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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.569 by root, Wed May 4 07:36:40 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;
45	our $NOW;	124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
46		132
47	our %CFG;	133	our %CFG;
48		134
49	our $UPTIME; $UPTIME ||= time;	135	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	136	our $RUNTIME;
		137	our $NOW;
51		138
52	our %MAP; # all maps	139	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	140	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	141	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	142
56	our %EXT_CORO;	143	# used to convert map paths into valid unix filenames by replacing / by ∕
		144	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		145
		146	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		147	our $LOADAVG; # same thing, but with alpha-smoothing
		148	our $JITTER; # average jitter
		149	our $TICK_START; # for load detecting purposes
		150
		151	our @POST_INIT;
		152
		153	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		154	our $REALLY_UNLOOP; # never set to true, please :)
57		155
58	binmode STDOUT;	156	binmode STDOUT;
59	binmode STDERR;	157	binmode STDERR;
60		158
61	# read virtual server time, if available	159	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	160	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	161	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	162	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	163	$RUNTIME = <$fh> + 0.;
66	}	164	}
67		165
68	mkdir cf::localdir;	166	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		167
74	# a special map that is always available	168	mkdir $_
75	our $LINK_MAP;	169	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		170
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	171	our $EMERGENCY_POSITION;
		172
		173	sub cf::map::normalise;
		174
		175	sub in_main() {
		176	$Coro::current == $Coro::main
		177	}
		178
		179	#############################################################################
		180
		181	%REFLECT = ();
		182	for (@REFLECT) {
		183	my $reflect = JSON::XS::decode_json $_;
		184	$REFLECT{$reflect->{class}} = $reflect;
		185	}
		186
		187	# this is decidedly evil
		188	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		189
79	#############################################################################	190	#############################################################################
80		191
81	=head2 GLOBAL VARIABLES	192	=head2 GLOBAL VARIABLES
82		193
…		…
89	=item $cf::RUNTIME	200	=item $cf::RUNTIME
90		201
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	202	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	203	every server tick.
93		204
94	=item $cf::LIBDIR	205	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		206	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		207	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		208
96	The perl library directory, where extensions and cf-specific modules can	209	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	210	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		211	unique-items directory, player file directory, random maps directory and
		212	database environment.
98		213
99	=item $cf::NOW	214	=item $cf::NOW
100		215
101	The time of the last (current) server tick.	216	The time of the last (current) server tick.
102		217
103	=item $cf::TICK	218	=item $cf::TICK
104		219
105	The interval between server ticks, in seconds.	220	The interval between server ticks, in seconds.
106		221
		222	=item $cf::LOADAVG
		223
		224	The current CPU load on the server (alpha-smoothed), as a value between 0
		225	(none) and 1 (overloaded), indicating how much time is spent on processing
		226	objects per tick. Healthy values are < 0.5.
		227
		228	=item $cf::LOAD
		229
		230	The raw value load value from the last tick.
		231
107	=item %cf::CFG	232	=item %cf::CFG
108		233
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	234	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	235	from wherever your confdir points to.
111		236
		237	=item cf::wait_for_tick, cf::wait_for_tick_begin
		238
		239	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		240	returns directly I<after> the tick processing (and consequently, can only wake one thread
		241	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		242
		243	=cut
		244
		245	sub wait_for_tick();
		246	sub wait_for_tick_begin();
		247
		248	=item @cf::INVOKE_RESULTS
		249
		250	This array contains the results of the last C<invoke ()> call. When
		251	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		252	that call.
		253
		254	=item %cf::REFLECT
		255
		256	Contains, for each (C++) class name, a hash reference with information
		257	about object members (methods, scalars, arrays and flags) and other
		258	metadata, which is useful for introspection.
		259
112	=back	260	=back
113		261
114	=cut	262	=cut
115		263
116	BEGIN {	264	sub error(@) { LOG llevError, join "", @_ }
117	*CORE::GLOBAL::warn = sub {	265	sub warn (@) { LOG llevWarn , join "", @_ }
		266	sub info (@) { LOG llevInfo , join "", @_ }
		267	sub debug(@) { LOG llevDebug, join "", @_ }
		268	sub trace(@) { LOG llevTrace, join "", @_ }
		269
		270	$Coro::State::WARNHOOK = sub {
118	my $msg = join "", @_;	271	my $msg = join "", @_;
119	utf8::encode $msg;
120		272
121	$msg .= "\n"	273	$msg .= "\n"
122	unless $msg =~ /\n$/;	274	unless $msg =~ /\n$/;
123		275
124	LOG llevError, "cfperl: $msg";	276	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	277
126	}	278	LOG llevWarn, $msg;
		279	};
		280
		281	$Coro::State::DIEHOOK = sub {
		282	return unless $^S eq 0; # "eq", not "=="
		283
		284	error Carp::longmess $_[0];
		285
		286	if (in_main) {#d#
		287	error "DIEHOOK called in main context, Coro bug?\n";#d#
		288	return;#d#
		289	}#d#
		290
		291	# kill coroutine otherwise
		292	Coro::terminate
		293	};
127		294
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	295	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	296	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	297	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	298	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	299	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		300	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	301	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		302
135	# we bless all objects into (empty) derived classes to force a method lookup	303	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	304	# within the Safe compartment.
137	for my $pkg (qw(	305	for my $pkg (qw(
138	cf::global cf::attachable	306	cf::global cf::attachable
139	cf::object cf::object::player	307	cf::object cf::object::player
140	cf::client cf::player	308	cf::client cf::player
141	cf::arch cf::living	309	cf::arch cf::living
		310	cf::map cf::mapspace
142	cf::map cf::party cf::region	311	cf::party cf::region
143	)) {	312	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	313	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	314	}
147		315
148	$Event::DIED = sub {	316	$EV::DIED = sub {
149	warn "error in event callback: @_";	317	Carp::cluck "error in event callback: @_";
150	};	318	};
151		319
152	my %ext_pkg;	320	#############################################################################
153	my @exts;	321
154	my @hook;	322	sub fork_call(&@);
		323	sub get_slot($;$$);
		324
		325	#############################################################################
155		326
156	=head2 UTILITY FUNCTIONS	327	=head2 UTILITY FUNCTIONS
157		328
158	=over 4	329	=over 4
159		330
160	=cut	331	=item dumpval $ref
161		332
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	333	=cut
163		334
		335	sub dumpval {
		336	eval {
		337	local $SIG{__DIE__};
		338	my $d;
		339	if (1) {
		340	$d = new Data::Dumper([$_[0]], ["*var"]);
		341	$d->Terse(1);
		342	$d->Indent(2);
		343	$d->Quotekeys(0);
		344	$d->Useqq(1);
		345	#$d->Bless(...);
		346	$d->Seen($_[1]) if @_ > 1;
		347	$d = $d->Dump();
		348	}
		349	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		350	$d
		351	} || "[unable to dump $_[0]: '$@']";
		352	}
		353
		354	=item $scalar = load_file $path
		355
		356	Loads the given file from path and returns its contents. Croaks on error
		357	and can block.
		358
		359	=cut
		360
		361	sub load_file($) {
		362	0 <= aio_load $_[0], my $data
		363	or Carp::croak "$_[0]: $!";
		364
		365	$data
		366	}
		367
164	=item $ref = cf::from_json $json	368	=item $ref = cf::decode_json $json
165		369
166	Converts a JSON string into the corresponding perl data structure.	370	Converts a JSON string into the corresponding perl data structure.
167		371
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	372	=item $json = cf::encode_json $ref
176		373
177	Converts a perl data structure into its JSON representation.	374	Converts a perl data structure into its JSON representation.
178		375
179	=cut	376	=cut
180		377
181	sub to_json($) {	378	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	379
183	JSON::Syck::Dump $_[0]	380	sub encode_json($) { $json_coder->encode ($_[0]) }
		381	sub decode_json($) { $json_coder->decode ($_[0]) }
		382
		383	=item $ref = cf::decode_storable $scalar
		384
		385	Same as Coro::Storable::thaw, so blocks.
		386
		387	=cut
		388
		389	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		390
		391	=item $ref = cf::decode_yaml $scalar
		392
		393	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		394
		395	=cut
		396
		397	sub decode_yaml($) {
		398	fork_call { YAML::XS::Load $_[0] } @_
184	}	399	}
		400
		401	=item $scalar = cf::unlzf $scalar
		402
		403	Same as Compress::LZF::compress, but takes server ticks into account, so
		404	blocks.
		405
		406	=cut
		407
		408	sub unlzf($) {
		409	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		410	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		411	Compress::LZF::decompress $_[0]
		412	}
		413
		414	=item cf::post_init { BLOCK }
		415
		416	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		417	but I<before> the server starts ticking again.
		418
		419	The codeblock will have a single boolean argument to indicate whether this
		420	is a reload or not.
		421
		422	=cut
		423
		424	sub post_init(&) {
		425	push @POST_INIT, shift;
		426	}
		427
		428	sub _post_init {
		429	trace "running post_init jobs";
		430
		431	# run them in parallel...
		432
		433	my @join;
		434
		435	while () {
		436	push @join, map &Coro::async ($_, 0), @POST_INIT;
		437	@POST_INIT = ();
		438
		439	@join or last;
		440
		441	(pop @join)->join;
		442	}
		443	}
		444
		445	=item cf::lock_wait $string
		446
		447	Wait until the given lock is available. See cf::lock_acquire.
		448
		449	=item my $lock = cf::lock_acquire $string
		450
		451	Wait until the given lock is available and then acquires it and returns
		452	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		453	for example when the coroutine gets canceled), the lock is automatically
		454	returned.
		455
		456	Locks are *not* recursive, locking from the same coro twice results in a
		457	deadlocked coro.
		458
		459	Lock names should begin with a unique identifier (for example, cf::map::find
		460	uses map_find and cf::map::load uses map_load).
		461
		462	=item $locked = cf::lock_active $string
		463
		464	Return true if the lock is currently active, i.e. somebody has locked it.
		465
		466	=cut
		467
		468	our $LOCKS = new Coro::SemaphoreSet;
		469
		470	sub lock_wait($) {
		471	$LOCKS->wait ($_[0]);
		472	}
		473
		474	sub lock_acquire($) {
		475	$LOCKS->guard ($_[0])
		476	}
		477
		478	sub lock_active($) {
		479	$LOCKS->count ($_[0]) < 1
		480	}
		481
		482	sub freeze_mainloop {
		483	tick_inhibit_inc;
		484
		485	&Guard::guard (\&tick_inhibit_dec);
		486	}
		487
		488	=item cf::periodic $interval, $cb
		489
		490	Like EV::periodic, but randomly selects a starting point so that the actions
		491	get spread over time.
		492
		493	=cut
		494
		495	sub periodic($$) {
		496	my ($interval, $cb) = @_;
		497
		498	my $start = rand List::Util::min 180, $interval;
		499
		500	EV::periodic $start, $interval, 0, $cb
		501	}
		502
		503	=item cf::get_slot $time[, $priority[, $name]]
		504
		505	Allocate $time seconds of blocking CPU time at priority C<$priority>
		506	(default: 0): This call blocks and returns only when you have at least
		507	C<$time> seconds of cpu time till the next tick. The slot is only valid
		508	till the next cede.
		509
		510	Background jobs should use a priority les than zero, interactive jobs
		511	should use 100 or more.
		512
		513	The optional C<$name> can be used to identify the job to run. It might be
		514	used for statistical purposes and should identify the same time-class.
		515
		516	Useful for short background jobs.
		517
		518	=cut
		519
		520	our @SLOT_QUEUE;
		521	our $SLOT_QUEUE;
		522	our $SLOT_DECAY = 0.9;
		523
		524	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		525	$SLOT_QUEUE = Coro::async {
		526	$Coro::current->desc ("timeslot manager");
		527
		528	my $signal = new Coro::Signal;
		529	my $busy;
		530
		531	while () {
		532	next_job:
		533
		534	my $avail = cf::till_tick;
		535
		536	for (0 .. $#SLOT_QUEUE) {
		537	if ($SLOT_QUEUE[$_][0] <= $avail) {
		538	$busy = 0;
		539	my $job = splice @SLOT_QUEUE, $_, 1, ();
		540	$job->[2]->send;
		541	Coro::cede;
		542	goto next_job;
		543	} else {
		544	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		545	}
		546	}
		547
		548	if (@SLOT_QUEUE) {
		549	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		550	push @cf::WAIT_FOR_TICK, $signal;
		551	$signal->wait;
		552	} else {
		553	$busy = 0;
		554	Coro::schedule;
		555	}
		556	}
		557	};
		558
		559	sub get_slot($;$$) {
		560	return if tick_inhibit || $Coro::current == $Coro::main;
		561
		562	my ($time, $pri, $name) = @_;
		563
		564	$time = clamp $time, 0.01, $TICK * .6;
		565
		566	my $sig = new Coro::Signal;
		567
		568	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		569	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		570	$SLOT_QUEUE->ready;
		571	$sig->wait;
		572	}
		573
		574	=item cf::async { BLOCK }
		575
		576	Currently the same as Coro::async_pool, meaning you cannot use
		577	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		578	thing you are allowed to do is call C<prio> on it.
		579
		580	=cut
		581
		582	BEGIN { *async = \&Coro::async_pool }
185		583
186	=item cf::sync_job { BLOCK }	584	=item cf::sync_job { BLOCK }
187		585
188	The design of crossfire+ requires that the main coro ($Coro::main) is	586	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	587	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	588	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		589	acceptable.
191		590
192	If it must be done, put the blocking parts into C<sync_job>. This will run	591	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	592	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	593	server will be frozen during this time, so the block should either finish
195	fast or be very important.	594	fast or be very important.
…		…
197	=cut	596	=cut
198		597
199	sub sync_job(&) {	598	sub sync_job(&) {
200	my ($job) = @_;	599	my ($job) = @_;
201		600
		601	if (in_main) {
		602	my $time = AE::time;
		603
		604	# this is the main coro, too bad, we have to block
		605	# till the operation succeeds, freezing the server :/
		606
		607	#LOG llevError, Carp::longmess "sync job";#d#
		608
		609	my $freeze_guard = freeze_mainloop;
		610
202	my $busy = 1;	611	my $busy = 1;
203	my @res;	612	my @res;
204		613
205	my $coro = Coro::async {	614	(async {
		615	$Coro::current->desc ("sync job coro");
206	@res = eval { $job->() };	616	@res = eval { $job->() };
207	warn $@ if $@;	617	error $@ if $@;
208	undef $busy;	618	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {
212	# TODO: use suspend/resume instead
213	local $FREEZE = 1;
214	$coro->prio (Coro::PRIO_MAX);	619	})->prio (Coro::PRIO_MAX);
		620
215	while ($busy) {	621	while ($busy) {
		622	if (Coro::nready) {
216	Coro::cede_notself;	623	Coro::cede_notself;
217	Event::one_event unless Coro::nready;	624	} else {
		625	EV::loop EV::LOOP_ONESHOT;
218	}	626	}
		627	}
		628
		629	my $time = AE::time - $time;
		630
		631	$TICK_START += $time; # do not account sync jobs to server load
		632
		633	wantarray ? @res : $res[0]
219	} else {	634	} else {
220	$coro->join;	635	# we are in another coroutine, how wonderful, everything just works
		636
		637	$job->()
221	}	638	}
222
223	wantarray ? @res : $res[0]
224	}	639	}
225		640
226	=item $coro = cf::coro { BLOCK }	641	=item $coro = cf::async_ext { BLOCK }
227		642
228	Creates and returns a new coro. This coro is automcatially being canceled	643	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	644	extension calling this is being unloaded.
230		645
231	=cut	646	=cut
232		647
233	sub coro(&) {	648	sub async_ext(&) {
234	my $cb = shift;	649	my $cb = shift;
235		650
236	my $coro; $coro = async {	651	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		652
243	$coro->on_destroy (sub {	653	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	654	delete $EXT_CORO{$coro+0};
245	});	655	});
246	$EXT_CORO{$coro+0} = $coro;	656	$EXT_CORO{$coro+0} = $coro;
247		657
248	$coro	658	$coro
249	}	659	}
250		660
251	sub write_runtime {	661	=item fork_call { }, @args
252	my $runtime = cf::localdir . "/runtime";
253		662
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	663	Executes the given code block with the given arguments in a seperate
255	or return;	664	process, returning the results. Everything must be serialisable with
		665	Coro::Storable. May, of course, block. Note that the executed sub may
		666	never block itself or use any form of event handling.
256		667
257	my $value = $cf::RUNTIME;	668	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		669
261	aio_fsync $fh	670	sub post_fork {
262	and return;	671	reset_signals;
		672	}
263		673
264	close $fh	674	sub fork_call(&@) {
265	or return;	675	my ($cb, @args) = @_;
266		676
267	aio_rename "$runtime~", $runtime	677	# we seemingly have to make a local copy of the whole thing,
268	and return;	678	# otherwise perl prematurely frees the stuff :/
		679	# TODO: investigate and fix (likely this will be rather laborious)
269		680
		681	my @res = Coro::Util::fork_eval {
		682	cf::post_fork;
		683	&$cb
		684	} @args;
		685
		686	wantarray ? @res : $res[-1]
		687	}
		688
		689	sub objinfo {
270	1	690	(
		691	"counter value" => cf::object::object_count,
		692	"objects created" => cf::object::create_count,
		693	"objects destroyed" => cf::object::destroy_count,
		694	"freelist size" => cf::object::free_count,
		695	"allocated objects" => cf::object::objects_size,
		696	"active objects" => cf::object::actives_size,
		697	)
		698	}
		699
		700	=item $coin = coin_from_name $name
		701
		702	=cut
		703
		704	our %coin_alias = (
		705	"silver" => "silvercoin",
		706	"silvercoin" => "silvercoin",
		707	"silvercoins" => "silvercoin",
		708	"gold" => "goldcoin",
		709	"goldcoin" => "goldcoin",
		710	"goldcoins" => "goldcoin",
		711	"platinum" => "platinacoin",
		712	"platinumcoin" => "platinacoin",
		713	"platinumcoins" => "platinacoin",
		714	"platina" => "platinacoin",
		715	"platinacoin" => "platinacoin",
		716	"platinacoins" => "platinacoin",
		717	"royalty" => "royalty",
		718	"royalties" => "royalty",
		719	);
		720
		721	sub coin_from_name($) {
		722	$coin_alias{$_[0]}
		723	? cf::arch::find $coin_alias{$_[0]}
		724	: undef
		725	}
		726
		727	=item $value = cf::db_get $family => $key
		728
		729	Returns a single value from the environment database.
		730
		731	=item cf::db_put $family => $key => $value
		732
		733	Stores the given C<$value> in the family. It can currently store binary
		734	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		735
		736	=item $db = cf::db_table "name"
		737
		738	Create and/or open a new database table. The string must not be "db" and must be unique
		739	within each server.
		740
		741	=cut
		742
		743	sub db_table($) {
		744	cf::error "db_get called from main context"
		745	if $Coro::current == $Coro::main;
		746
		747	my ($name) = @_;
		748	my $db = BDB::db_create $DB_ENV;
		749
		750	eval {
		751	$db->set_flags (BDB::CHKSUM);
		752
		753	utf8::encode $name;
		754	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		755	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		756	cf::cleanup "db_open(db): $!" if $!;
		757	};
		758	cf::cleanup "db_open(db): $@" if $@;
		759
		760	$db
		761	}
		762
		763	our $DB;
		764
		765	sub db_init {
		766	$DB ||= db_table "db";
		767	}
		768
		769	sub db_get($$) {
		770	my $key = "$_[0]/$_[1]";
		771
		772	cf::error "db_get called from main context"
		773	if $Coro::current == $Coro::main;
		774
		775	BDB::db_get $DB, undef, $key, my $data;
		776
		777	$! ? ()
		778	: $data
		779	}
		780
		781	sub db_put($$$) {
		782	BDB::dbreq_pri 4;
		783	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		784	}
		785
		786	=item cf::cache $id => [$paths...], $processversion => $process
		787
		788	Generic caching function that returns the value of the resource $id,
		789	caching and regenerating as required.
		790
		791	This function can block.
		792
		793	=cut
		794
		795	sub cache {
		796	my ($id, $src, $processversion, $process) = @_;
		797
		798	my $meta =
		799	join "\x00",
		800	$processversion,
		801	map {
		802	aio_stat $_
		803	and Carp::croak "$_: $!";
		804
		805	($_, (stat _)[7,9])
		806	} @$src;
		807
		808	my $dbmeta = db_get cache => "$id/meta";
		809	if ($dbmeta ne $meta) {
		810	# changed, we may need to process
		811
		812	my @data;
		813	my $md5;
		814
		815	for (0 .. $#$src) {
		816	$data[$_] = load_file $src->[$_];
		817	}
		818
		819	# if processing is expensive, check
		820	# checksum first
		821	if (1) {
		822	$md5 =
		823	join "\x00",
		824	$processversion,
		825	map {
		826	cf::cede_to_tick;
		827	($src->[$_], Digest::MD5::md5_hex $data[$_])
		828	} 0.. $#$src;
		829
		830
		831	my $dbmd5 = db_get cache => "$id/md5";
		832	if ($dbmd5 eq $md5) {
		833	db_put cache => "$id/meta", $meta;
		834
		835	return db_get cache => "$id/data";
		836	}
		837	}
		838
		839	my $t1 = Time::HiRes::time;
		840	my $data = $process->(\@data);
		841	my $t2 = Time::HiRes::time;
		842
		843	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		844
		845	db_put cache => "$id/data", $data;
		846	db_put cache => "$id/md5" , $md5;
		847	db_put cache => "$id/meta", $meta;
		848
		849	return $data;
		850	}
		851
		852	db_get cache => "$id/data"
		853	}
		854
		855	=item cf::datalog type => key => value, ...
		856
		857	Log a datalog packet of the given type with the given key-value pairs.
		858
		859	=cut
		860
		861	sub datalog($@) {
		862	my ($type, %kv) = @_;
		863	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
271	}	864	}
272		865
273	=back	866	=back
274		867
275	=cut	868	=cut
276		869
277	#############################################################################	870	#############################################################################
278		871
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386
387	#############################################################################
388
389	=head2 ATTACHABLE OBJECTS	872	=head2 ATTACHABLE OBJECTS
390		873
391	Many objects in crossfire are so-called attachable objects. That means you can	874	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	875	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	876	to it. All such attachable objects support the following methods.
394		877
395	In the following description, CLASS can be any of C<global>, C<object>	878	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	879	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	880	Deliantra).
398		881
399	=over 4	882	=over 4
400		883
401	=item $attachable->attach ($attachment, key => $value...)	884	=item $attachable->attach ($attachment, key => $value...)
402		885
…		…
446	=item cf::CLASS::attachment $name, ...	929	=item cf::CLASS::attachment $name, ...
447		930
448	Register an attachment by C<$name> through which attachable objects of the	931	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	932	given CLASS can refer to this attachment.
450		933
451	Some classes such as crossfire maps and objects can specify attachments	934	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	935	that are attached at load/instantiate time, thus the need for a name.
453		936
454	These calls expect any number of the following handler/hook descriptions:	937	These calls expect any number of the following handler/hook descriptions:
455		938
456	=over 4	939	=over 4
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	999	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	1000	our @CB_MAP = ();
518		1001
519	my %attachment;	1002	my %attachment;
520		1003
		1004	sub cf::attachable::thawer_merge {
		1005	# simply override everything except _meta
		1006	local $_[0]{_meta};
		1007	%{$_[0]} = %{$_[1]};
		1008	}
		1009
521	sub _attach_cb($$$$) {	1010	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	1011	my ($registry, $event, $prio, $cb) = @_;
523		1012
524	use sort 'stable';	1013	use sort 'stable';
525		1014
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	1048	$registry = $CB_TYPE[$object_type] ||= [];
560		1049
561	} elsif ($type eq "subtype") {	1050	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	1051	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	1052	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1053	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		1054
566	} elsif ($type eq "package") {	1055	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	1056	my $pkg = shift @arg;
568		1057
569	while (my ($name, $id) = each %cb_id) {	1058	while (my ($name, $id) = each %cb_id) {
…		…
574		1063
575	} elsif (exists $cb_id{$type}) {	1064	} elsif (exists $cb_id{$type}) {
576	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1065	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
577		1066
578	} elsif (ref $type) {	1067	} elsif (ref $type) {
579	warn "attaching objects not supported, ignoring.\n";	1068	error "attaching objects not supported, ignoring.\n";
580		1069
581	} else {	1070	} else {
582	shift @arg;	1071	shift @arg;
583	warn "attach argument '$type' not supported, ignoring.\n";	1072	error "attach argument '$type' not supported, ignoring.\n";
584	}	1073	}
585	}	1074	}
586	}	1075	}
587		1076
588	sub _object_attach {	1077	sub _object_attach {
…		…
598	_attach $registry, $klass, @attach;	1087	_attach $registry, $klass, @attach;
599	}	1088	}
600		1089
601	$obj->{$name} = \%arg;	1090	$obj->{$name} = \%arg;
602	} else {	1091	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	1092	info "object uses attachment '$name' which is not available, postponing.\n";
604	}	1093	}
605		1094
606	$obj->{_attachment}{$name} = undef;	1095	$obj->{_attachment}{$name} = undef;
607	}	1096	}
608		1097
…		…
610	if (ref $_[0]) {	1099	if (ref $_[0]) {
611	_object_attach @_;	1100	_object_attach @_;
612	} else {	1101	} else {
613	_attach shift->_attach_registry, @_;	1102	_attach shift->_attach_registry, @_;
614	}	1103	}
		1104	_recalc_want;
615	};	1105	};
616		1106
617	# all those should be optimised	1107	# all those should be optimised
618	sub cf::attachable::detach {	1108	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	1109	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	1112	delete $obj->{_attachment}{$name};
623	reattach ($obj);	1113	reattach ($obj);
624	} else {	1114	} else {
625	Carp::croak "cannot, currently, detach class attachments";	1115	Carp::croak "cannot, currently, detach class attachments";
626	}	1116	}
		1117	_recalc_want;
627	};	1118	};
628		1119
629	sub cf::attachable::attached {	1120	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	1121	my ($obj, $name) = @_;
631		1122
…		…
646	";	1137	";
647	die if $@;	1138	die if $@;
648	}	1139	}
649		1140
650	our $override;	1141	our $override;
651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1142	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
652		1143
653	sub override {	1144	sub override {
654	$override = 1;	1145	$override = 1;
655	@invoke_results = ();	1146	@INVOKE_RESULTS = (@_);
656	}	1147	}
657		1148
658	sub do_invoke {	1149	sub do_invoke {
659	my $event = shift;	1150	my $event = shift;
660	my $callbacks = shift;	1151	my $callbacks = shift;
661		1152
662	@invoke_results = ();	1153	@INVOKE_RESULTS = ();
663		1154
664	local $override;	1155	local $override;
665		1156
666	for (@$callbacks) {	1157	for (@$callbacks) {
667	eval { &{$_->[1]} };	1158	eval { &{$_->[1]} };
668		1159
669	if ($@) {	1160	if ($@) {
670	warn "$@";
671	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1161	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
672	override;	1162	override;
673	}	1163	}
674		1164
675	return 1 if $override;	1165	return 1 if $override;
676	}	1166	}
677		1167
678	0	1168	0
679	}	1169	}
680		1170
681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1171	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
682		1172
683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1173	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
684		1174
685	Generate an object-specific event with the given arguments.	1175	Generate an object-specific event with the given arguments.
686		1176
687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1177	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
688	removed in future versions), and there is no public API to access override	1178	removed in future versions), and there is no public API to access override
689	results (if you must, access C<@cf::invoke_results> directly).	1179	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		1180
691	=back	1181	=back
692		1182
693	=cut	1183	=cut
694		1184
695	#############################################################################	1185	#############################################################################
696	# object support	1186	# object support
		1187
		1188	sub _object_equal($$);
		1189	sub _object_equal($$) {
		1190	my ($a, $b) = @_;
		1191
		1192	return 0 unless (ref $a) eq (ref $b);
		1193
		1194	if ("HASH" eq ref $a) {
		1195	my @ka = keys %$a;
		1196	my @kb = keys %$b;
		1197
		1198	return 0 if @ka != @kb;
		1199
		1200	for (0 .. $#ka) {
		1201	return 0 unless $ka[$_] eq $kb[$_];
		1202	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1203	}
		1204
		1205	} elsif ("ARRAY" eq ref $a) {
		1206
		1207	return 0 if @$a != @$b;
		1208
		1209	for (0 .. $#$a) {
		1210	return 0 unless _object_equal $a->[$_], $b->[$_];
		1211	}
		1212
		1213	} elsif ($a ne $b) {
		1214	return 0;
		1215	}
		1216
		1217	1
		1218	}
		1219
		1220	our $SLOW_MERGES;#d#
		1221	sub _can_merge {
		1222	my ($ob1, $ob2) = @_;
		1223
		1224	++$SLOW_MERGES;#d#
		1225
		1226	# we do the slow way here
		1227	return _object_equal $ob1, $ob2
		1228	}
697		1229
698	sub reattach {	1230	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1231	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	1232	my ($obj) = @_;
		1233
		1234	# no longer needed after getting rid of delete_package?
		1235	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		1236
702	my $registry = $obj->registry;	1237	my $registry = $obj->registry;
703		1238
704	@$registry = ();	1239	@$registry = ();
705		1240
…		…
710	for (@$attach) {	1245	for (@$attach) {
711	my ($klass, @attach) = @$_;	1246	my ($klass, @attach) = @$_;
712	_attach $registry, $klass, @attach;	1247	_attach $registry, $klass, @attach;
713	}	1248	}
714	} else {	1249	} else {
715	warn "object uses attachment '$name' that is not available, postponing.\n";	1250	info "object uses attachment '$name' that is not available, postponing.\n";
716	}	1251	}
717	}	1252	}
718	}	1253	}
719		1254
720	cf::attachable->attach (	1255	cf::attachable->attach (
721	prio => -1000000,	1256	prio => -1000000,
722	on_instantiate => sub {	1257	on_instantiate => sub {
723	my ($obj, $data) = @_;	1258	my ($obj, $data) = @_;
724		1259
725	$data = from_json $data;	1260	$data = decode_json $data;
726		1261
727	for (@$data) {	1262	for (@$data) {
728	my ($name, $args) = @$_;	1263	my ($name, $args) = @$_;
729		1264
730	$obj->attach ($name, %{$args || {} });	1265	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1281	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1282	my ($filename, $rdata, $objs) = @_;
748		1283
749	sync_job {	1284	sync_job {
750	if (length $$rdata) {	1285	if (length $$rdata) {
		1286	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1287	trace sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1288	$decname, length $$rdata, scalar @$objs
		1289	if $VERBOSE_IO;
753		1290
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1291	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1292	aio_chmod $fh, SAVE_MODE;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1293	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1294	if ($cf::USE_FSYNC) {
		1295	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
757	aio_fsync $fh;	1296	aio_fsync $fh;
		1297	}
758	close $fh;	1298	aio_close $fh;
759		1299
760	if (@$objs) {	1300	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1301	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1302	aio_chmod $fh, SAVE_MODE;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1303	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1304	aio_write $fh, 0, (length $data), $data, 0;
		1305	if ($cf::USE_FSYNC) {
		1306	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
765	aio_fsync $fh;	1307	aio_fsync $fh;
		1308	}
766	close $fh;	1309	aio_close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1310	aio_rename "$filename.pst~", "$filename.pst";
768	}	1311	}
769	} else {	1312	} else {
770	aio_unlink "$filename.pst";	1313	aio_unlink "$filename.pst";
771	}	1314	}
772		1315
773	aio_rename "$filename~", $filename;	1316	aio_rename "$filename~", $filename;
		1317
		1318	$filename =~ s%/[^/]+$%%;
		1319	aio_pathsync $filename if $cf::USE_FSYNC;
774	} else {	1320	} else {
775	warn "FATAL: $filename~: $!\n";	1321	error "unable to save objects: $filename~: $!\n";
776	}	1322	}
777	} else {	1323	} else {
778	aio_unlink $filename;	1324	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1325	aio_unlink "$filename.pst";
780	}	1326	}
781	}	1327	};
782	}	1328	}
783		1329
784	sub object_freezer_as_string {	1330	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1331	my ($rdata, $objs) = @_;
786		1332
…		…
798	or return;	1344	or return;
799		1345
800	unless (aio_stat "$filename.pst") {	1346	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1347	(aio_load "$filename.pst", $av) >= 0
802	or return;	1348	or return;
		1349
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1350	my $st = eval { Coro::Storable::thaw $av };
		1351	$av = $st->{objs};
804	}	1352	}
805		1353
		1354	utf8::decode (my $decname = $filename);
		1355	trace sprintf "loading %s (%d,%d)\n",
		1356	$decname, length $data, scalar @{$av || []}
		1357	if $VERBOSE_IO;
		1358
806	return ($data, $av);	1359	($data, $av)
807	}	1360	}
		1361
		1362	=head2 COMMAND CALLBACKS
		1363
		1364	=over 4
		1365
		1366	=cut
808		1367
809	#############################################################################	1368	#############################################################################
810	# command handling &c	1369	# command handling &c
811		1370
812	=item cf::register_command $name => \&callback($ob,$args);	1371	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1384	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1385	}
827		1386
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1387	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1388
830	Register a callbackf ro execution when the client sends an extcmd packet.	1389	Register a callback for execution when the client sends an (synchronous)
		1390	extcmd packet. Ext commands will be processed in the order they are
		1391	received by the server, like other user commands. The first argument is
		1392	the logged-in player. Ext commands can only be processed after a player
		1393	has logged in successfully.
831		1394
832	If the callback returns something, it is sent back as if reply was being	1395	If the callback returns something, it is sent back as if reply was being
833	called.	1396	called.
834		1397
		1398	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1399
		1400	Register a callback for execution when the client sends an (asynchronous)
		1401	exticmd packet. Exti commands are processed by the server as soon as they
		1402	are received, i.e. out of order w.r.t. other commands. The first argument
		1403	is a client socket. Exti commands can be received anytime, even before
		1404	log-in.
		1405
		1406	If the callback returns something, it is sent back as if reply was being
		1407	called.
		1408
835	=cut	1409	=cut
836		1410
837	sub register_extcmd {	1411	sub register_extcmd {
838	my ($name, $cb) = @_;	1412	my ($name, $cb) = @_;
839		1413
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1414	$EXTCMD{$name} = $cb;
844	}	1415	}
		1416
		1417	sub register_exticmd {
		1418	my ($name, $cb) = @_;
		1419
		1420	$EXTICMD{$name} = $cb;
		1421	}
		1422
		1423	use File::Glob ();
845		1424
846	cf::player->attach (	1425	cf::player->attach (
847	on_command => sub {	1426	on_unknown_command => sub {
848	my ($pl, $name, $params) = @_;	1427	my ($pl, $name, $params) = @_;
849		1428
850	my $cb = $COMMAND{$name}	1429	my $cb = $COMMAND{$name}
851	or return;	1430	or return;
852		1431
…		…
857	cf::override;	1436	cf::override;
858	},	1437	},
859	on_extcmd => sub {	1438	on_extcmd => sub {
860	my ($pl, $buf) = @_;	1439	my ($pl, $buf) = @_;
861		1440
862	my $msg = eval { from_json $buf };	1441	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
863		1442
864	if (ref $msg) {	1443	if (ref $msg) {
		1444	my ($type, $reply, @payload) =
		1445	"ARRAY" eq ref $msg
		1446	? @$msg
		1447	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1448
		1449	my @reply;
		1450
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1451	if (my $cb = $EXTCMD{$type}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1452	@reply = $cb->($pl, @payload);
867	$pl->ext_reply ($msg->{msgid}, %reply);
868	}
869	}	1453	}
		1454
		1455	$pl->ext_reply ($reply, @reply)
		1456	if $reply;
		1457
870	} else {	1458	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1459	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
872	}	1460	}
873		1461
874	cf::override;	1462	cf::override;
875	},	1463	},
876	);	1464	);
877		1465
878	sub register {	1466	# "readahead" all extensions
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	1467	sub cache_extensions {
885	my ($path) = @_;	1468	my $grp = IO::AIO::aio_group;
886		1469
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
888	my $base = $1;	1471	for (grep /\.ext$/, @{$_[0]}) {
889	my $pkg = $1;	1472	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892
893	warn "loading '$path' into '$pkg'\n";
894
895	open my $fh, "<:utf8", $path
896	or die "$path: $!";
897
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }
927
928	# remove commands
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}	1473	}
937	}	1474	};
938		1475
939	# remove extcmds	1476	$grp
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	1477	}
953		1478
954	sub load_extensions {	1479	sub load_extensions {
		1480	info "loading extensions...";
		1481
		1482	cf::sync_job {
		1483	my %todo;
		1484
955	for my $ext (<$LIBDIR/*.ext>) {	1485	for my $path (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	1486	next unless -r $path;
957	eval {	1487
958	load_extension $ext;	1488	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1489	my $base = $1;
		1490	my $pkg = $1;
		1491	$pkg =~ s/[^[:word:]]/_/g;
		1492	$pkg = "ext::$pkg";
		1493
		1494	open my $fh, "<:utf8", $path
		1495	or die "$path: $!";
		1496
		1497	my $source = do { local $/; <$fh> };
		1498
		1499	my %ext = (
		1500	path => $path,
		1501	base => $base,
		1502	pkg => $pkg,
		1503	);
		1504
		1505	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1506	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1507
		1508	$ext{source} =
		1509	"package $pkg; use common::sense;\n"
		1510	. "#line 1 \"$path\"\n{\n"
		1511	. $source
		1512	. "\n};\n1";
		1513
		1514	$todo{$base} = \%ext;
		1515	}
		1516
		1517	my $pass = 0;
		1518	my %done;
		1519	while (%todo) {
		1520	my $progress;
		1521
		1522	++$pass;
		1523
		1524	ext:
		1525	while (my ($k, $v) = each %todo) {
		1526	for (split /,\s*/, $v->{meta}{depends}) {
		1527	next ext
		1528	unless exists $done{$_};
		1529	}
		1530
		1531	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1532
		1533	my $active = eval $v->{source};
		1534
		1535	if (length $@) {
		1536	error "$v->{path}: $@\n";
		1537
		1538	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1539	if exists $v->{meta}{mandatory};
		1540
		1541	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1542	delete $todo{$k};
		1543	} else {
		1544	$done{$k} = delete $todo{$k};
		1545	push @EXTS, $v->{pkg};
		1546	$progress = 1;
		1547
		1548	info "$v->{base}: extension inactive.\n"
		1549	unless $active;
		1550	}
959	1	1551	}
960	} or warn "$ext not loaded: $@";	1552
		1553	unless ($progress) {
		1554	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1555
		1556	while (my ($k, $v) = each %todo) {
		1557	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1558	if exists $v->{meta}{mandatory};
		1559	}
		1560
		1561	last;
		1562	}
		1563	}
961	}	1564	};
962	}	1565	}
963		1566
964	#############################################################################	1567	#############################################################################
965	# load/save/clean perl data associated with a map
966		1568
967	*cf::mapsupport::on_clean = sub {	1569	=back
		1570
		1571	=head2 CORE EXTENSIONS
		1572
		1573	Functions and methods that extend core deliantra objects.
		1574
		1575	=cut
		1576
		1577	package cf::player;
		1578
		1579	use Coro::AIO;
		1580
		1581	=head3 cf::player
		1582
		1583	=over 4
		1584
		1585	=item cf::player::num_playing
		1586
		1587	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1588
		1589	=cut
		1590
		1591	sub num_playing {
		1592	scalar grep
		1593	$_->ob->map
		1594	&& !$_->hidden
		1595	&& !$_->ob->flag (cf::FLAG_WIZ),
		1596	cf::player::list
		1597	}
		1598
		1599	=item cf::player::find $login
		1600
		1601	Returns the given player object, loading it if necessary (might block).
		1602
		1603	=cut
		1604
		1605	sub playerdir($) {
		1606	"$PLAYERDIR/"
		1607	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1608	}
		1609
		1610	sub path($) {
		1611	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1612
		1613	(playerdir $login) . "/playerdata"
		1614	}
		1615
		1616	sub find_active($) {
		1617	$cf::PLAYER{$_[0]}
		1618	and $cf::PLAYER{$_[0]}->active
		1619	and $cf::PLAYER{$_[0]}
		1620	}
		1621
		1622	sub exists($) {
968	my ($map) = @_;	1623	my ($login) = @_;
969		1624
970	my $path = $map->tmpname;	1625	$cf::PLAYER{$login}
971	defined $path or return;	1626	or !aio_stat path $login
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}	1627	}
984		1628
985	# TODO: compatibility cruft, remove when no longer needed	1629	sub find($) {
		1630	return $cf::PLAYER{$_[0]} || do {
		1631	my $login = $_[0];
		1632
		1633	my $guard = cf::lock_acquire "user_find:$login";
		1634
		1635	$cf::PLAYER{$_[0]} || do {
		1636	# rename old playerfiles to new ones
		1637	#TODO: remove when no longer required
		1638	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1639	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1640	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1641	aio_unlink +(playerdir $login) . "/$login.pl";
		1642
		1643	my $f = new_from_file cf::object::thawer path $login
		1644	or return;
		1645
		1646	my $pl = cf::player::load_pl $f
		1647	or return;
		1648
		1649	local $cf::PLAYER_LOADING{$login} = $pl;
		1650	$f->resolve_delayed_derefs;
		1651	$cf::PLAYER{$login} = $pl
		1652	}
		1653	}
		1654	}
		1655
986	cf::player->attach (	1656	cf::player->attach (
987	on_load => sub {	1657	on_load => sub {
988	my ($pl, $path) = @_;	1658	my ($pl, $path) = @_;
989		1659
990	for my $o (all_objects $pl->ob) {	1660	# restore slots saved in save, below
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1661	my $slots = delete $pl->{_slots};
992	$o->set_ob_key_value ("_perl_data");
993		1662
994	%$o = %{ Storable::thaw pack "H*", $value };	1663	$pl->ob->current_weapon ($slots->[0]);
995	}	1664	$pl->combat_ob ($slots->[1]);
996	}	1665	$pl->ranged_ob ($slots->[2]);
997	},	1666	},
998	);	1667	);
999		1668
1000	#############################################################################	1669	sub save($) {
		1670	my ($pl) = @_;
1001		1671
1002	=head2 CORE EXTENSIONS	1672	return if $pl->{deny_save};
1003		1673
1004	Functions and methods that extend core crossfire objects.	1674	my $path = path $pl;
		1675	my $guard = cf::lock_acquire "user_save:$path";
1005		1676
1006	=head3 cf::player	1677	return if $pl->{deny_save};
		1678
		1679	aio_mkdir playerdir $pl, 0770;
		1680	$pl->{last_save} = $cf::RUNTIME;
		1681
		1682	cf::get_slot 0.01;
		1683
		1684	# save slots, to be restored later
		1685	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1686
		1687	$pl->save_pl ($path);
		1688	cf::cede_to_tick;
		1689	}
		1690
		1691	sub new($) {
		1692	my ($login) = @_;
		1693
		1694	my $self = create;
		1695
		1696	$self->ob->name ($login);
		1697	$self->{deny_save} = 1;
		1698
		1699	$cf::PLAYER{$login} = $self;
		1700
		1701	$self
		1702	}
		1703
		1704	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1705
		1706	=cut
		1707
		1708	sub send_msg {
		1709	my $ns = shift->ns
		1710	or return;
		1711	$ns->send_msg (@_);
		1712	}
		1713
		1714	=item $pl->quit_character
		1715
		1716	Nukes the player without looking back. If logged in, the connection will
		1717	be destroyed. May block for a long time.
		1718
		1719	=cut
		1720
		1721	sub quit_character {
		1722	my ($pl) = @_;
		1723
		1724	my $name = $pl->ob->name;
		1725
		1726	$pl->{deny_save} = 1;
		1727	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1728
		1729	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
		1730	$pl->deactivate;
		1731
		1732	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1733	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1734	ext::highscore::check ($pl->ob);
		1735
		1736	$pl->ns->destroy if $pl->ns;
		1737
		1738	my $path = playerdir $pl;
		1739	my $temp = "$path~$cf::RUNTIME~deleting~";
		1740	aio_rename $path, $temp;
		1741	delete $cf::PLAYER{$pl->ob->name};
		1742	$pl->destroy;
		1743
		1744	my $prefix = qr<^~\Q$name\E/>;
		1745
		1746	# nuke player maps
		1747	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1748
		1749	IO::AIO::aio_rmtree $temp;
		1750	}
		1751
		1752	=item $pl->kick
		1753
		1754	Kicks a player out of the game. This destroys the connection.
		1755
		1756	=cut
		1757
		1758	sub kick {
		1759	my ($pl, $kicker) = @_;
		1760
		1761	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1762	$pl->killer ("kicked");
		1763	$pl->ns->destroy;
		1764	}
		1765
		1766	=item cf::player::list_logins
		1767
		1768	Returns am arrayref of all valid playernames in the system, can take a
		1769	while and may block, so not sync_job-capable, ever.
		1770
		1771	=cut
		1772
		1773	sub list_logins {
		1774	my $dirs = aio_readdir $PLAYERDIR
		1775	or return [];
		1776
		1777	my @logins;
		1778
		1779	for my $login (@$dirs) {
		1780	my $path = path $login;
		1781
		1782	# a .pst is a dead give-away for a valid player
		1783	# if no pst file found, open and chekc for blocked users
		1784	if (aio_stat "$path.pst") {
		1785	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1786	aio_read $fh, 0, 512, my $buf, 0 or next;
		1787	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1788	}
		1789
		1790	utf8::decode $login;
		1791	push @logins, $login;
		1792	}
		1793
		1794	\@logins
		1795	}
		1796
		1797	=item $player->maps
		1798
		1799	=item cf::player::maps $login
		1800
		1801	Returns an arrayref of map paths that are private for this
		1802	player. May block.
		1803
		1804	=cut
		1805
		1806	sub maps($) {
		1807	my ($pl) = @_;
		1808
		1809	$pl = ref $pl ? $pl->ob->name : $pl;
		1810
		1811	my $files = aio_readdir playerdir $pl
		1812	or return;
		1813
		1814	my @paths;
		1815
		1816	for (@$files) {
		1817	utf8::decode $_;
		1818	next if /\.(?:pl|pst)$/;
		1819	next unless /^$PATH_SEP/o;
		1820
		1821	push @paths, cf::map::normalise "~$pl/$_";
		1822	}
		1823
		1824	\@paths
		1825	}
		1826
		1827	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1828
		1829	Expand deliantra pod fragments into protocol xml.
		1830
		1831	=item $player->ext_reply ($msgid, @msg)
		1832
		1833	Sends an ext reply to the player.
		1834
		1835	=cut
		1836
		1837	sub ext_reply($$@) {
		1838	my ($self, $id, @msg) = @_;
		1839
		1840	$self->ns->ext_reply ($id, @msg)
		1841	}
		1842
		1843	=item $player->ext_msg ($type, @msg)
		1844
		1845	Sends an ext event to the client.
		1846
		1847	=cut
		1848
		1849	sub ext_msg($$@) {
		1850	my ($self, $type, @msg) = @_;
		1851
		1852	$self->ns->ext_msg ($type, @msg);
		1853	}
		1854
		1855	=head3 cf::region
1007		1856
1008	=over 4	1857	=over 4
1009		1858
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut	1859	=cut
1015		1860
1016	sub cf::player::exists($) {	1861	package cf::region;
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020		1862
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1863	=item cf::region::find_by_path $path
1022		1864
1023	Sends an ext reply to the player.	1865	Tries to decuce the likely region for a map knowing only its path.
1024		1866
1025	=cut	1867	=cut
1026		1868
1027	sub cf::player::ext_reply($$$%) {	1869	sub find_by_path($) {
1028	my ($self, $id, %msg) = @_;	1870	my ($path) = @_;
1029		1871
1030	$msg{msgid} = $id;	1872	$path =~ s/^~[^\/]*//; # skip ~login
1031		1873
1032	$self->send ("ext " . to_json \%msg);	1874	my ($match, $specificity);
		1875
		1876	for my $region (list) {
		1877	if ($region->{match} && $path =~ $region->{match}) {
		1878	($match, $specificity) = ($region, $region->specificity)
		1879	if $region->specificity > $specificity;
		1880	}
		1881	}
		1882
		1883	$match
1033	}	1884	}
1034		1885
1035	=back	1886	=back
1036
1037		1887
1038	=head3 cf::map	1888	=head3 cf::map
1039		1889
1040	=over 4	1890	=over 4
1041		1891
…		…
1044	package cf::map;	1894	package cf::map;
1045		1895
1046	use Fcntl;	1896	use Fcntl;
1047	use Coro::AIO;	1897	use Coro::AIO;
1048		1898
		1899	use overload
		1900	'""' => \&as_string,
		1901	fallback => 1;
		1902
1049	our $MAX_RESET = 7200;	1903	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1904	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1905
1054	sub generate_random_map {	1906	sub generate_random_map {
		1907	my ($self, $rmp) = @_;
		1908
		1909	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1910
		1911	$self->_create_random_map ($rmp);
		1912	}
		1913
		1914	=item cf::map->register ($regex, $prio)
		1915
		1916	Register a handler for the map path matching the given regex at the
		1917	givne priority (higher is better, built-in handlers have priority 0, the
		1918	default).
		1919
		1920	=cut
		1921
		1922	sub register {
		1923	my (undef, $regex, $prio) = @_;
		1924	my $pkg = caller;
		1925
		1926	push @{"$pkg\::ISA"}, __PACKAGE__;
		1927
		1928	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1929	}
		1930
		1931	# also paths starting with '/'
		1932	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1933
		1934	sub thawer_merge {
		1935	my ($self, $merge) = @_;
		1936
		1937	# we have to keep some variables in memory intact
		1938	local $self->{path};
		1939	local $self->{load_path};
		1940
		1941	$self->SUPER::thawer_merge ($merge);
		1942	}
		1943
		1944	sub normalise {
1055	my ($path, $rmp) = @_;	1945	my ($path, $base) = @_;
1056		1946
1057	# mit "rum" bekleckern, nicht	1947	$path = "$path"; # make sure it's a string
1058	cf::map::_create_random_map	1948
		1949	$path =~ s/\.map$//;
		1950
		1951	# map plan:
		1952	#
		1953	# /! non-realised random map exit (special hack!)
		1954	# {... are special paths that are not being touched
		1955	# ?xxx/... are special absolute paths
		1956	# ?random/... random maps
		1957	# /... normal maps
		1958	# ~user/... per-player map of a specific user
		1959
		1960	$path =~ s/$PATH_SEP/\//go;
		1961
		1962	# treat it as relative path if it starts with
		1963	# something that looks reasonable
		1964	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1965	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1966
		1967	$base =~ s{[^/]+/?$}{};
		1968	$path = "$base/$path";
		1969	}
		1970
		1971	for ($path) {
		1972	redo if s{/\.?/}{/};
		1973	redo if s{/[^/]+/\.\./}{/};
		1974	}
		1975
1059	$path,	1976	$path
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})
1071	}	1977	}
1072		1978
1073	# and all this just because we cannot iterate over	1979	sub new_from_path {
1074	# all maps in C++...	1980	my (undef, $path, $base) = @_;
1075	sub change_all_map_light {	1981
		1982	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1983
		1984	$path = normalise $path, $base;
		1985
		1986	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1987	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1988	my $self = bless cf::map::new, $pkg;
		1989	$self->{path} = $path; $self->path ($path);
		1990	$self->init; # pass $1 etc.
		1991	return $self;
		1992	}
		1993	}
		1994
		1995	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1996	()
		1997	}
		1998
		1999	# may re-bless or do other evil things
		2000	sub init {
1076	my ($change) = @_;	2001	my ($self) = @_;
1077		2002
1078	$_->change_map_light ($change) for values %cf::MAP;	2003	$self
1079	}	2004	}
1080		2005
		2006	sub as_string {
		2007	my ($self) = @_;
		2008
		2009	"$self->{path}"
		2010	}
		2011
		2012	# the displayed name, this is a one way mapping
		2013	sub visible_name {
		2014	&as_string
		2015	}
		2016
		2017	# the original (read-only) location
		2018	sub load_path {
		2019	my ($self) = @_;
		2020
		2021	"$MAPDIR/$self->{path}.map"
		2022	}
		2023
		2024	# the temporary/swap location
		2025	sub save_path {
		2026	my ($self) = @_;
		2027
		2028	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2029	"$TMPDIR/$path.map"
		2030	}
		2031
		2032	# the unique path, undef == no special unique path
		2033	sub uniq_path {
		2034	my ($self) = @_;
		2035
		2036	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2037	"$UNIQUEDIR/$path"
		2038	}
		2039
		2040	sub decay_objects {
		2041	my ($self) = @_;
		2042
		2043	return if $self->{deny_reset};
		2044
		2045	$self->do_decay_objects;
		2046	}
		2047
		2048	sub unlink_save {
		2049	my ($self) = @_;
		2050
		2051	utf8::encode (my $save = $self->save_path);
		2052	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2053	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2054	}
		2055
1081	sub try_load_header($) {	2056	sub load_header_from($) {
1082	my ($path) = @_;	2057	my ($self, $path) = @_;
1083		2058
1084	utf8::encode $path;	2059	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	2060	my $f = new_from_file cf::object::thawer $path
1086	or return;	2061	or return;
1087		2062
1088	my $map = cf::map::new	2063	$self->_load_header ($f)
1089	or return;	2064	or return;
1090		2065
1091	$map->load_header ($path)	2066	local $MAP_LOADING{$self->{path}} = $self;
		2067	$f->resolve_delayed_derefs;
		2068
		2069	$self->{load_path} = $path;
		2070
		2071	1
		2072	}
		2073
		2074	# used to laod the header of an original map
		2075	sub load_header_orig {
		2076	my ($self) = @_;
		2077
		2078	$self->load_header_from ($self->load_path)
		2079	}
		2080
		2081	# used to laod the header of an instantiated map
		2082	sub load_header_temp {
		2083	my ($self) = @_;
		2084
		2085	$self->load_header_from ($self->save_path)
		2086	}
		2087
		2088	# called after loading the header from an instantiated map
		2089	sub prepare_temp {
		2090	my ($self) = @_;
		2091
		2092	$self->last_access ((delete $self->{last_access})
		2093	|| $cf::RUNTIME); #d#
		2094	# safety
		2095	$self->{instantiate_time} = $cf::RUNTIME
		2096	if $self->{instantiate_time} > $cf::RUNTIME;
		2097	}
		2098
		2099	# called after loading the header from an original map
		2100	sub prepare_orig {
		2101	my ($self) = @_;
		2102
		2103	$self->{load_original} = 1;
		2104	$self->{instantiate_time} = $cf::RUNTIME;
		2105	$self->last_access ($cf::RUNTIME);
		2106	$self->instantiate;
		2107	}
		2108
		2109	sub load_header {
		2110	my ($self) = @_;
		2111
		2112	if ($self->load_header_temp) {
		2113	$self->prepare_temp;
		2114	} else {
		2115	$self->load_header_orig
1092	or return;	2116	or return;
		2117	$self->prepare_orig;
		2118	}
1093		2119
1094	$map->{load_path} = $path;	2120	$self->{deny_reset} = 1
1095	use Data::Dumper; warn Dumper $map;#d#	2121	if $self->no_reset;
1096		2122
1097	$map	2123	$self->default_region (cf::region::find_by_path $self->{path})
1098	}	2124	unless $self->default_region;
1099		2125
		2126	1
		2127	}
		2128
		2129	sub find;
1100	sub find_map {	2130	sub find {
1101	my ($path, $origin) = @_;	2131	my ($path, $origin) = @_;
1102		2132
1103	#warn "find_map<$path,$origin>\n";#d#	2133	cf::cede_to_tick;
1104		2134
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	2135	$path = normalise $path, $origin;
1106	my $key = $path->as_string;
1107		2136
		2137	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2138	my $guard2 = cf::lock_acquire "map_find:$path";
		2139
1108	$cf::MAP{$key} || do {	2140	$cf::MAP{$path} || do {
1109	# do it the slow way	2141	my $map = new_from_path cf::map $path
1110	my $map = try_load_header $path->save_path;
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	2142	or return;
1124		2143
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	2144	$map->{last_save} = $cf::RUNTIME;
1136		2145
1137	$map->reset if $map->should_reset;	2146	$map->load_header
		2147	or return;
1138		2148
		2149	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2150	# doing this can freeze the server in a sync job, obviously
		2151	#$cf::WAIT_FOR_TICK->wait;
		2152	undef $guard2;
		2153	undef $guard1;
		2154	$map->reset;
		2155	return find $path;
		2156	}
		2157
1139	$cf::MAP{$key} = $map	2158	$cf::MAP{$path} = $map
1140	}	2159	}
1141	}	2160	}
		2161
		2162	sub pre_load { }
		2163	#sub post_load { } # XS
1142		2164
1143	sub load {	2165	sub load {
1144	my ($self) = @_;	2166	my ($self) = @_;
1145		2167
1146	return if $self->in_memory != cf::MAP_SWAPPED;	2168	local $self->{deny_reset} = 1; # loading can take a long time
1147
1148	$self->in_memory (cf::MAP_LOADING);
1149		2169
1150	my $path = $self->{path};	2170	my $path = $self->{path};
1151		2171
		2172	{
		2173	my $guard = cf::lock_acquire "map_data:$path";
		2174
		2175	return unless $self->valid;
		2176	return unless $self->in_memory == cf::MAP_SWAPPED;
		2177
1152	$self->alloc;	2178	$self->alloc;
1153	$self->load_objects ($self->{load_path}, 1)	2179
		2180	$self->pre_load;
		2181	cf::cede_to_tick;
		2182
		2183	if (exists $self->{load_path}) {
		2184	my $f = new_from_file cf::object::thawer $self->{load_path};
		2185	$f->skip_block;
		2186	$self->_load_objects ($f)
1154	or return;	2187	or return;
1155		2188
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	2189	$self->post_load_original
		2190	if delete $self->{load_original};
1157		2191
1158	if (my $uniq = $path->uniq_path) {	2192	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	2193	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	2194	unless (aio_stat $uniq) {
		2195	if (my $f = new_from_file cf::object::thawer $uniq) {
1161	$self->clear_unique_items;	2196	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	2197	$self->_load_objects ($f);
		2198	$f->resolve_delayed_derefs;
		2199	}
		2200	}
1163	}	2201	}
1164	}
1165		2202
		2203	$f->resolve_delayed_derefs;
		2204	} else {
		2205	$self->post_load_original
		2206	if delete $self->{load_original};
		2207	}
		2208
		2209	$self->in_memory (cf::MAP_INACTIVE);
		2210
		2211	cf::cede_to_tick;
1166	# now do the right thing for maps	2212	# now do the right thing for maps
1167	$self->link_multipart_objects;	2213	$self->link_multipart_objects;
1168
1169	if ($self->{path}->is_style_map) {
1170	$self->{deny_save} = 1;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;
1176	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	2214	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	2215	unless $self->difficulty;
1179	$self->activate;	2216	cf::cede_to_tick;
		2217
		2218	unless ($self->{deny_activate}) {
		2219	$self->decay_objects;
		2220	$self->fix_auto_apply;
		2221	$self->update_buttons;
		2222	cf::cede_to_tick;
		2223	#$self->activate; # no longer activate maps automatically
		2224	}
		2225
		2226	$self->{last_save} = $cf::RUNTIME;
		2227	$self->last_access ($cf::RUNTIME);
		2228	}
		2229
		2230	$self->post_load;
		2231
1180	}	2232	1
1181
1182	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	2233	}
1184		2234
1185	sub load_map_sync {	2235	# customize the map for a given player, i.e.
		2236	# return the _real_ map. used by e.g. per-player
		2237	# maps to change the path to ~playername/mappath
		2238	sub customise_for {
		2239	my ($self, $ob) = @_;
		2240
		2241	return find "~" . $ob->name . "/" . $self->{path}
		2242	if $self->per_player;
		2243
		2244	# return find "?party/" . $ob->name . "/" . $self->{path}
		2245	# if $self->per_party;
		2246
		2247	$self
		2248	}
		2249
		2250	# find and load all maps in the 3x3 area around a map
		2251	sub load_neighbours {
		2252	my ($map) = @_;
		2253
		2254	my @neigh; # diagonal neighbours
		2255
		2256	for (0 .. 3) {
		2257	my $neigh = $map->tile_path ($_)
		2258	or next;
		2259	$neigh = find $neigh, $map
		2260	or next;
		2261	$neigh->load;
		2262
		2263	# now find the diagonal neighbours
		2264	push @neigh,
		2265	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2266	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2267	}
		2268
		2269	for (grep defined $_->[0], @neigh) {
		2270	my ($path, $origin) = @$_;
		2271	my $neigh = find $path, $origin
		2272	or next;
		2273	$neigh->load;
		2274	}
		2275	}
		2276
		2277	sub find_sync {
1186	my ($path, $origin) = @_;	2278	my ($path, $origin) = @_;
1187		2279
1188	#warn "load_map_sync<$path, $origin>\n";#d#	2280	# it's a bug to call this from the main context
		2281	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2282	if $Coro::current == $Coro::main;
1189		2283
1190	cf::sync_job {	2284	find $path, $origin
1191	my $map = cf::map::find_map $path, $origin	2285	}
1192	or return;	2286
		2287	sub do_load_sync {
		2288	my ($map) = @_;
		2289
		2290	# it's a bug to call this from the main context
		2291	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2292	if $Coro::current == $Coro::main;
		2293
1193	$map->load;	2294	$map->load;
1194	$map	2295	}
		2296
		2297	our %MAP_PREFETCH;
		2298	our $MAP_PREFETCHER = undef;
		2299
		2300	sub find_async {
		2301	my ($path, $origin, $load) = @_;
		2302
		2303	$path = normalise $path, $origin;
		2304
		2305	if (my $map = $cf::MAP{$path}) {
		2306	return $map if !$load || $map->linkable;
		2307	}
		2308
		2309	$MAP_PREFETCH{$path} |= $load;
		2310
		2311	$MAP_PREFETCHER ||= cf::async {
		2312	$Coro::current->{desc} = "map prefetcher";
		2313
		2314	while (%MAP_PREFETCH) {
		2315	while (my ($k, $v) = each %MAP_PREFETCH) {
		2316	if (my $map = find $k) {
		2317	$map->load if $v;
		2318	}
		2319
		2320	delete $MAP_PREFETCH{$k};
		2321	}
		2322	}
		2323	undef $MAP_PREFETCHER;
		2324	};
		2325	$MAP_PREFETCHER->prio (6);
		2326
		2327	()
		2328	}
		2329
		2330	# common code, used by both ->save and ->swapout
		2331	sub _save {
		2332	my ($self) = @_;
		2333
		2334	$self->{last_save} = $cf::RUNTIME;
		2335
		2336	return unless $self->dirty;
		2337
		2338	my $save = $self->save_path; utf8::encode $save;
		2339	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2340
		2341	$self->{load_path} = $save;
		2342
		2343	return if $self->{deny_save};
		2344
		2345	local $self->{last_access} = $self->last_access;#d#
		2346
		2347	cf::async {
		2348	$Coro::current->{desc} = "map player save";
		2349	$_->contr->save for $self->players;
		2350	};
		2351
		2352	cf::get_slot 0.02;
		2353
		2354	if ($uniq) {
		2355	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2356	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2357	} else {
		2358	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1195	}	2359	}
1196	}	2360	}
1197		2361
1198	sub save {	2362	sub save {
1199	my ($self) = @_;	2363	my ($self) = @_;
1200		2364
1201	my $save = $self->{path}->save_path; utf8::encode $save;	2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		2366
1204	$self->{last_save} = $cf::RUNTIME;	2367	$self->_save;
1205
1206	return unless $self->dirty;
1207
1208	$self->{load_path} = $save;
1209
1210	return if $self->{deny_save};
1211
1212	warn "saving map ", $self->path;
1213
1214	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}
1220	}	2368	}
1221		2369
1222	sub swap_out {	2370	sub swap_out {
1223	my ($self) = @_;	2371	my ($self) = @_;
1224		2372
		2373	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2374
		2375	return if !$self->linkable;
		2376	return if $self->{deny_save};
1225	return if $self->players;	2377	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};
1228		2378
		2379	# first deactivate the map and "unlink" it from the core
		2380	$self->deactivate;
		2381	$_->clear_links_to ($self) for values %cf::MAP;
		2382	$self->in_memory (cf::MAP_SWAPPED);
		2383
		2384	# then atomically save
1229	$self->save;	2385	$self->_save;
		2386
		2387	# then free the map
1230	$self->clear;	2388	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	2389	}
		2390
		2391	sub reset_at {
		2392	my ($self) = @_;
		2393
		2394	# TODO: safety, remove and allow resettable per-player maps
		2395	return 1e99 if $self->{deny_reset};
		2396
		2397	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2398	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2399
		2400	$time + $to
1232	}	2401	}
1233		2402
1234	sub should_reset {	2403	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	2404	my ($self) = @_;
1251		2405
1252	utf8::encode (my $save = $self->{path}->save_path);	2406	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	2407	}
1256		2408
1257	sub reset {	2409	sub reset {
1258	my ($self) = @_;	2410	my ($self) = @_;
1259		2411
		2412	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2413
1260	return if $self->players;	2414	return if $self->players;
1261	return if $self->{path}{user_rel};#d#
1262		2415
1263	warn "resetting map ", $self->path;#d#	2416	cf::trace "resetting map ", $self->path, "\n";
		2417
		2418	$self->in_memory (cf::MAP_SWAPPED);
		2419
		2420	# need to save uniques path
		2421	unless ($self->{deny_save}) {
		2422	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2423
		2424	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2425	if $uniq;
		2426	}
1264		2427
1265	delete $cf::MAP{$self->path};	2428	delete $cf::MAP{$self->path};
1266		2429
		2430	$self->deactivate;
1267	$_->clear_links_to ($self) for values %cf::MAP;	2431	$_->clear_links_to ($self) for values %cf::MAP;
		2432	$self->clear;
1268		2433
1269	$self->unlink_save;	2434	$self->unlink_save;
1270	$self->destroy;	2435	$self->destroy;
1271	}	2436	}
1272		2437
1273	sub customise_for {	2438	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		2439
1276	if ($map->per_player) {	2440	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2441	my ($self) = @_;
		2442
1278	}	2443	{
		2444	my $lock = cf::lock_acquire "map_data:$self->{path}";
1279		2445
1280	$map	2446	delete $cf::MAP{$self->path};
1281	}
1282		2447
1283	sub emergency_save {	2448	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		2449
1286	warn "enter emergency map save\n";	2450	bless $self, "cf::map::wrap";
		2451	delete $self->{deny_reset};
		2452	$self->{deny_save} = 1;
		2453	$self->reset_timeout (1);
		2454	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		2455
1288	cf::sync_job {	2456	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";
1290	$_->save for values %cf::MAP;
1291	};	2457	}
1292		2458
1293	warn "end emergency map save\n";	2459	$self->reset; # polite request, might not happen
		2460	}
		2461
		2462	=item $maps = cf::map::tmp_maps
		2463
		2464	Returns an arrayref with all map paths of currently instantiated and saved
		2465	maps. May block.
		2466
		2467	=cut
		2468
		2469	sub tmp_maps() {
		2470	[
		2471	map {
		2472	utf8::decode $_;
		2473	/\.map$/
		2474	? normalise $_
		2475	: ()
		2476	} @{ aio_readdir $TMPDIR or [] }
		2477	]
		2478	}
		2479
		2480	=item $maps = cf::map::random_maps
		2481
		2482	Returns an arrayref with all map paths of currently instantiated and saved
		2483	random maps. May block.
		2484
		2485	=cut
		2486
		2487	sub random_maps() {
		2488	[
		2489	map {
		2490	utf8::decode $_;
		2491	/\.map$/
		2492	? normalise "?random/$_"
		2493	: ()
		2494	} @{ aio_readdir $RANDOMDIR or [] }
		2495	]
		2496	}
		2497
		2498	=item cf::map::unique_maps
		2499
		2500	Returns an arrayref of paths of all shared maps that have
		2501	instantiated unique items. May block.
		2502
		2503	=cut
		2504
		2505	sub unique_maps() {
		2506	[
		2507	map {
		2508	utf8::decode $_;
		2509	s/\.map$//; # TODO future compatibility hack
		2510	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2511	? ()
		2512	: normalise $_
		2513	} @{ aio_readdir $UNIQUEDIR or [] }
		2514	]
		2515	}
		2516
		2517	=item cf::map::static_maps
		2518
		2519	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2520	file in the shared directory excluding F</styles> and F</editor>). May
		2521	block.
		2522
		2523	=cut
		2524
		2525	sub static_maps() {
		2526	my @dirs = "";
		2527	my @maps;
		2528
		2529	while (@dirs) {
		2530	my $dir = shift @dirs;
		2531
		2532	next if $dir eq "/styles" || $dir eq "/editor";
		2533
		2534	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2535	or return;
		2536
		2537	for (@$files) {
		2538	s/\.map$// or next;
		2539	utf8::decode $_;
		2540	push @maps, "$dir/$_";
		2541	}
		2542
		2543	push @dirs, map "$dir/$_", @$dirs;
		2544	}
		2545
		2546	\@maps
		2547	}
		2548
		2549	=back
		2550
		2551	=head3 cf::object
		2552
		2553	=cut
		2554
		2555	package cf::object;
		2556
		2557	=over 4
		2558
		2559	=item $ob->inv_recursive
		2560
		2561	Returns the inventory of the object I<and> their inventories, recursively,
		2562	but I<not> the object itself.
		2563
		2564	=cut
		2565
		2566	sub inv_recursive_;
		2567	sub inv_recursive_ {
		2568	map { $_, inv_recursive_ $_->inv } @_
		2569	}
		2570
		2571	sub inv_recursive {
		2572	inv_recursive_ inv $_[0]
		2573	}
		2574
		2575	=item $ref = $ob->ref
		2576
		2577	Creates and returns a persistent reference to an object that can be stored as a string.
		2578
		2579	=item $ob = cf::object::deref ($refstring)
		2580
		2581	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2582	even if the object actually exists. May block.
		2583
		2584	=cut
		2585
		2586	sub deref {
		2587	my ($ref) = @_;
		2588
		2589	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2590	my ($uuid, $name) = ($1, $2);
		2591	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2592	or return;
		2593	$pl->ob->uuid eq $uuid
		2594	or return;
		2595
		2596	$pl->ob
		2597	} else {
		2598	warn "$ref: cannot resolve object reference\n";
		2599	undef
		2600	}
1294	}	2601	}
1295		2602
1296	package cf;	2603	package cf;
1297		2604
1298	=back	2605	=back
1299
1300		2606
1301	=head3 cf::object::player	2607	=head3 cf::object::player
1302		2608
1303	=over 4	2609	=over 4
1304		2610
…		…
1307	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2613	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1308	can be C<undef>. Does the right thing when the player is currently in a	2614	can be C<undef>. Does the right thing when the player is currently in a
1309	dialogue with the given NPC character.	2615	dialogue with the given NPC character.
1310		2616
1311	=cut	2617	=cut
		2618
		2619	our $SAY_CHANNEL = {
		2620	id => "say",
		2621	title => "Map",
		2622	reply => "say ",
		2623	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2624	};
		2625
		2626	our $CHAT_CHANNEL = {
		2627	id => "chat",
		2628	title => "Chat",
		2629	reply => "chat ",
		2630	tooltip => "Player chat and shouts, global to the server.",
		2631	};
1312		2632
1313	# rough implementation of a future "reply" method that works	2633	# rough implementation of a future "reply" method that works
1314	# with dialog boxes.	2634	# with dialog boxes.
1315	#TODO: the first argument must go, split into a $npc->reply_to ( method	2635	#TODO: the first argument must go, split into a $npc->reply_to ( method
1316	sub cf::object::player::reply($$$;$) {	2636	sub cf::object::player::reply($$$;$) {
…		…
1318		2638
1319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2639	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1320		2640
1321	if ($self->{record_replies}) {	2641	if ($self->{record_replies}) {
1322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2642	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2643
1323	} else {	2644	} else {
		2645	my $pl = $self->contr;
		2646
		2647	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2648	my $dialog = $pl->{npc_dialog};
		2649	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2650
		2651	} else {
1324	$msg = $npc->name . " says: $msg" if $npc;	2652	$msg = $npc->name . " says: $msg" if $npc;
1325	$self->message ($msg, $flags);	2653	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2654	}
1326	}	2655	}
		2656	}
		2657
		2658	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2659
		2660	=cut
		2661
		2662	sub cf::object::send_msg {
		2663	my $pl = shift->contr
		2664	or return;
		2665	$pl->send_msg (@_);
1327	}	2666	}
1328		2667
1329	=item $player_object->may ("access")	2668	=item $player_object->may ("access")
1330		2669
1331	Returns wether the given player is authorized to access resource "access"	2670	Returns wether the given player is authorized to access resource "access"
…		…
1340	(ref $cf::CFG{"may_$access"}	2679	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2680	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	2681	: $cf::CFG{"may_$access"})
1343	}	2682	}
1344		2683
		2684	=item $player_object->enter_link
		2685
		2686	Freezes the player and moves him/her to a special map (C<{link}>).
		2687
		2688	The player should be reasonably safe there for short amounts of time (e.g.
		2689	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2690	though, as the player cannot control the character while it is on the link
		2691	map.
		2692
		2693	Will never block.
		2694
		2695	=item $player_object->leave_link ($map, $x, $y)
		2696
		2697	Moves the player out of the special C<{link}> map onto the specified
		2698	map. If the map is not valid (or omitted), the player will be moved back
		2699	to the location he/she was before the call to C<enter_link>, or, if that
		2700	fails, to the emergency map position.
		2701
		2702	Might block.
		2703
		2704	=cut
		2705
		2706	sub link_map {
		2707	unless ($LINK_MAP) {
		2708	$LINK_MAP = cf::map::find "{link}"
		2709	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2710	$LINK_MAP->load;
		2711	}
		2712
		2713	$LINK_MAP
		2714	}
		2715
1345	sub cf::object::player::enter_link {	2716	sub cf::object::player::enter_link {
1346	my ($self) = @_;	2717	my ($self) = @_;
1347		2718
1348	return if $self->map == $LINK_MAP;
1349
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;
1352
1353	$self->enter_map ($LINK_MAP, 20, 20);
1354	$self->deactivate_recursive;	2719	$self->deactivate_recursive;
		2720
		2721	++$self->{_link_recursion};
		2722
		2723	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2724
		2725	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2726	if $self->map && $self->map->{path} ne "{link}";
		2727
		2728	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1355	}	2729	}
1356		2730
1357	sub cf::object::player::leave_link {	2731	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	2732	my ($self, $map, $x, $y) = @_;
1359		2733
		2734	return unless $self->contr->active;
		2735
1360	my $link_pos = delete $self->{_link_pos};	2736	my $link_pos = delete $self->{_link_pos};
1361		2737
1362	unless ($map) {	2738	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	2739	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	2740	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	2741	$map = cf::map::find $map;
1368		2742
1369	unless ($map) {	2743	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	2744	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	2745	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	2746	or die "FATAL: cannot load emergency map\n";
1373	}	2747	}
1374	}	2748	}
1375		2749
1376	($x, $y) = (-1, -1)	2750	($x, $y) = (-1, -1)
1377	unless (defined $x) && (defined $y);	2751	unless (defined $x) && (defined $y);
1378		2752
1379	# use -1 or undef as default coordinates, not 0, 0	2753	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	2754	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	2755	if $x <= 0 && $y <= 0;
1382		2756
1383	$map->load;	2757	$map->load;
		2758	$map->load_neighbours;
1384		2759
		2760	return unless $self->contr->active;
		2761
		2762	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2763	if ($self->enter_map ($map, $x, $y)) {
		2764	# entering was successful
		2765	delete $self->{_link_recursion};
		2766	# only activate afterwards, to support waiting in hooks
1385	$self->activate_recursive;	2767	$self->activate_recursive;
1386	$self->enter_map ($map, $x, $y);	2768	}
1387	}
1388		2769
1389	=item $player_object->goto_map ($map, $x, $y)	2770	}
1390		2771
1391	=cut	2772	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1392		2773
		2774	Moves the player to the given map-path and coordinates by first freezing
		2775	her, loading and preparing them map, calling the provided $check callback
		2776	that has to return the map if sucecssful, and then unfreezes the player on
		2777	the new (success) or old (failed) map position. In either case, $done will
		2778	be called at the end of this process.
		2779
		2780	Note that $check will be called with a potentially non-loaded map, so if
		2781	it needs a loaded map it has to call C<< ->load >>.
		2782
		2783	=cut
		2784
		2785	our $GOTOGEN;
		2786
1393	sub cf::object::player::goto_map {	2787	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	2788	my ($self, $path, $x, $y, $check, $done) = @_;
		2789
		2790	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2791	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2792	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2793	($path, $x, $y) = @$EMERGENCY_POSITION;
		2794	}
		2795
		2796	# do generation counting so two concurrent goto's will be executed in-order
		2797	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1395		2798
1396	$self->enter_link;	2799	$self->enter_link;
1397		2800
1398	(Coro::async {	2801	(async {
1399	$path = new cf::path $path;	2802	$Coro::current->{desc} = "player::goto $path $x $y";
1400		2803
1401	my $map = cf::map::find_map $path->as_string;	2804	# *tag paths override both path and x|y
		2805	if ($path =~ /^\*(.*)$/) {
		2806	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2807	my $ob = $obs[rand @obs];
		2808
		2809	# see if we actually can go there
		2810	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2811	$ob = $obs[rand @obs];
		2812	} else {
		2813	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2814	}
		2815	# else put us there anyways for now #d#
		2816
		2817	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2818	} else {
		2819	($path, $x, $y) = (undef, undef, undef);
		2820	}
		2821	}
		2822
		2823	my $map = eval {
		2824	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2825
		2826	if ($map) {
1402	$map = $map->customise_for ($self) if $map;	2827	$map = $map->customise_for ($self);
		2828	$map = $check->($map, $x, $y, $self) if $check && $map;
		2829	} else {
		2830	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2831	}
1403		2832
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	2833	$map
		2834	};
1406		2835
		2836	if ($@) {
		2837	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2838	LOG llevError | logBacktrace, Carp::longmess $@;
		2839	}
		2840
		2841	if ($gen == $self->{_goto_generation}) {
		2842	delete $self->{_goto_generation};
1407	$self->leave_link ($map, $x, $y);	2843	$self->leave_link ($map, $x, $y);
		2844	}
		2845
		2846	$done->($self) if $done;
1408	})->prio (1);	2847	})->prio (1);
1409	}	2848	}
1410		2849
1411	=item $player_object->enter_exit ($exit_object)	2850	=item $player_object->enter_exit ($exit_object)
1412		2851
…		…
1414		2853
1415	sub parse_random_map_params {	2854	sub parse_random_map_params {
1416	my ($spec) = @_;	2855	my ($spec) = @_;
1417		2856
1418	my $rmp = { # defaults	2857	my $rmp = { # defaults
1419	xsize => 10,	2858	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	2859	ysize => (cf::rndm 15, 40),
		2860	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2861	#layout => string,
1421	};	2862	};
1422		2863
1423	for (split /\n/, $spec) {	2864	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	2865	my ($k, $v) = split /\s+/, $_, 2;
1425		2866
…		…
1437	# that depends on the exit object	2878	# that depends on the exit object
1438		2879
1439	my $rmp = parse_random_map_params $exit->msg;	2880	my $rmp = parse_random_map_params $exit->msg;
1440		2881
1441	if ($exit->map) {	2882	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	2883	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	2884	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	2885	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	2886	$rmp->{origin_y} = $exit->y;
		2887
		2888	$exit->map->touch;
1446	}	2889	}
1447		2890
1448	$rmp->{random_seed} ||= $exit->random_seed;	2891	$rmp->{random_seed} ||= $exit->random_seed;
1449		2892
1450	my $data = cf::to_json $rmp;	2893	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1451	my $md5 = Digest::MD5::md5_hex $data;	2894	my $md5 = Digest::MD5::md5_hex $data;
		2895	my $meta = "$RANDOMDIR/$md5.meta";
1452		2896
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2897	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	2898	aio_write $fh, 0, (length $data), $data, 0;
		2899	undef $fh;
		2900	aio_rename "$meta~", $meta;
1455		2901
		2902	my $slaying = "?random/$md5";
		2903
		2904	if ($exit->valid) {
1456	$exit->slaying ("?random/$md5");	2905	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	2906	$exit->msg (undef);
		2907	}
1458	}	2908	}
1459	}	2909	}
1460		2910
1461	sub cf::object::player::enter_exit {	2911	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	2912	my ($self, $exit) = @_;
1463		2913
1464	return unless $self->type == cf::PLAYER;	2914	return unless $self->type == cf::PLAYER;
1465		2915
1466	$self->enter_link;	2916	$self->enter_link;
1467		2917
1468	(Coro::async {	2918	(async {
		2919	$Coro::current->{desc} = "enter_exit";
		2920
1469	unless (eval {	2921	unless (eval {
		2922	$self->deactivate_recursive; # just to be sure
1470		2923
		2924	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2925	my $x = $exit->stats->hp;
		2926	my $y = $exit->stats->sp;
		2927
		2928	# special map handling
		2929	my $slaying = $exit->slaying;
		2930
		2931	# special map handling
		2932	if ($slaying eq "/!") {
		2933	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2934
1471	prepare_random_map $exit	2935	prepare_random_map $exit
		2936	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2937
1472	if $exit->slaying eq "/!";	2938	$map = $exit->slaying;
1473		2939
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2940	} elsif ($slaying eq '!up') {
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2941	$map = $exit->map->tile_path (cf::TILE_UP);
		2942	$x = $exit->x;
		2943	$y = $exit->y;
1476		2944
		2945	} elsif ($slaying eq '!down') {
		2946	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2947	$x = $exit->x;
		2948	$y = $exit->y;
		2949	}
		2950
		2951	$self->goto ($map, $x, $y);
		2952
		2953	# if exit is damned, update players death & WoR home-position
		2954	$self->contr->savebed ($map, $x, $y)
		2955	if $exit->flag (cf::FLAG_DAMNED);
		2956
1477	1;	2957	1
1478	}) {	2958	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	2959	$self->message ("Something went wrong deep within the deliantra server. "
1480	. "I'll try to bring you back to the map you were before. "	2960	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	2961	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	2962	cf::NDI_UNIQUE | cf::NDI_RED);
1483		2963
1484	warn "ERROR in enter_exit: $@";	2964	error "ERROR in enter_exit: $@";
1485	$self->leave_link;	2965	$self->leave_link;
1486	}	2966	}
1487	})->prio (1);	2967	})->prio (1);
1488	}	2968	}
1489		2969
…		…
1500		2980
1501	sub cf::client::send_drawinfo {	2981	sub cf::client::send_drawinfo {
1502	my ($self, $text, $flags) = @_;	2982	my ($self, $text, $flags) = @_;
1503		2983
1504	utf8::encode $text;	2984	utf8::encode $text;
1505	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2985	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1506	}	2986	}
1507		2987
		2988	=item $client->send_big_packet ($pkt)
		2989
		2990	Like C<send_packet>, but tries to compress large packets, and fragments
		2991	them as required.
		2992
		2993	=cut
		2994
		2995	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2996
		2997	sub cf::client::send_big_packet {
		2998	my ($self, $pkt) = @_;
		2999
		3000	# try lzf for large packets
		3001	$pkt = "lzf " . Compress::LZF::compress $pkt
		3002	if 1024 <= length $pkt and $self->{can_lzf};
		3003
		3004	# split very large packets
		3005	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3006	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3007	$pkt = "frag";
		3008	}
		3009
		3010	$self->send_packet ($pkt);
		3011	}
		3012
		3013	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3014
		3015	Send a drawinfo or msg packet to the client, formatting the msg for the
		3016	client if neccessary. C<$type> should be a string identifying the type of
		3017	the message, with C<log> being the default. If C<$color> is negative, suppress
		3018	the message unless the client supports the msg packet.
		3019
		3020	=cut
		3021
		3022	# non-persistent channels (usually the info channel)
		3023	our %CHANNEL = (
		3024	"c/motd" => {
		3025	id => "infobox",
		3026	title => "MOTD",
		3027	reply => undef,
		3028	tooltip => "The message of the day",
		3029	},
		3030	"c/identify" => {
		3031	id => "infobox",
		3032	title => "Identify",
		3033	reply => undef,
		3034	tooltip => "Items recently identified",
		3035	},
		3036	"c/examine" => {
		3037	id => "infobox",
		3038	title => "Examine",
		3039	reply => undef,
		3040	tooltip => "Signs and other items you examined",
		3041	},
		3042	"c/shopinfo" => {
		3043	id => "infobox",
		3044	title => "Shop Info",
		3045	reply => undef,
		3046	tooltip => "What your bargaining skill tells you about the shop",
		3047	},
		3048	"c/book" => {
		3049	id => "infobox",
		3050	title => "Book",
		3051	reply => undef,
		3052	tooltip => "The contents of a note or book",
		3053	},
		3054	"c/lookat" => {
		3055	id => "infobox",
		3056	title => "Look",
		3057	reply => undef,
		3058	tooltip => "What you saw there",
		3059	},
		3060	"c/who" => {
		3061	id => "infobox",
		3062	title => "Players",
		3063	reply => undef,
		3064	tooltip => "Shows players who are currently online",
		3065	},
		3066	"c/body" => {
		3067	id => "infobox",
		3068	title => "Body Parts",
		3069	reply => undef,
		3070	tooltip => "Shows which body parts you posess and are available",
		3071	},
		3072	"c/statistics" => {
		3073	id => "infobox",
		3074	title => "Statistics",
		3075	reply => undef,
		3076	tooltip => "Shows your primary statistics",
		3077	},
		3078	"c/skills" => {
		3079	id => "infobox",
		3080	title => "Skills",
		3081	reply => undef,
		3082	tooltip => "Shows your experience per skill and item power",
		3083	},
		3084	"c/shopitems" => {
		3085	id => "infobox",
		3086	title => "Shop Items",
		3087	reply => undef,
		3088	tooltip => "Shows the items currently for sale in this shop",
		3089	},
		3090	"c/resistances" => {
		3091	id => "infobox",
		3092	title => "Resistances",
		3093	reply => undef,
		3094	tooltip => "Shows your resistances",
		3095	},
		3096	"c/pets" => {
		3097	id => "infobox",
		3098	title => "Pets",
		3099	reply => undef,
		3100	tooltip => "Shows information abotu your pets/a specific pet",
		3101	},
		3102	"c/perceiveself" => {
		3103	id => "infobox",
		3104	title => "Perceive Self",
		3105	reply => undef,
		3106	tooltip => "You gained detailed knowledge about yourself",
		3107	},
		3108	"c/uptime" => {
		3109	id => "infobox",
		3110	title => "Uptime",
		3111	reply => undef,
		3112	tooltip => "How long the server has been running since last restart",
		3113	},
		3114	"c/mapinfo" => {
		3115	id => "infobox",
		3116	title => "Map Info",
		3117	reply => undef,
		3118	tooltip => "Information related to the maps",
		3119	},
		3120	"c/party" => {
		3121	id => "party",
		3122	title => "Party",
		3123	reply => "gsay ",
		3124	tooltip => "Messages and chat related to your party",
		3125	},
		3126	"c/death" => {
		3127	id => "death",
		3128	title => "Death",
		3129	reply => undef,
		3130	tooltip => "Reason for and more info about your most recent death",
		3131	},
		3132	"c/say" => $SAY_CHANNEL,
		3133	"c/chat" => $CHAT_CHANNEL,
		3134	);
		3135
		3136	sub cf::client::send_msg {
		3137	my ($self, $channel, $msg, $color, @extra) = @_;
		3138
		3139	$msg = $self->pl->expand_cfpod ($msg)
		3140	unless $color & cf::NDI_VERBATIM;
		3141
		3142	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3143
		3144	# check predefined channels, for the benefit of C
		3145	if ($CHANNEL{$channel}) {
		3146	$channel = $CHANNEL{$channel};
		3147
		3148	$self->ext_msg (channel_info => $channel);
		3149	$channel = $channel->{id};
		3150
		3151	} elsif (ref $channel) {
		3152	# send meta info to client, if not yet sent
		3153	unless (exists $self->{channel}{$channel->{id}}) {
		3154	$self->{channel}{$channel->{id}} = $channel;
		3155	$self->ext_msg (channel_info => $channel);
		3156	}
		3157
		3158	$channel = $channel->{id};
		3159	}
		3160
		3161	return unless @extra || length $msg;
		3162
		3163	# default colour, mask it out
		3164	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3165	if $color & cf::NDI_DEF;
		3166
		3167	my $pkt = "msg "
		3168	. $self->{json_coder}->encode (
		3169	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3170	);
		3171
		3172	$self->send_big_packet ($pkt);
		3173	}
		3174
		3175	=item $client->ext_msg ($type, @msg)
		3176
		3177	Sends an ext event to the client.
		3178
		3179	=cut
		3180
		3181	sub cf::client::ext_msg($$@) {
		3182	my ($self, $type, @msg) = @_;
		3183
		3184	if ($self->extcmd == 2) {
		3185	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3186	} elsif ($self->extcmd == 1) { # TODO: remove
		3187	push @msg, msgtype => "event_$type";
		3188	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3189	}
		3190	}
		3191
		3192	=item $client->ext_reply ($msgid, @msg)
		3193
		3194	Sends an ext reply to the client.
		3195
		3196	=cut
		3197
		3198	sub cf::client::ext_reply($$@) {
		3199	my ($self, $id, @msg) = @_;
		3200
		3201	if ($self->extcmd == 2) {
		3202	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3203	} elsif ($self->extcmd == 1) {
		3204	#TODO: version 1, remove
		3205	unshift @msg, msgtype => "reply", msgid => $id;
		3206	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3207	}
		3208	}
1508		3209
1509	=item $success = $client->query ($flags, "text", \&cb)	3210	=item $success = $client->query ($flags, "text", \&cb)
1510		3211
1511	Queues a query to the client, calling the given callback with	3212	Queues a query to the client, calling the given callback with
1512	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3213	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1513	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3214	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1514		3215
1515	Queries can fail, so check the return code. Or don't, as queries will become	3216	Queries can fail, so check the return code. Or don't, as queries will
1516	reliable at some point in the future.	3217	become reliable at some point in the future.
1517		3218
1518	=cut	3219	=cut
1519		3220
1520	sub cf::client::query {	3221	sub cf::client::query {
1521	my ($self, $flags, $text, $cb) = @_;	3222	my ($self, $flags, $text, $cb) = @_;
…		…
1529	utf8::encode $text;	3230	utf8::encode $text;
1530	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3231	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1531		3232
1532	$self->send_packet ($self->{query_queue}[0][0])	3233	$self->send_packet ($self->{query_queue}[0][0])
1533	if @{ $self->{query_queue} } == 1;	3234	if @{ $self->{query_queue} } == 1;
		3235
		3236	1
1534	}	3237	}
1535		3238
1536	cf::client->attach (	3239	cf::client->attach (
		3240	on_connect => sub {
		3241	my ($ns) = @_;
		3242
		3243	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3244	},
1537	on_reply => sub {	3245	on_reply => sub {
1538	my ($ns, $msg) = @_;	3246	my ($ns, $msg) = @_;
1539		3247
1540	# this weird shuffling is so that direct followup queries	3248	# this weird shuffling is so that direct followup queries
1541	# get handled first	3249	# get handled first
1542	my $queue = delete $ns->{query_queue};	3250	my $queue = delete $ns->{query_queue}
		3251	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		3252
1544	(shift @$queue)->[1]->($msg);	3253	(shift @$queue)->[1]->($msg);
		3254	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		3255
1546	push @{ $ns->{query_queue} }, @$queue;	3256	push @{ $ns->{query_queue} }, @$queue;
1547		3257
1548	if (@{ $ns->{query_queue} } == @$queue) {	3258	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	3259	if (@$queue) {
…		…
1551	} else {	3261	} else {
1552	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3262	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1553	}	3263	}
1554	}	3264	}
1555	},	3265	},
		3266	on_exticmd => sub {
		3267	my ($ns, $buf) = @_;
		3268
		3269	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3270
		3271	if (ref $msg) {
		3272	my ($type, $reply, @payload) =
		3273	"ARRAY" eq ref $msg
		3274	? @$msg
		3275	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3276
		3277	my @reply;
		3278
		3279	if (my $cb = $EXTICMD{$type}) {
		3280	@reply = $cb->($ns, @payload);
		3281	}
		3282
		3283	$ns->ext_reply ($reply, @reply)
		3284	if $reply;
		3285
		3286	} else {
		3287	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3288	}
		3289
		3290	cf::override;
		3291	},
1556	);	3292	);
1557		3293
1558	=item $client->coro (\&cb)	3294	=item $client->async (\&cb)
1559		3295
1560	Create a new coroutine, running the specified callback. The coroutine will	3296	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	3297	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	3298	or loss of connection).
1563		3299
1564	=cut	3300	=cut
1565		3301
1566	sub cf::client::coro {	3302	sub cf::client::async {
1567	my ($self, $cb) = @_;	3303	my ($self, $cb) = @_;
1568		3304
1569	my $coro; $coro = async {	3305	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		3306
1576	$coro->on_destroy (sub {	3307	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	3308	delete $self->{_coro}{$coro+0};
1578	});	3309	});
1579		3310
…		…
1581		3312
1582	$coro	3313	$coro
1583	}	3314	}
1584		3315
1585	cf::client->attach (	3316	cf::client->attach (
1586	on_destroy => sub {	3317	on_client_destroy => sub {
1587	my ($ns) = @_;	3318	my ($ns) = @_;
1588		3319
1589	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3320	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1590	},	3321	},
1591	);	3322	);
…		…
1606	our $safe = new Safe "safe";	3337	our $safe = new Safe "safe";
1607	our $safe_hole = new Safe::Hole;	3338	our $safe_hole = new Safe::Hole;
1608		3339
1609	$SIG{FPE} = 'IGNORE';	3340	$SIG{FPE} = 'IGNORE';
1610		3341
1611	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3342	$safe->permit_only (Opcode::opset qw(
		3343	:base_core :base_mem :base_orig :base_math :base_loop
		3344	grepstart grepwhile mapstart mapwhile
		3345	sort time
		3346	));
1612		3347
1613	# here we export the classes and methods available to script code	3348	# here we export the classes and methods available to script code
1614		3349
1615	=pod	3350	=pod
1616		3351
1617	The following fucntions and emthods are available within a safe environment:	3352	The following functions and methods are available within a safe environment:
1618		3353
1619	cf::object contr pay_amount pay_player map	3354	cf::object
		3355	contr pay_amount pay_player map x y force_find force_add destroy
		3356	insert remove name archname title slaying race decrease split
		3357	value
		3358
1620	cf::object::player player	3359	cf::object::player
1621	cf::player peaceful	3360	player
1622	cf::map trigger	3361
		3362	cf::player
		3363	peaceful
		3364
		3365	cf::map
		3366	trigger
1623		3367
1624	=cut	3368	=cut
1625		3369
1626	for (	3370	for (
1627	["cf::object" => qw(contr pay_amount pay_player map)],	3371	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3372	insert remove inv nrof name archname title slaying race
		3373	decrease split destroy change_exp value msg lore send_msg)],
1628	["cf::object::player" => qw(player)],	3374	["cf::object::player" => qw(player)],
1629	["cf::player" => qw(peaceful)],	3375	["cf::player" => qw(peaceful send_msg)],
1630	["cf::map" => qw(trigger)],	3376	["cf::map" => qw(trigger)],
1631	) {	3377	) {
1632	no strict 'refs';
1633	my ($pkg, @funs) = @$_;	3378	my ($pkg, @funs) = @$_;
1634	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3379	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1635	for @funs;	3380	for @funs;
1636	}	3381	}
1637		3382
…		…
1652		3397
1653	my $qcode = $code;	3398	my $qcode = $code;
1654	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3399	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1655	$qcode =~ s/\n/\\n/g;	3400	$qcode =~ s/\n/\\n/g;
1656		3401
		3402	%vars = (_dummy => 0) unless %vars;
		3403
		3404	my @res;
1657	local $_;	3405	local $_;
1658	local @safe::cf::_safe_eval_args = values %vars;
1659		3406
1660	my $eval =	3407	my $eval =
1661	"do {\n"	3408	"do {\n"
1662	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3409	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1663	. "#line 0 \"{$qcode}\"\n"	3410	. "#line 0 \"{$qcode}\"\n"
1664	. $code	3411	. $code
1665	. "\n}"	3412	. "\n}"
1666	;	3413	;
1667		3414
		3415	if ($CFG{safe_eval}) {
1668	sub_generation_inc;	3416	sub_generation_inc;
		3417	local @safe::cf::_safe_eval_args = values %vars;
1669	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3418	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1670	sub_generation_inc;	3419	sub_generation_inc;
		3420	} else {
		3421	local @cf::_safe_eval_args = values %vars;
		3422	@res = wantarray ? eval eval : scalar eval $eval;
		3423	}
1671		3424
1672	if ($@) {	3425	if ($@) {
1673	warn "$@";	3426	warn "$@",
1674	warn "while executing safe code '$code'\n";	3427	"while executing safe code '$code'\n",
1675	warn "with arguments " . (join " ", %vars) . "\n";	3428	"with arguments " . (join " ", %vars) . "\n";
1676	}	3429	}
1677		3430
1678	wantarray ? @res : $res[0]	3431	wantarray ? @res : $res[0]
1679	}	3432	}
1680		3433
…		…
1694	=cut	3447	=cut
1695		3448
1696	sub register_script_function {	3449	sub register_script_function {
1697	my ($fun, $cb) = @_;	3450	my ($fun, $cb) = @_;
1698		3451
1699	no strict 'refs';	3452	$fun = "safe::$fun" if $CFG{safe_eval};
1700	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3453	*$fun = $safe_hole->wrap ($cb);
1701	}	3454	}
1702		3455
1703	=back	3456	=back
1704		3457
1705	=cut	3458	=cut
1706		3459
1707	#############################################################################	3460	#############################################################################
		3461	# the server's init and main functions
1708		3462
1709	=head2 EXTENSION DATABASE SUPPORT	3463	sub load_facedata($) {
		3464	my ($path) = @_;
1710		3465
1711	Crossfire maintains a very simple database for extension use. It can	3466	# HACK to clear player env face cache, we need some signal framework
1712	currently store anything that can be serialised using Storable, which	3467	# for this (global event?)
1713	excludes objects.	3468	%ext::player_env::MUSIC_FACE_CACHE = ();
1714		3469
1715	The parameter C<$family> should best start with the name of the extension	3470	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1716	using it, it should be unique.
1717		3471
1718	=over 4	3472	trace "loading facedata from $path\n";
1719		3473
1720	=item $hashref = cf::db_get $family	3474	my $facedata = decode_storable load_file $path;
1721		3475
1722	Return a hashref for use by the extension C<$family>, which can be	3476	$facedata->{version} == 2
1723	modified. After modifications, you have to call C<cf::db_dirty> or	3477	or cf::cleanup "$path: version mismatch, cannot proceed.";
1724	C<cf::db_sync>.
1725		3478
1726	=item $value = cf::db_get $family => $key	3479	# patch in the exptable
1727		3480	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1728	Returns a single value from the database	3481	$facedata->{resource}{"res/exp_table"} = {
1729		3482	type => FT_RSRC,
1730	=item cf::db_put $family => $hashref	3483	data => $exp_table,
1731		3484	hash => (Digest::MD5::md5 $exp_table),
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734
1735	=item cf::db_put $family => $key => $value
1736
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747
1748	=cut
1749
1750	our $DB;
1751
1752	{
1753	my $path = cf::localdir . "/database.pst";
1754
1755	sub db_load() {
1756	warn "loading database $path\n";#d# remove later
1757	$DB = stat $path ? Storable::retrieve $path : { };
1758	}
1759
1760	my $pid;
1761
1762	sub db_save() {
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});	3485	};
		3486	cf::cede_to_tick;
1783		3487
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}	3488	{
		3489	my $faces = $facedata->{faceinfo};
1788		3490
1789	sub db_get($;$) {	3491	while (my ($face, $info) = each %$faces) {
1790	@_ >= 2	3492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794		3493
1795	sub db_put($$;$) {	3494	cf::face::set_visibility $idx, $info->{visibility};
1796	if (@_ >= 3) {	3495	cf::face::set_magicmap $idx, $info->{magicmap};
1797	$DB->{$_[0]}{$_[1]} = $_[2];	3496	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1798	} else {	3497	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1799	$DB->{$_[0]} = $_[1];	3498	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
1800	}
1801	db_dirty;
1802	}
1803		3499
1804	cf::global->attach (	3500	cf::cede_to_tick;
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	3501	}
1809	);
1810	}
1811		3502
1812	#############################################################################	3503	while (my ($face, $info) = each %$faces) {
1813	# the server's main()	3504	next unless $info->{smooth};
1814		3505
1815	sub cfg_load {	3506	my $idx = cf::face::find $face
1816	open my $fh, "<:utf8", cf::confdir . "/config"	3507	or next;
1817	or return;
1818		3508
1819	local $/;	3509	if (my $smooth = cf::face::find $info->{smooth}) {
1820	*CFG = YAML::Syck::Load <$fh>;	3510	cf::face::set_smooth $idx, $smooth;
		3511	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3512	} else {
		3513	error "smooth face '$info->{smooth}' not found for face '$face'";
		3514	}
		3515
		3516	cf::cede_to_tick;
		3517	}
		3518	}
		3519
		3520	{
		3521	my $anims = $facedata->{animinfo};
		3522
		3523	while (my ($anim, $info) = each %$anims) {
		3524	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3525	cf::cede_to_tick;
		3526	}
		3527
		3528	cf::anim::invalidate_all; # d'oh
		3529	}
		3530
		3531	{
		3532	my $res = $facedata->{resource};
		3533
		3534	while (my ($name, $info) = each %$res) {
		3535	if (defined $info->{type}) {
		3536	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3537
		3538	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3539	cf::face::set_type $idx, $info->{type};
		3540	} else {
		3541	$RESOURCE{$name} = $info; # unused
		3542	}
		3543
		3544	cf::cede_to_tick;
		3545	}
		3546	}
		3547
		3548	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3549
		3550	1
		3551	}
		3552
		3553	register_exticmd fx_want => sub {
		3554	my ($ns, $want) = @_;
		3555
		3556	while (my ($k, $v) = each %$want) {
		3557	$ns->fx_want ($k, $v);
		3558	}
		3559	};
		3560
		3561	sub load_resource_file($) {
		3562	my $guard = lock_acquire "load_resource_file";
		3563
		3564	my $status = load_resource_file_ $_[0];
		3565	get_slot 0.1, 100;
		3566	cf::arch::commit_load;
		3567
		3568	$status
		3569	}
		3570
		3571	sub reload_regions {
		3572	# HACK to clear player env face cache, we need some signal framework
		3573	# for this (global event?)
		3574	%ext::player_env::MUSIC_FACE_CACHE = ();
		3575
		3576	load_resource_file "$MAPDIR/regions"
		3577	or die "unable to load regions file\n";
		3578
		3579	for (cf::region::list) {
		3580	$_->{match} = qr/$_->{match}/
		3581	if exists $_->{match};
		3582	}
		3583	}
		3584
		3585	sub reload_facedata {
		3586	load_facedata "$DATADIR/facedata"
		3587	or die "unable to load facedata\n";
		3588	}
		3589
		3590	sub reload_archetypes {
		3591	load_resource_file "$DATADIR/archetypes"
		3592	or die "unable to load archetypes\n";
		3593	}
		3594
		3595	sub reload_treasures {
		3596	load_resource_file "$DATADIR/treasures"
		3597	or die "unable to load treasurelists\n";
		3598	}
		3599
		3600	sub reload_sound {
		3601	trace "loading sound config from $DATADIR/sound\n";
		3602
		3603	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3604
		3605	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3606	my $sound = $soundconf->{compat}[$_]
		3607	or next;
		3608
		3609	my $face = cf::face::find "sound/$sound->[1]";
		3610	cf::sound::set $sound->[0] => $face;
		3611	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3612	}
		3613
		3614	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3615	my $face = cf::face::find "sound/$v";
		3616	cf::sound::set $k => $face;
		3617	}
		3618	}
		3619
		3620	sub reload_resources {
		3621	trace "reloading resource files...\n";
		3622
		3623	reload_exp_table;
		3624	reload_materials;
		3625	reload_facedata;
		3626	reload_sound;
		3627	reload_archetypes;
		3628	reload_regions;
		3629	reload_treasures;
		3630
		3631	trace "finished reloading resource files\n";
		3632	}
		3633
		3634	sub reload_config {
		3635	trace "reloading config file...\n";
		3636
		3637	my $config = load_file "$CONFDIR/config";
		3638	utf8::decode $config;
		3639	*CFG = decode_yaml $config;
		3640
		3641	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3642
		3643	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3644	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3645
		3646	if (exists $CFG{mlockall}) {
		3647	eval {
		3648	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3649	and die "WARNING: m(un)lockall failed: $!\n";
		3650	};
		3651	warn $@ if $@;
		3652	}
		3653	}
		3654
		3655	sub pidfile() {
		3656	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3657	or die "$PIDFILE: $!";
		3658	flock $fh, &Fcntl::LOCK_EX
		3659	or die "$PIDFILE: flock: $!";
		3660	$fh
		3661	}
		3662
		3663	# make sure only one server instance is running at any one time
		3664	sub atomic {
		3665	my $fh = pidfile;
		3666
		3667	my $pid = <$fh>;
		3668	kill 9, $pid if $pid > 0;
		3669
		3670	seek $fh, 0, 0;
		3671	print $fh $$;
		3672	}
		3673
		3674	sub main_loop {
		3675	trace "EV::loop starting\n";
		3676	if (1) {
		3677	EV::loop;
		3678	}
		3679	trace "EV::loop returned\n";
		3680	goto &main_loop unless $REALLY_UNLOOP;
1821	}	3681	}
1822		3682
1823	sub main {	3683	sub main {
		3684	cf::init_globals; # initialise logging
		3685
		3686	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3687	LOG llevInfo, "Copyright (C) 2005-2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3688	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3689	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3690
		3691	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3692
1824	# we must not ever block the main coroutine	3693	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	3694	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3695	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	3696	(async {
1828	Event::one_event;	3697	$Coro::current->{desc} = "IDLE BUG HANDLER";
1829	})->();	3698	EV::loop EV::LOOP_ONESHOT;
		3699	})->prio (Coro::PRIO_MAX);
1830	};	3700	};
1831		3701
1832	cfg_load;	3702	evthread_start IO::AIO::poll_fileno;
1833	db_load;	3703
		3704	cf::sync_job {
		3705	cf::incloader::init ();
		3706
		3707	cf::init_anim;
		3708	cf::init_attackmess;
		3709	cf::init_dynamic;
		3710
		3711	cf::load_settings;
		3712
		3713	reload_resources;
		3714	reload_config;
		3715	db_init;
		3716
		3717	cf::init_uuid;
		3718	cf::init_signals;
		3719	cf::init_skills;
		3720
		3721	cf::init_beforeplay;
		3722
		3723	atomic;
		3724
1834	load_extensions;	3725	load_extensions;
1835	Event::loop;	3726
		3727	utime time, time, $RUNTIMEFILE;
		3728
		3729	# no (long-running) fork's whatsoever before this point(!)
		3730	use POSIX ();
		3731	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3732
		3733	cf::_post_init 0;
		3734	};
		3735
		3736	cf::object::thawer::errors_are_fatal 0;
		3737	info "parse errors in files are no longer fatal from this point on.\n";
		3738
		3739	my $free_main; $free_main = EV::idle sub {
		3740	undef $free_main;
		3741	undef &main; # free gobs of memory :)
		3742	};
		3743
		3744	goto &main_loop;
1836	}	3745	}
1837		3746
1838	#############################################################################	3747	#############################################################################
1839	# initialisation	3748	# initialisation and cleanup
1840		3749
		3750	# install some emergency cleanup handlers
		3751	BEGIN {
		3752	our %SIGWATCHER = ();
		3753	for my $signal (qw(INT HUP TERM)) {
		3754	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3755	cf::cleanup "SIG$signal";
		3756	};
		3757	}
		3758	}
		3759
		3760	sub write_runtime_sync {
		3761	my $t0 = AE::time;
		3762
		3763	# first touch the runtime file to show we are still running:
		3764	# the fsync below can take a very very long time.
		3765
		3766	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3767
		3768	my $guard = cf::lock_acquire "write_runtime";
		3769
		3770	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3771	or return;
		3772
		3773	my $value = $cf::RUNTIME + 90 + 10;
		3774	# 10 is the runtime save interval, for a monotonic clock
		3775	# 60 allows for the watchdog to kill the server.
		3776
		3777	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3778	and return;
		3779
		3780	# always fsync - this file is important
		3781	aio_fsync $fh
		3782	and return;
		3783
		3784	# touch it again to show we are up-to-date
		3785	aio_utime $fh, undef, undef;
		3786
		3787	close $fh
		3788	or return;
		3789
		3790	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3791	and return;
		3792
		3793	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3794
		3795	1
		3796	}
		3797
		3798	our $uuid_lock;
		3799	our $uuid_skip;
		3800
		3801	sub write_uuid_sync($) {
		3802	$uuid_skip ||= $_[0];
		3803
		3804	return if $uuid_lock;
		3805	local $uuid_lock = 1;
		3806
		3807	my $uuid = "$LOCALDIR/uuid";
		3808
		3809	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3810	or return;
		3811
		3812	my $value = uuid_seq uuid_cur;
		3813
		3814	unless ($value) {
		3815	info "cowardly refusing to write zero uuid value!\n";
		3816	return;
		3817	}
		3818
		3819	my $value = uuid_str $value + $uuid_skip;
		3820	$uuid_skip = 0;
		3821
		3822	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3823	and return;
		3824
		3825	# always fsync - this file is important
		3826	aio_fsync $fh
		3827	and return;
		3828
		3829	close $fh
		3830	or return;
		3831
		3832	aio_rename "$uuid~", $uuid
		3833	and return;
		3834
		3835	trace "uuid file written ($value).\n";
		3836
		3837	1
		3838
		3839	}
		3840
		3841	sub write_uuid($$) {
		3842	my ($skip, $sync) = @_;
		3843
		3844	$sync ? write_uuid_sync $skip
		3845	: async { write_uuid_sync $skip };
		3846	}
		3847
		3848	sub emergency_save() {
		3849	my $freeze_guard = cf::freeze_mainloop;
		3850
		3851	info "emergency_perl_save: enter\n";
		3852
		3853	# this is a trade-off: we want to be very quick here, so
		3854	# save all maps without fsync, and later call a global sync
		3855	# (which in turn might be very very slow)
		3856	local $USE_FSYNC = 0;
		3857
		3858	cf::sync_job {
		3859	cf::write_runtime_sync; # external watchdog should not bark
		3860
		3861	# use a peculiar iteration method to avoid tripping on perl
		3862	# refcount bugs in for. also avoids problems with players
		3863	# and maps saved/destroyed asynchronously.
		3864	info "emergency_perl_save: begin player save\n";
		3865	for my $login (keys %cf::PLAYER) {
		3866	my $pl = $cf::PLAYER{$login} or next;
		3867	$pl->valid or next;
		3868	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3869	$pl->save;
		3870	}
		3871	info "emergency_perl_save: end player save\n";
		3872
		3873	cf::write_runtime_sync; # external watchdog should not bark
		3874
		3875	info "emergency_perl_save: begin map save\n";
		3876	for my $path (keys %cf::MAP) {
		3877	my $map = $cf::MAP{$path} or next;
		3878	$map->valid or next;
		3879	$map->save;
		3880	}
		3881	info "emergency_perl_save: end map save\n";
		3882
		3883	cf::write_runtime_sync; # external watchdog should not bark
		3884
		3885	info "emergency_perl_save: begin database checkpoint\n";
		3886	BDB::db_env_txn_checkpoint $DB_ENV;
		3887	info "emergency_perl_save: end database checkpoint\n";
		3888
		3889	info "emergency_perl_save: begin write uuid\n";
		3890	write_uuid_sync 1;
		3891	info "emergency_perl_save: end write uuid\n";
		3892
		3893	cf::write_runtime_sync; # external watchdog should not bark
		3894
		3895	trace "emergency_perl_save: syncing database to disk";
		3896	BDB::db_env_txn_checkpoint $DB_ENV;
		3897
		3898	info "emergency_perl_save: starting sync\n";
		3899	IO::AIO::aio_sync sub {
		3900	info "emergency_perl_save: finished sync\n";
		3901	};
		3902
		3903	cf::write_runtime_sync; # external watchdog should not bark
		3904
		3905	trace "emergency_perl_save: flushing outstanding aio requests";
		3906	while (IO::AIO::nreqs || BDB::nreqs) {
		3907	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3908	}
		3909
		3910	cf::write_runtime_sync; # external watchdog should not bark
		3911	};
		3912
		3913	info "emergency_perl_save: leave\n";
		3914	}
		3915
		3916	sub post_cleanup {
		3917	my ($make_core) = @_;
		3918
		3919	IO::AIO::flush;
		3920
		3921	error Carp::longmess "post_cleanup backtrace"
		3922	if $make_core;
		3923
		3924	my $fh = pidfile;
		3925	unlink $PIDFILE if <$fh> == $$;
		3926	}
		3927
		3928	# a safer delete_package, copied from Symbol
		3929	sub clear_package($) {
		3930	my $pkg = shift;
		3931
		3932	# expand to full symbol table name if needed
		3933	unless ($pkg =~ /^main::.*::$/) {
		3934	$pkg = "main$pkg" if $pkg =~ /^::/;
		3935	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3936	$pkg .= '::' unless $pkg =~ /::$/;
		3937	}
		3938
		3939	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3940	my $stem_symtab = *{$stem}{HASH};
		3941
		3942	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3943	or return;
		3944
		3945	# clear all symbols
		3946	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3947	for my $name (keys %$leaf_symtab) {
		3948	_gv_clear *{"$pkg$name"};
		3949	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3950	}
		3951	}
		3952
1841	sub reload() {	3953	sub do_reload_perl() {
1842	# can/must only be called in main	3954	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	3955	unless (in_main) {
1844	warn "can only reload from main coroutine\n";	3956	error "can only reload from main coroutine";
1845	return;	3957	return;
1846	}	3958	}
1847		3959
1848	warn "reloading...";	3960	return if $RELOAD++;
1849		3961
1850	local $FREEZE = 1;	3962	my $t1 = AE::time;
		3963
		3964	while ($RELOAD) {
		3965	cf::get_slot 0.1, -1, "reload_perl";
		3966	info "perl_reload: reloading...";
		3967
		3968	trace "perl_reload: entering sync_job";
		3969
		3970	cf::sync_job {
1851	cf::emergency_save;	3971	#cf::emergency_save;
1852		3972
1853	eval {	3973	trace "perl_reload: cancelling all extension coros";
1854	# if anything goes wrong in here, we should simply crash as we already saved
1855
1856	# cancel all watchers
1857	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}
1860
1861	# cancel all extension coros
1862	$_->cancel for values %EXT_CORO;	3974	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	3975	%EXT_CORO = ();
1864		3976
1865	# unload all extensions	3977	trace "perl_reload: removing commands";
1866	for (@exts) {	3978	%COMMAND = ();
1867	warn "unloading <$_>";
1868	unload_extension $_;
1869	}
1870		3979
1871	# unload all modules loaded from $LIBDIR	3980	trace "perl_reload: removing ext/exti commands";
1872	while (my ($k, $v) = each %INC) {	3981	%EXTCMD = ();
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3982	%EXTICMD = ();
1874		3983
1875	warn "removing <$k>";	3984	trace "perl_reload: unloading/nuking all extensions";
1876	delete $INC{$k};	3985	for my $pkg (@EXTS) {
		3986	trace "... unloading $pkg";
1877		3987
1878	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;
1880
1881	if (my $cb = $k->can ("unload_module")) {	3988	if (my $cb = $pkg->can ("unload")) {
		3989	eval {
1882	$cb->();	3990	$cb->($pkg);
		3991	1
		3992	} or error "$pkg unloaded, but with errors: $@";
		3993	}
		3994
		3995	trace "... clearing $pkg";
		3996	clear_package $pkg;
1883	}	3997	}
1884		3998
1885	Symbol::delete_package $k;	3999	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4000	while (my ($k, $v) = each %INC) {
		4001	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4002
		4003	trace "... unloading $k";
		4004	delete $INC{$k};
		4005
		4006	$k =~ s/\.pm$//;
		4007	$k =~ s/\//::/g;
		4008
		4009	if (my $cb = $k->can ("unload_module")) {
		4010	$cb->();
		4011	}
		4012
		4013	clear_package $k;
1886	}	4014	}
1887		4015
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	4016	trace "perl_reload: getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	4017	clear_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4018	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		4019
1896	# remove register_script_function callbacks	4020	trace "perl_reload: unloading cf.pm \"a bit\"";
1897	# TODO
1898
1899	# unload cf.pm "a bit"
1900	delete $INC{"cf.pm"};	4021	delete $INC{"cf.pm"};
		4022	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1901		4023
1902	# don't, removes xs symbols, too,	4024	# don't, removes xs symbols, too,
1903	# and global variables created in xs	4025	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	4026	#clear_package __PACKAGE__;
1905		4027
1906	# reload cf.pm	4028	info "perl_reload: unload completed, starting to reload now";
1907	warn "reloading cf.pm";	4029
		4030	trace "perl_reload: reloading cf.pm";
1908	require cf;	4031	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4032	cf::_connect_to_perl_1;
1910		4033
1911	# load config and database again	4034	trace "perl_reload: loading config and database again";
1912	cf::cfg_load;	4035	cf::reload_config;
1913	cf::db_load;
1914		4036
1915	# load extensions	4037	trace "perl_reload: loading extensions";
1916	warn "load extensions";
1917	cf::load_extensions;	4038	cf::load_extensions;
1918		4039
1919	# reattach attachments to objects	4040	if ($REATTACH_ON_RELOAD) {
1920	warn "reattach";	4041	trace "perl_reload: reattaching attachments to objects/players";
1921	_global_reattach;	4042	_global_reattach; # objects, sockets
		4043	trace "perl_reload: reattaching attachments to maps";
		4044	reattach $_ for values %MAP;
		4045	trace "perl_reload: reattaching attachments to players";
		4046	reattach $_ for values %PLAYER;
		4047	}
		4048
		4049	cf::_post_init 1;
		4050
		4051	trace "perl_reload: leaving sync_job";
		4052
		4053	1
		4054	} or do {
		4055	error $@;
		4056	cf::cleanup "perl_reload: error, exiting.";
		4057	};
		4058
		4059	--$RELOAD;
		4060	}
		4061
		4062	$t1 = AE::time - $t1;
		4063	info "perl_reload: completed in ${t1}s\n";
		4064	};
		4065
		4066	our $RELOAD_WATCHER; # used only during reload
		4067
		4068	sub reload_perl() {
		4069	# doing reload synchronously and two reloads happen back-to-back,
		4070	# coro crashes during coro_state_free->destroy here.
		4071
		4072	$RELOAD_WATCHER ||= cf::async {
		4073	Coro::AIO::aio_wait cache_extensions;
		4074
		4075	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4076	do_reload_perl;
		4077	undef $RELOAD_WATCHER;
		4078	};
1922	};	4079	};
1923
1924	if ($@) {
1925	warn $@;
1926	warn "error while reloading, exiting.";
1927	exit 1;
1928	}
1929
1930	warn "reloaded successfully";
1931	};
1932
1933	#############################################################################
1934
1935	unless ($LINK_MAP) {
1936	$LINK_MAP = cf::map::new;
1937
1938	$LINK_MAP->width (41);
1939	$LINK_MAP->height (41);
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,
1948	cb => sub {
1949	$_[0]->w->cancel;
1950
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});
1969
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}	4080	}
1975
1976	register "<global>", __PACKAGE__;
1977		4081
1978	register_command "reload" => sub {	4082	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	4083	my ($who, $arg) = @_;
1980		4084
1981	if ($who->flag (FLAG_WIZ)) {	4085	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");
1983	reload;
1984	$who->message ("end of reload.");	4086	$who->message ("reloading server.");
		4087	async {
		4088	$Coro::current->{desc} = "perl_reload";
		4089	reload_perl;
		4090	};
1985	}	4091	}
1986	};	4092	};
1987		4093
1988	unshift @INC, $LIBDIR;	4094	#############################################################################
1989		4095
1990	$TICK_WATCHER = Event->timer (	4096	my $bug_warning = 0;
1991	reentrant => 0,	4097
1992	prio => 0,	4098	our @WAIT_FOR_TICK;
1993	at => $NEXT_TICK || $TICK,	4099	our @WAIT_FOR_TICK_BEGIN;
1994	data => WF_AUTOCANCEL,	4100
1995	cb => sub {	4101	sub wait_for_tick() {
1996	unless ($FREEZE) {	4102	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4103
		4104	my $signal = new Coro::Signal;
		4105	push @WAIT_FOR_TICK, $signal;
		4106	$signal->wait;
		4107	}
		4108
		4109	sub wait_for_tick_begin() {
		4110	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4111
		4112	my $signal = new Coro::Signal;
		4113	push @WAIT_FOR_TICK_BEGIN, $signal;
		4114	$signal->wait;
		4115	}
		4116
		4117	sub tick {
		4118	if ($Coro::current != $Coro::main) {
		4119	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4120	unless ++$bug_warning > 10;
		4121	return;
		4122	}
		4123
1997	cf::server_tick; # one server iteration	4124	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;
1999	}
2000		4125
2001	$NEXT_TICK += $TICK;	4126	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2002		4127
2003	# if we are delayed by four ticks or more, skip them all	4128	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4129	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2005		4130	Coro::async_pool {
2006	$TICK_WATCHER->at ($NEXT_TICK);	4131	$Coro::current->{desc} = "runtime saver";
2007	$TICK_WATCHER->start;
2008	},
2009	);
2010
2011	IO::AIO::max_poll_time $TICK * 0.2;
2012
2013	Event->io (
2014	fd => IO::AIO::poll_fileno,
2015	poll => 'r',
2016	prio => 5,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,
2023	after => 0,
2024	interval => 10,
2025	cb => sub {
2026	(Coro::unblock_sub {
2027	write_runtime	4132	write_runtime_sync
2028	or warn "ERROR: unable to write runtime file: $!";	4133	or error "ERROR: unable to write runtime file: $!";
2029	})->();	4134	};
2030	},	4135	}
2031	);	4136
		4137	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4138	$sig->send;
		4139	}
		4140	while (my $sig = shift @WAIT_FOR_TICK) {
		4141	$sig->send;
		4142	}
		4143
		4144	$LOAD = ($NOW - $TICK_START) / $TICK;
		4145	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4146
		4147	if (0) {
		4148	if ($NEXT_TICK) {
		4149	my $jitter = $TICK_START - $NEXT_TICK;
		4150	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4151	debug "jitter $JITTER\n";#d#
		4152	}
		4153	}
		4154	}
		4155
		4156	{
		4157	# configure BDB
		4158
		4159	BDB::min_parallel 16;
		4160	BDB::max_poll_reqs $TICK * 0.1;
		4161	$AnyEvent::BDB::WATCHER->priority (1);
		4162
		4163	unless ($DB_ENV) {
		4164	$DB_ENV = BDB::db_env_create;
		4165	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4166	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4167	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4168	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4169	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4170
		4171	cf::sync_job {
		4172	eval {
		4173	BDB::db_env_open
		4174	$DB_ENV,
		4175	$BDBDIR,
		4176	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4177	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4178	0666;
		4179
		4180	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4181	};
		4182
		4183	cf::cleanup "db_env_open(db): $@" if $@;
		4184	};
		4185	}
		4186
		4187	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4188	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4189	};
		4190	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4191	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4192	};
		4193	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4194	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4195	};
		4196	}
		4197
		4198	{
		4199	# configure IO::AIO
		4200
		4201	IO::AIO::min_parallel 8;
		4202	IO::AIO::max_poll_time $TICK * 0.1;
		4203	undef $AnyEvent::AIO::WATCHER;
		4204	}
		4205
		4206	our $_log_backtrace;
		4207	our $_log_backtrace_last;
		4208
		4209	sub _log_backtrace {
		4210	my ($msg, @addr) = @_;
		4211
		4212	$msg =~ s/\n$//;
		4213
		4214	if ($_log_backtrace_last eq $msg) {
		4215	LOG llevInfo, "[ABT] $msg\n";
		4216	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4217	# limit the # of concurrent backtraces
		4218	} elsif ($_log_backtrace < 2) {
		4219	$_log_backtrace_last = $msg;
		4220	++$_log_backtrace;
		4221	my $perl_bt = Carp::longmess $msg;
		4222	async {
		4223	$Coro::current->{desc} = "abt $msg";
		4224
		4225	my @bt = fork_call {
		4226	@addr = map { sprintf "%x", $_ } @addr;
		4227	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4228	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4229	or die "addr2line: $!";
		4230
		4231	my @funcs;
		4232	my @res = <$fh>;
		4233	chomp for @res;
		4234	while (@res) {
		4235	my ($func, $line) = splice @res, 0, 2, ();
		4236	push @funcs, "[$func] $line";
		4237	}
		4238
		4239	@funcs
		4240	};
		4241
		4242	LOG llevInfo, "[ABT] $perl_bt\n";
		4243	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4244	LOG llevInfo, "[ABT] $_\n" for @bt;
		4245	--$_log_backtrace;
		4246	};
		4247	} else {
		4248	LOG llevInfo, "[ABT] $msg\n";
		4249	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4250	}
		4251	}
		4252
		4253	# load additional modules
		4254	require "cf/$_.pm" for @EXTRA_MODULES;
		4255	cf::_connect_to_perl_2;
		4256
		4257	END { cf::emergency_save }
2032		4258
2033	1	4259	1
2034		4260

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