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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.101 by root, Mon Dec 25 14:43:23 2006 UTC vs.
Revision 1.503 by root, Sat Jan 30 23:46:39 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 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;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro;	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
		50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
18		54
19	use IO::AIO 2.3;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
		58	use Fcntl;
20	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
21	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
22		64
23	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
24		66
25	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
26	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
27		71
28	$Coro::main->prio (Coro::PRIO_MIN);	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
29		80
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		82
32	our %COMMAND = ();	83	our %COMMAND = ();
33	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
34	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
35		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
36	our @EVENT;	93	our @EVENT;
37	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
38		96
39	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
40	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	115	our $NEXT_TICK;
		116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
42		124
43	our %CFG;	125	our %CFG;
44		126
45	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
		128	our $RUNTIME;
		129	our $NOW;
		130
		131	our (%PLAYER, %PLAYER_LOADING); # all users
		132	our (%MAP, %MAP_LOADING ); # all maps
		133	our $LINK_MAP; # the special {link} map, which is always available
		134
		135	# used to convert map paths into valid unix filenames by replacing / by ∕
		136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
		147
		148	binmode STDOUT;
		149	binmode STDERR;
		150
		151	# read virtual server time, if available
		152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
		153	open my $fh, "<", $RUNTIMEFILE
		154	or die "unable to read $RUNTIMEFILE file: $!";
		155	$RUNTIME = <$fh> + 0.;
		156	}
		157
		158	eval "sub TICK() { $TICK } 1" or die;
		159
		160	mkdir $_
		161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		162
		163	our $EMERGENCY_POSITION;
		164
		165	sub cf::map::normalise;
46		166
47	#############################################################################	167	#############################################################################
48		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		177
		178	#############################################################################
		179
49	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
50		181
51	=over 4	182	=over 4
52		183
53	=item $cf::UPTIME	184	=item $cf::UPTIME
54		185
55	The timestamp of the server start (so not actually an uptime).	186	The timestamp of the server start (so not actually an uptime).
56		187
57	=item $cf::LIBDIR	188	=item $cf::RUNTIME
58		189
59	The perl library directory, where extensions and cf-specific modules can	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
60	be found. It will be added to C<@INC> automatically.	191	every server tick.
		192
		193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		196
		197	Various directories - "/etc", read-only install directory, perl-library
		198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
		201
		202	=item $cf::NOW
		203
		204	The time of the last (current) server tick.
61		205
62	=item $cf::TICK	206	=item $cf::TICK
63		207
64	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
65		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
66	=item %cf::CFG	220	=item %cf::CFG
67		221
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
69	from wherever your confdir points to.	223	from wherever your confdir points to.
70		224
		225	=item cf::wait_for_tick, cf::wait_for_tick_begin
		226
		227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		228	returns directly I<after> the tick processing (and consequently, can only wake one process
		229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
71	=back	243	=back
72		244
73	=cut	245	=cut
74		246
75	BEGIN {	247	$Coro::State::WARNHOOK = sub {
76	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	248	my $msg = join "", @_;
		249
78	$msg .= "\n"	250	$msg .= "\n"
79	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
80		252
81	print STDERR "cfperl: $msg";	253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
82	LOG llevError, "cfperl: $msg";	255	LOG llevError, $msg;
83	};	256	};
84	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
85		271
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
88	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
89	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
90	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
91	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
92		279
93	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
94	# within the Safe compartment.	281	# within the Safe compartment.
95	for my $pkg (qw(	282	for my $pkg (qw(
96	cf::global cf::attachable	283	cf::global cf::attachable
97	cf::object cf::object::player	284	cf::object cf::object::player
98	cf::client cf::player	285	cf::client cf::player
99	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
100	cf::map cf::party cf::region	288	cf::party cf::region
101	)) {	289	)) {
102	no strict 'refs';
103	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
104	}	291	}
105		292
106	$Event::DIED = sub {	293	$EV::DIED = sub {
107	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
108	};	295	};
109		296
110	my %ext_pkg;	297	#############################################################################
111	my @exts;
112	my @hook;
113		298
114	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
115		300
116	=over 4	301	=over 4
117		302
118	=cut	303	=item dumpval $ref
119		304
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	305	=cut
121		306
		307	sub dumpval {
		308	eval {
		309	local $SIG{__DIE__};
		310	my $d;
		311	if (1) {
		312	$d = new Data::Dumper([$_[0]], ["*var"]);
		313	$d->Terse(1);
		314	$d->Indent(2);
		315	$d->Quotekeys(0);
		316	$d->Useqq(1);
		317	#$d->Bless(...);
		318	$d->Seen($_[1]) if @_ > 1;
		319	$d = $d->Dump();
		320	}
		321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		322	$d
		323	} || "[unable to dump $_[0]: '$@']";
		324	}
		325
122	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
123		327
124	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
125		329
126	=cut
127
128	sub from_json($) {
129	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
130	JSON::Syck::Load $_[0]
131	}
132
133	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
134		331
135	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
136		333
137	=cut	334	=cut
138		335
139	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
141	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
		353	}
		354
		355	=item cf::lock_wait $string
		356
		357	Wait until the given lock is available. See cf::lock_acquire.
		358
		359	=item my $lock = cf::lock_acquire $string
		360
		361	Wait until the given lock is available and then acquires it and returns
		362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		363	for example when the coroutine gets canceled), the lock is automatically
		364	returned.
		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
		369	Lock names should begin with a unique identifier (for example, cf::map::find
		370	uses map_find and cf::map::load uses map_load).
		371
		372	=item $locked = cf::lock_active $string
		373
		374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
		379
		380	sub lock_wait($) {
		381	$LOCKS->wait ($_[0]);
		382	}
		383
		384	sub lock_acquire($) {
		385	$LOCKS->guard ($_[0])
		386	}
		387
		388	sub lock_active($) {
		389	$LOCKS->count ($_[0]) < 1
		390	}
		391
		392	sub freeze_mainloop {
		393	tick_inhibit_inc;
		394
		395	&Guard::guard (\&tick_inhibit_dec);
		396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
		462	}
		463	};
		464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
		478	}
		479
		480	=item cf::async { BLOCK }
		481
		482	Currently the same as Coro::async_pool, meaning you cannot use
		483	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		484	thing you are allowed to do is call C<prio> on it.
		485
		486	=cut
		487
		488	BEGIN { *async = \&Coro::async_pool }
		489
		490	=item cf::sync_job { BLOCK }
		491
		492	The design of Deliantra requires that the main coroutine ($Coro::main)
		493	is always able to handle events or runnable, as Deliantra is only
		494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
		496
		497	If it must be done, put the blocking parts into C<sync_job>. This will run
		498	the given BLOCK in another coroutine while waiting for the result. The
		499	server will be frozen during this time, so the block should either finish
		500	fast or be very important.
		501
		502	=cut
		503
		504	sub sync_job(&) {
		505	my ($job) = @_;
		506
		507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
		510	# this is the main coro, too bad, we have to block
		511	# till the operation succeeds, freezing the server :/
		512
		513	LOG llevError, Carp::longmess "sync job";#d#
		514
		515	my $freeze_guard = freeze_mainloop;
		516
		517	my $busy = 1;
		518	my @res;
		519
		520	(async {
		521	$Coro::current->desc ("sync job coro");
		522	@res = eval { $job->() };
		523	warn $@ if $@;
		524	undef $busy;
		525	})->prio (Coro::PRIO_MAX);
		526
		527	while ($busy) {
		528	if (Coro::nready) {
		529	Coro::cede_notself;
		530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
		532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
		538
		539	wantarray ? @res : $res[0]
		540	} else {
		541	# we are in another coroutine, how wonderful, everything just works
		542
		543	$job->()
		544	}
		545	}
		546
		547	=item $coro = cf::async_ext { BLOCK }
		548
		549	Like async, but this coro is automatically being canceled when the
		550	extension calling this is being unloaded.
		551
		552	=cut
		553
		554	sub async_ext(&) {
		555	my $cb = shift;
		556
		557	my $coro = &Coro::async ($cb);
		558
		559	$coro->on_destroy (sub {
		560	delete $EXT_CORO{$coro+0};
		561	});
		562	$EXT_CORO{$coro+0} = $coro;
		563
		564	$coro
		565	}
		566
		567	=item fork_call { }, $args
		568
		569	Executes the given code block with the given arguments in a seperate
		570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
		573
		574	=cut
		575
		576	sub fork_call(&@) {
		577	my ($cb, @args) = @_;
		578
		579	# we seemingly have to make a local copy of the whole thing,
		580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
		582
		583	my @res = Coro::Util::fork_eval {
		584	reset_signals;
		585	&$cb
		586	}, @args;
		587
		588	wantarray ? @res : $res[-1]
		589	}
		590
		591	=item $coin = coin_from_name $name
		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
		667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
		743	}
		744
		745	=item cf::datalog type => key => value, ...
		746
		747	Log a datalog packet of the given type with the given key-value pairs.
		748
		749	=cut
		750
		751	sub datalog($@) {
		752	my ($type, %kv) = @_;
		753	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
142	}	754	}
143		755
144	=back	756	=back
145		757
146	=cut	758	=cut
147		759
148	#############################################################################	760	#############################################################################
149		761
150	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
151		763
152	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
153	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
154	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
155		767
156	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
157	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
158	crossfire+).	770	Deliantra).
159		771
160	=over 4	772	=over 4
161		773
162	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
163		775
…		…
207	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
208		820
209	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
210	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
211		823
212	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
213	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
214		826
215	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
216		828
217	=over 4	829	=over 4
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	889	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	890	our @CB_MAP = ();
279		891
280	my %attachment;	892	my %attachment;
281		893
		894	sub cf::attachable::thawer_merge {
		895	# simply override everything except _meta
		896	local $_[0]{_meta};
		897	%{$_[0]} = %{$_[1]};
		898	}
		899
282	sub _attach_cb($$$$) {	900	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	901	my ($registry, $event, $prio, $cb) = @_;
284		902
285	use sort 'stable';	903	use sort 'stable';
286		904
…		…
320	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
321		939
322	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
323	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
324	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
325	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
326		944
327	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
328	my $pkg = shift @arg;	946	my $pkg = shift @arg;
329		947
330	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
359	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
360	}	978	}
361		979
362	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
363	} else {	981	} else {
364	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
365	}	983	}
366		984
367	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
368	}	986	}
369		987
…		…
371	if (ref $_[0]) {	989	if (ref $_[0]) {
372	_object_attach @_;	990	_object_attach @_;
373	} else {	991	} else {
374	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
375	}	993	}
		994	_recalc_want;
376	};	995	};
377		996
378	# all those should be optimised	997	# all those should be optimised
379	sub cf::attachable::detach {	998	sub cf::attachable::detach {
380	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
383	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
384	reattach ($obj);	1003	reattach ($obj);
385	} else {	1004	} else {
386	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
387	}	1006	}
		1007	_recalc_want;
388	};	1008	};
389		1009
390	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
391	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
392		1012
…		…
407	";	1027	";
408	die if $@;	1028	die if $@;
409	}	1029	}
410		1030
411	our $override;	1031	our $override;
412	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
413		1033
414	sub override {	1034	sub override {
415	$override = 1;	1035	$override = 1;
416	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
417	}	1037	}
418		1038
419	sub do_invoke {	1039	sub do_invoke {
420	my $event = shift;	1040	my $event = shift;
421	my $callbacks = shift;	1041	my $callbacks = shift;
422		1042
423	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
424		1044
425	local $override;	1045	local $override;
426		1046
427	for (@$callbacks) {	1047	for (@$callbacks) {
428	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
437	}	1057	}
438		1058
439	0	1059	0
440	}	1060	}
441		1061
442	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
443		1063
444	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
445		1065
446	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
447		1067
448	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
449	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
450	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
451		1071
452	=back	1072	=back
453		1073
454	=cut	1074	=cut
455		1075
456	#############################################################################	1076	#############################################################################
457	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
		1120
		1121	sub reattach {
		1122	# basically do the same as instantiate, without calling instantiate
		1123	my ($obj) = @_;
		1124
		1125	# no longer needed after getting rid of delete_package?
		1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		1127
		1128	my $registry = $obj->registry;
		1129
		1130	@$registry = ();
		1131
		1132	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		1133
		1134	for my $name (keys %{ $obj->{_attachment} || {} }) {
		1135	if (my $attach = $attachment{$name}) {
		1136	for (@$attach) {
		1137	my ($klass, @attach) = @$_;
		1138	_attach $registry, $klass, @attach;
		1139	}
		1140	} else {
		1141	warn "object uses attachment '$name' that is not available, postponing.\n";
		1142	}
		1143	}
		1144	}
458		1145
459	cf::attachable->attach (	1146	cf::attachable->attach (
460	prio => -1000000,	1147	prio => -1000000,
461	on_instantiate => sub {	1148	on_instantiate => sub {
462	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
463		1150
464	$data = from_json $data;	1151	$data = decode_json $data;
465		1152
466	for (@$data) {	1153	for (@$data) {
467	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
468		1155
469	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
470	}	1157	}
471	},	1158	},
472	on_reattach => sub {	1159	on_reattach => \&reattach,
473	# basically do the same as instantiate, without calling instantiate
474	my ($obj) = @_;
475	my $registry = $obj->registry;
476
477	@$registry = ();
478
479	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
480
481	for my $name (keys %{ $obj->{_attachment} || {} }) {
482	if (my $attach = $attachment{$name}) {
483	for (@$attach) {
484	my ($klass, @attach) = @$_;
485	_attach $registry, $klass, @attach;
486	}
487	} else {
488	warn "object uses attachment '$name' that is not available, postponing.\n";
489	}
490	}
491	},
492	on_clone => sub {	1160	on_clone => sub {
493	my ($src, $dst) = @_;	1161	my ($src, $dst) = @_;
494		1162
495	@{$dst->registry} = @{$src->registry};	1163	@{$dst->registry} = @{$src->registry};
496		1164
…		…
502	);	1170	);
503		1171
504	sub object_freezer_save {	1172	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
506		1174
		1175	sync_job {
507	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
508	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
510		1180
511	if (open my $fh, ">:raw", "$filename~") {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1184	if ($cf::USE_FSYNC) {
		1185	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;
		1186	aio_fsync $fh;
		1187	}
519	close $fh;	1188	aio_close $fh;
		1189
		1190	if (@$objs) {
		1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1192	aio_chmod $fh, SAVE_MODE;
		1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
		1194	aio_write $fh, 0, (length $data), $data, 0;
		1195	if ($cf::USE_FSYNC) {
		1196	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;
		1197	aio_fsync $fh;
		1198	}
		1199	aio_close $fh;
520	rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
		1201	}
		1202	} else {
		1203	aio_unlink "$filename.pst";
		1204	}
		1205
		1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
521	} else {	1210	} else {
522	unlink "$filename.pst";	1211	warn "unable to save objects: $filename~: $!\n";
523	}	1212	}
524
525	rename "$filename~", $filename;
526	} else {	1213	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	1214	aio_unlink $filename;
531	unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
		1216	}
532	}	1217	};
533	}	1218	}
534		1219
535	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
537		1222
…		…
541	}	1226	}
542		1227
543	sub object_thawer_load {	1228	sub object_thawer_load {
544	my ($filename) = @_;	1229	my ($filename) = @_;
545		1230
546	local $/;
547
548	my $av;
549
550	#TODO: use sysread etc.
551	if (open my $data, "<:raw:perlio", $filename) {
552	$data = <$data>;
553	if (open my $pst, "<:raw:perlio", "$filename.pst") {
554	$av = eval { (Storable::thaw <$pst>)->{objs} };
555	}
556	return ($data, $av);	1231	my ($data, $av);
557	}
558		1232
559	()	1233	(aio_load $filename, $data) >= 0
		1234	or return;
		1235
		1236	unless (aio_stat "$filename.pst") {
		1237	(aio_load "$filename.pst", $av) >= 0
		1238	or return;
		1239
		1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
		1242	}
		1243
		1244	utf8::decode (my $decname = $filename);
		1245	warn sprintf "loading %s (%d,%d)\n",
		1246	$decname, length $data, scalar @{$av || []};
		1247
		1248	($data, $av)
560	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
561		1256
562	#############################################################################	1257	#############################################################################
563	# command handling &c	1258	# command handling &c
564		1259
565	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
578	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
579	}	1274	}
580		1275
581	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
582		1277
583	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
584		1283
585	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
586	called.	1285	called.
587		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
588	=cut	1298	=cut
589		1299
590	sub register_extcmd {	1300	sub register_extcmd {
591	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
592		1302
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	1303	$EXTCMD{$name} = $cb;
597	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
598		1313
599	cf::player->attach (	1314	cf::player->attach (
600	on_command => sub {	1315	on_command => sub {
601	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
602		1317
…		…
610	cf::override;	1325	cf::override;
611	},	1326	},
612	on_extcmd => sub {	1327	on_extcmd => sub {
613	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
614		1329
615	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
616		1331
617	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
620	$pl->ext_reply ($msg->{msgid}, %reply);
621	}
622	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
623	} else {	1347	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
625	}	1349	}
626		1350
627	cf::override;	1351	cf::override;
628	},	1352	},
629	);	1353	);
630		1354
		1355	# "readahead" all extensions
		1356	sub cache_extensions {
		1357	my $grp = IO::AIO::aio_group;
		1358
		1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
		1360	for (grep /\.ext$/, @{$_[0]}) {
		1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1362	}
		1363	};
		1364
		1365	$grp
		1366	}
		1367
		1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
		1372	for my $path (<$LIBDIR/*.ext>) {
		1373	next unless -r $path;
		1374
		1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my %done;
		1405	while (%todo) {
		1406	my $progress;
		1407
		1408	while (my ($k, $v) = each %todo) {
		1409	for (split /,\s*/, $v->{meta}{depends}) {
		1410	goto skip
		1411	unless exists $done{$_};
		1412	}
		1413
		1414	warn "... loading '$k' into '$v->{pkg}'\n";
		1415
		1416	unless (eval $v->{source}) {
		1417	my $msg = $@ ? "$v->{path}: $@\n"
		1418	: "$v->{base}: extension inactive.\n";
		1419
		1420	if (exists $v->{meta}{mandatory}) {
		1421	warn $msg;
		1422	cf::cleanup "mandatory extension failed to load, exiting.";
		1423	}
		1424
		1425	warn $msg;
		1426	}
		1427
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431	}
		1432
		1433	skip:
		1434	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1435	unless $progress;
		1436	}
		1437	};
		1438	}
		1439
		1440	#############################################################################
		1441
		1442	=back
		1443
		1444	=head2 CORE EXTENSIONS
		1445
		1446	Functions and methods that extend core deliantra objects.
		1447
		1448	=cut
		1449
		1450	package cf::player;
		1451
		1452	use Coro::AIO;
		1453
		1454	=head3 cf::player
		1455
		1456	=over 4
		1457
		1458	=item cf::player::num_playing
		1459
		1460	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1461
		1462	=cut
		1463
		1464	sub num_playing {
		1465	scalar grep
		1466	$_->ob->map
		1467	&& !$_->hidden
		1468	&& !$_->ob->flag (cf::FLAG_WIZ),
		1469	cf::player::list
		1470	}
		1471
		1472	=item cf::player::find $login
		1473
		1474	Returns the given player object, loading it if necessary (might block).
		1475
		1476	=cut
		1477
		1478	sub playerdir($) {
		1479	"$PLAYERDIR/"
		1480	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1481	}
		1482
		1483	sub path($) {
		1484	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1485
		1486	(playerdir $login) . "/playerdata"
		1487	}
		1488
		1489	sub find_active($) {
		1490	$cf::PLAYER{$_[0]}
		1491	and $cf::PLAYER{$_[0]}->active
		1492	and $cf::PLAYER{$_[0]}
		1493	}
		1494
		1495	sub exists($) {
		1496	my ($login) = @_;
		1497
		1498	$cf::PLAYER{$login}
		1499	or !aio_stat path $login
		1500	}
		1501
		1502	sub find($) {
		1503	return $cf::PLAYER{$_[0]} || do {
		1504	my $login = $_[0];
		1505
		1506	my $guard = cf::lock_acquire "user_find:$login";
		1507
		1508	$cf::PLAYER{$_[0]} || do {
		1509	# rename old playerfiles to new ones
		1510	#TODO: remove when no longer required
		1511	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1512	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1513	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1514	aio_unlink +(playerdir $login) . "/$login.pl";
		1515
		1516	my $f = new_from_file cf::object::thawer path $login
		1517	or return;
		1518
		1519	my $pl = cf::player::load_pl $f
		1520	or return;
		1521
		1522	local $cf::PLAYER_LOADING{$login} = $pl;
		1523	$f->resolve_delayed_derefs;
		1524	$cf::PLAYER{$login} = $pl
		1525	}
		1526	}
		1527	}
		1528
		1529	sub save($) {
		1530	my ($pl) = @_;
		1531
		1532	return if $pl->{deny_save};
		1533
		1534	my $path = path $pl;
		1535	my $guard = cf::lock_acquire "user_save:$path";
		1536
		1537	return if $pl->{deny_save};
		1538
		1539	aio_mkdir playerdir $pl, 0770;
		1540	$pl->{last_save} = $cf::RUNTIME;
		1541
		1542	cf::get_slot 0.01;
		1543
		1544	$pl->save_pl ($path);
		1545	cf::cede_to_tick;
		1546	}
		1547
		1548	sub new($) {
		1549	my ($login) = @_;
		1550
		1551	my $self = create;
		1552
		1553	$self->ob->name ($login);
		1554	$self->{deny_save} = 1;
		1555
		1556	$cf::PLAYER{$login} = $self;
		1557
		1558	$self
		1559	}
		1560
		1561	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1562
		1563	=cut
		1564
		1565	sub send_msg {
		1566	my $ns = shift->ns
		1567	or return;
		1568	$ns->send_msg (@_);
		1569	}
		1570
		1571	=item $pl->quit_character
		1572
		1573	Nukes the player without looking back. If logged in, the connection will
		1574	be destroyed. May block for a long time.
		1575
		1576	=cut
		1577
		1578	sub quit_character {
		1579	my ($pl) = @_;
		1580
		1581	my $name = $pl->ob->name;
		1582
		1583	$pl->{deny_save} = 1;
		1584	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1585
		1586	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1587	$pl->deactivate;
		1588	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1589	$pl->ob->check_score;
		1590	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1591	$pl->ns->destroy if $pl->ns;
		1592
		1593	my $path = playerdir $pl;
		1594	my $temp = "$path~$cf::RUNTIME~deleting~";
		1595	aio_rename $path, $temp;
		1596	delete $cf::PLAYER{$pl->ob->name};
		1597	$pl->destroy;
		1598
		1599	my $prefix = qr<^~\Q$name\E/>;
		1600
		1601	# nuke player maps
		1602	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1603
		1604	IO::AIO::aio_rmtree $temp;
		1605	}
		1606
		1607	=item $pl->kick
		1608
		1609	Kicks a player out of the game. This destroys the connection.
		1610
		1611	=cut
		1612
		1613	sub kick {
		1614	my ($pl, $kicker) = @_;
		1615
		1616	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1617	$pl->killer ("kicked");
		1618	$pl->ns->destroy;
		1619	}
		1620
		1621	=item cf::player::list_logins
		1622
		1623	Returns am arrayref of all valid playernames in the system, can take a
		1624	while and may block, so not sync_job-capable, ever.
		1625
		1626	=cut
		1627
		1628	sub list_logins {
		1629	my $dirs = aio_readdir $PLAYERDIR
		1630	or return [];
		1631
		1632	my @logins;
		1633
		1634	for my $login (@$dirs) {
		1635	my $path = path $login;
		1636
		1637	# a .pst is a dead give-away for a valid player
		1638	# if no pst file found, open and chekc for blocked users
		1639	if (aio_stat "$path.pst") {
		1640	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1641	aio_read $fh, 0, 512, my $buf, 0 or next;
		1642	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1643	}
		1644
		1645	utf8::decode $login;
		1646	push @logins, $login;
		1647	}
		1648
		1649	\@logins
		1650	}
		1651
		1652	=item $player->maps
		1653
		1654	Returns an arrayref of map paths that are private for this
		1655	player. May block.
		1656
		1657	=cut
		1658
		1659	sub maps($) {
		1660	my ($pl) = @_;
		1661
		1662	$pl = ref $pl ? $pl->ob->name : $pl;
		1663
		1664	my $files = aio_readdir playerdir $pl
		1665	or return;
		1666
		1667	my @paths;
		1668
		1669	for (@$files) {
		1670	utf8::decode $_;
		1671	next if /\.(?:pl|pst)$/;
		1672	next unless /^$PATH_SEP/o;
		1673
		1674	push @paths, cf::map::normalise "~$pl/$_";
		1675	}
		1676
		1677	\@paths
		1678	}
		1679
		1680	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1681
		1682	Expand deliantra pod fragments into protocol xml.
		1683
		1684	=item $player->ext_reply ($msgid, @msg)
		1685
		1686	Sends an ext reply to the player.
		1687
		1688	=cut
		1689
		1690	sub ext_reply($$@) {
		1691	my ($self, $id, @msg) = @_;
		1692
		1693	$self->ns->ext_reply ($id, @msg)
		1694	}
		1695
		1696	=item $player->ext_msg ($type, @msg)
		1697
		1698	Sends an ext event to the client.
		1699
		1700	=cut
		1701
		1702	sub ext_msg($$@) {
		1703	my ($self, $type, @msg) = @_;
		1704
		1705	$self->ns->ext_msg ($type, @msg);
		1706	}
		1707
		1708	=head3 cf::region
		1709
		1710	=over 4
		1711
		1712	=cut
		1713
		1714	package cf::region;
		1715
		1716	=item cf::region::find_by_path $path
		1717
		1718	Tries to decuce the likely region for a map knowing only its path.
		1719
		1720	=cut
		1721
		1722	sub find_by_path($) {
		1723	my ($path) = @_;
		1724
		1725	my ($match, $specificity);
		1726
		1727	for my $region (list) {
		1728	if ($region->{match} && $path =~ $region->{match}) {
		1729	($match, $specificity) = ($region, $region->specificity)
		1730	if $region->specificity > $specificity;
		1731	}
		1732	}
		1733
		1734	$match
		1735	}
		1736
		1737	=back
		1738
		1739	=head3 cf::map
		1740
		1741	=over 4
		1742
		1743	=cut
		1744
		1745	package cf::map;
		1746
		1747	use Fcntl;
		1748	use Coro::AIO;
		1749
		1750	use overload
		1751	'""' => \&as_string,
		1752	fallback => 1;
		1753
		1754	our $MAX_RESET = 3600;
		1755	our $DEFAULT_RESET = 3000;
		1756
		1757	sub generate_random_map {
		1758	my ($self, $rmp) = @_;
		1759
		1760	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1761
		1762	# mit "rum" bekleckern, nicht
		1763	$self->_create_random_map (
		1764	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1765	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1766	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1767	$rmp->{exit_on_final_map},
		1768	$rmp->{xsize}, $rmp->{ysize},
		1769	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1770	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1771	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1772	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1773	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1774	(cf::region::find $rmp->{region}), $rmp->{custom}
		1775	)
		1776	}
		1777
		1778	=item cf::map->register ($regex, $prio)
		1779
		1780	Register a handler for the map path matching the given regex at the
		1781	givne priority (higher is better, built-in handlers have priority 0, the
		1782	default).
		1783
		1784	=cut
		1785
631	sub register {	1786	sub register {
		1787	my (undef, $regex, $prio) = @_;
		1788	my $pkg = caller;
		1789
		1790	no strict;
		1791	push @{"$pkg\::ISA"}, __PACKAGE__;
		1792
		1793	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1794	}
		1795
		1796	# also paths starting with '/'
		1797	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1798
		1799	sub thawer_merge {
632	my ($base, $pkg) = @_;	1800	my ($self, $merge) = @_;
633		1801
634	#TODO	1802	# we have to keep some variables in memory intact
635	}	1803	local $self->{path};
		1804	local $self->{load_path};
636		1805
637	sub load_extension {	1806	$self->SUPER::thawer_merge ($merge);
		1807	}
		1808
		1809	sub normalise {
638	my ($path) = @_;	1810	my ($path, $base) = @_;
639		1811
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1812	$path = "$path"; # make sure its a string
641	my $base = $1;
642	my $pkg = $1;
643	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";
645		1813
646	warn "loading '$path' into '$pkg'\n";	1814	$path =~ s/\.map$//;
647		1815
648	open my $fh, "<:utf8", $path	1816	# map plan:
649	or die "$path: $!";	1817	#
		1818	# /! non-realised random map exit (special hack!)
		1819	# {... are special paths that are not being touched
		1820	# ?xxx/... are special absolute paths
		1821	# ?random/... random maps
		1822	# /... normal maps
		1823	# ~user/... per-player map of a specific user
650		1824
651	my $source =	1825	$path =~ s/$PATH_SEP/\//go;
652	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })
655	. "\n};\n1";
656		1826
657	eval $source	1827	# treat it as relative path if it starts with
658	or die $@ ? "$path: $@\n"	1828	# something that looks reasonable
659	: "extension disabled.\n";	1829	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1830	$base or Carp::carp "normalise called with relative path and no base: '$path'";
660		1831
661	push @exts, $pkg;	1832	$base =~ s{[^/]+/?$}{};
662	$ext_pkg{$base} = $pkg;	1833	$path = "$base/$path";
663
664	# no strict 'refs';
665	# @{"$pkg\::ISA"} = ext::;
666
667	register $base, $pkg;
668	}
669
670	sub unload_extension {
671	my ($pkg) = @_;
672
673	warn "removing extension $pkg\n";
674
675	# remove hooks
676	#TODO
677	# for my $idx (0 .. $#PLUGIN_EVENT) {
678	# delete $hook[$idx]{$pkg};
679	# }	1834	}
680		1835
681	# remove commands	1836	for ($path) {
682	for my $name (keys %COMMAND) {	1837	redo if s{//}{/};
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1838	redo if s{/\.?/}{/};
		1839	redo if s{/[^/]+/\.\./}{/};
		1840	}
684		1841
685	if (@cb) {	1842	$path
686	$COMMAND{$name} = \@cb;	1843	}
		1844
		1845	sub new_from_path {
		1846	my (undef, $path, $base) = @_;
		1847
		1848	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1849
		1850	$path = normalise $path, $base;
		1851
		1852	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1853	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1854	my $self = bless cf::map::new, $pkg;
		1855	$self->{path} = $path; $self->path ($path);
		1856	$self->init; # pass $1 etc.
		1857	return $self;
		1858	}
		1859	}
		1860
		1861	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1862	()
		1863	}
		1864
		1865	sub init {
		1866	my ($self) = @_;
		1867
		1868	$self
		1869	}
		1870
		1871	sub as_string {
		1872	my ($self) = @_;
		1873
		1874	"$self->{path}"
		1875	}
		1876
		1877	# the displayed name, this is a one way mapping
		1878	sub visible_name {
		1879	&as_string
		1880	}
		1881
		1882	# the original (read-only) location
		1883	sub load_path {
		1884	my ($self) = @_;
		1885
		1886	"$MAPDIR/$self->{path}.map"
		1887	}
		1888
		1889	# the temporary/swap location
		1890	sub save_path {
		1891	my ($self) = @_;
		1892
		1893	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1894	"$TMPDIR/$path.map"
		1895	}
		1896
		1897	# the unique path, undef == no special unique path
		1898	sub uniq_path {
		1899	my ($self) = @_;
		1900
		1901	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1902	"$UNIQUEDIR/$path"
		1903	}
		1904
		1905	sub decay_objects {
		1906	my ($self) = @_;
		1907
		1908	return if $self->{deny_reset};
		1909
		1910	$self->do_decay_objects;
		1911	}
		1912
		1913	sub unlink_save {
		1914	my ($self) = @_;
		1915
		1916	utf8::encode (my $save = $self->save_path);
		1917	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1918	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1919	}
		1920
		1921	sub load_header_from($) {
		1922	my ($self, $path) = @_;
		1923
		1924	utf8::encode $path;
		1925	my $f = new_from_file cf::object::thawer $path
		1926	or return;
		1927
		1928	$self->_load_header ($f)
		1929	or return;
		1930
		1931	local $MAP_LOADING{$self->{path}} = $self;
		1932	$f->resolve_delayed_derefs;
		1933
		1934	$self->{load_path} = $path;
		1935
		1936	1
		1937	}
		1938
		1939	sub load_header_orig {
		1940	my ($self) = @_;
		1941
		1942	$self->load_header_from ($self->load_path)
		1943	}
		1944
		1945	sub load_header_temp {
		1946	my ($self) = @_;
		1947
		1948	$self->load_header_from ($self->save_path)
		1949	}
		1950
		1951	sub prepare_temp {
		1952	my ($self) = @_;
		1953
		1954	$self->last_access ((delete $self->{last_access})
		1955	|| $cf::RUNTIME); #d#
		1956	# safety
		1957	$self->{instantiate_time} = $cf::RUNTIME
		1958	if $self->{instantiate_time} > $cf::RUNTIME;
		1959	}
		1960
		1961	sub prepare_orig {
		1962	my ($self) = @_;
		1963
		1964	$self->{load_original} = 1;
		1965	$self->{instantiate_time} = $cf::RUNTIME;
		1966	$self->last_access ($cf::RUNTIME);
		1967	$self->instantiate;
		1968	}
		1969
		1970	sub load_header {
		1971	my ($self) = @_;
		1972
		1973	if ($self->load_header_temp) {
		1974	$self->prepare_temp;
687	} else {	1975	} else {
688	delete $COMMAND{$name};	1976	$self->load_header_orig
689	}	1977	or return;
		1978	$self->prepare_orig;
		1979	}
		1980
		1981	$self->{deny_reset} = 1
		1982	if $self->no_reset;
		1983
		1984	$self->default_region (cf::region::find_by_path $self->{path})
		1985	unless $self->default_region;
		1986
690	}	1987	1
		1988	}
691		1989
692	# remove extcmds	1990	sub find;
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1991	sub find {
694	delete $EXTCMD{$name};	1992	my ($path, $origin) = @_;
		1993
		1994	$path = normalise $path, $origin && $origin->path;
		1995
		1996	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		1997	my $guard2 = cf::lock_acquire "map_find:$path";
		1998
		1999	$cf::MAP{$path} || do {
		2000	my $map = new_from_path cf::map $path
		2001	or return;
		2002
		2003	$map->{last_save} = $cf::RUNTIME;
		2004
		2005	$map->load_header
		2006	or return;
		2007
		2008	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2009	# doing this can freeze the server in a sync job, obviously
		2010	#$cf::WAIT_FOR_TICK->wait;
		2011	undef $guard2;
		2012	undef $guard1;
		2013	$map->reset;
		2014	return find $path;
		2015	}
		2016
		2017	$cf::MAP{$path} = $map
		2018	}
		2019	}
		2020
		2021	sub pre_load { }
		2022	#sub post_load { } # XS
		2023
		2024	sub load {
		2025	my ($self) = @_;
		2026
		2027	local $self->{deny_reset} = 1; # loading can take a long time
		2028
		2029	my $path = $self->{path};
		2030
695	}	2031	{
		2032	my $guard = cf::lock_acquire "map_data:$path";
696		2033
697	if (my $cb = $pkg->can ("unload")) {	2034	return unless $self->valid;
698	eval {	2035	return unless $self->in_memory == cf::MAP_SWAPPED;
699	$cb->($pkg);	2036
		2037	$self->in_memory (cf::MAP_LOADING);
		2038
		2039	$self->alloc;
		2040
		2041	$self->pre_load;
		2042	cf::cede_to_tick;
		2043
		2044	my $f = new_from_file cf::object::thawer $self->{load_path};
		2045	$f->skip_block;
		2046	$self->_load_objects ($f)
		2047	or return;
		2048
		2049	$self->post_load_original
		2050	if delete $self->{load_original};
		2051
		2052	if (my $uniq = $self->uniq_path) {
		2053	utf8::encode $uniq;
		2054	unless (aio_stat $uniq) {
		2055	if (my $f = new_from_file cf::object::thawer $uniq) {
		2056	$self->clear_unique_items;
		2057	$self->_load_objects ($f);
		2058	$f->resolve_delayed_derefs;
		2059	}
700	1	2060	}
701	} or warn "$pkg unloaded, but with errors: $@";	2061	}
702	}
703		2062
704	Symbol::delete_package $pkg;	2063	$f->resolve_delayed_derefs;
705	}
706		2064
707	sub load_extensions {	2065	cf::cede_to_tick;
708	for my $ext (<$LIBDIR/*.ext>) {	2066	# now do the right thing for maps
709	next unless -r $ext;	2067	$self->link_multipart_objects;
710	eval {	2068	$self->difficulty ($self->estimate_difficulty)
711	load_extension $ext;	2069	unless $self->difficulty;
712	1	2070	cf::cede_to_tick;
713	} or warn "$ext not loaded: $@";
714	}
715	}
716		2071
717	#############################################################################	2072	unless ($self->{deny_activate}) {
718	# load/save/clean perl data associated with a map	2073	$self->decay_objects;
		2074	$self->fix_auto_apply;
		2075	$self->update_buttons;
		2076	cf::cede_to_tick;
		2077	$self->activate;
		2078	}
719		2079
720	*cf::mapsupport::on_clean = sub {	2080	$self->{last_save} = $cf::RUNTIME;
		2081	$self->last_access ($cf::RUNTIME);
		2082
		2083	$self->in_memory (cf::MAP_ACTIVE);
		2084	}
		2085
		2086	$self->post_load;
		2087	}
		2088
		2089	sub customise_for {
		2090	my ($self, $ob) = @_;
		2091
		2092	return find "~" . $ob->name . "/" . $self->{path}
		2093	if $self->per_player;
		2094
		2095	# return find "?party/" . $ob->name . "/" . $self->{path}
		2096	# if $self->per_party;
		2097
		2098	$self
		2099	}
		2100
		2101	# find and load all maps in the 3x3 area around a map
		2102	sub load_neighbours {
721	my ($map) = @_;	2103	my ($map) = @_;
722		2104
723	my $path = $map->tmpname;	2105	my @neigh; # diagonal neighbours
724	defined $path or return;
725		2106
726	unlink "$path.pst";	2107	for (0 .. 3) {
727	};	2108	my $neigh = $map->tile_path ($_)
		2109	or next;
		2110	$neigh = find $neigh, $map
		2111	or next;
		2112	$neigh->load;
728		2113
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2114	push @neigh,
		2115	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2116	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2117	}
730		2118
731	#############################################################################	2119	for (grep defined $_->[0], @neigh) {
732	# load/save perl data associated with player->ob objects	2120	my ($path, $origin) = @$_;
733		2121	my $neigh = find $path, $origin
734	sub all_objects(@) {	2122	or next;
735	@_, map all_objects ($_->inv), @_	2123	$neigh->load;
		2124	}
736	}	2125	}
737		2126
738	# TODO: compatibility cruft, remove when no longer needed	2127	sub find_sync {
739	cf::player->attach (	2128	my ($path, $origin) = @_;
740	on_load => sub {
741	my ($pl, $path) = @_;
742		2129
743	for my $o (all_objects $pl->ob) {	2130	cf::sync_job { find $path, $origin }
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2131	}
745	$o->set_ob_key_value ("_perl_data");
746		2132
747	%$o = %{ Storable::thaw pack "H*", $value };	2133	sub do_load_sync {
		2134	my ($map) = @_;
		2135
		2136	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2137	if $Coro::current == $Coro::main;
		2138
		2139	cf::sync_job { $map->load };
		2140	}
		2141
		2142	our %MAP_PREFETCH;
		2143	our $MAP_PREFETCHER = undef;
		2144
		2145	sub find_async {
		2146	my ($path, $origin, $load) = @_;
		2147
		2148	$path = normalise $path, $origin && $origin->{path};
		2149
		2150	if (my $map = $cf::MAP{$path}) {
		2151	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2152	}
		2153
		2154	$MAP_PREFETCH{$path} |= $load;
		2155
		2156	$MAP_PREFETCHER ||= cf::async {
		2157	$Coro::current->{desc} = "map prefetcher";
		2158
		2159	while (%MAP_PREFETCH) {
		2160	while (my ($k, $v) = each %MAP_PREFETCH) {
		2161	if (my $map = find $k) {
		2162	$map->load if $v;
		2163	}
		2164
		2165	delete $MAP_PREFETCH{$k};
748	}	2166	}
749	}	2167	}
		2168	undef $MAP_PREFETCHER;
		2169	};
		2170	$MAP_PREFETCHER->prio (6);
		2171
		2172	()
		2173	}
		2174
		2175	sub save {
		2176	my ($self) = @_;
		2177
		2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2179
		2180	$self->{last_save} = $cf::RUNTIME;
		2181
		2182	return unless $self->dirty;
		2183
		2184	my $save = $self->save_path; utf8::encode $save;
		2185	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2186
		2187	$self->{load_path} = $save;
		2188
		2189	return if $self->{deny_save};
		2190
		2191	local $self->{last_access} = $self->last_access;#d#
		2192
		2193	cf::async {
		2194	$Coro::current->{desc} = "map player save";
		2195	$_->contr->save for $self->players;
		2196	};
		2197
		2198	cf::get_slot 0.02;
		2199
		2200	if ($uniq) {
		2201	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2202	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2203	} else {
		2204	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
750	},	2205	}
751	);	2206	}
752		2207
753	#############################################################################	2208	sub swap_out {
		2209	my ($self) = @_;
754		2210
755	=head2 CORE EXTENSIONS	2211	# save first because save cedes
		2212	$self->save;
756		2213
757	Functions and methods that extend core crossfire objects.	2214	my $lock = cf::lock_acquire "map_data:$self->{path}";
758		2215
759	=head3 cf::player	2216	return if $self->players;
		2217	return if $self->in_memory != cf::MAP_ACTIVE;
		2218	return if $self->{deny_save};
		2219
		2220	$self->in_memory (cf::MAP_SWAPPED);
		2221
		2222	$self->deactivate;
		2223	$_->clear_links_to ($self) for values %cf::MAP;
		2224	$self->clear;
		2225	}
		2226
		2227	sub reset_at {
		2228	my ($self) = @_;
		2229
		2230	# TODO: safety, remove and allow resettable per-player maps
		2231	return 1e99 if $self->{deny_reset};
		2232
		2233	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2234	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2235
		2236	$time + $to
		2237	}
		2238
		2239	sub should_reset {
		2240	my ($self) = @_;
		2241
		2242	$self->reset_at <= $cf::RUNTIME
		2243	}
		2244
		2245	sub reset {
		2246	my ($self) = @_;
		2247
		2248	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2249
		2250	return if $self->players;
		2251
		2252	warn "resetting map ", $self->path, "\n";
		2253
		2254	$self->in_memory (cf::MAP_SWAPPED);
		2255
		2256	# need to save uniques path
		2257	unless ($self->{deny_save}) {
		2258	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2259
		2260	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2261	if $uniq;
		2262	}
		2263
		2264	delete $cf::MAP{$self->path};
		2265
		2266	$self->deactivate;
		2267	$_->clear_links_to ($self) for values %cf::MAP;
		2268	$self->clear;
		2269
		2270	$self->unlink_save;
		2271	$self->destroy;
		2272	}
		2273
		2274	my $nuke_counter = "aaaa";
		2275
		2276	sub nuke {
		2277	my ($self) = @_;
		2278
		2279	{
		2280	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2281
		2282	delete $cf::MAP{$self->path};
		2283
		2284	$self->unlink_save;
		2285
		2286	bless $self, "cf::map";
		2287	delete $self->{deny_reset};
		2288	$self->{deny_save} = 1;
		2289	$self->reset_timeout (1);
		2290	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2291
		2292	$cf::MAP{$self->path} = $self;
		2293	}
		2294
		2295	$self->reset; # polite request, might not happen
		2296	}
		2297
		2298	=item $maps = cf::map::tmp_maps
		2299
		2300	Returns an arrayref with all map paths of currently instantiated and saved
		2301	maps. May block.
		2302
		2303	=cut
		2304
		2305	sub tmp_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	/\.map$/
		2310	? normalise $_
		2311	: ()
		2312	} @{ aio_readdir $TMPDIR or [] }
		2313	]
		2314	}
		2315
		2316	=item $maps = cf::map::random_maps
		2317
		2318	Returns an arrayref with all map paths of currently instantiated and saved
		2319	random maps. May block.
		2320
		2321	=cut
		2322
		2323	sub random_maps() {
		2324	[
		2325	map {
		2326	utf8::decode $_;
		2327	/\.map$/
		2328	? normalise "?random/$_"
		2329	: ()
		2330	} @{ aio_readdir $RANDOMDIR or [] }
		2331	]
		2332	}
		2333
		2334	=item cf::map::unique_maps
		2335
		2336	Returns an arrayref of paths of all shared maps that have
		2337	instantiated unique items. May block.
		2338
		2339	=cut
		2340
		2341	sub unique_maps() {
		2342	[
		2343	map {
		2344	utf8::decode $_;
		2345	s/\.map$//; # TODO future compatibility hack
		2346	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2347	? ()
		2348	: normalise $_
		2349	} @{ aio_readdir $UNIQUEDIR or [] }
		2350	]
		2351	}
		2352
		2353	=item cf::map::static_maps
		2354
		2355	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2356	file in the shared directory excluding F</styles> and F</editor>). May
		2357	block.
		2358
		2359	=cut
		2360
		2361	sub static_maps() {
		2362	my @dirs = "";
		2363	my @maps;
		2364
		2365	while (@dirs) {
		2366	my $dir = shift @dirs;
		2367
		2368	next if $dir eq "/styles" || $dir eq "/editor";
		2369
		2370	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2371	or return;
		2372
		2373	for (@$files) {
		2374	s/\.map$// or next;
		2375	utf8::decode $_;
		2376	push @maps, "$dir/$_";
		2377	}
		2378
		2379	push @dirs, map "$dir/$_", @$dirs;
		2380	}
		2381
		2382	\@maps
		2383	}
		2384
		2385	=back
		2386
		2387	=head3 cf::object
		2388
		2389	=cut
		2390
		2391	package cf::object;
760		2392
761	=over 4	2393	=over 4
762		2394
763	=item cf::player::exists $login	2395	=item $ob->inv_recursive
764		2396
765	Returns true when the given account exists.	2397	Returns the inventory of the object I<and> their inventories, recursively,
		2398	but I<not> the object itself.
766		2399
767	=cut	2400	=cut
768		2401
769	sub cf::player::exists($) {	2402	sub inv_recursive_;
770	cf::player::find $_[0]	2403	sub inv_recursive_ {
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2404	map { $_, inv_recursive_ $_->inv } @_
772	}	2405	}
773		2406
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	2407	sub inv_recursive {
775		2408	inv_recursive_ inv $_[0]
776	Sends an ext reply to the player.
777
778	=cut
779
780	sub cf::player::ext_reply($$$%) {
781	my ($self, $id, %msg) = @_;
782
783	$msg{msgid} = $id;
784
785	$self->send ("ext " . to_json \%msg);
786	}	2409	}
		2410
		2411	=item $ref = $ob->ref
		2412
		2413	Creates and returns a persistent reference to an object that can be stored as a string.
		2414
		2415	=item $ob = cf::object::deref ($refstring)
		2416
		2417	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2418	even if the object actually exists. May block.
		2419
		2420	=cut
		2421
		2422	sub deref {
		2423	my ($ref) = @_;
		2424
		2425	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2426	my ($uuid, $name) = ($1, $2);
		2427	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2428	or return;
		2429	$pl->ob->uuid eq $uuid
		2430	or return;
		2431
		2432	$pl->ob
		2433	} else {
		2434	warn "$ref: cannot resolve object reference\n";
		2435	undef
		2436	}
		2437	}
		2438
		2439	package cf;
787		2440
788	=back	2441	=back
789		2442
790	=head3 cf::object::player	2443	=head3 cf::object::player
791		2444
…		…
796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2449	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
797	can be C<undef>. Does the right thing when the player is currently in a	2450	can be C<undef>. Does the right thing when the player is currently in a
798	dialogue with the given NPC character.	2451	dialogue with the given NPC character.
799		2452
800	=cut	2453	=cut
		2454
		2455	our $SAY_CHANNEL = {
		2456	id => "say",
		2457	title => "Map",
		2458	reply => "say ",
		2459	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2460	};
		2461
		2462	our $CHAT_CHANNEL = {
		2463	id => "chat",
		2464	title => "Chat",
		2465	reply => "chat ",
		2466	tooltip => "Player chat and shouts, global to the server.",
		2467	};
801		2468
802	# rough implementation of a future "reply" method that works	2469	# rough implementation of a future "reply" method that works
803	# with dialog boxes.	2470	# with dialog boxes.
804	#TODO: the first argument must go, split into a $npc->reply_to ( method	2471	#TODO: the first argument must go, split into a $npc->reply_to ( method
805	sub cf::object::player::reply($$$;$) {	2472	sub cf::object::player::reply($$$;$) {
…		…
807		2474
808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2475	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
809		2476
810	if ($self->{record_replies}) {	2477	if ($self->{record_replies}) {
811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2478	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2479
812	} else {	2480	} else {
		2481	my $pl = $self->contr;
		2482
		2483	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2484	my $dialog = $pl->{npc_dialog};
		2485	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2486
		2487	} else {
813	$msg = $npc->name . " says: $msg" if $npc;	2488	$msg = $npc->name . " says: $msg" if $npc;
814	$self->message ($msg, $flags);	2489	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2490	}
815	}	2491	}
		2492	}
		2493
		2494	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2495
		2496	=cut
		2497
		2498	sub cf::object::send_msg {
		2499	my $pl = shift->contr
		2500	or return;
		2501	$pl->send_msg (@_);
816	}	2502	}
817		2503
818	=item $player_object->may ("access")	2504	=item $player_object->may ("access")
819		2505
820	Returns wether the given player is authorized to access resource "access"	2506	Returns wether the given player is authorized to access resource "access"
…		…
829	(ref $cf::CFG{"may_$access"}	2515	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2516	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	2517	: $cf::CFG{"may_$access"})
832	}	2518	}
833		2519
		2520	=item $player_object->enter_link
		2521
		2522	Freezes the player and moves him/her to a special map (C<{link}>).
		2523
		2524	The player should be reasonably safe there for short amounts of time (e.g.
		2525	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2526	though, as the palyer cannot control the character while it is on the link
		2527	map.
		2528
		2529	Will never block.
		2530
		2531	=item $player_object->leave_link ($map, $x, $y)
		2532
		2533	Moves the player out of the special C<{link}> map onto the specified
		2534	map. If the map is not valid (or omitted), the player will be moved back
		2535	to the location he/she was before the call to C<enter_link>, or, if that
		2536	fails, to the emergency map position.
		2537
		2538	Might block.
		2539
		2540	=cut
		2541
		2542	sub link_map {
		2543	unless ($LINK_MAP) {
		2544	$LINK_MAP = cf::map::find "{link}"
		2545	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2546	$LINK_MAP->load;
		2547	}
		2548
		2549	$LINK_MAP
		2550	}
		2551
		2552	sub cf::object::player::enter_link {
		2553	my ($self) = @_;
		2554
		2555	$self->deactivate_recursive;
		2556
		2557	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2558
		2559	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2560	if $self->map && $self->map->{path} ne "{link}";
		2561
		2562	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2563	}
		2564
		2565	sub cf::object::player::leave_link {
		2566	my ($self, $map, $x, $y) = @_;
		2567
		2568	return unless $self->contr->active;
		2569
		2570	my $link_pos = delete $self->{_link_pos};
		2571
		2572	unless ($map) {
		2573	# restore original map position
		2574	($map, $x, $y) = @{ $link_pos || [] };
		2575	$map = cf::map::find $map;
		2576
		2577	unless ($map) {
		2578	($map, $x, $y) = @$EMERGENCY_POSITION;
		2579	$map = cf::map::find $map
		2580	or die "FATAL: cannot load emergency map\n";
		2581	}
		2582	}
		2583
		2584	($x, $y) = (-1, -1)
		2585	unless (defined $x) && (defined $y);
		2586
		2587	# use -1 or undef as default coordinates, not 0, 0
		2588	($x, $y) = ($map->enter_x, $map->enter_y)
		2589	if $x <= 0 && $y <= 0;
		2590
		2591	$map->load;
		2592	$map->load_neighbours;
		2593
		2594	return unless $self->contr->active;
		2595
		2596	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2597	$self->enter_map ($map, $x, $y);
		2598
		2599	# only activate afterwards, to support waiting in hooks
		2600	$self->activate_recursive;
		2601	}
		2602
		2603	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2604
		2605	Moves the player to the given map-path and coordinates by first freezing
		2606	her, loading and preparing them map, calling the provided $check callback
		2607	that has to return the map if sucecssful, and then unfreezes the player on
		2608	the new (success) or old (failed) map position. In either case, $done will
		2609	be called at the end of this process.
		2610
		2611	Note that $check will be called with a potentially non-loaded map, so if
		2612	it needs a loaded map it has to call C<< ->load >>.
		2613
		2614	=cut
		2615
		2616	our $GOTOGEN;
		2617
		2618	sub cf::object::player::goto {
		2619	my ($self, $path, $x, $y, $check, $done) = @_;
		2620
		2621	# do generation counting so two concurrent goto's will be executed in-order
		2622	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2623
		2624	$self->enter_link;
		2625
		2626	(async {
		2627	$Coro::current->{desc} = "player::goto $path $x $y";
		2628
		2629	# *tag paths override both path and x|y
		2630	if ($path =~ /^\*(.*)$/) {
		2631	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2632	my $ob = $obs[rand @obs];
		2633
		2634	# see if we actually can go there
		2635	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2636	$ob = $obs[rand @obs];
		2637	} else {
		2638	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2639	}
		2640	# else put us there anyways for now #d#
		2641
		2642	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2643	} else {
		2644	($path, $x, $y) = (undef, undef, undef);
		2645	}
		2646	}
		2647
		2648	my $map = eval {
		2649	my $map = defined $path ? cf::map::find $path : undef;
		2650
		2651	if ($map) {
		2652	$map = $map->customise_for ($self);
		2653	$map = $check->($map) if $check && $map;
		2654	} else {
		2655	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2656	}
		2657
		2658	$map
		2659	};
		2660
		2661	if ($@) {
		2662	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2663	LOG llevError | logBacktrace, Carp::longmess $@;
		2664	}
		2665
		2666	if ($gen == $self->{_goto_generation}) {
		2667	delete $self->{_goto_generation};
		2668	$self->leave_link ($map, $x, $y);
		2669	}
		2670
		2671	$done->() if $done;
		2672	})->prio (1);
		2673	}
		2674
		2675	=item $player_object->enter_exit ($exit_object)
		2676
		2677	=cut
		2678
		2679	sub parse_random_map_params {
		2680	my ($spec) = @_;
		2681
		2682	my $rmp = { # defaults
		2683	xsize => (cf::rndm 15, 40),
		2684	ysize => (cf::rndm 15, 40),
		2685	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2686	#layout => string,
		2687	};
		2688
		2689	for (split /\n/, $spec) {
		2690	my ($k, $v) = split /\s+/, $_, 2;
		2691
		2692	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2693	}
		2694
		2695	$rmp
		2696	}
		2697
		2698	sub prepare_random_map {
		2699	my ($exit) = @_;
		2700
		2701	# all this does is basically replace the /! path by
		2702	# a new random map path (?random/...) with a seed
		2703	# that depends on the exit object
		2704
		2705	my $rmp = parse_random_map_params $exit->msg;
		2706
		2707	if ($exit->map) {
		2708	$rmp->{region} = $exit->region->name;
		2709	$rmp->{origin_map} = $exit->map->path;
		2710	$rmp->{origin_x} = $exit->x;
		2711	$rmp->{origin_y} = $exit->y;
		2712
		2713	$exit->map->touch;
		2714	}
		2715
		2716	$rmp->{random_seed} ||= $exit->random_seed;
		2717
		2718	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2719	my $md5 = Digest::MD5::md5_hex $data;
		2720	my $meta = "$RANDOMDIR/$md5.meta";
		2721
		2722	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2723	aio_write $fh, 0, (length $data), $data, 0;
		2724	undef $fh;
		2725	aio_rename "$meta~", $meta;
		2726
		2727	my $slaying = "?random/$md5";
		2728
		2729	if ($exit->valid) {
		2730	$exit->slaying ("?random/$md5");
		2731	$exit->msg (undef);
		2732	}
		2733	}
		2734	}
		2735
		2736	sub cf::object::player::enter_exit {
		2737	my ($self, $exit) = @_;
		2738
		2739	return unless $self->type == cf::PLAYER;
		2740
		2741	$self->enter_link;
		2742
		2743	(async {
		2744	$Coro::current->{desc} = "enter_exit";
		2745
		2746	unless (eval {
		2747	$self->deactivate_recursive; # just to be sure
		2748
		2749	# random map handling
		2750	{
		2751	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2752
		2753	prepare_random_map $exit
		2754	if $exit->slaying eq "/!";
		2755	}
		2756
		2757	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2758	my $x = $exit->stats->hp;
		2759	my $y = $exit->stats->sp;
		2760
		2761	$self->goto ($map, $x, $y);
		2762
		2763	# if exit is damned, update players death & WoR home-position
		2764	$self->contr->savebed ($map, $x, $y)
		2765	if $exit->flag (cf::FLAG_DAMNED);
		2766
		2767	1
		2768	}) {
		2769	$self->message ("Something went wrong deep within the deliantra server. "
		2770	. "I'll try to bring you back to the map you were before. "
		2771	. "Please report this to the dungeon master!",
		2772	cf::NDI_UNIQUE | cf::NDI_RED);
		2773
		2774	warn "ERROR in enter_exit: $@";
		2775	$self->leave_link;
		2776	}
		2777	})->prio (1);
		2778	}
		2779
834	=head3 cf::client	2780	=head3 cf::client
835		2781
836	=over 4	2782	=over 4
837		2783
838	=item $client->send_drawinfo ($text, $flags)	2784	=item $client->send_drawinfo ($text, $flags)
…		…
844		2790
845	sub cf::client::send_drawinfo {	2791	sub cf::client::send_drawinfo {
846	my ($self, $text, $flags) = @_;	2792	my ($self, $text, $flags) = @_;
847		2793
848	utf8::encode $text;	2794	utf8::encode $text;
849	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2795	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
850	}	2796	}
851		2797
		2798	=item $client->send_big_packet ($pkt)
		2799
		2800	Like C<send_packet>, but tries to compress large packets, and fragments
		2801	them as required.
		2802
		2803	=cut
		2804
		2805	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2806
		2807	sub cf::client::send_big_packet {
		2808	my ($self, $pkt) = @_;
		2809
		2810	# try lzf for large packets
		2811	$pkt = "lzf " . Compress::LZF::compress $pkt
		2812	if 1024 <= length $pkt and $self->{can_lzf};
		2813
		2814	# split very large packets
		2815	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2816	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2817	$pkt = "frag";
		2818	}
		2819
		2820	$self->send_packet ($pkt);
		2821	}
		2822
		2823	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2824
		2825	Send a drawinfo or msg packet to the client, formatting the msg for the
		2826	client if neccessary. C<$type> should be a string identifying the type of
		2827	the message, with C<log> being the default. If C<$color> is negative, suppress
		2828	the message unless the client supports the msg packet.
		2829
		2830	=cut
		2831
		2832	# non-persistent channels (usually the info channel)
		2833	our %CHANNEL = (
		2834	"c/motd" => {
		2835	id => "infobox",
		2836	title => "MOTD",
		2837	reply => undef,
		2838	tooltip => "The message of the day",
		2839	},
		2840	"c/identify" => {
		2841	id => "infobox",
		2842	title => "Identify",
		2843	reply => undef,
		2844	tooltip => "Items recently identified",
		2845	},
		2846	"c/examine" => {
		2847	id => "infobox",
		2848	title => "Examine",
		2849	reply => undef,
		2850	tooltip => "Signs and other items you examined",
		2851	},
		2852	"c/shopinfo" => {
		2853	id => "infobox",
		2854	title => "Shop Info",
		2855	reply => undef,
		2856	tooltip => "What your bargaining skill tells you about the shop",
		2857	},
		2858	"c/book" => {
		2859	id => "infobox",
		2860	title => "Book",
		2861	reply => undef,
		2862	tooltip => "The contents of a note or book",
		2863	},
		2864	"c/lookat" => {
		2865	id => "infobox",
		2866	title => "Look",
		2867	reply => undef,
		2868	tooltip => "What you saw there",
		2869	},
		2870	"c/who" => {
		2871	id => "infobox",
		2872	title => "Players",
		2873	reply => undef,
		2874	tooltip => "Shows players who are currently online",
		2875	},
		2876	"c/body" => {
		2877	id => "infobox",
		2878	title => "Body Parts",
		2879	reply => undef,
		2880	tooltip => "Shows which body parts you posess and are available",
		2881	},
		2882	"c/statistics" => {
		2883	id => "infobox",
		2884	title => "Statistics",
		2885	reply => undef,
		2886	tooltip => "Shows your primary statistics",
		2887	},
		2888	"c/skills" => {
		2889	id => "infobox",
		2890	title => "Skills",
		2891	reply => undef,
		2892	tooltip => "Shows your experience per skill and item power",
		2893	},
		2894	"c/shopitems" => {
		2895	id => "infobox",
		2896	title => "Shop Items",
		2897	reply => undef,
		2898	tooltip => "Shows the items currently for sale in this shop",
		2899	},
		2900	"c/resistances" => {
		2901	id => "infobox",
		2902	title => "Resistances",
		2903	reply => undef,
		2904	tooltip => "Shows your resistances",
		2905	},
		2906	"c/pets" => {
		2907	id => "infobox",
		2908	title => "Pets",
		2909	reply => undef,
		2910	tooltip => "Shows information abotu your pets/a specific pet",
		2911	},
		2912	"c/perceiveself" => {
		2913	id => "infobox",
		2914	title => "Perceive Self",
		2915	reply => undef,
		2916	tooltip => "You gained detailed knowledge about yourself",
		2917	},
		2918	"c/uptime" => {
		2919	id => "infobox",
		2920	title => "Uptime",
		2921	reply => undef,
		2922	tooltip => "How long the server has been running since last restart",
		2923	},
		2924	"c/mapinfo" => {
		2925	id => "infobox",
		2926	title => "Map Info",
		2927	reply => undef,
		2928	tooltip => "Information related to the maps",
		2929	},
		2930	"c/party" => {
		2931	id => "party",
		2932	title => "Party",
		2933	reply => "gsay ",
		2934	tooltip => "Messages and chat related to your party",
		2935	},
		2936	"c/death" => {
		2937	id => "death",
		2938	title => "Death",
		2939	reply => undef,
		2940	tooltip => "Reason for and more info about your most recent death",
		2941	},
		2942	"c/say" => $SAY_CHANNEL,
		2943	"c/chat" => $CHAT_CHANNEL,
		2944	);
		2945
		2946	sub cf::client::send_msg {
		2947	my ($self, $channel, $msg, $color, @extra) = @_;
		2948
		2949	$msg = $self->pl->expand_cfpod ($msg)
		2950	unless $color & cf::NDI_VERBATIM;
		2951
		2952	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2953
		2954	# check predefined channels, for the benefit of C
		2955	if ($CHANNEL{$channel}) {
		2956	$channel = $CHANNEL{$channel};
		2957
		2958	$self->ext_msg (channel_info => $channel);
		2959	$channel = $channel->{id};
		2960
		2961	} elsif (ref $channel) {
		2962	# send meta info to client, if not yet sent
		2963	unless (exists $self->{channel}{$channel->{id}}) {
		2964	$self->{channel}{$channel->{id}} = $channel;
		2965	$self->ext_msg (channel_info => $channel);
		2966	}
		2967
		2968	$channel = $channel->{id};
		2969	}
		2970
		2971	return unless @extra || length $msg;
		2972
		2973	# default colour, mask it out
		2974	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2975	if $color & cf::NDI_DEF;
		2976
		2977	my $pkt = "msg "
		2978	. $self->{json_coder}->encode (
		2979	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2980	);
		2981
		2982	$self->send_big_packet ($pkt);
		2983	}
		2984
		2985	=item $client->ext_msg ($type, @msg)
		2986
		2987	Sends an ext event to the client.
		2988
		2989	=cut
		2990
		2991	sub cf::client::ext_msg($$@) {
		2992	my ($self, $type, @msg) = @_;
		2993
		2994	if ($self->extcmd == 2) {
		2995	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2996	} elsif ($self->extcmd == 1) { # TODO: remove
		2997	push @msg, msgtype => "event_$type";
		2998	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2999	}
		3000	}
		3001
		3002	=item $client->ext_reply ($msgid, @msg)
		3003
		3004	Sends an ext reply to the client.
		3005
		3006	=cut
		3007
		3008	sub cf::client::ext_reply($$@) {
		3009	my ($self, $id, @msg) = @_;
		3010
		3011	if ($self->extcmd == 2) {
		3012	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3013	} elsif ($self->extcmd == 1) {
		3014	#TODO: version 1, remove
		3015	unshift @msg, msgtype => "reply", msgid => $id;
		3016	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3017	}
		3018	}
852		3019
853	=item $success = $client->query ($flags, "text", \&cb)	3020	=item $success = $client->query ($flags, "text", \&cb)
854		3021
855	Queues a query to the client, calling the given callback with	3022	Queues a query to the client, calling the given callback with
856	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3023	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
857	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3024	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
858		3025
859	Queries can fail, so check the return code. Or don't, as queries will become	3026	Queries can fail, so check the return code. Or don't, as queries will
860	reliable at some point in the future.	3027	become reliable at some point in the future.
861		3028
862	=cut	3029	=cut
863		3030
864	sub cf::client::query {	3031	sub cf::client::query {
865	my ($self, $flags, $text, $cb) = @_;	3032	my ($self, $flags, $text, $cb) = @_;
…		…
873	utf8::encode $text;	3040	utf8::encode $text;
874	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3041	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
875		3042
876	$self->send_packet ($self->{query_queue}[0][0])	3043	$self->send_packet ($self->{query_queue}[0][0])
877	if @{ $self->{query_queue} } == 1;	3044	if @{ $self->{query_queue} } == 1;
		3045
		3046	1
878	}	3047	}
879		3048
880	cf::client->attach (	3049	cf::client->attach (
		3050	on_connect => sub {
		3051	my ($ns) = @_;
		3052
		3053	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3054	},
881	on_reply => sub {	3055	on_reply => sub {
882	my ($ns, $msg) = @_;	3056	my ($ns, $msg) = @_;
883		3057
884	# this weird shuffling is so that direct followup queries	3058	# this weird shuffling is so that direct followup queries
885	# get handled first	3059	# get handled first
886	my $queue = delete $ns->{query_queue};	3060	my $queue = delete $ns->{query_queue}
		3061	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		3062
888	(shift @$queue)->[1]->($msg);	3063	(shift @$queue)->[1]->($msg);
		3064	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
889		3065
890	push @{ $ns->{query_queue} }, @$queue;	3066	push @{ $ns->{query_queue} }, @$queue;
891		3067
892	if (@{ $ns->{query_queue} } == @$queue) {	3068	if (@{ $ns->{query_queue} } == @$queue) {
893	if (@$queue) {	3069	if (@$queue) {
…		…
895	} else {	3071	} else {
896	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3072	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
897	}	3073	}
898	}	3074	}
899	},	3075	},
		3076	on_exticmd => sub {
		3077	my ($ns, $buf) = @_;
		3078
		3079	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3080
		3081	if (ref $msg) {
		3082	my ($type, $reply, @payload) =
		3083	"ARRAY" eq ref $msg
		3084	? @$msg
		3085	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3086
		3087	my @reply;
		3088
		3089	if (my $cb = $EXTICMD{$type}) {
		3090	@reply = $cb->($ns, @payload);
		3091	}
		3092
		3093	$ns->ext_reply ($reply, @reply)
		3094	if $reply;
		3095
		3096	} else {
		3097	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3098	}
		3099
		3100	cf::override;
		3101	},
900	);	3102	);
901		3103
902	=item $client->coro (\&cb)	3104	=item $client->async (\&cb)
903		3105
904	Create a new coroutine, running the specified callback. The coroutine will	3106	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	3107	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	3108	or loss of connection).
907		3109
908	=cut	3110	=cut
909		3111
910	sub cf::client::coro {	3112	sub cf::client::async {
911	my ($self, $cb) = @_;	3113	my ($self, $cb) = @_;
912		3114
913	my $coro; $coro = async {	3115	my $coro = &Coro::async ($cb);
914	eval {	3116
915	$cb->();	3117	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	3118	delete $self->{_coro}{$coro+0};
919	};	3119	});
920		3120
921	$self->{_coro}{$coro+0} = $coro;	3121	$self->{_coro}{$coro+0} = $coro;
		3122
		3123	$coro
922	}	3124	}
923		3125
924	cf::client->attach (	3126	cf::client->attach (
925	on_destroy => sub {	3127	on_destroy => sub {
926	my ($ns) = @_;	3128	my ($ns) = @_;
…		…
945	our $safe = new Safe "safe";	3147	our $safe = new Safe "safe";
946	our $safe_hole = new Safe::Hole;	3148	our $safe_hole = new Safe::Hole;
947		3149
948	$SIG{FPE} = 'IGNORE';	3150	$SIG{FPE} = 'IGNORE';
949		3151
950	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3152	$safe->permit_only (Opcode::opset qw(
		3153	:base_core :base_mem :base_orig :base_math :base_loop
		3154	grepstart grepwhile mapstart mapwhile
		3155	sort time
		3156	));
951		3157
952	# here we export the classes and methods available to script code	3158	# here we export the classes and methods available to script code
953		3159
954	=pod	3160	=pod
955		3161
956	The following fucntions and emthods are available within a safe environment:	3162	The following functions and methods are available within a safe environment:
957		3163
958	cf::object contr pay_amount pay_player map	3164	cf::object
		3165	contr pay_amount pay_player map x y force_find force_add destroy
		3166	insert remove name archname title slaying race decrease split
		3167	value
		3168
959	cf::object::player player	3169	cf::object::player
960	cf::player peaceful	3170	player
961	cf::map trigger	3171
		3172	cf::player
		3173	peaceful
		3174
		3175	cf::map
		3176	trigger
962		3177
963	=cut	3178	=cut
964		3179
965	for (	3180	for (
966	["cf::object" => qw(contr pay_amount pay_player map)],	3181	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3182	insert remove inv nrof name archname title slaying race
		3183	decrease split destroy change_exp value msg lore send_msg)],
967	["cf::object::player" => qw(player)],	3184	["cf::object::player" => qw(player)],
968	["cf::player" => qw(peaceful)],	3185	["cf::player" => qw(peaceful send_msg)],
969	["cf::map" => qw(trigger)],	3186	["cf::map" => qw(trigger)],
970	) {	3187	) {
971	no strict 'refs';	3188	no strict 'refs';
972	my ($pkg, @funs) = @$_;	3189	my ($pkg, @funs) = @$_;
973	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3190	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
991		3208
992	my $qcode = $code;	3209	my $qcode = $code;
993	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3210	$qcode =~ s/"/‟/g; # not allowed in #line filenames
994	$qcode =~ s/\n/\\n/g;	3211	$qcode =~ s/\n/\\n/g;
995		3212
		3213	%vars = (_dummy => 0) unless %vars;
		3214
		3215	my @res;
996	local $_;	3216	local $_;
997	local @safe::cf::_safe_eval_args = values %vars;
998		3217
999	my $eval =	3218	my $eval =
1000	"do {\n"	3219	"do {\n"
1001	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3220	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1002	. "#line 0 \"{$qcode}\"\n"	3221	. "#line 0 \"{$qcode}\"\n"
1003	. $code	3222	. $code
1004	. "\n}"	3223	. "\n}"
1005	;	3224	;
1006		3225
		3226	if ($CFG{safe_eval}) {
1007	sub_generation_inc;	3227	sub_generation_inc;
		3228	local @safe::cf::_safe_eval_args = values %vars;
1008	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3229	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1009	sub_generation_inc;	3230	sub_generation_inc;
		3231	} else {
		3232	local @cf::_safe_eval_args = values %vars;
		3233	@res = wantarray ? eval eval : scalar eval $eval;
		3234	}
1010		3235
1011	if ($@) {	3236	if ($@) {
1012	warn "$@";	3237	warn "$@";
1013	warn "while executing safe code '$code'\n";	3238	warn "while executing safe code '$code'\n";
1014	warn "with arguments " . (join " ", %vars) . "\n";	3239	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1033	=cut	3258	=cut
1034		3259
1035	sub register_script_function {	3260	sub register_script_function {
1036	my ($fun, $cb) = @_;	3261	my ($fun, $cb) = @_;
1037		3262
1038	no strict 'refs';	3263	$fun = "safe::$fun" if $CFG{safe_eval};
1039	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3264	*$fun = $safe_hole->wrap ($cb);
1040	}	3265	}
1041		3266
1042	=back	3267	=back
1043		3268
1044	=cut	3269	=cut
1045		3270
1046	#############################################################################	3271	#############################################################################
		3272	# the server's init and main functions
1047		3273
1048	=head2 EXTENSION DATABASE SUPPORT	3274	sub load_facedata($) {
		3275	my ($path) = @_;
1049		3276
1050	Crossfire maintains a very simple database for extension use. It can	3277	# HACK to clear player env face cache, we need some signal framework
1051	currently store anything that can be serialised using Storable, which	3278	# for this (global event?)
1052	excludes objects.	3279	%ext::player_env::MUSIC_FACE_CACHE = ();
1053		3280
1054	The parameter C<$family> should best start with the name of the extension	3281	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1055	using it, it should be unique.
1056		3282
1057	=over 4	3283	warn "loading facedata from $path\n";
1058		3284
1059	=item $hashref = cf::db_get $family	3285	my $facedata;
		3286	0 < aio_load $path, $facedata
		3287	or die "$path: $!";
1060		3288
1061	Return a hashref for use by the extension C<$family>, which can be	3289	$facedata = Coro::Storable::thaw $facedata;
1062	modified. After modifications, you have to call C<cf::db_dirty> or
1063	C<cf::db_sync>.
1064		3290
1065	=item $value = cf::db_get $family => $key	3291	$facedata->{version} == 2
		3292	or cf::cleanup "$path: version mismatch, cannot proceed.";
1066		3293
1067	Returns a single value from the database	3294	# patch in the exptable
		3295	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3296	$facedata->{resource}{"res/exp_table"} = {
		3297	type => FT_RSRC,
		3298	data => $exp_table,
		3299	hash => (Digest::MD5::md5 $exp_table),
		3300	};
		3301	cf::cede_to_tick;
1068		3302
1069	=item cf::db_put $family => $hashref	3303	{
		3304	my $faces = $facedata->{faceinfo};
1070		3305
1071	Stores the given family hashref into the database. Updates are delayed, if	3306	while (my ($face, $info) = each %$faces) {
1072	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3307	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1073		3308
1074	=item cf::db_put $family => $key => $value	3309	cf::face::set_visibility $idx, $info->{visibility};
		3310	cf::face::set_magicmap $idx, $info->{magicmap};
		3311	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3312	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1075		3313
1076	Stores the given C<$value> in the family hash. Updates are delayed, if you	3314	cf::cede_to_tick;
1077	want the data to be synced to disk immediately, use C<cf::db_sync>.	3315	}
1078		3316
1079	=item cf::db_dirty	3317	while (my ($face, $info) = each %$faces) {
		3318	next unless $info->{smooth};
1080		3319
1081	Marks the database as dirty, to be updated at a later time.	3320	my $idx = cf::face::find $face
		3321	or next;
1082		3322
1083	=item cf::db_sync	3323	if (my $smooth = cf::face::find $info->{smooth}) {
		3324	cf::face::set_smooth $idx, $smooth;
		3325	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3326	} else {
		3327	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3328	}
1084		3329
1085	Immediately write the database to disk I<if it is dirty>.	3330	cf::cede_to_tick;
		3331	}
		3332	}
1086		3333
1087	=cut	3334	{
		3335	my $anims = $facedata->{animinfo};
1088		3336
1089	our $DB;	3337	while (my ($anim, $info) = each %$anims) {
		3338	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3339	cf::cede_to_tick;
		3340	}
		3341
		3342	cf::anim::invalidate_all; # d'oh
		3343	}
		3344
		3345	{
		3346	my $res = $facedata->{resource};
		3347
		3348	while (my ($name, $info) = each %$res) {
		3349	if (defined $info->{type}) {
		3350	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3351
		3352	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3353	cf::face::set_type $idx, $info->{type};
		3354	} else {
		3355	$RESOURCE{$name} = $info;
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
		3362	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3363
		3364	1
		3365	}
		3366
		3367	cf::global->attach (on_resource_update => sub {
		3368	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3369	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3370
		3371	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3372	my $sound = $soundconf->{compat}[$_]
		3373	or next;
		3374
		3375	my $face = cf::face::find "sound/$sound->[1]";
		3376	cf::sound::set $sound->[0] => $face;
		3377	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3378	}
		3379
		3380	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3381	my $face = cf::face::find "sound/$v";
		3382	cf::sound::set $k => $face;
		3383	}
		3384	}
		3385	});
		3386
		3387	register_exticmd fx_want => sub {
		3388	my ($ns, $want) = @_;
		3389
		3390	while (my ($k, $v) = each %$want) {
		3391	$ns->fx_want ($k, $v);
		3392	}
		3393	};
		3394
		3395	sub load_resource_file($) {
		3396	my $guard = lock_acquire "load_resource_file";
		3397
		3398	my $status = load_resource_file_ $_[0];
		3399	get_slot 0.1, 100;
		3400	cf::arch::commit_load;
		3401
		3402	$status
		3403	}
		3404
		3405	sub reload_regions {
		3406	# HACK to clear player env face cache, we need some signal framework
		3407	# for this (global event?)
		3408	%ext::player_env::MUSIC_FACE_CACHE = ();
		3409
		3410	load_resource_file "$MAPDIR/regions"
		3411	or die "unable to load regions file\n";
		3412
		3413	for (cf::region::list) {
		3414	$_->{match} = qr/$_->{match}/
		3415	if exists $_->{match};
		3416	}
		3417	}
		3418
		3419	sub reload_facedata {
		3420	load_facedata "$DATADIR/facedata"
		3421	or die "unable to load facedata\n";
		3422	}
		3423
		3424	sub reload_archetypes {
		3425	load_resource_file "$DATADIR/archetypes"
		3426	or die "unable to load archetypes\n";
		3427	}
		3428
		3429	sub reload_treasures {
		3430	load_resource_file "$DATADIR/treasures"
		3431	or die "unable to load treasurelists\n";
		3432	}
		3433
		3434	sub reload_resources {
		3435	warn "reloading resource files...\n";
		3436
		3437	reload_facedata;
		3438	reload_archetypes;
		3439	reload_regions;
		3440	reload_treasures;
		3441
		3442	warn "finished reloading resource files\n";
		3443	}
		3444
		3445	sub reload_config {
		3446	warn "reloading config file...\n";
		3447
		3448	open my $fh, "<:utf8", "$CONFDIR/config"
		3449	or return;
		3450
		3451	local $/;
		3452	*CFG = YAML::XS::Load scalar <$fh>;
		3453
		3454	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3455
		3456	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3457	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3458
		3459	if (exists $CFG{mlockall}) {
		3460	eval {
		3461	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3462	and die "WARNING: m(un)lockall failed: $!\n";
		3463	};
		3464	warn $@ if $@;
		3465	}
		3466
		3467	warn "finished reloading resource files\n";
		3468	}
		3469
		3470	sub pidfile() {
		3471	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3472	or die "$PIDFILE: $!";
		3473	flock $fh, &Fcntl::LOCK_EX
		3474	or die "$PIDFILE: flock: $!";
		3475	$fh
		3476	}
		3477
		3478	# make sure only one server instance is running at any one time
		3479	sub atomic {
		3480	my $fh = pidfile;
		3481
		3482	my $pid = <$fh>;
		3483	kill 9, $pid if $pid > 0;
		3484
		3485	seek $fh, 0, 0;
		3486	print $fh $$;
		3487	}
		3488
		3489	sub main_loop {
		3490	warn "EV::loop starting\n";
		3491	if (1) {
		3492	EV::loop;
		3493	}
		3494	warn "EV::loop returned\n";
		3495	goto &main_loop unless $REALLY_UNLOOP;
		3496	}
		3497
		3498	sub main {
		3499	cf::init_globals; # initialise logging
		3500
		3501	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3502	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3503	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3504	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3505
		3506	cf::init_experience;
		3507	cf::init_anim;
		3508	cf::init_attackmess;
		3509	cf::init_dynamic;
		3510
		3511	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3512
		3513	# we must not ever block the main coroutine
		3514	local $Coro::idle = sub {
		3515	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3516	(async {
		3517	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3518	EV::loop EV::LOOP_ONESHOT;
		3519	})->prio (Coro::PRIO_MAX);
		3520	};
		3521
		3522	evthread_start IO::AIO::poll_fileno;
		3523
		3524	cf::sync_job {
		3525	cf::load_settings;
		3526	cf::load_materials;
		3527
		3528	reload_resources;
		3529	reload_config;
		3530	db_init;
		3531
		3532	cf::init_uuid;
		3533	cf::init_signals;
		3534	cf::init_commands;
		3535	cf::init_skills;
		3536
		3537	cf::init_beforeplay;
		3538
		3539	atomic;
		3540
		3541	load_extensions;
		3542
		3543	utime time, time, $RUNTIMEFILE;
		3544
		3545	# no (long-running) fork's whatsoever before this point(!)
		3546	use POSIX ();
		3547	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3548
		3549	(pop @POST_INIT)->(0) while @POST_INIT;
		3550	};
		3551
		3552	main_loop;
		3553	}
		3554
		3555	#############################################################################
		3556	# initialisation and cleanup
		3557
		3558	# install some emergency cleanup handlers
		3559	BEGIN {
		3560	our %SIGWATCHER = ();
		3561	for my $signal (qw(INT HUP TERM)) {
		3562	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3563	cf::cleanup "SIG$signal";
		3564	};
		3565	}
		3566	}
		3567
		3568	sub write_runtime_sync {
		3569	# first touch the runtime file to show we are still running:
		3570	# the fsync below can take a very very long time.
		3571
		3572	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3573
		3574	my $guard = cf::lock_acquire "write_runtime";
		3575
		3576	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3577	or return;
		3578
		3579	my $value = $cf::RUNTIME + 90 + 10;
		3580	# 10 is the runtime save interval, for a monotonic clock
		3581	# 60 allows for the watchdog to kill the server.
		3582
		3583	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3584	and return;
		3585
		3586	# always fsync - this file is important
		3587	aio_fsync $fh
		3588	and return;
		3589
		3590	# touch it again to show we are up-to-date
		3591	aio_utime $fh, undef, undef;
		3592
		3593	close $fh
		3594	or return;
		3595
		3596	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3597	and return;
		3598
		3599	warn "runtime file written.\n";
		3600
		3601	1
		3602	}
		3603
		3604	our $uuid_lock;
		3605	our $uuid_skip;
		3606
		3607	sub write_uuid_sync($) {
		3608	$uuid_skip ||= $_[0];
		3609
		3610	return if $uuid_lock;
		3611	local $uuid_lock = 1;
		3612
		3613	my $uuid = "$LOCALDIR/uuid";
		3614
		3615	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3616	or return;
		3617
		3618	my $value = uuid_seq uuid_cur;
		3619
		3620	unless ($value) {
		3621	warn "cowardly refusing to write zero uuid value!\n";
		3622	return;
		3623	}
		3624
		3625	my $value = uuid_str $value + $uuid_skip;
		3626	$uuid_skip = 0;
		3627
		3628	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3629	and return;
		3630
		3631	# always fsync - this file is important
		3632	aio_fsync $fh
		3633	and return;
		3634
		3635	close $fh
		3636	or return;
		3637
		3638	aio_rename "$uuid~", $uuid
		3639	and return;
		3640
		3641	warn "uuid file written ($value).\n";
		3642
		3643	1
		3644
		3645	}
		3646
		3647	sub write_uuid($$) {
		3648	my ($skip, $sync) = @_;
		3649
		3650	$sync ? write_uuid_sync $skip
		3651	: async { write_uuid_sync $skip };
		3652	}
		3653
		3654	sub emergency_save() {
		3655	my $freeze_guard = cf::freeze_mainloop;
		3656
		3657	warn "emergency_perl_save: enter\n";
		3658
		3659	cf::sync_job {
		3660	# this is a trade-off: we want to be very quick here, so
		3661	# save all maps without fsync, and later call a global sync
		3662	# (which in turn might be very very slow)
		3663	local $USE_FSYNC = 0;
		3664
		3665	# use a peculiar iteration method to avoid tripping on perl
		3666	# refcount bugs in for. also avoids problems with players
		3667	# and maps saved/destroyed asynchronously.
		3668	warn "emergency_perl_save: begin player save\n";
		3669	for my $login (keys %cf::PLAYER) {
		3670	my $pl = $cf::PLAYER{$login} or next;
		3671	$pl->valid or next;
		3672	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3673	$pl->save;
		3674	}
		3675	warn "emergency_perl_save: end player save\n";
		3676
		3677	warn "emergency_perl_save: begin map save\n";
		3678	for my $path (keys %cf::MAP) {
		3679	my $map = $cf::MAP{$path} or next;
		3680	$map->valid or next;
		3681	$map->save;
		3682	}
		3683	warn "emergency_perl_save: end map save\n";
		3684
		3685	warn "emergency_perl_save: begin database checkpoint\n";
		3686	BDB::db_env_txn_checkpoint $DB_ENV;
		3687	warn "emergency_perl_save: end database checkpoint\n";
		3688
		3689	warn "emergency_perl_save: begin write uuid\n";
		3690	write_uuid_sync 1;
		3691	warn "emergency_perl_save: end write uuid\n";
		3692	};
		3693
		3694	warn "emergency_perl_save: starting sync()\n";
		3695	IO::AIO::aio_sync sub {
		3696	warn "emergency_perl_save: finished sync()\n";
		3697	};
		3698
		3699	warn "emergency_perl_save: leave\n";
		3700	}
		3701
		3702	sub post_cleanup {
		3703	my ($make_core) = @_;
		3704
		3705	warn Carp::longmess "post_cleanup backtrace"
		3706	if $make_core;
		3707
		3708	my $fh = pidfile;
		3709	unlink $PIDFILE if <$fh> == $$;
		3710	}
		3711
		3712	# a safer delete_package, copied from Symbol
		3713	sub clear_package($) {
		3714	my $pkg = shift;
		3715
		3716	# expand to full symbol table name if needed
		3717	unless ($pkg =~ /^main::.*::$/) {
		3718	$pkg = "main$pkg" if $pkg =~ /^::/;
		3719	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3720	$pkg .= '::' unless $pkg =~ /::$/;
		3721	}
		3722
		3723	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3724	my $stem_symtab = *{$stem}{HASH};
		3725
		3726	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3727	or return;
		3728
		3729	# clear all symbols
		3730	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3731	for my $name (keys %$leaf_symtab) {
		3732	_gv_clear *{"$pkg$name"};
		3733	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3734	}
		3735	warn "cleared package $pkg\n";#d#
		3736	}
		3737
		3738	sub do_reload_perl() {
		3739	# can/must only be called in main
		3740	if ($Coro::current != $Coro::main) {
		3741	warn "can only reload from main coroutine";
		3742	return;
		3743	}
		3744
		3745	return if $RELOAD++;
		3746
		3747	my $t1 = EV::time;
		3748
		3749	while ($RELOAD) {
		3750	warn "reloading...";
		3751
		3752	warn "entering sync_job";
		3753
		3754	cf::sync_job {
		3755	cf::write_runtime_sync; # external watchdog should not bark
		3756	cf::emergency_save;
		3757	cf::write_runtime_sync; # external watchdog should not bark
		3758
		3759	warn "syncing database to disk";
		3760	BDB::db_env_txn_checkpoint $DB_ENV;
		3761
		3762	# if anything goes wrong in here, we should simply crash as we already saved
		3763
		3764	warn "flushing outstanding aio requests";
		3765	while (IO::AIO::nreqs || BDB::nreqs) {
		3766	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3767	}
		3768
		3769	warn "cancelling all extension coros";
		3770	$_->cancel for values %EXT_CORO;
		3771	%EXT_CORO = ();
		3772
		3773	warn "removing commands";
		3774	%COMMAND = ();
		3775
		3776	warn "removing ext/exti commands";
		3777	%EXTCMD = ();
		3778	%EXTICMD = ();
		3779
		3780	warn "unloading/nuking all extensions";
		3781	for my $pkg (@EXTS) {
		3782	warn "... unloading $pkg";
		3783
		3784	if (my $cb = $pkg->can ("unload")) {
		3785	eval {
		3786	$cb->($pkg);
		3787	1
		3788	} or warn "$pkg unloaded, but with errors: $@";
		3789	}
		3790
		3791	warn "... clearing $pkg";
		3792	clear_package $pkg;
		3793	}
		3794
		3795	warn "unloading all perl modules loaded from $LIBDIR";
		3796	while (my ($k, $v) = each %INC) {
		3797	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3798
		3799	warn "... unloading $k";
		3800	delete $INC{$k};
		3801
		3802	$k =~ s/\.pm$//;
		3803	$k =~ s/\//::/g;
		3804
		3805	if (my $cb = $k->can ("unload_module")) {
		3806	$cb->();
		3807	}
		3808
		3809	clear_package $k;
		3810	}
		3811
		3812	warn "getting rid of safe::, as good as possible";
		3813	clear_package "safe::$_"
		3814	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		3815
		3816	warn "unloading cf.pm \"a bit\"";
		3817	delete $INC{"cf.pm"};
		3818	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
		3819
		3820	# don't, removes xs symbols, too,
		3821	# and global variables created in xs
		3822	#clear_package __PACKAGE__;
		3823
		3824	warn "unload completed, starting to reload now";
		3825
		3826	warn "reloading cf.pm";
		3827	require cf;
		3828	cf::_connect_to_perl_1;
		3829
		3830	warn "loading config and database again";
		3831	cf::reload_config;
		3832
		3833	warn "loading extensions";
		3834	cf::load_extensions;
		3835
		3836	if ($REATTACH_ON_RELOAD) {
		3837	warn "reattaching attachments to objects/players";
		3838	_global_reattach; # objects, sockets
		3839	warn "reattaching attachments to maps";
		3840	reattach $_ for values %MAP;
		3841	warn "reattaching attachments to players";
		3842	reattach $_ for values %PLAYER;
		3843	}
		3844
		3845	warn "running post_init jobs";
		3846	(pop @POST_INIT)->(1) while @POST_INIT;
		3847
		3848	warn "leaving sync_job";
		3849
		3850	1
		3851	} or do {
		3852	warn $@;
		3853	cf::cleanup "error while reloading, exiting.";
		3854	};
		3855
		3856	warn "reloaded";
		3857	--$RELOAD;
		3858	}
		3859
		3860	$t1 = EV::time - $t1;
		3861	warn "reload completed in ${t1}s\n";
		3862	};
		3863
		3864	our $RELOAD_WATCHER; # used only during reload
		3865
		3866	sub reload_perl() {
		3867	# doing reload synchronously and two reloads happen back-to-back,
		3868	# coro crashes during coro_state_free->destroy here.
		3869
		3870	$RELOAD_WATCHER ||= cf::async {
		3871	Coro::AIO::aio_wait cache_extensions;
		3872
		3873	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3874	do_reload_perl;
		3875	undef $RELOAD_WATCHER;
		3876	};
		3877	};
		3878	}
		3879
		3880	register_command "reload" => sub {
		3881	my ($who, $arg) = @_;
		3882
		3883	if ($who->flag (FLAG_WIZ)) {
		3884	$who->message ("reloading server.");
		3885	async {
		3886	$Coro::current->{desc} = "perl_reload";
		3887	reload_perl;
		3888	};
		3889	}
		3890	};
		3891
		3892	unshift @INC, $LIBDIR;
		3893
		3894	my $bug_warning = 0;
		3895
		3896	our @WAIT_FOR_TICK;
		3897	our @WAIT_FOR_TICK_BEGIN;
		3898
		3899	sub wait_for_tick {
		3900	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3901
		3902	my $signal = new Coro::Signal;
		3903	push @WAIT_FOR_TICK, $signal;
		3904	$signal->wait;
		3905	}
		3906
		3907	sub wait_for_tick_begin {
		3908	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3909
		3910	my $signal = new Coro::Signal;
		3911	push @WAIT_FOR_TICK_BEGIN, $signal;
		3912	$signal->wait;
		3913	}
		3914
		3915	sub tick {
		3916	if ($Coro::current != $Coro::main) {
		3917	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3918	unless ++$bug_warning > 10;
		3919	return;
		3920	}
		3921
		3922	cf::server_tick; # one server iteration
		3923
		3924	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
		3925
		3926	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3927	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3928	Coro::async_pool {
		3929	$Coro::current->{desc} = "runtime saver";
		3930	write_runtime_sync
		3931	or warn "ERROR: unable to write runtime file: $!";
		3932	};
		3933	}
		3934
		3935	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3936	$sig->send;
		3937	}
		3938	while (my $sig = shift @WAIT_FOR_TICK) {
		3939	$sig->send;
		3940	}
		3941
		3942	$LOAD = ($NOW - $TICK_START) / $TICK;
		3943	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3944
		3945	if (0) {
		3946	if ($NEXT_TICK) {
		3947	my $jitter = $TICK_START - $NEXT_TICK;
		3948	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3949	warn "jitter $JITTER\n";#d#
		3950	}
		3951	}
		3952	}
1090		3953
1091	{	3954	{
1092	my $path = cf::localdir . "/database.pst";	3955	# configure BDB
1093		3956
1094	sub db_load() {	3957	BDB::min_parallel 16;
1095	warn "loading database $path\n";#d# remove later	3958	BDB::max_poll_reqs $TICK * 0.1;
1096	$DB = stat $path ? Storable::retrieve $path : { };	3959	$AnyEvent::BDB::WATCHER->priority (1);
1097	}
1098		3960
1099	my $pid;	3961	unless ($DB_ENV) {
		3962	$DB_ENV = BDB::db_env_create;
		3963	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3964	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3965	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3966	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3967	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
1100		3968
1101	sub db_save() {	3969	cf::sync_job {
1102	warn "saving database $path\n";#d# remove later
1103	waitpid $pid, 0 if $pid;
1104	if (0 == ($pid = fork)) {
1105	$DB->{_meta}{version} = 1;
1106	Storable::nstore $DB, "$path~";
1107	rename "$path~", $path;
1108	cf::_exit 0 if defined $pid;
1109	}
1110	}
1111
1112	my $dirty;
1113
1114	sub db_sync() {
1115	db_save if $dirty;
1116	undef $dirty;
1117	}
1118
1119	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1120	db_sync;
1121	});
1122
1123	sub db_dirty() {
1124	$dirty = 1;
1125	$idle->start;
1126	}
1127
1128	sub db_get($;$) {
1129	@_ >= 2
1130	? $DB->{$_[0]}{$_[1]}
1131	: ($DB->{$_[0]} ||= { })
1132	}
1133
1134	sub db_put($$;$) {
1135	if (@_ >= 3) {
1136	$DB->{$_[0]}{$_[1]} = $_[2];
1137	} else {	3970	eval {
1138	$DB->{$_[0]} = $_[1];	3971	BDB::db_env_open
1139	}	3972	$DB_ENV,
1140	db_dirty;	3973	$BDBDIR,
1141	}	3974	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3975	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3976	0666;
1142		3977
1143	cf::global->attach (	3978	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1144	prio => 10000,
1145	on_cleanup => sub {
1146	db_sync;
1147	},
1148	);
1149	}
1150
1151	#############################################################################
1152	# the server's main()
1153
1154	sub cfg_load {
1155	open my $fh, "<:utf8", cf::confdir . "/config"
1156	or return;
1157
1158	local $/;
1159	*CFG = YAML::Syck::Load <$fh>;
1160	}
1161
1162	sub main {
1163	cfg_load;
1164	db_load;
1165	load_extensions;
1166	Event::loop;
1167	}
1168
1169	#############################################################################
1170	# initialisation
1171
1172	sub _perl_reload(&) {
1173	my ($msg) = @_;
1174
1175	$msg->("reloading...");
1176
1177	eval {
1178	# cancel all watchers
1179	for (Event::all_watchers) {
1180	$_->cancel if $_->data & WF_AUTOCANCEL;
1181	}
1182
1183	# unload all extensions
1184	for (@exts) {
1185	$msg->("unloading <$_>");
1186	unload_extension $_;
1187	}
1188
1189	# unload all modules loaded from $LIBDIR
1190	while (my ($k, $v) = each %INC) {
1191	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1192
1193	$msg->("removing <$k>");
1194	delete $INC{$k};
1195
1196	$k =~ s/\.pm$//;
1197	$k =~ s/\//::/g;
1198
1199	if (my $cb = $k->can ("unload_module")) {
1200	$cb->();
1201	}	3979	};
1202		3980
1203	Symbol::delete_package $k;	3981	cf::cleanup "db_env_open(db): $@" if $@;
1204	}	3982	};
		3983	}
1205		3984
1206	# sync database to disk	3985	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1207	cf::db_sync;	3986	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1208
1209	# get rid of safe::, as good as possible
1210	Symbol::delete_package "safe::$_"
1211	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);
1212
1213	# remove register_script_function callbacks
1214	# TODO
1215
1216	# unload cf.pm "a bit"
1217	delete $INC{"cf.pm"};
1218
1219	# don't, removes xs symbols, too,
1220	# and global variables created in xs
1221	#Symbol::delete_package __PACKAGE__;
1222
1223	# reload cf.pm
1224	$msg->("reloading cf.pm");
1225	require cf;
1226	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1227
1228	# load config and database again
1229	cf::cfg_load;
1230	cf::db_load;
1231
1232	# load extensions
1233	$msg->("load extensions");
1234	cf::load_extensions;
1235
1236	# reattach attachments to objects
1237	$msg->("reattach");
1238	_global_reattach;
1239	};	3987	};
1240	$msg->($@) if $@;	3988	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1241		3989	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1242	$msg->("reloaded");
1243	};
1244
1245	sub perl_reload() {
1246	_perl_reload {
1247	warn $_[0];
1248	print "$_[0]\n";
1249	};	3990	};
		3991	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3992	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3993	};
1250	}	3994	}
1251		3995
1252	register "<global>", __PACKAGE__;	3996	{
		3997	# configure IO::AIO
1253		3998
1254	register_command "perl-reload" => sub {	3999	IO::AIO::min_parallel 8;
		4000	IO::AIO::max_poll_time $TICK * 0.1;
		4001	undef $AnyEvent::AIO::WATCHER;
		4002	}
		4003
		4004	my $_log_backtrace;
		4005
		4006	sub _log_backtrace {
1255	my ($who, $arg) = @_;	4007	my ($msg, @addr) = @_;
1256		4008
1257	if ($who->flag (FLAG_WIZ)) {	4009	$msg =~ s/\n//;
1258	_perl_reload {	4010
1259	warn $_[0];	4011	# limit the # of concurrent backtraces
1260	$who->message ($_[0]);	4012	if ($_log_backtrace < 2) {
		4013	++$_log_backtrace;
		4014	my $perl_bt = Carp::longmess $msg;
		4015	async {
		4016	$Coro::current->{desc} = "abt $msg";
		4017
		4018	my @bt = fork_call {
		4019	@addr = map { sprintf "%x", $_ } @addr;
		4020	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4021	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4022	or die "addr2line: $!";
		4023
		4024	my @funcs;
		4025	my @res = <$fh>;
		4026	chomp for @res;
		4027	while (@res) {
		4028	my ($func, $line) = splice @res, 0, 2, ();
		4029	push @funcs, "[$func] $line";
		4030	}
		4031
		4032	@funcs
		4033	};
		4034
		4035	LOG llevInfo, "[ABT] $perl_bt\n";
		4036	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4037	LOG llevInfo, "[ABT] $_\n" for @bt;
		4038	--$_log_backtrace;
1261	};	4039	};
1262	}	4040	} else {
1263	};	4041	LOG llevInfo, "[ABT] $msg\n";
1264		4042	LOG llevInfo, "[ABT] [suppressed]\n";
1265	unshift @INC, $LIBDIR;
1266
1267	$TICK_WATCHER = Event->timer (
1268	prio => 0,
1269	at => $NEXT_TICK || 1,
1270	data => WF_AUTOCANCEL,
1271	cb => sub {
1272	cf::server_tick; # one server iteration
1273
1274	my $NOW = Event::time;
1275	$NEXT_TICK += $TICK;
1276
1277	# if we are delayed by four ticks or more, skip them all
1278	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1279
1280	$TICK_WATCHER->at ($NEXT_TICK);
1281	$TICK_WATCHER->start;
1282	},	4043	}
1283	);	4044	}
1284		4045
1285	IO::AIO::max_poll_time $TICK * 0.2;	4046	# load additional modules
		4047	require "cf/$_.pm" for @EXTRA_MODULES;
		4048	cf::_connect_to_perl_2;
1286		4049
1287	Event->io (fd => IO::AIO::poll_fileno,	4050	END { cf::emergency_save }
1288	poll => 'r',
1289	prio => 5,
1290	data => WF_AUTOCANCEL,
1291	cb => \&IO::AIO::poll_cb);
1292		4051
1293	1	4052	1
1294		4053

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