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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.118 by root, Mon Jan 1 21:19:52 2007 UTC vs.
Revision 1.574 by root, Sun May 8 21:51:27 2011 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011 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;
		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);
		132
		133	our %CFG;
		134
		135	our $UPTIME; $UPTIME ||= time;
		136	our $RUNTIME = 0;
		137	our $SERVER_TICK = 0;
45	our $NOW;	138	our $NOW;
46		139
47	our %CFG;	140	our (%PLAYER, %PLAYER_LOADING); # all users
		141	our (%MAP, %MAP_LOADING ); # all maps
		142	our $LINK_MAP; # the special {link} map, which is always available
48		143
49	our $UPTIME; $UPTIME ||= time;	144	# used to convert map paths into valid unix filenames by replacing / by ∕
50	our $RUNTIME;	145	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
51		146
52	our %MAP; # all maps	147	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
53	our $LINK_MAP; # the special {link} map	148	our $LOADAVG; # same thing, but with alpha-smoothing
54	our $FREEZE;	149	our $JITTER; # average jitter
55	our $RANDOM_MAPS = cf::localdir . "/random";	150	our $TICK_START; # for load detecting purposes
56	our %EXT_CORO;	151
		152	our @POST_INIT;
		153
		154	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		155	our $REALLY_UNLOOP; # never set to true, please :)
		156
		157	our $WAIT_FOR_TICK = new Coro::Signal;
		158	our @WAIT_FOR_TICK_BEGIN;
57		159
58	binmode STDOUT;	160	binmode STDOUT;
59	binmode STDERR;	161	binmode STDERR;
60		162
61	# read virtual server time, if available	163	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	164	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	165	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	166	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	167	$RUNTIME = <$fh> + 0.;
66	}	168	}
67		169
68	mkdir cf::localdir;	170	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		171
74	# a special map that is always available	172	mkdir $_
75	our $LINK_MAP;	173	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		174
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	175	our $EMERGENCY_POSITION;
		176
		177	sub cf::map::normalise;
		178
		179	sub in_main() {
		180	$Coro::current == $Coro::main
		181	}
78		182
79	#############################################################################	183	#############################################################################
80		184
		185	%REFLECT = ();
		186	for (@REFLECT) {
		187	my $reflect = JSON::XS::decode_json $_;
		188	$REFLECT{$reflect->{class}} = $reflect;
		189	}
		190
		191	# this is decidedly evil
		192	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		193
		194	#############################################################################
		195
81	=head2 GLOBAL VARIABLES	196	=head2 GLOBAL VARIABLES
82		197
83	=over 4	198	=over 4
84		199
85	=item $cf::UPTIME	200	=item $cf::UPTIME
86		201
87	The timestamp of the server start (so not actually an uptime).	202	The timestamp of the server start (so not actually an "uptime").
		203
		204	=item $cf::SERVER_TICK
		205
		206	An unsigned integer that starts at zero when the server is started and is
		207	incremented on every tick.
		208
		209	=item $cf::NOW
		210
		211	The (real) time of the last (current) server tick - updated before and
		212	after tick processing, so this is useful only as a rough "what time is it
		213	now" estimate.
		214
		215	=item $cf::TICK
		216
		217	The interval between each server tick, in seconds.
88		218
89	=item $cf::RUNTIME	219	=item $cf::RUNTIME
90		220
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	221	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	222	every server tick.
93		223
94	=item $cf::LIBDIR	224	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		225	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		226	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		227
96	The perl library directory, where extensions and cf-specific modules can	228	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	229	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		230	unique-items directory, player file directory, random maps directory and
		231	database environment.
98		232
		233	=item $cf::LOADAVG
		234
		235	The current CPU load on the server (alpha-smoothed), as a value between 0
		236	(none) and 1 (overloaded), indicating how much time is spent on processing
		237	objects per tick. Healthy values are < 0.5.
		238
99	=item $cf::NOW	239	=item $cf::LOAD
100		240
101	The time of the last (current) server tick.	241	The raw value load value from the last tick.
102
103	=item $cf::TICK
104
105	The interval between server ticks, in seconds.
106		242
107	=item %cf::CFG	243	=item %cf::CFG
108		244
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	245	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	246	from wherever your confdir points to.
111		247
		248	=item cf::wait_for_tick, cf::wait_for_tick_begin
		249
		250	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		251	returns directly I<after> the tick processing (and consequently, can only wake one thread
		252	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		253
		254	Note that cf::Wait_for_tick will immediately return when the server is not
		255	ticking, making it suitable for small pauses in threads that need to run
		256	when the server is paused. If that is not applicable (i.e. you I<really>
		257	want to wait, use C<$cf::WAIT_FOR_TICK>).
		258
		259	=item $cf::WAIT_FOR_TICK
		260
		261	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		262	variable contains a L<Coro::Signal> that is broadcats after every server
		263	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		264	next server tick.
		265
		266	=cut
		267
		268	sub wait_for_tick();
		269	sub wait_for_tick_begin();
		270
		271	=item @cf::INVOKE_RESULTS
		272
		273	This array contains the results of the last C<invoke ()> call. When
		274	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		275	that call.
		276
		277	=item %cf::REFLECT
		278
		279	Contains, for each (C++) class name, a hash reference with information
		280	about object members (methods, scalars, arrays and flags) and other
		281	metadata, which is useful for introspection.
		282
112	=back	283	=back
113		284
114	=cut	285	=cut
115		286
116	BEGIN {	287	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	288	sub warn (@) { LOG llevWarn , join "", @_ }
		289	sub info (@) { LOG llevInfo , join "", @_ }
		290	sub debug(@) { LOG llevDebug, join "", @_ }
		291	sub trace(@) { LOG llevTrace, join "", @_ }
		292
		293	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	294	my $msg = join "", @_;
119	utf8::encode $msg;
120		295
121	$msg .= "\n"	296	$msg .= "\n"
122	unless $msg =~ /\n$/;	297	unless $msg =~ /\n$/;
123		298
124	LOG llevError, "cfperl: $msg";	299	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	300
126	}	301	LOG llevWarn, $msg;
		302	};
		303
		304	$Coro::State::DIEHOOK = sub {
		305	return unless $^S eq 0; # "eq", not "=="
		306
		307	error Carp::longmess $_[0];
		308
		309	if (in_main) {#d#
		310	error "DIEHOOK called in main context, Coro bug?\n";#d#
		311	return;#d#
		312	}#d#
		313
		314	# kill coroutine otherwise
		315	Coro::terminate
		316	};
127		317
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	318	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	319	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	320	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	321	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	322	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		323	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	324	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		325
135	# we bless all objects into (empty) derived classes to force a method lookup	326	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	327	# within the Safe compartment.
137	for my $pkg (qw(	328	for my $pkg (qw(
138	cf::global cf::attachable	329	cf::global cf::attachable
139	cf::object cf::object::player	330	cf::object cf::object::player
140	cf::client cf::player	331	cf::client cf::player
141	cf::arch cf::living	332	cf::arch cf::living
		333	cf::map cf::mapspace
142	cf::map cf::party cf::region	334	cf::party cf::region
143	)) {	335	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	336	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	337	}
147		338
148	$Event::DIED = sub {	339	$EV::DIED = sub {
149	warn "error in event callback: @_";	340	Carp::cluck "error in event callback: @_";
150	};	341	};
151		342
152	my %ext_pkg;	343	#############################################################################
153	my @exts;	344
154	my @hook;	345	sub fork_call(&@);
		346	sub get_slot($;$$);
		347
		348	#############################################################################
155		349
156	=head2 UTILITY FUNCTIONS	350	=head2 UTILITY FUNCTIONS
157		351
158	=over 4	352	=over 4
159		353
160	=cut	354	=item dumpval $ref
161		355
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	356	=cut
163		357
		358	sub dumpval {
		359	eval {
		360	local $SIG{__DIE__};
		361	my $d;
		362	if (1) {
		363	$d = new Data::Dumper([$_[0]], ["*var"]);
		364	$d->Terse(1);
		365	$d->Indent(2);
		366	$d->Quotekeys(0);
		367	$d->Useqq(1);
		368	#$d->Bless(...);
		369	$d->Seen($_[1]) if @_ > 1;
		370	$d = $d->Dump();
		371	}
		372	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		373	$d
		374	} || "[unable to dump $_[0]: '$@']";
		375	}
		376
		377	=item $scalar = load_file $path
		378
		379	Loads the given file from path and returns its contents. Croaks on error
		380	and can block.
		381
		382	=cut
		383
		384	sub load_file($) {
		385	0 <= aio_load $_[0], my $data
		386	or Carp::croak "$_[0]: $!";
		387
		388	$data
		389	}
		390
164	=item $ref = cf::from_json $json	391	=item $ref = cf::decode_json $json
165		392
166	Converts a JSON string into the corresponding perl data structure.	393	Converts a JSON string into the corresponding perl data structure.
167		394
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	395	=item $json = cf::encode_json $ref
176		396
177	Converts a perl data structure into its JSON representation.	397	Converts a perl data structure into its JSON representation.
178		398
179	=cut	399	=cut
180		400
181	sub to_json($) {	401	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	402
183	JSON::Syck::Dump $_[0]	403	sub encode_json($) { $json_coder->encode ($_[0]) }
		404	sub decode_json($) { $json_coder->decode ($_[0]) }
		405
		406	=item $ref = cf::decode_storable $scalar
		407
		408	Same as Coro::Storable::thaw, so blocks.
		409
		410	=cut
		411
		412	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		413
		414	=item $ref = cf::decode_yaml $scalar
		415
		416	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		417
		418	=cut
		419
		420	sub decode_yaml($) {
		421	fork_call { YAML::XS::Load $_[0] } @_
184	}	422	}
		423
		424	=item $scalar = cf::unlzf $scalar
		425
		426	Same as Compress::LZF::compress, but takes server ticks into account, so
		427	blocks.
		428
		429	=cut
		430
		431	sub unlzf($) {
		432	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		433	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		434	Compress::LZF::decompress $_[0]
		435	}
		436
		437	=item cf::post_init { BLOCK }
		438
		439	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		440	but I<before> the server starts ticking again.
		441
		442	The codeblock will have a single boolean argument to indicate whether this
		443	is a reload or not.
		444
		445	=cut
		446
		447	sub post_init(&) {
		448	push @POST_INIT, shift;
		449	}
		450
		451	sub _post_init {
		452	trace "running post_init jobs";
		453
		454	# run them in parallel...
		455
		456	my @join;
		457
		458	while () {
		459	push @join, map &Coro::async ($_, 0), @POST_INIT;
		460	@POST_INIT = ();
		461
		462	@join or last;
		463
		464	(pop @join)->join;
		465	}
		466	}
		467
		468	=item cf::lock_wait $string
		469
		470	Wait until the given lock is available. See cf::lock_acquire.
		471
		472	=item my $lock = cf::lock_acquire $string
		473
		474	Wait until the given lock is available and then acquires it and returns
		475	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		476	for example when the coroutine gets canceled), the lock is automatically
		477	returned.
		478
		479	Locks are *not* recursive, locking from the same coro twice results in a
		480	deadlocked coro.
		481
		482	Lock names should begin with a unique identifier (for example, cf::map::find
		483	uses map_find and cf::map::load uses map_load).
		484
		485	=item $locked = cf::lock_active $string
		486
		487	Return true if the lock is currently active, i.e. somebody has locked it.
		488
		489	=cut
		490
		491	our $LOCKS = new Coro::SemaphoreSet;
		492
		493	sub lock_wait($) {
		494	$LOCKS->wait ($_[0]);
		495	}
		496
		497	sub lock_acquire($) {
		498	$LOCKS->guard ($_[0])
		499	}
		500
		501	sub lock_active($) {
		502	$LOCKS->count ($_[0]) < 1
		503	}
		504
		505	sub freeze_mainloop {
		506	tick_inhibit_inc;
		507
		508	&Guard::guard (\&tick_inhibit_dec);
		509	}
		510
		511	=item cf::periodic $interval, $cb
		512
		513	Like EV::periodic, but randomly selects a starting point so that the actions
		514	get spread over time.
		515
		516	=cut
		517
		518	sub periodic($$) {
		519	my ($interval, $cb) = @_;
		520
		521	my $start = rand List::Util::min 180, $interval;
		522
		523	EV::periodic $start, $interval, 0, $cb
		524	}
		525
		526	=item cf::get_slot $time[, $priority[, $name]]
		527
		528	Allocate $time seconds of blocking CPU time at priority C<$priority>
		529	(default: 0): This call blocks and returns only when you have at least
		530	C<$time> seconds of cpu time till the next tick. The slot is only valid
		531	till the next cede.
		532
		533	Background jobs should use a priority les than zero, interactive jobs
		534	should use 100 or more.
		535
		536	The optional C<$name> can be used to identify the job to run. It might be
		537	used for statistical purposes and should identify the same time-class.
		538
		539	Useful for short background jobs.
		540
		541	=cut
		542
		543	our @SLOT_QUEUE;
		544	our $SLOT_QUEUE;
		545	our $SLOT_DECAY = 0.9;
		546
		547	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		548	$SLOT_QUEUE = Coro::async {
		549	$Coro::current->desc ("timeslot manager");
		550
		551	my $signal = new Coro::Signal;
		552	my $busy;
		553
		554	while () {
		555	next_job:
		556
		557	my $avail = cf::till_tick;
		558
		559	for (0 .. $#SLOT_QUEUE) {
		560	if ($SLOT_QUEUE[$_][0] <= $avail) {
		561	$busy = 0;
		562	my $job = splice @SLOT_QUEUE, $_, 1, ();
		563	$job->[2]->send;
		564	Coro::cede;
		565	goto next_job;
		566	} else {
		567	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		568	}
		569	}
		570
		571	if (@SLOT_QUEUE) {
		572	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		573	$WAIT_FOR_TICK->wait;
		574	} else {
		575	$busy = 0;
		576	Coro::schedule;
		577	}
		578	}
		579	};
		580
		581	sub get_slot($;$$) {
		582	return if tick_inhibit || $Coro::current == $Coro::main;
		583
		584	my ($time, $pri, $name) = @_;
		585
		586	$time = clamp $time, 0.01, $TICK * .6;
		587
		588	my $sig = new Coro::Signal;
		589
		590	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		591	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		592	$SLOT_QUEUE->ready;
		593	$sig->wait;
		594	}
		595
		596	=item cf::async { BLOCK }
		597
		598	Currently the same as Coro::async_pool, meaning you cannot use
		599	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		600	thing you are allowed to do is call C<prio> on it.
		601
		602	=cut
		603
		604	BEGIN { *async = \&Coro::async_pool }
185		605
186	=item cf::sync_job { BLOCK }	606	=item cf::sync_job { BLOCK }
187		607
188	The design of crossfire+ requires that the main coro ($Coro::main) is	608	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	609	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.	610	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		611	acceptable.
191		612
192	If it must be done, put the blocking parts into C<sync_job>. This will run	613	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	614	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	615	server will be frozen during this time, so the block should either finish
195	fast or be very important.	616	fast or be very important.
…		…
197	=cut	618	=cut
198		619
199	sub sync_job(&) {	620	sub sync_job(&) {
200	my ($job) = @_;	621	my ($job) = @_;
201		622
202	if ($Coro::current == $Coro::main) {	623	if (in_main) {
		624	my $time = AE::time;
		625
203	# this is the main coro, too bad, we have to block	626	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	627	# till the operation succeeds, freezing the server :/
205		628
206	# TODO: use suspend/resume instead	629	#LOG llevError, Carp::longmess "sync job";#d#
207	# (but this is cancel-safe)	630
208	local $FREEZE = 1;	631	my $freeze_guard = freeze_mainloop;
209		632
210	my $busy = 1;	633	my $busy = 1;
211	my @res;	634	my @res;
212		635
213	(Coro::async {	636	(async {
		637	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	638	@res = eval { $job->() };
215	warn $@ if $@;	639	error $@ if $@;
216	undef $busy;	640	undef $busy;
217	})->prio (Coro::PRIO_MAX);	641	})->prio (Coro::PRIO_MAX);
218		642
219	while ($busy) {	643	while ($busy) {
		644	if (Coro::nready) {
220	Coro::cede_notself;	645	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	646	} else {
		647	EV::loop EV::LOOP_ONESHOT;
222	}	648	}
		649	}
		650
		651	my $time = AE::time - $time;
		652
		653	$TICK_START += $time; # do not account sync jobs to server load
223		654
224	wantarray ? @res : $res[0]	655	wantarray ? @res : $res[0]
225	} else {	656	} else {
226	# we are in another coroutine, how wonderful, everything just works	657	# we are in another coroutine, how wonderful, everything just works
227		658
228	$job->()	659	$job->()
229	}	660	}
230	}	661	}
231		662
232	=item $coro = cf::coro { BLOCK }	663	=item $coro = cf::async_ext { BLOCK }
233		664
234	Creates and returns a new coro. This coro is automcatially being canceled	665	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	666	extension calling this is being unloaded.
236		667
237	=cut	668	=cut
238		669
239	sub coro(&) {	670	sub async_ext(&) {
240	my $cb = shift;	671	my $cb = shift;
241		672
242	my $coro; $coro = async {	673	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		674
249	$coro->on_destroy (sub {	675	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	676	delete $EXT_CORO{$coro+0};
251	});	677	});
252	$EXT_CORO{$coro+0} = $coro;	678	$EXT_CORO{$coro+0} = $coro;
253		679
254	$coro	680	$coro
255	}	681	}
256		682
257	sub write_runtime {	683	=item fork_call { }, @args
258	my $runtime = cf::localdir . "/runtime";
259		684
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	685	Executes the given code block with the given arguments in a seperate
261	or return;	686	process, returning the results. Everything must be serialisable with
		687	Coro::Storable. May, of course, block. Note that the executed sub may
		688	never block itself or use any form of event handling.
262		689
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	690	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		691
267	aio_fsync $fh	692	sub post_fork {
268	and return;	693	reset_signals;
		694	}
269		695
270	close $fh	696	sub fork_call(&@) {
271	or return;	697	my ($cb, @args) = @_;
272		698
273	aio_rename "$runtime~", $runtime	699	# we seemingly have to make a local copy of the whole thing,
274	and return;	700	# otherwise perl prematurely frees the stuff :/
		701	# TODO: investigate and fix (likely this will be rather laborious)
275		702
		703	my @res = Coro::Util::fork_eval {
		704	cf::post_fork;
		705	&$cb
		706	} @args;
		707
		708	wantarray ? @res : $res[-1]
		709	}
		710
		711	sub objinfo {
276	1	712	(
		713	"counter value" => cf::object::object_count,
		714	"objects created" => cf::object::create_count,
		715	"objects destroyed" => cf::object::destroy_count,
		716	"freelist size" => cf::object::free_count,
		717	"allocated objects" => cf::object::objects_size,
		718	"active objects" => cf::object::actives_size,
		719	)
		720	}
		721
		722	=item $coin = coin_from_name $name
		723
		724	=cut
		725
		726	our %coin_alias = (
		727	"silver" => "silvercoin",
		728	"silvercoin" => "silvercoin",
		729	"silvercoins" => "silvercoin",
		730	"gold" => "goldcoin",
		731	"goldcoin" => "goldcoin",
		732	"goldcoins" => "goldcoin",
		733	"platinum" => "platinacoin",
		734	"platinumcoin" => "platinacoin",
		735	"platinumcoins" => "platinacoin",
		736	"platina" => "platinacoin",
		737	"platinacoin" => "platinacoin",
		738	"platinacoins" => "platinacoin",
		739	"royalty" => "royalty",
		740	"royalties" => "royalty",
		741	);
		742
		743	sub coin_from_name($) {
		744	$coin_alias{$_[0]}
		745	? cf::arch::find $coin_alias{$_[0]}
		746	: undef
		747	}
		748
		749	=item $value = cf::db_get $family => $key
		750
		751	Returns a single value from the environment database.
		752
		753	=item cf::db_put $family => $key => $value
		754
		755	Stores the given C<$value> in the family. It can currently store binary
		756	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		757
		758	=item $db = cf::db_table "name"
		759
		760	Create and/or open a new database table. The string must not be "db" and must be unique
		761	within each server.
		762
		763	=cut
		764
		765	sub db_table($) {
		766	cf::error "db_get called from main context"
		767	if $Coro::current == $Coro::main;
		768
		769	my ($name) = @_;
		770	my $db = BDB::db_create $DB_ENV;
		771
		772	eval {
		773	$db->set_flags (BDB::CHKSUM);
		774
		775	utf8::encode $name;
		776	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		777	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		778	cf::cleanup "db_open(db): $!" if $!;
		779	};
		780	cf::cleanup "db_open(db): $@" if $@;
		781
		782	$db
		783	}
		784
		785	our $DB;
		786
		787	sub db_init {
		788	$DB ||= db_table "db";
		789	}
		790
		791	sub db_get($$) {
		792	my $key = "$_[0]/$_[1]";
		793
		794	cf::error "db_get called from main context"
		795	if $Coro::current == $Coro::main;
		796
		797	BDB::db_get $DB, undef, $key, my $data;
		798
		799	$! ? ()
		800	: $data
		801	}
		802
		803	sub db_put($$$) {
		804	BDB::dbreq_pri 4;
		805	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		806	}
		807
		808	=item cf::cache $id => [$paths...], $processversion => $process
		809
		810	Generic caching function that returns the value of the resource $id,
		811	caching and regenerating as required.
		812
		813	This function can block.
		814
		815	=cut
		816
		817	sub cache {
		818	my ($id, $src, $processversion, $process) = @_;
		819
		820	my $meta =
		821	join "\x00",
		822	$processversion,
		823	map {
		824	aio_stat $_
		825	and Carp::croak "$_: $!";
		826
		827	($_, (stat _)[7,9])
		828	} @$src;
		829
		830	my $dbmeta = db_get cache => "$id/meta";
		831	if ($dbmeta ne $meta) {
		832	# changed, we may need to process
		833
		834	my @data;
		835	my $md5;
		836
		837	for (0 .. $#$src) {
		838	$data[$_] = load_file $src->[$_];
		839	}
		840
		841	# if processing is expensive, check
		842	# checksum first
		843	if (1) {
		844	$md5 =
		845	join "\x00",
		846	$processversion,
		847	map {
		848	cf::cede_to_tick;
		849	($src->[$_], Digest::MD5::md5_hex $data[$_])
		850	} 0.. $#$src;
		851
		852
		853	my $dbmd5 = db_get cache => "$id/md5";
		854	if ($dbmd5 eq $md5) {
		855	db_put cache => "$id/meta", $meta;
		856
		857	return db_get cache => "$id/data";
		858	}
		859	}
		860
		861	my $t1 = Time::HiRes::time;
		862	my $data = $process->(\@data);
		863	my $t2 = Time::HiRes::time;
		864
		865	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		866
		867	db_put cache => "$id/data", $data;
		868	db_put cache => "$id/md5" , $md5;
		869	db_put cache => "$id/meta", $meta;
		870
		871	return $data;
		872	}
		873
		874	db_get cache => "$id/data"
		875	}
		876
		877	=item cf::datalog type => key => value, ...
		878
		879	Log a datalog packet of the given type with the given key-value pairs.
		880
		881	=cut
		882
		883	sub datalog($@) {
		884	my ($type, %kv) = @_;
		885	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	886	}
278		887
279	=back	888	=back
280		889
281	=cut	890	=cut
282		891
283	#############################################################################	892	#############################################################################
284		893
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402
403	#############################################################################
404
405	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
406		895
407	Many objects in crossfire are so-called attachable objects. That means you can	896	Many objects in deliantra are so-called attachable objects. That means you can
408	attach callbacks/event handlers (a collection of which is called an "attachment")	897	attach callbacks/event handlers (a collection of which is called an "attachment")
409	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
410		899
411	In the following description, CLASS can be any of C<global>, C<object>	900	In the following description, CLASS can be any of C<global>, C<object>
412	C<player>, C<client> or C<map> (i.e. the attachable objects in	901	C<player>, C<client> or C<map> (i.e. the attachable objects in
413	crossfire+).	902	Deliantra).
414		903
415	=over 4	904	=over 4
416		905
417	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
418		907
…		…
462	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
463		952
464	Register an attachment by C<$name> through which attachable objects of the	953	Register an attachment by C<$name> through which attachable objects of the
465	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
466		955
467	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
468	that are attached at load/instantiate time, thus the need for a name.	957	that are attached at load/instantiate time, thus the need for a name.
469		958
470	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
471		960
472	=over 4	961	=over 4
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	1021	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	1022	our @CB_MAP = ();
534		1023
535	my %attachment;	1024	my %attachment;
536		1025
		1026	sub cf::attachable::thawer_merge {
		1027	# simply override everything except _meta
		1028	local $_[0]{_meta};
		1029	%{$_[0]} = %{$_[1]};
		1030	}
		1031
537	sub _attach_cb($$$$) {	1032	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	1033	my ($registry, $event, $prio, $cb) = @_;
539		1034
540	use sort 'stable';	1035	use sort 'stable';
541		1036
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
576		1071
577	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		1076
582	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
584		1079
585	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
590		1085
591	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
592	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
593		1088
594	} elsif (ref $type) {	1089	} elsif (ref $type) {
595	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
596		1091
597	} else {	1092	} else {
598	shift @arg;	1093	shift @arg;
599	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
600	}	1095	}
601	}	1096	}
602	}	1097	}
603		1098
604	sub _object_attach {	1099	sub _object_attach {
…		…
614	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
615	}	1110	}
616		1111
617	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
618	} else {	1113	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
620	}	1115	}
621		1116
622	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
623	}	1118	}
624		1119
…		…
626	if (ref $_[0]) {	1121	if (ref $_[0]) {
627	_object_attach @_;	1122	_object_attach @_;
628	} else {	1123	} else {
629	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
630	}	1125	}
		1126	_recalc_want;
631	};	1127	};
632		1128
633	# all those should be optimised	1129	# all those should be optimised
634	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
639	reattach ($obj);	1135	reattach ($obj);
640	} else {	1136	} else {
641	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
642	}	1138	}
		1139	_recalc_want;
643	};	1140	};
644		1141
645	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
647		1144
…		…
662	";	1159	";
663	die if $@;	1160	die if $@;
664	}	1161	}
665		1162
666	our $override;	1163	our $override;
667	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1164	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
668		1165
669	sub override {	1166	sub override {
670	$override = 1;	1167	$override = 1;
671	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
672	}	1169	}
673		1170
674	sub do_invoke {	1171	sub do_invoke {
675	my $event = shift;	1172	my $event = shift;
676	my $callbacks = shift;	1173	my $callbacks = shift;
677		1174
678	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
679		1176
680	local $override;	1177	local $override;
681		1178
682	for (@$callbacks) {	1179	for (@$callbacks) {
683	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
684		1181
685	if ($@) {	1182	if ($@) {
686	warn "$@";
687	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
688	override;	1184	override;
689	}	1185	}
690		1186
691	return 1 if $override;	1187	return 1 if $override;
692	}	1188	}
693		1189
694	0	1190	0
695	}	1191	}
696		1192
697	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
698		1194
699	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
700		1196
701	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
702		1198
703	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1199	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
704	removed in future versions), and there is no public API to access override	1200	removed in future versions), and there is no public API to access override
705	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
706		1202
707	=back	1203	=back
708		1204
709	=cut	1205	=cut
710		1206
711	#############################################################################	1207	#############################################################################
712	# object support	1208	# object support
		1209
		1210	sub _object_equal($$);
		1211	sub _object_equal($$) {
		1212	my ($a, $b) = @_;
		1213
		1214	return 0 unless (ref $a) eq (ref $b);
		1215
		1216	if ("HASH" eq ref $a) {
		1217	my @ka = keys %$a;
		1218	my @kb = keys %$b;
		1219
		1220	return 0 if @ka != @kb;
		1221
		1222	for (0 .. $#ka) {
		1223	return 0 unless $ka[$_] eq $kb[$_];
		1224	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1225	}
		1226
		1227	} elsif ("ARRAY" eq ref $a) {
		1228
		1229	return 0 if @$a != @$b;
		1230
		1231	for (0 .. $#$a) {
		1232	return 0 unless _object_equal $a->[$_], $b->[$_];
		1233	}
		1234
		1235	} elsif ($a ne $b) {
		1236	return 0;
		1237	}
		1238
		1239	1
		1240	}
		1241
		1242	our $SLOW_MERGES;#d#
		1243	sub _can_merge {
		1244	my ($ob1, $ob2) = @_;
		1245
		1246	++$SLOW_MERGES;#d#
		1247
		1248	# we do the slow way here
		1249	return _object_equal $ob1, $ob2
		1250	}
713		1251
714	sub reattach {	1252	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	1254	my ($obj) = @_;
		1255
		1256	# no longer needed after getting rid of delete_package?
		1257	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1258
718	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
719		1260
720	@$registry = ();	1261	@$registry = ();
721		1262
…		…
726	for (@$attach) {	1267	for (@$attach) {
727	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
728	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
729	}	1270	}
730	} else {	1271	} else {
731	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
732	}	1273	}
733	}	1274	}
734	}	1275	}
735		1276
736	cf::attachable->attach (	1277	cf::attachable->attach (
737	prio => -1000000,	1278	prio => -1000000,
738	on_instantiate => sub {	1279	on_instantiate => sub {
739	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
740		1281
741	$data = from_json $data;	1282	$data = decode_json $data;
742		1283
743	for (@$data) {	1284	for (@$data) {
744	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
745		1286
746	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1303	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
764		1305
765	sync_job {	1306	sync_job {
766	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
769		1312
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1315	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1316	if ($cf::USE_FSYNC) {
		1317	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;
773	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
774	close $fh;	1320	aio_close $fh;
775		1321
776	if (@$objs) {	1322	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1323	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1326	aio_write $fh, 0, (length $data), $data, 0;
		1327	if ($cf::USE_FSYNC) {
		1328	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;
781	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
782	close $fh;	1331	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
784	}	1333	}
785	} else {	1334	} else {
786	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
787	}	1336	}
788		1337
789	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1342	} else {
791	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
792	}	1344	}
793	} else {	1345	} else {
794	aio_unlink $filename;	1346	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
796	}	1348	}
797	}	1349	};
798	}	1350	}
799		1351
800	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
802		1354
…		…
814	or return;	1366	or return;
815		1367
816	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
818	or return;	1370	or return;
		1371
819	$av = eval { (Storable::thaw $av)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
820	}	1374	}
821		1375
		1376	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1377	trace sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
824	return ($data, $av);	1381	($data, $av)
825	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
826		1389
827	#############################################################################	1390	#############################################################################
828	# command handling &c	1391	# command handling &c
829		1392
830	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1407	}
845		1408
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1410
848	Register a callbackf ro execution when the client sends an extcmd packet.	1411	Register a callback for execution when the client sends an (synchronous)
		1412	extcmd packet. Ext commands will be processed in the order they are
		1413	received by the server, like other user commands. The first argument is
		1414	the logged-in player. Ext commands can only be processed after a player
		1415	has logged in successfully.
849		1416
850	If the callback returns something, it is sent back as if reply was being	1417	If the callback returns something, it is sent back as if reply was being
851	called.	1418	called.
852		1419
		1420	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1421
		1422	Register a callback for execution when the client sends an (asynchronous)
		1423	exticmd packet. Exti commands are processed by the server as soon as they
		1424	are received, i.e. out of order w.r.t. other commands. The first argument
		1425	is a client socket. Exti commands can be received anytime, even before
		1426	log-in.
		1427
		1428	If the callback returns something, it is sent back as if reply was being
		1429	called.
		1430
853	=cut	1431	=cut
854		1432
855	sub register_extcmd {	1433	sub register_extcmd {
856	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
857		1435
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	1436	$EXTCMD{$name} = $cb;
862	}	1437	}
		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
863		1446
864	cf::player->attach (	1447	cf::player->attach (
865	on_command => sub {	1448	on_unknown_command => sub {
866	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
867		1450
868	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
869	or return;	1452	or return;
870		1453
…		…
875	cf::override;	1458	cf::override;
876	},	1459	},
877	on_extcmd => sub {	1460	on_extcmd => sub {
878	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
879		1462
880	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
881		1464
882	if (ref $msg) {	1465	if (ref $msg) {
		1466	my ($type, $reply, @payload) =
		1467	"ARRAY" eq ref $msg
		1468	? @$msg
		1469	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1470
		1471	my @reply;
		1472
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1473	if (my $cb = $EXTCMD{$type}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	1474	@reply = $cb->($pl, @payload);
885	$pl->ext_reply ($msg->{msgid}, %reply);
886	}
887	}	1475	}
		1476
		1477	$pl->ext_reply ($reply, @reply)
		1478	if $reply;
		1479
888	} else {	1480	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1481	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
890	}	1482	}
891		1483
892	cf::override;	1484	cf::override;
893	},	1485	},
894	);	1486	);
895		1487
896	sub register {	1488	# "readahead" all extensions
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	1489	sub cache_extensions {
903	my ($path) = @_;	1490	my $grp = IO::AIO::aio_group;
904		1491
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1492	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
906	my $base = $1;	1493	for (grep /\.ext$/, @{$_[0]}) {
907	my $pkg = $1;	1494	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
908	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";
910
911	warn "loading '$path' into '$pkg'\n";
912
913	open my $fh, "<:utf8", $path
914	or die "$path: $!";
915
916	my $source =
917	"package $pkg; use strict; use utf8;\n"
918	. "#line 1 \"$path\"\n{\n"
919	. (do { local $/; <$fh> })
920	. "\n};\n1";
921
922	eval $source
923	or die $@ ? "$path: $@\n"
924	: "extension disabled.\n";
925
926	push @exts, $pkg;
927	$ext_pkg{$base} = $pkg;
928
929	# no strict 'refs';
930	# @{"$pkg\::ISA"} = ext::;
931
932	register $base, $pkg;
933	}
934
935	sub unload_extension {
936	my ($pkg) = @_;
937
938	warn "removing extension $pkg\n";
939
940	# remove hooks
941	#TODO
942	# for my $idx (0 .. $#PLUGIN_EVENT) {
943	# delete $hook[$idx]{$pkg};
944	# }
945
946	# remove commands
947	for my $name (keys %COMMAND) {
948	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950	if (@cb) {
951	$COMMAND{$name} = \@cb;
952	} else {
953	delete $COMMAND{$name};
954	}	1495	}
955	}	1496	};
956		1497
957	# remove extcmds	1498	$grp
958	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959	delete $EXTCMD{$name};
960	}
961
962	if (my $cb = $pkg->can ("unload")) {
963	eval {
964	$cb->($pkg);
965	1
966	} or warn "$pkg unloaded, but with errors: $@";
967	}
968
969	Symbol::delete_package $pkg;
970	}	1499	}
971		1500
972	sub load_extensions {	1501	sub load_extensions {
		1502	info "loading extensions...";
		1503
		1504	cf::sync_job {
		1505	my %todo;
		1506
973	for my $ext (<$LIBDIR/*.ext>) {	1507	for my $path (<$LIBDIR/*.ext>) {
974	next unless -r $ext;	1508	next unless -r $path;
975	eval {	1509
976	load_extension $ext;	1510	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1511	my $base = $1;
		1512	my $pkg = $1;
		1513	$pkg =~ s/[^[:word:]]/_/g;
		1514	$pkg = "ext::$pkg";
		1515
		1516	open my $fh, "<:utf8", $path
		1517	or die "$path: $!";
		1518
		1519	my $source = do { local $/; <$fh> };
		1520
		1521	my %ext = (
		1522	path => $path,
		1523	base => $base,
		1524	pkg => $pkg,
		1525	);
		1526
		1527	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1528	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1529
		1530	$ext{source} =
		1531	"package $pkg; use common::sense;\n"
		1532	. "#line 1 \"$path\"\n{\n"
		1533	. $source
		1534	. "\n};\n1";
		1535
		1536	$todo{$base} = \%ext;
		1537	}
		1538
		1539	my $pass = 0;
		1540	my %done;
		1541	while (%todo) {
		1542	my $progress;
		1543
		1544	++$pass;
		1545
		1546	ext:
		1547	while (my ($k, $v) = each %todo) {
		1548	for (split /,\s*/, $v->{meta}{depends}) {
		1549	next ext
		1550	unless exists $done{$_};
		1551	}
		1552
		1553	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1554
		1555	my $active = eval $v->{source};
		1556
		1557	if (length $@) {
		1558	error "$v->{path}: $@\n";
		1559
		1560	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1561	if exists $v->{meta}{mandatory};
		1562
		1563	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1564	delete $todo{$k};
		1565	} else {
		1566	$done{$k} = delete $todo{$k};
		1567	push @EXTS, $v->{pkg};
		1568	$progress = 1;
		1569
		1570	info "$v->{base}: extension inactive.\n"
		1571	unless $active;
		1572	}
977	1	1573	}
978	} or warn "$ext not loaded: $@";	1574
		1575	unless ($progress) {
		1576	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1577
		1578	while (my ($k, $v) = each %todo) {
		1579	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1580	if exists $v->{meta}{mandatory};
		1581	}
		1582
		1583	last;
		1584	}
		1585	}
979	}	1586	};
980	}	1587	}
981		1588
982	#############################################################################	1589	#############################################################################
983	# load/save/clean perl data associated with a map
984		1590
985	*cf::mapsupport::on_clean = sub {	1591	=back
		1592
		1593	=head2 CORE EXTENSIONS
		1594
		1595	Functions and methods that extend core deliantra objects.
		1596
		1597	=cut
		1598
		1599	package cf::player;
		1600
		1601	use Coro::AIO;
		1602
		1603	=head3 cf::player
		1604
		1605	=over 4
		1606
		1607	=item cf::player::num_playing
		1608
		1609	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1610
		1611	=cut
		1612
		1613	sub num_playing {
		1614	scalar grep
		1615	$_->ob->map
		1616	&& !$_->hidden
		1617	&& !$_->ob->flag (cf::FLAG_WIZ),
		1618	cf::player::list
		1619	}
		1620
		1621	=item cf::player::find $login
		1622
		1623	Returns the given player object, loading it if necessary (might block).
		1624
		1625	=cut
		1626
		1627	sub playerdir($) {
		1628	"$PLAYERDIR/"
		1629	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1630	}
		1631
		1632	sub path($) {
		1633	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1634
		1635	(playerdir $login) . "/playerdata"
		1636	}
		1637
		1638	sub find_active($) {
		1639	$cf::PLAYER{$_[0]}
		1640	and $cf::PLAYER{$_[0]}->active
		1641	and $cf::PLAYER{$_[0]}
		1642	}
		1643
		1644	sub exists($) {
986	my ($map) = @_;	1645	my ($login) = @_;
987		1646
988	my $path = $map->tmpname;	1647	$cf::PLAYER{$login}
989	defined $path or return;	1648	or !aio_stat path $login
990
991	unlink "$path.pst";
992	};
993
994	cf::map->attach (prio => -10000, package => cf::mapsupport::);
995
996	#############################################################################
997	# load/save perl data associated with player->ob objects
998
999	sub all_objects(@) {
1000	@_, map all_objects ($_->inv), @_
1001	}	1649	}
1002		1650
1003	# TODO: compatibility cruft, remove when no longer needed	1651	sub find($) {
		1652	return $cf::PLAYER{$_[0]} || do {
		1653	my $login = $_[0];
		1654
		1655	my $guard = cf::lock_acquire "user_find:$login";
		1656
		1657	$cf::PLAYER{$_[0]} || do {
		1658	# rename old playerfiles to new ones
		1659	#TODO: remove when no longer required
		1660	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1661	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1662	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1663	aio_unlink +(playerdir $login) . "/$login.pl";
		1664
		1665	my $f = new_from_file cf::object::thawer path $login
		1666	or return;
		1667
		1668	my $pl = cf::player::load_pl $f
		1669	or return;
		1670
		1671	local $cf::PLAYER_LOADING{$login} = $pl;
		1672	$f->resolve_delayed_derefs;
		1673	$cf::PLAYER{$login} = $pl
		1674	}
		1675	}
		1676	}
		1677
1004	cf::player->attach (	1678	cf::player->attach (
1005	on_load => sub {	1679	on_load => sub {
1006	my ($pl, $path) = @_;	1680	my ($pl, $path) = @_;
1007		1681
1008	for my $o (all_objects $pl->ob) {	1682	# restore slots saved in save, below
1009	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1683	my $slots = delete $pl->{_slots};
1010	$o->set_ob_key_value ("_perl_data");
1011		1684
1012	%$o = %{ Storable::thaw pack "H*", $value };	1685	$pl->ob->current_weapon ($slots->[0]);
1013	}	1686	$pl->combat_ob ($slots->[1]);
1014	}	1687	$pl->ranged_ob ($slots->[2]);
1015	},	1688	},
1016	);	1689	);
1017		1690
1018	#############################################################################	1691	sub save($) {
		1692	my ($pl) = @_;
1019		1693
1020	=head2 CORE EXTENSIONS	1694	return if $pl->{deny_save};
1021		1695
1022	Functions and methods that extend core crossfire objects.	1696	my $path = path $pl;
		1697	my $guard = cf::lock_acquire "user_save:$path";
1023		1698
1024	=head3 cf::player	1699	return if $pl->{deny_save};
		1700
		1701	aio_mkdir playerdir $pl, 0770;
		1702	$pl->{last_save} = $cf::RUNTIME;
		1703
		1704	cf::get_slot 0.01;
		1705
		1706	# save slots, to be restored later
		1707	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1708
		1709	$pl->save_pl ($path);
		1710	cf::cede_to_tick;
		1711	}
		1712
		1713	sub new($) {
		1714	my ($login) = @_;
		1715
		1716	my $self = create;
		1717
		1718	$self->ob->name ($login);
		1719	$self->{deny_save} = 1;
		1720
		1721	$cf::PLAYER{$login} = $self;
		1722
		1723	$self
		1724	}
		1725
		1726	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1727
		1728	=cut
		1729
		1730	sub send_msg {
		1731	my $ns = shift->ns
		1732	or return;
		1733	$ns->send_msg (@_);
		1734	}
		1735
		1736	=item $pl->quit_character
		1737
		1738	Nukes the player without looking back. If logged in, the connection will
		1739	be destroyed. May block for a long time.
		1740
		1741	=cut
		1742
		1743	sub quit_character {
		1744	my ($pl) = @_;
		1745
		1746	my $name = $pl->ob->name;
		1747
		1748	$pl->{deny_save} = 1;
		1749	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1750
		1751	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1752	$pl->deactivate;
		1753
		1754	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1755	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1756	ext::highscore::check ($pl->ob);
		1757
		1758	$pl->ns->destroy if $pl->ns;
		1759
		1760	my $path = playerdir $pl;
		1761	my $temp = "$path~$cf::RUNTIME~deleting~";
		1762	aio_rename $path, $temp;
		1763	delete $cf::PLAYER{$pl->ob->name};
		1764	$pl->destroy;
		1765
		1766	my $prefix = qr<^~\Q$name\E/>;
		1767
		1768	# nuke player maps
		1769	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1770
		1771	IO::AIO::aio_rmtree $temp;
		1772	}
		1773
		1774	=item $pl->kick
		1775
		1776	Kicks a player out of the game. This destroys the connection.
		1777
		1778	=cut
		1779
		1780	sub kick {
		1781	my ($pl, $kicker) = @_;
		1782
		1783	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1784	$pl->killer ("kicked");
		1785	$pl->ns->destroy;
		1786	}
		1787
		1788	=item cf::player::list_logins
		1789
		1790	Returns am arrayref of all valid playernames in the system, can take a
		1791	while and may block, so not sync_job-capable, ever.
		1792
		1793	=cut
		1794
		1795	sub list_logins {
		1796	my $dirs = aio_readdir $PLAYERDIR
		1797	or return [];
		1798
		1799	my @logins;
		1800
		1801	for my $login (@$dirs) {
		1802	my $path = path $login;
		1803
		1804	# a .pst is a dead give-away for a valid player
		1805	# if no pst file found, open and chekc for blocked users
		1806	if (aio_stat "$path.pst") {
		1807	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1808	aio_read $fh, 0, 512, my $buf, 0 or next;
		1809	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1810	}
		1811
		1812	utf8::decode $login;
		1813	push @logins, $login;
		1814	}
		1815
		1816	\@logins
		1817	}
		1818
		1819	=item $player->maps
		1820
		1821	=item cf::player::maps $login
		1822
		1823	Returns an arrayref of map paths that are private for this
		1824	player. May block.
		1825
		1826	=cut
		1827
		1828	sub maps($) {
		1829	my ($pl) = @_;
		1830
		1831	$pl = ref $pl ? $pl->ob->name : $pl;
		1832
		1833	my $files = aio_readdir playerdir $pl
		1834	or return;
		1835
		1836	my @paths;
		1837
		1838	for (@$files) {
		1839	utf8::decode $_;
		1840	next if /\.(?:pl|pst)$/;
		1841	next unless /^$PATH_SEP/o;
		1842
		1843	push @paths, cf::map::normalise "~$pl/$_";
		1844	}
		1845
		1846	\@paths
		1847	}
		1848
		1849	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1850
		1851	Expand deliantra pod fragments into protocol xml.
		1852
		1853	=item $player->ext_reply ($msgid, @msg)
		1854
		1855	Sends an ext reply to the player.
		1856
		1857	=cut
		1858
		1859	sub ext_reply($$@) {
		1860	my ($self, $id, @msg) = @_;
		1861
		1862	$self->ns->ext_reply ($id, @msg)
		1863	}
		1864
		1865	=item $player->ext_msg ($type, @msg)
		1866
		1867	Sends an ext event to the client.
		1868
		1869	=cut
		1870
		1871	sub ext_msg($$@) {
		1872	my ($self, $type, @msg) = @_;
		1873
		1874	$self->ns->ext_msg ($type, @msg);
		1875	}
		1876
		1877	=head3 cf::region
1025		1878
1026	=over 4	1879	=over 4
1027		1880
1028	=item cf::player::exists $login
1029
1030	Returns true when the given account exists.
1031
1032	=cut	1881	=cut
1033		1882
1034	sub cf::player::exists($) {	1883	package cf::region;
1035	cf::player::find $_[0]
1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1037	}
1038		1884
1039	=item $player->ext_reply ($msgid, $msgtype, %msg)	1885	=item cf::region::find_by_path $path
1040		1886
1041	Sends an ext reply to the player.	1887	Tries to decuce the likely region for a map knowing only its path.
1042		1888
1043	=cut	1889	=cut
1044		1890
1045	sub cf::player::ext_reply($$$%) {	1891	sub find_by_path($) {
1046	my ($self, $id, %msg) = @_;	1892	my ($path) = @_;
1047		1893
1048	$msg{msgid} = $id;	1894	$path =~ s/^~[^\/]*//; # skip ~login
1049		1895
1050	$self->send ("ext " . to_json \%msg);	1896	my ($match, $specificity);
		1897
		1898	for my $region (list) {
		1899	if ($region->{match} && $path =~ $region->{match}) {
		1900	($match, $specificity) = ($region, $region->specificity)
		1901	if $region->specificity > $specificity;
		1902	}
		1903	}
		1904
		1905	$match
1051	}	1906	}
1052		1907
1053	=back	1908	=back
1054
1055		1909
1056	=head3 cf::map	1910	=head3 cf::map
1057		1911
1058	=over 4	1912	=over 4
1059		1913
…		…
1062	package cf::map;	1916	package cf::map;
1063		1917
1064	use Fcntl;	1918	use Fcntl;
1065	use Coro::AIO;	1919	use Coro::AIO;
1066		1920
		1921	use overload
		1922	'""' => \&as_string,
		1923	fallback => 1;
		1924
1067	our $MAX_RESET = 7200;	1925	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1926	our $DEFAULT_RESET = 3000;
1069		1927
1070	sub generate_random_map {	1928	sub generate_random_map {
		1929	my ($self, $rmp) = @_;
		1930
		1931	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1932
		1933	$self->_create_random_map ($rmp);
		1934	}
		1935
		1936	=item cf::map->register ($regex, $prio)
		1937
		1938	Register a handler for the map path matching the given regex at the
		1939	givne priority (higher is better, built-in handlers have priority 0, the
		1940	default).
		1941
		1942	=cut
		1943
		1944	sub register {
		1945	my (undef, $regex, $prio) = @_;
		1946	my $pkg = caller;
		1947
		1948	push @{"$pkg\::ISA"}, __PACKAGE__;
		1949
		1950	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1951	}
		1952
		1953	# also paths starting with '/'
		1954	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1955
		1956	sub thawer_merge {
		1957	my ($self, $merge) = @_;
		1958
		1959	# we have to keep some variables in memory intact
		1960	local $self->{path};
		1961	local $self->{load_path};
		1962
		1963	$self->SUPER::thawer_merge ($merge);
		1964	}
		1965
		1966	sub normalise {
1071	my ($path, $rmp) = @_;	1967	my ($path, $base) = @_;
1072		1968
1073	# mit "rum" bekleckern, nicht	1969	$path = "$path"; # make sure it's a string
1074	cf::map::_create_random_map	1970
		1971	$path =~ s/\.map$//;
		1972
		1973	# map plan:
		1974	#
		1975	# /! non-realised random map exit (special hack!)
		1976	# {... are special paths that are not being touched
		1977	# ?xxx/... are special absolute paths
		1978	# ?random/... random maps
		1979	# /... normal maps
		1980	# ~user/... per-player map of a specific user
		1981
		1982	$path =~ s/$PATH_SEP/\//go;
		1983
		1984	# treat it as relative path if it starts with
		1985	# something that looks reasonable
		1986	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1987	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1988
		1989	$base =~ s{[^/]+/?$}{};
		1990	$path = "$base/$path";
		1991	}
		1992
		1993	for ($path) {
		1994	redo if s{/\.?/}{/};
		1995	redo if s{/[^/]+/\.\./}{/};
		1996	}
		1997
1075	$path,	1998	$path
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(cf::region::find $rmp->{region})
1087	}	1999	}
1088		2000
1089	# and all this just because we cannot iterate over	2001	sub new_from_path {
1090	# all maps in C++...	2002	my (undef, $path, $base) = @_;
1091	sub change_all_map_light {	2003
		2004	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2005
		2006	$path = normalise $path, $base;
		2007
		2008	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2009	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2010	my $self = bless cf::map::new, $pkg;
		2011	$self->{path} = $path; $self->path ($path);
		2012	$self->init; # pass $1 etc.
		2013	return $self;
		2014	}
		2015	}
		2016
		2017	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2018	()
		2019	}
		2020
		2021	# may re-bless or do other evil things
		2022	sub init {
1092	my ($change) = @_;	2023	my ($self) = @_;
1093		2024
1094	$_->change_map_light ($change) for values %cf::MAP;	2025	$self
1095	}	2026	}
1096		2027
		2028	sub as_string {
		2029	my ($self) = @_;
		2030
		2031	"$self->{path}"
		2032	}
		2033
		2034	# the displayed name, this is a one way mapping
		2035	sub visible_name {
		2036	&as_string
		2037	}
		2038
		2039	# the original (read-only) location
		2040	sub load_path {
		2041	my ($self) = @_;
		2042
		2043	"$MAPDIR/$self->{path}.map"
		2044	}
		2045
		2046	# the temporary/swap location
		2047	sub save_path {
		2048	my ($self) = @_;
		2049
		2050	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2051	"$TMPDIR/$path.map"
		2052	}
		2053
		2054	# the unique path, undef == no special unique path
		2055	sub uniq_path {
		2056	my ($self) = @_;
		2057
		2058	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2059	"$UNIQUEDIR/$path"
		2060	}
		2061
		2062	sub decay_objects {
		2063	my ($self) = @_;
		2064
		2065	return if $self->{deny_reset};
		2066
		2067	$self->do_decay_objects;
		2068	}
		2069
		2070	sub unlink_save {
		2071	my ($self) = @_;
		2072
		2073	utf8::encode (my $save = $self->save_path);
		2074	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2075	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2076	}
		2077
1097	sub try_load_header($) {	2078	sub load_header_from($) {
1098	my ($path) = @_;	2079	my ($self, $path) = @_;
1099		2080
1100	utf8::encode $path;	2081	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	2082	my $f = new_from_file cf::object::thawer $path
1102	or return;	2083	or return;
1103		2084
1104	my $map = cf::map::new	2085	$self->_load_header ($f)
1105	or return;	2086	or return;
1106		2087
1107	$map->load_header ($path)	2088	local $MAP_LOADING{$self->{path}} = $self;
		2089	$f->resolve_delayed_derefs;
		2090
		2091	$self->{load_path} = $path;
		2092
		2093	1
		2094	}
		2095
		2096	# used to laod the header of an original map
		2097	sub load_header_orig {
		2098	my ($self) = @_;
		2099
		2100	$self->load_header_from ($self->load_path)
		2101	}
		2102
		2103	# used to laod the header of an instantiated map
		2104	sub load_header_temp {
		2105	my ($self) = @_;
		2106
		2107	$self->load_header_from ($self->save_path)
		2108	}
		2109
		2110	# called after loading the header from an instantiated map
		2111	sub prepare_temp {
		2112	my ($self) = @_;
		2113
		2114	$self->last_access ((delete $self->{last_access})
		2115	|| $cf::RUNTIME); #d#
		2116	# safety
		2117	$self->{instantiate_time} = $cf::RUNTIME
		2118	if $self->{instantiate_time} > $cf::RUNTIME;
		2119	}
		2120
		2121	# called after loading the header from an original map
		2122	sub prepare_orig {
		2123	my ($self) = @_;
		2124
		2125	$self->{load_original} = 1;
		2126	$self->{instantiate_time} = $cf::RUNTIME;
		2127	$self->last_access ($cf::RUNTIME);
		2128	$self->instantiate;
		2129	}
		2130
		2131	sub load_header {
		2132	my ($self) = @_;
		2133
		2134	if ($self->load_header_temp) {
		2135	$self->prepare_temp;
		2136	} else {
		2137	$self->load_header_orig
1108	or return;	2138	or return;
		2139	$self->prepare_orig;
		2140	}
1109		2141
1110	$map->{load_path} = $path;	2142	$self->{deny_reset} = 1
		2143	if $self->no_reset;
1111		2144
1112	$map	2145	$self->default_region (cf::region::find_by_path $self->{path})
1113	}	2146	unless $self->default_region;
1114		2147
		2148	1
		2149	}
		2150
		2151	sub find;
1115	sub find_map {	2152	sub find {
1116	my ($path, $origin) = @_;	2153	my ($path, $origin) = @_;
1117		2154
1118	#warn "find_map<$path,$origin>\n";#d#	2155	cf::cede_to_tick;
1119		2156
1120	$path = new cf::path $path, $origin && $origin->path;	2157	$path = normalise $path, $origin;
1121	my $key = $path->as_string;
1122		2158
		2159	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2160	my $guard2 = cf::lock_acquire "map_find:$path";
		2161
1123	$cf::MAP{$key} || do {	2162	$cf::MAP{$path} || do {
1124	# do it the slow way	2163	my $map = new_from_path cf::map $path
1125	my $map = try_load_header $path->save_path;
1126
1127	if ($map) {
1128	# safety
1129	$map->{instantiate_time} = $cf::RUNTIME
1130	if $map->{instantiate_time} > $cf::RUNTIME;
1131	} else {
1132	if (my $rmp = $path->random_map_params) {
1133	$map = generate_random_map $key, $rmp;
1134	} else {
1135	$map = try_load_header $path->load_path;
1136	}
1137
1138	$map or return;	2164	or return;
1139		2165
1140	$map->{load_original} = 1;
1141	$map->{instantiate_time} = $cf::RUNTIME;
1142	$map->instantiate;
1143
1144	# per-player maps become, after loading, normal maps
1145	$map->per_player (0) if $path->{user_rel};
1146	}
1147	#Coro::Timer::sleep 1;#d#
1148
1149	$map->path ($key);
1150	$map->{path} = $path;
1151	$map->{last_save} = $cf::RUNTIME;	2166	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		2167
1154	if ($map->should_reset) {	2168	$map->load_header
		2169	or return;
		2170
		2171	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2172	# doing this can freeze the server in a sync job, obviously
		2173	#$cf::WAIT_FOR_TICK->wait;
		2174	undef $guard2;
		2175	undef $guard1;
1155	$map->reset;	2176	$map->reset;
1156	$map = find_map $path;	2177	return find $path;
1157	}	2178	}
1158		2179
1159	$cf::MAP{$key} = $map	2180	$cf::MAP{$path} = $map
1160	}	2181	}
1161	}	2182	}
		2183
		2184	sub pre_load { }
		2185	#sub post_load { } # XS
1162		2186
1163	sub load {	2187	sub load {
1164	my ($self) = @_;	2188	my ($self) = @_;
1165		2189
1166	return if $self->in_memory != cf::MAP_SWAPPED;	2190	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		2191
1170	my $path = $self->{path};	2192	my $path = $self->{path};
1171		2193
		2194	{
		2195	my $guard = cf::lock_acquire "map_data:$path";
		2196
		2197	return unless $self->valid;
		2198	return unless $self->state == cf::MAP_SWAPPED;
		2199
1172	$self->alloc;	2200	$self->alloc;
1173	$self->load_objects ($self->{load_path}, 1)	2201
		2202	$self->pre_load;
		2203	cf::cede_to_tick;
		2204
		2205	if (exists $self->{load_path}) {
		2206	my $f = new_from_file cf::object::thawer $self->{load_path};
		2207	$f->skip_block;
		2208	$self->_load_objects ($f)
1174	or return;	2209	or return;
1175		2210
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2211	$self->post_load_original
1177	if delete $self->{load_original};	2212	if delete $self->{load_original};
1178		2213
1179	if (my $uniq = $path->uniq_path) {	2214	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	2215	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	2216	unless (aio_stat $uniq) {
		2217	if (my $f = new_from_file cf::object::thawer $uniq) {
1182	$self->clear_unique_items;	2218	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	2219	$self->_load_objects ($f);
		2220	$f->resolve_delayed_derefs;
		2221	}
		2222	}
1184	}	2223	}
1185	}
1186		2224
		2225	$f->resolve_delayed_derefs;
		2226	} else {
		2227	$self->post_load_original
		2228	if delete $self->{load_original};
		2229	}
		2230
		2231	$self->state (cf::MAP_INACTIVE);
		2232
		2233	cf::cede_to_tick;
1187	# now do the right thing for maps	2234	# now do the right thing for maps
1188	$self->link_multipart_objects;	2235	$self->link_multipart_objects;
1189
1190	if ($self->{path}->is_style_map) {
1191	$self->{deny_save} = 1;
1192	$self->{deny_reset} = 1;
1193	} else {
1194	$self->fix_auto_apply;
1195	$self->decay_objects;
1196	$self->update_buttons;
1197	$self->set_darkness_map;
1198	$self->difficulty ($self->estimate_difficulty)	2236	$self->difficulty ($self->estimate_difficulty)
1199	unless $self->difficulty;	2237	unless $self->difficulty;
1200	$self->activate;	2238	cf::cede_to_tick;
		2239
		2240	unless ($self->{deny_activate}) {
		2241	$self->decay_objects;
		2242	$self->fix_auto_apply;
		2243	$self->update_buttons;
		2244	cf::cede_to_tick;
		2245	#$self->activate; # no longer activate maps automatically
		2246	}
		2247
		2248	$self->{last_save} = $cf::RUNTIME;
		2249	$self->last_access ($cf::RUNTIME);
		2250	}
		2251
		2252	$self->post_load;
		2253
1201	}	2254	1
1202
1203	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	2255	}
1205		2256
1206	sub load_map_sync {	2257	# customize the map for a given player, i.e.
		2258	# return the _real_ map. used by e.g. per-player
		2259	# maps to change the path to ~playername/mappath
		2260	sub customise_for {
		2261	my ($self, $ob) = @_;
		2262
		2263	return find "~" . $ob->name . "/" . $self->{path}
		2264	if $self->per_player;
		2265
		2266	# return find "?party/" . $ob->name . "/" . $self->{path}
		2267	# if $self->per_party;
		2268
		2269	$self
		2270	}
		2271
		2272	sub find_sync {
1207	my ($path, $origin) = @_;	2273	my ($path, $origin) = @_;
1208		2274
1209	#warn "load_map_sync<$path, $origin>\n";#d#	2275	# it's a bug to call this from the main context
		2276	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2277	if $Coro::current == $Coro::main;
1210		2278
1211	cf::sync_job {	2279	find $path, $origin
1212	my $map = cf::map::find_map $path, $origin	2280	}
1213	or return;	2281
		2282	sub do_load_sync {
		2283	my ($map) = @_;
		2284
		2285	# it's a bug to call this from the main context
		2286	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2287	if $Coro::current == $Coro::main;
		2288
1214	$map->load;	2289	$map->load;
1215	$map	2290	}
		2291
		2292	our %MAP_PREFETCH;
		2293	our $MAP_PREFETCHER = undef;
		2294
		2295	sub find_async {
		2296	my ($path, $origin, $load) = @_;
		2297
		2298	$path = normalise $path, $origin;
		2299
		2300	if (my $map = $cf::MAP{$path}) {
		2301	return $map if !$load || $map->linkable;
		2302	}
		2303
		2304	$MAP_PREFETCH{$path} |= $load;
		2305
		2306	$MAP_PREFETCHER ||= cf::async {
		2307	$Coro::current->{desc} = "map prefetcher";
		2308
		2309	while (%MAP_PREFETCH) {
		2310	while (my ($k, $v) = each %MAP_PREFETCH) {
		2311	if (my $map = find $k) {
		2312	$map->load if $v;
		2313	}
		2314
		2315	delete $MAP_PREFETCH{$k};
		2316	}
		2317	}
		2318	undef $MAP_PREFETCHER;
		2319	};
		2320	$MAP_PREFETCHER->prio (6);
		2321
		2322	()
		2323	}
		2324
		2325	# common code, used by both ->save and ->swapout
		2326	sub _save {
		2327	my ($self) = @_;
		2328
		2329	$self->{last_save} = $cf::RUNTIME;
		2330
		2331	return unless $self->dirty;
		2332
		2333	my $save = $self->save_path; utf8::encode $save;
		2334	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2335
		2336	$self->{load_path} = $save;
		2337
		2338	return if $self->{deny_save};
		2339
		2340	local $self->{last_access} = $self->last_access;#d#
		2341
		2342	cf::async {
		2343	$Coro::current->{desc} = "map player save";
		2344	$_->contr->save for $self->players;
		2345	};
		2346
		2347	cf::get_slot 0.02;
		2348
		2349	if ($uniq) {
		2350	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2351	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2352	} else {
		2353	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	2354	}
1217	}	2355	}
1218		2356
1219	sub save {	2357	sub save {
1220	my ($self) = @_;	2358	my ($self) = @_;
1221		2359
1222	$self->{last_save} = $cf::RUNTIME;	2360	my $lock = cf::lock_acquire "map_data:$self->{path}";
1223		2361
1224	return unless $self->dirty;	2362	$self->_save;
1225
1226	my $save = $self->{path}->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1228
1229	$self->{load_path} = $save;
1230
1231	return if $self->{deny_save};
1232
1233	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}
1239	}	2363	}
1240		2364
1241	sub swap_out {	2365	sub swap_out {
1242	my ($self) = @_;	2366	my ($self) = @_;
1243		2367
		2368	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2369
		2370	return if !$self->linkable;
		2371	return if $self->{deny_save};
1244	return if $self->players;	2372	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};
1247		2373
		2374	# first deactivate the map and "unlink" it from the core
		2375	$self->deactivate;
		2376	$_->clear_links_to ($self) for values %cf::MAP;
		2377	$self->state (cf::MAP_SWAPPED);
		2378
		2379	# then atomically save
1248	$self->save;	2380	$self->_save;
		2381
		2382	# then free the map
1249	$self->clear;	2383	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);
1251	}	2384	}
1252		2385
1253	sub reset_at {	2386	sub reset_at {
1254	my ($self) = @_;	2387	my ($self) = @_;
1255		2388
1256	# TODO: safety, remove and allow resettable per-player maps	2389	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};
1258	return 1e99 if $self->{deny_reset};	2390	return 1e99 if $self->{deny_reset};
1259		2391
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2392	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2393	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		2394
…		…
1267	my ($self) = @_;	2399	my ($self) = @_;
1268		2400
1269	$self->reset_at <= $cf::RUNTIME	2401	$self->reset_at <= $cf::RUNTIME
1270	}	2402	}
1271		2403
1272	sub unlink_save {
1273	my ($self) = @_;
1274
1275	utf8::encode (my $save = $self->{path}->save_path);
1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1278	}
1279
1280	sub rename {
1281	my ($self, $new_path) = @_;
1282
1283	$self->unlink_save;
1284
1285	delete $cf::MAP{$self->path};
1286	$self->{path} = new cf::path $new_path;
1287	$self->path ($self->{path}->as_string);
1288	$cf::MAP{$self->path} = $self;
1289
1290	$self->save;
1291	}
1292
1293	sub reset {	2404	sub reset {
1294	my ($self) = @_;	2405	my ($self) = @_;
1295		2406
		2407	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2408
1296	return if $self->players;	2409	return if $self->players;
1297	return if $self->{path}{user_rel};#d#
1298		2410
1299	warn "resetting map ", $self->path;#d#	2411	cf::trace "resetting map ", $self->path, "\n";
		2412
		2413	$self->state (cf::MAP_SWAPPED);
		2414
		2415	# need to save uniques path
		2416	unless ($self->{deny_save}) {
		2417	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2418
		2419	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2420	if $uniq;
		2421	}
1300		2422
1301	delete $cf::MAP{$self->path};	2423	delete $cf::MAP{$self->path};
1302		2424
		2425	$self->deactivate;
1303	$_->clear_links_to ($self) for values %cf::MAP;	2426	$_->clear_links_to ($self) for values %cf::MAP;
		2427	$self->clear;
1304		2428
1305	$self->unlink_save;	2429	$self->unlink_save;
1306	$self->destroy;	2430	$self->destroy;
1307	}	2431	}
1308		2432
1309	my $nuke_counter = "aaaa";	2433	my $nuke_counter = "aaaa";
1310		2434
1311	sub nuke {	2435	sub nuke {
1312	my ($self) = @_;	2436	my ($self) = @_;
1313		2437
		2438	{
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	delete $cf::MAP{$self->path};
		2442
		2443	$self->unlink_save;
		2444
		2445	bless $self, "cf::map::wrap";
		2446	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	2447	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	2448	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	2449	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2450
		2451	$cf::MAP{$self->path} = $self;
		2452	}
		2453
1317	$self->reset; # polite request, might not happen	2454	$self->reset; # polite request, might not happen
1318	}	2455	}
1319		2456
1320	sub customise_for {	2457	=item $maps = cf::map::tmp_maps
1321	my ($map, $ob) = @_;
1322		2458
1323	if ($map->per_player) {	2459	Returns an arrayref with all map paths of currently instantiated and saved
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2460	maps. May block.
		2461
		2462	=cut
		2463
		2464	sub tmp_maps() {
1325	}	2465	[
1326		2466	map {
1327	$map	2467	utf8::decode $_;
		2468	/\.map$/
		2469	? normalise $_
		2470	: ()
		2471	} @{ aio_readdir $TMPDIR or [] }
		2472	]
1328	}	2473	}
1329		2474
1330	sub emergency_save {	2475	=item $maps = cf::map::random_maps
1331	local $cf::FREEZE = 1;
1332		2476
1333	warn "enter emergency map save\n";	2477	Returns an arrayref with all map paths of currently instantiated and saved
		2478	random maps. May block.
1334		2479
1335	cf::sync_job {	2480	=cut
1336	warn "begin emergency map save\n";	2481
1337	$_->save for values %cf::MAP;	2482	sub random_maps() {
		2483	[
		2484	map {
		2485	utf8::decode $_;
		2486	/\.map$/
		2487	? normalise "?random/$_"
		2488	: ()
		2489	} @{ aio_readdir $RANDOMDIR or [] }
		2490	]
		2491	}
		2492
		2493	=item cf::map::unique_maps
		2494
		2495	Returns an arrayref of paths of all shared maps that have
		2496	instantiated unique items. May block.
		2497
		2498	=cut
		2499
		2500	sub unique_maps() {
		2501	[
		2502	map {
		2503	utf8::decode $_;
		2504	s/\.map$//; # TODO future compatibility hack
		2505	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2506	? ()
		2507	: normalise $_
		2508	} @{ aio_readdir $UNIQUEDIR or [] }
		2509	]
		2510	}
		2511
		2512	=item cf::map::static_maps
		2513
		2514	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2515	file in the shared directory excluding F</styles> and F</editor>). May
		2516	block.
		2517
		2518	=cut
		2519
		2520	sub static_maps() {
		2521	my @dirs = "";
		2522	my @maps;
		2523
		2524	while (@dirs) {
		2525	my $dir = shift @dirs;
		2526
		2527	next if $dir eq "/styles" || $dir eq "/editor";
		2528
		2529	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2530	or return;
		2531
		2532	for (@$files) {
		2533	s/\.map$// or next;
		2534	utf8::decode $_;
		2535	push @maps, "$dir/$_";
		2536	}
		2537
		2538	push @dirs, map "$dir/$_", @$dirs;
1338	};	2539	}
1339		2540
1340	warn "end emergency map save\n";	2541	\@maps
		2542	}
		2543
		2544	=back
		2545
		2546	=head3 cf::object
		2547
		2548	=cut
		2549
		2550	package cf::object;
		2551
		2552	=over 4
		2553
		2554	=item $ob->inv_recursive
		2555
		2556	Returns the inventory of the object I<and> their inventories, recursively,
		2557	but I<not> the object itself.
		2558
		2559	=cut
		2560
		2561	sub inv_recursive_;
		2562	sub inv_recursive_ {
		2563	map { $_, inv_recursive_ $_->inv } @_
		2564	}
		2565
		2566	sub inv_recursive {
		2567	inv_recursive_ inv $_[0]
		2568	}
		2569
		2570	=item $ref = $ob->ref
		2571
		2572	Creates and returns a persistent reference to an object that can be stored as a string.
		2573
		2574	=item $ob = cf::object::deref ($refstring)
		2575
		2576	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2577	even if the object actually exists. May block.
		2578
		2579	=cut
		2580
		2581	sub deref {
		2582	my ($ref) = @_;
		2583
		2584	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2585	my ($uuid, $name) = ($1, $2);
		2586	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2587	or return;
		2588	$pl->ob->uuid eq $uuid
		2589	or return;
		2590
		2591	$pl->ob
		2592	} else {
		2593	warn "$ref: cannot resolve object reference\n";
		2594	undef
		2595	}
1341	}	2596	}
1342		2597
1343	package cf;	2598	package cf;
1344		2599
1345	=back	2600	=back
1346
1347		2601
1348	=head3 cf::object::player	2602	=head3 cf::object::player
1349		2603
1350	=over 4	2604	=over 4
1351		2605
…		…
1354	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2608	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1355	can be C<undef>. Does the right thing when the player is currently in a	2609	can be C<undef>. Does the right thing when the player is currently in a
1356	dialogue with the given NPC character.	2610	dialogue with the given NPC character.
1357		2611
1358	=cut	2612	=cut
		2613
		2614	our $SAY_CHANNEL = {
		2615	id => "say",
		2616	title => "Map",
		2617	reply => "say ",
		2618	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2619	};
		2620
		2621	our $CHAT_CHANNEL = {
		2622	id => "chat",
		2623	title => "Chat",
		2624	reply => "chat ",
		2625	tooltip => "Player chat and shouts, global to the server.",
		2626	};
1359		2627
1360	# rough implementation of a future "reply" method that works	2628	# rough implementation of a future "reply" method that works
1361	# with dialog boxes.	2629	# with dialog boxes.
1362	#TODO: the first argument must go, split into a $npc->reply_to ( method	2630	#TODO: the first argument must go, split into a $npc->reply_to ( method
1363	sub cf::object::player::reply($$$;$) {	2631	sub cf::object::player::reply($$$;$) {
…		…
1365		2633
1366	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1367		2635
1368	if ($self->{record_replies}) {	2636	if ($self->{record_replies}) {
1369	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2638
1370	} else {	2639	} else {
		2640	my $pl = $self->contr;
		2641
		2642	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2643	my $dialog = $pl->{npc_dialog};
		2644	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2645
		2646	} else {
1371	$msg = $npc->name . " says: $msg" if $npc;	2647	$msg = $npc->name . " says: $msg" if $npc;
1372	$self->message ($msg, $flags);	2648	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2649	}
1373	}	2650	}
		2651	}
		2652
		2653	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2654
		2655	=cut
		2656
		2657	sub cf::object::send_msg {
		2658	my $pl = shift->contr
		2659	or return;
		2660	$pl->send_msg (@_);
1374	}	2661	}
1375		2662
1376	=item $player_object->may ("access")	2663	=item $player_object->may ("access")
1377		2664
1378	Returns wether the given player is authorized to access resource "access"	2665	Returns wether the given player is authorized to access resource "access"
…		…
1391		2678
1392	=item $player_object->enter_link	2679	=item $player_object->enter_link
1393		2680
1394	Freezes the player and moves him/her to a special map (C<{link}>).	2681	Freezes the player and moves him/her to a special map (C<{link}>).
1395		2682
1396	The player should be reaosnably safe there for short amounts of time. You	2683	The player should be reasonably safe there for short amounts of time (e.g.
1397	I<MUST> call C<leave_link> as soon as possible, though.	2684	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2685	though, as the player cannot control the character while it is on the link
		2686	map.
		2687
		2688	Will never block.
1398		2689
1399	=item $player_object->leave_link ($map, $x, $y)	2690	=item $player_object->leave_link ($map, $x, $y)
1400		2691
1401	Moves the player out of the specila link map onto the given map. If the	2692	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	2693	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	2694	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	2695	fails, to the emergency map position.
1405		2696
1406	Might block.	2697	Might block.
1407		2698
1408	=cut	2699	=cut
		2700
		2701	sub link_map {
		2702	unless ($LINK_MAP) {
		2703	$LINK_MAP = cf::map::find "{link}"
		2704	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2705	$LINK_MAP->load;
		2706	}
		2707
		2708	$LINK_MAP
		2709	}
1409		2710
1410	sub cf::object::player::enter_link {	2711	sub cf::object::player::enter_link {
1411	my ($self) = @_;	2712	my ($self) = @_;
1412		2713
1413	return if $self->map == $LINK_MAP;
1414
1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1416	if $self->map;
1417
1418	$self->enter_map ($LINK_MAP, 20, 20);
1419	$self->deactivate_recursive;	2714	$self->deactivate_recursive;
		2715
		2716	++$self->{_link_recursion};
		2717
		2718	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2719
		2720	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2721	if $self->map && $self->map->{path} ne "{link}";
		2722
		2723	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1420	}	2724	}
1421		2725
1422	sub cf::object::player::leave_link {	2726	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	2727	my ($self, $map, $x, $y) = @_;
		2728
		2729	return unless $self->contr->active;
1424		2730
1425	my $link_pos = delete $self->{_link_pos};	2731	my $link_pos = delete $self->{_link_pos};
1426		2732
1427	unless ($map) {	2733	unless ($map) {
1428	# restore original map position	2734	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	2735	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	2736	$map = cf::map::find $map;
1431		2737
1432	unless ($map) {	2738	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	2739	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	2740	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	2741	or die "FATAL: cannot load emergency map\n";
1436	}	2742	}
1437	}	2743	}
1438		2744
1439	($x, $y) = (-1, -1)	2745	($x, $y) = (-1, -1)
1440	unless (defined $x) && (defined $y);	2746	unless (defined $x) && (defined $y);
1441		2747
1442	# use -1 or undef as default coordinates, not 0, 0	2748	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	2749	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	2750	if $x <= 0 && $y <= 0;
1445		2751
1446	$map->load;	2752	$map->load;
1447		2753
		2754	return unless $self->contr->active;
		2755
		2756	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2757	if ($self->enter_map ($map, $x, $y)) {
		2758	# entering was successful
		2759	delete $self->{_link_recursion};
		2760	# only activate afterwards, to support waiting in hooks
1448	$self->activate_recursive;	2761	$self->activate_recursive;
1449	$self->enter_map ($map, $x, $y);	2762	}
1450	}
1451		2763
1452	=item $player_object->goto_map ($path, $x, $y)	2764	}
1453		2765
1454	=cut	2766	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1455		2767
		2768	Moves the player to the given map-path and coordinates by first freezing
		2769	her, loading and preparing them map, calling the provided $check callback
		2770	that has to return the map if sucecssful, and then unfreezes the player on
		2771	the new (success) or old (failed) map position. In either case, $done will
		2772	be called at the end of this process.
		2773
		2774	Note that $check will be called with a potentially non-loaded map, so if
		2775	it needs a loaded map it has to call C<< ->load >>.
		2776
		2777	=cut
		2778
		2779	our $GOTOGEN;
		2780
1456	sub cf::object::player::goto_map {	2781	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	2782	my ($self, $path, $x, $y, $check, $done) = @_;
		2783
		2784	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2785	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2786	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2787	($path, $x, $y) = @$EMERGENCY_POSITION;
		2788	}
		2789
		2790	# do generation counting so two concurrent goto's will be executed in-order
		2791	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1458		2792
1459	$self->enter_link;	2793	$self->enter_link;
1460		2794
1461	(Coro::async {	2795	(async {
1462	$path = new cf::path $path;	2796	$Coro::current->{desc} = "player::goto $path $x $y";
1463		2797
1464	my $map = cf::map::find_map $path->as_string;	2798	# *tag paths override both path and x|y
		2799	if ($path =~ /^\*(.*)$/) {
		2800	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2801	my $ob = $obs[rand @obs];
		2802
		2803	# see if we actually can go there
		2804	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2805	$ob = $obs[rand @obs];
		2806	} else {
		2807	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2808	}
		2809	# else put us there anyways for now #d#
		2810
		2811	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2812	} else {
		2813	($path, $x, $y) = (undef, undef, undef);
		2814	}
		2815	}
		2816
		2817	my $map = eval {
		2818	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2819
		2820	if ($map) {
1465	$map = $map->customise_for ($self) if $map;	2821	$map = $map->customise_for ($self);
		2822	$map = $check->($map, $x, $y, $self) if $check && $map;
		2823	} else {
		2824	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2825	}
1466		2826
1467	warn "entering ", $map->path, " at ($x, $y)\n"
1468	if $map;	2827	$map
		2828	};
1469		2829
1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2830	if ($@) {
		2831	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2832	LOG llevError | logBacktrace, Carp::longmess $@;
		2833	}
1471		2834
		2835	if ($gen == $self->{_goto_generation}) {
		2836	delete $self->{_goto_generation};
1472	$self->leave_link ($map, $x, $y);	2837	$self->leave_link ($map, $x, $y);
		2838	}
		2839
		2840	$done->($self) if $done;
1473	})->prio (1);	2841	})->prio (1);
1474	}	2842	}
1475		2843
1476	=item $player_object->enter_exit ($exit_object)	2844	=item $player_object->enter_exit ($exit_object)
1477		2845
…		…
1479		2847
1480	sub parse_random_map_params {	2848	sub parse_random_map_params {
1481	my ($spec) = @_;	2849	my ($spec) = @_;
1482		2850
1483	my $rmp = { # defaults	2851	my $rmp = { # defaults
1484	xsize => 10,	2852	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	2853	ysize => (cf::rndm 15, 40),
		2854	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2855	#layout => string,
1486	};	2856	};
1487		2857
1488	for (split /\n/, $spec) {	2858	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	2859	my ($k, $v) = split /\s+/, $_, 2;
1490		2860
…		…
1502	# that depends on the exit object	2872	# that depends on the exit object
1503		2873
1504	my $rmp = parse_random_map_params $exit->msg;	2874	my $rmp = parse_random_map_params $exit->msg;
1505		2875
1506	if ($exit->map) {	2876	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2877	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2878	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2879	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2880	$rmp->{origin_y} = $exit->y;
		2881
		2882	$exit->map->touch;
1511	}	2883	}
1512		2884
1513	$rmp->{random_seed} ||= $exit->random_seed;	2885	$rmp->{random_seed} ||= $exit->random_seed;
1514		2886
1515	my $data = cf::to_json $rmp;	2887	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1516	my $md5 = Digest::MD5::md5_hex $data;	2888	my $md5 = Digest::MD5::md5_hex $data;
		2889	my $meta = "$RANDOMDIR/$md5.meta";
1517		2890
1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2891	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1519	aio_write $fh, 0, (length $data), $data, 0;	2892	aio_write $fh, 0, (length $data), $data, 0;
		2893	undef $fh;
		2894	aio_rename "$meta~", $meta;
1520		2895
		2896	my $slaying = "?random/$md5";
		2897
		2898	if ($exit->valid) {
1521	$exit->slaying ("?random/$md5");	2899	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2900	$exit->msg (undef);
		2901	}
1523	}	2902	}
1524	}	2903	}
1525		2904
1526	sub cf::object::player::enter_exit {	2905	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2906	my ($self, $exit) = @_;
1528		2907
1529	return unless $self->type == cf::PLAYER;	2908	return unless $self->type == cf::PLAYER;
1530		2909
1531	$self->enter_link;	2910	$self->enter_link;
1532		2911
1533	(Coro::async {	2912	(async {
		2913	$Coro::current->{desc} = "enter_exit";
		2914
1534	unless (eval {	2915	unless (eval {
		2916	$self->deactivate_recursive; # just to be sure
1535		2917
		2918	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2919	my $x = $exit->stats->hp;
		2920	my $y = $exit->stats->sp;
		2921
		2922	# special map handling
		2923	my $slaying = $exit->slaying;
		2924
		2925	# special map handling
		2926	if ($slaying eq "/!") {
		2927	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2928
1536	prepare_random_map $exit	2929	prepare_random_map $exit
		2930	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2931
1537	if $exit->slaying eq "/!";	2932	$map = $exit->slaying;
1538		2933
1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2934	} elsif ($slaying eq '!up') {
1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2935	$map = $exit->map->tile_path (cf::TILE_UP);
		2936	$x = $exit->x;
		2937	$y = $exit->y;
1541		2938
		2939	} elsif ($slaying eq '!down') {
		2940	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2941	$x = $exit->x;
		2942	$y = $exit->y;
		2943	}
		2944
		2945	$self->goto ($map, $x, $y);
		2946
		2947	# if exit is damned, update players death & WoR home-position
		2948	$self->contr->savebed ($map, $x, $y)
		2949	if $exit->flag (cf::FLAG_DAMNED);
		2950
1542	1;	2951	1
1543	}) {	2952	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2953	$self->message ("Something went wrong deep within the deliantra server. "
1545	. "I'll try to bring you back to the map you were before. "	2954	. "I'll try to bring you back to the map you were before. "
1546	. "Please report this to the dungeon master",	2955	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2956	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2957
1549	warn "ERROR in enter_exit: $@";	2958	error "ERROR in enter_exit: $@";
1550	$self->leave_link;	2959	$self->leave_link;
1551	}	2960	}
1552	})->prio (1);	2961	})->prio (1);
1553	}	2962	}
1554		2963
…		…
1565		2974
1566	sub cf::client::send_drawinfo {	2975	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2976	my ($self, $text, $flags) = @_;
1568		2977
1569	utf8::encode $text;	2978	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2979	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2980	}
1572		2981
		2982	=item $client->send_big_packet ($pkt)
		2983
		2984	Like C<send_packet>, but tries to compress large packets, and fragments
		2985	them as required.
		2986
		2987	=cut
		2988
		2989	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2990
		2991	sub cf::client::send_big_packet {
		2992	my ($self, $pkt) = @_;
		2993
		2994	# try lzf for large packets
		2995	$pkt = "lzf " . Compress::LZF::compress $pkt
		2996	if 1024 <= length $pkt and $self->{can_lzf};
		2997
		2998	# split very large packets
		2999	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3000	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3001	$pkt = "frag";
		3002	}
		3003
		3004	$self->send_packet ($pkt);
		3005	}
		3006
		3007	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3008
		3009	Send a drawinfo or msg packet to the client, formatting the msg for the
		3010	client if neccessary. C<$type> should be a string identifying the type of
		3011	the message, with C<log> being the default. If C<$color> is negative, suppress
		3012	the message unless the client supports the msg packet.
		3013
		3014	=cut
		3015
		3016	# non-persistent channels (usually the info channel)
		3017	our %CHANNEL = (
		3018	"c/motd" => {
		3019	id => "infobox",
		3020	title => "MOTD",
		3021	reply => undef,
		3022	tooltip => "The message of the day",
		3023	},
		3024	"c/identify" => {
		3025	id => "infobox",
		3026	title => "Identify",
		3027	reply => undef,
		3028	tooltip => "Items recently identified",
		3029	},
		3030	"c/examine" => {
		3031	id => "infobox",
		3032	title => "Examine",
		3033	reply => undef,
		3034	tooltip => "Signs and other items you examined",
		3035	},
		3036	"c/shopinfo" => {
		3037	id => "infobox",
		3038	title => "Shop Info",
		3039	reply => undef,
		3040	tooltip => "What your bargaining skill tells you about the shop",
		3041	},
		3042	"c/book" => {
		3043	id => "infobox",
		3044	title => "Book",
		3045	reply => undef,
		3046	tooltip => "The contents of a note or book",
		3047	},
		3048	"c/lookat" => {
		3049	id => "infobox",
		3050	title => "Look",
		3051	reply => undef,
		3052	tooltip => "What you saw there",
		3053	},
		3054	"c/who" => {
		3055	id => "infobox",
		3056	title => "Players",
		3057	reply => undef,
		3058	tooltip => "Shows players who are currently online",
		3059	},
		3060	"c/body" => {
		3061	id => "infobox",
		3062	title => "Body Parts",
		3063	reply => undef,
		3064	tooltip => "Shows which body parts you posess and are available",
		3065	},
		3066	"c/statistics" => {
		3067	id => "infobox",
		3068	title => "Statistics",
		3069	reply => undef,
		3070	tooltip => "Shows your primary statistics",
		3071	},
		3072	"c/skills" => {
		3073	id => "infobox",
		3074	title => "Skills",
		3075	reply => undef,
		3076	tooltip => "Shows your experience per skill and item power",
		3077	},
		3078	"c/shopitems" => {
		3079	id => "infobox",
		3080	title => "Shop Items",
		3081	reply => undef,
		3082	tooltip => "Shows the items currently for sale in this shop",
		3083	},
		3084	"c/resistances" => {
		3085	id => "infobox",
		3086	title => "Resistances",
		3087	reply => undef,
		3088	tooltip => "Shows your resistances",
		3089	},
		3090	"c/pets" => {
		3091	id => "infobox",
		3092	title => "Pets",
		3093	reply => undef,
		3094	tooltip => "Shows information abotu your pets/a specific pet",
		3095	},
		3096	"c/perceiveself" => {
		3097	id => "infobox",
		3098	title => "Perceive Self",
		3099	reply => undef,
		3100	tooltip => "You gained detailed knowledge about yourself",
		3101	},
		3102	"c/uptime" => {
		3103	id => "infobox",
		3104	title => "Uptime",
		3105	reply => undef,
		3106	tooltip => "How long the server has been running since last restart",
		3107	},
		3108	"c/mapinfo" => {
		3109	id => "infobox",
		3110	title => "Map Info",
		3111	reply => undef,
		3112	tooltip => "Information related to the maps",
		3113	},
		3114	"c/party" => {
		3115	id => "party",
		3116	title => "Party",
		3117	reply => "gsay ",
		3118	tooltip => "Messages and chat related to your party",
		3119	},
		3120	"c/death" => {
		3121	id => "death",
		3122	title => "Death",
		3123	reply => undef,
		3124	tooltip => "Reason for and more info about your most recent death",
		3125	},
		3126	"c/say" => $SAY_CHANNEL,
		3127	"c/chat" => $CHAT_CHANNEL,
		3128	);
		3129
		3130	sub cf::client::send_msg {
		3131	my ($self, $channel, $msg, $color, @extra) = @_;
		3132
		3133	$msg = $self->pl->expand_cfpod ($msg)
		3134	unless $color & cf::NDI_VERBATIM;
		3135
		3136	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3137
		3138	# check predefined channels, for the benefit of C
		3139	if ($CHANNEL{$channel}) {
		3140	$channel = $CHANNEL{$channel};
		3141
		3142	$self->ext_msg (channel_info => $channel);
		3143	$channel = $channel->{id};
		3144
		3145	} elsif (ref $channel) {
		3146	# send meta info to client, if not yet sent
		3147	unless (exists $self->{channel}{$channel->{id}}) {
		3148	$self->{channel}{$channel->{id}} = $channel;
		3149	$self->ext_msg (channel_info => $channel);
		3150	}
		3151
		3152	$channel = $channel->{id};
		3153	}
		3154
		3155	return unless @extra || length $msg;
		3156
		3157	# default colour, mask it out
		3158	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3159	if $color & cf::NDI_DEF;
		3160
		3161	my $pkt = "msg "
		3162	. $self->{json_coder}->encode (
		3163	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3164	);
		3165
		3166	$self->send_big_packet ($pkt);
		3167	}
		3168
		3169	=item $client->ext_msg ($type, @msg)
		3170
		3171	Sends an ext event to the client.
		3172
		3173	=cut
		3174
		3175	sub cf::client::ext_msg($$@) {
		3176	my ($self, $type, @msg) = @_;
		3177
		3178	if ($self->extcmd == 2) {
		3179	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3180	} elsif ($self->extcmd == 1) { # TODO: remove
		3181	push @msg, msgtype => "event_$type";
		3182	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3183	}
		3184	}
		3185
		3186	=item $client->ext_reply ($msgid, @msg)
		3187
		3188	Sends an ext reply to the client.
		3189
		3190	=cut
		3191
		3192	sub cf::client::ext_reply($$@) {
		3193	my ($self, $id, @msg) = @_;
		3194
		3195	if ($self->extcmd == 2) {
		3196	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3197	} elsif ($self->extcmd == 1) {
		3198	#TODO: version 1, remove
		3199	unshift @msg, msgtype => "reply", msgid => $id;
		3200	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3201	}
		3202	}
1573		3203
1574	=item $success = $client->query ($flags, "text", \&cb)	3204	=item $success = $client->query ($flags, "text", \&cb)
1575		3205
1576	Queues a query to the client, calling the given callback with	3206	Queues a query to the client, calling the given callback with
1577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3207	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3208	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1579		3209
1580	Queries can fail, so check the return code. Or don't, as queries will become	3210	Queries can fail, so check the return code. Or don't, as queries will
1581	reliable at some point in the future.	3211	become reliable at some point in the future.
1582		3212
1583	=cut	3213	=cut
1584		3214
1585	sub cf::client::query {	3215	sub cf::client::query {
1586	my ($self, $flags, $text, $cb) = @_;	3216	my ($self, $flags, $text, $cb) = @_;
…		…
1594	utf8::encode $text;	3224	utf8::encode $text;
1595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3225	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1596		3226
1597	$self->send_packet ($self->{query_queue}[0][0])	3227	$self->send_packet ($self->{query_queue}[0][0])
1598	if @{ $self->{query_queue} } == 1;	3228	if @{ $self->{query_queue} } == 1;
		3229
		3230	1
1599	}	3231	}
1600		3232
1601	cf::client->attach (	3233	cf::client->attach (
		3234	on_connect => sub {
		3235	my ($ns) = @_;
		3236
		3237	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3238	},
1602	on_reply => sub {	3239	on_reply => sub {
1603	my ($ns, $msg) = @_;	3240	my ($ns, $msg) = @_;
1604		3241
1605	# this weird shuffling is so that direct followup queries	3242	# this weird shuffling is so that direct followup queries
1606	# get handled first	3243	# get handled first
1607	my $queue = delete $ns->{query_queue};	3244	my $queue = delete $ns->{query_queue}
		3245	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		3246
1609	(shift @$queue)->[1]->($msg);	3247	(shift @$queue)->[1]->($msg);
		3248	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		3249
1611	push @{ $ns->{query_queue} }, @$queue;	3250	push @{ $ns->{query_queue} }, @$queue;
1612		3251
1613	if (@{ $ns->{query_queue} } == @$queue) {	3252	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	3253	if (@$queue) {
…		…
1616	} else {	3255	} else {
1617	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3256	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1618	}	3257	}
1619	}	3258	}
1620	},	3259	},
		3260	on_exticmd => sub {
		3261	my ($ns, $buf) = @_;
		3262
		3263	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3264
		3265	if (ref $msg) {
		3266	my ($type, $reply, @payload) =
		3267	"ARRAY" eq ref $msg
		3268	? @$msg
		3269	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3270
		3271	my @reply;
		3272
		3273	if (my $cb = $EXTICMD{$type}) {
		3274	@reply = $cb->($ns, @payload);
		3275	}
		3276
		3277	$ns->ext_reply ($reply, @reply)
		3278	if $reply;
		3279
		3280	} else {
		3281	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3282	}
		3283
		3284	cf::override;
		3285	},
1621	);	3286	);
1622		3287
1623	=item $client->coro (\&cb)	3288	=item $client->async (\&cb)
1624		3289
1625	Create a new coroutine, running the specified callback. The coroutine will	3290	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	3291	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	3292	or loss of connection).
1628		3293
1629	=cut	3294	=cut
1630		3295
1631	sub cf::client::coro {	3296	sub cf::client::async {
1632	my ($self, $cb) = @_;	3297	my ($self, $cb) = @_;
1633		3298
1634	my $coro; $coro = async {	3299	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		3300
1641	$coro->on_destroy (sub {	3301	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	3302	delete $self->{_coro}{$coro+0};
1643	});	3303	});
1644		3304
…		…
1646		3306
1647	$coro	3307	$coro
1648	}	3308	}
1649		3309
1650	cf::client->attach (	3310	cf::client->attach (
1651	on_destroy => sub {	3311	on_client_destroy => sub {
1652	my ($ns) = @_;	3312	my ($ns) = @_;
1653		3313
1654	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3314	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1655	},	3315	},
1656	);	3316	);
…		…
1671	our $safe = new Safe "safe";	3331	our $safe = new Safe "safe";
1672	our $safe_hole = new Safe::Hole;	3332	our $safe_hole = new Safe::Hole;
1673		3333
1674	$SIG{FPE} = 'IGNORE';	3334	$SIG{FPE} = 'IGNORE';
1675		3335
1676	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3336	$safe->permit_only (Opcode::opset qw(
		3337	:base_core :base_mem :base_orig :base_math :base_loop
		3338	grepstart grepwhile mapstart mapwhile
		3339	sort time
		3340	));
1677		3341
1678	# here we export the classes and methods available to script code	3342	# here we export the classes and methods available to script code
1679		3343
1680	=pod	3344	=pod
1681		3345
1682	The following fucntions and emthods are available within a safe environment:	3346	The following functions and methods are available within a safe environment:
1683		3347
1684	cf::object contr pay_amount pay_player map	3348	cf::object
		3349	contr pay_amount pay_player map x y force_find force_add destroy
		3350	insert remove name archname title slaying race decrease split
		3351	value
		3352
1685	cf::object::player player	3353	cf::object::player
1686	cf::player peaceful	3354	player
1687	cf::map trigger	3355
		3356	cf::player
		3357	peaceful
		3358
		3359	cf::map
		3360	trigger
1688		3361
1689	=cut	3362	=cut
1690		3363
1691	for (	3364	for (
1692	["cf::object" => qw(contr pay_amount pay_player map)],	3365	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3366	insert remove inv nrof name archname title slaying race
		3367	decrease split destroy change_exp value msg lore send_msg)],
1693	["cf::object::player" => qw(player)],	3368	["cf::object::player" => qw(player)],
1694	["cf::player" => qw(peaceful)],	3369	["cf::player" => qw(peaceful send_msg)],
1695	["cf::map" => qw(trigger)],	3370	["cf::map" => qw(trigger)],
1696	) {	3371	) {
1697	no strict 'refs';
1698	my ($pkg, @funs) = @$_;	3372	my ($pkg, @funs) = @$_;
1699	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3373	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1700	for @funs;	3374	for @funs;
1701	}	3375	}
1702		3376
…		…
1717		3391
1718	my $qcode = $code;	3392	my $qcode = $code;
1719	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3393	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1720	$qcode =~ s/\n/\\n/g;	3394	$qcode =~ s/\n/\\n/g;
1721		3395
		3396	%vars = (_dummy => 0) unless %vars;
		3397
		3398	my @res;
1722	local $_;	3399	local $_;
1723	local @safe::cf::_safe_eval_args = values %vars;
1724		3400
1725	my $eval =	3401	my $eval =
1726	"do {\n"	3402	"do {\n"
1727	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3403	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1728	. "#line 0 \"{$qcode}\"\n"	3404	. "#line 0 \"{$qcode}\"\n"
1729	. $code	3405	. $code
1730	. "\n}"	3406	. "\n}"
1731	;	3407	;
1732		3408
		3409	if ($CFG{safe_eval}) {
1733	sub_generation_inc;	3410	sub_generation_inc;
		3411	local @safe::cf::_safe_eval_args = values %vars;
1734	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3412	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1735	sub_generation_inc;	3413	sub_generation_inc;
		3414	} else {
		3415	local @cf::_safe_eval_args = values %vars;
		3416	@res = wantarray ? eval eval : scalar eval $eval;
		3417	}
1736		3418
1737	if ($@) {	3419	if ($@) {
1738	warn "$@";	3420	warn "$@",
1739	warn "while executing safe code '$code'\n";	3421	"while executing safe code '$code'\n",
1740	warn "with arguments " . (join " ", %vars) . "\n";	3422	"with arguments " . (join " ", %vars) . "\n";
1741	}	3423	}
1742		3424
1743	wantarray ? @res : $res[0]	3425	wantarray ? @res : $res[0]
1744	}	3426	}
1745		3427
…		…
1759	=cut	3441	=cut
1760		3442
1761	sub register_script_function {	3443	sub register_script_function {
1762	my ($fun, $cb) = @_;	3444	my ($fun, $cb) = @_;
1763		3445
1764	no strict 'refs';	3446	$fun = "safe::$fun" if $CFG{safe_eval};
1765	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3447	*$fun = $safe_hole->wrap ($cb);
1766	}	3448	}
1767		3449
1768	=back	3450	=back
1769		3451
1770	=cut	3452	=cut
1771		3453
1772	#############################################################################	3454	#############################################################################
		3455	# the server's init and main functions
1773		3456
1774	=head2 EXTENSION DATABASE SUPPORT	3457	sub load_facedata($) {
		3458	my ($path) = @_;
1775		3459
1776	Crossfire maintains a very simple database for extension use. It can	3460	# HACK to clear player env face cache, we need some signal framework
1777	currently store anything that can be serialised using Storable, which	3461	# for this (global event?)
1778	excludes objects.	3462	%ext::player_env::MUSIC_FACE_CACHE = ();
1779		3463
1780	The parameter C<$family> should best start with the name of the extension	3464	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1781	using it, it should be unique.
1782		3465
1783	=over 4	3466	trace "loading facedata from $path\n";
1784		3467
1785	=item $hashref = cf::db_get $family	3468	my $facedata = decode_storable load_file $path;
1786		3469
1787	Return a hashref for use by the extension C<$family>, which can be	3470	$facedata->{version} == 2
1788	modified. After modifications, you have to call C<cf::db_dirty> or	3471	or cf::cleanup "$path: version mismatch, cannot proceed.";
1789	C<cf::db_sync>.
1790		3472
1791	=item $value = cf::db_get $family => $key	3473	# patch in the exptable
1792		3474	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1793	Returns a single value from the database	3475	$facedata->{resource}{"res/exp_table"} = {
1794		3476	type => FT_RSRC,
1795	=item cf::db_put $family => $hashref	3477	data => $exp_table,
1796		3478	hash => (Digest::MD5::md5 $exp_table),
1797	Stores the given family hashref into the database. Updates are delayed, if
1798	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1799
1800	=item cf::db_put $family => $key => $value
1801
1802	Stores the given C<$value> in the family hash. Updates are delayed, if you
1803	want the data to be synced to disk immediately, use C<cf::db_sync>.
1804
1805	=item cf::db_dirty
1806
1807	Marks the database as dirty, to be updated at a later time.
1808
1809	=item cf::db_sync
1810
1811	Immediately write the database to disk I<if it is dirty>.
1812
1813	=cut
1814
1815	our $DB;
1816
1817	{
1818	my $path = cf::localdir . "/database.pst";
1819
1820	sub db_load() {
1821	warn "loading database $path\n";#d# remove later
1822	$DB = stat $path ? Storable::retrieve $path : { };
1823	}
1824
1825	my $pid;
1826
1827	sub db_save() {
1828	warn "saving database $path\n";#d# remove later
1829	waitpid $pid, 0 if $pid;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});	3479	};
		3480	cf::cede_to_tick;
1848		3481
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}	3482	{
		3483	my $faces = $facedata->{faceinfo};
1853		3484
1854	sub db_get($;$) {	3485	while (my ($face, $info) = each %$faces) {
1855	@_ >= 2	3486	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1856	? $DB->{$_[0]}{$_[1]}
1857	: ($DB->{$_[0]} ||= { })
1858	}
1859		3487
1860	sub db_put($$;$) {	3488	cf::face::set_visibility $idx, $info->{visibility};
1861	if (@_ >= 3) {	3489	cf::face::set_magicmap $idx, $info->{magicmap};
1862	$DB->{$_[0]}{$_[1]} = $_[2];	3490	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1863	} else {	3491	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1864	$DB->{$_[0]} = $_[1];	3492	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1865	}
1866	db_dirty;
1867	}
1868		3493
1869	cf::global->attach (	3494	cf::cede_to_tick;
1870	prio => 10000,
1871	on_cleanup => sub {
1872	db_sync;
1873	},	3495	}
1874	);
1875	}
1876		3496
1877	#############################################################################	3497	while (my ($face, $info) = each %$faces) {
1878	# the server's main()	3498	next unless $info->{smooth};
1879		3499
1880	sub cfg_load {	3500	my $idx = cf::face::find $face
1881	open my $fh, "<:utf8", cf::confdir . "/config"	3501	or next;
1882	or return;
1883		3502
1884	local $/;	3503	if (my $smooth = cf::face::find $info->{smooth}) {
1885	*CFG = YAML::Syck::Load <$fh>;	3504	cf::face::set_smooth $idx, $smooth;
		3505	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3506	} else {
		3507	error "smooth face '$info->{smooth}' not found for face '$face'";
		3508	}
		3509
		3510	cf::cede_to_tick;
		3511	}
		3512	}
		3513
		3514	{
		3515	my $anims = $facedata->{animinfo};
		3516
		3517	while (my ($anim, $info) = each %$anims) {
		3518	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3519	cf::cede_to_tick;
		3520	}
		3521
		3522	cf::anim::invalidate_all; # d'oh
		3523	}
		3524
		3525	{
		3526	my $res = $facedata->{resource};
		3527
		3528	while (my ($name, $info) = each %$res) {
		3529	if (defined $info->{type}) {
		3530	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3531
		3532	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3533	cf::face::set_type $idx, $info->{type};
		3534	} else {
		3535	$RESOURCE{$name} = $info; # unused
		3536	}
		3537
		3538	cf::cede_to_tick;
		3539	}
		3540	}
		3541
		3542	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3543
		3544	1
		3545	}
		3546
		3547	register_exticmd fx_want => sub {
		3548	my ($ns, $want) = @_;
		3549
		3550	while (my ($k, $v) = each %$want) {
		3551	$ns->fx_want ($k, $v);
		3552	}
		3553	};
		3554
		3555	sub load_resource_file($) {
		3556	my $guard = lock_acquire "load_resource_file";
		3557
		3558	my $status = load_resource_file_ $_[0];
		3559	get_slot 0.1, 100;
		3560	cf::arch::commit_load;
		3561
		3562	$status
		3563	}
		3564
		3565	sub reload_regions {
		3566	# HACK to clear player env face cache, we need some signal framework
		3567	# for this (global event?)
		3568	%ext::player_env::MUSIC_FACE_CACHE = ();
		3569
		3570	load_resource_file "$MAPDIR/regions"
		3571	or die "unable to load regions file\n";
		3572
		3573	for (cf::region::list) {
		3574	$_->{match} = qr/$_->{match}/
		3575	if exists $_->{match};
		3576	}
		3577	}
		3578
		3579	sub reload_facedata {
		3580	load_facedata "$DATADIR/facedata"
		3581	or die "unable to load facedata\n";
		3582	}
		3583
		3584	sub reload_archetypes {
		3585	load_resource_file "$DATADIR/archetypes"
		3586	or die "unable to load archetypes\n";
		3587	}
		3588
		3589	sub reload_treasures {
		3590	load_resource_file "$DATADIR/treasures"
		3591	or die "unable to load treasurelists\n";
		3592	}
		3593
		3594	sub reload_sound {
		3595	trace "loading sound config from $DATADIR/sound\n";
		3596
		3597	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3598
		3599	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3600	my $sound = $soundconf->{compat}[$_]
		3601	or next;
		3602
		3603	my $face = cf::face::find "sound/$sound->[1]";
		3604	cf::sound::set $sound->[0] => $face;
		3605	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3606	}
		3607
		3608	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3609	my $face = cf::face::find "sound/$v";
		3610	cf::sound::set $k => $face;
		3611	}
		3612	}
		3613
		3614	sub reload_resources {
		3615	trace "reloading resource files...\n";
		3616
		3617	reload_exp_table;
		3618	reload_materials;
		3619	reload_facedata;
		3620	reload_sound;
		3621	reload_archetypes;
		3622	reload_regions;
		3623	reload_treasures;
		3624
		3625	trace "finished reloading resource files\n";
		3626	}
		3627
		3628	sub reload_config {
		3629	trace "reloading config file...\n";
		3630
		3631	my $config = load_file "$CONFDIR/config";
		3632	utf8::decode $config;
		3633	*CFG = decode_yaml $config;
		3634
		3635	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3636
		3637	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3638	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3639
		3640	if (exists $CFG{mlockall}) {
		3641	eval {
		3642	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3643	and die "WARNING: m(un)lockall failed: $!\n";
		3644	};
		3645	warn $@ if $@;
		3646	}
		3647	}
		3648
		3649	sub pidfile() {
		3650	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3651	or die "$PIDFILE: $!";
		3652	flock $fh, &Fcntl::LOCK_EX
		3653	or die "$PIDFILE: flock: $!";
		3654	$fh
		3655	}
		3656
		3657	# make sure only one server instance is running at any one time
		3658	sub atomic {
		3659	my $fh = pidfile;
		3660
		3661	my $pid = <$fh>;
		3662	kill 9, $pid if $pid > 0;
		3663
		3664	seek $fh, 0, 0;
		3665	print $fh $$;
		3666	}
		3667
		3668	sub main_loop {
		3669	trace "EV::loop starting\n";
		3670	if (1) {
		3671	EV::loop;
		3672	}
		3673	trace "EV::loop returned\n";
		3674	goto &main_loop unless $REALLY_UNLOOP;
1886	}	3675	}
1887		3676
1888	sub main {	3677	sub main {
		3678	cf::init_globals; # initialise logging
		3679
		3680	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3681	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3682	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3683	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3684
		3685	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3686
1889	# we must not ever block the main coroutine	3687	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	3688	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3689	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	3690	(async {
1893	Event::one_event;	3691	$Coro::current->{desc} = "IDLE BUG HANDLER";
1894	})->();	3692	EV::loop EV::LOOP_ONESHOT;
		3693	})->prio (Coro::PRIO_MAX);
1895	};	3694	};
1896		3695
1897	cfg_load;	3696	evthread_start IO::AIO::poll_fileno;
1898	db_load;	3697
		3698	cf::sync_job {
		3699	cf::incloader::init ();
		3700
		3701	cf::init_anim;
		3702	cf::init_attackmess;
		3703	cf::init_dynamic;
		3704
		3705	cf::load_settings;
		3706
		3707	reload_resources;
		3708	reload_config;
		3709	db_init;
		3710
		3711	cf::init_uuid;
		3712	cf::init_signals;
		3713	cf::init_skills;
		3714
		3715	cf::init_beforeplay;
		3716
		3717	atomic;
		3718
1899	load_extensions;	3719	load_extensions;
1900	Event::loop;	3720
		3721	utime time, time, $RUNTIMEFILE;
		3722
		3723	# no (long-running) fork's whatsoever before this point(!)
		3724	use POSIX ();
		3725	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3726
		3727	cf::_post_init 0;
		3728	};
		3729
		3730	cf::object::thawer::errors_are_fatal 0;
		3731	info "parse errors in files are no longer fatal from this point on.\n";
		3732
		3733	my $free_main; $free_main = EV::idle sub {
		3734	undef $free_main;
		3735	undef &main; # free gobs of memory :)
		3736	};
		3737
		3738	goto &main_loop;
1901	}	3739	}
1902		3740
1903	#############################################################################	3741	#############################################################################
1904	# initialisation	3742	# initialisation and cleanup
1905		3743
		3744	# install some emergency cleanup handlers
		3745	BEGIN {
		3746	our %SIGWATCHER = ();
		3747	for my $signal (qw(INT HUP TERM)) {
		3748	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3749	cf::cleanup "SIG$signal";
		3750	};
		3751	}
		3752	}
		3753
		3754	sub write_runtime_sync {
		3755	my $t0 = AE::time;
		3756
		3757	# first touch the runtime file to show we are still running:
		3758	# the fsync below can take a very very long time.
		3759
		3760	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3761
		3762	my $guard = cf::lock_acquire "write_runtime";
		3763
		3764	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3765	or return;
		3766
		3767	my $value = $cf::RUNTIME + 90 + 10;
		3768	# 10 is the runtime save interval, for a monotonic clock
		3769	# 60 allows for the watchdog to kill the server.
		3770
		3771	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3772	and return;
		3773
		3774	# always fsync - this file is important
		3775	aio_fsync $fh
		3776	and return;
		3777
		3778	# touch it again to show we are up-to-date
		3779	aio_utime $fh, undef, undef;
		3780
		3781	close $fh
		3782	or return;
		3783
		3784	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3785	and return;
		3786
		3787	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3788
		3789	1
		3790	}
		3791
		3792	our $uuid_lock;
		3793	our $uuid_skip;
		3794
		3795	sub write_uuid_sync($) {
		3796	$uuid_skip ||= $_[0];
		3797
		3798	return if $uuid_lock;
		3799	local $uuid_lock = 1;
		3800
		3801	my $uuid = "$LOCALDIR/uuid";
		3802
		3803	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3804	or return;
		3805
		3806	my $value = uuid_seq uuid_cur;
		3807
		3808	unless ($value) {
		3809	info "cowardly refusing to write zero uuid value!\n";
		3810	return;
		3811	}
		3812
		3813	my $value = uuid_str $value + $uuid_skip;
		3814	$uuid_skip = 0;
		3815
		3816	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3817	and return;
		3818
		3819	# always fsync - this file is important
		3820	aio_fsync $fh
		3821	and return;
		3822
		3823	close $fh
		3824	or return;
		3825
		3826	aio_rename "$uuid~", $uuid
		3827	and return;
		3828
		3829	trace "uuid file written ($value).\n";
		3830
		3831	1
		3832
		3833	}
		3834
		3835	sub write_uuid($$) {
		3836	my ($skip, $sync) = @_;
		3837
		3838	$sync ? write_uuid_sync $skip
		3839	: async { write_uuid_sync $skip };
		3840	}
		3841
		3842	sub emergency_save() {
		3843	my $freeze_guard = cf::freeze_mainloop;
		3844
		3845	info "emergency_perl_save: enter\n";
		3846
		3847	# this is a trade-off: we want to be very quick here, so
		3848	# save all maps without fsync, and later call a global sync
		3849	# (which in turn might be very very slow)
		3850	local $USE_FSYNC = 0;
		3851
		3852	cf::sync_job {
		3853	cf::write_runtime_sync; # external watchdog should not bark
		3854
		3855	# use a peculiar iteration method to avoid tripping on perl
		3856	# refcount bugs in for. also avoids problems with players
		3857	# and maps saved/destroyed asynchronously.
		3858	info "emergency_perl_save: begin player save\n";
		3859	for my $login (keys %cf::PLAYER) {
		3860	my $pl = $cf::PLAYER{$login} or next;
		3861	$pl->valid or next;
		3862	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3863	$pl->save;
		3864	}
		3865	info "emergency_perl_save: end player save\n";
		3866
		3867	cf::write_runtime_sync; # external watchdog should not bark
		3868
		3869	info "emergency_perl_save: begin map save\n";
		3870	for my $path (keys %cf::MAP) {
		3871	my $map = $cf::MAP{$path} or next;
		3872	$map->valid or next;
		3873	$map->save;
		3874	}
		3875	info "emergency_perl_save: end map save\n";
		3876
		3877	cf::write_runtime_sync; # external watchdog should not bark
		3878
		3879	info "emergency_perl_save: begin database checkpoint\n";
		3880	BDB::db_env_txn_checkpoint $DB_ENV;
		3881	info "emergency_perl_save: end database checkpoint\n";
		3882
		3883	info "emergency_perl_save: begin write uuid\n";
		3884	write_uuid_sync 1;
		3885	info "emergency_perl_save: end write uuid\n";
		3886
		3887	cf::write_runtime_sync; # external watchdog should not bark
		3888
		3889	trace "emergency_perl_save: syncing database to disk";
		3890	BDB::db_env_txn_checkpoint $DB_ENV;
		3891
		3892	info "emergency_perl_save: starting sync\n";
		3893	IO::AIO::aio_sync sub {
		3894	info "emergency_perl_save: finished sync\n";
		3895	};
		3896
		3897	cf::write_runtime_sync; # external watchdog should not bark
		3898
		3899	trace "emergency_perl_save: flushing outstanding aio requests";
		3900	while (IO::AIO::nreqs || BDB::nreqs) {
		3901	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3902	}
		3903
		3904	cf::write_runtime_sync; # external watchdog should not bark
		3905	};
		3906
		3907	info "emergency_perl_save: leave\n";
		3908	}
		3909
		3910	sub post_cleanup {
		3911	my ($make_core) = @_;
		3912
		3913	IO::AIO::flush;
		3914
		3915	error Carp::longmess "post_cleanup backtrace"
		3916	if $make_core;
		3917
		3918	my $fh = pidfile;
		3919	unlink $PIDFILE if <$fh> == $$;
		3920	}
		3921
		3922	# a safer delete_package, copied from Symbol
		3923	sub clear_package($) {
		3924	my $pkg = shift;
		3925
		3926	# expand to full symbol table name if needed
		3927	unless ($pkg =~ /^main::.*::$/) {
		3928	$pkg = "main$pkg" if $pkg =~ /^::/;
		3929	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3930	$pkg .= '::' unless $pkg =~ /::$/;
		3931	}
		3932
		3933	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3934	my $stem_symtab = *{$stem}{HASH};
		3935
		3936	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3937	or return;
		3938
		3939	# clear all symbols
		3940	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3941	for my $name (keys %$leaf_symtab) {
		3942	_gv_clear *{"$pkg$name"};
		3943	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3944	}
		3945	}
		3946
1906	sub reload() {	3947	sub do_reload_perl() {
1907	# can/must only be called in main	3948	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	3949	unless (in_main) {
1909	warn "can only reload from main coroutine\n";	3950	error "can only reload from main coroutine";
1910	return;	3951	return;
1911	}	3952	}
1912		3953
1913	warn "reloading...";	3954	return if $RELOAD++;
1914		3955
1915	local $FREEZE = 1;	3956	my $t1 = AE::time;
		3957
		3958	while ($RELOAD) {
		3959	cf::get_slot 0.1, -1, "reload_perl";
		3960	info "perl_reload: reloading...";
		3961
		3962	trace "perl_reload: entering sync_job";
		3963
		3964	cf::sync_job {
1916	cf::emergency_save;	3965	#cf::emergency_save;
1917		3966
1918	eval {	3967	trace "perl_reload: cancelling all extension coros";
1919	# if anything goes wrong in here, we should simply crash as we already saved
1920
1921	# cancel all watchers
1922	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}
1925
1926	# cancel all extension coros
1927	$_->cancel for values %EXT_CORO;	3968	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	3969	%EXT_CORO = ();
1929		3970
1930	# unload all extensions	3971	trace "perl_reload: removing commands";
1931	for (@exts) {	3972	%COMMAND = ();
1932	warn "unloading <$_>";
1933	unload_extension $_;
1934	}
1935		3973
1936	# unload all modules loaded from $LIBDIR	3974	trace "perl_reload: removing ext/exti commands";
1937	while (my ($k, $v) = each %INC) {	3975	%EXTCMD = ();
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3976	%EXTICMD = ();
1939		3977
1940	warn "removing <$k>";	3978	trace "perl_reload: unloading/nuking all extensions";
1941	delete $INC{$k};	3979	for my $pkg (@EXTS) {
		3980	trace "... unloading $pkg";
1942		3981
1943	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;
1945
1946	if (my $cb = $k->can ("unload_module")) {	3982	if (my $cb = $pkg->can ("unload")) {
		3983	eval {
1947	$cb->();	3984	$cb->($pkg);
		3985	1
		3986	} or error "$pkg unloaded, but with errors: $@";
		3987	}
		3988
		3989	trace "... clearing $pkg";
		3990	clear_package $pkg;
1948	}	3991	}
1949		3992
1950	Symbol::delete_package $k;	3993	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		3994	while (my ($k, $v) = each %INC) {
		3995	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3996
		3997	trace "... unloading $k";
		3998	delete $INC{$k};
		3999
		4000	$k =~ s/\.pm$//;
		4001	$k =~ s/\//::/g;
		4002
		4003	if (my $cb = $k->can ("unload_module")) {
		4004	$cb->();
		4005	}
		4006
		4007	clear_package $k;
1951	}	4008	}
1952		4009
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	4010	trace "perl_reload: getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	4011	clear_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4012	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		4013
1961	# remove register_script_function callbacks	4014	trace "perl_reload: unloading cf.pm \"a bit\"";
1962	# TODO
1963
1964	# unload cf.pm "a bit"
1965	delete $INC{"cf.pm"};	4015	delete $INC{"cf.pm"};
		4016	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1966		4017
1967	# don't, removes xs symbols, too,	4018	# don't, removes xs symbols, too,
1968	# and global variables created in xs	4019	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	4020	#clear_package __PACKAGE__;
1970		4021
1971	# reload cf.pm	4022	info "perl_reload: unload completed, starting to reload now";
1972	warn "reloading cf.pm";	4023
		4024	trace "perl_reload: reloading cf.pm";
1973	require cf;	4025	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4026	cf::_connect_to_perl_1;
1975		4027
1976	# load config and database again	4028	trace "perl_reload: loading config and database again";
1977	cf::cfg_load;	4029	cf::reload_config;
1978	cf::db_load;
1979		4030
1980	# load extensions	4031	trace "perl_reload: loading extensions";
1981	warn "load extensions";
1982	cf::load_extensions;	4032	cf::load_extensions;
1983		4033
1984	# reattach attachments to objects	4034	if ($REATTACH_ON_RELOAD) {
1985	warn "reattach";	4035	trace "perl_reload: reattaching attachments to objects/players";
1986	_global_reattach;	4036	_global_reattach; # objects, sockets
		4037	trace "perl_reload: reattaching attachments to maps";
		4038	reattach $_ for values %MAP;
		4039	trace "perl_reload: reattaching attachments to players";
		4040	reattach $_ for values %PLAYER;
		4041	}
		4042
		4043	cf::_post_init 1;
		4044
		4045	trace "perl_reload: leaving sync_job";
		4046
		4047	1
		4048	} or do {
		4049	error $@;
		4050	cf::cleanup "perl_reload: error, exiting.";
		4051	};
		4052
		4053	--$RELOAD;
		4054	}
		4055
		4056	$t1 = AE::time - $t1;
		4057	info "perl_reload: completed in ${t1}s\n";
		4058	};
		4059
		4060	our $RELOAD_WATCHER; # used only during reload
		4061
		4062	sub reload_perl() {
		4063	# doing reload synchronously and two reloads happen back-to-back,
		4064	# coro crashes during coro_state_free->destroy here.
		4065
		4066	$RELOAD_WATCHER ||= cf::async {
		4067	Coro::AIO::aio_wait cache_extensions;
		4068
		4069	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4070	do_reload_perl;
		4071	undef $RELOAD_WATCHER;
		4072	};
1987	};	4073	};
1988
1989	if ($@) {
1990	warn $@;
1991	warn "error while reloading, exiting.";
1992	exit 1;
1993	}
1994
1995	warn "reloaded successfully";
1996	};
1997
1998	#############################################################################
1999
2000	unless ($LINK_MAP) {
2001	$LINK_MAP = cf::map::new;
2002
2003	$LINK_MAP->width (41);
2004	$LINK_MAP->height (41);
2005	$LINK_MAP->alloc;
2006	$LINK_MAP->path ("{link}");
2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2009
2010	# dirty hack because... archetypes are not yet loaded
2011	Event->timer (
2012	after => 2,
2013	cb => sub {
2014	$_[0]->w->cancel;
2015
2016	# provide some exits "home"
2017	my $exit = cf::object::new "exit";
2018
2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2022
2023	$LINK_MAP->insert ($exit->clone, 19, 19);
2024	$LINK_MAP->insert ($exit->clone, 19, 20);
2025	$LINK_MAP->insert ($exit->clone, 19, 21);
2026	$LINK_MAP->insert ($exit->clone, 20, 19);
2027	$LINK_MAP->insert ($exit->clone, 20, 21);
2028	$LINK_MAP->insert ($exit->clone, 21, 19);
2029	$LINK_MAP->insert ($exit->clone, 21, 20);
2030	$LINK_MAP->insert ($exit->clone, 21, 21);
2031
2032	$exit->destroy;
2033	});
2034
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	4074	}
2040
2041	register "<global>", __PACKAGE__;
2042		4075
2043	register_command "reload" => sub {	4076	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	4077	my ($who, $arg) = @_;
2045		4078
2046	if ($who->flag (FLAG_WIZ)) {	4079	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	4080	$who->message ("reloading server.");
		4081	async {
		4082	$Coro::current->{desc} = "perl_reload";
		4083	reload_perl;
		4084	};
2050	}	4085	}
2051	};	4086	};
2052		4087
2053	unshift @INC, $LIBDIR;	4088	#############################################################################
2054		4089
2055	$TICK_WATCHER = Event->timer (	4090	my $bug_warning = 0;
2056	reentrant => 0,
2057	prio => 0,
2058	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,
2060	cb => sub {
2061	unless ($FREEZE) {
2062	cf::server_tick; # one server iteration
2063	$RUNTIME += $TICK;
2064	}
2065		4091
2066	$NEXT_TICK += $TICK;	4092	sub wait_for_tick() {
		4093	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2067		4094
2068	# if we are delayed by four ticks or more, skip them all	4095	$WAIT_FOR_TICK->wait;
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4096	}
2070		4097
2071	$TICK_WATCHER->at ($NEXT_TICK);	4098	sub wait_for_tick_begin() {
2072	$TICK_WATCHER->start;	4099	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4100
		4101	my $signal = new Coro::Signal;
		4102	push @WAIT_FOR_TICK_BEGIN, $signal;
		4103	$signal->wait;
		4104	}
		4105
		4106	sub tick {
		4107	if ($Coro::current != $Coro::main) {
		4108	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4109	unless ++$bug_warning > 10;
		4110	return;
2073	},	4111	}
2074	);
2075		4112
2076	IO::AIO::max_poll_time $TICK * 0.2;	4113	cf::one_tick; # one server iteration
2077		4114
2078	Event->io (	4115	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2079	fd => IO::AIO::poll_fileno,
2080	poll => 'r',
2081	prio => 5,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085		4116
2086	Event->timer (	4117	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2087	data => WF_AUTOCANCEL,	4118	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2088	after => 0,	4119	Coro::async_pool {
2089	interval => 10,	4120	$Coro::current->{desc} = "runtime saver";
2090	cb => sub {
2091	(Coro::unblock_sub {
2092	write_runtime	4121	write_runtime_sync
2093	or warn "ERROR: unable to write runtime file: $!";	4122	or error "ERROR: unable to write runtime file: $!";
2094	})->();	4123	};
2095	},	4124	}
2096	);	4125
		4126	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4127	$sig->send;
		4128	}
		4129	$WAIT_FOR_TICK->broadcast;
		4130
		4131	$LOAD = ($NOW - $TICK_START) / $TICK;
		4132	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4133
		4134	if (0) {
		4135	if ($NEXT_TICK) {
		4136	my $jitter = $TICK_START - $NEXT_TICK;
		4137	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4138	debug "jitter $JITTER\n";#d#
		4139	}
		4140	}
		4141	}
		4142
		4143	{
		4144	# configure BDB
		4145
		4146	BDB::min_parallel 16;
		4147	BDB::max_poll_reqs $TICK * 0.1;
		4148	$AnyEvent::BDB::WATCHER->priority (1);
		4149
		4150	unless ($DB_ENV) {
		4151	$DB_ENV = BDB::db_env_create;
		4152	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4153	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4154	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4155	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4156	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4157
		4158	cf::sync_job {
		4159	eval {
		4160	BDB::db_env_open
		4161	$DB_ENV,
		4162	$BDBDIR,
		4163	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4164	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4165	0666;
		4166
		4167	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4168	};
		4169
		4170	cf::cleanup "db_env_open(db): $@" if $@;
		4171	};
		4172	}
		4173
		4174	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4175	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4176	};
		4177	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4178	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4179	};
		4180	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4181	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4182	};
		4183	}
		4184
		4185	{
		4186	# configure IO::AIO
		4187
		4188	IO::AIO::min_parallel 8;
		4189	IO::AIO::max_poll_time $TICK * 0.1;
		4190	undef $AnyEvent::AIO::WATCHER;
		4191	}
		4192
		4193	our $_log_backtrace;
		4194	our $_log_backtrace_last;
		4195
		4196	sub _log_backtrace {
		4197	my ($msg, @addr) = @_;
		4198
		4199	$msg =~ s/\n$//;
		4200
		4201	if ($_log_backtrace_last eq $msg) {
		4202	LOG llevInfo, "[ABT] $msg\n";
		4203	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4204	# limit the # of concurrent backtraces
		4205	} elsif ($_log_backtrace < 2) {
		4206	$_log_backtrace_last = $msg;
		4207	++$_log_backtrace;
		4208	my $perl_bt = Carp::longmess $msg;
		4209	async {
		4210	$Coro::current->{desc} = "abt $msg";
		4211
		4212	my @bt = fork_call {
		4213	@addr = map { sprintf "%x", $_ } @addr;
		4214	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4215	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4216	or die "addr2line: $!";
		4217
		4218	my @funcs;
		4219	my @res = <$fh>;
		4220	chomp for @res;
		4221	while (@res) {
		4222	my ($func, $line) = splice @res, 0, 2, ();
		4223	push @funcs, "[$func] $line";
		4224	}
		4225
		4226	@funcs
		4227	};
		4228
		4229	LOG llevInfo, "[ABT] $perl_bt\n";
		4230	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4231	LOG llevInfo, "[ABT] $_\n" for @bt;
		4232	--$_log_backtrace;
		4233	};
		4234	} else {
		4235	LOG llevInfo, "[ABT] $msg\n";
		4236	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4237	}
		4238	}
		4239
		4240	# load additional modules
		4241	require "cf/$_.pm" for @EXTRA_MODULES;
		4242	cf::_connect_to_perl_2;
		4243
		4244	END { cf::emergency_save }
2097		4245
2098	1	4246	1
2099		4247

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