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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.486 by root, Thu Oct 15 21:56:50 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 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 ();
12		37
		38	use Guard ();
13	use Coro 3.3;	39	use Coro ();
		40	use Coro::State;
		41	use Coro::Handle;
		42	use Coro::EV;
14	use Coro::Event;	43	use Coro::AnyEvent;
15	use Coro::Timer;	44	use Coro::Timer;
16	use Coro::Signal;	45	use Coro::Signal;
17	use Coro::Semaphore;	46	use Coro::Semaphore;
		47	use Coro::SemaphoreSet;
		48	use Coro::AnyEvent;
18	use Coro::AIO;	49	use Coro::AIO;
		50	use Coro::BDB 1.6;
		51	use Coro::Storable;
		52	use Coro::Util ();
19		53
		54	use JSON::XS 2.01 ();
		55	use BDB ();
		56	use Data::Dumper;
		57	use Digest::MD5;
20	use Fcntl;	58	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
23	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
24		64
25	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
26		66
27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
28	$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
29		71
30	$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" };
31		80
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		82
34	our %COMMAND = ();	83	our %COMMAND = ();
35	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
37		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
38	our @EVENT;	93	our @EVENT;
39	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
40		96
41	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
42	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
43	our $NEXT_TICK;	115	our $NEXT_TICK;
44	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);
45		124
46	our %CFG;	125	our %CFG;
47		126
48	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
50		130
51	our %MAP; # all maps	131	our (%PLAYER, %PLAYER_LOADING); # all users
52	our $LINK_MAP; # the special {link} map	132	our (%MAP, %MAP_LOADING ); # all maps
53	our $FREEZE;	133	our $LINK_MAP; # the special {link} map, which is always available
		134
		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 $REALLY_UNLOOP; # never set to true, please :)
54		147
55	binmode STDOUT;	148	binmode STDOUT;
56	binmode STDERR;	149	binmode STDERR;
57		150
58	# read virtual server time, if available	151	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
60	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
61	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
62	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
63	}	156	}
64		157
65	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
66	mkdir cf::localdir . "/" . cf::playerdir;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		159
70	our %EXT_CORO;	160	mkdir $_
		161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		162
		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::"} };
71		177
72	#############################################################################	178	#############################################################################
73		179
74	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
75		181
…		…
82	=item $cf::RUNTIME	188	=item $cf::RUNTIME
83		189
84	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
85	every server tick.	191	every server tick.
86		192
87	=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
88		196
89	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
90	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.
91		201
92	=item $cf::NOW	202	=item $cf::NOW
93		203
94	The time of the last (current) server tick.	204	The time of the last (current) server tick.
95		205
96	=item $cf::TICK	206	=item $cf::TICK
97		207
98	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
99		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
100	=item %cf::CFG	220	=item %cf::CFG
101		221
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
103	from wherever your confdir points to.	223	from wherever your confdir points to.
104		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
105	=back	243	=back
106		244
107	=cut	245	=cut
108		246
109	BEGIN {	247	$Coro::State::WARNHOOK = sub {
110	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	248	my $msg = join "", @_;
112	utf8::encode $msg;
113		249
114	$msg .= "\n"	250	$msg .= "\n"
115	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
116		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
117	LOG llevError, "cfperl: $msg";	255	LOG llevError, $msg;
118	};	256	};
119	}	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	};
120		271
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@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';
126	@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)
127		279
128	# 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
129	# within the Safe compartment.	281	# within the Safe compartment.
130	for my $pkg (qw(	282	for my $pkg (qw(
131	cf::global cf::attachable	283	cf::global cf::attachable
132	cf::object cf::object::player	284	cf::object cf::object::player
133	cf::client cf::player	285	cf::client cf::player
134	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
135	cf::map cf::party cf::region	288	cf::party cf::region
136	)) {	289	)) {
137	no strict 'refs';
138	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
139	}	291	}
140		292
141	$Event::DIED = sub {	293	$EV::DIED = sub {
142	warn "error in event callback: @_";	294	warn "error in event callback: @_";
143	};	295	};
144		296
145	my %ext_pkg;	297	#############################################################################
146	my @exts;
147	my @hook;
148		298
149	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
150		300
151	=over 4	301	=over 4
152		302
153	=cut	303	=item dumpval $ref
154		304
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	305	=cut
156		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
157	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
158		327
159	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
160		329
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
169		331
170	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
171		333
172	=cut	334	=cut
173		335
174	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]
177	}
178		337
179	# main coro must never ever "block" except in Event	338	sub encode_json($) { $json_coder->encode ($_[0]) }
180	# sync_job ensures this by running the job in a coroutine	339	sub decode_json($) { $json_coder->decode ($_[0]) }
181	# and waiting in Event while the server is otherwise frozen	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;
		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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
		456	}
		457	};
		458
		459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
		471	}
		472
		473	=item cf::async { BLOCK }
		474
		475	Currently the same as Coro::async_pool, meaning you cannot use
		476	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		477	thing you are allowed to do is call C<prio> on it.
		478
		479	=cut
		480
		481	BEGIN { *async = \&Coro::async_pool }
		482
		483	=item cf::sync_job { BLOCK }
		484
		485	The design of Deliantra requires that the main coroutine ($Coro::main)
		486	is always able to handle events or runnable, as Deliantra is only
		487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
		489
		490	If it must be done, put the blocking parts into C<sync_job>. This will run
		491	the given BLOCK in another coroutine while waiting for the result. The
		492	server will be frozen during this time, so the block should either finish
		493	fast or be very important.
		494
		495	=cut
		496
182	sub sync_job(&) {	497	sub sync_job(&) {
183	my ($job) = @_;	498	my ($job) = @_;
184		499
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
		503	# this is the main coro, too bad, we have to block
		504	# till the operation succeeds, freezing the server :/
		505
		506	LOG llevError, Carp::longmess "sync job";#d#
		507
		508	my $freeze_guard = freeze_mainloop;
		509
		510	my $busy = 1;
		511	my @res;
		512
		513	(async {
		514	$Coro::current->desc ("sync job coro");
		515	@res = eval { $job->() };
		516	warn $@ if $@;
		517	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
		519
198	while ($busy) {	520	while ($busy) {
		521	if (Coro::nready) {
199	Coro::cede_notself;	522	Coro::cede_notself;
200	Event::one_event unless Coro::nready;	523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
201	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
		531
		532	wantarray ? @res : $res[0]
202	} else {	533	} else {
203	$coro->join;	534	# we are in another coroutine, how wonderful, everything just works
		535
		536	$job->()
204	}	537	}
205
206	wantarray ? @res : $res[0]
207	}	538	}
208		539
209	=item $coro = cf::coro { BLOCK }	540	=item $coro = cf::async_ext { BLOCK }
210		541
211	Creates and returns a new coro. This coro is automcatially being canceled	542	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	543	extension calling this is being unloaded.
213		544
214	=cut	545	=cut
215		546
216	sub coro(&) {	547	sub async_ext(&) {
217	my $cb = shift;	548	my $cb = shift;
218		549
219	my $coro; $coro = async {	550	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		551
226	$coro->on_destroy (sub {	552	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	553	delete $EXT_CORO{$coro+0};
228	});	554	});
229	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
230		556
231	$coro	557	$coro
232	}	558	}
233		559
		560	=item fork_call { }, $args
		561
		562	Executes the given code block with the given arguments in a seperate
		563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
		566
		567	=cut
		568
		569	sub fork_call(&@) {
		570	my ($cb, @args) = @_;
		571
		572	# we seemingly have to make a local copy of the whole thing,
		573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
		575
		576	my @res = Coro::Util::fork_eval {
		577	reset_signals;
		578	&$cb
		579	}, @args;
		580
		581	wantarray ? @res : $res[-1]
		582	}
		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
		660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		747	}
		748
234	=back	749	=back
235		750
236	=cut	751	=cut
237		752
238	#############################################################################	753	#############################################################################
239		754
240	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
241		756
242	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
243	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
244	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
245		760
246	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
247	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
248	crossfire+).	763	Deliantra).
249		764
250	=over 4	765	=over 4
251		766
252	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
253		768
…		…
297	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
298		813
299	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
300	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
301		816
302	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
303	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
304		819
305	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
306		821
307	=over 4	822	=over 4
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	882	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	883	our @CB_MAP = ();
369		884
370	my %attachment;	885	my %attachment;
371		886
		887	sub cf::attachable::thawer_merge {
		888	# simply override everything except _meta
		889	local $_[0]{_meta};
		890	%{$_[0]} = %{$_[1]};
		891	}
		892
372	sub _attach_cb($$$$) {	893	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	894	my ($registry, $event, $prio, $cb) = @_;
374		895
375	use sort 'stable';	896	use sort 'stable';
376		897
…		…
410	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
411		932
412	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
413	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
414	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
415	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
416		937
417	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
418	my $pkg = shift @arg;	939	my $pkg = shift @arg;
419		940
420	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
449	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
450	}	971	}
451		972
452	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
453	} else {	974	} else {
454	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
455	}	976	}
456		977
457	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
458	}	979	}
459		980
…		…
461	if (ref $_[0]) {	982	if (ref $_[0]) {
462	_object_attach @_;	983	_object_attach @_;
463	} else {	984	} else {
464	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
465	}	986	}
		987	_recalc_want;
466	};	988	};
467		989
468	# all those should be optimised	990	# all those should be optimised
469	sub cf::attachable::detach {	991	sub cf::attachable::detach {
470	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
473	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
474	reattach ($obj);	996	reattach ($obj);
475	} else {	997	} else {
476	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
477	}	999	}
		1000	_recalc_want;
478	};	1001	};
479		1002
480	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
481	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
482		1005
…		…
497	";	1020	";
498	die if $@;	1021	die if $@;
499	}	1022	}
500		1023
501	our $override;	1024	our $override;
502	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
503		1026
504	sub override {	1027	sub override {
505	$override = 1;	1028	$override = 1;
506	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
507	}	1030	}
508		1031
509	sub do_invoke {	1032	sub do_invoke {
510	my $event = shift;	1033	my $event = shift;
511	my $callbacks = shift;	1034	my $callbacks = shift;
512		1035
513	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
514		1037
515	local $override;	1038	local $override;
516		1039
517	for (@$callbacks) {	1040	for (@$callbacks) {
518	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
527	}	1050	}
528		1051
529	0	1052	0
530	}	1053	}
531		1054
532	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
533		1056
534	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
535		1058
536	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
537		1060
538	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
539	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
540	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
541		1064
542	=back	1065	=back
543		1066
544	=cut	1067	=cut
545		1068
546	#############################################################################	1069	#############################################################################
547	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
548		1113
549	sub reattach {	1114	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	1116	my ($obj) = @_;
		1117
		1118	# no longer needed after getting rid of delete_package?
		1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		1120
553	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
554		1122
555	@$registry = ();	1123	@$registry = ();
556		1124
…		…
571	cf::attachable->attach (	1139	cf::attachable->attach (
572	prio => -1000000,	1140	prio => -1000000,
573	on_instantiate => sub {	1141	on_instantiate => sub {
574	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
575		1143
576	$data = from_json $data;	1144	$data = decode_json $data;
577		1145
578	for (@$data) {	1146	for (@$data) {
579	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
580		1148
581	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
597	sub object_freezer_save {	1165	sub object_freezer_save {
598	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
599		1167
600	sync_job {	1168	sync_job {
601	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
602	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
603	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
604		1173
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1177	if ($cf::USE_FSYNC) {
		1178	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;
608	aio_fsync $fh;	1179	aio_fsync $fh;
		1180	}
609	close $fh;	1181	aio_close $fh;
610		1182
611	if (@$objs) {	1183	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1184	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	1187	aio_write $fh, 0, (length $data), $data, 0;
		1188	if ($cf::USE_FSYNC) {
		1189	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;
616	aio_fsync $fh;	1190	aio_fsync $fh;
		1191	}
617	close $fh;	1192	aio_close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
619	}	1194	}
620	} else {	1195	} else {
621	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
622	}	1197	}
623		1198
624	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
625	} else {	1203	} else {
626	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
627	}	1205	}
628	} else {	1206	} else {
629	aio_unlink $filename;	1207	aio_unlink $filename;
630	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
631	}	1209	}
632	}	1210	};
633	}	1211	}
634		1212
635	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
636	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
637		1215
…		…
649	or return;	1227	or return;
650		1228
651	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
653	or return;	1231	or return;
		1232
654	$av = eval { (Storable::thaw <$av>)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
655	}	1235	}
656		1236
		1237	utf8::decode (my $decname = $filename);
		1238	warn sprintf "loading %s (%d,%d)\n",
		1239	$decname, length $data, scalar @{$av || []};
		1240
657	return ($data, $av);	1241	($data, $av)
658	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
659		1249
660	#############################################################################	1250	#############################################################################
661	# command handling &c	1251	# command handling &c
662		1252
663	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
676	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
677	}	1267	}
678		1268
679	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
680		1270
681	Register a callbackf ro execution when the client sends an extcmd packet.	1271	Register a callback for execution when the client sends an (synchronous)
		1272	extcmd packet. Ext commands will be processed in the order they are
		1273	received by the server, like other user commands. The first argument is
		1274	the logged-in player. Ext commands can only be processed after a player
		1275	has logged in successfully.
682		1276
683	If the callback returns something, it is sent back as if reply was being	1277	If the callback returns something, it is sent back as if reply was being
684	called.	1278	called.
685		1279
		1280	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1281
		1282	Register a callback for execution when the client sends an (asynchronous)
		1283	exticmd packet. Exti commands are processed by the server as soon as they
		1284	are received, i.e. out of order w.r.t. other commands. The first argument
		1285	is a client socket. Exti commands can be received anytime, even before
		1286	log-in.
		1287
		1288	If the callback returns something, it is sent back as if reply was being
		1289	called.
		1290
686	=cut	1291	=cut
687		1292
688	sub register_extcmd {	1293	sub register_extcmd {
689	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
690		1295
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	1296	$EXTCMD{$name} = $cb;
695	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
696		1306
697	cf::player->attach (	1307	cf::player->attach (
698	on_command => sub {	1308	on_command => sub {
699	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
700		1310
…		…
708	cf::override;	1318	cf::override;
709	},	1319	},
710	on_extcmd => sub {	1320	on_extcmd => sub {
711	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
712		1322
713	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
714		1324
715	if (ref $msg) {	1325	if (ref $msg) {
		1326	my ($type, $reply, @payload) =
		1327	"ARRAY" eq ref $msg
		1328	? @$msg
		1329	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1330
		1331	my @reply;
		1332
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
718	$pl->ext_reply ($msg->{msgid}, %reply);
719	}
720	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
721	} else {	1340	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
723	}	1342	}
724		1343
725	cf::override;	1344	cf::override;
726	},	1345	},
727	);	1346	);
728		1347
		1348	# "readahead" all extensions
		1349	sub cache_extensions {
		1350	my $grp = IO::AIO::aio_group;
		1351
		1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
		1353	for (grep /\.ext$/, @{$_[0]}) {
		1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1355	}
		1356	};
		1357
		1358	$grp
		1359	}
		1360
		1361	sub load_extensions {
		1362	cf::sync_job {
		1363	my %todo;
		1364
		1365	for my $path (<$LIBDIR/*.ext>) {
		1366	next unless -r $path;
		1367
		1368	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1369	my $base = $1;
		1370	my $pkg = $1;
		1371	$pkg =~ s/[^[:word:]]/_/g;
		1372	$pkg = "ext::$pkg";
		1373
		1374	open my $fh, "<:utf8", $path
		1375	or die "$path: $!";
		1376
		1377	my $source = do { local $/; <$fh> };
		1378
		1379	my %ext = (
		1380	path => $path,
		1381	base => $base,
		1382	pkg => $pkg,
		1383	);
		1384
		1385	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1386	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1387
		1388	$ext{source} =
		1389	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1390	. "#line 1 \"$path\"\n{\n"
		1391	. $source
		1392	. "\n};\n1";
		1393
		1394	$todo{$base} = \%ext;
		1395	}
		1396
		1397	my %done;
		1398	while (%todo) {
		1399	my $progress;
		1400
		1401	while (my ($k, $v) = each %todo) {
		1402	for (split /,\s*/, $v->{meta}{depends}) {
		1403	goto skip
		1404	unless exists $done{$_};
		1405	}
		1406
		1407	warn "... loading '$k' into '$v->{pkg}'\n";
		1408
		1409	unless (eval $v->{source}) {
		1410	my $msg = $@ ? "$v->{path}: $@\n"
		1411	: "$v->{base}: extension inactive.\n";
		1412
		1413	if (exists $v->{meta}{mandatory}) {
		1414	warn $msg;
		1415	cf::cleanup "mandatory extension failed to load, exiting.";
		1416	}
		1417
		1418	warn $msg;
		1419	}
		1420
		1421	$done{$k} = delete $todo{$k};
		1422	push @EXTS, $v->{pkg};
		1423	$progress = 1;
		1424	}
		1425
		1426	skip:
		1427	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1428	unless $progress;
		1429	}
		1430	};
		1431	}
		1432
		1433	#############################################################################
		1434
		1435	=back
		1436
		1437	=head2 CORE EXTENSIONS
		1438
		1439	Functions and methods that extend core deliantra objects.
		1440
		1441	=cut
		1442
		1443	package cf::player;
		1444
		1445	use Coro::AIO;
		1446
		1447	=head3 cf::player
		1448
		1449	=over 4
		1450
		1451	=item cf::player::num_playing
		1452
		1453	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1454
		1455	=cut
		1456
		1457	sub num_playing {
		1458	scalar grep
		1459	$_->ob->map
		1460	&& !$_->hidden
		1461	&& !$_->ob->flag (cf::FLAG_WIZ),
		1462	cf::player::list
		1463	}
		1464
		1465	=item cf::player::find $login
		1466
		1467	Returns the given player object, loading it if necessary (might block).
		1468
		1469	=cut
		1470
		1471	sub playerdir($) {
		1472	"$PLAYERDIR/"
		1473	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1474	}
		1475
		1476	sub path($) {
		1477	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1478
		1479	(playerdir $login) . "/playerdata"
		1480	}
		1481
		1482	sub find_active($) {
		1483	$cf::PLAYER{$_[0]}
		1484	and $cf::PLAYER{$_[0]}->active
		1485	and $cf::PLAYER{$_[0]}
		1486	}
		1487
		1488	sub exists($) {
		1489	my ($login) = @_;
		1490
		1491	$cf::PLAYER{$login}
		1492	or !aio_stat path $login
		1493	}
		1494
		1495	sub find($) {
		1496	return $cf::PLAYER{$_[0]} || do {
		1497	my $login = $_[0];
		1498
		1499	my $guard = cf::lock_acquire "user_find:$login";
		1500
		1501	$cf::PLAYER{$_[0]} || do {
		1502	# rename old playerfiles to new ones
		1503	#TODO: remove when no longer required
		1504	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1505	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1506	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1507	aio_unlink +(playerdir $login) . "/$login.pl";
		1508
		1509	my $f = new_from_file cf::object::thawer path $login
		1510	or return;
		1511
		1512	my $pl = cf::player::load_pl $f
		1513	or return;
		1514
		1515	local $cf::PLAYER_LOADING{$login} = $pl;
		1516	$f->resolve_delayed_derefs;
		1517	$cf::PLAYER{$login} = $pl
		1518	}
		1519	}
		1520	}
		1521
		1522	sub save($) {
		1523	my ($pl) = @_;
		1524
		1525	return if $pl->{deny_save};
		1526
		1527	my $path = path $pl;
		1528	my $guard = cf::lock_acquire "user_save:$path";
		1529
		1530	return if $pl->{deny_save};
		1531
		1532	aio_mkdir playerdir $pl, 0770;
		1533	$pl->{last_save} = $cf::RUNTIME;
		1534
		1535	cf::get_slot 0.01;
		1536
		1537	$pl->save_pl ($path);
		1538	cf::cede_to_tick;
		1539	}
		1540
		1541	sub new($) {
		1542	my ($login) = @_;
		1543
		1544	my $self = create;
		1545
		1546	$self->ob->name ($login);
		1547	$self->{deny_save} = 1;
		1548
		1549	$cf::PLAYER{$login} = $self;
		1550
		1551	$self
		1552	}
		1553
		1554	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1555
		1556	=cut
		1557
		1558	sub send_msg {
		1559	my $ns = shift->ns
		1560	or return;
		1561	$ns->send_msg (@_);
		1562	}
		1563
		1564	=item $pl->quit_character
		1565
		1566	Nukes the player without looking back. If logged in, the connection will
		1567	be destroyed. May block for a long time.
		1568
		1569	=cut
		1570
		1571	sub quit_character {
		1572	my ($pl) = @_;
		1573
		1574	my $name = $pl->ob->name;
		1575
		1576	$pl->{deny_save} = 1;
		1577	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1578
		1579	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1580	$pl->deactivate;
		1581	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1582	$pl->ob->check_score;
		1583	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1584	$pl->ns->destroy if $pl->ns;
		1585
		1586	my $path = playerdir $pl;
		1587	my $temp = "$path~$cf::RUNTIME~deleting~";
		1588	aio_rename $path, $temp;
		1589	delete $cf::PLAYER{$pl->ob->name};
		1590	$pl->destroy;
		1591
		1592	my $prefix = qr<^~\Q$name\E/>;
		1593
		1594	# nuke player maps
		1595	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1596
		1597	IO::AIO::aio_rmtree $temp;
		1598	}
		1599
		1600	=item $pl->kick
		1601
		1602	Kicks a player out of the game. This destroys the connection.
		1603
		1604	=cut
		1605
		1606	sub kick {
		1607	my ($pl, $kicker) = @_;
		1608
		1609	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1610	$pl->killer ("kicked");
		1611	$pl->ns->destroy;
		1612	}
		1613
		1614	=item cf::player::list_logins
		1615
		1616	Returns am arrayref of all valid playernames in the system, can take a
		1617	while and may block, so not sync_job-capable, ever.
		1618
		1619	=cut
		1620
		1621	sub list_logins {
		1622	my $dirs = aio_readdir $PLAYERDIR
		1623	or return [];
		1624
		1625	my @logins;
		1626
		1627	for my $login (@$dirs) {
		1628	my $path = path $login;
		1629
		1630	# a .pst is a dead give-away for a valid player
		1631	# if no pst file found, open and chekc for blocked users
		1632	if (aio_stat "$path.pst") {
		1633	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1634	aio_read $fh, 0, 512, my $buf, 0 or next;
		1635	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1636	}
		1637
		1638	utf8::decode $login;
		1639	push @logins, $login;
		1640	}
		1641
		1642	\@logins
		1643	}
		1644
		1645	=item $player->maps
		1646
		1647	Returns an arrayref of map paths that are private for this
		1648	player. May block.
		1649
		1650	=cut
		1651
		1652	sub maps($) {
		1653	my ($pl) = @_;
		1654
		1655	$pl = ref $pl ? $pl->ob->name : $pl;
		1656
		1657	my $files = aio_readdir playerdir $pl
		1658	or return;
		1659
		1660	my @paths;
		1661
		1662	for (@$files) {
		1663	utf8::decode $_;
		1664	next if /\.(?:pl|pst)$/;
		1665	next unless /^$PATH_SEP/o;
		1666
		1667	push @paths, cf::map::normalise "~$pl/$_";
		1668	}
		1669
		1670	\@paths
		1671	}
		1672
		1673	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1674
		1675	Expand deliantra pod fragments into protocol xml.
		1676
		1677	=item $player->ext_reply ($msgid, @msg)
		1678
		1679	Sends an ext reply to the player.
		1680
		1681	=cut
		1682
		1683	sub ext_reply($$@) {
		1684	my ($self, $id, @msg) = @_;
		1685
		1686	$self->ns->ext_reply ($id, @msg)
		1687	}
		1688
		1689	=item $player->ext_msg ($type, @msg)
		1690
		1691	Sends an ext event to the client.
		1692
		1693	=cut
		1694
		1695	sub ext_msg($$@) {
		1696	my ($self, $type, @msg) = @_;
		1697
		1698	$self->ns->ext_msg ($type, @msg);
		1699	}
		1700
		1701	=head3 cf::region
		1702
		1703	=over 4
		1704
		1705	=cut
		1706
		1707	package cf::region;
		1708
		1709	=item cf::region::find_by_path $path
		1710
		1711	Tries to decuce the likely region for a map knowing only its path.
		1712
		1713	=cut
		1714
		1715	sub find_by_path($) {
		1716	my ($path) = @_;
		1717
		1718	my ($match, $specificity);
		1719
		1720	for my $region (list) {
		1721	if ($region->{match} && $path =~ $region->{match}) {
		1722	($match, $specificity) = ($region, $region->specificity)
		1723	if $region->specificity > $specificity;
		1724	}
		1725	}
		1726
		1727	$match
		1728	}
		1729
		1730	=back
		1731
		1732	=head3 cf::map
		1733
		1734	=over 4
		1735
		1736	=cut
		1737
		1738	package cf::map;
		1739
		1740	use Fcntl;
		1741	use Coro::AIO;
		1742
		1743	use overload
		1744	'""' => \&as_string,
		1745	fallback => 1;
		1746
		1747	our $MAX_RESET = 3600;
		1748	our $DEFAULT_RESET = 3000;
		1749
		1750	sub generate_random_map {
		1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1754
		1755	# mit "rum" bekleckern, nicht
		1756	$self->_create_random_map (
		1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1760	$rmp->{exit_on_final_map},
		1761	$rmp->{xsize}, $rmp->{ysize},
		1762	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1763	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1764	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1765	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1766	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1767	(cf::region::find $rmp->{region}), $rmp->{custom}
		1768	)
		1769	}
		1770
		1771	=item cf::map->register ($regex, $prio)
		1772
		1773	Register a handler for the map path matching the given regex at the
		1774	givne priority (higher is better, built-in handlers have priority 0, the
		1775	default).
		1776
		1777	=cut
		1778
729	sub register {	1779	sub register {
		1780	my (undef, $regex, $prio) = @_;
		1781	my $pkg = caller;
		1782
		1783	no strict;
		1784	push @{"$pkg\::ISA"}, __PACKAGE__;
		1785
		1786	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1787	}
		1788
		1789	# also paths starting with '/'
		1790	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1791
		1792	sub thawer_merge {
730	my ($base, $pkg) = @_;	1793	my ($self, $merge) = @_;
731		1794
732	#TODO	1795	# we have to keep some variables in memory intact
733	}	1796	local $self->{path};
		1797	local $self->{load_path};
734		1798
735	sub load_extension {	1799	$self->SUPER::thawer_merge ($merge);
		1800	}
		1801
		1802	sub normalise {
736	my ($path) = @_;	1803	my ($path, $base) = @_;
737		1804
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1805	$path = "$path"; # make sure its a string
739	my $base = $1;
740	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";
743		1806
744	warn "loading '$path' into '$pkg'\n";	1807	$path =~ s/\.map$//;
745		1808
746	open my $fh, "<:utf8", $path	1809	# map plan:
747	or die "$path: $!";	1810	#
		1811	# /! non-realised random map exit (special hack!)
		1812	# {... are special paths that are not being touched
		1813	# ?xxx/... are special absolute paths
		1814	# ?random/... random maps
		1815	# /... normal maps
		1816	# ~user/... per-player map of a specific user
748		1817
749	my $source =	1818	$path =~ s/$PATH_SEP/\//go;
750	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })
753	. "\n};\n1";
754		1819
755	eval $source	1820	# treat it as relative path if it starts with
756	or die $@ ? "$path: $@\n"	1821	# something that looks reasonable
757	: "extension disabled.\n";	1822	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1823	$base or Carp::carp "normalise called with relative path and no base: '$path'";
758		1824
759	push @exts, $pkg;	1825	$base =~ s{[^/]+/?$}{};
760	$ext_pkg{$base} = $pkg;	1826	$path = "$base/$path";
761
762	# no strict 'refs';
763	# @{"$pkg\::ISA"} = ext::;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }	1827	}
778		1828
779	# remove commands	1829	for ($path) {
780	for my $name (keys %COMMAND) {	1830	redo if s{//}{/};
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1831	redo if s{/\.?/}{/};
		1832	redo if s{/[^/]+/\.\./}{/};
		1833	}
782		1834
783	if (@cb) {	1835	$path
784	$COMMAND{$name} = \@cb;	1836	}
		1837
		1838	sub new_from_path {
		1839	my (undef, $path, $base) = @_;
		1840
		1841	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1842
		1843	$path = normalise $path, $base;
		1844
		1845	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1846	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1847	my $self = bless cf::map::new, $pkg;
		1848	$self->{path} = $path; $self->path ($path);
		1849	$self->init; # pass $1 etc.
		1850	return $self;
		1851	}
		1852	}
		1853
		1854	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1855	()
		1856	}
		1857
		1858	sub init {
		1859	my ($self) = @_;
		1860
		1861	$self
		1862	}
		1863
		1864	sub as_string {
		1865	my ($self) = @_;
		1866
		1867	"$self->{path}"
		1868	}
		1869
		1870	# the displayed name, this is a one way mapping
		1871	sub visible_name {
		1872	&as_string
		1873	}
		1874
		1875	# the original (read-only) location
		1876	sub load_path {
		1877	my ($self) = @_;
		1878
		1879	"$MAPDIR/$self->{path}.map"
		1880	}
		1881
		1882	# the temporary/swap location
		1883	sub save_path {
		1884	my ($self) = @_;
		1885
		1886	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1887	"$TMPDIR/$path.map"
		1888	}
		1889
		1890	# the unique path, undef == no special unique path
		1891	sub uniq_path {
		1892	my ($self) = @_;
		1893
		1894	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1895	"$UNIQUEDIR/$path"
		1896	}
		1897
		1898	sub decay_objects {
		1899	my ($self) = @_;
		1900
		1901	return if $self->{deny_reset};
		1902
		1903	$self->do_decay_objects;
		1904	}
		1905
		1906	sub unlink_save {
		1907	my ($self) = @_;
		1908
		1909	utf8::encode (my $save = $self->save_path);
		1910	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1911	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1912	}
		1913
		1914	sub load_header_from($) {
		1915	my ($self, $path) = @_;
		1916
		1917	utf8::encode $path;
		1918	my $f = new_from_file cf::object::thawer $path
		1919	or return;
		1920
		1921	$self->_load_header ($f)
		1922	or return;
		1923
		1924	local $MAP_LOADING{$self->{path}} = $self;
		1925	$f->resolve_delayed_derefs;
		1926
		1927	$self->{load_path} = $path;
		1928
		1929	1
		1930	}
		1931
		1932	sub load_header_orig {
		1933	my ($self) = @_;
		1934
		1935	$self->load_header_from ($self->load_path)
		1936	}
		1937
		1938	sub load_header_temp {
		1939	my ($self) = @_;
		1940
		1941	$self->load_header_from ($self->save_path)
		1942	}
		1943
		1944	sub prepare_temp {
		1945	my ($self) = @_;
		1946
		1947	$self->last_access ((delete $self->{last_access})
		1948	|| $cf::RUNTIME); #d#
		1949	# safety
		1950	$self->{instantiate_time} = $cf::RUNTIME
		1951	if $self->{instantiate_time} > $cf::RUNTIME;
		1952	}
		1953
		1954	sub prepare_orig {
		1955	my ($self) = @_;
		1956
		1957	$self->{load_original} = 1;
		1958	$self->{instantiate_time} = $cf::RUNTIME;
		1959	$self->last_access ($cf::RUNTIME);
		1960	$self->instantiate;
		1961	}
		1962
		1963	sub load_header {
		1964	my ($self) = @_;
		1965
		1966	if ($self->load_header_temp) {
		1967	$self->prepare_temp;
785	} else {	1968	} else {
786	delete $COMMAND{$name};	1969	$self->load_header_orig
787	}	1970	or return;
		1971	$self->prepare_orig;
		1972	}
		1973
		1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
		1976
		1977	$self->default_region (cf::region::find_by_path $self->{path})
		1978	unless $self->default_region;
		1979
788	}	1980	1
		1981	}
789		1982
790	# remove extcmds	1983	sub find;
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1984	sub find {
792	delete $EXTCMD{$name};	1985	my ($path, $origin) = @_;
		1986
		1987	$path = normalise $path, $origin && $origin->path;
		1988
		1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		1990	my $guard2 = cf::lock_acquire "map_find:$path";
		1991
		1992	$cf::MAP{$path} || do {
		1993	my $map = new_from_path cf::map $path
		1994	or return;
		1995
		1996	$map->{last_save} = $cf::RUNTIME;
		1997
		1998	$map->load_header
		1999	or return;
		2000
		2001	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2002	# doing this can freeze the server in a sync job, obviously
		2003	#$cf::WAIT_FOR_TICK->wait;
		2004	undef $guard2;
		2005	undef $guard1;
		2006	$map->reset;
		2007	return find $path;
		2008	}
		2009
		2010	$cf::MAP{$path} = $map
		2011	}
		2012	}
		2013
		2014	sub pre_load { }
		2015	sub post_load { }
		2016
		2017	sub load {
		2018	my ($self) = @_;
		2019
		2020	local $self->{deny_reset} = 1; # loading can take a long time
		2021
		2022	my $path = $self->{path};
		2023
793	}	2024	{
		2025	my $guard = cf::lock_acquire "map_data:$path";
794		2026
795	if (my $cb = $pkg->can ("unload")) {	2027	return unless $self->valid;
796	eval {	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
797	$cb->($pkg);	2029
		2030	$self->in_memory (cf::MAP_LOADING);
		2031
		2032	$self->alloc;
		2033
		2034	$self->pre_load;
		2035	cf::cede_to_tick;
		2036
		2037	my $f = new_from_file cf::object::thawer $self->{load_path};
		2038	$f->skip_block;
		2039	$self->_load_objects ($f)
		2040	or return;
		2041
		2042	$self->post_load_original
		2043	if delete $self->{load_original};
		2044
		2045	if (my $uniq = $self->uniq_path) {
		2046	utf8::encode $uniq;
		2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
		2049	$self->clear_unique_items;
		2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
798	1	2053	}
799	} or warn "$pkg unloaded, but with errors: $@";	2054	}
800	}
801		2055
802	Symbol::delete_package $pkg;	2056	$f->resolve_delayed_derefs;
803	}
804		2057
805	sub load_extensions {	2058	cf::cede_to_tick;
806	for my $ext (<$LIBDIR/*.ext>) {	2059	# now do the right thing for maps
807	next unless -r $ext;	2060	$self->link_multipart_objects;
808	eval {	2061	$self->difficulty ($self->estimate_difficulty)
809	load_extension $ext;	2062	unless $self->difficulty;
810	1	2063	cf::cede_to_tick;
811	} or warn "$ext not loaded: $@";
812	}
813	}
814		2064
815	#############################################################################	2065	unless ($self->{deny_activate}) {
816	# load/save/clean perl data associated with a map	2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
		2070	$self->activate;
		2071	}
817		2072
818	*cf::mapsupport::on_clean = sub {	2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
		2075
		2076	$self->in_memory (cf::MAP_ACTIVE);
		2077	}
		2078
		2079	$self->post_load;
		2080	}
		2081
		2082	sub customise_for {
		2083	my ($self, $ob) = @_;
		2084
		2085	return find "~" . $ob->name . "/" . $self->{path}
		2086	if $self->per_player;
		2087
		2088	# return find "?party/" . $ob->name . "/" . $self->{path}
		2089	# if $self->per_party;
		2090
		2091	$self
		2092	}
		2093
		2094	# find and load all maps in the 3x3 area around a map
		2095	sub load_neighbours {
819	my ($map) = @_;	2096	my ($map) = @_;
820		2097
821	my $path = $map->tmpname;	2098	my @neigh; # diagonal neighbours
822	defined $path or return;
823		2099
824	unlink "$path.pst";	2100	for (0 .. 3) {
825	};	2101	my $neigh = $map->tile_path ($_)
		2102	or next;
		2103	$neigh = find $neigh, $map
		2104	or next;
		2105	$neigh->load;
826		2106
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2107	push @neigh,
		2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2110	}
828		2111
829	#############################################################################	2112	for (grep defined $_->[0], @neigh) {
830	# load/save perl data associated with player->ob objects	2113	my ($path, $origin) = @$_;
831		2114	my $neigh = find $path, $origin
832	sub all_objects(@) {	2115	or next;
833	@_, map all_objects ($_->inv), @_	2116	$neigh->load;
		2117	}
834	}	2118	}
835		2119
836	# TODO: compatibility cruft, remove when no longer needed	2120	sub find_sync {
837	cf::player->attach (	2121	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		2122
841	for my $o (all_objects $pl->ob) {	2123	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2124	}
843	$o->set_ob_key_value ("_perl_data");
844		2125
845	%$o = %{ Storable::thaw pack "H*", $value };	2126	sub do_load_sync {
		2127	my ($map) = @_;
		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
		2132	cf::sync_job { $map->load };
		2133	}
		2134
		2135	our %MAP_PREFETCH;
		2136	our $MAP_PREFETCHER = undef;
		2137
		2138	sub find_async {
		2139	my ($path, $origin, $load) = @_;
		2140
		2141	$path = normalise $path, $origin && $origin->{path};
		2142
		2143	if (my $map = $cf::MAP{$path}) {
		2144	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2145	}
		2146
		2147	$MAP_PREFETCH{$path} |= $load;
		2148
		2149	$MAP_PREFETCHER ||= cf::async {
		2150	$Coro::current->{desc} = "map prefetcher";
		2151
		2152	while (%MAP_PREFETCH) {
		2153	while (my ($k, $v) = each %MAP_PREFETCH) {
		2154	if (my $map = find $k) {
		2155	$map->load if $v;
		2156	}
		2157
		2158	delete $MAP_PREFETCH{$k};
846	}	2159	}
847	}	2160	}
		2161	undef $MAP_PREFETCHER;
		2162	};
		2163	$MAP_PREFETCHER->prio (6);
		2164
		2165	()
		2166	}
		2167
		2168	sub save {
		2169	my ($self) = @_;
		2170
		2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2172
		2173	$self->{last_save} = $cf::RUNTIME;
		2174
		2175	return unless $self->dirty;
		2176
		2177	my $save = $self->save_path; utf8::encode $save;
		2178	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2179
		2180	$self->{load_path} = $save;
		2181
		2182	return if $self->{deny_save};
		2183
		2184	local $self->{last_access} = $self->last_access;#d#
		2185
		2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
		2188	$_->contr->save for $self->players;
		2189	};
		2190
		2191	cf::get_slot 0.02;
		2192
		2193	if ($uniq) {
		2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2196	} else {
		2197	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	2198	}
849	);	2199	}
850		2200
851	#############################################################################	2201	sub swap_out {
		2202	my ($self) = @_;
852		2203
853	=head2 CORE EXTENSIONS	2204	# save first because save cedes
		2205	$self->save;
854		2206
855	Functions and methods that extend core crossfire objects.	2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
856		2208
857	=head3 cf::player	2209	return if $self->players;
		2210	return if $self->in_memory != cf::MAP_ACTIVE;
		2211	return if $self->{deny_save};
		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
		2217	$self->clear;
		2218	}
		2219
		2220	sub reset_at {
		2221	my ($self) = @_;
		2222
		2223	# TODO: safety, remove and allow resettable per-player maps
		2224	return 1e99 if $self->{deny_reset};
		2225
		2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2228
		2229	$time + $to
		2230	}
		2231
		2232	sub should_reset {
		2233	my ($self) = @_;
		2234
		2235	$self->reset_at <= $cf::RUNTIME
		2236	}
		2237
		2238	sub reset {
		2239	my ($self) = @_;
		2240
		2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2242
		2243	return if $self->players;
		2244
		2245	warn "resetting map ", $self->path, "\n";
		2246
		2247	$self->in_memory (cf::MAP_SWAPPED);
		2248
		2249	# need to save uniques path
		2250	unless ($self->{deny_save}) {
		2251	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2252
		2253	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2254	if $uniq;
		2255	}
		2256
		2257	delete $cf::MAP{$self->path};
		2258
		2259	$self->deactivate;
		2260	$_->clear_links_to ($self) for values %cf::MAP;
		2261	$self->clear;
		2262
		2263	$self->unlink_save;
		2264	$self->destroy;
		2265	}
		2266
		2267	my $nuke_counter = "aaaa";
		2268
		2269	sub nuke {
		2270	my ($self) = @_;
		2271
		2272	{
		2273	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2274
		2275	delete $cf::MAP{$self->path};
		2276
		2277	$self->unlink_save;
		2278
		2279	bless $self, "cf::map";
		2280	delete $self->{deny_reset};
		2281	$self->{deny_save} = 1;
		2282	$self->reset_timeout (1);
		2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2284
		2285	$cf::MAP{$self->path} = $self;
		2286	}
		2287
		2288	$self->reset; # polite request, might not happen
		2289	}
		2290
		2291	=item $maps = cf::map::tmp_maps
		2292
		2293	Returns an arrayref with all map paths of currently instantiated and saved
		2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
		2299	[
		2300	map {
		2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
		2307	}
		2308
		2309	=item $maps = cf::map::random_maps
		2310
		2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
		2313
		2314	=cut
		2315
		2316	sub random_maps() {
		2317	[
		2318	map {
		2319	utf8::decode $_;
		2320	/\.map$/
		2321	? normalise "?random/$_"
		2322	: ()
		2323	} @{ aio_readdir $RANDOMDIR or [] }
		2324	]
		2325	}
		2326
		2327	=item cf::map::unique_maps
		2328
		2329	Returns an arrayref of paths of all shared maps that have
		2330	instantiated unique items. May block.
		2331
		2332	=cut
		2333
		2334	sub unique_maps() {
		2335	[
		2336	map {
		2337	utf8::decode $_;
		2338	s/\.map$//; # TODO future compatibility hack
		2339	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2340	? ()
		2341	: normalise $_
		2342	} @{ aio_readdir $UNIQUEDIR or [] }
		2343	]
		2344	}
		2345
		2346	=back
		2347
		2348	=head3 cf::object
		2349
		2350	=cut
		2351
		2352	package cf::object;
858		2353
859	=over 4	2354	=over 4
860		2355
861	=item cf::player::exists $login	2356	=item $ob->inv_recursive
862		2357
863	Returns true when the given account exists.	2358	Returns the inventory of the object I<and> their inventories, recursively,
		2359	but I<not> the object itself.
864		2360
865	=cut	2361	=cut
866		2362
867	sub cf::player::exists($) {	2363	sub inv_recursive_;
868	cf::player::find $_[0]	2364	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2365	map { $_, inv_recursive_ $_->inv } @_
870	}	2366	}
871		2367
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	2368	sub inv_recursive {
873		2369	inv_recursive_ inv $_[0]
874	Sends an ext reply to the player.
875
876	=cut
877
878	sub cf::player::ext_reply($$$%) {
879	my ($self, $id, %msg) = @_;
880
881	$msg{msgid} = $id;
882
883	$self->send ("ext " . to_json \%msg);
884	}	2370	}
		2371
		2372	=item $ref = $ob->ref
		2373
		2374	Creates and returns a persistent reference to an object that can be stored as a string.
		2375
		2376	=item $ob = cf::object::deref ($refstring)
		2377
		2378	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2379	even if the object actually exists. May block.
		2380
		2381	=cut
		2382
		2383	sub deref {
		2384	my ($ref) = @_;
		2385
		2386	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2387	my ($uuid, $name) = ($1, $2);
		2388	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2389	or return;
		2390	$pl->ob->uuid eq $uuid
		2391	or return;
		2392
		2393	$pl->ob
		2394	} else {
		2395	warn "$ref: cannot resolve object reference\n";
		2396	undef
		2397	}
		2398	}
		2399
		2400	package cf;
885		2401
886	=back	2402	=back
887		2403
888	=head3 cf::object::player	2404	=head3 cf::object::player
889		2405
…		…
894	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2410	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
895	can be C<undef>. Does the right thing when the player is currently in a	2411	can be C<undef>. Does the right thing when the player is currently in a
896	dialogue with the given NPC character.	2412	dialogue with the given NPC character.
897		2413
898	=cut	2414	=cut
		2415
		2416	our $SAY_CHANNEL = {
		2417	id => "say",
		2418	title => "Map",
		2419	reply => "say ",
		2420	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2421	};
		2422
		2423	our $CHAT_CHANNEL = {
		2424	id => "chat",
		2425	title => "Chat",
		2426	reply => "chat ",
		2427	tooltip => "Player chat and shouts, global to the server.",
		2428	};
899		2429
900	# rough implementation of a future "reply" method that works	2430	# rough implementation of a future "reply" method that works
901	# with dialog boxes.	2431	# with dialog boxes.
902	#TODO: the first argument must go, split into a $npc->reply_to ( method	2432	#TODO: the first argument must go, split into a $npc->reply_to ( method
903	sub cf::object::player::reply($$$;$) {	2433	sub cf::object::player::reply($$$;$) {
…		…
905		2435
906	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
907		2437
908	if ($self->{record_replies}) {	2438	if ($self->{record_replies}) {
909	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2440
910	} else {	2441	} else {
		2442	my $pl = $self->contr;
		2443
		2444	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2445	my $dialog = $pl->{npc_dialog};
		2446	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2447
		2448	} else {
911	$msg = $npc->name . " says: $msg" if $npc;	2449	$msg = $npc->name . " says: $msg" if $npc;
912	$self->message ($msg, $flags);	2450	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2451	}
913	}	2452	}
		2453	}
		2454
		2455	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2456
		2457	=cut
		2458
		2459	sub cf::object::send_msg {
		2460	my $pl = shift->contr
		2461	or return;
		2462	$pl->send_msg (@_);
914	}	2463	}
915		2464
916	=item $player_object->may ("access")	2465	=item $player_object->may ("access")
917		2466
918	Returns wether the given player is authorized to access resource "access"	2467	Returns wether the given player is authorized to access resource "access"
…		…
927	(ref $cf::CFG{"may_$access"}	2476	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2477	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	2478	: $cf::CFG{"may_$access"})
930	}	2479	}
931		2480
		2481	=item $player_object->enter_link
		2482
		2483	Freezes the player and moves him/her to a special map (C<{link}>).
		2484
		2485	The player should be reasonably safe there for short amounts of time (e.g.
		2486	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2487	though, as the palyer cannot control the character while it is on the link
		2488	map.
		2489
		2490	Will never block.
		2491
		2492	=item $player_object->leave_link ($map, $x, $y)
		2493
		2494	Moves the player out of the special C<{link}> map onto the specified
		2495	map. If the map is not valid (or omitted), the player will be moved back
		2496	to the location he/she was before the call to C<enter_link>, or, if that
		2497	fails, to the emergency map position.
		2498
		2499	Might block.
		2500
		2501	=cut
		2502
		2503	sub link_map {
		2504	unless ($LINK_MAP) {
		2505	$LINK_MAP = cf::map::find "{link}"
		2506	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2507	$LINK_MAP->load;
		2508	}
		2509
		2510	$LINK_MAP
		2511	}
		2512
		2513	sub cf::object::player::enter_link {
		2514	my ($self) = @_;
		2515
		2516	$self->deactivate_recursive;
		2517
		2518	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2519
		2520	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2521	if $self->map && $self->map->{path} ne "{link}";
		2522
		2523	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2524	}
		2525
		2526	sub cf::object::player::leave_link {
		2527	my ($self, $map, $x, $y) = @_;
		2528
		2529	return unless $self->contr->active;
		2530
		2531	my $link_pos = delete $self->{_link_pos};
		2532
		2533	unless ($map) {
		2534	# restore original map position
		2535	($map, $x, $y) = @{ $link_pos || [] };
		2536	$map = cf::map::find $map;
		2537
		2538	unless ($map) {
		2539	($map, $x, $y) = @$EMERGENCY_POSITION;
		2540	$map = cf::map::find $map
		2541	or die "FATAL: cannot load emergency map\n";
		2542	}
		2543	}
		2544
		2545	($x, $y) = (-1, -1)
		2546	unless (defined $x) && (defined $y);
		2547
		2548	# use -1 or undef as default coordinates, not 0, 0
		2549	($x, $y) = ($map->enter_x, $map->enter_y)
		2550	if $x <=0 && $y <= 0;
		2551
		2552	$map->load;
		2553	$map->load_neighbours;
		2554
		2555	return unless $self->contr->active;
		2556
		2557	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2558	$self->enter_map ($map, $x, $y);
		2559
		2560	# only activate afterwards, to support waiting in hooks
		2561	$self->activate_recursive;
		2562	}
		2563
		2564	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2565
		2566	Moves the player to the given map-path and coordinates by first freezing
		2567	her, loading and preparing them map, calling the provided $check callback
		2568	that has to return the map if sucecssful, and then unfreezes the player on
		2569	the new (success) or old (failed) map position. In either case, $done will
		2570	be called at the end of this process.
		2571
		2572	Note that $check will be called with a potentially non-loaded map, so if
		2573	it needs a loaded map it has to call C<< ->load >>.
		2574
		2575	=cut
		2576
		2577	our $GOTOGEN;
		2578
		2579	sub cf::object::player::goto {
		2580	my ($self, $path, $x, $y, $check, $done) = @_;
		2581
		2582	# do generation counting so two concurrent goto's will be executed in-order
		2583	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2584
		2585	$self->enter_link;
		2586
		2587	(async {
		2588	$Coro::current->{desc} = "player::goto $path $x $y";
		2589
		2590	# *tag paths override both path and x|y
		2591	if ($path =~ /^\*(.*)$/) {
		2592	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2593	my $ob = $obs[rand @obs];
		2594
		2595	# see if we actually can go there
		2596	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2597	$ob = $obs[rand @obs];
		2598	} else {
		2599	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601	# else put us there anyways for now #d#
		2602
		2603	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2604	} else {
		2605	($path, $x, $y) = (undef, undef, undef);
		2606	}
		2607	}
		2608
		2609	my $map = eval {
		2610	my $map = defined $path ? cf::map::find $path : undef;
		2611
		2612	if ($map) {
		2613	$map = $map->customise_for ($self);
		2614	$map = $check->($map) if $check && $map;
		2615	} else {
		2616	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
		2618
		2619	$map
		2620	};
		2621
		2622	if ($@) {
		2623	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	LOG llevError | logBacktrace, Carp::longmess $@;
		2625	}
		2626
		2627	if ($gen == $self->{_goto_generation}) {
		2628	delete $self->{_goto_generation};
		2629	$self->leave_link ($map, $x, $y);
		2630	}
		2631
		2632	$done->() if $done;
		2633	})->prio (1);
		2634	}
		2635
		2636	=item $player_object->enter_exit ($exit_object)
		2637
		2638	=cut
		2639
		2640	sub parse_random_map_params {
		2641	my ($spec) = @_;
		2642
		2643	my $rmp = { # defaults
		2644	xsize => (cf::rndm 15, 40),
		2645	ysize => (cf::rndm 15, 40),
		2646	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2647	#layout => string,
		2648	};
		2649
		2650	for (split /\n/, $spec) {
		2651	my ($k, $v) = split /\s+/, $_, 2;
		2652
		2653	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2654	}
		2655
		2656	$rmp
		2657	}
		2658
		2659	sub prepare_random_map {
		2660	my ($exit) = @_;
		2661
		2662	# all this does is basically replace the /! path by
		2663	# a new random map path (?random/...) with a seed
		2664	# that depends on the exit object
		2665
		2666	my $rmp = parse_random_map_params $exit->msg;
		2667
		2668	if ($exit->map) {
		2669	$rmp->{region} = $exit->region->name;
		2670	$rmp->{origin_map} = $exit->map->path;
		2671	$rmp->{origin_x} = $exit->x;
		2672	$rmp->{origin_y} = $exit->y;
		2673
		2674	$exit->map->touch;
		2675	}
		2676
		2677	$rmp->{random_seed} ||= $exit->random_seed;
		2678
		2679	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
		2680	my $md5 = Digest::MD5::md5_hex $data;
		2681	my $meta = "$RANDOMDIR/$md5.meta";
		2682
		2683	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2684	aio_write $fh, 0, (length $data), $data, 0;
		2685	undef $fh;
		2686	aio_rename "$meta~", $meta;
		2687
		2688	my $slaying = "?random/$md5";
		2689
		2690	if ($exit->valid) {
		2691	$exit->slaying ("?random/$md5");
		2692	$exit->msg (undef);
		2693	}
		2694	}
		2695	}
		2696
		2697	sub cf::object::player::enter_exit {
		2698	my ($self, $exit) = @_;
		2699
		2700	return unless $self->type == cf::PLAYER;
		2701
		2702	$self->enter_link;
		2703
		2704	(async {
		2705	$Coro::current->{desc} = "enter_exit";
		2706
		2707	unless (eval {
		2708	$self->deactivate_recursive; # just to be sure
		2709
		2710	# random map handling
		2711	{
		2712	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2713
		2714	prepare_random_map $exit
		2715	if $exit->slaying eq "/!";
		2716	}
		2717
		2718	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2719	my $x = $exit->stats->hp;
		2720	my $y = $exit->stats->sp;
		2721
		2722	$self->goto ($map, $x, $y);
		2723
		2724	# if exit is damned, update players death & WoR home-position
		2725	$self->contr->savebed ($map, $x, $y)
		2726	if $exit->flag (cf::FLAG_DAMNED);
		2727
		2728	1
		2729	}) {
		2730	$self->message ("Something went wrong deep within the deliantra server. "
		2731	. "I'll try to bring you back to the map you were before. "
		2732	. "Please report this to the dungeon master!",
		2733	cf::NDI_UNIQUE | cf::NDI_RED);
		2734
		2735	warn "ERROR in enter_exit: $@";
		2736	$self->leave_link;
		2737	}
		2738	})->prio (1);
		2739	}
		2740
932	=head3 cf::client	2741	=head3 cf::client
933		2742
934	=over 4	2743	=over 4
935		2744
936	=item $client->send_drawinfo ($text, $flags)	2745	=item $client->send_drawinfo ($text, $flags)
…		…
942		2751
943	sub cf::client::send_drawinfo {	2752	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	2753	my ($self, $text, $flags) = @_;
945		2754
946	utf8::encode $text;	2755	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2756	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	2757	}
949		2758
		2759	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2760
		2761	Send a drawinfo or msg packet to the client, formatting the msg for the
		2762	client if neccessary. C<$type> should be a string identifying the type of
		2763	the message, with C<log> being the default. If C<$color> is negative, suppress
		2764	the message unless the client supports the msg packet.
		2765
		2766	=cut
		2767
		2768	# non-persistent channels (usually the info channel)
		2769	our %CHANNEL = (
		2770	"c/motd" => {
		2771	id => "infobox",
		2772	title => "MOTD",
		2773	reply => undef,
		2774	tooltip => "The message of the day",
		2775	},
		2776	"c/identify" => {
		2777	id => "infobox",
		2778	title => "Identify",
		2779	reply => undef,
		2780	tooltip => "Items recently identified",
		2781	},
		2782	"c/examine" => {
		2783	id => "infobox",
		2784	title => "Examine",
		2785	reply => undef,
		2786	tooltip => "Signs and other items you examined",
		2787	},
		2788	"c/book" => {
		2789	id => "infobox",
		2790	title => "Book",
		2791	reply => undef,
		2792	tooltip => "The contents of a note or book",
		2793	},
		2794	"c/lookat" => {
		2795	id => "infobox",
		2796	title => "Look",
		2797	reply => undef,
		2798	tooltip => "What you saw there",
		2799	},
		2800	"c/who" => {
		2801	id => "infobox",
		2802	title => "Players",
		2803	reply => undef,
		2804	tooltip => "Shows players who are currently online",
		2805	},
		2806	"c/body" => {
		2807	id => "infobox",
		2808	title => "Body Parts",
		2809	reply => undef,
		2810	tooltip => "Shows which body parts you posess and are available",
		2811	},
		2812	"c/statistics" => {
		2813	id => "infobox",
		2814	title => "Statistics",
		2815	reply => undef,
		2816	tooltip => "Shows your primary statistics",
		2817	},
		2818	"c/skills" => {
		2819	id => "infobox",
		2820	title => "Skills",
		2821	reply => undef,
		2822	tooltip => "Shows your experience per skill and item power",
		2823	},
		2824	"c/shopitems" => {
		2825	id => "infobox",
		2826	title => "Shop Items",
		2827	reply => undef,
		2828	tooltip => "Shows the items currently for sale in this shop",
		2829	},
		2830	"c/resistances" => {
		2831	id => "infobox",
		2832	title => "Resistances",
		2833	reply => undef,
		2834	tooltip => "Shows your resistances",
		2835	},
		2836	"c/pets" => {
		2837	id => "infobox",
		2838	title => "Pets",
		2839	reply => undef,
		2840	tooltip => "Shows information abotu your pets/a specific pet",
		2841	},
		2842	"c/perceiveself" => {
		2843	id => "infobox",
		2844	title => "Perceive Self",
		2845	reply => undef,
		2846	tooltip => "You gained detailed knowledge about yourself",
		2847	},
		2848	"c/uptime" => {
		2849	id => "infobox",
		2850	title => "Uptime",
		2851	reply => undef,
		2852	tooltip => "How long the server has been running since last restart",
		2853	},
		2854	"c/mapinfo" => {
		2855	id => "infobox",
		2856	title => "Map Info",
		2857	reply => undef,
		2858	tooltip => "Information related to the maps",
		2859	},
		2860	"c/party" => {
		2861	id => "party",
		2862	title => "Party",
		2863	reply => "gsay ",
		2864	tooltip => "Messages and chat related to your party",
		2865	},
		2866	"c/death" => {
		2867	id => "death",
		2868	title => "Death",
		2869	reply => undef,
		2870	tooltip => "Reason for and more info about your most recent death",
		2871	},
		2872	"c/say" => $SAY_CHANNEL,
		2873	"c/chat" => $CHAT_CHANNEL,
		2874	);
		2875
		2876	sub cf::client::send_msg {
		2877	my ($self, $channel, $msg, $color, @extra) = @_;
		2878
		2879	$msg = $self->pl->expand_cfpod ($msg)
		2880	unless $color & cf::NDI_VERBATIM;
		2881
		2882	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2883
		2884	# check predefined channels, for the benefit of C
		2885	if ($CHANNEL{$channel}) {
		2886	$channel = $CHANNEL{$channel};
		2887
		2888	$self->ext_msg (channel_info => $channel);
		2889	$channel = $channel->{id};
		2890
		2891	} elsif (ref $channel) {
		2892	# send meta info to client, if not yet sent
		2893	unless (exists $self->{channel}{$channel->{id}}) {
		2894	$self->{channel}{$channel->{id}} = $channel;
		2895	$self->ext_msg (channel_info => $channel);
		2896	}
		2897
		2898	$channel = $channel->{id};
		2899	}
		2900
		2901	return unless @extra || length $msg;
		2902
		2903	# default colour, mask it out
		2904	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2905	if $color & cf::NDI_DEF;
		2906
		2907	my $pkt = "msg "
		2908	. $self->{json_coder}->encode (
		2909	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2910	);
		2911
		2912	# try lzf for large packets
		2913	$pkt = "lzf " . Compress::LZF::compress $pkt
		2914	if 1024 <= length $pkt and $self->{can_lzf};
		2915
		2916	# split very large packets
		2917	if (8192 < length $pkt and $self->{can_lzf}) {
		2918	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2919	$pkt = "frag";
		2920	}
		2921
		2922	$self->send_packet ($pkt);
		2923	}
		2924
		2925	=item $client->ext_msg ($type, @msg)
		2926
		2927	Sends an ext event to the client.
		2928
		2929	=cut
		2930
		2931	sub cf::client::ext_msg($$@) {
		2932	my ($self, $type, @msg) = @_;
		2933
		2934	if ($self->extcmd == 2) {
		2935	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2936	} elsif ($self->extcmd == 1) { # TODO: remove
		2937	push @msg, msgtype => "event_$type";
		2938	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2939	}
		2940	}
		2941
		2942	=item $client->ext_reply ($msgid, @msg)
		2943
		2944	Sends an ext reply to the client.
		2945
		2946	=cut
		2947
		2948	sub cf::client::ext_reply($$@) {
		2949	my ($self, $id, @msg) = @_;
		2950
		2951	if ($self->extcmd == 2) {
		2952	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2953	} elsif ($self->extcmd == 1) {
		2954	#TODO: version 1, remove
		2955	unshift @msg, msgtype => "reply", msgid => $id;
		2956	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2957	}
		2958	}
950		2959
951	=item $success = $client->query ($flags, "text", \&cb)	2960	=item $success = $client->query ($flags, "text", \&cb)
952		2961
953	Queues a query to the client, calling the given callback with	2962	Queues a query to the client, calling the given callback with
954	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2963	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
955	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2964	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
956		2965
957	Queries can fail, so check the return code. Or don't, as queries will become	2966	Queries can fail, so check the return code. Or don't, as queries will
958	reliable at some point in the future.	2967	become reliable at some point in the future.
959		2968
960	=cut	2969	=cut
961		2970
962	sub cf::client::query {	2971	sub cf::client::query {
963	my ($self, $flags, $text, $cb) = @_;	2972	my ($self, $flags, $text, $cb) = @_;
…		…
971	utf8::encode $text;	2980	utf8::encode $text;
972	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2981	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
973		2982
974	$self->send_packet ($self->{query_queue}[0][0])	2983	$self->send_packet ($self->{query_queue}[0][0])
975	if @{ $self->{query_queue} } == 1;	2984	if @{ $self->{query_queue} } == 1;
		2985
		2986	1
976	}	2987	}
977		2988
978	cf::client->attach (	2989	cf::client->attach (
		2990	on_connect => sub {
		2991	my ($ns) = @_;
		2992
		2993	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2994	},
979	on_reply => sub {	2995	on_reply => sub {
980	my ($ns, $msg) = @_;	2996	my ($ns, $msg) = @_;
981		2997
982	# this weird shuffling is so that direct followup queries	2998	# this weird shuffling is so that direct followup queries
983	# get handled first	2999	# get handled first
984	my $queue = delete $ns->{query_queue};	3000	my $queue = delete $ns->{query_queue}
		3001	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		3002
986	(shift @$queue)->[1]->($msg);	3003	(shift @$queue)->[1]->($msg);
		3004	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		3005
988	push @{ $ns->{query_queue} }, @$queue;	3006	push @{ $ns->{query_queue} }, @$queue;
989		3007
990	if (@{ $ns->{query_queue} } == @$queue) {	3008	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	3009	if (@$queue) {
…		…
993	} else {	3011	} else {
994	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3012	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
995	}	3013	}
996	}	3014	}
997	},	3015	},
		3016	on_exticmd => sub {
		3017	my ($ns, $buf) = @_;
		3018
		3019	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3020
		3021	if (ref $msg) {
		3022	my ($type, $reply, @payload) =
		3023	"ARRAY" eq ref $msg
		3024	? @$msg
		3025	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3026
		3027	my @reply;
		3028
		3029	if (my $cb = $EXTICMD{$type}) {
		3030	@reply = $cb->($ns, @payload);
		3031	}
		3032
		3033	$ns->ext_reply ($reply, @reply)
		3034	if $reply;
		3035
		3036	} else {
		3037	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3038	}
		3039
		3040	cf::override;
		3041	},
998	);	3042	);
999		3043
1000	=item $client->coro (\&cb)	3044	=item $client->async (\&cb)
1001		3045
1002	Create a new coroutine, running the specified callback. The coroutine will	3046	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	3047	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	3048	or loss of connection).
1005		3049
1006	=cut	3050	=cut
1007		3051
1008	sub cf::client::coro {	3052	sub cf::client::async {
1009	my ($self, $cb) = @_;	3053	my ($self, $cb) = @_;
1010		3054
1011	my $coro; $coro = async {	3055	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		3056
1018	$coro->on_destroy (sub {	3057	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	3058	delete $self->{_coro}{$coro+0};
1020	});	3059	});
1021		3060
…		…
1048	our $safe = new Safe "safe";	3087	our $safe = new Safe "safe";
1049	our $safe_hole = new Safe::Hole;	3088	our $safe_hole = new Safe::Hole;
1050		3089
1051	$SIG{FPE} = 'IGNORE';	3090	$SIG{FPE} = 'IGNORE';
1052		3091
1053	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3092	$safe->permit_only (Opcode::opset qw(
		3093	:base_core :base_mem :base_orig :base_math
		3094	grepstart grepwhile mapstart mapwhile
		3095	sort time
		3096	));
1054		3097
1055	# here we export the classes and methods available to script code	3098	# here we export the classes and methods available to script code
1056		3099
1057	=pod	3100	=pod
1058		3101
1059	The following fucntions and emthods are available within a safe environment:	3102	The following functions and methods are available within a safe environment:
1060		3103
1061	cf::object contr pay_amount pay_player map	3104	cf::object
		3105	contr pay_amount pay_player map x y force_find force_add destroy
		3106	insert remove name archname title slaying race decrease split
		3107	value
		3108
1062	cf::object::player player	3109	cf::object::player
1063	cf::player peaceful	3110	player
1064	cf::map trigger	3111
		3112	cf::player
		3113	peaceful
		3114
		3115	cf::map
		3116	trigger
1065		3117
1066	=cut	3118	=cut
1067		3119
1068	for (	3120	for (
1069	["cf::object" => qw(contr pay_amount pay_player map)],	3121	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3122	insert remove inv nrof name archname title slaying race
		3123	decrease split destroy change_exp value msg lore send_msg)],
1070	["cf::object::player" => qw(player)],	3124	["cf::object::player" => qw(player)],
1071	["cf::player" => qw(peaceful)],	3125	["cf::player" => qw(peaceful send_msg)],
1072	["cf::map" => qw(trigger)],	3126	["cf::map" => qw(trigger)],
1073	) {	3127	) {
1074	no strict 'refs';	3128	no strict 'refs';
1075	my ($pkg, @funs) = @$_;	3129	my ($pkg, @funs) = @$_;
1076	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3130	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1093	my ($code, %vars) = @_;	3147	my ($code, %vars) = @_;
1094		3148
1095	my $qcode = $code;	3149	my $qcode = $code;
1096	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3150	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1097	$qcode =~ s/\n/\\n/g;	3151	$qcode =~ s/\n/\\n/g;
		3152
		3153	%vars = (_dummy => 0) unless %vars;
1098		3154
1099	local $_;	3155	local $_;
1100	local @safe::cf::_safe_eval_args = values %vars;	3156	local @safe::cf::_safe_eval_args = values %vars;
1101		3157
1102	my $eval =	3158	my $eval =
…		…
1145	=back	3201	=back
1146		3202
1147	=cut	3203	=cut
1148		3204
1149	#############################################################################	3205	#############################################################################
		3206	# the server's init and main functions
1150		3207
1151	=head2 EXTENSION DATABASE SUPPORT	3208	sub load_facedata($) {
		3209	my ($path) = @_;
1152		3210
1153	Crossfire maintains a very simple database for extension use. It can	3211	# HACK to clear player env face cache, we need some signal framework
1154	currently store anything that can be serialised using Storable, which	3212	# for this (global event?)
1155	excludes objects.	3213	%ext::player_env::MUSIC_FACE_CACHE = ();
1156		3214
1157	The parameter C<$family> should best start with the name of the extension	3215	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1158	using it, it should be unique.
1159		3216
1160	=over 4	3217	warn "loading facedata from $path\n";
1161		3218
1162	=item $hashref = cf::db_get $family	3219	my $facedata;
		3220	0 < aio_load $path, $facedata
		3221	or die "$path: $!";
1163		3222
1164	Return a hashref for use by the extension C<$family>, which can be	3223	$facedata = Coro::Storable::thaw $facedata;
1165	modified. After modifications, you have to call C<cf::db_dirty> or
1166	C<cf::db_sync>.
1167		3224
1168	=item $value = cf::db_get $family => $key	3225	$facedata->{version} == 2
		3226	or cf::cleanup "$path: version mismatch, cannot proceed.";
1169		3227
1170	Returns a single value from the database	3228	# patch in the exptable
		3229	$facedata->{resource}{"res/exp_table"} = {
		3230	type => FT_RSRC,
		3231	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3232	};
		3233	cf::cede_to_tick;
1171		3234
1172	=item cf::db_put $family => $hashref	3235	{
		3236	my $faces = $facedata->{faceinfo};
1173		3237
1174	Stores the given family hashref into the database. Updates are delayed, if	3238	while (my ($face, $info) = each %$faces) {
1175	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3239	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1176		3240
1177	=item cf::db_put $family => $key => $value	3241	cf::face::set_visibility $idx, $info->{visibility};
		3242	cf::face::set_magicmap $idx, $info->{magicmap};
		3243	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3244	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1178		3245
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you	3246	cf::cede_to_tick;
1180	want the data to be synced to disk immediately, use C<cf::db_sync>.	3247	}
1181		3248
1182	=item cf::db_dirty	3249	while (my ($face, $info) = each %$faces) {
		3250	next unless $info->{smooth};
1183		3251
1184	Marks the database as dirty, to be updated at a later time.	3252	my $idx = cf::face::find $face
		3253	or next;
1185		3254
1186	=item cf::db_sync	3255	if (my $smooth = cf::face::find $info->{smooth}) {
		3256	cf::face::set_smooth $idx, $smooth;
		3257	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3258	} else {
		3259	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3260	}
1187		3261
1188	Immediately write the database to disk I<if it is dirty>.	3262	cf::cede_to_tick;
		3263	}
		3264	}
1189		3265
1190	=cut	3266	{
		3267	my $anims = $facedata->{animinfo};
1191		3268
1192	our $DB;	3269	while (my ($anim, $info) = each %$anims) {
		3270	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3271	cf::cede_to_tick;
		3272	}
		3273
		3274	cf::anim::invalidate_all; # d'oh
		3275	}
		3276
		3277	{
		3278	# TODO: for gcfclient pleasure, we should give resources
		3279	# that gcfclient doesn't grok a >10000 face index.
		3280	my $res = $facedata->{resource};
		3281
		3282	while (my ($name, $info) = each %$res) {
		3283	if (defined $info->{type}) {
		3284	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3285	my $data;
		3286
		3287	if ($info->{type} & 1) {
		3288	# prepend meta info
		3289
		3290	my $meta = $enc->encode ({
		3291	name => $name,
		3292	%{ $info->{meta} || {} },
		3293	});
		3294
		3295	$data = pack "(w/a*)*", $meta, $info->{data};
		3296	} else {
		3297	$data = $info->{data};
		3298	}
		3299
		3300	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3301	cf::face::set_type $idx, $info->{type};
		3302	} else {
		3303	$RESOURCE{$name} = $info;
		3304	}
		3305
		3306	cf::cede_to_tick;
		3307	}
		3308	}
		3309
		3310	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3311
		3312	1
		3313	}
		3314
		3315	cf::global->attach (on_resource_update => sub {
		3316	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3317	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3318
		3319	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3320	my $sound = $soundconf->{compat}[$_]
		3321	or next;
		3322
		3323	my $face = cf::face::find "sound/$sound->[1]";
		3324	cf::sound::set $sound->[0] => $face;
		3325	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3326	}
		3327
		3328	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3329	my $face = cf::face::find "sound/$v";
		3330	cf::sound::set $k => $face;
		3331	}
		3332	}
		3333	});
		3334
		3335	register_exticmd fx_want => sub {
		3336	my ($ns, $want) = @_;
		3337
		3338	while (my ($k, $v) = each %$want) {
		3339	$ns->fx_want ($k, $v);
		3340	}
		3341	};
		3342
		3343	sub load_resource_file($) {
		3344	my $guard = lock_acquire "load_resource_file";
		3345
		3346	my $status = load_resource_file_ $_[0];
		3347	get_slot 0.1, 100;
		3348	cf::arch::commit_load;
		3349
		3350	$status
		3351	}
		3352
		3353	sub reload_regions {
		3354	# HACK to clear player env face cache, we need some signal framework
		3355	# for this (global event?)
		3356	%ext::player_env::MUSIC_FACE_CACHE = ();
		3357
		3358	load_resource_file "$MAPDIR/regions"
		3359	or die "unable to load regions file\n";
		3360
		3361	for (cf::region::list) {
		3362	$_->{match} = qr/$_->{match}/
		3363	if exists $_->{match};
		3364	}
		3365	}
		3366
		3367	sub reload_facedata {
		3368	load_facedata "$DATADIR/facedata"
		3369	or die "unable to load facedata\n";
		3370	}
		3371
		3372	sub reload_archetypes {
		3373	load_resource_file "$DATADIR/archetypes"
		3374	or die "unable to load archetypes\n";
		3375	}
		3376
		3377	sub reload_treasures {
		3378	load_resource_file "$DATADIR/treasures"
		3379	or die "unable to load treasurelists\n";
		3380	}
		3381
		3382	sub reload_resources {
		3383	warn "reloading resource files...\n";
		3384
		3385	reload_facedata;
		3386	reload_archetypes;
		3387	reload_regions;
		3388	reload_treasures;
		3389
		3390	warn "finished reloading resource files\n";
		3391	}
		3392
		3393	sub reload_config {
		3394	warn "reloading config file...\n";
		3395
		3396	open my $fh, "<:utf8", "$CONFDIR/config"
		3397	or return;
		3398
		3399	local $/;
		3400	*CFG = YAML::XS::Load scalar <$fh>;
		3401
		3402	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3403
		3404	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3405	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3406
		3407	if (exists $CFG{mlockall}) {
		3408	eval {
		3409	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3410	and die "WARNING: m(un)lockall failed: $!\n";
		3411	};
		3412	warn $@ if $@;
		3413	}
		3414
		3415	warn "finished reloading resource files\n";
		3416	}
		3417
		3418	sub pidfile() {
		3419	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3420	or die "$PIDFILE: $!";
		3421	flock $fh, &Fcntl::LOCK_EX
		3422	or die "$PIDFILE: flock: $!";
		3423	$fh
		3424	}
		3425
		3426	# make sure only one server instance is running at any one time
		3427	sub atomic {
		3428	my $fh = pidfile;
		3429
		3430	my $pid = <$fh>;
		3431	kill 9, $pid if $pid > 0;
		3432
		3433	seek $fh, 0, 0;
		3434	print $fh $$;
		3435	}
		3436
		3437	sub main_loop {
		3438	warn "EV::loop starting\n";
		3439	if (1) {
		3440	EV::loop;
		3441	}
		3442	warn "EV::loop returned\n";
		3443	goto &main_loop unless $REALLY_UNLOOP;
		3444	}
		3445
		3446	sub main {
		3447	cf::init_globals; # initialise logging
		3448
		3449	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3450	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3451	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3452	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3453
		3454	cf::init_experience;
		3455	cf::init_anim;
		3456	cf::init_attackmess;
		3457	cf::init_dynamic;
		3458
		3459	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3460
		3461	# we must not ever block the main coroutine
		3462	local $Coro::idle = sub {
		3463	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3464	(async {
		3465	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3466	EV::loop EV::LOOP_ONESHOT;
		3467	})->prio (Coro::PRIO_MAX);
		3468	};
		3469
		3470	evthread_start IO::AIO::poll_fileno;
		3471
		3472	cf::sync_job {
		3473	reload_resources;
		3474	reload_config;
		3475	db_init;
		3476
		3477	cf::load_settings;
		3478	cf::load_materials;
		3479	cf::init_uuid;
		3480	cf::init_signals;
		3481	cf::init_commands;
		3482	cf::init_skills;
		3483
		3484	cf::init_beforeplay;
		3485
		3486	atomic;
		3487
		3488	load_extensions;
		3489
		3490	utime time, time, $RUNTIMEFILE;
		3491
		3492	# no (long-running) fork's whatsoever before this point(!)
		3493	use POSIX ();
		3494	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3495
		3496	(pop @POST_INIT)->(0) while @POST_INIT;
		3497	};
		3498
		3499	main_loop;
		3500	}
		3501
		3502	#############################################################################
		3503	# initialisation and cleanup
		3504
		3505	# install some emergency cleanup handlers
		3506	BEGIN {
		3507	our %SIGWATCHER = ();
		3508	for my $signal (qw(INT HUP TERM)) {
		3509	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3510	cf::cleanup "SIG$signal";
		3511	};
		3512	}
		3513	}
		3514
		3515	sub write_runtime_sync {
		3516	# first touch the runtime file to show we are still running:
		3517	# the fsync below can take a very very long time.
		3518
		3519	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3520
		3521	my $guard = cf::lock_acquire "write_runtime";
		3522
		3523	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3524	or return;
		3525
		3526	my $value = $cf::RUNTIME + 90 + 10;
		3527	# 10 is the runtime save interval, for a monotonic clock
		3528	# 60 allows for the watchdog to kill the server.
		3529
		3530	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3531	and return;
		3532
		3533	# always fsync - this file is important
		3534	aio_fsync $fh
		3535	and return;
		3536
		3537	# touch it again to show we are up-to-date
		3538	aio_utime $fh, undef, undef;
		3539
		3540	close $fh
		3541	or return;
		3542
		3543	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3544	and return;
		3545
		3546	warn "runtime file written.\n";
		3547
		3548	1
		3549	}
		3550
		3551	our $uuid_lock;
		3552	our $uuid_skip;
		3553
		3554	sub write_uuid_sync($) {
		3555	$uuid_skip ||= $_[0];
		3556
		3557	return if $uuid_lock;
		3558	local $uuid_lock = 1;
		3559
		3560	my $uuid = "$LOCALDIR/uuid";
		3561
		3562	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3563	or return;
		3564
		3565	my $value = uuid_seq uuid_cur;
		3566
		3567	unless ($value) {
		3568	warn "cowardly refusing to write zero uuid value!\n";
		3569	return;
		3570	}
		3571
		3572	my $value = uuid_str $value + $uuid_skip;
		3573	$uuid_skip = 0;
		3574
		3575	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3576	and return;
		3577
		3578	# always fsync - this file is important
		3579	aio_fsync $fh
		3580	and return;
		3581
		3582	close $fh
		3583	or return;
		3584
		3585	aio_rename "$uuid~", $uuid
		3586	and return;
		3587
		3588	warn "uuid file written ($value).\n";
		3589
		3590	1
		3591
		3592	}
		3593
		3594	sub write_uuid($$) {
		3595	my ($skip, $sync) = @_;
		3596
		3597	$sync ? write_uuid_sync $skip
		3598	: async { write_uuid_sync $skip };
		3599	}
		3600
		3601	sub emergency_save() {
		3602	my $freeze_guard = cf::freeze_mainloop;
		3603
		3604	warn "emergency_perl_save: enter\n";
		3605
		3606	cf::sync_job {
		3607	# this is a trade-off: we want to be very quick here, so
		3608	# save all maps without fsync, and later call a global sync
		3609	# (which in turn might be very very slow)
		3610	local $USE_FSYNC = 0;
		3611
		3612	# use a peculiar iteration method to avoid tripping on perl
		3613	# refcount bugs in for. also avoids problems with players
		3614	# and maps saved/destroyed asynchronously.
		3615	warn "emergency_perl_save: begin player save\n";
		3616	for my $login (keys %cf::PLAYER) {
		3617	my $pl = $cf::PLAYER{$login} or next;
		3618	$pl->valid or next;
		3619	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3620	$pl->save;
		3621	}
		3622	warn "emergency_perl_save: end player save\n";
		3623
		3624	warn "emergency_perl_save: begin map save\n";
		3625	for my $path (keys %cf::MAP) {
		3626	my $map = $cf::MAP{$path} or next;
		3627	$map->valid or next;
		3628	$map->save;
		3629	}
		3630	warn "emergency_perl_save: end map save\n";
		3631
		3632	warn "emergency_perl_save: begin database checkpoint\n";
		3633	BDB::db_env_txn_checkpoint $DB_ENV;
		3634	warn "emergency_perl_save: end database checkpoint\n";
		3635
		3636	warn "emergency_perl_save: begin write uuid\n";
		3637	write_uuid_sync 1;
		3638	warn "emergency_perl_save: end write uuid\n";
		3639	};
		3640
		3641	warn "emergency_perl_save: starting sync()\n";
		3642	IO::AIO::aio_sync sub {
		3643	warn "emergency_perl_save: finished sync()\n";
		3644	};
		3645
		3646	warn "emergency_perl_save: leave\n";
		3647	}
		3648
		3649	sub post_cleanup {
		3650	my ($make_core) = @_;
		3651
		3652	warn Carp::longmess "post_cleanup backtrace"
		3653	if $make_core;
		3654
		3655	my $fh = pidfile;
		3656	unlink $PIDFILE if <$fh> == $$;
		3657	}
		3658
		3659	# a safer delete_package, copied from Symbol
		3660	sub clear_package($) {
		3661	my $pkg = shift;
		3662
		3663	# expand to full symbol table name if needed
		3664	unless ($pkg =~ /^main::.*::$/) {
		3665	$pkg = "main$pkg" if $pkg =~ /^::/;
		3666	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3667	$pkg .= '::' unless $pkg =~ /::$/;
		3668	}
		3669
		3670	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3671	my $stem_symtab = *{$stem}{HASH};
		3672
		3673	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3674	or return;
		3675
		3676	# clear all symbols
		3677	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3678	for my $name (keys %$leaf_symtab) {
		3679	_gv_clear *{"$pkg$name"};
		3680	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3681	}
		3682	warn "cleared package $pkg\n";#d#
		3683	}
		3684
		3685	sub do_reload_perl() {
		3686	# can/must only be called in main
		3687	if ($Coro::current != $Coro::main) {
		3688	warn "can only reload from main coroutine";
		3689	return;
		3690	}
		3691
		3692	return if $RELOAD++;
		3693
		3694	my $t1 = EV::time;
		3695
		3696	while ($RELOAD) {
		3697	warn "reloading...";
		3698
		3699	warn "entering sync_job";
		3700
		3701	cf::sync_job {
		3702	cf::write_runtime_sync; # external watchdog should not bark
		3703	cf::emergency_save;
		3704	cf::write_runtime_sync; # external watchdog should not bark
		3705
		3706	warn "syncing database to disk";
		3707	BDB::db_env_txn_checkpoint $DB_ENV;
		3708
		3709	# if anything goes wrong in here, we should simply crash as we already saved
		3710
		3711	warn "flushing outstanding aio requests";
		3712	while (IO::AIO::nreqs || BDB::nreqs) {
		3713	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3714	}
		3715
		3716	warn "cancelling all extension coros";
		3717	$_->cancel for values %EXT_CORO;
		3718	%EXT_CORO = ();
		3719
		3720	warn "removing commands";
		3721	%COMMAND = ();
		3722
		3723	warn "removing ext/exti commands";
		3724	%EXTCMD = ();
		3725	%EXTICMD = ();
		3726
		3727	warn "unloading/nuking all extensions";
		3728	for my $pkg (@EXTS) {
		3729	warn "... unloading $pkg";
		3730
		3731	if (my $cb = $pkg->can ("unload")) {
		3732	eval {
		3733	$cb->($pkg);
		3734	1
		3735	} or warn "$pkg unloaded, but with errors: $@";
		3736	}
		3737
		3738	warn "... clearing $pkg";
		3739	clear_package $pkg;
		3740	}
		3741
		3742	warn "unloading all perl modules loaded from $LIBDIR";
		3743	while (my ($k, $v) = each %INC) {
		3744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3745
		3746	warn "... unloading $k";
		3747	delete $INC{$k};
		3748
		3749	$k =~ s/\.pm$//;
		3750	$k =~ s/\//::/g;
		3751
		3752	if (my $cb = $k->can ("unload_module")) {
		3753	$cb->();
		3754	}
		3755
		3756	clear_package $k;
		3757	}
		3758
		3759	warn "getting rid of safe::, as good as possible";
		3760	clear_package "safe::$_"
		3761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
		3762
		3763	warn "unloading cf.pm \"a bit\"";
		3764	delete $INC{"cf.pm"};
		3765	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
		3766
		3767	# don't, removes xs symbols, too,
		3768	# and global variables created in xs
		3769	#clear_package __PACKAGE__;
		3770
		3771	warn "unload completed, starting to reload now";
		3772
		3773	warn "reloading cf.pm";
		3774	require cf;
		3775	cf::_connect_to_perl_1;
		3776
		3777	warn "loading config and database again";
		3778	cf::reload_config;
		3779
		3780	warn "loading extensions";
		3781	cf::load_extensions;
		3782
		3783	if ($REATTACH_ON_RELOAD) {
		3784	warn "reattaching attachments to objects/players";
		3785	_global_reattach; # objects, sockets
		3786	warn "reattaching attachments to maps";
		3787	reattach $_ for values %MAP;
		3788	warn "reattaching attachments to players";
		3789	reattach $_ for values %PLAYER;
		3790	}
		3791
		3792	warn "running post_init jobs";
		3793	(pop @POST_INIT)->(1) while @POST_INIT;
		3794
		3795	warn "leaving sync_job";
		3796
		3797	1
		3798	} or do {
		3799	warn $@;
		3800	cf::cleanup "error while reloading, exiting.";
		3801	};
		3802
		3803	warn "reloaded";
		3804	--$RELOAD;
		3805	}
		3806
		3807	$t1 = EV::time - $t1;
		3808	warn "reload completed in ${t1}s\n";
		3809	};
		3810
		3811	our $RELOAD_WATCHER; # used only during reload
		3812
		3813	sub reload_perl() {
		3814	# doing reload synchronously and two reloads happen back-to-back,
		3815	# coro crashes during coro_state_free->destroy here.
		3816
		3817	$RELOAD_WATCHER ||= cf::async {
		3818	Coro::AIO::aio_wait cache_extensions;
		3819
		3820	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3821	do_reload_perl;
		3822	undef $RELOAD_WATCHER;
		3823	};
		3824	};
		3825	}
		3826
		3827	register_command "reload" => sub {
		3828	my ($who, $arg) = @_;
		3829
		3830	if ($who->flag (FLAG_WIZ)) {
		3831	$who->message ("reloading server.");
		3832	async {
		3833	$Coro::current->{desc} = "perl_reload";
		3834	reload_perl;
		3835	};
		3836	}
		3837	};
		3838
		3839	unshift @INC, $LIBDIR;
		3840
		3841	my $bug_warning = 0;
		3842
		3843	our @WAIT_FOR_TICK;
		3844	our @WAIT_FOR_TICK_BEGIN;
		3845
		3846	sub wait_for_tick {
		3847	return if tick_inhibit || $Coro::current == $Coro::main;
		3848
		3849	my $signal = new Coro::Signal;
		3850	push @WAIT_FOR_TICK, $signal;
		3851	$signal->wait;
		3852	}
		3853
		3854	sub wait_for_tick_begin {
		3855	return if tick_inhibit || $Coro::current == $Coro::main;
		3856
		3857	my $signal = new Coro::Signal;
		3858	push @WAIT_FOR_TICK_BEGIN, $signal;
		3859	$signal->wait;
		3860	}
		3861
		3862	sub tick {
		3863	if ($Coro::current != $Coro::main) {
		3864	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3865	unless ++$bug_warning > 10;
		3866	return;
		3867	}
		3868
		3869	cf::server_tick; # one server iteration
		3870
		3871	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3872	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3873	Coro::async_pool {
		3874	$Coro::current->{desc} = "runtime saver";
		3875	write_runtime_sync
		3876	or warn "ERROR: unable to write runtime file: $!";
		3877	};
		3878	}
		3879
		3880	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3881	$sig->send;
		3882	}
		3883	while (my $sig = shift @WAIT_FOR_TICK) {
		3884	$sig->send;
		3885	}
		3886
		3887	$LOAD = ($NOW - $TICK_START) / $TICK;
		3888	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3889
		3890	if (0) {
		3891	if ($NEXT_TICK) {
		3892	my $jitter = $TICK_START - $NEXT_TICK;
		3893	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3894	warn "jitter $JITTER\n";#d#
		3895	}
		3896	}
		3897	}
1193		3898
1194	{	3899	{
1195	my $path = cf::localdir . "/database.pst";	3900	# configure BDB
1196		3901
1197	sub db_load() {	3902	BDB::min_parallel 8;
1198	warn "loading database $path\n";#d# remove later	3903	BDB::max_poll_reqs $TICK * 0.1;
1199	$DB = stat $path ? Storable::retrieve $path : { };	3904	$AnyEvent::BDB::WATCHER->priority (1);
1200	}
1201		3905
1202	my $pid;	3906	unless ($DB_ENV) {
		3907	$DB_ENV = BDB::db_env_create;
		3908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3909	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3910	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3911	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3912	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
1203		3913
1204	sub db_save() {	3914	cf::sync_job {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;
1211	cf::_exit 0 if defined $pid;
1212	}
1213	}
1214
1215	my $dirty;
1216
1217	sub db_sync() {
1218	db_save if $dirty;
1219	undef $dirty;
1220	}
1221
1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1223	db_sync;
1224	});
1225
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}
1230
1231	sub db_get($;$) {
1232	@_ >= 2
1233	? $DB->{$_[0]}{$_[1]}
1234	: ($DB->{$_[0]} ||= { })
1235	}
1236
1237	sub db_put($$;$) {
1238	if (@_ >= 3) {
1239	$DB->{$_[0]}{$_[1]} = $_[2];
1240	} else {	3915	eval {
1241	$DB->{$_[0]} = $_[1];	3916	BDB::db_env_open
1242	}	3917	$DB_ENV,
1243	db_dirty;	3918	$BDBDIR,
1244	}	3919	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3920	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3921	0666;
1245		3922
1246	cf::global->attach (	3923	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
1247	prio => 10000,
1248	on_cleanup => sub {
1249	db_sync;
1250	},
1251	);
1252	}
1253
1254	#############################################################################
1255	# the server's main()
1256
1257	sub cfg_load {
1258	open my $fh, "<:utf8", cf::confdir . "/config"
1259	or return;
1260
1261	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;
1263	}
1264
1265	sub main {
1266	cfg_load;
1267	db_load;
1268	load_extensions;
1269	Event::loop;
1270	}
1271
1272	#############################################################################
1273	# initialisation
1274
1275	sub _perl_reload() {
1276	warn "reloading...";
1277
1278	eval {
1279	local $FREEZE = 1;
1280
1281	cf::emergency_save;
1282
1283	# cancel all watchers
1284	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}
1287
1288	# cancel all extension coros
1289	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();
1291
1292	# unload all extensions
1293	for (@exts) {
1294	warn "unloading <$_>";
1295	unload_extension $_;
1296	}
1297
1298	# unload all modules loaded from $LIBDIR
1299	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301
1302	warn "removing <$k>";
1303	delete $INC{$k};
1304
1305	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;
1307
1308	if (my $cb = $k->can ("unload_module")) {
1309	$cb->();
1310	}	3924	};
1311		3925
1312	Symbol::delete_package $k;	3926	cf::cleanup "db_env_open(db): $@" if $@;
1313	}	3927	};
		3928	}
1314		3929
1315	# sync database to disk	3930	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
1316	cf::db_sync;	3931	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible
1320	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"
1327	delete $INC{"cf.pm"};
1328
1329	# don't, removes xs symbols, too,
1330	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;
1332
1333	# reload cf.pm
1334	warn "reloading cf.pm";
1335	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337
1338	# load config and database again
1339	cf::cfg_load;
1340	cf::db_load;
1341
1342	# load extensions
1343	warn "load extensions";
1344	cf::load_extensions;
1345
1346	# reattach attachments to objects
1347	warn "reattach";
1348	_global_reattach;
1349	};	3932	};
1350	warn $@ if $@;	3933	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
1351		3934	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
1352	warn "reloaded";
1353	};
1354
1355	sub perl_reload() {
1356	_perl_reload;
1357	}
1358
1359	register "<global>", __PACKAGE__;
1360
1361	register_command "perl-reload" => sub {
1362	my ($who, $arg) = @_;
1363
1364	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");
1366	_perl_reload;
1367	}	3935	};
1368	};	3936	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3937	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3938	};
		3939	}
1369		3940
1370	unshift @INC, $LIBDIR;	3941	{
		3942	# configure IO::AIO
1371		3943
1372	$TICK_WATCHER = Event->timer (	3944	IO::AIO::min_parallel 8;
1373	reentrant => 0,	3945	IO::AIO::max_poll_time $TICK * 0.1;
1374	prio => 0,	3946	undef $AnyEvent::AIO::WATCHER;
1375	at => $NEXT_TICK || $TICK,	3947	}
1376	data => WF_AUTOCANCEL,	3948
1377	cb => sub {	3949	my $_log_backtrace;
1378	unless ($FREEZE) {	3950
1379	cf::server_tick; # one server iteration	3951	sub _log_backtrace {
1380	$RUNTIME += $TICK;	3952	my ($msg, @addr) = @_;
		3953
		3954	$msg =~ s/\n//;
		3955
		3956	# limit the # of concurrent backtraces
		3957	if ($_log_backtrace < 2) {
		3958	++$_log_backtrace;
		3959	my $perl_bt = Carp::longmess $msg;
		3960	async {
		3961	$Coro::current->{desc} = "abt $msg";
		3962
		3963	my @bt = fork_call {
		3964	@addr = map { sprintf "%x", $_ } @addr;
		3965	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3966	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3967	or die "addr2line: $!";
		3968
		3969	my @funcs;
		3970	my @res = <$fh>;
		3971	chomp for @res;
		3972	while (@res) {
		3973	my ($func, $line) = splice @res, 0, 2, ();
		3974	push @funcs, "[$func] $line";
		3975	}
		3976
		3977	@funcs
		3978	};
		3979
		3980	LOG llevInfo, "[ABT] $perl_bt\n";
		3981	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3982	LOG llevInfo, "[ABT] $_\n" for @bt;
		3983	--$_log_backtrace;
1381	}	3984	};
1382		3985	} else {
1383	$NEXT_TICK += $TICK;	3986	LOG llevInfo, "[ABT] $msg\n";
1384		3987	LOG llevInfo, "[ABT] [suppressed]\n";
1385	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1387
1388	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;
1390	},	3988	}
1391	);	3989	}
1392		3990
1393	IO::AIO::max_poll_time $TICK * 0.2;	3991	# load additional modules
		3992	require "cf/$_.pm" for @EXTRA_MODULES;
		3993	cf::_connect_to_perl_2;
1394		3994
1395	Event->io (fd => IO::AIO::poll_fileno,	3995	END { cf::emergency_save }
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,
1399	cb => \&IO::AIO::poll_cb);
1400
1401	# we must not ever block the main coroutine
1402	$Coro::idle = sub {
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
1404	warn "FATAL: Coro::idle was called, major BUG\n";
1405	(Coro::unblock_sub {
1406	Event::one_event;
1407	})->();
1408	};
1409		3996
1410	1	3997	1
1411		3998

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