how wonderful, everything just works
		444
		445	$job->()
		446	}
		447	}
		448
		449	=item $coro = cf::async_ext { BLOCK }
		450
		451	Like async, but this coro is automatically being canceled when the
		452	extension calling this is being unloaded.
		453
		454	=cut
		455
		456	sub async_ext(&) {
		457	my $cb = shift;
		458
		459	my $coro = &Coro::async ($cb);
		460
		461	$coro->on_destroy (sub {
		462	delete $EXT_CORO{$coro+0};
		463	});
		464	$EXT_CORO{$coro+0} = $coro;
		465
		466	$coro
		467	}
		468
		469	=item fork_call { }, $args
		470
		471	Executes the given code block with the given arguments in a seperate
		472	process, returning the results. Everything must be serialisable with
		473	Coro::Storable. May, of course, block. Note that the executed sub may
		474	never block itself or use any form of Event handling.
		475
		476	=cut
		477
		478	sub fork_call(&@) {
		479	my ($cb, @args) = @_;
		480
		481	# we seemingly have to make a local copy of the whole thing,
		482	# otherwise perl prematurely frees the stuff :/
		483	# TODO: investigate and fix (liekly this will be rather laborious)
		484
		485	my @res = Coro::Util::fork_eval {
		486	reset_signals;
		487	&$cb
		488	}, @args;
		489
		490	wantarray ? @res : $res[-1]
		491	}
		492
		493	=item $value = cf::db_get $family => $key
		494
		495	Returns a single value from the environment database.
		496
		497	=item cf::db_put $family => $key => $value
		498
		499	Stores the given C<$value> in the family. It can currently store binary
		500	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		501
		502	=cut
		503
		504	our $DB;
		505
		506	sub db_init {
		507	unless ($DB) {
		508	$DB = BDB::db_create $DB_ENV;
		509
		510	cf::sync_job {
		511	eval {
		512	$DB->set_flags (BDB::CHKSUM);
		513
		514	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		515	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		516	cf::cleanup "db_open(db): $!" if $!;
		517	};
		518	cf::cleanup "db_open(db): $@" if $@;
		519	};
		520	}
		521	}
		522
		523	sub db_get($$) {
		524	my $key = "$_[0]/$_[1]";
		525
		526	cf::sync_job {
		527	BDB::db_get $DB, undef, $key, my $data;
		528
		529	$! ? ()
		530	: $data
		531	}
		532	}
		533
		534	sub db_put($$$) {
		535	BDB::dbreq_pri 4;
		536	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		537	}
		538
		539	=item cf::cache $id => [$paths...], $processversion => $process
		540
		541	Generic caching function that returns the value of the resource $id,
		542	caching and regenerating as required.
		543
		544	This function can block.
		545
		546	=cut
		547
		548	sub cache {
		549	my ($id, $src, $processversion, $process) = @_;
		550
		551	my $meta =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	aio_stat $_
		556	and Carp::croak "$_: $!";
		557
		558	($_, (stat _)[7,9])
		559	} @$src;
		560
		561	my $dbmeta = db_get cache => "$id/meta";
		562	if ($dbmeta ne $meta) {
		563	# changed, we may need to process
		564
		565	my @data;
		566	my $md5;
		567
		568	for (0 .. $#$src) {
		569	0 <= aio_load $src->[$_], $data[$_]
		570	or Carp::croak "$src->[$_]: $!";
		571	}
		572
		573	# if processing is expensive, check
		574	# checksum first
		575	if (1) {
		576	$md5 =
		577	join "\x00",
		578	$processversion,
		579	map {
		580	Coro::cede;
		581	($src->[$_], Digest::MD5::md5_hex $data[$_])
		582	} 0.. $#$src;
		583
		584
		585	my $dbmd5 = db_get cache => "$id/md5";
		586	if ($dbmd5 eq $md5) {
		587	db_put cache => "$id/meta", $meta;
		588
		589	return db_get cache => "$id/data";
		590	}
		591	}
		592
		593	my $t1 = Time::HiRes::time;
		594	my $data = $process->(\@data);
		595	my $t2 = Time::HiRes::time;
		596
		597	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		598
		599	db_put cache => "$id/data", $data;
		600	db_put cache => "$id/md5" , $md5;
		601	db_put cache => "$id/meta", $meta;
		602
		603	return $data;
		604	}
		605
		606	db_get cache => "$id/data"
		607	}
		608
		609	=item cf::datalog type => key => value, ...
		610
		611	Log a datalog packet of the given type with the given key-value pairs.
		612
		613	=cut
		614
		615	sub datalog($@) {
		616	my ($type, %kv) = @_;
		617	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
142	}	618	}
143		619
144	=back	620	=back
145		621
146	=cut	622	=cut
…		…
153	attach callbacks/event handlers (a collection of which is called an "attachment")	629	attach callbacks/event handlers (a collection of which is called an "attachment")
154	to it. All such attachable objects support the following methods.	630	to it. All such attachable objects support the following methods.
155		631
156	In the following description, CLASS can be any of C<global>, C<object>	632	In the following description, CLASS can be any of C<global>, C<object>
157	C<player>, C<client> or C<map> (i.e. the attachable objects in	633	C<player>, C<client> or C<map> (i.e. the attachable objects in
158	crossfire+).	634	Crossfire TRT).
159		635
160	=over 4	636	=over 4
161		637
162	=item $attachable->attach ($attachment, key => $value...)	638	=item $attachable->attach ($attachment, key => $value...)
163		639
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	753	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	754	our @CB_MAP = ();
279		755
280	my %attachment;	756	my %attachment;
281		757
		758	sub cf::attachable::thawer_merge {
		759	# simply override everything except _meta
		760	local $_[0]{_meta};
		761	%{$_[0]} = %{$_[1]};
		762	}
		763
282	sub _attach_cb($$$$) {	764	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	765	my ($registry, $event, $prio, $cb) = @_;
284		766
285	use sort 'stable';	767	use sort 'stable';
286		768
…		…
320	$registry = $CB_TYPE[$object_type] ||= [];	802	$registry = $CB_TYPE[$object_type] ||= [];
321		803
322	} elsif ($type eq "subtype") {	804	} elsif ($type eq "subtype") {
323	defined $object_type or Carp::croak "subtype specified without type";	805	defined $object_type or Carp::croak "subtype specified without type";
324	my $object_subtype = shift @arg;	806	my $object_subtype = shift @arg;
325	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	807	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
326		808
327	} elsif ($type eq "package") {	809	} elsif ($type eq "package") {
328	my $pkg = shift @arg;	810	my $pkg = shift @arg;
329		811
330	while (my ($name, $id) = each %cb_id) {	812	while (my ($name, $id) = each %cb_id) {
…		…
359	_attach $registry, $klass, @attach;	841	_attach $registry, $klass, @attach;
360	}	842	}
361		843
362	$obj->{$name} = \%arg;	844	$obj->{$name} = \%arg;
363	} else {	845	} else {
364	warn "object uses attachment '$name' that is not available, postponing.\n";	846	warn "object uses attachment '$name' which is not available, postponing.\n";
365	}	847	}
366		848
367	$obj->{_attachment}{$name} = undef;	849	$obj->{_attachment}{$name} = undef;
368	}	850	}
369		851
…		…
371	if (ref $_[0]) {	853	if (ref $_[0]) {
372	_object_attach @_;	854	_object_attach @_;
373	} else {	855	} else {
374	_attach shift->_attach_registry, @_;	856	_attach shift->_attach_registry, @_;
375	}	857	}
		858	_recalc_want;
376	};	859	};
377		860
378	# all those should be optimised	861	# all those should be optimised
379	sub cf::attachable::detach {	862	sub cf::attachable::detach {
380	my ($obj, $name) = @_;	863	my ($obj, $name) = @_;
…		…
383	delete $obj->{_attachment}{$name};	866	delete $obj->{_attachment}{$name};
384	reattach ($obj);	867	reattach ($obj);
385	} else {	868	} else {
386	Carp::croak "cannot, currently, detach class attachments";	869	Carp::croak "cannot, currently, detach class attachments";
387	}	870	}
		871	_recalc_want;
388	};	872	};
389		873
390	sub cf::attachable::attached {	874	sub cf::attachable::attached {
391	my ($obj, $name) = @_;	875	my ($obj, $name) = @_;
392		876
…		…
407	";	891	";
408	die if $@;	892	die if $@;
409	}	893	}
410		894
411	our $override;	895	our $override;
412	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	896	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
413		897
414	sub override {	898	sub override {
415	$override = 1;	899	$override = 1;
416	@invoke_results = ();	900	@INVOKE_RESULTS = (@_);
417	}	901	}
418		902
419	sub do_invoke {	903	sub do_invoke {
420	my $event = shift;	904	my $event = shift;
421	my $callbacks = shift;	905	my $callbacks = shift;
422		906
423	@invoke_results = ();	907	@INVOKE_RESULTS = ();
424		908
425	local $override;	909	local $override;
426		910
427	for (@$callbacks) {	911	for (@$callbacks) {
428	eval { &{$_->[1]} };	912	eval { &{$_->[1]} };
…		…
445		929
446	Generate an object-specific event with the given arguments.	930	Generate an object-specific event with the given arguments.
447		931
448	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	932	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
449	removed in future versions), and there is no public API to access override	933	removed in future versions), and there is no public API to access override
450	results (if you must, access C<@cf::invoke_results> directly).	934	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
451		935
452	=back	936	=back
453		937
454	=cut	938	=cut
455		939
456	#############################################################################	940	#############################################################################
457	# object support	941	# object support
		942	#
		943
		944	sub _can_merge {
		945	my ($ob1, $ob2) = @_;
		946
		947	local $Storable::canonical = 1;
		948	my $fob1 = Storable::freeze $ob1;
		949	my $fob2 = Storable::freeze $ob2;
		950
		951	$fob1 eq $fob2
		952	}
		953
		954	sub reattach {
		955	# basically do the same as instantiate, without calling instantiate
		956	my ($obj) = @_;
		957
		958	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		959
		960	my $registry = $obj->registry;
		961
		962	@$registry = ();
		963
		964	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		965
		966	for my $name (keys %{ $obj->{_attachment} || {} }) {
		967	if (my $attach = $attachment{$name}) {
		968	for (@$attach) {
		969	my ($klass, @attach) = @$_;
		970	_attach $registry, $klass, @attach;
		971	}
		972	} else {
		973	warn "object uses attachment '$name' that is not available, postponing.\n";
		974	}
		975	}
		976	}
458		977
459	cf::attachable->attach (	978	cf::attachable->attach (
460	prio => -1000000,	979	prio => -1000000,
461	on_instantiate => sub {	980	on_instantiate => sub {
462	my ($obj, $data) = @_;	981	my ($obj, $data) = @_;
…		…
467	my ($name, $args) = @$_;	986	my ($name, $args) = @$_;
468		987
469	$obj->attach ($name, %{$args || {} });	988	$obj->attach ($name, %{$args || {} });
470	}	989	}
471	},	990	},
472	on_reattach => sub {	991	on_reattach => \&reattach,
473	# basically do the same as instantiate, without calling instantiate
474	my ($obj) = @_;
475	my $registry = $obj->registry;
476
477	@$registry = ();
478
479	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480
481	for my $name (keys %{ $obj->{_attachment} || {} }) {
482	if (my $attach = $attachment{$name}) {
483	for (@$attach) {
484	my ($klass, @attach) = @$_;
485	_attach $registry, $klass, @attach;
486	}
487	} else {
488	warn "object uses attachment '$name' that is not available, postponing.\n";
489	}
490	}
491	},
492	on_clone => sub {	992	on_clone => sub {
493	my ($src, $dst) = @_;	993	my ($src, $dst) = @_;
494		994
495	@{$dst->registry} = @{$src->registry};	995	@{$dst->registry} = @{$src->registry};
496		996
…		…
502	);	1002	);
503		1003
504	sub object_freezer_save {	1004	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	1005	my ($filename, $rdata, $objs) = @_;
506		1006
		1007	sync_job {
507	if (length $$rdata) {	1008	if (length $$rdata) {
508	warn sprintf "saving %s (%d,%d)\n",	1009	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	1010	$filename, length $$rdata, scalar @$objs;
510		1011
511	if (open my $fh, ">:raw", "$filename~") {	1012	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	1013	chmod SAVE_MODE, $fh;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	1014	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1015	aio_fsync $fh if $cf::USE_FSYNC;
519	close $fh;	1016	close $fh;
		1017
		1018	if (@$objs) {
		1019	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1020	chmod SAVE_MODE, $fh;
		1021	my $data = Storable::nfreeze { version => 1, objs => $objs };
		1022	aio_write $fh, 0, (length $data), $data, 0;
		1023	aio_fsync $fh if $cf::USE_FSYNC;
		1024	close $fh;
520	rename "$filename.pst~", "$filename.pst";	1025	aio_rename "$filename.pst~", "$filename.pst";
		1026	}
		1027	} else {
		1028	aio_unlink "$filename.pst";
		1029	}
		1030
		1031	aio_rename "$filename~", $filename;
521	} else {	1032	} else {
522	unlink "$filename.pst";	1033	warn "FATAL: $filename~: $!\n";
523	}	1034	}
524
525	rename "$filename~", $filename;
526	} else {	1035	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	1036	aio_unlink $filename;
531	unlink "$filename.pst";	1037	aio_unlink "$filename.pst";
		1038	}
532	}	1039	}
533	}	1040	}
534		1041
535	sub object_freezer_as_string {	1042	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	1043	my ($rdata, $objs) = @_;
…		…
541	}	1048	}
542		1049
543	sub object_thawer_load {	1050	sub object_thawer_load {
544	my ($filename) = @_;	1051	my ($filename) = @_;
545		1052
546	local $/;	1053	my ($data, $av);
547		1054
548	my $av;	1055	(aio_load $filename, $data) >= 0
		1056	or return;
549		1057
550	#TODO: use sysread etc.	1058	unless (aio_stat "$filename.pst") {
551	if (open my $data, "<:raw:perlio", $filename) {	1059	(aio_load "$filename.pst", $av) >= 0
552	$data = <$data>;	1060	or return;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };	1061	$av = eval { (Storable::thaw $av)->{objs} };
555	}	1062	}
		1063
		1064	warn sprintf "loading %s (%d)\n",
		1065	$filename, length $data, scalar @{$av || []};
556	return ($data, $av);	1066	return ($data, $av);
557	}
558
559	()
560	}	1067	}
		1068
		1069	=head2 COMMAND CALLBACKS
		1070
		1071	=over 4
		1072
		1073	=cut
561		1074
562	#############################################################################	1075	#############################################################################
563	# command handling &c	1076	# command handling &c
564		1077
565	=item cf::register_command $name => \&callback($ob,$args);	1078	=item cf::register_command $name => \&callback($ob,$args);
…		…
578	push @{ $COMMAND{$name} }, [$caller, $cb];	1091	push @{ $COMMAND{$name} }, [$caller, $cb];
579	}	1092	}
580		1093
581	=item cf::register_extcmd $name => \&callback($pl,$packet);	1094	=item cf::register_extcmd $name => \&callback($pl,$packet);
582		1095
583	Register a callbackf ro execution when the client sends an extcmd packet.	1096	Register a callback for execution when the client sends an (synchronous)
		1097	extcmd packet. Ext commands will be processed in the order they are
		1098	received by the server, like other user commands. The first argument is
		1099	the logged-in player. Ext commands can only be processed after a player
		1100	has logged in successfully.
584		1101
585	If the callback returns something, it is sent back as if reply was being	1102	If the callback returns something, it is sent back as if reply was being
586	called.	1103	called.
587		1104
		1105	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1106
		1107	Register a callback for execution when the client sends an (asynchronous)
		1108	exticmd packet. Exti commands are processed by the server as soon as they
		1109	are received, i.e. out of order w.r.t. other commands. The first argument
		1110	is a client socket. Exti commands can be received anytime, even before
		1111	log-in.
		1112
		1113	If the callback returns something, it is sent back as if reply was being
		1114	called.
		1115
588	=cut	1116	=cut
589		1117
590	sub register_extcmd {	1118	sub register_extcmd {
591	my ($name, $cb) = @_;	1119	my ($name, $cb) = @_;
592		1120
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	1121	$EXTCMD{$name} = $cb;
		1122	}
		1123
		1124	sub register_exticmd {
		1125	my ($name, $cb) = @_;
		1126
		1127	$EXTICMD{$name} = $cb;
597	}	1128	}
598		1129
599	cf::player->attach (	1130	cf::player->attach (
600	on_command => sub {	1131	on_command => sub {
601	my ($pl, $name, $params) = @_;	1132	my ($pl, $name, $params) = @_;
…		…
610	cf::override;	1141	cf::override;
611	},	1142	},
612	on_extcmd => sub {	1143	on_extcmd => sub {
613	my ($pl, $buf) = @_;	1144	my ($pl, $buf) = @_;
614		1145
615	my $msg = eval { from_json $buf };	1146	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
616		1147
617	if (ref $msg) {	1148	if (ref $msg) {
		1149	my ($type, $reply, @payload) =
		1150	"ARRAY" eq ref $msg
		1151	? @$msg
		1152	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1153
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1154	if (my $cb = $EXTCMD{$type}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	1155	my @reply = $cb->($pl, @payload);
		1156
620	$pl->ext_reply ($msg->{msgid}, %reply);	1157	$pl->ext_reply ($reply, @reply)
621	}	1158	if $reply;
622	}	1159	}
623	} else {	1160	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1161	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
625	}	1162	}
626		1163
627	cf::override;	1164	cf::override;
628	},	1165	},
629	);	1166	);
630		1167
		1168	sub load_extensions {
		1169	cf::sync_job {
		1170	my %todo;
		1171
		1172	for my $path (<$LIBDIR/*.ext>) {
		1173	next unless -r $path;
		1174
		1175	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1176	my $base = $1;
		1177	my $pkg = $1;
		1178	$pkg =~ s/[^[:word:]]/_/g;
		1179	$pkg = "ext::$pkg";
		1180
		1181	open my $fh, "<:utf8", $path
		1182	or die "$path: $!";
		1183
		1184	my $source = do { local $/; <$fh> };
		1185
		1186	my %ext = (
		1187	path => $path,
		1188	base => $base,
		1189	pkg => $pkg,
		1190	);
		1191
		1192	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1193	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1194
		1195	$ext{source} =
		1196	"package $pkg; use strict; use utf8;\n"
		1197	. "#line 1 \"$path\"\n{\n"
		1198	. $source
		1199	. "\n};\n1";
		1200
		1201	$todo{$base} = \%ext;
		1202	}
		1203
		1204	my %done;
		1205	while (%todo) {
		1206	my $progress;
		1207
		1208	while (my ($k, $v) = each %todo) {
		1209	for (split /,\s*/, $v->{meta}{depends}) {
		1210	goto skip
		1211	unless exists $done{$_};
		1212	}
		1213
		1214	warn "... loading '$k' into '$v->{pkg}'\n";
		1215
		1216	unless (eval $v->{source}) {
		1217	my $msg = $@ ? "$v->{path}: $@\n"
		1218	: "$v->{base}: extension inactive.\n";
		1219
		1220	if (exists $v->{meta}{mandatory}) {
		1221	warn $msg;
		1222	warn "mandatory extension failed to load, exiting.\n";
		1223	exit 1;
		1224	}
		1225
		1226	warn $msg;
		1227	}
		1228
		1229	$done{$k} = delete $todo{$k};
		1230	push @EXTS, $v->{pkg};
		1231	$progress = 1;
		1232	}
		1233
		1234	skip:
		1235	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1236	unless $progress;
		1237	}
		1238	};
		1239	}
		1240
		1241	#############################################################################
		1242
		1243	=back
		1244
		1245	=head2 CORE EXTENSIONS
		1246
		1247	Functions and methods that extend core crossfire objects.
		1248
		1249	=cut
		1250
		1251	package cf::player;
		1252
		1253	use Coro::AIO;
		1254
		1255	=head3 cf::player
		1256
		1257	=over 4
		1258
		1259	=item cf::player::find $login
		1260
		1261	Returns the given player object, loading it if necessary (might block).
		1262
		1263	=cut
		1264
		1265	sub playerdir($) {
		1266	"$PLAYERDIR/"
		1267	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1268	}
		1269
		1270	sub path($) {
		1271	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1272
		1273	(playerdir $login) . "/playerdata"
		1274	}
		1275
		1276	sub find_active($) {
		1277	$cf::PLAYER{$_[0]}
		1278	and $cf::PLAYER{$_[0]}->active
		1279	and $cf::PLAYER{$_[0]}
		1280	}
		1281
		1282	sub exists($) {
		1283	my ($login) = @_;
		1284
		1285	$cf::PLAYER{$login}
		1286	or cf::sync_job { !aio_stat path $login }
		1287	}
		1288
		1289	sub find($) {
		1290	return $cf::PLAYER{$_[0]} || do {
		1291	my $login = $_[0];
		1292
		1293	my $guard = cf::lock_acquire "user_find:$login";
		1294
		1295	$cf::PLAYER{$_[0]} || do {
		1296	# rename old playerfiles to new ones
		1297	#TODO: remove when no longer required
		1298	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1299	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1300	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1301	aio_unlink +(playerdir $login) . "/$login.pl";
		1302
		1303	my $pl = load_pl path $login
		1304	or return;
		1305	$cf::PLAYER{$login} = $pl
		1306	}
		1307	}
		1308	}
		1309
		1310	sub save($) {
		1311	my ($pl) = @_;
		1312
		1313	return if $pl->{deny_save};
		1314
		1315	my $path = path $pl;
		1316	my $guard = cf::lock_acquire "user_save:$path";
		1317
		1318	return if $pl->{deny_save};
		1319
		1320	aio_mkdir playerdir $pl, 0770;
		1321	$pl->{last_save} = $cf::RUNTIME;
		1322
		1323	$pl->save_pl ($path);
		1324	Coro::cede;
		1325	}
		1326
		1327	sub new($) {
		1328	my ($login) = @_;
		1329
		1330	my $self = create;
		1331
		1332	$self->ob->name ($login);
		1333	$self->{deny_save} = 1;
		1334
		1335	$cf::PLAYER{$login} = $self;
		1336
		1337	$self
		1338	}
		1339
		1340	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1341
		1342	=cut
		1343
		1344	sub send_msg {
		1345	my $ns = shift->ns
		1346	or return;
		1347	$ns->send_msg (@_);
		1348	}
		1349
		1350	=item $pl->quit_character
		1351
		1352	Nukes the player without looking back. If logged in, the connection will
		1353	be destroyed. May block for a long time.
		1354
		1355	=cut
		1356
		1357	sub quit_character {
		1358	my ($pl) = @_;
		1359
		1360	my $name = $pl->ob->name;
		1361
		1362	$pl->{deny_save} = 1;
		1363	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1364
		1365	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1366	$pl->deactivate;
		1367	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1368	$pl->ns->destroy if $pl->ns;
		1369
		1370	my $path = playerdir $pl;
		1371	my $temp = "$path~$cf::RUNTIME~deleting~";
		1372	aio_rename $path, $temp;
		1373	delete $cf::PLAYER{$pl->ob->name};
		1374	$pl->destroy;
		1375
		1376	my $prefix = qr<^~\Q$name\E/>;
		1377
		1378	# nuke player maps
		1379	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1380
		1381	IO::AIO::aio_rmtree $temp;
		1382	}
		1383
		1384	=item $pl->kick
		1385
		1386	Kicks a player out of the game. This destroys the connection.
		1387
		1388	=cut
		1389
		1390	sub kick {
		1391	my ($pl, $kicker) = @_;
		1392
		1393	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1394	$pl->killer ("kicked");
		1395	$pl->ns->destroy;
		1396	}
		1397
		1398	=item cf::player::list_logins
		1399
		1400	Returns am arrayref of all valid playernames in the system, can take a
		1401	while and may block, so not sync_job-capable, ever.
		1402
		1403	=cut
		1404
		1405	sub list_logins {
		1406	my $dirs = aio_readdir $PLAYERDIR
		1407	or return [];
		1408
		1409	my @logins;
		1410
		1411	for my $login (@$dirs) {
		1412	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1413	aio_read $fh, 0, 512, my $buf, 0 or next;
		1414	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1415
		1416	utf8::decode $login;
		1417	push @logins, $login;
		1418	}
		1419
		1420	\@logins
		1421	}
		1422
		1423	=item $player->maps
		1424
		1425	Returns an arrayref of map paths that are private for this
		1426	player. May block.
		1427
		1428	=cut
		1429
		1430	sub maps($) {
		1431	my ($pl) = @_;
		1432
		1433	$pl = ref $pl ? $pl->ob->name : $pl;
		1434
		1435	my $files = aio_readdir playerdir $pl
		1436	or return;
		1437
		1438	my @paths;
		1439
		1440	for (@$files) {
		1441	utf8::decode $_;
		1442	next if /\.(?:pl|pst)$/;
		1443	next unless /^$PATH_SEP/o;
		1444
		1445	push @paths, cf::map::normalise "~$pl/$_";
		1446	}
		1447
		1448	\@paths
		1449	}
		1450
		1451	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1452
		1453	Expand crossfire pod fragments into protocol xml.
		1454
		1455	=cut
		1456
		1457	sub expand_cfpod {
		1458	((my $self), (local $_)) = @_;
		1459
		1460	# escape & and <
		1461	s/&/&amp;/g;
		1462	s/(?<![BIUGH])</&lt;/g;
		1463
		1464	# this is buggy, it needs to properly take care of nested <'s
		1465
		1466	1 while
		1467	# replace B<>, I<>, U<> etc.
		1468	s/B<([^\>]*)>/<b>$1<\/b>/
		1469	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1470	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1471	# replace G<male|female> tags
		1472	|| s{G<([^>|]*)\|([^>]*)>}{
		1473	$self->gender ? $2 : $1
		1474	}ge
		1475	# replace H<hint text>
		1476	|| s{H<([^\>]*)>}
		1477	{
		1478	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1479	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1480	"")
		1481	[$self->{hintmode}]
		1482	}ge;
		1483
		1484	# create single paragraphs (very hackish)
		1485	s/(?<=\S)\n(?=\w)/ /g;
		1486
		1487	# compress some whitespace
		1488	s/\s+\n/\n/g; # ws line-ends
		1489	s/\n\n+/\n/g; # double lines
		1490	s/^\n+//; # beginning lines
		1491	s/\n+$//; # ending lines
		1492
		1493	$_
		1494	}
		1495
		1496	sub hintmode {
		1497	$_[0]{hintmode} = $_[1] if @_ > 1;
		1498	$_[0]{hintmode}
		1499	}
		1500
		1501	=item $player->ext_reply ($msgid, @msg)
		1502
		1503	Sends an ext reply to the player.
		1504
		1505	=cut
		1506
		1507	sub ext_reply($$@) {
		1508	my ($self, $id, @msg) = @_;
		1509
		1510	if ($self->ns->extcmd == 2) {
		1511	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
		1512	} elsif ($self->ns->extcmd == 1) {
		1513	#TODO: version 1, remove
		1514	unshift @msg, msgtype => "reply", msgid => $id;
		1515	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1516	}
		1517	}
		1518
		1519	=item $player->ext_msg ($type, @msg)
		1520
		1521	Sends an ext event to the client.
		1522
		1523	=cut
		1524
		1525	sub ext_msg($$@) {
		1526	my ($self, $type, @msg) = @_;
		1527
		1528	$self->ns->ext_msg ($type, @msg);
		1529	}
		1530
		1531	=head3 cf::region
		1532
		1533	=over 4
		1534
		1535	=cut
		1536
		1537	package cf::region;
		1538
		1539	=item cf::region::find_by_path $path
		1540
		1541	Tries to decuce the likely region for a map knowing only its path.
		1542
		1543	=cut
		1544
		1545	sub find_by_path($) {
		1546	my ($path) = @_;
		1547
		1548	my ($match, $specificity);
		1549
		1550	for my $region (list) {
		1551	if ($region->{match} && $path =~ $region->{match}) {
		1552	($match, $specificity) = ($region, $region->specificity)
		1553	if $region->specificity > $specificity;
		1554	}
		1555	}
		1556
		1557	$match
		1558	}
		1559
		1560	=back
		1561
		1562	=head3 cf::map
		1563
		1564	=over 4
		1565
		1566	=cut
		1567
		1568	package cf::map;
		1569
		1570	use Fcntl;
		1571	use Coro::AIO;
		1572
		1573	use overload
		1574	'""' => \&as_string,
		1575	fallback => 1;
		1576
		1577	our $MAX_RESET = 3600;
		1578	our $DEFAULT_RESET = 3000;
		1579
		1580	sub generate_random_map {
		1581	my ($self, $rmp) = @_;
		1582	# mit "rum" bekleckern, nicht
		1583	$self->_create_random_map (
		1584	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1585	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1586	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1587	$rmp->{exit_on_final_map},
		1588	$rmp->{xsize}, $rmp->{ysize},
		1589	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1590	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1591	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1592	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1593	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1594	(cf::region::find $rmp->{region}), $rmp->{custom}
		1595	)
		1596	}
		1597
		1598	=item cf::map->register ($regex, $prio)
		1599
		1600	Register a handler for the map path matching the given regex at the
		1601	givne priority (higher is better, built-in handlers have priority 0, the
		1602	default).
		1603
		1604	=cut
		1605
631	sub register {	1606	sub register {
		1607	my (undef, $regex, $prio) = @_;
		1608	my $pkg = caller;
		1609
		1610	no strict;
		1611	push @{"$pkg\::ISA"}, __PACKAGE__;
		1612
		1613	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1614	}
		1615
		1616	# also paths starting with '/'
		1617	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1618
		1619	sub thawer_merge {
632	my ($base, $pkg) = @_;	1620	my ($self, $merge) = @_;
633		1621
634	#TODO	1622	# we have to keep some variables in memory intact
635	}	1623	local $self->{path};
		1624	local $self->{load_path};
636		1625
637	sub load_extension {	1626	$self->SUPER::thawer_merge ($merge);
		1627	}
		1628
		1629	sub normalise {
638	my ($path) = @_;	1630	my ($path, $base) = @_;
639		1631
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1632	$path = "$path"; # make sure its a string
641	my $base = $1;
642	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";
645		1633
646	warn "loading '$path' into '$pkg'\n";	1634	$path =~ s/\.map$//;
647		1635
648	open my $fh, "<:utf8", $path	1636	# map plan:
649	or die "$path: $!";	1637	#
		1638	# /! non-realised random map exit (special hack!)
		1639	# {... are special paths that are not being touched
		1640	# ?xxx/... are special absolute paths
		1641	# ?random/... random maps
		1642	# /... normal maps
		1643	# ~user/... per-player map of a specific user
650		1644
651	my $source =	1645	$path =~ s/$PATH_SEP/\//go;
652	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })
655	. "\n};\n1";
656		1646
657	eval $source	1647	# treat it as relative path if it starts with
658	or die $@ ? "$path: $@\n"	1648	# something that looks reasonable
659	: "extension disabled.\n";	1649	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1650	$base or Carp::carp "normalise called with relative path and no base: '$path'";
660		1651
661	push @exts, $pkg;	1652	$base =~ s{[^/]+/?$}{};
662	$ext_pkg{$base} = $pkg;	1653	$path = "$base/$path";
663
664	# no strict 'refs';
665	# @{"$pkg\::ISA"} = ext::;
666
667	register $base, $pkg;
668	}
669
670	sub unload_extension {
671	my ($pkg) = @_;
672
673	warn "removing extension $pkg\n";
674
675	# remove hooks
676	#TODO
677	# for my $idx (0 .. $#PLUGIN_EVENT) {
678	# delete $hook[$idx]{$pkg};
679	# }	1654	}
680		1655
681	# remove commands	1656	for ($path) {
682	for my $name (keys %COMMAND) {	1657	redo if s{//}{/};
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1658	redo if s{/\.?/}{/};
		1659	redo if s{/[^/]+/\.\./}{/};
		1660	}
684		1661
685	if (@cb) {	1662	$path
686	$COMMAND{$name} = \@cb;	1663	}
		1664
		1665	sub new_from_path {
		1666	my (undef, $path, $base) = @_;
		1667
		1668	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1669
		1670	$path = normalise $path, $base;
		1671
		1672	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1673	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1674	my $self = bless cf::map::new, $pkg;
		1675	$self->{path} = $path; $self->path ($path);
		1676	$self->init; # pass $1 etc.
		1677	return $self;
		1678	}
		1679	}
		1680
		1681	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1682	()
		1683	}
		1684
		1685	sub init {
		1686	my ($self) = @_;
		1687
		1688	$self
		1689	}
		1690
		1691	sub as_string {
		1692	my ($self) = @_;
		1693
		1694	"$self->{path}"
		1695	}
		1696
		1697	# the displayed name, this is a one way mapping
		1698	sub visible_name {
		1699	&as_string
		1700	}
		1701
		1702	# the original (read-only) location
		1703	sub load_path {
		1704	my ($self) = @_;
		1705
		1706	"$MAPDIR/$self->{path}.map"
		1707	}
		1708
		1709	# the temporary/swap location
		1710	sub save_path {
		1711	my ($self) = @_;
		1712
		1713	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1714	"$TMPDIR/$path.map"
		1715	}
		1716
		1717	# the unique path, undef == no special unique path
		1718	sub uniq_path {
		1719	my ($self) = @_;
		1720
		1721	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1722	"$UNIQUEDIR/$path"
		1723	}
		1724
		1725	# and all this just because we cannot iterate over
		1726	# all maps in C++...
		1727	sub change_all_map_light {
		1728	my ($change) = @_;
		1729
		1730	$_->change_map_light ($change)
		1731	for grep $_->outdoor, values %cf::MAP;
		1732	}
		1733
		1734	sub decay_objects {
		1735	my ($self) = @_;
		1736
		1737	return if $self->{deny_reset};
		1738
		1739	$self->do_decay_objects;
		1740	}
		1741
		1742	sub unlink_save {
		1743	my ($self) = @_;
		1744
		1745	utf8::encode (my $save = $self->save_path);
		1746	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1747	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1748	}
		1749
		1750	sub load_header_from($) {
		1751	my ($self, $path) = @_;
		1752
		1753	utf8::encode $path;
		1754	#aio_open $path, O_RDONLY, 0
		1755	# or return;
		1756
		1757	$self->_load_header ($path)
		1758	or return;
		1759
		1760	$self->{load_path} = $path;
		1761
		1762	1
		1763	}
		1764
		1765	sub load_header_orig {
		1766	my ($self) = @_;
		1767
		1768	$self->load_header_from ($self->load_path)
		1769	}
		1770
		1771	sub load_header_temp {
		1772	my ($self) = @_;
		1773
		1774	$self->load_header_from ($self->save_path)
		1775	}
		1776
		1777	sub prepare_temp {
		1778	my ($self) = @_;
		1779
		1780	$self->last_access ((delete $self->{last_access})
		1781	|| $cf::RUNTIME); #d#
		1782	# safety
		1783	$self->{instantiate_time} = $cf::RUNTIME
		1784	if $self->{instantiate_time} > $cf::RUNTIME;
		1785	}
		1786
		1787	sub prepare_orig {
		1788	my ($self) = @_;
		1789
		1790	$self->{load_original} = 1;
		1791	$self->{instantiate_time} = $cf::RUNTIME;
		1792	$self->last_access ($cf::RUNTIME);
		1793	$self->instantiate;
		1794	}
		1795
		1796	sub load_header {
		1797	my ($self) = @_;
		1798
		1799	if ($self->load_header_temp) {
		1800	$self->prepare_temp;
687	} else {	1801	} else {
688	delete $COMMAND{$name};	1802	$self->load_header_orig
689	}	1803	or return;
		1804	$self->prepare_orig;
		1805	}
		1806
		1807	$self->{deny_reset} = 1
		1808	if $self->no_reset;
		1809
		1810	$self->default_region (cf::region::find_by_path $self->{path})
		1811	unless $self->default_region;
		1812
690	}	1813	1
		1814	}
691		1815
692	# remove extcmds	1816	sub find;
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1817	sub find {
694	delete $EXTCMD{$name};	1818	my ($path, $origin) = @_;
		1819
		1820	$path = normalise $path, $origin && $origin->path;
		1821
		1822	cf::lock_wait "map_find:$path";
		1823
		1824	$cf::MAP{$path} || do {
		1825	my $guard = cf::lock_acquire "map_find:$path";
		1826	my $map = new_from_path cf::map $path
		1827	or return;
		1828
		1829	$map->{last_save} = $cf::RUNTIME;
		1830
		1831	$map->load_header
		1832	or return;
		1833
		1834	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1835	# doing this can freeze the server in a sync job, obviously
		1836	#$cf::WAIT_FOR_TICK->wait;
		1837	$map->reset;
		1838	undef $guard;
		1839	return find $path;
		1840	}
		1841
		1842	$cf::MAP{$path} = $map
		1843	}
		1844	}
		1845
		1846	sub pre_load { }
		1847	sub post_load { }
		1848
		1849	sub load {
		1850	my ($self) = @_;
		1851
		1852	local $self->{deny_reset} = 1; # loading can take a long time
		1853
		1854	my $path = $self->{path};
		1855
695	}	1856	{
		1857	my $guard = cf::lock_acquire "map_load:$path";
696		1858
697	if (my $cb = $pkg->can ("unload")) {	1859	return if $self->in_memory != cf::MAP_SWAPPED;
698	eval {	1860
699	$cb->($pkg);	1861	$self->in_memory (cf::MAP_LOADING);
		1862
		1863	$self->alloc;
		1864
		1865	$self->pre_load;
		1866	Coro::cede;
		1867
		1868	$self->_load_objects ($self->{load_path}, 1)
		1869	or return;
		1870
		1871	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1872	if delete $self->{load_original};
		1873
		1874	if (my $uniq = $self->uniq_path) {
		1875	utf8::encode $uniq;
		1876	if (aio_open $uniq, O_RDONLY, 0) {
		1877	$self->clear_unique_items;
		1878	$self->_load_objects ($uniq, 0);
700	1	1879	}
701	} or warn "$pkg unloaded, but with errors: $@";	1880	}
702	}
703		1881
704	Symbol::delete_package $pkg;	1882	Coro::cede;
705	}	1883	# now do the right thing for maps
		1884	$self->link_multipart_objects;
		1885	$self->difficulty ($self->estimate_difficulty)
		1886	unless $self->difficulty;
		1887	Coro::cede;
706		1888
707	sub load_extensions {	1889	unless ($self->{deny_activate}) {
708	for my $ext (<$LIBDIR/*.ext>) {	1890	$self->decay_objects;
709	next unless -r $ext;	1891	$self->fix_auto_apply;
710	eval {	1892	$self->update_buttons;
711	load_extension $ext;	1893	Coro::cede;
712	1	1894	$self->set_darkness_map;
713	} or warn "$ext not loaded: $@";	1895	Coro::cede;
714	}	1896	$self->activate;
715	}	1897	}
716		1898
717	#############################################################################	1899	$self->{last_save} = $cf::RUNTIME;
718	# load/save/clean perl data associated with a map	1900	$self->last_access ($cf::RUNTIME);
719		1901
720	*cf::mapsupport::on_clean = sub {	1902	$self->in_memory (cf::MAP_IN_MEMORY);
		1903	}
		1904
		1905	$self->post_load;
		1906	}
		1907
		1908	sub customise_for {
		1909	my ($self, $ob) = @_;
		1910
		1911	return find "~" . $ob->name . "/" . $self->{path}
		1912	if $self->per_player;
		1913
		1914	# return find "?party/" . $ob->name . "/" . $self->{path}
		1915	# if $self->per_party;
		1916
		1917	$self
		1918	}
		1919
		1920	# find and load all maps in the 3x3 area around a map
		1921	sub load_neighbours {
721	my ($map) = @_;	1922	my ($map) = @_;
722		1923
723	my $path = $map->tmpname;	1924	my @neigh; # diagonal neighbours
724	defined $path or return;
725		1925
726	unlink "$path.pst";	1926	for (0 .. 3) {
727	};	1927	my $neigh = $map->tile_path ($_)
		1928	or next;
		1929	$neigh = find $neigh, $map
		1930	or next;
		1931	$neigh->load;
728		1932
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1933	push @neigh,
		1934	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1935	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1936	}
730		1937
731	#############################################################################	1938	for (grep defined $_->[0], @neigh) {
732	# load/save perl data associated with player->ob objects	1939	my ($path, $origin) = @$_;
733		1940	my $neigh = find $path, $origin
734	sub all_objects(@) {	1941	or next;
735	@_, map all_objects ($_->inv), @_	1942	$neigh->load;
		1943	}
736	}	1944	}
737		1945
738	# TODO: compatibility cruft, remove when no longer needed	1946	sub find_sync {
739	cf::player->attach (	1947	my ($path, $origin) = @_;
740	on_load => sub {
741	my ($pl, $path) = @_;
742		1948
743	for my $o (all_objects $pl->ob) {	1949	cf::sync_job { find $path, $origin }
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1950	}
745	$o->set_ob_key_value ("_perl_data");
746		1951
747	%$o = %{ Storable::thaw pack "H*", $value };	1952	sub do_load_sync {
		1953	my ($map) = @_;
		1954
		1955	cf::sync_job { $map->load };
		1956	}
		1957
		1958	our %MAP_PREFETCH;
		1959	our $MAP_PREFETCHER = undef;
		1960
		1961	sub find_async {
		1962	my ($path, $origin) = @_;
		1963
		1964	$path = normalise $path, $origin && $origin->{path};
		1965
		1966	if (my $map = $cf::MAP{$path}) {
		1967	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1968	}
		1969
		1970	undef $MAP_PREFETCH{$path};
		1971	$MAP_PREFETCHER ||= cf::async {
		1972	while (%MAP_PREFETCH) {
		1973	for my $path (keys %MAP_PREFETCH) {
		1974	if (my $map = find $path) {
		1975	$map->load;
		1976	}
		1977
		1978	delete $MAP_PREFETCH{$path};
748	}	1979	}
749	}	1980	}
		1981	undef $MAP_PREFETCHER;
		1982	};
		1983	$MAP_PREFETCHER->prio (6);
		1984
		1985	()
		1986	}
		1987
		1988	sub save {
		1989	my ($self) = @_;
		1990
		1991	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1992
		1993	$self->{last_save} = $cf::RUNTIME;
		1994
		1995	return unless $self->dirty;
		1996
		1997	my $save = $self->save_path; utf8::encode $save;
		1998	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1999
		2000	$self->{load_path} = $save;
		2001
		2002	return if $self->{deny_save};
		2003
		2004	local $self->{last_access} = $self->last_access;#d#
		2005
		2006	cf::async {
		2007	$_->contr->save for $self->players;
		2008	};
		2009
		2010	if ($uniq) {
		2011	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2012	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2013	} else {
		2014	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
750	},	2015	}
751	);	2016	}
752		2017
753	#############################################################################	2018	sub swap_out {
		2019	my ($self) = @_;
754		2020
755	=head2 CORE EXTENSIONS	2021	# save first because save cedes
		2022	$self->save;
756		2023
757	Functions and methods that extend core crossfire objects.	2024	my $lock = cf::lock_acquire "map_data:" . $self->path;
758		2025
759	=head3 cf::player	2026	return if $self->players;
		2027	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2028	return if $self->{deny_save};
		2029
		2030	$self->clear;
		2031	$self->in_memory (cf::MAP_SWAPPED);
		2032	}
		2033
		2034	sub reset_at {
		2035	my ($self) = @_;
		2036
		2037	# TODO: safety, remove and allow resettable per-player maps
		2038	return 1e99 if $self->{deny_reset};
		2039
		2040	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2041	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2042
		2043	$time + $to
		2044	}
		2045
		2046	sub should_reset {
		2047	my ($self) = @_;
		2048
		2049	$self->reset_at <= $cf::RUNTIME
		2050	}
		2051
		2052	sub reset {
		2053	my ($self) = @_;
		2054
		2055	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2056
		2057	return if $self->players;
		2058
		2059	warn "resetting map ", $self->path;
		2060
		2061	$self->in_memory (cf::MAP_SWAPPED);
		2062
		2063	# need to save uniques path
		2064	unless ($self->{deny_save}) {
		2065	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2066
		2067	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2068	if $uniq;
		2069	}
		2070
		2071	delete $cf::MAP{$self->path};
		2072
		2073	$self->clear;
		2074
		2075	$_->clear_links_to ($self) for values %cf::MAP;
		2076
		2077	$self->unlink_save;
		2078	$self->destroy;
		2079	}
		2080
		2081	my $nuke_counter = "aaaa";
		2082
		2083	sub nuke {
		2084	my ($self) = @_;
		2085
		2086	delete $cf::MAP{$self->path};
		2087
		2088	$self->unlink_save;
		2089
		2090	bless $self, "cf::map";
		2091	delete $self->{deny_reset};
		2092	$self->{deny_save} = 1;
		2093	$self->reset_timeout (1);
		2094	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2095
		2096	$cf::MAP{$self->path} = $self;
		2097
		2098	$self->reset; # polite request, might not happen
		2099	}
		2100
		2101	=item $maps = cf::map::tmp_maps
		2102
		2103	Returns an arrayref with all map paths of currently instantiated and saved
		2104	maps. May block.
		2105
		2106	=cut
		2107
		2108	sub tmp_maps() {
		2109	[
		2110	map {
		2111	utf8::decode $_;
		2112	/\.map$/
		2113	? normalise $_
		2114	: ()
		2115	} @{ aio_readdir $TMPDIR or [] }
		2116	]
		2117	}
		2118
		2119	=item $maps = cf::map::random_maps
		2120
		2121	Returns an arrayref with all map paths of currently instantiated and saved
		2122	random maps. May block.
		2123
		2124	=cut
		2125
		2126	sub random_maps() {
		2127	[
		2128	map {
		2129	utf8::decode $_;
		2130	/\.map$/
		2131	? normalise "?random/$_"
		2132	: ()
		2133	} @{ aio_readdir $RANDOMDIR or [] }
		2134	]
		2135	}
		2136
		2137	=item cf::map::unique_maps
		2138
		2139	Returns an arrayref of paths of all shared maps that have
		2140	instantiated unique items. May block.
		2141
		2142	=cut
		2143
		2144	sub unique_maps() {
		2145	[
		2146	map {
		2147	utf8::decode $_;
		2148	/\.map$/
		2149	? normalise $_
		2150	: ()
		2151	} @{ aio_readdir $UNIQUEDIR or [] }
		2152	]
		2153	}
		2154
		2155	package cf;
		2156
		2157	=back
		2158
		2159	=head3 cf::object
		2160
		2161	=cut
		2162
		2163	package cf::object;
760		2164
761	=over 4	2165	=over 4
762		2166
763	=item cf::player::exists $login	2167	=item $ob->inv_recursive
764		2168
765	Returns true when the given account exists.	2169	Returns the inventory of the object _and_ their inventories, recursively.
766		2170
767	=cut	2171	=cut
768		2172
769	sub cf::player::exists($) {	2173	sub inv_recursive_;
770	cf::player::find $_[0]	2174	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2175	map { $_, inv_recursive_ $_->inv } @_
772	}	2176	}
773		2177
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	2178	sub inv_recursive {
775		2179	inv_recursive_ inv $_[0]
776	Sends an ext reply to the player.
777
778	=cut
779
780	sub cf::player::ext_reply($$$%) {
781	my ($self, $id, %msg) = @_;
782
783	$msg{msgid} = $id;
784
785	$self->send ("ext " . to_json \%msg);
786	}	2180	}
		2181
		2182	package cf;
787		2183
788	=back	2184	=back
789		2185
790	=head3 cf::object::player	2186	=head3 cf::object::player
791		2187
…		…
807		2203
808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2204	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
809		2205
810	if ($self->{record_replies}) {	2206	if ($self->{record_replies}) {
811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2207	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2208
812	} else {	2209	} else {
		2210	my $pl = $self->contr;
		2211
		2212	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2213	my $dialog = $pl->{npc_dialog};
		2214	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2215
		2216	} else {
813	$msg = $npc->name . " says: $msg" if $npc;	2217	$msg = $npc->name . " says: $msg" if $npc;
814	$self->message ($msg, $flags);	2218	$self->message ($msg, $flags);
		2219	}
815	}	2220	}
		2221	}
		2222
		2223	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2224
		2225	=cut
		2226
		2227	sub cf::object::send_msg {
		2228	my $pl = shift->contr
		2229	or return;
		2230	$pl->send_msg (@_);
816	}	2231	}
817		2232
818	=item $player_object->may ("access")	2233	=item $player_object->may ("access")
819		2234
820	Returns wether the given player is authorized to access resource "access"	2235	Returns wether the given player is authorized to access resource "access"
…		…
829	(ref $cf::CFG{"may_$access"}	2244	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2245	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	2246	: $cf::CFG{"may_$access"})
832	}	2247	}
833		2248
		2249	=item $player_object->enter_link
		2250
		2251	Freezes the player and moves him/her to a special map (C<{link}>).
		2252
		2253	The player should be reasonably safe there for short amounts of time. You
		2254	I<MUST> call C<leave_link> as soon as possible, though.
		2255
		2256	Will never block.
		2257
		2258	=item $player_object->leave_link ($map, $x, $y)
		2259
		2260	Moves the player out of the special C<{link}> map onto the specified
		2261	map. If the map is not valid (or omitted), the player will be moved back
		2262	to the location he/she was before the call to C<enter_link>, or, if that
		2263	fails, to the emergency map position.
		2264
		2265	Might block.
		2266
		2267	=cut
		2268
		2269	sub link_map {
		2270	unless ($LINK_MAP) {
		2271	$LINK_MAP = cf::map::find "{link}"
		2272	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2273	$LINK_MAP->load;
		2274	}
		2275
		2276	$LINK_MAP
		2277	}
		2278
		2279	sub cf::object::player::enter_link {
		2280	my ($self) = @_;
		2281
		2282	$self->deactivate_recursive;
		2283
		2284	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2285
		2286	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2287	if $self->map && $self->map->{path} ne "{link}";
		2288
		2289	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2290	}
		2291
		2292	sub cf::object::player::leave_link {
		2293	my ($self, $map, $x, $y) = @_;
		2294
		2295	return unless $self->contr->active;
		2296
		2297	my $link_pos = delete $self->{_link_pos};
		2298
		2299	unless ($map) {
		2300	# restore original map position
		2301	($map, $x, $y) = @{ $link_pos || [] };
		2302	$map = cf::map::find $map;
		2303
		2304	unless ($map) {
		2305	($map, $x, $y) = @$EMERGENCY_POSITION;
		2306	$map = cf::map::find $map
		2307	or die "FATAL: cannot load emergency map\n";
		2308	}
		2309	}
		2310
		2311	($x, $y) = (-1, -1)
		2312	unless (defined $x) && (defined $y);
		2313
		2314	# use -1 or undef as default coordinates, not 0, 0
		2315	($x, $y) = ($map->enter_x, $map->enter_y)
		2316	if $x <=0 && $y <= 0;
		2317
		2318	$map->load;
		2319	$map->load_neighbours;
		2320
		2321	return unless $self->contr->active;
		2322	$self->activate_recursive;
		2323
		2324	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2325	$self->enter_map ($map, $x, $y);
		2326	}
		2327
		2328	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2329
		2330	Moves the player to the given map-path and coordinates by first freezing
		2331	her, loading and preparing them map, calling the provided $check callback
		2332	that has to return the map if sucecssful, and then unfreezes the player on
		2333	the new (success) or old (failed) map position. In either case, $done will
		2334	be called at the end of this process.
		2335
		2336	=cut
		2337
		2338	our $GOTOGEN;
		2339
		2340	sub cf::object::player::goto {
		2341	my ($self, $path, $x, $y, $check, $done) = @_;
		2342
		2343	# do generation counting so two concurrent goto's will be executed in-order
		2344	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2345
		2346	$self->enter_link;
		2347
		2348	(async {
		2349	my $map = eval {
		2350	my $map = cf::map::find $path;
		2351
		2352	if ($map) {
		2353	$map = $map->customise_for ($self);
		2354	$map = $check->($map) if $check && $map;
		2355	} else {
		2356	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2357	}
		2358
		2359	$map
		2360	};
		2361
		2362	if ($@) {
		2363	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2364	LOG llevError | logBacktrace, Carp::longmess $@;
		2365	}
		2366
		2367	if ($gen == $self->{_goto_generation}) {
		2368	delete $self->{_goto_generation};
		2369	$self->leave_link ($map, $x, $y);
		2370	}
		2371
		2372	$done->() if $done;
		2373	})->prio (1);
		2374	}
		2375
		2376	=item $player_object->enter_exit ($exit_object)
		2377
		2378	=cut
		2379
		2380	sub parse_random_map_params {
		2381	my ($spec) = @_;
		2382
		2383	my $rmp = { # defaults
		2384	xsize => (cf::rndm 15, 40),
		2385	ysize => (cf::rndm 15, 40),
		2386	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2387	#layout => string,
		2388	};
		2389
		2390	for (split /\n/, $spec) {
		2391	my ($k, $v) = split /\s+/, $_, 2;
		2392
		2393	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2394	}
		2395
		2396	$rmp
		2397	}
		2398
		2399	sub prepare_random_map {
		2400	my ($exit) = @_;
		2401
		2402	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2403
		2404	# all this does is basically replace the /! path by
		2405	# a new random map path (?random/...) with a seed
		2406	# that depends on the exit object
		2407
		2408	my $rmp = parse_random_map_params $exit->msg;
		2409
		2410	if ($exit->map) {
		2411	$rmp->{region} = $exit->region->name;
		2412	$rmp->{origin_map} = $exit->map->path;
		2413	$rmp->{origin_x} = $exit->x;
		2414	$rmp->{origin_y} = $exit->y;
		2415	}
		2416
		2417	$rmp->{random_seed} ||= $exit->random_seed;
		2418
		2419	my $data = cf::to_json $rmp;
		2420	my $md5 = Digest::MD5::md5_hex $data;
		2421	my $meta = "$RANDOMDIR/$md5.meta";
		2422
		2423	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2424	aio_write $fh, 0, (length $data), $data, 0;
		2425	undef $fh;
		2426	aio_rename "$meta~", $meta;
		2427
		2428	$exit->slaying ("?random/$md5");
		2429	$exit->msg (undef);
		2430	}
		2431	}
		2432
		2433	sub cf::object::player::enter_exit {
		2434	my ($self, $exit) = @_;
		2435
		2436	return unless $self->type == cf::PLAYER;
		2437
		2438	if ($exit->slaying eq "/!") {
		2439	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2440	# the problem is that $exit might not survive long enough
		2441	# so it needs to be done right now, right here
		2442	cf::sync_job { prepare_random_map $exit };
		2443	}
		2444
		2445	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2446	my $hp = $exit->stats->hp;
		2447	my $sp = $exit->stats->sp;
		2448
		2449	$self->enter_link;
		2450
		2451	# if exit is damned, update players death & WoR home-position
		2452	$self->contr->savebed ($slaying, $hp, $sp)
		2453	if $exit->flag (FLAG_DAMNED);
		2454
		2455	(async {
		2456	$self->deactivate_recursive; # just to be sure
		2457	unless (eval {
		2458	$self->goto ($slaying, $hp, $sp);
		2459
		2460	1;
		2461	}) {
		2462	$self->message ("Something went wrong deep within the crossfire server. "
		2463	. "I'll try to bring you back to the map you were before. "
		2464	. "Please report this to the dungeon master!",
		2465	cf::NDI_UNIQUE | cf::NDI_RED);
		2466
		2467	warn "ERROR in enter_exit: $@";
		2468	$self->leave_link;
		2469	}
		2470	})->prio (1);
		2471	}
		2472
834	=head3 cf::client	2473	=head3 cf::client
835		2474
836	=over 4	2475	=over 4
837		2476
838	=item $client->send_drawinfo ($text, $flags)	2477	=item $client->send_drawinfo ($text, $flags)
…		…
844		2483
845	sub cf::client::send_drawinfo {	2484	sub cf::client::send_drawinfo {
846	my ($self, $text, $flags) = @_;	2485	my ($self, $text, $flags) = @_;
847		2486
848	utf8::encode $text;	2487	utf8::encode $text;
849	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2488	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
850	}	2489	}
851		2490
		2491	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2492
		2493	Send a drawinfo or msg packet to the client, formatting the msg for the
		2494	client if neccessary. C<$type> should be a string identifying the type of
		2495	the message, with C<log> being the default. If C<$color> is negative, suppress
		2496	the message unless the client supports the msg packet.
		2497
		2498	=cut
		2499
		2500	sub cf::client::send_msg {
		2501	my ($self, $channel, $msg, $color, @extra) = @_;
		2502
		2503	$msg = $self->pl->expand_cfpod ($msg);
		2504
		2505	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2506
		2507	if (ref $channel) {
		2508	# send meta info to client, if not yet sent
		2509	unless (exists $self->{channel}{$channel->{id}}) {
		2510	$self->{channel}{$channel->{id}} = $channel;
		2511	$self->ext_msg (channel_info => $channel);
		2512	}
		2513
		2514	$channel = $channel->{id};
		2515	}
		2516
		2517	return unless @extra || length $msg;
		2518
		2519	if ($self->can_msg) {
		2520	# default colour, mask it out
		2521	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2522	if $color & cf::NDI_DEF;
		2523
		2524	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2525	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2526	} else {
		2527	if ($color >= 0) {
		2528	# replace some tags by gcfclient-compatible ones
		2529	for ($msg) {
		2530	1 while
		2531	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2532	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2533	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2534	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2535	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2536	}
		2537
		2538	$color &= cf::NDI_COLOR_MASK;
		2539
		2540	utf8::encode $msg;
		2541
		2542	if (0 && $msg =~ /\[/) {
		2543	# COMMAND/INFO
		2544	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2545	} else {
		2546	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2547	$self->send_packet ("drawinfo $color $msg")
		2548	}
		2549	}
		2550	}
		2551	}
		2552
		2553	=item $client->ext_msg ($type, @msg)
		2554
		2555	Sends an ext event to the client.
		2556
		2557	=cut
		2558
		2559	sub cf::client::ext_msg($$@) {
		2560	my ($self, $type, @msg) = @_;
		2561
		2562	my $extcmd = $self->extcmd;
		2563
		2564	if ($extcmd == 2) {
		2565	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2566	} elsif ($extcmd == 1) { # TODO: remove
		2567	push @msg, msgtype => "event_$type";
		2568	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2569	}
		2570	}
852		2571
853	=item $success = $client->query ($flags, "text", \&cb)	2572	=item $success = $client->query ($flags, "text", \&cb)
854		2573
855	Queues a query to the client, calling the given callback with	2574	Queues a query to the client, calling the given callback with
856	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2575	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
857	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2576	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
858		2577
859	Queries can fail, so check the return code. Or don't, as queries will become	2578	Queries can fail, so check the return code. Or don't, as queries will
860	reliable at some point in the future.	2579	become reliable at some point in the future.
861		2580
862	=cut	2581	=cut
863		2582
864	sub cf::client::query {	2583	sub cf::client::query {
865	my ($self, $flags, $text, $cb) = @_;	2584	my ($self, $flags, $text, $cb) = @_;
…		…
873	utf8::encode $text;	2592	utf8::encode $text;
874	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2593	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
875		2594
876	$self->send_packet ($self->{query_queue}[0][0])	2595	$self->send_packet ($self->{query_queue}[0][0])
877	if @{ $self->{query_queue} } == 1;	2596	if @{ $self->{query_queue} } == 1;
		2597
		2598	1
878	}	2599	}
879		2600
880	cf::client->attach (	2601	cf::client->attach (
		2602	on_connect => sub {
		2603	my ($ns) = @_;
		2604
		2605	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2606	},
881	on_reply => sub {	2607	on_reply => sub {
882	my ($ns, $msg) = @_;	2608	my ($ns, $msg) = @_;
883		2609
884	# this weird shuffling is so that direct followup queries	2610	# this weird shuffling is so that direct followup queries
885	# get handled first	2611	# get handled first
886	my $queue = delete $ns->{query_queue};	2612	my $queue = delete $ns->{query_queue}
		2613	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		2614
888	(shift @$queue)->[1]->($msg);	2615	(shift @$queue)->[1]->($msg);
		2616	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
889		2617
890	push @{ $ns->{query_queue} }, @$queue;	2618	push @{ $ns->{query_queue} }, @$queue;
891		2619
892	if (@{ $ns->{query_queue} } == @$queue) {	2620	if (@{ $ns->{query_queue} } == @$queue) {
893	if (@$queue) {	2621	if (@$queue) {
…		…
895	} else {	2623	} else {
896	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2624	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
897	}	2625	}
898	}	2626	}
899	},	2627	},
		2628	on_exticmd => sub {
		2629	my ($ns, $buf) = @_;
		2630
		2631	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2632
		2633	if (ref $msg) {
		2634	my ($type, $reply, @payload) =
		2635	"ARRAY" eq ref $msg
		2636	? @$msg
		2637	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2638
		2639	if (my $cb = $EXTICMD{$type}) {
		2640	my @reply = $cb->($ns, @payload);
		2641
		2642	$ns->ext_reply ($reply, @reply)
		2643	if $reply;
		2644	}
		2645	} else {
		2646	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2647	}
		2648
		2649	cf::override;
		2650	},
900	);	2651	);
901		2652
902	=item $client->coro (\&cb)	2653	=item $client->async (\&cb)
903		2654
904	Create a new coroutine, running the specified callback. The coroutine will	2655	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	2656	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	2657	or loss of connection).
907		2658
908	=cut	2659	=cut
909		2660
910	sub cf::client::coro {	2661	sub cf::client::async {
911	my ($self, $cb) = @_;	2662	my ($self, $cb) = @_;
912		2663
913	my $coro; $coro = async {	2664	my $coro = &Coro::async ($cb);
914	eval {	2665
915	$cb->();	2666	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	2667	delete $self->{_coro}{$coro+0};
919	};	2668	});
920		2669
921	$self->{_coro}{$coro+0} = $coro;	2670	$self->{_coro}{$coro+0} = $coro;
		2671
		2672	$coro
922	}	2673	}
923		2674
924	cf::client->attach (	2675	cf::client->attach (
925	on_destroy => sub {	2676	on_destroy => sub {
926	my ($ns) = @_;	2677	my ($ns) = @_;
…		…
945	our $safe = new Safe "safe";	2696	our $safe = new Safe "safe";
946	our $safe_hole = new Safe::Hole;	2697	our $safe_hole = new Safe::Hole;
947		2698
948	$SIG{FPE} = 'IGNORE';	2699	$SIG{FPE} = 'IGNORE';
949		2700
950	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2701	$safe->permit_only (Opcode::opset qw(
		2702	:base_core :base_mem :base_orig :base_math
		2703	grepstart grepwhile mapstart mapwhile
		2704	sort time
		2705	));
951		2706
952	# here we export the classes and methods available to script code	2707	# here we export the classes and methods available to script code
953		2708
954	=pod	2709	=pod
955		2710
956	The following fucntions and emthods are available within a safe environment:	2711	The following functions and methods are available within a safe environment:
957		2712
958	cf::object contr pay_amount pay_player map	2713	cf::object
		2714	contr pay_amount pay_player map x y force_find force_add
		2715	insert remove name archname title slaying race
		2716
959	cf::object::player player	2717	cf::object::player
960	cf::player peaceful	2718	player
961	cf::map trigger	2719
		2720	cf::player
		2721	peaceful
		2722
		2723	cf::map
		2724	trigger
962		2725
963	=cut	2726	=cut
964		2727
965	for (	2728	for (
966	["cf::object" => qw(contr pay_amount pay_player map)],	2729	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2730	insert remove inv name archname title slaying race)],
967	["cf::object::player" => qw(player)],	2731	["cf::object::player" => qw(player)],
968	["cf::player" => qw(peaceful)],	2732	["cf::player" => qw(peaceful)],
969	["cf::map" => qw(trigger)],	2733	["cf::map" => qw(trigger)],
970	) {	2734	) {
971	no strict 'refs';	2735	no strict 'refs';
…		…
1042	=back	2806	=back
1043		2807
1044	=cut	2808	=cut
1045		2809
1046	#############################################################################	2810	#############################################################################
		2811	# the server's init and main functions
1047		2812
1048	=head2 EXTENSION DATABASE SUPPORT	2813	sub load_facedata($) {
		2814	my ($path) = @_;
1049		2815
1050	Crossfire maintains a very simple database for extension use. It can	2816	my $enc = JSON::XS->new->utf8->canonical;
1051	currently store anything that can be serialised using Storable, which
1052	excludes objects.
1053		2817
1054	The parameter C<$family> should best start with the name of the extension	2818	warn "loading facedata from $path\n";
1055	using it, it should be unique.
1056		2819
1057	=over 4	2820	my $facedata;
		2821	0 < aio_load $path, $facedata
		2822	or die "$path: $!";
1058		2823
1059	=item $hashref = cf::db_get $family	2824	$facedata = Coro::Storable::thaw $facedata;
1060		2825
1061	Return a hashref for use by the extension C<$family>, which can be	2826	$facedata->{version} == 2
1062	modified. After modifications, you have to call C<cf::db_dirty> or	2827	or cf::cleanup "$path: version mismatch, cannot proceed.";
1063	C<cf::db_sync>.
1064		2828
1065	=item $value = cf::db_get $family => $key	2829	# patch in the exptable
1066		2830	$facedata->{resource}{"res/exp_table"} = {
1067	Returns a single value from the database	2831	type => FT_RSRC,
1068		2832	data => $enc->encode ([map cf::level_to_min_exp $_, 0 .. cf::settings->max_level]),
1069	=item cf::db_put $family => $hashref
1070
1071	Stores the given family hashref into the database. Updates are delayed, if
1072	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1073
1074	=item cf::db_put $family => $key => $value
1075
1076	Stores the given C<$value> in the family hash. Updates are delayed, if you
1077	want the data to be synced to disk immediately, use C<cf::db_sync>.
1078
1079	=item cf::db_dirty
1080
1081	Marks the database as dirty, to be updated at a later time.
1082
1083	=item cf::db_sync
1084
1085	Immediately write the database to disk I<if it is dirty>.
1086
1087	=cut
1088
1089	our $DB;
1090
1091	{
1092	my $path = cf::localdir . "/database.pst";
1093
1094	sub db_load() {
1095	warn "loading database $path\n";#d# remove later
1096	$DB = stat $path ? Storable::retrieve $path : { };
1097	}
1098
1099	my $pid;
1100
1101	sub db_save() {
1102	warn "saving database $path\n";#d# remove later
1103	waitpid $pid, 0 if $pid;
1104	if (0 == ($pid = fork)) {
1105	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;
1108	cf::_exit 0 if defined $pid;
1109	}
1110	}
1111
1112	my $dirty;
1113
1114	sub db_sync() {
1115	db_save if $dirty;
1116	undef $dirty;
1117	}
1118
1119	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1120	db_sync;
1121	});	2833	};
		2834	cf::cede_to_tick;
1122		2835
1123	sub db_dirty() {
1124	$dirty = 1;
1125	$idle->start;
1126	}	2836	{
		2837	my $faces = $facedata->{faceinfo};
1127		2838
1128	sub db_get($;$) {	2839	while (my ($face, $info) = each %$faces) {
1129	@_ >= 2	2840	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1130	? $DB->{$_[0]}{$_[1]}	2841	cf::face::set_visibility $idx, $info->{visibility};
1131	: ($DB->{$_[0]} ||= { })	2842	cf::face::set_magicmap $idx, $info->{magicmap};
1132	}	2843	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2844	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1133		2845
1134	sub db_put($$;$) {	2846	cf::cede_to_tick;
1135	if (@_ >= 3) {
1136	$DB->{$_[0]}{$_[1]} = $_[2];
1137	} else {
1138	$DB->{$_[0]} = $_[1];
1139	}
1140	db_dirty;
1141	}
1142
1143	cf::global->attach (
1144	prio => 10000,
1145	on_cleanup => sub {
1146	db_sync;
1147	},	2847	}
1148	);
1149	}
1150		2848
1151	#############################################################################	2849	while (my ($face, $info) = each %$faces) {
1152	# the server's main()	2850	next unless $info->{smooth};
		2851	my $idx = cf::face::find $face
		2852	or next;
		2853	if (my $smooth = cf::face::find $info->{smooth}) {
		2854	cf::face::set_smooth $idx, $smooth;
		2855	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2856	} else {
		2857	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2858	}
		2859
		2860	cf::cede_to_tick;
		2861	}
		2862	}
		2863
		2864	{
		2865	my $anims = $facedata->{animinfo};
		2866
		2867	while (my ($anim, $info) = each %$anims) {
		2868	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2869	cf::cede_to_tick;
		2870	}
		2871
		2872	cf::anim::invalidate_all; # d'oh
		2873	}
		2874
		2875	{
		2876	# TODO: for gcfclient pleasure, we should give resources
		2877	# that gcfclient doesn't grok a >10000 face index.
		2878	my $res = $facedata->{resource};
		2879
		2880	my $soundconf = delete $res->{"res/sound.conf"};
		2881
		2882	while (my ($name, $info) = each %$res) {
		2883	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2884	my $data;
		2885
		2886	if ($info->{type} & 1) {
		2887	# prepend meta info
		2888
		2889	my $meta = $enc->encode ({
		2890	name => $name,
		2891	%{ $info->{meta} || {} },
		2892	});
		2893
		2894	$data = pack "(w/a*)*", $meta, $info->{data};
		2895	}
		2896
		2897	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2898	cf::face::set_type $idx, $info->{type};
		2899
		2900	cf::cede_to_tick;
		2901	}
		2902
		2903	if ($soundconf) {
		2904	$soundconf = $enc->decode (delete $soundconf->{data});
		2905
		2906	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2907	my $sound = $soundconf->{compat}[$_]
		2908	or next;
		2909
		2910	my $face = cf::face::find "sound/$sound->[1]";
		2911	cf::sound::set $sound->[0] => $face;
		2912	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2913	}
		2914
		2915	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2916	my $face = cf::face::find "sound/$v";
		2917	cf::sound::set $k => $face;
		2918	}
		2919	}
		2920	}
		2921
		2922	1
		2923	}
		2924
		2925	register_exticmd fx_want => sub {
		2926	my ($ns, $want) = @_;
		2927
		2928	while (my ($k, $v) = each %$want) {
		2929	$ns->fx_want ($k, $v);
		2930	}
		2931	};
		2932
		2933	sub reload_regions {
		2934	load_resource_file "$MAPDIR/regions"
		2935	or die "unable to load regions file\n";
		2936
		2937	for (cf::region::list) {
		2938	$_->{match} = qr/$_->{match}/
		2939	if exists $_->{match};
		2940	}
		2941	}
		2942
		2943	sub reload_facedata {
		2944	load_facedata "$DATADIR/facedata"
		2945	or die "unable to load facedata\n";
		2946	}
		2947
		2948	sub reload_archetypes {
		2949	load_resource_file "$DATADIR/archetypes"
		2950	or die "unable to load archetypes\n";
		2951	#d# NEED to laod twice to resolve forward references
		2952	# this really needs to be done in an extra post-pass
		2953	# (which needs to be synchronous, so solve it differently)
		2954	load_resource_file "$DATADIR/archetypes"
		2955	or die "unable to load archetypes\n";
		2956	}
		2957
		2958	sub reload_treasures {
		2959	load_resource_file "$DATADIR/treasures"
		2960	or die "unable to load treasurelists\n";
		2961	}
		2962
		2963	sub reload_resources {
		2964	warn "reloading resource files...\n";
		2965
		2966	reload_regions;
		2967	reload_facedata;
		2968	#reload_archetypes;#d#
		2969	reload_archetypes;
		2970	reload_treasures;
		2971
		2972	warn "finished reloading resource files\n";
		2973	}
		2974
		2975	sub init {
		2976	reload_resources;
		2977	}
1153		2978
1154	sub cfg_load {	2979	sub cfg_load {
1155	open my $fh, "<:utf8", cf::confdir . "/config"	2980	open my $fh, "<:utf8", "$CONFDIR/config"
1156	or return;	2981	or return;
1157		2982
1158	local $/;	2983	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;	2984	*CFG = YAML::Syck::Load <$fh>;
		2985
		2986	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2987
		2988	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2989	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2990
		2991	if (exists $CFG{mlockall}) {
		2992	eval {
		2993	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2994	and die "WARNING: m(un)lockall failed: $!\n";
		2995	};
		2996	warn $@ if $@;
		2997	}
1160	}	2998	}
1161		2999
1162	sub main {	3000	sub main {
		3001	# we must not ever block the main coroutine
		3002	local $Coro::idle = sub {
		3003	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3004	(async {
		3005	Event::one_event;
		3006	})->prio (Coro::PRIO_MAX);
		3007	};
		3008
1163	cfg_load;	3009	cfg_load;
1164	db_load;	3010	db_init;
1165	load_extensions;	3011	load_extensions;
		3012
		3013	$TICK_WATCHER->start;
1166	Event::loop;	3014	Event::loop;
1167	}	3015	}
1168		3016
1169	#############################################################################	3017	#############################################################################
1170	# initialisation	3018	# initialisation and cleanup
1171		3019
1172	sub _perl_reload(&) {	3020	# install some emergency cleanup handlers
		3021	BEGIN {
		3022	for my $signal (qw(INT HUP TERM)) {
		3023	Event->signal (
		3024	reentrant => 0,
		3025	data => WF_AUTOCANCEL,
		3026	signal => $signal,
		3027	prio => 0,
		3028	cb => sub {
		3029	cf::cleanup "SIG$signal";
		3030	},
		3031	);
		3032	}
		3033	}
		3034
		3035	sub write_runtime {
		3036	my $runtime = "$LOCALDIR/runtime";
		3037
		3038	# first touch the runtime file to show we are still running:
		3039	# the fsync below can take a very very long time.
		3040
		3041	IO::AIO::aio_utime $runtime, undef, undef;
		3042
		3043	my $guard = cf::lock_acquire "write_runtime";
		3044
		3045	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3046	or return;
		3047
		3048	my $value = $cf::RUNTIME + 90 + 10;
		3049	# 10 is the runtime save interval, for a monotonic clock
		3050	# 60 allows for the watchdog to kill the server.
		3051
		3052	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3053	and return;
		3054
		3055	# always fsync - this file is important
		3056	aio_fsync $fh
		3057	and return;
		3058
		3059	# touch it again to show we are up-to-date
		3060	aio_utime $fh, undef, undef;
		3061
		3062	close $fh
		3063	or return;
		3064
		3065	aio_rename "$runtime~", $runtime
		3066	and return;
		3067
		3068	warn "runtime file written.\n";
		3069
		3070	1
		3071	}
		3072
		3073	sub emergency_save() {
		3074	my $freeze_guard = cf::freeze_mainloop;
		3075
		3076	warn "enter emergency perl save\n";
		3077
		3078	cf::sync_job {
		3079	# use a peculiar iteration method to avoid tripping on perl
		3080	# refcount bugs in for. also avoids problems with players
		3081	# and maps saved/destroyed asynchronously.
		3082	warn "begin emergency player save\n";
		3083	for my $login (keys %cf::PLAYER) {
		3084	my $pl = $cf::PLAYER{$login} or next;
		3085	$pl->valid or next;
		3086	$pl->save;
		3087	}
		3088	warn "end emergency player save\n";
		3089
		3090	warn "begin emergency map save\n";
		3091	for my $path (keys %cf::MAP) {
		3092	my $map = $cf::MAP{$path} or next;
		3093	$map->valid or next;
		3094	$map->save;
		3095	}
		3096	warn "end emergency map save\n";
		3097
		3098	warn "begin emergency database checkpoint\n";
		3099	BDB::db_env_txn_checkpoint $DB_ENV;
		3100	warn "end emergency database checkpoint\n";
		3101	};
		3102
		3103	warn "leave emergency perl save\n";
		3104	}
		3105
		3106	sub post_cleanup {
1173	my ($msg) = @_;	3107	my ($make_core) = @_;
1174		3108
1175	$msg->("reloading...");	3109	warn Carp::longmess "post_cleanup backtrace"
		3110	if $make_core;
		3111	}
1176		3112
1177	eval {	3113	sub do_reload_perl() {
1178	# cancel all watchers	3114	# can/must only be called in main
		3115	if ($Coro::current != $Coro::main) {
		3116	warn "can only reload from main coroutine";
		3117	return;
		3118	}
		3119
		3120	warn "reloading...";
		3121
		3122	warn "entering sync_job";
		3123
		3124	cf::sync_job {
		3125	cf::write_runtime; # external watchdog should not bark
		3126	cf::emergency_save;
		3127	cf::write_runtime; # external watchdog should not bark
		3128
		3129	warn "syncing database to disk";
		3130	BDB::db_env_txn_checkpoint $DB_ENV;
		3131
		3132	# if anything goes wrong in here, we should simply crash as we already saved
		3133
		3134	warn "cancelling all WF_AUTOCANCEL watchers";
1179	for (Event::all_watchers) {	3135	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;	3136	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}	3137	}
1182		3138
1183	# unload all extensions	3139	warn "flushing outstanding aio requests";
1184	for (@exts) {	3140	for (;;) {
1185	$msg->("unloading <$_>");	3141	BDB::flush;
1186	unload_extension $_;	3142	IO::AIO::flush;
		3143	Coro::cede;
		3144	last unless IO::AIO::nreqs || BDB::nreqs;
		3145	warn "iterate...";
		3146	}
		3147
		3148	++$RELOAD;
		3149
		3150	warn "cancelling all extension coros";
		3151	$_->cancel for values %EXT_CORO;
		3152	%EXT_CORO = ();
		3153
		3154	warn "removing commands";
		3155	%COMMAND = ();
		3156
		3157	warn "removing ext/exti commands";
		3158	%EXTCMD = ();
		3159	%EXTICMD = ();
		3160
		3161	warn "unloading/nuking all extensions";
		3162	for my $pkg (@EXTS) {
		3163	warn "... unloading $pkg";
		3164
		3165	if (my $cb = $pkg->can ("unload")) {
		3166	eval {
		3167	$cb->($pkg);
		3168	1
		3169	} or warn "$pkg unloaded, but with errors: $@";
1187	}	3170	}
1188		3171
		3172	warn "... nuking $pkg";
		3173	Symbol::delete_package $pkg;
		3174	}
		3175
1189	# unload all modules loaded from $LIBDIR	3176	warn "unloading all perl modules loaded from $LIBDIR";
1190	while (my ($k, $v) = each %INC) {	3177	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3178	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192		3179
1193	$msg->("removing <$k>");	3180	warn "... unloading $k";
1194	delete $INC{$k};	3181	delete $INC{$k};
1195		3182
1196	$k =~ s/\.pm$//;	3183	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;	3184	$k =~ s/\//::/g;
1198		3185
…		…
1201	}	3188	}
1202		3189
1203	Symbol::delete_package $k;	3190	Symbol::delete_package $k;
1204	}	3191	}
1205		3192
1206	# sync database to disk
1207	cf::db_sync;
1208
1209	# get rid of safe::, as good as possible	3193	warn "getting rid of safe::, as good as possible";
1210	Symbol::delete_package "safe::$_"	3194	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	3195	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1212		3196
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"	3197	warn "unloading cf.pm \"a bit\"";
1217	delete $INC{"cf.pm"};	3198	delete $INC{"cf.pm"};
		3199	delete $INC{"cf/pod.pm"};
1218		3200
1219	# don't, removes xs symbols, too,	3201	# don't, removes xs symbols, too,
1220	# and global variables created in xs	3202	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;	3203	#Symbol::delete_package __PACKAGE__;
1222		3204
1223	# reload cf.pm	3205	warn "unload completed, starting to reload now";
		3206
1224	$msg->("reloading cf.pm");	3207	warn "reloading cf.pm";
1225	require cf;	3208	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3209	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227		3210
1228	# load config and database again	3211	warn "loading config and database again";
1229	cf::cfg_load;	3212	cf::cfg_load;
1230	cf::db_load;
1231		3213
1232	# load extensions	3214	warn "loading extensions";
1233	$msg->("load extensions");
1234	cf::load_extensions;	3215	cf::load_extensions;
1235		3216
1236	# reattach attachments to objects	3217	warn "reattaching attachments to objects/players";
1237	$msg->("reattach");	3218	_global_reattach; # objects, sockets
1238	_global_reattach;	3219	warn "reattaching attachments to maps";
		3220	reattach $_ for values %MAP;
		3221	warn "reattaching attachments to players";
		3222	reattach $_ for values %PLAYER;
		3223
		3224	warn "leaving sync_job";
		3225
		3226	1
		3227	} or do {
		3228	warn $@;
		3229	warn "error while reloading, exiting.";
		3230	exit 1;
1239	};	3231	};
1240	$msg->($@) if $@;
1241		3232
1242	$msg->("reloaded");	3233	warn "reloaded";
1243	};	3234	};
1244		3235
1245	sub perl_reload() {	3236	our $RELOAD_WATCHER; # used only during reload
1246	_perl_reload {	3237
1247	warn $_[0];	3238	sub reload_perl() {
1248	print "$_[0]\n";	3239	# doing reload synchronously and two reloads happen back-to-back,
		3240	# coro crashes during coro_state_free->destroy here.
		3241
		3242	$RELOAD_WATCHER ||= Event->timer (
		3243	reentrant => 0,
		3244	after => 0,
		3245	data => WF_AUTOCANCEL,
		3246	cb => sub {
		3247	do_reload_perl;
		3248	undef $RELOAD_WATCHER;
		3249	},
1249	};	3250	);
1250	}	3251	}
1251		3252
1252	register "<global>", __PACKAGE__;
1253
1254	register_command "perl-reload" => sub {	3253	register_command "reload" => sub {
1255	my ($who, $arg) = @_;	3254	my ($who, $arg) = @_;
1256		3255
1257	if ($who->flag (FLAG_WIZ)) {	3256	if ($who->flag (FLAG_WIZ)) {
1258	_perl_reload {	3257	$who->message ("reloading server.");
1259	warn $_[0];	3258	async { reload_perl };
1260	$who->message ($_[0]);	3259	}
		3260	};
		3261
		3262	unshift @INC, $LIBDIR;
		3263
		3264	my $bug_warning = 0;
		3265
		3266	our @WAIT_FOR_TICK;
		3267	our @WAIT_FOR_TICK_BEGIN;
		3268
		3269	sub wait_for_tick {
		3270	return unless $TICK_WATCHER->is_active;
		3271	return if $Coro::current == $Coro::main;
		3272
		3273	my $signal = new Coro::Signal;
		3274	push @WAIT_FOR_TICK, $signal;
		3275	$signal->wait;
		3276	}
		3277
		3278	sub wait_for_tick_begin {
		3279	return unless $TICK_WATCHER->is_active;
		3280	return if $Coro::current == $Coro::main;
		3281
		3282	my $signal = new Coro::Signal;
		3283	push @WAIT_FOR_TICK_BEGIN, $signal;
		3284	$signal->wait;
		3285	}
		3286
		3287	my $min = 1e6;#d#
		3288	my $avg = 10;
		3289	$TICK_WATCHER = Event->timer (
		3290	reentrant => 0,
		3291	parked => 1,
		3292	prio => 0,
		3293	at => $NEXT_TICK || $TICK,
		3294	data => WF_AUTOCANCEL,
		3295	cb => sub {
		3296	if ($Coro::current != $Coro::main) {
		3297	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3298	unless ++$bug_warning > 10;
		3299	return;
		3300	}
		3301
		3302	$NOW = $tick_start = Event::time;
		3303
		3304	cf::server_tick; # one server iteration
		3305
		3306	0 && sync_job {#d#
		3307	for(1..10) {
		3308	my $t = Event::time;
		3309	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3310	or die;
		3311
		3312	$map->width (50);
		3313	$map->height (50);
		3314	$map->alloc;
		3315	$map->_load_objects ("/tmp/x.map", 1);
		3316	my $t = Event::time - $t;
		3317
		3318	#next unless $t < 0.0013;#d#
		3319	if ($t < $min) {
		3320	$min = $t;
		3321	}
		3322	$avg = $avg * 0.99 + $t * 0.01;
		3323	}
		3324	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3325	exit 0;
		3326	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1261	};	3327	};
1262	}
1263	};
1264		3328
1265	unshift @INC, $LIBDIR;	3329	$RUNTIME += $TICK;
1266
1267	$TICK_WATCHER = Event->timer (
1268	prio => 0,
1269	at => $NEXT_TICK || 1,
1270	data => WF_AUTOCANCEL,
1271	cb => sub {
1272	cf::server_tick; # one server iteration
1273
1274	my $NOW = Event::time;
1275	$NEXT_TICK += $TICK;	3330	$NEXT_TICK += $TICK;
		3331
		3332	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3333	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3334	Coro::async_pool {
		3335	write_runtime
		3336	or warn "ERROR: unable to write runtime file: $!";
		3337	};
		3338	}
		3339
		3340	# my $AFTER = Event::time;
		3341	# warn $AFTER - $NOW;#d#
		3342
		3343	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3344	$sig->send;
		3345	}
		3346	while (my $sig = shift @WAIT_FOR_TICK) {
		3347	$sig->send;
		3348	}
		3349
		3350	$NOW = Event::time;
1276		3351
1277	# if we are delayed by four ticks or more, skip them all	3352	# if we are delayed by four ticks or more, skip them all
1278	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	3353	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1279		3354
1280	$TICK_WATCHER->at ($NEXT_TICK);	3355	$TICK_WATCHER->at ($NEXT_TICK);
1281	$TICK_WATCHER->start;	3356	$TICK_WATCHER->start;
		3357
		3358	$LOAD = ($NOW - $tick_start) / $TICK;
		3359	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3360
		3361	_post_tick;
		3362
		3363
1282	},	3364	},
1283	);	3365	);
1284		3366
		3367	{
		3368	BDB::max_poll_time $TICK * 0.1;
		3369	$BDB_POLL_WATCHER = Event->io (
		3370	reentrant => 0,
		3371	fd => BDB::poll_fileno,
		3372	poll => 'r',
		3373	prio => 0,
		3374	data => WF_AUTOCANCEL,
		3375	cb => \&BDB::poll_cb,
		3376	);
		3377	BDB::min_parallel 8;
		3378
		3379	BDB::set_sync_prepare {
		3380	my $status;
		3381	my $current = $Coro::current;
		3382	(
		3383	sub {
		3384	$status = $!;
		3385	$current->ready; undef $current;
		3386	},
		3387	sub {
		3388	Coro::schedule while defined $current;
		3389	$! = $status;
		3390	},
		3391	)
		3392	};
		3393
		3394	unless ($DB_ENV) {
		3395	$DB_ENV = BDB::db_env_create;
		3396
		3397	cf::sync_job {
		3398	eval {
		3399	BDB::db_env_open
		3400	$DB_ENV,
		3401	$BDBDIR,
		3402	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3403	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3404	0666;
		3405
		3406	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3407
		3408	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3409	$DB_ENV->set_lk_detect;
		3410	};
		3411
		3412	cf::cleanup "db_env_open(db): $@" if $@;
		3413	};
		3414	}
		3415	}
		3416
		3417	{
		3418	IO::AIO::min_parallel 8;
		3419
		3420	undef $Coro::AIO::WATCHER;
1285	IO::AIO::max_poll_time $TICK * 0.2;	3421	IO::AIO::max_poll_time $TICK * 0.1;
1286		3422	$AIO_POLL_WATCHER = Event->io (
1287	Event->io (fd => IO::AIO::poll_fileno,	3423	reentrant => 0,
1288	poll => 'r',
1289	prio => 5,
1290	data => WF_AUTOCANCEL,	3424	data => WF_AUTOCANCEL,
		3425	fd => IO::AIO::poll_fileno,
		3426	poll => 'r',
		3427	prio => 6,
1291	cb => \&IO::AIO::poll_cb);	3428	cb => \&IO::AIO::poll_cb,
		3429	);
		3430	}
		3431
		3432	my $_log_backtrace;
		3433
		3434	sub _log_backtrace {
		3435	my ($msg, @addr) = @_;
		3436
		3437	$msg =~ s/\n//;
		3438
		3439	# limit the # of concurrent backtraces
		3440	if ($_log_backtrace < 2) {
		3441	++$_log_backtrace;
		3442	async {
		3443	my @bt = fork_call {
		3444	@addr = map { sprintf "%x", $_ } @addr;
		3445	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3446	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3447	or die "addr2line: $!";
		3448
		3449	my @funcs;
		3450	my @res = <$fh>;
		3451	chomp for @res;
		3452	while (@res) {
		3453	my ($func, $line) = splice @res, 0, 2, ();
		3454	push @funcs, "[$func] $line";
		3455	}
		3456
		3457	@funcs
		3458	};
		3459
		3460	LOG llevInfo, "[ABT] $msg\n";
		3461	LOG llevInfo, "[ABT] $_\n" for @bt;
		3462	--$_log_backtrace;
		3463	};
		3464	} else {
		3465	LOG llevInfo, "[ABT] $msg\n";
		3466	LOG llevInfo, "[ABT] [suppressed]\n";
		3467	}
		3468	}
		3469
		3470	# load additional modules
		3471	use cf::pod;
		3472
		3473	END { cf::emergency_save }
1292		3474
1293	1	3475	1
1294		3476

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