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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.88 by root, Fri Dec 15 19:29:18 2006 UTC vs.
Revision 1.616 by root, Mon Aug 10 03:05:30 2015 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
		24
		25	use common::sense;
2		26
3	use Symbol;	27	use Symbol;
4	use List::Util;	28	use List::Util;
5	use Storable;	29	use Socket;
		30	use EV;
6	use Opcode;	31	use Opcode;
7	use Safe;	32	use Safe;
8	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
9		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
		41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
		45	use Coro::AnyEvent;
		46	use Coro::Timer;
		47	use Coro::Signal;
		48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
		51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
		59	use Data::Dumper;
		60	use Fcntl;
		61	use YAML::XS ();
10	use IO::AIO ();	62	use IO::AIO ();
11	use YAML::Syck ();	63	use Compress::LZF;
12	use Time::HiRes;	64	use Digest::MD5 ();
13	use Event;
14	$Event::Eval = 1; # no idea why this is required, but it is
15		65
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	AnyEvent::detect;
17	$YAML::Syck::ImplicitUnicode = 1;
18		67
19	use strict;	68	# configure various modules to our taste
		69	#
		70	$Storable::canonical = 1; # reduce rsync transfers
		71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		78
		79	# strictly for debugging
		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
20		81
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		83
		84	our @ORIG_INC;
22		85
23	our %COMMAND = ();	86	our %COMMAND = ();
24	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
		88
		89	our @EXTS = (); # list of extension package names
25	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
		94	our %EXT_CORO = (); # coroutines bound to extensions
		95	our %EXT_MAP = (); # pluggable maps
26		96
27	_init_vars;	97	our $RELOAD; # number of reloads so far, non-zero while in reload
28
29	our @EVENT;	98	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
31		101
32	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
33	our $TICK_WATCHER;	103
		104	our $DATADIR = datadir;
		105	our $LIBDIR = "$DATADIR/ext";
		106	our $PODDIR = "$DATADIR/pod";
		107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
		109	our $LOCALDIR = localdir;
		110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		113	our $RANDOMDIR = "$LOCALDIR/random";
		114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
		125
		126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
34	our $NEXT_TICK;	128	our $NEXT_TICK;
		129	our $USE_FSYNC = 1; # use fsync to write maps - default on
		130
		131	our $BDB_DEADLOCK_WATCHER;
		132	our $BDB_CHECKPOINT_WATCHER;
		133	our $BDB_TRICKLE_WATCHER;
		134	our $DB_ENV;
		135
		136	our @EXTRA_MODULES = qw(pod match mapscript incloader);
35		137
36	our %CFG;	138	our %CFG;
		139	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
37		140
38	our $UPTIME; $UPTIME ||= time;	141	our $UPTIME; $UPTIME ||= time;
		142	our $RUNTIME = 0;
		143	our $SERVER_TICK = 0;
		144	our $NOW;
		145
		146	our (%PLAYER, %PLAYER_LOADING); # all users
		147	our (%MAP, %MAP_LOADING ); # all maps
		148	our $LINK_MAP; # the special {link} map, which is always available
		149
		150	# used to convert map paths into valid unix filenames by replacing / by ∕
		151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		152
		153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		154	our $LOADAVG; # same thing, but with alpha-smoothing
		155	our $JITTER; # average jitter
		156	our $TICK_START; # for load detecting purposes
		157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
		166	binmode STDOUT;
		167	binmode STDERR;
		168
		169	# read virtual server time, if available
		170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
		171	open my $fh, "<", $RUNTIMEFILE
		172	or die "unable to read $RUNTIMEFILE file: $!";
		173	$RUNTIME = <$fh> + 0.;
		174	}
		175
		176	eval "sub TICK() { $TICK } 1" or die;
		177
		178	mkdir $_
		179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		180
		181	our $EMERGENCY_POSITION;
		182
		183	sub cf::map::normalise;
		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
39		188
40	#############################################################################	189	#############################################################################
41		190
		191	%REFLECT = ();
		192	for (@REFLECT) {
		193	my $reflect = JSON::XS::decode_json $_;
		194	$REFLECT{$reflect->{class}} = $reflect;
		195	}
		196
		197	# this is decidedly evil
		198	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		199
		200	#############################################################################
		201
42	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
43		203
44	=over 4	204	=over 4
45		205
46	=item $cf::UPTIME	206	=item $cf::UPTIME
47		207
48	The timestamp of the server start (so not actually an uptime).	208	The timestamp of the server start (so not actually an "uptime").
49		209
50	=item $cf::LIBDIR	210	=item $cf::SERVER_TICK
51		211
52	The perl library directory, where extensions and cf-specific modules can	212	An unsigned integer that starts at zero when the server is started and is
53	be found. It will be added to C<@INC> automatically.	213	incremented on every tick.
		214
		215	=item $cf::NOW
		216
		217	The (real) time of the last (current) server tick - updated before and
		218	after tick processing, so this is useful only as a rough "what time is it
		219	now" estimate.
54		220
55	=item $cf::TICK	221	=item $cf::TICK
56		222
57	The interval between server ticks, in seconds.	223	The interval between each server tick, in seconds.
		224
		225	=item $cf::RUNTIME
		226
		227	The time this server has run, starts at 0 and is increased by $cf::TICK on
		228	every server tick.
		229
		230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		233
		234	Various directories - "/etc", read-only install directory, perl-library
		235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		236	unique-items directory, player file directory, random maps directory and
		237	database environment.
		238
		239	=item $cf::LOADAVG
		240
		241	The current CPU load on the server (alpha-smoothed), as a value between 0
		242	(none) and 1 (overloaded), indicating how much time is spent on processing
		243	objects per tick. Healthy values are < 0.5.
		244
		245	=item $cf::LOAD
		246
		247	The raw value load value from the last tick.
58		248
59	=item %cf::CFG	249	=item %cf::CFG
60		250
61	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
62	from wherever your confdir points to.	252	from wherever your confdir points to.
63		253
		254	=item cf::wait_for_tick, cf::wait_for_tick_begin
		255
		256	These are functions that inhibit the current coroutine one tick.
		257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
		259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$cf::WAIT_FOR_TICK>).
		265
		266	=item $cf::WAIT_FOR_TICK
		267
		268	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		269	variable contains a L<Coro::Signal> that is broadcats after every server
		270	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		271	next server tick.
		272
		273	=cut
		274
		275	sub wait_for_tick();
		276	sub wait_for_tick_begin();
		277
		278	=item @cf::INVOKE_RESULTS
		279
		280	This array contains the results of the last C<invoke ()> call. When
		281	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		282	that call.
		283
		284	=item %cf::REFLECT
		285
		286	Contains, for each (C++) class name, a hash reference with information
		287	about object members (methods, scalars, arrays and flags) and other
		288	metadata, which is useful for introspection.
		289
64	=back	290	=back
65		291
66	=cut	292	=cut
67		293
68	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
69	*CORE::GLOBAL::warn = sub {	295	sub warn (@) { LOG llevWarn , join "", @_ }
		296	sub info (@) { LOG llevInfo , join "", @_ }
		297	sub debug(@) { LOG llevDebug, join "", @_ }
		298	sub trace(@) { LOG llevTrace, join "", @_ }
		299
		300	$Coro::State::WARNHOOK = sub {
70	my $msg = join "", @_;	301	my $msg = join "", @_;
		302
71	$msg .= "\n"	303	$msg .= "\n"
72	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
73		305
74	print STDERR "cfperl: $msg";	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
75	LOG llevError, "cfperl: $msg";
76	};
77	}
78		307
		308	LOG llevWarn, $msg;
		309	};
		310
		311	$Coro::State::DIEHOOK = sub {
		312	return unless $^S eq 0; # "eq", not "=="
		313
		314	error Carp::longmess $_[0];
		315
		316	if (in_main) {#d#
		317	error "DIEHOOK called in main context, Coro bug?\n";#d#
		318	return;#d#
		319	}#d#
		320
		321	# kill coroutine otherwise
		322	Coro::terminate
		323	};
		324
		325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		329	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		330	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
79	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	331	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
80		332
81	# we bless all objects into (empty) derived classes to force a method lookup	333	# we bless all objects into (empty) derived classes to force a method lookup
82	# within the Safe compartment.	334	# within the Safe compartment.
83	for my $pkg (qw(	335	for my $pkg (qw(
		336	cf::global cf::attachable
84	cf::object cf::object::player	337	cf::object cf::object::player
85	cf::client_socket cf::player	338	cf::client cf::player
86	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
87	cf::map cf::party cf::region	341	cf::party cf::region
88	)) {	342	)) {
89	no strict 'refs';
90	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
91	}	344	}
92		345
93	$Event::DIED = sub {	346	$EV::DIED = sub {
94	warn "error in event callback: @_";	347	warn "error in event callback: $@";
95	};	348	};
96		349
97	my %ext_pkg;	350	#############################################################################
98	my @exts;	351
99	my @hook;	352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
100		356
101	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
102		358
103	=over 4	359	=over 4
104		360
105	=cut	361	=item dumpval $ref
106		362
107	use JSON::Syck (); # TODO# replace by JSON::PC once working	363	=cut
108		364
		365	sub dumpval {
		366	eval {
		367	local $SIG{__DIE__};
		368	my $d;
		369	if (1) {
		370	$d = new Data::Dumper([$_[0]], ["*var"]);
		371	$d->Terse(1);
		372	$d->Indent(2);
		373	$d->Quotekeys(0);
		374	$d->Useqq(1);
		375	#$d->Bless(...);
		376	$d->Seen($_[1]) if @_ > 1;
		377	$d = $d->Dump();
		378	}
		379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		380	$d
		381	} || "[unable to dump $_[0]: '$@']";
		382	}
		383
		384	=item $scalar = cf::load_file $path
		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($path, $data, $sync) = @_;
		407
		408	my $lock = cf::lock_acquire ("replace_file:$path");
		409
		410	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		411	or return;
		412
		413	$data = $data->() if ref $data;
		414
		415	length $data == aio_write $fh, 0, (length $data), $data, 0
		416	or return;
		417
		418	!$sync
		419	or !aio_fsync $fh
		420	or return;
		421
		422	aio_close $fh
		423	and return;
		424
		425	aio_rename "$path~", $path
		426	and return;
		427
		428	if ($sync) {
		429	$path =~ s%/[^/]*$%%;
		430	aio_pathsync $path;
		431	}
		432
		433	1
		434	}
		435
109	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
110		437
111	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
112		439
113	=cut
114
115	sub from_json($) {
116	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
117	JSON::Syck::Load $_[0]
118	}
119
120	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
121		441
122	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
123		443
124	=cut	444	=cut
125		445
126	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
127	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
128	JSON::Syck::Dump $_[0]	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
		511	}
		512
		513	=item cf::lock_wait $string
		514
		515	Wait until the given lock is available. See cf::lock_acquire.
		516
		517	=item my $lock = cf::lock_acquire $string
		518
		519	Wait until the given lock is available and then acquires it and returns
		520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		521	for example when the coroutine gets canceled), the lock is automatically
		522	returned.
		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
		527	Lock names should begin with a unique identifier (for example, cf::map::find
		528	uses map_find and cf::map::load uses map_load).
		529
		530	=item $locked = cf::lock_active $string
		531
		532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
		537
		538	sub lock_wait($) {
		539	$LOCKS->wait ($_[0]);
		540	}
		541
		542	sub lock_acquire($) {
		543	$LOCKS->guard ($_[0])
		544	}
		545
		546	sub lock_active($) {
		547	$LOCKS->count ($_[0]) < 1
		548	}
		549
		550	sub freeze_mainloop {
		551	tick_inhibit_inc;
		552
		553	&Guard::guard (\&tick_inhibit_dec);
		554	}
		555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	Coro::cede;
		603
		604	my $avail = cf::till_tick;
		605
		606	for (0 .. $#SLOT_QUEUE) {
		607	if ($SLOT_QUEUE[$_][0] <= $avail) {
		608	$busy = 0;
		609	my $job = splice @SLOT_QUEUE, $_, 1, ();
		610	$job->[2]->send;
		611	goto next_job;
		612	} else {
		613	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		614	}
		615	}
		616
		617	if (@SLOT_QUEUE) {
		618	wait_for_tick;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
		639	}
		640
		641	=item cf::async { BLOCK }
		642
		643	Currently the same as Coro::async_pool, meaning you cannot use
		644	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		645	thing you are allowed to do is call C<prio> on it.
		646
		647	=cut
		648
		649	BEGIN { *async = \&Coro::async_pool }
		650
		651	=item cf::sync_job { BLOCK }
		652
		653	The design of Deliantra requires that the main coroutine ($Coro::main)
		654	is always able to handle events or runnable, as Deliantra is only
		655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
		657
		658	If it must be done, put the blocking parts into C<sync_job>. This will run
		659	the given BLOCK in another coroutine while waiting for the result. The
		660	server will be frozen during this time, so the block should either finish
		661	fast or be very important.
		662
		663	=cut
		664
		665	sub sync_job(&) {
		666	my ($job) = @_;
		667
		668	if (in_main) {
		669	my $time = AE::time;
		670
		671	# this is the main coro, too bad, we have to block
		672	# till the operation succeeds, freezing the server :/
		673
		674	#LOG llevError, Carp::longmess "sync job";#d#
		675
		676	my $freeze_guard = freeze_mainloop;
		677
		678	my $busy = 1;
		679	my @res;
		680
		681	(async {
		682	$Coro::current->desc ("sync job coro");
		683	@res = eval { $job->() };
		684	error $@ if $@;
		685	undef $busy;
		686	})->prio (Coro::PRIO_MAX);
		687
		688	while ($busy) {
		689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::run EV::RUN_ONESHOT;
		693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
		699
		700	wantarray ? @res : $res[0]
		701	} else {
		702	# we are in another coroutine, how wonderful, everything just works
		703
		704	$job->()
		705	}
		706	}
		707
		708	=item $coro = cf::async_ext { BLOCK }
		709
		710	Like async, but this coro is automatically being canceled when the
		711	extension calling this is being unloaded.
		712
		713	=cut
		714
		715	sub async_ext(&) {
		716	my $cb = shift;
		717
		718	my $coro = &Coro::async ($cb);
		719
		720	$coro->on_destroy (sub {
		721	delete $EXT_CORO{$coro+0};
		722	});
		723	$EXT_CORO{$coro+0} = $coro;
		724
		725	$coro
		726	}
		727
		728	=item fork_call { }, @args
		729
		730	Executes the given code block with the given arguments in a seperate
		731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
		734
		735	=cut
		736
		737	sub post_fork {
		738	reset_signals;
		739	}
		740
		741	sub fork_call(&@) {
		742	my ($cb, @args) = @_;
		743
		744	my @res = Coro::Util::fork_eval {
		745	cf::post_fork;
		746	&$cb
		747	} @args;
		748
		749	wantarray ? @res : $res[-1]
		750	}
		751
		752	sub objinfo {
		753	(
		754	"counter value" => cf::object::object_count,
		755	"objects created" => cf::object::create_count,
		756	"objects destroyed" => cf::object::destroy_count,
		757	"freelist size" => cf::object::free_count,
		758	"allocated objects" => cf::object::objects_size,
		759	"active objects" => cf::object::actives_size,
		760	)
		761	}
		762
		763	=item $coin = coin_from_name $name
		764
		765	=cut
		766
		767	our %coin_alias = (
		768	"silver" => "silvercoin",
		769	"silvercoin" => "silvercoin",
		770	"silvercoins" => "silvercoin",
		771	"gold" => "goldcoin",
		772	"goldcoin" => "goldcoin",
		773	"goldcoins" => "goldcoin",
		774	"platinum" => "platinacoin",
		775	"platinumcoin" => "platinacoin",
		776	"platinumcoins" => "platinacoin",
		777	"platina" => "platinacoin",
		778	"platinacoin" => "platinacoin",
		779	"platinacoins" => "platinacoin",
		780	"royalty" => "royalty",
		781	"royalties" => "royalty",
		782	);
		783
		784	sub coin_from_name($) {
		785	$coin_alias{$_[0]}
		786	? cf::arch::find $coin_alias{$_[0]}
		787	: undef
		788	}
		789
		790	=item $value = cf::db_get $family => $key
		791
		792	Returns a single value from the environment database.
		793
		794	=item cf::db_put $family => $key => $value
		795
		796	Stores the given C<$value> in the family. It can currently store binary
		797	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		798
		799	=item $db = cf::db_table "name"
		800
		801	Create and/or open a new database table. The string must not be "db" and must be unique
		802	within each server.
		803
		804	=cut
		805
		806	sub db_table($) {
		807	cf::error "db_get called from main context"
		808	if $Coro::current == $Coro::main;
		809
		810	my ($name) = @_;
		811	my $db = BDB::db_create $DB_ENV;
		812
		813	eval {
		814	$db->set_flags (BDB::CHKSUM);
		815
		816	utf8::encode $name;
		817	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		818	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		819	cf::cleanup "db_open(db): $!" if $!;
		820	};
		821	cf::cleanup "db_open(db): $@" if $@;
		822
		823	$db
		824	}
		825
		826	our $DB;
		827
		828	sub db_init {
		829	$DB ||= db_table "db";
		830	}
		831
		832	sub db_get($$) {
		833	my $key = "$_[0]/$_[1]";
		834
		835	cf::error "db_get called from main context"
		836	if $Coro::current == $Coro::main;
		837
		838	BDB::db_get $DB, undef, $key, my $data;
		839
		840	$! ? ()
		841	: $data
		842	}
		843
		844	sub db_put($$$) {
		845	BDB::dbreq_pri 4;
		846	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		847	}
		848
		849	=item cf::cache $id => [$paths...], $processversion => $process
		850
		851	Generic caching function that returns the value of the resource $id,
		852	caching and regenerating as required.
		853
		854	This function can block.
		855
		856	=cut
		857
		858	sub cache {
		859	my ($id, $src, $processversion, $process) = @_;
		860
		861	my $meta =
		862	join "\x00",
		863	$processversion,
		864	map {
		865	aio_stat $_
		866	and Carp::croak "$_: $!";
		867
		868	($_, (stat _)[7,9])
		869	} @$src;
		870
		871	my $dbmeta = db_get cache => "$id/meta";
		872	if ($dbmeta ne $meta) {
		873	# changed, we may need to process
		874
		875	my @data;
		876	my $md5;
		877
		878	for (0 .. $#$src) {
		879	$data[$_] = load_file $src->[$_];
		880	}
		881
		882	# if processing is expensive, check
		883	# checksum first
		884	if (1) {
		885	$md5 =
		886	join "\x00",
		887	$processversion,
		888	map {
		889	cf::cede_to_tick;
		890	($src->[$_], Digest::MD5::md5_hex $data[$_])
		891	} 0.. $#$src;
		892
		893
		894	my $dbmd5 = db_get cache => "$id/md5";
		895	if ($dbmd5 eq $md5) {
		896	db_put cache => "$id/meta", $meta;
		897
		898	return db_get cache => "$id/data";
		899	}
		900	}
		901
		902	my $t1 = EV::time;
		903	my $data = $process->(\@data);
		904	my $t2 = EV::time;
		905
		906	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		907
		908	db_put cache => "$id/data", $data;
		909	db_put cache => "$id/md5" , $md5;
		910	db_put cache => "$id/meta", $meta;
		911
		912	return $data;
		913	}
		914
		915	db_get cache => "$id/data"
		916	}
		917
		918	=item cf::datalog type => key => value, ...
		919
		920	Log a datalog packet of the given type with the given key-value pairs.
		921
		922	=cut
		923
		924	sub datalog($@) {
		925	my ($type, %kv) = @_;
		926	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
129	}	927	}
130		928
131	=back	929	=back
132		930
133	=cut	931	=cut
134		932
135	#############################################################################	933	#############################################################################
136		934
137	=head2 EVENTS AND OBJECT ATTACHMENTS	935	=head2 ATTACHABLE OBJECTS
		936
		937	Many objects in deliantra are so-called attachable objects. That means you can
		938	attach callbacks/event handlers (a collection of which is called an "attachment")
		939	to it. All such attachable objects support the following methods.
		940
		941	In the following description, CLASS can be any of C<global>, C<object>
		942	C<player>, C<client> or C<map> (i.e. the attachable objects in
		943	Deliantra).
138		944
139	=over 4	945	=over 4
140		946
141	=item $object->attach ($attachment, key => $value...)
142
143	=item $object->detach ($attachment)
144
145	Attach/detach a pre-registered attachment to an object.
146
147	=item $player->attach ($attachment, key => $value...)
148
149	=item $player->detach ($attachment)
150
151	Attach/detach a pre-registered attachment to a player.
152
153	=item $map->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
154		948
155	=item $map->detach ($attachment)	949	=item $attachable->detach ($attachment)
156		950
157	Attach/detach a pre-registered attachment to a map.	951	Attach/detach a pre-registered attachment to a specific object and give it
		952	the specified key/value pairs as arguments.
158		953
159	=item $bool = $object->attached ($name)	954	Example, attach a minesweeper attachment to the given object, making it a
		955	10x10 minesweeper game:
160		956
161	=item $bool = $player->attached ($name)	957	$obj->attach (minesweeper => width => 10, height => 10);
162		958
163	=item $bool = $map->attached ($name)	959	=item $bool = $attachable->attached ($name)
164		960
165	Checks wether the named attachment is currently attached to the object.	961	Checks wether the named attachment is currently attached to the object.
166		962
167	=item cf::attach_global ...	963	=item cf::CLASS->attach ...
168		964
169	Attach handlers for global events.	965	=item cf::CLASS->detach ...
170		966
171	This and all following C<attach_*>-functions expect any number of the	967	Define an anonymous attachment and attach it to all objects of the given
172	following handler/hook descriptions:	968	CLASS. See the next function for an explanation of its arguments.
		969
		970	You can attach to global events by using the C<cf::global> class.
		971
		972	Example, log all player logins:
		973
		974	cf::player->attach (
		975	on_login => sub {
		976	my ($pl) = @_;
		977	...
		978	},
		979	);
		980
		981	Example, attach to the jeweler skill:
		982
		983	cf::object->attach (
		984	type => cf::SKILL,
		985	subtype => cf::SK_JEWELER,
		986	on_use_skill => sub {
		987	my ($sk, $ob, $part, $dir, $msg) = @_;
		988	...
		989	},
		990	);
		991
		992	=item cf::CLASS::attachment $name, ...
		993
		994	Register an attachment by C<$name> through which attachable objects of the
		995	given CLASS can refer to this attachment.
		996
		997	Some classes such as deliantra maps and objects can specify attachments
		998	that are attached at load/instantiate time, thus the need for a name.
		999
		1000	These calls expect any number of the following handler/hook descriptions:
173		1001
174	=over 4	1002	=over 4
175		1003
176	=item prio => $number	1004	=item prio => $number
177		1005
…		…
179	by another C<prio> setting). Lower priority handlers get executed	1007	by another C<prio> setting). Lower priority handlers get executed
180	earlier. The default priority is C<0>, and many built-in handlers are	1008	earlier. The default priority is C<0>, and many built-in handlers are
181	registered at priority C<-1000>, so lower priorities should not be used	1009	registered at priority C<-1000>, so lower priorities should not be used
182	unless you know what you are doing.	1010	unless you know what you are doing.
183		1011
		1012	=item type => $type
		1013
		1014	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		1015	given type of objects only (the additional parameter C<subtype> can be
		1016	used to further limit to the given subtype).
		1017
184	=item on_I<event> => \&cb	1018	=item on_I<event> => \&cb
185		1019
186	Call the given code reference whenever the named event happens (event is	1020	Call the given code reference whenever the named event happens (event is
187	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	1021	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
188	handlers are recognised generally depends on the type of object these	1022	handlers are recognised generally depends on the type of object these
…		…
197	package and register them. Only handlers for eevents supported by the	1031	package and register them. Only handlers for eevents supported by the
198	object/class are recognised.	1032	object/class are recognised.
199		1033
200	=back	1034	=back
201		1035
202	=item cf::attach_to_type $object_type, $subtype, ...	1036	Example, define an attachment called "sockpuppet" that calls the given
		1037	event handler when a monster attacks:
203		1038
204	Attach handlers for a specific object type (e.g. TRANSPORT) and	1039	cf::object::attachment sockpuppet =>
205	subtype. If C<$subtype> is zero or undef, matches all objects of the given	1040	on_skill_attack => sub {
206	type.	1041	my ($self, $victim) = @_;
207		1042	...
208	=item cf::attach_to_objects ...
209
210	Attach handlers to all objects. Do not use this except for debugging or
211	very rare events, as handlers are (obviously) called for I<all> objects in
212	the game.
213
214	=item cf::attach_to_players ...
215
216	Attach handlers to all players.
217
218	=item cf::attach_to_maps ...
219
220	Attach handlers to all maps.
221
222	=item cf:register_attachment $name, ...
223
224	Register an attachment by name through which objects can refer to this
225	attachment.
226
227	=item cf:register_player_attachment $name, ...
228
229	Register an attachment by name through which players can refer to this
230	attachment.
231
232	=item cf:register_map_attachment $name, ...
233
234	Register an attachment by name through which maps can refer to this
235	attachment.
236
237	=cut
238
239	# the following variables are defined in .xs and must not be re-created
240	our @CB_GLOBAL = (); # registry for all global events
241	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
242	our @CB_PLAYER = ();
243	our @CB_TYPE = (); # registry for type (cf-object class) based events
244	our @CB_MAP = ();
245
246	my %attachment;
247
248	sub _attach_cb($\%$$$) {
249	my ($registry, $undo, $event, $prio, $cb) = @_;
250
251	use sort 'stable';
252
253	$cb = [$prio, $cb];
254
255	@{$registry->[$event]} = sort
256	{ $a->[0] cmp $b->[0] }
257	@{$registry->[$event] || []}, $cb;
258
259	push @{$undo->{cb}}, [$event, $cb];
260	}
261
262	# attach handles attaching event callbacks
263	# the only thing the caller has to do is pass the correct
264	# registry (== where the callback attaches to).
265	sub _attach(\@$@) {
266	my ($registry, $klass, @arg) = @_;
267
268	my $prio = 0;
269
270	my %undo = (
271	registry => $registry,
272	cb => [],
273	);
274
275	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
276
277	while (@arg) {
278	my $type = shift @arg;
279
280	if ($type eq "prio") {
281	$prio = shift @arg;
282
283	} elsif ($type eq "package") {
284	my $pkg = shift @arg;
285
286	while (my ($name, $id) = each %cb_id) {
287	if (my $cb = $pkg->can ($name)) {
288	_attach_cb $registry, %undo, $id, $prio, $cb;
289	}
290	}	1043	}
291
292	} elsif (exists $cb_id{$type}) {
293	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
294
295	} elsif (ref $type) {
296	warn "attaching objects not supported, ignoring.\n";
297
298	} else {
299	shift @arg;
300	warn "attach argument '$type' not supported, ignoring.\n";
301	}
302	}
303
304	\%undo
305	}
306
307	sub _attach_attachment {
308	my ($obj, $name, %arg) = @_;
309
310	return if exists $obj->{_attachment}{$name};
311
312	my $res;
313
314	if (my $attach = $attachment{$name}) {
315	my $registry = $obj->registry;
316
317	for (@$attach) {
318	my ($klass, @attach) = @$_;
319	$res = _attach @$registry, $klass, @attach;
320	}
321
322	$obj->{$name} = \%arg;
323	} else {
324	warn "object uses attachment '$name' that is not available, postponing.\n";
325	}
326
327	$obj->{_attachment}{$name} = undef;
328
329	$res->{attachment} = $name;
330	$res
331	}
332
333	*cf::object::attach =
334	*cf::player::attach =
335	*cf::map::attach = sub {
336	my ($obj, $name, %arg) = @_;
337
338	_attach_attachment $obj, $name, %arg;
339	};
340
341	# all those should be optimised
342	*cf::object::detach =
343	*cf::player::detach =
344	*cf::map::detach = sub {
345	my ($obj, $name) = @_;
346
347	delete $obj->{_attachment}{$name};
348	reattach ($obj);
349	};
350
351	*cf::object::attached =
352	*cf::player::attached =
353	*cf::map::attached = sub {
354	my ($obj, $name) = @_;
355
356	exists $obj->{_attachment}{$name}
357	};
358
359	sub attach_global {
360	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
361	}
362
363	sub attach_to_type {
364	my $type = shift;
365	my $subtype = shift;
366
367	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
368	}
369
370	sub attach_to_objects {
371	_attach @CB_OBJECT, KLASS_OBJECT, @_
372	}
373
374	sub attach_to_players {
375	_attach @CB_PLAYER, KLASS_PLAYER, @_
376	}
377
378	sub attach_to_maps {
379	_attach @CB_MAP, KLASS_MAP, @_
380	}
381
382	sub register_attachment {
383	my $name = shift;
384
385	$attachment{$name} = [[KLASS_OBJECT, @_]];
386	}
387
388	sub register_player_attachment {
389	my $name = shift;
390
391	$attachment{$name} = [[KLASS_PLAYER, @_]];
392	}
393
394	sub register_map_attachment {
395	my $name = shift;
396
397	$attachment{$name} = [[KLASS_MAP, @_]];
398	}
399
400	our $override;
401	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
402
403	sub override {
404	$override = 1;
405	@invoke_results = ();
406	}
407
408	sub do_invoke {
409	my $event = shift;
410	my $callbacks = shift;
411
412	@invoke_results = ();
413
414	local $override;
415
416	for (@$callbacks) {
417	eval { &{$_->[1]} };
418
419	if ($@) {
420	warn "$@";
421	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
422	override;
423	}
424
425	return 1 if $override;
426	}
427
428	0	1044	}
429	}
430		1045
431	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	1046	=item $attachable->valid
432
433	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
434
435	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
436
437	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
438
439	Generate a global/object/player/map-specific event with the given arguments.
440
441	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
442	removed in future versions), and there is no public API to access override
443	results (if you must, access C<@cf::invoke_results> directly).
444
445	=back
446
447	=cut
448
449	#############################################################################
450
451	=head2 METHODS VALID FOR ALL CORE OBJECTS
452
453	=over 4
454
455	=item $object->valid, $player->valid, $map->valid
456		1047
457	Just because you have a perl object does not mean that the corresponding	1048	Just because you have a perl object does not mean that the corresponding
458	C-level object still exists. If you try to access an object that has no	1049	C-level object still exists. If you try to access an object that has no
459	valid C counterpart anymore you get an exception at runtime. This method	1050	valid C counterpart anymore you get an exception at runtime. This method
460	can be used to test for existence of the C object part without causing an	1051	can be used to test for existence of the C object part without causing an
461	exception.	1052	exception.
462		1053
		1054	=cut
		1055
		1056	# the following variables are defined in .xs and must not be re-created
		1057	our @CB_GLOBAL = (); # registry for all global events
		1058	our @CB_ATTACHABLE = (); # registry for all attachables
		1059	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		1060	our @CB_PLAYER = ();
		1061	our @CB_CLIENT = ();
		1062	our @CB_TYPE = (); # registry for type (cf-object class) based events
		1063	our @CB_MAP = ();
		1064
		1065	my %attachment;
		1066
		1067	sub cf::attachable::thawer_merge {
		1068	# simply override everything except _meta
		1069	local $_[0]{_meta};
		1070	%{$_[0]} = %{$_[1]};
		1071	}
		1072
		1073	sub _attach_cb($$$$) {
		1074	my ($registry, $event, $prio, $cb) = @_;
		1075
		1076	use sort 'stable';
		1077
		1078	$cb = [$prio, $cb];
		1079
		1080	@{$registry->[$event]} = sort
		1081	{ $a->[0] cmp $b->[0] }
		1082	@{$registry->[$event] || []}, $cb;
		1083	}
		1084
		1085	# hack
		1086	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		1087
		1088	# attach handles attaching event callbacks
		1089	# the only thing the caller has to do is pass the correct
		1090	# registry (== where the callback attaches to).
		1091	sub _attach {
		1092	my ($registry, $klass, @arg) = @_;
		1093
		1094	my $object_type;
		1095	my $prio = 0;
		1096	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		1097
		1098	#TODO: get rid of this hack
		1099	if ($attachable_klass{$klass}) {
		1100	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		1101	}
		1102
		1103	while (@arg) {
		1104	my $type = shift @arg;
		1105
		1106	if ($type eq "prio") {
		1107	$prio = shift @arg;
		1108
		1109	} elsif ($type eq "type") {
		1110	$object_type = shift @arg;
		1111	$registry = $CB_TYPE[$object_type] ||= [];
		1112
		1113	} elsif ($type eq "subtype") {
		1114	defined $object_type or Carp::croak "subtype specified without type";
		1115	my $object_subtype = shift @arg;
		1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
		1117
		1118	} elsif ($type eq "package") {
		1119	my $pkg = shift @arg;
		1120
		1121	while (my ($name, $id) = each %cb_id) {
		1122	if (my $cb = $pkg->can ($name)) {
		1123	_attach_cb $registry, $id, $prio, $cb;
		1124	}
		1125	}
		1126
		1127	} elsif (exists $cb_id{$type}) {
		1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		1129
		1130	} elsif (ref $type) {
		1131	error "attaching objects not supported, ignoring.\n";
		1132
		1133	} else {
		1134	shift @arg;
		1135	error "attach argument '$type' not supported, ignoring.\n";
		1136	}
		1137	}
		1138	}
		1139
		1140	sub _object_attach {
		1141	my ($obj, $name, %arg) = @_;
		1142
		1143	return if exists $obj->{_attachment}{$name};
		1144
		1145	if (my $attach = $attachment{$name}) {
		1146	my $registry = $obj->registry;
		1147
		1148	for (@$attach) {
		1149	my ($klass, @attach) = @$_;
		1150	_attach $registry, $klass, @attach;
		1151	}
		1152
		1153	$obj->{$name} = \%arg;
		1154	} else {
		1155	info "object uses attachment '$name' which is not available, postponing.\n";
		1156	}
		1157
		1158	$obj->{_attachment}{$name} = undef;
		1159	}
		1160
		1161	sub cf::attachable::attach {
		1162	if (ref $_[0]) {
		1163	_object_attach @_;
		1164	} else {
		1165	_attach shift->_attach_registry, @_;
		1166	}
		1167	_recalc_want;
		1168	};
		1169
		1170	# all those should be optimised
		1171	sub cf::attachable::detach {
		1172	my ($obj, $name) = @_;
		1173
		1174	if (ref $obj) {
		1175	delete $obj->{_attachment}{$name};
		1176	reattach ($obj);
		1177	} else {
		1178	Carp::croak "cannot, currently, detach class attachments";
		1179	}
		1180	_recalc_want;
		1181	};
		1182
		1183	sub cf::attachable::attached {
		1184	my ($obj, $name) = @_;
		1185
		1186	exists $obj->{_attachment}{$name}
		1187	}
		1188
		1189	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		1190	eval "#line " . __LINE__ . " 'cf.pm'
		1191	sub cf::\L$klass\E::_attach_registry {
		1192	(\\\@CB_$klass, KLASS_$klass)
		1193	}
		1194
		1195	sub cf::\L$klass\E::attachment {
		1196	my \$name = shift;
		1197
		1198	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		1199	}
		1200	";
		1201	die if $@;
		1202	}
		1203
		1204	our $override;
		1205	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		1206
		1207	sub override {
		1208	$override = 1;
		1209	@INVOKE_RESULTS = (@_);
		1210	}
		1211
		1212	sub do_invoke {
		1213	my $event = shift;
		1214	my $callbacks = shift;
		1215
		1216	@INVOKE_RESULTS = ();
		1217
		1218	local $override;
		1219
		1220	for (@$callbacks) {
		1221	eval { &{$_->[1]} };
		1222
		1223	if ($@) {
		1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		1225	override;
		1226	}
		1227
		1228	return 1 if $override;
		1229	}
		1230
		1231	0
		1232	}
		1233
		1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
		1235
		1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		1237
		1238	Generate an object-specific event with the given arguments.
		1239
		1240	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		1241	removed in future versions), and there is no public API to access override
		1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
		1243
463	=back	1244	=back
464		1245
465	=cut	1246	=cut
466
467	*cf::object::valid =
468	*cf::player::valid =
469	*cf::map::valid = \&cf::_valid;
470		1247
471	#############################################################################	1248	#############################################################################
472	# object support	1249	# object support
473		1250
474	sub instantiate {	1251	sub _object_equal($$);
		1252	sub _object_equal($$) {
		1253	my ($a, $b) = @_;
		1254
		1255	return 0 unless (ref $a) eq (ref $b);
		1256
		1257	if ("HASH" eq ref $a) {
		1258	my @ka = keys %$a;
		1259	my @kb = keys %$b;
		1260
		1261	return 0 if @ka != @kb;
		1262
		1263	for (0 .. $#ka) {
		1264	return 0 unless $ka[$_] eq $kb[$_];
		1265	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1266	}
		1267
		1268	} elsif ("ARRAY" eq ref $a) {
		1269
		1270	return 0 if @$a != @$b;
		1271
		1272	for (0 .. $#$a) {
		1273	return 0 unless _object_equal $a->[$_], $b->[$_];
		1274	}
		1275
		1276	} elsif ($a ne $b) {
		1277	return 0;
		1278	}
		1279
		1280	1
		1281	}
		1282
		1283	our $SLOW_MERGES;#d#
		1284	sub _can_merge {
475	my ($obj, $data) = @_;	1285	my ($ob1, $ob2) = @_;
476		1286
477	$data = from_json $data;	1287	++$SLOW_MERGES;#d#
478		1288
479	for (@$data) {	1289	# we do the slow way here
480	my ($name, $args) = @$_;	1290	return _object_equal $ob1, $ob2
481
482	$obj->attach ($name, %{$args || {} });
483	}
484	}	1291	}
485		1292
486	# basically do the same as instantiate, without calling instantiate
487	sub reattach {	1293	sub reattach {
		1294	# basically do the same as instantiate, without calling instantiate
488	my ($obj) = @_;	1295	my ($obj) = @_;
		1296
		1297	# no longer needed after getting rid of delete_package?
		1298	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		1299
489	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
490		1301
491	@$registry = ();	1302	@$registry = ();
492		1303
493	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };	1304	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
494		1305
495	for my $name (keys %{ $obj->{_attachment} || {} }) {	1306	for my $name (keys %{ $obj->{_attachment} || {} }) {
496	if (my $attach = $attachment{$name}) {	1307	if (my $attach = $attachment{$name}) {
497	for (@$attach) {	1308	for (@$attach) {
498	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
499	_attach @$registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
500	}	1311	}
501	} else {	1312	} else {
502	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
503	}
504	}
505	}
506
507	sub object_freezer_save {
508	my ($filename, $rdata, $objs) = @_;
509
510	if (length $$rdata) {
511	warn sprintf "saving %s (%d,%d)\n",
512	$filename, length $$rdata, scalar @$objs;
513
514	if (open my $fh, ">:raw", "$filename~") {
515	chmod SAVE_MODE, $fh;
516	syswrite $fh, $$rdata;
517	close $fh;
518
519	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
520	chmod SAVE_MODE, $fh;
521	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
522	close $fh;
523	rename "$filename.pst~", "$filename.pst";
524	} else {
525	unlink "$filename.pst";
526	}	1314	}
527
528	rename "$filename~", $filename;
529	} else {
530	warn "FATAL: $filename~: $!\n";
531	}
532	} else {
533	unlink $filename;
534	unlink "$filename.pst";
535	}	1315	}
536	}	1316	}
537		1317
538	sub object_freezer_as_string {	1318	cf::attachable->attach (
539	my ($rdata, $objs) = @_;
540
541	use Data::Dumper;
542
543	$$rdata . Dumper $objs
544	}
545
546	sub object_thawer_load {
547	my ($filename) = @_;
548
549	local $/;
550
551	my $av;
552
553	#TODO: use sysread etc.
554	if (open my $data, "<:raw:perlio", $filename) {
555	$data = <$data>;
556	if (open my $pst, "<:raw:perlio", "$filename.pst") {
557	$av = eval { (Storable::thaw <$pst>)->{objs} };
558	}
559	return ($data, $av);
560	}
561
562	()
563	}
564
565	attach_to_objects
566	prio => -1000000,	1319	prio => -1000000,
		1320	on_instantiate => sub {
		1321	my ($obj, $data) = @_;
		1322
		1323	$data = decode_json $data;
		1324
		1325	for (@$data) {
		1326	my ($name, $args) = @$_;
		1327
		1328	$obj->attach ($name, %{$args || {} });
		1329	}
		1330	},
		1331	on_reattach => \&reattach,
567	on_clone => sub {	1332	on_clone => sub {
568	my ($src, $dst) = @_;	1333	my ($src, $dst) = @_;
569		1334
570	@{$dst->registry} = @{$src->registry};	1335	@{$dst->registry} = @{$src->registry};
571		1336
572	%$dst = %$src;	1337	%$dst = %$src;
573		1338
574	%{$dst->{_attachment}} = %{$src->{_attachment}}	1339	%{$dst->{_attachment}} = %{$src->{_attachment}}
575	if exists $src->{_attachment};	1340	if exists $src->{_attachment};
576	},	1341	},
577	;	1342	);
		1343
		1344	sub object_freezer_save {
		1345	my ($filename, $rdata, $objs) = @_;
		1346
		1347	sync_job {
		1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
		1350	trace sprintf "saving %s (%d,%d)\n",
		1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
		1353
		1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
		1355	aio_chmod $fh, SAVE_MODE;
		1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1357	if ($cf::USE_FSYNC) {
		1358	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1359	aio_fsync $fh;
		1360	}
		1361	aio_close $fh;
		1362
		1363	if (@$objs) {
		1364	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1365	aio_chmod $fh, SAVE_MODE;
		1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
		1367	aio_write $fh, 0, (length $data), $data, 0;
		1368	if ($cf::USE_FSYNC) {
		1369	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1370	aio_fsync $fh;
		1371	}
		1372	aio_close $fh;
		1373	aio_rename "$filename.pst~", "$filename.pst";
		1374	}
		1375	} else {
		1376	aio_unlink "$filename.pst";
		1377	}
		1378
		1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
		1383	} else {
		1384	error "unable to save objects: $filename~: $!\n";
		1385	}
		1386	} else {
		1387	aio_unlink $filename;
		1388	aio_unlink "$filename.pst";
		1389	}
		1390	};
		1391	}
		1392
		1393	sub object_freezer_as_string {
		1394	my ($rdata, $objs) = @_;
		1395
		1396	use Data::Dumper;
		1397
		1398	$$rdata . Dumper $objs
		1399	}
		1400
		1401	sub object_thawer_load {
		1402	my ($filename) = @_;
		1403
		1404	my ($data, $av);
		1405
		1406	(aio_load $filename, $data) >= 0
		1407	or return;
		1408
		1409	unless (aio_stat "$filename.pst") {
		1410	(aio_load "$filename.pst", $av) >= 0
		1411	or return;
		1412
		1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
		1415	}
		1416
		1417	utf8::decode (my $decname = $filename);
		1418	trace sprintf "loading %s (%d,%d)\n",
		1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
		1422	($data, $av)
		1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
578		1430
579	#############################################################################	1431	#############################################################################
580	# command handling &c	1432	# command handling &c
581		1433
582	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
583		1435
584	Register a callback for execution when the client sends the user command	1436	Register a callback for execution when the client sends the user command
585	$name.	1437	$name.
586		1438
587	=cut	1439	=cut
…		…
593	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
594		1446
595	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
596	}	1448	}
597		1449
598	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
599		1451
600	Register a callbackf ro execution when the client sends an extcmd packet.	1452	Register a callback for execution when the client sends an (synchronous)
		1453	extcmd packet. Ext commands will be processed in the order they are
		1454	received by the server, like other user commands. The first argument is
		1455	the logged-in player. Ext commands can only be processed after a player
		1456	has logged in successfully.
601		1457
602	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
603	called.
604		1459
605	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
606		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$reply> function.
		1464
		1465	=item cf::register_exticmd $name => \&callback($ns,@args)
		1466
		1467	Register a callback for execution when the client sends an (asynchronous)
		1468	exticmd packet. Exti commands are processed by the server as soon as they
		1469	are received, i.e. out of order w.r.t. other commands. The first argument
		1470	is a client socket. Exti commands can be received anytime, even before
		1471	log-in.
		1472
		1473	The values will be sent back to the client.
		1474
		1475	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1476
		1477	Same as C<cf::register_extcmd>, but instead of returning values, the
		1478	callback needs to clal the C<$reply> function.
		1479
		1480	=cut
		1481
607	sub register_extcmd {	1482	sub register_extcmd($$) {
608	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
609		1484
610	my $caller = caller;
611	#warn "registering extcmd '$name' to '$caller'";
612
613	$EXTCMD{$name} = [$cb, $caller];	1485	$EXTCMD{$name} = $cb;
614	}	1486	}
615		1487
616	attach_to_players	1488	sub register_async_extcmd($$) {
		1489	my ($name, $cb) = @_;
		1490
		1491	$EXTACMD{$name} = $cb;
		1492	}
		1493
		1494	sub register_exticmd($$) {
		1495	my ($name, $cb) = @_;
		1496
		1497	$EXTICMD{$name} = $cb;
		1498	}
		1499
		1500	sub register_async_exticmd($$) {
		1501	my ($name, $cb) = @_;
		1502
		1503	$EXTIACMD{$name} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
		1507
		1508	cf::player->attach (
617	on_command => sub {	1509	on_unknown_command => sub {
618	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
619		1511
620	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
621	or return;	1513	or return;
622		1514
…		…
627	cf::override;	1519	cf::override;
628	},	1520	},
629	on_extcmd => sub {	1521	on_extcmd => sub {
630	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
631		1523
632	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
633		1525
634	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
635	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
636	if (my %reply = $cb->[0]->($pl, $msg)) {	1530	$cb->(
637	$pl->ext_reply ($msg->{msgid}, %reply);	1531	$pl,
		1532	sub {
		1533	$pl->ext_msg ("reply-$reply", @_)
		1534	if $reply;
		1535	},
		1536	@payload
		1537	);
		1538	} else {
		1539	my @reply;
		1540
		1541	if (my $cb = $EXTCMD{$type}) {
		1542	@reply = $cb->($pl, @payload);
		1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
		1547	}
		1548
		1549	} else {
		1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		1551	}
		1552
		1553	cf::override;
		1554	},
		1555	);
		1556
		1557	# "readahead" all extensions
		1558	sub cache_extensions {
		1559	my $grp = IO::AIO::aio_group;
		1560
		1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
		1562	for (grep /\.ext$/, @{$_[0]}) {
		1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1564	}
		1565	};
		1566
		1567	$grp
		1568	}
		1569
		1570	sub _ext_cfg_reg($$$$) {
		1571	my ($rvar, $varname, $cfgname, $default) = @_;
		1572
		1573	$cfgname = lc $varname
		1574	unless length $cfgname;
		1575
		1576	$EXT_CFG{$cfgname} = [$rvar, $default];
		1577
		1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
		1579	}
		1580
		1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
		1589	for my $path (<$LIBDIR/*.ext>) {
		1590	next unless -r $path;
		1591
		1592	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1593	my $base = $1;
		1594	my $pkg = $1;
		1595	$pkg =~ s/[^[:word:]]/_/g;
		1596	$pkg = "ext::$pkg";
		1597
		1598	open my $fh, "<:utf8", $path
		1599	or die "$path: $!";
		1600
		1601	my $source = do { local $/; <$fh> };
		1602
		1603	my %ext = (
		1604	path => $path,
		1605	base => $base,
		1606	pkg => $pkg,
		1607	);
		1608
		1609	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1610	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1611
		1612	$ext{source} =
		1613	"package $pkg; use common::sense;\n"
		1614	. "#line 1 \"$path\"\n{\n"
		1615	. $source
		1616	. "\n};\n1";
		1617
		1618	$todo{$base} = \%ext;
		1619	}
		1620
		1621	my $pass = 0;
		1622	my %done;
		1623	while (%todo) {
		1624	my $progress;
		1625
		1626	++$pass;
		1627
		1628	ext:
		1629	while (my ($k, $v) = each %todo) {
		1630	for (split /,\s*/, $v->{meta}{depends}) {
		1631	next ext
		1632	unless exists $done{$_};
		1633	}
		1634
		1635	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1636
		1637	my $source = $v->{source};
		1638
		1639	# support "CONF varname :confname = default" pseudo-statements
		1640	$source =~ s{
		1641	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1642	}{
		1643	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1644	}gmxe;
		1645
		1646	my $active = eval $source;
		1647
		1648	if (length $@) {
		1649	error "$v->{path}: $@\n";
		1650
		1651	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1652	if exists $v->{meta}{mandatory};
		1653
		1654	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1655	delete $todo{$k};
		1656	} else {
		1657	$done{$k} = delete $todo{$k};
		1658	push @EXTS, $v->{pkg};
		1659	$progress = 1;
		1660
		1661	info "$v->{base}: extension inactive.\n"
		1662	unless $active;
638	}	1663	}
639	}	1664	}
640	} else {
641	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
642	}
643		1665
644	cf::override;	1666	unless ($progress) {
645	},	1667	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
646	;
647		1668
648	sub register {	1669	while (my ($k, $v) = each %todo) {
649	my ($base, $pkg) = @_;	1670	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1671	if exists $v->{meta}{mandatory};
		1672	}
650		1673
651	#TODO	1674	last;
652	}
653
654	sub load_extension {
655	my ($path) = @_;
656
657	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
658	my $base = $1;
659	my $pkg = $1;
660	$pkg =~ s/[^[:word:]]/_/g;
661	$pkg = "ext::$pkg";
662
663	warn "loading '$path' into '$pkg'\n";
664
665	open my $fh, "<:utf8", $path
666	or die "$path: $!";
667
668	my $source =
669	"package $pkg; use strict; use utf8;\n"
670	. "#line 1 \"$path\"\n{\n"
671	. (do { local $/; <$fh> })
672	. "\n};\n1";
673
674	eval $source
675	or die $@ ? "$path: $@\n"
676	: "extension disabled.\n";
677
678	push @exts, $pkg;
679	$ext_pkg{$base} = $pkg;
680
681	# no strict 'refs';
682	# @{"$pkg\::ISA"} = ext::;
683
684	register $base, $pkg;
685	}
686
687	sub unload_extension {
688	my ($pkg) = @_;
689
690	warn "removing extension $pkg\n";
691
692	# remove hooks
693	#TODO
694	# for my $idx (0 .. $#PLUGIN_EVENT) {
695	# delete $hook[$idx]{$pkg};
696	# }
697
698	# remove commands
699	for my $name (keys %COMMAND) {
700	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
701
702	if (@cb) {
703	$COMMAND{$name} = \@cb;
704	} else {
705	delete $COMMAND{$name};
706	}
707	}
708
709	# remove extcmds
710	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
711	delete $EXTCMD{$name};
712	}
713
714	if (my $cb = $pkg->can ("unload")) {
715	eval {
716	$cb->($pkg);
717	1	1675	}
718	} or warn "$pkg unloaded, but with errors: $@";	1676	}
719	}	1677	};
720
721	Symbol::delete_package $pkg;
722	}
723
724	sub load_extensions {
725	for my $ext (<$LIBDIR/*.ext>) {
726	next unless -r $ext;
727	eval {
728	load_extension $ext;
729	1
730	} or warn "$ext not loaded: $@";
731	}
732	}	1678	}
733		1679
734	#############################################################################	1680	#############################################################################
735	# load/save/clean perl data associated with a map
736		1681
737	*cf::mapsupport::on_clean = sub {	1682	=back
		1683
		1684	=head2 CORE EXTENSIONS
		1685
		1686	Functions and methods that extend core deliantra objects.
		1687
		1688	=cut
		1689
		1690	package cf::player;
		1691
		1692	use Coro::AIO;
		1693
		1694	=head3 cf::player
		1695
		1696	=over 4
		1697
		1698	=item cf::player::num_playing
		1699
		1700	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1701
		1702	=cut
		1703
		1704	sub num_playing {
		1705	scalar grep
		1706	$_->ob->map
		1707	&& !$_->hidden
		1708	&& !$_->ob->flag (cf::FLAG_WIZ),
		1709	cf::player::list
		1710	}
		1711
		1712	=item cf::player::find $login
		1713
		1714	Returns the given player object, loading it if necessary (might block).
		1715
		1716	=cut
		1717
		1718	sub playerdir($) {
		1719	"$PLAYERDIR/"
		1720	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1721	}
		1722
		1723	sub path($) {
		1724	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1725
		1726	(playerdir $login) . "/playerdata"
		1727	}
		1728
		1729	sub find_active($) {
		1730	$cf::PLAYER{$_[0]}
		1731	and $cf::PLAYER{$_[0]}->active
		1732	and $cf::PLAYER{$_[0]}
		1733	}
		1734
		1735	sub exists($) {
738	my ($map) = @_;	1736	my ($login) = @_;
739		1737
740	my $path = $map->tmpname;	1738	$cf::PLAYER{$login}
741	defined $path or return;	1739	or !aio_stat path $login
742
743	unlink "$path.pst";
744	};
745
746	attach_to_maps prio => -10000, package => cf::mapsupport::;
747
748	#############################################################################
749	# load/save perl data associated with player->ob objects
750
751	sub all_objects(@) {
752	@_, map all_objects ($_->inv), @_
753	}	1740	}
754		1741
755	# TODO: compatibility cruft, remove when no longer needed	1742	sub find($) {
756	attach_to_players	1743	return $cf::PLAYER{$_[0]} || do {
		1744	my $login = $_[0];
		1745
		1746	my $guard = cf::lock_acquire "user_find:$login";
		1747
		1748	$cf::PLAYER{$_[0]} || do {
		1749	# rename old playerfiles to new ones
		1750	#TODO: remove when no longer required
		1751	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1752	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1753	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1754	aio_unlink +(playerdir $login) . "/$login.pl";
		1755
		1756	my $f = new_from_file cf::object::thawer path $login
		1757	or return;
		1758
		1759	my $pl = cf::player::load_pl $f
		1760	or return;
		1761
		1762	local $cf::PLAYER_LOADING{$login} = $pl;
		1763	$f->resolve_delayed_derefs;
		1764	$cf::PLAYER{$login} = $pl
		1765	}
		1766	}
		1767	}
		1768
		1769	cf::player->attach (
757	on_load => sub {	1770	on_load => sub {
758	my ($pl, $path) = @_;	1771	my ($pl, $path) = @_;
759		1772
760	for my $o (all_objects $pl->ob) {	1773	# restore slots saved in save, below
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1774	my $slots = delete $pl->{_slots};
762	$o->set_ob_key_value ("_perl_data");
763		1775
764	%$o = %{ Storable::thaw pack "H*", $value };	1776	$pl->ob->current_weapon ($slots->[0]);
		1777	$pl->combat_ob ($slots->[1]);
		1778	$pl->ranged_ob ($slots->[2]);
		1779	},
		1780	);
		1781
		1782	sub save($) {
		1783	my ($pl) = @_;
		1784
		1785	return if $pl->{deny_save};
		1786
		1787	my $path = path $pl;
		1788	my $guard = cf::lock_acquire "user_save:$path";
		1789
		1790	return if $pl->{deny_save};
		1791
		1792	aio_mkdir playerdir $pl, 0770;
		1793	$pl->{last_save} = $cf::RUNTIME;
		1794
		1795	cf::get_slot 0.01;
		1796
		1797	# save slots, to be restored later
		1798	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1799
		1800	$pl->save_pl ($path);
		1801	cf::cede_to_tick;
		1802	}
		1803
		1804	sub new($) {
		1805	my ($login) = @_;
		1806
		1807	my $self = create;
		1808
		1809	$self->ob->name ($login);
		1810	$self->{deny_save} = 1;
		1811
		1812	$cf::PLAYER{$login} = $self;
		1813
		1814	$self
		1815	}
		1816
		1817	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1818
		1819	=cut
		1820
		1821	sub send_msg {
		1822	my $ns = shift->ns
		1823	or return;
		1824	$ns->send_msg (@_);
		1825	}
		1826
		1827	=item $pl->quit_character
		1828
		1829	Nukes the player without looking back. If logged in, the connection will
		1830	be destroyed. May block for a long time.
		1831
		1832	=cut
		1833
		1834	sub quit_character {
		1835	my ($pl) = @_;
		1836
		1837	my $name = $pl->ob->name;
		1838
		1839	$pl->{deny_save} = 1;
		1840	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1841
		1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
		1849	$pl->ns->destroy if $pl->ns;
		1850
		1851	my $path = playerdir $pl;
		1852	my $temp = "$path~$cf::RUNTIME~deleting~";
		1853	aio_rename $path, $temp;
		1854	delete $cf::PLAYER{$pl->ob->name};
		1855	$pl->destroy;
		1856
		1857	my $prefix = qr<^~\Q$name\E/>;
		1858
		1859	# nuke player maps
		1860	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1861
		1862	IO::AIO::aio_rmtree $temp;
		1863	}
		1864
		1865	=item $pl->kick
		1866
		1867	Kicks a player out of the game. This destroys the connection.
		1868
		1869	=cut
		1870
		1871	sub kick {
		1872	my ($pl, $kicker) = @_;
		1873
		1874	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1875	$pl->killer ("kicked");
		1876	$pl->ns->destroy;
		1877	}
		1878
		1879	=item cf::player::list_logins
		1880
		1881	Returns am arrayref of all valid playernames in the system, can take a
		1882	while and may block, so not sync_job-capable, ever.
		1883
		1884	=cut
		1885
		1886	sub list_logins {
		1887	my $dirs = aio_readdir $PLAYERDIR
		1888	or return [];
		1889
		1890	my @logins;
		1891
		1892	for my $login (@$dirs) {
		1893	my $path = path $login;
		1894
		1895	# a .pst is a dead give-away for a valid player
		1896	# if no pst file found, open and chekc for blocked users
		1897	if (aio_stat "$path.pst") {
		1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1899	aio_read $fh, 0, 512, my $buf, 0 or next;
		1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
		1902
		1903	utf8::decode $login;
		1904	push @logins, $login;
		1905	}
		1906
		1907	\@logins
		1908	}
		1909
		1910	=item $player->maps
		1911
		1912	=item cf::player::maps $login
		1913
		1914	Returns an arrayref of map paths that are private for this
		1915	player. May block.
		1916
		1917	=cut
		1918
		1919	sub maps($) {
		1920	my ($pl) = @_;
		1921
		1922	$pl = ref $pl ? $pl->ob->name : $pl;
		1923
		1924	my $files = aio_readdir playerdir $pl
		1925	or return;
		1926
		1927	my @paths;
		1928
		1929	for (@$files) {
		1930	utf8::decode $_;
		1931	next if /\.(?:pl|pst)$/;
		1932	next unless /^$PATH_SEP/o;
		1933
		1934	push @paths, cf::map::normalise "~$pl/$_";
		1935	}
		1936
		1937	\@paths
		1938	}
		1939
		1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1941
		1942	Expand deliantra pod fragments into protocol xml.
		1943
		1944	=item $player->ext_msg ($type, @msg)
		1945
		1946	Sends an ext event to the client.
		1947
		1948	=cut
		1949
		1950	sub ext_msg($$@) {
		1951	my ($self, $type, @msg) = @_;
		1952
		1953	$self->ns->ext_msg ($type, @msg);
		1954	}
		1955
		1956	=head3 cf::region
		1957
		1958	=over 4
		1959
		1960	=cut
		1961
		1962	package cf::region;
		1963
		1964	=item cf::region::find_by_path $path
		1965
		1966	Tries to decuce the likely region for a map knowing only its path.
		1967
		1968	=cut
		1969
		1970	sub find_by_path($) {
		1971	my ($path) = @_;
		1972
		1973	$path =~ s/^~[^\/]*//; # skip ~login
		1974
		1975	my ($match, $specificity);
		1976
		1977	for my $region (list) {
		1978	if ($region->{match} && $path =~ $region->{match}) {
		1979	($match, $specificity) = ($region, $region->specificity)
		1980	if $region->specificity > $specificity;
		1981	}
		1982	}
		1983
		1984	$match
		1985	}
		1986
		1987	=back
		1988
		1989	=head3 cf::map
		1990
		1991	=over 4
		1992
		1993	=cut
		1994
		1995	package cf::map;
		1996
		1997	use Fcntl;
		1998	use Coro::AIO;
		1999
		2000	use overload
		2001	'""' => \&as_string,
		2002	fallback => 1;
		2003
		2004	our $MAX_RESET = 3600;
		2005	our $DEFAULT_RESET = 3000;
		2006
		2007	sub generate_random_map {
		2008	my ($self, $rmp) = @_;
		2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
		2012	$self->_create_random_map ($rmp);
		2013	}
		2014
		2015	=item cf::map->register ($regex, $prio)
		2016
		2017	Register a handler for the map path matching the given regex at the
		2018	givne priority (higher is better, built-in handlers have priority 0, the
		2019	default).
		2020
		2021	=cut
		2022
		2023	sub register {
		2024	my (undef, $regex, $prio) = @_;
		2025	my $pkg = caller;
		2026
		2027	push @{"$pkg\::ISA"}, __PACKAGE__;
		2028
		2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2030	}
		2031
		2032	# also paths starting with '/'
		2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2034
		2035	sub thawer_merge {
		2036	my ($self, $merge) = @_;
		2037
		2038	# we have to keep some variables in memory intact
		2039	local $self->{path};
		2040	local $self->{load_path};
		2041
		2042	$self->SUPER::thawer_merge ($merge);
		2043	}
		2044
		2045	sub normalise {
		2046	my ($path, $base) = @_;
		2047
		2048	$path = "$path"; # make sure it's a string
		2049
		2050	$path =~ s/\.map$//;
		2051
		2052	# map plan:
		2053	#
		2054	# /! non-realised random map exit (special hack!)
		2055	# {... are special paths that are not being touched
		2056	# ?xxx/... are special absolute paths
		2057	# ?random/... random maps
		2058	# /... normal maps
		2059	# ~user/... per-player map of a specific user
		2060
		2061	$path =~ s/$PATH_SEP/\//go;
		2062
		2063	# treat it as relative path if it starts with
		2064	# something that looks reasonable
		2065	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2066	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2067
		2068	$base =~ s{[^/]+/?$}{};
		2069	$path = "$base/$path";
		2070	}
		2071
		2072	for ($path) {
		2073	redo if s{/\.?/}{/};
		2074	redo if s{/[^/]+/\.\./}{/};
		2075	}
		2076
		2077	$path
		2078	}
		2079
		2080	sub new_from_path {
		2081	my (undef, $path, $base) = @_;
		2082
		2083	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2084
		2085	$path = normalise $path, $base;
		2086
		2087	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2088	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2089	my $self = bless cf::map::new, $pkg;
		2090	$self->{path} = $path; $self->path ($path);
		2091	$self->init; # pass $1 etc.
		2092	return $self;
		2093	}
		2094	}
		2095
		2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2097	()
		2098	}
		2099
		2100	# may re-bless or do other evil things
		2101	sub init {
		2102	my ($self) = @_;
		2103
		2104	$self
		2105	}
		2106
		2107	sub as_string {
		2108	my ($self) = @_;
		2109
		2110	"$self->{path}"
		2111	}
		2112
		2113	# the displayed name, this is a one way mapping
		2114	sub visible_name {
		2115	&as_string
		2116	}
		2117
		2118	# the original (read-only) location
		2119	sub load_path {
		2120	my ($self) = @_;
		2121
		2122	"$MAPDIR/$self->{path}.map"
		2123	}
		2124
		2125	# the temporary/swap location
		2126	sub save_path {
		2127	my ($self) = @_;
		2128
		2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2130	"$TMPDIR/$path.map"
		2131	}
		2132
		2133	# the unique path, undef == no special unique path
		2134	sub uniq_path {
		2135	my ($self) = @_;
		2136
		2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2138	"$UNIQUEDIR/$path"
		2139	}
		2140
		2141	sub decay_objects {
		2142	my ($self) = @_;
		2143
		2144	return if $self->{deny_reset};
		2145
		2146	$self->do_decay_objects;
		2147	}
		2148
		2149	sub unlink_save {
		2150	my ($self) = @_;
		2151
		2152	utf8::encode (my $save = $self->save_path);
		2153	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2154	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2155	}
		2156
		2157	sub load_header_from($) {
		2158	my ($self, $path) = @_;
		2159
		2160	utf8::encode $path;
		2161	my $f = new_from_file cf::object::thawer $path
		2162	or return;
		2163
		2164	$self->_load_header ($f)
		2165	or return;
		2166
		2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
		2170	$self->{load_path} = $path;
		2171
		2172	1
		2173	}
		2174
		2175	# used to laod the header of an original map
		2176	sub load_header_orig {
		2177	my ($self) = @_;
		2178
		2179	$self->load_header_from ($self->load_path)
		2180	}
		2181
		2182	# used to laod the header of an instantiated map
		2183	sub load_header_temp {
		2184	my ($self) = @_;
		2185
		2186	$self->load_header_from ($self->save_path)
		2187	}
		2188
		2189	# called after loading the header from an instantiated map
		2190	sub prepare_temp {
		2191	my ($self) = @_;
		2192
		2193	$self->last_access ((delete $self->{last_access})
		2194	|| $cf::RUNTIME); #d#
		2195	# safety
		2196	$self->{instantiate_time} = $cf::RUNTIME
		2197	if $self->{instantiate_time} > $cf::RUNTIME;
		2198	}
		2199
		2200	# called after loading the header from an original map
		2201	sub prepare_orig {
		2202	my ($self) = @_;
		2203
		2204	$self->{load_original} = 1;
		2205	$self->{instantiate_time} = $cf::RUNTIME;
		2206	$self->last_access ($cf::RUNTIME);
		2207	$self->instantiate;
		2208	}
		2209
		2210	sub load_header {
		2211	my ($self) = @_;
		2212
		2213	if ($self->load_header_temp) {
		2214	$self->prepare_temp;
		2215	} else {
		2216	$self->load_header_orig
		2217	or return;
		2218	$self->prepare_orig;
		2219	}
		2220
		2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
		2223
		2224	$self->default_region (cf::region::find_by_path $self->{path})
		2225	unless $self->default_region;
		2226
		2227	1
		2228	}
		2229
		2230	sub find;
		2231	sub find {
		2232	my ($path, $origin) = @_;
		2233
		2234	cf::cede_to_tick;
		2235
		2236	$path = normalise $path, $origin;
		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2239	my $guard2 = cf::lock_acquire "map_find:$path";
		2240
		2241	$cf::MAP{$path} || do {
		2242	my $map = new_from_path cf::map $path
		2243	or return;
		2244
		2245	$map->{last_save} = $cf::RUNTIME;
		2246
		2247	$map->load_header
		2248	or return;
		2249
		2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2251	# doing this can freeze the server in a sync job, obviously
		2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
		2255	$map->reset;
		2256	return find $path;
		2257	}
		2258
		2259	$cf::MAP{$path} = $map
		2260	}
		2261	}
		2262
		2263	sub pre_load { }
		2264	#sub post_load { } # XS
		2265
		2266	sub load {
		2267	my ($self) = @_;
		2268
		2269	local $self->{deny_reset} = 1; # loading can take a long time
		2270
		2271	my $path = $self->{path};
		2272
		2273	{
		2274	my $guard = cf::lock_acquire "map_data:$path";
		2275
		2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
		2278
		2279	$self->alloc;
		2280
		2281	$self->pre_load;
		2282	cf::cede_to_tick;
		2283
		2284	if (exists $self->{load_path}) {
		2285	my $f = new_from_file cf::object::thawer $self->{load_path};
		2286	$f->skip_block;
		2287	$self->_load_objects ($f)
		2288	or return;
		2289
		2290	$self->post_load_original
		2291	if delete $self->{load_original};
		2292
		2293	if (my $uniq = $self->uniq_path) {
		2294	utf8::encode $uniq;
		2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
		2297	$self->clear_unique_items;
		2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
765	}	2302	}
		2303
		2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
766	}	2308	}
		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
		2313	# now do the right thing for maps
		2314	$self->link_multipart_objects;
		2315	$self->difficulty ($self->estimate_difficulty)
		2316	unless $self->difficulty;
		2317	cf::cede_to_tick;
		2318
		2319	unless ($self->{deny_activate}) {
		2320	$self->decay_objects;
		2321	$self->fix_auto_apply;
		2322	$self->update_buttons;
		2323	cf::cede_to_tick;
		2324	#$self->activate; # no longer activate maps automatically
		2325	}
		2326
		2327	$self->{last_save} = $cf::RUNTIME;
		2328	$self->last_access ($cf::RUNTIME);
767	},	2329	}
768	;
769		2330
770	#############################################################################	2331	$self->post_load;
771		2332
772	=head2 CORE EXTENSIONS	2333	1
		2334	}
773		2335
774	Functions and methods that extend core crossfire objects.	2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
		2339	sub customise_for {
		2340	my ($self, $ob) = @_;
		2341
		2342	return find "~" . $ob->name . "/" . $self->{path}
		2343	if $self->per_player;
		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
		2348	$self
		2349	}
		2350
		2351	sub find_sync {
		2352	my ($path, $origin) = @_;
		2353
		2354	# it's a bug to call this from the main context
		2355	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2356	if $Coro::current == $Coro::main;
		2357
		2358	find $path, $origin
		2359	}
		2360
		2361	sub do_load_sync {
		2362	my ($map) = @_;
		2363
		2364	# it's a bug to call this from the main context
		2365	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2366	if $Coro::current == $Coro::main;
		2367
		2368	$map->load;
		2369	}
		2370
		2371	our %MAP_PREFETCH;
		2372	our $MAP_PREFETCHER = undef;
		2373
		2374	sub find_async {
		2375	my ($path, $origin, $load) = @_;
		2376
		2377	$path = normalise $path, $origin;
		2378
		2379	if (my $map = $cf::MAP{$path}) {
		2380	return $map if !$load || $map->linkable;
		2381	}
		2382
		2383	$MAP_PREFETCH{$path} |= $load;
		2384
		2385	$MAP_PREFETCHER ||= cf::async {
		2386	$Coro::current->{desc} = "map prefetcher";
		2387
		2388	while (%MAP_PREFETCH) {
		2389	while (my ($k, $v) = each %MAP_PREFETCH) {
		2390	if (my $map = find $k) {
		2391	$map->load if $v;
		2392	}
		2393
		2394	delete $MAP_PREFETCH{$k};
		2395	}
		2396	}
		2397	undef $MAP_PREFETCHER;
		2398	};
		2399	$MAP_PREFETCHER->prio (6);
		2400
		2401	()
		2402	}
		2403
		2404	# common code, used by both ->save and ->swapout
		2405	sub _save {
		2406	my ($self) = @_;
		2407
		2408	$self->{last_save} = $cf::RUNTIME;
		2409
		2410	return unless $self->dirty;
		2411
		2412	my $save = $self->save_path; utf8::encode $save;
		2413	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2414
		2415	$self->{load_path} = $save;
		2416
		2417	return if $self->{deny_save};
		2418
		2419	local $self->{last_access} = $self->last_access;#d#
		2420
		2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
		2423	$_->contr->save for $self->players;
		2424	};
		2425
		2426	cf::get_slot 0.02;
		2427
		2428	if ($uniq) {
		2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2431	} else {
		2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2433	}
		2434	}
		2435
		2436	sub save {
		2437	my ($self) = @_;
		2438
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	$self->_save;
		2442	}
		2443
		2444	sub swap_out {
		2445	my ($self) = @_;
		2446
		2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
		2451	return if $self->players;
		2452
		2453	# first deactivate the map and "unlink" it from the core
		2454	$self->deactivate;
		2455	$_->clear_links_to ($self) for values %cf::MAP;
		2456	$self->state (cf::MAP_SWAPPED);
		2457
		2458	# then atomically save
		2459	$self->_save;
		2460
		2461	# then free the map
		2462	$self->clear;
		2463	}
		2464
		2465	sub reset_at {
		2466	my ($self) = @_;
		2467
		2468	# TODO: safety, remove and allow resettable per-player maps
		2469	return 1e99 if $self->{deny_reset};
		2470
		2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2473
		2474	$time + $to
		2475	}
		2476
		2477	sub should_reset {
		2478	my ($self) = @_;
		2479
		2480	$self->reset_at <= $cf::RUNTIME
		2481	}
		2482
		2483	sub reset {
		2484	my ($self) = @_;
		2485
		2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2487
		2488	return if $self->players;
		2489
		2490	cf::trace "resetting map ", $self->path, "\n";
		2491
		2492	$self->state (cf::MAP_SWAPPED);
		2493
		2494	# need to save uniques path
		2495	unless ($self->{deny_save}) {
		2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2497
		2498	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2499	if $uniq;
		2500	}
		2501
		2502	delete $cf::MAP{$self->path};
		2503
		2504	$self->deactivate;
		2505	$_->clear_links_to ($self) for values %cf::MAP;
		2506	$self->clear;
		2507
		2508	$self->unlink_save;
		2509	$self->destroy;
		2510	}
		2511
		2512	my $nuke_counter = "aaaa";
		2513
		2514	sub nuke {
		2515	my ($self) = @_;
		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
		2520	delete $cf::MAP{$self->path};
		2521
		2522	$self->unlink_save;
		2523
		2524	bless $self, "cf::map::wrap";
		2525	delete $self->{deny_reset};
		2526	$self->{deny_save} = 1;
		2527	$self->reset_timeout (1);
		2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2529
		2530	$cf::MAP{$self->path} = $self;
		2531	}
		2532
		2533	$self->reset; # polite request, might not happen
		2534	}
		2535
		2536	=item $maps = cf::map::tmp_maps
		2537
		2538	Returns an arrayref with all map paths of currently instantiated and saved
		2539	maps. May block.
		2540
		2541	=cut
		2542
		2543	sub tmp_maps() {
		2544	[
		2545	map {
		2546	utf8::decode $_;
		2547	/\.map$/
		2548	? normalise $_
		2549	: ()
		2550	} @{ aio_readdir $TMPDIR or [] }
		2551	]
		2552	}
		2553
		2554	=item $maps = cf::map::random_maps
		2555
		2556	Returns an arrayref with all map paths of currently instantiated and saved
		2557	random maps. May block.
		2558
		2559	=cut
		2560
		2561	sub random_maps() {
		2562	[
		2563	map {
		2564	utf8::decode $_;
		2565	/\.map$/
		2566	? normalise "?random/$_"
		2567	: ()
		2568	} @{ aio_readdir $RANDOMDIR or [] }
		2569	]
		2570	}
		2571
		2572	=item cf::map::unique_maps
		2573
		2574	Returns an arrayref of paths of all shared maps that have
		2575	instantiated unique items. May block.
		2576
		2577	=cut
		2578
		2579	sub unique_maps() {
		2580	[
		2581	map {
		2582	utf8::decode $_;
		2583	s/\.map$//; # TODO future compatibility hack
		2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2585	? ()
		2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
		2588	]
		2589	}
		2590
		2591	=item cf::map::static_maps
		2592
		2593	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2594	file in the shared directory excluding F</styles> and F</editor>). May
		2595	block.
		2596
		2597	=cut
		2598
		2599	sub static_maps() {
		2600	my @dirs = "";
		2601	my @maps;
		2602
		2603	while (@dirs) {
		2604	my $dir = shift @dirs;
		2605
		2606	next if $dir eq "/styles" || $dir eq "/editor";
		2607
		2608	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2609	or return;
		2610
		2611	for (@$files) {
		2612	s/\.map$// or next;
		2613	utf8::decode $_;
		2614	push @maps, "$dir/$_";
		2615	}
		2616
		2617	push @dirs, map "$dir/$_", @$dirs;
		2618	}
		2619
		2620	\@maps
		2621	}
		2622
		2623	=back
		2624
		2625	=head3 cf::object
		2626
		2627	=cut
		2628
		2629	package cf::object;
775		2630
776	=over 4	2631	=over 4
777		2632
778	=item cf::player::exists $login	2633	=item $ob->inv_recursive
779		2634
780	Returns true when the given account exists.	2635	Returns the inventory of the object I<and> their inventories, recursively,
		2636	but I<not> the object itself.
781		2637
782	=cut	2638	=cut
783		2639
784	sub cf::player::exists($) {	2640	sub inv_recursive_;
785	cf::player::find $_[0]	2641	sub inv_recursive_ {
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2642	map { $_, inv_recursive_ $_->inv } @_
787	}	2643	}
		2644
		2645	sub inv_recursive {
		2646	inv_recursive_ inv $_[0]
		2647	}
		2648
		2649	=item $ref = $ob->ref
		2650
		2651	Creates and returns a persistent reference to an object that can be stored as a string.
		2652
		2653	=item $ob = cf::object::deref ($refstring)
		2654
		2655	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2656	even if the object actually exists. May block.
		2657
		2658	=cut
		2659
		2660	sub deref {
		2661	my ($ref) = @_;
		2662
		2663	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2664	my ($uuid, $name) = ($1, $2);
		2665	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2666	or return;
		2667	$pl->ob->uuid eq $uuid
		2668	or return;
		2669
		2670	$pl->ob
		2671	} else {
		2672	warn "$ref: cannot resolve object reference\n";
		2673	undef
		2674	}
		2675	}
		2676
		2677	package cf;
		2678
		2679	=back
		2680
		2681	=head3 cf::object::player
		2682
		2683	=over 4
788		2684
789	=item $player_object->reply ($npc, $msg[, $flags])	2685	=item $player_object->reply ($npc, $msg[, $flags])
790		2686
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2687	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
792	can be C<undef>. Does the right thing when the player is currently in a	2688	can be C<undef>. Does the right thing when the player is currently in a
793	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
794		2690
795	=cut	2691	=cut
796		2692
		2693	our $SAY_CHANNEL = {
		2694	id => "say",
		2695	title => "Map",
		2696	reply => "say ",
		2697	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2698	};
		2699
		2700	our $CHAT_CHANNEL = {
		2701	id => "chat",
		2702	title => "Chat",
		2703	reply => "chat ",
		2704	tooltip => "Player chat and shouts, global to the server.",
		2705	};
		2706
797	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	2708	# with dialog boxes.
		2709	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	2711	my ($self, $npc, $msg, $flags) = @_;
801		2712
802	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
803		2714
804	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
805	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
806	} else {	2718	} else {
		2719	my $pl = $self->contr;
		2720
		2721	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2722	my $dialog = $pl->{npc_dialog};
		2723	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2724
		2725	} else {
807	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
809	}	2729	}
810	}	2730	}
811		2731
812	=item $player->ext_reply ($msgid, $msgtype, %msg)	2732	=item $object->send_msg ($channel, $msg, $color, [extra...])
813		2733
814	Sends an ext reply to the player.
815
816	=cut	2734	=cut
817		2735
818	sub cf::player::ext_reply($$$%) {	2736	sub cf::object::send_msg {
819	my ($self, $id, %msg) = @_;	2737	my $pl = shift->contr
820		2738	or return;
821	$msg{msgid} = $id;	2739	$pl->send_msg (@_);
822
823	$self->send ("ext " . to_json \%msg);
824	}	2740	}
825		2741
826	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
827		2743
828	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
829	(e.g. "command_wizcast").	2745	(e.g. "command_wizcast").
830		2746
		2747	This is implemented by checking a config setting of C<may_access> where
		2748	C<access> is replaced by the access string. The following alternatives are
		2749	possible (and are tested in order):
		2750
		2751	=over 4
		2752
		2753	=item * Player is DM
		2754
		2755	The request will succeed.
		2756
		2757	=item * may_access is an array reference
		2758
		2759	If either the player nickname or UUID is in the array, the request will
		2760	succeed, otherwise it will fail.
		2761
		2762	=item * may_access is a true value
		2763
		2764	The request will succeed.
		2765
		2766	=item * may_access is missing or false
		2767
		2768	The request will fail.
		2769
		2770	=back
		2771
831	=cut	2772	=cut
832		2773
833	sub cf::object::player::may {	2774	sub cf::object::player::may {
834	my ($self, $access) = @_;	2775	my ($self, $access) = @_;
835		2776
836	$self->flag (cf::FLAG_WIZ) ||	2777	$self->flag (cf::FLAG_WIZ) ||
837	(ref $cf::CFG{"may_$access"}	2778	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2779	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	2780	: $cf::CFG{"may_$access"})
840	}	2781	}
841		2782
842	=cut	2783	=item $player_object->enter_link
843		2784
844	#############################################################################	2785	Freezes the player and moves him/her to a special map (C<{link}>).
		2786
		2787	The player should be reasonably safe there for short amounts of time (e.g.
		2788	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2789	though, as the player cannot control the character while it is on the link
		2790	map.
		2791
		2792	This method will never block, which is the whole reaosn for it's
		2793	existance: you can I<always> put a player onto the link map, which is the
		2794	only place to put objects that is guaranteed to exist.
		2795
		2796	A typical usage pattern is to call C<enter_link> synchronously from the
		2797	server, then start a new thread, do your blocking stuff there and then
		2798	call C<leave_link> from that thread.
		2799
		2800	=item $player_object->leave_link ($map, $x, $y)
		2801
		2802	Moves the player out of the special C<{link}> map onto the specified
		2803	map. If the map is not valid (or omitted), the player will be moved back
		2804	to the location he/she was before the call to C<enter_link>, or, if that
		2805	fails, to the emergency map position.
		2806
		2807	Might block.
		2808
		2809	=cut
		2810
		2811	sub link_map {
		2812	unless ($LINK_MAP) {
		2813	$LINK_MAP = cf::map::find "{link}"
		2814	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2815	$LINK_MAP->load;
		2816	}
		2817
		2818	$LINK_MAP
		2819	}
		2820
		2821	sub cf::object::player::enter_link {
		2822	my ($self) = @_;
		2823
		2824	$self->deactivate_recursive;
		2825
		2826	++$self->{_link_recursion};
		2827
		2828	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2829
		2830	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2831	if $self->map && $self->map->{path} ne "{link}";
		2832
		2833	$self->enter_map ($LINK_MAP || link_map, 3, 3);
		2834	}
		2835
		2836	sub cf::object::player::leave_link {
		2837	my ($self, $map, $x, $y) = @_;
		2838
		2839	return unless $self->contr->active;
		2840
		2841	my $link_pos = delete $self->{_link_pos};
		2842
		2843	unless ($map) {
		2844	# restore original map position
		2845	($map, $x, $y) = @{ $link_pos || [] };
		2846	$map = cf::map::find $map;
		2847
		2848	unless ($map) {
		2849	($map, $x, $y) = @$EMERGENCY_POSITION;
		2850	$map = cf::map::find $map
		2851	or die "FATAL: cannot load emergency map\n";
		2852	}
		2853	}
		2854
		2855	($x, $y) = (-1, -1)
		2856	unless (defined $x) && (defined $y);
		2857
		2858	# use -1 or undef as default coordinates, not 0, 0
		2859	($x, $y) = ($map->enter_x, $map->enter_y)
		2860	if $x <= 0 && $y <= 0;
		2861
		2862	$map->load;
		2863
		2864	return unless $self->contr->active;
		2865
		2866	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2867	if ($self->enter_map ($map, $x, $y)) {
		2868	# entering was successful
		2869	delete $self->{_link_recursion};
		2870	# only activate afterwards, to support waiting in hooks
		2871	$self->activate_recursive;
		2872	}
		2873
		2874	}
		2875
		2876	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
		2877
		2878	Moves the player to the given map-path and coordinates by first freezing
		2879	her, loading and preparing them map, calling the provided $check callback
		2880	that has to return the map if sucecssful, and then unfreezes the player on
		2881	the new (success) or old (failed) map position. In either case, $done will
		2882	be called at the end of this process.
		2883
		2884	Note that $check will be called with a potentially non-loaded map, so if
		2885	it needs a loaded map it has to call C<< ->load >>.
		2886
		2887	=cut
		2888
		2889	our $GOTOGEN;
		2890
		2891	sub cf::object::player::goto {
		2892	my ($self, $path, $x, $y, $check, $done) = @_;
		2893
		2894	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2895	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2896	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2897	($path, $x, $y) = @$EMERGENCY_POSITION;
		2898	}
		2899
		2900	# do generation counting so two concurrent goto's will be executed in-order
		2901	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2902
		2903	$self->enter_link;
		2904
		2905	(async {
		2906	$Coro::current->{desc} = "player::goto $path $x $y";
		2907
		2908	# *tag paths override both path and x|y
		2909	if ($path =~ /^\*(.*)$/) {
		2910	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2911	my $ob = $obs[rand @obs];
		2912
		2913	# see if we actually can go there
		2914	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2915	$ob = $obs[rand @obs];
		2916	} else {
		2917	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2918	}
		2919	# else put us there anyways for now #d#
		2920
		2921	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2922	} else {
		2923	($path, $x, $y) = (undef, undef, undef);
		2924	}
		2925	}
		2926
		2927	my $map = eval {
		2928	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2929
		2930	if ($map) {
		2931	$map = $map->customise_for ($self);
		2932	$map = $check->($map, $x, $y, $self) if $check && $map;
		2933	} else {
		2934	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2935	}
		2936
		2937	$map
		2938	};
		2939
		2940	if ($@) {
		2941	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2942	LOG llevError | logBacktrace, Carp::longmess $@;
		2943	}
		2944
		2945	if ($gen == $self->{_goto_generation}) {
		2946	delete $self->{_goto_generation};
		2947	$self->leave_link ($map, $x, $y);
		2948	}
		2949
		2950	$done->($self) if $done;
		2951	})->prio (1);
		2952	}
		2953
		2954	=item $player_object->enter_exit ($exit_object)
		2955
		2956	=cut
		2957
		2958	sub parse_random_map_params {
		2959	my ($spec) = @_;
		2960
		2961	my $rmp = { # defaults
		2962	xsize => (cf::rndm 15, 40),
		2963	ysize => (cf::rndm 15, 40),
		2964	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2965	#layout => string,
		2966	};
		2967
		2968	for (split /\n/, $spec) {
		2969	my ($k, $v) = split /\s+/, $_, 2;
		2970
		2971	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2972	}
		2973
		2974	$rmp
		2975	}
		2976
		2977	sub prepare_random_map {
		2978	my ($exit) = @_;
		2979
		2980	# all this does is basically replace the /! path by
		2981	# a new random map path (?random/...) with a seed
		2982	# that depends on the exit object
		2983
		2984	my $rmp = parse_random_map_params $exit->msg;
		2985
		2986	if ($exit->map) {
		2987	$rmp->{region} = $exit->region->name;
		2988	$rmp->{origin_map} = $exit->map->path;
		2989	$rmp->{origin_x} = $exit->x;
		2990	$rmp->{origin_y} = $exit->y;
		2991
		2992	$exit->map->touch;
		2993	}
		2994
		2995	$rmp->{random_seed} ||= $exit->random_seed;
		2996
		2997	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2998	my $md5 = Digest::MD5::md5_hex $data;
		2999	my $meta = "$RANDOMDIR/$md5.meta";
		3000
		3001	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		3002	aio_write $fh, 0, (length $data), $data, 0;
		3003	undef $fh;
		3004	aio_rename "$meta~", $meta;
		3005
		3006	my $slaying = "?random/$md5";
		3007
		3008	if ($exit->valid) {
		3009	$exit->slaying ("?random/$md5");
		3010	$exit->msg (undef);
		3011	}
		3012	}
		3013	}
		3014
		3015	sub cf::object::player::enter_exit {
		3016	my ($self, $exit) = @_;
		3017
		3018	return unless $self->type == cf::PLAYER;
		3019
		3020	$self->enter_link;
		3021
		3022	(async {
		3023	$Coro::current->{desc} = "enter_exit";
		3024
		3025	unless (eval {
		3026	$self->deactivate_recursive; # just to be sure
		3027
		3028	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3029	my $x = $exit->stats->hp;
		3030	my $y = $exit->stats->sp;
		3031
		3032	# special map handling
		3033	my $slaying = $exit->slaying;
		3034
		3035	# special map handling
		3036	if ($slaying eq "/!") {
		3037	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3038
		3039	prepare_random_map $exit
		3040	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3041
		3042	$map = $exit->slaying;
		3043
		3044	} elsif ($slaying eq '!up') {
		3045	$map = $exit->map->tile_path (cf::TILE_UP);
		3046	$x = $exit->x;
		3047	$y = $exit->y;
		3048
		3049	} elsif ($slaying eq '!down') {
		3050	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3051	$x = $exit->x;
		3052	$y = $exit->y;
		3053	}
		3054
		3055	$self->goto ($map, $x, $y);
		3056
		3057	# if exit is damned, update players death & WoR home-position
		3058	$self->contr->savebed ($map, $x, $y)
		3059	if $exit->flag (cf::FLAG_DAMNED);
		3060
		3061	1
		3062	}) {
		3063	$self->message ("Something went wrong deep within the deliantra server. "
		3064	. "I'll try to bring you back to the map you were before. "
		3065	. "Please report this to the dungeon master!",
		3066	cf::NDI_UNIQUE | cf::NDI_RED);
		3067
		3068	error "ERROR in enter_exit: $@";
		3069	$self->leave_link;
		3070	}
		3071	})->prio (1);
		3072	}
		3073
		3074	=head3 cf::client
		3075
		3076	=over 4
		3077
		3078	=item $client->send_big_packet ($pkt)
		3079
		3080	Like C<send_packet>, but tries to compress large packets, and fragments
		3081	them as required.
		3082
		3083	=cut
		3084
		3085	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3086
		3087	sub cf::client::send_big_packet {
		3088	my ($self, $pkt) = @_;
		3089
		3090	# try lzf for large packets
		3091	$pkt = "lzf " . Compress::LZF::compress $pkt
		3092	if 1024 <= length $pkt and $self->{can_lzf};
		3093
		3094	# split very large packets
		3095	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3096	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3097	$pkt = "frag";
		3098	}
		3099
		3100	$self->send_packet ($pkt);
		3101	}
		3102
		3103	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3104
		3105	Send a msg packet to the client, formatting the msg for the client if
		3106	necessary. C<$type> should be a string identifying the type of the
		3107	message, with C<log> being the default. If C<$color> is negative, suppress
		3108	the message unless the client supports the msg packet.
		3109
		3110	=cut
		3111
		3112	# non-persistent channels (usually the info channel)
		3113	our %CHANNEL = (
		3114	"c/motd" => {
		3115	id => "infobox",
		3116	title => "MOTD",
		3117	reply => undef,
		3118	tooltip => "The message of the day",
		3119	},
		3120	"c/identify" => {
		3121	id => "infobox",
		3122	title => "Identify",
		3123	reply => undef,
		3124	tooltip => "Items recently identified",
		3125	},
		3126	"c/examine" => {
		3127	id => "infobox",
		3128	title => "Examine",
		3129	reply => undef,
		3130	tooltip => "Signs and other items you examined",
		3131	},
		3132	"c/shopinfo" => {
		3133	id => "infobox",
		3134	title => "Shop Info",
		3135	reply => undef,
		3136	tooltip => "What your bargaining skill tells you about the shop",
		3137	},
		3138	"c/book" => {
		3139	id => "infobox",
		3140	title => "Book",
		3141	reply => undef,
		3142	tooltip => "The contents of a note or book",
		3143	},
		3144	"c/lookat" => {
		3145	id => "infobox",
		3146	title => "Look",
		3147	reply => undef,
		3148	tooltip => "What you saw there",
		3149	},
		3150	"c/who" => {
		3151	id => "infobox",
		3152	title => "Players",
		3153	reply => undef,
		3154	tooltip => "Shows players who are currently online",
		3155	},
		3156	"c/body" => {
		3157	id => "infobox",
		3158	title => "Body Parts",
		3159	reply => undef,
		3160	tooltip => "Shows which body parts you posess and are available",
		3161	},
		3162	"c/statistics" => {
		3163	id => "infobox",
		3164	title => "Statistics",
		3165	reply => undef,
		3166	tooltip => "Shows your primary statistics",
		3167	},
		3168	"c/skills" => {
		3169	id => "infobox",
		3170	title => "Skills",
		3171	reply => undef,
		3172	tooltip => "Shows your experience per skill and item power",
		3173	},
		3174	"c/shopitems" => {
		3175	id => "infobox",
		3176	title => "Shop Items",
		3177	reply => undef,
		3178	tooltip => "Shows the items currently for sale in this shop",
		3179	},
		3180	"c/resistances" => {
		3181	id => "infobox",
		3182	title => "Resistances",
		3183	reply => undef,
		3184	tooltip => "Shows your resistances",
		3185	},
		3186	"c/pets" => {
		3187	id => "infobox",
		3188	title => "Pets",
		3189	reply => undef,
		3190	tooltip => "Shows information abotu your pets/a specific pet",
		3191	},
		3192	"c/perceiveself" => {
		3193	id => "infobox",
		3194	title => "Perceive Self",
		3195	reply => undef,
		3196	tooltip => "You gained detailed knowledge about yourself",
		3197	},
		3198	"c/uptime" => {
		3199	id => "infobox",
		3200	title => "Uptime",
		3201	reply => undef,
		3202	tooltip => "How long the server has been running since last restart",
		3203	},
		3204	"c/mapinfo" => {
		3205	id => "infobox",
		3206	title => "Map Info",
		3207	reply => undef,
		3208	tooltip => "Information related to the maps",
		3209	},
		3210	"c/party" => {
		3211	id => "party",
		3212	title => "Party",
		3213	reply => "gsay ",
		3214	tooltip => "Messages and chat related to your party",
		3215	},
		3216	"c/death" => {
		3217	id => "death",
		3218	title => "Death",
		3219	reply => undef,
		3220	tooltip => "Reason for and more info about your most recent death",
		3221	},
		3222	"c/fatal" => {
		3223	id => "fatal",
		3224	title => "Fatal Error",
		3225	reply => undef,
		3226	tooltip => "Reason for the server disconnect",
		3227	},
		3228	"c/say" => $SAY_CHANNEL,
		3229	"c/chat" => $CHAT_CHANNEL,
		3230	);
		3231
		3232	sub cf::client::send_msg {
		3233	my ($self, $channel, $msg, $color, @extra) = @_;
		3234
		3235	$msg = $self->pl->expand_cfpod ($msg)
		3236	unless $color & cf::NDI_VERBATIM;
		3237
		3238	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3239
		3240	# check predefined channels, for the benefit of C
		3241	if ($CHANNEL{$channel}) {
		3242	$channel = $CHANNEL{$channel};
		3243
		3244	$self->ext_msg (channel_info => $channel);
		3245	$channel = $channel->{id};
		3246
		3247	} elsif (ref $channel) {
		3248	# send meta info to client, if not yet sent
		3249	unless (exists $self->{channel}{$channel->{id}}) {
		3250	$self->{channel}{$channel->{id}} = $channel;
		3251	$self->ext_msg (channel_info => $channel);
		3252	}
		3253
		3254	$channel = $channel->{id};
		3255	}
		3256
		3257	return unless @extra || length $msg;
		3258
		3259	# default colour, mask it out
		3260	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3261	if $color & cf::NDI_DEF;
		3262
		3263	my $pkt = "msg "
		3264	. $self->{json_coder}->encode (
		3265	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3266	);
		3267
		3268	$self->send_big_packet ($pkt);
		3269	}
		3270
		3271	=item $client->ext_msg ($type, @msg)
		3272
		3273	Sends an ext event to the client.
		3274
		3275	=cut
		3276
		3277	sub cf::client::ext_msg($$@) {
		3278	my ($self, $type, @msg) = @_;
		3279
		3280	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3281	}
		3282
		3283	=item $success = $client->query ($flags, "text", \&cb)
		3284
		3285	Queues a query to the client, calling the given callback with
		3286	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		3287	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		3288
		3289	Queries can fail, so check the return code. Or don't, as queries will
		3290	become reliable at some point in the future.
		3291
		3292	=cut
		3293
		3294	sub cf::client::query {
		3295	my ($self, $flags, $text, $cb) = @_;
		3296
		3297	return unless $self->state == ST_PLAYING
		3298	|| $self->state == ST_SETUP
		3299	|| $self->state == ST_CUSTOM;
		3300
		3301	$self->state (ST_CUSTOM);
		3302
		3303	utf8::encode $text;
		3304	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		3305
		3306	$self->send_packet ($self->{query_queue}[0][0])
		3307	if @{ $self->{query_queue} } == 1;
		3308
		3309	1
		3310	}
		3311
		3312	=item $client->update_command_faces
		3313
		3314	=cut
		3315
		3316	our %COMMAND_FACE;
		3317
		3318	sub cf::client::update_command_faces {
		3319	my ($self) = @_;
		3320
		3321	my @faces = grep $_,
		3322	$COMMAND_FACE{preferred},
		3323	$COMMAND_FACE{standard},
		3324	$COMMAND_FACE{skill},
		3325	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3326	$COMMAND_FACE{emote},
		3327	;
		3328
		3329	$self->send_face ($_)
		3330	for @faces;
		3331	$self->flush_fx;
		3332
		3333	$self->ext_msg (command_list => @faces);
		3334	}
		3335
		3336	=item cf::client::set_command_face $type, $commands
		3337
		3338	=cut
		3339
		3340	sub cf::client::set_command_face {
		3341	my ($type, $list) = @_;
		3342
		3343	my $idx = &cf::face::set ( #d# ugly forward reference
		3344	"command_list/$type" => cf::FT_RSRC,
		3345	JSON::XS->new->utf8->encode ([ sort @$list ])
		3346	);
		3347
		3348	$COMMAND_FACE{$type} = $idx;
		3349	}
		3350
		3351	cf::client->attach (
		3352	on_connect => sub {
		3353	my ($ns) = @_;
		3354
		3355	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3356	},
		3357	on_reply => sub {
		3358	my ($ns, $msg) = @_;
		3359
		3360	# this weird shuffling is so that direct followup queries
		3361	# get handled first
		3362	my $queue = delete $ns->{query_queue}
		3363	or return; # be conservative, not sure how that can happen, but we saw a crash here
		3364
		3365	(shift @$queue)->[1]->($msg);
		3366	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
		3367
		3368	push @{ $ns->{query_queue} }, @$queue;
		3369
		3370	if (@{ $ns->{query_queue} } == @$queue) {
		3371	if (@$queue) {
		3372	$ns->send_packet ($ns->{query_queue}[0][0]);
		3373	} else {
		3374	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		3375	}
		3376	}
		3377	},
		3378	on_exticmd => sub {
		3379	my ($ns, $buf) = @_;
		3380
		3381	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3382
		3383	if (ref $msg) {
		3384	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3385
		3386	if (my $cb = $EXTIACMD{$type}) {
		3387	$cb->(
		3388	$ns,
		3389	sub {
		3390	$ns->ext_msg ("reply-$reply", @_)
		3391	if $reply;
		3392	},
		3393	@payload
		3394	);
		3395	} else {
		3396	my @reply;
		3397
		3398	if (my $cb = $EXTICMD{$type}) {
		3399	@reply = $cb->($ns, @payload);
		3400	}
		3401
		3402	$ns->ext_msg ("reply-$reply", @reply)
		3403	if $reply;
		3404	}
		3405	} else {
		3406	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3407	}
		3408
		3409	cf::override;
		3410	},
		3411	);
		3412
		3413	=item $client->async (\&cb)
		3414
		3415	Create a new coroutine, running the specified callback. The coroutine will
		3416	be automatically cancelled when the client gets destroyed (e.g. on logout,
		3417	or loss of connection).
		3418
		3419	=cut
		3420
		3421	sub cf::client::async {
		3422	my ($self, $cb) = @_;
		3423
		3424	my $coro = &Coro::async ($cb);
		3425
		3426	$coro->on_destroy (sub {
		3427	delete $self->{_coro}{$coro+0};
		3428	});
		3429
		3430	$self->{_coro}{$coro+0} = $coro;
		3431
		3432	$coro
		3433	}
		3434
		3435	cf::client->attach (
		3436	on_client_destroy => sub {
		3437	my ($ns) = @_;
		3438
		3439	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
		3440	},
		3441	);
		3442
		3443	=back
		3444
845		3445
846	=head2 SAFE SCRIPTING	3446	=head2 SAFE SCRIPTING
847		3447
848	Functions that provide a safe environment to compile and execute	3448	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	3449	snippets of perl code without them endangering the safety of the server
…		…
856	our $safe = new Safe "safe";	3456	our $safe = new Safe "safe";
857	our $safe_hole = new Safe::Hole;	3457	our $safe_hole = new Safe::Hole;
858		3458
859	$SIG{FPE} = 'IGNORE';	3459	$SIG{FPE} = 'IGNORE';
860		3460
861	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3461	$safe->permit_only (Opcode::opset qw(
		3462	:base_core :base_mem :base_orig :base_math :base_loop
		3463	grepstart grepwhile mapstart mapwhile
		3464	sort time
		3465	));
862		3466
863	# here we export the classes and methods available to script code	3467	# here we export the classes and methods available to script code
864		3468
865	=pod	3469	=pod
866		3470
867	The following fucntions and emthods are available within a safe environment:	3471	The following functions and methods are available within a safe environment:
868		3472
869	cf::object contr pay_amount pay_player	3473	cf::object
		3474	contr pay_amount pay_player map x y force_find force_add destroy
		3475	insert remove name archname title slaying race decrease split
		3476	value
		3477
870	cf::object::player player	3478	cf::object::player
871	cf::player peaceful	3479	player
		3480
		3481	cf::player
		3482	peaceful
		3483
		3484	cf::map
		3485	trigger
872		3486
873	=cut	3487	=cut
874		3488
875	for (	3489	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	3490	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3491	insert remove inv nrof name archname title slaying race
		3492	decrease split destroy change_exp value msg lore send_msg)],
877	["cf::object::player" => qw(player)],	3493	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	3494	["cf::player" => qw(peaceful send_msg)],
		3495	["cf::map" => qw(trigger)],
879	) {	3496	) {
880	no strict 'refs';
881	my ($pkg, @funs) = @$_;	3497	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3498	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	3499	for @funs;
884	}	3500	}
885		3501
…		…
900		3516
901	my $qcode = $code;	3517	my $qcode = $code;
902	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3518	$qcode =~ s/"/‟/g; # not allowed in #line filenames
903	$qcode =~ s/\n/\\n/g;	3519	$qcode =~ s/\n/\\n/g;
904		3520
		3521	%vars = (_dummy => 0) unless %vars;
		3522
		3523	my @res;
905	local $_;	3524	local $_;
906	local @safe::cf::_safe_eval_args = values %vars;
907		3525
908	my $eval =	3526	my $eval =
909	"do {\n"	3527	"do {\n"
910	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3528	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
911	. "#line 0 \"{$qcode}\"\n"	3529	. "#line 0 \"{$qcode}\"\n"
912	. $code	3530	. $code
913	. "\n}"	3531	. "\n}"
914	;	3532	;
915		3533
		3534	if ($CFG{safe_eval}) {
916	sub_generation_inc;	3535	sub_generation_inc;
		3536	local @safe::cf::_safe_eval_args = values %vars;
917	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3537	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
918	sub_generation_inc;	3538	sub_generation_inc;
		3539	} else {
		3540	local @cf::_safe_eval_args = values %vars;
		3541	@res = wantarray ? eval eval : scalar eval $eval;
		3542	}
919		3543
920	if ($@) {	3544	if ($@) {
921	warn "$@";	3545	warn "$@",
922	warn "while executing safe code '$code'\n";	3546	"while executing safe code '$code'\n",
923	warn "with arguments " . (join " ", %vars) . "\n";	3547	"with arguments " . (join " ", %vars) . "\n";
924	}	3548	}
925		3549
926	wantarray ? @res : $res[0]	3550	wantarray ? @res : $res[0]
927	}	3551	}
928		3552
…		…
942	=cut	3566	=cut
943		3567
944	sub register_script_function {	3568	sub register_script_function {
945	my ($fun, $cb) = @_;	3569	my ($fun, $cb) = @_;
946		3570
947	no strict 'refs';	3571	$fun = "safe::$fun" if $CFG{safe_eval};
948	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3572	*$fun = $safe_hole->wrap ($cb);
949	}	3573	}
950		3574
951	=back	3575	=back
952		3576
953	=cut	3577	=cut
954		3578
955	#############################################################################	3579	#############################################################################
956		3580	# the server's init and main functions
957	=head2 EXTENSION DATABASE SUPPORT
958
959	Crossfire maintains a very simple database for extension use. It can
960	currently store anything that can be serialised using Storable, which
961	excludes objects.
962
963	The parameter C<$family> should best start with the name of the extension
964	using it, it should be unique.
965
966	=over 4
967
968	=item $hashref = cf::db_get $family
969
970	Return a hashref for use by the extension C<$family>, which can be
971	modified. After modifications, you have to call C<cf::db_dirty> or
972	C<cf::db_sync>.
973
974	=item $value = cf::db_get $family => $key
975
976	Returns a single value from the database
977
978	=item cf::db_put $family => $hashref
979
980	Stores the given family hashref into the database. Updates are delayed, if
981	you want the data to be synced to disk immediately, use C<cf::db_sync>.
982
983	=item cf::db_put $family => $key => $value
984
985	Stores the given C<$value> in the family hash. Updates are delayed, if you
986	want the data to be synced to disk immediately, use C<cf::db_sync>.
987
988	=item cf::db_dirty
989
990	Marks the database as dirty, to be updated at a later time.
991
992	=item cf::db_sync
993
994	Immediately write the database to disk I<if it is dirty>.
995
996	=cut
997
998	our $DB;
999		3581
1000	{	3582	{
1001	my $path = cf::localdir . "/database.pst";	3583	package cf::face;
1002		3584
1003	sub db_load() {	3585	our %HASH; # hash => idx
1004	warn "loading database $path\n";#d# remove later	3586	our @DATA; # dynamically-created facedata, only faceste 0 used
1005	$DB = stat $path ? Storable::retrieve $path : { };	3587	our @FOFS; # file offset, if > 0
1006	}	3588	our @SIZE; # size of face, in octets
		3589	our @META; # meta hash of face, if any
		3590	our $DATAFH; # facedata filehandle
1007		3591
1008	my $pid;	3592	# internal api, not finalised
		3593	sub set {
		3594	my ($name, $type, $data) = @_;
1009		3595
1010	sub db_save() {	3596	my $idx = cf::face::find $name;
1011	warn "saving database $path\n";#d# remove later
1012	waitpid $pid, 0 if $pid;
1013	if (0 == ($pid = fork)) {
1014	$DB->{_meta}{version} = 1;
1015	Storable::nstore $DB, "$path~";
1016	rename "$path~", $path;
1017	cf::_exit 0 if defined $pid;
1018	}
1019	}
1020		3597
1021	my $dirty;	3598	if ($idx) {
1022		3599	delete $HASH{cf::face::get_csum $idx};
1023	sub db_sync() {
1024	db_save if $dirty;
1025	undef $dirty;
1026	}
1027
1028	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1029	db_sync;
1030	});
1031
1032	sub db_dirty() {
1033	$dirty = 1;
1034	$idle->start;
1035	}
1036
1037	sub db_get($;$) {
1038	@_ >= 2
1039	? $DB->{$_[0]}{$_[1]}
1040	: ($DB->{$_[0]} ||= { })
1041	}
1042
1043	sub db_put($$;$) {
1044	if (@_ >= 3) {
1045	$DB->{$_[0]}{$_[1]} = $_[2];
1046	} else {	3600	} else {
1047	$DB->{$_[0]} = $_[1];	3601	$idx = cf::face::alloc $name;
1048	}
1049	db_dirty;
1050	}
1051
1052	attach_global
1053	prio => 10000,
1054	on_cleanup => sub {
1055	db_sync;
1056	},	3602	}
		3603
		3604	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3605
		3606	cf::face::set_type $idx, $type;
		3607	cf::face::set_csum $idx, 0, $hash;
		3608
		3609	# we need to destroy the SV itself, not just modify it, as a running ix
		3610	# might hold a reference to it: "delete" achieves that.
		3611	delete $FOFS[0][$idx];
		3612	delete $DATA[0][$idx];
		3613	$DATA[0][$idx] = $data;
		3614	$SIZE[0][$idx] = length $data;
		3615	delete $META[$idx];
		3616	$HASH{$hash} = $idx;#d#
		3617
		3618	$idx
		3619	}
		3620
		3621	sub _get_data($$$) {
		3622	my ($idx, $set, $cb) = @_;
		3623
		3624	if (defined $DATA[$set][$idx]) {
		3625	$cb->($DATA[$set][$idx]);
		3626	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3627	my $size = $SIZE[$set][$idx];
		3628	my $buf;
		3629	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3630	if ($_[0] == $size) {
		3631	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3632	$cb->($buf);
		3633	} else {
		3634	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3635	}
		3636	};
		3637	} else {
		3638	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3639	}
		3640	}
		3641
		3642	# rather ineffient
		3643	sub cf::face::get_data($;$) {
		3644	my ($idx, $set) = @_;
		3645
		3646	_get_data $idx, $set, Coro::rouse_cb;
		3647	Coro::rouse_wait
		3648	}
		3649
		3650	sub cf::face::ix {
		3651	my ($ns, $set, $idx, $pri) = @_;
		3652
		3653	_get_data $idx, $set, sub {
		3654	$ns->ix_send ($idx, $pri, $_[0]);
		3655	};
		3656	}
		3657	}
		3658
		3659	sub load_facedata($) {
		3660	my ($path) = @_;
		3661
		3662	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3663
		3664	trace "loading facedata from $path\n";
		3665
		3666	my $facedata = decode_storable load_file "$path/faceinfo";
		3667
		3668	$facedata->{version} == 2
		3669	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3670
		3671	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3672	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3673
		3674	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3675
		3676	# BEGIN ATOMIC
		3677	# from here on, everything must be atomic - no thread switch allowed
		3678	my $t1 = EV::time;
		3679
		3680	{
		3681	my $faces = $facedata->{faceinfo};
		3682
		3683	for my $face (sort keys %$faces) {
		3684	my $info = $faces->{$face};
		3685	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3686
		3687	cf::face::set_visibility $idx, $info->{visibility};
		3688	cf::face::set_magicmap $idx, $info->{magicmap};
		3689	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3690	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3691	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3692	$cf::face::HASH{$info->{hash64}} = $idx;
		3693	delete $cf::face::META[$idx];
		3694	}
		3695
		3696	while (my ($face, $info) = each %$faces) {
		3697	next unless $info->{smooth};
		3698
		3699	my $idx = cf::face::find $face
		3700	or next;
		3701
		3702	if (my $smooth = cf::face::find $info->{smooth}) {
		3703	cf::face::set_smooth $idx, $smooth;
		3704	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3705	} else {
		3706	error "smooth face '$info->{smooth}' not found for face '$face'";
		3707	}
		3708	}
		3709	}
		3710
		3711	{
		3712	my $anims = $facedata->{animinfo};
		3713
		3714	while (my ($anim, $info) = each %$anims) {
		3715	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3716	}
		3717
		3718	cf::anim::invalidate_all; # d'oh
		3719	}
		3720
		3721	{
		3722	my $res = $facedata->{resource};
		3723
		3724	while (my ($name, $info) = each %$res) {
		3725	if (defined (my $type = $info->{type})) {
		3726	# TODO: different hash - must free and use new index, or cache ixface data queue
		3727	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3728
		3729	cf::face::set_type $idx, $type;
		3730	cf::face::set_csum $idx, 0, $info->{hash};
		3731	$cf::face::SIZE[0][$idx] = $info->{size};
		3732	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3733	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3734	$cf::face::HASH{$info->{hash}} = $idx;
		3735	} else {
		3736	# $RESOURCE{$name} = $info; # unused
		3737	}
		3738	}
		3739	}
		3740
		3741	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3742
		3743	# HACK to clear player env face cache, we need some signal framework
		3744	# for this (global event?)
		3745	%ext::player_env::MUSIC_FACE_CACHE = ();
		3746
		3747	# END ATOMIC
		3748
		3749	cf::debug "facedata atomic update time ", EV::time - $t1;
		3750
		3751	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3752
		3753	aio_close $fh if $fh; # close old facedata
		3754
		3755	1
		3756	}
		3757
		3758	register_exticmd fx_want => sub {
		3759	my ($ns, $want) = @_;
		3760
		3761	while (my ($k, $v) = each %$want) {
		3762	$ns->fx_want ($k, $v);
		3763	}
		3764	};
		3765
		3766	sub load_resource_file($) {
		3767	my $guard = lock_acquire "load_resource_file";
		3768
		3769	my $status = load_resource_file_ $_[0];
		3770	get_slot 0.1, 100;
		3771	cf::arch::commit_load;
		3772
		3773	$status
		3774	}
		3775
		3776	sub reload_exp_table {
		3777	_reload_exp_table;
		3778
		3779	cf::face::set
		3780	"res/exp_table" => FT_RSRC,
		3781	JSON::XS->new->utf8->canonical->encode (
		3782	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3783	);
		3784	}
		3785
		3786	sub reload_materials {
		3787	_reload_materials;
		3788	}
		3789
		3790	sub reload_regions {
		3791	# HACK to clear player env face cache, we need some signal framework
		3792	# for this (global event?)
		3793	%ext::player_env::MUSIC_FACE_CACHE = ();
		3794
		3795	load_resource_file "$MAPDIR/regions"
		3796	or die "unable to load regions file\n";
		3797
		3798	for (cf::region::list) {
		3799	$_->{match} = qr/$_->{match}/
		3800	if exists $_->{match};
		3801	}
		3802	}
		3803
		3804	sub reload_facedata {
		3805	load_facedata $DATADIR
		3806	or die "unable to load facedata\n";
		3807	}
		3808
		3809	sub reload_archetypes {
		3810	load_resource_file "$DATADIR/archetypes"
		3811	or die "unable to load archetypes\n";
		3812
		3813	cf::face::set
		3814	"res/skill_info" => FT_RSRC,
		3815	JSON::XS->new->utf8->canonical->encode (
		3816	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3817	);
		3818
		3819	cf::face::set
		3820	"res/spell_paths" => FT_RSRC,
		3821	JSON::XS->new->utf8->canonical->encode (
		3822	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3823	);
		3824
		3825	# command completion
		3826	my @commands;
		3827
		3828	for (0..cf::arch::skillvec_size - 1) {
		3829	my $skill = cf::arch::skillvec $_;
		3830	my $name = $skill->name;
		3831	my $flags = cf::skill_flags $skill->subtype;
		3832
		3833	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3834	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3835	}
		3836
		3837	cf::client::set_command_face skill => \@commands;
		3838	}
		3839
		3840	sub reload_treasures {
		3841	load_resource_file "$DATADIR/treasures"
		3842	or die "unable to load treasurelists\n";
		3843	}
		3844
		3845	sub reload_sound {
		3846	trace "loading sound config from $DATADIR/sound\n";
		3847
		3848	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3849
		3850	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3851	my $sound = $soundconf->{compat}[$_]
		3852	or next;
		3853
		3854	my $face = cf::face::find "sound/$sound->[1]";
		3855	cf::sound::set $sound->[0] => $face;
		3856	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3857	}
		3858
		3859	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3860	my $face = cf::face::find "sound/$v";
		3861	cf::sound::set $k => $face;
		3862	}
		3863	}
		3864
		3865	sub reload_resources {
		3866	trace "reloading resource files...\n";
		3867
		3868	reload_materials;
		3869	reload_facedata;
		3870	reload_exp_table;
		3871	reload_sound;
		3872	reload_archetypes;
		3873	reload_regions;
		3874	reload_treasures;
		3875
		3876	trace "finished reloading resource files\n";
		3877	}
		3878
		3879	sub reload_config {
		3880	trace "reloading config file...\n";
		3881
		3882	my $config = load_file "$CONFDIR/config";
		3883	utf8::decode $config;
		3884	*CFG = decode_yaml $config;
		3885
		3886	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3887
		3888	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3889	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3890
		3891	if (exists $CFG{mlockall}) {
		3892	eval {
		3893	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3894	and die "WARNING: m(un)lockall failed: $!\n";
		3895	};
		3896	warn $@ if $@;
		3897	}
		3898	}
		3899
		3900	sub pidfile() {
		3901	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3902	or die "$PIDFILE: $!";
		3903	flock $fh, &Fcntl::LOCK_EX
		3904	or die "$PIDFILE: flock: $!";
		3905	$fh
		3906	}
		3907
		3908	# make sure only one server instance is running at any one time
		3909	sub atomic {
		3910	my $fh = pidfile;
		3911
		3912	my $pid = <$fh>;
		3913	kill 9, $pid if $pid > 0;
		3914
		3915	seek $fh, 0, 0;
		3916	print $fh $$;
		3917	}
		3918
		3919	sub main_loop {
		3920	trace "EV::run starting\n";
		3921	if (1) {
		3922	EV::run;
		3923	}
		3924	trace "EV::run returned\n";
		3925	goto &main_loop unless $REALLY_UNLOOP;
		3926	}
		3927
		3928	sub main {
		3929	cf::init_globals; # initialise logging
		3930
		3931	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3932	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3933	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3934	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3935
		3936	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3937
		3938	# we must not ever block the main coroutine
		3939	$Coro::idle = sub {
		3940	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3941	(async {
		3942	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3943	EV::run EV::RUN_ONESHOT;
		3944	})->prio (Coro::PRIO_MAX);
1057	;	3945	};
		3946
		3947	evthread_start IO::AIO::poll_fileno;
		3948
		3949	cf::sync_job {
		3950	cf::incloader::init ();
		3951
		3952	db_init;
		3953
		3954	cf::init_anim;
		3955	cf::init_attackmess;
		3956	cf::init_dynamic;
		3957
		3958	cf::load_settings;
		3959
		3960	reload_resources;
		3961	reload_config;
		3962
		3963	cf::init_uuid;
		3964	cf::init_signals;
		3965	cf::init_skills;
		3966
		3967	cf::init_beforeplay;
		3968
		3969	atomic;
		3970
		3971	load_extensions;
		3972
		3973	utime time, time, $RUNTIMEFILE;
		3974
		3975	# no (long-running) fork's whatsoever before this point(!)
		3976	use POSIX ();
		3977	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3978
		3979	cf::_post_init 0;
		3980	};
		3981
		3982	cf::object::thawer::errors_are_fatal 0;
		3983	info "parse errors in files are no longer fatal from this point on.\n";
		3984
		3985	AE::postpone {
		3986	undef &main; # free gobs of memory :)
		3987	};
		3988
		3989	goto &main_loop;
1058	}	3990	}
1059		3991
1060	#############################################################################	3992	#############################################################################
1061	# the server's main()	3993	# initialisation and cleanup
1062		3994
1063	sub cfg_load {	3995	# install some emergency cleanup handlers
1064	open my $fh, "<:utf8", cf::confdir . "/config"	3996	BEGIN {
		3997	our %SIGWATCHER = ();
		3998	for my $signal (qw(INT HUP TERM)) {
		3999	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		4000	cf::cleanup "SIG$signal";
		4001	};
		4002	}
		4003	}
		4004
		4005	sub write_runtime_sync {
		4006	my $t0 = AE::time;
		4007
		4008	# first touch the runtime file to show we are still running:
		4009	# the fsync below can take a very very long time.
		4010
		4011	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		4012
		4013	my $guard = cf::lock_acquire "write_runtime";
		4014
		4015	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
1065	or return;	4016	or return;
1066		4017
1067	local $/;	4018	my $value = $cf::RUNTIME + 90 + 10;
1068	*CFG = YAML::Syck::Load <$fh>;	4019	# 10 is the runtime save interval, for a monotonic clock
1069	}	4020	# 60 allows for the watchdog to kill the server.
1070		4021
1071	sub main {	4022	(aio_write $fh, 0, (length $value), $value, 0) <= 0
1072	cfg_load;	4023	and return;
1073	db_load;	4024
		4025	# always fsync - this file is important
		4026	aio_fsync $fh
		4027	and return;
		4028
		4029	# touch it again to show we are up-to-date
		4030	aio_utime $fh, undef, undef;
		4031
		4032	close $fh
		4033	or return;
		4034
		4035	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4036	and return;
		4037
		4038	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4039
		4040	1
		4041	}
		4042
		4043	our $uuid_lock;
		4044	our $uuid_skip;
		4045
		4046	sub write_uuid_sync($) {
		4047	$uuid_skip ||= $_[0];
		4048
		4049	return if $uuid_lock;
		4050	local $uuid_lock = 1;
		4051
		4052	my $uuid = "$LOCALDIR/uuid";
		4053
		4054	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4055	or return;
		4056
		4057	my $value = uuid_seq uuid_cur;
		4058
		4059	unless ($value) {
		4060	info "cowardly refusing to write zero uuid value!\n";
		4061	return;
		4062	}
		4063
		4064	my $value = uuid_str $value + $uuid_skip;
		4065	$uuid_skip = 0;
		4066
		4067	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4068	and return;
		4069
		4070	# always fsync - this file is important
		4071	aio_fsync $fh
		4072	and return;
		4073
		4074	close $fh
		4075	or return;
		4076
		4077	aio_rename "$uuid~", $uuid
		4078	and return;
		4079
		4080	trace "uuid file written ($value).\n";
		4081
		4082	1
		4083
		4084	}
		4085
		4086	sub write_uuid($$) {
		4087	my ($skip, $sync) = @_;
		4088
		4089	$sync ? write_uuid_sync $skip
		4090	: async { write_uuid_sync $skip };
		4091	}
		4092
		4093	sub emergency_save() {
		4094	my $freeze_guard = cf::freeze_mainloop;
		4095
		4096	info "emergency_perl_save: enter\n";
		4097
		4098	# this is a trade-off: we want to be very quick here, so
		4099	# save all maps without fsync, and later call a global sync
		4100	# (which in turn might be very very slow)
		4101	local $USE_FSYNC = 0;
		4102
		4103	cf::sync_job {
		4104	cf::write_runtime_sync; # external watchdog should not bark
		4105
		4106	# use a peculiar iteration method to avoid tripping on perl
		4107	# refcount bugs in for. also avoids problems with players
		4108	# and maps saved/destroyed asynchronously.
		4109	info "emergency_perl_save: begin player save\n";
		4110	for my $login (keys %cf::PLAYER) {
		4111	my $pl = $cf::PLAYER{$login} or next;
		4112	$pl->valid or next;
		4113	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		4114	$pl->save;
		4115	}
		4116	info "emergency_perl_save: end player save\n";
		4117
		4118	cf::write_runtime_sync; # external watchdog should not bark
		4119
		4120	info "emergency_perl_save: begin map save\n";
		4121	for my $path (keys %cf::MAP) {
		4122	my $map = $cf::MAP{$path} or next;
		4123	$map->valid or next;
		4124	$map->save;
		4125	}
		4126	info "emergency_perl_save: end map save\n";
		4127
		4128	cf::write_runtime_sync; # external watchdog should not bark
		4129
		4130	info "emergency_perl_save: begin database checkpoint\n";
		4131	BDB::db_env_txn_checkpoint $DB_ENV;
		4132	info "emergency_perl_save: end database checkpoint\n";
		4133
		4134	info "emergency_perl_save: begin write uuid\n";
		4135	write_uuid_sync 1;
		4136	info "emergency_perl_save: end write uuid\n";
		4137
		4138	cf::write_runtime_sync; # external watchdog should not bark
		4139
		4140	trace "emergency_perl_save: syncing database to disk";
		4141	BDB::db_env_txn_checkpoint $DB_ENV;
		4142
		4143	info "emergency_perl_save: starting sync\n";
		4144	IO::AIO::aio_sync sub {
		4145	info "emergency_perl_save: finished sync\n";
		4146	};
		4147
		4148	cf::write_runtime_sync; # external watchdog should not bark
		4149
		4150	trace "emergency_perl_save: flushing outstanding aio requests";
		4151	while (IO::AIO::nreqs || BDB::nreqs) {
		4152	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4153	}
		4154
		4155	cf::write_runtime_sync; # external watchdog should not bark
		4156	};
		4157
		4158	info "emergency_perl_save: leave\n";
		4159	}
		4160
		4161	sub post_cleanup {
		4162	my ($make_core) = @_;
		4163
		4164	IO::AIO::flush;
		4165
		4166	error Carp::longmess "post_cleanup backtrace"
		4167	if $make_core;
		4168
		4169	my $fh = pidfile;
		4170	unlink $PIDFILE if <$fh> == $$;
		4171	}
		4172
		4173	# a safer delete_package, copied from Symbol
		4174	sub clear_package($) {
		4175	my $pkg = shift;
		4176
		4177	# expand to full symbol table name if needed
		4178	unless ($pkg =~ /^main::.*::$/) {
		4179	$pkg = "main$pkg" if $pkg =~ /^::/;
		4180	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4181	$pkg .= '::' unless $pkg =~ /::$/;
		4182	}
		4183
		4184	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4185	my $stem_symtab = *{$stem}{HASH};
		4186
		4187	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4188	or return;
		4189
		4190	# clear all symbols
		4191	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4192	for my $name (keys %$leaf_symtab) {
		4193	_gv_clear *{"$pkg$name"};
		4194	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4195	}
		4196	}
		4197
		4198	sub do_reload_perl() {
		4199	# can/must only be called in main
		4200	unless (in_main) {
		4201	error "can only reload from main coroutine";
		4202	return;
		4203	}
		4204
		4205	return if $RELOAD++;
		4206
		4207	my $t1 = AE::time;
		4208
		4209	while ($RELOAD) {
		4210	cf::get_slot 0.1, -1, "reload_perl";
		4211	info "perl_reload: reloading...";
		4212
		4213	trace "perl_reload: entering sync_job";
		4214
		4215	cf::sync_job {
		4216	#cf::emergency_save;
		4217
		4218	trace "perl_reload: cancelling all extension coros";
		4219	$_->cancel for values %EXT_CORO;
		4220	%EXT_CORO = ();
		4221
		4222	trace "perl_reload: removing commands";
		4223	%COMMAND = ();
		4224
		4225	trace "perl_reload: removing ext/exti commands";
		4226	%EXTCMD = ();
		4227	%EXTICMD = ();
		4228
		4229	trace "perl_reload: unloading/nuking all extensions";
		4230	for my $pkg (@EXTS) {
		4231	trace "... unloading $pkg";
		4232
		4233	if (my $cb = $pkg->can ("unload")) {
		4234	eval {
		4235	$cb->($pkg);
		4236	1
		4237	} or error "$pkg unloaded, but with errors: $@";
		4238	}
		4239
		4240	trace "... clearing $pkg";
		4241	clear_package $pkg;
		4242	}
		4243
		4244	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4245	while (my ($k, $v) = each %INC) {
		4246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4247
		4248	trace "... unloading $k";
		4249	delete $INC{$k};
		4250
		4251	$k =~ s/\.pm$//;
		4252	$k =~ s/\//::/g;
		4253
		4254	if (my $cb = $k->can ("unload_module")) {
		4255	$cb->();
		4256	}
		4257
		4258	clear_package $k;
		4259	}
		4260
		4261	trace "perl_reload: getting rid of safe::, as good as possible";
		4262	clear_package "safe::$_"
		4263	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		4264
		4265	trace "perl_reload: unloading cf.pm \"a bit\"";
		4266	delete $INC{"cf.pm"};
		4267	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
		4268
		4269	# don't, removes xs symbols, too,
		4270	# and global variables created in xs
		4271	#clear_package __PACKAGE__;
		4272
		4273	info "perl_reload: unload completed, starting to reload now";
		4274
		4275	trace "perl_reload: reloading cf.pm";
		4276	require cf;
		4277	cf::_connect_to_perl_1;
		4278
		4279	trace "perl_reload: loading config and database again";
		4280	cf::reload_config;
		4281
		4282	trace "perl_reload: loading extensions";
1074	load_extensions;	4283	cf::load_extensions;
1075	Event::loop;	4284
		4285	if ($REATTACH_ON_RELOAD) {
		4286	trace "perl_reload: reattaching attachments to objects/players";
		4287	_global_reattach; # objects, sockets
		4288	trace "perl_reload: reattaching attachments to maps";
		4289	reattach $_ for values %MAP;
		4290	trace "perl_reload: reattaching attachments to players";
		4291	reattach $_ for values %PLAYER;
		4292	}
		4293
		4294	cf::_post_init 1;
		4295
		4296	trace "perl_reload: leaving sync_job";
		4297
		4298	1
		4299	} or do {
		4300	error $@;
		4301	cf::cleanup "perl_reload: error, exiting.";
		4302	};
		4303
		4304	--$RELOAD;
		4305	}
		4306
		4307	$t1 = AE::time - $t1;
		4308	info "perl_reload: completed in ${t1}s\n";
		4309	};
		4310
		4311	our $RELOAD_WATCHER; # used only during reload
		4312
		4313	sub reload_perl() {
		4314	# doing reload synchronously and two reloads happen back-to-back,
		4315	# coro crashes during coro_state_free->destroy here.
		4316
		4317	$RELOAD_WATCHER ||= cf::async {
		4318	Coro::AIO::aio_wait cache_extensions;
		4319
		4320	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4321	do_reload_perl;
		4322	undef $RELOAD_WATCHER;
		4323	};
		4324	};
1076	}	4325	}
		4326
		4327	register_command "reload" => sub {
		4328	my ($who, $arg) = @_;
		4329
		4330	if ($who->flag (FLAG_WIZ)) {
		4331	$who->message ("reloading server.");
		4332	async {
		4333	$Coro::current->{desc} = "perl_reload";
		4334	reload_perl;
		4335	};
		4336	}
		4337	};
1077		4338
1078	#############################################################################	4339	#############################################################################
1079	# initialisation
1080		4340
1081	sub _perl_reload(&) {	4341	my $bug_warning = 0;
1082	my ($msg) = @_;
1083		4342
1084	$msg->("reloading...");	4343	sub wait_for_tick() {
		4344	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
1085		4345
1086	eval {	4346	$WAIT_FOR_TICK->wait;
1087	# cancel all watchers	4347	}
1088	for (Event::all_watchers) {	4348
1089	$_->cancel if $_->data & WF_AUTOCANCEL;	4349	sub wait_for_tick_begin() {
		4350	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4351
		4352	my $signal = new Coro::Signal;
		4353	push @WAIT_FOR_TICK_BEGIN, $signal;
		4354	$signal->wait;
		4355	}
		4356
		4357	sub tick {
		4358	if ($Coro::current != $Coro::main) {
		4359	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4360	unless ++$bug_warning > 10;
		4361	return;
		4362	}
		4363
		4364	cf::one_tick; # one server iteration
		4365
		4366	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4367
		4368	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4369	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4370	Coro::async_pool {
		4371	$Coro::current->{desc} = "runtime saver";
		4372	write_runtime_sync
		4373	or error "ERROR: unable to write runtime file: $!";
1090	}	4374	};
		4375	}
1091		4376
1092	# unload all extensions	4377	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
1093	for (@exts) {	4378	$sig->send;
1094	$msg->("unloading <$_>");	4379	}
1095	unload_extension $_;	4380	$WAIT_FOR_TICK->broadcast;
1096	}
1097		4381
1098	# unload all modules loaded from $LIBDIR	4382	$LOAD = ($NOW - $TICK_START) / $TICK;
1099	while (my ($k, $v) = each %INC) {	4383	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
1100	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1101		4384
1102	$msg->("removing <$k>");	4385	if (0) {
1103	delete $INC{$k};	4386	if ($NEXT_TICK) {
		4387	my $jitter = $TICK_START - $NEXT_TICK;
		4388	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4389	debug "jitter $JITTER\n";#d#
		4390	}
		4391	}
		4392	}
1104		4393
1105	$k =~ s/\.pm$//;	4394	{
1106	$k =~ s/\//::/g;	4395	# configure BDB
		4396	info "initialising database";
1107		4397
1108	if (my $cb = $k->can ("unload_module")) {	4398	BDB::min_parallel 16;
1109	$cb->();	4399	BDB::max_poll_reqs $TICK * 0.1;
		4400	#$AnyEvent::BDB::WATCHER->priority (1);
		4401
		4402	unless ($DB_ENV) {
		4403	$DB_ENV = BDB::db_env_create;
		4404	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4405	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4406	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4407	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4408	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4409
		4410	cf::sync_job {
		4411	eval {
		4412	BDB::db_env_open
		4413	$DB_ENV,
		4414	$BDBDIR,
		4415	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4416	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4417	0666;
		4418
		4419	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1110	}	4420	};
1111		4421
1112	Symbol::delete_package $k;	4422	cf::cleanup "db_env_open(db): $@" if $@;
1113	}	4423	};
		4424	}
1114		4425
1115	# sync database to disk	4426	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1116	cf::db_sync;	4427	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1117
1118	# get rid of safe::, as good as possible
1119	Symbol::delete_package "safe::$_"
1120	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
1121
1122	# remove register_script_function callbacks
1123	# TODO
1124
1125	# unload cf.pm "a bit"
1126	delete $INC{"cf.pm"};
1127
1128	# don't, removes xs symbols, too,
1129	# and global variables created in xs
1130	#Symbol::delete_package __PACKAGE__;
1131
1132	# reload cf.pm
1133	$msg->("reloading cf.pm");
1134	require cf;
1135
1136	# load config and database again
1137	cf::cfg_load;
1138	cf::db_load;
1139
1140	# load extensions
1141	$msg->("load extensions");
1142	cf::load_extensions;
1143
1144	# reattach attachments to objects
1145	$msg->("reattach");
1146	_global_reattach;
1147	};	4428	};
1148	$msg->($@) if $@;	4429	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1149		4430	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1150	$msg->("reloaded");
1151	};
1152
1153	sub perl_reload() {
1154	_perl_reload {
1155	warn $_[0];
1156	print "$_[0]\n";
1157	};	4431	};
1158	}	4432	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4433	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4434	};
1159		4435
1160	register "<global>", __PACKAGE__;	4436	info "database initialised";
		4437	}
1161		4438
1162	register_command "perl-reload" => sub {	4439	{
		4440	# configure IO::AIO
		4441
		4442	info "initialising aio";
		4443	IO::AIO::min_parallel 8;
		4444	IO::AIO::max_poll_time $TICK * 0.1;
		4445	undef $AnyEvent::AIO::WATCHER;
		4446	info "aio initialised";
		4447	}
		4448
		4449	our $_log_backtrace;
		4450	our $_log_backtrace_last;
		4451
		4452	sub _log_backtrace {
1163	my ($who, $arg) = @_;	4453	my ($msg, @addr) = @_;
1164		4454
1165	if ($who->flag (FLAG_WIZ)) {	4455	$msg =~ s/\n$//;
1166	_perl_reload {	4456
1167	warn $_[0];	4457	if ($_log_backtrace_last eq $msg) {
1168	$who->message ($_[0]);	4458	LOG llevInfo, "[ABT] $msg\n";
		4459	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4460	# limit the # of concurrent backtraces
		4461	} elsif ($_log_backtrace < 2) {
		4462	$_log_backtrace_last = $msg;
		4463	++$_log_backtrace;
		4464	my $perl_bt = Carp::longmess $msg;
		4465	async {
		4466	$Coro::current->{desc} = "abt $msg";
		4467
		4468	my @bt = fork_call {
		4469	@addr = map { sprintf "%x", $_ } @addr;
		4470	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4471	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4472	or die "addr2line: $!";
		4473
		4474	my @funcs;
		4475	my @res = <$fh>;
		4476	chomp for @res;
		4477	while (@res) {
		4478	my ($func, $line) = splice @res, 0, 2, ();
		4479	push @funcs, "[$func] $line";
		4480	}
		4481
		4482	@funcs
		4483	};
		4484
		4485	LOG llevInfo, "[ABT] $perl_bt\n";
		4486	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4487	LOG llevInfo, "[ABT] $_\n" for @bt;
		4488	--$_log_backtrace;
1169	};	4489	};
1170	}	4490	} else {
1171	};	4491	LOG llevInfo, "[ABT] $msg\n";
1172		4492	LOG llevInfo, "[ABT] [overload, suppressed]\n";
1173	unshift @INC, $LIBDIR;
1174
1175	$TICK_WATCHER = Event->timer (
1176	prio => 1,
1177	async => 1,
1178	at => $NEXT_TICK || 1,
1179	data => WF_AUTOCANCEL,
1180	cb => sub {
1181	cf::server_tick; # one server iteration
1182
1183	my $NOW = Event::time;
1184	$NEXT_TICK += $TICK;
1185
1186	# if we are delayed by four ticks or more, skip them all
1187	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1188
1189	$TICK_WATCHER->at ($NEXT_TICK);
1190	$TICK_WATCHER->start;
1191	},	4493	}
1192	);	4494	}
1193		4495
1194	IO::AIO::max_poll_time $TICK * 0.2;	4496	# load additional modules
		4497	require "cf/$_.pm" for @EXTRA_MODULES;
		4498	cf::_connect_to_perl_2;
1195		4499
1196	Event->io (fd => IO::AIO::poll_fileno,	4500	END { cf::emergency_save }
1197	poll => 'r',
1198	prio => 5,
1199	data => WF_AUTOCANCEL,
1200	cb => \&IO::AIO::poll_cb);
1201		4501
1202	1	4502	1
1203		4503

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