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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.511 by root, Wed Apr 7 18:35:56 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Storable;	31	use Socket;
		32	use EV;
9	use Opcode;	33	use Opcode;
10	use Safe;	34	use Safe;
11	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
12		38
		39	use Guard ();
13	use Coro 3.3;	40	use Coro ();
		41	use Coro::State;
		42	use Coro::Handle;
		43	use Coro::EV;
14	use Coro::Event;	44	use Coro::AnyEvent;
15	use Coro::Timer;	45	use Coro::Timer;
16	use Coro::Signal;	46	use Coro::Signal;
17	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
18	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
		52	use Coro::Storable;
		53	use Coro::Util ();
19		54
20	use Digest::MD5;	55	use JSON::XS 2.01 ();
		56	use BDB ();
		57	use Data::Dumper;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
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	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	115	our $NEXT_TICK;
45	our $NOW;	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
46		124
47	our %CFG;	125	our %CFG;
48		126
49	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
51		130
52	our %MAP; # all maps	131	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	132	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	133	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	134
56	our %EXT_CORO;	135	# used to convert map paths into valid unix filenames by replacing / by ∕
		136	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		137
		138	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		139	our $LOADAVG; # same thing, but with alpha-smoothing
		140	our $JITTER; # average jitter
		141	our $TICK_START; # for load detecting purposes
		142
		143	our @POST_INIT;
		144
		145	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		146	our $REALLY_UNLOOP; # never set to true, please :)
57		147
58	binmode STDOUT;	148	binmode STDOUT;
59	binmode STDERR;	149	binmode STDERR;
60		150
61	# read virtual server time, if available	151	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
66	}	156	}
67		157
68	mkdir cf::localdir;	158	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		159
74	# a special map that is always available	160	mkdir $_
75	our $LINK_MAP;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		162
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	163	our $EMERGENCY_POSITION;
		164
		165	sub cf::map::normalise;
		166
		167	#############################################################################
		168
		169	%REFLECT = ();
		170	for (@REFLECT) {
		171	my $reflect = JSON::XS::decode_json $_;
		172	$REFLECT{$reflect->{class}} = $reflect;
		173	}
		174
		175	# this is decidedly evil
		176	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
78		177
79	#############################################################################	178	#############################################################################
80		179
81	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
82		181
…		…
89	=item $cf::RUNTIME	188	=item $cf::RUNTIME
90		189
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	190	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	191	every server tick.
93		192
94	=item $cf::LIBDIR	193	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		194	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		195	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		196
96	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	198	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		199	unique-items directory, player file directory, random maps directory and
		200	database environment.
98		201
99	=item $cf::NOW	202	=item $cf::NOW
100		203
101	The time of the last (current) server tick.	204	The time of the last (current) server tick.
102		205
103	=item $cf::TICK	206	=item $cf::TICK
104		207
105	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
106		209
		210	=item $cf::LOADAVG
		211
		212	The current CPU load on the server (alpha-smoothed), as a value between 0
		213	(none) and 1 (overloaded), indicating how much time is spent on processing
		214	objects per tick. Healthy values are < 0.5.
		215
		216	=item $cf::LOAD
		217
		218	The raw value load value from the last tick.
		219
107	=item %cf::CFG	220	=item %cf::CFG
108		221
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	223	from wherever your confdir points to.
111		224
		225	=item cf::wait_for_tick, cf::wait_for_tick_begin
		226
		227	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		228	returns directly I<after> the tick processing (and consequently, can only wake one process
		229	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		230
		231	=item @cf::INVOKE_RESULTS
		232
		233	This array contains the results of the last C<invoke ()> call. When
		234	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		235	that call.
		236
		237	=item %cf::REFLECT
		238
		239	Contains, for each (C++) class name, a hash reference with information
		240	about object members (methods, scalars, arrays and flags) and other
		241	metadata, which is useful for introspection.
		242
112	=back	243	=back
113		244
114	=cut	245	=cut
115		246
116	BEGIN {	247	$Coro::State::WARNHOOK = sub {
117	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	248	my $msg = join "", @_;
119	utf8::encode $msg;
120		249
121	$msg .= "\n"	250	$msg .= "\n"
122	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
123		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
124	LOG llevError, "cfperl: $msg";	255	LOG llevError, $msg;
125	};	256	};
126	}	257
		258	$Coro::State::DIEHOOK = sub {
		259	return unless $^S eq 0; # "eq", not "=="
		260
		261	warn Carp::longmess $_[0];
		262
		263	if ($Coro::current == $Coro::main) {#d#
		264	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		265	return;#d#
		266	}#d#
		267
		268	# kill coroutine otherwise
		269	Coro::terminate
		270	};
127		271
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	276	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		277	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	278	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		279
135	# we bless all objects into (empty) derived classes to force a method lookup	280	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	281	# within the Safe compartment.
137	for my $pkg (qw(	282	for my $pkg (qw(
138	cf::global cf::attachable	283	cf::global cf::attachable
139	cf::object cf::object::player	284	cf::object cf::object::player
140	cf::client cf::player	285	cf::client cf::player
141	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
142	cf::map cf::party cf::region	288	cf::party cf::region
143	)) {	289	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	291	}
147		292
148	$Event::DIED = sub {	293	$EV::DIED = sub {
149	warn "error in event callback: @_";	294	Carp::cluck "error in event callback: @_";
150	};	295	};
151		296
152	my %ext_pkg;	297	#############################################################################
153	my @exts;
154	my @hook;
155		298
156	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
157		300
158	=over 4	301	=over 4
159		302
160	=cut	303	=item dumpval $ref
161		304
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	305	=cut
163		306
		307	sub dumpval {
		308	eval {
		309	local $SIG{__DIE__};
		310	my $d;
		311	if (1) {
		312	$d = new Data::Dumper([$_[0]], ["*var"]);
		313	$d->Terse(1);
		314	$d->Indent(2);
		315	$d->Quotekeys(0);
		316	$d->Useqq(1);
		317	#$d->Bless(...);
		318	$d->Seen($_[1]) if @_ > 1;
		319	$d = $d->Dump();
		320	}
		321	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		322	$d
		323	} || "[unable to dump $_[0]: '$@']";
		324	}
		325
164	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
165		327
166	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
167		329
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
176		331
177	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
178		333
179	=cut	334	=cut
180		335
181	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	337
183	JSON::Syck::Dump $_[0]	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
		340
		341	=item cf::post_init { BLOCK }
		342
		343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		344	but I<before> the server starts ticking again.
		345
		346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
		348
		349	=cut
		350
		351	sub post_init(&) {
		352	push @POST_INIT, shift;
184	}	353	}
		354
		355	=item cf::lock_wait $string
		356
		357	Wait until the given lock is available. See cf::lock_acquire.
		358
		359	=item my $lock = cf::lock_acquire $string
		360
		361	Wait until the given lock is available and then acquires it and returns
		362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		363	for example when the coroutine gets canceled), the lock is automatically
		364	returned.
		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
		369	Lock names should begin with a unique identifier (for example, cf::map::find
		370	uses map_find and cf::map::load uses map_load).
		371
		372	=item $locked = cf::lock_active $string
		373
		374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
		379
		380	sub lock_wait($) {
		381	$LOCKS->wait ($_[0]);
		382	}
		383
		384	sub lock_acquire($) {
		385	$LOCKS->guard ($_[0])
		386	}
		387
		388	sub lock_active($) {
		389	$LOCKS->count ($_[0]) < 1
		390	}
		391
		392	sub freeze_mainloop {
		393	tick_inhibit_inc;
		394
		395	&Guard::guard (\&tick_inhibit_dec);
		396	}
		397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428	our $SLOT_DECAY = 0.9;
		429
		430	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		431	$SLOT_QUEUE = Coro::async {
		432	$Coro::current->desc ("timeslot manager");
		433
		434	my $signal = new Coro::Signal;
		435	my $busy;
		436
		437	while () {
		438	next_job:
		439
		440	my $avail = cf::till_tick;
		441
		442	for (0 .. $#SLOT_QUEUE) {
		443	if ($SLOT_QUEUE[$_][0] <= $avail) {
		444	$busy = 0;
		445	my $job = splice @SLOT_QUEUE, $_, 1, ();
		446	$job->[2]->send;
		447	Coro::cede;
		448	goto next_job;
		449	} else {
		450	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		451	}
		452	}
		453
		454	if (@SLOT_QUEUE) {
		455	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		456	push @cf::WAIT_FOR_TICK, $signal;
		457	$signal->wait;
		458	} else {
		459	$busy = 0;
		460	Coro::schedule;
		461	}
		462	}
		463	};
		464
		465	sub get_slot($;$$) {
		466	return if tick_inhibit || $Coro::current == $Coro::main;
		467
		468	my ($time, $pri, $name) = @_;
		469
		470	$time = clamp $time, 0.01, $TICK * .6;
		471
		472	my $sig = new Coro::Signal;
		473
		474	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		475	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		476	$SLOT_QUEUE->ready;
		477	$sig->wait;
		478	}
		479
		480	=item cf::async { BLOCK }
		481
		482	Currently the same as Coro::async_pool, meaning you cannot use
		483	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		484	thing you are allowed to do is call C<prio> on it.
		485
		486	=cut
		487
		488	BEGIN { *async = \&Coro::async_pool }
185		489
186	=item cf::sync_job { BLOCK }	490	=item cf::sync_job { BLOCK }
187		491
188	The design of crossfire+ requires that the main coro ($Coro::main) is	492	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	493	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	494	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		495	acceptable.
191		496
192	If it must be done, put the blocking parts into C<sync_job>. This will run	497	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	498	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	499	server will be frozen during this time, so the block should either finish
195	fast or be very important.	500	fast or be very important.
…		…
198		503
199	sub sync_job(&) {	504	sub sync_job(&) {
200	my ($job) = @_;	505	my ($job) = @_;
201		506
202	if ($Coro::current == $Coro::main) {	507	if ($Coro::current == $Coro::main) {
		508	my $time = EV::time;
		509
203	# this is the main coro, too bad, we have to block	510	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	511	# till the operation succeeds, freezing the server :/
205		512
206	# TODO: use suspend/resume instead	513	LOG llevError, Carp::longmess "sync job";#d#
207	# (but this is cancel-safe)	514
208	local $FREEZE = 1;	515	my $freeze_guard = freeze_mainloop;
209		516
210	my $busy = 1;	517	my $busy = 1;
211	my @res;	518	my @res;
212		519
213	(Coro::async {	520	(async {
		521	$Coro::current->desc ("sync job coro");
214	@res = eval { $job->() };	522	@res = eval { $job->() };
215	warn $@ if $@;	523	warn $@ if $@;
216	undef $busy;	524	undef $busy;
217	})->prio (Coro::PRIO_MAX);	525	})->prio (Coro::PRIO_MAX);
218		526
219	while ($busy) {	527	while ($busy) {
		528	if (Coro::nready) {
220	Coro::cede_notself;	529	Coro::cede_notself;
221	Event::one_event unless Coro::nready;	530	} else {
		531	EV::loop EV::LOOP_ONESHOT;
222	}	532	}
		533	}
		534
		535	my $time = EV::time - $time;
		536
		537	$TICK_START += $time; # do not account sync jobs to server load
223		538
224	wantarray ? @res : $res[0]	539	wantarray ? @res : $res[0]
225	} else {	540	} else {
226	# we are in another coroutine, how wonderful, everything just works	541	# we are in another coroutine, how wonderful, everything just works
227		542
228	$job->()	543	$job->()
229	}	544	}
230	}	545	}
231		546
232	=item $coro = cf::coro { BLOCK }	547	=item $coro = cf::async_ext { BLOCK }
233		548
234	Creates and returns a new coro. This coro is automcatially being canceled	549	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	550	extension calling this is being unloaded.
236		551
237	=cut	552	=cut
238		553
239	sub coro(&) {	554	sub async_ext(&) {
240	my $cb = shift;	555	my $cb = shift;
241		556
242	my $coro; $coro = async {	557	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		558
249	$coro->on_destroy (sub {	559	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	560	delete $EXT_CORO{$coro+0};
251	});	561	});
252	$EXT_CORO{$coro+0} = $coro;	562	$EXT_CORO{$coro+0} = $coro;
253		563
254	$coro	564	$coro
255	}	565	}
256		566
257	sub write_runtime {	567	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		568
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	569	Executes the given code block with the given arguments in a seperate
261	or return;	570	process, returning the results. Everything must be serialisable with
		571	Coro::Storable. May, of course, block. Note that the executed sub may
		572	never block itself or use any form of event handling.
262		573
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	574	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		575
267	aio_fsync $fh	576	sub fork_call(&@) {
268	and return;	577	my ($cb, @args) = @_;
269		578
270	close $fh	579	# we seemingly have to make a local copy of the whole thing,
271	or return;	580	# otherwise perl prematurely frees the stuff :/
		581	# TODO: investigate and fix (likely this will be rather laborious)
272		582
273	aio_rename "$runtime~", $runtime	583	my @res = Coro::Util::fork_eval {
274	and return;	584	reset_signals;
		585	&$cb
		586	}, @args;
275		587
		588	wantarray ? @res : $res[-1]
		589	}
		590
		591	=item $coin = coin_from_name $name
		592
		593	=cut
		594
		595	our %coin_alias = (
		596	"silver" => "silvercoin",
		597	"silvercoin" => "silvercoin",
		598	"silvercoins" => "silvercoin",
		599	"gold" => "goldcoin",
		600	"goldcoin" => "goldcoin",
		601	"goldcoins" => "goldcoin",
		602	"platinum" => "platinacoin",
		603	"platinumcoin" => "platinacoin",
		604	"platinumcoins" => "platinacoin",
		605	"platina" => "platinacoin",
		606	"platinacoin" => "platinacoin",
		607	"platinacoins" => "platinacoin",
		608	"royalty" => "royalty",
		609	"royalties" => "royalty",
		610	);
		611
		612	sub coin_from_name($) {
		613	$coin_alias{$_[0]}
		614	? cf::arch::find $coin_alias{$_[0]}
		615	: undef
		616	}
		617
		618	=item $value = cf::db_get $family => $key
		619
		620	Returns a single value from the environment database.
		621
		622	=item cf::db_put $family => $key => $value
		623
		624	Stores the given C<$value> in the family. It can currently store binary
		625	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		626
		627	=item $db = cf::db_table "name"
		628
		629	Create and/or open a new database table. The string must not be "db" and must be unique
		630	within each server.
		631
		632	=cut
		633
		634	sub db_table($) {
		635	my ($name) = @_;
		636	my $db = BDB::db_create $DB_ENV;
		637
		638	eval {
		639	$db->set_flags (BDB::CHKSUM);
		640
		641	utf8::encode $name;
		642	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		643	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		644	cf::cleanup "db_open(db): $!" if $!;
		645	};
		646	cf::cleanup "db_open(db): $@" if $@;
		647
		648	$db
		649	}
		650
		651	our $DB;
		652
		653	sub db_init {
		654	cf::sync_job {
		655	$DB ||= db_table "db";
		656	};
		657	}
		658
		659	sub db_get($$) {
		660	my $key = "$_[0]/$_[1]";
		661
		662	cf::sync_job {
		663	BDB::db_get $DB, undef, $key, my $data;
		664
		665	$! ? ()
		666	: $data
276	1	667	}
		668	}
		669
		670	sub db_put($$$) {
		671	BDB::dbreq_pri 4;
		672	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		673	}
		674
		675	=item cf::cache $id => [$paths...], $processversion => $process
		676
		677	Generic caching function that returns the value of the resource $id,
		678	caching and regenerating as required.
		679
		680	This function can block.
		681
		682	=cut
		683
		684	sub cache {
		685	my ($id, $src, $processversion, $process) = @_;
		686
		687	my $meta =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	aio_stat $_
		692	and Carp::croak "$_: $!";
		693
		694	($_, (stat _)[7,9])
		695	} @$src;
		696
		697	my $dbmeta = db_get cache => "$id/meta";
		698	if ($dbmeta ne $meta) {
		699	# changed, we may need to process
		700
		701	my @data;
		702	my $md5;
		703
		704	for (0 .. $#$src) {
		705	0 <= aio_load $src->[$_], $data[$_]
		706	or Carp::croak "$src->[$_]: $!";
		707	}
		708
		709	# if processing is expensive, check
		710	# checksum first
		711	if (1) {
		712	$md5 =
		713	join "\x00",
		714	$processversion,
		715	map {
		716	cf::cede_to_tick;
		717	($src->[$_], Digest::MD5::md5_hex $data[$_])
		718	} 0.. $#$src;
		719
		720
		721	my $dbmd5 = db_get cache => "$id/md5";
		722	if ($dbmd5 eq $md5) {
		723	db_put cache => "$id/meta", $meta;
		724
		725	return db_get cache => "$id/data";
		726	}
		727	}
		728
		729	my $t1 = Time::HiRes::time;
		730	my $data = $process->(\@data);
		731	my $t2 = Time::HiRes::time;
		732
		733	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		734
		735	db_put cache => "$id/data", $data;
		736	db_put cache => "$id/md5" , $md5;
		737	db_put cache => "$id/meta", $meta;
		738
		739	return $data;
		740	}
		741
		742	db_get cache => "$id/data"
		743	}
		744
		745	=item cf::datalog type => key => value, ...
		746
		747	Log a datalog packet of the given type with the given key-value pairs.
		748
		749	=cut
		750
		751	sub datalog($@) {
		752	my ($type, %kv) = @_;
		753	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	754	}
278		755
279	=back	756	=back
280		757
281	=cut	758	=cut
282		759
283	#############################################################################	760	#############################################################################
284		761
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392
393	#############################################################################
394
395	=head2 ATTACHABLE OBJECTS	762	=head2 ATTACHABLE OBJECTS
396		763
397	Many objects in crossfire are so-called attachable objects. That means you can	764	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	765	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	766	to it. All such attachable objects support the following methods.
400		767
401	In the following description, CLASS can be any of C<global>, C<object>	768	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	769	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	770	Deliantra).
404		771
405	=over 4	772	=over 4
406		773
407	=item $attachable->attach ($attachment, key => $value...)	774	=item $attachable->attach ($attachment, key => $value...)
408		775
…		…
452	=item cf::CLASS::attachment $name, ...	819	=item cf::CLASS::attachment $name, ...
453		820
454	Register an attachment by C<$name> through which attachable objects of the	821	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	822	given CLASS can refer to this attachment.
456		823
457	Some classes such as crossfire maps and objects can specify attachments	824	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	825	that are attached at load/instantiate time, thus the need for a name.
459		826
460	These calls expect any number of the following handler/hook descriptions:	827	These calls expect any number of the following handler/hook descriptions:
461		828
462	=over 4	829	=over 4
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	889	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	890	our @CB_MAP = ();
524		891
525	my %attachment;	892	my %attachment;
526		893
		894	sub cf::attachable::thawer_merge {
		895	# simply override everything except _meta
		896	local $_[0]{_meta};
		897	%{$_[0]} = %{$_[1]};
		898	}
		899
527	sub _attach_cb($$$$) {	900	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	901	my ($registry, $event, $prio, $cb) = @_;
529		902
530	use sort 'stable';	903	use sort 'stable';
531		904
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	938	$registry = $CB_TYPE[$object_type] ||= [];
566		939
567	} elsif ($type eq "subtype") {	940	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	941	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	942	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	943	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		944
572	} elsif ($type eq "package") {	945	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	946	my $pkg = shift @arg;
574		947
575	while (my ($name, $id) = each %cb_id) {	948	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	977	_attach $registry, $klass, @attach;
605	}	978	}
606		979
607	$obj->{$name} = \%arg;	980	$obj->{$name} = \%arg;
608	} else {	981	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	982	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	983	}
611		984
612	$obj->{_attachment}{$name} = undef;	985	$obj->{_attachment}{$name} = undef;
613	}	986	}
614		987
…		…
616	if (ref $_[0]) {	989	if (ref $_[0]) {
617	_object_attach @_;	990	_object_attach @_;
618	} else {	991	} else {
619	_attach shift->_attach_registry, @_;	992	_attach shift->_attach_registry, @_;
620	}	993	}
		994	_recalc_want;
621	};	995	};
622		996
623	# all those should be optimised	997	# all those should be optimised
624	sub cf::attachable::detach {	998	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	999	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	1002	delete $obj->{_attachment}{$name};
629	reattach ($obj);	1003	reattach ($obj);
630	} else {	1004	} else {
631	Carp::croak "cannot, currently, detach class attachments";	1005	Carp::croak "cannot, currently, detach class attachments";
632	}	1006	}
		1007	_recalc_want;
633	};	1008	};
634		1009
635	sub cf::attachable::attached {	1010	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1011	my ($obj, $name) = @_;
637		1012
…		…
652	";	1027	";
653	die if $@;	1028	die if $@;
654	}	1029	}
655		1030
656	our $override;	1031	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1032	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1033
659	sub override {	1034	sub override {
660	$override = 1;	1035	$override = 1;
661	@invoke_results = ();	1036	@INVOKE_RESULTS = (@_);
662	}	1037	}
663		1038
664	sub do_invoke {	1039	sub do_invoke {
665	my $event = shift;	1040	my $event = shift;
666	my $callbacks = shift;	1041	my $callbacks = shift;
667		1042
668	@invoke_results = ();	1043	@INVOKE_RESULTS = ();
669		1044
670	local $override;	1045	local $override;
671		1046
672	for (@$callbacks) {	1047	for (@$callbacks) {
673	eval { &{$_->[1]} };	1048	eval { &{$_->[1]} };
…		…
682	}	1057	}
683		1058
684	0	1059	0
685	}	1060	}
686		1061
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1062	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1063
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1064	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1065
691	Generate an object-specific event with the given arguments.	1066	Generate an object-specific event with the given arguments.
692		1067
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1068	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1069	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1070	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1071
697	=back	1072	=back
698		1073
699	=cut	1074	=cut
700		1075
701	#############################################################################	1076	#############################################################################
702	# object support	1077	# object support
		1078
		1079	sub _object_equal($$);
		1080	sub _object_equal($$) {
		1081	my ($a, $b) = @_;
		1082
		1083	return 0 unless (ref $a) eq (ref $b);
		1084
		1085	if ("HASH" eq ref $a) {
		1086	my @ka = keys %$a;
		1087	my @kb = keys %$b;
		1088
		1089	return 0 if @ka != @kb;
		1090
		1091	for (0 .. $#ka) {
		1092	return 0 unless $ka[$_] eq $kb[$_];
		1093	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1094	}
		1095
		1096	} elsif ("ARRAY" eq ref $a) {
		1097
		1098	return 0 if @$a != @$b;
		1099
		1100	for (0 .. $#$a) {
		1101	return 0 unless _object_equal $a->[$_], $b->[$_];
		1102	}
		1103
		1104	} elsif ($a ne $b) {
		1105	return 0;
		1106	}
		1107
		1108	1
		1109	}
		1110
		1111	our $SLOW_MERGES;#d#
		1112	sub _can_merge {
		1113	my ($ob1, $ob2) = @_;
		1114
		1115	++$SLOW_MERGES;#d#
		1116
		1117	# we do the slow way here
		1118	return _object_equal $ob1, $ob2
		1119	}
703		1120
704	sub reattach {	1121	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1122	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1123	my ($obj) = @_;
		1124
		1125	# no longer needed after getting rid of delete_package?
		1126	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		1127
708	my $registry = $obj->registry;	1128	my $registry = $obj->registry;
709		1129
710	@$registry = ();	1130	@$registry = ();
711		1131
…		…
726	cf::attachable->attach (	1146	cf::attachable->attach (
727	prio => -1000000,	1147	prio => -1000000,
728	on_instantiate => sub {	1148	on_instantiate => sub {
729	my ($obj, $data) = @_;	1149	my ($obj, $data) = @_;
730		1150
731	$data = from_json $data;	1151	$data = decode_json $data;
732		1152
733	for (@$data) {	1153	for (@$data) {
734	my ($name, $args) = @$_;	1154	my ($name, $args) = @$_;
735		1155
736	$obj->attach ($name, %{$args || {} });	1156	$obj->attach ($name, %{$args || {} });
…		…
752	sub object_freezer_save {	1172	sub object_freezer_save {
753	my ($filename, $rdata, $objs) = @_;	1173	my ($filename, $rdata, $objs) = @_;
754		1174
755	sync_job {	1175	sync_job {
756	if (length $$rdata) {	1176	if (length $$rdata) {
		1177	utf8::decode (my $decname = $filename);
757	warn sprintf "saving %s (%d,%d)\n",	1178	warn sprintf "saving %s (%d,%d)\n",
758	$filename, length $$rdata, scalar @$objs;	1179	$decname, length $$rdata, scalar @$objs;
759		1180
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1183	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1184	if ($cf::USE_FSYNC) {
		1185	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
763	aio_fsync $fh;	1186	aio_fsync $fh;
		1187	}
764	close $fh;	1188	aio_close $fh;
765		1189
766	if (@$objs) {	1190	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1191	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1192	aio_chmod $fh, SAVE_MODE;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	1193	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	1194	aio_write $fh, 0, (length $data), $data, 0;
		1195	if ($cf::USE_FSYNC) {
		1196	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
771	aio_fsync $fh;	1197	aio_fsync $fh;
		1198	}
772	close $fh;	1199	aio_close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	1200	aio_rename "$filename.pst~", "$filename.pst";
774	}	1201	}
775	} else {	1202	} else {
776	aio_unlink "$filename.pst";	1203	aio_unlink "$filename.pst";
777	}	1204	}
778		1205
779	aio_rename "$filename~", $filename;	1206	aio_rename "$filename~", $filename;
		1207
		1208	$filename =~ s%/[^/]+$%%;
		1209	aio_pathsync $filename if $cf::USE_FSYNC;
780	} else {	1210	} else {
781	warn "FATAL: $filename~: $!\n";	1211	warn "unable to save objects: $filename~: $!\n";
782	}	1212	}
783	} else {	1213	} else {
784	aio_unlink $filename;	1214	aio_unlink $filename;
785	aio_unlink "$filename.pst";	1215	aio_unlink "$filename.pst";
786	}	1216	}
787	}	1217	};
788	}	1218	}
789		1219
790	sub object_freezer_as_string {	1220	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1221	my ($rdata, $objs) = @_;
792		1222
…		…
804	or return;	1234	or return;
805		1235
806	unless (aio_stat "$filename.pst") {	1236	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1237	(aio_load "$filename.pst", $av) >= 0
808	or return;	1238	or return;
		1239
809	$av = eval { (Storable::thaw <$av>)->{objs} };	1240	my $st = eval { Coro::Storable::thaw $av };
		1241	$av = $st->{objs};
810	}	1242	}
811		1243
		1244	utf8::decode (my $decname = $filename);
		1245	warn sprintf "loading %s (%d,%d)\n",
		1246	$decname, length $data, scalar @{$av || []};
		1247
812	return ($data, $av);	1248	($data, $av)
813	}	1249	}
		1250
		1251	=head2 COMMAND CALLBACKS
		1252
		1253	=over 4
		1254
		1255	=cut
814		1256
815	#############################################################################	1257	#############################################################################
816	# command handling &c	1258	# command handling &c
817		1259
818	=item cf::register_command $name => \&callback($ob,$args);	1260	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1273	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1274	}
833		1275
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1276	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1277
836	Register a callbackf ro execution when the client sends an extcmd packet.	1278	Register a callback for execution when the client sends an (synchronous)
		1279	extcmd packet. Ext commands will be processed in the order they are
		1280	received by the server, like other user commands. The first argument is
		1281	the logged-in player. Ext commands can only be processed after a player
		1282	has logged in successfully.
837		1283
838	If the callback returns something, it is sent back as if reply was being	1284	If the callback returns something, it is sent back as if reply was being
839	called.	1285	called.
840		1286
		1287	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1288
		1289	Register a callback for execution when the client sends an (asynchronous)
		1290	exticmd packet. Exti commands are processed by the server as soon as they
		1291	are received, i.e. out of order w.r.t. other commands. The first argument
		1292	is a client socket. Exti commands can be received anytime, even before
		1293	log-in.
		1294
		1295	If the callback returns something, it is sent back as if reply was being
		1296	called.
		1297
841	=cut	1298	=cut
842		1299
843	sub register_extcmd {	1300	sub register_extcmd {
844	my ($name, $cb) = @_;	1301	my ($name, $cb) = @_;
845		1302
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1303	$EXTCMD{$name} = $cb;
850	}	1304	}
		1305
		1306	sub register_exticmd {
		1307	my ($name, $cb) = @_;
		1308
		1309	$EXTICMD{$name} = $cb;
		1310	}
		1311
		1312	use File::Glob ();
851		1313
852	cf::player->attach (	1314	cf::player->attach (
853	on_command => sub {	1315	on_unknown_command => sub {
854	my ($pl, $name, $params) = @_;	1316	my ($pl, $name, $params) = @_;
855		1317
856	my $cb = $COMMAND{$name}	1318	my $cb = $COMMAND{$name}
857	or return;	1319	or return;
858		1320
…		…
863	cf::override;	1325	cf::override;
864	},	1326	},
865	on_extcmd => sub {	1327	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1328	my ($pl, $buf) = @_;
867		1329
868	my $msg = eval { from_json $buf };	1330	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1331
870	if (ref $msg) {	1332	if (ref $msg) {
		1333	my ($type, $reply, @payload) =
		1334	"ARRAY" eq ref $msg
		1335	? @$msg
		1336	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1337
		1338	my @reply;
		1339
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1340	if (my $cb = $EXTCMD{$type}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1341	@reply = $cb->($pl, @payload);
873	$pl->ext_reply ($msg->{msgid}, %reply);
874	}
875	}	1342	}
		1343
		1344	$pl->ext_reply ($reply, @reply)
		1345	if $reply;
		1346
876	} else {	1347	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1348	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
878	}	1349	}
879		1350
880	cf::override;	1351	cf::override;
881	},	1352	},
882	);	1353	);
883		1354
884	sub register {	1355	# "readahead" all extensions
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1356	sub cache_extensions {
891	my ($path) = @_;	1357	my $grp = IO::AIO::aio_group;
892		1358
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1359	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
894	my $base = $1;	1360	for (grep /\.ext$/, @{$_[0]}) {
895	my $pkg = $1;	1361	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898
899	warn "loading '$path' into '$pkg'\n";
900
901	open my $fh, "<:utf8", $path
902	or die "$path: $!";
903
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }
933
934	# remove commands
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}	1362	}
943	}	1363	};
944		1364
945	# remove extcmds	1365	$grp
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	1366	}
959		1367
960	sub load_extensions {	1368	sub load_extensions {
		1369	cf::sync_job {
		1370	my %todo;
		1371
961	for my $ext (<$LIBDIR/*.ext>) {	1372	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1373	next unless -r $path;
963	eval {	1374
964	load_extension $ext;	1375	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1376	my $base = $1;
		1377	my $pkg = $1;
		1378	$pkg =~ s/[^[:word:]]/_/g;
		1379	$pkg = "ext::$pkg";
		1380
		1381	open my $fh, "<:utf8", $path
		1382	or die "$path: $!";
		1383
		1384	my $source = do { local $/; <$fh> };
		1385
		1386	my %ext = (
		1387	path => $path,
		1388	base => $base,
		1389	pkg => $pkg,
		1390	);
		1391
		1392	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1393	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1394
		1395	$ext{source} =
		1396	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1397	. "#line 1 \"$path\"\n{\n"
		1398	. $source
		1399	. "\n};\n1";
		1400
		1401	$todo{$base} = \%ext;
		1402	}
		1403
		1404	my $pass = 0;
		1405	my %done;
		1406	while (%todo) {
		1407	my $progress;
		1408
		1409	++$pass;
		1410
		1411	ext:
		1412	while (my ($k, $v) = each %todo) {
		1413	for (split /,\s*/, $v->{meta}{depends}) {
		1414	next ext
		1415	unless exists $done{$_};
		1416	}
		1417
		1418	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1419
		1420	my $active = eval $v->{source};
		1421
		1422	if (length $@) {
		1423	warn "$v->{path}: $@\n";
		1424
		1425	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1426	if exists $v->{meta}{mandatory};
		1427	} else {
		1428	$done{$k} = delete $todo{$k};
		1429	push @EXTS, $v->{pkg};
		1430	$progress = 1;
		1431
		1432	warn "$v->{base}: extension inactive.\n"
		1433	unless $active;
		1434	}
965	1	1435	}
966	} or warn "$ext not loaded: $@";	1436
		1437	unless ($progress) {
		1438	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1439
		1440	while (my ($k, $v) = each %todo) {
		1441	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1442	if exists $v->{meta}{mandatory};
		1443	}
		1444	}
		1445	}
967	}	1446	};
968	}	1447	}
969		1448
970	#############################################################################	1449	#############################################################################
971	# load/save/clean perl data associated with a map
972		1450
973	*cf::mapsupport::on_clean = sub {	1451	=back
		1452
		1453	=head2 CORE EXTENSIONS
		1454
		1455	Functions and methods that extend core deliantra objects.
		1456
		1457	=cut
		1458
		1459	package cf::player;
		1460
		1461	use Coro::AIO;
		1462
		1463	=head3 cf::player
		1464
		1465	=over 4
		1466
		1467	=item cf::player::num_playing
		1468
		1469	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1470
		1471	=cut
		1472
		1473	sub num_playing {
		1474	scalar grep
		1475	$_->ob->map
		1476	&& !$_->hidden
		1477	&& !$_->ob->flag (cf::FLAG_WIZ),
		1478	cf::player::list
		1479	}
		1480
		1481	=item cf::player::find $login
		1482
		1483	Returns the given player object, loading it if necessary (might block).
		1484
		1485	=cut
		1486
		1487	sub playerdir($) {
		1488	"$PLAYERDIR/"
		1489	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1490	}
		1491
		1492	sub path($) {
		1493	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1494
		1495	(playerdir $login) . "/playerdata"
		1496	}
		1497
		1498	sub find_active($) {
		1499	$cf::PLAYER{$_[0]}
		1500	and $cf::PLAYER{$_[0]}->active
		1501	and $cf::PLAYER{$_[0]}
		1502	}
		1503
		1504	sub exists($) {
974	my ($map) = @_;	1505	my ($login) = @_;
975		1506
976	my $path = $map->tmpname;	1507	$cf::PLAYER{$login}
977	defined $path or return;	1508	or !aio_stat path $login
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}	1509	}
990		1510
991	# TODO: compatibility cruft, remove when no longer needed	1511	sub find($) {
		1512	return $cf::PLAYER{$_[0]} || do {
		1513	my $login = $_[0];
		1514
		1515	my $guard = cf::lock_acquire "user_find:$login";
		1516
		1517	$cf::PLAYER{$_[0]} || do {
		1518	# rename old playerfiles to new ones
		1519	#TODO: remove when no longer required
		1520	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1521	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1522	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1523	aio_unlink +(playerdir $login) . "/$login.pl";
		1524
		1525	my $f = new_from_file cf::object::thawer path $login
		1526	or return;
		1527
		1528	my $pl = cf::player::load_pl $f
		1529	or return;
		1530
		1531	local $cf::PLAYER_LOADING{$login} = $pl;
		1532	$f->resolve_delayed_derefs;
		1533	$cf::PLAYER{$login} = $pl
		1534	}
		1535	}
		1536	}
		1537
992	cf::player->attach (	1538	cf::player->attach (
993	on_load => sub {	1539	on_load => sub {
994	my ($pl, $path) = @_;	1540	my ($pl, $path) = @_;
995		1541
996	for my $o (all_objects $pl->ob) {	1542	# restore slots saved in save, below
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1543	my $slots = delete $pl->{_slots};
998	$o->set_ob_key_value ("_perl_data");
999		1544
1000	%$o = %{ Storable::thaw pack "H*", $value };	1545	$pl->ob->current_weapon ($slots->[0]);
1001	}	1546	$pl->combat_ob ($slots->[1]);
1002	}	1547	$pl->ranged_ob ($slots->[2]);
1003	},	1548	},
1004	);	1549	);
1005		1550
1006	#############################################################################	1551	sub save($) {
		1552	my ($pl) = @_;
1007		1553
1008	=head2 CORE EXTENSIONS	1554	return if $pl->{deny_save};
1009		1555
1010	Functions and methods that extend core crossfire objects.	1556	my $path = path $pl;
		1557	my $guard = cf::lock_acquire "user_save:$path";
1011		1558
1012	=head3 cf::player	1559	return if $pl->{deny_save};
		1560
		1561	aio_mkdir playerdir $pl, 0770;
		1562	$pl->{last_save} = $cf::RUNTIME;
		1563
		1564	cf::get_slot 0.01;
		1565
		1566	# save slots, to be restored later
		1567	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1568
		1569	$pl->save_pl ($path);
		1570	cf::cede_to_tick;
		1571	}
		1572
		1573	sub new($) {
		1574	my ($login) = @_;
		1575
		1576	my $self = create;
		1577
		1578	$self->ob->name ($login);
		1579	$self->{deny_save} = 1;
		1580
		1581	$cf::PLAYER{$login} = $self;
		1582
		1583	$self
		1584	}
		1585
		1586	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1587
		1588	=cut
		1589
		1590	sub send_msg {
		1591	my $ns = shift->ns
		1592	or return;
		1593	$ns->send_msg (@_);
		1594	}
		1595
		1596	=item $pl->quit_character
		1597
		1598	Nukes the player without looking back. If logged in, the connection will
		1599	be destroyed. May block for a long time.
		1600
		1601	=cut
		1602
		1603	sub quit_character {
		1604	my ($pl) = @_;
		1605
		1606	my $name = $pl->ob->name;
		1607
		1608	$pl->{deny_save} = 1;
		1609	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1610
		1611	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1612	$pl->deactivate;
		1613	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1614	$pl->ob->check_score;
		1615	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1616	$pl->ns->destroy if $pl->ns;
		1617
		1618	my $path = playerdir $pl;
		1619	my $temp = "$path~$cf::RUNTIME~deleting~";
		1620	aio_rename $path, $temp;
		1621	delete $cf::PLAYER{$pl->ob->name};
		1622	$pl->destroy;
		1623
		1624	my $prefix = qr<^~\Q$name\E/>;
		1625
		1626	# nuke player maps
		1627	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1628
		1629	IO::AIO::aio_rmtree $temp;
		1630	}
		1631
		1632	=item $pl->kick
		1633
		1634	Kicks a player out of the game. This destroys the connection.
		1635
		1636	=cut
		1637
		1638	sub kick {
		1639	my ($pl, $kicker) = @_;
		1640
		1641	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1642	$pl->killer ("kicked");
		1643	$pl->ns->destroy;
		1644	}
		1645
		1646	=item cf::player::list_logins
		1647
		1648	Returns am arrayref of all valid playernames in the system, can take a
		1649	while and may block, so not sync_job-capable, ever.
		1650
		1651	=cut
		1652
		1653	sub list_logins {
		1654	my $dirs = aio_readdir $PLAYERDIR
		1655	or return [];
		1656
		1657	my @logins;
		1658
		1659	for my $login (@$dirs) {
		1660	my $path = path $login;
		1661
		1662	# a .pst is a dead give-away for a valid player
		1663	# if no pst file found, open and chekc for blocked users
		1664	if (aio_stat "$path.pst") {
		1665	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1666	aio_read $fh, 0, 512, my $buf, 0 or next;
		1667	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1668	}
		1669
		1670	utf8::decode $login;
		1671	push @logins, $login;
		1672	}
		1673
		1674	\@logins
		1675	}
		1676
		1677	=item $player->maps
		1678
		1679	Returns an arrayref of map paths that are private for this
		1680	player. May block.
		1681
		1682	=cut
		1683
		1684	sub maps($) {
		1685	my ($pl) = @_;
		1686
		1687	$pl = ref $pl ? $pl->ob->name : $pl;
		1688
		1689	my $files = aio_readdir playerdir $pl
		1690	or return;
		1691
		1692	my @paths;
		1693
		1694	for (@$files) {
		1695	utf8::decode $_;
		1696	next if /\.(?:pl|pst)$/;
		1697	next unless /^$PATH_SEP/o;
		1698
		1699	push @paths, cf::map::normalise "~$pl/$_";
		1700	}
		1701
		1702	\@paths
		1703	}
		1704
		1705	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1706
		1707	Expand deliantra pod fragments into protocol xml.
		1708
		1709	=item $player->ext_reply ($msgid, @msg)
		1710
		1711	Sends an ext reply to the player.
		1712
		1713	=cut
		1714
		1715	sub ext_reply($$@) {
		1716	my ($self, $id, @msg) = @_;
		1717
		1718	$self->ns->ext_reply ($id, @msg)
		1719	}
		1720
		1721	=item $player->ext_msg ($type, @msg)
		1722
		1723	Sends an ext event to the client.
		1724
		1725	=cut
		1726
		1727	sub ext_msg($$@) {
		1728	my ($self, $type, @msg) = @_;
		1729
		1730	$self->ns->ext_msg ($type, @msg);
		1731	}
		1732
		1733	=head3 cf::region
1013		1734
1014	=over 4	1735	=over 4
1015		1736
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut	1737	=cut
1021		1738
1022	sub cf::player::exists($) {	1739	package cf::region;
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026		1740
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1741	=item cf::region::find_by_path $path
1028		1742
1029	Sends an ext reply to the player.	1743	Tries to decuce the likely region for a map knowing only its path.
1030		1744
1031	=cut	1745	=cut
1032		1746
1033	sub cf::player::ext_reply($$$%) {	1747	sub find_by_path($) {
1034	my ($self, $id, %msg) = @_;	1748	my ($path) = @_;
1035		1749
1036	$msg{msgid} = $id;	1750	my ($match, $specificity);
1037		1751
1038	$self->send ("ext " . to_json \%msg);	1752	for my $region (list) {
		1753	if ($region->{match} && $path =~ $region->{match}) {
		1754	($match, $specificity) = ($region, $region->specificity)
		1755	if $region->specificity > $specificity;
		1756	}
		1757	}
		1758
		1759	$match
1039	}	1760	}
1040		1761
1041	=back	1762	=back
1042
1043		1763
1044	=head3 cf::map	1764	=head3 cf::map
1045		1765
1046	=over 4	1766	=over 4
1047		1767
…		…
1050	package cf::map;	1770	package cf::map;
1051		1771
1052	use Fcntl;	1772	use Fcntl;
1053	use Coro::AIO;	1773	use Coro::AIO;
1054		1774
		1775	use overload
		1776	'""' => \&as_string,
		1777	fallback => 1;
		1778
1055	our $MAX_RESET = 7200;	1779	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1780	our $DEFAULT_RESET = 3000;
1057		1781
1058	sub generate_random_map {	1782	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1783	my ($self, $rmp) = @_;
		1784
		1785	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1060		1786
1061	# mit "rum" bekleckern, nicht	1787	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1788	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1789	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1790	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1791	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1792	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1793	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1794	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1795	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1796	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1797	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1798	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1799	(cf::region::find $rmp->{region}), $rmp->{custom}
		1800	)
1075	}	1801	}
1076		1802
1077	# and all this just because we cannot iterate over	1803	=item cf::map->register ($regex, $prio)
1078	# all maps in C++...
1079	sub change_all_map_light {
1080	my ($change) = @_;
1081		1804
1082	$_->change_map_light ($change) for values %cf::MAP;	1805	Register a handler for the map path matching the given regex at the
1083	}	1806	givne priority (higher is better, built-in handlers have priority 0, the
		1807	default).
1084		1808
1085	sub try_load_header($) {	1809	=cut
		1810
		1811	sub register {
		1812	my (undef, $regex, $prio) = @_;
		1813	my $pkg = caller;
		1814
		1815	no strict;
		1816	push @{"$pkg\::ISA"}, __PACKAGE__;
		1817
		1818	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1819	}
		1820
		1821	# also paths starting with '/'
		1822	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1823
		1824	sub thawer_merge {
		1825	my ($self, $merge) = @_;
		1826
		1827	# we have to keep some variables in memory intact
		1828	local $self->{path};
		1829	local $self->{load_path};
		1830
		1831	$self->SUPER::thawer_merge ($merge);
		1832	}
		1833
		1834	sub normalise {
1086	my ($path) = @_;	1835	my ($path, $base) = @_;
		1836
		1837	$path = "$path"; # make sure its a string
		1838
		1839	$path =~ s/\.map$//;
		1840
		1841	# map plan:
		1842	#
		1843	# /! non-realised random map exit (special hack!)
		1844	# {... are special paths that are not being touched
		1845	# ?xxx/... are special absolute paths
		1846	# ?random/... random maps
		1847	# /... normal maps
		1848	# ~user/... per-player map of a specific user
		1849
		1850	$path =~ s/$PATH_SEP/\//go;
		1851
		1852	# treat it as relative path if it starts with
		1853	# something that looks reasonable
		1854	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1855	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1856
		1857	$base =~ s{[^/]+/?$}{};
		1858	$path = "$base/$path";
		1859	}
		1860
		1861	for ($path) {
		1862	redo if s{//}{/};
		1863	redo if s{/\.?/}{/};
		1864	redo if s{/[^/]+/\.\./}{/};
		1865	}
		1866
		1867	$path
		1868	}
		1869
		1870	sub new_from_path {
		1871	my (undef, $path, $base) = @_;
		1872
		1873	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1874
		1875	$path = normalise $path, $base;
		1876
		1877	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1878	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1879	my $self = bless cf::map::new, $pkg;
		1880	$self->{path} = $path; $self->path ($path);
		1881	$self->init; # pass $1 etc.
		1882	return $self;
		1883	}
		1884	}
		1885
		1886	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1887	()
		1888	}
		1889
		1890	sub init {
		1891	my ($self) = @_;
		1892
		1893	$self
		1894	}
		1895
		1896	sub as_string {
		1897	my ($self) = @_;
		1898
		1899	"$self->{path}"
		1900	}
		1901
		1902	# the displayed name, this is a one way mapping
		1903	sub visible_name {
		1904	&as_string
		1905	}
		1906
		1907	# the original (read-only) location
		1908	sub load_path {
		1909	my ($self) = @_;
		1910
		1911	"$MAPDIR/$self->{path}.map"
		1912	}
		1913
		1914	# the temporary/swap location
		1915	sub save_path {
		1916	my ($self) = @_;
		1917
		1918	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1919	"$TMPDIR/$path.map"
		1920	}
		1921
		1922	# the unique path, undef == no special unique path
		1923	sub uniq_path {
		1924	my ($self) = @_;
		1925
		1926	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1927	"$UNIQUEDIR/$path"
		1928	}
		1929
		1930	sub decay_objects {
		1931	my ($self) = @_;
		1932
		1933	return if $self->{deny_reset};
		1934
		1935	$self->do_decay_objects;
		1936	}
		1937
		1938	sub unlink_save {
		1939	my ($self) = @_;
		1940
		1941	utf8::encode (my $save = $self->save_path);
		1942	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1943	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1944	}
		1945
		1946	sub load_header_from($) {
		1947	my ($self, $path) = @_;
1087		1948
1088	utf8::encode $path;	1949	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1950	my $f = new_from_file cf::object::thawer $path
1090	or return;	1951	or return;
1091		1952
1092	my $map = cf::map::new	1953	$self->_load_header ($f)
1093	or return;	1954	or return;
1094		1955
1095	$map->load_header ($path)	1956	local $MAP_LOADING{$self->{path}} = $self;
		1957	$f->resolve_delayed_derefs;
		1958
		1959	$self->{load_path} = $path;
		1960
		1961	1
		1962	}
		1963
		1964	sub load_header_orig {
		1965	my ($self) = @_;
		1966
		1967	$self->load_header_from ($self->load_path)
		1968	}
		1969
		1970	sub load_header_temp {
		1971	my ($self) = @_;
		1972
		1973	$self->load_header_from ($self->save_path)
		1974	}
		1975
		1976	sub prepare_temp {
		1977	my ($self) = @_;
		1978
		1979	$self->last_access ((delete $self->{last_access})
		1980	|| $cf::RUNTIME); #d#
		1981	# safety
		1982	$self->{instantiate_time} = $cf::RUNTIME
		1983	if $self->{instantiate_time} > $cf::RUNTIME;
		1984	}
		1985
		1986	sub prepare_orig {
		1987	my ($self) = @_;
		1988
		1989	$self->{load_original} = 1;
		1990	$self->{instantiate_time} = $cf::RUNTIME;
		1991	$self->last_access ($cf::RUNTIME);
		1992	$self->instantiate;
		1993	}
		1994
		1995	sub load_header {
		1996	my ($self) = @_;
		1997
		1998	if ($self->load_header_temp) {
		1999	$self->prepare_temp;
		2000	} else {
		2001	$self->load_header_orig
1096	or return;	2002	or return;
		2003	$self->prepare_orig;
		2004	}
1097		2005
1098	$map->{load_path} = $path;	2006	$self->{deny_reset} = 1
		2007	if $self->no_reset;
1099		2008
1100	$map	2009	$self->default_region (cf::region::find_by_path $self->{path})
1101	}	2010	unless $self->default_region;
1102		2011
		2012	1
		2013	}
		2014
		2015	sub find;
1103	sub find_map {	2016	sub find {
1104	my ($path, $origin) = @_;	2017	my ($path, $origin) = @_;
1105		2018
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	2019	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		2020
		2021	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2022	my $guard2 = cf::lock_acquire "map_find:$path";
		2023
1111	$cf::MAP{$key} || do {	2024	$cf::MAP{$path} || do {
1112	# do it the slow way	2025	my $map = new_from_path cf::map $path
1113	my $map = try_load_header $path->save_path;
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	2026	or return;
1127		2027
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	2028	$map->{last_save} = $cf::RUNTIME;
1139		2029
1140	if ($map->should_reset) {	2030	$map->load_header
		2031	or return;
		2032
		2033	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2034	# doing this can freeze the server in a sync job, obviously
		2035	#$cf::WAIT_FOR_TICK->wait;
		2036	undef $guard2;
		2037	undef $guard1;
1141	$map->reset;	2038	$map->reset;
1142	$map = find_map $path;	2039	return find $path;
1143	}	2040	}
1144		2041
1145	$cf::MAP{$key} = $map	2042	$cf::MAP{$path} = $map
1146	}	2043	}
1147	}	2044	}
		2045
		2046	sub pre_load { }
		2047	#sub post_load { } # XS
1148		2048
1149	sub load {	2049	sub load {
1150	my ($self) = @_;	2050	my ($self) = @_;
1151		2051
1152	return if $self->in_memory != cf::MAP_SWAPPED;	2052	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		2053
1156	my $path = $self->{path};	2054	my $path = $self->{path};
1157		2055
		2056	{
		2057	my $guard = cf::lock_acquire "map_data:$path";
		2058
		2059	return unless $self->valid;
		2060	return unless $self->in_memory == cf::MAP_SWAPPED;
		2061
		2062	$self->in_memory (cf::MAP_LOADING);
		2063
1158	$self->alloc;	2064	$self->alloc;
1159	$self->load_objects ($self->{load_path}, 1)	2065
		2066	$self->pre_load;
		2067	cf::cede_to_tick;
		2068
		2069	my $f = new_from_file cf::object::thawer $self->{load_path};
		2070	$f->skip_block;
		2071	$self->_load_objects ($f)
1160	or return;	2072	or return;
1161		2073
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2074	$self->post_load_original
1163	if delete $self->{load_original};	2075	if delete $self->{load_original};
1164		2076
1165	if (my $uniq = $path->uniq_path) {	2077	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	2078	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	2079	unless (aio_stat $uniq) {
		2080	if (my $f = new_from_file cf::object::thawer $uniq) {
1168	$self->clear_unique_items;	2081	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	2082	$self->_load_objects ($f);
		2083	$f->resolve_delayed_derefs;
		2084	}
1170	}	2085	}
1171	}	2086	}
1172		2087
		2088	$f->resolve_delayed_derefs;
		2089
		2090	cf::cede_to_tick;
1173	# now do the right thing for maps	2091	# now do the right thing for maps
1174	$self->link_multipart_objects;	2092	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	2093	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	2094	unless $self->difficulty;
		2095	cf::cede_to_tick;
		2096
		2097	unless ($self->{deny_activate}) {
		2098	$self->decay_objects;
		2099	$self->fix_auto_apply;
		2100	$self->update_buttons;
		2101	cf::cede_to_tick;
1186	$self->activate;	2102	$self->activate;
1187	}	2103	}
1188		2104
		2105	$self->{last_save} = $cf::RUNTIME;
		2106	$self->last_access ($cf::RUNTIME);
		2107
1189	$self->in_memory (cf::MAP_IN_MEMORY);	2108	$self->in_memory (cf::MAP_ACTIVE);
1190	}	2109	}
1191		2110
1192	sub load_map_sync {	2111	$self->post_load;
		2112	}
		2113
		2114	# customize the map for a given player, i.e.
		2115	# return the _real_ map. used by e.g. per-player
		2116	# maps to change the path to ~playername/mappath
		2117	sub customise_for {
		2118	my ($self, $ob) = @_;
		2119
		2120	return find "~" . $ob->name . "/" . $self->{path}
		2121	if $self->per_player;
		2122
		2123	# return find "?party/" . $ob->name . "/" . $self->{path}
		2124	# if $self->per_party;
		2125
		2126	$self
		2127	}
		2128
		2129	# find and load all maps in the 3x3 area around a map
		2130	sub load_neighbours {
		2131	my ($map) = @_;
		2132
		2133	my @neigh; # diagonal neighbours
		2134
		2135	for (0 .. 3) {
		2136	my $neigh = $map->tile_path ($_)
		2137	or next;
		2138	$neigh = find $neigh, $map
		2139	or next;
		2140	$neigh->load;
		2141
		2142	push @neigh,
		2143	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2144	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2145	}
		2146
		2147	for (grep defined $_->[0], @neigh) {
		2148	my ($path, $origin) = @$_;
		2149	my $neigh = find $path, $origin
		2150	or next;
		2151	$neigh->load;
		2152	}
		2153	}
		2154
		2155	sub find_sync {
1193	my ($path, $origin) = @_;	2156	my ($path, $origin) = @_;
1194		2157
1195	#warn "load_map_sync<$path, $origin>\n";#d#	2158	cf::sync_job { find $path, $origin }
		2159	}
1196		2160
1197	cf::sync_job {	2161	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	2162	my ($map) = @_;
1199	or return;	2163
1200	$map->load;	2164	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1201	$map	2165	if $Coro::current == $Coro::main;
		2166
		2167	cf::sync_job { $map->load };
		2168	}
		2169
		2170	our %MAP_PREFETCH;
		2171	our $MAP_PREFETCHER = undef;
		2172
		2173	sub find_async {
		2174	my ($path, $origin, $load) = @_;
		2175
		2176	$path = normalise $path, $origin && $origin->{path};
		2177
		2178	if (my $map = $cf::MAP{$path}) {
		2179	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2180	}
		2181
		2182	$MAP_PREFETCH{$path} |= $load;
		2183
		2184	$MAP_PREFETCHER ||= cf::async {
		2185	$Coro::current->{desc} = "map prefetcher";
		2186
		2187	while (%MAP_PREFETCH) {
		2188	while (my ($k, $v) = each %MAP_PREFETCH) {
		2189	if (my $map = find $k) {
		2190	$map->load if $v;
		2191	}
		2192
		2193	delete $MAP_PREFETCH{$k};
		2194	}
		2195	}
		2196	undef $MAP_PREFETCHER;
1202	}	2197	};
		2198	$MAP_PREFETCHER->prio (6);
		2199
		2200	()
1203	}	2201	}
1204		2202
1205	sub save {	2203	sub save {
1206	my ($self) = @_;	2204	my ($self) = @_;
1207		2205
1208	my $save = $self->{path}->save_path; utf8::encode $save;	2206	my $lock = cf::lock_acquire "map_data:$self->{path}";
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		2207
1211	$self->{last_save} = $cf::RUNTIME;	2208	$self->{last_save} = $cf::RUNTIME;
1212		2209
1213	return unless $self->dirty;	2210	return unless $self->dirty;
1214		2211
		2212	my $save = $self->save_path; utf8::encode $save;
		2213	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2214
1215	$self->{load_path} = $save;	2215	$self->{load_path} = $save;
1216		2216
1217	return if $self->{deny_save};	2217	return if $self->{deny_save};
1218		2218
		2219	local $self->{last_access} = $self->last_access;#d#
		2220
		2221	cf::async {
		2222	$Coro::current->{desc} = "map player save";
		2223	$_->contr->save for $self->players;
		2224	};
		2225
		2226	cf::get_slot 0.02;
		2227
1219	if ($uniq) {	2228	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2229	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	2230	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	2231	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2232	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	2233	}
1225	}	2234	}
1226		2235
1227	sub swap_out {	2236	sub swap_out {
1228	my ($self) = @_;	2237	my ($self) = @_;
1229		2238
		2239	# save first because save cedes
		2240	$self->save;
		2241
		2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2243
1230	return if $self->players;	2244	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	2245	return if $self->in_memory != cf::MAP_ACTIVE;
1232	return if $self->{deny_save};	2246	return if $self->{deny_save};
1233		2247
		2248	$self->in_memory (cf::MAP_SWAPPED);
		2249
1234	$self->save;	2250	$self->deactivate;
		2251	$_->clear_links_to ($self) for values %cf::MAP;
1235	$self->clear;	2252	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);
1237	}	2253	}
1238		2254
1239	sub reset_at {	2255	sub reset_at {
1240	my ($self) = @_;	2256	my ($self) = @_;
1241		2257
1242	# TODO: safety, remove and allow resettable per-player maps	2258	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	2259	return 1e99 if $self->{deny_reset};
1245		2260
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2261	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	2262	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		2263
1250	$time + $to	2264	$time + $to
1251	}	2265	}
1252		2266
1253	sub should_reset {	2267	sub should_reset {
1254	my ($self) = @_;	2268	my ($self) = @_;
1255		2269
1256	$self->reset_at <= $cf::RUNTIME	2270	$self->reset_at <= $cf::RUNTIME
1257	}	2271	}
1258		2272
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	2273	sub reset {
1268	my ($self) = @_;	2274	my ($self) = @_;
1269		2275
		2276	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2277
1270	return if $self->players;	2278	return if $self->players;
1271	return if $self->{path}{user_rel};#d#
1272		2279
1273	warn "resetting map ", $self->path;#d#	2280	warn "resetting map ", $self->path, "\n";
		2281
		2282	$self->in_memory (cf::MAP_SWAPPED);
		2283
		2284	# need to save uniques path
		2285	unless ($self->{deny_save}) {
		2286	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2287
		2288	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2289	if $uniq;
		2290	}
1274		2291
1275	delete $cf::MAP{$self->path};	2292	delete $cf::MAP{$self->path};
1276		2293
		2294	$self->deactivate;
1277	$_->clear_links_to ($self) for values %cf::MAP;	2295	$_->clear_links_to ($self) for values %cf::MAP;
		2296	$self->clear;
1278		2297
1279	$self->unlink_save;	2298	$self->unlink_save;
1280	$self->destroy;	2299	$self->destroy;
1281	}	2300	}
1282		2301
1283	sub customise_for {	2302	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		2303
1286	if ($map->per_player) {	2304	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2305	my ($self) = @_;
		2306
1288	}	2307	{
		2308	my $lock = cf::lock_acquire "map_data:$self->{path}";
1289		2309
1290	$map	2310	delete $cf::MAP{$self->path};
1291	}
1292		2311
1293	sub emergency_save {	2312	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		2313
1296	warn "enter emergency map save\n";	2314	bless $self, "cf::map";
		2315	delete $self->{deny_reset};
		2316	$self->{deny_save} = 1;
		2317	$self->reset_timeout (1);
		2318	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		2319
1298	cf::sync_job {	2320	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";
1300	$_->save for values %cf::MAP;
1301	};	2321	}
1302		2322
1303	warn "end emergency map save\n";	2323	$self->reset; # polite request, might not happen
		2324	}
		2325
		2326	=item $maps = cf::map::tmp_maps
		2327
		2328	Returns an arrayref with all map paths of currently instantiated and saved
		2329	maps. May block.
		2330
		2331	=cut
		2332
		2333	sub tmp_maps() {
		2334	[
		2335	map {
		2336	utf8::decode $_;
		2337	/\.map$/
		2338	? normalise $_
		2339	: ()
		2340	} @{ aio_readdir $TMPDIR or [] }
		2341	]
		2342	}
		2343
		2344	=item $maps = cf::map::random_maps
		2345
		2346	Returns an arrayref with all map paths of currently instantiated and saved
		2347	random maps. May block.
		2348
		2349	=cut
		2350
		2351	sub random_maps() {
		2352	[
		2353	map {
		2354	utf8::decode $_;
		2355	/\.map$/
		2356	? normalise "?random/$_"
		2357	: ()
		2358	} @{ aio_readdir $RANDOMDIR or [] }
		2359	]
		2360	}
		2361
		2362	=item cf::map::unique_maps
		2363
		2364	Returns an arrayref of paths of all shared maps that have
		2365	instantiated unique items. May block.
		2366
		2367	=cut
		2368
		2369	sub unique_maps() {
		2370	[
		2371	map {
		2372	utf8::decode $_;
		2373	s/\.map$//; # TODO future compatibility hack
		2374	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2375	? ()
		2376	: normalise $_
		2377	} @{ aio_readdir $UNIQUEDIR or [] }
		2378	]
		2379	}
		2380
		2381	=item cf::map::static_maps
		2382
		2383	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2384	file in the shared directory excluding F</styles> and F</editor>). May
		2385	block.
		2386
		2387	=cut
		2388
		2389	sub static_maps() {
		2390	my @dirs = "";
		2391	my @maps;
		2392
		2393	while (@dirs) {
		2394	my $dir = shift @dirs;
		2395
		2396	next if $dir eq "/styles" || $dir eq "/editor";
		2397
		2398	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2399	or return;
		2400
		2401	for (@$files) {
		2402	s/\.map$// or next;
		2403	utf8::decode $_;
		2404	push @maps, "$dir/$_";
		2405	}
		2406
		2407	push @dirs, map "$dir/$_", @$dirs;
		2408	}
		2409
		2410	\@maps
		2411	}
		2412
		2413	=back
		2414
		2415	=head3 cf::object
		2416
		2417	=cut
		2418
		2419	package cf::object;
		2420
		2421	=over 4
		2422
		2423	=item $ob->inv_recursive
		2424
		2425	Returns the inventory of the object I<and> their inventories, recursively,
		2426	but I<not> the object itself.
		2427
		2428	=cut
		2429
		2430	sub inv_recursive_;
		2431	sub inv_recursive_ {
		2432	map { $_, inv_recursive_ $_->inv } @_
		2433	}
		2434
		2435	sub inv_recursive {
		2436	inv_recursive_ inv $_[0]
		2437	}
		2438
		2439	=item $ref = $ob->ref
		2440
		2441	Creates and returns a persistent reference to an object that can be stored as a string.
		2442
		2443	=item $ob = cf::object::deref ($refstring)
		2444
		2445	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2446	even if the object actually exists. May block.
		2447
		2448	=cut
		2449
		2450	sub deref {
		2451	my ($ref) = @_;
		2452
		2453	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2454	my ($uuid, $name) = ($1, $2);
		2455	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2456	or return;
		2457	$pl->ob->uuid eq $uuid
		2458	or return;
		2459
		2460	$pl->ob
		2461	} else {
		2462	warn "$ref: cannot resolve object reference\n";
		2463	undef
		2464	}
1304	}	2465	}
1305		2466
1306	package cf;	2467	package cf;
1307		2468
1308	=back	2469	=back
1309
1310		2470
1311	=head3 cf::object::player	2471	=head3 cf::object::player
1312		2472
1313	=over 4	2473	=over 4
1314		2474
…		…
1317	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2477	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1318	can be C<undef>. Does the right thing when the player is currently in a	2478	can be C<undef>. Does the right thing when the player is currently in a
1319	dialogue with the given NPC character.	2479	dialogue with the given NPC character.
1320		2480
1321	=cut	2481	=cut
		2482
		2483	our $SAY_CHANNEL = {
		2484	id => "say",
		2485	title => "Map",
		2486	reply => "say ",
		2487	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2488	};
		2489
		2490	our $CHAT_CHANNEL = {
		2491	id => "chat",
		2492	title => "Chat",
		2493	reply => "chat ",
		2494	tooltip => "Player chat and shouts, global to the server.",
		2495	};
1322		2496
1323	# rough implementation of a future "reply" method that works	2497	# rough implementation of a future "reply" method that works
1324	# with dialog boxes.	2498	# with dialog boxes.
1325	#TODO: the first argument must go, split into a $npc->reply_to ( method	2499	#TODO: the first argument must go, split into a $npc->reply_to ( method
1326	sub cf::object::player::reply($$$;$) {	2500	sub cf::object::player::reply($$$;$) {
…		…
1328		2502
1329	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2503	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1330		2504
1331	if ($self->{record_replies}) {	2505	if ($self->{record_replies}) {
1332	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2506	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2507
1333	} else {	2508	} else {
		2509	my $pl = $self->contr;
		2510
		2511	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2512	my $dialog = $pl->{npc_dialog};
		2513	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2514
		2515	} else {
1334	$msg = $npc->name . " says: $msg" if $npc;	2516	$msg = $npc->name . " says: $msg" if $npc;
1335	$self->message ($msg, $flags);	2517	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2518	}
1336	}	2519	}
		2520	}
		2521
		2522	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2523
		2524	=cut
		2525
		2526	sub cf::object::send_msg {
		2527	my $pl = shift->contr
		2528	or return;
		2529	$pl->send_msg (@_);
1337	}	2530	}
1338		2531
1339	=item $player_object->may ("access")	2532	=item $player_object->may ("access")
1340		2533
1341	Returns wether the given player is authorized to access resource "access"	2534	Returns wether the given player is authorized to access resource "access"
…		…
1350	(ref $cf::CFG{"may_$access"}	2543	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2544	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	2545	: $cf::CFG{"may_$access"})
1353	}	2546	}
1354		2547
		2548	=item $player_object->enter_link
		2549
		2550	Freezes the player and moves him/her to a special map (C<{link}>).
		2551
		2552	The player should be reasonably safe there for short amounts of time (e.g.
		2553	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2554	though, as the palyer cannot control the character while it is on the link
		2555	map.
		2556
		2557	Will never block.
		2558
		2559	=item $player_object->leave_link ($map, $x, $y)
		2560
		2561	Moves the player out of the special C<{link}> map onto the specified
		2562	map. If the map is not valid (or omitted), the player will be moved back
		2563	to the location he/she was before the call to C<enter_link>, or, if that
		2564	fails, to the emergency map position.
		2565
		2566	Might block.
		2567
		2568	=cut
		2569
		2570	sub link_map {
		2571	unless ($LINK_MAP) {
		2572	$LINK_MAP = cf::map::find "{link}"
		2573	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2574	$LINK_MAP->load;
		2575	}
		2576
		2577	$LINK_MAP
		2578	}
		2579
1355	sub cf::object::player::enter_link {	2580	sub cf::object::player::enter_link {
1356	my ($self) = @_;	2581	my ($self) = @_;
1357		2582
1358	return if $self->map == $LINK_MAP;
1359
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;
1362
1363	$self->enter_map ($LINK_MAP, 20, 20);
1364	$self->deactivate_recursive;	2583	$self->deactivate_recursive;
		2584
		2585	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2586
		2587	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2588	if $self->map && $self->map->{path} ne "{link}";
		2589
		2590	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1365	}	2591	}
1366		2592
1367	sub cf::object::player::leave_link {	2593	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	2594	my ($self, $map, $x, $y) = @_;
1369		2595
		2596	return unless $self->contr->active;
		2597
1370	my $link_pos = delete $self->{_link_pos};	2598	my $link_pos = delete $self->{_link_pos};
1371		2599
1372	unless ($map) {	2600	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	2601	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	2602	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	2603	$map = cf::map::find $map;
1378		2604
1379	unless ($map) {	2605	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	2606	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	2607	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	2608	or die "FATAL: cannot load emergency map\n";
1383	}	2609	}
1384	}	2610	}
1385		2611
1386	($x, $y) = (-1, -1)	2612	($x, $y) = (-1, -1)
1387	unless (defined $x) && (defined $y);	2613	unless (defined $x) && (defined $y);
1388		2614
1389	# use -1 or undef as default coordinates, not 0, 0	2615	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	2616	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	2617	if $x <= 0 && $y <= 0;
1392		2618
1393	$map->load;	2619	$map->load;
		2620	$map->load_neighbours;
1394		2621
		2622	return unless $self->contr->active;
		2623
		2624	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2625	$self->enter_map ($map, $x, $y);
		2626
		2627	# only activate afterwards, to support waiting in hooks
1395	$self->activate_recursive;	2628	$self->activate_recursive;
1396	$self->enter_map ($map, $x, $y);
1397	}	2629	}
1398		2630
1399	=item $player_object->goto_map ($map, $x, $y)	2631	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1400		2632
1401	=cut	2633	Moves the player to the given map-path and coordinates by first freezing
		2634	her, loading and preparing them map, calling the provided $check callback
		2635	that has to return the map if sucecssful, and then unfreezes the player on
		2636	the new (success) or old (failed) map position. In either case, $done will
		2637	be called at the end of this process.
1402		2638
		2639	Note that $check will be called with a potentially non-loaded map, so if
		2640	it needs a loaded map it has to call C<< ->load >>.
		2641
		2642	=cut
		2643
		2644	our $GOTOGEN;
		2645
1403	sub cf::object::player::goto_map {	2646	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	2647	my ($self, $path, $x, $y, $check, $done) = @_;
		2648
		2649	# do generation counting so two concurrent goto's will be executed in-order
		2650	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1405		2651
1406	$self->enter_link;	2652	$self->enter_link;
1407		2653
1408	(Coro::async {	2654	(async {
1409	$path = new cf::path $path;	2655	$Coro::current->{desc} = "player::goto $path $x $y";
1410		2656
1411	my $map = cf::map::find_map $path->as_string;	2657	# *tag paths override both path and x|y
		2658	if ($path =~ /^\*(.*)$/) {
		2659	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2660	my $ob = $obs[rand @obs];
		2661
		2662	# see if we actually can go there
		2663	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2664	$ob = $obs[rand @obs];
		2665	} else {
		2666	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2667	}
		2668	# else put us there anyways for now #d#
		2669
		2670	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2671	} else {
		2672	($path, $x, $y) = (undef, undef, undef);
		2673	}
		2674	}
		2675
		2676	my $map = eval {
		2677	my $map = defined $path ? cf::map::find $path : undef;
		2678
		2679	if ($map) {
1412	$map = $map->customise_for ($self) if $map;	2680	$map = $map->customise_for ($self);
		2681	$map = $check->($map) if $check && $map;
		2682	} else {
		2683	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2684	}
1413		2685
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	2686	$map
		2687	};
1416		2688
		2689	if ($@) {
		2690	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2691	LOG llevError | logBacktrace, Carp::longmess $@;
		2692	}
		2693
		2694	if ($gen == $self->{_goto_generation}) {
		2695	delete $self->{_goto_generation};
1417	$self->leave_link ($map, $x, $y);	2696	$self->leave_link ($map, $x, $y);
		2697	}
		2698
		2699	$done->() if $done;
1418	})->prio (1);	2700	})->prio (1);
1419	}	2701	}
1420		2702
1421	=item $player_object->enter_exit ($exit_object)	2703	=item $player_object->enter_exit ($exit_object)
1422		2704
…		…
1424		2706
1425	sub parse_random_map_params {	2707	sub parse_random_map_params {
1426	my ($spec) = @_;	2708	my ($spec) = @_;
1427		2709
1428	my $rmp = { # defaults	2710	my $rmp = { # defaults
1429	xsize => 10,	2711	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	2712	ysize => (cf::rndm 15, 40),
		2713	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2714	#layout => string,
1431	};	2715	};
1432		2716
1433	for (split /\n/, $spec) {	2717	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	2718	my ($k, $v) = split /\s+/, $_, 2;
1435		2719
…		…
1447	# that depends on the exit object	2731	# that depends on the exit object
1448		2732
1449	my $rmp = parse_random_map_params $exit->msg;	2733	my $rmp = parse_random_map_params $exit->msg;
1450		2734
1451	if ($exit->map) {	2735	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	2736	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	2737	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	2738	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	2739	$rmp->{origin_y} = $exit->y;
		2740
		2741	$exit->map->touch;
1456	}	2742	}
1457		2743
1458	$rmp->{random_seed} ||= $exit->random_seed;	2744	$rmp->{random_seed} ||= $exit->random_seed;
1459		2745
1460	my $data = cf::to_json $rmp;	2746	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1461	my $md5 = Digest::MD5::md5_hex $data;	2747	my $md5 = Digest::MD5::md5_hex $data;
		2748	my $meta = "$RANDOMDIR/$md5.meta";
1462		2749
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2750	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	2751	aio_write $fh, 0, (length $data), $data, 0;
		2752	undef $fh;
		2753	aio_rename "$meta~", $meta;
1465		2754
		2755	my $slaying = "?random/$md5";
		2756
		2757	if ($exit->valid) {
1466	$exit->slaying ("?random/$md5");	2758	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	2759	$exit->msg (undef);
		2760	}
1468	}	2761	}
1469	}	2762	}
1470		2763
1471	sub cf::object::player::enter_exit {	2764	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	2765	my ($self, $exit) = @_;
1473		2766
1474	return unless $self->type == cf::PLAYER;	2767	return unless $self->type == cf::PLAYER;
1475		2768
1476	$self->enter_link;	2769	$self->enter_link;
1477		2770
1478	(Coro::async {	2771	(async {
		2772	$Coro::current->{desc} = "enter_exit";
		2773
1479	unless (eval {	2774	unless (eval {
		2775	$self->deactivate_recursive; # just to be sure
1480		2776
		2777	# random map handling
		2778	{
		2779	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2780
1481	prepare_random_map $exit	2781	prepare_random_map $exit
1482	if $exit->slaying eq "/!";	2782	if $exit->slaying eq "/!";
		2783	}
1483		2784
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2785	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2786	my $x = $exit->stats->hp;
		2787	my $y = $exit->stats->sp;
1486		2788
		2789	$self->goto ($map, $x, $y);
		2790
		2791	# if exit is damned, update players death & WoR home-position
		2792	$self->contr->savebed ($map, $x, $y)
		2793	if $exit->flag (cf::FLAG_DAMNED);
		2794
1487	1;	2795	1
1488	}) {	2796	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	2797	$self->message ("Something went wrong deep within the deliantra server. "
1490	. "I'll try to bring you back to the map you were before. "	2798	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	2799	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	2800	cf::NDI_UNIQUE | cf::NDI_RED);
1493		2801
1494	warn "ERROR in enter_exit: $@";	2802	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	2803	$self->leave_link;
1496	}	2804	}
1497	})->prio (1);	2805	})->prio (1);
…		…
1510		2818
1511	sub cf::client::send_drawinfo {	2819	sub cf::client::send_drawinfo {
1512	my ($self, $text, $flags) = @_;	2820	my ($self, $text, $flags) = @_;
1513		2821
1514	utf8::encode $text;	2822	utf8::encode $text;
1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2823	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1516	}	2824	}
1517		2825
		2826	=item $client->send_big_packet ($pkt)
		2827
		2828	Like C<send_packet>, but tries to compress large packets, and fragments
		2829	them as required.
		2830
		2831	=cut
		2832
		2833	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2834
		2835	sub cf::client::send_big_packet {
		2836	my ($self, $pkt) = @_;
		2837
		2838	# try lzf for large packets
		2839	$pkt = "lzf " . Compress::LZF::compress $pkt
		2840	if 1024 <= length $pkt and $self->{can_lzf};
		2841
		2842	# split very large packets
		2843	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2844	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2845	$pkt = "frag";
		2846	}
		2847
		2848	$self->send_packet ($pkt);
		2849	}
		2850
		2851	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2852
		2853	Send a drawinfo or msg packet to the client, formatting the msg for the
		2854	client if neccessary. C<$type> should be a string identifying the type of
		2855	the message, with C<log> being the default. If C<$color> is negative, suppress
		2856	the message unless the client supports the msg packet.
		2857
		2858	=cut
		2859
		2860	# non-persistent channels (usually the info channel)
		2861	our %CHANNEL = (
		2862	"c/motd" => {
		2863	id => "infobox",
		2864	title => "MOTD",
		2865	reply => undef,
		2866	tooltip => "The message of the day",
		2867	},
		2868	"c/identify" => {
		2869	id => "infobox",
		2870	title => "Identify",
		2871	reply => undef,
		2872	tooltip => "Items recently identified",
		2873	},
		2874	"c/examine" => {
		2875	id => "infobox",
		2876	title => "Examine",
		2877	reply => undef,
		2878	tooltip => "Signs and other items you examined",
		2879	},
		2880	"c/shopinfo" => {
		2881	id => "infobox",
		2882	title => "Shop Info",
		2883	reply => undef,
		2884	tooltip => "What your bargaining skill tells you about the shop",
		2885	},
		2886	"c/book" => {
		2887	id => "infobox",
		2888	title => "Book",
		2889	reply => undef,
		2890	tooltip => "The contents of a note or book",
		2891	},
		2892	"c/lookat" => {
		2893	id => "infobox",
		2894	title => "Look",
		2895	reply => undef,
		2896	tooltip => "What you saw there",
		2897	},
		2898	"c/who" => {
		2899	id => "infobox",
		2900	title => "Players",
		2901	reply => undef,
		2902	tooltip => "Shows players who are currently online",
		2903	},
		2904	"c/body" => {
		2905	id => "infobox",
		2906	title => "Body Parts",
		2907	reply => undef,
		2908	tooltip => "Shows which body parts you posess and are available",
		2909	},
		2910	"c/statistics" => {
		2911	id => "infobox",
		2912	title => "Statistics",
		2913	reply => undef,
		2914	tooltip => "Shows your primary statistics",
		2915	},
		2916	"c/skills" => {
		2917	id => "infobox",
		2918	title => "Skills",
		2919	reply => undef,
		2920	tooltip => "Shows your experience per skill and item power",
		2921	},
		2922	"c/shopitems" => {
		2923	id => "infobox",
		2924	title => "Shop Items",
		2925	reply => undef,
		2926	tooltip => "Shows the items currently for sale in this shop",
		2927	},
		2928	"c/resistances" => {
		2929	id => "infobox",
		2930	title => "Resistances",
		2931	reply => undef,
		2932	tooltip => "Shows your resistances",
		2933	},
		2934	"c/pets" => {
		2935	id => "infobox",
		2936	title => "Pets",
		2937	reply => undef,
		2938	tooltip => "Shows information abotu your pets/a specific pet",
		2939	},
		2940	"c/perceiveself" => {
		2941	id => "infobox",
		2942	title => "Perceive Self",
		2943	reply => undef,
		2944	tooltip => "You gained detailed knowledge about yourself",
		2945	},
		2946	"c/uptime" => {
		2947	id => "infobox",
		2948	title => "Uptime",
		2949	reply => undef,
		2950	tooltip => "How long the server has been running since last restart",
		2951	},
		2952	"c/mapinfo" => {
		2953	id => "infobox",
		2954	title => "Map Info",
		2955	reply => undef,
		2956	tooltip => "Information related to the maps",
		2957	},
		2958	"c/party" => {
		2959	id => "party",
		2960	title => "Party",
		2961	reply => "gsay ",
		2962	tooltip => "Messages and chat related to your party",
		2963	},
		2964	"c/death" => {
		2965	id => "death",
		2966	title => "Death",
		2967	reply => undef,
		2968	tooltip => "Reason for and more info about your most recent death",
		2969	},
		2970	"c/say" => $SAY_CHANNEL,
		2971	"c/chat" => $CHAT_CHANNEL,
		2972	);
		2973
		2974	sub cf::client::send_msg {
		2975	my ($self, $channel, $msg, $color, @extra) = @_;
		2976
		2977	$msg = $self->pl->expand_cfpod ($msg)
		2978	unless $color & cf::NDI_VERBATIM;
		2979
		2980	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2981
		2982	# check predefined channels, for the benefit of C
		2983	if ($CHANNEL{$channel}) {
		2984	$channel = $CHANNEL{$channel};
		2985
		2986	$self->ext_msg (channel_info => $channel);
		2987	$channel = $channel->{id};
		2988
		2989	} elsif (ref $channel) {
		2990	# send meta info to client, if not yet sent
		2991	unless (exists $self->{channel}{$channel->{id}}) {
		2992	$self->{channel}{$channel->{id}} = $channel;
		2993	$self->ext_msg (channel_info => $channel);
		2994	}
		2995
		2996	$channel = $channel->{id};
		2997	}
		2998
		2999	return unless @extra || length $msg;
		3000
		3001	# default colour, mask it out
		3002	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3003	if $color & cf::NDI_DEF;
		3004
		3005	my $pkt = "msg "
		3006	. $self->{json_coder}->encode (
		3007	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3008	);
		3009
		3010	$self->send_big_packet ($pkt);
		3011	}
		3012
		3013	=item $client->ext_msg ($type, @msg)
		3014
		3015	Sends an ext event to the client.
		3016
		3017	=cut
		3018
		3019	sub cf::client::ext_msg($$@) {
		3020	my ($self, $type, @msg) = @_;
		3021
		3022	if ($self->extcmd == 2) {
		3023	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3024	} elsif ($self->extcmd == 1) { # TODO: remove
		3025	push @msg, msgtype => "event_$type";
		3026	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3027	}
		3028	}
		3029
		3030	=item $client->ext_reply ($msgid, @msg)
		3031
		3032	Sends an ext reply to the client.
		3033
		3034	=cut
		3035
		3036	sub cf::client::ext_reply($$@) {
		3037	my ($self, $id, @msg) = @_;
		3038
		3039	if ($self->extcmd == 2) {
		3040	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3041	} elsif ($self->extcmd == 1) {
		3042	#TODO: version 1, remove
		3043	unshift @msg, msgtype => "reply", msgid => $id;
		3044	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3045	}
		3046	}
1518		3047
1519	=item $success = $client->query ($flags, "text", \&cb)	3048	=item $success = $client->query ($flags, "text", \&cb)
1520		3049
1521	Queues a query to the client, calling the given callback with	3050	Queues a query to the client, calling the given callback with
1522	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3051	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1523	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3052	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1524		3053
1525	Queries can fail, so check the return code. Or don't, as queries will become	3054	Queries can fail, so check the return code. Or don't, as queries will
1526	reliable at some point in the future.	3055	become reliable at some point in the future.
1527		3056
1528	=cut	3057	=cut
1529		3058
1530	sub cf::client::query {	3059	sub cf::client::query {
1531	my ($self, $flags, $text, $cb) = @_;	3060	my ($self, $flags, $text, $cb) = @_;
…		…
1539	utf8::encode $text;	3068	utf8::encode $text;
1540	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3069	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1541		3070
1542	$self->send_packet ($self->{query_queue}[0][0])	3071	$self->send_packet ($self->{query_queue}[0][0])
1543	if @{ $self->{query_queue} } == 1;	3072	if @{ $self->{query_queue} } == 1;
		3073
		3074	1
1544	}	3075	}
1545		3076
1546	cf::client->attach (	3077	cf::client->attach (
		3078	on_connect => sub {
		3079	my ($ns) = @_;
		3080
		3081	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3082	},
1547	on_reply => sub {	3083	on_reply => sub {
1548	my ($ns, $msg) = @_;	3084	my ($ns, $msg) = @_;
1549		3085
1550	# this weird shuffling is so that direct followup queries	3086	# this weird shuffling is so that direct followup queries
1551	# get handled first	3087	# get handled first
1552	my $queue = delete $ns->{query_queue};	3088	my $queue = delete $ns->{query_queue}
		3089	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		3090
1554	(shift @$queue)->[1]->($msg);	3091	(shift @$queue)->[1]->($msg);
		3092	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		3093
1556	push @{ $ns->{query_queue} }, @$queue;	3094	push @{ $ns->{query_queue} }, @$queue;
1557		3095
1558	if (@{ $ns->{query_queue} } == @$queue) {	3096	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	3097	if (@$queue) {
…		…
1561	} else {	3099	} else {
1562	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3100	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1563	}	3101	}
1564	}	3102	}
1565	},	3103	},
		3104	on_exticmd => sub {
		3105	my ($ns, $buf) = @_;
		3106
		3107	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3108
		3109	if (ref $msg) {
		3110	my ($type, $reply, @payload) =
		3111	"ARRAY" eq ref $msg
		3112	? @$msg
		3113	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3114
		3115	my @reply;
		3116
		3117	if (my $cb = $EXTICMD{$type}) {
		3118	@reply = $cb->($ns, @payload);
		3119	}
		3120
		3121	$ns->ext_reply ($reply, @reply)
		3122	if $reply;
		3123
		3124	} else {
		3125	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3126	}
		3127
		3128	cf::override;
		3129	},
1566	);	3130	);
1567		3131
1568	=item $client->coro (\&cb)	3132	=item $client->async (\&cb)
1569		3133
1570	Create a new coroutine, running the specified callback. The coroutine will	3134	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	3135	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	3136	or loss of connection).
1573		3137
1574	=cut	3138	=cut
1575		3139
1576	sub cf::client::coro {	3140	sub cf::client::async {
1577	my ($self, $cb) = @_;	3141	my ($self, $cb) = @_;
1578		3142
1579	my $coro; $coro = async {	3143	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		3144
1586	$coro->on_destroy (sub {	3145	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	3146	delete $self->{_coro}{$coro+0};
1588	});	3147	});
1589		3148
…		…
1591		3150
1592	$coro	3151	$coro
1593	}	3152	}
1594		3153
1595	cf::client->attach (	3154	cf::client->attach (
1596	on_destroy => sub {	3155	on_client_destroy => sub {
1597	my ($ns) = @_;	3156	my ($ns) = @_;
1598		3157
1599	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3158	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1600	},	3159	},
1601	);	3160	);
…		…
1616	our $safe = new Safe "safe";	3175	our $safe = new Safe "safe";
1617	our $safe_hole = new Safe::Hole;	3176	our $safe_hole = new Safe::Hole;
1618		3177
1619	$SIG{FPE} = 'IGNORE';	3178	$SIG{FPE} = 'IGNORE';
1620		3179
1621	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3180	$safe->permit_only (Opcode::opset qw(
		3181	:base_core :base_mem :base_orig :base_math :base_loop
		3182	grepstart grepwhile mapstart mapwhile
		3183	sort time
		3184	));
1622		3185
1623	# here we export the classes and methods available to script code	3186	# here we export the classes and methods available to script code
1624		3187
1625	=pod	3188	=pod
1626		3189
1627	The following fucntions and emthods are available within a safe environment:	3190	The following functions and methods are available within a safe environment:
1628		3191
1629	cf::object contr pay_amount pay_player map	3192	cf::object
		3193	contr pay_amount pay_player map x y force_find force_add destroy
		3194	insert remove name archname title slaying race decrease split
		3195	value
		3196
1630	cf::object::player player	3197	cf::object::player
1631	cf::player peaceful	3198	player
1632	cf::map trigger	3199
		3200	cf::player
		3201	peaceful
		3202
		3203	cf::map
		3204	trigger
1633		3205
1634	=cut	3206	=cut
1635		3207
1636	for (	3208	for (
1637	["cf::object" => qw(contr pay_amount pay_player map)],	3209	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3210	insert remove inv nrof name archname title slaying race
		3211	decrease split destroy change_exp value msg lore send_msg)],
1638	["cf::object::player" => qw(player)],	3212	["cf::object::player" => qw(player)],
1639	["cf::player" => qw(peaceful)],	3213	["cf::player" => qw(peaceful send_msg)],
1640	["cf::map" => qw(trigger)],	3214	["cf::map" => qw(trigger)],
1641	) {	3215	) {
1642	no strict 'refs';	3216	no strict 'refs';
1643	my ($pkg, @funs) = @$_;	3217	my ($pkg, @funs) = @$_;
1644	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3218	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1662		3236
1663	my $qcode = $code;	3237	my $qcode = $code;
1664	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3238	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1665	$qcode =~ s/\n/\\n/g;	3239	$qcode =~ s/\n/\\n/g;
1666		3240
		3241	%vars = (_dummy => 0) unless %vars;
		3242
		3243	my @res;
1667	local $_;	3244	local $_;
1668	local @safe::cf::_safe_eval_args = values %vars;
1669		3245
1670	my $eval =	3246	my $eval =
1671	"do {\n"	3247	"do {\n"
1672	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3248	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1673	. "#line 0 \"{$qcode}\"\n"	3249	. "#line 0 \"{$qcode}\"\n"
1674	. $code	3250	. $code
1675	. "\n}"	3251	. "\n}"
1676	;	3252	;
1677		3253
		3254	if ($CFG{safe_eval}) {
1678	sub_generation_inc;	3255	sub_generation_inc;
		3256	local @safe::cf::_safe_eval_args = values %vars;
1679	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3257	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1680	sub_generation_inc;	3258	sub_generation_inc;
		3259	} else {
		3260	local @cf::_safe_eval_args = values %vars;
		3261	@res = wantarray ? eval eval : scalar eval $eval;
		3262	}
1681		3263
1682	if ($@) {	3264	if ($@) {
1683	warn "$@";	3265	warn "$@";
1684	warn "while executing safe code '$code'\n";	3266	warn "while executing safe code '$code'\n";
1685	warn "with arguments " . (join " ", %vars) . "\n";	3267	warn "with arguments " . (join " ", %vars) . "\n";
…		…
1704	=cut	3286	=cut
1705		3287
1706	sub register_script_function {	3288	sub register_script_function {
1707	my ($fun, $cb) = @_;	3289	my ($fun, $cb) = @_;
1708		3290
1709	no strict 'refs';	3291	$fun = "safe::$fun" if $CFG{safe_eval};
1710	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3292	*$fun = $safe_hole->wrap ($cb);
1711	}	3293	}
1712		3294
1713	=back	3295	=back
1714		3296
1715	=cut	3297	=cut
1716		3298
1717	#############################################################################	3299	#############################################################################
		3300	# the server's init and main functions
1718		3301
1719	=head2 EXTENSION DATABASE SUPPORT	3302	sub load_facedata($) {
		3303	my ($path) = @_;
1720		3304
1721	Crossfire maintains a very simple database for extension use. It can	3305	# HACK to clear player env face cache, we need some signal framework
1722	currently store anything that can be serialised using Storable, which	3306	# for this (global event?)
1723	excludes objects.	3307	%ext::player_env::MUSIC_FACE_CACHE = ();
1724		3308
1725	The parameter C<$family> should best start with the name of the extension	3309	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1726	using it, it should be unique.
1727		3310
1728	=over 4	3311	warn "loading facedata from $path\n";
1729		3312
1730	=item $hashref = cf::db_get $family	3313	my $facedata;
		3314	0 < aio_load $path, $facedata
		3315	or die "$path: $!";
1731		3316
1732	Return a hashref for use by the extension C<$family>, which can be	3317	$facedata = Coro::Storable::thaw $facedata;
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735		3318
1736	=item $value = cf::db_get $family => $key	3319	$facedata->{version} == 2
		3320	or cf::cleanup "$path: version mismatch, cannot proceed.";
1737		3321
1738	Returns a single value from the database	3322	# patch in the exptable
1739		3323	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1740	=item cf::db_put $family => $hashref	3324	$facedata->{resource}{"res/exp_table"} = {
1741		3325	type => FT_RSRC,
1742	Stores the given family hashref into the database. Updates are delayed, if	3326	data => $exp_table,
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3327	hash => (Digest::MD5::md5 $exp_table),
1744
1745	=item cf::db_put $family => $key => $value
1746
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757
1758	=cut
1759
1760	our $DB;
1761
1762	{
1763	my $path = cf::localdir . "/database.pst";
1764
1765	sub db_load() {
1766	warn "loading database $path\n";#d# remove later
1767	$DB = stat $path ? Storable::retrieve $path : { };
1768	}
1769
1770	my $pid;
1771
1772	sub db_save() {
1773	warn "saving database $path\n";#d# remove later
1774	waitpid $pid, 0 if $pid;
1775	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});	3328	};
		3329	cf::cede_to_tick;
1793		3330
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}	3331	{
		3332	my $faces = $facedata->{faceinfo};
1798		3333
1799	sub db_get($;$) {	3334	while (my ($face, $info) = each %$faces) {
1800	@_ >= 2	3335	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804		3336
1805	sub db_put($$;$) {	3337	cf::face::set_visibility $idx, $info->{visibility};
1806	if (@_ >= 3) {	3338	cf::face::set_magicmap $idx, $info->{magicmap};
1807	$DB->{$_[0]}{$_[1]} = $_[2];	3339	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1808	} else {	3340	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1809	$DB->{$_[0]} = $_[1];
1810	}
1811	db_dirty;
1812	}
1813		3341
1814	cf::global->attach (	3342	cf::cede_to_tick;
1815	prio => 10000,
1816	on_cleanup => sub {
1817	db_sync;
1818	},	3343	}
1819	);
1820	}
1821		3344
1822	#############################################################################	3345	while (my ($face, $info) = each %$faces) {
1823	# the server's main()	3346	next unless $info->{smooth};
1824		3347
1825	sub cfg_load {	3348	my $idx = cf::face::find $face
		3349	or next;
		3350
		3351	if (my $smooth = cf::face::find $info->{smooth}) {
		3352	cf::face::set_smooth $idx, $smooth;
		3353	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3354	} else {
		3355	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3356	}
		3357
		3358	cf::cede_to_tick;
		3359	}
		3360	}
		3361
		3362	{
		3363	my $anims = $facedata->{animinfo};
		3364
		3365	while (my ($anim, $info) = each %$anims) {
		3366	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3367	cf::cede_to_tick;
		3368	}
		3369
		3370	cf::anim::invalidate_all; # d'oh
		3371	}
		3372
		3373	{
		3374	my $res = $facedata->{resource};
		3375
		3376	while (my ($name, $info) = each %$res) {
		3377	if (defined $info->{type}) {
		3378	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3379
		3380	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3381	cf::face::set_type $idx, $info->{type};
		3382	} else {
		3383	$RESOURCE{$name} = $info;
		3384	}
		3385
		3386	cf::cede_to_tick;
		3387	}
		3388	}
		3389
		3390	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3391
		3392	1
		3393	}
		3394
		3395	cf::global->attach (on_resource_update => sub {
		3396	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3397	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3398
		3399	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3400	my $sound = $soundconf->{compat}[$_]
		3401	or next;
		3402
		3403	my $face = cf::face::find "sound/$sound->[1]";
		3404	cf::sound::set $sound->[0] => $face;
		3405	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3406	}
		3407
		3408	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3409	my $face = cf::face::find "sound/$v";
		3410	cf::sound::set $k => $face;
		3411	}
		3412	}
		3413	});
		3414
		3415	register_exticmd fx_want => sub {
		3416	my ($ns, $want) = @_;
		3417
		3418	while (my ($k, $v) = each %$want) {
		3419	$ns->fx_want ($k, $v);
		3420	}
		3421	};
		3422
		3423	sub load_resource_file($) {
		3424	my $guard = lock_acquire "load_resource_file";
		3425
		3426	my $status = load_resource_file_ $_[0];
		3427	get_slot 0.1, 100;
		3428	cf::arch::commit_load;
		3429
		3430	$status
		3431	}
		3432
		3433	sub reload_regions {
		3434	# HACK to clear player env face cache, we need some signal framework
		3435	# for this (global event?)
		3436	%ext::player_env::MUSIC_FACE_CACHE = ();
		3437
		3438	load_resource_file "$MAPDIR/regions"
		3439	or die "unable to load regions file\n";
		3440
		3441	for (cf::region::list) {
		3442	$_->{match} = qr/$_->{match}/
		3443	if exists $_->{match};
		3444	}
		3445	}
		3446
		3447	sub reload_facedata {
		3448	load_facedata "$DATADIR/facedata"
		3449	or die "unable to load facedata\n";
		3450	}
		3451
		3452	sub reload_archetypes {
		3453	load_resource_file "$DATADIR/archetypes"
		3454	or die "unable to load archetypes\n";
		3455	}
		3456
		3457	sub reload_treasures {
		3458	load_resource_file "$DATADIR/treasures"
		3459	or die "unable to load treasurelists\n";
		3460	}
		3461
		3462	sub reload_resources {
		3463	warn "reloading resource files...\n";
		3464
		3465	reload_facedata;
		3466	reload_archetypes;
		3467	reload_regions;
		3468	reload_treasures;
		3469
		3470	warn "finished reloading resource files\n";
		3471	}
		3472
		3473	sub reload_config {
		3474	warn "reloading config file...\n";
		3475
1826	open my $fh, "<:utf8", cf::confdir . "/config"	3476	open my $fh, "<:utf8", "$CONFDIR/config"
1827	or return;	3477	or return;
1828		3478
1829	local $/;	3479	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	3480	*CFG = YAML::XS::Load scalar <$fh>;
		3481
		3482	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3483
		3484	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3485	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3486
		3487	if (exists $CFG{mlockall}) {
		3488	eval {
		3489	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3490	and die "WARNING: m(un)lockall failed: $!\n";
		3491	};
		3492	warn $@ if $@;
		3493	}
		3494
		3495	warn "finished reloading resource files\n";
		3496	}
		3497
		3498	sub pidfile() {
		3499	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3500	or die "$PIDFILE: $!";
		3501	flock $fh, &Fcntl::LOCK_EX
		3502	or die "$PIDFILE: flock: $!";
		3503	$fh
		3504	}
		3505
		3506	# make sure only one server instance is running at any one time
		3507	sub atomic {
		3508	my $fh = pidfile;
		3509
		3510	my $pid = <$fh>;
		3511	kill 9, $pid if $pid > 0;
		3512
		3513	seek $fh, 0, 0;
		3514	print $fh $$;
		3515	}
		3516
		3517	sub main_loop {
		3518	warn "EV::loop starting\n";
		3519	if (1) {
		3520	EV::loop;
		3521	}
		3522	warn "EV::loop returned\n";
		3523	goto &main_loop unless $REALLY_UNLOOP;
1831	}	3524	}
1832		3525
1833	sub main {	3526	sub main {
		3527	cf::init_globals; # initialise logging
		3528
		3529	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3530	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3531	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3532	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3533
		3534	cf::init_experience;
		3535	cf::init_anim;
		3536	cf::init_attackmess;
		3537	cf::init_dynamic;
		3538
		3539	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3540
1834	# we must not ever block the main coroutine	3541	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	3542	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3543	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	3544	(async {
1838	Event::one_event;	3545	$Coro::current->{desc} = "IDLE BUG HANDLER";
1839	})->();	3546	EV::loop EV::LOOP_ONESHOT;
		3547	})->prio (Coro::PRIO_MAX);
1840	};	3548	};
1841		3549
1842	cfg_load;	3550	evthread_start IO::AIO::poll_fileno;
1843	db_load;	3551
		3552	cf::sync_job {
		3553	cf::load_settings;
		3554	cf::load_materials;
		3555
		3556	reload_resources;
		3557	reload_config;
		3558	db_init;
		3559
		3560	cf::init_uuid;
		3561	cf::init_signals;
		3562	cf::init_skills;
		3563
		3564	cf::init_beforeplay;
		3565
		3566	atomic;
		3567
1844	load_extensions;	3568	load_extensions;
1845	Event::loop;	3569
		3570	utime time, time, $RUNTIMEFILE;
		3571
		3572	# no (long-running) fork's whatsoever before this point(!)
		3573	use POSIX ();
		3574	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3575
		3576	(pop @POST_INIT)->(0) while @POST_INIT;
		3577	};
		3578
		3579	main_loop;
1846	}	3580	}
1847		3581
1848	#############################################################################	3582	#############################################################################
1849	# initialisation	3583	# initialisation and cleanup
1850		3584
		3585	# install some emergency cleanup handlers
		3586	BEGIN {
		3587	our %SIGWATCHER = ();
		3588	for my $signal (qw(INT HUP TERM)) {
		3589	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3590	cf::cleanup "SIG$signal";
		3591	};
		3592	}
		3593	}
		3594
		3595	sub write_runtime_sync {
		3596	my $t0 = EV::time;
		3597
		3598	# first touch the runtime file to show we are still running:
		3599	# the fsync below can take a very very long time.
		3600
		3601	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3602
		3603	my $guard = cf::lock_acquire "write_runtime";
		3604
		3605	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3606	or return;
		3607
		3608	my $value = $cf::RUNTIME + 90 + 10;
		3609	# 10 is the runtime save interval, for a monotonic clock
		3610	# 60 allows for the watchdog to kill the server.
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	# touch it again to show we are up-to-date
		3620	aio_utime $fh, undef, undef;
		3621
		3622	close $fh
		3623	or return;
		3624
		3625	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3626	and return;
		3627
		3628	warn sprintf "runtime file written (%gs).\n", EV::time - $t0;
		3629
		3630	1
		3631	}
		3632
		3633	our $uuid_lock;
		3634	our $uuid_skip;
		3635
		3636	sub write_uuid_sync($) {
		3637	$uuid_skip ||= $_[0];
		3638
		3639	return if $uuid_lock;
		3640	local $uuid_lock = 1;
		3641
		3642	my $uuid = "$LOCALDIR/uuid";
		3643
		3644	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3645	or return;
		3646
		3647	my $value = uuid_seq uuid_cur;
		3648
		3649	unless ($value) {
		3650	warn "cowardly refusing to write zero uuid value!\n";
		3651	return;
		3652	}
		3653
		3654	my $value = uuid_str $value + $uuid_skip;
		3655	$uuid_skip = 0;
		3656
		3657	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3658	and return;
		3659
		3660	# always fsync - this file is important
		3661	aio_fsync $fh
		3662	and return;
		3663
		3664	close $fh
		3665	or return;
		3666
		3667	aio_rename "$uuid~", $uuid
		3668	and return;
		3669
		3670	warn "uuid file written ($value).\n";
		3671
		3672	1
		3673
		3674	}
		3675
		3676	sub write_uuid($$) {
		3677	my ($skip, $sync) = @_;
		3678
		3679	$sync ? write_uuid_sync $skip
		3680	: async { write_uuid_sync $skip };
		3681	}
		3682
		3683	sub emergency_save() {
		3684	my $freeze_guard = cf::freeze_mainloop;
		3685
		3686	warn "emergency_perl_save: enter\n";
		3687
		3688	cf::sync_job {
		3689	# this is a trade-off: we want to be very quick here, so
		3690	# save all maps without fsync, and later call a global sync
		3691	# (which in turn might be very very slow)
		3692	local $USE_FSYNC = 0;
		3693
		3694	# use a peculiar iteration method to avoid tripping on perl
		3695	# refcount bugs in for. also avoids problems with players
		3696	# and maps saved/destroyed asynchronously.
		3697	warn "emergency_perl_save: begin player save\n";
		3698	for my $login (keys %cf::PLAYER) {
		3699	my $pl = $cf::PLAYER{$login} or next;
		3700	$pl->valid or next;
		3701	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3702	$pl->save;
		3703	}
		3704	warn "emergency_perl_save: end player save\n";
		3705
		3706	warn "emergency_perl_save: begin map save\n";
		3707	for my $path (keys %cf::MAP) {
		3708	my $map = $cf::MAP{$path} or next;
		3709	$map->valid or next;
		3710	$map->save;
		3711	}
		3712	warn "emergency_perl_save: end map save\n";
		3713
		3714	warn "emergency_perl_save: begin database checkpoint\n";
		3715	BDB::db_env_txn_checkpoint $DB_ENV;
		3716	warn "emergency_perl_save: end database checkpoint\n";
		3717
		3718	warn "emergency_perl_save: begin write uuid\n";
		3719	write_uuid_sync 1;
		3720	warn "emergency_perl_save: end write uuid\n";
		3721	};
		3722
		3723	warn "emergency_perl_save: starting sync()\n";
		3724	IO::AIO::aio_sync sub {
		3725	warn "emergency_perl_save: finished sync()\n";
		3726	};
		3727
		3728	warn "emergency_perl_save: leave\n";
		3729	}
		3730
		3731	sub post_cleanup {
		3732	my ($make_core) = @_;
		3733
		3734	warn Carp::longmess "post_cleanup backtrace"
		3735	if $make_core;
		3736
		3737	my $fh = pidfile;
		3738	unlink $PIDFILE if <$fh> == $$;
		3739	}
		3740
		3741	# a safer delete_package, copied from Symbol
		3742	sub clear_package($) {
		3743	my $pkg = shift;
		3744
		3745	# expand to full symbol table name if needed
		3746	unless ($pkg =~ /^main::.*::$/) {
		3747	$pkg = "main$pkg" if $pkg =~ /^::/;
		3748	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3749	$pkg .= '::' unless $pkg =~ /::$/;
		3750	}
		3751
		3752	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3753	my $stem_symtab = *{$stem}{HASH};
		3754
		3755	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3756	or return;
		3757
		3758	# clear all symbols
		3759	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3760	for my $name (keys %$leaf_symtab) {
		3761	_gv_clear *{"$pkg$name"};
		3762	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3763	}
		3764	warn "cleared package $pkg\n";#d#
		3765	}
		3766
1851	sub reload() {	3767	sub do_reload_perl() {
1852	# can/must only be called in main	3768	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	3769	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	3770	warn "can only reload from main coroutine";
1855	return;	3771	return;
1856	}	3772	}
1857		3773
		3774	return if $RELOAD++;
		3775
		3776	my $t1 = EV::time;
		3777
		3778	while ($RELOAD) {
1858	warn "reloading...";	3779	warn "reloading...";
1859		3780
1860	local $FREEZE = 1;	3781	warn "entering sync_job";
		3782
		3783	cf::sync_job {
		3784	cf::write_runtime_sync; # external watchdog should not bark
1861	cf::emergency_save;	3785	cf::emergency_save;
		3786	cf::write_runtime_sync; # external watchdog should not bark
1862		3787
1863	eval {	3788	warn "syncing database to disk";
		3789	BDB::db_env_txn_checkpoint $DB_ENV;
		3790
1864	# if anything goes wrong in here, we should simply crash as we already saved	3791	# if anything goes wrong in here, we should simply crash as we already saved
1865		3792
1866	# cancel all watchers	3793	warn "flushing outstanding aio requests";
1867	for (Event::all_watchers) {	3794	while (IO::AIO::nreqs || BDB::nreqs) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	3795	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
1869	}
1870
1871	# cancel all extension coros
1872	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();
1874
1875	# unload all extensions
1876	for (@exts) {
1877	warn "unloading <$_>";
1878	unload_extension $_;
1879	}
1880
1881	# unload all modules loaded from $LIBDIR
1882	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884
1885	warn "removing <$k>";
1886	delete $INC{$k};
1887
1888	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;
1890
1891	if (my $cb = $k->can ("unload_module")) {
1892	$cb->();
1893	}	3796	}
1894		3797
1895	Symbol::delete_package $k;	3798	warn "cancelling all extension coros";
		3799	$_->cancel for values %EXT_CORO;
		3800	%EXT_CORO = ();
		3801
		3802	warn "removing commands";
		3803	%COMMAND = ();
		3804
		3805	warn "removing ext/exti commands";
		3806	%EXTCMD = ();
		3807	%EXTICMD = ();
		3808
		3809	warn "unloading/nuking all extensions";
		3810	for my $pkg (@EXTS) {
		3811	warn "... unloading $pkg";
		3812
		3813	if (my $cb = $pkg->can ("unload")) {
		3814	eval {
		3815	$cb->($pkg);
		3816	1
		3817	} or warn "$pkg unloaded, but with errors: $@";
		3818	}
		3819
		3820	warn "... clearing $pkg";
		3821	clear_package $pkg;
1896	}	3822	}
1897		3823
1898	# sync database to disk	3824	warn "unloading all perl modules loaded from $LIBDIR";
1899	cf::db_sync;	3825	while (my ($k, $v) = each %INC) {
1900	IO::AIO::flush;	3826	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1901		3827
		3828	warn "... unloading $k";
		3829	delete $INC{$k};
		3830
		3831	$k =~ s/\.pm$//;
		3832	$k =~ s/\//::/g;
		3833
		3834	if (my $cb = $k->can ("unload_module")) {
		3835	$cb->();
		3836	}
		3837
		3838	clear_package $k;
		3839	}
		3840
1902	# get rid of safe::, as good as possible	3841	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	3842	clear_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3843	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		3844
1906	# remove register_script_function callbacks	3845	warn "unloading cf.pm \"a bit\"";
1907	# TODO
1908
1909	# unload cf.pm "a bit"
1910	delete $INC{"cf.pm"};	3846	delete $INC{"cf.pm"};
		3847	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1911		3848
1912	# don't, removes xs symbols, too,	3849	# don't, removes xs symbols, too,
1913	# and global variables created in xs	3850	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	3851	#clear_package __PACKAGE__;
1915		3852
1916	# reload cf.pm	3853	warn "unload completed, starting to reload now";
		3854
1917	warn "reloading cf.pm";	3855	warn "reloading cf.pm";
1918	require cf;	3856	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3857	cf::_connect_to_perl_1;
1920		3858
1921	# load config and database again	3859	warn "loading config and database again";
1922	cf::cfg_load;	3860	cf::reload_config;
1923	cf::db_load;
1924		3861
1925	# load extensions
1926	warn "load extensions";	3862	warn "loading extensions";
1927	cf::load_extensions;	3863	cf::load_extensions;
1928		3864
1929	# reattach attachments to objects	3865	if ($REATTACH_ON_RELOAD) {
		3866	warn "reattaching attachments to objects/players";
		3867	_global_reattach; # objects, sockets
		3868	warn "reattaching attachments to maps";
		3869	reattach $_ for values %MAP;
		3870	warn "reattaching attachments to players";
		3871	reattach $_ for values %PLAYER;
		3872	}
		3873
		3874	warn "running post_init jobs";
		3875	(pop @POST_INIT)->(1) while @POST_INIT;
		3876
		3877	warn "leaving sync_job";
		3878
		3879	1
		3880	} or do {
		3881	warn $@;
		3882	cf::cleanup "error while reloading, exiting.";
		3883	};
		3884
1930	warn "reattach";	3885	warn "reloaded";
1931	_global_reattach;	3886	--$RELOAD;
		3887	}
		3888
		3889	$t1 = EV::time - $t1;
		3890	warn "reload completed in ${t1}s\n";
		3891	};
		3892
		3893	our $RELOAD_WATCHER; # used only during reload
		3894
		3895	sub reload_perl() {
		3896	# doing reload synchronously and two reloads happen back-to-back,
		3897	# coro crashes during coro_state_free->destroy here.
		3898
		3899	$RELOAD_WATCHER ||= cf::async {
		3900	Coro::AIO::aio_wait cache_extensions;
		3901
		3902	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3903	do_reload_perl;
		3904	undef $RELOAD_WATCHER;
		3905	};
1932	};	3906	};
1933
1934	if ($@) {
1935	warn $@;
1936	warn "error while reloading, exiting.";
1937	exit 1;
1938	}
1939
1940	warn "reloaded successfully";
1941	};
1942
1943	#############################################################################
1944
1945	unless ($LINK_MAP) {
1946	$LINK_MAP = cf::map::new;
1947
1948	$LINK_MAP->width (41);
1949	$LINK_MAP->height (41);
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,
1958	cb => sub {
1959	$_[0]->w->cancel;
1960
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});
1979
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}	3907	}
1985
1986	register "<global>", __PACKAGE__;
1987		3908
1988	register_command "reload" => sub {	3909	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	3910	my ($who, $arg) = @_;
1990		3911
1991	if ($who->flag (FLAG_WIZ)) {	3912	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");
1993	reload;
1994	$who->message ("end of reload.");	3913	$who->message ("reloading server.");
		3914	async {
		3915	$Coro::current->{desc} = "perl_reload";
		3916	reload_perl;
		3917	};
1995	}	3918	}
1996	};	3919	};
1997		3920
1998	unshift @INC, $LIBDIR;	3921	unshift @INC, $LIBDIR;
1999		3922
2000	$TICK_WATCHER = Event->timer (	3923	my $bug_warning = 0;
2001	reentrant => 0,	3924
2002	prio => 0,	3925	our @WAIT_FOR_TICK;
2003	at => $NEXT_TICK || $TICK,	3926	our @WAIT_FOR_TICK_BEGIN;
2004	data => WF_AUTOCANCEL,	3927
2005	cb => sub {	3928	sub wait_for_tick {
2006	unless ($FREEZE) {	3929	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3930
		3931	my $signal = new Coro::Signal;
		3932	push @WAIT_FOR_TICK, $signal;
		3933	$signal->wait;
		3934	}
		3935
		3936	sub wait_for_tick_begin {
		3937	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		3938
		3939	my $signal = new Coro::Signal;
		3940	push @WAIT_FOR_TICK_BEGIN, $signal;
		3941	$signal->wait;
		3942	}
		3943
		3944	sub tick {
		3945	if ($Coro::current != $Coro::main) {
		3946	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3947	unless ++$bug_warning > 10;
		3948	return;
		3949	}
		3950
2007	cf::server_tick; # one server iteration	3951	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;
2009	}
2010		3952
2011	$NEXT_TICK += $TICK;	3953	#for(1..3e6){} EV::now_update; $NOW=EV::now; # generate load #d#
2012		3954
2013	# if we are delayed by four ticks or more, skip them all	3955	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3956	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2015		3957	Coro::async_pool {
2016	$TICK_WATCHER->at ($NEXT_TICK);	3958	$Coro::current->{desc} = "runtime saver";
2017	$TICK_WATCHER->start;
2018	},
2019	);
2020
2021	IO::AIO::max_poll_time $TICK * 0.2;
2022
2023	Event->io (
2024	fd => IO::AIO::poll_fileno,
2025	poll => 'r',
2026	prio => 5,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,
2033	after => 0,
2034	interval => 10,
2035	cb => sub {
2036	(Coro::unblock_sub {
2037	write_runtime	3959	write_runtime_sync
2038	or warn "ERROR: unable to write runtime file: $!";	3960	or warn "ERROR: unable to write runtime file: $!";
2039	})->();	3961	};
2040	},	3962	}
2041	);	3963
		3964	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3965	$sig->send;
		3966	}
		3967	while (my $sig = shift @WAIT_FOR_TICK) {
		3968	$sig->send;
		3969	}
		3970
		3971	$LOAD = ($NOW - $TICK_START) / $TICK;
		3972	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3973
		3974	if (0) {
		3975	if ($NEXT_TICK) {
		3976	my $jitter = $TICK_START - $NEXT_TICK;
		3977	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3978	warn "jitter $JITTER\n";#d#
		3979	}
		3980	}
		3981	}
		3982
		3983	{
		3984	# configure BDB
		3985
		3986	BDB::min_parallel 16;
		3987	BDB::max_poll_reqs $TICK * 0.1;
		3988	$AnyEvent::BDB::WATCHER->priority (1);
		3989
		3990	unless ($DB_ENV) {
		3991	$DB_ENV = BDB::db_env_create;
		3992	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3993	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3994	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3995	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3996	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3997
		3998	cf::sync_job {
		3999	eval {
		4000	BDB::db_env_open
		4001	$DB_ENV,
		4002	$BDBDIR,
		4003	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4004	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4005	0666;
		4006
		4007	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4008	};
		4009
		4010	cf::cleanup "db_env_open(db): $@" if $@;
		4011	};
		4012	}
		4013
		4014	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4015	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4016	};
		4017	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4018	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4019	};
		4020	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4021	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4022	};
		4023	}
		4024
		4025	{
		4026	# configure IO::AIO
		4027
		4028	IO::AIO::min_parallel 8;
		4029	IO::AIO::max_poll_time $TICK * 0.1;
		4030	undef $AnyEvent::AIO::WATCHER;
		4031	}
		4032
		4033	my $_log_backtrace;
		4034
		4035	sub _log_backtrace {
		4036	my ($msg, @addr) = @_;
		4037
		4038	$msg =~ s/\n//;
		4039
		4040	# limit the # of concurrent backtraces
		4041	if ($_log_backtrace < 2) {
		4042	++$_log_backtrace;
		4043	my $perl_bt = Carp::longmess $msg;
		4044	async {
		4045	$Coro::current->{desc} = "abt $msg";
		4046
		4047	my @bt = fork_call {
		4048	@addr = map { sprintf "%x", $_ } @addr;
		4049	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4050	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4051	or die "addr2line: $!";
		4052
		4053	my @funcs;
		4054	my @res = <$fh>;
		4055	chomp for @res;
		4056	while (@res) {
		4057	my ($func, $line) = splice @res, 0, 2, ();
		4058	push @funcs, "[$func] $line";
		4059	}
		4060
		4061	@funcs
		4062	};
		4063
		4064	LOG llevInfo, "[ABT] $perl_bt\n";
		4065	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4066	LOG llevInfo, "[ABT] $_\n" for @bt;
		4067	--$_log_backtrace;
		4068	};
		4069	} else {
		4070	LOG llevInfo, "[ABT] $msg\n";
		4071	LOG llevInfo, "[ABT] [suppressed]\n";
		4072	}
		4073	}
		4074
		4075	# load additional modules
		4076	require "cf/$_.pm" for @EXTRA_MODULES;
		4077	cf::_connect_to_perl_2;
		4078
		4079	END { cf::emergency_save }
2042		4080
2043	1	4081	1
2044		4082

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