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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.47 by root, Sun Aug 27 13:02:04 2006 UTC vs.
Revision 1.615 by root, Sat Feb 23 22:37:39 2013 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
10	use Time::HiRes;
11	use Event;	37	use AnyEvent ();
12	$Event::Eval = 1; # no idea why this is required, but it is	38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
13		40
14	use strict;	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 ();
15		55
16	_reload_1;	56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
		59	use Data::Dumper;
		60	use Fcntl;
		61	use YAML::XS ();
		62	use IO::AIO ();
		63	use Compress::LZF;
		64	use Digest::MD5 ();
17		65
		66	AnyEvent::detect;
		67
		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" };
		81
		82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		83
		84	our @ORIG_INC;
		85
18	our %COMMAND = ();	86	our %COMMAND = ();
		87	our %COMMAND_TIME = ();
		88
		89	our @EXTS = (); # list of extension package names
		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
		96
		97	our $RELOAD; # number of reloads so far, non-zero while in reload
19	our @EVENT;	98	our @EVENT;
20	our %PROP_TYPE;	99	our @REFLECT; # set by XS
21	our %PROP_IDX;	100	our %REFLECT; # set by us
22	our $LIBDIR = maps_directory "perl";
23		101
24	our $TICK = MAX_TIME * 1e-6;	102	our $CONFDIR = confdir;
25	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
26	our $NEXT_TICK;	128	our $NEXT_TICK;
		129	our $USE_FSYNC = 1; # use fsync to write maps - default on
27		130
28	BEGIN {	131	our $BDB_DEADLOCK_WATCHER;
29	*CORE::GLOBAL::warn = sub {	132	our $BDB_CHECKPOINT_WATCHER;
		133	our $BDB_TRICKLE_WATCHER;
		134	our $DB_ENV;
		135
		136	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		137
		138	our %CFG;
		139	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		140
		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	}
		188
		189	#############################################################################
		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
		202	=head2 GLOBAL VARIABLES
		203
		204	=over 4
		205
		206	=item $cf::UPTIME
		207
		208	The timestamp of the server start (so not actually an "uptime").
		209
		210	=item $cf::SERVER_TICK
		211
		212	An unsigned integer that starts at zero when the server is started and is
		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.
		220
		221	=item $cf::TICK
		222
		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 $cf::LOAD
		246
		247	The raw value load value from the last tick.
		248
		249	=item %cf::CFG
		250
		251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
		252	from wherever your confdir points to.
		253
		254	=item cf::wait_for_tick, cf::wait_for_tick_begin
		255
		256	These are functions that inhibit the current coroutine one tick.
		257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
		259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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
		290	=back
		291
		292	=cut
		293
		294	sub error(@) { LOG llevError, join "", @_ }
		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 {
30	my $msg = join "", @_;	301	my $msg = join "", @_;
		302
31	$msg .= "\n"	303	$msg .= "\n"
32	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
33		305
34	print STDERR "cfperl: $msg";	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
35	LOG llevError, "cfperl: $msg";
36	};
37	}
38		307
39	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!	308	LOG llevWarn, $msg;
		309	};
40		310
41	# generate property mutators	311	$Coro::State::DIEHOOK = sub {
42	sub prop_gen {	312	return unless $^S eq 0; # "eq", not "=="
43	my ($prefix, $class) = @_;
44		313
45	no strict 'refs';	314	error Carp::longmess $_[0];
46		315
47	for my $prop (keys %PROP_TYPE) {	316	if (in_main) {#d#
48	$prop =~ /^\Q$prefix\E_(.*$)/ or next;	317	error "DIEHOOK called in main context, Coro bug?\n";#d#
49	my $sub = lc $1;	318	return;#d#
		319	}#d#
50		320
51	my $type = $PROP_TYPE{$prop};	321	# kill coroutine otherwise
52	my $idx = $PROP_IDX {$prop};	322	Coro::terminate
		323	};
53		324
54	*{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
55	$_[0]->get_property ($type, $idx)	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
56	};	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
57		328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
58	*{"$class\::set_$sub"} = sub {	329	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
59	$_[0]->set_property ($type, $idx, $_[1]);	330	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
60	} unless $ignore_set{$prop};
61	}
62	}
63
64	# auto-generate most of the API
65
66	prop_gen OBJECT_PROP => "cf::object";
67	# CFAPI_OBJECT_ANIMATION?
68	prop_gen PLAYER_PROP => "cf::object::player";
69
70	prop_gen MAP_PROP => "cf::map";
71	prop_gen ARCH_PROP => "cf::arch";
72
73	@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)
74		332
75	# 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
76	# within the Safe compartment.	334	# within the Safe compartment.
77	for my $pkg (qw(cf::object cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {	335	for my $pkg (qw(
78	no strict 'refs';	336	cf::global cf::attachable
		337	cf::object cf::object::player
		338	cf::client cf::player
		339	cf::arch cf::living
		340	cf::map cf::mapspace
		341	cf::party cf::region
		342	)) {
79	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
80	}	344	}
81		345
82	$Event::DIED = sub {	346	$EV::DIED = sub {
83	warn "error in event callback: @_";	347	warn "error in event callback: $@";
84	};	348	};
85		349
86	my %ext_pkg;
87	my @exts;
88	my @hook;
89	my %command;
90	my %extcmd;
91
92	#############################################################################	350	#############################################################################
93	# utility functions
94		351
95	use JSON::Syck (); # TODO# replace by JSON::PC once working	352	sub fork_call(&@);
96		353	sub get_slot($;$$);
97	sub from_json($) {
98	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
99	JSON::Syck::Load $_[0]
100	}
101
102	sub to_json($) {
103	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
104	JSON::Syck::Dump $_[0]
105	}
106		354
107	#############################################################################	355	#############################################################################
108	# "new" plug-in system
109		356
110	=item $object->attach ($attachment, ...)	357	=head2 UTILITY FUNCTIONS
111		358
112	Attach a pre-registered attachment to an object.	359	=over 4
113		360
114	=item $player->attach ($attachment, ...)	361	=item dumpval $ref
115		362
116	Attach a pre-registered attachment to a player.	363	=cut
117		364
118	=item $map->attach ($attachment, ...) # not yet persistent	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	}
119		383
120	Attach a pre-registered attachment to a map.	384	=item $scalar = cf::load_file $path
121		385
122	=item cf::attach_global ...	386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
123		388
124	Attach handlers for global events.	389	=cut
125		390
126	This and all following C<attach_*>-functions expect any number of the	391	sub load_file($) {
127	following handler/hook descriptions:	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
		436	=item $ref = cf::decode_json $json
		437
		438	Converts a JSON string into the corresponding perl data structure.
		439
		440	=item $json = cf::encode_json $ref
		441
		442	Converts a perl data structure into its JSON representation.
		443
		444	=cut
		445
		446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		447
		448	sub encode_json($) { $json_coder->encode ($_[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::loop EV::LOOP_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 });
		927	}
		928
		929	=back
		930
		931	=cut
		932
		933	#############################################################################
		934
		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).
		944
		945	=over 4
		946
		947	=item $attachable->attach ($attachment, key => $value...)
		948
		949	=item $attachable->detach ($attachment)
		950
		951	Attach/detach a pre-registered attachment to a specific object and give it
		952	the specified key/value pairs as arguments.
		953
		954	Example, attach a minesweeper attachment to the given object, making it a
		955	10x10 minesweeper game:
		956
		957	$obj->attach (minesweeper => width => 10, height => 10);
		958
		959	=item $bool = $attachable->attached ($name)
		960
		961	Checks wether the named attachment is currently attached to the object.
		962
		963	=item cf::CLASS->attach ...
		964
		965	=item cf::CLASS->detach ...
		966
		967	Define an anonymous attachment and attach it to all objects of the given
		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:
128		1001
129	=over 4	1002	=over 4
130		1003
131	=item prio => $number	1004	=item prio => $number
132		1005
…		…
134	by another C<prio> setting). Lower priority handlers get executed	1007	by another C<prio> setting). Lower priority handlers get executed
135	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
136	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
137	unless you know what you are doing.	1010	unless you know what you are doing.
138		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
139	=item on_I<event> => \&cb	1018	=item on_I<event> => \&cb
140		1019
141	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
142	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
143	handlers are recognised generally depends on the type of object these	1022	handlers are recognised generally depends on the type of object these
…		…
152	package and register them. Only handlers for eevents supported by the	1031	package and register them. Only handlers for eevents supported by the
153	object/class are recognised.	1032	object/class are recognised.
154		1033
155	=back	1034	=back
156		1035
157	=item cf::attach_to_type $object_type, $subtype, ...	1036	Example, define an attachment called "sockpuppet" that calls the given
		1037	event handler when a monster attacks:
158		1038
159	Attach handlers for a specific object type (e.g. TRANSPORT) and	1039	cf::object::attachment sockpuppet =>
160	subtype. If C<$subtype> is zero or undef, matches all objects of the given	1040	on_skill_attack => sub {
161	type.	1041	my ($self, $victim) = @_;
		1042	...
		1043	}
		1044	}
162		1045
163	=item cf::attach_to_objects ...	1046	=item $attachable->valid
164		1047
165	Attach handlers to all objects. Do not use this except for debugging or	1048	Just because you have a perl object does not mean that the corresponding
166	very rare events, as handlers are (obviously) called for I<all> objects in	1049	C-level object still exists. If you try to access an object that has no
167	the game.	1050	valid C counterpart anymore you get an exception at runtime. This method
168		1051	can be used to test for existence of the C object part without causing an
169	=item cf::attach_to_players ...	1052	exception.
170
171	Attach handlers to all players.
172
173	=item cf::attach_to_maps ...
174
175	Attach handlers to all maps.
176
177	=item cf:register_attachment $name, ...
178		1053
179	=cut	1054	=cut
180		1055
181	# the following variables are defined in .xs and must not be re-created	1056	# the following variables are defined in .xs and must not be re-created
182	our @CB_GLOBAL = (); # registry for all global events	1057	our @CB_GLOBAL = (); # registry for all global events
		1058	our @CB_ATTACHABLE = (); # registry for all attachables
183	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	1059	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
184	our @CB_PLAYER = ();	1060	our @CB_PLAYER = ();
		1061	our @CB_CLIENT = ();
185	our @CB_TYPE = (); # registry for type (cf-object class) based events	1062	our @CB_TYPE = (); # registry for type (cf-object class) based events
186	our @CB_MAP = ();	1063	our @CB_MAP = ();
187		1064
188	my %attachment;	1065	my %attachment;
189		1066
		1067	sub cf::attachable::thawer_merge {
		1068	# simply override everything except _meta
		1069	local $_[0]{_meta};
		1070	%{$_[0]} = %{$_[1]};
		1071	}
		1072
190	sub _attach_cb($\%$$$) {	1073	sub _attach_cb($$$$) {
191	my ($registry, $undo, $event, $prio, $cb) = @_;	1074	my ($registry, $event, $prio, $cb) = @_;
192		1075
193	use sort 'stable';	1076	use sort 'stable';
194		1077
195	$cb = [$prio, $cb];	1078	$cb = [$prio, $cb];
196		1079
197	@{$registry->[$event]} = sort	1080	@{$registry->[$event]} = sort
198	{ $a->[0] cmp $b->[0] }	1081	{ $a->[0] cmp $b->[0] }
199	@{$registry->[$event] || []}, $cb;	1082	@{$registry->[$event] || []}, $cb;
200
201	push @{$undo->{cb}}, [$event, $cb];
202	}	1083	}
		1084
		1085	# hack
		1086	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
203		1087
204	# attach handles attaching event callbacks	1088	# attach handles attaching event callbacks
205	# the only thing the caller has to do is pass the correct	1089	# the only thing the caller has to do is pass the correct
206	# registry (== where the callback attaches to).	1090	# registry (== where the callback attaches to).
207	sub _attach(\@$@) {	1091	sub _attach {
208	my ($registry, $klass, @arg) = @_;	1092	my ($registry, $klass, @arg) = @_;
209		1093
		1094	my $object_type;
210	my $prio = 0;	1095	my $prio = 0;
211
212	my %undo = (
213	registry => $registry,
214	cb => [],
215	);
216
217	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	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	}
218		1102
219	while (@arg) {	1103	while (@arg) {
220	my $type = shift @arg;	1104	my $type = shift @arg;
221		1105
222	if ($type eq "prio") {	1106	if ($type eq "prio") {
223	$prio = shift @arg;	1107	$prio = shift @arg;
224		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
225	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
226	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
227		1120
228	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
229	if (my $cb = $pkg->can ($name)) {	1122	if (my $cb = $pkg->can ($name)) {
230	_attach_cb $registry, %undo, $id, $prio, $cb;	1123	_attach_cb $registry, $id, $prio, $cb;
231	}	1124	}
232	}	1125	}
233		1126
234	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
235	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
236		1129
237	} elsif (ref $type) {	1130	} elsif (ref $type) {
238	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
239		1132
240	} else {	1133	} else {
241	shift @arg;	1134	shift @arg;
242	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
243	}	1136	}
244	}	1137	}
245
246	\%undo
247	}	1138	}
248		1139
249	sub _attach_attachment {	1140	sub _object_attach {
250	my ($obj, $name, @args) = @_;	1141	my ($obj, $name, %arg) = @_;
251		1142
252	my $res;	1143	return if exists $obj->{_attachment}{$name};
253		1144
254	if (my $attach = $attachment{$name}) {	1145	if (my $attach = $attachment{$name}) {
255	my $registry = $obj->registry;	1146	my $registry = $obj->registry;
256		1147
257	for (@$attach) {	1148	for (@$attach) {
258	my ($klass, @attach) = @$_;	1149	my ($klass, @attach) = @$_;
259	$res = _attach @$registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
260	}
261
262	if (my $cb = delete $registry->[EVENT_OBJECT_INSTANTIATE]) {
263	for (@$cb) {
264	eval { $_->[1]->($obj, @args); };
265	if ($@) {
266	warn "$@";
267	warn "... while processing '$name' instantiate with args <@args>.\n";
268	}
269	}	1151	}
270	}	1152
		1153	$obj->{$name} = \%arg;
271	} else {	1154	} else {
272	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
273	}	1156	}
274		1157
275	push @{$obj->{_attachment}}, $name;	1158	$obj->{_attachment}{$name} = undef;
276
277	$res->{attachment} = $name;
278	$res
279	}	1159	}
280		1160
281	sub cf::object::attach {	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 {
282	my ($obj, $name, @args) = @_;	1172	my ($obj, $name) = @_;
283		1173
284	_attach_attachment $obj, $name, @args;	1174	if (ref $obj) {
285	}	1175	delete $obj->{_attachment}{$name};
		1176	reattach ($obj);
		1177	} else {
		1178	Carp::croak "cannot, currently, detach class attachments";
		1179	}
		1180	_recalc_want;
		1181	};
286		1182
287	sub cf::player::attach {	1183	sub cf::attachable::attached {
288	my ($obj, $name, @args) = @_;	1184	my ($obj, $name) = @_;
289		1185
290	_attach_attachment KLASS_PLAYER, $obj, $name, @args;	1186	exists $obj->{_attachment}{$name}
291	}	1187	}
292		1188
293	sub cf::map::attach {	1189	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
294	my ($obj, $name, @args) = @_;	1190	eval "#line " . __LINE__ . " 'cf.pm'
		1191	sub cf::\L$klass\E::_attach_registry {
		1192	(\\\@CB_$klass, KLASS_$klass)
		1193	}
295		1194
296	_attach_attachment KLASS_MAP, $obj, $name, @args;	1195	sub cf::\L$klass\E::attachment {
297	}
298
299	sub attach_global {
300	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
301	}
302
303	sub attach_to_type {
304	my $type = shift;
305	my $subtype = shift;
306
307	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
308	}
309
310	sub attach_to_objects {
311	_attach @CB_OBJECT, KLASS_OBJECT, @_
312	}
313
314	sub attach_to_players {
315	_attach @CB_PLAYER, KLASS_PLAYER, @_
316	}
317
318	sub attach_to_maps {
319	_attach @CB_MAP, KLASS_MAP, @_
320	}
321
322	sub register_attachment {
323	my $name = shift;	1196	my \$name = shift;
324		1197
325	$attachment{$name} = [[KLASS_OBJECT, @_]];	1198	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		1199	}
		1200	";
		1201	die if $@;
326	}	1202	}
327		1203
328	our $override;	1204	our $override;
329	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1205	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
330		1206
331	sub override {	1207	sub override {
332	$override = 1;	1208	$override = 1;
333	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
334	}	1210	}
335		1211
336	sub do_invoke {	1212	sub do_invoke {
337	my $event = shift;	1213	my $event = shift;
338	my $callbacks = shift;	1214	my $callbacks = shift;
339		1215
340	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
341		1217
342	local $override;	1218	local $override;
343		1219
344	for (@$callbacks) {	1220	for (@$callbacks) {
345	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
346		1222
347	if ($@) {	1223	if ($@) {
348	warn "$@";
349	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
350	override;	1225	override;
351	}	1226	}
352		1227
353	return 1 if $override;	1228	return 1 if $override;
354	}	1229	}
355		1230
356	0	1231	0
357	}	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
		1244	=back
		1245
		1246	=cut
358		1247
359	#############################################################################	1248	#############################################################################
360	# object support	1249	# object support
361		1250
362	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 {
363	my ($obj, $data) = @_;	1285	my ($ob1, $ob2) = @_;
364		1286
365	$data = from_json $data;	1287	++$SLOW_MERGES;#d#
366		1288
367	for (@$data) {	1289	# we do the slow way here
368	my ($name, $args) = @$_;	1290	return _object_equal $ob1, $ob2
369	attach $obj, $name, @{$args || [] };
370	}
371	}	1291	}
372		1292
373	# basically do the same as instantiate, without calling instantiate
374	sub reattach {	1293	sub reattach {
		1294	# basically do the same as instantiate, without calling instantiate
375	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
376	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
377		1301
378	@$registry = ();	1302	@$registry = ();
379		1303
		1304	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		1305
380	for my $name (@{ $obj->{_attachment} }) {	1306	for my $name (keys %{ $obj->{_attachment} || {} }) {
381	if (my $attach = $attachment{$name}) {	1307	if (my $attach = $attachment{$name}) {
382	for (@$attach) {	1308	for (@$attach) {
383	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
384	_attach @$registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
385	}	1311	}
386	} else {	1312	} else {
387	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
388	}	1314	}
		1315	}
		1316	}
		1317
		1318	cf::attachable->attach (
		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	}
389	}	1330	},
390	}	1331	on_reattach => \&reattach,
		1332	on_clone => sub {
		1333	my ($src, $dst) = @_;
		1334
		1335	@{$dst->registry} = @{$src->registry};
		1336
		1337	%$dst = %$src;
		1338
		1339	%{$dst->{_attachment}} = %{$src->{_attachment}}
		1340	if exists $src->{_attachment};
		1341	},
		1342	);
391		1343
392	sub object_freezer_save {	1344	sub object_freezer_save {
393	my ($filename, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
394		1346
395	$filename .= ".pst";	1347	sync_job {
		1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
		1350	trace sprintf "saving %s (%d,%d)\n",
		1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
396		1353
397	if (@$objs) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
398	open my $fh, ">:raw", "$filename~";
399	chmod $fh, SAVE_MODE;	1355	aio_chmod $fh, SAVE_MODE;
400	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1357	if ($cf::USE_FSYNC) {
		1358	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1359	aio_fsync $fh;
		1360	}
401	close $fh;	1361	aio_close $fh;
		1362
		1363	if (@$objs) {
		1364	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1365	aio_chmod $fh, SAVE_MODE;
		1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
		1367	aio_write $fh, 0, (length $data), $data, 0;
		1368	if ($cf::USE_FSYNC) {
		1369	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1370	aio_fsync $fh;
		1371	}
		1372	aio_close $fh;
		1373	aio_rename "$filename.pst~", "$filename.pst";
		1374	}
		1375	} else {
		1376	aio_unlink "$filename.pst";
		1377	}
		1378
402	rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
		1383	} else {
		1384	error "unable to save objects: $filename~: $!\n";
		1385	}
403	} else {	1386	} else {
404	unlink $filename;	1387	aio_unlink $filename;
		1388	aio_unlink "$filename.pst";
		1389	}
405	}	1390	};
		1391	}
		1392
		1393	sub object_freezer_as_string {
		1394	my ($rdata, $objs) = @_;
		1395
		1396	use Data::Dumper;
		1397
		1398	$$rdata . Dumper $objs
406	}	1399	}
407		1400
408	sub object_thawer_load {	1401	sub object_thawer_load {
409	my ($filename) = @_;	1402	my ($filename) = @_;
410		1403
411	open my $fh, "<:raw:perlio", "$filename.pst"	1404	my ($data, $av);
		1405
		1406	(aio_load $filename, $data) >= 0
412	or return;	1407	or return;
413		1408
414	eval { local $/; (Storable::thaw <$fh>)->{objs} }	1409	unless (aio_stat "$filename.pst") {
415	}	1410	(aio_load "$filename.pst", $av) >= 0
		1411	or return;
416		1412
417	attach_to_objects	1413	my $st = eval { Coro::Storable::thaw $av };
418	prio => -1000000,	1414	$av = $st->{objs};
419	on_clone => sub {
420	my ($src, $dst) = @_;
421
422	@{$dst->registry} = @{$src->registry};
423
424	%$dst = %$src;
425
426	$dst->{_attachment} = [@{ $src->{_attachment} }]
427	if exists $src->{_attachment};
428	},	1415	}
429	;	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
430		1430
431	#############################################################################	1431	#############################################################################
432	# old plug-in events	1432	# command handling &c
433		1433
434	sub inject_event {	1434	=item cf::register_command $name => \&callback($ob,$args)
435	my $extension = shift;
436	my $event_code = shift;
437		1435
438	my $cb = $hook[$event_code]{$extension}	1436	Register a callback for execution when the client sends the user command
439	or return;	1437	$name.
440		1438
441	&$cb	1439	=cut
442	}
443
444	sub inject_global_event {
445	my $event = shift;
446
447	my $cb = $hook[$event]
448	or return;
449
450	List::Util::max map &$_, values %$cb
451	}
452
453	sub inject_command {
454	my ($name, $obj, $params) = @_;
455
456	for my $cmd (@{ $command{$name} }) {
457	$cmd->[1]->($obj, $params);
458	}
459
460	-1
461	}
462		1440
463	sub register_command {	1441	sub register_command {
464	my ($name, $time, $cb) = @_;	1442	my ($name, $cb) = @_;
465		1443
466	my $caller = caller;	1444	my $caller = caller;
467	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
468		1446
469	push @{ $command{$name} }, [$time, $cb, $caller];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
470	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
471	}	1448	}
472		1449
		1450	=item cf::register_extcmd $name => \&callback($pl,@args)
		1451
		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.
		1457
		1458	The values will be sent back to the client.
		1459
		1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$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
473	sub register_extcmd {	1482	sub register_extcmd($$) {
474	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
475		1484
476	my $caller = caller;	1485	$EXTCMD{$name} = $cb;
477	#warn "registering extcmd '$name' to '$caller'";
478
479	$extcmd{$name} = [$cb, $caller];
480	}	1486	}
481		1487
482	sub register {	1488	sub register_async_extcmd($$) {
483	my ($base, $pkg) = @_;	1489	my ($name, $cb) = @_;
484		1490
485	#TODO	1491	$EXTACMD{$name} = $cb;
486	}	1492	}
487		1493
488	sub load_extension {	1494	sub register_exticmd($$) {
489	my ($path) = @_;
490
491	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
492	my $base = $1;
493	my $pkg = $1;
494	$pkg =~ s/[^[:word:]]/_/g;
495	$pkg = "ext::$pkg";
496
497	warn "loading '$path' into '$pkg'\n";
498
499	open my $fh, "<:utf8", $path
500	or die "$path: $!";
501
502	my $source =
503	"package $pkg; use strict; use utf8;\n"
504	. "#line 1 \"$path\"\n{\n"
505	. (do { local $/; <$fh> })
506	. "\n};\n1";
507
508	eval $source
509	or die "$path: $@";
510
511	push @exts, $pkg;
512	$ext_pkg{$base} = $pkg;
513
514	# no strict 'refs';
515	# @{"$pkg\::ISA"} = ext::;
516
517	register $base, $pkg;
518	}
519
520	sub unload_extension {
521	my ($pkg) = @_;
522
523	warn "removing extension $pkg\n";
524
525	# remove hooks
526	#TODO
527	# for my $idx (0 .. $#PLUGIN_EVENT) {
528	# delete $hook[$idx]{$pkg};
529	# }
530
531	# remove commands
532	for my $name (keys %command) {
533	my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
534
535	if (@cb) {
536	$command{$name} = \@cb;
537	$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
538	} else {
539	delete $command{$name};
540	delete $COMMAND{"$name\000"};
541	}
542	}
543
544	# remove extcmds
545	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
546	delete $extcmd{$name};
547	}
548
549	if (my $cb = $pkg->can ("unload")) {
550	eval {
551	$cb->($pkg);
552	1
553	} or warn "$pkg unloaded, but with errors: $@";
554	}
555
556	Symbol::delete_package $pkg;
557	}
558
559	sub load_extensions {
560	my $LIBDIR = maps_directory "perl";
561
562	for my $ext (<$LIBDIR/*.ext>) {
563	next unless -r $ext;
564	eval {
565	load_extension $ext;
566	1
567	} or warn "$ext not loaded: $@";
568	}
569	}
570
571	sub _perl_reload(&) {
572	my ($msg) = @_;	1495	my ($name, $cb) = @_;
573		1496
574	$msg->("reloading...");	1497	$EXTICMD{$name} = $cb;
575
576	eval {
577	# 1. cancel all watchers
578	$_->cancel for Event::all_watchers;
579
580	# 2. unload all extensions
581	for (@exts) {
582	$msg->("unloading <$_>");
583	unload_extension $_;
584	}
585
586	# 3. unload all modules loaded from $LIBDIR
587	while (my ($k, $v) = each %INC) {
588	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
589
590	$msg->("removing <$k>");
591	delete $INC{$k};
592
593	$k =~ s/\.pm$//;
594	$k =~ s/\//::/g;
595
596	if (my $cb = $k->can ("unload_module")) {
597	$cb->();
598	}
599
600	Symbol::delete_package $k;
601	}
602
603	# 4. get rid of safe::, as good as possible
604	Symbol::delete_package "safe::$_"
605	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
606
607	# 5. remove register_script_function callbacks
608	# TODO
609
610	# 6. unload cf.pm "a bit"
611	delete $INC{"cf.pm"};
612
613	# don't, removes xs symbols, too,
614	# and global variables created in xs
615	#Symbol::delete_package __PACKAGE__;
616
617	# 7. reload cf.pm
618	$msg->("reloading cf.pm");
619	require cf;
620	};
621	$msg->($@) if $@;
622
623	$msg->("reloaded");
624	};
625
626	sub perl_reload() {
627	_perl_reload {
628	warn $_[0];
629	print "$_[0]\n";
630	};
631	}	1498	}
632		1499
633	register_command "perl-reload", 0, sub {	1500	sub register_async_exticmd($$) {
634	my ($who, $arg) = @_;	1501	my ($name, $cb) = @_;
635		1502
636	if ($who->flag (FLAG_WIZ)) {	1503	$EXTIACMD{$name} = $cb;
637	_perl_reload {	1504	}
638	warn $_[0];	1505
639	$who->message ($_[0]);	1506	use File::Glob ();
		1507
		1508	cf::player->attach (
		1509	on_unknown_command => sub {
		1510	my ($pl, $name, $params) = @_;
		1511
		1512	my $cb = $COMMAND{$name}
		1513	or return;
		1514
		1515	for my $cmd (@$cb) {
		1516	$cmd->[1]->($pl->ob, $params);
640	};	1517	}
		1518
		1519	cf::override;
641	}	1520	},
642	};
643
644	#############################################################################
645	# extcmd framework, basically convert ext <msg>
646	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
647
648	attach_to_players
649	on_extcmd => sub {	1521	on_extcmd => sub {
650	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
651		1523
652	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
653		1525
654	if (ref $msg) {	1526	if (ref $msg) {
655	if (my $cb = $extcmd{$msg->{msgtype}}) {	1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
656	if (my %reply = $cb->[0]->($pl, $msg)) {	1528
657	$pl->ext_reply ($msg->{msgid}, %reply);	1529	if (my $cb = $EXTACMD{$type}) {
		1530	$cb->(
		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 $active;
658	}	1663	}
659	}	1664	}
660	} else {	1665
661	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1666	unless ($progress) {
		1667	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1668
		1669	while (my ($k, $v) = each %todo) {
		1670	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1671	if exists $v->{meta}{mandatory};
		1672	}
		1673
		1674	last;
662	}	1675	}
663		1676	}
664	cf::override;
665	},	1677	};
666	;	1678	}
667		1679
668	#############################################################################	1680	#############################################################################
669	# load/save/clean perl data associated with a map
670		1681
671	*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($) {
672	my ($map) = @_;	1736	my ($login) = @_;
673		1737
674	my $path = $map->tmpname;	1738	$cf::PLAYER{$login}
675	defined $path or return;	1739	or !aio_stat path $login
676
677	unlink "$path.cfperl";
678	unlink "$path.pst";
679	};
680
681	*cf::mapsupport::on_swapin =
682	*cf::mapsupport::on_load = sub {
683	my ($map) = @_;
684
685	my $path = $map->tmpname;
686	$path = $map->path unless defined $path;
687
688	open my $fh, "<:raw", "$path.cfperl"
689	or return; # no perl data
690
691	my $data = Storable::thaw do { local $/; <$fh> };
692
693	$data->{version} <= 1
694	or return; # too new
695
696	$map->_set_obs ($data->{obs});
697	};
698
699	attach_to_maps prio => -10000, package => cf::mapsupport::;
700
701	#############################################################################
702	# load/save perl data associated with player->ob objects
703
704	sub all_objects(@) {
705	@_, map all_objects ($_->inv), @_
706	}	1740	}
707		1741
708	attach_to_players	1742	sub find($) {
		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} = $pl
		1765	}
		1766	}
		1767	}
		1768
		1769	cf::player->attach (
709	on_load => sub {	1770	on_load => sub {
710	my ($pl, $path) = @_;	1771	my ($pl, $path) = @_;
711		1772
712	for my $o (all_objects $pl->ob) {	1773	# restore slots saved in save, below
713	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1774	my $slots = delete $pl->{_slots};
714	$o->set_ob_key_value ("_perl_data");
715		1775
716	%$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	}
717	}	2302	}
		2303
		2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
718	}	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);
719	},	2329	}
720	;
721		2330
722	#############################################################################	2331	$self->post_load;
723	# core extensions - in perl
724		2332
725	=item cf::player::exists $login	2333	1
726
727	Returns true when the given account exists.
728
729	=cut
730
731	sub cf::player::exists($) {
732	cf::player::find $_[0]
733	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
734	}	2334	}
735		2335
		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;
		2630
		2631	=over 4
		2632
		2633	=item $ob->inv_recursive
		2634
		2635	Returns the inventory of the object I<and> their inventories, recursively,
		2636	but I<not> the object itself.
		2637
		2638	=cut
		2639
		2640	sub inv_recursive_;
		2641	sub inv_recursive_ {
		2642	map { $_, inv_recursive_ $_->inv } @_
		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
		2684
736	=item $player->reply ($npc, $msg[, $flags])	2685	=item $player_object->reply ($npc, $msg[, $flags])
737		2686
738	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>
739	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
740	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
741		2690
742	=cut	2691	=cut
743		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
744	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
745	# with dialog boxes.	2708	# with dialog boxes.
		2709	#TODO: the first argument must go, split into a $npc->reply_to ( method
746	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
747	my ($self, $npc, $msg, $flags) = @_;	2711	my ($self, $npc, $msg, $flags) = @_;
748		2712
749	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
750		2714
751	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
752	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
753	} 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 {
754	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
755	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
		2729	}
		2730	}
		2731
		2732	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2733
		2734	=cut
		2735
		2736	sub cf::object::send_msg {
		2737	my $pl = shift->contr
		2738	or return;
		2739	$pl->send_msg (@_);
		2740	}
		2741
		2742	=item $player_object->may ("access")
		2743
		2744	Returns wether the given player is authorized to access resource "access"
		2745	(e.g. "command_wizcast").
		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
		2772	=cut
		2773
		2774	sub cf::object::player::may {
		2775	my ($self, $access) = @_;
		2776
		2777	$self->flag (cf::FLAG_WIZ) ||
		2778	(ref $cf::CFG{"may_$access"}
		2779	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
		2780	: $cf::CFG{"may_$access"})
		2781	}
		2782
		2783	=item $player_object->enter_link
		2784
		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,
756	}	2966	};
757	}
758		2967
759	=item $player->ext_reply ($msgid, $msgtype, %msg)	2968	for (split /\n/, $spec) {
		2969	my ($k, $v) = split /\s+/, $_, 2;
760		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
761	Sends an ext reply to the player.	3273	Sends an ext event to the client.
762		3274
763	=cut	3275	=cut
764		3276
765	sub cf::player::ext_reply($$$%) {	3277	sub cf::client::ext_msg($$@) {
766	my ($self, $id, %msg) = @_;	3278	my ($self, $type, @msg) = @_;
767		3279
768	$msg{msgid} = $id;	3280	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
769
770	$self->send ("ext " . to_json \%msg);
771	}	3281	}
772		3282
773	#############################################################################	3283	=item $success = $client->query ($flags, "text", \&cb)
774	# map scripting support	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
		3445
		3446	=head2 SAFE SCRIPTING
		3447
		3448	Functions that provide a safe environment to compile and execute
		3449	snippets of perl code without them endangering the safety of the server
		3450	itself. Looping constructs, I/O operators and other built-in functionality
		3451	is not available in the safe scripting environment, and the number of
		3452	functions and methods that can be called is greatly reduced.
		3453
		3454	=cut
775		3455
776	our $safe = new Safe "safe";	3456	our $safe = new Safe "safe";
777	our $safe_hole = new Safe::Hole;	3457	our $safe_hole = new Safe::Hole;
778		3458
779	$SIG{FPE} = 'IGNORE';	3459	$SIG{FPE} = 'IGNORE';
780		3460
781	$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	));
782		3466
783	# here we export the classes and methods available to script code	3467	# here we export the classes and methods available to script code
784		3468
		3469	=pod
		3470
		3471	The following functions and methods are available within a safe environment:
		3472
		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
		3478	cf::object::player
		3479	player
		3480
		3481	cf::player
		3482	peaceful
		3483
		3484	cf::map
		3485	trigger
		3486
		3487	=cut
		3488
785	for (	3489	for (
786	["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)],
787	["cf::object::player" => qw(player)],	3493	["cf::object::player" => qw(player)],
788	["cf::player" => qw(peaceful)],	3494	["cf::player" => qw(peaceful send_msg)],
		3495	["cf::map" => qw(trigger)],
789	) {	3496	) {
790	no strict 'refs';
791	my ($pkg, @funs) = @$_;	3497	my ($pkg, @funs) = @$_;
792	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3498	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
793	for @funs;	3499	for @funs;
794	}	3500	}
795		3501
		3502	=over 4
		3503
		3504	=item @retval = safe_eval $code, [var => value, ...]
		3505
		3506	Compiled and executes the given perl code snippet. additional var/value
		3507	pairs result in temporary local (my) scalar variables of the given name
		3508	that are available in the code snippet. Example:
		3509
		3510	my $five = safe_eval '$first + $second', first => 1, second => 4;
		3511
		3512	=cut
		3513
796	sub safe_eval($;@) {	3514	sub safe_eval($;@) {
797	my ($code, %vars) = @_;	3515	my ($code, %vars) = @_;
798		3516
799	my $qcode = $code;	3517	my $qcode = $code;
800	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3518	$qcode =~ s/"/‟/g; # not allowed in #line filenames
801	$qcode =~ s/\n/\\n/g;	3519	$qcode =~ s/\n/\\n/g;
802		3520
		3521	%vars = (_dummy => 0) unless %vars;
		3522
		3523	my @res;
803	local $_;	3524	local $_;
804	local @safe::cf::_safe_eval_args = values %vars;
805		3525
806	my $eval =	3526	my $eval =
807	"do {\n"	3527	"do {\n"
808	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3528	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
809	. "#line 0 \"{$qcode}\"\n"	3529	. "#line 0 \"{$qcode}\"\n"
810	. $code	3530	. $code
811	. "\n}"	3531	. "\n}"
812	;	3532	;
813		3533
		3534	if ($CFG{safe_eval}) {
814	sub_generation_inc;	3535	sub_generation_inc;
		3536	local @safe::cf::_safe_eval_args = values %vars;
815	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3537	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
816	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	}
817		3543
818	if ($@) {	3544	if ($@) {
819	warn "$@";	3545	warn "$@",
820	warn "while executing safe code '$code'\n";	3546	"while executing safe code '$code'\n",
821	warn "with arguments " . (join " ", %vars) . "\n";	3547	"with arguments " . (join " ", %vars) . "\n";
822	}	3548	}
823		3549
824	wantarray ? @res : $res[0]	3550	wantarray ? @res : $res[0]
825	}	3551	}
		3552
		3553	=item cf::register_script_function $function => $cb
		3554
		3555	Register a function that can be called from within map/npc scripts. The
		3556	function should be reasonably secure and should be put into a package name
		3557	like the extension.
		3558
		3559	Example: register a function that gets called whenever a map script calls
		3560	C<rent::overview>, as used by the C<rent> extension.
		3561
		3562	cf::register_script_function "rent::overview" => sub {
		3563	...
		3564	};
		3565
		3566	=cut
826		3567
827	sub register_script_function {	3568	sub register_script_function {
828	my ($fun, $cb) = @_;	3569	my ($fun, $cb) = @_;
829		3570
830	no strict 'refs';	3571	$fun = "safe::$fun" if $CFG{safe_eval};
831	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3572	*$fun = $safe_hole->wrap ($cb);
832	}	3573	}
		3574
		3575	=back
		3576
		3577	=cut
833		3578
834	#############################################################################	3579	#############################################################################
835	# the server's main()	3580	# the server's init and main functions
		3581
		3582	{
		3583	package cf::face;
		3584
		3585	our %HASH; # hash => idx
		3586	our @DATA; # dynamically-created facedata, only faceste 0 used
		3587	our @FOFS; # file offset, if > 0
		3588	our @SIZE; # size of face, in octets
		3589	our @META; # meta hash of face, if any
		3590	our $DATAFH; # facedata filehandle
		3591
		3592	# internal api, not finalised
		3593	sub set {
		3594	my ($name, $type, $data) = @_;
		3595
		3596	my $idx = cf::face::find $name;
		3597
		3598	if ($idx) {
		3599	delete $HASH{cf::face::get_csum $idx};
		3600	} else {
		3601	$idx = cf::face::alloc $name;
		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::loop starting\n";
		3921	if (1) {
		3922	EV::loop;
		3923	}
		3924	trace "EV::loop returned\n";
		3925	goto &main_loop unless $REALLY_UNLOOP;
		3926	}
836		3927
837	sub main {	3928	sub main {
838	Event::loop;	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::loop EV::LOOP_ONESHOT;
		3944	})->prio (Coro::PRIO_MAX);
		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;
839	}	3990	}
840		3991
841	#############################################################################	3992	#############################################################################
842	# initialisation	3993	# initialisation and cleanup
843		3994
844	register "<global>", __PACKAGE__;	3995	# install some emergency cleanup handlers
845		3996	BEGIN {
846	unshift @INC, $LIBDIR;	3997	our %SIGWATCHER = ();
847		3998	for my $signal (qw(INT HUP TERM)) {
848	load_extensions;	3999	$SIGWATCHER{$signal} = AE::signal $signal, sub {
849		4000	cf::cleanup "SIG$signal";
850	$TICK_WATCHER = Event->timer (	4001	};
851	prio => 1,
852	at => $NEXT_TICK || 1,
853	cb => sub {
854	cf::server_tick; # one server iteration
855
856	my $NOW = Event::time;
857	$NEXT_TICK += $TICK;
858
859	# if we are delayed by four ticks, skip them all
860	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
861
862	$TICK_WATCHER->at ($NEXT_TICK);
863	$TICK_WATCHER->start;
864	},	4002	}
865	);	4003	}
866		4004
867	_reload_2;	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
		4016	or return;
		4017
		4018	my $value = $cf::RUNTIME + 90 + 10;
		4019	# 10 is the runtime save interval, for a monotonic clock
		4020	# 60 allows for the watchdog to kill the server.
		4021
		4022	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4023	and return;
		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";
		4283	cf::load_extensions;
		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	};
		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	};
		4338
		4339	#############################################################################
		4340
		4341	my $bug_warning = 0;
		4342
		4343	sub wait_for_tick() {
		4344	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4345
		4346	$WAIT_FOR_TICK->wait;
		4347	}
		4348
		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: $!";
		4374	};
		4375	}
		4376
		4377	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4378	$sig->send;
		4379	}
		4380	$WAIT_FOR_TICK->broadcast;
		4381
		4382	$LOAD = ($NOW - $TICK_START) / $TICK;
		4383	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4384
		4385	if (0) {
		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	}
		4393
		4394	{
		4395	# configure BDB
		4396	info "initialising database";
		4397
		4398	BDB::min_parallel 16;
		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 $!;
		4420	};
		4421
		4422	cf::cleanup "db_env_open(db): $@" if $@;
		4423	};
		4424	}
		4425
		4426	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4427	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4428	};
		4429	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4430	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4431	};
		4432	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4433	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4434	};
		4435
		4436	info "database initialised";
		4437	}
		4438
		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 {
		4453	my ($msg, @addr) = @_;
		4454
		4455	$msg =~ s/\n$//;
		4456
		4457	if ($_log_backtrace_last eq $msg) {
		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;
		4489	};
		4490	} else {
		4491	LOG llevInfo, "[ABT] $msg\n";
		4492	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4493	}
		4494	}
		4495
		4496	# load additional modules
		4497	require "cf/$_.pm" for @EXTRA_MODULES;
		4498	cf::_connect_to_perl_2;
		4499
		4500	END { cf::emergency_save }
868		4501
869	1	4502	1
870		4503

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