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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 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	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392
393	#############################################################################
394
395	=head2 ATTACHABLE OBJECTS	894	=head2 ATTACHABLE OBJECTS
396		895
397	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
398	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")
399	to it. All such attachable objects support the following methods.	898	to it. All such attachable objects support the following methods.
400		899
401	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>
402	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
403	crossfire+).	902	Deliantra).
404		903
405	=over 4	904	=over 4
406		905
407	=item $attachable->attach ($attachment, key => $value...)	906	=item $attachable->attach ($attachment, key => $value...)
408		907
…		…
452	=item cf::CLASS::attachment $name, ...	951	=item cf::CLASS::attachment $name, ...
453		952
454	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
455	given CLASS can refer to this attachment.	954	given CLASS can refer to this attachment.
456		955
457	Some classes such as crossfire maps and objects can specify attachments	956	Some classes such as deliantra maps and objects can specify attachments
458	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.
459		958
460	These calls expect any number of the following handler/hook descriptions:	959	These calls expect any number of the following handler/hook descriptions:
461		960
462	=over 4	961	=over 4
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	1021	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	1022	our @CB_MAP = ();
524		1023
525	my %attachment;	1024	my %attachment;
526		1025
		1026	sub cf::attachable::thawer_merge {
		1027	# simply override everything except _meta
		1028	local $_[0]{_meta};
		1029	%{$_[0]} = %{$_[1]};
		1030	}
		1031
527	sub _attach_cb($$$$) {	1032	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	1033	my ($registry, $event, $prio, $cb) = @_;
529		1034
530	use sort 'stable';	1035	use sort 'stable';
531		1036
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	1070	$registry = $CB_TYPE[$object_type] ||= [];
566		1071
567	} elsif ($type eq "subtype") {	1072	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	1073	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	1074	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1075	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		1076
572	} elsif ($type eq "package") {	1077	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	1078	my $pkg = shift @arg;
574		1079
575	while (my ($name, $id) = each %cb_id) {	1080	while (my ($name, $id) = each %cb_id) {
…		…
580		1085
581	} elsif (exists $cb_id{$type}) {	1086	} elsif (exists $cb_id{$type}) {
582	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1087	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
583		1088
584	} elsif (ref $type) {	1089	} elsif (ref $type) {
585	warn "attaching objects not supported, ignoring.\n";	1090	error "attaching objects not supported, ignoring.\n";
586		1091
587	} else {	1092	} else {
588	shift @arg;	1093	shift @arg;
589	warn "attach argument '$type' not supported, ignoring.\n";	1094	error "attach argument '$type' not supported, ignoring.\n";
590	}	1095	}
591	}	1096	}
592	}	1097	}
593		1098
594	sub _object_attach {	1099	sub _object_attach {
…		…
604	_attach $registry, $klass, @attach;	1109	_attach $registry, $klass, @attach;
605	}	1110	}
606		1111
607	$obj->{$name} = \%arg;	1112	$obj->{$name} = \%arg;
608	} else {	1113	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	1114	info "object uses attachment '$name' which is not available, postponing.\n";
610	}	1115	}
611		1116
612	$obj->{_attachment}{$name} = undef;	1117	$obj->{_attachment}{$name} = undef;
613	}	1118	}
614		1119
…		…
616	if (ref $_[0]) {	1121	if (ref $_[0]) {
617	_object_attach @_;	1122	_object_attach @_;
618	} else {	1123	} else {
619	_attach shift->_attach_registry, @_;	1124	_attach shift->_attach_registry, @_;
620	}	1125	}
		1126	_recalc_want;
621	};	1127	};
622		1128
623	# all those should be optimised	1129	# all those should be optimised
624	sub cf::attachable::detach {	1130	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	1131	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1134	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1135	reattach ($obj);
630	} else {	1136	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1137	Carp::croak "cannot, currently, detach class attachments";
632	}	1138	}
		1139	_recalc_want;
633	};	1140	};
634		1141
635	sub cf::attachable::attached {	1142	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1143	my ($obj, $name) = @_;
637		1144
…		…
652	";	1159	";
653	die if $@;	1160	die if $@;
654	}	1161	}
655		1162
656	our $override;	1163	our $override;
657	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?
658		1165
659	sub override {	1166	sub override {
660	$override = 1;	1167	$override = 1;
661	@invoke_results = ();	1168	@INVOKE_RESULTS = (@_);
662	}	1169	}
663		1170
664	sub do_invoke {	1171	sub do_invoke {
665	my $event = shift;	1172	my $event = shift;
666	my $callbacks = shift;	1173	my $callbacks = shift;
667		1174
668	@invoke_results = ();	1175	@INVOKE_RESULTS = ();
669		1176
670	local $override;	1177	local $override;
671		1178
672	for (@$callbacks) {	1179	for (@$callbacks) {
673	eval { &{$_->[1]} };	1180	eval { &{$_->[1]} };
674		1181
675	if ($@) {	1182	if ($@) {
676	warn "$@";
677	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1183	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
678	override;	1184	override;
679	}	1185	}
680		1186
681	return 1 if $override;	1187	return 1 if $override;
682	}	1188	}
683		1189
684	0	1190	0
685	}	1191	}
686		1192
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1193	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1194
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1195	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1196
691	Generate an object-specific event with the given arguments.	1197	Generate an object-specific event with the given arguments.
692		1198
693	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
694	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
695	results (if you must, access C<@cf::invoke_results> directly).	1201	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1202
697	=back	1203	=back
698		1204
699	=cut	1205	=cut
700		1206
701	#############################################################################	1207	#############################################################################
702	# 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	}
703		1251
704	sub reattach {	1252	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1253	# basically do the same as instantiate, without calling instantiate
706	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
707		1258
708	my $registry = $obj->registry;	1259	my $registry = $obj->registry;
709		1260
710	@$registry = ();	1261	@$registry = ();
711		1262
…		…
716	for (@$attach) {	1267	for (@$attach) {
717	my ($klass, @attach) = @$_;	1268	my ($klass, @attach) = @$_;
718	_attach $registry, $klass, @attach;	1269	_attach $registry, $klass, @attach;
719	}	1270	}
720	} else {	1271	} else {
721	warn "object uses attachment '$name' that is not available, postponing.\n";	1272	info "object uses attachment '$name' that is not available, postponing.\n";
722	}	1273	}
723	}	1274	}
724	}	1275	}
725		1276
726	cf::attachable->attach (	1277	cf::attachable->attach (
727	prio => -1000000,	1278	prio => -1000000,
728	on_instantiate => sub {	1279	on_instantiate => sub {
729	my ($obj, $data) = @_;	1280	my ($obj, $data) = @_;
730		1281
731	$data = from_json $data;	1282	$data = decode_json $data;
732		1283
733	for (@$data) {	1284	for (@$data) {
734	my ($name, $args) = @$_;	1285	my ($name, $args) = @$_;
735		1286
736	$obj->attach ($name, %{$args || {} });	1287	$obj->attach ($name, %{$args || {} });
…		…
752	sub object_freezer_save {	1303	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1304	my ($filename, $rdata, $objs) = @_;
754		1305
755	sync_job {	1306	sync_job {
756	if (length $$rdata) {	1307	if (length $$rdata) {
		1308	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1309	trace sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1310	$decname, length $$rdata, scalar @$objs
		1311	if $VERBOSE_IO;
759		1312
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1313	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1314	aio_chmod $fh, SAVE_MODE;
762	aio_write $fh, 0, (length $$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;
763	aio_fsync $fh;	1318	aio_fsync $fh;
		1319	}
764	close $fh;	1320	aio_close $fh;
765		1321
766	if (@$objs) {	1322	if (@$objs) {
767	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) {
768	chmod SAVE_MODE, $fh;	1324	aio_chmod $fh, SAVE_MODE;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1325	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
770	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;
771	aio_fsync $fh;	1329	aio_fsync $fh;
		1330	}
772	close $fh;	1331	aio_close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1332	aio_rename "$filename.pst~", "$filename.pst";
774	}	1333	}
775	} else {	1334	} else {
776	aio_unlink "$filename.pst";	1335	aio_unlink "$filename.pst";
777	}	1336	}
778		1337
779	aio_rename "$filename~", $filename;	1338	aio_rename "$filename~", $filename;
		1339
		1340	$filename =~ s%/[^/]+$%%;
		1341	aio_pathsync $filename if $cf::USE_FSYNC;
780	} else {	1342	} else {
781	warn "FATAL: $filename~: $!\n";	1343	error "unable to save objects: $filename~: $!\n";
782	}	1344	}
783	} else {	1345	} else {
784	aio_unlink $filename;	1346	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1347	aio_unlink "$filename.pst";
786	}	1348	}
787	}	1349	};
788	}	1350	}
789		1351
790	sub object_freezer_as_string {	1352	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1353	my ($rdata, $objs) = @_;
792		1354
…		…
804	or return;	1366	or return;
805		1367
806	unless (aio_stat "$filename.pst") {	1368	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1369	(aio_load "$filename.pst", $av) >= 0
808	or return;	1370	or return;
		1371
809	$av = eval { (Storable::thaw <$av>)->{objs} };	1372	my $st = eval { Coro::Storable::thaw $av };
		1373	$av = $st->{objs};
810	}	1374	}
811		1375
		1376	utf8::decode (my $decname = $filename);
		1377	trace sprintf "loading %s (%d,%d)\n",
		1378	$decname, length $data, scalar @{$av || []}
		1379	if $VERBOSE_IO;
		1380
812	return ($data, $av);	1381	($data, $av)
813	}	1382	}
		1383
		1384	=head2 COMMAND CALLBACKS
		1385
		1386	=over 4
		1387
		1388	=cut
814		1389
815	#############################################################################	1390	#############################################################################
816	# command handling &c	1391	# command handling &c
817		1392
818	=item cf::register_command $name => \&callback($ob,$args);	1393	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1406	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1407	}
833		1408
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1409	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1410
836	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.
837		1416
838	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
839	called.	1418	called.
840		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
841	=cut	1431	=cut
842		1432
843	sub register_extcmd {	1433	sub register_extcmd {
844	my ($name, $cb) = @_;	1434	my ($name, $cb) = @_;
845		1435
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1436	$EXTCMD{$name} = $cb;
850	}	1437	}
		1438
		1439	sub register_exticmd {
		1440	my ($name, $cb) = @_;
		1441
		1442	$EXTICMD{$name} = $cb;
		1443	}
		1444
		1445	use File::Glob ();
851		1446
852	cf::player->attach (	1447	cf::player->attach (
853	on_command => sub {	1448	on_unknown_command => sub {
854	my ($pl, $name, $params) = @_;	1449	my ($pl, $name, $params) = @_;
855		1450
856	my $cb = $COMMAND{$name}	1451	my $cb = $COMMAND{$name}
857	or return;	1452	or return;
858		1453
…		…
863	cf::override;	1458	cf::override;
864	},	1459	},
865	on_extcmd => sub {	1460	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1461	my ($pl, $buf) = @_;
867		1462
868	my $msg = eval { from_json $buf };	1463	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1464
870	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
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1473	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1474	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1475	}
		1476
		1477	$pl->ext_reply ($reply, @reply)
		1478	if $reply;
		1479
876	} else {	1480	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1481	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1482	}
879		1483
880	cf::override;	1484	cf::override;
881	},	1485	},
882	);	1486	);
883		1487
884	sub register {	1488	# "readahead" all extensions
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1489	sub cache_extensions {
891	my ($path) = @_;	1490	my $grp = IO::AIO::aio_group;
892		1491
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1492	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
894	my $base = $1;	1493	for (grep /\.ext$/, @{$_[0]}) {
895	my $pkg = $1;	1494	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898
899	warn "loading '$path' into '$pkg'\n";
900
901	open my $fh, "<:utf8", $path
902	or die "$path: $!";
903
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }
933
934	# remove commands
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}	1495	}
943	}	1496	};
944		1497
945	# remove extcmds	1498	$grp
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	1499	}
959		1500
960	sub load_extensions {	1501	sub load_extensions {
		1502	info "loading extensions...";
		1503
		1504	cf::sync_job {
		1505	my %todo;
		1506
961	for my $ext (<$LIBDIR/*.ext>) {	1507	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1508	next unless -r $path;
963	eval {	1509
964	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	}
965	1	1573	}
966	} 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	}
967	}	1586	};
968	}	1587	}
969		1588
970	#############################################################################	1589	#############################################################################
971	# load/save/clean perl data associated with a map
972		1590
973	*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($) {
974	my ($map) = @_;	1645	my ($login) = @_;
975		1646
976	my $path = $map->tmpname;	1647	$cf::PLAYER{$login}
977	defined $path or return;	1648	or !aio_stat path $login
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}	1649	}
990		1650
991	# 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
992	cf::player->attach (	1678	cf::player->attach (
993	on_load => sub {	1679	on_load => sub {
994	my ($pl, $path) = @_;	1680	my ($pl, $path) = @_;
995		1681
996	for my $o (all_objects $pl->ob) {	1682	# restore slots saved in save, below
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1683	my $slots = delete $pl->{_slots};
998	$o->set_ob_key_value ("_perl_data");
999		1684
1000	%$o = %{ Storable::thaw pack "H*", $value };	1685	$pl->ob->current_weapon ($slots->[0]);
1001	}	1686	$pl->combat_ob ($slots->[1]);
1002	}	1687	$pl->ranged_ob ($slots->[2]);
1003	},	1688	},
1004	);	1689	);
1005		1690
1006	#############################################################################	1691	sub save($) {
		1692	my ($pl) = @_;
1007		1693
1008	=head2 CORE EXTENSIONS	1694	return if $pl->{deny_save};
1009		1695
1010	Functions and methods that extend core crossfire objects.	1696	my $path = path $pl;
		1697	my $guard = cf::lock_acquire "user_save:$path";
1011		1698
1012	=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($$@) {
		1872	my ($self, $type, @msg) = @_;
		1873
		1874	$self->ns->ext_msg ($type, @msg);
		1875	}
		1876
		1877	=head3 cf::region
1013		1878
1014	=over 4	1879	=over 4
1015		1880
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut	1881	=cut
1021		1882
1022	sub cf::player::exists($) {	1883	package cf::region;
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026		1884
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1885	=item cf::region::find_by_path $path
1028		1886
1029	Sends an ext reply to the player.	1887	Tries to decuce the likely region for a map knowing only its path.
1030		1888
1031	=cut	1889	=cut
1032		1890
1033	sub cf::player::ext_reply($$$%) {	1891	sub find_by_path($) {
1034	my ($self, $id, %msg) = @_;	1892	my ($path) = @_;
1035		1893
1036	$msg{msgid} = $id;	1894	$path =~ s/^~[^\/]*//; # skip ~login
1037		1895
1038	$self->send ("ext " . to_json \%msg);	1896	my ($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
1039	}	1906	}
1040		1907
1041	=back	1908	=back
1042
1043		1909
1044	=head3 cf::map	1910	=head3 cf::map
1045		1911
1046	=over 4	1912	=over 4
1047		1913
…		…
1050	package cf::map;	1916	package cf::map;
1051		1917
1052	use Fcntl;	1918	use Fcntl;
1053	use Coro::AIO;	1919	use Coro::AIO;
1054		1920
		1921	use overload
		1922	'""' => \&as_string,
		1923	fallback => 1;
		1924
1055	our $MAX_RESET = 7200;	1925	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1926	our $DEFAULT_RESET = 3000;
1057		1927
1058	sub generate_random_map {	1928	sub generate_random_map {
		1929	my ($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 {
1059	my ($path, $rmp) = @_;	1967	my ($path, $base) = @_;
1060		1968
1061	# mit "rum" bekleckern, nicht	1969	$path = "$path"; # make sure it's a string
1062	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
1063	$path,	1998	$path
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})
1075	}	1999	}
1076		2000
1077	# and all this just because we cannot iterate over	2001	sub new_from_path {
1078	# all maps in C++...	2002	my (undef, $path, $base) = @_;
1079	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 '$base')";
		2018	()
		2019	}
		2020
		2021	# may re-bless or do other evil things
		2022	sub init {
1080	my ($change) = @_;	2023	my ($self) = @_;
1081		2024
1082	$_->change_map_light ($change) for values %cf::MAP;	2025	$self
1083	}	2026	}
1084		2027
		2028	sub as_string {
		2029	my ($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
1085	sub try_load_header($) {	2078	sub load_header_from($) {
1086	my ($path) = @_;	2079	my ($self, $path) = @_;
1087		2080
1088	utf8::encode $path;	2081	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	2082	my $f = new_from_file cf::object::thawer $path
1090	or return;	2083	or return;
1091		2084
1092	my $map = cf::map::new	2085	$self->_load_header ($f)
1093	or return;	2086	or return;
1094		2087
1095	$map->load_header ($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
1096	or return;	2138	or return;
		2139	$self->prepare_orig;
		2140	}
1097		2141
1098	$map->{load_path} = $path;	2142	$self->{deny_reset} = 1
		2143	if $self->no_reset;
1099		2144
1100	$map	2145	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	2146	unless $self->default_region;
1102		2147
		2148	1
		2149	}
		2150
		2151	sub find;
1103	sub find_map {	2152	sub find {
1104	my ($path, $origin) = @_;	2153	my ($path, $origin) = @_;
1105		2154
1106	#warn "find_map<$path,$origin>\n";#d#	2155	cf::cede_to_tick;
1107		2156
1108	$path = new cf::path $path, $origin && $origin->path;	2157	$path = normalise $path, $origin;
1109	my $key = $path->as_string;
1110		2158
		2159	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2160	my $guard2 = cf::lock_acquire "map_find:$path";
		2161
1111	$cf::MAP{$key} || do {	2162	$cf::MAP{$path} || do {
1112	# do it the slow way	2163	my $map = new_from_path cf::map $path
1113	my $map = try_load_header $path->save_path;
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	2164	or return;
1127		2165
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	2166	$map->{last_save} = $cf::RUNTIME;
1139		2167
1140	if ($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;
1141	$map->reset;	2176	$map->reset;
1142	$map = find_map $path;	2177	return find $path;
1143	}	2178	}
1144		2179
1145	$cf::MAP{$key} = $map	2180	$cf::MAP{$path} = $map
1146	}	2181	}
1147	}	2182	}
		2183
		2184	sub pre_load { }
		2185	#sub post_load { } # XS
1148		2186
1149	sub load {	2187	sub load {
1150	my ($self) = @_;	2188	my ($self) = @_;
1151		2189
1152	return if $self->in_memory != cf::MAP_SWAPPED;	2190	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		2191
1156	my $path = $self->{path};	2192	my $path = $self->{path};
1157		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
1158	$self->alloc;	2200	$self->alloc;
1159	$self->load_objects ($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)
1160	or return;	2209	or return;
1161		2210
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2211	$self->post_load_original
1163	if delete $self->{load_original};	2212	if delete $self->{load_original};
1164		2213
1165	if (my $uniq = $path->uniq_path) {	2214	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	2215	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	2216	unless (aio_stat $uniq) {
		2217	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	2218	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	2219	$self->_load_objects ($f);
		2220	$f->resolve_delayed_derefs;
		2221	}
		2222	}
1170	}	2223	}
1171	}
1172		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;
1173	# now do the right thing for maps	2234	# now do the right thing for maps
1174	$self->link_multipart_objects;	2235	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	2236	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	2237	unless $self->difficulty;
1186	$self->activate;	2238	cf::cede_to_tick;
		2239
		2240	unless ($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
1187	}	2254	1
1188
1189	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	2255	}
1191		2256
1192	sub load_map_sync {	2257	# customize the map for a given player, i.e.
		2258	# return the _real_ map. used by e.g. per-player
		2259	# maps to change the path to ~playername/mappath
		2260	sub customise_for {
		2261	my ($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	$self
		2270	}
		2271
		2272	sub find_sync {
1193	my ($path, $origin) = @_;	2273	my ($path, $origin) = @_;
1194		2274
1195	#warn "load_map_sync<$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;
1196		2278
1197	cf::sync_job {	2279	find $path, $origin
1198	my $map = cf::map::find_map $path, $origin	2280	}
1199	or return;	2281
		2282	sub do_load_sync {
		2283	my ($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
1200	$map->load;	2289	$map->load;
1201	$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);
1202	}	2354	}
1203	}	2355	}
1204		2356
1205	sub save {	2357	sub save {
1206	my ($self) = @_;	2358	my ($self) = @_;
1207		2359
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2360	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2361
1211	$self->{last_save} = $cf::RUNTIME;	2362	$self->_save;
1212
1213	return unless $self->dirty;
1214
1215	$self->{load_path} = $save;
1216
1217	return if $self->{deny_save};
1218
1219	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}
1225	}	2363	}
1226		2364
1227	sub swap_out {	2365	sub swap_out {
1228	my ($self) = @_;	2366	my ($self) = @_;
1229		2367
		2368	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2369
		2370	return if !$self->linkable;
		2371	return if $self->{deny_save};
1230	return if $self->players;	2372	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};
1233		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
1234	$self->save;	2380	$self->_save;
		2381
		2382	# then free the map
1235	$self->clear;	2383	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2384	}
1238		2385
1239	sub reset_at {	2386	sub reset_at {
1240	my ($self) = @_;	2387	my ($self) = @_;
1241		2388
1242	# TODO: safety, remove and allow resettable per-player maps	2389	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2390	return 1e99 if $self->{deny_reset};
1245		2391
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2392	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2393	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2394
1250	$time + $to	2395	$time + $to
1251	}	2396	}
1252		2397
1253	sub should_reset {	2398	sub should_reset {
1254	my ($self) = @_;	2399	my ($self) = @_;
1255		2400
1256	$self->reset_at <= $cf::RUNTIME	2401	$self->reset_at <= $cf::RUNTIME
1257	}	2402	}
1258		2403
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	2404	sub reset {
1268	my ($self) = @_;	2405	my ($self) = @_;
1269		2406
		2407	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2408
1270	return if $self->players;	2409	return if $self->players;
1271	return if $self->{path}{user_rel};#d#
1272		2410
1273	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	}
1274		2422
1275	delete $cf::MAP{$self->path};	2423	delete $cf::MAP{$self->path};
1276		2424
		2425	$self->deactivate;
1277	$_->clear_links_to ($self) for values %cf::MAP;	2426	$_->clear_links_to ($self) for values %cf::MAP;
		2427	$self->clear;
1278		2428
1279	$self->unlink_save;	2429	$self->unlink_save;
1280	$self->destroy;	2430	$self->destroy;
1281	}	2431	}
1282		2432
1283	sub customise_for {	2433	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		2434
1286	if ($map->per_player) {	2435	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2436	my ($self) = @_;
		2437
1288	}	2438	{
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
1289		2440
1290	$map	2441	delete $cf::MAP{$self->path};
1291	}
1292		2442
1293	sub emergency_save {	2443	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		2444
1296	warn "enter emergency map save\n";	2445	bless $self, "cf::map::wrap";
		2446	delete $self->{deny_reset};
		2447	$self->{deny_save} = 1;
		2448	$self->reset_timeout (1);
		2449	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		2450
1298	cf::sync_job {	2451	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";
1300	$_->save for values %cf::MAP;
1301	};	2452	}
1302		2453
1303	warn "end emergency map save\n";	2454	$self->reset; # polite request, might not happen
		2455	}
		2456
		2457	=item $maps = cf::map::tmp_maps
		2458
		2459	Returns an arrayref with all map paths of currently instantiated and saved
		2460	maps. May block.
		2461
		2462	=cut
		2463
		2464	sub tmp_maps() {
		2465	[
		2466	map {
		2467	utf8::decode $_;
		2468	/\.map$/
		2469	? normalise $_
		2470	: ()
		2471	} @{ aio_readdir $TMPDIR or [] }
		2472	]
		2473	}
		2474
		2475	=item $maps = cf::map::random_maps
		2476
		2477	Returns an arrayref with all map paths of currently instantiated and saved
		2478	random maps. May block.
		2479
		2480	=cut
		2481
		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;
		2539	}
		2540
		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	}
1304	}	2596	}
1305		2597
1306	package cf;	2598	package cf;
1307		2599
1308	=back	2600	=back
1309
1310		2601
1311	=head3 cf::object::player	2602	=head3 cf::object::player
1312		2603
1313	=over 4	2604	=over 4
1314		2605
…		…
1317	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>
1318	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
1319	dialogue with the given NPC character.	2610	dialogue with the given NPC character.
1320		2611
1321	=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	};
1322		2627
1323	# rough implementation of a future "reply" method that works	2628	# rough implementation of a future "reply" method that works
1324	# with dialog boxes.	2629	# with dialog boxes.
1325	#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
1326	sub cf::object::player::reply($$$;$) {	2631	sub cf::object::player::reply($$$;$) {
…		…
1328		2633
1329	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1330		2635
1331	if ($self->{record_replies}) {	2636	if ($self->{record_replies}) {
1332	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2638
1333	} 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 {
1334	$msg = $npc->name . " says: $msg" if $npc;	2647	$msg = $npc->name . " says: $msg" if $npc;
1335	$self->message ($msg, $flags);	2648	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2649	}
1336	}	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 (@_);
1337	}	2661	}
1338		2662
1339	=item $player_object->may ("access")	2663	=item $player_object->may ("access")
1340		2664
1341	Returns wether the given player is authorized to access resource "access"	2665	Returns wether the given player is authorized to access resource "access"
…		…
1350	(ref $cf::CFG{"may_$access"}	2674	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2675	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	2676	: $cf::CFG{"may_$access"})
1353	}	2677	}
1354		2678
		2679	=item $player_object->enter_link
		2680
		2681	Freezes the player and moves him/her to a special map (C<{link}>).
		2682
		2683	The player should be reasonably safe there for short amounts of time (e.g.
		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.
		2689
		2690	=item $player_object->leave_link ($map, $x, $y)
		2691
		2692	Moves the player out of the special C<{link}> map onto the specified
		2693	map. If the map is not valid (or omitted), the player will be moved back
		2694	to the location he/she was before the call to C<enter_link>, or, if that
		2695	fails, to the emergency map position.
		2696
		2697	Might block.
		2698
		2699	=cut
		2700
		2701	sub link_map {
		2702	unless ($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	$LINK_MAP
		2709	}
		2710
1355	sub cf::object::player::enter_link {	2711	sub cf::object::player::enter_link {
1356	my ($self) = @_;	2712	my ($self) = @_;
1357		2713
1358	return if $self->map == $LINK_MAP;
1359
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;
1362
1363	$self->enter_map ($LINK_MAP, 20, 20);
1364	$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);
1365	}	2724	}
1366		2725
1367	sub cf::object::player::leave_link {	2726	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	2727	my ($self, $map, $x, $y) = @_;
1369		2728
		2729	return unless $self->contr->active;
		2730
1370	my $link_pos = delete $self->{_link_pos};	2731	my $link_pos = delete $self->{_link_pos};
1371		2732
1372	unless ($map) {	2733	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	2734	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	2735	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	2736	$map = cf::map::find $map;
1378		2737
1379	unless ($map) {	2738	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	2739	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	2740	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	2741	or die "FATAL: cannot load emergency map\n";
1383	}	2742	}
1384	}	2743	}
1385		2744
1386	($x, $y) = (-1, -1)	2745	($x, $y) = (-1, -1)
1387	unless (defined $x) && (defined $y);	2746	unless (defined $x) && (defined $y);
1388		2747
1389	# use -1 or undef as default coordinates, not 0, 0	2748	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	2749	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	2750	if $x <= 0 && $y <= 0;
1392		2751
1393	$map->load;	2752	$map->load;
1394		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
1395	$self->activate_recursive;	2761	$self->activate_recursive;
1396	$self->enter_map ($map, $x, $y);	2762	}
1397	}
1398		2763
1399	=item $player_object->goto_map ($map, $x, $y)	2764	}
1400		2765
1401	=cut	2766	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1402		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 $GOTOGEN;
		2780
1403	sub cf::object::player::goto_map {	2781	sub cf::object::player::goto {
1404	my ($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;
1405		2792
1406	$self->enter_link;	2793	$self->enter_link;
1407		2794
1408	(Coro::async {	2795	(async {
1409	$path = new cf::path $path;	2796	$Coro::current->{desc} = "player::goto $path $x $y";
1410		2797
1411	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) {
1412	$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	}
1413		2826
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	2827	$map
		2828	};
1416		2829
		2830	if ($@) {
		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 $@;
		2833	}
		2834
		2835	if ($gen == $self->{_goto_generation}) {
		2836	delete $self->{_goto_generation};
1417	$self->leave_link ($map, $x, $y);	2837	$self->leave_link ($map, $x, $y);
		2838	}
		2839
		2840	$done->($self) if $done;
1418	})->prio (1);	2841	})->prio (1);
1419	}	2842	}
1420		2843
1421	=item $player_object->enter_exit ($exit_object)	2844	=item $player_object->enter_exit ($exit_object)
1422		2845
…		…
1424		2847
1425	sub parse_random_map_params {	2848	sub parse_random_map_params {
1426	my ($spec) = @_;	2849	my ($spec) = @_;
1427		2850
1428	my $rmp = { # defaults	2851	my $rmp = { # defaults
1429	xsize => 10,	2852	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	2853	ysize => (cf::rndm 15, 40),
		2854	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2855	#layout => string,
1431	};	2856	};
1432		2857
1433	for (split /\n/, $spec) {	2858	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	2859	my ($k, $v) = split /\s+/, $_, 2;
1435		2860
…		…
1447	# that depends on the exit object	2872	# that depends on the exit object
1448		2873
1449	my $rmp = parse_random_map_params $exit->msg;	2874	my $rmp = parse_random_map_params $exit->msg;
1450		2875
1451	if ($exit->map) {	2876	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	2877	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	2878	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	2879	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	2880	$rmp->{origin_y} = $exit->y;
		2881
		2882	$exit->map->touch;
1456	}	2883	}
1457		2884
1458	$rmp->{random_seed} ||= $exit->random_seed;	2885	$rmp->{random_seed} ||= $exit->random_seed;
1459		2886
1460	my $data = cf::to_json $rmp;	2887	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1461	my $md5 = Digest::MD5::md5_hex $data;	2888	my $md5 = Digest::MD5::md5_hex $data;
		2889	my $meta = "$RANDOMDIR/$md5.meta";
1462		2890
1463	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) {
1464	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;
1465		2895
		2896	my $slaying = "?random/$md5";
		2897
		2898	if ($exit->valid) {
1466	$exit->slaying ("?random/$md5");	2899	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	2900	$exit->msg (undef);
		2901	}
1468	}	2902	}
1469	}	2903	}
1470		2904
1471	sub cf::object::player::enter_exit {	2905	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	2906	my ($self, $exit) = @_;
1473		2907
1474	return unless $self->type == cf::PLAYER;	2908	return unless $self->type == cf::PLAYER;
1475		2909
1476	$self->enter_link;	2910	$self->enter_link;
1477		2911
1478	(Coro::async {	2912	(async {
		2913	$Coro::current->{desc} = "enter_exit";
		2914
1479	unless (eval {	2915	unless (eval {
		2916	$self->deactivate_recursive; # just to be sure
1480		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
1481	prepare_random_map $exit	2929	prepare_random_map $exit
		2930	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2931
1482	if $exit->slaying eq "/!";	2932	$map = $exit->slaying;
1483		2933
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2934	} elsif ($slaying eq '!up') {
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2935	$map = $exit->map->tile_path (cf::TILE_UP);
		2936	$x = $exit->x;
		2937	$y = $exit->y;
1486		2938
		2939	} elsif ($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
1487	1;	2951	1
1488	}) {	2952	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	2953	$self->message ("Something went wrong deep within the deliantra server. "
1490	. "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. "
1491	. "Please report this to the dungeon master",	2955	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	2956	cf::NDI_UNIQUE | cf::NDI_RED);
1493		2957
1494	warn "ERROR in enter_exit: $@";	2958	error "ERROR in enter_exit: $@";
1495	$self->leave_link;	2959	$self->leave_link;
1496	}	2960	}
1497	})->prio (1);	2961	})->prio (1);
1498	}	2962	}
1499		2963
…		…
1510		2974
1511	sub cf::client::send_drawinfo {	2975	sub cf::client::send_drawinfo {
1512	my ($self, $text, $flags) = @_;	2976	my ($self, $text, $flags) = @_;
1513		2977
1514	utf8::encode $text;	2978	utf8::encode $text;
1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2979	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1516	}	2980	}
1517		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	}
1518		3203
1519	=item $success = $client->query ($flags, "text", \&cb)	3204	=item $success = $client->query ($flags, "text", \&cb)
1520		3205
1521	Queues a query to the client, calling the given callback with	3206	Queues a query to the client, calling the given callback with
1522	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>,
1523	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>.
1524		3209
1525	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
1526	reliable at some point in the future.	3211	become reliable at some point in the future.
1527		3212
1528	=cut	3213	=cut
1529		3214
1530	sub cf::client::query {	3215	sub cf::client::query {
1531	my ($self, $flags, $text, $cb) = @_;	3216	my ($self, $flags, $text, $cb) = @_;
…		…
1539	utf8::encode $text;	3224	utf8::encode $text;
1540	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3225	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1541		3226
1542	$self->send_packet ($self->{query_queue}[0][0])	3227	$self->send_packet ($self->{query_queue}[0][0])
1543	if @{ $self->{query_queue} } == 1;	3228	if @{ $self->{query_queue} } == 1;
		3229
		3230	1
1544	}	3231	}
1545		3232
1546	cf::client->attach (	3233	cf::client->attach (
		3234	on_connect => sub {
		3235	my ($ns) = @_;
		3236
		3237	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3238	},
1547	on_reply => sub {	3239	on_reply => sub {
1548	my ($ns, $msg) = @_;	3240	my ($ns, $msg) = @_;
1549		3241
1550	# this weird shuffling is so that direct followup queries	3242	# this weird shuffling is so that direct followup queries
1551	# get handled first	3243	# get handled first
1552	my $queue = delete $ns->{query_queue};	3244	my $queue = delete $ns->{query_queue}
		3245	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		3246
1554	(shift @$queue)->[1]->($msg);	3247	(shift @$queue)->[1]->($msg);
		3248	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		3249
1556	push @{ $ns->{query_queue} }, @$queue;	3250	push @{ $ns->{query_queue} }, @$queue;
1557		3251
1558	if (@{ $ns->{query_queue} } == @$queue) {	3252	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	3253	if (@$queue) {
…		…
1561	} else {	3255	} else {
1562	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3256	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1563	}	3257	}
1564	}	3258	}
1565	},	3259	},
		3260	on_exticmd => sub {
		3261	my ($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	},
1566	);	3286	);
1567		3287
1568	=item $client->coro (\&cb)	3288	=item $client->async (\&cb)
1569		3289
1570	Create a new coroutine, running the specified callback. The coroutine will	3290	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	3291	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	3292	or loss of connection).
1573		3293
1574	=cut	3294	=cut
1575		3295
1576	sub cf::client::coro {	3296	sub cf::client::async {
1577	my ($self, $cb) = @_;	3297	my ($self, $cb) = @_;
1578		3298
1579	my $coro; $coro = async {	3299	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		3300
1586	$coro->on_destroy (sub {	3301	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	3302	delete $self->{_coro}{$coro+0};
1588	});	3303	});
1589		3304
…		…
1591		3306
1592	$coro	3307	$coro
1593	}	3308	}
1594		3309
1595	cf::client->attach (	3310	cf::client->attach (
1596	on_destroy => sub {	3311	on_client_destroy => sub {
1597	my ($ns) = @_;	3312	my ($ns) = @_;
1598		3313
1599	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3314	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1600	},	3315	},
1601	);	3316	);
…		…
1616	our $safe = new Safe "safe";	3331	our $safe = new Safe "safe";
1617	our $safe_hole = new Safe::Hole;	3332	our $safe_hole = new Safe::Hole;
1618		3333
1619	$SIG{FPE} = 'IGNORE';	3334	$SIG{FPE} = 'IGNORE';
1620		3335
1621	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3336	$safe->permit_only (Opcode::opset qw(
		3337	:base_core :base_mem :base_orig :base_math :base_loop
		3338	grepstart grepwhile mapstart mapwhile
		3339	sort time
		3340	));
1622		3341
1623	# here we export the classes and methods available to script code	3342	# here we export the classes and methods available to script code
1624		3343
1625	=pod	3344	=pod
1626		3345
1627	The following fucntions and emthods are available within a safe environment:	3346	The following functions and methods are available within a safe environment:
1628		3347
1629	cf::object contr pay_amount pay_player map	3348	cf::object
		3349	contr pay_amount pay_player map x y force_find force_add destroy
		3350	insert remove name archname title slaying race decrease split
		3351	value
		3352
1630	cf::object::player player	3353	cf::object::player
1631	cf::player peaceful	3354	player
1632	cf::map trigger	3355
		3356	cf::player
		3357	peaceful
		3358
		3359	cf::map
		3360	trigger
1633		3361
1634	=cut	3362	=cut
1635		3363
1636	for (	3364	for (
1637	["cf::object" => qw(contr pay_amount pay_player map)],	3365	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3366	insert remove inv nrof name archname title slaying race
		3367	decrease split destroy change_exp value msg lore send_msg)],
1638	["cf::object::player" => qw(player)],	3368	["cf::object::player" => qw(player)],
1639	["cf::player" => qw(peaceful)],	3369	["cf::player" => qw(peaceful send_msg)],
1640	["cf::map" => qw(trigger)],	3370	["cf::map" => qw(trigger)],
1641	) {	3371	) {
1642	no strict 'refs';
1643	my ($pkg, @funs) = @$_;	3372	my ($pkg, @funs) = @$_;
1644	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3373	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1645	for @funs;	3374	for @funs;
1646	}	3375	}
1647		3376
…		…
1662		3391
1663	my $qcode = $code;	3392	my $qcode = $code;
1664	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3393	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1665	$qcode =~ s/\n/\\n/g;	3394	$qcode =~ s/\n/\\n/g;
1666		3395
		3396	%vars = (_dummy => 0) unless %vars;
		3397
		3398	my @res;
1667	local $_;	3399	local $_;
1668	local @safe::cf::_safe_eval_args = values %vars;
1669		3400
1670	my $eval =	3401	my $eval =
1671	"do {\n"	3402	"do {\n"
1672	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3403	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1673	. "#line 0 \"{$qcode}\"\n"	3404	. "#line 0 \"{$qcode}\"\n"
1674	. $code	3405	. $code
1675	. "\n}"	3406	. "\n}"
1676	;	3407	;
1677		3408
		3409	if ($CFG{safe_eval}) {
1678	sub_generation_inc;	3410	sub_generation_inc;
		3411	local @safe::cf::_safe_eval_args = values %vars;
1679	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3412	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1680	sub_generation_inc;	3413	sub_generation_inc;
		3414	} else {
		3415	local @cf::_safe_eval_args = values %vars;
		3416	@res = wantarray ? eval eval : scalar eval $eval;
		3417	}
1681		3418
1682	if ($@) {	3419	if ($@) {
1683	warn "$@";	3420	warn "$@",
1684	warn "while executing safe code '$code'\n";	3421	"while executing safe code '$code'\n",
1685	warn "with arguments " . (join " ", %vars) . "\n";	3422	"with arguments " . (join " ", %vars) . "\n";
1686	}	3423	}
1687		3424
1688	wantarray ? @res : $res[0]	3425	wantarray ? @res : $res[0]
1689	}	3426	}
1690		3427
…		…
1704	=cut	3441	=cut
1705		3442
1706	sub register_script_function {	3443	sub register_script_function {
1707	my ($fun, $cb) = @_;	3444	my ($fun, $cb) = @_;
1708		3445
1709	no strict 'refs';	3446	$fun = "safe::$fun" if $CFG{safe_eval};
1710	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3447	*$fun = $safe_hole->wrap ($cb);
1711	}	3448	}
1712		3449
1713	=back	3450	=back
1714		3451
1715	=cut	3452	=cut
1716		3453
1717	#############################################################################	3454	#############################################################################
		3455	# the server's init and main functions
1718		3456
1719	=head2 EXTENSION DATABASE SUPPORT	3457	sub load_facedata($) {
		3458	my ($path) = @_;
1720		3459
1721	Crossfire maintains a very simple database for extension use. It can	3460	# HACK to clear player env face cache, we need some signal framework
1722	currently store anything that can be serialised using Storable, which	3461	# for this (global event?)
1723	excludes objects.	3462	%ext::player_env::MUSIC_FACE_CACHE = ();
1724		3463
1725	The parameter C<$family> should best start with the name of the extension	3464	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1726	using it, it should be unique.
1727		3465
1728	=over 4	3466	trace "loading facedata from $path\n";
1729		3467
1730	=item $hashref = cf::db_get $family	3468	my $facedata = decode_storable load_file $path;
1731		3469
1732	Return a hashref for use by the extension C<$family>, which can be	3470	$facedata->{version} == 2
1733	modified. After modifications, you have to call C<cf::db_dirty> or	3471	or cf::cleanup "$path: version mismatch, cannot proceed.";
1734	C<cf::db_sync>.
1735		3472
1736	=item $value = cf::db_get $family => $key	3473	# patch in the exptable
1737		3474	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1738	Returns a single value from the database	3475	$facedata->{resource}{"res/exp_table"} = {
1739		3476	type => FT_RSRC,
1740	=item cf::db_put $family => $hashref	3477	data => $exp_table,
1741		3478	hash => (Digest::MD5::md5 $exp_table),
1742	Stores the given family hashref into the database. Updates are delayed, if
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1744
1745	=item cf::db_put $family => $key => $value
1746
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757
1758	=cut
1759
1760	our $DB;
1761
1762	{
1763	my $path = cf::localdir . "/database.pst";
1764
1765	sub db_load() {
1766	warn "loading database $path\n";#d# remove later
1767	$DB = stat $path ? Storable::retrieve $path : { };
1768	}
1769
1770	my $pid;
1771
1772	sub db_save() {
1773	warn "saving database $path\n";#d# remove later
1774	waitpid $pid, 0 if $pid;
1775	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});	3479	};
		3480	cf::cede_to_tick;
1793		3481
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}	3482	{
		3483	my $faces = $facedata->{faceinfo};
1798		3484
1799	sub db_get($;$) {	3485	while (my ($face, $info) = each %$faces) {
1800	@_ >= 2	3486	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804		3487
1805	sub db_put($$;$) {	3488	cf::face::set_visibility $idx, $info->{visibility};
1806	if (@_ >= 3) {	3489	cf::face::set_magicmap $idx, $info->{magicmap};
1807	$DB->{$_[0]}{$_[1]} = $_[2];	3490	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1808	} else {	3491	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1809	$DB->{$_[0]} = $_[1];	3492	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1810	}
1811	db_dirty;
1812	}
1813		3493
1814	cf::global->attach (	3494	cf::cede_to_tick;
1815	prio => 10000,
1816	on_cleanup => sub {
1817	db_sync;
1818	},	3495	}
1819	);
1820	}
1821		3496
1822	#############################################################################	3497	while (my ($face, $info) = each %$faces) {
1823	# the server's main()	3498	next unless $info->{smooth};
1824		3499
1825	sub cfg_load {	3500	my $idx = cf::face::find $face
1826	open my $fh, "<:utf8", cf::confdir . "/config"	3501	or next;
1827	or return;
1828		3502
1829	local $/;	3503	if (my $smooth = cf::face::find $info->{smooth}) {
1830	*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;
1831	}	3675	}
1832		3676
1833	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
1834	# we must not ever block the main coroutine	3687	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	3688	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3689	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	3690	(async {
1838	Event::one_event;	3691	$Coro::current->{desc} = "IDLE BUG HANDLER";
1839	})->();	3692	EV::loop EV::LOOP_ONESHOT;
		3693	})->prio (Coro::PRIO_MAX);
1840	};	3694	};
1841		3695
1842	cfg_load;	3696	evthread_start IO::AIO::poll_fileno;
1843	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
1844	load_extensions;	3719	load_extensions;
1845	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;
1846	}	3739	}
1847		3740
1848	#############################################################################	3741	#############################################################################
1849	# initialisation	3742	# initialisation and cleanup
1850		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
1851	sub reload() {	3947	sub do_reload_perl() {
1852	# can/must only be called in main	3948	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	3949	unless (in_main) {
1854	warn "can only reload from main coroutine\n";	3950	error "can only reload from main coroutine";
1855	return;	3951	return;
1856	}	3952	}
1857		3953
1858	warn "reloading...";	3954	return if $RELOAD++;
1859		3955
1860	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 {
1861	cf::emergency_save;	3965	#cf::emergency_save;
1862		3966
1863	eval {	3967	trace "perl_reload: cancelling all extension coros";
1864	# if anything goes wrong in here, we should simply crash as we already saved
1865
1866	# cancel all watchers
1867	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}
1870
1871	# cancel all extension coros
1872	$_->cancel for values %EXT_CORO;	3968	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	3969	%EXT_CORO = ();
1874		3970
1875	# unload all extensions	3971	trace "perl_reload: removing commands";
1876	for (@exts) {	3972	%COMMAND = ();
1877	warn "unloading <$_>";
1878	unload_extension $_;
1879	}
1880		3973
1881	# unload all modules loaded from $LIBDIR	3974	trace "perl_reload: removing ext/exti commands";
1882	while (my ($k, $v) = each %INC) {	3975	%EXTCMD = ();
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3976	%EXTICMD = ();
1884		3977
1885	warn "removing <$k>";	3978	trace "perl_reload: unloading/nuking all extensions";
1886	delete $INC{$k};	3979	for my $pkg (@EXTS) {
		3980	trace "... unloading $pkg";
1887		3981
1888	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;
1890
1891	if (my $cb = $k->can ("unload_module")) {	3982	if (my $cb = $pkg->can ("unload")) {
		3983	eval {
1892	$cb->();	3984	$cb->($pkg);
		3985	1
		3986	} or error "$pkg unloaded, but with errors: $@";
		3987	}
		3988
		3989	trace "... clearing $pkg";
		3990	clear_package $pkg;
1893	}	3991	}
1894		3992
1895	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 $k;
1896	}	4008	}
1897		4009
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	4010	trace "perl_reload: getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	4011	clear_package "safe::$_"
1904	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);
1905		4013
1906	# remove register_script_function callbacks	4014	trace "perl_reload: unloading cf.pm \"a bit\"";
1907	# TODO
1908
1909	# unload cf.pm "a bit"
1910	delete $INC{"cf.pm"};	4015	delete $INC{"cf.pm"};
		4016	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1911		4017
1912	# don't, removes xs symbols, too,	4018	# don't, removes xs symbols, too,
1913	# and global variables created in xs	4019	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	4020	#clear_package __PACKAGE__;
1915		4021
1916	# reload cf.pm	4022	info "perl_reload: unload completed, starting to reload now";
1917	warn "reloading cf.pm";	4023
		4024	trace "perl_reload: reloading cf.pm";
1918	require cf;	4025	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4026	cf::_connect_to_perl_1;
1920		4027
1921	# load config and database again	4028	trace "perl_reload: loading config and database again";
1922	cf::cfg_load;	4029	cf::reload_config;
1923	cf::db_load;
1924		4030
1925	# load extensions	4031	trace "perl_reload: loading extensions";
1926	warn "load extensions";
1927	cf::load_extensions;	4032	cf::load_extensions;
1928		4033
1929	# reattach attachments to objects	4034	if ($REATTACH_ON_RELOAD) {
1930	warn "reattach";	4035	trace "perl_reload: reattaching attachments to objects/players";
1931	_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 $RELOAD_WATCHER;
		4072	};
1932	};	4073	};
1933
1934	if ($@) {
1935	warn $@;
1936	warn "error while reloading, exiting.";
1937	exit 1;
1938	}
1939
1940	warn "reloaded successfully";
1941	};
1942
1943	#############################################################################
1944
1945	unless ($LINK_MAP) {
1946	$LINK_MAP = cf::map::new;
1947
1948	$LINK_MAP->width (41);
1949	$LINK_MAP->height (41);
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,
1958	cb => sub {
1959	$_[0]->w->cancel;
1960
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});
1979
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}	4074	}
1985
1986	register "<global>", __PACKAGE__;
1987		4075
1988	register_command "reload" => sub {	4076	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	4077	my ($who, $arg) = @_;
1990		4078
1991	if ($who->flag (FLAG_WIZ)) {	4079	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");
1993	reload;
1994	$who->message ("end of reload.");	4080	$who->message ("reloading server.");
		4081	async {
		4082	$Coro::current->{desc} = "perl_reload";
		4083	reload_perl;
		4084	};
1995	}	4085	}
1996	};	4086	};
1997		4087
1998	unshift @INC, $LIBDIR;	4088	#############################################################################
1999		4089
2000	$TICK_WATCHER = Event->timer (	4090	my $bug_warning = 0;
2001	reentrant => 0,
2002	prio => 0,
2003	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,
2005	cb => sub {
2006	unless ($FREEZE) {
2007	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;
2009	}
2010		4091
2011	$NEXT_TICK += $TICK;	4092	sub wait_for_tick() {
		4093	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2012		4094
2013	# if we are delayed by four ticks or more, skip them all	4095	$WAIT_FOR_TICK->wait;
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4096	}
2015		4097
2016	$TICK_WATCHER->at ($NEXT_TICK);	4098	sub wait_for_tick_begin() {
2017	$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;
2018	},	4111	}
2019	);
2020		4112
2021	IO::AIO::max_poll_time $TICK * 0.2;	4113	cf::one_tick; # one server iteration
2022		4114
2023	Event->io (	4115	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2024	fd => IO::AIO::poll_fileno,
2025	poll => 'r',
2026	prio => 5,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030		4116
2031	Event->timer (	4117	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2032	data => WF_AUTOCANCEL,	4118	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2033	after => 0,	4119	Coro::async_pool {
2034	interval => 10,	4120	$Coro::current->{desc} = "runtime saver";
2035	cb => sub {
2036	(Coro::unblock_sub {
2037	write_runtime	4121	write_runtime_sync
2038	or warn "ERROR: unable to write runtime file: $!";	4122	or error "ERROR: unable to write runtime file: $!";
2039	})->();	4123	};
2040	},	4124	}
2041	);	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 }
2042		4245
2043	1	4246	1
2044		4247

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