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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 1.520 by root, Fri Apr 16 02:37:50 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 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 $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
		115
		116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
41	our $NEXT_TICK;	118	our $NEXT_TICK;
		119	our $USE_FSYNC = 1; # use fsync to write maps - default on
		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
		123	our $BDB_TRICKLE_WATCHER;
		124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
42		127
43	our %CFG;	128	our %CFG;
44		129
45	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
		131	our $RUNTIME;
		132	our $NOW;
		133
		134	our (%PLAYER, %PLAYER_LOADING); # all users
		135	our (%MAP, %MAP_LOADING ); # all maps
		136	our $LINK_MAP; # the special {link} map, which is always available
		137
		138	# used to convert map paths into valid unix filenames by replacing / by ∕
		139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		140
		141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
		144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
		150
		151	binmode STDOUT;
		152	binmode STDERR;
		153
		154	# read virtual server time, if available
		155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
		156	open my $fh, "<", $RUNTIMEFILE
		157	or die "unable to read $RUNTIMEFILE file: $!";
		158	$RUNTIME = <$fh> + 0.;
		159	}
		160
		161	eval "sub TICK() { $TICK } 1" or die;
		162
		163	mkdir $_
		164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		165
		166	our $EMERGENCY_POSITION;
		167
		168	sub cf::map::normalise;
46		169
47	#############################################################################	170	#############################################################################
48		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		180
		181	#############################################################################
		182
49	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
50		184
51	=over 4	185	=over 4
52		186
53	=item $cf::UPTIME	187	=item $cf::UPTIME
54		188
55	The timestamp of the server start (so not actually an uptime).	189	The timestamp of the server start (so not actually an uptime).
56		190
57	=item $cf::LIBDIR	191	=item $cf::RUNTIME
58		192
59	The perl library directory, where extensions and cf-specific modules can	193	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.	194	every server tick.
		195
		196	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		197	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		198	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
		199
		200	Various directories - "/etc", read-only install directory, perl-library
		201	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		202	unique-items directory, player file directory, random maps directory and
		203	database environment.
		204
		205	=item $cf::NOW
		206
		207	The time of the last (current) server tick.
61		208
62	=item $cf::TICK	209	=item $cf::TICK
63		210
64	The interval between server ticks, in seconds.	211	The interval between server ticks, in seconds.
65		212
		213	=item $cf::LOADAVG
		214
		215	The current CPU load on the server (alpha-smoothed), as a value between 0
		216	(none) and 1 (overloaded), indicating how much time is spent on processing
		217	objects per tick. Healthy values are < 0.5.
		218
		219	=item $cf::LOAD
		220
		221	The raw value load value from the last tick.
		222
66	=item %cf::CFG	223	=item %cf::CFG
67		224
68	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
69	from wherever your confdir points to.	226	from wherever your confdir points to.
70		227
		228	=item cf::wait_for_tick, cf::wait_for_tick_begin
		229
		230	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		231	returns directly I<after> the tick processing (and consequently, can only wake one process
		232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
		245
71	=back	246	=back
72		247
73	=cut	248	=cut
74		249
75	BEGIN {	250	$Coro::State::WARNHOOK = sub {
76	*CORE::GLOBAL::warn = sub {
77	my $msg = join "", @_;	251	my $msg = join "", @_;
		252
78	$msg .= "\n"	253	$msg .= "\n"
79	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
80		255
81	print STDERR "cfperl: $msg";	256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		257
82	LOG llevError, "cfperl: $msg";	258	LOG llevError, $msg;
83	};	259	};
84	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
85		274
86	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
87	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
88	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
89	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
90	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	279	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		280	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
91	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	281	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
92		282
93	# we bless all objects into (empty) derived classes to force a method lookup	283	# we bless all objects into (empty) derived classes to force a method lookup
94	# within the Safe compartment.	284	# within the Safe compartment.
95	for my $pkg (qw(	285	for my $pkg (qw(
96	cf::global cf::attachable	286	cf::global cf::attachable
97	cf::object cf::object::player	287	cf::object cf::object::player
98	cf::client cf::player	288	cf::client cf::player
99	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
100	cf::map cf::party cf::region	291	cf::party cf::region
101	)) {	292	)) {
102	no strict 'refs';
103	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
104	}	294	}
105		295
106	$Event::DIED = sub {	296	$EV::DIED = sub {
107	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
108	};	298	};
109		299
110	my %ext_pkg;	300	#############################################################################
111	my @exts;
112	my @hook;
113		301
114	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
115		303
116	=over 4	304	=over 4
117		305
118	=cut	306	=item dumpval $ref
119		307
120	use JSON::Syck (); # TODO# replace by JSON::PC once working	308	=cut
121		309
		310	sub dumpval {
		311	eval {
		312	local $SIG{__DIE__};
		313	my $d;
		314	if (1) {
		315	$d = new Data::Dumper([$_[0]], ["*var"]);
		316	$d->Terse(1);
		317	$d->Indent(2);
		318	$d->Quotekeys(0);
		319	$d->Useqq(1);
		320	#$d->Bless(...);
		321	$d->Seen($_[1]) if @_ > 1;
		322	$d = $d->Dump();
		323	}
		324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		325	$d
		326	} || "[unable to dump $_[0]: '$@']";
		327	}
		328
122	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
123		330
124	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
125		332
126	=cut
127
128	sub from_json($) {
129	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
130	JSON::Syck::Load $_[0]
131	}
132
133	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
134		334
135	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
136		336
137	=cut	337	=cut
138		338
139	sub to_json($) {	339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
140	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	340
141	JSON::Syck::Dump $_[0]	341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
		343
		344	=item cf::post_init { BLOCK }
		345
		346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		347	but I<before> the server starts ticking again.
		348
		349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
		351
		352	=cut
		353
		354	sub post_init(&) {
		355	push @POST_INIT, shift;
		356	}
		357
		358	=item cf::lock_wait $string
		359
		360	Wait until the given lock is available. See cf::lock_acquire.
		361
		362	=item my $lock = cf::lock_acquire $string
		363
		364	Wait until the given lock is available and then acquires it and returns
		365	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		366	for example when the coroutine gets canceled), the lock is automatically
		367	returned.
		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
		372	Lock names should begin with a unique identifier (for example, cf::map::find
		373	uses map_find and cf::map::load uses map_load).
		374
		375	=item $locked = cf::lock_active $string
		376
		377	Return true if the lock is currently active, i.e. somebody has locked it.
		378
		379	=cut
		380
		381	our $LOCKS = new Coro::SemaphoreSet;
		382
		383	sub lock_wait($) {
		384	$LOCKS->wait ($_[0]);
		385	}
		386
		387	sub lock_acquire($) {
		388	$LOCKS->guard ($_[0])
		389	}
		390
		391	sub lock_active($) {
		392	$LOCKS->count ($_[0]) < 1
		393	}
		394
		395	sub freeze_mainloop {
		396	tick_inhibit_inc;
		397
		398	&Guard::guard (\&tick_inhibit_dec);
		399	}
		400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over time.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
		465	}
		466	};
		467
		468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
		481	}
		482
		483	=item cf::async { BLOCK }
		484
		485	Currently the same as Coro::async_pool, meaning you cannot use
		486	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		487	thing you are allowed to do is call C<prio> on it.
		488
		489	=cut
		490
		491	BEGIN { *async = \&Coro::async_pool }
		492
		493	=item cf::sync_job { BLOCK }
		494
		495	The design of Deliantra requires that the main coroutine ($Coro::main)
		496	is always able to handle events or runnable, as Deliantra is only
		497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
		499
		500	If it must be done, put the blocking parts into C<sync_job>. This will run
		501	the given BLOCK in another coroutine while waiting for the result. The
		502	server will be frozen during this time, so the block should either finish
		503	fast or be very important.
		504
		505	=cut
		506
		507	sub sync_job(&) {
		508	my ($job) = @_;
		509
		510	if ($Coro::current == $Coro::main) {
		511	my $time = AE::time;
		512
		513	# this is the main coro, too bad, we have to block
		514	# till the operation succeeds, freezing the server :/
		515
		516	LOG llevError, Carp::longmess "sync job";#d#
		517
		518	my $freeze_guard = freeze_mainloop;
		519
		520	my $busy = 1;
		521	my @res;
		522
		523	(async {
		524	$Coro::current->desc ("sync job coro");
		525	@res = eval { $job->() };
		526	warn $@ if $@;
		527	undef $busy;
		528	})->prio (Coro::PRIO_MAX);
		529
		530	while ($busy) {
		531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
		535	}
		536	}
		537
		538	my $time = AE::time - $time;
		539
		540	$TICK_START += $time; # do not account sync jobs to server load
		541
		542	wantarray ? @res : $res[0]
		543	} else {
		544	# we are in another coroutine, how wonderful, everything just works
		545
		546	$job->()
		547	}
		548	}
		549
		550	=item $coro = cf::async_ext { BLOCK }
		551
		552	Like async, but this coro is automatically being canceled when the
		553	extension calling this is being unloaded.
		554
		555	=cut
		556
		557	sub async_ext(&) {
		558	my $cb = shift;
		559
		560	my $coro = &Coro::async ($cb);
		561
		562	$coro->on_destroy (sub {
		563	delete $EXT_CORO{$coro+0};
		564	});
		565	$EXT_CORO{$coro+0} = $coro;
		566
		567	$coro
		568	}
		569
		570	=item fork_call { }, $args
		571
		572	Executes the given code block with the given arguments in a seperate
		573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
		576
		577	=cut
		578
		579	sub fork_call(&@) {
		580	my ($cb, @args) = @_;
		581
		582	# we seemingly have to make a local copy of the whole thing,
		583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
		585
		586	my @res = Coro::Util::fork_eval {
		587	reset_signals;
		588	&$cb
		589	}, @args;
		590
		591	wantarray ? @res : $res[-1]
		592	}
		593
		594	sub objinfo {
		595	(
		596	"counter value" => cf::object::object_count,
		597	"objects created" => cf::object::create_count,
		598	"objects destroyed" => cf::object::destroy_count,
		599	"freelist size" => cf::object::free_count,
		600	"allocated objects" => cf::object::objects_size,
		601	"active objects" => cf::object::actives_size,
		602	)
		603	}
		604
		605	=item $coin = coin_from_name $name
		606
		607	=cut
		608
		609	our %coin_alias = (
		610	"silver" => "silvercoin",
		611	"silvercoin" => "silvercoin",
		612	"silvercoins" => "silvercoin",
		613	"gold" => "goldcoin",
		614	"goldcoin" => "goldcoin",
		615	"goldcoins" => "goldcoin",
		616	"platinum" => "platinacoin",
		617	"platinumcoin" => "platinacoin",
		618	"platinumcoins" => "platinacoin",
		619	"platina" => "platinacoin",
		620	"platinacoin" => "platinacoin",
		621	"platinacoins" => "platinacoin",
		622	"royalty" => "royalty",
		623	"royalties" => "royalty",
		624	);
		625
		626	sub coin_from_name($) {
		627	$coin_alias{$_[0]}
		628	? cf::arch::find $coin_alias{$_[0]}
		629	: undef
		630	}
		631
		632	=item $value = cf::db_get $family => $key
		633
		634	Returns a single value from the environment database.
		635
		636	=item cf::db_put $family => $key => $value
		637
		638	Stores the given C<$value> in the family. It can currently store binary
		639	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		640
		641	=item $db = cf::db_table "name"
		642
		643	Create and/or open a new database table. The string must not be "db" and must be unique
		644	within each server.
		645
		646	=cut
		647
		648	sub db_table($) {
		649	my ($name) = @_;
		650	my $db = BDB::db_create $DB_ENV;
		651
		652	eval {
		653	$db->set_flags (BDB::CHKSUM);
		654
		655	utf8::encode $name;
		656	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		657	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		658	cf::cleanup "db_open(db): $!" if $!;
		659	};
		660	cf::cleanup "db_open(db): $@" if $@;
		661
		662	$db
		663	}
		664
		665	our $DB;
		666
		667	sub db_init {
		668	cf::sync_job {
		669	$DB ||= db_table "db";
		670	};
		671	}
		672
		673	sub db_get($$) {
		674	my $key = "$_[0]/$_[1]";
		675
		676	cf::sync_job {
		677	BDB::db_get $DB, undef, $key, my $data;
		678
		679	$! ? ()
		680	: $data
		681	}
		682	}
		683
		684	sub db_put($$$) {
		685	BDB::dbreq_pri 4;
		686	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		687	}
		688
		689	=item cf::cache $id => [$paths...], $processversion => $process
		690
		691	Generic caching function that returns the value of the resource $id,
		692	caching and regenerating as required.
		693
		694	This function can block.
		695
		696	=cut
		697
		698	sub cache {
		699	my ($id, $src, $processversion, $process) = @_;
		700
		701	my $meta =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	aio_stat $_
		706	and Carp::croak "$_: $!";
		707
		708	($_, (stat _)[7,9])
		709	} @$src;
		710
		711	my $dbmeta = db_get cache => "$id/meta";
		712	if ($dbmeta ne $meta) {
		713	# changed, we may need to process
		714
		715	my @data;
		716	my $md5;
		717
		718	for (0 .. $#$src) {
		719	0 <= aio_load $src->[$_], $data[$_]
		720	or Carp::croak "$src->[$_]: $!";
		721	}
		722
		723	# if processing is expensive, check
		724	# checksum first
		725	if (1) {
		726	$md5 =
		727	join "\x00",
		728	$processversion,
		729	map {
		730	cf::cede_to_tick;
		731	($src->[$_], Digest::MD5::md5_hex $data[$_])
		732	} 0.. $#$src;
		733
		734
		735	my $dbmd5 = db_get cache => "$id/md5";
		736	if ($dbmd5 eq $md5) {
		737	db_put cache => "$id/meta", $meta;
		738
		739	return db_get cache => "$id/data";
		740	}
		741	}
		742
		743	my $t1 = Time::HiRes::time;
		744	my $data = $process->(\@data);
		745	my $t2 = Time::HiRes::time;
		746
		747	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		748
		749	db_put cache => "$id/data", $data;
		750	db_put cache => "$id/md5" , $md5;
		751	db_put cache => "$id/meta", $meta;
		752
		753	return $data;
		754	}
		755
		756	db_get cache => "$id/data"
		757	}
		758
		759	=item cf::datalog type => key => value, ...
		760
		761	Log a datalog packet of the given type with the given key-value pairs.
		762
		763	=cut
		764
		765	sub datalog($@) {
		766	my ($type, %kv) = @_;
		767	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
142	}	768	}
143		769
144	=back	770	=back
145		771
146	=cut	772	=cut
147		773
148	#############################################################################	774	#############################################################################
149		775
150	=head2 ATTACHABLE OBJECTS	776	=head2 ATTACHABLE OBJECTS
151		777
152	Many objects in crossfire are so-called attachable objects. That means you can	778	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")	779	attach callbacks/event handlers (a collection of which is called an "attachment")
154	to it. All such attachable objects support the following methods.	780	to it. All such attachable objects support the following methods.
155		781
156	In the following description, CLASS can be any of C<global>, C<object>	782	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	783	C<player>, C<client> or C<map> (i.e. the attachable objects in
158	crossfire+).	784	Deliantra).
159		785
160	=over 4	786	=over 4
161		787
162	=item $attachable->attach ($attachment, key => $value...)	788	=item $attachable->attach ($attachment, key => $value...)
163		789
…		…
207	=item cf::CLASS::attachment $name, ...	833	=item cf::CLASS::attachment $name, ...
208		834
209	Register an attachment by C<$name> through which attachable objects of the	835	Register an attachment by C<$name> through which attachable objects of the
210	given CLASS can refer to this attachment.	836	given CLASS can refer to this attachment.
211		837
212	Some classes such as crossfire maps and objects can specify attachments	838	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.	839	that are attached at load/instantiate time, thus the need for a name.
214		840
215	These calls expect any number of the following handler/hook descriptions:	841	These calls expect any number of the following handler/hook descriptions:
216		842
217	=over 4	843	=over 4
…		…
277	our @CB_TYPE = (); # registry for type (cf-object class) based events	903	our @CB_TYPE = (); # registry for type (cf-object class) based events
278	our @CB_MAP = ();	904	our @CB_MAP = ();
279		905
280	my %attachment;	906	my %attachment;
281		907
		908	sub cf::attachable::thawer_merge {
		909	# simply override everything except _meta
		910	local $_[0]{_meta};
		911	%{$_[0]} = %{$_[1]};
		912	}
		913
282	sub _attach_cb($$$$) {	914	sub _attach_cb($$$$) {
283	my ($registry, $event, $prio, $cb) = @_;	915	my ($registry, $event, $prio, $cb) = @_;
284		916
285	use sort 'stable';	917	use sort 'stable';
286		918
…		…
320	$registry = $CB_TYPE[$object_type] ||= [];	952	$registry = $CB_TYPE[$object_type] ||= [];
321		953
322	} elsif ($type eq "subtype") {	954	} elsif ($type eq "subtype") {
323	defined $object_type or Carp::croak "subtype specified without type";	955	defined $object_type or Carp::croak "subtype specified without type";
324	my $object_subtype = shift @arg;	956	my $object_subtype = shift @arg;
325	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	957	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
326		958
327	} elsif ($type eq "package") {	959	} elsif ($type eq "package") {
328	my $pkg = shift @arg;	960	my $pkg = shift @arg;
329		961
330	while (my ($name, $id) = each %cb_id) {	962	while (my ($name, $id) = each %cb_id) {
…		…
359	_attach $registry, $klass, @attach;	991	_attach $registry, $klass, @attach;
360	}	992	}
361		993
362	$obj->{$name} = \%arg;	994	$obj->{$name} = \%arg;
363	} else {	995	} else {
364	warn "object uses attachment '$name' that is not available, postponing.\n";	996	warn "object uses attachment '$name' which is not available, postponing.\n";
365	}	997	}
366		998
367	$obj->{_attachment}{$name} = undef;	999	$obj->{_attachment}{$name} = undef;
368	}	1000	}
369		1001
…		…
371	if (ref $_[0]) {	1003	if (ref $_[0]) {
372	_object_attach @_;	1004	_object_attach @_;
373	} else {	1005	} else {
374	_attach shift->_attach_registry, @_;	1006	_attach shift->_attach_registry, @_;
375	}	1007	}
		1008	_recalc_want;
376	};	1009	};
377		1010
378	# all those should be optimised	1011	# all those should be optimised
379	sub cf::attachable::detach {	1012	sub cf::attachable::detach {
380	my ($obj, $name) = @_;	1013	my ($obj, $name) = @_;
…		…
383	delete $obj->{_attachment}{$name};	1016	delete $obj->{_attachment}{$name};
384	reattach ($obj);	1017	reattach ($obj);
385	} else {	1018	} else {
386	Carp::croak "cannot, currently, detach class attachments";	1019	Carp::croak "cannot, currently, detach class attachments";
387	}	1020	}
		1021	_recalc_want;
388	};	1022	};
389		1023
390	sub cf::attachable::attached {	1024	sub cf::attachable::attached {
391	my ($obj, $name) = @_;	1025	my ($obj, $name) = @_;
392		1026
…		…
407	";	1041	";
408	die if $@;	1042	die if $@;
409	}	1043	}
410		1044
411	our $override;	1045	our $override;
412	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1046	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
413		1047
414	sub override {	1048	sub override {
415	$override = 1;	1049	$override = 1;
416	@invoke_results = ();	1050	@INVOKE_RESULTS = (@_);
417	}	1051	}
418		1052
419	sub do_invoke {	1053	sub do_invoke {
420	my $event = shift;	1054	my $event = shift;
421	my $callbacks = shift;	1055	my $callbacks = shift;
422		1056
423	@invoke_results = ();	1057	@INVOKE_RESULTS = ();
424		1058
425	local $override;	1059	local $override;
426		1060
427	for (@$callbacks) {	1061	for (@$callbacks) {
428	eval { &{$_->[1]} };	1062	eval { &{$_->[1]} };
…		…
437	}	1071	}
438		1072
439	0	1073	0
440	}	1074	}
441		1075
442	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1076	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
443		1077
444	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1078	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
445		1079
446	Generate an object-specific event with the given arguments.	1080	Generate an object-specific event with the given arguments.
447		1081
448	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1082	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	1083	removed in future versions), and there is no public API to access override
450	results (if you must, access C<@cf::invoke_results> directly).	1084	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
451		1085
452	=back	1086	=back
453		1087
454	=cut	1088	=cut
455		1089
456	#############################################################################	1090	#############################################################################
457	# object support	1091	# object support
		1092
		1093	sub _object_equal($$);
		1094	sub _object_equal($$) {
		1095	my ($a, $b) = @_;
		1096
		1097	return 0 unless (ref $a) eq (ref $b);
		1098
		1099	if ("HASH" eq ref $a) {
		1100	my @ka = keys %$a;
		1101	my @kb = keys %$b;
		1102
		1103	return 0 if @ka != @kb;
		1104
		1105	for (0 .. $#ka) {
		1106	return 0 unless $ka[$_] eq $kb[$_];
		1107	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1108	}
		1109
		1110	} elsif ("ARRAY" eq ref $a) {
		1111
		1112	return 0 if @$a != @$b;
		1113
		1114	for (0 .. $#$a) {
		1115	return 0 unless _object_equal $a->[$_], $b->[$_];
		1116	}
		1117
		1118	} elsif ($a ne $b) {
		1119	return 0;
		1120	}
		1121
		1122	1
		1123	}
		1124
		1125	our $SLOW_MERGES;#d#
		1126	sub _can_merge {
		1127	my ($ob1, $ob2) = @_;
		1128
		1129	++$SLOW_MERGES;#d#
		1130
		1131	# we do the slow way here
		1132	return _object_equal $ob1, $ob2
		1133	}
		1134
		1135	sub reattach {
		1136	# basically do the same as instantiate, without calling instantiate
		1137	my ($obj) = @_;
		1138
		1139	# no longer needed after getting rid of delete_package?
		1140	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
		1141
		1142	my $registry = $obj->registry;
		1143
		1144	@$registry = ();
		1145
		1146	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} };
		1147
		1148	for my $name (keys %{ $obj->{_attachment} || {} }) {
		1149	if (my $attach = $attachment{$name}) {
		1150	for (@$attach) {
		1151	my ($klass, @attach) = @$_;
		1152	_attach $registry, $klass, @attach;
		1153	}
		1154	} else {
		1155	warn "object uses attachment '$name' that is not available, postponing.\n";
		1156	}
		1157	}
		1158	}
458		1159
459	cf::attachable->attach (	1160	cf::attachable->attach (
460	prio => -1000000,	1161	prio => -1000000,
461	on_instantiate => sub {	1162	on_instantiate => sub {
462	my ($obj, $data) = @_;	1163	my ($obj, $data) = @_;
463		1164
464	$data = from_json $data;	1165	$data = decode_json $data;
465		1166
466	for (@$data) {	1167	for (@$data) {
467	my ($name, $args) = @$_;	1168	my ($name, $args) = @$_;
468		1169
469	$obj->attach ($name, %{$args || {} });	1170	$obj->attach ($name, %{$args || {} });
470	}	1171	}
471	},	1172	},
472	on_reattach => sub {	1173	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 {	1174	on_clone => sub {
493	my ($src, $dst) = @_;	1175	my ($src, $dst) = @_;
494		1176
495	@{$dst->registry} = @{$src->registry};	1177	@{$dst->registry} = @{$src->registry};
496		1178
…		…
502	);	1184	);
503		1185
504	sub object_freezer_save {	1186	sub object_freezer_save {
505	my ($filename, $rdata, $objs) = @_;	1187	my ($filename, $rdata, $objs) = @_;
506		1188
		1189	sync_job {
507	if (length $$rdata) {	1190	if (length $$rdata) {
		1191	utf8::decode (my $decname = $filename);
508	warn sprintf "saving %s (%d,%d)\n",	1192	warn sprintf "saving %s (%d,%d)\n",
509	$filename, length $$rdata, scalar @$objs;	1193	$decname, length $$rdata, scalar @$objs;
510		1194
511	if (open my $fh, ">:raw", "$filename~") {	1195	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
512	chmod SAVE_MODE, $fh;
513	syswrite $fh, $$rdata;
514	close $fh;
515
516	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
517	chmod SAVE_MODE, $fh;	1196	aio_chmod $fh, SAVE_MODE;
518	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };	1197	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1198	if ($cf::USE_FSYNC) {
		1199	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;
		1200	aio_fsync $fh;
		1201	}
519	close $fh;	1202	aio_close $fh;
		1203
		1204	if (@$objs) {
		1205	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
		1206	aio_chmod $fh, SAVE_MODE;
		1207	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
		1208	aio_write $fh, 0, (length $data), $data, 0;
		1209	if ($cf::USE_FSYNC) {
		1210	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;
		1211	aio_fsync $fh;
		1212	}
		1213	aio_close $fh;
520	rename "$filename.pst~", "$filename.pst";	1214	aio_rename "$filename.pst~", "$filename.pst";
		1215	}
		1216	} else {
		1217	aio_unlink "$filename.pst";
		1218	}
		1219
		1220	aio_rename "$filename~", $filename;
		1221
		1222	$filename =~ s%/[^/]+$%%;
		1223	aio_pathsync $filename if $cf::USE_FSYNC;
521	} else {	1224	} else {
522	unlink "$filename.pst";	1225	warn "unable to save objects: $filename~: $!\n";
523	}	1226	}
524
525	rename "$filename~", $filename;
526	} else {	1227	} else {
527	warn "FATAL: $filename~: $!\n";
528	}
529	} else {
530	unlink $filename;	1228	aio_unlink $filename;
531	unlink "$filename.pst";	1229	aio_unlink "$filename.pst";
		1230	}
532	}	1231	};
533	}	1232	}
534		1233
535	sub object_freezer_as_string {	1234	sub object_freezer_as_string {
536	my ($rdata, $objs) = @_;	1235	my ($rdata, $objs) = @_;
537		1236
…		…
541	}	1240	}
542		1241
543	sub object_thawer_load {	1242	sub object_thawer_load {
544	my ($filename) = @_;	1243	my ($filename) = @_;
545		1244
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, $av);	1245	my ($data, $av);
557	}
558		1246
559	()	1247	(aio_load $filename, $data) >= 0
		1248	or return;
		1249
		1250	unless (aio_stat "$filename.pst") {
		1251	(aio_load "$filename.pst", $av) >= 0
		1252	or return;
		1253
		1254	my $st = eval { Coro::Storable::thaw $av };
		1255	$av = $st->{objs};
		1256	}
		1257
		1258	utf8::decode (my $decname = $filename);
		1259	warn sprintf "loading %s (%d,%d)\n",
		1260	$decname, length $data, scalar @{$av || []};
		1261
		1262	($data, $av)
560	}	1263	}
		1264
		1265	=head2 COMMAND CALLBACKS
		1266
		1267	=over 4
		1268
		1269	=cut
561		1270
562	#############################################################################	1271	#############################################################################
563	# command handling &c	1272	# command handling &c
564		1273
565	=item cf::register_command $name => \&callback($ob,$args);	1274	=item cf::register_command $name => \&callback($ob,$args);
…		…
578	push @{ $COMMAND{$name} }, [$caller, $cb];	1287	push @{ $COMMAND{$name} }, [$caller, $cb];
579	}	1288	}
580		1289
581	=item cf::register_extcmd $name => \&callback($pl,$packet);	1290	=item cf::register_extcmd $name => \&callback($pl,$packet);
582		1291
583	Register a callbackf ro execution when the client sends an extcmd packet.	1292	Register a callback for execution when the client sends an (synchronous)
		1293	extcmd packet. Ext commands will be processed in the order they are
		1294	received by the server, like other user commands. The first argument is
		1295	the logged-in player. Ext commands can only be processed after a player
		1296	has logged in successfully.
584		1297
585	If the callback returns something, it is sent back as if reply was being	1298	If the callback returns something, it is sent back as if reply was being
586	called.	1299	called.
587		1300
		1301	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1302
		1303	Register a callback for execution when the client sends an (asynchronous)
		1304	exticmd packet. Exti commands are processed by the server as soon as they
		1305	are received, i.e. out of order w.r.t. other commands. The first argument
		1306	is a client socket. Exti commands can be received anytime, even before
		1307	log-in.
		1308
		1309	If the callback returns something, it is sent back as if reply was being
		1310	called.
		1311
588	=cut	1312	=cut
589		1313
590	sub register_extcmd {	1314	sub register_extcmd {
591	my ($name, $cb) = @_;	1315	my ($name, $cb) = @_;
592		1316
593	my $caller = caller;
594	#warn "registering extcmd '$name' to '$caller'";
595
596	$EXTCMD{$name} = [$cb, $caller];	1317	$EXTCMD{$name} = $cb;
597	}	1318	}
		1319
		1320	sub register_exticmd {
		1321	my ($name, $cb) = @_;
		1322
		1323	$EXTICMD{$name} = $cb;
		1324	}
		1325
		1326	use File::Glob ();
598		1327
599	cf::player->attach (	1328	cf::player->attach (
600	on_command => sub {	1329	on_unknown_command => sub {
601	my ($pl, $name, $params) = @_;	1330	my ($pl, $name, $params) = @_;
602		1331
603	my $cb = $COMMAND{$name}	1332	my $cb = $COMMAND{$name}
604	or return;	1333	or return;
605		1334
…		…
610	cf::override;	1339	cf::override;
611	},	1340	},
612	on_extcmd => sub {	1341	on_extcmd => sub {
613	my ($pl, $buf) = @_;	1342	my ($pl, $buf) = @_;
614		1343
615	my $msg = eval { from_json $buf };	1344	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
616		1345
617	if (ref $msg) {	1346	if (ref $msg) {
		1347	my ($type, $reply, @payload) =
		1348	"ARRAY" eq ref $msg
		1349	? @$msg
		1350	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1351
		1352	my @reply;
		1353
618	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1354	if (my $cb = $EXTCMD{$type}) {
619	if (my %reply = $cb->[0]->($pl, $msg)) {	1355	@reply = $cb->($pl, @payload);
620	$pl->ext_reply ($msg->{msgid}, %reply);
621	}
622	}	1356	}
		1357
		1358	$pl->ext_reply ($reply, @reply)
		1359	if $reply;
		1360
623	} else {	1361	} else {
624	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1362	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
625	}	1363	}
626		1364
627	cf::override;	1365	cf::override;
628	},	1366	},
629	);	1367	);
630		1368
631	sub register {	1369	# "readahead" all extensions
632	my ($base, $pkg) = @_;
633
634	#TODO
635	}
636
637	sub load_extension {	1370	sub cache_extensions {
638	my ($path) = @_;	1371	my $grp = IO::AIO::aio_group;
639		1372
640	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1373	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
641	my $base = $1;	1374	for (grep /\.ext$/, @{$_[0]}) {
642	my $pkg = $1;	1375	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
643	$pkg =~ s/[^[:word:]]/_/g;
644	$pkg = "ext::$pkg";
645
646	warn "loading '$path' into '$pkg'\n";
647
648	open my $fh, "<:utf8", $path
649	or die "$path: $!";
650
651	my $source =
652	"package $pkg; use strict; use utf8;\n"
653	. "#line 1 \"$path\"\n{\n"
654	. (do { local $/; <$fh> })
655	. "\n};\n1";
656
657	eval $source
658	or die $@ ? "$path: $@\n"
659	: "extension disabled.\n";
660
661	push @exts, $pkg;
662	$ext_pkg{$base} = $pkg;
663
664	# no strict 'refs';
665	# @{"$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	# }
680
681	# remove commands
682	for my $name (keys %COMMAND) {
683	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
684
685	if (@cb) {
686	$COMMAND{$name} = \@cb;
687	} else {
688	delete $COMMAND{$name};
689	}	1376	}
690	}	1377	};
691		1378
692	# remove extcmds	1379	$grp
693	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
694	delete $EXTCMD{$name};
695	}
696
697	if (my $cb = $pkg->can ("unload")) {
698	eval {
699	$cb->($pkg);
700	1
701	} or warn "$pkg unloaded, but with errors: $@";
702	}
703
704	Symbol::delete_package $pkg;
705	}	1380	}
706		1381
707	sub load_extensions {	1382	sub load_extensions {
		1383	cf::sync_job {
		1384	my %todo;
		1385
708	for my $ext (<$LIBDIR/*.ext>) {	1386	for my $path (<$LIBDIR/*.ext>) {
709	next unless -r $ext;	1387	next unless -r $path;
710	eval {	1388
711	load_extension $ext;	1389	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1390	my $base = $1;
		1391	my $pkg = $1;
		1392	$pkg =~ s/[^[:word:]]/_/g;
		1393	$pkg = "ext::$pkg";
		1394
		1395	open my $fh, "<:utf8", $path
		1396	or die "$path: $!";
		1397
		1398	my $source = do { local $/; <$fh> };
		1399
		1400	my %ext = (
		1401	path => $path,
		1402	base => $base,
		1403	pkg => $pkg,
		1404	);
		1405
		1406	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1407	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1408
		1409	$ext{source} =
		1410	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1411	. "#line 1 \"$path\"\n{\n"
		1412	. $source
		1413	. "\n};\n1";
		1414
		1415	$todo{$base} = \%ext;
		1416	}
		1417
		1418	my $pass = 0;
		1419	my %done;
		1420	while (%todo) {
		1421	my $progress;
		1422
		1423	++$pass;
		1424
		1425	ext:
		1426	while (my ($k, $v) = each %todo) {
		1427	for (split /,\s*/, $v->{meta}{depends}) {
		1428	next ext
		1429	unless exists $done{$_};
		1430	}
		1431
		1432	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1433
		1434	my $active = eval $v->{source};
		1435
		1436	if (length $@) {
		1437	warn "$v->{path}: $@\n";
		1438
		1439	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1440	if exists $v->{meta}{mandatory};
		1441	} else {
		1442	$done{$k} = delete $todo{$k};
		1443	push @EXTS, $v->{pkg};
		1444	$progress = 1;
		1445
		1446	warn "$v->{base}: extension inactive.\n"
		1447	unless $active;
		1448	}
712	1	1449	}
713	} or warn "$ext not loaded: $@";	1450
		1451	unless ($progress) {
		1452	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1453
		1454	while (my ($k, $v) = each %todo) {
		1455	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1456	if exists $v->{meta}{mandatory};
		1457	}
		1458	}
		1459	}
714	}	1460	};
715	}	1461	}
716		1462
717	#############################################################################	1463	#############################################################################
718	# load/save/clean perl data associated with a map
719		1464
720	*cf::mapsupport::on_clean = sub {	1465	=back
		1466
		1467	=head2 CORE EXTENSIONS
		1468
		1469	Functions and methods that extend core deliantra objects.
		1470
		1471	=cut
		1472
		1473	package cf::player;
		1474
		1475	use Coro::AIO;
		1476
		1477	=head3 cf::player
		1478
		1479	=over 4
		1480
		1481	=item cf::player::num_playing
		1482
		1483	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1484
		1485	=cut
		1486
		1487	sub num_playing {
		1488	scalar grep
		1489	$_->ob->map
		1490	&& !$_->hidden
		1491	&& !$_->ob->flag (cf::FLAG_WIZ),
		1492	cf::player::list
		1493	}
		1494
		1495	=item cf::player::find $login
		1496
		1497	Returns the given player object, loading it if necessary (might block).
		1498
		1499	=cut
		1500
		1501	sub playerdir($) {
		1502	"$PLAYERDIR/"
		1503	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1504	}
		1505
		1506	sub path($) {
		1507	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1508
		1509	(playerdir $login) . "/playerdata"
		1510	}
		1511
		1512	sub find_active($) {
		1513	$cf::PLAYER{$_[0]}
		1514	and $cf::PLAYER{$_[0]}->active
		1515	and $cf::PLAYER{$_[0]}
		1516	}
		1517
		1518	sub exists($) {
721	my ($map) = @_;	1519	my ($login) = @_;
722		1520
723	my $path = $map->tmpname;	1521	$cf::PLAYER{$login}
724	defined $path or return;	1522	or !aio_stat path $login
725
726	unlink "$path.pst";
727	};
728
729	cf::map->attach (prio => -10000, package => cf::mapsupport::);
730
731	#############################################################################
732	# load/save perl data associated with player->ob objects
733
734	sub all_objects(@) {
735	@_, map all_objects ($_->inv), @_
736	}	1523	}
737		1524
738	# TODO: compatibility cruft, remove when no longer needed	1525	sub find($) {
		1526	return $cf::PLAYER{$_[0]} || do {
		1527	my $login = $_[0];
		1528
		1529	my $guard = cf::lock_acquire "user_find:$login";
		1530
		1531	$cf::PLAYER{$_[0]} || do {
		1532	# rename old playerfiles to new ones
		1533	#TODO: remove when no longer required
		1534	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1535	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1536	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1537	aio_unlink +(playerdir $login) . "/$login.pl";
		1538
		1539	my $f = new_from_file cf::object::thawer path $login
		1540	or return;
		1541
		1542	my $pl = cf::player::load_pl $f
		1543	or return;
		1544
		1545	local $cf::PLAYER_LOADING{$login} = $pl;
		1546	$f->resolve_delayed_derefs;
		1547	$cf::PLAYER{$login} = $pl
		1548	}
		1549	}
		1550	}
		1551
739	cf::player->attach (	1552	cf::player->attach (
740	on_load => sub {	1553	on_load => sub {
741	my ($pl, $path) = @_;	1554	my ($pl, $path) = @_;
742		1555
743	for my $o (all_objects $pl->ob) {	1556	# restore slots saved in save, below
744	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1557	my $slots = delete $pl->{_slots};
745	$o->set_ob_key_value ("_perl_data");
746		1558
747	%$o = %{ Storable::thaw pack "H*", $value };	1559	$pl->ob->current_weapon ($slots->[0]);
748	}	1560	$pl->combat_ob ($slots->[1]);
749	}	1561	$pl->ranged_ob ($slots->[2]);
750	},	1562	},
751	);	1563	);
752		1564
753	#############################################################################	1565	sub save($) {
		1566	my ($pl) = @_;
754		1567
755	=head2 CORE EXTENSIONS	1568	return if $pl->{deny_save};
756		1569
757	Functions and methods that extend core crossfire objects.	1570	my $path = path $pl;
		1571	my $guard = cf::lock_acquire "user_save:$path";
758		1572
759	=head3 cf::player	1573	return if $pl->{deny_save};
		1574
		1575	aio_mkdir playerdir $pl, 0770;
		1576	$pl->{last_save} = $cf::RUNTIME;
		1577
		1578	cf::get_slot 0.01;
		1579
		1580	# save slots, to be restored later
		1581	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1582
		1583	$pl->save_pl ($path);
		1584	cf::cede_to_tick;
		1585	}
		1586
		1587	sub new($) {
		1588	my ($login) = @_;
		1589
		1590	my $self = create;
		1591
		1592	$self->ob->name ($login);
		1593	$self->{deny_save} = 1;
		1594
		1595	$cf::PLAYER{$login} = $self;
		1596
		1597	$self
		1598	}
		1599
		1600	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1601
		1602	=cut
		1603
		1604	sub send_msg {
		1605	my $ns = shift->ns
		1606	or return;
		1607	$ns->send_msg (@_);
		1608	}
		1609
		1610	=item $pl->quit_character
		1611
		1612	Nukes the player without looking back. If logged in, the connection will
		1613	be destroyed. May block for a long time.
		1614
		1615	=cut
		1616
		1617	sub quit_character {
		1618	my ($pl) = @_;
		1619
		1620	my $name = $pl->ob->name;
		1621
		1622	$pl->{deny_save} = 1;
		1623	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1624
		1625	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1626	$pl->deactivate;
		1627	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1628	$pl->ob->check_score;
		1629	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1630	$pl->ns->destroy if $pl->ns;
		1631
		1632	my $path = playerdir $pl;
		1633	my $temp = "$path~$cf::RUNTIME~deleting~";
		1634	aio_rename $path, $temp;
		1635	delete $cf::PLAYER{$pl->ob->name};
		1636	$pl->destroy;
		1637
		1638	my $prefix = qr<^~\Q$name\E/>;
		1639
		1640	# nuke player maps
		1641	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1642
		1643	IO::AIO::aio_rmtree $temp;
		1644	}
		1645
		1646	=item $pl->kick
		1647
		1648	Kicks a player out of the game. This destroys the connection.
		1649
		1650	=cut
		1651
		1652	sub kick {
		1653	my ($pl, $kicker) = @_;
		1654
		1655	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1656	$pl->killer ("kicked");
		1657	$pl->ns->destroy;
		1658	}
		1659
		1660	=item cf::player::list_logins
		1661
		1662	Returns am arrayref of all valid playernames in the system, can take a
		1663	while and may block, so not sync_job-capable, ever.
		1664
		1665	=cut
		1666
		1667	sub list_logins {
		1668	my $dirs = aio_readdir $PLAYERDIR
		1669	or return [];
		1670
		1671	my @logins;
		1672
		1673	for my $login (@$dirs) {
		1674	my $path = path $login;
		1675
		1676	# a .pst is a dead give-away for a valid player
		1677	# if no pst file found, open and chekc for blocked users
		1678	if (aio_stat "$path.pst") {
		1679	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1680	aio_read $fh, 0, 512, my $buf, 0 or next;
		1681	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1682	}
		1683
		1684	utf8::decode $login;
		1685	push @logins, $login;
		1686	}
		1687
		1688	\@logins
		1689	}
		1690
		1691	=item $player->maps
		1692
		1693	Returns an arrayref of map paths that are private for this
		1694	player. May block.
		1695
		1696	=cut
		1697
		1698	sub maps($) {
		1699	my ($pl) = @_;
		1700
		1701	$pl = ref $pl ? $pl->ob->name : $pl;
		1702
		1703	my $files = aio_readdir playerdir $pl
		1704	or return;
		1705
		1706	my @paths;
		1707
		1708	for (@$files) {
		1709	utf8::decode $_;
		1710	next if /\.(?:pl|pst)$/;
		1711	next unless /^$PATH_SEP/o;
		1712
		1713	push @paths, cf::map::normalise "~$pl/$_";
		1714	}
		1715
		1716	\@paths
		1717	}
		1718
		1719	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1720
		1721	Expand deliantra pod fragments into protocol xml.
		1722
		1723	=item $player->ext_reply ($msgid, @msg)
		1724
		1725	Sends an ext reply to the player.
		1726
		1727	=cut
		1728
		1729	sub ext_reply($$@) {
		1730	my ($self, $id, @msg) = @_;
		1731
		1732	$self->ns->ext_reply ($id, @msg)
		1733	}
		1734
		1735	=item $player->ext_msg ($type, @msg)
		1736
		1737	Sends an ext event to the client.
		1738
		1739	=cut
		1740
		1741	sub ext_msg($$@) {
		1742	my ($self, $type, @msg) = @_;
		1743
		1744	$self->ns->ext_msg ($type, @msg);
		1745	}
		1746
		1747	=head3 cf::region
760		1748
761	=over 4	1749	=over 4
762		1750
763	=item cf::player::exists $login
764
765	Returns true when the given account exists.
766
767	=cut	1751	=cut
768		1752
769	sub cf::player::exists($) {	1753	package cf::region;
770	cf::player::find $_[0]
771	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
772	}
773		1754
774	=item $player->ext_reply ($msgid, $msgtype, %msg)	1755	=item cf::region::find_by_path $path
775		1756
776	Sends an ext reply to the player.	1757	Tries to decuce the likely region for a map knowing only its path.
777		1758
778	=cut	1759	=cut
779		1760
780	sub cf::player::ext_reply($$$%) {	1761	sub find_by_path($) {
		1762	my ($path) = @_;
		1763
		1764	my ($match, $specificity);
		1765
		1766	for my $region (list) {
		1767	if ($region->{match} && $path =~ $region->{match}) {
		1768	($match, $specificity) = ($region, $region->specificity)
		1769	if $region->specificity > $specificity;
		1770	}
		1771	}
		1772
		1773	$match
		1774	}
		1775
		1776	=back
		1777
		1778	=head3 cf::map
		1779
		1780	=over 4
		1781
		1782	=cut
		1783
		1784	package cf::map;
		1785
		1786	use Fcntl;
		1787	use Coro::AIO;
		1788
		1789	use overload
		1790	'""' => \&as_string,
		1791	fallback => 1;
		1792
		1793	our $MAX_RESET = 3600;
		1794	our $DEFAULT_RESET = 3000;
		1795
		1796	sub generate_random_map {
		1797	my ($self, $rmp) = @_;
		1798
		1799	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1800
		1801	# mit "rum" bekleckern, nicht
		1802	$self->_create_random_map (
		1803	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1804	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
		1805	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1806	$rmp->{exit_on_final_map},
		1807	$rmp->{xsize}, $rmp->{ysize},
		1808	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1809	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1810	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1811	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1812	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1813	(cf::region::find $rmp->{region}), $rmp->{custom}
		1814	)
		1815	}
		1816
		1817	=item cf::map->register ($regex, $prio)
		1818
		1819	Register a handler for the map path matching the given regex at the
		1820	givne priority (higher is better, built-in handlers have priority 0, the
		1821	default).
		1822
		1823	=cut
		1824
		1825	sub register {
		1826	my (undef, $regex, $prio) = @_;
		1827	my $pkg = caller;
		1828
		1829	no strict;
		1830	push @{"$pkg\::ISA"}, __PACKAGE__;
		1831
		1832	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1833	}
		1834
		1835	# also paths starting with '/'
		1836	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1837
		1838	sub thawer_merge {
781	my ($self, $id, %msg) = @_;	1839	my ($self, $merge) = @_;
782		1840
783	$msg{msgid} = $id;	1841	# we have to keep some variables in memory intact
		1842	local $self->{path};
		1843	local $self->{load_path};
784		1844
785	$self->send ("ext " . to_json \%msg);	1845	$self->SUPER::thawer_merge ($merge);
786	}	1846	}
		1847
		1848	sub normalise {
		1849	my ($path, $base) = @_;
		1850
		1851	$path = "$path"; # make sure its a string
		1852
		1853	$path =~ s/\.map$//;
		1854
		1855	# map plan:
		1856	#
		1857	# /! non-realised random map exit (special hack!)
		1858	# {... are special paths that are not being touched
		1859	# ?xxx/... are special absolute paths
		1860	# ?random/... random maps
		1861	# /... normal maps
		1862	# ~user/... per-player map of a specific user
		1863
		1864	$path =~ s/$PATH_SEP/\//go;
		1865
		1866	# treat it as relative path if it starts with
		1867	# something that looks reasonable
		1868	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1869	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1870
		1871	$base =~ s{[^/]+/?$}{};
		1872	$path = "$base/$path";
		1873	}
		1874
		1875	for ($path) {
		1876	redo if s{//}{/};
		1877	redo if s{/\.?/}{/};
		1878	redo if s{/[^/]+/\.\./}{/};
		1879	}
		1880
		1881	$path
		1882	}
		1883
		1884	sub new_from_path {
		1885	my (undef, $path, $base) = @_;
		1886
		1887	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1888
		1889	$path = normalise $path, $base;
		1890
		1891	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1892	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1893	my $self = bless cf::map::new, $pkg;
		1894	$self->{path} = $path; $self->path ($path);
		1895	$self->init; # pass $1 etc.
		1896	return $self;
		1897	}
		1898	}
		1899
		1900	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1901	()
		1902	}
		1903
		1904	sub init {
		1905	my ($self) = @_;
		1906
		1907	$self
		1908	}
		1909
		1910	sub as_string {
		1911	my ($self) = @_;
		1912
		1913	"$self->{path}"
		1914	}
		1915
		1916	# the displayed name, this is a one way mapping
		1917	sub visible_name {
		1918	&as_string
		1919	}
		1920
		1921	# the original (read-only) location
		1922	sub load_path {
		1923	my ($self) = @_;
		1924
		1925	"$MAPDIR/$self->{path}.map"
		1926	}
		1927
		1928	# the temporary/swap location
		1929	sub save_path {
		1930	my ($self) = @_;
		1931
		1932	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1933	"$TMPDIR/$path.map"
		1934	}
		1935
		1936	# the unique path, undef == no special unique path
		1937	sub uniq_path {
		1938	my ($self) = @_;
		1939
		1940	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1941	"$UNIQUEDIR/$path"
		1942	}
		1943
		1944	sub decay_objects {
		1945	my ($self) = @_;
		1946
		1947	return if $self->{deny_reset};
		1948
		1949	$self->do_decay_objects;
		1950	}
		1951
		1952	sub unlink_save {
		1953	my ($self) = @_;
		1954
		1955	utf8::encode (my $save = $self->save_path);
		1956	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1957	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1958	}
		1959
		1960	sub load_header_from($) {
		1961	my ($self, $path) = @_;
		1962
		1963	utf8::encode $path;
		1964	my $f = new_from_file cf::object::thawer $path
		1965	or return;
		1966
		1967	$self->_load_header ($f)
		1968	or return;
		1969
		1970	local $MAP_LOADING{$self->{path}} = $self;
		1971	$f->resolve_delayed_derefs;
		1972
		1973	$self->{load_path} = $path;
		1974
		1975	1
		1976	}
		1977
		1978	sub load_header_orig {
		1979	my ($self) = @_;
		1980
		1981	$self->load_header_from ($self->load_path)
		1982	}
		1983
		1984	sub load_header_temp {
		1985	my ($self) = @_;
		1986
		1987	$self->load_header_from ($self->save_path)
		1988	}
		1989
		1990	sub prepare_temp {
		1991	my ($self) = @_;
		1992
		1993	$self->last_access ((delete $self->{last_access})
		1994	|| $cf::RUNTIME); #d#
		1995	# safety
		1996	$self->{instantiate_time} = $cf::RUNTIME
		1997	if $self->{instantiate_time} > $cf::RUNTIME;
		1998	}
		1999
		2000	sub prepare_orig {
		2001	my ($self) = @_;
		2002
		2003	$self->{load_original} = 1;
		2004	$self->{instantiate_time} = $cf::RUNTIME;
		2005	$self->last_access ($cf::RUNTIME);
		2006	$self->instantiate;
		2007	}
		2008
		2009	sub load_header {
		2010	my ($self) = @_;
		2011
		2012	if ($self->load_header_temp) {
		2013	$self->prepare_temp;
		2014	} else {
		2015	$self->load_header_orig
		2016	or return;
		2017	$self->prepare_orig;
		2018	}
		2019
		2020	$self->{deny_reset} = 1
		2021	if $self->no_reset;
		2022
		2023	$self->default_region (cf::region::find_by_path $self->{path})
		2024	unless $self->default_region;
		2025
		2026	1
		2027	}
		2028
		2029	sub find;
		2030	sub find {
		2031	my ($path, $origin) = @_;
		2032
		2033	$path = normalise $path, $origin && $origin->path;
		2034
		2035	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2036	my $guard2 = cf::lock_acquire "map_find:$path";
		2037
		2038	$cf::MAP{$path} || do {
		2039	my $map = new_from_path cf::map $path
		2040	or return;
		2041
		2042	$map->{last_save} = $cf::RUNTIME;
		2043
		2044	$map->load_header
		2045	or return;
		2046
		2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2048	# doing this can freeze the server in a sync job, obviously
		2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard2;
		2051	undef $guard1;
		2052	$map->reset;
		2053	return find $path;
		2054	}
		2055
		2056	$cf::MAP{$path} = $map
		2057	}
		2058	}
		2059
		2060	sub pre_load { }
		2061	#sub post_load { } # XS
		2062
		2063	sub load {
		2064	my ($self) = @_;
		2065
		2066	local $self->{deny_reset} = 1; # loading can take a long time
		2067
		2068	my $path = $self->{path};
		2069
		2070	{
		2071	my $guard = cf::lock_acquire "map_data:$path";
		2072
		2073	return unless $self->valid;
		2074	return unless $self->in_memory == cf::MAP_SWAPPED;
		2075
		2076	$self->in_memory (cf::MAP_LOADING);
		2077
		2078	$self->alloc;
		2079
		2080	$self->pre_load;
		2081	cf::cede_to_tick;
		2082
		2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
		2085	$self->_load_objects ($f)
		2086	or return;
		2087
		2088	$self->post_load_original
		2089	if delete $self->{load_original};
		2090
		2091	if (my $uniq = $self->uniq_path) {
		2092	utf8::encode $uniq;
		2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
		2095	$self->clear_unique_items;
		2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
		2099	}
		2100	}
		2101
		2102	$f->resolve_delayed_derefs;
		2103
		2104	cf::cede_to_tick;
		2105	# now do the right thing for maps
		2106	$self->link_multipart_objects;
		2107	$self->difficulty ($self->estimate_difficulty)
		2108	unless $self->difficulty;
		2109	cf::cede_to_tick;
		2110
		2111	unless ($self->{deny_activate}) {
		2112	$self->decay_objects;
		2113	$self->fix_auto_apply;
		2114	$self->update_buttons;
		2115	cf::cede_to_tick;
		2116	$self->activate;
		2117	}
		2118
		2119	$self->{last_save} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
		2121
		2122	$self->in_memory (cf::MAP_ACTIVE);
		2123	}
		2124
		2125	$self->post_load;
		2126	}
		2127
		2128	# customize the map for a given player, i.e.
		2129	# return the _real_ map. used by e.g. per-player
		2130	# maps to change the path to ~playername/mappath
		2131	sub customise_for {
		2132	my ($self, $ob) = @_;
		2133
		2134	return find "~" . $ob->name . "/" . $self->{path}
		2135	if $self->per_player;
		2136
		2137	# return find "?party/" . $ob->name . "/" . $self->{path}
		2138	# if $self->per_party;
		2139
		2140	$self
		2141	}
		2142
		2143	# find and load all maps in the 3x3 area around a map
		2144	sub load_neighbours {
		2145	my ($map) = @_;
		2146
		2147	my @neigh; # diagonal neighbours
		2148
		2149	for (0 .. 3) {
		2150	my $neigh = $map->tile_path ($_)
		2151	or next;
		2152	$neigh = find $neigh, $map
		2153	or next;
		2154	$neigh->load;
		2155
		2156	push @neigh,
		2157	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2158	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2159	}
		2160
		2161	for (grep defined $_->[0], @neigh) {
		2162	my ($path, $origin) = @$_;
		2163	my $neigh = find $path, $origin
		2164	or next;
		2165	$neigh->load;
		2166	}
		2167	}
		2168
		2169	sub find_sync {
		2170	my ($path, $origin) = @_;
		2171
		2172	cf::sync_job { find $path, $origin }
		2173	}
		2174
		2175	sub do_load_sync {
		2176	my ($map) = @_;
		2177
		2178	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2179	if $Coro::current == $Coro::main;
		2180
		2181	cf::sync_job { $map->load };
		2182	}
		2183
		2184	our %MAP_PREFETCH;
		2185	our $MAP_PREFETCHER = undef;
		2186
		2187	sub find_async {
		2188	my ($path, $origin, $load) = @_;
		2189
		2190	$path = normalise $path, $origin && $origin->{path};
		2191
		2192	if (my $map = $cf::MAP{$path}) {
		2193	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2194	}
		2195
		2196	$MAP_PREFETCH{$path} |= $load;
		2197
		2198	$MAP_PREFETCHER ||= cf::async {
		2199	$Coro::current->{desc} = "map prefetcher";
		2200
		2201	while (%MAP_PREFETCH) {
		2202	while (my ($k, $v) = each %MAP_PREFETCH) {
		2203	if (my $map = find $k) {
		2204	$map->load if $v;
		2205	}
		2206
		2207	delete $MAP_PREFETCH{$k};
		2208	}
		2209	}
		2210	undef $MAP_PREFETCHER;
		2211	};
		2212	$MAP_PREFETCHER->prio (6);
		2213
		2214	()
		2215	}
		2216
		2217	# common code, used by both ->save and ->swapout
		2218	sub _save {
		2219	my ($self) = @_;
		2220
		2221	$self->{last_save} = $cf::RUNTIME;
		2222
		2223	return unless $self->dirty;
		2224
		2225	my $save = $self->save_path; utf8::encode $save;
		2226	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2227
		2228	$self->{load_path} = $save;
		2229
		2230	return if $self->{deny_save};
		2231
		2232	local $self->{last_access} = $self->last_access;#d#
		2233
		2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
		2236	$_->contr->save for $self->players;
		2237	};
		2238
		2239	cf::get_slot 0.02;
		2240
		2241	if ($uniq) {
		2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2244	} else {
		2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2246	}
		2247	}
		2248
		2249	sub save {
		2250	my ($self) = @_;
		2251
		2252	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2253
		2254	$self->_save;
		2255	}
		2256
		2257	sub swap_out {
		2258	my ($self) = @_;
		2259
		2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2261
		2262	return if $self->in_memory != cf::MAP_ACTIVE;
		2263	return if $self->{deny_save};
		2264	return if $self->players;
		2265
		2266	# first deactivate the map and "unlink" it from the core
		2267	$self->deactivate;
		2268	$_->clear_links_to ($self) for values %cf::MAP;
		2269	$self->in_memory (cf::MAP_SWAPPED);
		2270
		2271	# then atomically save
		2272	$self->_save;
		2273
		2274	# then free the map
		2275	$self->clear;
		2276	}
		2277
		2278	sub reset_at {
		2279	my ($self) = @_;
		2280
		2281	# TODO: safety, remove and allow resettable per-player maps
		2282	return 1e99 if $self->{deny_reset};
		2283
		2284	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2285	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2286
		2287	$time + $to
		2288	}
		2289
		2290	sub should_reset {
		2291	my ($self) = @_;
		2292
		2293	$self->reset_at <= $cf::RUNTIME
		2294	}
		2295
		2296	sub reset {
		2297	my ($self) = @_;
		2298
		2299	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2300
		2301	return if $self->players;
		2302
		2303	warn "resetting map ", $self->path, "\n";
		2304
		2305	$self->in_memory (cf::MAP_SWAPPED);
		2306
		2307	# need to save uniques path
		2308	unless ($self->{deny_save}) {
		2309	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2310
		2311	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2312	if $uniq;
		2313	}
		2314
		2315	delete $cf::MAP{$self->path};
		2316
		2317	$self->deactivate;
		2318	$_->clear_links_to ($self) for values %cf::MAP;
		2319	$self->clear;
		2320
		2321	$self->unlink_save;
		2322	$self->destroy;
		2323	}
		2324
		2325	my $nuke_counter = "aaaa";
		2326
		2327	sub nuke {
		2328	my ($self) = @_;
		2329
		2330	{
		2331	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2332
		2333	delete $cf::MAP{$self->path};
		2334
		2335	$self->unlink_save;
		2336
		2337	bless $self, "cf::map";
		2338	delete $self->{deny_reset};
		2339	$self->{deny_save} = 1;
		2340	$self->reset_timeout (1);
		2341	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2342
		2343	$cf::MAP{$self->path} = $self;
		2344	}
		2345
		2346	$self->reset; # polite request, might not happen
		2347	}
		2348
		2349	=item $maps = cf::map::tmp_maps
		2350
		2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	maps. May block.
		2353
		2354	=cut
		2355
		2356	sub tmp_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise $_
		2362	: ()
		2363	} @{ aio_readdir $TMPDIR or [] }
		2364	]
		2365	}
		2366
		2367	=item $maps = cf::map::random_maps
		2368
		2369	Returns an arrayref with all map paths of currently instantiated and saved
		2370	random maps. May block.
		2371
		2372	=cut
		2373
		2374	sub random_maps() {
		2375	[
		2376	map {
		2377	utf8::decode $_;
		2378	/\.map$/
		2379	? normalise "?random/$_"
		2380	: ()
		2381	} @{ aio_readdir $RANDOMDIR or [] }
		2382	]
		2383	}
		2384
		2385	=item cf::map::unique_maps
		2386
		2387	Returns an arrayref of paths of all shared maps that have
		2388	instantiated unique items. May block.
		2389
		2390	=cut
		2391
		2392	sub unique_maps() {
		2393	[
		2394	map {
		2395	utf8::decode $_;
		2396	s/\.map$//; # TODO future compatibility hack
		2397	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2398	? ()
		2399	: normalise $_
		2400	} @{ aio_readdir $UNIQUEDIR or [] }
		2401	]
		2402	}
		2403
		2404	=item cf::map::static_maps
		2405
		2406	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2407	file in the shared directory excluding F</styles> and F</editor>). May
		2408	block.
		2409
		2410	=cut
		2411
		2412	sub static_maps() {
		2413	my @dirs = "";
		2414	my @maps;
		2415
		2416	while (@dirs) {
		2417	my $dir = shift @dirs;
		2418
		2419	next if $dir eq "/styles" || $dir eq "/editor";
		2420
		2421	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2422	or return;
		2423
		2424	for (@$files) {
		2425	s/\.map$// or next;
		2426	utf8::decode $_;
		2427	push @maps, "$dir/$_";
		2428	}
		2429
		2430	push @dirs, map "$dir/$_", @$dirs;
		2431	}
		2432
		2433	\@maps
		2434	}
		2435
		2436	=back
		2437
		2438	=head3 cf::object
		2439
		2440	=cut
		2441
		2442	package cf::object;
		2443
		2444	=over 4
		2445
		2446	=item $ob->inv_recursive
		2447
		2448	Returns the inventory of the object I<and> their inventories, recursively,
		2449	but I<not> the object itself.
		2450
		2451	=cut
		2452
		2453	sub inv_recursive_;
		2454	sub inv_recursive_ {
		2455	map { $_, inv_recursive_ $_->inv } @_
		2456	}
		2457
		2458	sub inv_recursive {
		2459	inv_recursive_ inv $_[0]
		2460	}
		2461
		2462	=item $ref = $ob->ref
		2463
		2464	Creates and returns a persistent reference to an object that can be stored as a string.
		2465
		2466	=item $ob = cf::object::deref ($refstring)
		2467
		2468	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2469	even if the object actually exists. May block.
		2470
		2471	=cut
		2472
		2473	sub deref {
		2474	my ($ref) = @_;
		2475
		2476	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2477	my ($uuid, $name) = ($1, $2);
		2478	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2479	or return;
		2480	$pl->ob->uuid eq $uuid
		2481	or return;
		2482
		2483	$pl->ob
		2484	} else {
		2485	warn "$ref: cannot resolve object reference\n";
		2486	undef
		2487	}
		2488	}
		2489
		2490	package cf;
787		2491
788	=back	2492	=back
789		2493
790	=head3 cf::object::player	2494	=head3 cf::object::player
791		2495
…		…
796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2500	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	2501	can be C<undef>. Does the right thing when the player is currently in a
798	dialogue with the given NPC character.	2502	dialogue with the given NPC character.
799		2503
800	=cut	2504	=cut
		2505
		2506	our $SAY_CHANNEL = {
		2507	id => "say",
		2508	title => "Map",
		2509	reply => "say ",
		2510	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2511	};
		2512
		2513	our $CHAT_CHANNEL = {
		2514	id => "chat",
		2515	title => "Chat",
		2516	reply => "chat ",
		2517	tooltip => "Player chat and shouts, global to the server.",
		2518	};
801		2519
802	# rough implementation of a future "reply" method that works	2520	# rough implementation of a future "reply" method that works
803	# with dialog boxes.	2521	# with dialog boxes.
804	#TODO: the first argument must go, split into a $npc->reply_to ( method	2522	#TODO: the first argument must go, split into a $npc->reply_to ( method
805	sub cf::object::player::reply($$$;$) {	2523	sub cf::object::player::reply($$$;$) {
…		…
807		2525
808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2526	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
809		2527
810	if ($self->{record_replies}) {	2528	if ($self->{record_replies}) {
811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2529	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2530
812	} else {	2531	} else {
		2532	my $pl = $self->contr;
		2533
		2534	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2535	my $dialog = $pl->{npc_dialog};
		2536	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2537
		2538	} else {
813	$msg = $npc->name . " says: $msg" if $npc;	2539	$msg = $npc->name . " says: $msg" if $npc;
814	$self->message ($msg, $flags);	2540	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2541	}
815	}	2542	}
		2543	}
		2544
		2545	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2546
		2547	=cut
		2548
		2549	sub cf::object::send_msg {
		2550	my $pl = shift->contr
		2551	or return;
		2552	$pl->send_msg (@_);
816	}	2553	}
817		2554
818	=item $player_object->may ("access")	2555	=item $player_object->may ("access")
819		2556
820	Returns wether the given player is authorized to access resource "access"	2557	Returns wether the given player is authorized to access resource "access"
…		…
829	(ref $cf::CFG{"may_$access"}	2566	(ref $cf::CFG{"may_$access"}
830	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2567	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
831	: $cf::CFG{"may_$access"})	2568	: $cf::CFG{"may_$access"})
832	}	2569	}
833		2570
		2571	=item $player_object->enter_link
		2572
		2573	Freezes the player and moves him/her to a special map (C<{link}>).
		2574
		2575	The player should be reasonably safe there for short amounts of time (e.g.
		2576	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2577	though, as the palyer cannot control the character while it is on the link
		2578	map.
		2579
		2580	Will never block.
		2581
		2582	=item $player_object->leave_link ($map, $x, $y)
		2583
		2584	Moves the player out of the special C<{link}> map onto the specified
		2585	map. If the map is not valid (or omitted), the player will be moved back
		2586	to the location he/she was before the call to C<enter_link>, or, if that
		2587	fails, to the emergency map position.
		2588
		2589	Might block.
		2590
		2591	=cut
		2592
		2593	sub link_map {
		2594	unless ($LINK_MAP) {
		2595	$LINK_MAP = cf::map::find "{link}"
		2596	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2597	$LINK_MAP->load;
		2598	}
		2599
		2600	$LINK_MAP
		2601	}
		2602
		2603	sub cf::object::player::enter_link {
		2604	my ($self) = @_;
		2605
		2606	$self->deactivate_recursive;
		2607
		2608	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2609
		2610	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2611	if $self->map && $self->map->{path} ne "{link}";
		2612
		2613	$self->enter_map ($LINK_MAP || link_map, 3, 3);
		2614	}
		2615
		2616	sub cf::object::player::leave_link {
		2617	my ($self, $map, $x, $y) = @_;
		2618
		2619	return unless $self->contr->active;
		2620
		2621	my $link_pos = delete $self->{_link_pos};
		2622
		2623	unless ($map) {
		2624	# restore original map position
		2625	($map, $x, $y) = @{ $link_pos || [] };
		2626	$map = cf::map::find $map;
		2627
		2628	unless ($map) {
		2629	($map, $x, $y) = @$EMERGENCY_POSITION;
		2630	$map = cf::map::find $map
		2631	or die "FATAL: cannot load emergency map\n";
		2632	}
		2633	}
		2634
		2635	($x, $y) = (-1, -1)
		2636	unless (defined $x) && (defined $y);
		2637
		2638	# use -1 or undef as default coordinates, not 0, 0
		2639	($x, $y) = ($map->enter_x, $map->enter_y)
		2640	if $x <= 0 && $y <= 0;
		2641
		2642	$map->load;
		2643	$map->load_neighbours;
		2644
		2645	return unless $self->contr->active;
		2646
		2647	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2648	$self->enter_map ($map, $x, $y);
		2649
		2650	# only activate afterwards, to support waiting in hooks
		2651	$self->activate_recursive;
		2652	}
		2653
		2654	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2655
		2656	Moves the player to the given map-path and coordinates by first freezing
		2657	her, loading and preparing them map, calling the provided $check callback
		2658	that has to return the map if sucecssful, and then unfreezes the player on
		2659	the new (success) or old (failed) map position. In either case, $done will
		2660	be called at the end of this process.
		2661
		2662	Note that $check will be called with a potentially non-loaded map, so if
		2663	it needs a loaded map it has to call C<< ->load >>.
		2664
		2665	=cut
		2666
		2667	our $GOTOGEN;
		2668
		2669	sub cf::object::player::goto {
		2670	my ($self, $path, $x, $y, $check, $done) = @_;
		2671
		2672	# do generation counting so two concurrent goto's will be executed in-order
		2673	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2674
		2675	$self->enter_link;
		2676
		2677	(async {
		2678	$Coro::current->{desc} = "player::goto $path $x $y";
		2679
		2680	# *tag paths override both path and x|y
		2681	if ($path =~ /^\*(.*)$/) {
		2682	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2683	my $ob = $obs[rand @obs];
		2684
		2685	# see if we actually can go there
		2686	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2687	$ob = $obs[rand @obs];
		2688	} else {
		2689	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2690	}
		2691	# else put us there anyways for now #d#
		2692
		2693	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2694	} else {
		2695	($path, $x, $y) = (undef, undef, undef);
		2696	}
		2697	}
		2698
		2699	my $map = eval {
		2700	my $map = defined $path ? cf::map::find $path : undef;
		2701
		2702	if ($map) {
		2703	$map = $map->customise_for ($self);
		2704	$map = $check->($map) if $check && $map;
		2705	} else {
		2706	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2707	}
		2708
		2709	$map
		2710	};
		2711
		2712	if ($@) {
		2713	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2714	LOG llevError | logBacktrace, Carp::longmess $@;
		2715	}
		2716
		2717	if ($gen == $self->{_goto_generation}) {
		2718	delete $self->{_goto_generation};
		2719	$self->leave_link ($map, $x, $y);
		2720	}
		2721
		2722	$done->() if $done;
		2723	})->prio (1);
		2724	}
		2725
		2726	=item $player_object->enter_exit ($exit_object)
		2727
		2728	=cut
		2729
		2730	sub parse_random_map_params {
		2731	my ($spec) = @_;
		2732
		2733	my $rmp = { # defaults
		2734	xsize => (cf::rndm 15, 40),
		2735	ysize => (cf::rndm 15, 40),
		2736	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2737	#layout => string,
		2738	};
		2739
		2740	for (split /\n/, $spec) {
		2741	my ($k, $v) = split /\s+/, $_, 2;
		2742
		2743	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2744	}
		2745
		2746	$rmp
		2747	}
		2748
		2749	sub prepare_random_map {
		2750	my ($exit) = @_;
		2751
		2752	# all this does is basically replace the /! path by
		2753	# a new random map path (?random/...) with a seed
		2754	# that depends on the exit object
		2755
		2756	my $rmp = parse_random_map_params $exit->msg;
		2757
		2758	if ($exit->map) {
		2759	$rmp->{region} = $exit->region->name;
		2760	$rmp->{origin_map} = $exit->map->path;
		2761	$rmp->{origin_x} = $exit->x;
		2762	$rmp->{origin_y} = $exit->y;
		2763
		2764	$exit->map->touch;
		2765	}
		2766
		2767	$rmp->{random_seed} ||= $exit->random_seed;
		2768
		2769	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2770	my $md5 = Digest::MD5::md5_hex $data;
		2771	my $meta = "$RANDOMDIR/$md5.meta";
		2772
		2773	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2774	aio_write $fh, 0, (length $data), $data, 0;
		2775	undef $fh;
		2776	aio_rename "$meta~", $meta;
		2777
		2778	my $slaying = "?random/$md5";
		2779
		2780	if ($exit->valid) {
		2781	$exit->slaying ("?random/$md5");
		2782	$exit->msg (undef);
		2783	}
		2784	}
		2785	}
		2786
		2787	sub cf::object::player::enter_exit {
		2788	my ($self, $exit) = @_;
		2789
		2790	return unless $self->type == cf::PLAYER;
		2791
		2792	$self->enter_link;
		2793
		2794	(async {
		2795	$Coro::current->{desc} = "enter_exit";
		2796
		2797	unless (eval {
		2798	$self->deactivate_recursive; # just to be sure
		2799
		2800	# random map handling
		2801	{
		2802	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2803
		2804	prepare_random_map $exit
		2805	if $exit->slaying eq "/!";
		2806	}
		2807
		2808	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2809	my $x = $exit->stats->hp;
		2810	my $y = $exit->stats->sp;
		2811
		2812	$self->goto ($map, $x, $y);
		2813
		2814	# if exit is damned, update players death & WoR home-position
		2815	$self->contr->savebed ($map, $x, $y)
		2816	if $exit->flag (cf::FLAG_DAMNED);
		2817
		2818	1
		2819	}) {
		2820	$self->message ("Something went wrong deep within the deliantra server. "
		2821	. "I'll try to bring you back to the map you were before. "
		2822	. "Please report this to the dungeon master!",
		2823	cf::NDI_UNIQUE | cf::NDI_RED);
		2824
		2825	warn "ERROR in enter_exit: $@";
		2826	$self->leave_link;
		2827	}
		2828	})->prio (1);
		2829	}
		2830
834	=head3 cf::client	2831	=head3 cf::client
835		2832
836	=over 4	2833	=over 4
837		2834
838	=item $client->send_drawinfo ($text, $flags)	2835	=item $client->send_drawinfo ($text, $flags)
…		…
844		2841
845	sub cf::client::send_drawinfo {	2842	sub cf::client::send_drawinfo {
846	my ($self, $text, $flags) = @_;	2843	my ($self, $text, $flags) = @_;
847		2844
848	utf8::encode $text;	2845	utf8::encode $text;
849	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2846	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
850	}	2847	}
851		2848
		2849	=item $client->send_big_packet ($pkt)
		2850
		2851	Like C<send_packet>, but tries to compress large packets, and fragments
		2852	them as required.
		2853
		2854	=cut
		2855
		2856	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2857
		2858	sub cf::client::send_big_packet {
		2859	my ($self, $pkt) = @_;
		2860
		2861	# try lzf for large packets
		2862	$pkt = "lzf " . Compress::LZF::compress $pkt
		2863	if 1024 <= length $pkt and $self->{can_lzf};
		2864
		2865	# split very large packets
		2866	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2867	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2868	$pkt = "frag";
		2869	}
		2870
		2871	$self->send_packet ($pkt);
		2872	}
		2873
		2874	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2875
		2876	Send a drawinfo or msg packet to the client, formatting the msg for the
		2877	client if neccessary. C<$type> should be a string identifying the type of
		2878	the message, with C<log> being the default. If C<$color> is negative, suppress
		2879	the message unless the client supports the msg packet.
		2880
		2881	=cut
		2882
		2883	# non-persistent channels (usually the info channel)
		2884	our %CHANNEL = (
		2885	"c/motd" => {
		2886	id => "infobox",
		2887	title => "MOTD",
		2888	reply => undef,
		2889	tooltip => "The message of the day",
		2890	},
		2891	"c/identify" => {
		2892	id => "infobox",
		2893	title => "Identify",
		2894	reply => undef,
		2895	tooltip => "Items recently identified",
		2896	},
		2897	"c/examine" => {
		2898	id => "infobox",
		2899	title => "Examine",
		2900	reply => undef,
		2901	tooltip => "Signs and other items you examined",
		2902	},
		2903	"c/shopinfo" => {
		2904	id => "infobox",
		2905	title => "Shop Info",
		2906	reply => undef,
		2907	tooltip => "What your bargaining skill tells you about the shop",
		2908	},
		2909	"c/book" => {
		2910	id => "infobox",
		2911	title => "Book",
		2912	reply => undef,
		2913	tooltip => "The contents of a note or book",
		2914	},
		2915	"c/lookat" => {
		2916	id => "infobox",
		2917	title => "Look",
		2918	reply => undef,
		2919	tooltip => "What you saw there",
		2920	},
		2921	"c/who" => {
		2922	id => "infobox",
		2923	title => "Players",
		2924	reply => undef,
		2925	tooltip => "Shows players who are currently online",
		2926	},
		2927	"c/body" => {
		2928	id => "infobox",
		2929	title => "Body Parts",
		2930	reply => undef,
		2931	tooltip => "Shows which body parts you posess and are available",
		2932	},
		2933	"c/statistics" => {
		2934	id => "infobox",
		2935	title => "Statistics",
		2936	reply => undef,
		2937	tooltip => "Shows your primary statistics",
		2938	},
		2939	"c/skills" => {
		2940	id => "infobox",
		2941	title => "Skills",
		2942	reply => undef,
		2943	tooltip => "Shows your experience per skill and item power",
		2944	},
		2945	"c/shopitems" => {
		2946	id => "infobox",
		2947	title => "Shop Items",
		2948	reply => undef,
		2949	tooltip => "Shows the items currently for sale in this shop",
		2950	},
		2951	"c/resistances" => {
		2952	id => "infobox",
		2953	title => "Resistances",
		2954	reply => undef,
		2955	tooltip => "Shows your resistances",
		2956	},
		2957	"c/pets" => {
		2958	id => "infobox",
		2959	title => "Pets",
		2960	reply => undef,
		2961	tooltip => "Shows information abotu your pets/a specific pet",
		2962	},
		2963	"c/perceiveself" => {
		2964	id => "infobox",
		2965	title => "Perceive Self",
		2966	reply => undef,
		2967	tooltip => "You gained detailed knowledge about yourself",
		2968	},
		2969	"c/uptime" => {
		2970	id => "infobox",
		2971	title => "Uptime",
		2972	reply => undef,
		2973	tooltip => "How long the server has been running since last restart",
		2974	},
		2975	"c/mapinfo" => {
		2976	id => "infobox",
		2977	title => "Map Info",
		2978	reply => undef,
		2979	tooltip => "Information related to the maps",
		2980	},
		2981	"c/party" => {
		2982	id => "party",
		2983	title => "Party",
		2984	reply => "gsay ",
		2985	tooltip => "Messages and chat related to your party",
		2986	},
		2987	"c/death" => {
		2988	id => "death",
		2989	title => "Death",
		2990	reply => undef,
		2991	tooltip => "Reason for and more info about your most recent death",
		2992	},
		2993	"c/say" => $SAY_CHANNEL,
		2994	"c/chat" => $CHAT_CHANNEL,
		2995	);
		2996
		2997	sub cf::client::send_msg {
		2998	my ($self, $channel, $msg, $color, @extra) = @_;
		2999
		3000	$msg = $self->pl->expand_cfpod ($msg)
		3001	unless $color & cf::NDI_VERBATIM;
		3002
		3003	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3004
		3005	# check predefined channels, for the benefit of C
		3006	if ($CHANNEL{$channel}) {
		3007	$channel = $CHANNEL{$channel};
		3008
		3009	$self->ext_msg (channel_info => $channel);
		3010	$channel = $channel->{id};
		3011
		3012	} elsif (ref $channel) {
		3013	# send meta info to client, if not yet sent
		3014	unless (exists $self->{channel}{$channel->{id}}) {
		3015	$self->{channel}{$channel->{id}} = $channel;
		3016	$self->ext_msg (channel_info => $channel);
		3017	}
		3018
		3019	$channel = $channel->{id};
		3020	}
		3021
		3022	return unless @extra || length $msg;
		3023
		3024	# default colour, mask it out
		3025	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3026	if $color & cf::NDI_DEF;
		3027
		3028	my $pkt = "msg "
		3029	. $self->{json_coder}->encode (
		3030	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3031	);
		3032
		3033	$self->send_big_packet ($pkt);
		3034	}
		3035
		3036	=item $client->ext_msg ($type, @msg)
		3037
		3038	Sends an ext event to the client.
		3039
		3040	=cut
		3041
		3042	sub cf::client::ext_msg($$@) {
		3043	my ($self, $type, @msg) = @_;
		3044
		3045	if ($self->extcmd == 2) {
		3046	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3047	} elsif ($self->extcmd == 1) { # TODO: remove
		3048	push @msg, msgtype => "event_$type";
		3049	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3050	}
		3051	}
		3052
		3053	=item $client->ext_reply ($msgid, @msg)
		3054
		3055	Sends an ext reply to the client.
		3056
		3057	=cut
		3058
		3059	sub cf::client::ext_reply($$@) {
		3060	my ($self, $id, @msg) = @_;
		3061
		3062	if ($self->extcmd == 2) {
		3063	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3064	} elsif ($self->extcmd == 1) {
		3065	#TODO: version 1, remove
		3066	unshift @msg, msgtype => "reply", msgid => $id;
		3067	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3068	}
		3069	}
852		3070
853	=item $success = $client->query ($flags, "text", \&cb)	3071	=item $success = $client->query ($flags, "text", \&cb)
854		3072
855	Queues a query to the client, calling the given callback with	3073	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>,	3074	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>.	3075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
858		3076
859	Queries can fail, so check the return code. Or don't, as queries will become	3077	Queries can fail, so check the return code. Or don't, as queries will
860	reliable at some point in the future.	3078	become reliable at some point in the future.
861		3079
862	=cut	3080	=cut
863		3081
864	sub cf::client::query {	3082	sub cf::client::query {
865	my ($self, $flags, $text, $cb) = @_;	3083	my ($self, $flags, $text, $cb) = @_;
…		…
873	utf8::encode $text;	3091	utf8::encode $text;
874	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
875		3093
876	$self->send_packet ($self->{query_queue}[0][0])	3094	$self->send_packet ($self->{query_queue}[0][0])
877	if @{ $self->{query_queue} } == 1;	3095	if @{ $self->{query_queue} } == 1;
		3096
		3097	1
878	}	3098	}
879		3099
880	cf::client->attach (	3100	cf::client->attach (
		3101	on_connect => sub {
		3102	my ($ns) = @_;
		3103
		3104	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3105	},
881	on_reply => sub {	3106	on_reply => sub {
882	my ($ns, $msg) = @_;	3107	my ($ns, $msg) = @_;
883		3108
884	# this weird shuffling is so that direct followup queries	3109	# this weird shuffling is so that direct followup queries
885	# get handled first	3110	# get handled first
886	my $queue = delete $ns->{query_queue};	3111	my $queue = delete $ns->{query_queue}
		3112	or return; # be conservative, not sure how that can happen, but we saw a crash here
887		3113
888	(shift @$queue)->[1]->($msg);	3114	(shift @$queue)->[1]->($msg);
		3115	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
889		3116
890	push @{ $ns->{query_queue} }, @$queue;	3117	push @{ $ns->{query_queue} }, @$queue;
891		3118
892	if (@{ $ns->{query_queue} } == @$queue) {	3119	if (@{ $ns->{query_queue} } == @$queue) {
893	if (@$queue) {	3120	if (@$queue) {
…		…
895	} else {	3122	} else {
896	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3123	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
897	}	3124	}
898	}	3125	}
899	},	3126	},
		3127	on_exticmd => sub {
		3128	my ($ns, $buf) = @_;
		3129
		3130	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3131
		3132	if (ref $msg) {
		3133	my ($type, $reply, @payload) =
		3134	"ARRAY" eq ref $msg
		3135	? @$msg
		3136	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3137
		3138	my @reply;
		3139
		3140	if (my $cb = $EXTICMD{$type}) {
		3141	@reply = $cb->($ns, @payload);
		3142	}
		3143
		3144	$ns->ext_reply ($reply, @reply)
		3145	if $reply;
		3146
		3147	} else {
		3148	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3149	}
		3150
		3151	cf::override;
		3152	},
900	);	3153	);
901		3154
902	=item $client->coro (\&cb)	3155	=item $client->async (\&cb)
903		3156
904	Create a new coroutine, running the specified callback. The coroutine will	3157	Create a new coroutine, running the specified callback. The coroutine will
905	be automatically cancelled when the client gets destroyed (e.g. on logout,	3158	be automatically cancelled when the client gets destroyed (e.g. on logout,
906	or loss of connection).	3159	or loss of connection).
907		3160
908	=cut	3161	=cut
909		3162
910	sub cf::client::coro {	3163	sub cf::client::async {
911	my ($self, $cb) = @_;	3164	my ($self, $cb) = @_;
912		3165
913	my $coro; $coro = async {	3166	my $coro = &Coro::async ($cb);
914	eval {	3167
915	$cb->();	3168	$coro->on_destroy (sub {
916	};
917	warn $@ if $@;
918	delete $self->{_coro}{$coro+0};	3169	delete $self->{_coro}{$coro+0};
919	};	3170	});
920		3171
921	$self->{_coro}{$coro+0} = $coro;	3172	$self->{_coro}{$coro+0} = $coro;
		3173
		3174	$coro
922	}	3175	}
923		3176
924	cf::client->attach (	3177	cf::client->attach (
925	on_destroy => sub {	3178	on_client_destroy => sub {
926	my ($ns) = @_;	3179	my ($ns) = @_;
927		3180
928	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3181	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
929	},	3182	},
930	);	3183	);
…		…
945	our $safe = new Safe "safe";	3198	our $safe = new Safe "safe";
946	our $safe_hole = new Safe::Hole;	3199	our $safe_hole = new Safe::Hole;
947		3200
948	$SIG{FPE} = 'IGNORE';	3201	$SIG{FPE} = 'IGNORE';
949		3202
950	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3203	$safe->permit_only (Opcode::opset qw(
		3204	:base_core :base_mem :base_orig :base_math :base_loop
		3205	grepstart grepwhile mapstart mapwhile
		3206	sort time
		3207	));
951		3208
952	# here we export the classes and methods available to script code	3209	# here we export the classes and methods available to script code
953		3210
954	=pod	3211	=pod
955		3212
956	The following fucntions and emthods are available within a safe environment:	3213	The following functions and methods are available within a safe environment:
957		3214
958	cf::object contr pay_amount pay_player map	3215	cf::object
		3216	contr pay_amount pay_player map x y force_find force_add destroy
		3217	insert remove name archname title slaying race decrease split
		3218	value
		3219
959	cf::object::player player	3220	cf::object::player
960	cf::player peaceful	3221	player
961	cf::map trigger	3222
		3223	cf::player
		3224	peaceful
		3225
		3226	cf::map
		3227	trigger
962		3228
963	=cut	3229	=cut
964		3230
965	for (	3231	for (
966	["cf::object" => qw(contr pay_amount pay_player map)],	3232	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3233	insert remove inv nrof name archname title slaying race
		3234	decrease split destroy change_exp value msg lore send_msg)],
967	["cf::object::player" => qw(player)],	3235	["cf::object::player" => qw(player)],
968	["cf::player" => qw(peaceful)],	3236	["cf::player" => qw(peaceful send_msg)],
969	["cf::map" => qw(trigger)],	3237	["cf::map" => qw(trigger)],
970	) {	3238	) {
971	no strict 'refs';	3239	no strict 'refs';
972	my ($pkg, @funs) = @$_;	3240	my ($pkg, @funs) = @$_;
973	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3241	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
991		3259
992	my $qcode = $code;	3260	my $qcode = $code;
993	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3261	$qcode =~ s/"/‟/g; # not allowed in #line filenames
994	$qcode =~ s/\n/\\n/g;	3262	$qcode =~ s/\n/\\n/g;
995		3263
		3264	%vars = (_dummy => 0) unless %vars;
		3265
		3266	my @res;
996	local $_;	3267	local $_;
997	local @safe::cf::_safe_eval_args = values %vars;
998		3268
999	my $eval =	3269	my $eval =
1000	"do {\n"	3270	"do {\n"
1001	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3271	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1002	. "#line 0 \"{$qcode}\"\n"	3272	. "#line 0 \"{$qcode}\"\n"
1003	. $code	3273	. $code
1004	. "\n}"	3274	. "\n}"
1005	;	3275	;
1006		3276
		3277	if ($CFG{safe_eval}) {
1007	sub_generation_inc;	3278	sub_generation_inc;
		3279	local @safe::cf::_safe_eval_args = values %vars;
1008	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3280	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1009	sub_generation_inc;	3281	sub_generation_inc;
		3282	} else {
		3283	local @cf::_safe_eval_args = values %vars;
		3284	@res = wantarray ? eval eval : scalar eval $eval;
		3285	}
1010		3286
1011	if ($@) {	3287	if ($@) {
1012	warn "$@";	3288	warn "$@";
1013	warn "while executing safe code '$code'\n";	3289	warn "while executing safe code '$code'\n";
1014	warn "with arguments " . (join " ", %vars) . "\n";	3290	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1033	=cut	3309	=cut
1034		3310
1035	sub register_script_function {	3311	sub register_script_function {
1036	my ($fun, $cb) = @_;	3312	my ($fun, $cb) = @_;
1037		3313
1038	no strict 'refs';	3314	$fun = "safe::$fun" if $CFG{safe_eval};
1039	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3315	*$fun = $safe_hole->wrap ($cb);
1040	}	3316	}
1041		3317
1042	=back	3318	=back
1043		3319
1044	=cut	3320	=cut
1045		3321
1046	#############################################################################	3322	#############################################################################
		3323	# the server's init and main functions
1047		3324
1048	=head2 EXTENSION DATABASE SUPPORT	3325	sub load_facedata($) {
		3326	my ($path) = @_;
1049		3327
1050	Crossfire maintains a very simple database for extension use. It can	3328	# HACK to clear player env face cache, we need some signal framework
1051	currently store anything that can be serialised using Storable, which	3329	# for this (global event?)
1052	excludes objects.	3330	%ext::player_env::MUSIC_FACE_CACHE = ();
1053		3331
1054	The parameter C<$family> should best start with the name of the extension	3332	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1055	using it, it should be unique.
1056		3333
1057	=over 4	3334	warn "loading facedata from $path\n";
1058		3335
1059	=item $hashref = cf::db_get $family	3336	my $facedata;
		3337	0 < aio_load $path, $facedata
		3338	or die "$path: $!";
1060		3339
1061	Return a hashref for use by the extension C<$family>, which can be	3340	$facedata = Coro::Storable::thaw $facedata;
1062	modified. After modifications, you have to call C<cf::db_dirty> or
1063	C<cf::db_sync>.
1064		3341
1065	=item $value = cf::db_get $family => $key	3342	$facedata->{version} == 2
		3343	or cf::cleanup "$path: version mismatch, cannot proceed.";
1066		3344
1067	Returns a single value from the database	3345	# patch in the exptable
		3346	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3347	$facedata->{resource}{"res/exp_table"} = {
		3348	type => FT_RSRC,
		3349	data => $exp_table,
		3350	hash => (Digest::MD5::md5 $exp_table),
		3351	};
		3352	cf::cede_to_tick;
1068		3353
1069	=item cf::db_put $family => $hashref	3354	{
		3355	my $faces = $facedata->{faceinfo};
1070		3356
1071	Stores the given family hashref into the database. Updates are delayed, if	3357	while (my ($face, $info) = each %$faces) {
1072	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3358	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1073		3359
1074	=item cf::db_put $family => $key => $value	3360	cf::face::set_visibility $idx, $info->{visibility};
		3361	cf::face::set_magicmap $idx, $info->{magicmap};
		3362	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3363	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1075		3364
1076	Stores the given C<$value> in the family hash. Updates are delayed, if you	3365	cf::cede_to_tick;
1077	want the data to be synced to disk immediately, use C<cf::db_sync>.	3366	}
1078		3367
1079	=item cf::db_dirty	3368	while (my ($face, $info) = each %$faces) {
		3369	next unless $info->{smooth};
1080		3370
1081	Marks the database as dirty, to be updated at a later time.	3371	my $idx = cf::face::find $face
		3372	or next;
1082		3373
1083	=item cf::db_sync	3374	if (my $smooth = cf::face::find $info->{smooth}) {
		3375	cf::face::set_smooth $idx, $smooth;
		3376	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3377	} else {
		3378	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3379	}
1084		3380
1085	Immediately write the database to disk I<if it is dirty>.	3381	cf::cede_to_tick;
		3382	}
		3383	}
1086		3384
1087	=cut	3385	{
		3386	my $anims = $facedata->{animinfo};
1088		3387
1089	our $DB;	3388	while (my ($anim, $info) = each %$anims) {
		3389	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3390	cf::cede_to_tick;
		3391	}
		3392
		3393	cf::anim::invalidate_all; # d'oh
		3394	}
		3395
		3396	{
		3397	my $res = $facedata->{resource};
		3398
		3399	while (my ($name, $info) = each %$res) {
		3400	if (defined $info->{type}) {
		3401	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3402
		3403	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3404	cf::face::set_type $idx, $info->{type};
		3405	} else {
		3406	$RESOURCE{$name} = $info;
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3414
		3415	1
		3416	}
		3417
		3418	cf::global->attach (on_resource_update => sub {
		3419	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3420	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3421
		3422	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3423	my $sound = $soundconf->{compat}[$_]
		3424	or next;
		3425
		3426	my $face = cf::face::find "sound/$sound->[1]";
		3427	cf::sound::set $sound->[0] => $face;
		3428	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3429	}
		3430
		3431	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3432	my $face = cf::face::find "sound/$v";
		3433	cf::sound::set $k => $face;
		3434	}
		3435	}
		3436	});
		3437
		3438	register_exticmd fx_want => sub {
		3439	my ($ns, $want) = @_;
		3440
		3441	while (my ($k, $v) = each %$want) {
		3442	$ns->fx_want ($k, $v);
		3443	}
		3444	};
		3445
		3446	sub load_resource_file($) {
		3447	my $guard = lock_acquire "load_resource_file";
		3448
		3449	my $status = load_resource_file_ $_[0];
		3450	get_slot 0.1, 100;
		3451	cf::arch::commit_load;
		3452
		3453	$status
		3454	}
		3455
		3456	sub reload_regions {
		3457	# HACK to clear player env face cache, we need some signal framework
		3458	# for this (global event?)
		3459	%ext::player_env::MUSIC_FACE_CACHE = ();
		3460
		3461	load_resource_file "$MAPDIR/regions"
		3462	or die "unable to load regions file\n";
		3463
		3464	for (cf::region::list) {
		3465	$_->{match} = qr/$_->{match}/
		3466	if exists $_->{match};
		3467	}
		3468	}
		3469
		3470	sub reload_facedata {
		3471	load_facedata "$DATADIR/facedata"
		3472	or die "unable to load facedata\n";
		3473	}
		3474
		3475	sub reload_archetypes {
		3476	load_resource_file "$DATADIR/archetypes"
		3477	or die "unable to load archetypes\n";
		3478	}
		3479
		3480	sub reload_treasures {
		3481	load_resource_file "$DATADIR/treasures"
		3482	or die "unable to load treasurelists\n";
		3483	}
		3484
		3485	sub reload_resources {
		3486	warn "reloading resource files...\n";
		3487
		3488	reload_facedata;
		3489	reload_archetypes;
		3490	reload_regions;
		3491	reload_treasures;
		3492
		3493	warn "finished reloading resource files\n";
		3494	}
		3495
		3496	sub reload_config {
		3497	warn "reloading config file...\n";
		3498
		3499	open my $fh, "<:utf8", "$CONFDIR/config"
		3500	or return;
		3501
		3502	local $/;
		3503	*CFG = YAML::XS::Load scalar <$fh>;
		3504
		3505	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3506
		3507	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3508	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3509
		3510	if (exists $CFG{mlockall}) {
		3511	eval {
		3512	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3513	and die "WARNING: m(un)lockall failed: $!\n";
		3514	};
		3515	warn $@ if $@;
		3516	}
		3517
		3518	warn "finished reloading resource files\n";
		3519	}
		3520
		3521	sub pidfile() {
		3522	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3523	or die "$PIDFILE: $!";
		3524	flock $fh, &Fcntl::LOCK_EX
		3525	or die "$PIDFILE: flock: $!";
		3526	$fh
		3527	}
		3528
		3529	# make sure only one server instance is running at any one time
		3530	sub atomic {
		3531	my $fh = pidfile;
		3532
		3533	my $pid = <$fh>;
		3534	kill 9, $pid if $pid > 0;
		3535
		3536	seek $fh, 0, 0;
		3537	print $fh $$;
		3538	}
		3539
		3540	sub main_loop {
		3541	warn "EV::loop starting\n";
		3542	if (1) {
		3543	EV::loop;
		3544	}
		3545	warn "EV::loop returned\n";
		3546	goto &main_loop unless $REALLY_UNLOOP;
		3547	}
		3548
		3549	sub main {
		3550	cf::init_globals; # initialise logging
		3551
		3552	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3553	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3554	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3555	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3556
		3557	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3558
		3559	# we must not ever block the main coroutine
		3560	local $Coro::idle = sub {
		3561	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3562	(async {
		3563	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3564	EV::loop EV::LOOP_ONESHOT;
		3565	})->prio (Coro::PRIO_MAX);
		3566	};
		3567
		3568	evthread_start IO::AIO::poll_fileno;
		3569
		3570	cf::sync_job {
		3571	cf::init_experience;
		3572	cf::init_anim;
		3573	cf::init_attackmess;
		3574	cf::init_dynamic;
		3575
		3576	cf::load_settings;
		3577	cf::load_materials;
		3578
		3579	reload_resources;
		3580	reload_config;
		3581	db_init;
		3582
		3583	cf::init_uuid;
		3584	cf::init_signals;
		3585	cf::init_skills;
		3586
		3587	cf::init_beforeplay;
		3588
		3589	atomic;
		3590
		3591	load_extensions;
		3592
		3593	utime time, time, $RUNTIMEFILE;
		3594
		3595	# no (long-running) fork's whatsoever before this point(!)
		3596	use POSIX ();
		3597	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3598
		3599	(pop @POST_INIT)->(0) while @POST_INIT;
		3600	};
		3601
		3602	cf::object::thawer::errors_are_fatal 0;
		3603	warn "parse errors in files are no longer fatal from this point on.\n";
		3604
		3605	main_loop;
		3606	}
		3607
		3608	#############################################################################
		3609	# initialisation and cleanup
		3610
		3611	# install some emergency cleanup handlers
		3612	BEGIN {
		3613	our %SIGWATCHER = ();
		3614	for my $signal (qw(INT HUP TERM)) {
		3615	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3616	cf::cleanup "SIG$signal";
		3617	};
		3618	}
		3619	}
		3620
		3621	sub write_runtime_sync {
		3622	my $t0 = AE::time;
		3623
		3624	# first touch the runtime file to show we are still running:
		3625	# the fsync below can take a very very long time.
		3626
		3627	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3628
		3629	my $guard = cf::lock_acquire "write_runtime";
		3630
		3631	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3632	or return;
		3633
		3634	my $value = $cf::RUNTIME + 90 + 10;
		3635	# 10 is the runtime save interval, for a monotonic clock
		3636	# 60 allows for the watchdog to kill the server.
		3637
		3638	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3639	and return;
		3640
		3641	# always fsync - this file is important
		3642	aio_fsync $fh
		3643	and return;
		3644
		3645	# touch it again to show we are up-to-date
		3646	aio_utime $fh, undef, undef;
		3647
		3648	close $fh
		3649	or return;
		3650
		3651	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3652	and return;
		3653
		3654	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3655
		3656	1
		3657	}
		3658
		3659	our $uuid_lock;
		3660	our $uuid_skip;
		3661
		3662	sub write_uuid_sync($) {
		3663	$uuid_skip ||= $_[0];
		3664
		3665	return if $uuid_lock;
		3666	local $uuid_lock = 1;
		3667
		3668	my $uuid = "$LOCALDIR/uuid";
		3669
		3670	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3671	or return;
		3672
		3673	my $value = uuid_seq uuid_cur;
		3674
		3675	unless ($value) {
		3676	warn "cowardly refusing to write zero uuid value!\n";
		3677	return;
		3678	}
		3679
		3680	my $value = uuid_str $value + $uuid_skip;
		3681	$uuid_skip = 0;
		3682
		3683	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3684	and return;
		3685
		3686	# always fsync - this file is important
		3687	aio_fsync $fh
		3688	and return;
		3689
		3690	close $fh
		3691	or return;
		3692
		3693	aio_rename "$uuid~", $uuid
		3694	and return;
		3695
		3696	warn "uuid file written ($value).\n";
		3697
		3698	1
		3699
		3700	}
		3701
		3702	sub write_uuid($$) {
		3703	my ($skip, $sync) = @_;
		3704
		3705	$sync ? write_uuid_sync $skip
		3706	: async { write_uuid_sync $skip };
		3707	}
		3708
		3709	sub emergency_save() {
		3710	my $freeze_guard = cf::freeze_mainloop;
		3711
		3712	warn "emergency_perl_save: enter\n";
		3713
		3714	cf::sync_job {
		3715	# this is a trade-off: we want to be very quick here, so
		3716	# save all maps without fsync, and later call a global sync
		3717	# (which in turn might be very very slow)
		3718	local $USE_FSYNC = 0;
		3719
		3720	# use a peculiar iteration method to avoid tripping on perl
		3721	# refcount bugs in for. also avoids problems with players
		3722	# and maps saved/destroyed asynchronously.
		3723	warn "emergency_perl_save: begin player save\n";
		3724	for my $login (keys %cf::PLAYER) {
		3725	my $pl = $cf::PLAYER{$login} or next;
		3726	$pl->valid or next;
		3727	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3728	$pl->save;
		3729	}
		3730	warn "emergency_perl_save: end player save\n";
		3731
		3732	warn "emergency_perl_save: begin map save\n";
		3733	for my $path (keys %cf::MAP) {
		3734	my $map = $cf::MAP{$path} or next;
		3735	$map->valid or next;
		3736	$map->save;
		3737	}
		3738	warn "emergency_perl_save: end map save\n";
		3739
		3740	warn "emergency_perl_save: begin database checkpoint\n";
		3741	BDB::db_env_txn_checkpoint $DB_ENV;
		3742	warn "emergency_perl_save: end database checkpoint\n";
		3743
		3744	warn "emergency_perl_save: begin write uuid\n";
		3745	write_uuid_sync 1;
		3746	warn "emergency_perl_save: end write uuid\n";
		3747	};
		3748
		3749	warn "emergency_perl_save: starting sync()\n";
		3750	IO::AIO::aio_sync sub {
		3751	warn "emergency_perl_save: finished sync()\n";
		3752	};
		3753
		3754	warn "emergency_perl_save: leave\n";
		3755	}
		3756
		3757	sub post_cleanup {
		3758	my ($make_core) = @_;
		3759
		3760	warn Carp::longmess "post_cleanup backtrace"
		3761	if $make_core;
		3762
		3763	my $fh = pidfile;
		3764	unlink $PIDFILE if <$fh> == $$;
		3765	}
		3766
		3767	# a safer delete_package, copied from Symbol
		3768	sub clear_package($) {
		3769	my $pkg = shift;
		3770
		3771	# expand to full symbol table name if needed
		3772	unless ($pkg =~ /^main::.*::$/) {
		3773	$pkg = "main$pkg" if $pkg =~ /^::/;
		3774	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3775	$pkg .= '::' unless $pkg =~ /::$/;
		3776	}
		3777
		3778	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3779	my $stem_symtab = *{$stem}{HASH};
		3780
		3781	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3782	or return;
		3783
		3784	# clear all symbols
		3785	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3786	for my $name (keys %$leaf_symtab) {
		3787	_gv_clear *{"$pkg$name"};
		3788	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3789	}
		3790	}
		3791
		3792	sub do_reload_perl() {
		3793	# can/must only be called in main
		3794	if ($Coro::current != $Coro::main) {
		3795	warn "can only reload from main coroutine";
		3796	return;
		3797	}
		3798
		3799	return if $RELOAD++;
		3800
		3801	my $t1 = AE::time;
		3802
		3803	while ($RELOAD) {
		3804	warn "reloading...";
		3805
		3806	warn "entering sync_job";
		3807
		3808	cf::sync_job {
		3809	cf::write_runtime_sync; # external watchdog should not bark
		3810	cf::emergency_save;
		3811	cf::write_runtime_sync; # external watchdog should not bark
		3812
		3813	warn "syncing database to disk";
		3814	BDB::db_env_txn_checkpoint $DB_ENV;
		3815
		3816	# if anything goes wrong in here, we should simply crash as we already saved
		3817
		3818	warn "flushing outstanding aio requests";
		3819	while (IO::AIO::nreqs || BDB::nreqs) {
		3820	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3821	}
		3822
		3823	warn "cancelling all extension coros";
		3824	$_->cancel for values %EXT_CORO;
		3825	%EXT_CORO = ();
		3826
		3827	warn "removing commands";
		3828	%COMMAND = ();
		3829
		3830	warn "removing ext/exti commands";
		3831	%EXTCMD = ();
		3832	%EXTICMD = ();
		3833
		3834	warn "unloading/nuking all extensions";
		3835	for my $pkg (@EXTS) {
		3836	warn "... unloading $pkg";
		3837
		3838	if (my $cb = $pkg->can ("unload")) {
		3839	eval {
		3840	$cb->($pkg);
		3841	1
		3842	} or warn "$pkg unloaded, but with errors: $@";
		3843	}
		3844
		3845	warn "... clearing $pkg";
		3846	clear_package $pkg;
		3847	}
		3848
		3849	warn "unloading all perl modules loaded from $LIBDIR";
		3850	while (my ($k, $v) = each %INC) {
		3851	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3852
		3853	warn "... unloading $k";
		3854	delete $INC{$k};
		3855
		3856	$k =~ s/\.pm$//;
		3857	$k =~ s/\//::/g;
		3858
		3859	if (my $cb = $k->can ("unload_module")) {
		3860	$cb->();
		3861	}
		3862
		3863	clear_package $k;
		3864	}
		3865
		3866	warn "getting rid of safe::, as good as possible";
		3867	clear_package "safe::$_"
		3868	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		3869
		3870	warn "unloading cf.pm \"a bit\"";
		3871	delete $INC{"cf.pm"};
		3872	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
		3873
		3874	# don't, removes xs symbols, too,
		3875	# and global variables created in xs
		3876	#clear_package __PACKAGE__;
		3877
		3878	warn "unload completed, starting to reload now";
		3879
		3880	warn "reloading cf.pm";
		3881	require cf;
		3882	cf::_connect_to_perl_1;
		3883
		3884	warn "loading config and database again";
		3885	cf::reload_config;
		3886
		3887	warn "loading extensions";
		3888	cf::load_extensions;
		3889
		3890	if ($REATTACH_ON_RELOAD) {
		3891	warn "reattaching attachments to objects/players";
		3892	_global_reattach; # objects, sockets
		3893	warn "reattaching attachments to maps";
		3894	reattach $_ for values %MAP;
		3895	warn "reattaching attachments to players";
		3896	reattach $_ for values %PLAYER;
		3897	}
		3898
		3899	warn "running post_init jobs";
		3900	(pop @POST_INIT)->(1) while @POST_INIT;
		3901
		3902	warn "leaving sync_job";
		3903
		3904	1
		3905	} or do {
		3906	warn $@;
		3907	cf::cleanup "error while reloading, exiting.";
		3908	};
		3909
		3910	warn "reloaded";
		3911	--$RELOAD;
		3912	}
		3913
		3914	$t1 = AE::time - $t1;
		3915	warn "reload completed in ${t1}s\n";
		3916	};
		3917
		3918	our $RELOAD_WATCHER; # used only during reload
		3919
		3920	sub reload_perl() {
		3921	# doing reload synchronously and two reloads happen back-to-back,
		3922	# coro crashes during coro_state_free->destroy here.
		3923
		3924	$RELOAD_WATCHER ||= cf::async {
		3925	Coro::AIO::aio_wait cache_extensions;
		3926
		3927	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3928	do_reload_perl;
		3929	undef $RELOAD_WATCHER;
		3930	};
		3931	};
		3932	}
		3933
		3934	register_command "reload" => sub {
		3935	my ($who, $arg) = @_;
		3936
		3937	if ($who->flag (FLAG_WIZ)) {
		3938	$who->message ("reloading server.");
		3939	async {
		3940	$Coro::current->{desc} = "perl_reload";
		3941	reload_perl;
		3942	};
		3943	}
		3944	};
		3945
		3946	unshift @INC, $LIBDIR;
		3947
		3948	my $bug_warning = 0;
		3949
		3950	our @WAIT_FOR_TICK;
		3951	our @WAIT_FOR_TICK_BEGIN;
		3952
		3953	sub wait_for_tick {
		3954	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3955
		3956	my $signal = new Coro::Signal;
		3957	push @WAIT_FOR_TICK, $signal;
		3958	$signal->wait;
		3959	}
		3960
		3961	sub wait_for_tick_begin {
		3962	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3963
		3964	my $signal = new Coro::Signal;
		3965	push @WAIT_FOR_TICK_BEGIN, $signal;
		3966	$signal->wait;
		3967	}
		3968
		3969	sub tick {
		3970	if ($Coro::current != $Coro::main) {
		3971	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3972	unless ++$bug_warning > 10;
		3973	return;
		3974	}
		3975
		3976	cf::server_tick; # one server iteration
		3977
		3978	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		3979
		3980	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3981	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3982	Coro::async_pool {
		3983	$Coro::current->{desc} = "runtime saver";
		3984	write_runtime_sync
		3985	or warn "ERROR: unable to write runtime file: $!";
		3986	};
		3987	}
		3988
		3989	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3990	$sig->send;
		3991	}
		3992	while (my $sig = shift @WAIT_FOR_TICK) {
		3993	$sig->send;
		3994	}
		3995
		3996	$LOAD = ($NOW - $TICK_START) / $TICK;
		3997	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3998
		3999	if (0) {
		4000	if ($NEXT_TICK) {
		4001	my $jitter = $TICK_START - $NEXT_TICK;
		4002	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4003	warn "jitter $JITTER\n";#d#
		4004	}
		4005	}
		4006	}
1090		4007
1091	{	4008	{
1092	my $path = cf::localdir . "/database.pst";	4009	# configure BDB
1093		4010
1094	sub db_load() {	4011	BDB::min_parallel 16;
1095	warn "loading database $path\n";#d# remove later	4012	BDB::max_poll_reqs $TICK * 0.1;
1096	$DB = stat $path ? Storable::retrieve $path : { };	4013	$AnyEvent::BDB::WATCHER->priority (1);
1097	}
1098		4014
1099	my $pid;	4015	unless ($DB_ENV) {
		4016	$DB_ENV = BDB::db_env_create;
		4017	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4018	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4019	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4020	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4021	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
1100		4022
1101	sub db_save() {	4023	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 {	4024	eval {
1138	$DB->{$_[0]} = $_[1];	4025	BDB::db_env_open
1139	}	4026	$DB_ENV,
1140	db_dirty;	4027	$BDBDIR,
1141	}	4028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4030	0666;
1142		4031
1143	cf::global->attach (	4032	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	}	4033	};
1202		4034
1203	Symbol::delete_package $k;	4035	cf::cleanup "db_env_open(db): $@" if $@;
1204	}	4036	};
		4037	}
1205		4038
1206	# sync database to disk	4039	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1207	cf::db_sync;	4040	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	};	4041	};
1240	$msg->($@) if $@;	4042	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1241		4043	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	};	4044	};
		4045	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4046	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4047	};
1250	}	4048	}
1251		4049
1252	register "<global>", __PACKAGE__;	4050	{
		4051	# configure IO::AIO
1253		4052
1254	register_command "perl-reload" => sub {	4053	IO::AIO::min_parallel 8;
		4054	IO::AIO::max_poll_time $TICK * 0.1;
		4055	undef $AnyEvent::AIO::WATCHER;
		4056	}
		4057
		4058	my $_log_backtrace;
		4059
		4060	sub _log_backtrace {
1255	my ($who, $arg) = @_;	4061	my ($msg, @addr) = @_;
1256		4062
1257	if ($who->flag (FLAG_WIZ)) {	4063	$msg =~ s/\n//;
1258	_perl_reload {	4064
1259	warn $_[0];	4065	# limit the # of concurrent backtraces
1260	$who->message ($_[0]);	4066	if ($_log_backtrace < 2) {
		4067	++$_log_backtrace;
		4068	my $perl_bt = Carp::longmess $msg;
		4069	async {
		4070	$Coro::current->{desc} = "abt $msg";
		4071
		4072	my @bt = fork_call {
		4073	@addr = map { sprintf "%x", $_ } @addr;
		4074	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4075	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4076	or die "addr2line: $!";
		4077
		4078	my @funcs;
		4079	my @res = <$fh>;
		4080	chomp for @res;
		4081	while (@res) {
		4082	my ($func, $line) = splice @res, 0, 2, ();
		4083	push @funcs, "[$func] $line";
		4084	}
		4085
		4086	@funcs
		4087	};
		4088
		4089	LOG llevInfo, "[ABT] $perl_bt\n";
		4090	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4091	LOG llevInfo, "[ABT] $_\n" for @bt;
		4092	--$_log_backtrace;
1261	};	4093	};
1262	}	4094	} else {
1263	};	4095	LOG llevInfo, "[ABT] $msg\n";
1264		4096	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	},	4097	}
1283	);	4098	}
1284		4099
1285	IO::AIO::max_poll_time $TICK * 0.2;	4100	# load additional modules
		4101	require "cf/$_.pm" for @EXTRA_MODULES;
		4102	cf::_connect_to_perl_2;
1286		4103
1287	Event->io (fd => IO::AIO::poll_fileno,	4104	END { cf::emergency_save }
1288	poll => 'r',
1289	prio => 5,
1290	data => WF_AUTOCANCEL,
1291	cb => \&IO::AIO::poll_cb);
1292		4105
1293	1	4106	1
1294		4107

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