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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.561 by root, Fri Apr 22 06:10:33 2011 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
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3;	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		78
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	123	our $NEXT_TICK;
45	our $NOW;	124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
46		132
47	our %CFG;	133	our %CFG;
48		134
49	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
51		138
52	our %MAP; # all maps	139	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	140	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	141	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	142
56	our %EXT_CORO;	143	# used to convert map paths into valid unix filenames by replacing / by ∕
		144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		145
		146	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		147	our $LOADAVG; # same thing, but with alpha-smoothing
		148	our $JITTER; # average jitter
		149	our $TICK_START; # for load detecting purposes
		150
		151	our @POST_INIT;
		152
		153	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		154	our $REALLY_UNLOOP; # never set to true, please :)
57		155
58	binmode STDOUT;	156	binmode STDOUT;
59	binmode STDERR;	157	binmode STDERR;
60		158
61	# read virtual server time, if available	159	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
66	}	164	}
67		165
68	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		167
74	# a special map that is always available	168	mkdir $_
75	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		170
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	171	our $EMERGENCY_POSITION;
		172
		173	sub cf::map::normalise;
		174
		175	sub in_main() {
		176	$Coro::current == $Coro::main
		177	}
		178
		179	#############################################################################
		180
		181	%REFLECT = ();
		182	for (@REFLECT) {
		183	my $reflect = JSON::XS::decode_json $_;
		184	$REFLECT{$reflect->{class}} = $reflect;
		185	}
		186
		187	# this is decidedly evil
		188	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		189
79	#############################################################################	190	#############################################################################
80		191
81	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
82		193
…		…
89	=item $cf::RUNTIME	200	=item $cf::RUNTIME
90		201
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	202	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	203	every server tick.
93		204
94	=item $cf::LIBDIR	205	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		206	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		207	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		208
96	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	210	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		211	unique-items directory, player file directory, random maps directory and
		212	database environment.
98		213
99	=item $cf::NOW	214	=item $cf::NOW
100		215
101	The time of the last (current) server tick.	216	The time of the last (current) server tick.
102		217
103	=item $cf::TICK	218	=item $cf::TICK
104		219
105	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
106		221
		222	=item $cf::LOADAVG
		223
		224	The current CPU load on the server (alpha-smoothed), as a value between 0
		225	(none) and 1 (overloaded), indicating how much time is spent on processing
		226	objects per tick. Healthy values are < 0.5.
		227
		228	=item $cf::LOAD
		229
		230	The raw value load value from the last tick.
		231
107	=item %cf::CFG	232	=item %cf::CFG
108		233
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	235	from wherever your confdir points to.
111		236
		237	=item cf::wait_for_tick, cf::wait_for_tick_begin
		238
		239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		240	returns directly I<after> the tick processing (and consequently, can only wake one thread
		241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
		259
112	=back	260	=back
113		261
114	=cut	262	=cut
115		263
116	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	265	sub warn (@) { LOG llevWarn , join "", @_ }
		266	sub info (@) { LOG llevInfo , join "", @_ }
		267	sub debug(@) { LOG llevDebug, join "", @_ }
		268	sub trace(@) { LOG llevTrace, join "", @_ }
		269
		270	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	271	my $msg = join "", @_;
119	utf8::encode $msg;
120		272
121	$msg .= "\n"	273	$msg .= "\n"
122	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
123		275
124	LOG llevError, "cfperl: $msg";	276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	277
126	}	278	LOG llevWarn, $msg;
		279	};
		280
		281	$Coro::State::DIEHOOK = sub {
		282	return unless $^S eq 0; # "eq", not "=="
		283
		284	error Carp::longmess $_[0];
		285
		286	if (in_main) {#d#
		287	error "DIEHOOK called in main context, Coro bug?\n";#d#
		288	return;#d#
		289	}#d#
		290
		291	# kill coroutine otherwise
		292	Coro::terminate
		293	};
127		294
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	299	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		300	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	301	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		302
135	# we bless all objects into (empty) derived classes to force a method lookup	303	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	304	# within the Safe compartment.
137	for my $pkg (qw(	305	for my $pkg (qw(
138	cf::global cf::attachable	306	cf::global cf::attachable
139	cf::object cf::object::player	307	cf::object cf::object::player
140	cf::client cf::player	308	cf::client cf::player
141	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
142	cf::map cf::party cf::region	311	cf::party cf::region
143	)) {	312	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	314	}
147		315
148	$Event::DIED = sub {	316	$EV::DIED = sub {
149	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
150	};	318	};
151		319
152	my %ext_pkg;	320	#############################################################################
153	my @exts;	321
154	my @hook;	322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
155		326
156	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
157		328
158	=over 4	329	=over 4
159		330
160	=cut	331	=item dumpval $ref
161		332
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	333	=cut
163		334
		335	sub dumpval {
		336	eval {
		337	local $SIG{__DIE__};
		338	my $d;
		339	if (1) {
		340	$d = new Data::Dumper([$_[0]], ["*var"]);
		341	$d->Terse(1);
		342	$d->Indent(2);
		343	$d->Quotekeys(0);
		344	$d->Useqq(1);
		345	#$d->Bless(...);
		346	$d->Seen($_[1]) if @_ > 1;
		347	$d = $d->Dump();
		348	}
		349	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		350	$d
		351	} || "[unable to dump $_[0]: '$@']";
		352	}
		353
		354	=item $scalar = load_file $path
		355
		356	Loads the given file from path and returns its contents. Croaks on error
		357	and can block.
		358
		359	=cut
		360
		361	sub load_file($) {
		362	0 <= aio_load $_[0], my $data
		363	or Carp::croak "$_[0]: $!";
		364
		365	$data
		366	}
		367
164	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
165		369
166	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
167		371
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
176		373
177	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
178		375
179	=cut	376	=cut
180		377
181	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
183	JSON::Syck::Dump $_[0]	380	sub encode_json($) { $json_coder->encode ($_[0]) }
		381	sub decode_json($) { $json_coder->decode ($_[0]) }
		382
		383	=item $ref = cf::decode_storable $scalar
		384
		385	Same as Coro::Storable::thaw, so blocks.
		386
		387	=cut
		388
		389	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		390
		391	=item $ref = cf::decode_yaml $scalar
		392
		393	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		394
		395	=cut
		396
		397	sub decode_yaml($) {
		398	fork_call { YAML::XS::Load $_[0] } @_
184	}	399	}
		400
		401	=item $scalar = cf::unlzf $scalar
		402
		403	Same as Compress::LZF::compress, but takes server ticks into account, so
		404	blocks.
		405
		406	=cut
		407
		408	sub unlzf($) {
		409	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		410	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		411	Compress::LZF::decompress $_[0]
		412	}
		413
		414	=item cf::post_init { BLOCK }
		415
		416	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		417	but I<before> the server starts ticking again.
		418
		419	The codeblock will have a single boolean argument to indicate whether this
		420	is a reload or not.
		421
		422	=cut
		423
		424	sub post_init(&) {
		425	push @POST_INIT, shift;
		426	}
		427
		428	sub _post_init {
		429	trace "running post_init jobs";
		430
		431	# run them in parallel...
		432
		433	my @join;
		434
		435	while () {
		436	push @join, map &Coro::async ($_, 0), @POST_INIT;
		437	@POST_INIT = ();
		438
		439	@join or last;
		440
		441	(pop @join)->join;
		442	}
		443	}
		444
		445	=item cf::lock_wait $string
		446
		447	Wait until the given lock is available. See cf::lock_acquire.
		448
		449	=item my $lock = cf::lock_acquire $string
		450
		451	Wait until the given lock is available and then acquires it and returns
		452	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		453	for example when the coroutine gets canceled), the lock is automatically
		454	returned.
		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
		459	Lock names should begin with a unique identifier (for example, cf::map::find
		460	uses map_find and cf::map::load uses map_load).
		461
		462	=item $locked = cf::lock_active $string
		463
		464	Return true if the lock is currently active, i.e. somebody has locked it.
		465
		466	=cut
		467
		468	our $LOCKS = new Coro::SemaphoreSet;
		469
		470	sub lock_wait($) {
		471	$LOCKS->wait ($_[0]);
		472	}
		473
		474	sub lock_acquire($) {
		475	$LOCKS->guard ($_[0])
		476	}
		477
		478	sub lock_active($) {
		479	$LOCKS->count ($_[0]) < 1
		480	}
		481
		482	sub freeze_mainloop {
		483	tick_inhibit_inc;
		484
		485	&Guard::guard (\&tick_inhibit_dec);
		486	}
		487
		488	=item cf::periodic $interval, $cb
		489
		490	Like EV::periodic, but randomly selects a starting point so that the actions
		491	get spread over time.
		492
		493	=cut
		494
		495	sub periodic($$) {
		496	my ($interval, $cb) = @_;
		497
		498	my $start = rand List::Util::min 180, $interval;
		499
		500	EV::periodic $start, $interval, 0, $cb
		501	}
		502
		503	=item cf::get_slot $time[, $priority[, $name]]
		504
		505	Allocate $time seconds of blocking CPU time at priority C<$priority>
		506	(default: 0): This call blocks and returns only when you have at least
		507	C<$time> seconds of cpu time till the next tick. The slot is only valid
		508	till the next cede.
		509
		510	Background jobs should use a priority les than zero, interactive jobs
		511	should use 100 or more.
		512
		513	The optional C<$name> can be used to identify the job to run. It might be
		514	used for statistical purposes and should identify the same time-class.
		515
		516	Useful for short background jobs.
		517
		518	=cut
		519
		520	our @SLOT_QUEUE;
		521	our $SLOT_QUEUE;
		522	our $SLOT_DECAY = 0.9;
		523
		524	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		525	$SLOT_QUEUE = Coro::async {
		526	$Coro::current->desc ("timeslot manager");
		527
		528	my $signal = new Coro::Signal;
		529	my $busy;
		530
		531	while () {
		532	next_job:
		533
		534	my $avail = cf::till_tick;
		535
		536	for (0 .. $#SLOT_QUEUE) {
		537	if ($SLOT_QUEUE[$_][0] <= $avail) {
		538	$busy = 0;
		539	my $job = splice @SLOT_QUEUE, $_, 1, ();
		540	$job->[2]->send;
		541	Coro::cede;
		542	goto next_job;
		543	} else {
		544	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		545	}
		546	}
		547
		548	if (@SLOT_QUEUE) {
		549	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		550	push @cf::WAIT_FOR_TICK, $signal;
		551	$signal->wait;
		552	} else {
		553	$busy = 0;
		554	Coro::schedule;
		555	}
		556	}
		557	};
		558
		559	sub get_slot($;$$) {
		560	return if tick_inhibit || $Coro::current == $Coro::main;
		561
		562	my ($time, $pri, $name) = @_;
		563
		564	$time = clamp $time, 0.01, $TICK * .6;
		565
		566	my $sig = new Coro::Signal;
		567
		568	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		569	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		570	$SLOT_QUEUE->ready;
		571	$sig->wait;
		572	}
		573
		574	=item cf::async { BLOCK }
		575
		576	Currently the same as Coro::async_pool, meaning you cannot use
		577	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		578	thing you are allowed to do is call C<prio> on it.
		579
		580	=cut
		581
		582	BEGIN { *async = \&Coro::async_pool }
185		583
186	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
187		585
188	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	587	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	588	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		589	acceptable.
191		590
192	If it must be done, put the blocking parts into C<sync_job>. This will run	591	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	592	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	593	server will be frozen during this time, so the block should either finish
195	fast or be very important.	594	fast or be very important.
…		…
197	=cut	596	=cut
198		597
199	sub sync_job(&) {	598	sub sync_job(&) {
200	my ($job) = @_;	599	my ($job) = @_;
201		600
		601	if (in_main) {
		602	my $time = AE::time;
		603
		604	# this is the main coro, too bad, we have to block
		605	# till the operation succeeds, freezing the server :/
		606
		607	#LOG llevError, Carp::longmess "sync job";#d#
		608
		609	my $freeze_guard = freeze_mainloop;
		610
202	my $busy = 1;	611	my $busy = 1;
203	my @res;	612	my @res;
204		613
205	my $coro = Coro::async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
206	@res = eval { $job->() };	616	@res = eval { $job->() };
207	warn $@ if $@;	617	error $@ if $@;
208	undef $busy;	618	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {
212	# TODO: use suspend/resume instead
213	local $FREEZE = 1;
214	$coro->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
		620
215	while ($busy) {	621	while ($busy) {
		622	if (Coro::nready) {
216	Coro::cede_notself;	623	Coro::cede_notself;
217	Event::one_event unless Coro::nready;	624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
218	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
		632
		633	wantarray ? @res : $res[0]
219	} else {	634	} else {
220	$coro->join;	635	# we are in another coroutine, how wonderful, everything just works
		636
		637	$job->()
221	}	638	}
222
223	wantarray ? @res : $res[0]
224	}	639	}
225		640
226	=item $coro = cf::coro { BLOCK }	641	=item $coro = cf::async_ext { BLOCK }
227		642
228	Creates and returns a new coro. This coro is automcatially being canceled	643	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	644	extension calling this is being unloaded.
230		645
231	=cut	646	=cut
232		647
233	sub coro(&) {	648	sub async_ext(&) {
234	my $cb = shift;	649	my $cb = shift;
235		650
236	my $coro; $coro = async {	651	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		652
243	$coro->on_destroy (sub {	653	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	654	delete $EXT_CORO{$coro+0};
245	});	655	});
246	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
247		657
248	$coro	658	$coro
249	}	659	}
250		660
251	sub write_runtime {	661	=item fork_call { }, @args
252	my $runtime = cf::localdir . "/runtime";
253		662
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
255	or return;	664	process, returning the results. Everything must be serialisable with
		665	Coro::Storable. May, of course, block. Note that the executed sub may
		666	never block itself or use any form of event handling.
256		667
257	my $value = $cf::RUNTIME;	668	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		669
261	aio_fsync $fh	670	sub post_fork {
262	and return;	671	reset_signals;
		672	}
263		673
264	close $fh	674	sub fork_call(&@) {
265	or return;	675	my ($cb, @args) = @_;
266		676
267	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
268	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
269		680
		681	my @res = Coro::Util::fork_eval {
		682	cf::post_fork;
		683	&$cb
		684	} @args;
		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
270	1	690	(
		691	"counter value" => cf::object::object_count,
		692	"objects created" => cf::object::create_count,
		693	"objects destroyed" => cf::object::destroy_count,
		694	"freelist size" => cf::object::free_count,
		695	"allocated objects" => cf::object::objects_size,
		696	"active objects" => cf::object::actives_size,
		697	)
		698	}
		699
		700	=item $coin = coin_from_name $name
		701
		702	=cut
		703
		704	our %coin_alias = (
		705	"silver" => "silvercoin",
		706	"silvercoin" => "silvercoin",
		707	"silvercoins" => "silvercoin",
		708	"gold" => "goldcoin",
		709	"goldcoin" => "goldcoin",
		710	"goldcoins" => "goldcoin",
		711	"platinum" => "platinacoin",
		712	"platinumcoin" => "platinacoin",
		713	"platinumcoins" => "platinacoin",
		714	"platina" => "platinacoin",
		715	"platinacoin" => "platinacoin",
		716	"platinacoins" => "platinacoin",
		717	"royalty" => "royalty",
		718	"royalties" => "royalty",
		719	);
		720
		721	sub coin_from_name($) {
		722	$coin_alias{$_[0]}
		723	? cf::arch::find $coin_alias{$_[0]}
		724	: undef
		725	}
		726
		727	=item $value = cf::db_get $family => $key
		728
		729	Returns a single value from the environment database.
		730
		731	=item cf::db_put $family => $key => $value
		732
		733	Stores the given C<$value> in the family. It can currently store binary
		734	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		735
		736	=item $db = cf::db_table "name"
		737
		738	Create and/or open a new database table. The string must not be "db" and must be unique
		739	within each server.
		740
		741	=cut
		742
		743	sub db_table($) {
		744	cf::error "db_get called from main context"
		745	if $Coro::current == $Coro::main;
		746
		747	my ($name) = @_;
		748	my $db = BDB::db_create $DB_ENV;
		749
		750	eval {
		751	$db->set_flags (BDB::CHKSUM);
		752
		753	utf8::encode $name;
		754	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		755	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		756	cf::cleanup "db_open(db): $!" if $!;
		757	};
		758	cf::cleanup "db_open(db): $@" if $@;
		759
		760	$db
		761	}
		762
		763	our $DB;
		764
		765	sub db_init {
		766	$DB ||= db_table "db";
		767	}
		768
		769	sub db_get($$) {
		770	my $key = "$_[0]/$_[1]";
		771
		772	cf::error "db_get called from main context"
		773	if $Coro::current == $Coro::main;
		774
		775	BDB::db_get $DB, undef, $key, my $data;
		776
		777	$! ? ()
		778	: $data
		779	}
		780
		781	sub db_put($$$) {
		782	BDB::dbreq_pri 4;
		783	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		784	}
		785
		786	=item cf::cache $id => [$paths...], $processversion => $process
		787
		788	Generic caching function that returns the value of the resource $id,
		789	caching and regenerating as required.
		790
		791	This function can block.
		792
		793	=cut
		794
		795	sub cache {
		796	my ($id, $src, $processversion, $process) = @_;
		797
		798	my $meta =
		799	join "\x00",
		800	$processversion,
		801	map {
		802	aio_stat $_
		803	and Carp::croak "$_: $!";
		804
		805	($_, (stat _)[7,9])
		806	} @$src;
		807
		808	my $dbmeta = db_get cache => "$id/meta";
		809	if ($dbmeta ne $meta) {
		810	# changed, we may need to process
		811
		812	my @data;
		813	my $md5;
		814
		815	for (0 .. $#$src) {
		816	$data[$_] = load_file $src->[$_];
		817	}
		818
		819	# if processing is expensive, check
		820	# checksum first
		821	if (1) {
		822	$md5 =
		823	join "\x00",
		824	$processversion,
		825	map {
		826	cf::cede_to_tick;
		827	($src->[$_], Digest::MD5::md5_hex $data[$_])
		828	} 0.. $#$src;
		829
		830
		831	my $dbmd5 = db_get cache => "$id/md5";
		832	if ($dbmd5 eq $md5) {
		833	db_put cache => "$id/meta", $meta;
		834
		835	return db_get cache => "$id/data";
		836	}
		837	}
		838
		839	my $t1 = Time::HiRes::time;
		840	my $data = $process->(\@data);
		841	my $t2 = Time::HiRes::time;
		842
		843	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		844
		845	db_put cache => "$id/data", $data;
		846	db_put cache => "$id/md5" , $md5;
		847	db_put cache => "$id/meta", $meta;
		848
		849	return $data;
		850	}
		851
		852	db_get cache => "$id/data"
		853	}
		854
		855	=item cf::datalog type => key => value, ...
		856
		857	Log a datalog packet of the given type with the given key-value pairs.
		858
		859	=cut
		860
		861	sub datalog($@) {
		862	my ($type, %kv) = @_;
		863	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
271	}	864	}
272		865
273	=back	866	=back
274		867
275	=cut	868	=cut
276		869
277	#############################################################################	870	#############################################################################
278		871
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386
387	#############################################################################
388
389	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
390		873
391	Many objects in crossfire are so-called attachable objects. That means you can	874	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	875	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
394		877
395	In the following description, CLASS can be any of C<global>, C<object>	878	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	879	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	880	Deliantra).
398		881
399	=over 4	882	=over 4
400		883
401	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
402		885
…		…
446	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
447		930
448	Register an attachment by C<$name> through which attachable objects of the	931	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
450		933
451	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	935	that are attached at load/instantiate time, thus the need for a name.
453		936
454	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
455		938
456	=over 4	939	=over 4
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	1000	our @CB_MAP = ();
518		1001
519	my %attachment;	1002	my %attachment;
520		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
521	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
523		1012
524	use sort 'stable';	1013	use sort 'stable';
525		1014
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
560		1049
561	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		1054
566	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
568		1057
569	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
574		1063
575	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
576	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
577		1066
578	} elsif (ref $type) {	1067	} elsif (ref $type) {
579	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
580		1069
581	} else {	1070	} else {
582	shift @arg;	1071	shift @arg;
583	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
584	}	1073	}
585	}	1074	}
586	}	1075	}
587		1076
588	sub _object_attach {	1077	sub _object_attach {
…		…
598	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
599	}	1088	}
600		1089
601	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
602	} else {	1091	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
604	}	1093	}
605		1094
606	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
607	}	1096	}
608		1097
…		…
610	if (ref $_[0]) {	1099	if (ref $_[0]) {
611	_object_attach @_;	1100	_object_attach @_;
612	} else {	1101	} else {
613	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
614	}	1103	}
		1104	_recalc_want;
615	};	1105	};
616		1106
617	# all those should be optimised	1107	# all those should be optimised
618	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
623	reattach ($obj);	1113	reattach ($obj);
624	} else {	1114	} else {
625	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
626	}	1116	}
		1117	_recalc_want;
627	};	1118	};
628		1119
629	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
631		1122
…		…
646	";	1137	";
647	die if $@;	1138	die if $@;
648	}	1139	}
649		1140
650	our $override;	1141	our $override;
651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1142	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
652		1143
653	sub override {	1144	sub override {
654	$override = 1;	1145	$override = 1;
655	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
656	}	1147	}
657		1148
658	sub do_invoke {	1149	sub do_invoke {
659	my $event = shift;	1150	my $event = shift;
660	my $callbacks = shift;	1151	my $callbacks = shift;
661		1152
662	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
663		1154
664	local $override;	1155	local $override;
665		1156
666	for (@$callbacks) {	1157	for (@$callbacks) {
667	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
668		1159
669	if ($@) {	1160	if ($@) {
670	warn "$@";
671	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
672	override;	1162	override;
673	}	1163	}
674		1164
675	return 1 if $override;	1165	return 1 if $override;
676	}	1166	}
677		1167
678	0	1168	0
679	}	1169	}
680		1170
681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
682		1172
683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
684		1174
685	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
686		1176
687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1177	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
688	removed in future versions), and there is no public API to access override	1178	removed in future versions), and there is no public API to access override
689	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		1180
691	=back	1181	=back
692		1182
693	=cut	1183	=cut
694		1184
695	#############################################################################	1185	#############################################################################
696	# object support	1186	# object support
		1187
		1188	sub _object_equal($$);
		1189	sub _object_equal($$) {
		1190	my ($a, $b) = @_;
		1191
		1192	return 0 unless (ref $a) eq (ref $b);
		1193
		1194	if ("HASH" eq ref $a) {
		1195	my @ka = keys %$a;
		1196	my @kb = keys %$b;
		1197
		1198	return 0 if @ka != @kb;
		1199
		1200	for (0 .. $#ka) {
		1201	return 0 unless $ka[$_] eq $kb[$_];
		1202	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1203	}
		1204
		1205	} elsif ("ARRAY" eq ref $a) {
		1206
		1207	return 0 if @$a != @$b;
		1208
		1209	for (0 .. $#$a) {
		1210	return 0 unless _object_equal $a->[$_], $b->[$_];
		1211	}
		1212
		1213	} elsif ($a ne $b) {
		1214	return 0;
		1215	}
		1216
		1217	1
		1218	}
		1219
		1220	our $SLOW_MERGES;#d#
		1221	sub _can_merge {
		1222	my ($ob1, $ob2) = @_;
		1223
		1224	++$SLOW_MERGES;#d#
		1225
		1226	# we do the slow way here
		1227	return _object_equal $ob1, $ob2
		1228	}
697		1229
698	sub reattach {	1230	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	1232	my ($obj) = @_;
		1233
		1234	# no longer needed after getting rid of delete_package?
		1235	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		1236
702	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
703		1238
704	@$registry = ();	1239	@$registry = ();
705		1240
…		…
710	for (@$attach) {	1245	for (@$attach) {
711	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
712	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
713	}	1248	}
714	} else {	1249	} else {
715	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
716	}	1251	}
717	}	1252	}
718	}	1253	}
719		1254
720	cf::attachable->attach (	1255	cf::attachable->attach (
721	prio => -1000000,	1256	prio => -1000000,
722	on_instantiate => sub {	1257	on_instantiate => sub {
723	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
724		1259
725	$data = from_json $data;	1260	$data = decode_json $data;
726		1261
727	for (@$data) {	1262	for (@$data) {
728	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
729		1264
730	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1281	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
748		1283
749	sync_job {	1284	sync_job {
750	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
753		1290
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1293	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1294	if ($cf::USE_FSYNC) {
		1295	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;
757	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
758	close $fh;	1298	aio_close $fh;
759		1299
760	if (@$objs) {	1300	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1301	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1304	aio_write $fh, 0, (length $data), $data, 0;
		1305	if ($cf::USE_FSYNC) {
		1306	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;
765	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
766	close $fh;	1309	aio_close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
768	}	1311	}
769	} else {	1312	} else {
770	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
771	}	1314	}
772		1315
773	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
774	} else {	1320	} else {
775	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
776	}	1322	}
777	} else {	1323	} else {
778	aio_unlink $filename;	1324	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
780	}	1326	}
781	}	1327	};
782	}	1328	}
783		1329
784	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
786		1332
…		…
798	or return;	1344	or return;
799		1345
800	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
802	or return;	1348	or return;
		1349
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
804	}	1352	}
805		1353
		1354	utf8::decode (my $decname = $filename);
		1355	trace sprintf "loading %s (%d,%d)\n",
		1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
806	return ($data, $av);	1359	($data, $av)
807	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
808		1367
809	#############################################################################	1368	#############################################################################
810	# command handling &c	1369	# command handling &c
811		1370
812	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1385	}
827		1386
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1388
830	Register a callbackf ro execution when the client sends an extcmd packet.	1389	Register a callback for execution when the client sends an (synchronous)
		1390	extcmd packet. Ext commands will be processed in the order they are
		1391	received by the server, like other user commands. The first argument is
		1392	the logged-in player. Ext commands can only be processed after a player
		1393	has logged in successfully.
831		1394
832	If the callback returns something, it is sent back as if reply was being	1395	If the callback returns something, it is sent back as if reply was being
833	called.	1396	called.
834		1397
		1398	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1399
		1400	Register a callback for execution when the client sends an (asynchronous)
		1401	exticmd packet. Exti commands are processed by the server as soon as they
		1402	are received, i.e. out of order w.r.t. other commands. The first argument
		1403	is a client socket. Exti commands can be received anytime, even before
		1404	log-in.
		1405
		1406	If the callback returns something, it is sent back as if reply was being
		1407	called.
		1408
835	=cut	1409	=cut
836		1410
837	sub register_extcmd {	1411	sub register_extcmd {
838	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
839		1413
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1414	$EXTCMD{$name} = $cb;
844	}	1415	}
		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
845		1424
846	cf::player->attach (	1425	cf::player->attach (
847	on_command => sub {	1426	on_unknown_command => sub {
848	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
849		1428
850	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
851	or return;	1430	or return;
852		1431
…		…
857	cf::override;	1436	cf::override;
858	},	1437	},
859	on_extcmd => sub {	1438	on_extcmd => sub {
860	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
861		1440
862	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
863		1442
864	if (ref $msg) {	1443	if (ref $msg) {
		1444	my ($type, $reply, @payload) =
		1445	"ARRAY" eq ref $msg
		1446	? @$msg
		1447	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1448
		1449	my @reply;
		1450
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
867	$pl->ext_reply ($msg->{msgid}, %reply);
868	}
869	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
870	} else {	1458	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
872	}	1460	}
873		1461
874	cf::override;	1462	cf::override;
875	},	1463	},
876	);	1464	);
877		1465
878	sub register {	1466	# "readahead" all extensions
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	1467	sub cache_extensions {
885	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
886		1469
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
888	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
889	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892
893	warn "loading '$path' into '$pkg'\n";
894
895	open my $fh, "<:utf8", $path
896	or die "$path: $!";
897
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }
927
928	# remove commands
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}	1473	}
937	}	1474	};
938		1475
939	# remove extcmds	1476	$grp
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	1477	}
953		1478
954	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
955	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	1486	next unless -r $path;
957	eval {	1487
958	load_extension $ext;	1488	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1489	my $base = $1;
		1490	my $pkg = $1;
		1491	$pkg =~ s/[^[:word:]]/_/g;
		1492	$pkg = "ext::$pkg";
		1493
		1494	open my $fh, "<:utf8", $path
		1495	or die "$path: $!";
		1496
		1497	my $source = do { local $/; <$fh> };
		1498
		1499	my %ext = (
		1500	path => $path,
		1501	base => $base,
		1502	pkg => $pkg,
		1503	);
		1504
		1505	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1506	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1507
		1508	$ext{source} =
		1509	"package $pkg; use common::sense;\n"
		1510	. "#line 1 \"$path\"\n{\n"
		1511	. $source
		1512	. "\n};\n1";
		1513
		1514	$todo{$base} = \%ext;
		1515	}
		1516
		1517	my $pass = 0;
		1518	my %done;
		1519	while (%todo) {
		1520	my $progress;
		1521
		1522	++$pass;
		1523
		1524	ext:
		1525	while (my ($k, $v) = each %todo) {
		1526	for (split /,\s*/, $v->{meta}{depends}) {
		1527	next ext
		1528	unless exists $done{$_};
		1529	}
		1530
		1531	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1532
		1533	my $active = eval $v->{source};
		1534
		1535	if (length $@) {
		1536	error "$v->{path}: $@\n";
		1537
		1538	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1539	if exists $v->{meta}{mandatory};
		1540
		1541	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1542	delete $todo{$k};
		1543	} else {
		1544	$done{$k} = delete $todo{$k};
		1545	push @EXTS, $v->{pkg};
		1546	$progress = 1;
		1547
		1548	info "$v->{base}: extension inactive.\n"
		1549	unless $active;
		1550	}
959	1	1551	}
960	} or warn "$ext not loaded: $@";	1552
		1553	unless ($progress) {
		1554	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1555
		1556	while (my ($k, $v) = each %todo) {
		1557	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1558	if exists $v->{meta}{mandatory};
		1559	}
		1560
		1561	last;
		1562	}
		1563	}
961	}	1564	};
962	}	1565	}
963		1566
964	#############################################################################	1567	#############################################################################
965	# load/save/clean perl data associated with a map
966		1568
967	*cf::mapsupport::on_clean = sub {	1569	=back
		1570
		1571	=head2 CORE EXTENSIONS
		1572
		1573	Functions and methods that extend core deliantra objects.
		1574
		1575	=cut
		1576
		1577	package cf::player;
		1578
		1579	use Coro::AIO;
		1580
		1581	=head3 cf::player
		1582
		1583	=over 4
		1584
		1585	=item cf::player::num_playing
		1586
		1587	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1588
		1589	=cut
		1590
		1591	sub num_playing {
		1592	scalar grep
		1593	$_->ob->map
		1594	&& !$_->hidden
		1595	&& !$_->ob->flag (cf::FLAG_WIZ),
		1596	cf::player::list
		1597	}
		1598
		1599	=item cf::player::find $login
		1600
		1601	Returns the given player object, loading it if necessary (might block).
		1602
		1603	=cut
		1604
		1605	sub playerdir($) {
		1606	"$PLAYERDIR/"
		1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1608	}
		1609
		1610	sub path($) {
		1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1612
		1613	(playerdir $login) . "/playerdata"
		1614	}
		1615
		1616	sub find_active($) {
		1617	$cf::PLAYER{$_[0]}
		1618	and $cf::PLAYER{$_[0]}->active
		1619	and $cf::PLAYER{$_[0]}
		1620	}
		1621
		1622	sub exists($) {
968	my ($map) = @_;	1623	my ($login) = @_;
969		1624
970	my $path = $map->tmpname;	1625	$cf::PLAYER{$login}
971	defined $path or return;	1626	or !aio_stat path $login
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}	1627	}
984		1628
985	# TODO: compatibility cruft, remove when no longer needed	1629	sub find($) {
		1630	return $cf::PLAYER{$_[0]} || do {
		1631	my $login = $_[0];
		1632
		1633	my $guard = cf::lock_acquire "user_find:$login";
		1634
		1635	$cf::PLAYER{$_[0]} || do {
		1636	# rename old playerfiles to new ones
		1637	#TODO: remove when no longer required
		1638	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1639	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1640	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1641	aio_unlink +(playerdir $login) . "/$login.pl";
		1642
		1643	my $f = new_from_file cf::object::thawer path $login
		1644	or return;
		1645
		1646	my $pl = cf::player::load_pl $f
		1647	or return;
		1648
		1649	local $cf::PLAYER_LOADING{$login} = $pl;
		1650	$f->resolve_delayed_derefs;
		1651	$cf::PLAYER{$login} = $pl
		1652	}
		1653	}
		1654	}
		1655
986	cf::player->attach (	1656	cf::player->attach (
987	on_load => sub {	1657	on_load => sub {
988	my ($pl, $path) = @_;	1658	my ($pl, $path) = @_;
989		1659
990	for my $o (all_objects $pl->ob) {	1660	# restore slots saved in save, below
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1661	my $slots = delete $pl->{_slots};
992	$o->set_ob_key_value ("_perl_data");
993		1662
994	%$o = %{ Storable::thaw pack "H*", $value };	1663	$pl->ob->current_weapon ($slots->[0]);
995	}	1664	$pl->combat_ob ($slots->[1]);
996	}	1665	$pl->ranged_ob ($slots->[2]);
997	},	1666	},
998	);	1667	);
999		1668
1000	#############################################################################	1669	sub save($) {
		1670	my ($pl) = @_;
1001		1671
1002	=head2 CORE EXTENSIONS	1672	return if $pl->{deny_save};
1003		1673
1004	Functions and methods that extend core crossfire objects.	1674	my $path = path $pl;
		1675	my $guard = cf::lock_acquire "user_save:$path";
1005		1676
1006	=head3 cf::player	1677	return if $pl->{deny_save};
		1678
		1679	aio_mkdir playerdir $pl, 0770;
		1680	$pl->{last_save} = $cf::RUNTIME;
		1681
		1682	cf::get_slot 0.01;
		1683
		1684	# save slots, to be restored later
		1685	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1686
		1687	$pl->save_pl ($path);
		1688	cf::cede_to_tick;
		1689	}
		1690
		1691	sub new($) {
		1692	my ($login) = @_;
		1693
		1694	my $self = create;
		1695
		1696	$self->ob->name ($login);
		1697	$self->{deny_save} = 1;
		1698
		1699	$cf::PLAYER{$login} = $self;
		1700
		1701	$self
		1702	}
		1703
		1704	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1705
		1706	=cut
		1707
		1708	sub send_msg {
		1709	my $ns = shift->ns
		1710	or return;
		1711	$ns->send_msg (@_);
		1712	}
		1713
		1714	=item $pl->quit_character
		1715
		1716	Nukes the player without looking back. If logged in, the connection will
		1717	be destroyed. May block for a long time.
		1718
		1719	=cut
		1720
		1721	sub quit_character {
		1722	my ($pl) = @_;
		1723
		1724	my $name = $pl->ob->name;
		1725
		1726	$pl->{deny_save} = 1;
		1727	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1728
		1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
		1736	$pl->ns->destroy if $pl->ns;
		1737
		1738	my $path = playerdir $pl;
		1739	my $temp = "$path~$cf::RUNTIME~deleting~";
		1740	aio_rename $path, $temp;
		1741	delete $cf::PLAYER{$pl->ob->name};
		1742	$pl->destroy;
		1743
		1744	my $prefix = qr<^~\Q$name\E/>;
		1745
		1746	# nuke player maps
		1747	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1748
		1749	IO::AIO::aio_rmtree $temp;
		1750	}
		1751
		1752	=item $pl->kick
		1753
		1754	Kicks a player out of the game. This destroys the connection.
		1755
		1756	=cut
		1757
		1758	sub kick {
		1759	my ($pl, $kicker) = @_;
		1760
		1761	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1762	$pl->killer ("kicked");
		1763	$pl->ns->destroy;
		1764	}
		1765
		1766	=item cf::player::list_logins
		1767
		1768	Returns am arrayref of all valid playernames in the system, can take a
		1769	while and may block, so not sync_job-capable, ever.
		1770
		1771	=cut
		1772
		1773	sub list_logins {
		1774	my $dirs = aio_readdir $PLAYERDIR
		1775	or return [];
		1776
		1777	my @logins;
		1778
		1779	for my $login (@$dirs) {
		1780	my $path = path $login;
		1781
		1782	# a .pst is a dead give-away for a valid player
		1783	# if no pst file found, open and chekc for blocked users
		1784	if (aio_stat "$path.pst") {
		1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1786	aio_read $fh, 0, 512, my $buf, 0 or next;
		1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
		1789
		1790	utf8::decode $login;
		1791	push @logins, $login;
		1792	}
		1793
		1794	\@logins
		1795	}
		1796
		1797	=item $player->maps
		1798
		1799	=item cf::player::maps $login
		1800
		1801	Returns an arrayref of map paths that are private for this
		1802	player. May block.
		1803
		1804	=cut
		1805
		1806	sub maps($) {
		1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
		1810
		1811	my $files = aio_readdir playerdir $pl
		1812	or return;
		1813
		1814	my @paths;
		1815
		1816	for (@$files) {
		1817	utf8::decode $_;
		1818	next if /\.(?:pl|pst)$/;
		1819	next unless /^$PATH_SEP/o;
		1820
		1821	push @paths, cf::map::normalise "~$pl/$_";
		1822	}
		1823
		1824	\@paths
		1825	}
		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
		1831	=item $player->ext_reply ($msgid, @msg)
		1832
		1833	Sends an ext reply to the player.
		1834
		1835	=cut
		1836
		1837	sub ext_reply($$@) {
		1838	my ($self, $id, @msg) = @_;
		1839
		1840	$self->ns->ext_reply ($id, @msg)
		1841	}
		1842
		1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		1850	my ($self, $type, @msg) = @_;
		1851
		1852	$self->ns->ext_msg ($type, @msg);
		1853	}
		1854
		1855	=head3 cf::region
1007		1856
1008	=over 4	1857	=over 4
1009		1858
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut	1859	=cut
1015		1860
1016	sub cf::player::exists($) {	1861	package cf::region;
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020		1862
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1863	=item cf::region::find_by_path $path
1022		1864
1023	Sends an ext reply to the player.	1865	Tries to decuce the likely region for a map knowing only its path.
1024		1866
1025	=cut	1867	=cut
1026		1868
1027	sub cf::player::ext_reply($$$%) {	1869	sub find_by_path($) {
1028	my ($self, $id, %msg) = @_;	1870	my ($path) = @_;
1029		1871
1030	$msg{msgid} = $id;	1872	$path =~ s/^~[^\/]*//; # skip ~login
1031		1873
1032	$self->send ("ext " . to_json \%msg);	1874	my ($match, $specificity);
		1875
		1876	for my $region (list) {
		1877	if ($region->{match} && $path =~ $region->{match}) {
		1878	($match, $specificity) = ($region, $region->specificity)
		1879	if $region->specificity > $specificity;
		1880	}
		1881	}
		1882
		1883	$match
1033	}	1884	}
1034		1885
1035	=back	1886	=back
1036
1037		1887
1038	=head3 cf::map	1888	=head3 cf::map
1039		1889
1040	=over 4	1890	=over 4
1041		1891
…		…
1044	package cf::map;	1894	package cf::map;
1045		1895
1046	use Fcntl;	1896	use Fcntl;
1047	use Coro::AIO;	1897	use Coro::AIO;
1048		1898
		1899	use overload
		1900	'""' => \&as_string,
		1901	fallback => 1;
		1902
1049	our $MAX_RESET = 7200;	1903	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1904	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1905
1054	sub generate_random_map {	1906	sub generate_random_map {
		1907	my ($self, $rmp) = @_;
		1908
		1909	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1910
		1911	$self->_create_random_map ($rmp);
		1912	}
		1913
		1914	=item cf::map->register ($regex, $prio)
		1915
		1916	Register a handler for the map path matching the given regex at the
		1917	givne priority (higher is better, built-in handlers have priority 0, the
		1918	default).
		1919
		1920	=cut
		1921
		1922	sub register {
		1923	my (undef, $regex, $prio) = @_;
		1924	my $pkg = caller;
		1925
		1926	push @{"$pkg\::ISA"}, __PACKAGE__;
		1927
		1928	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1929	}
		1930
		1931	# also paths starting with '/'
		1932	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1933
		1934	sub thawer_merge {
		1935	my ($self, $merge) = @_;
		1936
		1937	# we have to keep some variables in memory intact
		1938	local $self->{path};
		1939	local $self->{load_path};
		1940
		1941	$self->SUPER::thawer_merge ($merge);
		1942	}
		1943
		1944	sub normalise {
1055	my ($path, $rmp) = @_;	1945	my ($path, $base) = @_;
1056		1946
1057	# mit "rum" bekleckern, nicht	1947	$path = "$path"; # make sure it's a string
1058	cf::map::_create_random_map	1948
		1949	$path =~ s/\.map$//;
		1950
		1951	# map plan:
		1952	#
		1953	# /! non-realised random map exit (special hack!)
		1954	# {... are special paths that are not being touched
		1955	# ?xxx/... are special absolute paths
		1956	# ?random/... random maps
		1957	# /... normal maps
		1958	# ~user/... per-player map of a specific user
		1959
		1960	$path =~ s/$PATH_SEP/\//go;
		1961
		1962	# treat it as relative path if it starts with
		1963	# something that looks reasonable
		1964	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1965	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1966
		1967	$base =~ s{[^/]+/?$}{};
		1968	$path = "$base/$path";
		1969	}
		1970
		1971	for ($path) {
		1972	redo if s{/\.?/}{/};
		1973	redo if s{/[^/]+/\.\./}{/};
		1974	}
		1975
1059	$path,	1976	$path
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})
1071	}	1977	}
1072		1978
1073	# and all this just because we cannot iterate over	1979	sub new_from_path {
1074	# all maps in C++...	1980	my (undef, $path, $base) = @_;
1075	sub change_all_map_light {	1981
		1982	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1983
		1984	$path = normalise $path, $base;
		1985
		1986	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1987	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1988	my $self = bless cf::map::new, $pkg;
		1989	$self->{path} = $path; $self->path ($path);
		1990	$self->init; # pass $1 etc.
		1991	return $self;
		1992	}
		1993	}
		1994
		1995	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1996	()
		1997	}
		1998
		1999	# may re-bless or do other evil things
		2000	sub init {
1076	my ($change) = @_;	2001	my ($self) = @_;
1077		2002
1078	$_->change_map_light ($change) for values %cf::MAP;	2003	$self
1079	}	2004	}
1080		2005
		2006	sub as_string {
		2007	my ($self) = @_;
		2008
		2009	"$self->{path}"
		2010	}
		2011
		2012	# the displayed name, this is a one way mapping
		2013	sub visible_name {
		2014	&as_string
		2015	}
		2016
		2017	# the original (read-only) location
		2018	sub load_path {
		2019	my ($self) = @_;
		2020
		2021	"$MAPDIR/$self->{path}.map"
		2022	}
		2023
		2024	# the temporary/swap location
		2025	sub save_path {
		2026	my ($self) = @_;
		2027
		2028	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2029	"$TMPDIR/$path.map"
		2030	}
		2031
		2032	# the unique path, undef == no special unique path
		2033	sub uniq_path {
		2034	my ($self) = @_;
		2035
		2036	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2037	"$UNIQUEDIR/$path"
		2038	}
		2039
		2040	sub decay_objects {
		2041	my ($self) = @_;
		2042
		2043	return if $self->{deny_reset};
		2044
		2045	$self->do_decay_objects;
		2046	}
		2047
		2048	sub unlink_save {
		2049	my ($self) = @_;
		2050
		2051	utf8::encode (my $save = $self->save_path);
		2052	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2053	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2054	}
		2055
1081	sub try_load_header($) {	2056	sub load_header_from($) {
1082	my ($path) = @_;	2057	my ($self, $path) = @_;
1083		2058
1084	utf8::encode $path;	2059	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	2060	my $f = new_from_file cf::object::thawer $path
1086	or return;	2061	or return;
1087		2062
1088	my $map = cf::map::new	2063	$self->_load_header ($f)
1089	or return;	2064	or return;
1090		2065
1091	$map->load_header ($path)	2066	local $MAP_LOADING{$self->{path}} = $self;
		2067	$f->resolve_delayed_derefs;
		2068
		2069	$self->{load_path} = $path;
		2070
		2071	1
		2072	}
		2073
		2074	sub load_header_orig {
		2075	my ($self) = @_;
		2076
		2077	$self->load_header_from ($self->load_path)
		2078	}
		2079
		2080	sub load_header_temp {
		2081	my ($self) = @_;
		2082
		2083	$self->load_header_from ($self->save_path)
		2084	}
		2085
		2086	sub prepare_temp {
		2087	my ($self) = @_;
		2088
		2089	$self->last_access ((delete $self->{last_access})
		2090	|| $cf::RUNTIME); #d#
		2091	# safety
		2092	$self->{instantiate_time} = $cf::RUNTIME
		2093	if $self->{instantiate_time} > $cf::RUNTIME;
		2094	}
		2095
		2096	sub prepare_orig {
		2097	my ($self) = @_;
		2098
		2099	$self->{load_original} = 1;
		2100	$self->{instantiate_time} = $cf::RUNTIME;
		2101	$self->last_access ($cf::RUNTIME);
		2102	$self->instantiate;
		2103	}
		2104
		2105	sub load_header {
		2106	my ($self) = @_;
		2107
		2108	if ($self->load_header_temp) {
		2109	$self->prepare_temp;
		2110	} else {
		2111	$self->load_header_orig
1092	or return;	2112	or return;
		2113	$self->prepare_orig;
		2114	}
1093		2115
1094	$map->{load_path} = $path;	2116	$self->{deny_reset} = 1
1095	use Data::Dumper; warn Dumper $map;#d#	2117	if $self->no_reset;
1096		2118
1097	$map	2119	$self->default_region (cf::region::find_by_path $self->{path})
1098	}	2120	unless $self->default_region;
1099		2121
		2122	1
		2123	}
		2124
		2125	sub find;
1100	sub find_map {	2126	sub find {
1101	my ($path, $origin) = @_;	2127	my ($path, $origin) = @_;
1102		2128
1103	#warn "find_map<$path,$origin>\n";#d#	2129	cf::cede_to_tick;
1104		2130
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	2131	$path = normalise $path, $origin && $origin->path;
1106	my $key = $path->as_string;
1107		2132
		2133	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2134	my $guard2 = cf::lock_acquire "map_find:$path";
		2135
1108	$cf::MAP{$key} || do {	2136	$cf::MAP{$path} || do {
1109	# do it the slow way	2137	my $map = new_from_path cf::map $path
1110	my $map = try_load_header $path->save_path;
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	2138	or return;
1124		2139
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	2140	$map->{last_save} = $cf::RUNTIME;
1135		2141
1136	$map->reset if $map->should_reset;	2142	$map->load_header
		2143	or return;
1137		2144
		2145	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2146	# doing this can freeze the server in a sync job, obviously
		2147	#$cf::WAIT_FOR_TICK->wait;
		2148	undef $guard2;
		2149	undef $guard1;
		2150	$map->reset;
		2151	return find $path;
		2152	}
		2153
1138	$cf::MAP{$key} = $map	2154	$cf::MAP{$path} = $map
1139	}	2155	}
1140	}	2156	}
		2157
		2158	sub pre_load { }
		2159	#sub post_load { } # XS
1141		2160
1142	sub load {	2161	sub load {
1143	my ($self) = @_;	2162	my ($self) = @_;
1144		2163
1145	return if $self->in_memory != cf::MAP_SWAPPED;	2164	local $self->{deny_reset} = 1; # loading can take a long time
1146
1147	$self->in_memory (cf::MAP_LOADING);
1148		2165
1149	my $path = $self->{path};	2166	my $path = $self->{path};
1150		2167
		2168	{
		2169	my $guard = cf::lock_acquire "map_data:$path";
		2170
		2171	return unless $self->valid;
		2172	return unless $self->in_memory == cf::MAP_SWAPPED;
		2173
		2174	$self->in_memory (cf::MAP_LOADING);
		2175
1151	$self->alloc;	2176	$self->alloc;
1152	$self->load_objects ($self->{load_path}, 1)	2177
		2178	$self->pre_load;
		2179	cf::cede_to_tick;
		2180
		2181	my $f = new_from_file cf::object::thawer $self->{load_path};
		2182	$f->skip_block;
		2183	$self->_load_objects ($f)
1153	or return;	2184	or return;
1154		2185
		2186	$self->post_load_original
		2187	if delete $self->{load_original};
		2188
1155	if (my $uniq = $path->uniq_path) {	2189	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	2190	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	2191	unless (aio_stat $uniq) {
		2192	if (my $f = new_from_file cf::object::thawer $uniq) {
1158	$self->clear_unique_items;	2193	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	2194	$self->_load_objects ($f);
		2195	$f->resolve_delayed_derefs;
		2196	}
1160	}	2197	}
1161	}	2198	}
1162		2199
		2200	$f->resolve_delayed_derefs;
		2201
		2202	cf::cede_to_tick;
1163	# now do the right thing for maps	2203	# now do the right thing for maps
1164	$self->link_multipart_objects;	2204	$self->link_multipart_objects;
1165
1166	if ($self->{path}->is_style_map) {
1167	$self->{deny_save} = 1;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;
1173	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	2205	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	2206	unless $self->difficulty;
		2207	cf::cede_to_tick;
		2208
		2209	unless ($self->{deny_activate}) {
		2210	$self->decay_objects;
		2211	$self->fix_auto_apply;
		2212	$self->update_buttons;
		2213	cf::cede_to_tick;
1176	$self->activate;	2214	$self->activate;
1177	}	2215	}
1178		2216
		2217	$self->{last_save} = $cf::RUNTIME;
		2218	$self->last_access ($cf::RUNTIME);
		2219
1179	$self->in_memory (cf::MAP_IN_MEMORY);	2220	$self->in_memory (cf::MAP_ACTIVE);
1180	}	2221	}
1181		2222
1182	sub load_map_sync {	2223	$self->post_load;
		2224
		2225	1
		2226	}
		2227
		2228	# customize the map for a given player, i.e.
		2229	# return the _real_ map. used by e.g. per-player
		2230	# maps to change the path to ~playername/mappath
		2231	sub customise_for {
		2232	my ($self, $ob) = @_;
		2233
		2234	return find "~" . $ob->name . "/" . $self->{path}
		2235	if $self->per_player;
		2236
		2237	# return find "?party/" . $ob->name . "/" . $self->{path}
		2238	# if $self->per_party;
		2239
		2240	$self
		2241	}
		2242
		2243	# find and load all maps in the 3x3 area around a map
		2244	sub load_neighbours {
		2245	my ($map) = @_;
		2246
		2247	my @neigh; # diagonal neighbours
		2248
		2249	for (0 .. 3) {
		2250	my $neigh = $map->tile_path ($_)
		2251	or next;
		2252	$neigh = find $neigh, $map
		2253	or next;
		2254	$neigh->load;
		2255
		2256	# now find the diagonal neighbours
		2257	push @neigh,
		2258	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2259	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2260	}
		2261
		2262	for (grep defined $_->[0], @neigh) {
		2263	my ($path, $origin) = @$_;
		2264	my $neigh = find $path, $origin
		2265	or next;
		2266	$neigh->load;
		2267	}
		2268	}
		2269
		2270	sub find_sync {
1183	my ($path, $origin) = @_;	2271	my ($path, $origin) = @_;
1184		2272
1185	#warn "load_map_sync<$path, $origin>\n";#d#	2273	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2274	if $Coro::current == $Coro::main;
1186		2275
1187	cf::sync_job {	2276	find $path, $origin
1188	my $map = cf::map::find_map $path, $origin	2277	}
1189	or return;	2278
		2279	sub do_load_sync {
		2280	my ($map) = @_;
		2281
		2282	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2283	if $Coro::current == $Coro::main;
		2284
1190	$map->load;	2285	$map->load;
1191	$map	2286	}
		2287
		2288	our %MAP_PREFETCH;
		2289	our $MAP_PREFETCHER = undef;
		2290
		2291	sub find_async {
		2292	my ($path, $origin, $load) = @_;
		2293
		2294	$path = normalise $path, $origin && $origin->{path};
		2295
		2296	if (my $map = $cf::MAP{$path}) {
		2297	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2298	}
		2299
		2300	$MAP_PREFETCH{$path} |= $load;
		2301
		2302	$MAP_PREFETCHER ||= cf::async {
		2303	$Coro::current->{desc} = "map prefetcher";
		2304
		2305	while (%MAP_PREFETCH) {
		2306	while (my ($k, $v) = each %MAP_PREFETCH) {
		2307	if (my $map = find $k) {
		2308	$map->load if $v;
		2309	}
		2310
		2311	delete $MAP_PREFETCH{$k};
		2312	}
		2313	}
		2314	undef $MAP_PREFETCHER;
		2315	};
		2316	$MAP_PREFETCHER->prio (6);
		2317
		2318	()
		2319	}
		2320
		2321	# common code, used by both ->save and ->swapout
		2322	sub _save {
		2323	my ($self) = @_;
		2324
		2325	$self->{last_save} = $cf::RUNTIME;
		2326
		2327	return unless $self->dirty;
		2328
		2329	my $save = $self->save_path; utf8::encode $save;
		2330	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2331
		2332	$self->{load_path} = $save;
		2333
		2334	return if $self->{deny_save};
		2335
		2336	local $self->{last_access} = $self->last_access;#d#
		2337
		2338	cf::async {
		2339	$Coro::current->{desc} = "map player save";
		2340	$_->contr->save for $self->players;
		2341	};
		2342
		2343	cf::get_slot 0.02;
		2344
		2345	if ($uniq) {
		2346	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2347	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2348	} else {
		2349	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1192	}	2350	}
1193	}	2351	}
1194		2352
1195	sub save {	2353	sub save {
1196	my ($self) = @_;	2354	my ($self) = @_;
1197		2355
1198	my $save = $self->{path}->save_path; utf8::encode $save;	2356	my $lock = cf::lock_acquire "map_data:$self->{path}";
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		2357
1201	$self->{last_save} = $cf::RUNTIME;	2358	$self->_save;
1202
1203	return unless $self->dirty;
1204
1205	$self->{load_path} = $save;
1206
1207	return if $self->{deny_save};
1208
1209	warn "saving map ", $self->path;
1210
1211	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}
1217	}	2359	}
1218		2360
1219	sub swap_out {	2361	sub swap_out {
1220	my ($self) = @_;	2362	my ($self) = @_;
1221		2363
		2364	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2365
		2366	return if $self->in_memory != cf::MAP_ACTIVE;
		2367	return if $self->{deny_save};
1222	return if $self->players;	2368	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};
1225		2369
		2370	# first deactivate the map and "unlink" it from the core
		2371	$self->deactivate;
		2372	$_->clear_links_to ($self) for values %cf::MAP;
		2373	$self->in_memory (cf::MAP_SWAPPED);
		2374
		2375	# then atomically save
1226	$self->save;	2376	$self->_save;
		2377
		2378	# then free the map
1227	$self->clear;	2379	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	2380	}
		2381
		2382	sub reset_at {
		2383	my ($self) = @_;
		2384
		2385	# TODO: safety, remove and allow resettable per-player maps
		2386	return 1e99 if $self->{deny_reset};
		2387
		2388	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2389	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2390
		2391	$time + $to
1229	}	2392	}
1230		2393
1231	sub should_reset {	2394	sub should_reset {
1232	my ($map) = @_;	2395	my ($self) = @_;
1233		2396
1234	# TODO: safety, remove and allow resettable per-player maps	2397	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	2398	}
1243		2399
1244	sub reset {	2400	sub reset {
1245	my ($self) = @_;	2401	my ($self) = @_;
1246		2402
		2403	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2404
1247	return if $self->players;	2405	return if $self->players;
1248	return if $self->{path}{user_rel};#d#
1249		2406
1250	warn "resetting map ", $self->path;#d#	2407	cf::trace "resetting map ", $self->path, "\n";
1251		2408
1252	utf8::encode (my $save = $self->{path}->save_path);	2409	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255		2410
		2411	# need to save uniques path
		2412	unless ($self->{deny_save}) {
		2413	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2414
		2415	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2416	if $uniq;
		2417	}
		2418
		2419	delete $cf::MAP{$self->path};
		2420
		2421	$self->deactivate;
1256	$_->clear_links_to ($self) for values %cf::MAP;	2422	$_->clear_links_to ($self) for values %cf::MAP;
1257
1258	$self->clear;	2423	$self->clear;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}
1262		2424
1263	sub customise_for {	2425	$self->unlink_save;
1264	my ($map, $ob) = @_;	2426	$self->destroy;
		2427	}
1265		2428
1266	if ($map->per_player) {	2429	my $nuke_counter = "aaaa";
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2430
		2431	sub nuke {
		2432	my ($self) = @_;
		2433
1268	}	2434	{
		2435	my $lock = cf::lock_acquire "map_data:$self->{path}";
1269		2436
1270	$map	2437	delete $cf::MAP{$self->path};
1271	}
1272		2438
1273	sub emergency_save {	2439	$self->unlink_save;
1274	local $cf::FREEZE = 1;
1275		2440
1276	warn "enter emergency map save\n";	2441	bless $self, "cf::map::wrap";
		2442	delete $self->{deny_reset};
		2443	$self->{deny_save} = 1;
		2444	$self->reset_timeout (1);
		2445	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1277		2446
1278	cf::sync_job {	2447	$cf::MAP{$self->path} = $self;
1279	warn "begin emergency map save\n";
1280	$_->save for values %cf::MAP;
1281	};	2448	}
1282		2449
1283	warn "end emergency map save\n";	2450	$self->reset; # polite request, might not happen
		2451	}
		2452
		2453	=item $maps = cf::map::tmp_maps
		2454
		2455	Returns an arrayref with all map paths of currently instantiated and saved
		2456	maps. May block.
		2457
		2458	=cut
		2459
		2460	sub tmp_maps() {
		2461	[
		2462	map {
		2463	utf8::decode $_;
		2464	/\.map$/
		2465	? normalise $_
		2466	: ()
		2467	} @{ aio_readdir $TMPDIR or [] }
		2468	]
		2469	}
		2470
		2471	=item $maps = cf::map::random_maps
		2472
		2473	Returns an arrayref with all map paths of currently instantiated and saved
		2474	random maps. May block.
		2475
		2476	=cut
		2477
		2478	sub random_maps() {
		2479	[
		2480	map {
		2481	utf8::decode $_;
		2482	/\.map$/
		2483	? normalise "?random/$_"
		2484	: ()
		2485	} @{ aio_readdir $RANDOMDIR or [] }
		2486	]
		2487	}
		2488
		2489	=item cf::map::unique_maps
		2490
		2491	Returns an arrayref of paths of all shared maps that have
		2492	instantiated unique items. May block.
		2493
		2494	=cut
		2495
		2496	sub unique_maps() {
		2497	[
		2498	map {
		2499	utf8::decode $_;
		2500	s/\.map$//; # TODO future compatibility hack
		2501	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2502	? ()
		2503	: normalise $_
		2504	} @{ aio_readdir $UNIQUEDIR or [] }
		2505	]
		2506	}
		2507
		2508	=item cf::map::static_maps
		2509
		2510	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2511	file in the shared directory excluding F</styles> and F</editor>). May
		2512	block.
		2513
		2514	=cut
		2515
		2516	sub static_maps() {
		2517	my @dirs = "";
		2518	my @maps;
		2519
		2520	while (@dirs) {
		2521	my $dir = shift @dirs;
		2522
		2523	next if $dir eq "/styles" || $dir eq "/editor";
		2524
		2525	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2526	or return;
		2527
		2528	for (@$files) {
		2529	s/\.map$// or next;
		2530	utf8::decode $_;
		2531	push @maps, "$dir/$_";
		2532	}
		2533
		2534	push @dirs, map "$dir/$_", @$dirs;
		2535	}
		2536
		2537	\@maps
		2538	}
		2539
		2540	=back
		2541
		2542	=head3 cf::object
		2543
		2544	=cut
		2545
		2546	package cf::object;
		2547
		2548	=over 4
		2549
		2550	=item $ob->inv_recursive
		2551
		2552	Returns the inventory of the object I<and> their inventories, recursively,
		2553	but I<not> the object itself.
		2554
		2555	=cut
		2556
		2557	sub inv_recursive_;
		2558	sub inv_recursive_ {
		2559	map { $_, inv_recursive_ $_->inv } @_
		2560	}
		2561
		2562	sub inv_recursive {
		2563	inv_recursive_ inv $_[0]
		2564	}
		2565
		2566	=item $ref = $ob->ref
		2567
		2568	Creates and returns a persistent reference to an object that can be stored as a string.
		2569
		2570	=item $ob = cf::object::deref ($refstring)
		2571
		2572	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2573	even if the object actually exists. May block.
		2574
		2575	=cut
		2576
		2577	sub deref {
		2578	my ($ref) = @_;
		2579
		2580	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2581	my ($uuid, $name) = ($1, $2);
		2582	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2583	or return;
		2584	$pl->ob->uuid eq $uuid
		2585	or return;
		2586
		2587	$pl->ob
		2588	} else {
		2589	warn "$ref: cannot resolve object reference\n";
		2590	undef
		2591	}
1284	}	2592	}
1285		2593
1286	package cf;	2594	package cf;
1287		2595
1288	=back	2596	=back
1289
1290		2597
1291	=head3 cf::object::player	2598	=head3 cf::object::player
1292		2599
1293	=over 4	2600	=over 4
1294		2601
…		…
1297	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2604	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1298	can be C<undef>. Does the right thing when the player is currently in a	2605	can be C<undef>. Does the right thing when the player is currently in a
1299	dialogue with the given NPC character.	2606	dialogue with the given NPC character.
1300		2607
1301	=cut	2608	=cut
		2609
		2610	our $SAY_CHANNEL = {
		2611	id => "say",
		2612	title => "Map",
		2613	reply => "say ",
		2614	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2615	};
		2616
		2617	our $CHAT_CHANNEL = {
		2618	id => "chat",
		2619	title => "Chat",
		2620	reply => "chat ",
		2621	tooltip => "Player chat and shouts, global to the server.",
		2622	};
1302		2623
1303	# rough implementation of a future "reply" method that works	2624	# rough implementation of a future "reply" method that works
1304	# with dialog boxes.	2625	# with dialog boxes.
1305	#TODO: the first argument must go, split into a $npc->reply_to ( method	2626	#TODO: the first argument must go, split into a $npc->reply_to ( method
1306	sub cf::object::player::reply($$$;$) {	2627	sub cf::object::player::reply($$$;$) {
…		…
1308		2629
1309	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2630	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1310		2631
1311	if ($self->{record_replies}) {	2632	if ($self->{record_replies}) {
1312	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2633	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2634
1313	} else {	2635	} else {
		2636	my $pl = $self->contr;
		2637
		2638	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2639	my $dialog = $pl->{npc_dialog};
		2640	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2641
		2642	} else {
1314	$msg = $npc->name . " says: $msg" if $npc;	2643	$msg = $npc->name . " says: $msg" if $npc;
1315	$self->message ($msg, $flags);	2644	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2645	}
1316	}	2646	}
		2647	}
		2648
		2649	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2650
		2651	=cut
		2652
		2653	sub cf::object::send_msg {
		2654	my $pl = shift->contr
		2655	or return;
		2656	$pl->send_msg (@_);
1317	}	2657	}
1318		2658
1319	=item $player_object->may ("access")	2659	=item $player_object->may ("access")
1320		2660
1321	Returns wether the given player is authorized to access resource "access"	2661	Returns wether the given player is authorized to access resource "access"
…		…
1330	(ref $cf::CFG{"may_$access"}	2670	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2671	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	2672	: $cf::CFG{"may_$access"})
1333	}	2673	}
1334		2674
		2675	=item $player_object->enter_link
		2676
		2677	Freezes the player and moves him/her to a special map (C<{link}>).
		2678
		2679	The player should be reasonably safe there for short amounts of time (e.g.
		2680	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2681	though, as the player cannot control the character while it is on the link
		2682	map.
		2683
		2684	Will never block.
		2685
		2686	=item $player_object->leave_link ($map, $x, $y)
		2687
		2688	Moves the player out of the special C<{link}> map onto the specified
		2689	map. If the map is not valid (or omitted), the player will be moved back
		2690	to the location he/she was before the call to C<enter_link>, or, if that
		2691	fails, to the emergency map position.
		2692
		2693	Might block.
		2694
		2695	=cut
		2696
		2697	sub link_map {
		2698	unless ($LINK_MAP) {
		2699	$LINK_MAP = cf::map::find "{link}"
		2700	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2701	$LINK_MAP->load;
		2702	}
		2703
		2704	$LINK_MAP
		2705	}
		2706
1335	sub cf::object::player::enter_link {	2707	sub cf::object::player::enter_link {
1336	my ($self) = @_;	2708	my ($self) = @_;
1337		2709
1338	return if $self->map == $LINK_MAP;
1339
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;
1342
1343	$self->enter_map ($LINK_MAP, 20, 20);
1344	$self->deactivate_recursive;	2710	$self->deactivate_recursive;
		2711
		2712	++$self->{_link_recursion};
		2713
		2714	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2715
		2716	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2717	if $self->map && $self->map->{path} ne "{link}";
		2718
		2719	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1345	}	2720	}
1346		2721
1347	sub cf::object::player::leave_link {	2722	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	2723	my ($self, $map, $x, $y) = @_;
1349		2724
		2725	return unless $self->contr->active;
		2726
1350	my $link_pos = delete $self->{_link_pos};	2727	my $link_pos = delete $self->{_link_pos};
1351		2728
1352	unless ($map) {	2729	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	2730	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	2731	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	2732	$map = cf::map::find $map;
1358		2733
1359	unless ($map) {	2734	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	2735	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	2736	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	2737	or die "FATAL: cannot load emergency map\n";
1363	}	2738	}
1364	}	2739	}
1365		2740
1366	($x, $y) = (-1, -1)	2741	($x, $y) = (-1, -1)
1367	unless (defined $x) && (defined $y);	2742	unless (defined $x) && (defined $y);
1368		2743
1369	# use -1 or undef as default coordinates, not 0, 0	2744	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	2745	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	2746	if $x <= 0 && $y <= 0;
1372		2747
1373	$map->load;	2748	$map->load;
		2749	$map->load_neighbours;
1374		2750
		2751	return unless $self->contr->active;
		2752
		2753	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2754	if ($self->enter_map ($map, $x, $y)) {
		2755	# entering was successful
		2756	delete $self->{_link_recursion};
		2757	# only activate afterwards, to support waiting in hooks
1375	$self->activate_recursive;	2758	$self->activate_recursive;
1376	$self->enter_map ($map, $x, $y);	2759	}
1377	}
1378		2760
1379	=item $player_object->goto_map ($map, $x, $y)	2761	}
1380		2762
1381	=cut	2763	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1382		2764
		2765	Moves the player to the given map-path and coordinates by first freezing
		2766	her, loading and preparing them map, calling the provided $check callback
		2767	that has to return the map if sucecssful, and then unfreezes the player on
		2768	the new (success) or old (failed) map position. In either case, $done will
		2769	be called at the end of this process.
		2770
		2771	Note that $check will be called with a potentially non-loaded map, so if
		2772	it needs a loaded map it has to call C<< ->load >>.
		2773
		2774	=cut
		2775
		2776	our $GOTOGEN;
		2777
1383	sub cf::object::player::goto_map {	2778	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	2779	my ($self, $path, $x, $y, $check, $done) = @_;
		2780
		2781	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2782	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2783	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2784	($path, $x, $y) = @$EMERGENCY_POSITION;
		2785	}
		2786
		2787	# do generation counting so two concurrent goto's will be executed in-order
		2788	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1385		2789
1386	$self->enter_link;	2790	$self->enter_link;
1387		2791
1388	(Coro::async {	2792	(async {
1389	$path = new cf::path $path;	2793	$Coro::current->{desc} = "player::goto $path $x $y";
1390		2794
1391	my $map = cf::map::find_map $path->as_string;	2795	# *tag paths override both path and x|y
		2796	if ($path =~ /^\*(.*)$/) {
		2797	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2798	my $ob = $obs[rand @obs];
		2799
		2800	# see if we actually can go there
		2801	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2802	$ob = $obs[rand @obs];
		2803	} else {
		2804	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2805	}
		2806	# else put us there anyways for now #d#
		2807
		2808	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2809	} else {
		2810	($path, $x, $y) = (undef, undef, undef);
		2811	}
		2812	}
		2813
		2814	my $map = eval {
		2815	my $map = defined $path ? cf::map::find $path : undef;
		2816
		2817	if ($map) {
1392	$map = $map->customise_for ($self) if $map;	2818	$map = $map->customise_for ($self);
		2819	$map = $check->($map, $x, $y, $self) if $check && $map;
		2820	} else {
		2821	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2822	}
1393		2823
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	2824	$map
		2825	};
1396		2826
		2827	if ($@) {
		2828	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2829	LOG llevError | logBacktrace, Carp::longmess $@;
		2830	}
		2831
		2832	if ($gen == $self->{_goto_generation}) {
		2833	delete $self->{_goto_generation};
1397	$self->leave_link ($map, $x, $y);	2834	$self->leave_link ($map, $x, $y);
		2835	}
		2836
		2837	$done->($self) if $done;
1398	})->prio (1);	2838	})->prio (1);
1399	}	2839	}
1400		2840
1401	=item $player_object->enter_exit ($exit_object)	2841	=item $player_object->enter_exit ($exit_object)
1402		2842
…		…
1404		2844
1405	sub parse_random_map_params {	2845	sub parse_random_map_params {
1406	my ($spec) = @_;	2846	my ($spec) = @_;
1407		2847
1408	my $rmp = { # defaults	2848	my $rmp = { # defaults
1409	xsize => 10,	2849	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	2850	ysize => (cf::rndm 15, 40),
		2851	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2852	#layout => string,
1411	};	2853	};
1412		2854
1413	for (split /\n/, $spec) {	2855	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	2856	my ($k, $v) = split /\s+/, $_, 2;
1415		2857
…		…
1427	# that depends on the exit object	2869	# that depends on the exit object
1428		2870
1429	my $rmp = parse_random_map_params $exit->msg;	2871	my $rmp = parse_random_map_params $exit->msg;
1430		2872
1431	if ($exit->map) {	2873	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	2874	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	2875	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	2876	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	2877	$rmp->{origin_y} = $exit->y;
		2878
		2879	$exit->map->touch;
1436	}	2880	}
1437		2881
1438	$rmp->{random_seed} ||= $exit->random_seed;	2882	$rmp->{random_seed} ||= $exit->random_seed;
1439		2883
1440	my $data = cf::to_json $rmp;	2884	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1441	my $md5 = Digest::MD5::md5_hex $data;	2885	my $md5 = Digest::MD5::md5_hex $data;
		2886	my $meta = "$RANDOMDIR/$md5.meta";
1442		2887
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	2889	aio_write $fh, 0, (length $data), $data, 0;
		2890	undef $fh;
		2891	aio_rename "$meta~", $meta;
1445		2892
		2893	my $slaying = "?random/$md5";
		2894
		2895	if ($exit->valid) {
1446	$exit->slaying ("?random/$md5");	2896	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	2897	$exit->msg (undef);
		2898	}
1448	}	2899	}
1449	}	2900	}
1450		2901
1451	sub cf::object::player::enter_exit {	2902	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	2903	my ($self, $exit) = @_;
1453		2904
1454	return unless $self->type == cf::PLAYER;	2905	return unless $self->type == cf::PLAYER;
1455		2906
1456	$self->enter_link;	2907	$self->enter_link;
1457		2908
1458	(Coro::async {	2909	(async {
		2910	$Coro::current->{desc} = "enter_exit";
		2911
1459	unless (eval {	2912	unless (eval {
		2913	$self->deactivate_recursive; # just to be sure
1460		2914
		2915	# random map handling
		2916	{
		2917	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2918
1461	prepare_random_map $exit	2919	prepare_random_map $exit
1462	if $exit->slaying eq "/!";	2920	if $exit->slaying eq "/!";
		2921	}
1463		2922
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2923	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2924	my $x = $exit->stats->hp;
		2925	my $y = $exit->stats->sp;
1466		2926
		2927	$self->goto ($map, $x, $y);
		2928
		2929	# if exit is damned, update players death & WoR home-position
		2930	$self->contr->savebed ($map, $x, $y)
		2931	if $exit->flag (cf::FLAG_DAMNED);
		2932
1467	1;	2933	1
1468	}) {	2934	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	2935	$self->message ("Something went wrong deep within the deliantra server. "
1470	. "I'll try to bring you back to the map you were before. "	2936	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	2937	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	2938	cf::NDI_UNIQUE | cf::NDI_RED);
1473		2939
1474	warn "ERROR in enter_exit: $@";	2940	error "ERROR in enter_exit: $@";
1475	$self->leave_link;	2941	$self->leave_link;
1476	}	2942	}
1477	})->prio (1);	2943	})->prio (1);
1478	}	2944	}
1479		2945
…		…
1490		2956
1491	sub cf::client::send_drawinfo {	2957	sub cf::client::send_drawinfo {
1492	my ($self, $text, $flags) = @_;	2958	my ($self, $text, $flags) = @_;
1493		2959
1494	utf8::encode $text;	2960	utf8::encode $text;
1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2961	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1496	}	2962	}
1497		2963
		2964	=item $client->send_big_packet ($pkt)
		2965
		2966	Like C<send_packet>, but tries to compress large packets, and fragments
		2967	them as required.
		2968
		2969	=cut
		2970
		2971	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2972
		2973	sub cf::client::send_big_packet {
		2974	my ($self, $pkt) = @_;
		2975
		2976	# try lzf for large packets
		2977	$pkt = "lzf " . Compress::LZF::compress $pkt
		2978	if 1024 <= length $pkt and $self->{can_lzf};
		2979
		2980	# split very large packets
		2981	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2982	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2983	$pkt = "frag";
		2984	}
		2985
		2986	$self->send_packet ($pkt);
		2987	}
		2988
		2989	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2990
		2991	Send a drawinfo or msg packet to the client, formatting the msg for the
		2992	client if neccessary. C<$type> should be a string identifying the type of
		2993	the message, with C<log> being the default. If C<$color> is negative, suppress
		2994	the message unless the client supports the msg packet.
		2995
		2996	=cut
		2997
		2998	# non-persistent channels (usually the info channel)
		2999	our %CHANNEL = (
		3000	"c/motd" => {
		3001	id => "infobox",
		3002	title => "MOTD",
		3003	reply => undef,
		3004	tooltip => "The message of the day",
		3005	},
		3006	"c/identify" => {
		3007	id => "infobox",
		3008	title => "Identify",
		3009	reply => undef,
		3010	tooltip => "Items recently identified",
		3011	},
		3012	"c/examine" => {
		3013	id => "infobox",
		3014	title => "Examine",
		3015	reply => undef,
		3016	tooltip => "Signs and other items you examined",
		3017	},
		3018	"c/shopinfo" => {
		3019	id => "infobox",
		3020	title => "Shop Info",
		3021	reply => undef,
		3022	tooltip => "What your bargaining skill tells you about the shop",
		3023	},
		3024	"c/book" => {
		3025	id => "infobox",
		3026	title => "Book",
		3027	reply => undef,
		3028	tooltip => "The contents of a note or book",
		3029	},
		3030	"c/lookat" => {
		3031	id => "infobox",
		3032	title => "Look",
		3033	reply => undef,
		3034	tooltip => "What you saw there",
		3035	},
		3036	"c/who" => {
		3037	id => "infobox",
		3038	title => "Players",
		3039	reply => undef,
		3040	tooltip => "Shows players who are currently online",
		3041	},
		3042	"c/body" => {
		3043	id => "infobox",
		3044	title => "Body Parts",
		3045	reply => undef,
		3046	tooltip => "Shows which body parts you posess and are available",
		3047	},
		3048	"c/statistics" => {
		3049	id => "infobox",
		3050	title => "Statistics",
		3051	reply => undef,
		3052	tooltip => "Shows your primary statistics",
		3053	},
		3054	"c/skills" => {
		3055	id => "infobox",
		3056	title => "Skills",
		3057	reply => undef,
		3058	tooltip => "Shows your experience per skill and item power",
		3059	},
		3060	"c/shopitems" => {
		3061	id => "infobox",
		3062	title => "Shop Items",
		3063	reply => undef,
		3064	tooltip => "Shows the items currently for sale in this shop",
		3065	},
		3066	"c/resistances" => {
		3067	id => "infobox",
		3068	title => "Resistances",
		3069	reply => undef,
		3070	tooltip => "Shows your resistances",
		3071	},
		3072	"c/pets" => {
		3073	id => "infobox",
		3074	title => "Pets",
		3075	reply => undef,
		3076	tooltip => "Shows information abotu your pets/a specific pet",
		3077	},
		3078	"c/perceiveself" => {
		3079	id => "infobox",
		3080	title => "Perceive Self",
		3081	reply => undef,
		3082	tooltip => "You gained detailed knowledge about yourself",
		3083	},
		3084	"c/uptime" => {
		3085	id => "infobox",
		3086	title => "Uptime",
		3087	reply => undef,
		3088	tooltip => "How long the server has been running since last restart",
		3089	},
		3090	"c/mapinfo" => {
		3091	id => "infobox",
		3092	title => "Map Info",
		3093	reply => undef,
		3094	tooltip => "Information related to the maps",
		3095	},
		3096	"c/party" => {
		3097	id => "party",
		3098	title => "Party",
		3099	reply => "gsay ",
		3100	tooltip => "Messages and chat related to your party",
		3101	},
		3102	"c/death" => {
		3103	id => "death",
		3104	title => "Death",
		3105	reply => undef,
		3106	tooltip => "Reason for and more info about your most recent death",
		3107	},
		3108	"c/say" => $SAY_CHANNEL,
		3109	"c/chat" => $CHAT_CHANNEL,
		3110	);
		3111
		3112	sub cf::client::send_msg {
		3113	my ($self, $channel, $msg, $color, @extra) = @_;
		3114
		3115	$msg = $self->pl->expand_cfpod ($msg)
		3116	unless $color & cf::NDI_VERBATIM;
		3117
		3118	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3119
		3120	# check predefined channels, for the benefit of C
		3121	if ($CHANNEL{$channel}) {
		3122	$channel = $CHANNEL{$channel};
		3123
		3124	$self->ext_msg (channel_info => $channel);
		3125	$channel = $channel->{id};
		3126
		3127	} elsif (ref $channel) {
		3128	# send meta info to client, if not yet sent
		3129	unless (exists $self->{channel}{$channel->{id}}) {
		3130	$self->{channel}{$channel->{id}} = $channel;
		3131	$self->ext_msg (channel_info => $channel);
		3132	}
		3133
		3134	$channel = $channel->{id};
		3135	}
		3136
		3137	return unless @extra || length $msg;
		3138
		3139	# default colour, mask it out
		3140	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3141	if $color & cf::NDI_DEF;
		3142
		3143	my $pkt = "msg "
		3144	. $self->{json_coder}->encode (
		3145	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3146	);
		3147
		3148	$self->send_big_packet ($pkt);
		3149	}
		3150
		3151	=item $client->ext_msg ($type, @msg)
		3152
		3153	Sends an ext event to the client.
		3154
		3155	=cut
		3156
		3157	sub cf::client::ext_msg($$@) {
		3158	my ($self, $type, @msg) = @_;
		3159
		3160	if ($self->extcmd == 2) {
		3161	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3162	} elsif ($self->extcmd == 1) { # TODO: remove
		3163	push @msg, msgtype => "event_$type";
		3164	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3165	}
		3166	}
		3167
		3168	=item $client->ext_reply ($msgid, @msg)
		3169
		3170	Sends an ext reply to the client.
		3171
		3172	=cut
		3173
		3174	sub cf::client::ext_reply($$@) {
		3175	my ($self, $id, @msg) = @_;
		3176
		3177	if ($self->extcmd == 2) {
		3178	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3179	} elsif ($self->extcmd == 1) {
		3180	#TODO: version 1, remove
		3181	unshift @msg, msgtype => "reply", msgid => $id;
		3182	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3183	}
		3184	}
1498		3185
1499	=item $success = $client->query ($flags, "text", \&cb)	3186	=item $success = $client->query ($flags, "text", \&cb)
1500		3187
1501	Queues a query to the client, calling the given callback with	3188	Queues a query to the client, calling the given callback with
1502	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3189	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1503	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3190	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1504		3191
1505	Queries can fail, so check the return code. Or don't, as queries will become	3192	Queries can fail, so check the return code. Or don't, as queries will
1506	reliable at some point in the future.	3193	become reliable at some point in the future.
1507		3194
1508	=cut	3195	=cut
1509		3196
1510	sub cf::client::query {	3197	sub cf::client::query {
1511	my ($self, $flags, $text, $cb) = @_;	3198	my ($self, $flags, $text, $cb) = @_;
…		…
1519	utf8::encode $text;	3206	utf8::encode $text;
1520	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3207	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1521		3208
1522	$self->send_packet ($self->{query_queue}[0][0])	3209	$self->send_packet ($self->{query_queue}[0][0])
1523	if @{ $self->{query_queue} } == 1;	3210	if @{ $self->{query_queue} } == 1;
		3211
		3212	1
1524	}	3213	}
1525		3214
1526	cf::client->attach (	3215	cf::client->attach (
		3216	on_connect => sub {
		3217	my ($ns) = @_;
		3218
		3219	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3220	},
1527	on_reply => sub {	3221	on_reply => sub {
1528	my ($ns, $msg) = @_;	3222	my ($ns, $msg) = @_;
1529		3223
1530	# this weird shuffling is so that direct followup queries	3224	# this weird shuffling is so that direct followup queries
1531	# get handled first	3225	# get handled first
1532	my $queue = delete $ns->{query_queue};	3226	my $queue = delete $ns->{query_queue}
		3227	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		3228
1534	(shift @$queue)->[1]->($msg);	3229	(shift @$queue)->[1]->($msg);
		3230	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		3231
1536	push @{ $ns->{query_queue} }, @$queue;	3232	push @{ $ns->{query_queue} }, @$queue;
1537		3233
1538	if (@{ $ns->{query_queue} } == @$queue) {	3234	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	3235	if (@$queue) {
…		…
1541	} else {	3237	} else {
1542	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3238	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1543	}	3239	}
1544	}	3240	}
1545	},	3241	},
		3242	on_exticmd => sub {
		3243	my ($ns, $buf) = @_;
		3244
		3245	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3246
		3247	if (ref $msg) {
		3248	my ($type, $reply, @payload) =
		3249	"ARRAY" eq ref $msg
		3250	? @$msg
		3251	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3252
		3253	my @reply;
		3254
		3255	if (my $cb = $EXTICMD{$type}) {
		3256	@reply = $cb->($ns, @payload);
		3257	}
		3258
		3259	$ns->ext_reply ($reply, @reply)
		3260	if $reply;
		3261
		3262	} else {
		3263	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3264	}
		3265
		3266	cf::override;
		3267	},
1546	);	3268	);
1547		3269
1548	=item $client->coro (\&cb)	3270	=item $client->async (\&cb)
1549		3271
1550	Create a new coroutine, running the specified callback. The coroutine will	3272	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	3273	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	3274	or loss of connection).
1553		3275
1554	=cut	3276	=cut
1555		3277
1556	sub cf::client::coro {	3278	sub cf::client::async {
1557	my ($self, $cb) = @_;	3279	my ($self, $cb) = @_;
1558		3280
1559	my $coro; $coro = async {	3281	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		3282
1566	$coro->on_destroy (sub {	3283	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	3284	delete $self->{_coro}{$coro+0};
1568	});	3285	});
1569		3286
…		…
1571		3288
1572	$coro	3289	$coro
1573	}	3290	}
1574		3291
1575	cf::client->attach (	3292	cf::client->attach (
1576	on_destroy => sub {	3293	on_client_destroy => sub {
1577	my ($ns) = @_;	3294	my ($ns) = @_;
1578		3295
1579	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3296	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1580	},	3297	},
1581	);	3298	);
…		…
1596	our $safe = new Safe "safe";	3313	our $safe = new Safe "safe";
1597	our $safe_hole = new Safe::Hole;	3314	our $safe_hole = new Safe::Hole;
1598		3315
1599	$SIG{FPE} = 'IGNORE';	3316	$SIG{FPE} = 'IGNORE';
1600		3317
1601	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3318	$safe->permit_only (Opcode::opset qw(
		3319	:base_core :base_mem :base_orig :base_math :base_loop
		3320	grepstart grepwhile mapstart mapwhile
		3321	sort time
		3322	));
1602		3323
1603	# here we export the classes and methods available to script code	3324	# here we export the classes and methods available to script code
1604		3325
1605	=pod	3326	=pod
1606		3327
1607	The following fucntions and emthods are available within a safe environment:	3328	The following functions and methods are available within a safe environment:
1608		3329
1609	cf::object contr pay_amount pay_player map	3330	cf::object
		3331	contr pay_amount pay_player map x y force_find force_add destroy
		3332	insert remove name archname title slaying race decrease split
		3333	value
		3334
1610	cf::object::player player	3335	cf::object::player
1611	cf::player peaceful	3336	player
1612	cf::map trigger	3337
		3338	cf::player
		3339	peaceful
		3340
		3341	cf::map
		3342	trigger
1613		3343
1614	=cut	3344	=cut
1615		3345
1616	for (	3346	for (
1617	["cf::object" => qw(contr pay_amount pay_player map)],	3347	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3348	insert remove inv nrof name archname title slaying race
		3349	decrease split destroy change_exp value msg lore send_msg)],
1618	["cf::object::player" => qw(player)],	3350	["cf::object::player" => qw(player)],
1619	["cf::player" => qw(peaceful)],	3351	["cf::player" => qw(peaceful send_msg)],
1620	["cf::map" => qw(trigger)],	3352	["cf::map" => qw(trigger)],
1621	) {	3353	) {
1622	no strict 'refs';
1623	my ($pkg, @funs) = @$_;	3354	my ($pkg, @funs) = @$_;
1624	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3355	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1625	for @funs;	3356	for @funs;
1626	}	3357	}
1627		3358
…		…
1642		3373
1643	my $qcode = $code;	3374	my $qcode = $code;
1644	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3375	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1645	$qcode =~ s/\n/\\n/g;	3376	$qcode =~ s/\n/\\n/g;
1646		3377
		3378	%vars = (_dummy => 0) unless %vars;
		3379
		3380	my @res;
1647	local $_;	3381	local $_;
1648	local @safe::cf::_safe_eval_args = values %vars;
1649		3382
1650	my $eval =	3383	my $eval =
1651	"do {\n"	3384	"do {\n"
1652	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3385	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1653	. "#line 0 \"{$qcode}\"\n"	3386	. "#line 0 \"{$qcode}\"\n"
1654	. $code	3387	. $code
1655	. "\n}"	3388	. "\n}"
1656	;	3389	;
1657		3390
		3391	if ($CFG{safe_eval}) {
1658	sub_generation_inc;	3392	sub_generation_inc;
		3393	local @safe::cf::_safe_eval_args = values %vars;
1659	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3394	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1660	sub_generation_inc;	3395	sub_generation_inc;
		3396	} else {
		3397	local @cf::_safe_eval_args = values %vars;
		3398	@res = wantarray ? eval eval : scalar eval $eval;
		3399	}
1661		3400
1662	if ($@) {	3401	if ($@) {
1663	warn "$@";	3402	warn "$@",
1664	warn "while executing safe code '$code'\n";	3403	"while executing safe code '$code'\n",
1665	warn "with arguments " . (join " ", %vars) . "\n";	3404	"with arguments " . (join " ", %vars) . "\n";
1666	}	3405	}
1667		3406
1668	wantarray ? @res : $res[0]	3407	wantarray ? @res : $res[0]
1669	}	3408	}
1670		3409
…		…
1684	=cut	3423	=cut
1685		3424
1686	sub register_script_function {	3425	sub register_script_function {
1687	my ($fun, $cb) = @_;	3426	my ($fun, $cb) = @_;
1688		3427
1689	no strict 'refs';	3428	$fun = "safe::$fun" if $CFG{safe_eval};
1690	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3429	*$fun = $safe_hole->wrap ($cb);
1691	}	3430	}
1692		3431
1693	=back	3432	=back
1694		3433
1695	=cut	3434	=cut
1696		3435
1697	#############################################################################	3436	#############################################################################
		3437	# the server's init and main functions
1698		3438
1699	=head2 EXTENSION DATABASE SUPPORT	3439	sub load_facedata($) {
		3440	my ($path) = @_;
1700		3441
1701	Crossfire maintains a very simple database for extension use. It can	3442	# HACK to clear player env face cache, we need some signal framework
1702	currently store anything that can be serialised using Storable, which	3443	# for this (global event?)
1703	excludes objects.	3444	%ext::player_env::MUSIC_FACE_CACHE = ();
1704		3445
1705	The parameter C<$family> should best start with the name of the extension	3446	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1706	using it, it should be unique.
1707		3447
1708	=over 4	3448	trace "loading facedata from $path\n";
1709		3449
1710	=item $hashref = cf::db_get $family	3450	my $facedata = decode_storable load_file $path;
1711		3451
1712	Return a hashref for use by the extension C<$family>, which can be	3452	$facedata->{version} == 2
1713	modified. After modifications, you have to call C<cf::db_dirty> or	3453	or cf::cleanup "$path: version mismatch, cannot proceed.";
1714	C<cf::db_sync>.
1715		3454
1716	=item $value = cf::db_get $family => $key	3455	# patch in the exptable
1717		3456	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1718	Returns a single value from the database	3457	$facedata->{resource}{"res/exp_table"} = {
1719		3458	type => FT_RSRC,
1720	=item cf::db_put $family => $hashref	3459	data => $exp_table,
1721		3460	hash => (Digest::MD5::md5 $exp_table),
1722	Stores the given family hashref into the database. Updates are delayed, if
1723	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1724
1725	=item cf::db_put $family => $key => $value
1726
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you
1728	want the data to be synced to disk immediately, use C<cf::db_sync>.
1729
1730	=item cf::db_dirty
1731
1732	Marks the database as dirty, to be updated at a later time.
1733
1734	=item cf::db_sync
1735
1736	Immediately write the database to disk I<if it is dirty>.
1737
1738	=cut
1739
1740	our $DB;
1741
1742	{
1743	my $path = cf::localdir . "/database.pst";
1744
1745	sub db_load() {
1746	warn "loading database $path\n";#d# remove later
1747	$DB = stat $path ? Storable::retrieve $path : { };
1748	}
1749
1750	my $pid;
1751
1752	sub db_save() {
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;
1759	cf::_exit 0 if defined $pid;
1760	}
1761	}
1762
1763	my $dirty;
1764
1765	sub db_sync() {
1766	db_save if $dirty;
1767	undef $dirty;
1768	}
1769
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1771	db_sync;
1772	});	3461	};
		3462	cf::cede_to_tick;
1773		3463
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}	3464	{
		3465	my $faces = $facedata->{faceinfo};
1778		3466
1779	sub db_get($;$) {	3467	while (my ($face, $info) = each %$faces) {
1780	@_ >= 2	3468	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784		3469
1785	sub db_put($$;$) {	3470	cf::face::set_visibility $idx, $info->{visibility};
1786	if (@_ >= 3) {	3471	cf::face::set_magicmap $idx, $info->{magicmap};
1787	$DB->{$_[0]}{$_[1]} = $_[2];	3472	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1788	} else {	3473	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1789	$DB->{$_[0]} = $_[1];	3474	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1790	}
1791	db_dirty;
1792	}
1793		3475
1794	cf::global->attach (	3476	cf::cede_to_tick;
1795	prio => 10000,
1796	on_cleanup => sub {
1797	db_sync;
1798	},	3477	}
1799	);
1800	}
1801		3478
1802	#############################################################################	3479	while (my ($face, $info) = each %$faces) {
1803	# the server's main()	3480	next unless $info->{smooth};
1804		3481
1805	sub cfg_load {	3482	my $idx = cf::face::find $face
1806	open my $fh, "<:utf8", cf::confdir . "/config"	3483	or next;
1807	or return;
1808		3484
1809	local $/;	3485	if (my $smooth = cf::face::find $info->{smooth}) {
1810	*CFG = YAML::Syck::Load <$fh>;	3486	cf::face::set_smooth $idx, $smooth;
		3487	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3488	} else {
		3489	error "smooth face '$info->{smooth}' not found for face '$face'";
		3490	}
		3491
		3492	cf::cede_to_tick;
		3493	}
		3494	}
		3495
		3496	{
		3497	my $anims = $facedata->{animinfo};
		3498
		3499	while (my ($anim, $info) = each %$anims) {
		3500	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3501	cf::cede_to_tick;
		3502	}
		3503
		3504	cf::anim::invalidate_all; # d'oh
		3505	}
		3506
		3507	{
		3508	my $res = $facedata->{resource};
		3509
		3510	while (my ($name, $info) = each %$res) {
		3511	if (defined $info->{type}) {
		3512	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3513
		3514	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3515	cf::face::set_type $idx, $info->{type};
		3516	} else {
		3517	$RESOURCE{$name} = $info; # unused
		3518	}
		3519
		3520	cf::cede_to_tick;
		3521	}
		3522	}
		3523
		3524	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3525
		3526	1
		3527	}
		3528
		3529	register_exticmd fx_want => sub {
		3530	my ($ns, $want) = @_;
		3531
		3532	while (my ($k, $v) = each %$want) {
		3533	$ns->fx_want ($k, $v);
		3534	}
		3535	};
		3536
		3537	sub load_resource_file($) {
		3538	my $guard = lock_acquire "load_resource_file";
		3539
		3540	my $status = load_resource_file_ $_[0];
		3541	get_slot 0.1, 100;
		3542	cf::arch::commit_load;
		3543
		3544	$status
		3545	}
		3546
		3547	sub reload_regions {
		3548	# HACK to clear player env face cache, we need some signal framework
		3549	# for this (global event?)
		3550	%ext::player_env::MUSIC_FACE_CACHE = ();
		3551
		3552	load_resource_file "$MAPDIR/regions"
		3553	or die "unable to load regions file\n";
		3554
		3555	for (cf::region::list) {
		3556	$_->{match} = qr/$_->{match}/
		3557	if exists $_->{match};
		3558	}
		3559	}
		3560
		3561	sub reload_facedata {
		3562	load_facedata "$DATADIR/facedata"
		3563	or die "unable to load facedata\n";
		3564	}
		3565
		3566	sub reload_archetypes {
		3567	load_resource_file "$DATADIR/archetypes"
		3568	or die "unable to load archetypes\n";
		3569	}
		3570
		3571	sub reload_treasures {
		3572	load_resource_file "$DATADIR/treasures"
		3573	or die "unable to load treasurelists\n";
		3574	}
		3575
		3576	sub reload_sound {
		3577	trace "loading sound config from $DATADIR/sound\n";
		3578
		3579	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3580
		3581	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3582	my $sound = $soundconf->{compat}[$_]
		3583	or next;
		3584
		3585	my $face = cf::face::find "sound/$sound->[1]";
		3586	cf::sound::set $sound->[0] => $face;
		3587	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3588	}
		3589
		3590	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3591	my $face = cf::face::find "sound/$v";
		3592	cf::sound::set $k => $face;
		3593	}
		3594	}
		3595
		3596	sub reload_resources {
		3597	trace "reloading resource files...\n";
		3598
		3599	reload_exp_table;
		3600	reload_materials;
		3601	reload_facedata;
		3602	reload_sound;
		3603	reload_archetypes;
		3604	reload_regions;
		3605	reload_treasures;
		3606
		3607	trace "finished reloading resource files\n";
		3608	}
		3609
		3610	sub reload_config {
		3611	trace "reloading config file...\n";
		3612
		3613	my $config = load_file "$CONFDIR/config";
		3614	utf8::decode $config;
		3615	*CFG = decode_yaml $config;
		3616
		3617	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3618
		3619	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3620	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3621
		3622	if (exists $CFG{mlockall}) {
		3623	eval {
		3624	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3625	and die "WARNING: m(un)lockall failed: $!\n";
		3626	};
		3627	warn $@ if $@;
		3628	}
		3629	}
		3630
		3631	sub pidfile() {
		3632	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3633	or die "$PIDFILE: $!";
		3634	flock $fh, &Fcntl::LOCK_EX
		3635	or die "$PIDFILE: flock: $!";
		3636	$fh
		3637	}
		3638
		3639	# make sure only one server instance is running at any one time
		3640	sub atomic {
		3641	my $fh = pidfile;
		3642
		3643	my $pid = <$fh>;
		3644	kill 9, $pid if $pid > 0;
		3645
		3646	seek $fh, 0, 0;
		3647	print $fh $$;
		3648	}
		3649
		3650	sub main_loop {
		3651	trace "EV::loop starting\n";
		3652	if (1) {
		3653	EV::loop;
		3654	}
		3655	trace "EV::loop returned\n";
		3656	goto &main_loop unless $REALLY_UNLOOP;
1811	}	3657	}
1812		3658
1813	sub main {	3659	sub main {
		3660	cf::init_globals; # initialise logging
		3661
		3662	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3663	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3664	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3665	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3666
		3667	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3668
1814	# we must not ever block the main coroutine	3669	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	3670	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3671	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	3672	(async {
1818	Event::one_event;	3673	$Coro::current->{desc} = "IDLE BUG HANDLER";
1819	})->();	3674	EV::loop EV::LOOP_ONESHOT;
		3675	})->prio (Coro::PRIO_MAX);
1820	};	3676	};
1821		3677
1822	cfg_load;	3678	evthread_start IO::AIO::poll_fileno;
1823	db_load;	3679
		3680	cf::sync_job {
		3681	cf::incloader::init ();
		3682
		3683	cf::init_anim;
		3684	cf::init_attackmess;
		3685	cf::init_dynamic;
		3686
		3687	cf::load_settings;
		3688
		3689	reload_resources;
		3690	reload_config;
		3691	db_init;
		3692
		3693	cf::init_uuid;
		3694	cf::init_signals;
		3695	cf::init_skills;
		3696
		3697	cf::init_beforeplay;
		3698
		3699	atomic;
		3700
1824	load_extensions;	3701	load_extensions;
1825	Event::loop;	3702
		3703	utime time, time, $RUNTIMEFILE;
		3704
		3705	# no (long-running) fork's whatsoever before this point(!)
		3706	use POSIX ();
		3707	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3708
		3709	cf::_post_init 0;
		3710	};
		3711
		3712	cf::object::thawer::errors_are_fatal 0;
		3713	info "parse errors in files are no longer fatal from this point on.\n";
		3714
		3715	my $free_main; $free_main = EV::idle sub {
		3716	undef $free_main;
		3717	undef &main; # free gobs of memory :)
		3718	};
		3719
		3720	goto &main_loop;
1826	}	3721	}
1827		3722
1828	#############################################################################	3723	#############################################################################
1829	# initialisation	3724	# initialisation and cleanup
1830		3725
1831	sub perl_reload() {	3726	# install some emergency cleanup handlers
		3727	BEGIN {
		3728	our %SIGWATCHER = ();
		3729	for my $signal (qw(INT HUP TERM)) {
		3730	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3731	cf::cleanup "SIG$signal";
		3732	};
		3733	}
		3734	}
		3735
		3736	sub write_runtime_sync {
		3737	my $t0 = AE::time;
		3738
		3739	# first touch the runtime file to show we are still running:
		3740	# the fsync below can take a very very long time.
		3741
		3742	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3743
		3744	my $guard = cf::lock_acquire "write_runtime";
		3745
		3746	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3747	or return;
		3748
		3749	my $value = $cf::RUNTIME + 90 + 10;
		3750	# 10 is the runtime save interval, for a monotonic clock
		3751	# 60 allows for the watchdog to kill the server.
		3752
		3753	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3754	and return;
		3755
		3756	# always fsync - this file is important
		3757	aio_fsync $fh
		3758	and return;
		3759
		3760	# touch it again to show we are up-to-date
		3761	aio_utime $fh, undef, undef;
		3762
		3763	close $fh
		3764	or return;
		3765
		3766	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3767	and return;
		3768
		3769	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3770
		3771	1
		3772	}
		3773
		3774	our $uuid_lock;
		3775	our $uuid_skip;
		3776
		3777	sub write_uuid_sync($) {
		3778	$uuid_skip ||= $_[0];
		3779
		3780	return if $uuid_lock;
		3781	local $uuid_lock = 1;
		3782
		3783	my $uuid = "$LOCALDIR/uuid";
		3784
		3785	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3786	or return;
		3787
		3788	my $value = uuid_seq uuid_cur;
		3789
		3790	unless ($value) {
		3791	info "cowardly refusing to write zero uuid value!\n";
		3792	return;
		3793	}
		3794
		3795	my $value = uuid_str $value + $uuid_skip;
		3796	$uuid_skip = 0;
		3797
		3798	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3799	and return;
		3800
		3801	# always fsync - this file is important
		3802	aio_fsync $fh
		3803	and return;
		3804
		3805	close $fh
		3806	or return;
		3807
		3808	aio_rename "$uuid~", $uuid
		3809	and return;
		3810
		3811	trace "uuid file written ($value).\n";
		3812
		3813	1
		3814
		3815	}
		3816
		3817	sub write_uuid($$) {
		3818	my ($skip, $sync) = @_;
		3819
		3820	$sync ? write_uuid_sync $skip
		3821	: async { write_uuid_sync $skip };
		3822	}
		3823
		3824	sub emergency_save() {
		3825	my $freeze_guard = cf::freeze_mainloop;
		3826
		3827	info "emergency_perl_save: enter\n";
		3828
		3829	# this is a trade-off: we want to be very quick here, so
		3830	# save all maps without fsync, and later call a global sync
		3831	# (which in turn might be very very slow)
		3832	local $USE_FSYNC = 0;
		3833
		3834	cf::sync_job {
		3835	cf::write_runtime_sync; # external watchdog should not bark
		3836
		3837	# use a peculiar iteration method to avoid tripping on perl
		3838	# refcount bugs in for. also avoids problems with players
		3839	# and maps saved/destroyed asynchronously.
		3840	info "emergency_perl_save: begin player save\n";
		3841	for my $login (keys %cf::PLAYER) {
		3842	my $pl = $cf::PLAYER{$login} or next;
		3843	$pl->valid or next;
		3844	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3845	$pl->save;
		3846	}
		3847	info "emergency_perl_save: end player save\n";
		3848
		3849	cf::write_runtime_sync; # external watchdog should not bark
		3850
		3851	info "emergency_perl_save: begin map save\n";
		3852	for my $path (keys %cf::MAP) {
		3853	my $map = $cf::MAP{$path} or next;
		3854	$map->valid or next;
		3855	$map->save;
		3856	}
		3857	info "emergency_perl_save: end map save\n";
		3858
		3859	cf::write_runtime_sync; # external watchdog should not bark
		3860
		3861	info "emergency_perl_save: begin database checkpoint\n";
		3862	BDB::db_env_txn_checkpoint $DB_ENV;
		3863	info "emergency_perl_save: end database checkpoint\n";
		3864
		3865	info "emergency_perl_save: begin write uuid\n";
		3866	write_uuid_sync 1;
		3867	info "emergency_perl_save: end write uuid\n";
		3868
		3869	cf::write_runtime_sync; # external watchdog should not bark
		3870
		3871	trace "emergency_perl_save: syncing database to disk";
		3872	BDB::db_env_txn_checkpoint $DB_ENV;
		3873
		3874	info "emergency_perl_save: starting sync\n";
		3875	IO::AIO::aio_sync sub {
		3876	info "emergency_perl_save: finished sync\n";
		3877	};
		3878
		3879	cf::write_runtime_sync; # external watchdog should not bark
		3880
		3881	trace "emergency_perl_save: flushing outstanding aio requests";
		3882	while (IO::AIO::nreqs || BDB::nreqs) {
		3883	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3884	}
		3885
		3886	cf::write_runtime_sync; # external watchdog should not bark
		3887	};
		3888
		3889	info "emergency_perl_save: leave\n";
		3890	}
		3891
		3892	sub post_cleanup {
		3893	my ($make_core) = @_;
		3894
		3895	IO::AIO::flush;
		3896
		3897	error Carp::longmess "post_cleanup backtrace"
		3898	if $make_core;
		3899
		3900	my $fh = pidfile;
		3901	unlink $PIDFILE if <$fh> == $$;
		3902	}
		3903
		3904	# a safer delete_package, copied from Symbol
		3905	sub clear_package($) {
		3906	my $pkg = shift;
		3907
		3908	# expand to full symbol table name if needed
		3909	unless ($pkg =~ /^main::.*::$/) {
		3910	$pkg = "main$pkg" if $pkg =~ /^::/;
		3911	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3912	$pkg .= '::' unless $pkg =~ /::$/;
		3913	}
		3914
		3915	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3916	my $stem_symtab = *{$stem}{HASH};
		3917
		3918	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3919	or return;
		3920
		3921	# clear all symbols
		3922	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3923	for my $name (keys %$leaf_symtab) {
		3924	_gv_clear *{"$pkg$name"};
		3925	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3926	}
		3927	}
		3928
		3929	sub do_reload_perl() {
1832	# can/must only be called in main	3930	# can/must only be called in main
		3931	unless (in_main) {
		3932	error "can only reload from main coroutine";
		3933	return;
		3934	}
		3935
		3936	return if $RELOAD++;
		3937
		3938	my $t1 = AE::time;
		3939
		3940	while ($RELOAD) {
		3941	cf::get_slot 0.1, -1, "reload_perl";
		3942	info "perl_reload: reloading...";
		3943
		3944	trace "perl_reload: entering sync_job";
		3945
		3946	cf::sync_job {
		3947	#cf::emergency_save;
		3948
		3949	trace "perl_reload: cancelling all extension coros";
		3950	$_->cancel for values %EXT_CORO;
		3951	%EXT_CORO = ();
		3952
		3953	trace "perl_reload: removing commands";
		3954	%COMMAND = ();
		3955
		3956	trace "perl_reload: removing ext/exti commands";
		3957	%EXTCMD = ();
		3958	%EXTICMD = ();
		3959
		3960	trace "perl_reload: unloading/nuking all extensions";
		3961	for my $pkg (@EXTS) {
		3962	trace "... unloading $pkg";
		3963
		3964	if (my $cb = $pkg->can ("unload")) {
		3965	eval {
		3966	$cb->($pkg);
		3967	1
		3968	} or error "$pkg unloaded, but with errors: $@";
		3969	}
		3970
		3971	trace "... clearing $pkg";
		3972	clear_package $pkg;
		3973	}
		3974
		3975	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3976	while (my ($k, $v) = each %INC) {
		3977	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3978
		3979	trace "... unloading $k";
		3980	delete $INC{$k};
		3981
		3982	$k =~ s/\.pm$//;
		3983	$k =~ s/\//::/g;
		3984
		3985	if (my $cb = $k->can ("unload_module")) {
		3986	$cb->();
		3987	}
		3988
		3989	clear_package $k;
		3990	}
		3991
		3992	trace "perl_reload: getting rid of safe::, as good as possible";
		3993	clear_package "safe::$_"
		3994	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		3995
		3996	trace "perl_reload: unloading cf.pm \"a bit\"";
		3997	delete $INC{"cf.pm"};
		3998	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
		3999
		4000	# don't, removes xs symbols, too,
		4001	# and global variables created in xs
		4002	#clear_package __PACKAGE__;
		4003
		4004	info "perl_reload: unload completed, starting to reload now";
		4005
		4006	trace "perl_reload: reloading cf.pm";
		4007	require cf;
		4008	cf::_connect_to_perl_1;
		4009
		4010	trace "perl_reload: loading config and database again";
		4011	cf::reload_config;
		4012
		4013	trace "perl_reload: loading extensions";
		4014	cf::load_extensions;
		4015
		4016	if ($REATTACH_ON_RELOAD) {
		4017	trace "perl_reload: reattaching attachments to objects/players";
		4018	_global_reattach; # objects, sockets
		4019	trace "perl_reload: reattaching attachments to maps";
		4020	reattach $_ for values %MAP;
		4021	trace "perl_reload: reattaching attachments to players";
		4022	reattach $_ for values %PLAYER;
		4023	}
		4024
		4025	cf::_post_init 1;
		4026
		4027	trace "perl_reload: leaving sync_job";
		4028
		4029	1
		4030	} or do {
		4031	error $@;
		4032	cf::cleanup "perl_reload: error, exiting.";
		4033	};
		4034
		4035	--$RELOAD;
		4036	}
		4037
		4038	$t1 = AE::time - $t1;
		4039	info "perl_reload: completed in ${t1}s\n";
		4040	};
		4041
		4042	our $RELOAD_WATCHER; # used only during reload
		4043
		4044	sub reload_perl() {
		4045	# doing reload synchronously and two reloads happen back-to-back,
		4046	# coro crashes during coro_state_free->destroy here.
		4047
		4048	$RELOAD_WATCHER ||= cf::async {
		4049	Coro::AIO::aio_wait cache_extensions;
		4050
		4051	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4052	do_reload_perl;
		4053	undef $RELOAD_WATCHER;
		4054	};
		4055	};
		4056	}
		4057
		4058	register_command "reload" => sub {
		4059	my ($who, $arg) = @_;
		4060
		4061	if ($who->flag (FLAG_WIZ)) {
		4062	$who->message ("reloading server.");
		4063	async {
		4064	$Coro::current->{desc} = "perl_reload";
		4065	reload_perl;
		4066	};
		4067	}
		4068	};
		4069
		4070	#############################################################################
		4071
		4072	my $bug_warning = 0;
		4073
		4074	our @WAIT_FOR_TICK;
		4075	our @WAIT_FOR_TICK_BEGIN;
		4076
		4077	sub wait_for_tick() {
		4078	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4079
		4080	my $signal = new Coro::Signal;
		4081	push @WAIT_FOR_TICK, $signal;
		4082	$signal->wait;
		4083	}
		4084
		4085	sub wait_for_tick_begin() {
		4086	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4087
		4088	my $signal = new Coro::Signal;
		4089	push @WAIT_FOR_TICK_BEGIN, $signal;
		4090	$signal->wait;
		4091	}
		4092
		4093	sub tick {
1833	if ($Coro::current != $Coro::main) {	4094	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	4095	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4096	unless ++$bug_warning > 10;
1835	return;	4097	return;
1836	}	4098	}
1837		4099
1838	warn "reloading...";	4100	cf::server_tick; # one server iteration
1839		4101
1840	local $FREEZE = 1;	4102	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
1841	cf::emergency_save;
1842		4103
1843	eval {	4104	if ($NOW >= $NEXT_RUNTIME_WRITE) {
1844	# if anything goes wrong in here, we should simply crash as we already saved	4105	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
1845		4106	Coro::async_pool {
1846	# cancel all watchers	4107	$Coro::current->{desc} = "runtime saver";
1847	for (Event::all_watchers) {	4108	write_runtime_sync
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	4109	or error "ERROR: unable to write runtime file: $!";
1849	}	4110	};
		4111	}
1850		4112
1851	# cancel all extension coros	4113	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
1852	$_->cancel for values %EXT_CORO;	4114	$sig->send;
1853	%EXT_CORO = ();	4115	}
		4116	while (my $sig = shift @WAIT_FOR_TICK) {
		4117	$sig->send;
		4118	}
1854		4119
1855	# unload all extensions	4120	$LOAD = ($NOW - $TICK_START) / $TICK;
1856	for (@exts) {	4121	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
1857	warn "unloading <$_>";
1858	unload_extension $_;
1859	}
1860		4122
1861	# unload all modules loaded from $LIBDIR	4123	if (0) {
1862	while (my ($k, $v) = each %INC) {	4124	if ($NEXT_TICK) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4125	my $jitter = $TICK_START - $NEXT_TICK;
		4126	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4127	debug "jitter $JITTER\n";#d#
		4128	}
		4129	}
		4130	}
1864		4131
1865	warn "removing <$k>";	4132	{
1866	delete $INC{$k};	4133	# configure BDB
1867		4134
1868	$k =~ s/\.pm$//;	4135	BDB::min_parallel 16;
1869	$k =~ s/\//::/g;	4136	BDB::max_poll_reqs $TICK * 0.1;
		4137	$AnyEvent::BDB::WATCHER->priority (1);
1870		4138
1871	if (my $cb = $k->can ("unload_module")) {	4139	unless ($DB_ENV) {
1872	$cb->();	4140	$DB_ENV = BDB::db_env_create;
		4141	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4142	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4143	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4144	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4145	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4146
		4147	cf::sync_job {
		4148	eval {
		4149	BDB::db_env_open
		4150	$DB_ENV,
		4151	$BDBDIR,
		4152	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4153	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4154	0666;
		4155
		4156	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1873	}	4157	};
1874		4158
1875	Symbol::delete_package $k;	4159	cf::cleanup "db_env_open(db): $@" if $@;
1876	}	4160	};
		4161	}
1877		4162
1878	# sync database to disk	4163	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1879	cf::db_sync;	4164	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible
1883	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"
1890	delete $INC{"cf.pm"};
1891
1892	# don't, removes xs symbols, too,
1893	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;
1895
1896	# reload cf.pm
1897	warn "reloading cf.pm";
1898	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900
1901	# load config and database again
1902	cf::cfg_load;
1903	cf::db_load;
1904
1905	# load extensions
1906	warn "load extensions";
1907	cf::load_extensions;
1908
1909	# reattach attachments to objects
1910	warn "reattach";
1911	_global_reattach;
1912	};	4165	};
1913		4166	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1914	if ($@) {	4167	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1915	warn $@;
1916	warn "error while reloading, exiting.";
1917	exit 1;
1918	}	4168	};
		4169	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4170	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4171	};
		4172	}
1919		4173
1920	warn "reloaded successfully";	4174	{
1921	};	4175	# configure IO::AIO
1922		4176
1923	#############################################################################	4177	IO::AIO::min_parallel 8;
		4178	IO::AIO::max_poll_time $TICK * 0.1;
		4179	undef $AnyEvent::AIO::WATCHER;
		4180	}
1924		4181
1925	unless ($LINK_MAP) {	4182	our $_log_backtrace;
1926	$LINK_MAP = cf::map::new;	4183	our $_log_backtrace_last;
1927		4184
1928	$LINK_MAP->width (41);	4185	sub _log_backtrace {
1929	$LINK_MAP->height (41);	4186	my ($msg, @addr) = @_;
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934		4187
1935	# dirty hack because... archetypes are not yet loaded	4188	$msg =~ s/\n$//;
1936	Event->timer (
1937	after => 2,
1938	cb => sub {
1939	$_[0]->w->cancel;
1940		4189
1941	# provide some exits "home"	4190	if ($_log_backtrace_last eq $msg) {
1942	my $exit = cf::object::new "exit";	4191	LOG llevInfo, "[ABT] $msg\n";
		4192	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4193	# limit the # of concurrent backtraces
		4194	} elsif ($_log_backtrace < 2) {
		4195	$_log_backtrace_last = $msg;
		4196	++$_log_backtrace;
		4197	my $perl_bt = Carp::longmess $msg;
		4198	async {
		4199	$Coro::current->{desc} = "abt $msg";
1943		4200
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);	4201	my @bt = fork_call {
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);	4202	@addr = map { sprintf "%x", $_ } @addr;
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);	4203	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4204	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4205	or die "addr2line: $!";
1947		4206
1948	$LINK_MAP->insert ($exit->clone, 19, 19);	4207	my @funcs;
1949	$LINK_MAP->insert ($exit->clone, 19, 20);	4208	my @res = <$fh>;
1950	$LINK_MAP->insert ($exit->clone, 19, 21);	4209	chomp for @res;
1951	$LINK_MAP->insert ($exit->clone, 20, 19);	4210	while (@res) {
1952	$LINK_MAP->insert ($exit->clone, 20, 21);	4211	my ($func, $line) = splice @res, 0, 2, ();
1953	$LINK_MAP->insert ($exit->clone, 21, 19);	4212	push @funcs, "[$func] $line";
1954	$LINK_MAP->insert ($exit->clone, 21, 20);	4213	}
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956		4214
1957	$exit->destroy;	4215	@funcs
		4216	};
		4217
		4218	LOG llevInfo, "[ABT] $perl_bt\n";
		4219	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4220	LOG llevInfo, "[ABT] $_\n" for @bt;
		4221	--$_log_backtrace;
1958	});	4222	};
1959		4223	} else {
1960	$LINK_MAP->{deny_save} = 1;	4224	LOG llevInfo, "[ABT] $msg\n";
1961	$LINK_MAP->{deny_reset} = 1;	4225	LOG llevInfo, "[ABT] [overload, suppressed]\n";
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}
1965
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {
1969	my ($who, $arg) = @_;
1970
1971	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");
1975	}
1976	};
1977
1978	unshift @INC, $LIBDIR;
1979
1980	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,
1982	prio => 0,
1983	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,
1985	cb => sub {
1986	unless ($FREEZE) {
1987	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;
1989	}
1990
1991	$NEXT_TICK += $TICK;
1992
1993	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1995
1996	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;
1998	},	4226	}
1999	);	4227	}
2000		4228
2001	IO::AIO::max_poll_time $TICK * 0.2;	4229	# load additional modules
		4230	require "cf/$_.pm" for @EXTRA_MODULES;
		4231	cf::_connect_to_perl_2;
2002		4232
2003	Event->io (	4233	END { cf::emergency_save }
2004	fd => IO::AIO::poll_fileno,
2005	poll => 'r',
2006	prio => 5,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,
2013	after => 0,
2014	interval => 10,
2015	cb => sub {
2016	(Coro::unblock_sub {
2017	write_runtime
2018	or warn "ERROR: unable to write runtime file: $!";
2019	})->();
2020	},
2021	);
2022		4234
2023	1	4235	1
2024		4236

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