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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.490 by root, Sat Oct 24 06:16:40 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;
20	use Digest::MD5;	57	use Digest::MD5;
21	use Fcntl;	58	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	59	use YAML::XS ();
		60	use IO::AIO ();
24	use Time::HiRes;	61	use Time::HiRes;
		62	use Compress::LZF;
		63	use Digest::MD5 ();
25		64
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	AnyEvent::detect;
27		66
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	67	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	68	#
		69	$Storable::canonical = 1; # reduce rsync transfers
		70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		71
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		77
		78	# strictly for debugging
		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		80
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		114	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	115	our $NEXT_TICK;
45	our $NOW;	116	our $USE_FSYNC = 1; # use fsync to write maps - default on
		117
		118	our $BDB_DEADLOCK_WATCHER;
		119	our $BDB_CHECKPOINT_WATCHER;
		120	our $BDB_TRICKLE_WATCHER;
		121	our $DB_ENV;
		122
		123	our @EXTRA_MODULES = qw(pod match mapscript);
46		124
47	our %CFG;	125	our %CFG;
48		126
49	our $UPTIME; $UPTIME ||= time;	127	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	128	our $RUNTIME;
		129	our $NOW;
51		130
52	our %MAP; # all maps	131	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	132	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	133	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	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 $REALLY_UNLOOP; # never set to true, please :)
56		147
57	binmode STDOUT;	148	binmode STDOUT;
58	binmode STDERR;	149	binmode STDERR;
59		150
60	# read virtual server time, if available	151	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	152	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	153	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	154	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	155	$RUNTIME = <$fh> + 0.;
65	}	156	}
66		157
67	mkdir cf::localdir;	158	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		159
73	# a special map that is always available	160	mkdir $_
74	our $LINK_MAP;	161	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		162
75	our $EMERGENCY_POSITION;	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::"} };
76		177
77	#############################################################################	178	#############################################################################
78		179
79	=head2 GLOBAL VARIABLES	180	=head2 GLOBAL VARIABLES
80		181
…		…
87	=item $cf::RUNTIME	188	=item $cf::RUNTIME
88		189
89	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
90	every server tick.	191	every server tick.
91		192
92	=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
93		196
94	The perl library directory, where extensions and cf-specific modules can	197	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		201
97	=item $cf::NOW	202	=item $cf::NOW
98		203
99	The time of the last (current) server tick.	204	The time of the last (current) server tick.
100		205
101	=item $cf::TICK	206	=item $cf::TICK
102		207
103	The interval between server ticks, in seconds.	208	The interval between server ticks, in seconds.
104		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
105	=item %cf::CFG	220	=item %cf::CFG
106		221
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	222	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	223	from wherever your confdir points to.
109		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
110	=back	243	=back
111		244
112	=cut	245	=cut
113		246
114	BEGIN {	247	$Coro::State::WARNHOOK = sub {
115	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	248	my $msg = join "", @_;
117	utf8::encode $msg;
118		249
119	$msg .= "\n"	250	$msg .= "\n"
120	unless $msg =~ /\n$/;	251	unless $msg =~ /\n$/;
121		252
		253	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		254
122	LOG llevError, "cfperl: $msg";	255	LOG llevError, $msg;
123	};	256	};
124	}	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	};
125		271
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	272	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	273	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	274	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	275	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		279
133	# 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
134	# within the Safe compartment.	281	# within the Safe compartment.
135	for my $pkg (qw(	282	for my $pkg (qw(
136	cf::global cf::attachable	283	cf::global cf::attachable
137	cf::object cf::object::player	284	cf::object cf::object::player
138	cf::client cf::player	285	cf::client cf::player
139	cf::arch cf::living	286	cf::arch cf::living
		287	cf::map cf::mapspace
140	cf::map cf::party cf::region	288	cf::party cf::region
141	)) {	289	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	290	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	291	}
145		292
146	$Event::DIED = sub {	293	$EV::DIED = sub {
147	warn "error in event callback: @_";	294	warn "error in event callback: @_";
148	};	295	};
149		296
150	my %ext_pkg;	297	#############################################################################
151	my @exts;
152	my @hook;
153		298
154	=head2 UTILITY FUNCTIONS	299	=head2 UTILITY FUNCTIONS
155		300
156	=over 4	301	=over 4
157		302
158	=cut	303	=item dumpval $ref
159		304
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	305	=cut
161		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
162	=item $ref = cf::from_json $json	326	=item $ref = cf::decode_json $json
163		327
164	Converts a JSON string into the corresponding perl data structure.	328	Converts a JSON string into the corresponding perl data structure.
165		329
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	330	=item $json = cf::encode_json $ref
174		331
175	Converts a perl data structure into its JSON representation.	332	Converts a perl data structure into its JSON representation.
176		333
177	=cut	334	=cut
178		335
179	sub to_json($) {	336	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		337
184	=item my $guard = cf::guard { BLOCK }	338	sub encode_json($) { $json_coder->encode ($_[0]) }
		339	sub decode_json($) { $json_coder->decode ($_[0]) }
185		340
186	Run the given callback when the guard object gets destroyed (useful for	341	=item cf::post_init { BLOCK }
187	coroutine cancellations).
188		342
189	You can call C<< ->cancel >> on the guard object to stop the block from	343	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
190	being executed.	344	but I<before> the server starts ticking again.
191		345
192	=cut	346	The cdoeblock will have a single boolean argument to indicate whether this
		347	is a reload or not.
193		348
194	sub guard(&) {	349	=cut
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197		350
198	sub cf::guard::cancel {	351	sub post_init(&) {
199	${$_[0]} = sub { };	352	push @POST_INIT, shift;
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}	353	}
205		354
206	=item cf::lock_wait $string	355	=item cf::lock_wait $string
207		356
208	Wait until the given lock is available. See cf::lock_acquire.	357	Wait until the given lock is available. See cf::lock_acquire.
209		358
210	=item my $lock = cf::lock_acquire $string	359	=item my $lock = cf::lock_acquire $string
211		360
212	Wait until the given lock is available and then acquires it and returns	361	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	362	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	363	for example when the coroutine gets canceled), the lock is automatically
215	returned.	364	returned.
216		365
		366	Locks are *not* recursive, locking from the same coro twice results in a
		367	deadlocked coro.
		368
217	Lock names should begin with a unique identifier (for example, cf::map::find	369	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	370	uses map_find and cf::map::load uses map_load).
219		371
220	=cut	372	=item $locked = cf::lock_active $string
221		373
222	our %LOCK;	374	Return true if the lock is currently active, i.e. somebody has locked it.
		375
		376	=cut
		377
		378	our $LOCKS = new Coro::SemaphoreSet;
223		379
224	sub lock_wait($) {	380	sub lock_wait($) {
225	my ($key) = @_;	381	$LOCKS->wait ($_[0]);
226
227	# wait for lock, if any
228	while ($LOCK{$key}) {
229	push @{ $LOCK{$key} }, $Coro::current;
230	Coro::schedule;
231	}
232	}	382	}
233		383
234	sub lock_acquire($) {	384	sub lock_acquire($) {
235	my ($key) = @_;	385	$LOCKS->guard ($_[0])
		386	}
236		387
237	# wait, to be sure we are not locked	388	sub lock_active($) {
238	lock_wait $key;	389	$LOCKS->count ($_[0]) < 1
		390	}
239		391
240	$LOCK{$key} = [];	392	sub freeze_mainloop {
		393	tick_inhibit_inc;
241		394
242	cf::guard {	395	&Guard::guard (\&tick_inhibit_dec);
243	# wake up all waiters, to be on the safe side	396	}
244	$_->ready for @{ delete $LOCK{$key} };	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($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
245	}	456	}
		457	};
		458
		459	sub get_slot($;$$) {
		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	$sig->wait;
246	}	471	}
247		472
248	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
249		474
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	475	Currently the same as Coro::async_pool, meaning you cannot use
251	error instead of exiting the server in case of a problem.	476	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		477	thing you are allowed to do is call C<prio> on it.
252		478
253	=cut	479	=cut
254		480
255	sub async(&) {	481	BEGIN { *async = \&Coro::async_pool }
256	my ($cb) = @_;
257
258	Coro::async {
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}
263
264	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;
266
267	my $guard = guard { $TICK_WATCHER->start };
268	$TICK_WATCHER->stop;
269	$guard
270	}
271		482
272	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
273		484
274	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
277		489
278	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
281	fast or be very important.	493	fast or be very important.
…		…
284		496
285	sub sync_job(&) {	497	sub sync_job(&) {
286	my ($job) = @_;	498	my ($job) = @_;
287		499
288	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
289	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
291		505
292	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
293	# (but this is cancel-safe)	507
294	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
295		509
296	my $busy = 1;	510	my $busy = 1;
297	my @res;	511	my @res;
298		512
299	(Coro::async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
300	@res = eval { $job->() };	515	@res = eval { $job->() };
301	warn $@ if $@;	516	warn $@ if $@;
302	undef $busy;	517	undef $busy;
303	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
304		519
305	while ($busy) {	520	while ($busy) {
		521	if (Coro::nready) {
306	Coro::cede_notself;	522	Coro::cede_notself;
307	Event::one_event unless Coro::nready;	523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
308	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
309		531
310	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
311	} else {	533	} else {
312	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
313		535
314	$job->()	536	$job->()
315	}	537	}
316	}	538	}
317		539
318	=item $coro = cf::coro { BLOCK }	540	=item $coro = cf::async_ext { BLOCK }
319		541
320	Creates and returns a new coro. This coro is automcatially being canceled	542	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	543	extension calling this is being unloaded.
322		544
323	=cut	545	=cut
324		546
325	sub coro(&) {	547	sub async_ext(&) {
326	my $cb = shift;	548	my $cb = shift;
327		549
328	my $coro = &cf::async ($cb);	550	my $coro = &Coro::async ($cb);
329		551
330	$coro->on_destroy (sub {	552	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	553	delete $EXT_CORO{$coro+0};
332	});	554	});
333	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
334		556
335	$coro	557	$coro
336	}	558	}
337		559
338	sub write_runtime {	560	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		561
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
342	or return;	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.
343		566
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	567	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		568
348	aio_fsync $fh	569	sub fork_call(&@) {
349	and return;	570	my ($cb, @args) = @_;
350		571
351	close $fh	572	# we seemingly have to make a local copy of the whole thing,
352	or return;	573	# otherwise perl prematurely frees the stuff :/
		574	# TODO: investigate and fix (likely this will be rather laborious)
353		575
354	aio_rename "$runtime~", $runtime	576	my @res = Coro::Util::fork_eval {
355	and return;	577	reset_signals;
		578	&$cb
		579	}, @args;
356		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($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
357	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		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 => $type });
358	}	747	}
359		748
360	=back	749	=back
361		750
362	=cut	751	=cut
363		752
364	#############################################################################	753	#############################################################################
365		754
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483
484	#############################################################################
485
486	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
487		756
488	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
489	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")
490	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
491		760
492	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>
493	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
494	crossfire+).	763	Deliantra).
495		764
496	=over 4	765	=over 4
497		766
498	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
499		768
…		…
543	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
544		813
545	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
546	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
547		816
548	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
549	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.
550		819
551	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
552		821
553	=over 4	822	=over 4
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	882	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	883	our @CB_MAP = ();
615		884
616	my %attachment;	885	my %attachment;
617		886
		887	sub cf::attachable::thawer_merge {
		888	# simply override everything except _meta
		889	local $_[0]{_meta};
		890	%{$_[0]} = %{$_[1]};
		891	}
		892
618	sub _attach_cb($$$$) {	893	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	894	my ($registry, $event, $prio, $cb) = @_;
620		895
621	use sort 'stable';	896	use sort 'stable';
622		897
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
657		932
658	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		937
663	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	939	my $pkg = shift @arg;
665		940
666	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
696	}	971	}
697		972
698	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
699	} else {	974	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	976	}
702		977
703	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
704	}	979	}
705		980
…		…
707	if (ref $_[0]) {	982	if (ref $_[0]) {
708	_object_attach @_;	983	_object_attach @_;
709	} else {	984	} else {
710	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
711	}	986	}
		987	_recalc_want;
712	};	988	};
713		989
714	# all those should be optimised	990	# all those should be optimised
715	sub cf::attachable::detach {	991	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
720	reattach ($obj);	996	reattach ($obj);
721	} else {	997	} else {
722	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
723	}	999	}
		1000	_recalc_want;
724	};	1001	};
725		1002
726	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
728		1005
…		…
743	";	1020	";
744	die if $@;	1021	die if $@;
745	}	1022	}
746		1023
747	our $override;	1024	our $override;
748	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?
749		1026
750	sub override {	1027	sub override {
751	$override = 1;	1028	$override = 1;
752	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
753	}	1030	}
754		1031
755	sub do_invoke {	1032	sub do_invoke {
756	my $event = shift;	1033	my $event = shift;
757	my $callbacks = shift;	1034	my $callbacks = shift;
758		1035
759	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
760		1037
761	local $override;	1038	local $override;
762		1039
763	for (@$callbacks) {	1040	for (@$callbacks) {
764	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
773	}	1050	}
774		1051
775	0	1052	0
776	}	1053	}
777		1054
778	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
779		1056
780	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
781		1058
782	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
783		1060
784	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
785	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
786	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
787		1064
788	=back	1065	=back
789		1066
790	=cut	1067	=cut
791		1068
792	#############################################################################	1069	#############################################################################
793	# 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	}
794		1113
795	sub reattach {	1114	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
797	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
798		1120
799	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
800		1122
801	@$registry = ();	1123	@$registry = ();
802		1124
…		…
817	cf::attachable->attach (	1139	cf::attachable->attach (
818	prio => -1000000,	1140	prio => -1000000,
819	on_instantiate => sub {	1141	on_instantiate => sub {
820	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
821		1143
822	$data = from_json $data;	1144	$data = decode_json $data;
823		1145
824	for (@$data) {	1146	for (@$data) {
825	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
826		1148
827	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
843	sub object_freezer_save {	1165	sub object_freezer_save {
844	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
845		1167
846	sync_job {	1168	sync_job {
847	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
848	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
849	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
850		1173
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
853	aio_write $fh, 0, (length $$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;
854	aio_fsync $fh;	1179	aio_fsync $fh;
		1180	}
855	close $fh;	1181	aio_close $fh;
856		1182
857	if (@$objs) {	1183	if (@$objs) {
858	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) {
859	chmod SAVE_MODE, $fh;	1185	aio_chmod $fh, SAVE_MODE;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	1186	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
861	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;
862	aio_fsync $fh;	1190	aio_fsync $fh;
		1191	}
863	close $fh;	1192	aio_close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	1193	aio_rename "$filename.pst~", "$filename.pst";
865	}	1194	}
866	} else {	1195	} else {
867	aio_unlink "$filename.pst";	1196	aio_unlink "$filename.pst";
868	}	1197	}
869		1198
870	aio_rename "$filename~", $filename;	1199	aio_rename "$filename~", $filename;
		1200
		1201	$filename =~ s%/[^/]+$%%;
		1202	aio_pathsync $filename if $cf::USE_FSYNC;
871	} else {	1203	} else {
872	warn "FATAL: $filename~: $!\n";	1204	warn "unable to save objects: $filename~: $!\n";
873	}	1205	}
874	} else {	1206	} else {
875	aio_unlink $filename;	1207	aio_unlink $filename;
876	aio_unlink "$filename.pst";	1208	aio_unlink "$filename.pst";
877	}	1209	}
878	}	1210	};
879	}	1211	}
880		1212
881	sub object_freezer_as_string {	1213	sub object_freezer_as_string {
882	my ($rdata, $objs) = @_;	1214	my ($rdata, $objs) = @_;
883		1215
…		…
895	or return;	1227	or return;
896		1228
897	unless (aio_stat "$filename.pst") {	1229	unless (aio_stat "$filename.pst") {
898	(aio_load "$filename.pst", $av) >= 0	1230	(aio_load "$filename.pst", $av) >= 0
899	or return;	1231	or return;
		1232
900	$av = eval { (Storable::thaw $av)->{objs} };	1233	my $st = eval { Coro::Storable::thaw $av };
		1234	$av = $st->{objs};
901	}	1235	}
902		1236
		1237	utf8::decode (my $decname = $filename);
903	warn sprintf "loading %s (%d)\n",	1238	warn sprintf "loading %s (%d,%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1239	$decname, length $data, scalar @{$av || []};
		1240
905	return ($data, $av);	1241	($data, $av)
906	}	1242	}
		1243
		1244	=head2 COMMAND CALLBACKS
		1245
		1246	=over 4
		1247
		1248	=cut
907		1249
908	#############################################################################	1250	#############################################################################
909	# command handling &c	1251	# command handling &c
910		1252
911	=item cf::register_command $name => \&callback($ob,$args);	1253	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1266	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1267	}
926		1268
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1269	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1270
929	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.
930		1276
931	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
932	called.	1278	called.
933		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
934	=cut	1291	=cut
935		1292
936	sub register_extcmd {	1293	sub register_extcmd {
937	my ($name, $cb) = @_;	1294	my ($name, $cb) = @_;
938		1295
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1296	$EXTCMD{$name} = $cb;
943	}	1297	}
		1298
		1299	sub register_exticmd {
		1300	my ($name, $cb) = @_;
		1301
		1302	$EXTICMD{$name} = $cb;
		1303	}
		1304
		1305	use File::Glob ();
944		1306
945	cf::player->attach (	1307	cf::player->attach (
946	on_command => sub {	1308	on_command => sub {
947	my ($pl, $name, $params) = @_;	1309	my ($pl, $name, $params) = @_;
948		1310
…		…
956	cf::override;	1318	cf::override;
957	},	1319	},
958	on_extcmd => sub {	1320	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1321	my ($pl, $buf) = @_;
960		1322
961	my $msg = eval { from_json $buf };	1323	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1324
963	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
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1333	if (my $cb = $EXTCMD{$type}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1334	@reply = $cb->($pl, @payload);
966	$pl->ext_reply ($msg->{msgid}, %reply);
967	}
968	}	1335	}
		1336
		1337	$pl->ext_reply ($reply, @reply)
		1338	if $reply;
		1339
969	} else {	1340	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1341	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
971	}	1342	}
972		1343
973	cf::override;	1344	cf::override;
974	},	1345	},
975	);	1346	);
976		1347
977	sub register {	1348	# "readahead" all extensions
978	my ($base, $pkg) = @_;	1349	sub cache_extensions {
		1350	my $grp = IO::AIO::aio_group;
979		1351
980	#TODO	1352	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
981	}	1353	for (grep /\.ext$/, @{$_[0]}) {
		1354	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1355	}
		1356	};
982		1357
		1358	$grp
		1359	}
		1360
983	sub load_extension {	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($) {
984	my ($path) = @_;	1716	my ($path) = @_;
985		1717
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1718	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1719
992	warn "loading '$path' into '$pkg'\n";	1720	for my $region (list) {
993		1721	if ($region->{match} && $path =~ $region->{match}) {
994	open my $fh, "<:utf8", $path	1722	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1723	if $region->specificity > $specificity;
996		1724	}
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	1725	}
1026		1726
1027	# remove commands	1727	$match
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}
1052
1053	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;
1056	eval {
1057	load_extension $ext;
1058	1
1059	} or warn "$ext not loaded: $@";
1060	}
1061	}
1062
1063	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100
1101	=head2 CORE EXTENSIONS
1102
1103	Functions and methods that extend core crossfire objects.
1104
1105	=head3 cf::player
1106
1107	=over 4
1108
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut
1114
1115	sub cf::player::exists($) {
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121
1122	Sends an ext reply to the player.
1123
1124	=cut
1125
1126	sub cf::player::ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;
1128
1129	$msg{msgid} = $id;
1130
1131	$self->send ("ext " . to_json \%msg);
1132	}	1728	}
1133		1729
1134	=back	1730	=back
1135
1136		1731
1137	=head3 cf::map	1732	=head3 cf::map
1138		1733
1139	=over 4	1734	=over 4
1140		1735
…		…
1143	package cf::map;	1738	package cf::map;
1144		1739
1145	use Fcntl;	1740	use Fcntl;
1146	use Coro::AIO;	1741	use Coro::AIO;
1147		1742
		1743	use overload
		1744	'""' => \&as_string,
		1745	fallback => 1;
		1746
1148	our $MAX_RESET = 3600;	1747	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1748	our $DEFAULT_RESET = 3000;
1150		1749
1151	sub generate_random_map {	1750	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1751	my ($self, $rmp) = @_;
		1752
		1753	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1153		1754
1154	# mit "rum" bekleckern, nicht	1755	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1756	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1757	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1758	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1759	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1760	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1761	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1762	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1763	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1764	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1765	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1766	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1767	(cf::region::find $rmp->{region}), $rmp->{custom}
		1768	)
1168	}	1769	}
1169		1770
1170	# and all this just because we cannot iterate over	1771	=item cf::map->register ($regex, $prio)
1171	# all maps in C++...
1172	sub change_all_map_light {
1173	my ($change) = @_;
1174		1772
1175	$_->change_map_light ($change)	1773	Register a handler for the map path matching the given regex at the
1176	for grep $_->outdoor, values %cf::MAP;	1774	givne priority (higher is better, built-in handlers have priority 0, the
1177	}	1775	default).
1178		1776
1179	sub try_load_header($) {	1777	=cut
		1778
		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	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1791
		1792	sub thawer_merge {
		1793	my ($self, $merge) = @_;
		1794
		1795	# we have to keep some variables in memory intact
		1796	local $self->{path};
		1797	local $self->{load_path};
		1798
		1799	$self->SUPER::thawer_merge ($merge);
		1800	}
		1801
		1802	sub normalise {
1180	my ($path) = @_;	1803	my ($path, $base) = @_;
		1804
		1805	$path = "$path"; # make sure its a string
		1806
		1807	$path =~ s/\.map$//;
		1808
		1809	# map plan:
		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
		1817
		1818	$path =~ s/$PATH_SEP/\//go;
		1819
		1820	# treat it as relative path if it starts with
		1821	# something that looks reasonable
		1822	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1823	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1824
		1825	$base =~ s{[^/]+/?$}{};
		1826	$path = "$base/$path";
		1827	}
		1828
		1829	for ($path) {
		1830	redo if s{//}{/};
		1831	redo if s{/\.?/}{/};
		1832	redo if s{/[^/]+/\.\./}{/};
		1833	}
		1834
		1835	$path
		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) = @_;
1181		1916
1182	utf8::encode $path;	1917	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1918	my $f = new_from_file cf::object::thawer $path
1184	or return;	1919	or return;
1185		1920
1186	my $map = cf::map::new	1921	$self->_load_header ($f)
1187	or return;	1922	or return;
1188		1923
1189	$map->load_header ($path)	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;
		1968	} else {
		1969	$self->load_header_orig
1190	or return;	1970	or return;
		1971	$self->prepare_orig;
		1972	}
1191		1973
1192	$map->{load_path} = $path;	1974	$self->{deny_reset} = 1
		1975	if $self->no_reset;
1193		1976
1194	$map	1977	$self->default_region (cf::region::find_by_path $self->{path})
		1978	unless $self->default_region;
		1979
		1980	1
1195	}	1981	}
1196		1982
1197	sub find;	1983	sub find;
1198	sub find {	1984	sub find {
1199	my ($path, $origin) = @_;	1985	my ($path, $origin) = @_;
1200		1986
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1987	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1988
1206	cf::lock_wait "map_find:$key";	1989	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1207
1208	$cf::MAP{$key} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1990	my $guard2 = cf::lock_acquire "map_find:$path";
1210		1991
1211	# do it the slow way	1992	$cf::MAP{$path} || do {
1212	my $map = try_load_header $path->save_path;	1993	my $map = new_from_path cf::map $path
1213
1214	Coro::cede;
1215
1216	if ($map) {
1217	$map->last_access ((delete $map->{last_access})
1218	|| $cf::RUNTIME); #d#
1219	# safety
1220	$map->{instantiate_time} = $cf::RUNTIME
1221	if $map->{instantiate_time} > $cf::RUNTIME;
1222	} else {
1223	if (my $rmp = $path->random_map_params) {
1224	$map = generate_random_map $key, $rmp;
1225	} else {
1226	$map = try_load_header $path->load_path;
1227	}
1228
1229	$map or return;	1994	or return;
1230		1995
1231	$map->{load_original} = 1;
1232	$map->{instantiate_time} = $cf::RUNTIME;
1233	$map->last_access ($cf::RUNTIME);
1234	$map->instantiate;
1235
1236	# per-player maps become, after loading, normal maps
1237	$map->per_player (0) if $path->{user_rel};
1238	}
1239
1240	$map->path ($key);
1241	$map->{path} = $path;
1242	$map->{last_save} = $cf::RUNTIME;	1996	$map->{last_save} = $cf::RUNTIME;
1243		1997
1244	Coro::cede;	1998	$map->load_header
		1999	or return;
1245		2000
1246	if ($map->should_reset) {	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;
1247	$map->reset;	2006	$map->reset;
1248	undef $guard;
1249	$map = find $path	2007	return find $path;
1250	or return;
1251	}	2008	}
1252		2009
1253	$cf::MAP{$key} = $map	2010	$cf::MAP{$path} = $map
1254	}	2011	}
1255	}	2012	}
		2013
		2014	sub pre_load { }
		2015	sub post_load { }
1256		2016
1257	sub load {	2017	sub load {
1258	my ($self) = @_;	2018	my ($self) = @_;
1259		2019
		2020	local $self->{deny_reset} = 1; # loading can take a long time
		2021
1260	my $path = $self->{path};	2022	my $path = $self->{path};
		2023
		2024	{
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2025	my $guard = cf::lock_acquire "map_data:$path";
1262		2026
		2027	return unless $self->valid;
1263	return if $self->in_memory != cf::MAP_SWAPPED;	2028	return unless $self->in_memory == cf::MAP_SWAPPED;
1264		2029
1265	$self->in_memory (cf::MAP_LOADING);	2030	$self->in_memory (cf::MAP_LOADING);
1266		2031
1267	$self->alloc;	2032	$self->alloc;
1268	$self->load_objects ($self->{load_path}, 1)	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)
1269	or return;	2040	or return;
1270		2041
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2042	$self->post_load_original
1272	if delete $self->{load_original};	2043	if delete $self->{load_original};
1273		2044
1274	if (my $uniq = $path->uniq_path) {	2045	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	2046	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	2047	unless (aio_stat $uniq) {
		2048	if (my $f = new_from_file cf::object::thawer $uniq) {
1277	$self->clear_unique_items;	2049	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	2050	$self->_load_objects ($f);
		2051	$f->resolve_delayed_derefs;
		2052	}
1279	}	2053	}
1280	}	2054	}
1281		2055
1282	Coro::cede;	2056	$f->resolve_delayed_derefs;
1283		2057
		2058	cf::cede_to_tick;
1284	# now do the right thing for maps	2059	# now do the right thing for maps
1285	$self->link_multipart_objects;	2060	$self->link_multipart_objects;
1286
1287	if ($self->{path}->is_style_map) {
1288	$self->{deny_save} = 1;
1289	$self->{deny_reset} = 1;
1290	} else {
1291	$self->fix_auto_apply;
1292	$self->decay_objects;
1293	$self->update_buttons;
1294	$self->set_darkness_map;
1295	$self->difficulty ($self->estimate_difficulty)	2061	$self->difficulty ($self->estimate_difficulty)
1296	unless $self->difficulty;	2062	unless $self->difficulty;
		2063	cf::cede_to_tick;
		2064
		2065	unless ($self->{deny_activate}) {
		2066	$self->decay_objects;
		2067	$self->fix_auto_apply;
		2068	$self->update_buttons;
		2069	cf::cede_to_tick;
1297	$self->activate;	2070	$self->activate;
1298	}	2071	}
1299		2072
1300	Coro::cede;	2073	$self->{last_save} = $cf::RUNTIME;
		2074	$self->last_access ($cf::RUNTIME);
1301		2075
1302	$self->in_memory (cf::MAP_IN_MEMORY);	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	$self
		2092	}
		2093
		2094	# find and load all maps in the 3x3 area around a map
		2095	sub load_neighbours {
		2096	my ($map) = @_;
		2097
		2098	my @neigh; # diagonal neighbours
		2099
		2100	for (0 .. 3) {
		2101	my $neigh = $map->tile_path ($_)
		2102	or next;
		2103	$neigh = find $neigh, $map
		2104	or next;
		2105	$neigh->load;
		2106
		2107	push @neigh,
		2108	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2109	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2110	}
		2111
		2112	for (grep defined $_->[0], @neigh) {
		2113	my ($path, $origin) = @$_;
		2114	my $neigh = find $path, $origin
		2115	or next;
		2116	$neigh->load;
		2117	}
1303	}	2118	}
1304		2119
1305	sub find_sync {	2120	sub find_sync {
1306	my ($path, $origin) = @_;	2121	my ($path, $origin) = @_;
1307		2122
1308	cf::sync_job { cf::map::find $path, $origin }	2123	cf::sync_job { find $path, $origin }
1309	}	2124	}
1310		2125
1311	sub do_load_sync {	2126	sub do_load_sync {
1312	my ($map) = @_;	2127	my ($map) = @_;
1313		2128
		2129	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2130	if $Coro::current == $Coro::main;
		2131
1314	cf::sync_job { $map->load };	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};
		2159	}
		2160	}
		2161	undef $MAP_PREFETCHER;
		2162	};
		2163	$MAP_PREFETCHER->prio (6);
		2164
		2165	()
1315	}	2166	}
1316		2167
1317	sub save {	2168	sub save {
1318	my ($self) = @_;	2169	my ($self) = @_;
1319		2170
		2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2172
1320	$self->{last_save} = $cf::RUNTIME;	2173	$self->{last_save} = $cf::RUNTIME;
1321		2174
1322	return unless $self->dirty;	2175	return unless $self->dirty;
1323		2176
1324	my $save = $self->{path}->save_path; utf8::encode $save;	2177	my $save = $self->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2178	my $uniq = $self->uniq_path; utf8::encode $uniq;
1326		2179
1327	$self->{load_path} = $save;	2180	$self->{load_path} = $save;
1328		2181
1329	return if $self->{deny_save};	2182	return if $self->{deny_save};
1330		2183
1331	local $self->{last_access} = $self->last_access;#d#	2184	local $self->{last_access} = $self->last_access;#d#
1332		2185
		2186	cf::async {
		2187	$Coro::current->{desc} = "map player save";
		2188	$_->contr->save for $self->players;
		2189	};
		2190
		2191	cf::get_slot 0.02;
		2192
1333	if ($uniq) {	2193	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2194	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);	2195	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {	2196	} else {
1337	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2197	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338	}	2198	}
1339	}	2199	}
1340		2200
1341	sub swap_out {	2201	sub swap_out {
1342	my ($self) = @_;	2202	my ($self) = @_;
1343		2203
1344	# save first because save cedes	2204	# save first because save cedes
1345	$self->save;	2205	$self->save;
1346		2206
		2207	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2208
1347	return if $self->players;	2209	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;	2210	return if $self->in_memory != cf::MAP_ACTIVE;
1349	return if $self->{deny_save};	2211	return if $self->{deny_save};
1350		2212
		2213	$self->in_memory (cf::MAP_SWAPPED);
		2214
		2215	$self->deactivate;
		2216	$_->clear_links_to ($self) for values %cf::MAP;
1351	$self->clear;	2217	$self->clear;
1352	$self->in_memory (cf::MAP_SWAPPED);
1353	}	2218	}
1354		2219
1355	sub reset_at {	2220	sub reset_at {
1356	my ($self) = @_;	2221	my ($self) = @_;
1357		2222
1358	# TODO: safety, remove and allow resettable per-player maps	2223	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};
1360	return 1e99 if $self->{deny_reset};	2224	return 1e99 if $self->{deny_reset};
1361		2225
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2226	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2227	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364		2228
…		…
1369	my ($self) = @_;	2233	my ($self) = @_;
1370		2234
1371	$self->reset_at <= $cf::RUNTIME	2235	$self->reset_at <= $cf::RUNTIME
1372	}	2236	}
1373		2237
1374	sub unlink_save {
1375	my ($self) = @_;
1376
1377	utf8::encode (my $save = $self->{path}->save_path);
1378	aioreq_pri 3; IO::AIO::aio_unlink $save;
1379	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380	}
1381
1382	sub rename {
1383	my ($self, $new_path) = @_;
1384
1385	$self->unlink_save;
1386
1387	delete $cf::MAP{$self->path};
1388	$self->{path} = new cf::path $new_path;
1389	$self->path ($self->{path}->as_string);
1390	$cf::MAP{$self->path} = $self;
1391
1392	$self->save;
1393	}
1394
1395	sub reset {	2238	sub reset {
1396	my ($self) = @_;	2239	my ($self) = @_;
1397		2240
		2241	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2242
1398	return if $self->players;	2243	return if $self->players;
1399	return if $self->{path}{user_rel};#d#
1400		2244
1401	warn "resetting map ", $self->path;#d#	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	}
1402		2256
1403	delete $cf::MAP{$self->path};	2257	delete $cf::MAP{$self->path};
1404		2258
		2259	$self->deactivate;
1405	$_->clear_links_to ($self) for values %cf::MAP;	2260	$_->clear_links_to ($self) for values %cf::MAP;
		2261	$self->clear;
1406		2262
1407	$self->unlink_save;	2263	$self->unlink_save;
1408	$self->destroy;	2264	$self->destroy;
1409	}	2265	}
1410		2266
1411	my $nuke_counter = "aaaa";	2267	my $nuke_counter = "aaaa";
1412		2268
1413	sub nuke {	2269	sub nuke {
1414	my ($self) = @_;	2270	my ($self) = @_;
1415		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};
1416	$self->{deny_save} = 1;	2281	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	2282	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	2283	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2284
		2285	$cf::MAP{$self->path} = $self;
		2286	}
		2287
1419	$self->reset; # polite request, might not happen	2288	$self->reset; # polite request, might not happen
1420	}	2289	}
1421		2290
1422	sub customise_for {	2291	=item $maps = cf::map::tmp_maps
1423	my ($map, $ob) = @_;
1424		2292
1425	if ($map->per_player) {	2293	Returns an arrayref with all map paths of currently instantiated and saved
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2294	maps. May block.
		2295
		2296	=cut
		2297
		2298	sub tmp_maps() {
1427	}	2299	[
1428		2300	map {
1429	$map	2301	utf8::decode $_;
		2302	/\.map$/
		2303	? normalise $_
		2304	: ()
		2305	} @{ aio_readdir $TMPDIR or [] }
		2306	]
1430	}	2307	}
1431		2308
1432	sub emergency_save {	2309	=item $maps = cf::map::random_maps
1433	my $freeze_guard = cf::freeze_mainloop;
1434		2310
1435	warn "enter emergency map save\n";	2311	Returns an arrayref with all map paths of currently instantiated and saved
		2312	random maps. May block.
1436		2313
1437	cf::sync_job {	2314	=cut
1438	warn "begin emergency map save\n";	2315
1439	$_->save for values %cf::MAP;	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	=item cf::map::static_maps
		2347
		2348	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2349	file in the shared directory excluding F</styles>). May block.
		2350
		2351	=cut
		2352
		2353	sub static_maps() {
		2354	my @dirs = "";
		2355	my @maps;
		2356
		2357	while (@dirs) {
		2358	my $dir = shift @dirs;
		2359
		2360	next if $dir eq "/styles";
		2361
		2362	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2363	or return;
		2364
		2365	for (@$files) {
		2366	s/\.map$// or next;
		2367	utf8::decode $_;
		2368	push @maps, "$dir/$_";
		2369	}
		2370
		2371	push @dirs, map "$dir/$_", @$dirs;
1440	};	2372	}
1441		2373
1442	warn "end emergency map save\n";	2374	\@maps
		2375	}
		2376
		2377	=back
		2378
		2379	=head3 cf::object
		2380
		2381	=cut
		2382
		2383	package cf::object;
		2384
		2385	=over 4
		2386
		2387	=item $ob->inv_recursive
		2388
		2389	Returns the inventory of the object I<and> their inventories, recursively,
		2390	but I<not> the object itself.
		2391
		2392	=cut
		2393
		2394	sub inv_recursive_;
		2395	sub inv_recursive_ {
		2396	map { $_, inv_recursive_ $_->inv } @_
		2397	}
		2398
		2399	sub inv_recursive {
		2400	inv_recursive_ inv $_[0]
		2401	}
		2402
		2403	=item $ref = $ob->ref
		2404
		2405	Creates and returns a persistent reference to an object that can be stored as a string.
		2406
		2407	=item $ob = cf::object::deref ($refstring)
		2408
		2409	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2410	even if the object actually exists. May block.
		2411
		2412	=cut
		2413
		2414	sub deref {
		2415	my ($ref) = @_;
		2416
		2417	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2418	my ($uuid, $name) = ($1, $2);
		2419	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2420	or return;
		2421	$pl->ob->uuid eq $uuid
		2422	or return;
		2423
		2424	$pl->ob
		2425	} else {
		2426	warn "$ref: cannot resolve object reference\n";
		2427	undef
		2428	}
1443	}	2429	}
1444		2430
1445	package cf;	2431	package cf;
1446		2432
1447	=back	2433	=back
1448
1449		2434
1450	=head3 cf::object::player	2435	=head3 cf::object::player
1451		2436
1452	=over 4	2437	=over 4
1453		2438
…		…
1456	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2441	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1457	can be C<undef>. Does the right thing when the player is currently in a	2442	can be C<undef>. Does the right thing when the player is currently in a
1458	dialogue with the given NPC character.	2443	dialogue with the given NPC character.
1459		2444
1460	=cut	2445	=cut
		2446
		2447	our $SAY_CHANNEL = {
		2448	id => "say",
		2449	title => "Map",
		2450	reply => "say ",
		2451	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2452	};
		2453
		2454	our $CHAT_CHANNEL = {
		2455	id => "chat",
		2456	title => "Chat",
		2457	reply => "chat ",
		2458	tooltip => "Player chat and shouts, global to the server.",
		2459	};
1461		2460
1462	# rough implementation of a future "reply" method that works	2461	# rough implementation of a future "reply" method that works
1463	# with dialog boxes.	2462	# with dialog boxes.
1464	#TODO: the first argument must go, split into a $npc->reply_to ( method	2463	#TODO: the first argument must go, split into a $npc->reply_to ( method
1465	sub cf::object::player::reply($$$;$) {	2464	sub cf::object::player::reply($$$;$) {
…		…
1467		2466
1468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2467	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1469		2468
1470	if ($self->{record_replies}) {	2469	if ($self->{record_replies}) {
1471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2470	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2471
1472	} else {	2472	} else {
		2473	my $pl = $self->contr;
		2474
		2475	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2476	my $dialog = $pl->{npc_dialog};
		2477	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2478
		2479	} else {
1473	$msg = $npc->name . " says: $msg" if $npc;	2480	$msg = $npc->name . " says: $msg" if $npc;
1474	$self->message ($msg, $flags);	2481	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2482	}
1475	}	2483	}
		2484	}
		2485
		2486	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2487
		2488	=cut
		2489
		2490	sub cf::object::send_msg {
		2491	my $pl = shift->contr
		2492	or return;
		2493	$pl->send_msg (@_);
1476	}	2494	}
1477		2495
1478	=item $player_object->may ("access")	2496	=item $player_object->may ("access")
1479		2497
1480	Returns wether the given player is authorized to access resource "access"	2498	Returns wether the given player is authorized to access resource "access"
…		…
1493		2511
1494	=item $player_object->enter_link	2512	=item $player_object->enter_link
1495		2513
1496	Freezes the player and moves him/her to a special map (C<{link}>).	2514	Freezes the player and moves him/her to a special map (C<{link}>).
1497		2515
1498	The player should be reaosnably safe there for short amounts of time. You	2516	The player should be reasonably safe there for short amounts of time (e.g.
1499	I<MUST> call C<leave_link> as soon as possible, though.	2517	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2518	though, as the palyer cannot control the character while it is on the link
		2519	map.
		2520
		2521	Will never block.
1500		2522
1501	=item $player_object->leave_link ($map, $x, $y)	2523	=item $player_object->leave_link ($map, $x, $y)
1502		2524
1503	Moves the player out of the specila link map onto the given map. If the	2525	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	2526	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	2527	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	2528	fails, to the emergency map position.
1507		2529
1508	Might block.	2530	Might block.
1509		2531
1510	=cut	2532	=cut
		2533
		2534	sub link_map {
		2535	unless ($LINK_MAP) {
		2536	$LINK_MAP = cf::map::find "{link}"
		2537	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2538	$LINK_MAP->load;
		2539	}
		2540
		2541	$LINK_MAP
		2542	}
1511		2543
1512	sub cf::object::player::enter_link {	2544	sub cf::object::player::enter_link {
1513	my ($self) = @_;	2545	my ($self) = @_;
1514		2546
1515	$self->deactivate_recursive;	2547	$self->deactivate_recursive;
1516		2548
1517	return if $self->map == $LINK_MAP;	2549	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		2550
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2551	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	2552	if $self->map && $self->map->{path} ne "{link}";
1521		2553
1522	$self->enter_map ($LINK_MAP, 20, 20);	2554	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1523	}	2555	}
1524		2556
1525	sub cf::object::player::leave_link {	2557	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	2558	my ($self, $map, $x, $y) = @_;
		2559
		2560	return unless $self->contr->active;
1527		2561
1528	my $link_pos = delete $self->{_link_pos};	2562	my $link_pos = delete $self->{_link_pos};
1529		2563
1530	unless ($map) {	2564	unless ($map) {
1531	# restore original map position	2565	# restore original map position
…		…
1545	# use -1 or undef as default coordinates, not 0, 0	2579	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	2580	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	2581	if $x <=0 && $y <= 0;
1548		2582
1549	$map->load;	2583	$map->load;
		2584	$map->load_neighbours;
1550		2585
		2586	return unless $self->contr->active;
		2587
		2588	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2589	$self->enter_map ($map, $x, $y);
		2590
		2591	# only activate afterwards, to support waiting in hooks
1551	$self->activate_recursive;	2592	$self->activate_recursive;
1552	$self->enter_map ($map, $x, $y);
1553	}	2593	}
1554		2594
1555	cf::player->attach (	2595	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1556	on_logout => sub {
1557	my ($pl) = @_;
1558		2596
1559	# abort map switching before logout	2597	Moves the player to the given map-path and coordinates by first freezing
1560	if ($pl->ob->{_link_pos}) {	2598	her, loading and preparing them map, calling the provided $check callback
1561	cf::sync_job {	2599	that has to return the map if sucecssful, and then unfreezes the player on
1562	$pl->ob->leave_link	2600	the new (success) or old (failed) map position. In either case, $done will
1563	};	2601	be called at the end of this process.
1564	}
1565	},
1566	on_login => sub {
1567	my ($pl) = @_;
1568		2602
1569	# try to abort aborted map switching on player login :)	2603	Note that $check will be called with a potentially non-loaded map, so if
1570	# should happen only on crashes	2604	it needs a loaded map it has to call C<< ->load >>.
1571	if ($pl->ob->{_link_pos}) {
1572	$pl->ob->enter_link;
1573	cf::async {
1574	# we need this sleep as the login has a concurrent enter_exit running
1575	# and this sleep increases chances of the player not ending up in scorn
1576	Coro::Timer::sleep 1;
1577	$pl->ob->leave_link;
1578	};
1579	}
1580	},
1581	);
1582		2605
1583	=item $player_object->goto_map ($path, $x, $y)
1584
1585	=cut	2606	=cut
1586		2607
		2608	our $GOTOGEN;
		2609
1587	sub cf::object::player::goto_map {	2610	sub cf::object::player::goto {
1588	my ($self, $path, $x, $y) = @_;	2611	my ($self, $path, $x, $y, $check, $done) = @_;
		2612
		2613	# do generation counting so two concurrent goto's will be executed in-order
		2614	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1589		2615
1590	$self->enter_link;	2616	$self->enter_link;
1591		2617
1592	(cf::async {	2618	(async {
1593	$path = new cf::path $path;	2619	$Coro::current->{desc} = "player::goto $path $x $y";
1594		2620
1595	my $map = cf::map::find $path->as_string;	2621	# *tag paths override both path and x|y
		2622	if ($path =~ /^\*(.*)$/) {
		2623	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2624	my $ob = $obs[rand @obs];
		2625
		2626	# see if we actually can go there
		2627	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2628	$ob = $obs[rand @obs];
		2629	} else {
		2630	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	}
		2632	# else put us there anyways for now #d#
		2633
		2634	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2635	} else {
		2636	($path, $x, $y) = (undef, undef, undef);
		2637	}
		2638	}
		2639
		2640	my $map = eval {
		2641	my $map = defined $path ? cf::map::find $path : undef;
		2642
		2643	if ($map) {
1596	$map = $map->customise_for ($self) if $map;	2644	$map = $map->customise_for ($self);
1597		2645	$map = $check->($map) if $check && $map;
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	2646	} else {
1599	# if $map;
1600
1601	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2647	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2648	}
1602		2649
		2650	$map
		2651	};
		2652
		2653	if ($@) {
		2654	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2655	LOG llevError | logBacktrace, Carp::longmess $@;
		2656	}
		2657
		2658	if ($gen == $self->{_goto_generation}) {
		2659	delete $self->{_goto_generation};
1603	$self->leave_link ($map, $x, $y);	2660	$self->leave_link ($map, $x, $y);
		2661	}
		2662
		2663	$done->() if $done;
1604	})->prio (1);	2664	})->prio (1);
1605	}	2665	}
1606		2666
1607	=item $player_object->enter_exit ($exit_object)	2667	=item $player_object->enter_exit ($exit_object)
1608		2668
…		…
1610		2670
1611	sub parse_random_map_params {	2671	sub parse_random_map_params {
1612	my ($spec) = @_;	2672	my ($spec) = @_;
1613		2673
1614	my $rmp = { # defaults	2674	my $rmp = { # defaults
1615	xsize => 10,	2675	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	2676	ysize => (cf::rndm 15, 40),
		2677	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2678	#layout => string,
1617	};	2679	};
1618		2680
1619	for (split /\n/, $spec) {	2681	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	2682	my ($k, $v) = split /\s+/, $_, 2;
1621		2683
…		…
1633	# that depends on the exit object	2695	# that depends on the exit object
1634		2696
1635	my $rmp = parse_random_map_params $exit->msg;	2697	my $rmp = parse_random_map_params $exit->msg;
1636		2698
1637	if ($exit->map) {	2699	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	2700	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	2701	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	2702	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	2703	$rmp->{origin_y} = $exit->y;
		2704
		2705	$exit->map->touch;
1642	}	2706	}
1643		2707
1644	$rmp->{random_seed} ||= $exit->random_seed;	2708	$rmp->{random_seed} ||= $exit->random_seed;
1645		2709
1646	my $data = cf::to_json $rmp;	2710	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1647	my $md5 = Digest::MD5::md5_hex $data;	2711	my $md5 = Digest::MD5::md5_hex $data;
		2712	my $meta = "$RANDOMDIR/$md5.meta";
1648		2713
1649	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2714	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1650	aio_write $fh, 0, (length $data), $data, 0;	2715	aio_write $fh, 0, (length $data), $data, 0;
		2716	undef $fh;
		2717	aio_rename "$meta~", $meta;
1651		2718
		2719	my $slaying = "?random/$md5";
		2720
		2721	if ($exit->valid) {
1652	$exit->slaying ("?random/$md5");	2722	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	2723	$exit->msg (undef);
		2724	}
1654	}	2725	}
1655	}	2726	}
1656		2727
1657	sub cf::object::player::enter_exit {	2728	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	2729	my ($self, $exit) = @_;
1659		2730
1660	return unless $self->type == cf::PLAYER;	2731	return unless $self->type == cf::PLAYER;
1661		2732
1662	$self->enter_link;	2733	$self->enter_link;
1663		2734
1664	(cf::async {	2735	(async {
1665	$self->deactivate_recursive; # just to be sure	2736	$Coro::current->{desc} = "enter_exit";
		2737
1666	unless (eval {	2738	unless (eval {
		2739	$self->deactivate_recursive; # just to be sure
		2740
		2741	# random map handling
		2742	{
		2743	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2744
1667	prepare_random_map $exit	2745	prepare_random_map $exit
1668	if $exit->slaying eq "/!";	2746	if $exit->slaying eq "/!";
		2747	}
1669		2748
1670	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2749	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1671	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2750	my $x = $exit->stats->hp;
		2751	my $y = $exit->stats->sp;
1672		2752
		2753	$self->goto ($map, $x, $y);
		2754
		2755	# if exit is damned, update players death & WoR home-position
		2756	$self->contr->savebed ($map, $x, $y)
		2757	if $exit->flag (cf::FLAG_DAMNED);
		2758
1673	1;	2759	1
1674	}) {	2760	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	2761	$self->message ("Something went wrong deep within the deliantra server. "
1676	. "I'll try to bring you back to the map you were before. "	2762	. "I'll try to bring you back to the map you were before. "
1677	. "Please report this to the dungeon master",	2763	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	2764	cf::NDI_UNIQUE | cf::NDI_RED);
1679		2765
1680	warn "ERROR in enter_exit: $@";	2766	warn "ERROR in enter_exit: $@";
1681	$self->leave_link;	2767	$self->leave_link;
1682	}	2768	}
1683	})->prio (1);	2769	})->prio (1);
…		…
1696		2782
1697	sub cf::client::send_drawinfo {	2783	sub cf::client::send_drawinfo {
1698	my ($self, $text, $flags) = @_;	2784	my ($self, $text, $flags) = @_;
1699		2785
1700	utf8::encode $text;	2786	utf8::encode $text;
1701	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2787	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702	}	2788	}
1703		2789
		2790	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2791
		2792	Send a drawinfo or msg packet to the client, formatting the msg for the
		2793	client if neccessary. C<$type> should be a string identifying the type of
		2794	the message, with C<log> being the default. If C<$color> is negative, suppress
		2795	the message unless the client supports the msg packet.
		2796
		2797	=cut
		2798
		2799	# non-persistent channels (usually the info channel)
		2800	our %CHANNEL = (
		2801	"c/motd" => {
		2802	id => "infobox",
		2803	title => "MOTD",
		2804	reply => undef,
		2805	tooltip => "The message of the day",
		2806	},
		2807	"c/identify" => {
		2808	id => "infobox",
		2809	title => "Identify",
		2810	reply => undef,
		2811	tooltip => "Items recently identified",
		2812	},
		2813	"c/examine" => {
		2814	id => "infobox",
		2815	title => "Examine",
		2816	reply => undef,
		2817	tooltip => "Signs and other items you examined",
		2818	},
		2819	"c/shopinfo" => {
		2820	id => "infobox",
		2821	title => "Shop Info",
		2822	reply => undef,
		2823	tooltip => "What your bargaining skill tells you about the shop",
		2824	},
		2825	"c/book" => {
		2826	id => "infobox",
		2827	title => "Book",
		2828	reply => undef,
		2829	tooltip => "The contents of a note or book",
		2830	},
		2831	"c/lookat" => {
		2832	id => "infobox",
		2833	title => "Look",
		2834	reply => undef,
		2835	tooltip => "What you saw there",
		2836	},
		2837	"c/who" => {
		2838	id => "infobox",
		2839	title => "Players",
		2840	reply => undef,
		2841	tooltip => "Shows players who are currently online",
		2842	},
		2843	"c/body" => {
		2844	id => "infobox",
		2845	title => "Body Parts",
		2846	reply => undef,
		2847	tooltip => "Shows which body parts you posess and are available",
		2848	},
		2849	"c/statistics" => {
		2850	id => "infobox",
		2851	title => "Statistics",
		2852	reply => undef,
		2853	tooltip => "Shows your primary statistics",
		2854	},
		2855	"c/skills" => {
		2856	id => "infobox",
		2857	title => "Skills",
		2858	reply => undef,
		2859	tooltip => "Shows your experience per skill and item power",
		2860	},
		2861	"c/shopitems" => {
		2862	id => "infobox",
		2863	title => "Shop Items",
		2864	reply => undef,
		2865	tooltip => "Shows the items currently for sale in this shop",
		2866	},
		2867	"c/resistances" => {
		2868	id => "infobox",
		2869	title => "Resistances",
		2870	reply => undef,
		2871	tooltip => "Shows your resistances",
		2872	},
		2873	"c/pets" => {
		2874	id => "infobox",
		2875	title => "Pets",
		2876	reply => undef,
		2877	tooltip => "Shows information abotu your pets/a specific pet",
		2878	},
		2879	"c/perceiveself" => {
		2880	id => "infobox",
		2881	title => "Perceive Self",
		2882	reply => undef,
		2883	tooltip => "You gained detailed knowledge about yourself",
		2884	},
		2885	"c/uptime" => {
		2886	id => "infobox",
		2887	title => "Uptime",
		2888	reply => undef,
		2889	tooltip => "How long the server has been running since last restart",
		2890	},
		2891	"c/mapinfo" => {
		2892	id => "infobox",
		2893	title => "Map Info",
		2894	reply => undef,
		2895	tooltip => "Information related to the maps",
		2896	},
		2897	"c/party" => {
		2898	id => "party",
		2899	title => "Party",
		2900	reply => "gsay ",
		2901	tooltip => "Messages and chat related to your party",
		2902	},
		2903	"c/death" => {
		2904	id => "death",
		2905	title => "Death",
		2906	reply => undef,
		2907	tooltip => "Reason for and more info about your most recent death",
		2908	},
		2909	"c/say" => $SAY_CHANNEL,
		2910	"c/chat" => $CHAT_CHANNEL,
		2911	);
		2912
		2913	sub cf::client::send_msg {
		2914	my ($self, $channel, $msg, $color, @extra) = @_;
		2915
		2916	$msg = $self->pl->expand_cfpod ($msg)
		2917	unless $color & cf::NDI_VERBATIM;
		2918
		2919	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2920
		2921	# check predefined channels, for the benefit of C
		2922	if ($CHANNEL{$channel}) {
		2923	$channel = $CHANNEL{$channel};
		2924
		2925	$self->ext_msg (channel_info => $channel);
		2926	$channel = $channel->{id};
		2927
		2928	} elsif (ref $channel) {
		2929	# send meta info to client, if not yet sent
		2930	unless (exists $self->{channel}{$channel->{id}}) {
		2931	$self->{channel}{$channel->{id}} = $channel;
		2932	$self->ext_msg (channel_info => $channel);
		2933	}
		2934
		2935	$channel = $channel->{id};
		2936	}
		2937
		2938	return unless @extra || length $msg;
		2939
		2940	# default colour, mask it out
		2941	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2942	if $color & cf::NDI_DEF;
		2943
		2944	my $pkt = "msg "
		2945	. $self->{json_coder}->encode (
		2946	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2947	);
		2948
		2949	# try lzf for large packets
		2950	$pkt = "lzf " . Compress::LZF::compress $pkt
		2951	if 1024 <= length $pkt and $self->{can_lzf};
		2952
		2953	# split very large packets
		2954	if (8192 < length $pkt and $self->{can_lzf}) {
		2955	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2956	$pkt = "frag";
		2957	}
		2958
		2959	$self->send_packet ($pkt);
		2960	}
		2961
		2962	=item $client->ext_msg ($type, @msg)
		2963
		2964	Sends an ext event to the client.
		2965
		2966	=cut
		2967
		2968	sub cf::client::ext_msg($$@) {
		2969	my ($self, $type, @msg) = @_;
		2970
		2971	if ($self->extcmd == 2) {
		2972	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2973	} elsif ($self->extcmd == 1) { # TODO: remove
		2974	push @msg, msgtype => "event_$type";
		2975	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2976	}
		2977	}
		2978
		2979	=item $client->ext_reply ($msgid, @msg)
		2980
		2981	Sends an ext reply to the client.
		2982
		2983	=cut
		2984
		2985	sub cf::client::ext_reply($$@) {
		2986	my ($self, $id, @msg) = @_;
		2987
		2988	if ($self->extcmd == 2) {
		2989	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2990	} elsif ($self->extcmd == 1) {
		2991	#TODO: version 1, remove
		2992	unshift @msg, msgtype => "reply", msgid => $id;
		2993	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2994	}
		2995	}
1704		2996
1705	=item $success = $client->query ($flags, "text", \&cb)	2997	=item $success = $client->query ($flags, "text", \&cb)
1706		2998
1707	Queues a query to the client, calling the given callback with	2999	Queues a query to the client, calling the given callback with
1708	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3000	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1709	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3001	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1710		3002
1711	Queries can fail, so check the return code. Or don't, as queries will become	3003	Queries can fail, so check the return code. Or don't, as queries will
1712	reliable at some point in the future.	3004	become reliable at some point in the future.
1713		3005
1714	=cut	3006	=cut
1715		3007
1716	sub cf::client::query {	3008	sub cf::client::query {
1717	my ($self, $flags, $text, $cb) = @_;	3009	my ($self, $flags, $text, $cb) = @_;
…		…
1725	utf8::encode $text;	3017	utf8::encode $text;
1726	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3018	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1727		3019
1728	$self->send_packet ($self->{query_queue}[0][0])	3020	$self->send_packet ($self->{query_queue}[0][0])
1729	if @{ $self->{query_queue} } == 1;	3021	if @{ $self->{query_queue} } == 1;
		3022
		3023	1
1730	}	3024	}
1731		3025
1732	cf::client->attach (	3026	cf::client->attach (
		3027	on_connect => sub {
		3028	my ($ns) = @_;
		3029
		3030	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3031	},
1733	on_reply => sub {	3032	on_reply => sub {
1734	my ($ns, $msg) = @_;	3033	my ($ns, $msg) = @_;
1735		3034
1736	# this weird shuffling is so that direct followup queries	3035	# this weird shuffling is so that direct followup queries
1737	# get handled first	3036	# get handled first
1738	my $queue = delete $ns->{query_queue}	3037	my $queue = delete $ns->{query_queue}
1739	or return; # be conservative, not sure how that can happen, but we saw a crash here	3038	or return; # be conservative, not sure how that can happen, but we saw a crash here
1740		3039
1741	(shift @$queue)->[1]->($msg);	3040	(shift @$queue)->[1]->($msg);
		3041	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		3042
1743	push @{ $ns->{query_queue} }, @$queue;	3043	push @{ $ns->{query_queue} }, @$queue;
1744		3044
1745	if (@{ $ns->{query_queue} } == @$queue) {	3045	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	3046	if (@$queue) {
…		…
1748	} else {	3048	} else {
1749	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1750	}	3050	}
1751	}	3051	}
1752	},	3052	},
		3053	on_exticmd => sub {
		3054	my ($ns, $buf) = @_;
		3055
		3056	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3057
		3058	if (ref $msg) {
		3059	my ($type, $reply, @payload) =
		3060	"ARRAY" eq ref $msg
		3061	? @$msg
		3062	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3063
		3064	my @reply;
		3065
		3066	if (my $cb = $EXTICMD{$type}) {
		3067	@reply = $cb->($ns, @payload);
		3068	}
		3069
		3070	$ns->ext_reply ($reply, @reply)
		3071	if $reply;
		3072
		3073	} else {
		3074	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3075	}
		3076
		3077	cf::override;
		3078	},
1753	);	3079	);
1754		3080
1755	=item $client->coro (\&cb)	3081	=item $client->async (\&cb)
1756		3082
1757	Create a new coroutine, running the specified callback. The coroutine will	3083	Create a new coroutine, running the specified callback. The coroutine will
1758	be automatically cancelled when the client gets destroyed (e.g. on logout,	3084	be automatically cancelled when the client gets destroyed (e.g. on logout,
1759	or loss of connection).	3085	or loss of connection).
1760		3086
1761	=cut	3087	=cut
1762		3088
1763	sub cf::client::coro {	3089	sub cf::client::async {
1764	my ($self, $cb) = @_;	3090	my ($self, $cb) = @_;
1765		3091
1766	my $coro = &cf::async ($cb);	3092	my $coro = &Coro::async ($cb);
1767		3093
1768	$coro->on_destroy (sub {	3094	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	3095	delete $self->{_coro}{$coro+0};
1770	});	3096	});
1771		3097
…		…
1798	our $safe = new Safe "safe";	3124	our $safe = new Safe "safe";
1799	our $safe_hole = new Safe::Hole;	3125	our $safe_hole = new Safe::Hole;
1800		3126
1801	$SIG{FPE} = 'IGNORE';	3127	$SIG{FPE} = 'IGNORE';
1802		3128
1803	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3129	$safe->permit_only (Opcode::opset qw(
		3130	:base_core :base_mem :base_orig :base_math
		3131	grepstart grepwhile mapstart mapwhile
		3132	sort time
		3133	));
1804		3134
1805	# here we export the classes and methods available to script code	3135	# here we export the classes and methods available to script code
1806		3136
1807	=pod	3137	=pod
1808		3138
1809	The following fucntions and emthods are available within a safe environment:	3139	The following functions and methods are available within a safe environment:
1810		3140
1811	cf::object contr pay_amount pay_player map	3141	cf::object
		3142	contr pay_amount pay_player map x y force_find force_add destroy
		3143	insert remove name archname title slaying race decrease split
		3144	value
		3145
1812	cf::object::player player	3146	cf::object::player
1813	cf::player peaceful	3147	player
1814	cf::map trigger	3148
		3149	cf::player
		3150	peaceful
		3151
		3152	cf::map
		3153	trigger
1815		3154
1816	=cut	3155	=cut
1817		3156
1818	for (	3157	for (
1819	["cf::object" => qw(contr pay_amount pay_player map)],	3158	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3159	insert remove inv nrof name archname title slaying race
		3160	decrease split destroy change_exp value msg lore send_msg)],
1820	["cf::object::player" => qw(player)],	3161	["cf::object::player" => qw(player)],
1821	["cf::player" => qw(peaceful)],	3162	["cf::player" => qw(peaceful send_msg)],
1822	["cf::map" => qw(trigger)],	3163	["cf::map" => qw(trigger)],
1823	) {	3164	) {
1824	no strict 'refs';	3165	no strict 'refs';
1825	my ($pkg, @funs) = @$_;	3166	my ($pkg, @funs) = @$_;
1826	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3167	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1843	my ($code, %vars) = @_;	3184	my ($code, %vars) = @_;
1844		3185
1845	my $qcode = $code;	3186	my $qcode = $code;
1846	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3187	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1847	$qcode =~ s/\n/\\n/g;	3188	$qcode =~ s/\n/\\n/g;
		3189
		3190	%vars = (_dummy => 0) unless %vars;
1848		3191
1849	local $_;	3192	local $_;
1850	local @safe::cf::_safe_eval_args = values %vars;	3193	local @safe::cf::_safe_eval_args = values %vars;
1851		3194
1852	my $eval =	3195	my $eval =
…		…
1895	=back	3238	=back
1896		3239
1897	=cut	3240	=cut
1898		3241
1899	#############################################################################	3242	#############################################################################
		3243	# the server's init and main functions
1900		3244
1901	=head2 EXTENSION DATABASE SUPPORT	3245	sub load_facedata($) {
		3246	my ($path) = @_;
1902		3247
1903	Crossfire maintains a very simple database for extension use. It can	3248	# HACK to clear player env face cache, we need some signal framework
1904	currently store anything that can be serialised using Storable, which	3249	# for this (global event?)
1905	excludes objects.	3250	%ext::player_env::MUSIC_FACE_CACHE = ();
1906		3251
1907	The parameter C<$family> should best start with the name of the extension	3252	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1908	using it, it should be unique.
1909		3253
1910	=over 4	3254	warn "loading facedata from $path\n";
1911		3255
1912	=item $hashref = cf::db_get $family	3256	my $facedata;
		3257	0 < aio_load $path, $facedata
		3258	or die "$path: $!";
1913		3259
1914	Return a hashref for use by the extension C<$family>, which can be	3260	$facedata = Coro::Storable::thaw $facedata;
1915	modified. After modifications, you have to call C<cf::db_dirty> or
1916	C<cf::db_sync>.
1917		3261
1918	=item $value = cf::db_get $family => $key	3262	$facedata->{version} == 2
		3263	or cf::cleanup "$path: version mismatch, cannot proceed.";
1919		3264
1920	Returns a single value from the database	3265	# patch in the exptable
1921		3266	$facedata->{resource}{"res/exp_table"} = {
1922	=item cf::db_put $family => $hashref	3267	type => FT_RSRC,
1923		3268	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1924	Stores the given family hashref into the database. Updates are delayed, if
1925	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926
1927	=item cf::db_put $family => $key => $value
1928
1929	Stores the given C<$value> in the family hash. Updates are delayed, if you
1930	want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932	=item cf::db_dirty
1933
1934	Marks the database as dirty, to be updated at a later time.
1935
1936	=item cf::db_sync
1937
1938	Immediately write the database to disk I<if it is dirty>.
1939
1940	=cut
1941
1942	our $DB;
1943
1944	{
1945	my $path = cf::localdir . "/database.pst";
1946
1947	sub db_load() {
1948	$DB = stat $path ? Storable::retrieve $path : { };
1949	}
1950
1951	my $pid;
1952
1953	sub db_save() {
1954	waitpid $pid, 0 if $pid;
1955	if (0 == ($pid = fork)) {
1956	$DB->{_meta}{version} = 1;
1957	Storable::nstore $DB, "$path~";
1958	rename "$path~", $path;
1959	cf::_exit 0 if defined $pid;
1960	}
1961	}
1962
1963	my $dirty;
1964
1965	sub db_sync() {
1966	db_save if $dirty;
1967	undef $dirty;
1968	}
1969
1970	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971	db_sync;
1972	});	3269	};
		3270	cf::cede_to_tick;
1973		3271
1974	sub db_dirty() {
1975	$dirty = 1;
1976	$idle->start;
1977	}	3272	{
		3273	my $faces = $facedata->{faceinfo};
1978		3274
1979	sub db_get($;$) {	3275	while (my ($face, $info) = each %$faces) {
1980	@_ >= 2	3276	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1981	? $DB->{$_[0]}{$_[1]}
1982	: ($DB->{$_[0]} ||= { })
1983	}
1984		3277
1985	sub db_put($$;$) {	3278	cf::face::set_visibility $idx, $info->{visibility};
1986	if (@_ >= 3) {	3279	cf::face::set_magicmap $idx, $info->{magicmap};
1987	$DB->{$_[0]}{$_[1]} = $_[2];	3280	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1988	} else {	3281	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1989	$DB->{$_[0]} = $_[1];
1990	}
1991	db_dirty;
1992	}
1993		3282
1994	cf::global->attach (	3283	cf::cede_to_tick;
1995	prio => 10000,
1996	on_cleanup => sub {
1997	db_sync;
1998	},	3284	}
1999	);
2000	}
2001		3285
2002	#############################################################################	3286	while (my ($face, $info) = each %$faces) {
2003	# the server's main()	3287	next unless $info->{smooth};
2004		3288
2005	sub cfg_load {	3289	my $idx = cf::face::find $face
		3290	or next;
		3291
		3292	if (my $smooth = cf::face::find $info->{smooth}) {
		3293	cf::face::set_smooth $idx, $smooth;
		3294	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3295	} else {
		3296	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3297	}
		3298
		3299	cf::cede_to_tick;
		3300	}
		3301	}
		3302
		3303	{
		3304	my $anims = $facedata->{animinfo};
		3305
		3306	while (my ($anim, $info) = each %$anims) {
		3307	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3308	cf::cede_to_tick;
		3309	}
		3310
		3311	cf::anim::invalidate_all; # d'oh
		3312	}
		3313
		3314	{
		3315	# TODO: for gcfclient pleasure, we should give resources
		3316	# that gcfclient doesn't grok a >10000 face index.
		3317	my $res = $facedata->{resource};
		3318
		3319	while (my ($name, $info) = each %$res) {
		3320	if (defined $info->{type}) {
		3321	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3322	my $data;
		3323
		3324	if ($info->{type} & 1) {
		3325	# prepend meta info
		3326
		3327	my $meta = $enc->encode ({
		3328	name => $name,
		3329	%{ $info->{meta} || {} },
		3330	});
		3331
		3332	$data = pack "(w/a*)*", $meta, $info->{data};
		3333	} else {
		3334	$data = $info->{data};
		3335	}
		3336
		3337	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3338	cf::face::set_type $idx, $info->{type};
		3339	} else {
		3340	$RESOURCE{$name} = $info;
		3341	}
		3342
		3343	cf::cede_to_tick;
		3344	}
		3345	}
		3346
		3347	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3348
		3349	1
		3350	}
		3351
		3352	cf::global->attach (on_resource_update => sub {
		3353	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3354	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3355
		3356	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3357	my $sound = $soundconf->{compat}[$_]
		3358	or next;
		3359
		3360	my $face = cf::face::find "sound/$sound->[1]";
		3361	cf::sound::set $sound->[0] => $face;
		3362	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3363	}
		3364
		3365	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3366	my $face = cf::face::find "sound/$v";
		3367	cf::sound::set $k => $face;
		3368	}
		3369	}
		3370	});
		3371
		3372	register_exticmd fx_want => sub {
		3373	my ($ns, $want) = @_;
		3374
		3375	while (my ($k, $v) = each %$want) {
		3376	$ns->fx_want ($k, $v);
		3377	}
		3378	};
		3379
		3380	sub load_resource_file($) {
		3381	my $guard = lock_acquire "load_resource_file";
		3382
		3383	my $status = load_resource_file_ $_[0];
		3384	get_slot 0.1, 100;
		3385	cf::arch::commit_load;
		3386
		3387	$status
		3388	}
		3389
		3390	sub reload_regions {
		3391	# HACK to clear player env face cache, we need some signal framework
		3392	# for this (global event?)
		3393	%ext::player_env::MUSIC_FACE_CACHE = ();
		3394
		3395	load_resource_file "$MAPDIR/regions"
		3396	or die "unable to load regions file\n";
		3397
		3398	for (cf::region::list) {
		3399	$_->{match} = qr/$_->{match}/
		3400	if exists $_->{match};
		3401	}
		3402	}
		3403
		3404	sub reload_facedata {
		3405	load_facedata "$DATADIR/facedata"
		3406	or die "unable to load facedata\n";
		3407	}
		3408
		3409	sub reload_archetypes {
		3410	load_resource_file "$DATADIR/archetypes"
		3411	or die "unable to load archetypes\n";
		3412	}
		3413
		3414	sub reload_treasures {
		3415	load_resource_file "$DATADIR/treasures"
		3416	or die "unable to load treasurelists\n";
		3417	}
		3418
		3419	sub reload_resources {
		3420	warn "reloading resource files...\n";
		3421
		3422	reload_facedata;
		3423	reload_archetypes;
		3424	reload_regions;
		3425	reload_treasures;
		3426
		3427	warn "finished reloading resource files\n";
		3428	}
		3429
		3430	sub reload_config {
		3431	warn "reloading config file...\n";
		3432
2006	open my $fh, "<:utf8", cf::confdir . "/config"	3433	open my $fh, "<:utf8", "$CONFDIR/config"
2007	or return;	3434	or return;
2008		3435
2009	local $/;	3436	local $/;
2010	*CFG = YAML::Syck::Load <$fh>;	3437	*CFG = YAML::XS::Load scalar <$fh>;
2011		3438
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3439	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3440
		3441	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3442	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2013		3443
2014	if (exists $CFG{mlockall}) {	3444	if (exists $CFG{mlockall}) {
2015	eval {	3445	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	3446	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	3447	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	3448	};
2019	warn $@ if $@;	3449	warn $@ if $@;
2020	}	3450	}
		3451
		3452	warn "finished reloading resource files\n";
		3453	}
		3454
		3455	sub pidfile() {
		3456	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3457	or die "$PIDFILE: $!";
		3458	flock $fh, &Fcntl::LOCK_EX
		3459	or die "$PIDFILE: flock: $!";
		3460	$fh
		3461	}
		3462
		3463	# make sure only one server instance is running at any one time
		3464	sub atomic {
		3465	my $fh = pidfile;
		3466
		3467	my $pid = <$fh>;
		3468	kill 9, $pid if $pid > 0;
		3469
		3470	seek $fh, 0, 0;
		3471	print $fh $$;
		3472	}
		3473
		3474	sub main_loop {
		3475	warn "EV::loop starting\n";
		3476	if (1) {
		3477	EV::loop;
		3478	}
		3479	warn "EV::loop returned\n";
		3480	goto &main_loop unless $REALLY_UNLOOP;
2021	}	3481	}
2022		3482
2023	sub main {	3483	sub main {
		3484	cf::init_globals; # initialise logging
		3485
		3486	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3487	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3488	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3489	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3490
		3491	cf::init_experience;
		3492	cf::init_anim;
		3493	cf::init_attackmess;
		3494	cf::init_dynamic;
		3495
		3496	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3497
2024	# we must not ever block the main coroutine	3498	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	3499	local $Coro::idle = sub {
2026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3500	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027	(Coro::unblock_sub {	3501	(async {
2028	Event::one_event;	3502	$Coro::current->{desc} = "IDLE BUG HANDLER";
2029	})->();	3503	EV::loop EV::LOOP_ONESHOT;
		3504	})->prio (Coro::PRIO_MAX);
2030	};	3505	};
2031		3506
2032	cfg_load;	3507	evthread_start IO::AIO::poll_fileno;
2033	db_load;	3508
		3509	cf::sync_job {
		3510	reload_resources;
		3511	reload_config;
		3512	db_init;
		3513
		3514	cf::load_settings;
		3515	cf::load_materials;
		3516	cf::init_uuid;
		3517	cf::init_signals;
		3518	cf::init_commands;
		3519	cf::init_skills;
		3520
		3521	cf::init_beforeplay;
		3522
		3523	atomic;
		3524
2034	load_extensions;	3525	load_extensions;
2035	Event::loop;	3526
		3527	utime time, time, $RUNTIMEFILE;
		3528
		3529	# no (long-running) fork's whatsoever before this point(!)
		3530	use POSIX ();
		3531	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3532
		3533	(pop @POST_INIT)->(0) while @POST_INIT;
		3534	};
		3535
		3536	main_loop;
2036	}	3537	}
2037		3538
2038	#############################################################################	3539	#############################################################################
2039	# initialisation	3540	# initialisation and cleanup
2040		3541
		3542	# install some emergency cleanup handlers
		3543	BEGIN {
		3544	our %SIGWATCHER = ();
		3545	for my $signal (qw(INT HUP TERM)) {
		3546	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3547	cf::cleanup "SIG$signal";
		3548	};
		3549	}
		3550	}
		3551
		3552	sub write_runtime_sync {
		3553	# first touch the runtime file to show we are still running:
		3554	# the fsync below can take a very very long time.
		3555
		3556	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3557
		3558	my $guard = cf::lock_acquire "write_runtime";
		3559
		3560	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3561	or return;
		3562
		3563	my $value = $cf::RUNTIME + 90 + 10;
		3564	# 10 is the runtime save interval, for a monotonic clock
		3565	# 60 allows for the watchdog to kill the server.
		3566
		3567	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3568	and return;
		3569
		3570	# always fsync - this file is important
		3571	aio_fsync $fh
		3572	and return;
		3573
		3574	# touch it again to show we are up-to-date
		3575	aio_utime $fh, undef, undef;
		3576
		3577	close $fh
		3578	or return;
		3579
		3580	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3581	and return;
		3582
		3583	warn "runtime file written.\n";
		3584
		3585	1
		3586	}
		3587
		3588	our $uuid_lock;
		3589	our $uuid_skip;
		3590
		3591	sub write_uuid_sync($) {
		3592	$uuid_skip ||= $_[0];
		3593
		3594	return if $uuid_lock;
		3595	local $uuid_lock = 1;
		3596
		3597	my $uuid = "$LOCALDIR/uuid";
		3598
		3599	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3600	or return;
		3601
		3602	my $value = uuid_seq uuid_cur;
		3603
		3604	unless ($value) {
		3605	warn "cowardly refusing to write zero uuid value!\n";
		3606	return;
		3607	}
		3608
		3609	my $value = uuid_str $value + $uuid_skip;
		3610	$uuid_skip = 0;
		3611
		3612	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3613	and return;
		3614
		3615	# always fsync - this file is important
		3616	aio_fsync $fh
		3617	and return;
		3618
		3619	close $fh
		3620	or return;
		3621
		3622	aio_rename "$uuid~", $uuid
		3623	and return;
		3624
		3625	warn "uuid file written ($value).\n";
		3626
		3627	1
		3628
		3629	}
		3630
		3631	sub write_uuid($$) {
		3632	my ($skip, $sync) = @_;
		3633
		3634	$sync ? write_uuid_sync $skip
		3635	: async { write_uuid_sync $skip };
		3636	}
		3637
		3638	sub emergency_save() {
		3639	my $freeze_guard = cf::freeze_mainloop;
		3640
		3641	warn "emergency_perl_save: enter\n";
		3642
		3643	cf::sync_job {
		3644	# this is a trade-off: we want to be very quick here, so
		3645	# save all maps without fsync, and later call a global sync
		3646	# (which in turn might be very very slow)
		3647	local $USE_FSYNC = 0;
		3648
		3649	# use a peculiar iteration method to avoid tripping on perl
		3650	# refcount bugs in for. also avoids problems with players
		3651	# and maps saved/destroyed asynchronously.
		3652	warn "emergency_perl_save: begin player save\n";
		3653	for my $login (keys %cf::PLAYER) {
		3654	my $pl = $cf::PLAYER{$login} or next;
		3655	$pl->valid or next;
		3656	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3657	$pl->save;
		3658	}
		3659	warn "emergency_perl_save: end player save\n";
		3660
		3661	warn "emergency_perl_save: begin map save\n";
		3662	for my $path (keys %cf::MAP) {
		3663	my $map = $cf::MAP{$path} or next;
		3664	$map->valid or next;
		3665	$map->save;
		3666	}
		3667	warn "emergency_perl_save: end map save\n";
		3668
		3669	warn "emergency_perl_save: begin database checkpoint\n";
		3670	BDB::db_env_txn_checkpoint $DB_ENV;
		3671	warn "emergency_perl_save: end database checkpoint\n";
		3672
		3673	warn "emergency_perl_save: begin write uuid\n";
		3674	write_uuid_sync 1;
		3675	warn "emergency_perl_save: end write uuid\n";
		3676	};
		3677
		3678	warn "emergency_perl_save: starting sync()\n";
		3679	IO::AIO::aio_sync sub {
		3680	warn "emergency_perl_save: finished sync()\n";
		3681	};
		3682
		3683	warn "emergency_perl_save: leave\n";
		3684	}
		3685
		3686	sub post_cleanup {
		3687	my ($make_core) = @_;
		3688
		3689	warn Carp::longmess "post_cleanup backtrace"
		3690	if $make_core;
		3691
		3692	my $fh = pidfile;
		3693	unlink $PIDFILE if <$fh> == $$;
		3694	}
		3695
		3696	# a safer delete_package, copied from Symbol
		3697	sub clear_package($) {
		3698	my $pkg = shift;
		3699
		3700	# expand to full symbol table name if needed
		3701	unless ($pkg =~ /^main::.*::$/) {
		3702	$pkg = "main$pkg" if $pkg =~ /^::/;
		3703	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3704	$pkg .= '::' unless $pkg =~ /::$/;
		3705	}
		3706
		3707	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3708	my $stem_symtab = *{$stem}{HASH};
		3709
		3710	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3711	or return;
		3712
		3713	# clear all symbols
		3714	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3715	for my $name (keys %$leaf_symtab) {
		3716	_gv_clear *{"$pkg$name"};
		3717	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3718	}
		3719	warn "cleared package $pkg\n";#d#
		3720	}
		3721
2041	sub reload() {	3722	sub do_reload_perl() {
2042	# can/must only be called in main	3723	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	3724	if ($Coro::current != $Coro::main) {
2044	warn "can only reload from main coroutine\n";	3725	warn "can only reload from main coroutine";
2045	return;	3726	return;
2046	}	3727	}
2047		3728
		3729	return if $RELOAD++;
		3730
		3731	my $t1 = EV::time;
		3732
		3733	while ($RELOAD) {
2048	warn "reloading...";	3734	warn "reloading...";
2049		3735
2050	my $guard = freeze_mainloop;	3736	warn "entering sync_job";
		3737
		3738	cf::sync_job {
		3739	cf::write_runtime_sync; # external watchdog should not bark
2051	cf::emergency_save;	3740	cf::emergency_save;
		3741	cf::write_runtime_sync; # external watchdog should not bark
2052		3742
2053	eval {	3743	warn "syncing database to disk";
		3744	BDB::db_env_txn_checkpoint $DB_ENV;
		3745
2054	# if anything goes wrong in here, we should simply crash as we already saved	3746	# if anything goes wrong in here, we should simply crash as we already saved
2055		3747
2056	# cancel all watchers	3748	warn "flushing outstanding aio requests";
2057	for (Event::all_watchers) {	3749	while (IO::AIO::nreqs || BDB::nreqs) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;	3750	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2059	}
2060
2061	# cancel all extension coros
2062	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();
2064
2065	# unload all extensions
2066	for (@exts) {
2067	warn "unloading <$_>";
2068	unload_extension $_;
2069	}
2070
2071	# unload all modules loaded from $LIBDIR
2072	while (my ($k, $v) = each %INC) {
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074
2075	warn "removing <$k>";
2076	delete $INC{$k};
2077
2078	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;
2080
2081	if (my $cb = $k->can ("unload_module")) {
2082	$cb->();
2083	}	3751	}
2084		3752
2085	Symbol::delete_package $k;	3753	warn "cancelling all extension coros";
		3754	$_->cancel for values %EXT_CORO;
		3755	%EXT_CORO = ();
		3756
		3757	warn "removing commands";
		3758	%COMMAND = ();
		3759
		3760	warn "removing ext/exti commands";
		3761	%EXTCMD = ();
		3762	%EXTICMD = ();
		3763
		3764	warn "unloading/nuking all extensions";
		3765	for my $pkg (@EXTS) {
		3766	warn "... unloading $pkg";
		3767
		3768	if (my $cb = $pkg->can ("unload")) {
		3769	eval {
		3770	$cb->($pkg);
		3771	1
		3772	} or warn "$pkg unloaded, but with errors: $@";
		3773	}
		3774
		3775	warn "... clearing $pkg";
		3776	clear_package $pkg;
2086	}	3777	}
2087		3778
2088	# sync database to disk	3779	warn "unloading all perl modules loaded from $LIBDIR";
2089	cf::db_sync;	3780	while (my ($k, $v) = each %INC) {
2090	IO::AIO::flush;	3781	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2091		3782
		3783	warn "... unloading $k";
		3784	delete $INC{$k};
		3785
		3786	$k =~ s/\.pm$//;
		3787	$k =~ s/\//::/g;
		3788
		3789	if (my $cb = $k->can ("unload_module")) {
		3790	$cb->();
		3791	}
		3792
		3793	clear_package $k;
		3794	}
		3795
2092	# get rid of safe::, as good as possible	3796	warn "getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	3797	clear_package "safe::$_"
2094	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3798	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095		3799
2096	# remove register_script_function callbacks	3800	warn "unloading cf.pm \"a bit\"";
2097	# TODO
2098
2099	# unload cf.pm "a bit"
2100	delete $INC{"cf.pm"};	3801	delete $INC{"cf.pm"};
		3802	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2101		3803
2102	# don't, removes xs symbols, too,	3804	# don't, removes xs symbols, too,
2103	# and global variables created in xs	3805	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	3806	#clear_package __PACKAGE__;
2105		3807
2106	# reload cf.pm	3808	warn "unload completed, starting to reload now";
		3809
2107	warn "reloading cf.pm";	3810	warn "reloading cf.pm";
2108	require cf;	3811	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3812	cf::_connect_to_perl_1;
2110		3813
2111	# load config and database again	3814	warn "loading config and database again";
2112	cf::cfg_load;	3815	cf::reload_config;
2113	cf::db_load;
2114		3816
2115	# load extensions
2116	warn "load extensions";	3817	warn "loading extensions";
2117	cf::load_extensions;	3818	cf::load_extensions;
2118		3819
2119	# reattach attachments to objects	3820	if ($REATTACH_ON_RELOAD) {
		3821	warn "reattaching attachments to objects/players";
		3822	_global_reattach; # objects, sockets
		3823	warn "reattaching attachments to maps";
		3824	reattach $_ for values %MAP;
		3825	warn "reattaching attachments to players";
		3826	reattach $_ for values %PLAYER;
		3827	}
		3828
		3829	warn "running post_init jobs";
		3830	(pop @POST_INIT)->(1) while @POST_INIT;
		3831
		3832	warn "leaving sync_job";
		3833
		3834	1
		3835	} or do {
		3836	warn $@;
		3837	cf::cleanup "error while reloading, exiting.";
		3838	};
		3839
2120	warn "reattach";	3840	warn "reloaded";
2121	_global_reattach;	3841	--$RELOAD;
		3842	}
		3843
		3844	$t1 = EV::time - $t1;
		3845	warn "reload completed in ${t1}s\n";
		3846	};
		3847
		3848	our $RELOAD_WATCHER; # used only during reload
		3849
		3850	sub reload_perl() {
		3851	# doing reload synchronously and two reloads happen back-to-back,
		3852	# coro crashes during coro_state_free->destroy here.
		3853
		3854	$RELOAD_WATCHER ||= cf::async {
		3855	Coro::AIO::aio_wait cache_extensions;
		3856
		3857	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3858	do_reload_perl;
		3859	undef $RELOAD_WATCHER;
		3860	};
2122	};	3861	};
2123
2124	if ($@) {
2125	warn $@;
2126	warn "error while reloading, exiting.";
2127	exit 1;
2128	}
2129
2130	warn "reloaded successfully";
2131	};
2132
2133	#############################################################################
2134
2135	unless ($LINK_MAP) {
2136	$LINK_MAP = cf::map::new;
2137
2138	$LINK_MAP->width (41);
2139	$LINK_MAP->height (41);
2140	$LINK_MAP->alloc;
2141	$LINK_MAP->path ("{link}");
2142	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145	# dirty hack because... archetypes are not yet loaded
2146	Event->timer (
2147	after => 2,
2148	cb => sub {
2149	$_[0]->w->cancel;
2150
2151	# provide some exits "home"
2152	my $exit = cf::object::new "exit";
2153
2154	$exit->slaying ($EMERGENCY_POSITION->[0]);
2155	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158	$LINK_MAP->insert ($exit->clone, 19, 19);
2159	$LINK_MAP->insert ($exit->clone, 19, 20);
2160	$LINK_MAP->insert ($exit->clone, 19, 21);
2161	$LINK_MAP->insert ($exit->clone, 20, 19);
2162	$LINK_MAP->insert ($exit->clone, 20, 21);
2163	$LINK_MAP->insert ($exit->clone, 21, 19);
2164	$LINK_MAP->insert ($exit->clone, 21, 20);
2165	$LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167	$exit->destroy;
2168	});
2169
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}	3862	}
2175
2176	register "<global>", __PACKAGE__;
2177		3863
2178	register_command "reload" => sub {	3864	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	3865	my ($who, $arg) = @_;
2180		3866
2181	if ($who->flag (FLAG_WIZ)) {	3867	if ($who->flag (FLAG_WIZ)) {
2182	$who->message ("start of reload.");
2183	reload;
2184	$who->message ("end of reload.");	3868	$who->message ("reloading server.");
		3869	async {
		3870	$Coro::current->{desc} = "perl_reload";
		3871	reload_perl;
		3872	};
2185	}	3873	}
2186	};	3874	};
2187		3875
2188	unshift @INC, $LIBDIR;	3876	unshift @INC, $LIBDIR;
2189		3877
2190	$TICK_WATCHER = Event->timer (	3878	my $bug_warning = 0;
2191	reentrant => 0,	3879
2192	prio => 0,	3880	our @WAIT_FOR_TICK;
2193	at => $NEXT_TICK || $TICK,	3881	our @WAIT_FOR_TICK_BEGIN;
2194	data => WF_AUTOCANCEL,	3882
2195	cb => sub {	3883	sub wait_for_tick {
		3884	return if tick_inhibit || $Coro::current == $Coro::main;
		3885
		3886	my $signal = new Coro::Signal;
		3887	push @WAIT_FOR_TICK, $signal;
		3888	$signal->wait;
		3889	}
		3890
		3891	sub wait_for_tick_begin {
		3892	return if tick_inhibit || $Coro::current == $Coro::main;
		3893
		3894	my $signal = new Coro::Signal;
		3895	push @WAIT_FOR_TICK_BEGIN, $signal;
		3896	$signal->wait;
		3897	}
		3898
		3899	sub tick {
		3900	if ($Coro::current != $Coro::main) {
		3901	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3902	unless ++$bug_warning > 10;
		3903	return;
		3904	}
		3905
2196	cf::server_tick; # one server iteration	3906	cf::server_tick; # one server iteration
2197	$RUNTIME += $TICK;
2198	$NEXT_TICK += $TICK;
2199		3907
2200	# if we are delayed by four ticks or more, skip them all	3908	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3909	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2202		3910	Coro::async_pool {
2203	$TICK_WATCHER->at ($NEXT_TICK);	3911	$Coro::current->{desc} = "runtime saver";
2204	$TICK_WATCHER->start;
2205	},
2206	);
2207
2208	IO::AIO::max_poll_time $TICK * 0.2;
2209
2210	Event->io (
2211	fd => IO::AIO::poll_fileno,
2212	poll => 'r',
2213	prio => 5,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217
2218	Event->timer (
2219	data => WF_AUTOCANCEL,
2220	after => 0,
2221	interval => 10,
2222	cb => sub {
2223	(Coro::unblock_sub {
2224	write_runtime	3912	write_runtime_sync
2225	or warn "ERROR: unable to write runtime file: $!";	3913	or warn "ERROR: unable to write runtime file: $!";
2226	})->();	3914	};
2227	},	3915	}
2228	);	3916
		3917	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3918	$sig->send;
		3919	}
		3920	while (my $sig = shift @WAIT_FOR_TICK) {
		3921	$sig->send;
		3922	}
		3923
		3924	$LOAD = ($NOW - $TICK_START) / $TICK;
		3925	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3926
		3927	if (0) {
		3928	if ($NEXT_TICK) {
		3929	my $jitter = $TICK_START - $NEXT_TICK;
		3930	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3931	warn "jitter $JITTER\n";#d#
		3932	}
		3933	}
		3934	}
		3935
		3936	{
		3937	# configure BDB
		3938
		3939	BDB::min_parallel 8;
		3940	BDB::max_poll_reqs $TICK * 0.1;
		3941	$AnyEvent::BDB::WATCHER->priority (1);
		3942
		3943	unless ($DB_ENV) {
		3944	$DB_ENV = BDB::db_env_create;
		3945	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3946	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3947	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3948	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3949	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3950
		3951	cf::sync_job {
		3952	eval {
		3953	BDB::db_env_open
		3954	$DB_ENV,
		3955	$BDBDIR,
		3956	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3957	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3958	0666;
		3959
		3960	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3961	};
		3962
		3963	cf::cleanup "db_env_open(db): $@" if $@;
		3964	};
		3965	}
		3966
		3967	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3968	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3969	};
		3970	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3971	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3972	};
		3973	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3974	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3975	};
		3976	}
		3977
		3978	{
		3979	# configure IO::AIO
		3980
		3981	IO::AIO::min_parallel 8;
		3982	IO::AIO::max_poll_time $TICK * 0.1;
		3983	undef $AnyEvent::AIO::WATCHER;
		3984	}
		3985
		3986	my $_log_backtrace;
		3987
		3988	sub _log_backtrace {
		3989	my ($msg, @addr) = @_;
		3990
		3991	$msg =~ s/\n//;
		3992
		3993	# limit the # of concurrent backtraces
		3994	if ($_log_backtrace < 2) {
		3995	++$_log_backtrace;
		3996	my $perl_bt = Carp::longmess $msg;
		3997	async {
		3998	$Coro::current->{desc} = "abt $msg";
		3999
		4000	my @bt = fork_call {
		4001	@addr = map { sprintf "%x", $_ } @addr;
		4002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4004	or die "addr2line: $!";
		4005
		4006	my @funcs;
		4007	my @res = <$fh>;
		4008	chomp for @res;
		4009	while (@res) {
		4010	my ($func, $line) = splice @res, 0, 2, ();
		4011	push @funcs, "[$func] $line";
		4012	}
		4013
		4014	@funcs
		4015	};
		4016
		4017	LOG llevInfo, "[ABT] $perl_bt\n";
		4018	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4019	LOG llevInfo, "[ABT] $_\n" for @bt;
		4020	--$_log_backtrace;
		4021	};
		4022	} else {
		4023	LOG llevInfo, "[ABT] $msg\n";
		4024	LOG llevInfo, "[ABT] [suppressed]\n";
		4025	}
		4026	}
		4027
		4028	# load additional modules
		4029	require "cf/$_.pm" for @EXTRA_MODULES;
		4030	cf::_connect_to_perl_2;
2229		4031
2230	END { cf::emergency_save }	4032	END { cf::emergency_save }
2231		4033
2232	1	4034	1
2233		4035

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